An in-house flow channel slider molding die for a handle skeleton soft rubber component

Abstract

This utility model discloses an internal flow channel slider molding mold for a handle skeleton soft rubber component, including an upper mold and a lower mold. The handle skeleton is placed on the lower mold and has a molding cavity. The lower mold has a horizontally sliding side module and a liftable support rod. The handle skeleton, support rod, and side module form the molding cavity. The upper mold has an injection channel, and the side module has an inlet channel. The injection channel is connected to the molding cavity through the inlet channel. The side module has an installation cavity, and the installation cavity has a debonding mechanism. The debonding mechanism includes a base plate, a lifting block on the base plate, and a debonding rod connected to the lifting block. The side module forms a debonding channel that connects to the inlet channel. The debonding rod is slidably disposed in the debonding channel. This utility model allows the cold sprue to separate from the handle skeleton first, and then ejects the remaining cold sprue, making the demolding of the cold sprue from the handle skeleton cleaner and avoiding burrs.

Description

Technical Field

[0001] This utility model relates to the field of molding die technology, and in particular to a built-in flow channel slider molding die for a handle skeleton soft rubber component. Background Technology

[0002] In the production of handle frames, especially composite handle frames with soft rubber grips, injection molding is usually used to coat the surface of a rigid frame with soft rubber material to improve grip comfort and anti-slip performance. Such handle frames have high requirements for the bonding strength between the soft rubber and the frame, the molding precision of the soft rubber, and the appearance quality.

[0003] In common soft rubber injection molds for handle frames, after molding, a section of solidified cold slug will remain in the runner. The existing molds mainly deal with this cold slug by directly ejecting it with ejector pins. Since the cold slug and the handle frame are still connected at the gate, if the ejection angle is not right, burrs or scratches are easily left on the surface of the handle frame during ejection, affecting the quality of the handle frame. Utility Model Content

[0004] The purpose of this invention is to provide a built-in flow channel slider molding mold for soft rubber parts of handle skeleton, which allows the cold slub head to separate from the handle skeleton first, and then ejects the remaining cold slub head, making the demolding of the cold slub head and handle skeleton cleaner and avoiding the generation of burrs.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a built-in flow channel slider molding mold for a handle skeleton soft rubber component, comprising an upper mold and a lower mold, wherein a handle skeleton is placed on the lower mold, and a horizontally sliding side module and a liftable support rod are provided on the lower mold. The side module abuts against one side of the handle skeleton, and the support rod supports the bottom of the handle skeleton and abuts against the other side of the handle skeleton. The handle skeleton, the support rod, and the side module form a molding cavity. The upper mold is provided with an injection channel, and the side module is provided with an inlet channel. The side module is connected to the molding cavity via a glue inlet channel; an installation cavity is provided within the installation cavity, and a de-glue mechanism is provided within the installation cavity; the de-glue mechanism includes a base plate, a lifting block on the base plate, and a de-glue rod connected to the lifting block; a de-glue channel is formed within the side module, connecting to the glue inlet channel, and the de-glue rod is slidably disposed within the de-glue channel; a lifting groove is provided within the lower mold, and a push rod is movably disposed within the lifting groove; a connecting groove is provided at the bottom of the base plate; when the lifting groove and the connecting groove are aligned, the push rod passes through the connecting groove and forces the lifting block to drive the de-glue rod into the de-glue channel.

[0006] By adopting the above technical solution, when the mold is opened, the upper mold is driven to rise, and the side module slides outward to separate from the handle frame. The cold slub head is separated from the molded soft rubber part on the handle frame in the horizontal direction. When the lifting groove is aligned with the connecting groove, the ejector rod in the lower mold passes through the connecting groove to drive the bottom plate and the lifting block to rise, which drives the degumming rod to push out the cold slub head remaining in the glue flow channel. This achieves quick and clean separation of waste material, prevents burrs, and improves production efficiency and automation.

[0007] The present invention is further configured such that: a guide rail is vertically arranged on the inner wall of the mounting cavity, and a corresponding guide groove is provided on the lifting block, wherein the guide rail and the guide groove are slidably engaged.

[0008] By adopting the above technical solution, the sliding cooperation between the guide rail and the guide groove provides precise guidance for the lifting block's lifting movement, preventing the lifting block from deflecting or getting stuck during the ejection process, ensuring that the degumming rod can stably and vertically enter and exit the glue inlet channel, and improving the reliability of the ejection action.

[0009] The present invention is further configured such that: a first elastic element is provided in the mounting cavity, one end of the first elastic element abuts against the inner wall of the mounting cavity, and the other end abuts against the lifting block, so that the lifting block tends to move away from the glue inlet channel.

[0010] By adopting the above technical solution, the first elastic element applies a spring force away from the glue inlet channel to the lifting block after the push rod is reset, so that the glue release rod automatically retracts to the bottom of the glue inlet channel, preparing for the next ejection action.

[0011] The present invention is further configured such that: a liftable stripping template is provided on the lower mold, a slider is slidably provided on the stripping template, the support rod is hinged to the slider, and the support rod slides through the lower mold and its upper end abuts against and supports the handle frame.

[0012] By adopting the above technical solution, since the support rod slides through the lower mold and its upper end abuts against the handle frame, the support rod applies an upward thrust to the handle frame during the upward process, which helps the handle frame to detach from the lower mold and improves the smoothness of demolding.

[0013] The present invention is further configured such that: the glue inlet channel includes a glue inlet section and a glue outlet section, and the glue outlet section is inclined.

[0014] By adopting the above technical solution, on the one hand, the molten rubber can be guided to enter the molding cavity more smoothly, reducing flow resistance; on the other hand, the inclined dispensing section forms a certain angle with the ejection direction of the de-adhesive rod, which is conducive to the de-adhesive rod pushing the cold material head out of the inclined section cleanly and completely when it ejects, avoiding rubber residue or adhesion.

[0015] The present invention is further configured such that: a second elastic member is provided between the lower mold and the ejector platen, one end of the second elastic member abuts against the lower mold and the other end abuts against the ejector platen, and the second elastic member causes the ejector platen to tend to move away from the lower mold.

[0016] By adopting the above technical solution, the second elastic element applies a spring force away from the lower mold to the template block after the template is reset, so that the support rod automatically retracts to the lower mold and avoids interference with the handle frame during the next mold closing.

[0017] The present invention is further configured such that: a lower positioning block is provided on the lower mold, an upper positioning block is provided on the upper mold, the handle frame is disposed on the lower positioning block, and when the lower mold and the upper mold are in the mold-closed state, the lower positioning block and the upper positioning block abut against the handle frame from the upper and lower ends respectively.

[0018] By adopting the above technical solution, the handle skeleton is clamped and fixed between the upper positioning block and the lower positioning block. During the injection molding process, it can resist the impact of high pressure material, prevent the handle skeleton from shifting or deforming, and ensure the uniformity of wall thickness and molding accuracy of the soft rubber parts.

[0019] The present invention is further configured such that: the handle frame is provided with a positioning groove, the lower positioning block is provided with a positioning boss, and the positioning boss is inserted into the positioning groove.

[0020] By adopting the above technical solution, the positioning boss on the lower positioning block is inserted into the positioning groove in the middle of the handle skeleton, which realizes the precise radial positioning of the handle skeleton on the lower mold, prevents the handle skeleton from rotating or shifting laterally during the injection molding process, and further improves the positional consistency of the soft rubber parts relative to the skeleton.

[0021] The present invention is further configured such that: an inclined guide post is fixedly provided on the upper mold, and an inclined guide hole is provided on the side module, with the inclined guide post passing through the inclined guide hole.

[0022] By adopting the above technical solution, when the mold is opened, the upper mold rises and drives the inclined guide post to move upward. The inclined guide post drives the side module to slide in the horizontal direction through the inclined guide hole, so that the side module is separated from the handle frame, and the side core pulling demolding is realized.

[0023] The present invention is further configured such that: a sliding groove is horizontally provided on the lower mold, and a protrusion is provided on the side module, the protrusion being placed in the sliding groove.

[0024] By adopting the above technical solution, the sliding fit between the protrusion and the horizontal slide groove restricts the degree of freedom of the side module along the mold opening direction, so that it can only slide horizontally along the slide groove direction, ensuring that the lifting motion of the upper mold is converted into the horizontal motion of the side module, and separating the cold slub head from the handle skeleton.

[0025] In summary, this utility model has the following beneficial effects: By setting a degumming mechanism within the side module, the degumming mechanism includes a base plate, a lifting block on the base plate, and a degumming rod connected to the lifting block. The side module forms a degumming channel that connects to the glue inlet channel. The degumming rod is slidably positioned within the degumming channel. During demolding, the upper mold moves away from the lower mold, allowing the side module to slide horizontally. The cold slub head separates from the handle frame first. Then, the ejector rod passes through the connecting groove on the base plate, driving the lifting block to rise and causing the degumming rod to automatically eject the remaining cold slub head in the glue inlet channel. The entire process eliminates the need for manual removal of gate waste, achieving rapid and clean separation of waste materials. This effectively improves the automation level and efficiency of production. Since the cold slub head has already separated from the handle frame during the horizontal sliding of the side module, the ejection action of the degumming rod is performed independently, avoiding the burrs or damage to the handle frame surface caused by directly ejecting the slub head in traditional structures, thus ensuring the molding quality of the soft rubber parts. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of the present invention.

[0027] Figure 2 This is a structural schematic diagram of the lower mold, side module, and lower positioning block of this utility model.

[0028] Figure 3 yes Figure 1 A magnified view of A in the middle.

[0029] Figure 4 This is a structural schematic diagram of the lower mold and lower positioning block of this utility model.

[0030] Figure 5 This is a cross-sectional view of the lower mold, side module, and lower positioning block of this utility model.

[0031] Figure 6 yes Figure 5 A magnified view of B in the middle.

[0032] Figure 7 This is an exploded view of the side module of this utility model.

[0033] Figure 8 This is a schematic diagram of the handle frame of this utility model.

[0034] Figure 9 This is a cross-sectional view of the side module of this utility model.

[0035] In the diagram: 1. Upper mold; 11. Injection channel; 12. Upper positioning block; 13. Angled guide post; 2. Lower mold; 21. Lifting groove; 22. Ejector rod; 23. Lower positioning block; 231. Positioning boss; 24. Slide groove; 25. Second elastic element; 3. Handle frame; 31. Molding cavity; 32. Positioning groove; 33. Clearance gap; 4. Side module; 41. Inlet channel; 411. Inlet section; 412. Outlet section; 42. Angled guide hole; 43. Mounting cavity; 44. Debonding channel; 45. Protrusion; 5. Debonding mechanism; 51. Base plate; 511. Connecting groove; 52. Lifting block; 521. Guide groove; 53. Debonding rod; 54. Guide rail; 55. First elastic element; 6. Debonding template; 61. Slider; 62. Support rod. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] like Figures 1 to 7 As shown, this utility model provides an internal flow channel slider molding die for a handle frame soft rubber component, including an upper die 1 and a lower die 2. A handle frame 3 is placed on the lower die 2. The lower die 2 is provided with a horizontally sliding side module 4 and an inclined sliding support rod 62. The side module 4 abuts against one side of the handle frame 3, and the support rod 62 supports the bottom of the handle frame 3 and abuts against the other side of the handle frame 3. The handle frame 3, the support rod 62, and the side module 4 together form a molding cavity 31. The upper die 1 is provided with an injection channel 11, and the side module 4 is provided with an inlet channel 41. The injection channel 11 communicates with the molding cavity 31 through the inlet channel 41. The side module 4 has an installation cavity 43, and the installation cavity 43 has a degumming mechanism 5. The degumming mechanism 5 includes a base plate 51, a lifting block 52 on the base plate 51, and a degumming rod 53 connected to the lifting block 52. The side module 4 also has a degumming channel 44 that connects to the glue inlet channel 41. The degumming rod 53 is slidably disposed in the degumming channel 44. The lower mold 2 has a lifting groove 21, and a push rod 22 is movably disposed in the lifting groove 21. The bottom of the base plate 51 has a connecting groove 511. When the lifting groove 21 and the connecting groove 511 are aligned, the push rod 22 passes through the connecting groove 511 and drives the lifting block 52 to rise, thereby driving the degumming rod 53 to be pushed out along the degumming channel 44.

[0038] When the mold is opened, the upper mold 1 is driven to rise and the side module 4 slides outward, separating the cold slub head from the soft rubber part formed on the handle frame 3 in the horizontal direction. When the lifting groove 21 is aligned with the connecting groove 511, the ejector rod 22 in the lower mold 2 passes through the connecting groove 511 to drive the base plate 51 and the lifting block 52 to rise, which drives the degumming rod 53 to push out the cold slub head remaining in the glue inlet channel 41, realizing the quick and clean separation of waste materials, preventing burrs, and improving production efficiency and automation.

[0039] like Figure 7As shown, regarding the guidance of the lifting block 52, a guide rail 54 is vertically installed on the inner wall of the mounting cavity 43, and a corresponding guide groove 521 is provided on the lifting block 52. The guide rail 54 and the guide groove 521 are slidably engaged. The sliding engagement between the guide rail 54 and the guide groove 521 provides precise guidance for the lifting movement of the lifting block 52, preventing the lifting block 52 from deflecting or getting stuck during the ejection process, ensuring that the degumming rod 53 can stably and vertically enter and exit the degumming channel 44, and improving the reliability of the ejection action.

[0040] like Figure 7 As shown, as a further explanation of the debonding mechanism 5, a first elastic element 55 is provided in the mounting cavity 43. One end of the first elastic element 55 abuts against the inner wall of the mounting cavity 43, and the other end abuts against the lifting block 52, so that the lifting block 52 tends to move away from the glue inlet channel 41. After the push rod 22 is reset, the first elastic element 55 applies a spring force to the lifting block 52 in a direction away from the glue inlet channel 41, so that the debonding rod 53 automatically retracts to the bottom of the debonding channel 44, preparing for the next ejection action.

[0041] like Figure 5 As shown, the lower mold 2 is provided with a liftable demolding template 6, and a slider 61 is slidably provided on the demolding template 6. A support rod 62 is hinged to the slider 61 and slides through the lower mold 2. Its upper end abuts against and supports the handle frame 3. When the demolding template 6 rises, since the support rod 62 slides through the lower mold 2 and its upper end abuts against the handle frame 3, the support rod 62 applies an upward pushing force to the handle frame 3 during the rising process, which helps the handle frame 3 to detach from the lower mold 2 and improves the smoothness of demolding.

[0042] like Figure 9 As shown, the glue inlet channel 41 includes a glue inlet section 411 and a glue outlet section 412. The glue outlet section 412 is inclined. The inclined glue outlet section 412 can guide the molten glue to enter the molding cavity 31 more smoothly and reduce the flow resistance. At the same time, the inclined glue outlet section 412 forms a certain angle with the ejection direction of the stripping rod 53, which is conducive to the stripping rod 53 pushing the cold material head out of the inclined section cleanly and completely when ejecting, avoiding glue residue or adhesion.

[0043] like Figure 5 As shown, a second elastic element 25 is provided between the lower mold 2 and the ejector plate 6. One end of the second elastic element 25 abuts against the lower mold 2, and the other end abuts against the ejector plate 6. The second elastic element 25 causes the ejector plate 6 to tend to move away from the lower mold 2. The second elastic element 25 is compressed and stores energy when the mold is closed, and releases the elastic force when the mold is opened, driving the ejector plate 6 away from the lower mold 2, so that the support rod 62 automatically retracts to the lower mold 2, avoiding interference with the handle frame 3 when the mold is closed again.

[0044] like Figure 4 and Figure 5As shown, regarding the positioning of the handle frame 3, the lower mold 2 is provided with a lower positioning block 23, and the upper mold 1 is provided with an upper positioning block 12. In the mold-closed state, the handle frame 3 is clamped and fixed between the upper positioning block 12 and the lower positioning block 23. During the injection molding process, it can resist the impact of high pressure material, prevent the handle frame 3 from shifting or deforming, and ensure the uniformity of wall thickness and molding accuracy of the soft rubber parts.

[0045] like Figure 8 As shown, the handle frame 3 has a positioning groove 32 in the middle and a positioning boss 231 on the lower positioning block 23. The positioning boss 231 is inserted into the positioning groove 32 and the support rod 62 passes through the positioning boss 231. The positioning boss 231 on the lower positioning block 23 is inserted into the positioning groove 32 in the middle of the handle frame 3, which realizes the precise radial positioning of the handle frame 3 on the lower mold 2, prevents the handle frame 3 from rotating or shifting laterally during the injection molding process, and further improves the positional consistency of the soft rubber parts relative to the frame.

[0046] Furthermore, the height of the positioning groove 32 is less than that of the positioning boss 231, so that a clearance gap 33 is formed between the two ends of the handle frame 3 and the lower positioning block 23. The height of the positioning boss 231 is greater than the depth of the positioning groove 32, so that the top of the positioning boss 231 contacts the bottom of the positioning groove 32 first, while a clearance gap 33 is left between the two ends of the handle frame 3 and the lower positioning block 23. This gap avoids the two ends of the handle frame 3 from being excessively pressed by the lower positioning block 23 and deforming, thus improving the quality of the handle frame 3.

[0047] An inclined guide post 13 is fixedly installed on the upper mold 1, and an inclined guide hole 42 is opened on the side module 4. The inclined guide post 13 passes through the inclined guide hole 42. When the mold is opened, the upper mold 1 rises and drives the inclined guide post 13 to move upward. The inclined guide post 13 drives the side module 4 to slide in the horizontal direction through the inclined guide hole 42, so that the side module 4 is separated from the handle frame 3, realizing the side core pulling demolding.

[0048] like Figure 4 and Figure 7 As shown, a horizontal groove 24 is provided on the lower mold 2, and a protrusion 45 is provided on the side module 4. The protrusion 45 is placed in the groove 24. The sliding cooperation between the protrusion 45 and the horizontal groove 24 restricts the degree of freedom of the side module 4 along the mold opening direction, so that it can only slide horizontally along the direction of the groove 24, ensuring that the lifting motion of the upper mold 1 is converted into the horizontal motion of the side module 4, and separating the cold slug head from the handle skeleton 3.

[0049] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A mold for forming a built-in flow channel slider for a soft rubber component of a handle skeleton, comprising an upper mold (1) and a lower mold (2), characterized in that: A handle frame (3) is placed on the lower mold (2). A horizontally sliding side module (4) and a liftable support rod (62) are provided on the lower mold (2). The side module (4) abuts against one side of the handle frame (3). The support rod (62) supports the bottom of the handle frame (3) and abuts against the other side of the handle frame (3). The handle frame (3), the support rod (62) and the side module (4) form a molding cavity (31). The upper mold (1) is provided with a glue injection channel (11), and the side module (4) is provided with a glue inlet channel (41). The glue injection channel (11) is connected to the molding cavity (31) through the glue inlet channel (41). The side module (4) is provided with an installation cavity (43), and the installation cavity (43) is provided with a degumming mechanism (5); The degumming mechanism (5) includes a base plate (51), a lifting block (52) on the base plate (51), and a degumming rod (53) connected to the lifting block (52). The side module (4) forms a degumming channel (44) that connects to the glue inlet channel (41). The degumming rod (53) is slidably disposed in the degumming channel (44). The lower mold (2) is provided with a lifting groove (21), and a push rod (22) is movably arranged in the lifting groove (21). The bottom plate (51) is provided with a connecting groove (511). When the lifting groove (21) and the connecting groove (511) are aligned, the push rod (22) passes through the connecting groove (511) and forces the lifting block (52) to drive the degumming rod (53) into the degumming channel (44).

2. The built-in flow channel slider molding die for a handle skeleton soft rubber component according to claim 1, characterized in that: The inner wall of the mounting cavity (43) is vertically provided with a guide rail (54), and the lifting block (52) is provided with a corresponding guide groove (521). The guide rail (54) and the guide groove (521) are slidably engaged.

3. The built-in flow channel slider molding die for a handle skeleton soft rubber component according to claim 1, characterized in that: The mounting cavity (43) is provided with a first elastic element (55), one end of which abuts against the inner wall of the mounting cavity (43), and the other end abuts against the lifting block (52), so that the lifting block (52) tends to move away from the glue inlet channel (41).

4. The built-in flow channel slider molding die for a handle skeleton soft rubber component according to claim 1, characterized in that: The lower mold (2) is provided with a liftable stripping template (6), and a slider (61) is slidably provided on the stripping template (6). The support rod (62) is hinged to the slider (61), and the support rod (62) slides through the lower mold (2) and its upper end abuts against and supports the handle frame (3).

5. The built-in flow channel slider molding die for a handle skeleton soft rubber component according to claim 1, characterized in that: The glue inlet channel (41) includes a glue inlet section (411) and a glue outlet section (412), and the glue outlet section (412) is inclined.

6. The built-in flow channel slider molding die for a handle skeleton soft rubber component according to claim 4, characterized in that: A second elastic element (25) is provided between the lower mold (2) and the ejector plate (6). One end of the second elastic element (25) abuts against the lower mold (2) and the other end abuts against the ejector plate (6). The second elastic element (25) causes the ejector plate (6) to tend to move away from the lower mold (2).

7. The built-in flow channel slider molding die for a handle skeleton soft rubber component according to claim 1, characterized in that: The lower mold (2) is provided with a lower positioning block (23), the upper mold (1) is provided with an upper positioning block (12), the handle frame (3) is set on the lower positioning block (23), and when the lower mold (2) and the upper mold (1) are in the mold closing state, the lower positioning block (23) and the upper positioning block (12) abut against the handle frame (3) from the upper and lower ends respectively.

8. The built-in flow channel slider molding die for a handle skeleton soft rubber component according to claim 7, characterized in that: The handle frame (3) is provided with a positioning groove (32), the lower positioning block (23) is provided with a positioning boss (231), the support rod (62) passes through the positioning boss (231), and the positioning boss (231) is inserted into the positioning groove (32).

9. The built-in flow channel slider molding die for a handle skeleton soft rubber component according to claim 1, characterized in that: An inclined guide post (13) is fixedly provided on the upper mold (1), and an inclined guide hole (42) is provided on the side module (4), with the inclined guide post (13) passing through the inclined guide hole (42).

10. The built-in flow channel slider molding die for a handle skeleton soft rubber component according to claim 1, characterized in that: The lower mold (2) is horizontally provided with a sliding groove (24), and the side module (4) is provided with a protrusion (45), which is placed in the sliding groove (24).

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