Injection mold forming device

By designing an injection mold forming device, a step-by-step injection molding method is adopted, and a hydraulic cylinder drives a moving block to achieve the synchronous molding of hard plastic and soft rubber outer ring. This solves the problem of cumbersome production of luggage casters and improves production efficiency and quality.

CN223849801UActive Publication Date: 2026-01-30PINGHU KAIXIN PLASTIC IND CO LTD
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Patent Information

Application Number
CN202520466130.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-01-30
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

In the existing technology, the production of luggage casters requires the use of two molds for injection molding in separate processes, which makes the production process cumbersome and reduces the efficiency of injection molding production.

Method used

Design an injection mold forming device. By setting first and second movable blocks on the operating table and using hydraulic cylinders to drive, step-by-step injection molding is achieved. First, the hard plastic is injected into the mold cavity, and then the soft rubber outer ring is injected into the same mold through the injection pipe, thus achieving one-time one-piece molding.

Benefits of technology

It has improved the efficiency and quality of caster production, met the needs of different parts and materials, and simplified the production process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223849801U_ABST
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Abstract

The utility model discloses an injection mold forming device, and relates to the technical field of injection mold forming devices, the injection mold forming device comprises an operation table, the top of the operation table is fixedly connected with a fixed block, one side of the fixed block is provided with a plurality of mold grooves, and one side, close to the mold grooves, in the operation table is slidably connected with a first movable block. The first movable block is firstly driven to move, so that the connecting block is located in the mold groove, injection molding is carried out through the liquid injection hole and the cavity, injection molding of hard plastic in the middle of the trundle is conveniently completed, then the second movable block is driven to move, the liquid injection pipe is inserted into the hole, and the connecting block is pushed out of the mold groove through the clamping block. And secondary injection molding is carried out through the liquid injection pipe and the cavity, injection molding of the soft rubber outer ring on the surface of the trundle is conveniently achieved, through the step-by-step injection molding mode, integrated forming of the hard plastic and the soft rubber outer ring in the middle of the trundle is achieved at a time, the requirements for different materials of different parts of the trundle are met, and the production efficiency and quality of the trundle are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold forming device technical field, concretely is a kind of injection mold forming device. BACKGROUND

[0002] In the booming era of today's manufacturing industry, plastic products are widely used in various fields, and the market demand for luggage, as a necessity for people's daily travel, is growing continuously. Luggage is assembled by multiple parts, such as the box body and the caster, among which the production of the caster is formed by injection molding of the mold.

[0003] Currently, when the caster of the luggage is injection molded, the hard plastic in the middle of the caster needs to be injection molded in one of the molds first, then the hard plastic is removed after molding, and then it is placed into the second mold, so that the injection molding of the soft rubber outer ring on the surface of the caster can be completed again, and the production of the caster can be realized.

[0004] However, when the caster of the luggage is injection molded, it is produced by using two molds for injection molding in two steps, which makes the production process more complicated and reduces the efficiency of the caster injection molding production. INVENTION CONTENTS

[0005] Therefore, the utility model aims to provide an injection mold forming device to solve the technical problem that when the caster of the luggage is injection molded, it is produced by using two molds for injection molding in two steps, which makes the production process more complicated and reduces the efficiency of the caster injection molding production.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection mold forming device, comprising an operation table, the top of the operation table is fixedly connected with a fixed block, and a plurality of mold grooves are arranged on one side of the fixed block, a first movable block is slidably connected to one side of the operation table close to the mold groove, a plurality of connecting blocks matching the mold grooves are arranged in the first movable block, and the connecting blocks and the first movable block are connected by springs, a second movable block is slidably connected to one side of the operation table away from the mold groove, cavities are arranged in the first movable block and the second movable block, a plurality of injection holes matching the mold grooves are arranged on one side of the first movable block, a group of holes are arranged in each mold groove, an injection pipe is connected to the cavity on one side of the second movable block, and the injection pipe matches the corresponding hole, and a plurality of clamping blocks matching the mold grooves are fixedly connected to one side of the second movable block.

[0007] By adopting the technical scheme, when the caster at the bottom of the luggage is injection molded, the first movable block is first driven to move, so that it is in contact with one side of the fixed block, the connecting block is not extruded into the mold groove, the hole can be blocked, and then the cavity and the injection liquid hole are used to deliver injection liquid into the mold groove, so that the hard plastic in the middle of the caster is injection molded, and after injection molding and molding are completed, the second movable block is driven to be close to the fixed block, so that the injection pipe is inserted into the hole, the connecting block is driven to move by the clamping block, and the connecting block is pushed out of the mold groove, and then the cavity and the injection pipe are used to deliver liquid into the mold groove again, so that the soft rubber outer ring on the surface of the caster is injection molded, so that the caster is formed by twice injection molding, the first movable block and the second movable block are driven to be away from the fixed block at the same time, and then the molded caster can be taken out of the mold groove, the structure is injection molded in steps, the hard plastic in the middle of the caster and the soft rubber outer ring are integrally formed at one time, the requirements of different materials for different parts of the caster are met, and the production efficiency and the quality of the caster are improved.

[0008] The utility model further sets up, first movable block inside be provided with a plurality of with the connection block's fit receiving groove, and the connecting block is connected with the receiving groove through the spring, the connecting block is movable in the receiving groove.

[0009] By adopting the technical scheme, the receiving groove can provide a receiving range for the connecting block, so that the connecting block can be extruded into the receiving groove, and the injection molding of the soft rubber outer ring on the surface of the caster can be avoided.

[0010] The utility model further sets up, the top of operation platform is provided with the chute, and the chute is connected with the sliding block that fits with the chute in the chute sliding, the sliding block is fixedly connected at the bottom of second movable block.

[0011] By adopting the technical scheme, the sliding groove and the sliding block are provided, the second movable block can stably move according to the predetermined track, and the injection pipe can be stably inserted into the hole for injection molding.

[0012] The utility model further sets up, first movable block and second movable block are connected with the one side of operation platform corresponding respectively through a group of hydraulic cylinders.

[0013] By adopting the technical scheme, the first movable block and the second movable block can be provided with driving force by the corresponding hydraulic cylinders respectively, so that the first movable block and the second movable block can stably move.

[0014] The utility model further sets up, first movable block is provided with first connecting pipe away from the one side of fixed block, and second movable block is provided with second connecting pipe away from the one side of fixed block.

[0015] By adopting the technical scheme, the first connecting pipe and the second connecting pipe can be connected with external devices through external pipes, liquid injection devices corresponding to the cavities are respectively conveyed, and the external pipes connected with the first connecting pipe and the second connecting pipe can be corrugated pipes, so that the movement of the first movable block and the second movable block is not affected.

[0016] The utility model further sets up, each the mould groove all is provided with with each group The card block is in accord with the card slot.

[0017] By adopting the technical scheme, the first connecting pipe and the second connecting pipe can be connected with external devices through external pipes, liquid injection devices corresponding to the cavities are respectively conveyed, and the external pipes connected with the first connecting pipe and the second connecting pipe can be corrugated pipes, so that the movement of the first movable block and the second movable block is not affected.

[0018] The utility model further sets up, each the mould groove all is provided with with each group The card block is in accord with the card slot.

[0019] By adopting the technical scheme, the first connecting pipe and the second connecting pipe can be connected with external devices through external pipes, liquid injection devices corresponding to the cavities are respectively conveyed, and the external pipes connected with the first connecting pipe and the second connecting pipe can be corrugated pipes, so that the movement of the first movable block and the second movable block is not affected.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] The utility model discloses a first movable block is driven to move first, so that the connecting block is located in the mould groove, so that the liquid injection hole and the cavity are used to injection molding first, the injection of the hard plastic in the caster is completed first, then the second movable block is driven to move, so that the liquid injection pipe is inserted into the hole, and the connecting block is pushed out of the mould groove by the card block, and then the liquid injection pipe and the cavity are used to secondary injection molding, so that the injection molding of the soft rubber outer ring on the surface of the caster is realized, the structure realizes the integrated molding of the hard plastic in the caster and the soft rubber outer ring by the step injection molding mode, meets the demand of different materials of different parts of the caster, and the production efficiency and quality of the caster are improved. ACCURACY

[0022] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0023] Figure 2 It is the three-dimensional structure section view of the utility model;

[0024] Figure 3 It is the injection molding mold schematic diagram of the utility model;

[0025] Figure 4 It is the injection molding mold detail view of the utility model.

[0026] In the diagram: 1. Operating platform; 2. Fixed block; 3. Mold groove; 4. First movable block; 5. Second movable block; 6. Hydraulic cylinder; 7. Cavity; 8. First connecting pipe; 9. Second connecting pipe; 10. Storage groove; 11. Connecting block; 12. Spring; 13. Injection hole; 14. Hole; 15. Injection pipe; 16. Slot; 17. Locking block; 18. Slide groove; 19. Slider. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The embodiments of this utility model will be described below based on its overall structure.

[0029] An injection mold forming device, such as Figures 1-4 As shown, the system includes an operating platform 1. A fixed block 2 is fixedly connected to the top of the operating platform 1, and several mold grooves 3 are provided on one side of the fixed block 2. The mold grooves 3 can be used to complete the injection molding of the luggage casters. At the same time, a first movable block 4 is slidably connected to the side of the operating platform 1 near the mold grooves 3, and a second movable block 5 is slidably connected to the side of the operating platform 1 away from the mold grooves 3. The first movable block 4 and the second movable block 5 are respectively connected to the corresponding side of the operating platform 1 through a set of hydraulic cylinders 6. Therefore, the corresponding hydraulic cylinders 6 can provide driving force to the first movable block 4 or the second movable block 5, so that the first movable block 4 and the second movable block 5 can move stably.

[0030] Then a plurality of connecting blocks 11 are arranged in the first movable block 4 and match the mold groove 3, and the connecting blocks 11 and the first movable block 4 are connected by springs 12, so that when the hydraulic cylinder 6 drives the first movable block 4 to move and contact one side of the mold groove 3, the connecting blocks 11 can be located in the mold groove 3, and cavities 7 are arranged in the first movable block 4 and the second movable block 5, and a plurality of injection holes 13 are arranged on one side of the first movable block 4 and match the mold groove 3, so that the injection liquid in the cavity 7 of the first movable block 4 can enter the mold groove 3 through the injection hole 13, and the injection of the hard plastic in the middle of the caster can be completed, a group of holes 14 are arranged in each mold groove 3, an injection pipe 15 is arranged on one side of the second movable block 5 and connected with the cavity 7, and the injection pipe 15 matches the corresponding hole 14, a plurality of clamping blocks 17 are fixedly connected to one side of the second movable block 5 and match the mold groove 3, so that when the hydraulic cylinder 6 drives the second movable block 5 to move, the injection pipe 15 is inserted into the hole 14, and the clamping block 17 pushes the connecting block 11 to extrude the spring 12 and separate from the mold groove 3, so that the injection liquid in the cavity 7 of the second movable block 5 can enter the mold groove 3 through the injection pipe 15, and the injection of the soft rubber outer ring on the surface of the caster can be completed.

[0031] Among them, a plurality of receiving grooves 10 are arranged in the first movable block 4 and match the connecting blocks 11, and the connecting blocks 11 are connected with the receiving grooves 10 by springs 12, and the connecting blocks 11 move in the receiving grooves 10, and a clamping groove 16 matching each group of clamping blocks 17 is arranged in each mold groove 3, so that the clamping blocks 17 can stably push the connecting blocks 11 to move in the clamping groove 16, and after the connecting blocks 11 are in the mold groove 3, the clamping blocks 17 are located in the clamping groove 16, so as to avoid the injection liquid from entering the clamping groove 16 and affecting the molding of the caster.

[0032] Further, a sliding groove 18 is arranged on the top of the operation table 1, and a sliding block 19 matching the sliding groove 18 is slidably connected in the sliding groove 18, and the sliding block 19 is fixedly connected to the bottom of the second movable block 5, so that the sliding groove 18 and the sliding block 19 can increase the stability of the movement of the second movable block 5, facilitate the stable insertion of the injection pipe 15 into the hole 14, and the stable insertion of the clamping block 17 into the clamping groove 16, and the stability of the operation of the injection device can be increased.

[0033] Meanwhile, a first connecting pipe 8 is arranged on the side of the first movable block 4 away from the fixed block 2, and a second connecting pipe 9 is arranged on the side of the second movable block 5 away from the fixed block 2, so that the first connecting pipe 8 and the second connecting pipe 9 are connected with the corresponding devices through external pipelines, so as to transport the required injection liquid into the corresponding cavities 7 through the first connecting pipe 8 and the second connecting pipe 9, and the injection of the caster can be better facilitated, and the external pipelines connected with the first connecting pipe 8 and the second connecting pipe 9 can be corrugated pipes, so as to avoid affecting the movement of the first movable block 4 and the second movable block 5.

[0034] In the present application, the hollow structure is arranged in each connecting block 11, so that the weight of the connecting block 11 is reduced without affecting the injection molding of the luggage caster, and the connecting block 11 is facilitated to move better.

[0035] In the use process, the first movable block 4 is driven to move first, so that it is in contact with one side of the fixed block 2, so that the connecting block 11 is not extruded in the mold groove 3, and the hole 14 and the clamping groove 16 can be blocked, and then the cavity 7 in the first movable block 4 and the injection hole 13 are used to deliver the injection liquid to the mold groove 3, so that the injection molding of the hard plastic in the middle of the caster is completed, and after the injection molding and molding are completed, the second movable block 5 is driven to be close to the fixed block 2, so that the injection pipe 15 is inserted into the hole 14, and the connecting block 11 is pushed by the clamping block 17 to move, until the connecting block 11 is pushed out of the mold groove 3, and then the cavity 7 in the second movable block 5 and the injection pipe 15 are used to deliver the liquid to the mold groove 3 again, so that the injection molding of the soft rubber outer ring on the surface of the caster is completed, so that the caster is formed by two times of injection molding liquid, the first movable block 4 and the second movable block 5 are driven to be away from the fixed block 2 synchronously, and then the molded caster is taken out of the mold groove 3. The structure is formed by step injection molding, and the hard plastic in the middle of the caster and the soft rubber outer ring are integrally formed at one time, the requirements of different materials for different parts of the caster are met, and the production efficiency and quality of the caster are improved.

[0036] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the person skilled in the art can make modifications, replacements and changes of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. An injection mold forming device, comprising an operation table (1), a fixed block (2) is fixedly connected to the top of the operation table (1), and a plurality of mold grooves (3) are arranged on one side of the fixed block (2), characterized in that: The operation platform (1) is slidably connected with a first movable block (4) near one side of the mold groove (3), a plurality of connecting blocks (11) matched with the mold groove (3) are arranged in the first movable block (4), and the connecting blocks (11) and the first movable block (4) are connected through springs (12); the operation platform (1) is slidably connected with a second movable block (5) away from the mold groove (3), cavities (7) are arranged in the first movable block (4) and the second movable block (5), a plurality of liquid injection holes (13) matched with the mold groove (3) are arranged on one side of the first movable block (4), a group of holes (14) are arranged in each mold groove (3), a liquid injection pipe (15) connected with the cavity (7) is mounted on one side of the second movable block (5), the liquid injection pipe (15) is matched with the corresponding hole (14), and a plurality of clamping blocks (17) matched with the mold groove (3) are fixedly connected on one side of the second movable block (5).

2. The injection mold forming apparatus according to claim 1, characterized by: A plurality of receiving grooves (10) matched with the connecting blocks (11) are arranged in the first movable block (4), and the connecting blocks (11) are connected with the receiving grooves (10) through the springs (12); and the connecting blocks (11) are movable in the receiving grooves (10).

3. The injection mold forming apparatus of claim 1, wherein: A sliding groove (18) is arranged on the top of the operation platform (1), a sliding block (19) matched with the sliding groove (18) is slidably connected in the sliding groove (18), and the sliding block (19) is fixedly connected to the bottom of the second movable block (5).

4. The injection mold forming apparatus of claim 1, wherein: The first movable block (4) and the second movable block (5) are respectively connected with one side of the operation platform (1) through a group of hydraulic cylinders (6).

5. The injection mold forming apparatus of claim 1, wherein: A first connecting pipe (8) is arranged on one side of the first movable block (4) away from the fixed block (2), and a second connecting pipe (9) is arranged on one side of the second movable block (5) away from the fixed block (2).

6. The injection mold forming apparatus of claim 1, wherein: A clamping groove (16) matched with each group of clamping blocks (17) is arranged in each mold groove (3).

7. The injection mold forming apparatus of claim 1, wherein: Each connecting block (11) is provided with a hollow structure.