Glue feeding mechanism of double-color injection mold

By employing a rotating rod and blade structure to cut materials in a two-color mold, combined with internal and external threaded joints and a filter bucket design, the problem of material blockage is solved, enabling continuous material conveying and efficient operation of the injection molding process, thereby improving product quality and production efficiency.

CN223701478UActive Publication Date: 2025-12-23DONGGUAN TAIWANG MASCH CO LTD
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Patent Information

Application Number
CN202423294328.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-23
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing two-color molds are prone to material blockage during injection molding, which affects injection molding efficiency and product quality. In particular, when the material contains particles, fibers or impurities, it can block the mold flow channel and affect the operating efficiency of the injection molding machine.

Method used

The rotary rod and blade structure driven by a No. 2 motor are used to cut plastic raw materials evenly. Combined with the discharge fan structure, the material is continuously conveyed. The injection head is connected to the injection molding machine body using internal and external threaded joints to ensure sealing. A filter bucket is also provided for filtering impurities.

Benefits of technology

It effectively prevents material blockage, ensures the continuity and smoothness of material delivery, improves the efficiency and safety of the injection molding process, reduces production interruptions, and improves product quality and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molds, in particular to a double-color injection mold glue feeding mechanism which comprises a workbench, a lower mold is fixedly installed on the surface of the workbench, supporting rods which are symmetrically distributed are arranged on the two sides of the lower mold, a top plate is fixedly installed at the top ends of the supporting rods, and an air cylinder is fixedly installed on the surface of the top plate. An upper mold is fixedly installed at the output end of the air cylinder, and an injection molding opening is fixedly formed in the side face of the upper mold. According to the plastic injection molding machine, the second motor, the rotating rod, the blade and the discharging fan are arranged, the blade continuously and uniformly cuts plastic raw materials in the storage tank, excessive accumulation and blockage of any part are prevented, the discharging fan effectively pushes the cut materials to smoothly enter the injection molding machine body, the continuity and smoothness of material conveying are guaranteed, and the service life of the injection molding machine is prolonged. The material treatment efficiency is optimized, production interruption caused by material accumulation is remarkably reduced, and efficient operation of the injection molding process is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a glue injection mechanism for a two-color injection mold. Background Technology

[0002] Two-color injection molding technology allows two different colors or materials to be injected into the same mold. It typically consists of multiple injection systems, enabling endless possibilities for appearance and function. For example, automotive parts, traditionally monotonous, can be personalized with two-color molds. Precise injection volume is crucial to ensure the accurate combination of the two different colors. Existing two-color molds require melting plastic granules into a liquid sol at high temperatures using an injection molding machine. However, due to the presence of particles, fibers, or impurities in the material, these materials may clog the hopper, affecting the speed at which plastic is injected into the feeding mechanism. Furthermore, when the material contains unmeltable impurities, it easily clogs the mold runner, directly impacting the operating efficiency of the injection molding machine. Therefore, this paper proposes a two-color injection mold injection mechanism to solve these problems. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] This utility model adopts the following technical solution: a two-color injection mold gluing mechanism, including a worktable, a lower mold fixedly mounted on the surface of the worktable, symmetrically distributed support rods on both sides of the lower mold, a top plate fixedly mounted on the top of the support rods, a cylinder fixedly mounted on the surface of the top plate, an upper mold fixedly mounted on the output end of the cylinder, an injection port fixedly mounted on the side of the upper mold, a fixed platform fixedly mounted on the surface of the worktable, a mounting seat provided on the surface of the fixed platform, an injection molding machine body fixedly mounted on the surface of the mounting seat, an injection head mounted on the output end of the injection molding machine body, a discharge pipe fixedly mounted on the surface of the injection molding machine body, a storage tank fixedly mounted on the upper end of the discharge pipe, a conveying pipe fixedly mounted on the surface of the storage tank, a second motor fixedly mounted on the top of the storage tank, a rotating rod fixedly mounted on the output end of the second motor, a blade fixedly mounted on the surface of one end of the rotating rod located in the storage tank, and a discharge fan fixedly mounted on the surface of one end of the rotating rod located in the discharge pipe.

[0005] Preferably, a limiting piece is fixedly installed on the side of the upper mold, and the limiting piece slides on the surface of the support rod. This ensures the stability and precise alignment of the upper mold during movement, preventing misalignment during injection molding, thereby improving product quality and consistency.

[0006] Preferably, the surface of the fixing table is provided with a sliding groove, one side of the fixing table is fixedly installed with a first motor, the output end of the first motor is fixedly installed with a lead screw, the bottom surface of the mounting seat is fixedly installed with a sliding block, the sliding block slides in the sliding groove, and the lead screw is threadedly connected in the sliding block. At this time, the injection molding machine body is allowed to move accurately along the sliding groove on the fixing table, so that the injection head can be connected with the injection port, automatic control is realized, and the operation convenience and production efficiency are improved.

[0007] Preferably, a fixing support is fixedly installed at the connecting position of the discharging pipe and the storage tank, and the rotating rod is rotatably connected in the fixing support. At this time, the stability of the whole feeding structure is improved, so that the rotating rod can rotate smoothly in the discharging pipe and the storage tank, and the vibration during rotation of the rotating rod is reduced.

[0008] Preferably, the blades are equidistantly distributed on the surface of the rotating rod. At this time, the material in the storage tank can be uniformly cut and scattered, so that the material in the storage tank can be uniformly used and conveyed, the uniformity of the processing process and the product quality are improved, the blockage and material waste are reduced, and the efficiency is improved.

[0009] Preferably, an external thread joint is fixedly installed on the side of the injection head close to the injection molding machine body, an internal thread joint is arranged at the output port of the injection molding machine body, and the external thread joint and the internal thread joint are threadedly and sealingly connected. At this time, reliable sealing is provided, the possibility of material leakage is reduced, the safety and accuracy of the injection process are improved, and in addition, the threaded connection facilitates disassembly and replacement of the injection head, and facilitates maintenance and cleaning of the equipment.

[0010] Preferably, a filter hopper is arranged in the injection head. At this time, the filter hopper can filter the material from the injection head, and when cleaning is needed, the filter hopper can be directly disassembled, so that the cleaning efficiency is improved.

[0011] Compared with the prior art, the advantages and positive effects of the utility model lie in that:

[0012] 1、In the utility model, the second motor, the rotating rod, the blades and the material discharging fan structure are arranged, the blades cut the plastic raw material continuously and uniformly in the storage tank, prevent any part from excessive accumulation and blockage, the material discharging fan effectively pushes the cut material to enter the injection molding machine body smoothly, ensures the continuity and smoothness of material conveying, optimizes the processing efficiency of the material, and significantly reduces the production interruption caused by material accumulation, and ensures the efficient operation of the injection process.

[0013] 2. The utility model discloses, adopt the design of internal and external thread joint and internal thread interface, make between injection head and injection molding machine body can pass through the thread sealed connection, not only provided reliable seal, reduced the possibility of material leakage, also improved the security and accuracy of injection molding process, the convenience of thread connection mode also shows in the replacement and maintenance of injection head, greatly reduced maintenance time and cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A schematic view of the glue feeding mechanism of the double-color injection mold is provided for the utility model;

[0015] Figure 2 A schematic view of the upper die and lower die of the glue feeding mechanism of the double-color injection mold is provided for the utility model;

[0016] Figure 3 A schematic view of the injection molding machine body of the glue feeding mechanism of the double-color injection mold is provided for the utility model;

[0017] Figure 4 A schematic view of the mounting seat of the glue feeding mechanism of the double-color injection mold is provided for the utility model;

[0018] Figure 5 A schematic view of the injection head of the glue feeding mechanism of the double-color injection mold is provided for the utility model;

[0019] Figure 6 A schematic view of the storage tank of the glue feeding mechanism of the double-color injection mold is provided for the utility model.

[0020] LEGEND:

[0021] 1, workbench, 2, lower die, 3, brace, 4, top plate, 5, cylinder, 6, upper die, 7, limit piece, 8, injection port, 9, fixed platform, 10, sliding slot, 11, sliding block, 12, mounting seat, 13, no. 1 motor, 14, screw rod, 15, injection molding machine body, 16, internal thread interface, 17, injection head, 18, external thread joint, 19, filter hopper, 20, blanking pipe, 21, storage tank, 22, material conveying pipe, 23, no. 2 motor, 24, rotating rod, 25, blade, 26, discharge fan, 27, fixed support. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further illustrated below in combination with the drawings and examples. It should be noted that the examples and features in the examples of the present application can be combined with each other without conflict.

[0023] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced according to other embodiments that can not be described in detail herein, and the present application is not limited to the specific embodiments described herein.

[0024] Embodiment one

[0025] Please refer to Figures 1-6 The utility model provides a technical scheme: a kind of two-color injection mold glue feeding mechanism, including workbench 1, the surface of workbench 1 is fixedly installed with lower mould 2, the both sides of lower mould 2 are equipped with the struts 3 of symmetrical distribution, the top of struts 3 is fixedly installed with top plate 4, the surface of top plate 4 is fixedly installed with pneumatic cylinder 5, the output of pneumatic cylinder 5 is fixedly installed with upper mould 6, the side of upper mould 6 is fixedly installed with limit piece 7, limit piece 7 slides on the surface of struts 3, ensure the stability and accurate alignment of upper mould 6 in movement process, avoid producing deviation in injection molding process, to improve the quality and consistency of product, the side of upper mould 6 is fixedly installed with injection port 8, the surface of workbench 1 is fixedly installed with fixed platform 9, the surface of fixed platform 9 is equipped with mounting seat 12, the surface of mounting seat 12 is fixedly installed with injection molding machine body 15, the output of injection molding machine body 15 is installed with injection head 17, the surface of fixed platform 9 is equipped with sliding slot 10, the side of fixed platform 9 is fixedly installed with No.

[0026] Embodiment two

[0027] Please refer to Figure 3 and Figure 5 The injection head 17 is fixedly installed with an external thread joint 18 on the side close to the injection machine body 15, the output port of the injection machine body 15 is provided with an internal thread joint, the external thread joint 18 is in threaded sealing connection with the internal thread joint 16, reliable sealing is provided, the possibility of material leakage is reduced, the safety and accuracy of the injection process are improved, in addition, the threaded connection also facilitates disassembly and replacement of the injection head 17, facilitating maintenance and cleaning of the equipment, a filter hopper 19 is inserted in the interior of the injection head 17, the filter hopper 19 can filter the material from the injection head 17, when cleaning is needed, the filter hopper 19 can be directly disassembled, improving the cleaning efficiency.

[0028] Working principle: when in use, the cylinder 5 drives the upper mold 6 to be close to the lower mold 2, then the first motor 13 drives the lead screw 14 to rotate inside the sliding groove 10, so that the sliding block 11 moves on the surface of the lead screw 14, at the same time, drives the mounting seat 12 to move along the sliding groove 10, so that the injection machine body 15 on the mounting seat 12 moves to the direction of the upper mold 6, in order to butt joint the injection head 17 with the injection port 8, in the material preparation stage, the feeding pipe 22 delivers the raw material to the storage tank 21, at this time, the second motor 23 is started to drive the rotating rod 24 to rotate, when the rotating rod 24 rotates, it will drive the blade 25 in the storage tank 21 to rotate, cutting and scattering the raw material in the storage tank 21, then the raw material enters the discharging pipe 20 and enters the interior of the injection machine body 15 under the action of the discharging fan 26, then the raw material is injected into the upper mold 6 and the lower mold 2 through the injection head 17 of the injection machine body 15, the output end of the injection machine body 15 is provided with an internal thread joint 16 connected with the injection head 17 having an external thread joint 18, to ensure threaded sealing connection between the two, effectively preventing material leakage during high-pressure injection, at the same time, the injection head 17 is internally provided with a filter hopper 19 for filtering the material before injection into the mold, removing any impurities that may affect product quality.

[0029] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A two-color injection mold gluing mechanism, comprising a worktable (1), characterized in that: A lower mold (2) is fixedly mounted on the surface of the workbench (1). Symmetrically distributed support rods (3) are provided on both sides of the lower mold (2). A top plate (4) is fixedly mounted on the top of each support rod (3). A cylinder (5) is fixedly mounted on the surface of the top plate (4). An upper mold (6) is fixedly mounted on the output end of the cylinder (5). An injection port (8) is fixedly mounted on the side of the upper mold (6). A fixed platform (9) is fixedly mounted on the surface of the workbench (1). A mounting seat (12) is provided on the surface of the fixed platform (9). An injection molding machine body (15) is fixedly mounted on the surface of the mounting seat (12). An injection head (17) is installed at the output end of the injection molding machine. A feeding pipe (20) is fixedly installed on the surface of the injection molding machine body (15). A storage tank (21) is fixedly installed at the upper end of the feeding pipe (20). A conveying pipe (22) is fixedly installed on the surface of the storage tank (21). A second motor (23) is fixedly installed at the top of the storage tank (21). A rotating rod (24) is fixedly installed at the output end of the second motor (23). A blade (25) is fixedly installed on one end of the rotating rod (24) located in the storage tank (21). A discharge fan (26) is fixedly installed on one end of the rotating rod (24) located in the feeding pipe (20).

2. The two-color injection mold gluing mechanism according to claim 1, characterized in that: A limiting piece (7) is fixedly installed on the side of the upper mold (6), and the limiting piece (7) slides on the surface of the support rod (3).

3. The two-color injection mold gluing mechanism according to claim 1, characterized in that: The surface of the fixed platform (9) is provided with a sliding groove (10). A No. 1 motor (13) is fixedly installed on the side of the fixed platform (9). A lead screw (14) is fixedly installed at the output end of the No. 1 motor (13). A slider (11) is fixedly installed on the bottom surface of the mounting base (12). The slider (11) slides inside the sliding groove (10). The lead screw (14) is threaded inside the slider (11).

4. The two-color injection mold gluing mechanism according to claim 1, characterized in that: A fixed bracket (27) is fixedly installed at the connection between the feed pipe (20) and the storage tank (21), and the rotating rod (24) is rotatably connected inside the fixed bracket (27).

5. The two-color injection mold gluing mechanism according to claim 1, characterized in that: The blades (25) are evenly distributed on the surface of the rotating rod (24).

6. The two-color injection mold gluing mechanism according to claim 1, characterized in that: An external threaded connector (18) is fixedly installed on the side of the injection head (17) near the injection molding machine body (15). An internal threaded connector is provided at the output port of the injection molding machine body (15). The external threaded connector (18) and the internal threaded interface (16) are connected by a thread seal.

7. The two-color injection mold gluing mechanism according to claim 1, characterized in that: The injection head (17) is equipped with a filter hopper (19).