A plastic product production equipment for producing composite plastics

Abstract

The present invention relates to the technical field of plastic product production, and in particular to a plastic product production equipment for composite plastic production, comprising a machine, a plurality of conveyor rollers and an inflation component, one side of the machine is rotatably connected to a bidirectional screw, the other side of the machine is fixedly connected to a fixed rod, two hot pressing components are arranged between the bidirectional screw and the fixed rod, each of the hot pressing components comprises a hot pressing frame, both sides of the hot pressing frame are fixedly connected to sliders, the two sliders are respectively connected to the fixed rod and the bidirectional screw, wherein the two sliders are connected to a sliding rod through a first spring, and each of the sliding rods is fixedly connected to an ear plate and a hot pressing plate. The present invention can perform continuous hot pressing, inflation and sealing treatments on packaging plastic film, and the continuity of packaging plastic film production is good, so that the production efficiency of packaging plastic film is high, which is beneficial to the production of packaging plastic film.

Description

Technical Field

[0001] The invention relates to the technical field of plastic product production, and in particular to a plastic product production device for producing composite plastics. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technologies related to the production of plastic products are also constantly improving. The comprehensive performance of composite plastics is better. At present, many plastic products are made of composite plastic materials, including plastic films. The packaging plastic films made of composite plastic materials need to be processed by extrusion molding, hot pressing, inflation and sealing production equipment during production.

[0003] In order to improve the heat insulation effect of the packaging plastic film, an appropriate amount of gas can be filled into the packaging plastic film. At present, during the production process of the gas-filled packaging plastic film, the packaging plastic film is mostly first subjected to heat pressing treatment and an inflation port is reserved. Then, the packaging plastic film with the reserved inflation port is moved to the inflation place for inflation first, and finally sealed. The continuity of the packaging plastic film during production is poor, resulting in low production efficiency of the packaging plastic film, which is not conducive to the production of the packaging plastic film. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art. At present, in the production process of gas-filled packaging plastic film, the packaging plastic film is mostly first subjected to heat pressing treatment and an inflation port is reserved. Then the packaging plastic film with the reserved inflation port is moved to the inflation place for inflation first, and finally sealed. The continuity of the packaging plastic film production is poor, which leads to low production efficiency of the packaging plastic film, which is not conducive to the production of packaging plastic film. A plastic product production equipment for composite plastic production is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A plastic product production equipment for composite plastic production, comprising a machine platform, a plurality of conveying rollers and an inflation component, one side of the machine platform is rotatably connected to a bidirectional screw rod, the other side of the machine platform is fixedly connected to a fixed rod, two hot pressing components are arranged between the bidirectional screw rod and the fixed rod, each of the hot pressing components comprises a hot pressing frame, both sides of the hot pressing frame are fixedly connected to sliders, the two sliders are respectively connected to the fixed rod and the bidirectional screw rod, wherein the two sliders are connected to the sliding rod via a first spring, and each of the sliding rods is fixedly connected to an ear plate and a hot pressing plate;

[0007] Rectangular plates are fixedly connected to the inner surfaces of both sides of each hot pressing frame, and a rotating assembly is provided on each rectangular plate, wherein the rotating assembly comprises a rotating shaft rotatably mounted on the rectangular plate, and a first rotating plate is fixedly connected to the rotating shaft, and a slide groove is provided on each ear plate, and two moving blocks are slidably connected in the slide groove, and a round rod is rotatably connected to one side of each moving block, and the round rod is rotatably connected to the corresponding first rotating plate;

[0008] It also includes two pressing assemblies, which are respectively mounted on the two heat pressing frames, and each of the pressing assemblies includes a plurality of heat pressing blocks.

[0009] As a preferred solution, each of the pressing components also includes two horizontal plates fixedly mounted on the inner surfaces of the corresponding hot pressing frames, each of the horizontal plates is slidably connected to a plurality of vertical rods, each of the vertical rods is sleeved with a first return spring, one end of the first return spring is fixedly connected to the corresponding vertical rod, the other end of the first return spring is fixedly connected to the horizontal plate, and one end of each of the vertical rods is fixedly connected to the corresponding hot pressing block.

[0010] As a preferred solution, each of the rotating shafts is fixedly connected to a second rotating plate, and a plurality of the second rotating plates are symmetrically arranged.

[0011] As a preferred solution, limiting grooves are provided on the inner surfaces of both sides of each of the hot pressing frames, and each of the limiting grooves is connected to a mounting plate via a second reset spring. A plurality of extrusion rods with successively decreasing lengths are slidably connected to the mounting plate, and each of the extrusion rods is sleeved with a second spring, one end of the second spring is fixedly connected to the extrusion rod, and the other end of the second spring is fixedly connected to the mounting plate.

[0012] As a preferred solution, a support plate is fixedly connected to one side of the machine, a hydraulic cylinder is fixedly arranged on the support plate, the inflation assembly includes an air storage cylinder fixedly arranged on the support plate, an air pump is installed on the air storage cylinder, the air pump is connected to an inflation tube via a bellows, and the driving end of the hydraulic cylinder is fixedly connected to one end of the inflation tube.

[0013] As a preferred solution, a conical sleeve is fixedly connected to the inflation tube, and a first fixed block and a second fixed block are respectively fixedly installed on one side of the two hot pressing plates, and the second fixed block is provided with a groove for connecting the first fixed block, and the cross-sections of the first fixed block and the second fixed block are both L-shaped.

[0014] As a preferred solution, two brackets are fixedly connected to the machine, each of the brackets is slidably connected to a sliding frame, a third spring is sleeved on the sliding frame, one end of the third spring is fixedly connected to the sliding frame, the other end of the third spring is fixedly connected to the bracket, and a plurality of punching needles are fixedly connected to one side surface of the sliding frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When one end of the inflation tube is taken out from between the two layers of plastic film, the conical sleeve moves to the outside of the first fixing block and the second fixing block at the same time. Under the elastic force of the first spring, one end of the first fixing block is quickly inserted into the groove of the second fixing block. The two hot pressing plates are in close contact with the two layers of plastic film at the same time, so as to seal the two layers of plastic film, and the secondary hot pressing treatment of the edge can be achieved, which can effectively avoid the phenomenon of air leakage, does not need to be driven by other power components, saves energy, and can continuously perform hot pressing, inflation and sealing treatment on the packaging plastic film made of composite plastic. The continuity of the packaging plastic film production is good, so that the production efficiency of the packaging plastic film is high, which is conducive to the production of the packaging plastic film.

[0017] The hot pressing block near the edge of the plastic film is first in close contact with the plastic film, and the hot pressing block near the middle of the edge of the plastic film is in close contact with the plastic film last, so that the hot pressing block approaches the middle from both ends of the edge at the same time and performs hot pressing treatment. The hot pressing trajectory is relatively stable, and it can effectively prevent large wrinkles from appearing at the hot pressing treatment of the plastic film, thereby preventing inflation from deforming the plastic film after hot pressing treatment, and the hot pressing treatment effect on the plastic film is better.

[0018] After the punching needles on each sliding rack move, they can puncture the hot-pressed parts between two adjacent inflatable packaging plastic films. The punching needles on the two sliding racks are staggered to form an ant line between two adjacent inflatable packaging plastic films. The two adjacent inflatable packaging plastic films can be easily torn apart, and there is no need to use tools to separate the two adjacent inflatable packaging plastic films, thereby ensuring the use of the inflatable packaging plastic films. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front structure of a plastic product production equipment for producing composite plastics proposed by the present invention;

[0020] Figure 2 It is a partial right side structural schematic diagram of a plastic product production equipment for producing composite plastics proposed by the present invention;

[0021] Figure 3 It is a partial left-view structural schematic diagram of a plastic product production equipment for producing composite plastics proposed by the present invention;

[0022] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the back side of the hot pressing frame in the present invention;

[0023] Figure 5 It is a partial top view structural schematic diagram of the hot pressing frame and the ear plate in the present invention;

[0024] Figure 6 It is a partial top view structural schematic diagram of the middle ear plate and the extrusion rod of the present invention;

[0025] Figure 7 It is a partial top view structural schematic diagram of the hot pressing block and the mounting plate in the present invention;

[0026] Figure 8 This is a partial top view structural schematic diagram of a plastic product production equipment produced by composite plastics proposed by the present invention;

[0027] Fig. 9 for Figure 8 A is a schematic diagram of the partially enlarged structure of the middle part;

[0028] Fig.10 This is a left-side structural schematic diagram of a plastic product production equipment for producing composite plastics proposed by the present invention;

[0029] Fig.11 This is a right side structural schematic diagram of a plastic product production equipment for producing composite plastics proposed by the present invention.

[0030] In the figure: 1 machine, 2 hydraulic cylinder, 3 inflation tube, 4 conical sleeve, 5 hot pressing frame, 6 sliding frame, 7 bracket, 8 third spring, 9 punching needle, 10 bidirectional screw rod, 11 slider, 12 support plate, 13 air storage cylinder, 14 fixed rod, 15 conveying roller, 16 hot pressing plate, 17 first fixed block, 18 sliding rod, 19 second fixed block, 20 first rotating plate, 21 extrusion rod, 22 second spring, 23 hot pressing block, 24 rectangular plate, 25 horizontal plate, 26 mounting plate, 27 ear plate, 28 rotating shaft, 29 second rotating plate, 30 round rod, 31 moving block, 32 slide groove, 33 vertical rod, 34 limit groove, 35 first spring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-Figure 11A plastic product production equipment for composite plastic production includes a machine 1, a plurality of conveyor rollers 15 and an inflatable component. A bidirectional screw rod 10 is rotatably connected to one side of the machine 1, and a fixed rod 14 is fixedly connected to the other side of the machine 1. Two hot pressing components are arranged between the bidirectional screw rod 10 and the fixed rod 14. Each hot pressing component includes a hot pressing frame 5. Both sides of the hot pressing frame 5 are fixedly connected with a slider 11. The two sliders 11 are respectively connected to the fixed rod 14 and the bidirectional screw rod 10. The two sliders 11 are connected to the sliding rod 18 through a first spring 35. Each sliding rod 18 is fixedly connected to an ear plate 27 and a hot pressing plate 16. The inner surfaces of both sides of each hot pressing frame 5 are A rectangular plate 24 is fixedly connected, and each rectangular plate 24 is provided with a rotating component, the rotating component includes a rotating shaft 28 rotatably installed on the rectangular plate 24, and a first rotating plate 20 is fixedly connected to the rotating shaft 28, and each ear plate 27 is provided with a slide groove 32, and two moving blocks 31 are slidably connected in the slide groove 32, and one side of each moving block 31 is rotatably connected to a round rod 30, and the round rod 30 is rotatably connected to the corresponding first rotating plate 20, and also includes two pressing assemblies, which are respectively installed on two hot pressing frames 5, and each pressing assembly includes multiple hot pressing blocks 23, and each hot pressing block 23, the hot pressing plate 16 and the hot pressing frame 5 are provided with an electric heating block.

[0033] Each pressing assembly also includes two cross plates 25 fixedly mounted on the inner surface of the corresponding hot pressing frame 5, each cross plate 25 is slidably connected with a plurality of vertical rods 33, each vertical rod 33 is sleeved with a first return spring, one end of the first return spring is fixedly connected to the corresponding vertical rod 33, the other end of the first return spring is fixedly connected to the cross plate 25, one end of each vertical rod 33 is fixedly connected to the corresponding hot pressing block 23, each rotating shaft 28 is fixedly connected with a second rotating plate 29, and a plurality of second rotating plates 29 are symmetrically arranged, and limiting grooves 34 are provided on the inner surfaces of both sides of each hot pressing frame 5, each limiting groove 34 is connected with a mounting plate 26 through a second return spring, and a plurality of extrusion rods 21 of decreasing lengths are slidably connected to the mounting plate 26, and each extrusion rod 21 is sleeved with a second spring 22, one end of the second spring 22 is fixedly connected to the extrusion rod 21, and the other end of the second spring 22 is fixedly connected to the mounting plate 26.

[0034] During the rotation of the second rotating plate 29, it moves against the surface of the corresponding mounting plate 26, and the mounting plate 26 slides in the limiting groove 34 at the same time. The second return spring is deformed, and the distance between the mounting plate 26 and the cross plate 25 increases. After each extrusion rod 21 moves with the mounting plate 26, it will gradually separate from the vertical rod 33. The two second rotating plates 29 rotate in the opposite direction and gradually separate from the surface of the mounting plate 26. Under the elastic force of the second return spring, the mounting plate 26 slides in the limiting groove 34 at the same time, and the mounting plate 26 and the cross plate As the distance between the two hot pressing blocks 23 and the upper and lower plastic films is reduced, the extrusion rods 21 whose distance from the inner surface of the hot pressing frame 5 decreases from near to far move at the same time. During the movement of the extrusion rods 21 with different lengths, they will contact the end faces of the vertical rods 33 in turn and squeeze the vertical rods 33, so that the vertical rods 33 and the cross plate 25 slide relative to each other. When the two facing hot pressing blocks 23 are respectively in close contact with the upper and lower layers of plastic film, the extrusion rods 21 continue to squeeze the vertical rods 33, and the extrusion rods 21 will slide relative to the mounting plate 26, and the second spring 22 will be deformed.

[0035] A support plate 12 is fixedly connected to one side of the machine 1, and a hydraulic cylinder 2 is fixedly arranged on the support plate 12. The inflation component includes an air storage cylinder 13 fixedly arranged on the support plate 12, and an air pump is installed on the air storage cylinder 13. The air pump is connected to the inflation tube 3 through a bellows, and the driving end of the hydraulic cylinder 2 is fixedly connected to one end of the inflation tube 3, and a conical sleeve 4 is fixedly connected to the inflation tube 3. A first fixed block 17 and a second fixed block 19 are respectively fixedly installed on one side of the two hot pressing plates 16, and a groove for connecting the first fixed block 17 is provided on the second fixed block 19. The cross-sections of the first fixed block 17 and the second fixed block 19 are both L-shaped. Under the suction action of the air pump, the gas inside the air storage cylinder 13 can be transported to the two layers of plastic film to inflate the two layers of plastic film.

[0036] The hydraulic cylinder 2 slowly pulls the inflation tube 3 outward. During the movement of the inflation tube 3 toward the outside of the two layers of plastic film, under the elastic force of the first spring 35, the end faces of the first fixed block 17 and the second fixed block 19 are always in contact with the arc surface of the tapered sleeve 4, and the distance between the first fixed block 17 and the second fixed block 19 gradually decreases. When the tapered sleeve 4 moves to the outside of the first fixed block 17 and the second fixed block 19, under the elastic force of the first spring 35, one end of the first fixed block 17 will be quickly inserted into the groove of the second fixed block 19.

[0037] Two brackets 7 are fixedly connected to the machine 1, and each bracket 7 is slidably connected to a sliding frame 6. A third spring 8 is sleeved on the sliding frame 6, one end of the third spring 8 is fixedly connected to the sliding frame 6, and the other end of the third spring 8 is fixedly connected to the bracket 7. A plurality of punching needles 9 are fixedly connected to the surface of one side of the sliding frame 6. After the distance between the two hot pressing frames 5 is reduced, under the elastic force of the third spring 8, the distance between the two sliding frames 6 is reduced at the same time. After the punching needles 9 on each sliding frame 6 move, the hot pressing treated portion between two adjacent inflatable packaging plastic films can be punctured.

[0038] The production method of packaging plastic film comprises the following steps:

[0039] S1: Two layers of plastic film pass through between two heat pressing frames 5;

[0040] S2: The servo motor drives the bidirectional screw 10 to rotate, thereby reducing the distance between the two heat pressing frames 5, and the concave surfaces of the two heat pressing frames 5 perform heat pressing treatment on the three sides of the two layers of plastic film;

[0041] S3: The inflation tube 3 inflates the plastic film, and the hydraulic cylinder 2 slowly pulls the inflation tube 3 outward at the same time, and each hot pressing block 23 performs hot pressing treatment from the edge to the center position in turn;

[0042] S4: the inflation tube 3 is completely moved to the outside of the two layers of plastic film, the two hot pressing plates 16 perform heat-pressing and sealing treatment on the two layers of plastic film to form an inflatable packaging film, and the punching needle 9 performs puncture treatment on the heat-pressed portion between two adjacent inflatable packaging plastic films.

[0043] In the present invention, when in use, the two layers of plastic film are driven by a motor for synchronous intermittent transmission, and the two layers of plastic film pass through the two conveying rollers 15 on the left, between the two heat pressing frames 5, and between the two sliding frames 6 in sequence, and finally pass through the two conveying rollers 15 on the right. In the initial state, one end of the inflation tube 3 is located between the two layers of plastic film, and the conical sleeve 4 is located on the outside of the two layers of plastic film. The servo motor drives the bidirectional screw 10 to rotate. Since the slider 11 on one side of the heat pressing frame 5 is threadedly connected to the bidirectional screw 10, and the slider 11 on the other side of the heat pressing frame 5 is threadedly connected to the fixed rod 14, under the transmission action of the bidirectional screw 10, each slider 11 will move along the fixed rod 14 and the bidirectional screw 10 respectively, and the distance between the two heat pressing frames 5 is reduced.

[0044] As the two heat press frames 5 approach each other, the facing end faces of the first fixed block 17 and the second fixed block 19 will contact the surface of the conical sleeve 4 at the same time. At this time, the distance between the two heat press frames 5 is small. As the distance between the two heat press frames 5 continues to decrease, under the transmission action of the first fixed block 17 and the second fixed block 19, the two heat press plates 16 slide relative to the corresponding heat press frames 5 respectively. Under the transmission action of the two heat press plates 16, each slide bar 18 slides relative to the corresponding slide block 11. Since one end of the first spring 35 is fixedly connected to the slide bar 18 and the other end is fixedly connected to the slide block 11, the first spring 35 is deformed. As each ear plate 27 moves with the slide bar 18, the ear plate 27 and the rectangular plate 24 are deformed. The vertical distance increases at the same time, the two moving blocks 31 will slide in the slide groove 32, and the distance between the two moving blocks 31 increases, and each first rotating plate 20 rotates relative to the corresponding rectangular plate 24 at the same time. Under the transmission action of the rotating shaft 28, each second rotating plate 29 rotates at the same time. During the rotation of the second rotating plate 29, it will move against the surface of the corresponding mounting plate 26, and the mounting plate 26 slides in the limiting groove 34 at the same time. Since one end of the second return spring is fixedly connected to the mounting plate 26, and the other end is fixedly connected to the inner wall of the limiting groove 34, the second return spring is deformed, and the distance between the mounting plate 26 and the cross plate 25 increases. After each extrusion rod 21 moves with the mounting plate 26, it will gradually separate from the vertical rod 33.

[0045] The two hot pressing frames 5 are arranged in a concave shape on the surfaces facing each other. After the two hot pressing frames 5 are close to and in close contact with the two layers of plastic film, the three sides of the two layers of plastic film can be hot pressed. The two hot pressing frames 5 stop moving. At this time, the two hot pressing plates 16 are not in contact with the two layers of plastic film, and one end of the inflation tube 3 is located between the two layers of plastic film. Under the suction effect of the air pump, the internal gas of the air storage cylinder 13 can be transported into the two layers of plastic film to inflate the two layers of plastic film. When a certain amount of gas is filled between the two layers of plastic film, the inflation tube 3 continues to inflate the two layers of plastic film. Air is inflated between the films, and the hydraulic cylinder 2 slowly pulls the inflation tube 3 outward at the same time. During the movement of the inflation tube 3 toward the outside of the two layers of plastic film, under the elastic force of the first spring 35, the end faces of the first fixed block 17 and the second fixed block 19 are always in contact with the arc surface of the conical sleeve 4, and the distance between the first fixed block 17 and the second fixed block 19 gradually decreases, and the distance between the two ear plates 27 decreases at the same time, and the distance between the ear plate 27 and the corresponding rectangular plate 24 also decreases, the two first rotating plates 20 rotate at the same time, and the distance between the two moving blocks 31 decreases.

[0046] Under the transmission action of the rotating shaft 28, the two second rotating plates 29 rotate in the opposite direction and gradually separate from the surface of the mounting plate 26. Under the elastic force of the second return spring, the mounting plate 26 slides inside the limiting groove 34 at the same time, and the distance between the mounting plate 26 and the cross plate 25 is reduced. The extrusion rods 21 whose distances from the inner surface of the hot pressing frame 5 decrease from near to far move at the same time. During the movement of the extrusion rods 21 with different lengths, they will contact the end faces of the vertical rods 33 in turn and squeeze the vertical rods 33, so that the vertical rods 33 and the cross plate 25 slide relative to each other. Since one end of the first return spring is fixedly connected to the vertical rod 33, and the other end is fixed to the cross plate 25 After the fixed connection, the first return spring is deformed, and after each vertical rod 33 moves, the surface of the heat pressing block 23 will be in close contact with the surface of the plastic film, and then the last side of the plastic film will be hot-pressed, and the heat pressing block 23 close to the edge of the plastic film will be in close contact with the plastic film first, and the heat pressing block 23 close to the middle position of the edge of the plastic film will be in close contact with the plastic film last, so as to achieve the approach from both ends of the edge to the middle position and perform the heat pressing treatment at the same time, and the hot pressing trajectory is relatively stable, and can effectively prevent large wrinkles from appearing at the hot pressing treatment of the plastic film, thereby preventing the inflation from deforming the plastic film after the hot pressing treatment, and the hot pressing effect on the plastic film is better.

[0047] When one end of the inflation tube 3 is taken out from between the two layers of plastic film, the conical sleeve 4 moves to the outside of the first fixed block 17 and the second fixed block 19 at the same time. Under the elastic force of the first spring 35, one end of the first fixed block 17 will be quickly inserted into the groove of the second fixed block 19. At this time, the two hot pressing plates 16 are in close contact with the two layers of plastic film at the same time, and then the two layers of plastic film are hot-pressed and sealed, which can effectively avoid air leakage. The packaging plastic film can be continuously hot-pressed, inflated and sealed, and the continuity of the packaging plastic film production is better, so that the production efficiency of the packaging plastic film is higher, which is beneficial to the production of the packaging plastic film.

[0048] In the initial state, the surface of each sliding frame 6 is in close contact with the surface of the corresponding hot pressing frame 5. After the distance between the two hot pressing frames 5 is reduced, under the elastic force of the third spring 8, the distance between the two sliding frames 6 is reduced at the same time. After the punching needles 9 on each sliding frame 6 move, the hot pressing treated part between two adjacent inflatable packaging plastic films can be punctured. The punching needles 9 on the two sliding frames 6 are staggered to form an ant line between two adjacent inflatable packaging plastic films. The two adjacent inflatable packaging plastic films can be easily torn apart, and there is no need to use tools to separate the two adjacent inflatable packaging plastic films, which facilitates the use of the plastic films.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic product production equipment for composite plastic production, characterized in that: The machine comprises a machine platform (1), a plurality of conveying rollers (15), and an inflation component. One side of the machine platform (1) is rotatably connected to a bidirectional screw rod (10), and the other side of the machine platform (1) is fixedly connected to a fixed rod (14). Two hot pressing components are arranged between the bidirectional screw rod (10) and the fixed rod (14). Each of the hot pressing components comprises a hot pressing frame (5). Both sides of the hot pressing frame (5) are fixedly connected to sliders (11). The two sliders (11) are respectively connected to the fixed rod (14) and the bidirectional screw rod (10). The two sliders (11) are connected to a sliding rod (18) via a first spring (35), and each of the sliding rods (18) is fixedly connected to an ear plate (27) and a hot pressing plate (16). Rectangular plates (24) are fixedly connected to the inner surfaces of both sides of each of the hot pressing frames (5); each of the rectangular plates (24) is provided with a rotating assembly, the rotating assembly comprising a rotating shaft (28) rotatably mounted on the rectangular plate (24); a first rotating plate (20) is fixedly connected to the rotating shaft (28); each of the ear plates (27) is provided with a sliding groove (32); two moving blocks (31) are slidably connected in the sliding groove (32); one side of each of the moving blocks (31) is rotatably connected to a round rod (30); the round rod (30) is rotatably connected to the corresponding first rotating plate (20); The invention also comprises two pressing assemblies, the two pressing assemblies are respectively mounted on the two heat pressing frames (5), each pressing assembly comprises a plurality of heat pressing blocks (23), each pressing assembly comprises two horizontal plates (25) fixedly mounted on the inner surface of the corresponding heat pressing frame (5), each horizontal plate (25) is slidably connected to a plurality of vertical rods (33), each vertical rod (33) is sleeved with a first return spring, one end of the first return spring is fixedly connected to the corresponding vertical rod (33), and the first return spring is The other end is fixedly connected to the horizontal plate (25), one end of each of the vertical rods (33) is fixedly connected to the corresponding hot pressing block (23), each of the rotating shafts (28) is fixedly connected to a second rotating plate (29), and a plurality of the second rotating plates (29) are symmetrically arranged, and both sides of the inner surface of each of the hot pressing frames (5) are provided with limiting grooves (34), each of the limiting grooves (34) is connected to a mounting plate (26) via a second return spring, and a plurality of extrusion springs of decreasing lengths are slidably connected to the mounting plate (26). A pressure rod (21), each of the pressure rods (21) is sleeved with a second spring (22), one end of the second spring (22) is fixedly connected to the pressure rod (21), and the other end of the second spring (22) is fixedly connected to the mounting plate (26); one side of the machine platform (1) is fixedly connected to a support plate (12), a hydraulic cylinder (2) is fixedly arranged on the support plate (12), and the inflation assembly comprises an air storage cylinder (13) fixedly arranged on the support plate (12), and an air cylinder (2) is installed on the air storage cylinder (13). The air pump is connected to an air filling pipe (3) via a bellows, a driving end of the hydraulic cylinder (2) is fixedly connected to one end of the air filling pipe (3), a conical sleeve (4) is fixedly connected to the air filling pipe (3), a first fixing block (17) and a second fixing block (19) are respectively fixedly mounted on one side of the two hot pressing plates (16), a groove for connecting the first fixing block (17) is provided on the second fixing block (19), and the cross-sections of the first fixing block (17) and the second fixing block (19) are both L-shaped.

2. The plastic product production equipment for composite plastic production according to claim 1, characterized in that: Two brackets (7) are fixedly connected to the machine platform (1), each of the brackets (7) is slidably connected to a sliding frame (6), a third spring (8) is sleeved on the sliding frame (6), one end of the third spring (8) is fixedly connected to the sliding frame (6), and the other end of the third spring (8) is fixedly connected to the bracket (7), and a plurality of punching needles (9) are fixedly connected to a surface of one side of the sliding frame (6).

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