CN112477065B

CN112477065B - A kind of rattan plastic extrusion molding production line and method thereof

Info

Publication number: CN112477065B
Application number: CN202011216672.8A
Authority: CN
Inventors: 代明友; 张加苗
Original assignee: Anhui Daijia Technology Co ltd
Current assignee: Anhui Daijia Industrial Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-10-22
Anticipated expiration: 2040-11-04
Also published as: CN112477065A; WO2022095408A1

Abstract

The invention relates to a rattan plastic extrusion molding production line and a method thereof. The production line comprises a workbench and at least one set of melt extruders arranged on the workbench, and further comprises: a die assembly; a cooling device; The transmission unit drives the rewinding rack to rotate to wind the rattan plastic strip; and the rewinding and tying device includes a water storage bucket, a reeling assembly, a tying assembly and a bracket, and the reeling assembly is arranged in the reeling rack and is driven with the reeling rack The connection, the reel-changing component takes over the rattan plastic strip that is being wound and moves downward, and the bundling component bundles the rattan plastic strip replaced by the reel-changing component; the method includes a melt extrusion process, a cooling and setting process, a winding process, and a reel changing process. and the binding process. By setting the roll changing and tying device to cooperate with the movement of the winding frame, the rattan plastic strips with the number of turns are measured and rolled down, and then the strapping components automatically bundle the rattan plastic strips, which speeds up the cooling and shaping of the rattan plastic strips and greatly improves the efficiency.

Description

Extrusion molding production line and method for rattan-woven plastic

Technical Field

The invention relates to the technical field of plastic processing equipment, in particular to an extrusion molding production line and method for rattan woven plastic.

Background

At present, the rattan chair hanging basket swing is popular as a household leisure chair, and in the production process of the rattan chair hanging basket swing, a steel pipe frame is usually used as a framework, and various rattans are wound and woven on the framework for forming. An existing rattan hanging basket swing usually selects artificial plastic rattans, wherein tubular rattan plaited materials are rolled in a messy mode in the machining process, and the rattan plaited materials cannot be automatically tied up.

Patent document No. CN201610775506.9 discloses a rattan-like woven rattan and a production method thereof, which is characterized in that: the device comprises at least one plastic extruder which is butted with an extrusion die; a material pushing screw of the plastic extruder is driven by a servo motor or a variable frequency motor; a cooling groove is arranged behind the extrusion die; the back of the cooling tank is provided with an adjuster, a roller of the adjuster is clamped on the surface of the rattan, the adjuster is driven by a servo motor or a variable frequency motor to rotate, a collector is connected with the back of the adjuster, and the rattan led out from the adjuster is wound on the collector.

However, in the actual use process, the inventor finds that the rattan woven plastic strip cannot be changed and bundled automatically after being rolled up after being extruded and molded.

Disclosure of Invention

One of the purposes of the invention is to provide an extrusion molding production line of rattan woven plastic, which is characterized in that a coil changing and binding device is arranged to match with a winding frame to move, rattan woven plastic strips with determined turns are measured and changed, then a binding assembly automatically binds the rattan woven plastic strips, the automatic packing work of the rattan woven plastic strips is completed, and the technical problem that the rattan woven plastic strips cannot be changed and automatically bound after being extruded and molded in the background art is solved.

Aiming at the technical problems, the technical scheme is as follows:

an extrusion molding production line of rattan woven plastics comprises: workstation and set up in at least a set of melt extruder on the workstation, its characterized in that still includes:

a die head assembly that collects the raw materials of the melt extruder and extrudes a rattan-woven plastic strip;

the cooling device is arranged at the discharge end of the die head assembly and comprises a cooling water tank for cooling the rattan woven plastic strip and allowing the rattan woven plastic strip to pass through, an impeller unit arranged on the path of the cooling water tank and a transmission unit in transmission connection with the impeller unit;

the winding frame is arranged at the tail end of the cooling water tank, and the transmission unit drives the winding frame to rotate to wind the rattan woven plastic strip; and

roll change binding apparatus, roll change binding apparatus set up in the below of rolling up the frame, it is including depositing the cask, roll change subassembly, tying up subassembly and support, roll change the subassembly set up in the rolling up the frame and its with the rolling up the transmission is connected, roll change the subassembly accept being around rolling rattan woven plastics strip and descending motion, tie up the subassembly set up in under the roll change subassembly, it sets up to right rattan woven plastics strip that the roll change subassembly changed down ties up, the support is fixed set up in deposit on the cask, the rolling up the frame is relative the support free rotation sets up on this support.

As an improvement, the die head assembly comprises a die head body, an extrusion ring arranged in the die head body and correspondingly connected with the melting extruder, an inner pipe arranged in the extrusion ring, and an outer pipe unit sleeved outside the inner pipe, wherein the inner pipe penetrates through a first water injection port on the side wall of the die head body, a second water injection port is arranged on the side wall of the outer pipe unit, and the free end part of the inner pipe is coaxially arranged with the die head body and extends out of the die head body;

the outer side wall of the inner tube is matched with the inner diameter of the extrusion ring, the inner wall of the inner tube is arranged into a horn-shaped flaring along the discharge direction of the extrusion ring, and the cooling water is guided to the inside of the rattan-woven plastic strip extruded and formed by the extrusion ring by the inner tube.

As an improvement, the outer tube unit comprises a water inlet part connected with the die head body and a cooling part integrally formed with the water inlet part, the water inlet part is coated on the free end part of the inner tube, the water inlet part is provided with a nested tube, the inner diameter of the nested tube is larger than the outer diameter of the inner tube, and a water inlet cavity is formed between the outer side wall of the nested tube and the inner wall of the water inlet part.

As an improvement, the cooling water tank comprises a lower layer through groove and an upper layer through groove, the lower layer through groove receives cooling water transmitted by the outer pipe unit, the tail end of the upper layer through groove is communicated with the tail part of the lower layer through groove, the upper layer through groove enables the cooling water in the lower layer through groove to flow back, and the upper layer through groove accommodates the rattan woven plastic strip to pass through;

the impeller unit comprises a rotating shaft, and a second impeller A and a second impeller B which are integrally connected to the rotating shaft, wherein the second impeller A is arranged in the lower-layer through groove, and the second impeller B is arranged in the upper-layer through groove;

the transmission unit includes: one end of the chain wheel set is in transmission connection with the rotating shaft; and the conical wheel set is in transmission connection with the other end of the chain wheel set and the winding frame.

As an improvement, the roll change assembly comprises:

the bevel teeth a are arranged on the bracket;

the winding changing chains are arranged on the winding frame in an array mode along the rotary circumference of the winding frame and are used for supporting the rattan woven plastic strip wound by the winding frame and gradually descending and conveying the rattan woven plastic strip;

the transmission rotating shaft is arranged on the winding frame, is meshed with the bevel teeth a through a gear and transmits power to the reel changing chain; and

and the cutting unit is in chain transmission fit with the reel changing chain and is arranged to cut the rattan woven plastic strip.

As an improvement, the bundling assembly comprises an iron wire output unit and an iron wire bundling unit, the iron wire output unit is in transmission connection with the winding frame to output the iron wires, and the iron wire bundling unit receives the conveyed iron wires and bundles the conveyed iron wires on the rattan woven plastic strips which are completed by the reel changing assembly.

As an improvement, the iron wire output unit includes:

a base;

the iron wire storage barrel is arranged above the base and can freely rotate relative to the base;

the bottom of the driving shaft is connected to the reel changing assembly through a belt in a transmission manner, and the middle of the driving shaft is provided with a gear for driving the iron wire storage barrel to rotate;

the wire outlet driving wheel is arranged at the top end of the driving shaft and drives the iron wires in the iron wire storage barrel to be output outwards; and

the deflector, the deflector set up in go out the output of silk drive wheel, it is right the trend of iron wire is guided.

As an improvement, the iron wire tying unit includes:

the first bent plate is hinged to the bottom of the inner cavity of the water storage barrel, and the hinged position of the first bent plate is located at the rotating outer edge of the reel changing assembly;

the second bent plate is hinged to the bottom of the inner cavity of the water storage barrel and arranged corresponding to the first bent plate, and the first bent plate and the second bent plate accommodate iron wires conveyed by the iron wire output unit;

the pushing plate is arranged on the outer side of the first bent plate, the upper end of the pushing plate is elastically connected with the first bent plate, and the lower end of the pushing plate and the first bent plate are hinged to the bottom of the inner cavity of the water storage barrel together;

the folding driving group is arranged at the bottom of the inner cavity of the water storage barrel and drives the pushing plate and the second bending plate to synchronously rotate and fold or open; and

and the bundling winding group is arranged at the end part of the second bent plate and winds two end parts of the iron wire taken up by the folding of the first bent plate and the second bent plate.

As an improvement, the top of the pushing plate is provided with a rack, and the bundling winding group comprises:

the driving gear can be in matched transmission with the rack; and

the winding piece is integrally connected to the rotating shaft of the driving gear, two symmetrical notches are formed in the circumference of the winding piece, and the notches hook the two ends of the iron wire and wind the iron wire together when the winding piece rotates.

As an improvement, the upper ends of the first bent plate and the second bent plate are provided with grooves for avoiding the winding part, and inclined cushion high tables are arranged below the grooves and abut against the two ends of the iron wire and jack up the iron wire.

The invention also aims to provide an extrusion molding production method of rattan woven plastic, which accelerates the cooling and shaping of the rattan woven plastic strip through the automatic operation of the melting and extrusion process, the cooling and shaping process, the winding process, the coil changing process and the bundling process, realizes the automatic coil changing and bundling operation, and greatly improves the efficiency.

Aiming at the technical problems, the technical scheme is as follows:

the extrusion molding production method of the rattan woven plastic is characterized by comprising the following steps:

step one, a melt extrusion process, namely heating and melting plastic master batches by a melt extruder, extruding the plastic master batches from a die head body, and outputting annular tubular rattan woven plastic strips outwards when raw materials pass through an extrusion ring;

step two, a cooling and shaping process, namely performing water cooling work on the outer wall of the rattan woven plastic strip which is conveyed forwards by a cooling water tank, simultaneously enabling another path of cooling water to enter the inner pipe from a first water injection port and to impact the inner wall of the rattan woven plastic strip, and enabling the path of cooling water to cool the inner wall of the rattan woven plastic strip and provide outward supporting force for the rattan woven plastic strip so as to shape the rattan woven plastic strip;

step three, a winding process, in which the winding frame is driven by the transmission unit to rotate so as to wind the rattan woven plastic strip;

step four, a coil changing process, in the step three, a coil changing chain in a coil changing assembly is arranged on a winding frame to support the rattan woven plastic strip which is being wound and gradually descend until the rattan woven plastic strip is wound for a set number of turns, a cutting unit cuts off the rattan woven plastic strip, and the rattan woven plastic strip which is wound falls downwards;

and step five, a bundling procedure, namely, after the step four, the bundling assembly bundles and outputs the fallen rattan woven plastic strip roll.

The invention has the beneficial effects that:

(1) according to the automatic packaging machine, the coil changing and bundling device is arranged to be matched with the motion of the winding frame, the rattan woven plastic strips with determined turns are measured and are changed, then the bundling assembly automatically bundles the rattan woven plastic strips, the automatic packaging work of the rattan woven plastic strips is completed, and the automatic operation of the melting extrusion process, the cooling and shaping process, the winding process, the coil changing process and the bundling process is matched, so that the cooling and shaping of the rattan woven plastic strips are accelerated, the automatic coil changing and bundling operation is realized, and the efficiency is greatly improved;

(2) according to the invention, the inner pipe is arranged to convey cooling water to the inside of the rattan-woven plastic strip for cooling, and the outer pipe unit also conveys cooling water for cooling the rattan-woven plastic strip, so that the rattan-woven plastic strip is cooled inside and outside simultaneously, the inner pipe conveys cooling water to play a supporting role on the rattan-woven plastic strip and keep the shape of a pipeline, and the winding of the winding frame is matched with the stroke of the outer pipe unit conveying cooling water, so that the winding tension of the rattan-woven plastic strip is stable;

(3) according to the invention, the cooling device is arranged to realize water flushing and cooling on the rattan woven plastic strip on one hand, and on the other hand, the cooling device can generate a rotary driving force to synchronously drive the winding frame to rotate;

(4) according to the invention, the propulsion piece is arranged to advance and push the rattan-woven plastic strip in the outer tube, and a traction mechanism is not required to be additionally arranged to pull the rattan-woven plastic strip forward, so that the structure is simple;

(5) the water storage barrel is arranged, so that cooling water rushed out of the rattan woven plastic strip by the inner pipe is collected, and the cooling water is temporarily stored and cooled, so that the heat of the cooling water is reduced, and the cooling water can be used for circulating cooling.

In conclusion, the equipment has the advantages of automatic roll changing and bundling, high-efficiency cooling, stable rolling tension, synchronous driving and simple structure, and is particularly suitable for the technical field of plastic processing equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the whole of the present invention.

FIG. 2 is a schematic diagram of the structure of the die assembly.

FIG. 3 is a front cross-sectional schematic view of a die assembly.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Fig. 5 is an enlarged schematic view of B in fig. 3.

FIG. 6 is a partially cut-away perspective view of the die assembly.

Fig. 7 is an operational view of the pusher.

Fig. 8 is a schematic structural view of the propelling member.

Fig. 9 is a schematic top view of the cooling device.

Fig. 10 is a partially cut-away schematic view of a cooling device.

Fig. 11 is an enlarged view of C in fig. 10.

FIG. 12 is a front view partially in section of the present invention.

Fig. 13 is a schematic cross-sectional view of a wind-up reel and change strapping apparatus.

Fig. 14 is an enlarged view of D in fig. 13.

Fig. 15 is a schematic view of the structure of the roll change binding apparatus.

Fig. 16 is a schematic view of the operation of the wire outlet drive wheel.

Fig. 17 is a schematic structural view of a winding frame and a reel change assembly.

Fig. 18 is an operation diagram of the cutting unit.

Fig. 19 is a schematic view of the strapping assembly.

Fig. 20 is an enlarged view at F in fig. 19.

Fig. 21 is a schematic view of the movement of the binding assembly to bind the wound wire.

FIG. 22 is a process flow diagram of the present invention.

Detailed Description

The technical scheme in the embodiment of the invention is clearly and completely explained by combining the attached drawings.

Example one

As shown in fig. 1 and 2, an extrusion molding production line for rattan woven plastic comprises: workstation 1 and set up in at least a set of melt extruder 2 on workstation 1 still includes:

the die head component 3 collects the raw materials of the melting extruder 2 and extrudes the rattan-woven plastic strip 10;

the cooling device 4 is arranged at the discharge end of the die head assembly 3, and comprises a cooling water tank 41 for cooling the rattan woven plastic strip 10 and allowing the rattan woven plastic strip 10 to pass through, an impeller unit 42 arranged on the path of the cooling water tank 41, and a transmission unit 43 in transmission connection with the impeller unit 42;

the winding frame 5 is arranged at the tail end of the cooling water tank 41, and the transmission unit 43 transmits the winding frame 5 to rotate so as to wind the rattan woven plastic strip 10; and

the coil changing and binding device 6 is arranged below the winding frame 5 and comprises a water storage barrel 61, a coil changing assembly 62, a binding assembly 63 and a support 64, wherein the coil changing assembly 62 is arranged in the winding frame 5 and is in transmission connection with the winding frame 5, the coil changing assembly 62 receives the rattan woven plastic strip 10 which is wound and moves downwards, the binding assembly 63 is arranged under the coil changing assembly 62 and is used for binding the rattan woven plastic strip 10 changed by the coil changing assembly 62, the support 64 is fixedly arranged on the water storage barrel 61, and the winding frame 5 is freely and rotatably arranged on the support 64 relative to the support 64.

As shown in fig. 3 to 6, further, the die assembly 3 includes a die body 31, an extrusion ring 32 disposed in the die body 31 and correspondingly connected to the melting extruder 2, an inner tube 33 disposed in the extrusion ring 32, and an outer tube unit 34 sleeved outside the inner tube 33, where the inner tube 33 penetrates through a first water injection port 331 on a side wall of the die body 31, a second water injection port 341 is disposed on a side wall of the outer tube unit 34, and a free end portion of the inner tube 33 is disposed coaxially with the die body 31 and protrudes out of the die body 31;

the outer side wall of the inner pipe 33 is matched with the inner diameter of the extrusion ring 32, the inner wall of the inner pipe 33 is arranged to be flared along the discharge direction of the extrusion ring 32, and the inner pipe 33 guides cooling water to the inside of the rattan-woven plastic strip 10 extruded and formed by the extrusion ring 32.

Specifically, the die head body 31 is provided with a plurality of extruding channels 311, the extruding channels 311 are arranged in one-to-one correspondence to the melting extruder 2, the plurality of extruding channels 311 converge the melted raw materials to the extruding ring 32 to form the rattan woven plastic strip 10, the inner tube 33 penetrates through the extruding ring 32 from the center of the die head body 31, so that cooling water is introduced into the rattan woven plastic strip 10 to advance together with the rattan woven plastic strip 10, meanwhile, the outer tube unit 34 is also filled with the cooling water to cool the outer wall of the rattan woven plastic strip 10, the cooling water introduced into the inner tube 33 and the outer tube unit 34 simultaneously forms pressure maintaining and shaping on the rattan woven plastic strip 10, in addition, the cooling device 4 cools the rattan woven plastic strip 10 again and drives the winding frame 5 to wind synchronously, and finally, the coil changing and bundling device 6 completes coil changing and bundling of the rattan woven plastic strip 10.

It should be noted that, the inner tube 33 is set to be a flared opening, so as to avoid the decrease of the extrusion temperature of the die head body 31 caused by the thin wall at the root of the inner tube 33, and as the opening of the inner tube 33 is gradually enlarged, the wall thickness of the inner tube is reduced, the cooling water in the inner tube 33 gradually absorbs the heat of the rattan woven plastic strip 10 wrapped outside the inner tube 33 through heat conduction, and performs primary cooling and shaping on the rattan woven plastic strip 10, and then the cooling water completely rushes out of the inner tube 33 to contact and cool the inner wall of the rattan woven plastic strip 10.

Further, the outer tube unit 34 includes a water inlet portion 342 connected to the die body 31 and a cooling portion 343 integrally formed with the water inlet portion 342, the water inlet portion 342 is wrapped around the free end portion of the inner tube 33, the water inlet portion 342 is provided with a nested tube 344, the inner diameter of the nested tube 344 is larger than the outer diameter of the inner tube 33, and a water inlet cavity 345 is formed between the outer side wall of the nested tube 344 and the inner wall of the water inlet portion 342.

It should be noted that the inner diameter of the nested tube 344 is larger than the outer diameter of the inner tube 33, that is, the outer wall of the rattan-woven plastic strip 10 and the inner wall of the nested tube 344 are provided with a gap, and no cooling water exists in the gap, so that the rattan-woven plastic strip 10 is not shrunk by quenching at the initial position extruded by the extrusion ring 32.

It should also be noted that the free end of nested tube 344 is provided with a flexible sealing ring 3414, and the flexible sealing ring 3414 is wrapped around rattan-plaited plastic strip 10 and is sealed in sliding manner, so as to prevent cooling water from entering the gap between the outer wall of rattan-plaited plastic strip 10 and the inner wall of nested tube 344.

As shown in fig. 9 to 12, further, the cooling water tank 41 includes a lower layer through groove 411 and an upper layer through groove 412, the lower layer through groove 411 receives the cooling water delivered by the outer pipe unit 34, the tail end of the upper layer through groove 412 is communicated with the tail of the lower layer through groove 411, the upper layer through groove 412 returns the cooling water of the lower layer through groove 411, and the upper layer through groove 412 receives the rattan woven plastic strip 10 to pass through;

the impeller unit 42 includes a rotating shaft 421, and a second impeller a422 and a second impeller B423 integrally connected to the rotating shaft 421, wherein the second impeller a422 is disposed in the lower through groove 411, and the second impeller B423 is disposed in the upper through groove 412;

the transmission unit 43 includes: a sprocket set 431, wherein one end of the sprocket set 431 is in transmission connection with the rotating shaft 421; and the conical wheel set 432 is in transmission connection with the other end of the chain wheel set 431 and the winding frame 5.

As shown in fig. 17 and 18, further, the roll changing assembly 62 includes:

the bevel teeth a621, the bevel teeth a621 is arranged on the bracket 64;

a plurality of groups of winding chains 622 are arranged on the winding frame 5 along the revolving circumference of the winding frame 5 in an array manner, and the winding chains 622 are arranged to support and gradually descend and convey the rattan-woven plastic strip 10 wound by the winding frame 5;

the transmission rotating shaft 623 is arranged on the winding frame 5, and the transmission rotating shaft 623 is meshed with the bevel gear a621 through a gear and transmits power to the reel changing chain 622; and

a cutting unit 624, the cutting unit 624 is in transmission fit with the reel changing chain 622, and the cutting unit 624 is configured to cut the rattan woven plastic strip 10.

Specifically, two stopping bars 6221 are arranged on the reel changing chain 622, the stopping bars 6221 divide the reel changing chain 622 into two sections of equal length, each section is just used for clamping the rattan woven plastic strip 10, the cutting unit 624 comprises a blade 6241 and a swinging piece 6242 hinged on the winding frame 5, and a connecting rod 6243 connecting the blade 6241 and the swinging piece 6242, when the stopping bars 6221 move to the upper part of the winding frame 5, the stopping bars 6221 can abut against the swinging piece 6242 to push the blade 6241 to rotate, and the blade 6241 cuts the rattan woven plastic strip 10.

As shown in fig. 13 to 16, the binding assembly 63 further includes a wire output unit 631 and a wire binding unit 632, the wire output unit 631 is in transmission connection with the winding frame 5 to output the wire 20, and the wire binding unit 632 receives the fed wire 20 and binds the fed wire 20 to the rattan-plaited plastic strip 10 completed by the reel changing assembly 62.

As shown in fig. 19 to 21, further, the iron wire output unit 631 includes:

a base 6311;

an iron wire storage barrel 6312, wherein the iron wire storage barrel 6312 is disposed above the base 6311 and freely rotates relative to the base 6311;

the bottom of the driving shaft 6313 is connected to the reel changing assembly 62 through a belt in a transmission manner, and the middle of the driving shaft 6313 is provided with a gear 6314 to drive the iron wire storage barrel 6312 to rotate;

the wire outlet driving wheel 6315 is arranged at the top end of the driving shaft 6313, and the wire outlet driving wheel 6315 drives the wire 20 in the wire storage barrel 6312 to output outwards; and

and a guide plate 6316, which is provided at an output end of the wire output driving wheel 6315, and which guides the running direction of the iron wire 20.

Further, the iron wire tying unit 632 includes:

a first bending plate 6321, wherein the first bending plate 6321 is hinged to the bottom of the inner cavity of the water storage barrel 61, and the hinged position of the first bending plate is located at the rotating outer edge of the reel changing assembly 62;

the second bending plate 6322 is hinged to the bottom of the inner cavity of the water storage barrel 61, and is arranged corresponding to the first bending plate 6321, and the first bending plate 6321 and the second bending plate 6322 accommodate the iron wire 20 conveyed by the iron wire output unit 631;

the push plate 6323 is arranged on the outer side of the first bent plate 6321, the upper end of the push plate 6323 is elastically connected with the first bent plate 6321, and the lower end of the push plate 6323 is hinged to the bottom of the inner cavity of the water storage barrel 61 together with the first bent plate 6321;

the folding driving group 6324 is arranged at the bottom of the inner cavity of the water storage barrel 61, and drives the push plate 6323 and the second bending plate 6322 to synchronously rotate, fold or open; and

and a bundling and winding group 6325 provided at an end of the second bending plate 6322, for winding both ends of the wire 20 wound by folding the first bending plate 6321 and the second bending plate 6322.

It should be noted that, the iron wire storage barrel 6312 stores the rolled iron wire 20, the start end of the iron wire 20 is clamped by the wire-out driving wheel 6315, the driving shaft 6313 is in transmission connection with the winding frame 5, and the rotation of the driving shaft 6313 is matched with the number of turns of the wound rattan-plaited plastic strip 10 of the winding frame 5 through the setting of the transmission ratio, specifically, the rattan-plaited plastic strip 10 with the winding frame 5 wound for a fixed number of turns is set, the driving shaft 6313 drives the wire-out driving wheel 6315 to rotate, so that the length output by the iron wire 20 is just consistent with the total length of the first bending plate 6321 and the second bending plate 6322, and at this time, the iron wire 20 waits for being used for bundling the rattan-plaited plastic strip 10 at the iron wire bundling unit 632.

It should be noted that the second bending plate 6322 is provided at the top end thereof with a cutting knife 63221, and when the second bending plate 6322 rotates, the cutting knife 63221 cooperates with the guide plate 6316 to cut the iron wire 20.

It should be further noted that the folding driving set 6324 adopts a gear set which is meshed with each other to move synchronously, and only one of the gears needs to be powered to move, so that the folding or opening of the folding driving set 6324 can be realized, which belongs to the conventional technical means and is not described herein again.

Furthermore, the winding frame 5 is operated with a number of turns set such that in the stop position the wire tying unit 632 does a tying movement without interfering with the winding frame 5, i.e. the wire tying unit 632 moves freely in the gap of the winding frame 5.

Further, the top of the push plate 6323 is provided with a rack 63231, and the strapping winding group 6325 includes:

a driving gear 63251, wherein the driving gear 63251 is in transmission with the rack 63231; and

and the winding piece 63252, the winding piece 63252 is integrally connected to the rotating shaft of the driving gear 63251, two symmetrical notches 63253 are formed on the circumference of the winding piece 63252, and the notches 63253 catch the two ends of the iron wire 20 and wind the two ends together when the winding piece 63252 rotates.

Further, a groove 63211 for avoiding the winding piece 63252 is provided at the upper end of the first bending plate 6321 and the second bending plate 6322, and an inclined pad height platform 63212 is provided below the groove 63211, and the inclined pad height platform 63212 abuts against and lifts up the two ends of the iron wire 20.

As shown in fig. 3 and 6, further, a propelling member 346 is disposed in the outer tube unit 34, the outer tube unit 34 guides the cooling water to the outer side wall of the rattan-woven plastic strip 10, and the propelling member 346 is driven by the cooling water to rotate and propels forward against the outer side of the rattan-woven plastic strip 10.

As shown in fig. 7 and 8, further, the pushing member 346 includes:

a first impeller 3461, the first impeller 3461 being freely rotatably disposed; and

a driving wheel 3462, the driving wheel 3462 is integrally connected to the first impeller 3461, and the circumferential side of the driving wheel 3462 is provided with a concave curved surface 34621 adapted to the outer side wall of the rattan-woven plastic strip 10.

Further, still include: a first water pump 71 connecting the cooling water tank 41 with the first and second

water filling ports

331 and 341, and a second water pump 72 connecting the cooling water tank 41 with the water storage tub 51, the first and second water pumps 71 and 72 driving circulation of cooling water.

The cooling water tank 41 is provided with a water storage chamber a413 and a water storage chamber B414 corresponding to the water outlet end of the outer pipe unit 34, the water storage chamber a413 receives the cooling water flowing out of the outer pipe unit 34 and is communicated to the lower layer through groove 411, and the water storage chamber B414 receives the cooling water flowing out of the upper layer through groove 412 and is communicated to the first water pump 71.

Example two

As shown in fig. 1 and 22, a method for extrusion molding production of rattan woven plastic comprises the following steps:

step one, a melt extrusion process, namely heating and melting the plastic master batch by a melt extruder 2, extruding the plastic master batch from a die head body 31, and outputting the raw material which forms an annular tubular rattan-woven plastic strip 10 outwards when passing through an extrusion ring 32;

step two, a cooling and shaping process, wherein a cooling water tank 41 carries out water cooling work on the outer wall of the rattan woven plastic strip 10 which is conveyed forwards, meanwhile, another path of cooling water enters the inner pipe 33 from a first water injection port 331 and rushes towards the inner wall of the rattan woven plastic strip 10, and the path of cooling water cools the inner wall of the rattan woven plastic strip 10 and provides outward supporting force for the rattan woven plastic strip 10 to enable the rattan woven plastic strip 10 to be shaped;

step three, a winding process, in which the winding frame 5 is driven by the transmission unit 43 to rotate so as to wind the rattan-woven plastic strip 10;

step four, a reel changing procedure, in step three, a reel changing chain 622 in the reel changing assembly 62 arranged on the winding frame 5 supports and gradually descends against the rattan woven plastic strip 10 being wound, until the rattan woven plastic strip 10 is wound for a set number of turns, the cutting unit 624 cuts off the rattan woven plastic strip 10, and the rattan woven plastic strip 10 after being wound falls downwards;

and step five, a bundling procedure, namely after the step four, bundling the fallen rattan woven plastic strip 10 by the bundling assembly 63 and outputting.

The working process is as follows:

the die head body 31 is provided with a plurality of extruding channels 311, the extruding channels 311 are arranged corresponding to the melting extruder 2 one by one, the plurality of extruding channels 311 converge the melted raw materials to the extruding ring 32 to form the rattan woven plastic strip 10, the inner tube 33 passes through the extruding ring 32 from the center of the die head body 31, so that cooling water is introduced into the rattan woven plastic strip 10 to advance together with the rattan woven plastic strip 10, meanwhile, the outer tube unit 34 is also filled with the cooling water to cool the outer wall of the rattan woven plastic strip 10, the cooling water introduced into the inner tube 33 and the outer tube unit 34 simultaneously forms pressure maintaining and shaping on the rattan woven plastic strip 10, then, the cooling device 4 cools the rattan woven plastic strip 10 again, the impeller unit 42 is matched with the transmission unit 43 to drive the winding frame 5 to synchronously, the iron wire output unit 631 is synchronously driven to output the iron wire 20 in the winding process of the winding frame 5, after the rattan woven plastic strip 10 is wound for a certain number of turns, the reel changing chain 622 drives the cutting unit 624 to cut the rattan-woven plastic strip 10, and finally the iron wire 20 is bound on the rattan-woven plastic strip 10 by the iron wire binding unit 632 to complete binding and packaging.

In the description of the present invention, it is to be understood that the terms "front-back", "left-right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the invention.

Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a number of an element may be one, and in another embodiment, a number of the element may be plural, and the terms "a" and "an" should not be interpreted as limiting the number.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art in light of the technical teaching of the present invention should be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An extrusion molding production line for rattan plastics, comprising: a workbench (1) and at least one group of melt extruders (2) arranged on the workbench (1), characterized in that, also comprising:

a die assembly (3), which collects the raw material of the melt extruder (2) and extrudes the rattan plastic strip (10);

A cooling device (4), the cooling device (4) is arranged at the discharge end of the die assembly (3), which comprises cooling the rattan plastic strip (10) and allowing the rattan plastic strip (10) to pass through The cooling water tank (41), the impeller unit (42) arranged on the path of the cooling water tank (41), and the transmission unit (43) drivingly connected with the impeller unit (42);

A rewinding stand (5), the reeling stand (5) is arranged at the rear end of the cooling water tank (41), and the transmission unit (43) drives the reeling stand (5) to rotate to the rattan plastic the strip (10) is wound; and

A roll-changing and binding device (6), the roll-changing and binding device (6) is arranged below the reeling rack (5), and includes a water storage bucket (61), a roll-changing assembly (62), and a binding assembly (63) and a bracket (64), the reel changing assembly (62) is arranged in the reeling frame (5) and is connected with the reeling frame (5) in a driving manner, and the reel changing assembly (62) receives the winding The rattan plastic strip (10) of the roll is moved downward, and the strapping assembly (63) is arranged directly below the roll changing assembly (62), which is arranged to replace the roll changing assembly (62). The rattan plastic strips (10) are bundled, the brackets (64) are fixedly arranged on the water storage bucket (61), and the winding racks (5) are freely rotatable relative to the brackets (64) and are arranged on the brackets (64). )superior;

The roll changing assembly (62) includes:

bevel teeth a (621), the bevel teeth a (621) are arranged on the bracket (64);

A rewinding chain (622), wherein multiple groups of the reeling chain (622) are arranged in an array on the reeling frame (5) along the rotation circumference of the reeling frame (5), and the reeling chain (622) is arranged in an array For supporting the rattan plastic strip (10) wound by the reeling frame (5) and gradually descending for transportation;

A transmission shaft (623), the transmission shaft (623) is arranged on the rewinding frame (5), the transmission shaft (623) engages the bevel teeth a (621) through gears and transmits power to the rewinding chain (622); and

a cutting unit (624), the cutting unit (624) is in driving cooperation with the rewinding chain (622), and the cutting unit (624) is configured to cut the rattan plastic strip (10);

The bundling assembly (63) includes an iron wire output unit (631) and an iron wire bundling unit (632), the wire output unit (631) is drivingly connected with the reeling frame (5) to output the iron wire (20), and the iron wire The bundling unit (632) receives the delivered iron wire (20) and bundles it on the rattan plastic strip (10) that has been reeled by the reel changing assembly (62).

2. A rattan plastic extrusion molding production line according to claim 1, wherein the die assembly (3) comprises a die body (31), which is arranged in the die body (31) Correspondingly connected to an extrusion ring (32) of the melt extruder (2), an inner tube (33) arranged in the extrusion ring (32), and an outer tube (33) sleeved outside the inner tube (33) A pipe unit (34), the inner pipe (33) penetrates a first water injection port (331) on the side wall of the die body (31), and the side wall of the outer pipe unit (34) is provided with a second water injection port (341), the free end of the inner tube (33) is coaxially disposed with the die body (31) and protrudes from the die body (31);

The outer side wall of the inner tube (33) is adapted to the inner diameter of the extrusion ring (32), and the inner wall of the inner tube (33) is set as a horn along the discharge direction of the extrusion ring (32). The inner pipe (33) guides cooling water to the inside of the rattan plastic strip (10) extruded by the extrusion ring (32).

3. A rattan plastic extrusion molding production line according to claim 2, wherein the outer pipe unit (34) comprises a water inlet (342) connected to the die body (31) and a A cooling portion (343) integrally formed with the water inlet portion (342), the water inlet portion (342) is wrapped around the free end portion of the inner pipe (33), and the water inlet portion (342) is provided with an embedded A sleeve (344), the inner diameter of the nested tube (344) is larger than the outer diameter of the inner tube (33), the outer side wall of the nested tube (344) and the inner wall of the water inlet (342) A water inlet cavity (345) is formed therebetween.

4. A rattan plastic extrusion molding production line according to claim 2, wherein the cooling water tank (41) comprises a lower through groove (411) and an upper through groove (412), and the lower through groove (412) (411) receives the cooling water sent by the outer pipe unit (34), the tail end of the upper through groove (412) communicates with the tail of the lower through groove (411), and the upper through groove (412) The cooling water in the lower through groove (411) is returned, and the upper through groove (412) accommodates the rattan plastic strip (10) to pass through;

The impeller unit (42) includes a rotating shaft (421), a second impeller A (422) and a second impeller B (423) integrally connected to the rotating shaft (421), and the second impeller A (422) is arranged on the In the lower through groove (411), the second impeller B (423) is arranged in the upper through groove (412);

The transmission unit (43) comprises: a sprocket set (431), one end of the sprocket set (431) is drivingly connected with the rotating shaft (421); and a conical wheel set (432), the conical wheel The group (432) is drivingly connected to the other end of the sprocket group (431) and the winding frame (5).

5. The extrusion molding production line for rattan plastic according to claim 1, wherein the wire output unit (631) comprises:

base(6311);

an iron wire storage bucket (6312), the iron wire storage bucket (6312) is arranged above the base (6311), and is freely rotatable relative to the base (6311);

A drive shaft (6313), the bottom of the drive shaft (6313) is connected to the roll change assembly (62) through a belt drive, and a gear (6314) is set in the middle of the drive shaft (6313) to drive the wire storage bucket (6312) rotate;

A wire output driving wheel (6315), the wire output driving wheel (6315) is arranged at the top of the driving shaft (6313), and the wire output driving wheel (6315) drives the wire (6312) in the wire storage bucket (6312). 20) Outgoing output; and

A guide plate (6316), the guide plate (6316) is arranged at the output end of the wire output driving wheel (6315), and guides the direction of the iron wire (20).

6. The extrusion molding production line for rattan plastic according to claim 5, wherein the wire bundling unit (632) comprises:

a first curved plate (6321), the first curved plate (6321) is hingedly arranged at the bottom of the inner cavity of the water storage bucket (61), and its hinged position is at the rotating outer edge of the roll changing assembly (62);

A second curved plate (6322), the second curved plate (6322) is hingedly arranged at the bottom of the inner cavity of the water storage bucket (61), and is arranged corresponding to the first curved plate (6321), the first curved plate (6322) The bent plate (6321) and the second bent plate (6322) accommodate the iron wire (20) delivered by the iron wire output unit (631);

A push plate (6323), the push plate (6323) is arranged on the outer side of the first curved plate (6321), the upper end of the push plate (6323) is elastically connected with the first curved plate (6321), the The lower end of the push plate (6323) is hinged to the bottom of the inner cavity of the water storage bucket (61) together with the first curved plate (6321);

A closing drive group (6324), the closing drive group (6324) is arranged at the bottom of the inner cavity of the water storage bucket (61), and drives the push plate (6323) and the second bending plate (6322) to synchronize rotate to collapse or open; and

A bundling coil group (6325), the bundling coil group (6325) is arranged at the end of the second curved plate (6322), and closes the first curved plate (6321) and the second curved plate (6322) Both ends of the iron wire (20) brought up are wound.

7. A rattan plastic extrusion molding production line according to claim 6, wherein a rack (63231) is provided on the top of the push plate (6323), and the bundling winding group (6325) comprises:

a driving gear (63251), the driving gear (63251) can cooperate with the rack (63231) for transmission; and

A winding member (63252), the winding member (63252) is integrally connected to the rotating shaft of the drive gear (63251), and two symmetrical notches (63253) are formed on the circumference of the winding member (63252) , when the winding member (63252) rotates, the notch (63253) hooks the two ends of the iron wire (20) and winds them together.

8. the extrusion molding production method of a kind of rattan plastic based on the extrusion molding production line of the arbitrary described a kind of rattan plastic of claim 1 to 7, is characterized in that, comprises the following steps:

Step 1, the melt extrusion process, the plastic master batch is heated and melted by the melt extruder (2), and extruded from the die head body (31), and the raw material forms an annular tubular rattan plastic when passing through the extrusion ring (32). The strip (10) is outputted outwards;

Step 2, the cooling and shaping process, the cooling water tank (41) performs water-cooling work on the outer wall of the rattan plastic strip (10) being conveyed forward, and at the same time, another cooling water enters the inner pipe (33) from the first water injection port (331). Inside and rush to the inner wall of the rattan plastic strip (10), the cooling water in this way cools the inner wall of the rattan plastic strip (10) and provides an outward support force for the rattan plastic strip (10) to make it shape, and the inner pipe conveys cooling water It is cooled to the inside of the rattan plastic strip, and at the same time, the outer pipe unit (34) also delivers cooling water for cooling the rattan plastic strip, so that the inside and outside of the rattan plastic strip is cooled at the same time. pipeline shape;

Step 3, the winding process, the winding frame (5) is driven and rotated by the transmission unit (43) to perform the winding work on the rattan plastic strip (10);

In step 4, the coil changing process, in step 3, the coil changing chain (622) in the coil changing assembly (62) is set on the reeling frame (5) to support and gradually descend the rattan plastic strip (10) being wound, After the rattan plastic strip (10) is wound for the set number of turns, the cutting unit (624) cuts off the rattan plastic strip (10), and the rolled rattan plastic strip (10) falls down;

The fifth step is the binding process. After the fourth step, the binding assembly (63) binds and outputs the rolled rattan plastic strip (10).