Injection molding part forming device for plastic tray production

By integrating feeding, cutting and unloading processes into an injection molding device, the waste material of finished plastic pallets can be automatically removed, solving the problem of time-consuming and labor-intensive manual cutting and improving production efficiency and product quality.

CN122379002APending Publication Date: 2026-07-14SUQIAN ANSU NEW MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-22
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In current plastic pallet production, excess plastic residue often remains on the surface of finished products, affecting their appearance and performance. Manual removal is time-consuming and labor-intensive, resulting in low production efficiency and unstable product quality.

Method used

Design an injection molding device that integrates feeding, cutting and unloading processes. The device uses a clamping component to fix the excess material and a cutting component to automatically remove it, thereby achieving mechanized and precise removal of the excess material.

Benefits of technology

It improves the level of production automation, simplifies the operation process, ensures product consistency and surface cleanliness, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of injection molding part forming devices for plastic tray production, more particularly to injection molding part forming device technical field, including receiving plate, the receiving plate upper end four corners are all fixedly connected with support rod, four The upper end of support rod is fixedly connected with operating table, the operating table upper end front side is fixedly connected with vertical plate, the vertical plate rear end is fixedly installed with forming assembly, the receiving plate upper end middle part is slidably installed with feeding assembly, the receiving plate upper end left side and right side are slidably installed with cutting assembly.The injection molding part forming device for plastic tray production, by the linkage design of feeding assembly and cutting assembly, after forming mold opening, can utilize clamping assembly fixed surplus material and move back, while triggering two sides cutting assembly automatic folding, utilize the cooperation of rectangular cutting plate and clamping groove, realize the mechanized accurate cutting of surplus material around plastic tray finished product, without manual intervention, significantly improve production automation degree and processing efficiency.
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Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, and in particular to an injection molding equipment for producing plastic pallets. Background Technology

[0002] The injection molding equipment for producing plastic pallets mainly involves recycling waste plastics, processing them, and then using blow molding to produce plastic pallets. The core processes of this equipment include the recycling, cleaning, melting, injection molding, and blow molding of waste plastics, ultimately producing plastic pallets that meet the requirements. Waste plastics are usually collected, crushed, and cleaned through a recycling system to remove impurities, and then melted through a heating system to form molten plastic that can be blow molded.

[0003] In the actual production process, waste plastics are melted and injected into molds, and then expanded and pressed against the mold wall through a blow molding process. Finally, they are cooled and formed into plastic pallets. Blow molding gives plastic pallets a hollow structure, which is suitable for stacking and load-bearing. They are ideal materials for logistics and warehousing. The device has a high level of automation, which can not only reprocess waste plastics, but also significantly reduce raw material costs and improve production efficiency.

[0004] However, in the existing technology, although the molding of plastic pallets can be completed smoothly, after the finished product is produced, there is often excess plastic residue left on the surface of the pallet. This residue usually affects the appearance and performance of the finished product and needs to be removed manually. However, manually removing this excess plastic is not only time-consuming and labor-intensive, but also increases production costs. Furthermore, due to the uncertainty of manual operation, it may affect the overall quality and consistency of the product, resulting in a significant reduction in processing efficiency. Summary of the Invention

[0005] The main objective of this invention is to provide an injection molding apparatus for producing plastic pallets, which can effectively solve the problems in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A molding apparatus for injection molding plastic pallets includes a receiving plate. Support rods are fixedly connected to the four corners of the upper end of the receiving plate. An operating table is fixedly connected to the upper end of the four support rods. A vertical plate is fixedly connected to the front side of the upper end of the operating table. A support frame is fixedly connected to the upper end of the vertical plate. A cover plate is fixedly connected to the upper end of the support frame. A plastic extrusion mechanism is fixedly installed at the lower end of the cover plate. The output end of the plastic extrusion mechanism passes through the lower end of the support frame. A molding component is fixedly installed at the rear end of the vertical plate. A feeding component is slidably installed in the middle of the upper end of the receiving plate. Cutting components are slidably installed on the left and right sides of the upper end of the receiving plate.

[0008] Preferably, a material discharge port is provided on the front side of the middle of the upper end of the receiving plate, and a limiting groove 1 is provided on the left and right sides of the upper end of the receiving plate. The two limiting grooves 1 are respectively located on the left and right sides of the material discharge port. A limiting groove 2 is provided on the middle of the left side and the middle of the right side of the upper end of the receiving plate. The limiting groove 2 on the same side is connected to the limiting groove 1 on the same side.

[0009] Preferably, the molding assembly includes a fixed platform fixedly connected to the lower right end of the vertical plate. A motor is fixedly connected to the upper end of the fixed platform. An installation groove is provided in the middle of the rear end of the vertical plate. A bidirectional threaded rod is rotatably connected to the middle of the right side wall of the inner surface of the installation groove. The right end of the bidirectional threaded rod passes through the left side wall of the inner surface of the installation groove and is fixedly connected to the output end of the motor through a coupling. Two protrusions are threadedly connected to the outer surface of the bidirectional threaded rod. The outer surfaces of the two protrusions are slidably connected to the inner surface of the installation groove. A main mold is fixedly connected to the rear end of the protrusion on the right side, and a secondary mold is fixedly connected to the rear end of the protrusion on the left side.

[0010] Preferably, the feeding assembly includes a rectangular platform fixedly connected to the middle of the rear side of the upper end of the operating platform. A hydraulic cylinder is fixedly connected to the upper end of the rectangular platform. A push rod is fixedly connected to the output end of the hydraulic cylinder through a piston rod. A hollow cylinder is slidably connected to the outer surface of the push rod. A spring is fixedly connected to the front end of the push rod and the rear side wall of the inner surface of the hollow cylinder. A clamping assembly is fixedly installed at the front end of the hollow cylinder.

[0011] Preferably, the clamping assembly includes a mounting plate fixedly connected to the front end of the cavity cylinder. Two support plates are fixedly connected to the upper and lower sides of the front end of the mounting plate. Two bidirectional threaded rods are rotatably connected to the front and rear sides of the two support plates on the upper side and the two support plates on the lower side. Two clamping plates are threadedly connected to the outer surfaces of the two bidirectional threaded rods on the upper side and the two bidirectional threaded rods on the lower side. Pulleys are fixedly connected to the left side of the outer surfaces of the two bidirectional threaded rods on the upper side and the two bidirectional threaded rods on the lower side. A side plate is fixedly connected to the left side of the rear end of the mounting plate. A side platform is fixedly connected to the upper left end of the side plate. A motor is fixedly connected to the upper end of the side platform. A transmission column is rotatably connected to the upper right end and the lower right end of the side plate. The output end of the motor is fixedly connected to the left end of the transmission column on the upper side via a coupling. A through groove is provided on the left side of the rear end of the mounting plate. The through groove is located on the right side of the side plate. The outer surfaces of the two pulleys on the same side are connected via belt drive.

[0012] Preferably, pulley two is fixedly connected to the front side of the outer surface of the bidirectional threaded rod two located at the upper rear side and the front side of the outer surface of the bidirectional threaded rod two located at the lower rear side. The pulley two on the same side is located to the right of the pulley one on the same side. The outer surfaces of the two transmission columns are fixedly connected to pulley three. The outer surfaces of the two pulley two and the two pulley three are connected by belt drive.

[0013] Preferably, the receiving plate is fixedly connected with a stop block on the left side of the upper middle part and the right side of the upper middle part, and the two stop blocks are respectively located at the edge of the material discharge port.

[0014] Preferably, the cutting assembly includes a horizontal plate with a fixing hole at the center of its front end. The inner surface of the fixing hole is fixedly connected to the outer surface of the push rod. Extension rods are fixedly connected to the lower left and lower right sides of the horizontal plate. Connecting plates are fixedly connected to the lower sides of the two extension rods at their opposite ends. The lower sides of the outer surfaces of the two connecting plates are slidably connected to the inner surface of the first limiting groove on the same side. Racks are fixedly connected to the lower ends of the two connecting plates. The lower ends of the two racks are slidably connected to the bottom wall of the first limiting groove on the same side. Guide blocks are slidably connected to the inner surfaces of the two second limiting grooves. L-shaped plates are fixedly connected to the upper ends of the two guide blocks. A main clamping block is fixedly connected to the left end of the vertical portion of the right L-shaped plate, and a secondary clamping block is fixedly connected to the right end of the vertical portion of the left L-shaped plate.

[0015] Preferably, a rectangular cutting plate is fixedly connected to the outer surface of the main clamping block, and a clamping plate is fixedly connected to the outer surface of the secondary clamping block. The clamping plate has a clamping groove at its right end that matches the rectangular cutting plate.

[0016] Preferably, the inner surfaces of the two guide blocks are threaded with one-way threaded rods, and the left and right ends of the two one-way threaded rods are respectively rotatably connected to the left side wall and the right side wall of the inner surface of the limiting groove on the same side. The outer surfaces of the two one-way threaded rods are fixedly connected with gears on the side that are close to each other, and the gears on the same side mesh with the rack on the same side.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This invention, through the linkage design of the feeding component and the cutting component, allows the clamping component to fix the excess material and move it backward after molding and mold opening. At the same time, it triggers the automatic closing of the cutting components on both sides. By using the cooperation of the rectangular cutting plate and the clamping groove, the mechanical and precise removal of the excess material around the finished plastic pallet is achieved without manual intervention, which significantly improves the degree of production automation and processing efficiency.

[0019] 2. This invention integrates the forming, feeding, cutting and unloading processes into one unit. The reciprocating motion of the push rod coordinates the action of each component. After the excess material is cut off, it is directly discharged through the unloading port, while the finished product falls and is collected separately. This structural design simplifies the operation process, avoids the quality instability caused by manual processing, effectively ensures product consistency and surface cleanliness, and reduces the overall production cost. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a top view of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the installation position of the molding component of the present invention;

[0023] Figure 4 This is a schematic diagram showing the positions of the material discharge port, limiting groove one, and limiting groove two of the present invention;

[0024] Figure 5 This is a schematic diagram of the overall structure of the feeding assembly of the present invention;

[0025] Figure 6 This is a schematic diagram of the overall structure of the clamping assembly of the present invention;

[0026] Figure 7 This is a schematic diagram of the overall structure of the cutting assembly of the present invention;

[0027] Figure 8 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0028] Figure 9 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B;

[0029] Figure 10 For the present invention Figure 7 Enlarged schematic diagram of the structure at point C.

[0030] In the diagram: 1. Receiving plate; 2. Support rod; 3. Operating table; 4. Vertical plate; 5. Support frame; 6. Cover plate; 7. Plastic extrusion mechanism; 8. Molding assembly; 81. Fixed platform; 82. Motor 1; 83. Mounting slot; 84. Double-sided threaded rod 1; 85. Protrusion; 86. Main mold; 87. Sub-mold; 9. Feeding assembly; 91. Rectangular platform; 92. Hydraulic cylinder; 93. Push rod; 94. Hollow cylinder; 95. Spring; 96. Clamping assembly; 961. Mounting plate; 962. Support plate; 963. Double-sided threaded rod 2; 964. Clamping plate; 965. Belt pulley 1; 966. Side plate; 967. 968. Side platform; 969. Motor II; 960. Transmission column; 961. Through slot; 9602. Belt pulley II; 9603. Belt pulley III; 9604. Stop block; 10. Cutting assembly; 101. Horizontal plate; 102. Fixing hole; 103. Extension rod; 104. Connecting plate; 105. Rack; 106. Guide block; 107. L-shaped plate; 108. Main clamping block; 109. Secondary clamping block; 100. Rectangular cutting plate; 1001. Clamping plate; 1002. Clamping slot; 1003. One-way threaded rod; 1004. Gear; 11. Drop port; 12. Limiting slot I; 13. Limiting slot II. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Example 1, as Figure 1 and Figure 2 As shown, an injection molding device for producing plastic pallets includes a receiving plate 1. Support rods 2 are fixedly connected to the four corners of the upper end of the receiving plate 1. An operating table 3 is fixedly connected to the upper end of the four support rods 2. A vertical plate 4 is fixedly connected to the front side of the upper end of the operating table 3. A support frame 5 is fixedly connected to the upper end of the vertical plate 4. A cover plate 6 is fixedly connected to the upper end of the support frame 5. A plastic extrusion mechanism 7 is fixedly installed at the lower end of the cover plate 6. The output end of the plastic extrusion mechanism 7 passes through the lower end of the support frame 5. A molding component 8 is fixedly installed at the rear end of the vertical plate 4. A feeding component 9 is slidably installed in the middle of the upper end of the receiving plate 1. Cutting components 10 are slidably installed on the left and right sides of the upper end of the receiving plate 1.

[0033] During use, the molding component 8 can clamp the blow-molded material in the inner cavity of the plastic extrusion mechanism 7. After the molding component 8 clamps the material, the feeding component 9 is activated to move forward. When the feeding component 9 moves forward, the cutting components 10 on both sides move outward at the same time. When the front of the feeding component 9 touches the rear end of the vertical plate 4, the feeding component 9 can be controlled to clamp the excess material on the upper and lower sides of the material.

[0034] After the molding component 8 opens the mold, the feeding component 9 is controlled to move backward. The feeding component 9 can hold the excess material and the finished material and move backward at the same time. After the feeding component 9 moves backward a certain distance, the cutting component 10 can clamp the surface of the finished material and cut off the excess material around the finished material. The waste material can fall directly to the upper end of the receiving plate 1. After the waste material is cleaned up, the feeding component 9 can be controlled to move forward. Then the finished material can fall to the upper end of the receiving plate 1 without manual cutting off the excess material on the surface of the finished product.

[0035] The plastic extrusion mechanism 7 mentioned above is a conventional setting in the prior art. In this solution, it is only necessary to ensure that the waste plastic enters the inner cavity of the plastic extrusion mechanism 7 and is plasticized by it, and that the plasticized material is extruded vertically downward from the outlet of the plastic extrusion mechanism 7 in the form of a cylindrical hollow parison. Therefore, its specific installation method, circuit connection method and control method are all conventional designs, and this solution will not elaborate on them in detail.

[0036] Example 2, as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, in this embodiment, a material discharge port 11 is provided on the front side of the middle of the upper end of the receiving plate 1. Limiting grooves 12 are provided on the left and right sides of the upper end of the receiving plate 1. The two limiting grooves 12 are located on the left and right sides of the material discharge port 11, respectively. Limiting grooves 13 are provided on the middle of the left side and the middle of the right side of the upper end of the receiving plate 1. Limiting grooves 13 on the same side are connected to each other.

[0037] Furthermore, the molding component 8 includes a fixed platform 81 fixedly connected to the lower right end of the vertical plate 4. A motor 82 is fixedly connected to the upper end of the fixed platform 81. An installation groove 83 is provided in the middle of the rear end of the vertical plate 4. A bidirectional threaded rod 84 is rotatably connected to the middle of the right side wall of the inner surface of the installation groove 83. The right end of the bidirectional threaded rod 84 passes through the left side wall of the inner surface of the installation groove 83 and is fixedly connected to the output end of the motor 82 through a coupling. Two protrusions 85 are threadedly connected to the outer surface of the bidirectional threaded rod 84. The outer surfaces of the two protrusions 85 are slidably connected to the inner surface of the installation groove 83. A main mold 86 is fixedly connected to the rear end of the right protrusion 85, and a secondary mold 87 is fixedly connected to the rear end of the left protrusion 85.

[0038] Furthermore, the feeding assembly 9 includes a rectangular platform 91 fixedly connected to the middle of the rear side of the upper end of the operating table 3. A hydraulic cylinder 92 is fixedly connected to the upper end of the rectangular platform 91. A push rod 93 is fixedly connected to the output end of the hydraulic cylinder 92 through a piston rod. A hollow cylinder 94 is slidably connected to the outer surface of the push rod 93. A spring 95 is fixedly connected to the front end of the push rod 93 and the rear side wall of the inner surface of the hollow cylinder 94. A clamping assembly 96 is fixedly installed at the front end of the hollow cylinder 94.

[0039] Furthermore, the clamping assembly 96 includes a mounting plate 961 fixedly connected to the front end of the cavity cylinder 94. Two support plates 962 are fixedly connected to the upper and lower sides of the front end of the mounting plate 961. Two bidirectional threaded rods 963 are rotatably connected to the front and rear sides of the two upper support plates 962 that are close to each other, and to the front and rear sides of the two lower support plates 962 that are close to each other. Two clamping plates 964 are threadedly connected to the outer surfaces of the two upper and two lower bidirectional threaded rods 963. The left side of the outer surface of the two upper bidirectional threaded rods 963 and the left side of the outer surface of the lower bidirectional threaded rods 963 are respectively connected to the clamping plates 964. Two double-threaded rods 963 on the side are fixedly connected to pulleys 965 on the left side of their outer surfaces. A side plate 966 is fixedly connected to the left side of the rear end of the mounting plate 961. A side platform 967 is fixedly connected to the upper left end of the side plate 966. A motor 968 is fixedly connected to the upper end of the side platform 967. A transmission column 969 is rotatably connected to the upper right end and the lower right end of the side plate 966. The output end of the motor 968 is fixedly connected to the left end of the upper transmission column 969 via a coupling. A through groove 960 is opened on the left side of the rear end of the mounting plate 961. The through groove 960 is located on the right side of the side plate 966. The outer surfaces of the two pulleys 965 on the same side are connected by belt drive.

[0040] Furthermore, pulleys 9601 are fixedly connected to the front surface of the outer surface of the bidirectional threaded rod 963 located at the upper rear side and the front surface of the outer surface of the bidirectional threaded rod 963 located at the lower rear side. The pulleys 9601 on the same side are located to the right of the pulley 965 on the same side. The outer surfaces of the two transmission columns 969 are fixedly connected to pulleys 9602. The outer surfaces of the two pulleys 9601 and the two pulleys 9602 are connected by belt drive.

[0041] Furthermore, two blocks 9603 are fixedly connected to the left side of the upper middle part and the right side of the upper middle part of the receiving plate 1, and the two blocks 9603 are located at the edge of the discharge port 11 respectively.

[0042] Furthermore, the cutting assembly 10 includes a horizontal plate 101. A fixing hole 102 is provided in the middle of the front end of the horizontal plate 101. The inner surface of the fixing hole 102 is fixedly connected to the outer surface of the push rod 93. Extension rods 103 are fixedly connected to the lower left and lower right ends of the horizontal plate 101. Connecting plates 104 are fixedly connected to the lower sides of the ends of the two extension rods 103 that are far apart from each other. The lower sides of the outer surfaces of the two connecting plates 104 are slidably connected to the inner surfaces of the same side limiting groove 12. A rack 105 is fixedly connected to the lower ends of the two connecting plates 104. The lower ends of the two racks 105 are slidably connected to the bottom wall of the same side limiting groove 12. Guide blocks 106 are slidably connected to the inner surfaces of the two limiting grooves 13. L-shaped plates 107 are fixedly connected to the upper ends of the two guide blocks 106. A main clamping block 108 is fixedly connected to the left end of the vertical part of the right L-shaped plate 107, and a secondary clamping block 109 is fixedly connected to the right end of the vertical part of the left L-shaped plate 107.

[0043] Furthermore, a rectangular cutting plate 100 is fixedly connected to the outer surface of the main clamping block 108, and a clamping plate 1001 is fixedly connected to the outer surface of the auxiliary clamping block 109. A clamping groove 1002 matching the rectangular cutting plate 100 is provided at the right end of the clamping plate 1001.

[0044] Furthermore, the inner surfaces of the two guide blocks 106 are threaded with one-way threaded rods 1003. The left and right ends of the two one-way threaded rods 1003 are rotatably connected to the left side wall and the right side wall of the inner surface of the same side limiting groove 13, respectively. The outer surfaces of the two one-way threaded rods 1003 are fixedly connected with gears 1004 on the side that are close to each other. The gears 1004 on the same side mesh with the racks 105 on the same side.

[0045] During use, the waste plastic inside the plastic extrusion mechanism 7 is first plasticized, and the plasticized material is extruded vertically downwards from the outlet of the plastic extrusion mechanism 7 in the form of a cylindrical hollow preform. After the material is extruded downwards for a certain length and reaches the processable length, the motor 82 is started, and the output end of the motor 82 drives the bidirectional threaded rod 84 fixedly connected to it to rotate. When the bidirectional threaded rod 84 rotates, since the outer surface of the bidirectional threaded rod 84 is set with bidirectional threads, the two protrusions 85 connected to it slide inwards on the inner surface of the mounting groove 83 at the same time. Therefore, the main mold 86 and the auxiliary mold 87 approach each other and clamp and squeeze the material between them, so that the material is extruded and formed. During this process, the hydraulic cylinder 92 is started, and the output end of the hydraulic cylinder 92 drives the push rod 93 fixedly connected to it to move forward through the piston rod. When the push rod 93 moves forward, it can push the hollow cylinder 94 forward. Since the hollow cylinder 94 is fixedly connected to the mounting plate 961, the mounting plate 961 can move forward at the same time.

[0046] When the mounting plate 961 moves forward, the support plate 962 is fixedly connected to its surface, so the support plate 962 moves forward as well until the front end of the support plate 962 is in contact with the rear end of the vertical plate 4. At this time, the motor 968 can be started, so that the output end of the motor 968 drives the transmission column 969 fixedly connected to it to rotate through the piston rod. The outer surfaces of the pulleys 9602 and 9601 are connected by belt drive, and the outer surfaces of the two pulleys 965 on the same side are also connected by belt drive. Therefore, when the pulleys 9602 rotate, the upper and lower bidirectional threaded rods 963 can rotate simultaneously under the action of belt drive. When the bidirectional threaded rods 963 rotate, since their outer surfaces are set with rotating threads, the two clamping plates 964 on the upper side and the two clamping plates 964 on the lower side can slide inward at the front end of the mounting plate 961 at the same time, thereby clamping the upper and lower sides of the material.

[0047] After the material is clamped on the upper and lower sides, the bidirectional threaded rod 84 can be reversed by controlling motor 82. Then the main mold 86 and the auxiliary mold 87 separate from each other. Then the hydraulic cylinder 92 drives the push rod 93 to move backward, which in turn causes the mounting plate 961 to move backward, and the material clamped between the two clamping plates 964 moves backward.

[0048] When the mounting plate 961 moves backward a certain distance, its rear end fits against the front end of the two side stops 9603, and the mounting plate 961 can no longer move backward. Since the push rod 93 is slidably connected to the inner surface of the cavity cylinder 94, the push rod 93 can move further backward on the inner surface of the cavity cylinder 94. During this process, the spring 95 will be stretched by the push rod 93. The inner surface of the fixing hole 102 at the front end of the horizontal plate 101 is fixedly connected to the outer surface of the push rod 93. Therefore, the horizontal plate 101 can move backward with the push rod 93. When the horizontal plate 101 moves backward, the extension rods 103 on its lower left and right sides can simultaneously drive the connecting plate 104 fixedly connected to it to move backward. When the connecting plates 104 on both sides move backward, since the racks 105 on both sides are fixedly connected to the connecting plates 104 on the same side, the lower end of the rack 105 on the same side can slide backward on the bottom wall of the limiting groove 12 on the same side. When the racks 105 on both sides move backward, they can drive the gears 1004 meshing with them to rotate. When the gears 1004 on both sides rotate, the corresponding one-way threaded rods 1003 rotate simultaneously. The guide blocks 106 on both sides are threadedly connected to the one-way threaded rods 1003 on the same side, and the guide blocks 106 on the same side are slidably connected to the inner surface of the limiting groove 13 on the same side. Therefore, the guide blocks 106 on both sides can simultaneously drive the L-shaped plates 107 fixedly connected to their upper ends to move closer to each other. The L-shaped plates 107 on both sides drive the auxiliary clamping block 109 and the main clamping block 108 to move closer to the inward side. When the auxiliary clamping block 109 and the main clamping block 108 are in contact with each other, the finished material can be clamped. During this process, the rectangular cutting plate 100 fixedly connected to the outer surface of the main clamping block 108 can enter the clamping groove 1002 opened on the surface of the clamping plate 1001, thereby cutting off the excess material around the finished material.

[0049] After the excess material is removed, the motor 968 is started, causing the bidirectional threaded rod 963 to reverse, so that the clamping plates 964 on the upper and lower sides no longer stick together. This causes the excess material held between the clamping plates 964 to fall downwards. The excess material then falls from the material drop port 11 at the upper end of the operating table 3 to the upper end of the receiving plate 1. After the excess material is cleaned out, the hydraulic cylinder 92 can be controlled to drive the push rod 93 to move forward again, which causes the rack 105 to move forward and drive the gear 1004 to reverse. This causes the L-shaped plates 107 on both sides to move outwards, and the finished material falls from the material drop port 11 to the upper end of the receiving plate 1.

[0050] It should be noted that the specific installation methods, circuit connection methods, and control methods of the hydraulic cylinder 92, motor 82, and motor 968 used in this invention are all conventional designs, and will not be described in detail in this invention.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding apparatus for producing plastic pallets, comprising a receiving plate (1), characterized in that: Support rods (2) are fixedly connected to the four corners of the upper end of the receiving plate (1). The upper ends of the four support rods (2) are fixedly connected to the operating table (3). A vertical plate (4) is fixedly connected to the front side of the upper end of the operating table (3). A support frame (5) is fixedly connected to the upper end of the vertical plate (4). A cover plate (6) is fixedly connected to the upper end of the support frame (5). A plastic extrusion mechanism (7) is fixedly installed at the lower end of the cover plate (6). The output end of the plastic extrusion mechanism (7) passes through the lower end of the support frame (5). A molding component (8) is fixedly installed at the rear end of the vertical plate (4). A feeding component (9) is slidably installed in the middle of the upper end of the receiving plate (1). A cutting component (10) is slidably installed on the left and right sides of the upper end of the receiving plate (1).

2. The injection molding device for producing plastic pallets according to claim 1, characterized in that: The receiving plate (1) has a material discharge port (11) on the front side of the middle of the upper end. The receiving plate (1) has a limiting groove (12) on the left and right sides of the upper end. The two limiting grooves (12) are located on the left and right sides of the material discharge port (11) respectively. The receiving plate (1) has a limiting groove (13) on the middle of the left side and the middle of the right side of the upper end. The limiting groove (13) on the same side is connected to the limiting groove (12) on the same side.

3. The injection molding device for producing plastic pallets according to claim 1, characterized in that: The molding component (8) includes a fixed platform (81) fixedly connected to the lower right end of the vertical plate (4). A motor (82) is fixedly connected to the upper end of the fixed platform (81). An installation groove (83) is provided in the middle of the rear end of the vertical plate (4). A bidirectional threaded rod (84) is rotatably connected to the middle of the right side wall of the inner surface of the installation groove (83). The right end of the bidirectional threaded rod (84) passes through the left side wall of the inner surface of the installation groove (83) and is fixedly connected to the output end of the motor (82) through a coupling. Two protrusions (85) are threadedly connected to the outer surface of the bidirectional threaded rod (84). The outer surfaces of the two protrusions (85) are slidably connected to the inner surface of the installation groove (83). A main mold (86) is fixedly connected to the rear end of the protrusion (85) on the right side, and a secondary mold (87) is fixedly connected to the rear end of the protrusion (85) on the left side.

4. The injection molding device for producing plastic pallets according to claim 2, characterized in that: The feeding assembly (9) includes a rectangular platform (91) fixedly connected to the middle of the rear side of the upper end of the operating table (3). A hydraulic cylinder (92) is fixedly connected to the upper end of the rectangular platform (91). A push rod (93) is fixedly connected to the output end of the hydraulic cylinder (92) through a piston rod. A cavity cylinder (94) is slidably connected to the outer surface of the push rod (93). A spring (95) is fixedly connected to the front end of the push rod (93) and the rear side wall of the inner surface of the cavity cylinder (94). A clamping assembly (96) is fixedly installed at the front end of the cavity cylinder (94).

5. The injection molding device for producing plastic pallets according to claim 4, characterized in that: The clamping assembly (96) includes a mounting plate (961) fixedly connected to the front end of a cavity cylinder (94). Two support plates (962) are fixedly connected to the upper and lower sides of the front end of the mounting plate (961). Two bidirectional threaded rods (963) are rotatably connected to the front and rear sides of the two upper support plates (962) that are close to each other, and to the front and rear sides of the two lower support plates (962) that are close to each other. Two clamping plates (964) are threadedly connected to the outer surfaces of the two upper bidirectional threaded rods (963) and the two lower bidirectional threaded rods (963) respectively. The left side of the outer surface of the two upper bidirectional threaded rods (963) and the left side of the two lower bidirectional threaded rods (964) are threadedly connected to the clamping plate (964). 963) A pulley 1 (965) is fixedly connected to the left side of the outer surface. A side plate (966) is fixedly connected to the left side of the rear end of the mounting plate (961). A side platform (967) is fixedly connected to the upper left end of the side plate (966). A motor 2 (968) is fixedly connected to the upper end of the side platform (967). A transmission column (969) is rotatably connected to the upper right end and the lower right end of the side plate (966). The output end of the motor 2 (968) is fixedly connected to the left end of the transmission column (969) located on the upper side through a coupling. A through groove (960) is opened on the left side of the rear end of the mounting plate (961). The through groove (960) is located on the right side of the side plate (966). The outer surfaces of the two pulleys 1 (965) on the same side are connected by belt drive.

6. The injection molding device for producing plastic pallets according to claim 5, characterized in that: Both the front surface of the two-way threaded rod two (963) located at the upper rear side and the front surface of the two-way threaded rod two (963) located at the lower rear side are fixedly connected to pulley two (9601). The pulley two (9601) on the same side is located to the right of the pulley one (965) on the same side. The outer surfaces of the two transmission columns (969) are fixedly connected to pulley three (9602). The outer surfaces of the two pulley two (9601) and the two pulley three (9602) are connected by belt drive.

7. The injection molding device for producing plastic pallets according to claim 6, characterized in that: The receiving plate (1) has two fixed blocks (9603) on the left and right sides of the upper middle part, respectively, and the two blocks (9603) are located at the edge of the discharge port (11).

8. The injection molding device for producing plastic pallets according to claim 4, characterized in that: The cutting assembly (10) includes a horizontal plate (101). A fixing hole (102) is provided in the middle of the front end of the horizontal plate (101). The inner surface of the fixing hole (102) is fixedly connected to the outer surface of the push rod (93). An extension rod (103) is fixedly connected to the lower left and lower right sides of the horizontal plate (101). A connecting plate (104) is fixedly connected to the lower side of the two extension rods (103) at their opposite ends. The lower sides of the outer surfaces of the two connecting plates (104) are slidably connected to the inner surface of the limiting groove (12) on the same side. The lower end of each connecting plate (104) is fixedly connected to a rack (105). The lower ends of the two racks (105) are slidably connected to the bottom wall of the first limiting groove (12) on the same side. The inner surfaces of the two limiting grooves (13) are slidably connected to guide blocks (106). The upper ends of the two guide blocks (106) are fixedly connected to L-shaped plates (107). The left end of the vertical part of the L-shaped plate (107) on the right side is fixedly connected to a main clamping block (108), and the right end of the vertical part of the L-shaped plate (107) on the left side is fixedly connected to a secondary clamping block (109).

9. The injection molding device for producing plastic pallets according to claim 8, characterized in that: A rectangular cutting plate (100) is fixedly connected to the outer surface of the main clamping block (108), and a clamping plate (1001) is fixedly connected to the outer surface of the auxiliary clamping block (109). A clamping groove (1002) matching the rectangular cutting plate (100) is opened at the right end of the clamping plate (1001).

10. The injection molding device for producing plastic pallets according to claim 9, characterized in that: The inner surfaces of the two guide blocks (106) are threaded with one-way threaded rods (1003). The left and right ends of the two one-way threaded rods (1003) are rotatably connected to the left side wall and the right side wall of the inner surface of the limiting groove (13) on the same side, respectively. The outer surfaces of the two one-way threaded rods (1003) are fixedly connected with gears (1004) on the side that are close to each other. The gears (1004) on the same side mesh with the racks (105) on the same side.