Handle key injection mold and injection molding device
By designing a handle button injection mold and injection device, and utilizing guide grooves and cooling pipes to improve pivot placement efficiency, a smooth injection process is achieved. This solves the problems of high pivot placement difficulty and long cooling time, thereby improving production efficiency and yield.
Patent Information
- Application Number
- CN202520174850.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-26
AI Technical Summary
During button injection molding, the placement of the pivot is difficult, resulting in low production efficiency. Furthermore, after injection molding, it is necessary to wait for cooling and solidification before the next batch of production can begin, which also affects production efficiency.
A handle button injection mold was designed, comprising an upper mold base and a lower mold base. The lower mold base is provided with forming protrusions and pivot placement grooves. The guide groove guides the pivot placement, and combined with guide blocks and cooling pipes, the placement efficiency is improved. The injection device adopts a station turntable and a lifting injection robot to achieve a smooth injection process.
The design of the guide groove and cooling pipe improves the convenience of pivot placement and cooling efficiency, reduces ineffective waiting time, increases production efficiency and yield, and lowers production costs.
Smart Images
Figure CN223821007U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding technology, and in particular to a handle button injection mold and injection device. Background Technology
[0002] Injection molding technology is a plastic processing technology widely used in the manufacturing industry. It is the main molding equipment for making various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds.
[0003] In some button injection molding processes, through holes for mounting pivots need to be left laterally, or holes need to be drilled laterally. This greatly increases the difficulty of injection molding and reduces production efficiency. Currently, some manufacturers have adopted a two-stage injection molding technology to address this issue. The pivot is placed in the injection mold before button injection molding, thus pre-installing the pivot and reducing the need for later drilling. However, the small size of the pivot, the complex internal structure of the mold, and the high temperature of the freshly molded mold make it difficult to place the pivot into the designated slot. It is prone to falling out of the slot during placement, which is time-consuming and labor-intensive, affecting production efficiency. Furthermore, during the injection molding process, it is necessary to wait for the molded product to cool and solidify before it can be removed for the next batch of production, resulting in slow production efficiency. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model proposes a handle button injection mold and injection device, aiming to improve the production efficiency of button injection molding.
[0005] To achieve the above objectives, the technical solution adopted by the handle button injection mold of this utility model is as follows: it includes an upper mold base and a lower mold base, the upper mold base is connected to an injection groove, and the bottom of the lower mold base is provided with an ejection assembly. The lower mold base is characterized by having a forming protrusion and a pivot placement groove located at the front end of the forming protrusion. The forming protrusion is provided with a forming injection groove, and the upper mold base is provided with a forming groove. The upper mold base and the lower mold base cooperate to form a plurality of molding cavities for injection molding products. Guide blocks with guide grooves are provided at both ends of the pivot placement groove. The guide groove is located above the pivot placement groove, and the inner wall of the guide groove is provided with a guide curved surface. When a pivot is placed into the pivot placement groove, the pivot is guided by the guide groove and delivered into the pivot placement groove.
[0006] Based on the above, the beneficial effects achieved are as follows: This utility model is equipped with a pivot placement groove, which allows the pivot to be placed into the molding cavity in advance, eliminating the need for additional drilling to install the pivot after injection molding, thus reducing processing steps and improving production efficiency. Furthermore, guide blocks with guide grooves are provided at both ends of the pivot placement groove. When placing the pivot into the pivot placement groove, the guide grooves can guide the pivot, making the placement of the pivot faster and more convenient.
[0007] Furthermore, the molding protrusion includes a first molding block, a second molding block, a third molding block, and an insert. The first molding block is provided with a mounting groove that mates with the insert. The insert passes through the lower mold base and is clearance-fitted with the first molding block through the mounting groove. The first molding block, the second molding block, the third molding block, and the insert cooperate to form a cross-shaped molding injection groove. During injection molding, the gas inside the molding cavity is discharged through the gap between the insert and the molding protrusion.
[0008] Based on the above, the insert and the molding protrusion are fitted with a gap, leaving a gap between the insert and the molding protrusion. During injection molding, the gas inside the molding cavity will be discharged through this gap, which plays a role in balancing the air pressure and avoiding the formation of air bubbles, thereby improving the yield rate and reducing the production cost.
[0009] Furthermore, both the upper mold base and the lower mold base are equipped with cooling pipes inside.
[0010] Based on the above, the cooling pipe can quickly cool and mold the injection parts in the molding cavity, shorten the cooling time, and speed up production efficiency.
[0011] The technical solution adopted by the injection molding device of this utility model is as follows: the injection molding device includes a station turntable and a lifting injection molding robot. The lifting injection molding robot is provided with the upper mold base, and the station turntable is provided with a plurality of lower mold bases. The station turntable is driven by a cam divider.
[0012] Based on the above, during injection molding, the pivot is first placed in the pivot placement slot. Then, the station turntable rotates the lower mold base with the pivot to directly below the lifting injection molding robot. The lifting injection molding robot, carrying the upper mold base, presses down and completes the injection. After injection, the lifting injection molding robot, carrying the upper mold base, moves upward to reset, and the station turntable rotates to the next station for unloading. The entire injection molding process is seamless, reducing unnecessary waiting time and improving production efficiency. Moreover, the entire device only requires one upper mold base, saving manufacturing costs.
[0013] To more clearly illustrate the above-mentioned features of this utility model and the objectives it aims to achieve, the following description, in conjunction with the accompanying drawings and specific embodiments, will further explain this utility model. Attached Figure Description
[0014] Figure 1 : This is a schematic diagram of the lower mold base;
[0015] Figure 2 :for Figure 1 An enlarged structural diagram of part A;
[0016] Figure 3 : This is a schematic diagram of the upper mold base;
[0017] Figure 4 : This is a schematic diagram of the upper and lower mold bases;
[0018] Figure 5 : This is a schematic diagram of the injection molding device;
[0019] Figure 6 :for Figure 5 An enlarged structural diagram of part B;
[0020] Figure 7 : Schematic diagram a of the product structure;
[0021] Figure 8 b: A structural diagram of the product;
[0022] Explanation of reference numerals: 1 Upper mold base; 2 Lower mold base; 3 Injection groove; 4 Ejection assembly; 5 Pivot placement groove; 6 Molding protrusion; 7 Molding injection groove; 8 Molding groove; 9 Product; 10 Guide groove; 11 Guide block; 12 Guide surface; 13 Pivot; 14 Insert; 15 Cooling pipe; 16 Station turntable; 17 Lifting injection robot; 18 First molding block; 19 Second molding block; 20 Third molding block; 21 Mounting groove. Detailed Implementation
[0023] like Figures 1 to 8As shown, a technical solution for a handle button injection mold is as follows: it includes an upper mold base 1 and a lower mold base 2. The upper mold base 1 is connected to an injection groove 3, and the bottom of the lower mold base 2 is provided with an ejector assembly 4. The lower mold base 2 is characterized by having a forming protrusion 6 and a pivot placement groove 5 located at the front end of the forming protrusion 6. The forming protrusion 6 is provided with a forming injection groove 7. The upper mold base 1 is provided with a forming groove 8. The upper mold base 1 and the lower mold base 2 cooperate to form a plurality of forming cavities for injection molding products 9. The pivot placement groove 5 is provided with guide blocks 11 with guide grooves 10 at both ends. The guide grooves 10 are located above the pivot placement groove 5. The inner wall of the guide grooves 10 is provided with guide curved surfaces 12. When a pivot 13 is placed into the pivot placement groove 5, the pivot 13 is guided by the guide grooves 10 and sent into the pivot placement groove 5. By setting the pivot placement slot 5, the pivot 13 can be placed into the lower mold base 2 in advance, so that the injection-molded button does not need to be drilled separately to install the pivot 13, reducing the processing steps and improving production efficiency. In addition, the pivot placement slot 5 is provided with guide blocks 11 with guide grooves 10 at both ends. When the pivot 13 is placed into the pivot placement slot 5, the guide grooves 10 can guide the pivot 13, making the placement of the pivot 13 faster and more convenient.
[0024] Preferably, the molding protrusion includes a first molding block 18, a second molding block 19, a third molding block 20, and an insert 14. The first molding block 18 is provided with a mounting groove 21 that mates with the insert 14. The insert 14 passes through the lower mold base 2 and is in clearance fit with the first molding block 18 through the mounting groove 21. The first molding block 18, the second molding block 19, the third molding block 20, and the insert 14 cooperate to form a cross-shaped molding injection groove 7. The injection groove 7 is used for injection molding the pressing part of the button. During injection molding, the gas inside the molding cavity is discharged through the gap between the insert 14 and the molding protrusion 6. The gap fit between the insert 14 and the molding protrusion 6 leaves a gap between them. During injection molding, the gas inside the molding cavity is discharged through this gap, which balances the air pressure, prevents air bubbles, improves the yield rate, and reduces production costs.
[0025] Preferably, both the upper mold base 1 and the lower mold base 2 are provided with cooling pipes 15. The cooling pipes 15 can quickly cool and mold the injection molded parts in the molding cavity, shorten the cooling time, and speed up production efficiency.
[0026] The technical solution adopted by the injection molding device of this utility model is as follows: the injection molding device includes a station turntable 16 and a lifting injection molding robot 17. The lifting injection molding robot 17 is provided with an upper mold base 1, and the station turntable 16 is provided with a plurality of lower mold bases 2. The station turntable 16 is driven by a cam divider. The cam divider is a high-precision rotary device whose main function is to convert continuous input motion into intermittent output motion, thereby realizing precise indexing operation. It is a conventional machine in the field of machining.
[0027] The specific implementation method of this embodiment is as follows: When performing injection molding, the pivot 13 is first placed in the pivot placement slot 5. Then, the station turntable 16 rotates the lower mold base 2 with the pivot 13 to directly below the lifting injection molding robot 17. The lifting injection molding robot 17 presses down with the upper mold base 1 to complete the injection molding. After the injection molding is completed, the lifting injection molding robot 17 moves the upper mold base 1 up to reset. The station turntable 16 moves to the next station to unload the material. Then, the above process is repeated for the next round of injection molding.
[0028] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.
Claims
1. A handle button injection mold, comprising an upper mold base (1) and a lower mold base (2), wherein the upper mold base (1) is connected to an injection groove (3), and the lower mold base (2) is provided with an ejector assembly (4) at its bottom, characterized in that: The lower mold base (2) is provided with a forming protrusion (6) and a pivot placement groove (5) provided at the front end of the forming protrusion (6). The forming protrusion (6) is provided with a forming injection groove (7). The upper mold base (1) is provided with a forming groove (8). The upper mold base (1) and the lower mold base (2) cooperate to form a plurality of forming cavities for injection molding products (9). The pivot placement groove (5) is provided with guide blocks (11) with guide grooves (10) at both ends. The guide grooves (10) are located above the pivot placement groove (5). The inner wall of the guide grooves (10) is provided with guide curved surfaces (12). When the pivot (13) is placed into the pivot placement groove (5), the pivot (13) is guided by the guide grooves (10) and sent into the pivot placement groove (5).
2. The injection mold for a handle button according to claim 1, characterized in that: The molding protrusion includes a first molding block (18), a second molding block (19), a third molding block (20), and an insert (14). The first molding block (18) is provided with a mounting groove (21) that mates with the insert (14). The insert (14) passes through the lower mold base (2) and is clearance-fitted with the first molding block (18) through the mounting groove (21). The first molding block (18), the second molding block (19), the third molding block (20), and the insert (14) cooperate to form a cross-shaped molding injection groove (7). During injection molding, the gas inside the molding cavity is discharged through the gap between the insert (14) and the molding protrusion (6).
3. The injection mold for a handle button according to claim 1, characterized in that: Cooling pipes (15) are provided inside both the upper mold base (1) and the lower mold base (2).
4. An injection molding device for injection molding a handle button injection mold as described in claim 1, characterized in that: The injection molding device includes a station turntable (16) and a lifting injection molding robot (17). The lifting injection molding robot (17) is provided with the upper mold base (1), and the station turntable (16) is provided with a plurality of lower mold bases (2). The station turntable (16) is driven by a cam divider.