CN118269320A - Intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip tray production line and production process - Google Patents

Abstract

The application discloses an intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip tray production line and a production process, wherein the production line comprises the following steps: the material is extruded by two extruders after being fed and compounded in a die, and then the calendaring and shaping plate is conveyed to the compression molding machine for compression molding by the temperature rising conveyor of the plate cutting oven of the tractor traction plate shearing machine, and the thermal insulation box is opened at proper time to provide a thermal insulation function. The application combines the extruded fiber reinforced polyester and the elastomer in the die, and the B surface is an elastomer, the A surface is a thermoplastic glass fiber reinforced plastic plate material which is pulled by a tractor and sheared into sheets for die pressing, and the lower dies of the two die presses alternately slide out and cooperate with a mechanical arm to realize alternate material receiving, die pressing and discharging during die pressing, thereby improving the die pressing efficiency to the greatest extent, increasing the production and enhancing the efficiency and reducing the cost.

Description

Intelligent co-extrusion molded thermoplastic fiberglass anti-slip pallet production line and production process

Technical Field

The invention discloses an intelligent co-extrusion molded thermoplastic glass fiber reinforced plastic anti-skid pallet production line and a production process, and in particular relates to an intelligent co-extrusion molded thermoplastic glass fiber reinforced plastic anti-skid pallet production line and a production process.

Background technique

Pallets have anti-slip and heat-insulating functions and are widely used in life. They are used in restaurants, cafes, hot pot restaurants, buffet restaurants and other places.

At present, the anti-skid pallet usually first undergoes rubber refining, sheeting, vulcanization, sheeting, fiber layer sheeting, high temperature and high pressure heating and curing molding, and then the film and anti-skid sheet are hot pressed. This process requires multiple processes, and the process is complex, time-consuming and labor-intensive, inefficient, the material cannot be reused, and waste is difficult to handle, among other disadvantages; in addition, as disclosed in the patent publication number CN102642313A, a rubber sheet lamination and multi-layer production line and a method for producing sheets thereof are disclosed, the production line mainly includes an L-type extruder, a 1# calender, a 1# stretching machine, a coating machine, a laminating device, a joint machine, a film buffer device, a 2# stretching machine, a 2# calender, and a winding device, and these devices are arranged in sequence; the preparation method mainly adopts a conveying and winding method for lamination, wherein the laminating device includes a 1# conveyor belt, a 1# cutter, a 2# conveyor belt, a 2# cutter, a 2# pressing roller, a 1# pressing roller and a transmission system, and the continuous preparation of multi-layer rubber composite sheets is achieved by alternately winding and conveying two sets of conveyor belts in the laminating device.

The above patent adopts an L-type extruder, a 1# calender, a 1# stretching machine, a coating machine, and a laminating device to produce the board. The entire production line is too complicated, costly, and inefficient.

Summary of the invention

Based on the shortcomings of the prior art, such as complex production lines, high costs and low efficiency, the present invention provides an intelligent co-extrusion molded thermoplastic fiberglass anti-skid pallet production line and production process.

The technical solution adopted by the present invention to solve the above technical problems is:

The intelligent co-extrusion molded thermoplastic glass fiber reinforced plastic anti-skid pallet production line includes: an extruder, which has two screw extruders and is connected to the same extrusion mold; a calender, which is located below the discharge port of the extrusion mold; a tractor, which is arranged at the rear side of the calender; a conveyor, which is arranged at the rear side of the tractor; a shearing machine, which is arranged between the tractor and the conveyor or on the conveyor frame or between the conveyor and the compression molding machine; a compression molding machine; a control box, which is used to control the extruder, the calender, the conveyor, the shearing machine, the conveyor and the compression molding machine, the compression molding machine The machine comprises two compression molding machines which are symmetrically arranged on the left and right sides, and the compression molding machines are provided with a left upper mold and a right upper mold which can be driven to rise and fall, the two compression molding machines are provided with a common slide rail which extends to the left and right sides, the two ends of the slide rail extend to the bottom of the two upper molds, the slide rail is provided with a left lower mold and a right lower mold which are driven by a driving mechanism to slide along the slide rail, the middle part of the track is provided with a material receiving station which is opposite to the front and back of the shearing machine, the upper part of the material receiving station is provided with a material clamping robot which moves forward and backward and a material unloading robot which moves forward and backward, when working, one of the left lower mold and the right lower mold slides to At the material receiving station, the clamping robot moves and clamps the plate and transfers it to the lower mold, the lower mold retreats to its original position, and the corresponding upper mold moves down to mold the plate. While the lower mold retreats, another lower mold slides to the material receiving station, the clamping robot moves and clamps the plate and transfers it to the lower mold, the lower mold retreats, and the corresponding upper mold moves down to mold the plate. After the lower mold retreats, the first lower mold slides out to the material receiving station along the slide rail, and the unloading robot moves to the material receiving station to remove the molded finished product, and the clamping robot moves to and clamps Take the plate and place it on the first lower mold, the lower mold retreats and cooperates with the corresponding upper mold for compression molding. During the molding, the second lower mold slides to the material receiving station, and the material taking robot takes the finished product molded on the lower mold, and then the plate is clamped by the clamping robot and placed on the lower mold. The lower mold continues to retreat and cooperates with the corresponding upper mold for compression molding, which maximizes the molding efficiency, reduces costs while increasing production and efficiency. The final product B side is TPE with anti-slip function, and the A side is thermoplastic fiberglass with high compressive resistance.

Preferably, the shearing machine is arranged between the traction machine and the conveyor and is supported and fixed by a bracket; or the shearing machine is arranged on the conveyor, and the conveyor belt between the two ends of the conveyor is changed in direction by rollers to form a concave U-shaped notch, and the shearing machine is arranged at the notch; or the shearing machine is arranged at the tail end of the conveyor.

Preferably, an oven is also included, which is arranged between the conveyor and the material receiving station and is used to heat the sheet material to be molded to increase the temperature of the sheet material for easy molding.

Preferably, the upper mold is driven to rise and fall by a hydraulic press, and the upper mold and the lower mold are cooled by water to facilitate rapid molding.

Preferably, a screw feeder is also included, the input end of the screw feeder is provided with a silo, and the output end of the screw feeder extends above the hopper of the extruder for feeding the extruder. The screw feeder is used to replace manual feeding, and can be controlled by a controller to feed the extruder regularly and quantitatively.

Preferably, the output end of the extruder is connected to a hydraulic screen changer through a pipeline, and the hydraulic screen changer is connected to the mold through a pipeline. The hydraulic screen changer is used to filter the extruded material of the extruder, remove impurities and particles, and improve the quality of the calendered sheet.

Preferably, the calender is a three-roll calender, which includes an upper roller, a middle roller and a lower roller from top to bottom, the middle roller is an embossing roller, and the discharge port of the mold is located between the lower roller and the middle roller; the upper roller, the middle roller and the lower roller are temperature-controllable rollers, and the temperature control range is 30 degrees to 100 degrees. The calender also includes a frame, on which two sets of tracks are provided and two mounting frames are slidably provided, and the upper roller and the lower roller and the servo motor driving the upper roller and the lower roller to rotate are respectively installed on the two mounting frames, and the upper roller, the lower roller and the middle roller are all provided with a spacing adjustment device, and the spacing adjustment device includes an adjustment screw arranged on the mounting frame and a nut seat rotatably arranged on the frame, and the adjustment screw is threadedly connected with the nut seat so that rotating the nut seat can make the mounting frame slide along the track to approach or move away from the middle roller.

As a preference, it also includes a heat preservation box, which is arranged at the front side of the tractor. When the plate needs to be kept warm, the heat preservation function of the heat preservation box is turned on, and when the plate temperature is sufficient, the heat preservation function of the heat preservation box is turned off. The heat preservation box is controlled by the control box.

Preferably, two forward and backward walking tracks are provided above the material receiving station, on which a clamping robot and a unloading robot driven by a walking drive mechanism are respectively slidably provided, the clamping robot has two pneumatic grippers, the unloading robot has a unloading cylinder and a pneumatic suction cup is provided at the output end of the unloading cylinder; wherein the walking drive mechanism is one of an electric push rod, a screw mechanism, a telescopic cylinder and a motor gear rack mechanism.

Preferably, the traction machine includes a bracket and a traction roller disposed on the bracket, and the plate passes through the traction roller and is pulled forward.

The production process of thermoplastic glass fiber reinforced plastic anti-skid trays, which uses the above-mentioned production line, includes the following steps:

S1, loading, placing the raw materials in the silo and conveying the raw materials to the extruder through the screw feeder;

S2, extrusion, the raw materials are heated and melted in the extruder, filtered through a hydraulic screen changer, compounded in the extrusion die and the extrudate is supplied to the calender, the extrudate in one extruder is an elastomer, and the extrudate in the other extruder is fiber-reinforced polyester particles;

S3, calendering, the extruded material is calendered and shaped in the calender to form a sheet, the B side of the sheet is an elastomer, and the A side is fiber-reinforced polyester particles;

S4, conveying and shearing, the plate is pulled by a tractor and sheared into plates, then heated in an oven, and then conveyed to the compression molding machine by a conveyor, or the plate is pulled by a tractor and then heated in an oven and then conveyed by a conveyor, and during the conveying process, it is sheared into plates by a shearing machine arranged on the conveyor, and after shearing, it continues to be conveyed by the conveyor until it reaches the compression molding machine, or the plate is heated in an oven and conveyed by a conveyor to the front side of the compression molding machine and sheared into plates by the shearing machine;

S5, molding; one of the lower left mold and the lower right mold slides to the material receiving station, the clamping robot moves and clamps the plate and transfers it to the lower mold, the lower mold retreats to its original position, and the corresponding upper mold moves down to mold the plate. While the lower mold retreats, the other lower mold slides to the material receiving station, the clamping robot moves and clamps the plate and transfers it to the lower mold, the lower mold retreats, and the corresponding upper mold moves down to mold the plate. After the lower mold retreats, the first lower mold slides out to the material receiving station along the slide rail, the unloading robot moves to the material receiving station to remove the molded finished product, the clamping robot moves to and clamps the plate and places it on the first lower mold, the lower mold retreats and cooperates with the corresponding upper mold for molding, while molding, the second lower mold slides to the material receiving station, the material taking robot removes the molded finished product on the lower mold, and then the clamping robot clamps the plate and places it on the lower mold, the lower mold continues to retreat and cooperates with the corresponding upper mold for molding, and the cycle is repeated.

Compared with the prior art, the advantages of the present invention are as follows: the present application uses a mold to compound the extruded fiber-reinforced polyester and the elastomer in a mold, and after compounding, it is calendered by a calender to form a plate with the B side being an elastomer and the A side being thermoplastic fiberglass. The plate is pulled and sheared into sheets by a traction machine and then conveyed for molding. During molding, the lower molds of the two molding machines slide out alternately and cooperate with the robot to achieve alternate material receiving, molding and unloading, which maximizes the molding efficiency and reduces costs while increasing production and efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

FIG1 is a side view of an intelligent co-extrusion molded thermoplastic fiberglass non-slip pallet production line;

FIG2 is a top view of the intelligent co-extrusion molded thermoplastic fiberglass anti-skid pallet production line;

FIG3 is a side view of the conveying and molding part of the intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-skid pallet production line;

FIG4 is a partial enlarged view of the upper roller adjustment structure of the calender;

Fig. 5 is a side view of the molding machine portion;

Fig. 6 is a perspective view of the molding machine portion;

FIG7 is a schematic structural diagram of the bottom portion of the molding machine;

In the figure: 10, screw feeder; 20, extruder; 201, extrusion die; 202, hydraulic screen changer; 30, insulation box; 40, shearing machine; 50, calender; 501, upper roller; 502, middle roller; 503, lower roller; 504, adjusting screw; 505, nut seat; 506, track; 507, mounting frame; 60, molding machine; 601, right molding machine; 6011, upper right mold, 6012, lower right mold; 602, left molding machine; 6021, upper left mold; 6022, lower left mold; 600, slide rail; 603, material clamping robot; 604, material picking robot; 70, traction machine; 80, oven; 90, conveyor.

Detailed ways

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

This embodiment mainly describes the production line and production process of intelligent co-extrusion molded thermoplastic fiberglass anti-skid pallet, as follows:

Example 1

The intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-skid pallet production line, as shown in Figures 1-7, includes: an extruder 20, which has two screw extruders 20 and is connected to the same extrusion mold 201, and the extrusion mold 201 is an in-mold composite mold; a calender 50, which is located below the discharge port of the extrusion mold 201; a tractor 70, which is arranged at the rear side of the calender 50; a conveyor 90, which is arranged at the rear side of the tractor 70; a shearing machine 40, which is arranged between the tractor 70 and the conveyor or on the conveyor frame or between the conveyor and the molding machine 60; the molding machine 60; a control box for controlling the extruder 20 ...tractor 70; a conveyor 90, which is arranged at the rear side of the tractor 70; a guillotine 40, which is arranged between the tractor 70 and the conveyor or on the conveyor frame or between the conveyor and the molding machine 60; a molding machine 60; a control box for controlling the extruder 20; a guillotine 40, which is The die-casting machine 20, the calender 50, the conveyor 90, the shearing machine 40, the conveyor 90 and the compression molding machine 60, the compression molding machine 60 includes two compression molding machines 60 symmetrically arranged on the left and right—a left compression molding machine 602 and a right compression molding machine 601, the compression molding machine 60 has a left upper mold 6021 and a right upper mold 6011 that can be driven to rise and fall, the two compression molding machines 60 are provided with a common slide rail 600 extending left and right, the two ends of the slide rail 600 extend to the bottom of the two upper molds, and the slide rail 600 is provided with a left lower mold 6022 and a right lower mold 601 that are driven by a driving mechanism to slide along the slide rail 600 2. A material receiving station opposite to the front and rear of the shearing machine 40 is provided in the middle of the track. A material clamping robot 603 moving forward and backward and a material unloading robot moving forward and backward are provided above the material receiving station. During operation, one of the lower left mold 6022 and the lower right mold 6012 slides to the material receiving station, the material clamping robot 603 moves and clamps the plate and transfers it to the lower mold, the lower mold retreats to its original position, the corresponding upper mold moves downward to mold the plate, while the lower mold retreats, the other lower mold slides to the material receiving station, the material clamping robot 603 moves and clamps the plate and transfers it to the lower mold, the lower mold retreats, and the corresponding The upper mold moves downward to compression mold the plate. After the lower mold retreats, the first lower mold slides out to the material receiving station along the slide rail 600. The unloading robot moves to the material receiving station to take down the finished product compression molded. The clamping robot moves to and clamps the plate and places it on the first lower mold. The lower mold retreats and cooperates with the corresponding upper mold for compression molding. While molding, the second lower mold slides to the material receiving station. The picking robot 604 takes down the finished product compression molded on the lower mold, and then the clamping robot 603 clamps the plate and places it on the lower mold. The lower mold continues to retreat and cooperates with the corresponding upper mold for compression molding, and the cycle is repeated. In this solution, the extruded polyester fiber and TPE are compounded in the mold through a mold, and after compounding, they are calendered by a calender 50 to form a plate with TPE on the B side and polyester fiber on the A side. The plate is pulled by a traction machine 70 and cut into plates and then transported for molding. During molding, the lower molds of the two molding machines slide out alternately and cooperate with the robot to achieve alternate material receiving, molding and unloading, thereby maximizing the molding efficiency, reducing costs while increasing production and efficiency. The final product has TPE on the B side with anti-slip function, and polyester fiber on the A side with high compression resistance.

The shearing machine 40 has three schemes: Scheme 1, as shown in Figures 1, 2, and 3, the shearing machine 40 is arranged between the tractor 70 and the conveyor 90 and is supported and fixed by a bracket;

Solution 2: The shearing machine 40 is arranged on the conveyor 90, and the conveyor belt between the two ends of the conveyor 90 is changed in direction by rollers to form a concave U-shaped notch, and the shearing machine 40 is arranged at the notch;

Option three, the shearing machine 40 can be set at the tail end of the conveyor 90. After the clamping robot 603 clamps the material, it pulls it a certain distance and then shears it. Under this option, a pressure plate with a gap is set and a notch for clamping is opened on the pressure plate. The plate passes through the middle of the pressure plate and is clamped by the clamping robot at the notch. Two notches and two clamps are set, and the shearing machine 40 is set at the feeding end of the pressure plate.

As shown in Fig. 1, 2 and 3, an oven 80 is also included. The oven 80 is arranged between the conveyor 90 and the material receiving station and is used to heat the sheet material to be molded to increase the temperature of the sheet material for easy molding.

As shown in Figures 1, 2 and 3, it also includes an insulation box 30, which is arranged on the front side of the traction machine. When the plate needs to be kept warm, the insulation function of the insulation box 30 is turned on. When the temperature of the plate is sufficient, the insulation function of the insulation box 30 is turned off.

As shown in Fig. 5-6, the upper mold 6011, 6021 is driven to rise and fall by a hydraulic press, and a cooling water device is provided inside the upper mold 6011, 6021. The heating device has a temperature control device to control the temperature of the upper mold 201 during molding to facilitate rapid molding.

As shown in Figures 1 and 2, a screw feeder 10 is also included. The input end of the screw feeder 10 is provided with a silo. The output end of the screw feeder 10 extends to the top of the hopper of the extruder 20 for feeding the extruder 20. The screw feeder 10 is used to replace manual feeding, and can be controlled by a controller to feed the extruder 20 in a timely and quantitative manner. Preferably, a crusher 102 is also provided. The crusher 102 is located on one side of the production line or is arranged at the rear side of the screw feeder 101. At the same time, another screw feeder 103 is arranged between the crusher 102 and the extruder 20. The crusher 102 is used to crush the recycled scraps and reuse them to achieve waste-free production.

As shown in Figures 1 and 2, the output end of the extruder 20 is connected to a hydraulic screen changer 202 through a pipeline, and the hydraulic screen changer 202 is connected to the mold 201 through a pipeline. The hydraulic screen changer 202 is used to filter the extruded material of the extruder 20, remove impurities and particles, and improve the quality of the calendered sheet.

As shown in Figures 1 and 4, the calender 50 is a three-roll calender, which includes, from top to bottom, an upper roller 501, a middle roller 502 and a lower roller 504. The middle roller 502 is an embossing roller, and the discharge port of the mold 201 is located between the lower roller and the middle roller 502. The upper roller 501, the middle roller 502 and the lower roller 504 are temperature-controllable rollers, and the temperature control range is 30 degrees to 100 degrees. The calender 50 also includes a frame, on which two sets of tracks 506 are provided and two mounting frames 507 are slidably provided. The upper roller 501 and the lower roller and the servo motors driving the upper roller 501 and the lower roller to rotate are respectively installed on the two mounting frames 507. The upper roller 501, the lower roller and the middle roller 502 are provided with spacing adjustment devices, which include an adjustment screw 504 provided on the mounting frame 507 and a nut seat 505 rotatably provided on the frame. The adjustment screw 504 is threadedly connected with the nut seat 505 so that the rotation of the nut seat 505 can make the mounting frame 507 slide along the track 506 to approach or move away from the middle roller 502. The calender adopts hydraulic lifting, manual worm gear pitch adjustment, self-locking function, safety emergency stop switch, and unified control through the control box.

As shown in FIGS. 1 and 4 , the traction machine 70 includes a bracket and traction rollers disposed on the bracket, and the plate passes through the traction rollers and is pulled forward.

As shown in Figures 5-6, two forward and backward walking tracks 600 are arranged above the material receiving station, and a clamping robot 603 and a unloading robot driven by a walking drive mechanism are respectively slidably arranged on the two walking tracks 600. The clamping robot 603 has two pneumatic grippers, and the unloading robot has a unloading cylinder and a pneumatic suction cup is arranged at the output end of the unloading cylinder; wherein the walking drive mechanism is one of an electric push rod, a screw mechanism, a telescopic cylinder and a motor gear rack mechanism.

It should be noted that in this embodiment, the two extruders are a 75-B twin-screw extruder and a 65/33 single-screw extruder, respectively. The discharge ends of the two extruders are both provided with a hydraulic screen changer and a metering pump, and the feed end of the extrusion die is provided with a diverter. The extrusion die is an in-mold composite die. The extruded material of the extruder is filtered out of impurities by the hydraulic screen changer, and then the discharge amount is controlled by the metering pump. The extruded material entering the die after being diverted by the diverter includes 85% of the base layer and 15% of the anti-slip layer. The base layer is fiber-reinforced polyester particles, and the anti-slip layer is an elastomer. In addition, the mold of the compression molding machine is provided with an embossed pattern, and different patterns are pressed according to needs.

Example 2

The production process of the anti-slip tray adopts the production line described in Example 1, and comprises the following steps:

S1, loading, placing the raw materials in the silo and conveying the raw materials to the extruder 20 through the screw feeder 10;

S2, extrusion, the raw material is heated and melted in the extruder 20, filtered through the hydraulic screen changer, compounded in the extrusion die 20 and the extruded material is supplied to the calender 50. The two extruders are

120/33 single screw extruder and 65/33 single screw extruder, both extruders are equipped with a hydraulic screen changer and a metering pump at the discharge end, and a diverter is provided at the feed end of the extrusion die. The extrusion die is an in-mold composite die. After the impurities are filtered out by the hydraulic screen changer at the discharge port of the extruder, the discharge amount is controlled by the metering pump. After the diversion by the diverter, the extruded material entering the die includes 85% of the base layer and 15% of the anti-slip layer. The base layer is fiber-reinforced polyester particles, and the anti-slip layer is an elastomer.

S3, calendering, the extruded material is calendered and shaped at a calender 50 to form a sheet;

S4, conveying and shearing, the plate is pulled by the traction machine 70 and sheared into plates, and then heated by the oven 80, and then conveyed to the compression molding machine 60 by the conveyor, or the plate is pulled by the traction machine 70 and then heated by the oven 80 and then conveyed by the conveyor, and in the conveying process, it is sheared into plates by the shearing machine 40 arranged on the conveyor, and after shearing, it continues to be conveyed by the conveyor until it reaches the compression molding machine 60, or the plate is heated by the oven 80 and conveyed by the conveyor to the front side of the compression molding machine 60 and sheared into plates by the shearing machine 40;

S5, molding; one of the lower left mold and the lower right mold slides to the material receiving station, the clamping robot moves and clamps the plate and transfers it to the lower mold, the lower mold retreats to its original position, and the corresponding upper mold moves down to mold the plate. While the lower mold retreats, the other lower mold slides to the material receiving station, the clamping robot moves and clamps the plate and transfers it to the lower mold, the lower mold retreats, and the corresponding upper mold moves down to mold the plate. After the lower mold retreats, the first lower mold slides out to the material receiving station along the slide rail, the unloading robot moves to the material receiving station to remove the molded finished product, the clamping robot moves to and clamps the plate and places it on the first lower mold, the lower mold retreats and cooperates with the corresponding upper mold for molding, while molding, the second lower mold slides to the material receiving station, the material taking robot removes the molded finished product on the lower mold, and then the clamping robot clamps the plate and places it on the lower mold, the lower mold continues to retreat and cooperates with the corresponding upper mold for molding, and the cycle is repeated.

The titles provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims (10)

1. Intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip tray production line includes: the extruder is provided with two screw extruders and is connected with the same extrusion die; a calender which is positioned below a discharge port of the extrusion die; a tractor arranged at the rear side of the calender; a conveyor disposed at a rear side of the tractor; the plate shearing machine is arranged between the tractor and the conveyor or on the conveyor frame or between the conveyor and the compression molding machine; compression molding machine; the control box is used for controlling the extruder, the calender, the conveyor, the plate shearing machine, the conveyor and the compression molding machine, and is characterized in that the compression molding machine comprises two compression molding machines which are symmetrically arranged left and right, the compression molding machine is provided with an upper left die and an upper right die which can be driven to lift, the two compression molding machines are provided with a shared slide rail which extends left and right, two ends of the slide rail extend to the lower parts of the two upper dies, the slide rail is provided with a lower left die and a lower right die which slide along the slide rail by driving mechanism, the middle part of the rail is provided with a material receiving station which is opposite to the plate shearing machine in front and back, one of the lower left die and the lower right die slides to the material receiving station when in operation, the material clamping robot moves and clamps and transfers the plate material onto the lower die, the lower die is retracted to the original position, the corresponding upper die moves down to the plate compression molding, while the lower die is retracted, the other lower die slides to the material receiving station, the material clamping robot moves and clamps and transfers the plate to the lower die, the corresponding upper die moves down to the plate compression molding, after the lower die is retracted, the first lower die slides out to the material receiving station along the sliding rail, the material clamping robot moves to the material receiving station to take off the compression molded finished product, the material clamping robot moves to and clamps the plate and places the plate on the first lower die, the lower die is retracted and cooperates with the corresponding upper die to compression molding, while the material clamping robot slides to the material receiving station, the material taking robot takes off the compression molded finished product on the lower die to take off, and then the material clamping robot clamps the plate to place on the lower die, the lower die continuously retreats and is matched with the corresponding upper die for compression molding, and the lower die is circulated in sequence.

2. The intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip pallet production line according to claim 1, wherein the plate shearing machine is arranged between the tractor and the conveyor and is supported and fixed by a bracket; or the plate shearing machine is arranged on the conveyor, the conveyor belt between the two ends of the conveyor is turned by the roller to form a concave U-shaped notch, and the plate shearing machine is arranged at the notch; or the plate shearing machine is arranged at the tail end of the conveyor.

3. The intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip tray production line according to claim 1, further comprising an oven arranged between the conveyor and the receiving station for heating the plate to be molded to raise the temperature of the plate for facilitating molding.

4. The intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip tray production line according to claim 1, wherein the upper die is driven to lift by an oil press, and the upper die and the lower die are connected with a cooling device.

5. The intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip tray production line according to claim 1, further comprising a screw feeder, wherein the input end of the screw feeder is provided with a stock bin, and the output end of the screw feeder extends to the upper part of a hopper of the extruder for feeding the extruder.

6. The intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip tray production line according to claim 1, wherein the output end of the extruder is connected with a hydraulic screen changer through a pipeline, and the hydraulic screen changer is connected with the extrusion die through a pipeline.

7. The intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip tray production line according to claim 1, wherein the calender is a three-roller calender, which comprises an upper roller, a middle roller and a lower roller in sequence from top to bottom, and a discharge hole of the die is positioned between the lower roller and the middle roller; the upper roller, the middle roller and the lower roller are temperature-controllable rollers, and the temperature control range is 30-100 ℃.

8. The intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-slip tray production line according to claim 1, further comprising an insulation box, wherein the insulation box is arranged on the front side of the tractor, the insulation box insulation function is opened when the insulation of the plate is required, and the insulation box insulation function is closed when the temperature of the plate is enough.

9. The intelligent co-extrusion molding thermoplastic glass fiber reinforced plastic anti-skid tray production line according to claim 1, wherein two forward and backward traveling rails are arranged above the material receiving station, a material clamping robot and a material discharging robot which are driven by traveling driving mechanisms are respectively arranged on the two traveling rails in a sliding manner, the material clamping robot is provided with two pneumatic clamping jaws, the material discharging robot is provided with a material discharging cylinder, and the output end of the material discharging cylinder is provided with a pneumatic sucker; the walking driving mechanism is one of an electric push rod, a screw rod mechanism, a telescopic cylinder and a motor gear rack mechanism.

10. A process for producing a thermoplastic glass fiber reinforced plastic anti-slip pallet by using the production line as claimed in any one of claims 1 to 9, which is characterized by comprising the following steps:

s1, feeding, namely placing raw materials in a storage bin, and conveying the raw materials to an extruder through a spiral feeding machine;

S2, extruding, namely heating and melting raw materials in an extruder, filtering the raw materials by a hydraulic screen changer, quantitatively outputting the raw materials to a flow divider, and finally compounding the raw materials in an extrusion die and supplying the extruded materials to a calender, wherein the extruded materials in one extruder are elastic bodies, and the extruded materials in the other extruder are fiber reinforced polyester particles;

s3, calendaring, wherein an extruded material is calendared and shaped at a calendaring machine to form a plate, the B surface of the plate is an elastomer, and the A surface of the plate is a fiber reinforced polyester plate;

S4, conveying and shearing plates, wherein the plates are pulled by a tractor and sheared into plates and then heated by an oven, then conveyed to a compression molding machine by a conveyor or conveyed by the conveyor after being heated by the oven after being pulled by the tractor, sheared into plates by a plate shearing machine arranged on the conveyor in the conveying process, and conveyed by the conveyor after shearing until the compression molding machine or the plates are heated by the oven and conveyed to the front side of the compression molding machine by the conveyor, sheared into plates by the plate shearing machine;

S5, mould pressing; one of the left lower die and the right lower die slides to a receiving station, the clamping robot moves and clamps and transfers the plate to the lower die, the lower die returns to the original position, the corresponding upper die moves downwards to perform compression molding on the plate, while the lower die returns, the other lower die slides to the receiving station, the clamping robot moves and clamps and transfers the plate to the lower die, the lower die returns, the corresponding upper die moves downwards to perform compression molding on the plate, after the lower die returns, the first lower die slides out to the receiving station along the slide rail, the clamping robot moves to the receiving station to take off the compression molded finished product, the clamping robot moves to clamp and clamps the plate and places the plate on the first lower die, the lower die returns and cooperates with the corresponding upper die to perform compression molding, while the second lower die slides to the receiving station, the clamping robot takes off the finished product of the lower die to perform compression molding, and then the clamping robot continues to circulate the plate sequentially after the lower die returns.