Ox horn glue feeding mold structure
By combining a bullhorn-shaped pipe and an S-shaped injection pipe with a servo motor-driven bidirectional threaded rod system, the problems of unbalanced flow channels and blockages in injection molds are solved, enabling high-quality filling of products and rapid maintenance of the pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHANDE IND CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-08
AI Technical Summary
Existing injection molds suffer from internal runner imbalances during use, leading to incomplete filling, shrinkage, or flow marks in parts of the product, and the runners are prone to blockage.
It adopts a bullhorn-shaped pipe and an S-shaped glue inlet pipe structure, combined with a servo motor-driven bidirectional threaded rod system, to achieve stable flow of molten plastic and quick disassembly and maintenance.
It improves the filling quality of products, reduces flow marks and lowers the risk of pipe blockage, and reduces downtime for maintenance.
Smart Images

Figure CN224210416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold design technology, and in particular to a horn-shaped injection mold structure. Background Technology
[0002] In traditional plastic injection molding, the injection system typically includes the main runner, branch runners, and gate. If the mold structure or product shape is complex, or if the product requirements are high, more stringent requirements will be placed on the injection method and runner balance.
[0003] When existing devices are in use, imbalances inside the flow channel can lead to defects such as incomplete filling, shrinkage, or flow marks in the product. In addition, blockages can occur inside the channel after a period of use. Therefore, a horn-shaped injection mold structure is proposed. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] The purpose of this utility model is to provide a horn-shaped glue injection mold structure to solve the problems mentioned in the background art, such as incomplete filling, shrinkage, or flow marks in the product caused by the imbalance inside the flow channel during use of the existing device, and the blockage of the channel after a period of use.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a horn-shaped glue injection mold structure, comprising a lower mold, a clamping assembly disposed inside the lower mold, an mounting block snapped onto the outer side of the clamping assembly, a horn-shaped pipe disposed inside the mounting block, an upper mold overlapping the top surface of the lower mold, an S-shaped glue injection pipe disposed inside the upper mold, the clamping assembly comprising a bidirectional threaded rod disposed inside the lower mold, two sets of connecting plates threaded onto the outer side of the bidirectional threaded rod, one end of each of the two sets of connecting plates being fixedly connected to a snap-fit plate, and a servo motor being fixedly connected to one side of the bidirectional threaded rod.
[0008] As a further embodiment of this utility model, one end of the S-shaped glue inlet tube is connected to a glue inlet pipe via a flexible hose, and two sets of hydraulic rods are fixedly connected to the top of the upper mold. The hydraulic rods are used to drive the upper mold to move.
[0009] As a further embodiment of this utility model, the lower mold is provided with several sets of ejector pins inside, and a worktable is provided on the bottom surface of the lower mold. The ejector pins serve to eject the formed mold.
[0010] As a further embodiment of this utility model, a fixing plate is fixedly connected to the top surface of the workbench, and two sets of protective doors are opened on the surface of the workbench. The fixing plate serves to fix the hydraulic rod.
[0011] As a further embodiment of this utility model, both sets of protective doors are provided with handles on their surfaces, and both sets of protective doors are provided with observation windows on one side of their surfaces. The handles serve to open and close the protective doors.
[0012] As a further embodiment of this utility model, the bottom surface of the workbench is fixedly connected with four sets of casters, and each of the four sets of casters is equipped with a brake pad. The brake pads serve to fix the casters in place.
[0013] As a further embodiment of this utility model, a mounting plate is fixedly installed on the side of the workbench, and several sets of hooks are fixedly connected to the bottom surface of the mounting plate. The hooks serve to hold items.
[0014] (III) Beneficial Effects
[0015] This utility model provides a horn-shaped glue injection mold structure, which has the following beneficial effects:
[0016] 1. This horn-shaped injection mold structure, through the clamping components and the horn-shaped pipe, allows molten plastic to enter the horn-shaped pipe along the injection pipe during use. The horn-shaped pipe forms a flow channel shape similar to the arc of a "horn," allowing the curvature to gradually decrease or change as the flow channel extends forward, maintaining a smooth flow of molten plastic and reducing local pressure loss. After a period of use, the servo motor is started, and the rotation of the servo motor drives the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod causes the connecting plate to move on the bidirectional threaded rod. The movement of the connecting plate allows the snap-fit plate to be pulled out from the insertion interface on the side of the mounting block, thus allowing the mounting block to be replaced. This enables quick disassembly and maintenance when the horn-shaped pipe becomes blocked or needs cleaning, reducing downtime losses.
[0017] 2. The horn-shaped injection mold structure, through the setting of the S-shaped injection tube, allows the molten plastic to enter the horn-shaped tube when it enters the injection tube. At this time, the molten plastic flows inside the S-shaped injection tube. The S-shaped injection tube has multiple arcs inside, which can reduce the melt flow resistance and shear heat during flow, making the product fill more smoothly and reducing flow marks. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the bull horn-shaped pipe structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the clamping component structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the S-shaped glue inlet tube structure of this utility model.
[0022] In the diagram: 1. Lower mold; 2. Clamping assembly; 201. Bidirectional threaded rod; 202. Connecting plate; 203. Snap-fit plate; 204. Servo motor; 3. Mounting block; 4. Horn-shaped pipe; 5. Upper mold; 6. S-shaped glue inlet pipe; 7. Glue inlet pipe; 8. Hydraulic rod; 9. Ejector pin; 10. Worktable; 11. Fixing plate; 12. Protective door; 13. Handle; 14. Casters; 15. Observation window; 16. Mounting plate; 17. Hook. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a horn-shaped glue injection mold structure, including a lower mold 1, a clamping component 2 is provided inside the lower mold 1, an installation block 3 is snapped to the outside of the clamping component 2, a horn-shaped pipe 4 is provided inside the installation block 3, an upper mold 5 is overlapped to the top surface of the lower mold 1, an S-shaped glue injection pipe 6 is provided inside the upper mold 5, the clamping component 2 includes a bidirectional threaded rod 201 provided inside the lower mold 1, two sets of connecting plates 202 are threaded to the outside of the bidirectional threaded rod 201, one end of each of the two sets of connecting plates 202 is fixedly connected to a snap-fit plate 203, and a servo motor 204 is fixedly connected to one side of the bidirectional threaded rod 201;
[0025] One end of the S-shaped glue inlet pipe 6 is connected to the glue inlet pipe 7 via a flexible hose. Two sets of hydraulic rods 8 are fixedly connected to the top of the upper mold 5. The hydraulic rods 8 are used to move the upper mold 5.
[0026] The lower mold 1 has several sets of ejector pins 9 inside, and a worktable 10 is provided on the bottom surface of the lower mold 1. The ejector pins 9 are used to eject the mold that has been formed.
[0027] A fixing plate 11 is fixedly connected to the top surface of the workbench 10. Two sets of protective doors 12 are opened on the surface of the workbench 10. The fixing plate 11 serves to fix the hydraulic rod 8.
[0028] Both sets of protective doors 12 are equipped with handles 13 on their surfaces, and both sets of protective doors 12 are equipped with observation windows 15 on one side of their surfaces. The handles 13 are used to open and close the protective doors 12.
[0029] The bottom surface of the workbench 10 is fixedly connected with four sets of casters 14. Each of the four sets of casters 14 is equipped with a brake pad. The brake pads are used to fix the casters 14 in place.
[0030] The workbench 10 has a fixed mounting plate 16 on its side. Several sets of hooks 17 are fixedly connected to the bottom surface of the mounting plate 16. The hooks 17 are used to place items.
[0031] In this invention, the working steps of the device are as follows:
[0032] First step: During use, molten plastic enters the horn-shaped pipe 4 along the glue inlet pipe 7. The horn-shaped pipe 4 forms a flow channel shape with an arc similar to a "horn", which allows the curvature to gradually decrease or switch as the flow channel extends forward, so that the molten plastic can maintain a smooth flow and reduce local pressure loss. After a period of use, the servo motor 204 is started. The rotation of the servo motor 204 drives the bidirectional threaded rod 201 to rotate. The rotation of the bidirectional threaded rod 201 causes the connecting plate 202 to move on the bidirectional threaded rod 201. The movement of the connecting plate 202 causes the snap-fit plate 203 to be pulled out from the insertion interface on the side of the mounting block 3, so that the mounting block 3 can be replaced.
[0033] The second step: When the molten plastic enters the glue inlet pipe 7, it passes through the S-shaped glue inlet pipe 6 and enters the horn-shaped pipe 4. At this time, the molten plastic flows inside the S-shaped glue inlet pipe 6. The S-shaped glue inlet pipe 6 has multiple arcs inside, which can reduce the melt flow resistance and shear heat during flow.
[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0036] 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A horn-shaped glue injection mold structure, comprising a lower mold (1), characterized in that: The lower mold (1) is equipped with a clamping assembly (2) inside. A mounting block (3) is snapped onto the outside of the clamping assembly (2). A horn-shaped pipe (4) is installed inside the mounting block (3). The upper mold (5) is overlapped and connected to the top surface of the lower mold (1). An S-shaped glue inlet pipe (6) is installed inside the upper mold (5). The clamping assembly (2) includes a bidirectional threaded rod (201) disposed inside the lower mold (1). Two sets of connecting plates (202) are threadedly connected to the outer side of the bidirectional threaded rod (201). One end of each of the two sets of connecting plates (202) is fixedly connected to a snap-fit plate (203). A servo motor (204) is fixedly connected to one side of the bidirectional threaded rod (201).
2. The horn-shaped glue injection mold structure according to claim 1, characterized in that: One end of the S-shaped glue inlet pipe (6) is connected to the glue inlet pipe (7) via a flexible hose, and two sets of hydraulic rods (8) are fixedly connected to the top of the upper mold (5).
3. The horn-shaped glue injection mold structure according to claim 1, characterized in that: The lower mold (1) is provided with several sets of ejector pins (9) inside, and a worktable (10) is provided on the bottom surface of the lower mold (1).
4. The horn-shaped glue injection mold structure according to claim 3, characterized in that: The top surface of the workbench (10) is fixedly connected to a fixing plate (11), and two sets of protective doors (12) are opened on the surface of the workbench (10).
5. The horn-shaped glue injection mold structure according to claim 4, characterized in that: Both sets of protective doors (12) are provided with handles (13) on their surfaces, and both sets of protective doors (12) are provided with observation windows (15) on one side of their surfaces.
6. The horn-shaped glue injection mold structure according to claim 3, characterized in that: The bottom surface of the workbench (10) is fixedly connected to four sets of casters (14), and each of the four sets of casters (14) is equipped with a brake pad.
7. The horn-shaped glue injection mold structure according to claim 3, characterized in that: The side of the workbench (10) is fixedly mounted with a plate (16), and the bottom surface of the mounting plate (16) is fixedly connected with several sets of hooks (17).