Injection mold for luggage wheel machining production

Abstract

This utility model discloses an injection mold for the production of luggage wheels, relating to the field of injection mold technology. It includes a bottom mold and a stripper plate. The bottom mold corresponds to the inner side of a pressure mold, and the outer side of the pressure mold is provided with injection holes. The inner sides of both the bottom mold and the pressure mold are evenly provided with corresponding cavities. A spring is fixed inside the bottom mold, and the outer end of the spring is connected to the inner side of a push plate. The push plate is slidably installed inside the bottom mold. A sliding rod is fixed to the inner side of the push plate, and the inner end of the sliding rod passes through a through hole in the center of the cavity and is fixed with the stripper plate. This injection mold for luggage wheel production prevents damage caused by the wheels falling directly during stripping by using a baffle plate in conjunction with the movement of the stripper plate. Simultaneously, the sprayed release agent, combined with a cleaning brush, cleans debris from the cavity, thereby improving the quality of subsequent luggage wheel injection molding.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold used in the production of wheel manufacturing for bags. Background Technology

[0002] Bags and luggage are a general term for all kinds of bags used to carry things, including general shopping bags, handbags, clutches, wallets, backpacks, shoulder bags, shoulder bags, waist bags, and various trolley cases. As a key component of products such as suitcases and trolley cases, the wear resistance, rotation flexibility, and structural strength of bags and luggage directly affect the service life and user experience of bags and luggage.

[0003] Traditional wheel production mostly uses injection molding, but during the demolding process, the material is usually received manually by personnel. This is not only unsafe but also prone to falling and bumping, causing damage. After injection molding, plastic debris or mold release agent may remain in the cavity. Manual cleaning is inefficient and can easily scratch the mold surface. Therefore, we propose an injection mold for the processing and production of bag wheels. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an injection mold for the processing and production of luggage wheels. By moving the baffle in conjunction with the stripper plate, the wheel can be prevented from falling directly during the stripping process and causing damage. At the same time, the sprayed release agent and cleaning brush can clean the debris in the cavity, thereby improving the quality of subsequent injection molding of luggage wheels. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for processing and producing luggage wheels, comprising a bottom mold and a stripper plate;

[0006] Bottom mold: It corresponds to the inner side of the pressure mold. The outer side of the pressure mold is provided with injection holes. The inner sides of the bottom mold and the pressure mold are evenly provided with corresponding cavities. A spring is fixed inside the bottom mold. The outer end of the spring is connected to the inner side of the push plate. The push plate is slidably installed inside the bottom mold. A slide rod is fixed on the inner side of the push plate. The inner end of the slide rod passes through the through hole in the middle of the cavity and is fixed with a stripper plate. The stripper plate is slidably installed inside the cavity. The bottom surface of the push plate is provided with a material support unit.

[0007] It also includes guide pillars and guide holes. There are four guide pillars, which are fixed at the four corners of the inner side of the bottom mold, and four guide holes, which are opened at the four corners of the inner side of the pressing mold.

[0008] External hydraulic rods push the push plate to make the stripper plate slide inside the cavity to complete the stripping process. The cooperation between the guide post and the guide hole ensures accurate alignment when the bottom mold and the pressure mold are closed, avoiding wheel size deviation caused by misalignment.

[0009] Furthermore, the material-supporting unit includes a baffle, a toothed groove, a sliding seat, a support rod, a gear, and a motor. There are two support rods, each fixed to one side of the bottom surface of the push plate. The inner end of each support rod is connected to the outer side of the sliding seat. The interior of the sliding seat is slidably connected to one side of the baffle. The motor is fixed to the outer side of the sliding seat, and a gear is mounted on the motor's output shaft. The toothed groove is located on one side of the outer side of the baffle and meshes with the gear. A cleaning unit is provided on the inner side of the baffle. The input end of the motor is electrically connected to the output end of an external controller. The support rod can move in conjunction with the baffle during material removal. Starting the motor causes the gear to mesh with the toothed groove, allowing the baffle to slide and rise within the sliding seat to collect the removed bag wheels, preventing them from falling automatically and causing damage.

[0010] Furthermore, the material support unit also includes a limiting block and a limiting groove. The limiting block is fixed inside the sliding seat, and the limiting groove is opened on the inner side of the baffle. The limiting block and the limiting groove are slidably connected. The sliding of the limiting block inside the limiting groove can increase the stability of the baffle lifting.

[0011] Furthermore, the material support unit also includes a rubber pad and a baffle plate. The rubber pad is adhered to the outer side of the baffle plate, and the baffle plate is fixed to the bottom of the baffle plate. The rubber pad can prevent wear on the surface of the bag wheels during the unloading process, and the baffle plate can prevent the bag wheels from falling off.

[0012] Furthermore, the cleaning unit includes an atomizing spray nozzle, a cleaning brush, a mounting bracket, an electric push rod, a connecting bracket, and a liquid pump. There are two connecting brackets, fixed to the top of the inner side of the baffle in a front-to-back configuration. An electric push rod is located on the inner side of each connecting bracket, with its outer end connected to one end of the inner side of the cleaning brush. The bottom ends of both sides of the mounting bracket are connected to the top surfaces of the two connecting brackets, respectively. An atomizing spray nozzle is fixed to the outer side of the mounting bracket, with its inlet connected to the outlet of the liquid pump. The liquid pump is fixed to the bottom of the inner side of the baffle. The input ends of the electric push rod and the liquid pump are electrically connected to the output end of an external controller. Activating the electric push rod drives the cleaning brush to automatically clean debris from the cavity of the bottom mold surface. Simultaneously, after cleaning, the liquid pump atomizes and sprays a release agent through the atomizing spray nozzle, facilitating subsequent injection molding demolding.

[0013] Furthermore, it also includes a stripping coating and a wear-resistant coating. The stripping coating is uniformly coated on the inner wall of the cavity, and the wear-resistant coating is coated on the surface of the guide post. The stripping coating is a polytetrafluoroethylene coating. The stripping coating can reduce the resistance of the bag wheel demolding to ensure that the wheel surface is smooth and free of scratches, while the wear-resistant coating can reduce the wear on the surface of the guide post.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This injection mold for processing and producing luggage wheels has the following advantages:

[0015] 1. The support rod can move in conjunction with the baffle during unloading. The motor is started to make the gear mesh with the tooth groove, so that the baffle slides and rises inside the sliding seat to collect the unloaded bag wheels. The rubber pad can prevent the surface of the bag wheels from being worn during the unloading process, and the baffle can prevent them from falling down automatically and causing collision damage.

[0016] 2. By activating the electric push rod, the cleaning brush automatically cleans the debris inside the cavity of the bottom mold surface. At the same time, after cleaning, the liquid pump sprays the release agent through the atomizing nozzle to facilitate subsequent injection molding demolding. The set release coating can reduce the resistance of the bag wheels during demolding, ensuring that the wheel surface is smooth and free of scratches, while the wear-resistant coating can reduce the wear on the guide post surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the bottom mold of this utility model;

[0019] Figure 3 This is a schematic diagram of the inner side structure of the bottom mold of this utility model;

[0020] Figure 4 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0021] Figure 5 This utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0022] Figure 6 This is a schematic diagram of the internal structure of the cavity of this utility model.

[0023] In the diagram: 1. Bottom mold, 2. Material support unit, 21. Baffle, 22. Tooth groove, 23. Sliding seat, 24. Support rod, 25. Gear, 26. Motor, 27. Limiting block, 28. Limiting groove, 29. Rubber pad, 210. Baffle plate, 3. Cleaning unit, 31. Atomizing nozzle, 32. Cleaning brush, 33. Mounting bracket, 34. Electric push rod, 35. Connecting bracket, 36. Liquid pump, 4. Press mold, 5. Cavity, 6. Spring, 7. Push plate, 8. Slide rod, 9. Stripping plate, 10. Guide post, 11. Guide hole, 12. Stripping coating, 13. Wear-resistant coating. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-6 This embodiment provides a technical solution: an injection mold for the production of luggage wheels, including a bottom mold 1 and a stripper plate 9;

[0026] Bottom mold 1: Corresponds to the inner side of the compression mold 4. The outer side of the compression mold 4 is provided with injection holes. The inner sides of the bottom mold 1 and the compression mold 4 are evenly provided with corresponding cavities 5. Springs 6 are fixed inside the bottom mold 1. The outer ends of the springs 6 are connected to the inner side of the push plate 7. The push plate 7 is slidably installed inside the bottom mold 1. A slide rod 8 is fixed to the inner side of the push plate 7. The inner end of the slide rod 8 passes through the through hole in the middle of the cavity 5 and is fixed with a stripper plate 9. The stripper plate 9 is slidably installed inside the cavity 5. The bottom surface of the push plate 7 is provided with a material support unit 2. The material support unit 2 includes a baffle 21, a toothed groove 22, a sliding seat 23, a support rod 24, a gear 25, and a motor 26. There are two support rods 24, which are fixed on both sides of the bottom surface of the push plate 7 respectively. The inner ends of the support rods 24 are connected to the inner side of the push plate 7. The outer side of the sliding seat 23 is connected, and the interior of the sliding seat 23 is slidably connected to one side of the baffle 21. The motor 26 is fixed to the outer side of the sliding seat 23, and the output shaft of the motor 26 is equipped with a gear 25. A tooth groove 22 is opened on one side of the outer side of the baffle 21, and the tooth groove 22 meshes with the gear 25. The inner side of the baffle 21 is provided with a cleaning unit 3. The input end of the motor 26 is electrically connected to the output end of an external controller. The support rod 24 can move in coordination with the baffle 21 during material removal. Starting the motor 26 causes the gear 25 to mesh with the tooth groove 22, so that the baffle 21 slides and rises and falls inside the sliding seat 23 to collect the removed bag wheels and prevent them from falling automatically and causing damage. The material support unit 2 also includes a limiting block 27 and a limiting groove. 28. The limiting block 27 is fixed inside the sliding seat 23. The limiting groove 28 is opened on the inner side of the baffle 21. The limiting block 27 and the limiting groove 28 are slidably connected. The sliding of the limiting block 27 inside the limiting groove 28 can increase the stability of the baffle 21 lifting. The material support unit 2 also includes a rubber pad 29 and a baffle plate 210. The rubber pad 29 is bonded to the outer side of the baffle 21. The baffle plate 210 is fixed to the bottom of the baffle 21. The rubber pad 29 can prevent the surface of the bag wheel from being worn during the unloading process. The baffle plate 210 can prevent the bag wheel from falling off. The cleaning unit 3 includes an atomizing spray pipe 31, a cleaning brush 32, a mounting bracket 33, an electric push rod 34, a connecting bracket 35 and a liquid pump 36. There are two connecting brackets 35, which are fixed to the front and rear correspondingly. An electric push rod 34 is provided on the top of the inner side of the baffle 21 and the inner side of the connecting frame 35. The outer end of the electric push rod 34 is connected to one end of the inner side of the cleaning brush 32. The bottom ends of both sides of the mounting frame 33 are respectively connected to the top surfaces of the two connecting frames 35. An atomizing spray pipe 31 is fixed on the outer side of the mounting frame 33. The liquid inlet of the atomizing spray pipe 31 is connected to the liquid outlet of the liquid pump 36. The liquid pump 36 is fixed at the bottom of the inner side of the baffle 21. The input ends of the electric push rod 34 and the liquid pump 36 are electrically connected to the output end of the external controller. When the electric push rod 34 is started, the cleaning brush 32 automatically cleans the debris inside the cavity 5 on the surface of the bottom mold 1. At the same time, after cleaning, the liquid pump 36 sprays the release agent after atomizing it through the atomizing spray pipe 31, which facilitates the subsequent injection molding demolding process.

[0027] The system also includes guide pillars 10 and guide holes 11. There are four guide pillars 10, which are fixed at the four corners of the inner side of the bottom mold 1. There are four guide holes 11, which are opened at the four corners of the inner side of the pressure mold 4. An external hydraulic rod pushes the push plate 7 to make the stripper plate 9 slide inside the cavity 5 to complete the stripping process. The cooperation between the guide pillars 10 and the guide holes 11 ensures that the bottom mold 1 and the pressure mold 4 are accurately aligned when they are closed, avoiding wheel size deviation caused by misalignment. The system also includes a stripping coating 12 and a wear-resistant coating 13. The stripping coating 12 is evenly coated on the inner wall of the cavity 5, and the wear-resistant coating 13 is coated on the surface of the guide pillars 10. The stripping coating 12 is a polytetrafluoroethylene coating. The stripping coating 12 can reduce the resistance of the bag wheel demolding and ensure that the wheel surface is smooth and free of scratches. The wear-resistant coating 13 can reduce the wear on the surface of the guide pillars 10.

[0028] The working principle of the injection mold for processing and producing bags wheels provided by this utility model is as follows: First, the bottom mold 1 and the pressure mold 4 are installed on the injection molding machine. The external hydraulic rod is activated to bring the bottom mold 1 and the pressure mold 4 into place. The cooperation between the guide post 10 and the guide hole 11 ensures that the bottom mold 1 and the pressure mold 4 are accurately aligned when the mold is closed, avoiding wheel size deviation caused by misalignment. Then, the injection liquid is injected into the cavity 5 through the injection hole. After injection molding, the external hydraulic rod pushes the push plate 7 to make the stripper plate 9 slide inside the cavity 5 to complete the stripping process. At the same time, the support rod 24 can move in coordination with the baffle 21 during stripping. The motor 26 is activated to engage the gear 25 with the tooth groove 22, causing the baffle 21 to slide and rise within the sliding seat 23 to collect the stripped bag wheels. The rubber pad 29 prevents wear on the surface of the bag wheels during stripping, and the baffle 210 prevents them from falling and causing damage. As the baffle 21 descends, the electric push rod 34 is activated to drive the cleaning brush 32 to automatically clean the debris inside the cavity 5 on the surface of the bottom mold 1. After cleaning, the liquid pump 36 sprays the release agent through the atomizing nozzle 31 to facilitate subsequent injection molding demolding.

[0029] It is worth noting that the external controller disclosed in the above embodiments is equipped with buttons corresponding to the motor 26, the electric actuator 34, and the liquid pump 36, respectively. The external controller controls the operation of the motor 26, the electric actuator 34, and the liquid pump 36 using methods commonly used in the prior art.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A injection mold for luggage wheel machining production, characterized in that: Includes bottom mold (1) and stripper plate (9); Bottom mold (1): It is matched with the inner side of the pressure mold (4). The outer side of the pressure mold (4) is provided with injection holes. The inner sides of the bottom mold (1) and the pressure mold (4) are evenly provided with corresponding cavities (5). The bottom mold (1) is fixed with springs (6). The outer end of the spring (6) is connected to the inner side of the push plate (7). The push plate (7) is slidably installed inside the bottom mold (1). The inner side of the push plate (7) is fixed with a slide rod (8). The inner end of the slide rod (8) passes through the through hole in the middle of the cavity (5) and is fixed with a stripper plate (9). The stripper plate (9) is slidably installed inside the cavity (5). The bottom surface of the push plate (7) is provided with a material support unit (2). It also includes guide posts (10) and guide holes (11). There are four guide posts (10) and they are fixed at the four corners of the inner side of the bottom mold (1). There are four guide holes (11) and they are opened at the four corners of the inner side of the pressing mold (4).

2. The injection mold for luggage wheel machining production according to claim 1, characterized in that: The material support unit (2) includes a baffle (21), a toothed groove (22), a sliding seat (23), a support rod (24), a gear (25), and a motor (26). There are two support rods (24) and they are fixed on both sides of the bottom surface of the push plate (7). The inner end of the support rod (24) is connected to the outer side of the sliding seat (23). The interior of the sliding seat (23) is slidably connected to one side of the baffle (21). The motor (26) is fixed on the outer side of the sliding seat (23). The output shaft of the motor (26) is equipped with a gear (25). The toothed groove (22) is opened on one side of the outer side of the baffle (21). The toothed groove (22) meshes with the gear (25). The inner side of the baffle (21) is provided with a cleaning unit (3). The input end of the motor (26) is electrically connected to the output end of an external controller.

3. The injection mold for luggage wheel machining production according to claim 2, characterized in that: The material support unit (2) also includes a limiting block (27) and a limiting groove (28). The limiting block (27) is fixed inside the sliding seat (23), and the limiting groove (28) is opened on the inner side of the baffle (21). The limiting block (27) and the limiting groove (28) are slidably connected.

4. The injection mold for luggage wheel machining production according to claim 2, characterized in that: The material support unit (2) also includes a rubber pad (29) and a baffle plate (210). The rubber pad (29) is bonded to the outer side of the baffle plate (21), and the baffle plate (210) is fixed to the bottom of the baffle plate (21).

5. The injection mold for luggage wheel machining production according to claim 2, characterized in that: The cleaning unit (3) includes an atomizing nozzle (31), a cleaning brush (32), a mounting bracket (33), an electric push rod (34), a connecting bracket (35), and a liquid pump (36). There are two connecting brackets (35), which are fixed to the top of the inner side of the baffle (21) in a front-to-back manner. An electric push rod (34) is provided on the inner side of the connecting bracket (35). The outer end of the electric push rod (34) is connected to one end of the inner side of the cleaning brush (32). The bottom ends of both sides of the mounting bracket (33) are respectively connected to the top surfaces of the two connecting brackets (35). An atomizing nozzle (31) is fixed on the outer side of the mounting bracket (33). The liquid inlet of the atomizing nozzle (31) is connected to the liquid outlet of the liquid pump (36). The liquid pump (36) is fixed at the bottom of the inner side of the baffle (21). The input ends of the electric push rod (34) and the liquid pump (36) are electrically connected to the output end of an external controller.

6. The injection mold for luggage wheel machining production according to claim 1, characterized in that: It also includes a stripping coating (12) and a wear-resistant coating (13), wherein the stripping coating (12) is uniformly coated on the inner wall of the cavity (5), and the wear-resistant coating (13) is coated on the surface of the guide post (10), and the stripping coating (12) is a polytetrafluoroethylene coating.

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