Anti-falling split mold compaction pin support sleeve

Abstract

The utility model discloses a kind of anti-falling split mould compaction pin support sleeve, including compaction pin piece, one end of the compaction pin piece is detachably connected with transmission connection component, to drive the movement of compaction pin piece inside mould using transmission connection component, support sleeve assembly is sleeved on the outer wall of the compaction pin piece and transmission connection component, to realize stable support compaction pin piece and transmission connection component, avoid bending or shaking when compaction pin piece is stressed due to length is too long, the stable movement of compaction pin piece inside support sleeve assembly is driven by transmission connection component, guarantee the precision of compaction pin piece in movement.The utility model designs support sleeve assembly as split structure, reduce the processing difficulty and manufacturing cost of long size support sleeve, while cooperating with the multi-point support design of retaining sleeve, effectively avoid the stress bending of compaction pin piece, improve its movement stability.

Description

Technical Field

[0001] This utility model relates to the field of mold application technology, and in particular to a split mold compaction pin support sleeve that prevents detachment. Background Technology

[0002] In the mold processing and production process, the compaction pin is a key component to ensure the forming accuracy of the workpiece. It needs to achieve stable movement inside the mold to complete the positioning and compaction of the workpiece.

[0003] In existing technologies, the support sleeves that are matched with the compaction pins are mostly integrated structures. When the compaction pins are long, the integrated support sleeves are difficult to process and costly. Moreover, during long-term use, the connection between the compaction pins and the transmission components is prone to loosening and falling off, which leads to a decrease in the movement accuracy of the compaction pins and thus affects the forming quality of the workpiece. At the same time, gas is prone to accumulate inside the transmission components when they are connected, which hinders the assembly and smooth movement between the components and further reduces the overall stability and service life of the mold.

[0004] Therefore, this utility model proposes a split mold compaction pin support sleeve to prevent detachment. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a split mold compaction pin support sleeve that prevents detachment, so as to solve the problems of high processing cost, easy detachment of connection and poor movement of existing support sleeves, and improve the movement accuracy and stability of compaction pin in the mold.

[0006] To solve the above technical problems, the present invention adopts a technical solution as follows: a split mold compaction pin support sleeve for preventing detachment is provided, including a compaction pin, one end of which is detachably connected to a transmission connection assembly, so as to drive the compaction pin to move inside the mold using the transmission connection assembly. A support sleeve assembly is fitted onto the outer wall of the compaction pin and the transmission connection assembly to provide stable support for the compaction pin and the transmission connection assembly, and to prevent the compaction pin from bending or shaking under force due to its excessive length. The compaction pin is driven to move stably inside the support sleeve assembly by the transmission connection component, ensuring the accuracy of the compaction pin during movement.

[0007] The present invention is further configured such that: the transmission connection assembly includes a primary connecting rod and a secondary connecting rod; the connection end of the compacting pin and the transmission connection assembly is provided with a limiting end, and the limiting end is located inside the secondary connecting rod; at the same time, the compacting pin passes through the secondary connecting rod; the end face of the primary connecting rod is inserted into the interior of the secondary connecting rod through its provided extrusion protrusion and abuts against the limiting end.

[0008] By utilizing the limiting end's limiting effect within the secondary connecting rod, the axial displacement of the compaction pin within the secondary connecting rod can be precisely restricted, preventing the compaction pin from detaching from the secondary connecting rod. Simultaneously, the primary connecting rod inserts into the secondary connecting rod through the extrusion protrusion and abuts against the limiting end, forming a rigid transmission link of "primary connecting rod - limiting end - compaction pin." This ensures that the driving force of the transmission connection assembly on the compaction pin can be stably transmitted, avoiding driving force loss due to connection gaps, thereby guaranteeing the synchronization and accuracy of the compaction pin's movement.

[0009] The present invention is further configured such that: a retaining edge is provided on the inner wall of the connection port of the secondary connecting rod and the primary connecting rod, and the retaining edge engages with the groove opened at the corresponding position of the extrusion protrusion.

[0010] Through the above technical solution, the engagement structure of the locking edge and the locking groove can form a double limiting in both the circumferential and axial directions: in the circumferential direction, the locking edge embedded in the locking groove can limit the relative rotation of the primary connecting rod and the secondary connecting rod, ensuring stable torque transmission during the transmission process; in the axial direction, the engagement structure can prevent the primary connecting rod from coming out of the secondary connecting rod, and together with the pressing action of the extrusion protrusion on the limiting end, a "double anti-detachment" guarantee is formed, which greatly improves the connection stability of the transmission connection component.

[0011] The present invention is further configured such that: an exhaust hole is provided through the outer wall of the secondary connecting rod near the middle of the extrusion protrusion.

[0012] Through the above technical solution, when the extrusion protrusion of the first-stage connecting rod is inserted into the second-stage connecting rod, the air originally retained in the second-stage connecting rod will be pushed towards the port by the extrusion protrusion. At this time, the vent can timely discharge the compressed air generated by the extrusion, avoiding the obstruction of the insertion action of the extrusion protrusion due to air resistance, and ensuring smooth assembly of the first-stage connecting rod and the second-stage connecting rod. At the same time, during the mold operation, the vent can also balance the air pressure inside the second-stage connecting rod and the outside, preventing the internal air pressure fluctuation caused by temperature changes from affecting the fitting accuracy between components, and ensuring the smooth movement of the transmission connection component.

[0013] The present invention is further configured such that: the support sleeve assembly includes a support sleeve A and a support sleeve B sleeved to the outer wall of the transmission connection assembly, the end face of the support sleeve B is welded with a pre-closed end cap, and the end face of the end cap is provided with a retaining sleeve.

[0014] The above technical solution splits the support sleeve assembly into a separate structure consisting of support sleeve A, support sleeve B, and end caps. Compared with the traditional integrated support sleeve, this significantly reduces the processing difficulty of long support sleeves, not only reducing processing time and costs but also improving the processing accuracy of individual support sleeves. The end caps are welded to the end face of support sleeve B, which can axially seal the transmission components inside support sleeve B, preventing foreign objects from entering, and providing a stable installation reference for the retaining sleeve. The retaining sleeve can further provide radial support for the through-through compaction pin. Together with the support of support sleeve A and support sleeve B for the transmission connection components, a "multi-point support" structure is formed, preventing the compaction pin from bending or shaking due to excessive length.

[0015] The present invention is further configured such that the compaction pin passes through the end cap and the retaining sleeve, and is smoothly fitted to the inner wall of the end cap and the retaining sleeve.

[0016] Through the above technical solution, the smooth fit between the compacting pin and the end cap and the inner wall of the retaining sleeve can reduce the frictional resistance during the movement of the compacting pin, reduce component wear, and extend the service life of the compacting pin. On the other hand, the extremely small gap of the smooth fit can limit the radial displacement of the compacting pin, ensure that the compacting pin always moves along the preset axis, further improve its movement accuracy, and avoid workpiece forming size deviation caused by radial wobbling.

[0017] The present invention is further configured such that: a protrusion is provided at the connection between the end cap and the port of the support sleeve B, and the outer wall of the protrusion is tightly fitted to the inner wall of the port of the support sleeve B.

[0018] Through the above technical solution, the protrusion can achieve "positioning assembly" of the end cap and the support sleeve B. During assembly, the protrusion is first inserted into the inner wall of the port of the support sleeve B, which can quickly calibrate the coaxiality of the end cap and the support sleeve B, ensuring the accurate installation position of the end cap. At the same time, the tight fit between the outer wall of the protrusion and the inner wall of the port of the support sleeve B can enhance the sealing of the connection between the two, preventing foreign objects such as dust and coolant in the mold working environment from entering the interior of the support sleeve through the gap between the end cap and the support sleeve, avoiding foreign objects causing jamming or wear of the transmission components, and ensuring the cleanliness and stability of the internal structure of the support sleeve assembly.

[0019] The beneficial effects of this utility model are as follows: 1. The present invention proposes a split mold compaction pin support sleeve to prevent detachment. By designing the support sleeve assembly as a split structure, the processing difficulty and manufacturing cost of long-size support sleeves are reduced. At the same time, in conjunction with the "multi-point support" design of the retaining sleeve, the compaction pin is effectively prevented from bending under force, thus improving its movement stability. 2. The split mold compaction pin support sleeve proposed in this utility model forms a double anti-dislodgement guarantee through the tight fit of the extrusion protrusion-limiting end and the snap-fit ​​structure of the snap-fit ​​edge-slot, which solves the problem of easy loosening and dislodgement of the transmission connection components. At the same time, the design of the vent hole eliminates air resistance during assembly and movement, ensuring smooth transmission, further improving the movement accuracy of the compaction pin, and ensuring the quality of the workpiece processed by the mold. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a split mold compaction pin support sleeve for preventing detachment according to this utility model; Figure 2 This is a cross-sectional view of a split mold compaction pin support sleeve for preventing detachment according to this utility model; Figure 3 This is an exploded view of the support sleeve assembly in the split mold compaction pin support sleeve for preventing detachment according to this utility model; Figure 4 This is an exploded view of the transmission connection component in the split mold compaction pin support sleeve for preventing detachment according to this utility model. Figure 5 This is a cross-sectional view of the support sleeve in the prior art.

[0021] In the figure: 1. Support sleeve assembly; 11. Support sleeve A; 12. Support sleeve B; 13. End cap; 14. Retaining sleeve; 2. Transmission connection assembly; 21. Primary connecting rod; 211. Extrusion protrusion; 212. Slot; 22. Secondary connecting rod; 221. Vent hole; 222. Edge clamp; 3. Compacting pin; 31. Limiting end. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0023] like Figures 1-4As shown, a split-type mold compaction pin support sleeve for preventing detachment includes a compaction pin 3. One end of the compaction pin 3 is detachably connected to a transmission connection assembly 2, so as to drive the movement of the compaction pin 3 inside the mold using the transmission connection assembly 2. The transmission connection assembly 2 includes a primary connecting rod 21 and a secondary connecting rod 22. The connection end of the compaction pin 3 and the transmission connection assembly 2 is provided with a limiting end 31, and the limiting end 31 is located inside the secondary connecting rod 22. At the same time, the compaction pin 3 passes through the secondary connecting rod 22, and the end face of the primary connecting rod 21 is inserted into the interior of the secondary connecting rod 22 through its extrusion protrusion 211. The first-stage connecting rod 21 is pressed against the limiting end 31. By utilizing the limiting end 31 inside the second-stage connecting rod 22, the axial displacement of the compacting pin 3 within the second-stage connecting rod 22 can be precisely limited, preventing the compacting pin 3 from detaching from the second-stage connecting rod 22. At the same time, the first-stage connecting rod 21 is inserted into the second-stage connecting rod 22 through the extrusion protrusion 211 and pressed against the limiting end 31, forming a rigid transmission link of "first-stage connecting rod - limiting end - compacting pin". This ensures that the driving force of the transmission connection assembly 2 to the compacting pin 3 can be stably transmitted, avoiding the loss of driving force due to connection gaps, thereby ensuring the synchronicity and accuracy of the movement of the compacting pin 3.

[0024] like Figure 2 and Figure 4 As shown, a retaining edge 222 is provided on the inner wall of the connection port between the secondary connecting rod 22 and the primary connecting rod 21. The retaining edge 222 engages with the corresponding slot 212 opened on the extrusion protrusion 211. The engagement structure of the retaining edge 222 and the slot 212 can form a double limiting in both the circumferential and axial directions: In the circumferential direction, the retaining edge 222 embedded in the slot 212 can limit the relative rotation between the primary connecting rod 21 and the secondary connecting rod 22, ensuring stable torque transmission during the transmission process; In the axial direction, the engagement structure can prevent the primary connecting rod 21 from coming out of the secondary connecting rod 22. Combined with the pressing action of the extrusion protrusion 211 on the limiting end 31, a "double anti-detachment" guarantee is formed, which greatly improves the connection stability of the transmission connection assembly 2. A vent 221 is provided through the outer wall of the secondary connecting rod 22 near the middle of the extrusion protrusion 211. When the extrusion protrusion 211 of the primary connecting rod 21 is inserted into the secondary connecting rod 22, the air originally retained in the secondary connecting rod 22 will be pushed towards the port by the extrusion protrusion 211. At this time, the vent 221 can discharge the compressed air generated by the extrusion in time, avoiding the obstruction of the insertion action of the extrusion protrusion 211 due to air resistance, and ensuring smooth assembly of the primary connecting rod 21 and the secondary connecting rod 22. At the same time, during the mold operation, the vent 221 can also balance the air pressure inside the secondary connecting rod 22 and the outside, preventing the internal air pressure fluctuation caused by temperature changes from affecting the fitting accuracy between components, and ensuring the smooth movement of the transmission connection assembly 2.

[0025] like Figures 1-3As shown, a support sleeve assembly 1 is sleeved on the outer wall of the compaction pin 3 and the transmission connection assembly 2 to achieve stable support for the compaction pin 3 and the transmission connection assembly 2, and to prevent the compaction pin 3 from bending or shaking when subjected to force due to its excessive length. The transmission connection assembly 2 drives the compaction pin 3 to move stably inside the support sleeve assembly 1, ensuring the accuracy of the compaction pin 3 during movement. The support sleeve assembly 1 includes a support sleeve A11 and a support sleeve B12 that are fitted onto the outer wall of the transmission connection assembly 2. The end face of the support sleeve B12 is welded with a pre-closed end cap 13, and the end face of the end cap 13 is provided with a retaining sleeve 14. The support sleeve assembly 1 is divided into a split structure of support sleeve A11, support sleeve B12 and end cap 13. Compared with the traditional integrated support sleeve, it can significantly reduce the processing difficulty of long-size support sleeves, not only reducing processing time and cost, but also improving the processing accuracy of individual support sleeves. The end cap 13 is fixed to the end face of the support sleeve B12 by welding, which can form an axial seal for the transmission components inside the support sleeve B12 to prevent foreign objects from entering, and at the same time provide a stable installation reference for the retaining sleeve 14. The retaining sleeve 14 can further form radial support for the through-through compaction pin 3. Together with the support of the support sleeve A11 and support sleeve B12 for the transmission connection assembly 2, a "multi-point support" structure is formed to prevent the compaction pin 3 from bending or shaking due to excessive length.

[0026] like Figure 2 As shown, the compaction pin 3 penetrates the end cap 13 and the retaining sleeve 14, and is smoothly fitted to the inner walls of the end cap 13 and the retaining sleeve 14. The smooth fit between the compaction pin 3 and the inner walls of the end cap 13 and the retaining sleeve 14 can reduce the frictional resistance of the compaction pin 3 during movement, reduce component wear, and extend the service life of the compaction pin 3. On the other hand, the extremely small gap of the smooth fit can limit the radial displacement of the compaction pin 3, ensuring that the compaction pin 3 always moves along the preset axis, further improving its movement accuracy and avoiding deviations in the forming dimensions of the workpiece due to radial sway. A protrusion is provided at the connection between the end cap 13 and the port of the support sleeve B12, and the outer wall of the protrusion is tightly fitted to the inner wall of the port of the support sleeve B12. The protrusion can realize the "positioning assembly" of the end cap 13 and the support sleeve B12. During assembly, the protrusion is first inserted into the inner wall of the port of the support sleeve B12, which can quickly calibrate the coaxiality of the end cap 13 and the support sleeve B12, ensuring the accurate installation position of the end cap 13. At the same time, the tight fit between the outer wall of the protrusion and the inner wall of the port of the support sleeve B12 can enhance the sealing of the connection between the two, preventing foreign objects such as dust and coolant in the mold working environment from entering the interior of the support sleeve through the gap between the end cap and the support sleeve, avoiding foreign objects causing the transmission components to jam or wear, and ensuring the cleanliness and stability of the internal structure of the support sleeve assembly 1.

[0027] In use, the limiting end 31 of the compaction pin 3 is inserted into the secondary connecting rod 22, so that the compaction pin 3 passes through the secondary connecting rod 22. Then, the extrusion protrusion 211 of the primary connecting rod 21 is inserted into the secondary connecting rod 22 until the extrusion protrusion 211 abuts against the limiting end 31. At this time, the retaining edge 222 of the secondary connecting rod 22 is engaged in the retaining groove 212 of the extrusion protrusion 211, thus completing the connection between the transmission connection assembly 2 and the compaction pin 3. Next, the spliced ​​support sleeve A11 and support sleeve B12 are fitted onto the transmission connection assembly 2. Then, the end cap 13 is fitted onto the port of the support sleeve B12, so that the compaction pin 3 passes through the end cap 13. The end cap 13 and the support sleeve B12 are welded and fixed using electric welding. Finally, the retaining sleeve 14 is installed on the end cap 13 and fitted onto the compaction pin 3, thus achieving stable fixation of the compaction pin 3 during operation.

[0028] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A split-type mold compaction pin support sleeve for preventing detachment, comprising a compaction pin (3), characterized in that: One end of the compaction pin (3) is detachably connected to a transmission connection assembly (2) so as to drive the compaction pin (3) to move inside the mold using the transmission connection assembly (2); A support sleeve assembly (1) is fitted onto the outer wall of the compaction pin (3) and the transmission connection assembly (2) to provide stable support for the compaction pin (3) and the transmission connection assembly (2) and to prevent the compaction pin (3) from bending or shaking under force due to its excessive length. The compaction pin (3) is driven to move stably inside the support sleeve assembly (1) by the transmission connection assembly (2), ensuring the accuracy of the compaction pin (3) during movement.

2. The anti-detachment split mold compaction pin support sleeve according to claim 1, characterized in that: The transmission connection assembly (2) includes a primary connecting rod (21) and a secondary connecting rod (22). The connection end of the compacting pin (3) and the transmission connection assembly (2) is provided with a limiting end (31), and the limiting end (31) is located inside the secondary connecting rod (22). At the same time, the compacting pin (3) passes through the secondary connecting rod (22). The end face of the primary connecting rod (21) is inserted into the interior of the secondary connecting rod (22) through its extrusion protrusion (211) and abuts against the limiting end (31).

3. The anti-detachment split mold compaction pin support sleeve according to claim 2, characterized in that: The inner wall of the connection port of the secondary connecting rod (22) and the primary connecting rod (21) is provided with a retaining edge (222), and the retaining edge (222) is engaged with the slot (212) opened at the corresponding position of the extrusion protrusion (211).

4. The anti-detachment split mold compaction pin support sleeve according to claim 3, characterized in that: The outer wall of the secondary connecting rod (22) is provided with an exhaust hole (221) near the middle of the extrusion protrusion (211).

5. The anti-detachment split mold compaction pin support sleeve according to claim 2, characterized in that: The support sleeve assembly (1) includes a support sleeve A (11) and a support sleeve B (12) sleeved on the outer wall of the transmission connection assembly (2). The end face of the support sleeve B (12) is welded with a pre-closed end cap (13), and the end face of the end cap (13) is provided with a retaining sleeve (14).

6. The anti-detachment split mold compaction pin support sleeve according to claim 5, characterized in that: The compaction pin (3) passes through the end cap (13) and the retaining sleeve (14) and is smoothly fitted to the inner wall of the end cap (13) and the retaining sleeve (14).

7. A split-type mold compaction pin support sleeve for preventing detachment according to claim 6, characterized in that: The end cap (13) is provided with a protrusion at the connection between the end cap (13) and the port of the support sleeve B (12), and the outer wall of the protrusion is tightly fitted to the inner wall of the port of the support sleeve B (12).

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