一种滚筒刷产品的模具结构
The combined structure of mold base, guide rail base and linear drive assembly enables efficient molding and demolding of roller brush products, solving the problems of low production efficiency and high cost, and improving product quality stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HUIJING PLASTIC PROD CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing mold technology cannot efficiently and effectively achieve the molding and demolding of roller brushes with spiral sections, resulting in low production efficiency, high costs, and unstable quality.
It adopts a combination structure of mold base, guide rail base, linear drive assembly and slider insert, and realizes the spiral separation of roller parts from molding cavity through linear motion and rotational motion. Combined with hydraulic or cylinder drive, it achieves efficient demolding.
It improved the production efficiency of roller brush products, reduced production costs, and stabilized product quality.
Smart Images
Figure CN224510288U_ABST
Abstract
Claims
1. A mould structure for a drum brush product comprising a mould base (1), characterised in that, The mold base (1) is provided with a guide rail base (4), a first linear drive assembly, a second linear drive assembly, and a first slider insert (11). The first linear drive assembly is rotatably connected to a roller (10), and the second linear drive assembly is connected to a second slider insert (12). The first slider insert (11) and the second slider insert (12) are inserted into the roller (10) from the left and right sides, respectively. The inner wall of the roller (10) is provided with a spiral groove cavity (13). A molding cavity is formed between the roller (10) and the second slider insert (12). The first slider insert (11) and The second slider insert (12) seals the ends of the molding cavity from the left and right ends respectively; the outer wall of the roller (10) is provided with a spiral guide groove (14), the guide seat (4) is provided with a through hole for the roller (10) to pass through, and the guide seat (4) is provided with a guide insert (15) inserted into the spiral guide groove (14); when the first linear drive assembly drives the roller (10) to move linearly, the roller (10) is made to rotate synchronously along the spiral guide groove (14) under the action of the guide insert (15), so as to realize the spiral separation of the roller (10) from the injection molded part in the molding cavity.
2. A mold structure for a barrel brush product according to claim 1, wherein The first linear drive assembly includes a first power cylinder (2) and a first slider group. The first slider group is connected to the piston rod of the first power cylinder (2), and a bearing (3) is provided in the first slider group. The roller component (10) is installed in the bearing (3).
3. A mould structure for a barrel brush product according to claim 2, characterised in that, The first slider group includes a first slider (5) and a second slider (6). The first slider (5) is connected to the piston rod of the first power cylinder (2). The second slider (6) and the first slider (5) are connected by bolts. The second slider (6) has a bearing mounting hole and a roller through hole. The roller through hole is aligned with the through hole on the guide rail seat (4). The bearing (3) is installed in the bearing mounting hole. The roller component (10) is installed in the bearing and passes through the roller through hole.
4. A mould structure for a barrel brush product according to claim 3, characterised in that, The mold base (1) is provided with a slide groove (16), and a connecting block (9) is provided in the slide groove (16). A guide hole is provided on the right end wall of the slide groove (16). One end of the first slider insert (11) is connected to the connecting block (9), and the first slider insert (11) passes through the guide hole. A spring (17) is provided between the left end wall of the slide groove (16) and the connecting block (9).
5. A mould structure for a barrel brush product according to claim 4, characterised in that, The first slider insert (11) includes a coarse shaft portion (18) and a thin shaft portion (19) connected to the coarse shaft portion (18). The roller component (10) is provided with a stepped structure. The stepped structure is provided with a through hole structure that communicates with the molding cavity. The diameter of the through hole structure is connected to the diameter of the thin shaft portion (19). The thin shaft portion (19) is inserted into the through hole structure.
6. A mould structure for a barrel brush product according to claim 5, wherein, The second linear drive assembly includes a second power cylinder (7) and a second slider group (8). The second slider group (8) is connected to the piston rod of the second power cylinder (7) and is also connected to the second slider insert (12). The second slider group (8) is provided with a flow channel, and the second slider insert (12) is provided with an injection hole (20). The flow channel is connected to the injection hole (20) for conveying the injection molding material to the molding cavity.
7. The mold structure for a roller brush product according to claim 1, characterized in that, The mold base (1) is also provided with a support base (21). The support base (21) is located on the right side of the guide rail base (4). The support base (21) is provided with an arc-shaped support groove for accommodating the roller component (10). The inner wall of the arc-shaped support groove is adapted to the outer wall of the roller component (10) to stabilize the posture of the roller component (10) during movement.
8. A mould structure for a barrel brush product according to claim 7, characterised in that, The mold base (1) is also provided with a baffle (22), which is located on the right side of the support base (21). The baffle (22) is provided with a through hole for the second slider insert (12) to pass through, and the diameter of the through hole is smaller than the molding outer diameter of the injection molded part, so as to block the injection molded part when the second slider insert (12) retracts.
9. A mold structure for a barrel brush product as defined in claim 1, wherein The guide rail seat (4) is provided with an installation through hole leading to its internal through hole. The guide rail insert (15) is installed in the installation through hole. The lower end of the guide rail insert (15) passes through the installation through hole and is inserted into the spiral guide rail groove (14) of the roller (10).
10. A mold structure for a barrel brush product as defined in claim 6, wherein The first power cylinder (2) and the second power cylinder (7) can be any one of hydraulic cylinder, pneumatic cylinder or electric cylinder.