A plate demoulding device for co-extrusion processing

Abstract

The present invention discloses a plate demoulding device for co-extrusion processing in the technical field of co-extrusion plate processing, comprising a main mounting frame, wherein the main mounting frame is provided with two groups and the two groups are symmetrically arranged, an upper mounting frame is fixedly installed between the upper ends of the main mounting frames, a lower threaded member is rotatably installed at the lower ends of the main mounting frames, a lower threaded rod is connected to the inner thread of the lower threaded member, a side connecting plate is fixedly installed at one end of the lower threaded rod, a right mold is fixedly installed between the side connecting plates on one side, and a left mold is fixedly installed between the side connecting plates on the other side, the left mold and the right mold fit each other and an injection groove is arranged on the upper surface, an upper threaded member is rotatably installed at the upper end of the upper mounting frame, the upper threaded rod is connected to the inner thread of the upper threaded member, and a mounting plate is fixed to the lower end of the upper threaded rod. The present invention provides a demoulding device for simultaneously performing plate demoulding and water outlet cutting, thereby avoiding the trouble of transporting the plate water outlet cutting operation, shortening the plate processing flow and improving the plate processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of co-extrusion plate processing, in particular to a plate demoulding device for co-extrusion processing. Background Art

[0002] The sprue refers to the joint between the frame and the parts formed when the factory casts the model. It is also called the "gate", which means the inlet and outlet for the flow of heated liquid materials.

[0003] Co-extrusion refers to a method of using two or more sets of extruders to plasticize plastics of different colors or properties and then continuously introduce them into the die head, and then contact and merge them at the entrance of the buckle die in parallel to finally form a double-layer or multi-layer co-extruded product.

[0004] In the existing mold processing and forming of large plates, the mold forming cavity and the outside are generally connected through the injection groove, which leaves a nozzle on the formed plate. Therefore, the nozzle needs to be cut off after the existing plate is processed. After demoulding, the plate needs to be transferred to a special nozzle cutting device for cutting, and then the plate is sent to the subsequent processing flow. The nozzle cutting is cumbersome, and the plate needs to be transported to the cutting device and then transported away from the cutting device. There are many operation processes and low processing efficiency. Summary of the invention

[0005] The technical problem of the present invention is to provide a plate demoulding device for co-extrusion processing, so as to provide a demoulding device that can simultaneously perform plate demoulding and nozzle cutting, thereby avoiding the trouble of plate nozzle cutting operation requiring transportation, shortening the plate processing flow and improving the plate processing efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a demoulding device for a plate material used for co-extrusion processing, comprising a main mounting frame, wherein the main mounting frame is provided with two groups and the two groups are symmetrically arranged, an upper mounting frame is fixedly installed between the upper ends of the main mounting frames, and a lower threaded member is rotatably installed at the lower ends of the main mounting frames, and a lower threaded rod is internally threadedly connected to the lower threaded member, and a side connecting plate is fixedly installed at one end of the lower threaded rod, a right mold is fixedly installed between the side connecting plates on one side, and a left mold is fixedly installed between the side connecting plates on the other side, and the left mold The upper mounting frame is fitted with the right mold and an injection groove is arranged on the upper surface. An upper threaded member is rotatably installed on the upper end of the upper mounting frame. An upper threaded rod is internally threadedly connected to a mounting plate, a mounting plate is fixedly installed on the lower end of the upper threaded rod, and an introduction rod is fixedly installed on the lower surface of the mounting plate. The lower end of the introduction rod is introduced into the injection groove. Cutting assemblies are arranged on both sides of the upper mounting frame. A transmission assembly is arranged between the upper threaded rod and the lower threaded member. The transmission assembly can automatically drive the finished plate to move up to the cutting assembly position after the left mold and the right mold are separated.

[0007] As a further solution of the present invention, the cutting assembly includes an upper positioning piece, which is fixedly mounted on both sides of the upper mounting frame, the upper end of the upper positioning piece is slidably connected to a limiting rod, the lower end of the limiting rod is fixedly mounted with a lower connecting plate, the lower end of the lower connecting plate is fixedly mounted with a resistance block, a limiting spring is fixedly mounted on the upper surface of the lower connecting plate corresponding to the position of the limiting rod, a cylinder is fixedly mounted on one side of the lower connecting plate away from the upper threaded rod, an inner movable rod is arranged in the cylinder, and a cutting piece is fixedly mounted on one end of the inner movable rod close to the upper threaded rod.

[0008] As a further solution of the present invention, a linkage plate is fixedly installed on one end of the inner movable rod away from the upper threaded rod, and a tooth plate is fixedly installed on the upper end of the linkage plate. The tooth plate is slidably connected to the upper end of the upper positioning member, and a side connecting rod is rotatably installed on the lower surface of the upper mounting frame. An upper gear is fixedly installed on the upper end of the side connecting rod, and the upper gear is meshed with the tooth plate, and a lower gear is fixedly installed on the lower end of the side connecting rod.

[0009] As a further solution of the present invention, internal threaded parts are symmetrically rotatably installed on both sides of the mounting plate, the internal threads of the internal threaded parts are connected to internal threaded rods, a push plate is fixedly installed on the lower end of the internal threaded rods, and internal gears are fixedly installed on the internal threaded parts. A connecting ring is rotatably installed on the upper surface of the mounting plate, external teeth are fixedly installed on the outer side of the connecting ring, and internal teeth are fixedly installed on the inner side of the connecting ring, the internal teeth are meshed with the internal gears, and the external teeth can mesh with the lower gear.

[0010] As a further solution of the present invention, the transmission assembly includes an upper transmission rod and a positioning rod. The upper transmission rod is rotatably mounted on the upper end of the main mounting frame. Side transmission wheels are fixedly mounted on the upper transmission rod and the lower threaded member. The outer sleeve of the vertically arranged side transmission wheel is connected to a side transmission belt.

[0011] As a further solution of the present invention, side mounting shafts are rotatably installed at both ends of the main mounting frame close to the left mold, upper bevel gears are fixedly installed at the lower ends of the side mounting shafts, and a lower bevel gear is fixedly installed at one end of the upper transmission rod close to the upper bevel gear, and the upper bevel gear is meshed with the lower bevel gear.

[0012] As a further solution of the present invention, the positioning rod is rotatably installed in the middle position of the upper surface of the main mounting frame on the side close to the left mold, an intermediate gear is fixedly installed on the lower end of the positioning rod, and a side gear is fixedly installed on the upper end of the side mounting shaft, and the side gear and the intermediate gear outer sleeve are connected with a transmission chain.

[0013] As a further solution of the present invention, a small transmission wheel is fixedly installed on the upper end of the positioning rod, and an active disk is rotatably installed on the upper mounting frame close to the end of the positioning rod, a large transmission wheel is fixedly installed on the lower end of the active disk, and the large transmission wheel and the small transmission wheel are connected with an upper transmission belt, and upper teeth are arranged on the outer side of the active disk, and a driven gear is fixedly installed on the upper end of the upper threaded member, and the driven gear can mesh with the upper teeth.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, during the cooling and forming process of the plate, the raw material injected into the groove is solidified and combined with the lower end of the introduction rod. After solidification and forming, the transmission component drives the left mold and the right mold to move to both sides respectively. During the movement of the left mold and the right mold, the plate is fixed to the lower end of the introduction rod through the water nozzle, so that the left mold and the right mold move and separate from the formed plate. After demoulding, the upper threaded member starts to rotate and drives the upper threaded rod to move upward. The upper threaded rod moves upward and drives the introduction rod to move upward. The introduction rod moves upward and drives the formed plate to move upward. The formed plate moves upward and contacts the lower end of the cutting component. The cutting components approach each other to cut the water nozzle from the upper surface of the formed plate, so that the plate automatically completes the water nozzle cutting during the demoulding process, and the formed plate is automatically positioned during the demoulding process, ensuring the success rate of demoulding, improving the speed of demoulding, avoiding the trouble of transferring the plate for water nozzle cutting, simplifying the circulation of water nozzle cutting, and improving the plate processing efficiency.

[0016] 2. In the present invention, the upward movement of the introduction rod drives the formed sheet upward until the upper surface of the formed sheet contacts the lower surface of the contact block, and then the cylinder drives the inner movable rod to move toward the water outlet, and the movable rod moves the bottom cutting piece close to the water outlet, so that the cutting piece cuts the water outlet. While the cutting piece is cutting, the inner movable rod moves and drives the tooth plate to move through the linkage plate, thereby driving the inner threaded rod to move downward and driving the push plate to move downward, and the water outlet is peeled off from the lower end of the introduction rod through the push plate. After cutting, the formed sheet automatically falls down, and the water outlet is peeled off by the inner threaded rod, so that the user can automatically drop the water outlet and the formed sheet into the collection frame under the left mold and the right mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 This is a schematic diagram of the side view structure of the present invention;

[0021] Figure 4 For the present invention Figure 3 A partial schematic diagram of the structure at B in the middle;

[0022] Figure 5 This is a schematic diagram of the structure of the present invention when viewed from the bottom up;

[0023] Figure 6 For the present invention Figure 5 A partial schematic diagram of the structure at C in the middle;

[0024] Figure 7 It is a structural cross-sectional view of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Main mounting frame; 2. Upper mounting frame; 3. Right mold; 4. Left mold; 5. Side connecting plate; 6. Lower threaded rod; 7. Lower threaded member; 8. Upper transmission rod; 9. Injection groove; 10. Side transmission belt; 11. Side transmission wheel; 12. Active plate; 13. Upper threaded rod; 14. Upper teeth; 15. Driven gear; 16. Upper threaded member; 17. Tooth plate; 18. Upper positioning member; 19. Lower connecting plate; 20. Limit rod; 21. Resistance block; 22. Cylinder; 23. Inner movable rod; 24. Cutting piece; 25, transmission chain; 26, side mounting shaft; 27, side gear; 28, upper bevel gear; 29, lower bevel gear; 30, connecting ring; 31, mounting plate; 32, internal threaded rod; 33, internal gear; 34, internal threaded piece; 35, external teeth; 36, internal teeth; 37, lower gear; 38, side connecting rod; 39, guide rod; 40, upper transmission belt; 41, small transmission wheel; 42, intermediate gear; 43, positioning rod; 44, large transmission wheel; 45, upper gear; 46, linkage plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 7The present invention provides a technical solution: a demoulding device for a plate used for co-extrusion processing, comprising a main mounting frame 1, the main mounting frame 1 is provided with two groups and the two groups are symmetrically arranged, an upper mounting frame 2 is fixedly installed between the upper ends of the main mounting frames 1, a lower threaded member 7 is rotatably installed at the lower end of each of the main mounting frames 1, a lower threaded rod 6 is internally threadedly connected to the lower threaded member 7, a side connecting plate 5 is fixedly installed at one end of the lower threaded rod 6, a right mold 3 is fixedly installed between the side connecting plates 5 on one side, a left mold 4 is fixedly installed between the side connecting plates 5 on the other side, and the left mold 4 and the right mold 3 are mutually The upper surface of the upper mounting frame 2 is fitted with an injection groove 9, an upper threaded member 16 is rotatably installed on the upper end of the upper mounting frame 2, and an upper threaded rod 13 is connected to the inner thread of the upper threaded member 16, a mounting plate 31 is fixed to the lower end of the upper threaded rod 13, and an introduction rod 39 is fixedly installed on the lower surface of the mounting plate 31, and the lower end of the introduction rod 39 is introduced into the injection groove 9, and cutting components are provided on both sides of the upper mounting frame 2, and a transmission component is provided between the upper threaded rod 13 and the lower threaded member 7, and the transmission component can automatically drive the finished plate to move up to the cutting component position after the left mold 4 and the right mold 3 are separated.

[0029] During operation, the lower end of the introduction rod 39 of the present invention is located in the middle of the injection groove 9. When the plate is processed and formed, the raw material is injected into the molding cavity of the left mold 4 and the right mold 3 through the injection groove 9, and the injected raw material overflows the molding cavity and enters the injection groove 9, and the raw material is immersed in the lower end of the introduction rod 39. During the cooling and forming process of the plate, the raw material in the injection groove 9 solidifies and combines with the lower end of the introduction rod 39. After solidification and forming, the transmission component drives the left mold 4 and the right mold 3 to move to both sides respectively (the motor drives the active disk 12 to rotate, and the rotation of the active disk 12 drives the large transmission wheel 44 to rotate, and the large transmission wheel The rotation of 44 drives the lower transmission wheel to rotate through the upper transmission belt 40, and the rotation of the lower transmission wheel drives the positioning rod 43 to rotate, and the positioning rod 43 drives the side gear 27 to rotate through the intermediate gear 42 and the transmission chain 25, and the rotation of the side gear 27 drives the side mounting shaft 26 to rotate, and the rotation of the side mounting shaft 26 drives the upper bevel gear 28 to rotate, and the rotation of the upper bevel gear 28 drives the lower bevel gear 29 to rotate, and the rotation of the lower bevel gear 29 drives the upper transmission rod 8 to rotate, and the rotation of the upper transmission rod 8 drives the lower threaded member 7 to rotate through the side transmission wheel 11 and the side transmission belt 10, and the rotation of the lower threaded member 7 interacts with the lower threaded rod 6, and the rotation of the lower threaded member 7 interacts with the lower threaded rod 6. The lower threaded rod 6 moves to drive the left mold 4 and the right mold 3 to separate to both sides). During the movement of the left mold 4 and the right mold 3, the plate is fixed to the lower end of the guide rod 39 through the sprue, so that the left mold 4 and the right mold 3 move and separate from the formed plate. After demoulding, the upper threaded member 16 starts to rotate to drive the upper threaded rod 13 to move upward (when the left mold 4 and the right mold 3 are separated to expose the formed plate completely, the upper teeth 14 of the active disk 12 start to mesh with the driven gear 15, and the driven gear 15 rotates to drive the upper threaded member 16 to rotate, and the upper threaded member 16 rotates to interact with the upper threaded rod 13, thereby driving The upper threaded rod 13 moves downward, and the upper threaded rod 13 moves downward, which drives the guide rod 39 to move downward). The upper threaded rod 13 moves upward, which drives the guide rod 39 to move upward, and the guide rod 39 moves upward, which drives the formed sheet to move upward. The formed sheet moves upward and contacts the lower end of the cutting assembly. The cutting assemblies approach each other to cut the nozzle from the upper surface of the formed sheet, so that the sheet automatically completes the nozzle cutting during the demolding process, and the formed sheet is automatically positioned during the demolding process, which ensures the success rate of demolding, improves the speed of demolding, avoids the trouble of transferring the sheet for nozzle cutting, simplifies the circulation of nozzle cutting, and improves the sheet processing efficiency.

[0030] In the present invention, during the cooling and forming process of the plate, the raw material in the injection groove 9 is solidified and combined with the lower end of the introduction rod 39. After solidification and forming, the transmission component drives the left mold 4 and the right mold 3 to move to both sides respectively. During the movement of the left mold 4 and the right mold 3, the plate is fixed to the lower end of the introduction rod 39 through the water inlet, so that the left mold 4 and the right mold 3 move and separate from the formed plate. After demolding, the upper threaded member 16 starts to rotate and drives the upper threaded rod 13 to move upward. The upper threaded rod 13 moves upward and drives the introduction rod 39 to move upward. The introduction rod 39 moves upward and drives the formed plate to move upward. The formed plate moves upward and contacts the lower end of the cutting component. The cutting components approach each other to cut the water inlet from the upper surface of the formed plate, so that the plate automatically completes the water inlet cutting during the demolding process, and the formed plate is automatically positioned during the demolding process, ensuring the success rate of demolding, improving the speed of demolding, avoiding the trouble of transferring the plate for water inlet cutting, simplifying the circulation of water inlet cutting, and improving the plate processing efficiency.

[0031] As a further solution of the present invention, the cutting assembly includes an upper positioning member 18, which is fixedly mounted on both sides of the upper mounting frame 2. The upper end of the upper positioning member 18 is slidably connected to a limiting rod 20, and a lower connecting plate 19 is fixedly mounted on the lower end of the limiting rod 20. A resistance block 21 is fixedly mounted on the lower end of the lower connecting plate 19. A limiting spring is fixedly mounted on the upper surface of the lower connecting plate 19 corresponding to the position of the limiting rod 20. A cylinder 22 is fixedly mounted on one side of the lower connecting plate 19 away from the upper threaded rod 13, and an inner movable rod 23 is arranged in the cylinder 22. A cutting member 24 is fixedly mounted on one end of the inner movable rod 23 close to the upper threaded rod 13.

[0032] During operation, the introduction rod 39 moves upward to drive the formed plate upward until the upper surface of the formed plate contacts the lower surface of the contact block 21, and then the cylinder 22 drives the inner movable rod 23 to move toward the water outlet, and the movable rod moves the bottom cutting piece 24 close to the water outlet, so that the cutting piece 24 cuts the water outlet. While the cutting piece 24 is cutting, the inner movable rod 23 moves through the linkage plate 46 (the linkage plate 46 is a telescopic plate) to drive the tooth plate 17 to move, and the tooth plate 17 drives the upper gear 45 to rotate, and the upper gear 45 rotates to drive the side connecting rod 38 to rotate, thereby driving the lower gear 37 to rotate, and the lower gear 37 rotates through the outer teeth 35 to drive the connecting ring 30 to rotate, and the connecting ring 30 rotates to drive the inner teeth 36 to rotate, and the inner teeth 36 rotates The internal gear 33 is driven to rotate, and the rotation of the internal gear 33 drives the internal threaded part 34 to rotate. The rotation of the internal threaded part 34 interacts with the internal threaded rod 32, thereby driving the internal threaded rod 32 to move downward. The downward movement of the internal threaded rod 32 drives the push plate to move downward, and the water outlet is stripped from the lower end of the introduction rod 39 by the push plate. After cutting, the formed sheet automatically falls down, and the water outlet is stripped off by the internal threaded rod 32, so that the user can automatically drop the water outlet and the formed sheet into the collection frame under the left mold 4 and the right mold 3 (the bottom of the collection frame is provided with a sieve hole, and the sieve hole allows the water outlet to pass). After cutting, the cylinder 22 resets and drives the cutting part 24 to automatically reset. At the same time, the tooth plate 17 slides in the opposite direction to drive the internal threaded rod 32 to move upward, so that the push plate is reset.

[0033] In the present invention, the introduction rod 39 moves upward to drive the formed sheet upward until the upper surface of the formed sheet hits the lower surface of the resistance block 21, and then the cylinder 22 drives the inner movable rod 23 to move toward the water outlet, and the movable rod moves the bottom cutting piece 24 close to the water outlet, so that the cutting piece 24 cuts the water outlet. While the cutting piece 24 is cutting, the inner movable rod 23 moves through the linkage plate 46 to drive the tooth plate 17 to move, thereby driving the internal threaded rod 32 to move downward and driving the push plate to move downward, and the water outlet is peeled off from the lower end of the introduction rod 39 through the push plate. After cutting, the formed sheet automatically falls down, and the water outlet is peeled off under the action of the internal threaded rod 32, so that the user can automatically drop the water outlet and the formed sheet into the collection frame below the left mold 4 and the right mold 3.

[0034] As a further solution of the present invention, a linkage plate 46 is fixedly installed on one end of the inner movable rod 23 away from the upper threaded rod 13, and a tooth plate 17 is fixedly installed on the upper end of the linkage plate 46. The tooth plate 17 is slidably connected to the upper end of the upper positioning member 18, and a side connecting rod 38 is rotatably installed on the lower surface of the upper mounting frame 2. An upper gear 45 is fixedly installed on the upper end of the side connecting rod 38, and the upper gear 45 is meshed with the tooth plate 17. The lower end of the side connecting rod 38 is fixedly installed with a lower gear 37.

[0035] As a further solution of the present invention, internal threaded parts 34 are symmetrically rotatably installed on both sides of the mounting disk 31, and the internal threaded parts 34 are connected to the internal threaded rod 32 through the internal thread, and a push plate is fixedly installed at the lower end of the internal threaded rod 32. An internal gear 33 is fixedly installed on the internal threaded parts 34, and a connecting ring 30 is rotatably installed on the upper surface of the mounting disk 31. External teeth 35 are fixedly installed on the outer side of the connecting ring 30, and internal teeth 36 are fixedly installed on the inner side of the connecting ring 30. The internal teeth 36 are meshed with the internal gear 33, and the external teeth 35 can mesh with the lower gear 37.

[0036] As a further solution of the present invention, the transmission assembly includes an upper transmission rod 8 and a positioning rod 43. The upper transmission rod 8 is rotatably mounted on the upper end of the main mounting frame 1. A side transmission wheel 11 is fixedly mounted on the upper transmission rod 8 and the lower threaded member 7. The vertically arranged side transmission wheel 11 is outer-circuited with a side transmission belt 10.

[0037] During operation, the motor drives the active disk 12 to rotate, and the rotation of the active disk 12 drives the large transmission wheel 44 to rotate. The rotation of the large transmission wheel 44 drives the lower transmission wheel to rotate through the upper transmission belt 40. The rotation of the lower transmission wheel drives the positioning rod 43 to rotate. The positioning rod 43 drives the side gear 27 to rotate through the intermediate gear 42 and the transmission chain 25. The rotation of the side gear 27 drives the side mounting shaft 26 to rotate. The rotation of the side mounting shaft 26 drives the upper bevel gear 28 to rotate. The rotation of the upper bevel gear 28 drives the lower bevel gear 29 to rotate. The rotation of the lower bevel gear 29 drives the upper transmission rod 8 to rotate. The rotation of the upper transmission rod 8 drives the lower threaded member 7 to rotate through the side transmission wheel 11 and the side transmission belt 10. The rotation of the lower threaded member 7 interacts with the lower threaded rod 6, and the movement of the lower threaded rod 6 drives the left mold 4 and the right mold 3 to separate to both sides.

[0038] As a further solution of the present invention, side mounting shafts 26 are rotatably installed at both ends of the main mounting frame 1 on the side close to the left mold 4, and upper bevel gears 28 are fixedly installed at the lower ends of the side mounting shafts 26. A lower bevel gear 29 is fixedly installed at one end of the upper transmission rod 8 close to the upper bevel gear 28, and the upper bevel gear 28 is meshed with the lower bevel gear 29.

[0039] As a further solution of the present invention, the positioning rod 43 is rotatably installed in the middle position of the upper surface of the main mounting frame 1 on the side close to the left mold 4, and the lower end of the positioning rod 43 is fixedly installed with an intermediate gear 42, and the upper end of the side mounting shaft 26 is fixedly installed with a side gear 27, and the side gear 27 and the intermediate gear 42 are outer-connected with a transmission chain 25.

[0040] As a further solution of the present invention, a small transmission wheel 41 is fixedly installed on the upper end of the positioning rod 43, and an active disk 12 is rotatably installed on one end of the upper mounting frame 2 close to the positioning rod 43. A large transmission wheel 44 is fixedly installed on the lower end of the active disk 12. The large transmission wheel 44 and the small transmission wheel 41 are outer-connected with an upper transmission belt 40. An upper tooth 14 is provided on the outer side of the active disk 12, and a driven gear 15 is fixedly installed on the upper end of the upper threaded member 16, and the driven gear 15 can mesh with the upper tooth 14.

Claims

1. A plate demoulding device for co-extrusion processing, comprising a main mounting frame (1), characterized in that: The main mounting frame (1) is provided with two groups and the two groups are symmetrically arranged. An upper mounting frame (2) is fixedly installed between the upper ends of the main mounting frames (1). A lower threaded member (7) is rotatably installed at the lower ends of the main mounting frames (1). The lower threaded member (7) is internally threadedly connected to a lower threaded rod (6). A side connecting plate (5) is fixedly installed at one end of the lower threaded rod (6). A right mold (3) is fixedly installed between the side connecting plates (5) on one side, and a left mold (4) is fixedly installed between the side connecting plates (5) on the other side. The left mold (4) and the right mold (3) fit each other and an injection groove (9) is provided on the upper surface. An upper threaded member (16) is rotatably mounted on the upper end of the frame (2), the upper threaded member (16) is internally threadedly connected to an upper threaded rod (13), a mounting plate (31) is fixedly mounted on the lower end of the upper threaded rod (13), an introduction rod (39) is fixedly mounted on the lower surface of the mounting plate (31), the lower end of the introduction rod (39) is introduced into the injection groove (9), cutting assemblies are arranged on both sides of the upper mounting frame (2), a transmission assembly is arranged between the upper threaded rod (13) and the lower threaded member (7), and the transmission assembly can automatically drive the finished plate to move up to the cutting assembly position after the left mold (4) and the right mold (3) are separated; The cutting assembly comprises an upper positioning member (18), wherein the upper positioning member (18) is fixedly mounted on both sides of the upper mounting frame (2), the upper end of the upper positioning member (18) is slidably connected to a limit rod (20), the lower end of the limit rod (20) is fixedly mounted with a lower connecting plate (19), the lower end of the lower connecting plate (19) is fixedly mounted with a resistance block (21), a limit spring is fixedly mounted on the upper surface of the lower connecting plate (19) corresponding to the position of the limit rod (20), a cylinder (22) is fixedly mounted on one side of the lower connecting plate (19) away from the upper threaded rod (13), an inner movable rod (23) is arranged in the cylinder (22), and a cutting member (24) is fixedly mounted on one end of the inner movable rod (23) close to the upper threaded rod (13); A linkage plate (46) is fixedly mounted on one end of the inner movable rod (23) away from the upper threaded rod (13); a toothed plate (17) is fixedly mounted on the upper end of the linkage plate (46); the toothed plate (17) is slidably connected to the upper end of the upper positioning member (18); a side connecting rod (38) is rotatably mounted on the lower surface of the upper mounting frame (2); an upper gear (45) is fixedly mounted on the upper end of the side connecting rod (38); the upper gear (45) is meshed with the toothed plate (17); and a lower gear (37) is fixedly mounted on the lower end of the side connecting rod (38); Internally threaded parts (34) are symmetrically rotatably mounted on both sides of the mounting plate (31); the internally threaded parts (34) are internally threadedly connected to an internally threaded rod (32); a push plate is fixedly mounted on the lower end of the internally threaded rod (32); an internal gear (33) is fixedly mounted on each of the internally threaded parts (34); a connecting ring (30) is rotatably mounted on the upper surface of the mounting plate (31); external teeth (35) are fixedly mounted on the outer side of the connecting ring (30); internal teeth (36) are fixedly mounted on the inner side of the connecting ring (30); the internal teeth (36) mesh with the internal gear (33); and the external teeth (35) can mesh with the lower gear (37); The transmission assembly comprises an upper transmission rod (8) and a positioning rod (43); the upper transmission rod (8) is rotatably mounted on the upper end of the main mounting frame (1); a side transmission wheel (11) is fixedly mounted on the upper transmission rod (8) and the lower threaded member (7); and a side transmission belt (10) is connected to the outer surface of the vertically arranged side transmission wheel (11).

2. A plate demoulding device for co-extrusion processing according to claim 1, characterized in that: Side mounting shafts (26) are rotatably mounted on both ends of the main mounting frame (1) on a side close to the left mold (4), upper bevel gears (28) are fixedly mounted on the lower ends of the side mounting shafts (26), and a lower bevel gear (29) is fixedly mounted on one end of the upper transmission rod (8) close to the upper bevel gear (28), and the upper bevel gear (28) is meshed with the lower bevel gear (29).

3. A plate demoulding device for co-extrusion processing according to claim 2, characterized in that: The positioning rod (43) is rotatably mounted at a middle position of the upper surface of the main mounting frame (1) on a side close to the left mold (4); an intermediate gear (42) is fixedly mounted on the lower end of the positioning rod (43); a side gear (27) is fixedly mounted on the upper end of each side mounting shaft (26); and a transmission chain (25) is connected to the outer sleeve of the side gear (27) and the intermediate gear (42).

4. A plate demoulding device for co-extrusion processing according to claim 3, characterized in that: A small transmission wheel (41) is fixedly mounted on the upper end of the positioning rod (43); a driving disk (12) is rotatably mounted on one end of the upper mounting frame (2) close to the positioning rod (43); a large transmission wheel (44) is fixedly mounted on the lower end of the driving disk (12); an upper transmission belt (40) is connected to the outer sleeve of the large transmission wheel (44) and the small transmission wheel (41); upper teeth (14) are arranged on the outer side of the driving disk (12); a driven gear (15) is fixedly mounted on the upper end of the upper threaded member (16); and the driven gear (15) is capable of meshing with the upper teeth (14).

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