An injection mold for the processing and production of polyurethane composite bag wheels.

Abstract

This utility model relates to the technical field of bag parts processing equipment, specifically an injection mold for processing polyurethane composite bag wheels. The mold base has a curved support rod above it, a slide groove on the worktable, a base at the bottom of the curved support rod, and a slider penetrating and slidably connected to the slide groove at the lower end of the base. A second motor is located at the lower end of the worktable, and a threaded rod penetrating and threadedly connected to the slider is located at the output end of the second motor. A rotating tube is rotatably mounted at the top of the curved support rod, and multiple distribution pipes are located at the front end of the rotating tube. An automated release agent spraying system replaces manual spraying, saving labor costs. When there are many mold grooves, the release agent spraying can be completed quickly and evenly, greatly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of bag parts processing equipment, specifically an injection mold for processing and producing polyurethane composite bag wheels. Background Technology

[0002] Bag wheels made of polyurethane composite materials have many advantages, making them highly sought after in the bag accessories industry. Polyurethane itself has good wear resistance, and bag wheels made from it can withstand long-term rolling friction. However, the production process requires the use of injection molds.

[0003] When using existing injection molds, after the wheel workpiece is demolded, it is necessary to manually spray release agent into the mold cavity. This manual spraying method is not only wasteful of manpower, but also inefficient when there are many mold cavities. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an injection mold for the processing and production of polyurethane composite bag wheels.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for processing and producing polyurethane composite bag wheels, comprising a worktable, a mold base, a movable mold, and a propulsion assembly at the upper end of the worktable, the mold base and the propulsion assembly being fixed at the upper end of the worktable, the mold base having multiple mold grooves, the movable mold having multiple modules cooperating with the mold grooves, guide rods penetrating the movable mold at the four corners of the mold base, and a push rod connecting the movable mold at the output end of the propulsion assembly;

[0008] A curved support rod is provided above the mold base. A slide groove is provided on the worktable. A base is provided at the bottom end of the curved support rod. A slider is provided at the lower end of the base, passing through the slide groove and slidably connected to it. A second motor is provided at the lower end of the worktable. A threaded rod is provided at the output end of the second motor, passing through the slider and threadedly connected to it. A rotating tube is rotatably provided at the top end of the curved support rod. Multiple diverter tubes are provided at the front end of the rotating tube. A nozzle is provided at the front end of the diverter tube. A transfer tube is rotatably provided at the rear end of the rotating tube. A gear ring is also provided at the rear end of the rotating tube. A first motor is provided at the rear side of the curved support rod. A gear that meshes with the gear ring is provided at the output end of the first motor.

[0009] To improve the stability of the mobile mold during use, the present invention includes an improvement whereby the end of the guide rod away from the mold base is provided with a fixing frame fixed to the upper end of the worktable.

[0010] To ensure the stability of this structure during use, the improvements of this utility model are as follows: both the first motor and the second motor are servo motors, and the propulsion component is a cylinder.

[0011] Furthermore, an improvement of this utility model is that the adapter pipe is fixed to the rear side of the curved support rod by a support rod.

[0012] Furthermore, an improvement of this utility model is that the rotating tube and the diverter tube are an integrated structure.

[0013] Furthermore, an improvement of this utility model is that the adapter pipe, rotating pipe, and diverter pipe are all made of stainless steel.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides an injection mold for the processing and production of polyurethane composite bag wheels, which has the following beneficial effects:

[0016] An automated mold release agent spraying system replaces manual spraying, saving labor costs. When there are many mold slots, it can quickly and evenly complete the spraying of the mold release agent, greatly improving production efficiency.

[0017] With the help of guide rods and fixed frames, the moving mold moves stably and has high precision in its fit with the mold base, ensuring the sealing and stability of the mold during injection molding, reducing the probability of product defects, and improving the molding quality of bag wheels. Attached Figure Description

[0018] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0020] Figure 3 This utility model Figure 1 The main view;

[0021] Figure 4 This utility model Figure 1 Side view;

[0022] In the diagram: 1. Mold base; 2. Moving mold; 3. Fixed frame; 4. Guide rod; 5. Propulsion assembly; 6. Bending support rod; 7. Rotating pipe; 8. Diverter pipe; 9. Nozzle; 10. Gear ring; 11. Transfer pipe; 12. Support rod; 13. First motor; 14. Gear; 15. Base; 16. Slide groove; 17. Slider; 18. Second motor; 19. Threaded rod; 20. Worktable. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model discloses an injection mold for processing and producing polyurethane composite bag wheels, including a workbench 20. The upper end of the workbench 20 is provided with a mold base 1, a movable mold 2, and a push assembly 5. The mold base 1 and the push assembly 5 are fixed to the upper end of the workbench 20. The mold base 1 is provided with multiple mold grooves. The movable mold 2 is provided with multiple modules that cooperate with the mold grooves. The four corners of the mold base 1 are provided with guide rods 4 that penetrate the movable mold 2. The output end of the push assembly 5 is provided with a push rod that connects to the movable mold 2.

[0025] A curved support rod 6 is provided above the mold base 1. A slide groove 16 is provided on the worktable 20. A base 15 is provided at the bottom end of the curved support rod 6. A slider 17 is provided at the lower end of the base 15, passing through the slide groove 16 and slidably connected to the slide groove 16. A second motor 18 is provided at the lower end of the worktable 20. A threaded rod 19 is provided at the output end of the second motor 18, passing through the slider 17 and threadedly connected to the slider 17. A rotating tube 7 is rotatably provided at the top end of the curved support rod 6. A plurality of diversion tubes 8 are provided at the front end of the rotating tube 7. A nozzle 9 is provided at the front end of the diversion tube 8. A transfer tube 11 is rotatably provided at the rear end of the rotating tube 7. A toothed ring 10 is also provided at the rear end of the rotating tube 7. A first motor 13 is provided at the rear side of the curved support rod 6. A gear 14 that meshes with the toothed ring 10 is provided at the output end of the first motor 13.

[0026] Injection Molding Process: First, connect the transfer pipe 11 to the feed pump to ensure the mold release agent supply path is ready. Activate the propulsion assembly 5 (using a cylinder). The cylinder's push rod pushes the moving mold 2, which slides along the guide rods 4 at the four corners of the mold base 1 until the module on the moving mold 2 precisely engages and closes with the mold groove on the mold base 1. At this point, the polyurethane composite material is injected into the mold groove under pressure through the feeding system, and injection molded within the mold groove on the mold base 1, forming the basic shape of the bag wheel. The guide rods 4 not only guide the movement of the moving mold 2 but also ensure its stability during movement, preventing deviation and ensuring the accuracy of the injection molding process.

[0027] In this embodiment, the end of the guide rod 4 away from the mold base 1 is provided with a fixing frame 3 fixed to the upper end of the worktable 20.

[0028] The end of the guide rod 4 away from the mold base 1 is fixed to the worktable 20 by the fixing frame 3, which further enhances the stability of the entire structure and makes the moving mold 2 more stable and reliable in use.

[0029] Demolding and release agent spraying process: When the wheel injection molding is complete and demolding is required, the propulsion assembly 5 is restarted, the cylinder push rod moves in the reverse direction, causing the moving mold 2 to move along the guide rod 4, thereby opening the mold. The operator removes the molded wheel workpiece from the mold groove. Next, the second motor 18 (using a servo motor) at the lower end of the worktable 20 is started. The threaded rod 19 at the output end of the second motor 18 rotates. Since the slider 17 is threadedly connected to the threaded rod 19 and the slider 17 slides in the slide groove 16, the rotation of the threaded rod 19 drives the slider 17 to move in the slide groove 16, thereby causing the bent support rod 6 to move the rotating tube 7 to one side of the mold base 1. Subsequently, the feed pump is started, and the release agent enters the rotating tube 7 through the transfer pipe 11, and then is sprayed out from the nozzle 9 through multiple branch pipes 8 at the front end of the rotating tube 7. At this time, the first motor 13 (a servo motor) on the rear side of the bending support rod 6 is started. The gear 14 at the output end of the first motor 13 meshes with the gear ring 10 at the rear end of the rotating tube 7, driving the rotating tube 7 to rotate, causing multiple nozzles 9 to rotate accordingly, thereby spraying the release agent evenly into the mold groove and on the contact surface between the mold base 1 and the moving mold 2.

[0030] In this embodiment, the rotating tube 7 and the diverter tube 8 are an integrated structure.

[0031] The rotating pipe 7 and the diversion pipe 8 are integrated into one structure, which ensures the smooth delivery of the release agent and reduces the possibility of leakage.

[0032] In this embodiment, the adapter pipe 11 is fixed to the rear side of the curved support rod 6 by the support rod 12.

[0033] The adapter pipe 11 is fixed to the rear side of the curved support rod 6 by the support rod 12, which ensures the stability of the adapter pipe 11 and prevents shaking during the spraying of the release agent.

[0034] In this embodiment, the adapter pipe 11, the rotating pipe 7, and the diversion pipe 8 are all made of stainless steel.

[0035] The adapter pipe 11, rotating pipe 7, and branch pipe 8 are all made of stainless steel, which enhances the durability of the pipeline and enables it to withstand the pressure of the release agent and the wear of long-term use.

[0036] Improved production efficiency: The automated mold release agent spraying system replaces manual spraying, saving labor costs. When dealing with a large number of mold slots, it can quickly and evenly complete the spraying of the mold release agent, significantly improving production efficiency. For example, in the mass production of bag wheels, manual spraying of mold release agent can be time-consuming, while this automated spraying system can complete the spraying of multiple mold slots in a short time, effectively shortening the production cycle.

[0037] Improving product quality: Under the guidance of the guide rod 4 and the fixed frame 3, the moving mold 2 moves stably and has high precision in its fit with the mold base 1, ensuring the sealing and stability of the mold during injection molding, reducing the probability of product defects, and improving the molding quality of the bag wheels. At the same time, the evenly sprayed release agent can better assist in demolding, further improving the surface quality and integrity of the product.

[0038] In this embodiment, both the first motor 13 and the second motor 18 are servo motors, and the propulsion component 5 is a cylinder.

[0039] The first motor 13 and the second motor 18 are servo motors, which have high-precision control performance and can accurately control the rotation angle of the rotating tube 7 and the moving position of the bending support rod 6, ensuring the uniformity and accuracy of the release agent spraying. The propulsion assembly 5 uses a cylinder to provide stable thrust, ensuring smooth and reliable opening and closing of the moving mold 2 and enhancing the stability of the entire mold during use.

[0040] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An injection mold for processing and producing polyurethane composite bag wheels, comprising a worktable (20), characterized in that: The upper end of the workbench (20) is provided with a mold base (1), a moving mold (2) and a propulsion component (5). The mold base (1) and the propulsion component (5) are fixed to the upper end of the workbench (20). The mold base (1) is provided with multiple mold slots. The moving mold (2) is provided with multiple modules that cooperate with the mold slots. The four corners of the mold base (1) are provided with guide rods (4) that penetrate the moving mold (2). The output end of the propulsion component (5) is provided with a push rod that connects to the moving mold (2). A curved support rod (6) is provided above the mold base (1), a slide groove (16) is provided on the worktable (20), a base (15) is provided at the bottom end of the curved support rod (6), a slider (17) is provided at the lower end of the base (15) and slides through the slide groove (16) and is slidably connected to the slide groove (16), a second motor (18) is provided at the lower end of the worktable (20), a threaded rod (19) is provided at the output end of the second motor (18) and threadedly connected to the slider (17), a rotating tube (7) is rotatably provided at the top end of the curved support rod (6), a plurality of diversion tubes (8) are provided at the front end of the rotating tube (7), a nozzle (9) is provided at the front end of the diversion tube (8), a transfer tube (11) is rotatably provided at the rear end of the rotating tube (7), a toothed ring (10) is also provided at the rear end of the rotating tube (7), a first motor (13) is provided at the rear side of the curved support rod (6), and a gear (14) meshing with the toothed ring (10) is provided at the output end of the first motor (13).

2. The injection mold for processing and producing polyurethane composite bag wheels according to claim 1, characterized in that: The guide rod (4) is provided with a fixing frame (3) fixed to the upper end of the worktable (20) at the end away from the mold base (1).

3. The injection mold for processing and producing polyurethane composite bag wheels according to claim 2, characterized in that: Both the first motor (13) and the second motor (18) are servo motors, and the propulsion assembly (5) is a cylinder.

4. The injection mold for processing and producing polyurethane composite bag wheels according to claim 3, characterized in that: The adapter pipe (11) is fixed to the rear side of the curved support rod (6) by a support rod (12).

5. The injection mold for processing and producing polyurethane composite bag wheels according to claim 4, characterized in that: The rotating tube (7) and the diverter tube (8) are an integrated structure.

6. The injection mold for processing and producing polyurethane composite bag wheels according to claim 5, characterized in that: The transfer pipe (11), rotating pipe (7) and diversion pipe (8) are all made of stainless steel.

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