Quick-release compact side pin

Abstract

The utility model discloses a quick-release compact side pin which comprises a pin cylinder, a movable rod is inserted into the pin cylinder, a conical end is integrally formed at one end of the movable rod, a guide hole is formed in the pin cylinder, a movable column is movably inserted into the guide hole, and a stop lever is integrally formed at one end of the movable column. A side hole communicated with the guide hole is formed in the outer wall of one side of the pin cylinder, the stop lever is inserted into the side hole, the stop lever is sleeved with a first spring located in the guide hole, an annular groove is formed in the outer wall of the movable rod, and the end of the movable column is matched with the annular groove. The movable rod in the pin barrel extrudes the movable column, so that the stop rod can extend out of the pin barrel, and the movable column can be kept matched with the annular groove in the movable rod through the elastic force of the first spring, so that the stop rod can be kept in a stable state when extending out; and therefore, the side pin between the upper die and the pressing die core can be mounted and dismounted by hands, and the stop lever is more convenient to mount and dismount.

Description

Technical Field

[0001] This utility model relates to the field of mold side pin technology, specifically to a quick-release compact side pin. Background Technology

[0002] During the debugging and maintenance of stamping dies, there are many ways to disassemble the blank holder core, commonly using side pins and limiting bolts. In the die structure, side pins primarily serve to fix the upper die and blank holder core together. A set of dies typically has at least 6 side pins, and sometimes as many as 10. Currently, installing and disassembling the side pins between the upper die and blank holder core usually requires tools, and the disassembly process is cumbersome, making side pin removal inconvenient. Therefore, there is an urgent need to design quick-release, compact side pins to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a quick-release compact side pin to address the aforementioned shortcomings in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A quick-release compact side pin includes a pin cylinder, a movable rod inserted inside the pin cylinder, one end of the movable rod being integrally formed with a tapered end, a guide hole inside the pin cylinder, a movable pin movably inserted inside the guide hole, a stop rod integrally formed at one end of the movable pin, a side hole communicating with the guide hole on one side outer wall of the pin cylinder, the stop rod being inserted into the side hole, a spring located inside the guide hole being sleeved on the outside of the stop rod, an annular groove on the outer wall of the movable rod, and the end of the movable pin being adapted to the annular groove.

[0006] Furthermore, the end of the movable rod is integrally formed with a limit post, and the side wall of the pin cylinder is provided with a flat surface.

[0007] Furthermore, one end of the pin cylinder is fixed with an end cap, and the end of the movable column away from the stop bar is integrally formed with a rotating end through the end cap.

[0008] Furthermore, a mating groove is provided on one side of the outer wall of the end cap, and a baffle that matches the mating groove is fixed on the outer wall of the movable rod.

[0009] Furthermore, the pin cylinder has a clearance hole inside, and the baffle is located inside the clearance hole.

[0010] Furthermore, a stepped post is provided in the middle of the movable rod, a stepped hole is provided inside the pin cylinder, a second spring is provided inside the stepped hole, the second spring is sleeved on the outside of the movable rod, and the stepped post is inserted into the inside of the stepped hole.

[0011] In the above technical solution, the quick-release compact side pin provided by this utility model has the following advantages: the movable rod inside the pin cylinder squeezes the movable column, allowing the stop rod to extend out of the pin cylinder. The movable column can maintain a stable engagement with the annular groove on the movable rod through the elastic force of spring one, thus ensuring that the extended stop rod remains in a stable state. This allows the side pin between the upper mold and the pressure die core to be installed and disassembled by hand, making the installation and disassembly of the stop rod more convenient. Furthermore, the extension of the stop rod effectively prevents the pin cylinder from detaching, making the use of the side pin more reliable. By opening a mating groove on the end cap and fixing a baffle on the movable rod, the baffle can be misaligned with the mating groove when the movable rod is rotated. This allows the side wall of the end cap to block the baffle, preventing the movable rod from moving axially and further improving the anti-detachment effect of the side pin. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the quick-release compact side pin of this utility model.

[0014] Figure 2 This is a cross-sectional structural diagram of an embodiment of the quick-release compact side pin of this utility model.

[0015] Figure 3 A schematic diagram of the mating groove structure provided for an embodiment of the quick-release compact side pin of this utility model.

[0016] Figure 4 A schematic diagram of the end cap structure provided for an embodiment of the quick-release compact side pin of this utility model.

[0017] Figure 5 A schematic diagram of the side pin and upper mold installation structure provided for an embodiment of the quick-release compact side pin of this utility model.

[0018] Figure 6 An enlarged structural schematic diagram of point A provided for an embodiment of the quick-release compact side pin of this utility model.

[0019] Figure 7 This is a schematic diagram of section B of the quick-release compact side pin embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Pin cylinder, 2. End cap, 3. Side hole, 4. Plane, 5. Movable rod, 6. Annular groove, 7. Conical end, 8. Limiting post, 9. Movable post, 10. Stop rod, 11. Guide hole, 12. Spring 1, 13. Step hole, 14. Step post, 15. Spring 2, 16. Clearance hole, 17. Baffle, 18. Rotating end, 19. Mating groove, 20. Upper mold, 21. Pressing die core, 22. Pin hole, 23. Insertion hole. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-7 As shown, the quick-release compact side pin provided in this embodiment of the utility model includes a pin cylinder 1, a movable rod 5 inserted inside the pin cylinder 1, a tapered end 7 integrally formed at one end of the movable rod 5, a guide hole 11 inside the pin cylinder 1, a movable column 9 movably inserted inside the guide hole 11, a stop rod 10 integrally formed at one end of the movable column 9, a side hole 3 communicating with the guide hole 11 on one side outer wall of the pin cylinder 1, the stop rod 10 inserted inside the side hole 3, a spring 12 located inside the guide hole 11 sleeved on the outside of the stop rod 10, an annular groove 6 on the outer wall of the movable rod 5, and the end of the movable column 9 being adapted to the annular groove 6.

[0024] Specifically, in this embodiment, a pin cylinder 1 is included, and the pin cylinder 1 is hollow inside, such as... Figure 5 As shown, during use, the pin cylinder 1 is inserted into the insertion hole 23 of the upper mold 20 and extends into the pin hole 22 of the pressure die core. A movable rod 5 is inserted inside the pin cylinder 1, and one end of the movable rod 5 is integrally formed with a tapered end 7. A guide hole 11 is opened inside the pin cylinder 1. The axis of the guide hole 11 is perpendicular to and intersects the axis of the pin cylinder 1. A movable column 9 is movably inserted inside the guide hole 11. One end of the movable column 9 is integrally formed with a stop rod 10. A side hole 3 is opened on one side of the outer wall of the pin cylinder 1, which communicates with the guide hole 11. The diameter of the side hole 3 is smaller than that of the guide hole 11. The diameter of the guide hole 11 is such that the axis of the guide hole 11 and the axis of the side hole 3 coincide. The stop rod 10 is inserted into the side hole 3. A spring 12 located inside the guide hole 11 is sleeved on the outside of the stop rod 10. The spring 12 applies elastic force to the movable column 9, so that the stop rod 10 tends to retract into the side hole 3. The outer wall of the movable rod 5 has an annular groove 6. The end of the movable column 9 is adapted to the annular groove 6. The end of the movable column 9 is hemispherical, so that when the end of the movable column 9 is engaged with the annular groove 6, the movable column 9 can remain fixed in its natural state.

[0025] The quick-release compact side pin provided by this utility model uses the movable rod 5 inside the pin cylinder 1 to press the movable column 9, allowing the stop rod 10 to extend out of the pin cylinder 1. The movable column 9 can be maintained in cooperation with the annular groove 6 on the movable rod 5 by the elastic force of the spring, so that the extension of the stop rod 10 can maintain a stable state. As a result, the side pin between the upper mold 20 and the pressure die core 21 can be installed and removed by hand, making the installation and removal of the stop rod 10 more convenient. Furthermore, the extension of the stop rod 10 can effectively prevent the pin cylinder 1 from detaching, making the use of the side pin more reliable.

[0026] In another embodiment of this utility model, the end of the movable rod 5 is integrally formed with a limiting post 8, which blocks the movable rod 9, thus limiting the range of motion of the movable rod 9. The side wall of the pin cylinder 1 is provided with a plane 4. When in use, the plane 4 of the pin cylinder 1 is in contact with the upper surface of the protrusion on the side wall of the upper mold 20, so that the movable rod 9 cannot rotate. One end of the pin cylinder 1 is fixed with an end cap 2. The end of the movable rod 9 away from the stop rod 10 is integrally formed with a rotating end 18 through the end cap 2. The rotating end 18 facilitates the rotation and pressing of the movable rod 9, and a knob can be installed on the rotating end 18 to make the operation of the rotating end 18 more convenient. One side of the outer wall of the end cap 2 is provided with a mating groove 19. The outer wall of the movable rod 5 is fixed with a baffle 17 that matches the mating groove 19. When the baffle 17 and the mating groove 19 are aligned, the movable rod 5 has axial movement space. When the baffle 17 and the mating groove 19 are misaligned, the movable rod 5 does not have movement space in the direction of the rotating end 18.

[0027] In another embodiment of this utility model, the pin cylinder 1 is provided with a clearance hole 16 inside, and the baffle 17 is located inside the clearance hole 16. The clearance hole 16 allows the baffle 17 to have a movable space to translate along the axial direction of the movable rod 5, and a movable space to rotate around the axis of the movable rod 5.

[0028] In another embodiment of this utility model, a stepped post 14 is provided in the middle of the movable rod 5, a stepped hole 13 is provided inside the pin cylinder 1, a second spring 15 is provided inside the stepped hole 13, the second spring 15 is sleeved on the outside of the movable rod 5, the stepped post 14 is inserted into the inside of the stepped hole 13, the second spring 15 applies a spring force to the movable rod 5, so that the movable rod 5 will not rotate in its natural state, and at the same time, the maximum spring force applied by the second spring 15 to the movable rod 5 will not change the cooperation state between the annular groove 6 and the movable post 9.

[0029] Working principle: In use, firstly, insert the pin cylinder 1 into the insertion hole 23 of the upper mold 20, and insert the end of the pin cylinder 1 into the pin hole 22 of the pressure die core 21. Then, press the rotating end 18 of the movable rod 5 into the inside of the pin cylinder 1, so that the conical end 7 of the movable rod 5 presses against the movable column 9, thereby causing the stop rod 10 at one end of the movable column 9 to extend out of the side hole 3. When the annular groove 6 corresponds to the position of the movable column 9, the end of the movable column 9 cooperates with the annular groove 6 through the elastic force of the spring, so that the stop rod 10 is kept in the extended state, so that the stop rod 10 forms a block with the inner wall of the upper mold 20, thereby effectively preventing the pin cylinder 1 from separating from the pressure die core 21. At this time, the baffle 17 moves out from the mating groove 19 of the end cover 2. The movable rod 5 is rotated 90 degrees by the rotating end 18, causing the baffle 17 to be misaligned with the mating groove 19, thus creating a blocking effect between the baffle 17 and the end cover 2. This further prevents the movable rod 5 from moving axially. When the pin cylinder 1 needs to be pulled out, the movable rod 5 is first pulled outward by the rotating end 18 and kept rotating. When the baffle 17 and the mating groove 19 are aligned, the movable rod 5 will be pulled, causing the baffle 17 to enter the interior of the mating groove 19. At the same time, the end of the movable rod 5 will be misaligned with the movable column 9, causing the movable column 9 to contact the limiting column 8 through the elastic force of the spring 12. Meanwhile, the stop rod 10 retracts into the interior of the side hole 3, at which point the pin cylinder 1 can be pulled out from the interior of the insertion hole 23.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quick-release compact side pin, characterized in that, The device includes a pin cylinder (1), a movable rod (5) is inserted inside the pin cylinder (1), one end of the movable rod (5) is integrally formed with a tapered end (7), the pin cylinder (1) has a guide hole (11) inside, a movable column (9) is movably inserted inside the guide hole (11), one end of the movable column (9) is integrally formed with a stop rod (10), one side outer wall of the pin cylinder (1) has a side hole (3) communicating with the guide hole (11), the stop rod (10) is inserted into the side hole (3), the stop rod (10) is sleeved on the outside of the stop rod (10) and a spring (12) located inside the guide hole (11), the outer wall of the movable rod (5) has an annular groove (6), and the end of the movable column (9) is adapted to the annular groove (6).

2. The quick-release compact side pin according to claim 1, characterized in that, The end of the movable rod (5) is integrally formed with a limiting post (8), and the side wall of the pin cylinder (1) is provided with a plane (4).

3. The quick-release compact side pin according to claim 1, characterized in that, One end of the pin cylinder (1) is fixed with an end cap (2), and the end of the movable column (9) away from the stop bar (10) is integrally formed with a rotating end (18) through the end cap (2).

4. The quick-release compact side pin according to claim 3, characterized in that, The outer wall of one side of the end cap (2) is provided with a mating groove (19), and the outer wall of the movable rod (5) is fixed with a baffle (17) that is compatible with the mating groove (19).

5. The quick-release compact side pin according to claim 4, characterized in that, The pin cylinder (1) has a clearance hole (16) inside, and the baffle (17) is located inside the clearance hole (16).

6. The quick-release compact side pin according to claim 1, characterized in that, The movable rod (5) has a stepped column (14) in the middle, the pin cylinder (1) has a stepped hole (13) inside, the stepped hole (13) has a spring (15) inside, the spring (15) is sleeved on the outside of the movable rod (5), and the stepped column (14) is inserted into the inside of the stepped hole (13).

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