Raw material conveying device for production of tennis machine injection molding parts
By designing the feeding assembly, the problem of plastic granules sticking together after cooling in the conveying pipe was solved, achieving uniform melting and flow control of raw materials, simplifying the disassembly and cleaning process, and improving the production efficiency of injection molded parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU PENGTAO PLASTICS CO LTD
- Filing Date
- 2025-03-06
- Publication Date
- 2026-06-09
AI Technical Summary
Plastic granules stick together after cooling inside the delivery pipe, which reduces fluidity, affects the molding of injection molded parts, makes cleaning difficult, and reduces the flow space inside the pipe.
A feeding assembly was designed, including a feeding pipe, a screw, a connector and a motor. The rotation of the screw and the heating of the heating layer ensure uniform melting of the raw material and control the flow rate, and it is easy to disassemble and clean.
It achieves uniform melting and flow of raw materials, reduces the difficulty of disassembly and cleaning, and improves the production efficiency of injection molded parts.
Smart Images
Figure CN224334853U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding machine technology, and in particular to a raw material conveying device for the production of injection molded parts for tennis machines. Background Technology
[0002] Tennis machine injection molds have special injection molds. After the injection mold is installed with the injection molding machine, the material is fed from the hopper, passes through the conveying pipe, melts in the conveying pipe, and is then sent into the injection mold to wait for the material to solidify and the injection molded part is formed.
[0003] To ensure the smooth flow of raw materials into the mold and their uniform distribution inside, the fluidity of the raw materials in the delivery pipe is crucial. The plastic granule solution is quite viscous, and after cooling, it adheres to the inner wall of the delivery pipe, making it difficult to clean. Over time, this reduces the flow space inside the pipe and affects the fluidity. Utility Model Content
[0004] The purpose of this application is to provide a raw material conveying device for the production of injection molded parts for tennis machines, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this application provides the following technical solution:
[0006] A raw material conveying device for producing injection molded parts for tennis machines includes a worktable and a feeding assembly installed above the worktable. The feeding assembly includes a feeding pipe, a screw, and a connector. The connector is threaded to the end of the feeding pipe. The outer wall of the end of the connector is threaded and aligns with the mold inlet on the outer wall. The screw is movably installed inside the feeding pipe. A plug is fixedly installed at the end of the screw near the connector, and a baffle is fixedly installed at the end of the screw away from the connector. A connecting rod is fixedly installed on the outer wall of the baffle away from the screw, and the connecting rod extends out of the feeding pipe. A motor is fixedly installed on the worktable, and the output end of the motor aligns with the connecting rod.
[0007] Preferably, the outer wall of the feeding pipe has a discharge port, which is fixed to the external hopper by bolts. The outer edge of the baffle is fitted to the inner wall of the feeding pipe. A sleeve is threaded onto the outer wall of the motor's output end. The end of the connecting rod is threaded, and one end of the sleeve is threaded to the end of the connecting rod. Cylinders are installed on both sides of the motor, and the cylinders are fixedly mounted on the workbench surface. The output ends of the cylinders are fixedly connected to the motor. A heating layer is installed on the outer wall of the feeding pipe. A rotating plate is mounted on the inner wall of the end of the feeding pipe away from the connector via a bearing. A keyway is provided on the outer wall of the rotating plate, and the connecting rod passes through the keyway of the rotating plate.
[0008] The beneficial effects of this utility model are: by providing a feeding assembly, the feeding pipe, connector and screw can be completely separated and cleaned separately, reducing the difficulty of disassembly and simplifying the installation steps. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the internal structure of the feeding tube in this utility model;
[0011] Figure 3 This is a schematic diagram of the working state structure of the screw in this utility model;
[0012] Figure 4 This is an exploded view of the internal structure of the feeding pipe in this utility model.
[0013] In the diagram: 1. Workbench; 2. Feed pipe; 3. Motor; 4. Cylinder; 5. Sleeve; 6. Connecting rod; 7. Heating layer; 8. Connector; 9. Baffle; 10. Screw; 11. Plug; 12. Rotating plate. Detailed Implementation
[0014] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.
[0015] like Figure 1-4 The device shown is a raw material conveying device for producing injection molded parts for tennis machines. It includes a workbench 1 and a feeding assembly installed above the workbench 1. The feeding assembly includes a feeding pipe 2, a screw 10 and a connector 8. The connector 8 is threaded to the end of the feeding pipe 2. The outer wall of the end of the connector 8 is threaded and aligns with the mold inlet on the outer wall. The screw 10 is movably installed inside the feeding pipe 2. A plug 11 is fixedly installed at the end of the screw 10 near the connector 8. A baffle 9 is fixedly installed at the end of the screw 10 away from the connector 8. A connecting rod 6 is fixedly installed on the outer wall of the baffle 9 away from the screw 10. The connecting rod 6 extends out of the feeding pipe 2. A motor 3 is fixedly installed on the table surface of the workbench 1. The output end of the motor 3 is connected to the connecting rod 6.
[0016] The outer wall of the feeding pipe 2 has a discharge port, which is fixed to the external hopper by bolts. The outer edge of the baffle 9 is in contact with the inner wall of the feeding pipe 2. The output end of the motor 3 is threaded with a sleeve 5, and the end of the connecting rod 6 is threaded. One end of the sleeve 5 is threaded to the end of the connecting rod 6. Cylinders 4 are provided on both sides of the motor 3. The cylinders 4 are fixedly installed on the table surface of the workbench 1, and the output end of the cylinder 4 is fixedly connected to the motor 3. The outer wall of the feeding pipe 2 is covered with a heating layer 7. The inner wall of the end of the feeding pipe 2 away from the connector 8 is fitted with a rotating plate 12 through a bearing. The outer wall of the rotating plate 12 has a keyway, and the connecting rod 6 passes through the keyway of the rotating plate 12.
[0017] Example: Motor 3 drives connecting rod 6 to rotate via sleeve 5 at the output end. Connecting rod 6 drives rotating plate 12 to rotate at the end of feeding pipe 2. Connecting rod 6 simultaneously drives screw 10 to rotate. Heating layer 7 starts heating feeding pipe 2. The external hopper feeds plastic granules through the discharge port on the outer wall of feeding pipe 2. Heating layer 7 heats and melts the granules. Screw 10 drives plastic granules to rotate, ensuring uniform heating. The rotation of the grooves on the outer wall of screw 10 drives the molten plastic towards the port of connector 8 and finally into the external injection mold. To prevent the molten plastic from entering the mold too quickly and overflowing... In the case of injection molding, cylinder 4 drives motor 3 to move on worktable 1, causing motor 3 to push connecting rod 6. Connecting rod 6 slides in the keyway of rotating plate 12. Connecting rod 6 drives baffle 9, which fits against the inner wall of feeding pipe 2 to prevent solution overflow. The stroke of baffle 9 does not exceed the discharge port of feeding pipe 2. Baffle 9 drives screw 10, which drives plug 11 to approach the discharge port of connector 8. Plug 11 will block most of the plastic solution and reduce the flow rate of the plastic solution. After the injection molding is completed, cylinder 4 drives motor 3 to reset, and motor 3 drives screw 10 to reset.
[0018] When the feeding pipe 2 needs to be cleaned, rotate the sleeve 5 to separate the thread from the end of the connecting rod 6, thus separating the feeding port of the feeding pipe 2 from the external hopper. Then, the operator rotates the feeding pipe 2, which drives the connector 8 at the end of the feeding pipe 2 to rotate, thus separating the connector 8 from the external mold. This allows the feeding pipe 2, connector 8, and screw 10 to be disassembled together. Then, rotate the connector 8 to separate it from the end of the feeding pipe 2. The operator can then remove the screw 10 from the threaded end of the feeding pipe 2 and connector 8. The connecting rod 6 is separated from the rotating plate 12. The feeding pipe 2, connector 8, and screw 10 can be completely separated for cleaning and easy disassembly and assembly.
[0019] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.
[0020] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A raw material conveying device for producing injection molded parts for tennis ball machines, comprising a worktable (1) and a feeding assembly installed above the worktable (1), characterized in that: The feeding assembly includes a feeding pipe (2), a screw (10), and a connector (8). The connector (8) is threaded to the end of the feeding pipe (2). The outer wall of the end of the connector (8) is threaded and is connected to the mold inlet on the outer wall. The screw (10) is movably installed inside the feeding pipe (2). A plug (11) is fixedly installed at the end of the screw (10) near the connector (8). A baffle (9) is fixedly installed at the end of the screw (10) away from the connector (8). A connecting rod (6) is fixedly installed on the outer wall of the baffle (9) away from the screw (10). The connecting rod (6) extends out of the feeding pipe (2). A motor (3) is fixedly installed on the table surface of the workbench (1). The output end of the motor (3) is connected to the connecting rod (6).
2. The raw material conveying device for producing injection molded parts for tennis machines according to claim 1, characterized in that: The output end of the motor (3) is threaded with a sleeve (5), and the end of the connecting rod (6) is threaded. One end of the sleeve (5) is threaded to the end of the connecting rod (6). Cylinders (4) are provided on both sides of the motor (3). The cylinders (4) are fixedly installed on the table surface of the workbench (1). The output end of the cylinder (4) is fixedly connected to the motor (3).
3. The raw material conveying device for producing injection molded parts for tennis machines according to claim 1, characterized in that: The outer wall of the feeding pipe (2) is covered with a heating layer (7). The inner wall of the end of the feeding pipe (2) away from the connector (8) is fitted with a rotating plate (12) through a bearing. The outer wall of the rotating plate (12) is provided with a keyway. The connecting rod (6) passes through the keyway of the rotating plate (12).
4. The raw material conveying device for producing injection molded parts for tennis machines according to claim 1, characterized in that: The outer wall of the feeding pipe (2) is provided with a discharge port, which is fixed to the outer hopper by bolts. The outer edge of the baffle (9) is attached to the inner wall of the feeding pipe (2).