Hot welding conveying device for plastic sheet processing

Abstract

The hot welding conveying device for plastic sheet machining is applied to the technical field of plastic sheet machining and comprises a conveying machine table, a conveying roller is rotationally connected into the conveying machine table, a driving motor is connected to one side of the outer portion of the conveying machine table in a bolted mode, and the output end of the driving motor is connected with the conveying roller in a bolted mode; the ends, close to the driving motor, of the conveying rollers are fixedly sleeved with first linkage gears. The upper half U-shaped plastic part is placed on the conveying rollers to be conveyed, and the lower half U-shaped plastic part is fixed to the bottom of the hot welding mechanism. In the forward conveying process of the upper half U-shaped plastic part, the lower half U-shaped plastic part and the upper half U-shaped plastic part can move forward synchronously, and the upper half U-shaped plastic part and the lower half U-shaped plastic part are subjected to hot welding and combined together through the hot welding mechanism. Therefore, the conveying device does not need to be shut down in the hot welding process, the plastic workpieces can be conveyed while being subjected to hot welding, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic sheet processing, and in particular relates to a hot welding conveying device for plastic sheet processing. Background Art

[0002] Plastic heat welding refers to a connection method that uses heating to melt the contact surfaces of two plastic parts at the same time and fit them together, thereby combining them into a whole.

[0003] At present, a Chinese invention with the publication number of CN103624974B discloses a plastic welding machine. Existing plastic heat welding is generally used to process some plastic parts with complex structures such as S-shaped, X-shaped, and U-shaped, and the plastic is processed into curved or flat plastic sheets with simple structures, and then the plastic sheets are heat-welded into corresponding plastic parts. However, the existing plastic parts cannot be heat-welded during the conveying process, and the conveying equipment needs to be stopped to ensure that the plastic sheets are heat-welded together in a regular manner. Therefore, during the processing of plastic parts on the assembly line, the conveying equipment needs to be repeatedly stopped and restarted, which not only greatly affects the processing efficiency of the plastic parts, but also the continuous start and stop of the conveying equipment is also relatively harmful to the machine, which is easy to cause damage, thereby reducing the service life of the equipment. Summary of the invention

[0004] The object of the present invention is to provide a heat welding conveying device for processing plastic sheets, which has the advantages of enabling the plastic sheets to be heat welded together during the conveying process and improving the flatness of the heat welded plastic sheets, reducing the skewness of the welding surface, and improving the processing efficiency and quality of plastic parts.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: a hot welding conveying device for plastic sheet processing, comprising a conveyor table, the internal rotation of the conveyor table is connected to a conveying roller, a driving motor is bolted to one side of the outside of the conveyor table, the output end of the driving motor is bolted to the conveying roller, the end of the conveying roller close to the driving motor is fixedly sleeved with a first linkage gear, the surface of the first linkage gear is transmission-connected with a transmission chain, and the top of the conveyor table is respectively equipped with a hot welding mechanism and a shaping mechanism used in conjunction with the conveying roller.

[0006] The above technical solution is adopted, by placing the upper half U-shaped plastic part on the conveying roller for conveying and fixing the lower half U-shaped plastic part at the bottom of the heat welding mechanism. When the upper half U-shaped plastic part is conveyed forward, the lower half U-shaped plastic part can move forward synchronously with the upper half U-shaped plastic part, and the upper half U-shaped plastic part and the lower half U-shaped plastic part are heat-welded together by the heat welding mechanism. Therefore, there is no need to stop the conveying device during the heat welding process, and the plastic parts can be heat-welded together while being conveyed, thereby improving the processing efficiency. The upper half U-shaped plastic part and the lower half U-shaped plastic part are heat-welded together during the forward movement. Then, the heat-welded U-shaped plastic parts are shaped by rolling the shaping mechanism and the conveying rollers, and the welded end faces of the welded upper half U-shaped plastic part and the lower half U-shaped plastic part are rolled flush, so that the welded end faces are parallel to each other. Thereby, the flatness after heat welding is improved, the welded surface is prevented from being skewed, and the processing quality is improved.

[0007] The present invention is further configured as follows: the hot welding mechanism includes a rotating shaft rotatably connected to one side of the top of the conveyor platform, the conveying roller and the end of the rotating shaft away from the driving motor are both connected to a transmission belt through a pulley transmission, the end of the rotating shaft close to the shaping mechanism is provided with a reciprocating screw rod rotatably connected to the conveyor platform, the end of the reciprocating screw rod close to the rotating shaft and the surface of the rotating shaft are bolted with mutually meshing bevel gears, the surface of the reciprocating screw rod is threadedly sleeved with a reciprocating screw rod sleeve slidably connected to the conveyor platform, the bottom of the reciprocating screw rod sleeve is welded with a sliding plate, the top of the sliding plate is bolted with a first cylinder, and the output end of the first cylinder is bolted with a plastic fixing plate.

[0008] By adopting the above technical solution, during the forward conveying process of the upper U-shaped plastic part, the lower U-shaped plastic part can move forward synchronously with the upper U-shaped plastic part without stopping the conveying.

[0009] The present invention is further configured as follows: a lower U-shaped plastic part is arranged at the bottom of the plastic part fixing plate, an upper U-shaped plastic part slidably connected to a conveying roller is arranged at the bottom of the lower U-shaped plastic part, an electric suction cup used in conjunction with the lower U-shaped plastic part is bolted inside the plastic part fixing plate, a heater is bolted on the side of the plastic part fixing plate away from the shaping mechanism, a second cylinder is bolted on the side of the heater away from the plastic part fixing plate, a metal sheet used in conjunction with the upper U-shaped plastic part and the lower U-shaped plastic part is bolted on the output end of the second cylinder, and a heat-conducting metal mesh used in conjunction with the metal sheet is installed inside the heater.

[0010] By adopting the above technical solution, the metal sheet absorbs the heat generated by the heater, so that when the metal sheet is attached to the upper U-shaped plastic part and the lower U-shaped plastic part, the end faces of the upper U-shaped plastic part and the lower U-shaped plastic part can be melted so that they can be joined.

[0011] The present invention is further configured as follows: the shaping mechanism includes a shaping roller arranged on the top of the conveying roller and rotatably connected to the conveyor platform, one end of the shaping roller and the conveying roller are bolted with first interlocking gears that mesh with each other, the surface of the shaping roller is slidably connected with an expansion arc piece that is used in conjunction with the upper U-shaped plastic part and the lower U-shaped plastic part, both sides of the bottom of the expansion arc piece are provided with inclined sliding grooves, both sides of the inside of the shaping roller are installed with first springs, and the ends of the two first springs close to the expansion arc piece are fixedly connected with conical stops that are slidably connected to the shaping roller and the expansion arc piece respectively.

[0012] By adopting the above technical solution, the welded end faces of the upper and lower U-shaped plastic parts that are welded together are rolled flush, so that the welded end faces are parallel to each other, thereby preventing the weld surfaces from being skewed.

[0013] The present invention is further configured as follows: both ends of the conveying roller are welded with hexagonal sliding rods, the surface of the hexagonal sliding rods is slidably sleeved with a sliding clamp used in conjunction with the upper U-shaped plastic part, and the side of the sliding clamp away from the conveying roller is fixedly connected to a second spring bolted to the conveying roller.

[0014] By adopting the above technical solution, the elastic force of the second spring is used to push the sliding clamp plate to slide on the surface of the hexagonal slide bar, thereby clamping and fixing the upper half of the U-shaped plastic part to prevent shaking and deviation during transportation. At the same time, the hexagonal slide bar can drive the sliding clamp plate to rotate synchronously with the conveying roller to convey the upper half of the U-shaped plastic part.

[0015] The present invention is further configured as follows: a fixed frame bolted to the conveyor table is provided on the side of the shaping mechanism away from the hot welding mechanism, a cooling window is bolted to the top of the fixed frame, a shaping fan used in conjunction with the upper U-shaped plastic part and the lower U-shaped plastic part is bolted to the inside of the cooling window, and a filter is fixedly connected to the top of the cooling window.

[0016] By adopting the above technical solution, the upper half U-shaped plastic part and the lower half U-shaped plastic part entering the fixing frame are cooled by turning on the shaping fan, so that the welding surface is quickly shaped.

[0017] The present invention is further configured as follows: both sides of the reciprocating screw rod sleeve are slidably connected with limit rods welded to the conveyor platform, and the reciprocating screw rod sleeve is slidably connected to the surface of the reciprocating screw rod through the limit rods.

[0018] By adopting the above technical solution, the reciprocating screw sleeve that slides back and forth is limited by the limiting rod, so that the reciprocating screw sleeve cannot rotate.

[0019] The present invention is further configured as follows: a plastic component clamping plate abutting against the upper half of the U-shaped plastic component is welded to the bottom side of the plastic component fixing plate away from the heater.

[0020] By adopting the above technical solution, when the upper half U-shaped plastic part and the lower half U-shaped plastic part are welded, the plastic part clamping plate is used to hold one end of the upper half U-shaped plastic part. Therefore, when the lower half U-shaped plastic part presses the upper half U-shaped plastic part downward, the arc surface of the upper half U-shaped plastic part will not rotate, resulting in end face deviation.

[0021] The present invention is further configured such that: one end of the conveyor platform away from the heat welding mechanism is bolted with a discharge chute used in conjunction with a conveying roller.

[0022] By adopting the technical solution, the U-shaped plastic part which has been heat-welded and cooled to be finalized can be easily slid out of the top of the conveying roller.

[0023] In summary, the present invention has the following beneficial effects:

[0024] 1. Place the upper U-shaped plastic part on the conveying roller for conveying and fix the lower U-shaped plastic part at the bottom of the heat welding mechanism. When the upper U-shaped plastic part is conveyed forward, the lower U-shaped plastic part can move forward synchronously with the upper U-shaped plastic part, and the upper U-shaped plastic part and the lower U-shaped plastic part are heat-welded together by the heat welding mechanism. Therefore, there is no need to stop the conveying device during the heat welding process, and the plastic parts can be heat-welded together while being conveyed, thereby improving processing efficiency;

[0025] 2. The upper and lower U-shaped plastic parts are heat-welded together while they are moving forward. Then the heat-welded U-shaped plastic parts are shaped by rolling the shaping mechanism and the conveying rollers, and the welded ends of the upper and lower U-shaped plastic parts are rolled flush to make them parallel to each other. This improves the flatness after heat welding, prevents the weld surface from being skewed, and improves the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a partial structural cross-sectional view of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the heat welding mechanism of the present invention;

[0029] Figure 4 It is a cross-sectional view of the structure of the heat welding mechanism of the present invention;

[0030] Figure 5 is a cross-sectional view of the conveyor roller structure of the present invention;

[0031] Figure 6 It is a cross-sectional view of the shaping mechanism structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the working state of the shaping mechanism of the present invention;

[0033] Figure 8 is a cross-sectional view of the cooling window structure of the present invention;

[0034] Fig. 9 The present invention Figure 2 Enlarged view of point A in .

[0035] Figure numerals: 1, conveyor platform; 2, driving motor; 3, conveying roller; 4, first linkage gear; 5, transmission chain; 6, heat welding mechanism; 601, rotating shaft; 602, transmission belt; 603, reciprocating screw rod; 604, bevel gear; 605, reciprocating screw rod sleeve; 606, sliding plate; 607, first cylinder; 608, plastic part fixing plate; 609, electric suction cup; 610, heater; 611, second cylinder; 612, metal sheet; 613, heat-conducting metal mesh ; 7. Shaping mechanism; 701. Shaping roller; 702. First linkage gear; 703. First spring; 704. Expansion arc sheet; 705. Inclined slide groove; 706. Conical stop block; 8. Upper U-shaped plastic part; 9. Lower U-shaped plastic part; 10. Hexagonal slide bar; 11. Second spring; 12. Sliding splint; 13. Plastic part clamping plate; 14. Fixed frame; 15. Cooling window; 16. Filter screen; 17. Shaping fan; 18. Limit rod; 19. Discharge chute. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0037] Embodiment 1:

[0038] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Fig. 9A heat welding conveying device for processing plastic sheets comprises a conveyor platform 1, wherein a conveying roller 3 is rotatably connected inside the conveyor platform 1, a driving motor 2 is bolted to one side of the outside of the conveyor platform 1, an output end of the driving motor 2 is bolted to the conveying roller 3, a first linkage gear 4 is fixedly sleeved on one end of the conveying roller 3 close to the driving motor 2, a transmission chain 5 is connected to the surface of the first linkage gear 4, and a heat welding mechanism 6 and a shaping mechanism 7 used in conjunction with the conveying roller 3 are respectively installed on the top of the conveyor platform 1. The upper half U-shaped plastic part 8 is placed on the conveying roller 3 for conveying and the lower half U-shaped plastic part 9 is fixed on the bottom of the heat welding mechanism 6. When the upper half U-shaped plastic part 8 is conveyed forward, the lower half U-shaped plastic part 9 can move forward synchronously with the upper half U-shaped plastic part 8, and the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 are heat welded together by the heat welding mechanism 6. Therefore, there is no need to stop the conveying device during the heat welding process, and the plastic parts can be heat welded together while being conveyed, thereby improving the processing efficiency. The upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 are heat-welded together during the process of moving forward. Then, the heat-welded U-shaped plastic parts are shaped by rolling the shaping mechanism 7 and the conveying roller 3, and the welded end surfaces of the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 are rolled flush, so that the welded end surfaces are parallel to each other. Thus, the flatness after heat welding is improved, the weld surface is prevented from being skewed, and the processing quality is improved.

[0039] refer to Figure 2 , Figure 3 , Figure 4 The hot welding mechanism 6 includes a rotating shaft 601 rotatably connected to one side of the top of the conveyor platform 1, the conveying roller 3 and the end of the rotating shaft 601 away from the driving motor 2 are both connected to a transmission belt 602 through a pulley transmission, and the end of the rotating shaft 601 close to the shaping mechanism 7 is provided with a reciprocating screw 603 rotatably connected to the conveyor platform 1, and the end of the reciprocating screw 603 close to the rotating shaft 601 and the surface of the rotating shaft 601 are bolted with mutually meshing bevel gears 604, and the surface of the reciprocating screw 603 is threadedly sleeved with a reciprocating screw sleeve 605 slidably connected to the conveyor platform 1, and the bottom of the reciprocating screw sleeve 605 is welded with a sliding plate 606, and the top of the sliding plate 606 is bolted with a first cylinder 607, and the output end of the first cylinder 607 is bolted with a plastic part fixing plate 608. When the upper half U-shaped plastic part 8 is conveyed forward, the lower half U-shaped plastic part 9 can move forward synchronously with the upper half U-shaped plastic part 8 without stopping the conveying.

[0040] refer to Figure 3 , Figure 4A lower U-shaped plastic part 9 is arranged at the bottom of the plastic part fixing plate 608, an upper U-shaped plastic part 8 slidably connected to the conveying roller 3 is arranged at the bottom of the lower U-shaped plastic part 9, an electric suction cup 609 used in conjunction with the lower U-shaped plastic part 9 is bolted inside the plastic part fixing plate 608, a heater 610 is bolted to the side of the plastic part fixing plate 608 away from the shaping mechanism 7, a second cylinder 611 is bolted to the side of the heater 610 away from the plastic part fixing plate 608, a metal sheet 612 used in conjunction with the upper U-shaped plastic part 8 and the lower U-shaped plastic part 9 is bolted to the output end of the second cylinder 611, and a heat-conducting metal mesh 613 used in conjunction with the metal sheet 612 is installed inside the heater 610. The metal sheet 612 absorbs the heat generated by the heater 610, so that when the metal sheet 612 is attached to the upper U-shaped plastic part 8 and the lower U-shaped plastic part 9, the end surfaces of the upper U-shaped plastic part 8 and the lower U-shaped plastic part 9 can be melted so that they can be joined.

[0041] refer to Figure 2 , Figure 6 , Figure 7 The shaping mechanism 7 includes a shaping roller 701 arranged on the top of the conveying roller 3 and rotatably connected to the conveyor platform 1. The shaping roller 701 and one end of the conveying roller 3 are both bolted with a first interlocking gear 702 that meshes with each other. The surface of the shaping roller 701 is slidably connected with an expansion arc piece 704 that is used in conjunction with the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9. Both sides of the bottom of the expansion arc piece 704 are provided with inclined slide grooves 705. Both sides of the interior of the shaping roller 701 are installed with first springs 703. One end of the two first springs 703 close to the expansion arc piece 704 is fixedly connected with a conical stopper 706 that is respectively slidably connected to the shaping roller 701 and the expansion arc piece 704. The welded end faces of the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 are rolled flush to make the welded end faces parallel to each other to prevent the weld surface from being skewed.

[0042] refer to Figure 4 , Figure 5 , both ends of the conveying roller 3 are welded with a hexagonal slide bar 10, and a sliding clamp 12 used in conjunction with the upper half U-shaped plastic part 8 is slidably sleeved on the surface of the hexagonal slide bar 10, and a second spring 11 bolted to the conveying roller 3 is fixedly connected to the side of the sliding clamp 12 away from the conveying roller 3. The elastic force of the second spring 11 is used to push the sliding clamp 12 to slide on the surface of the hexagonal slide bar 10, so as to clamp and fix the upper half U-shaped plastic part 8 to prevent shaking and deviation during the conveying process. At the same time, the hexagonal slide bar 10 can drive the sliding clamp 12 to rotate synchronously with the conveying roller 3 to convey the upper half U-shaped plastic part 8.

[0043] refer to Figure 1 , Figure 2 , Figure 8A fixing frame 14 bolted to the conveyor platform 1 is provided on the side of the shaping mechanism 7 away from the hot welding mechanism 6, a cooling window 15 is bolted to the top of the fixing frame 14, a shaping fan 17 used in conjunction with the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 is bolted inside the cooling window 15, and a filter 16 is fixedly connected to the top of the cooling window 15. By turning on the shaping fan 17, the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 entering the fixing frame 14 are cooled, thereby quickly shaping the welding surface.

[0044] refer to Figure 1 The two sides of the reciprocating screw rod sleeve 605 are slidably connected with the limiting rods 18 welded with the conveyor platform 1, and the reciprocating screw rod sleeve 605 is slidably connected on the surface of the reciprocating screw rod 603 through the limiting rods 18. The limiting rods 18 are used to limit the reciprocating screw rod sleeve 605 that slides back and forth, so that the reciprocating screw rod sleeve 605 cannot rotate.

[0045] refer to Figure 3 , Figure 4 A plastic fixing plate 13 is welded to the bottom of the plastic fixing plate 608 on the side away from the heater 610. The plastic fixing plate 13 is welded to the upper U-shaped plastic part 8. When the upper U-shaped plastic part 8 and the lower U-shaped plastic part 9 are welded, one end of the upper U-shaped plastic part 8 is pressed by the plastic fixing plate 13. Therefore, when the lower U-shaped plastic part 9 presses the upper U-shaped plastic part 8 downward, the arc surface of the upper U-shaped plastic part 8 will not rotate, resulting in end surface deviation.

[0046] refer to Figure 1 , Figure 2 The end of the conveyor platform 1 away from the heat welding mechanism 6 is bolted with a discharge chute 19 used in conjunction with the conveying roller 3. It is convenient to slide the U-shaped plastic parts after the heat welding is completed and cooled and shaped out of the top of the conveying roller 3.

[0047] Brief description of the use process: By turning on the driving motor 2 and using the first linkage gear 4 and the transmission chain 5 to mesh with each other, the multiple conveying rollers 3 inside the conveyor platform 1 are driven to rotate synchronously, so that the upper half U-shaped plastic part 8 placed on the top of the conveying roller 3 can move forward. Then, the conveying roller 3 uses the transmission belt 602 to drive the rotating shaft 601 to rotate, so that the reciprocating screw rod 603 rotates after being meshed with the two bevel gears 604 and interlocks with the reciprocating screw rod sleeve 605, so that the reciprocating screw rod sleeve 605 drives the bottom sliding plate 606 to slide back and forth under the limit of the limit rod 18. After that, by placing the lower half U-shaped plastic part 9 at the bottom of the plastic part fixing plate 608 and turning on the electric suction cup 609 to adsorb and fix the lower half U-shaped plastic part 9, the upper half U-shaped plastic part 8 can move synchronously with the upper half U-shaped plastic part 8 during the moving and conveying process. Then, during the synchronous movement of the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9, the first cylinder 607 is turned on to drive the plastic part fixing plate 608 to move downward, so that the arc-shaped end faces of the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 are brought closer to each other, and at the same time, the second cylinder 611 is turned on to drive the metal sheet 612 to extend out of the heater 610, so that the metal sheet 612 heated by the heat-conducting metal mesh 613 can be inserted between the arc-shaped end faces of the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 to heat and melt them. Finally, by retracting the metal sheet 612 into the heater 610 and pressing the lower half U-shaped plastic part 9 on the top of the upper half U-shaped plastic part 8, the arc-shaped end faces of the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 are welded together to form a U-shaped plastic part, so that heat welding can be performed during the transportation of the upper half U-shaped plastic part 8;

[0048] After the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 are heat-welded together by the heat welding mechanism 6, the conveying roller 3 conveys the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 to the surface of the shaping mechanism 7, so that the U-shaped plastic part welded by the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 can be sleeved on the surface of the shaping roller 701. Then, the elastic force of the first spring 703 is used to push the conical stopper 706 forward, so that the expansion arc sheet 704 slides with the surface of the conical stopper 706 by using the inclined slide groove 705, so as to fit and abut the arc inner side surface of the U-shaped plastic part. Afterwards, the shaping roller 701 and the conveying roller 3 are meshed with each other by the first linkage gear 702, so that the shaping roller 701 rotates in the opposite direction to the conveying roller 3, and then the expansion arc sheet 704 and the conveying roller 3 can roll the U-shaped plastic part, rolling the welded end faces of the upper half U-shaped plastic part 8 and the lower half U-shaped plastic part 9 that are welded together flush, so that the welded end faces are parallel to each other. At this time, since the U-shaped plastic part is blocked by the shaping roller 701 and cannot move forward, the friction force generated by the expansion of the expansion arc sheet 704 and the contact with the U-shaped plastic part will drive the U-shaped plastic part to rotate 180° clockwise, thereby moving the arc end of the U shape to another direction, so that the U-shaped plastic part can break away from the shaping roller 701 and continue to slide forward.

[0049] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A heat welding conveying device for processing plastic sheets, comprising a conveying platform (1), characterized in that: The conveyor platform (1) is internally rotatably connected to a conveying roller (3), a driving motor (2) is bolted to one side of the outside of the conveyor platform (1), the output end of the driving motor (2) is bolted to the conveying roller (3), a first linkage gear (4) is fixedly sleeved on one end of the conveying roller (3) close to the driving motor (2), a transmission chain (5) is transmission-connected to the surface of the first linkage gear (4), and a heat welding mechanism (6) and a shaping mechanism (7) used in conjunction with the conveying roller (3) are respectively installed on the top of the conveyor platform (1).

2. The heat welding conveying device for plastic sheet processing according to claim 1, characterized in that: The hot welding mechanism (6) comprises a rotating shaft (601) rotatably connected to one side of the top of the conveyor platform (1); the conveying roller (3) and the end of the rotating shaft (601) away from the driving motor (2) are both connected to a transmission belt (602) via a pulley transmission; the end of the rotating shaft (601) close to the shaping mechanism (7) is provided with a reciprocating screw rod (603) rotatably connected to the conveyor platform (1); the end of the reciprocating screw rod (603) close to the rotating shaft (601) is connected to the conveyor platform (1) The ends of the reciprocating screw rod (603) and the surfaces of the rotating shaft (601) are both bolted with mutually meshing bevel gears (604); the surface of the reciprocating screw rod (603) is threadedly sleeved with a reciprocating screw rod sleeve (605) which is slidably connected to the conveyor platform (1); a sliding plate (606) is welded to the bottom of the reciprocating screw rod sleeve (605); the top of the sliding plate (606) is bolted with a first cylinder (607); the output end of the first cylinder (607) is bolted with a plastic fixing plate (608).

3. The heat welding conveying device for plastic sheet processing according to claim 2, characterized in that: A lower U-shaped plastic part (9) is arranged at the bottom of the plastic part fixing plate (608), an upper U-shaped plastic part (8) slidably connected to the conveying roller (3) is arranged at the bottom of the lower U-shaped plastic part (9), an electric suction cup (609) used in conjunction with the lower U-shaped plastic part (9) is bolted inside the plastic part fixing plate (608), a heater (610) is bolted to the side of the plastic part fixing plate (608) away from the shaping mechanism (7), a second cylinder (611) is bolted to the side of the heater (610) away from the plastic part fixing plate (608), a metal sheet (612) used in conjunction with the upper U-shaped plastic part (8) and the lower U-shaped plastic part (9) is bolted to the output end of the second cylinder (611), and a heat-conducting metal mesh (613) used in conjunction with the metal sheet (612) is installed inside the heater (610).

4. The heat welding conveying device for plastic sheet processing according to claim 3, characterized in that: The shaping mechanism (7) comprises a shaping roller (701) arranged on the top of the conveying roller (3) and rotatably connected to the conveyor platform (1); one end of the shaping roller (701) and the conveying roller (3) are both bolted with a first interlocking gear (702) that meshes with each other; the surface of the shaping roller (701) is slidably connected with an expansion arc sheet (704) used in conjunction with the upper half U-shaped plastic part (8) and the lower half U-shaped plastic part (9); both sides of the bottom of the expansion arc sheet (704) are provided with inclined sliding grooves (705); both sides of the interior of the shaping roller (701) are installed with first springs (703); and one end of the two first springs (703) close to the expansion arc sheet (704) is fixedly connected with a conical stopper (706) that is slidably connected to the shaping roller (701) and the expansion arc sheet (704) respectively.

5. The heat welding conveying device for plastic sheet processing according to claim 3, characterized in that: Both ends of the conveying roller (3) are welded with a hexagonal sliding rod (10), and the surface of the hexagonal sliding rod (10) is slidably sleeved with a sliding clamp (12) used in conjunction with the upper U-shaped plastic part (8), and the side of the sliding clamp (12) away from the conveying roller (3) is fixedly connected with a second spring (11) bolted to the conveying roller (3).

6. The heat welding conveying device for plastic sheet processing according to claim 3, characterized in that: A fixed frame (14) bolted to the conveyor platform (1) is arranged on the side of the shaping mechanism (7) away from the hot welding mechanism (6); a cooling window (15) is bolted to the top of the fixed frame (14); a shaping fan (17) used in conjunction with the upper U-shaped plastic part (8) and the lower U-shaped plastic part (9) is bolted inside the cooling window (15); and a filter screen (16) is fixedly connected to the top of the cooling window (15).

7. The heat welding conveying device for plastic sheet processing according to claim 2, characterized in that: Both sides of the reciprocating screw rod sleeve (605) are slidably connected with limit rods (18) welded to the conveyor platform (1), and the reciprocating screw rod sleeve (605) is slidably connected to the surface of the reciprocating screw rod (603) through the limit rods (18).

8. The heat welding conveying device for plastic sheet processing according to claim 3, characterized in that: A plastic fixing plate (13) abutting against the upper half U-shaped plastic part (8) is welded to the bottom side of the plastic part fixing plate (608) away from the heater (610).

9. The heat welding conveying device for plastic sheet processing according to claim 1, characterized in that: One end of the conveyor platform (1) away from the heat welding mechanism (6) is bolted with a discharge chute (19) used in conjunction with the conveying roller (3).

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