CN115401723A

CN115401723A - Polymer sealing strip forming processing method based on cutting device

Info

Publication number: CN115401723A
Application number: CN202210973223.0A
Authority: CN
Inventors: 史红惠子
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-11-29

Abstract

The invention discloses a polymer sealing strip forming processing method based on a cutting device, which comprises the following processing steps: s1, forming raw materials; s2, traction conveying; s3, cooling and solidifying; s4, cutting off; s5, collecting and packaging; cutting device that uses in above-mentioned step S4 is including processing case, blowing roller, clamp roll, cutting mechanism and drawing and getting the mechanism, and wherein blowing roller all rotates with clamp roll and sets up in the processing case, the clamp roll has two, cut the mechanism including cutting the box, cut the lateral wall of box and seted up the through-hole, just sliding connection has the cutting off cutter in the box. The distance between the clamping roller and the pulling mechanism is always consistent, so that the tensioning degree of the sealing strips between the clamping roller and the pulling mechanism can be always consistent, the cutting mechanism can be ensured to smoothly cut the sealing strips, the quality of the same batch of sealing strips after cutting is uniform, and the cut cannot be broken due to the fact that the sealing strips are too tight.

Description

Polymer sealing strip forming processing method based on cutting device

Technical Field

The invention relates to the technical field of high-molecular sealing strips, in particular to a high-molecular sealing strip forming processing method based on a cutting device.

Background

The polymer sealing strip is generally a sealing strip made of polymer materials such as polyethylene, and the processing flow of the polymer sealing strip is generally divided into four steps of extrusion molding, traction, cooling solidification and cutting. In the sealing strip cutting step, whether the cut is flat and smooth is particularly critical to final forming of the sealing strip.

In the process of forming and processing the polymer sealing strip, special cutting equipment is generally adopted for cutting the sealing strip when the sealing strip is cut off. The patent application number is '201921904105.4', which discloses a cutting device for producing and processing sealing strips, wherein the sealing strips put down on a rotating roller are clamped in a limiting groove of a transfer roller, and then can be clamped and transferred through the arrangement of an upper roller and a lower roller, and then are subjected to cutting treatment. The cutting processing method has the following defects: when more sealing strips are wound on the rotating roller in the early stage, the integral radius formed by the rotating roller and the sealing strips is larger, the sealing strip discharging point on the rotating roller is closer to the upper and lower rotary drums, and the tightness of the sealing strips between the rotating roller and the upper and lower rotary drums is smaller; and as the sealing strip on the rotating roller is continuously released, the integral radius formed by the rotating roller and the sealing strip is gradually reduced, at the moment, the releasing point of the sealing strip on the rotating roller is far away from the upper roller and the lower roller, and the tightness of the sealing strip between the rotating roller and the upper roller and the lower roller is large. Therefore, in the cutting process of the same batch of sealing strips, the tightness states of the sealing strips during cutting are different, so that the quality after cutting is different, and particularly, when the sealing strips are cut in a later stretching and tightening state, the notches are easy to break in the cutting process, so that a large amount of burrs are formed in the notches, and the use and the attractive effect of the sealing strips are affected.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a method for forming a high-molecular sealing strip based on a cutting device.

In order to achieve the purpose, the invention adopts the following technical scheme:

a polymer sealing strip forming processing method based on a cutting device comprises the following processing steps:

s1, forming raw materials, namely feeding the raw materials of the high-molecular sealing strip into a screw extruder, heating the raw materials to a molten state, and then extruding and forming;

s2, carrying out traction conveying, namely conveying the extruded high-molecular sealing strip outwards through a traction machine;

s3, cooling and solidifying, namely conveying the high-molecular sealing strip to a cooling roller through a tractor for sufficient cooling and solidification;

s4, cutting off, namely conveying the cooled and solidified polymer sealing strip to a cutting device for cutting;

s5, collecting and packaging, and packaging and warehousing the cut high-molecular sealing strips according to corresponding specifications;

cutting device that uses in above-mentioned step S4 is including processing case, blowing roller, clamp roller, cutting mechanism and drawing mechanism, and wherein blowing roller all rotates with clamp roller and sets up in the processing incasement, the clamp roller has two, cut the mechanism including cutting the box, the through-hole has been seted up to the lateral wall that cuts the box, just sliding connection has the cutting off tool in cutting the box, install the moving mechanism who makes the cutting off tool remove in cutting the box, draw mechanism including splint, just splint slide to set up on processing incasement wall, fixedly connected with inclined guide strip on the lateral wall of splint, processing incasement wall is last to have seted up inclined guide way, inclined guide strip slides to set up in inclined guide way, processing incasement is installed the pushing mechanism who promotes splint and remove.

Preferably, moving mechanism sets up the magnetic plate in cutting the box including sliding, just the upper end fixedly connected with first spring of magnetic plate, the upper end fixed connection of first spring cuts the box internal top, the lower extreme and the cutting off cutter fixed connection of magnetic plate, it is equipped with the solenoid to inlay on the box inner wall of cutting.

Preferably, pushing mechanism includes the backup pad of fixed connection on processing incasement wall, just backup pad upper end fixedly connected with flexible gasbag, flexible gasbag upper end fixedly connected with slider, the spout has been seted up to the lateral wall of splint, the slider slides and sets up in the spout, the gas injection groove has been seted up to the lateral wall of processing case, the gas supply subassembly to the air feed of flexible gasbag is installed to the gas injection inslot.

Preferably, the air feed subassembly includes sealed sliding connection at the inslot piston of aerifing, just the transmission groove has been seted up to the lateral wall of processing case, sliding connection has the rack in the transmission groove, the rack passes through connecting rod and piston fixed connection, the rack passes through second spring coupling on the transmission inslot wall, the transmission inslot internal rotation be connected with rack complex incomplete gear, the groove of aerifing communicates with each other with flexible gasbag through the air duct.

Preferably, a gear matched with the incomplete gear is further rotatably connected in the transmission groove, and the gear is fixedly connected with one of the clamping rollers through a rotating shaft.

Preferably, one end of the second spring is fixedly connected to the side wall of the rack, and the other end of the second spring is fixedly connected with the inner wall of the transmission groove.

The invention has the following beneficial effects:

1. by arranging the clamping roller and the pulling mechanism, the distance between the clamping roller and the pulling mechanism is always kept consistent, so that the tensioning degree of the sealing strips between the clamping roller and the pulling mechanism can be always kept consistent, the cutting mechanism can be ensured to smoothly and smoothly cut the sealing strips, the quality of the same batch of the sealing strips after cutting can be kept uniform, and the cut can not be broken due to the fact that the sealing strips are too tight;

2. by arranging the inclined guide grooves and the inclined guide strips, the clamping plates can move rightwards for a certain distance when the clamping plates move oppositely to clamp the sealing strips, so that the sealing strips can be stretched after being clamped, and the cutting mechanism can ensure that the cuts of the sealing strips are smooth;

3. by arranging the incomplete gear, the rack and other parts, the sealing strip can be conveyed and cut alternately through the alternate meshing of the incomplete gear, the gear and the rack, so that the sealing strip can be cut automatically.

Drawings

FIG. 1 is a schematic view of a cutting apparatus according to the present invention;

FIG. 2 is a schematic view of the rear side of the cutting device of the present invention in partial cross-section;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

fig. 4 is an enlarged schematic view of the structure at B in fig. 1.

In the figure: the device comprises a processing box 1, a discharging roller 2, a clamping roller 3, a cutting box 4, a sealing strip 5, a supporting plate 6, a clamping plate 7, an expansion air bag 8, an air guide pipe 9, a transmission groove 10, an incomplete gear 11, a gear 12, a rack 13, a second spring 14, an air injection groove 15, a piston 16, a through hole 17, a magnetic plate 18, a first spring 19, a solenoid 20, a cutting knife 21, a sliding groove 22, a sliding block 23, a slant guide groove 24 and a slant guide strip 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a polymer sealing strip forming processing method based on a cutting device comprises the following processing steps:

cutting device that uses in above-mentioned step S4 is including processing case 1, blowing roller 2, the clamp roller 3, cut the mechanism and draw and get the mechanism, wherein blowing roller 2 all rotates with clamp roller 3 and sets up in processing case 1, clamp roller 3 has two, it includes cutting box 4 to cut the mechanism, through-hole 17 has been seted up to the lateral wall that cuts box 4, and cut box 4 sliding connection has cutting off cutter 21, cut and install the moving mechanism who makes cutting off cutter 21 remove in the box 4, draw and get the mechanism and include splint 7, and splint 7 slides and sets up on processing case 1 inner wall, fixedly connected with inclined gib block 25 on splint 7' S the lateral wall, inclined gib block 24 has been seted up on processing case 1 inner wall, inclined gib block 25 slides and sets up in inclined gib block 24, install the pushing mechanism who promotes splint 7 and remove in the processing case 1. Specifically, referring to fig. 4, the inclined guide grooves 24 are formed on the front and rear inner walls of the processing box 1, and correspondingly, the inclined guide bars 25 are formed on the front and rear side walls of the clamping plate 7, so that the clamping plate 7 can only move along the inclined guide grooves 24 in an inclined right direction.

As shown in fig. 1, when the present apparatus is used, the weatherstrip 5 on the feed roll 2 is drawn out in advance and then passed through the two nip rolls 3 and the through-hole 17. As the upper and lower clamping plates 7 move toward each other along the inclined guide grooves 24, the right end of the sealing strip 5 is clamped and moved to the right by a certain distance, so that the sealing strip 5 between the clamping rollers 3 and the clamping plates 7 is stretched to be straight.

Further, the distance between the discharging roller 2 and the clamping roller 3 can be set to be short, so that even if the sealing strips 5 on the discharging roller 2 are gradually reduced, the sealing strips 5 between the discharging roller 2 and the clamping roller 3 are always in a loose state, and the sealing strips 5 cannot be excessively stretched.

Referring to fig. 3, the moving mechanism includes a magnetic plate 18 slidably disposed in the cutting box 4, a first spring 19 is fixedly connected to an upper end of the magnetic plate 18, the upper end of the first spring 19 is fixedly connected to a top portion of the cutting box 4, a lower end of the magnetic plate 18 is fixedly connected to a cutting knife 21, and a solenoid 20 is embedded in an inner wall of the cutting box 4. It should be noted that the solenoid 20 will generate a magnetic field with the same direction as the magnetic pole of the magnetic plate 18 when it is energized, so that the solenoid 20 can repel the magnetic plate 18 and push it to move downward when it is energized.

Referring to fig. 4, pushing mechanism includes backup pad 6 of fixed connection on the 1 inner wall of processing case, and backup pad 6 upper end fixedly connected with flexible gasbag 8, and the spout 22 has been seted up to flexible gasbag 8 upper end fixedly connected with slider 23, splint 7's lateral wall, and slider 23 slides and sets up in spout 22, and gas injection groove 15 has been seted up to processing case 1's lateral wall, installs the air feed subassembly to flexible gasbag 8 air feed in gas injection groove 15. It should be noted that, by providing the sliding groove 22 and the sliding block 23, when the telescopic airbag 8 stretches and retracts to push the clamping plate 7 to move up and down, the sliding block 23 slides correspondingly in the sliding groove 22 to cooperate with the oblique movement of the clamping plate 7.

In addition, a horizontal guide groove can be arranged on the inner wall of the sliding groove 22, and a horizontal guide block is arranged on the side wall of the sliding block 23, so that the guide block is limited to slide in the guide groove, and the structure of the inclined guide strip 25 of the inclined guide groove 24 level is similar to the structure, so that the sliding block 23 can not be separated from the sliding groove 22.

Referring to fig. 2, the gas supply assembly includes a piston 16 connected in the gas injection groove 15 in a sealing and sliding manner, a transmission groove 10 is opened on the side wall of the processing box 1, a rack 13 is connected in the transmission groove 10 in a sliding manner, the rack 13 is fixedly connected with the piston 16 through a connecting rod, the rack 13 is connected on the inner wall of the transmission groove 10 through a second spring 14, one end of the second spring 14 is fixedly connected on the side wall of the rack 13, and the other end of the second spring 14 is fixedly connected with the inner wall of the transmission groove 10. An incomplete gear 11 matched with a rack 13 is rotationally connected in the transmission groove 10, and the gas injection groove 15 is communicated with the telescopic air bag 8 through a gas guide tube 9. The transmission groove 10 is also rotatably connected with a gear 12 matched with the incomplete gear 11, and the gear 12 is fixedly connected with one of the clamping rollers 3 through a rotating shaft. It should be noted that the clamping roller 3 can be rotatably disposed in the processing box 1 through the damping rotating shaft, the rotating resistance of the clamping roller 3 is large, and the sealing strip 5 made of a polymer material has a good elastic stretching effect, as shown in fig. 1, when the pulling mechanism grabs the right end of the sealing strip 5 and moves a small distance to the right side, only the sealing strip 5 is stretched to a stretched state, and the clamping roller 3 cannot be driven to rotate.

Furthermore, the upper clamping roller 3 and the lower clamping roller 3 are in extrusion contact with the sealing strip 5 between the upper clamping roller and the lower clamping roller, on one hand, when the upper clamping roller 3 is driven by the gear 12 to rotate, the sealing strip 5 can be conveyed towards the right side, and simultaneously, under the action of the friction force between the lower clamping roller 3 and the sealing strip 5, the lower clamping roller 3 can also rotate to be matched with the sealing strip 5 for conveying; on the other hand, in the process of extruding the sealing strip 5 by the two clamping rollers 3, the stress of the sealing strip 5 wound on the discharging roller 2 for a long time can be released, the mechanical property of the sealing strip is improved, and meanwhile, the sealing strip 5 wound and bent for a long time can be extruded to be in a straight state by the clamping rollers 3.

Further, the incomplete gear 11 of the different number of teeth of accessible change makes gear 12 rotate different numbers of turns, and then the number of turns of rotation of adjustable double-layered roller 3 to adjustment sealing strip 5 output length, the final length of cutting of adjustment sealing strip 5 can carry out corresponding change with the incomplete gear 11 of the different number of teeth of matching to rack 13 simultaneously.

In the present invention, a driving device such as a motor may be installed on the processing box 1, and the incomplete gear 11 may be driven to rotate by the motor. When the gear 11 is not completely rotated, the gear 12 and the rack 13 can be intermittently meshed. When the incomplete gear 11 is engaged with the gear 12, the gear 12 can be driven to rotate, the gear 12 drives the upper clamping roller 3 to rotate through the rotating shaft, the sealing strips 5 on the discharging roller 2 can be output forwards when the upper clamping roller 3 rotates, and meanwhile, the lower clamping roller 3 also rotates along with the rotating shaft to be matched.

When the sealing tape 5 is fed forward for a certain distance, the incomplete gear 11 is immediately disengaged from the gear 12, at which time the gear 12 stops rotating, and the upper nip roller 3 also stops rotating immediately and no longer feeds the sealing tape 5 forward. Then the incomplete gear 11 rotates to be meshed with the rack 13, so that the rack 13 can be pushed to move towards the right side, the rack 13 pushes the piston 16 to move towards the right through the connecting rod, so that air in the air injection groove 15 can be input into the telescopic air bag 8 through the air guide pipe 9, the telescopic air bag 8 is forced to extend, the two clamping plates 7 are pushed to move towards each other after the two telescopic air bags 8 extend, and the sealing strip 5 can be finally clamped after the two clamping plates 7 move.

And the two clamping plates 7 move along the inclined guide groove 24 to the right under the limiting action of the inclined guide strip 25 and the inclined guide groove 24. Therefore, after the sealing strip 5 is clamped by the two clamping plates 7, the sealing strip 5 can continuously move in the opposite direction for a certain distance (the elastic stretching effect of the sealing strip 5 made of high polymer material is good, the clamping plates 7 can continuously move and stretch the sealing strip 5 after clamping the sealing strip 5, and the sealing strip 5 is clamped more tightly), meanwhile, the two clamping plates 7 also move to the right side for a small distance along the inclined guide groove 24, so that the sealing strip 5 between the clamping roller 3 and the clamping plates 7 can be pulled to be in a stretched straight state, at the moment, the solenoid 20 is electrified immediately and generates magnetic force, and repels the magnetic force plate 18, so that the magnetic force plate 18 and the cutting knife 21 can be pushed to move downwards, and the stretched sealing strip 5 can be cut. When the solenoid 20 is then de-energized and the magnetic force disappears, the first spring 19 will pull the magnetic plate 18 and the cutting blade 21 to move upward and return. And the incomplete gear 11 continues to rotate to be separated from the rack 13, the second spring 14 can also pull the rack 13 and the piston 16 to move leftwards for resetting, and when the piston 16 moves leftwards, air in the telescopic air bag 8 is also pumped into the air injection groove 15 along the air guide pipe 9, so that the telescopic air bag 8 contracts and pulls the two splints 7 to move backwards for resetting. When the incomplete gear 11 continues to rotate to be engaged with the gear 12, the above-mentioned actions can be repeated again.

In conclusion, for the cutting device provided by the invention, the distance between the clamping roller 3 and the pulling mechanism is always kept consistent, so that the tensioning degree of the sealing strips 5 between the clamping roller 3 and the pulling mechanism can be always kept consistent, the cutting mechanism can be ensured to smoothly and smoothly cut the sealing strips 5, the quality of the same batch of sealing strips 5 after cutting can be kept uniform, and the cut cannot be broken due to the fact that the sealing strips are too tight; the sealing strip 5 can be conveyed and cut alternately by the alternate engagement of the incomplete gear 11, the gear 12 and the rack 13, and the sealing strip 5 can be cut automatically.

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 person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A polymer sealing strip forming processing method based on a cutting device is characterized by comprising the following processing steps:

cutting device that uses in above-mentioned step S4 is including processing case (1), blowing roller (2), double-layered roller (3), cut the mechanism and draw and get the mechanism, wherein blowing roller (2) all rotate with double-layered roller (3) and set up in processing case (1), double-layered roller (3) have two, cut the mechanism including cutting box (4), cut the lateral wall of box (4) and seted up through-hole (17), just cut box (4) sliding connection have cutting off tool (21), cut and install the moving mechanism who makes cutting off tool (21) remove in box (4), draw and get the mechanism and include splint (7), just splint (7) slide and set up on processing case (1) inner wall, fixedly connected with puts to one side guide strip (25) on the lateral wall of splint (7), processing case (1) has seted up on the inner wall and put guide way (24) to one side, put guide strip (25) slide and set up in putting guide way (24) to one side, install the pushing mechanism that promotes splint (7) and remove in processing case (1).

2. The method for forming and processing the high polymer sealing strip based on the cutting device is characterized in that the moving mechanism comprises a magnetic plate (18) which is arranged in the cutting box (4) in a sliding mode, a first spring (19) is fixedly connected to the upper end of the magnetic plate (18), the upper end of the first spring (19) is fixedly connected to the inner top of the cutting box (4), the lower end of the magnetic plate (18) is fixedly connected with a cutting knife (21), and a solenoid (20) is embedded in the inner wall of the cutting box (4).

3. The polymer sealing strip forming processing method based on the cutting device is characterized in that the pushing mechanism comprises a supporting plate (6) fixedly connected to the inner wall of the processing box (1), a telescopic air bag (8) is fixedly connected to the upper end of the supporting plate (6), a sliding block (23) is fixedly connected to the upper end of the telescopic air bag (8), a sliding groove (22) is formed in the side wall of the clamping plate (7), the sliding block (23) is slidably arranged in the sliding groove (22), an air injection groove (15) is formed in the side wall of the processing box (1), and an air supply assembly for supplying air to the telescopic air bag (8) is installed in the air injection groove (15).

4. The polymer sealing strip forming processing method based on the cutting device is characterized in that the gas supply assembly comprises a piston (16) which is connected in a gas injection groove (15) in a sealing and sliding mode, a transmission groove (10) is formed in the side wall of the processing box (1), a rack (13) is connected in the transmission groove (10) in a sliding mode, the rack (13) is fixedly connected with the piston (16) through a connecting rod, the rack (13) is connected to the inner wall of the transmission groove (10) through a second spring (14), an incomplete gear (11) matched with the rack (13) is connected in the transmission groove (10) in a rotating mode, and the gas injection groove (15) is communicated with a telescopic air bag (8) through a gas guide tube (9).

5. The method for forming and processing the high polymer sealing strip based on the cutting device according to claim 4, wherein a gear (12) matched with the incomplete gear (11) is further rotatably connected in the transmission groove (10), and the gear (12) is fixedly connected with one of the clamping rollers (3) through a rotating shaft.

6. The method for forming and processing the high polymer sealing strip based on the cutting device according to claim 4, wherein one end of the second spring (14) is fixedly connected to the side wall of the rack (13), and the other end of the second spring (14) is fixedly connected with the inner wall of the transmission groove (10).