Following type rod beating reset mechanism

Abstract

The utility model relates to a following type beating rod resetting mechanism which comprises a beating rod for pushing a mold ejector rod, a shaft shoulder is arranged on the beating rod, a first hook is arranged on the shaft shoulder, one end of a resetting spring is hung on the first hook, the other end of the resetting spring is hung on a second hook of a mold body, and the other end of the resetting spring is connected with the mold ejector rod. And a stop screw rod for limiting the return position of the beating rod is arranged on the mold body. Due to the fact that the reset spring is arranged on the beating rod, the beating rod can return in a following mode under the action of the reset spring after pushing a product, and when the product to be machined is pushed into the mold, the beating rod does not need to be pushed, especially a slender product to be machined, the risk of deformation does not exist.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology of stamping dies, and in particular to a follow-type striker reset mechanism. Background Technology

[0002] In the existing technology, when processing bolts, the striking bar has the function of bearing impact and pushing the bolt out of the mold cavity. However, the striking bar and the striking bar sleeve are ordinary shaft hole fits. When producing short bolts, production can proceed normally. However, when processing small-sized extended bolts, the length of the striking bar also needs to be increased. Therefore, the striking bar often breaks, causing damage to the machine, damaging the mold, affecting production efficiency, and reducing mold life.

[0003] For example, Chinese Patent Publication (Announcement) No.: CN217617248U, patent title: A Combination Mold for Striking Rods, which discloses "

[0005] In order to achieve the above-mentioned objective, this application proposes a combination mold for striking rods, which includes a mold core, a striking rod and a striking rod sleeve, wherein the mold core has a forming end and a discharge end at both axial ends, the mold core has a mold cavity that passes through the forming end and the discharge end, the forming end is used for bolt forming; the striking rod is inserted into the mold cavity from the discharge end, the striking rod moves toward the forming end, pushing the bolt away from the mold cavity, and the striking rod is provided with a guide key extending in the axial direction; The striking rod sleeve is fitted on the outside of the striking rod, and the inner wall of the striking rod sleeve has a guide keyway. The guide keyway and the guide key cooperate to allow the striking rod to move within the striking rod sleeve. The technical solution has achieved the following effect: "

[0016] 1. The striking rod and the striking rod sleeve are respectively provided with mutually cooperating guide keys and guide keyways. When the striking rod moves within the striking rod sleeve, the guide key slides in the guide keyway, which guides and limits the movement of the striking rod, increases the contact area between the striking rod and the striking rod sleeve, improves the stability of the striking rod movement, improves the impact strength that the striking rod can withstand, and thus improves the mold life..."

[0004] In practical applications, when the product to be processed is pushed into the mold, it pushes the ejector pin, which in turn pushes the striking rod back. Since the striking rod and its sleeve have a shaft-hole fit, there is a certain amount of friction. If the product to be processed is relatively short and thick, it will not deform when pushing the striking rod. However, if the product is long and slender, it will be subject to friction, and such a long and slender product may deform. Although the prior art (patent publication number: CN217617248U) improves the stability of the striking rod's movement by machining keys and keyways on both the striking rod and its sleeve, this requires machining keys and keyways on both sides, which is labor-intensive and time-consuming. Therefore, structural improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to provide a follow-up striking rod reset mechanism to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical measures: a follow-type striking bar reset mechanism, characterized in that: it includes a striking bar that pushes the mold ejector rod, the striking bar is provided with a shoulder, the shoulder is provided with a first hook, one end of a reset spring is hung on the first hook, the other end of the reset spring is hung on a second hook of the mold body, and the mold body is provided with a stop screw that limits the retraction position of the striking bar.

[0007] Compared with the prior art, the advantages of this utility model are: by setting a return spring on the striking bar, the striking bar can return to its original position under the action of the return spring after pushing the product. When the product to be processed is pushed into the mold, it does not need to push the striking bar. Especially for slender products to be processed, there is no risk of deformation.

[0008] As an improvement of this utility model, the stop screw is fixed by a stop nut. The purpose of this design is to limit the terminal position of the striking rod when it returns to its original position.

[0009] As an improvement to this utility model, the stop screw is a hydraulic damper. The purpose of this design is to reduce vibration and noise by adding a return spring to speed up the return speed of the striking rod.

[0010] As an improvement of this utility model, the head of the stop screw is provided with a buffer rubber pad. The purpose of this design is to reduce vibration and noise. Attached Figure Description

[0011] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0012] In the attached diagram:

[0013] Figure 1 This is a front view of the follow-up striking rod reset mechanism described in this utility model.

[0014] Figure 2 This is a side view of the follow-type striking rod reset mechanism described in this utility model.

[0015] Figure 3 This is a schematic diagram of the battering drive in the prior art described in this utility model.

[0016] Figure 4 This is a schematic diagram of the stop screw described in this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Mold ejector pin; 2. Blower; 3. Shoulder; 4. First hook; 5. Return spring; 6. Second hook; 7. Stop screw; 8. Buffer rubber pad; 9. Mold body; 10. Stop nut; 11. Product; 12. Blower sleeve; 13. Die body. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example 1

[0020] Please refer to Figure 1 -4.

[0021] This embodiment provides a follow-type strike bar reset mechanism, including a strike bar 2 that pushes the mold ejector rod 1. The strike bar 2 is provided with a shoulder 3, and a first hook 4 is provided on the shoulder 3. One end of a reset spring 5 is hung on the first hook 4, and the other end of the reset spring 5 is hung on a second hook 6 of the mold body 9. A stop screw 7 is provided on the mold body 9 to limit the retraction position of the strike bar 2.

[0022] Furthermore, the stop screw 7 is fixed by the stop nut 10. The stop screw 7 serves to limit the terminal position of the striking rod 2 when it returns to its original position.

[0023] Further, please refer to Figure 4 The stop screw 7 is a hydraulic damper. Because the addition of the return spring 5 speeds up the return speed of the striking rod 2, a hydraulic damper is installed to reduce vibration and noise. It should be noted that the stop screw 7 can also be a pneumatic (or damped) damper.

[0024] Further, please refer to Figure 4 The head of the stop screw 7 is provided with a buffer rubber pad 8, which is used to reduce vibration and noise.

[0025] This embodiment provides a follow-up strike-and-reset mechanism; please refer to [reference needed]. Figure 2 This is a side view of the follow-type striker reset mechanism applied to a four-station cold heading machine.

[0026] In the existing technology, please refer to Figure 3When the product to be processed 11 (such as a long and slender product) is pushed into the die body 13 (also called the female die), the product to be processed 11 pushes the die ejector 1 (the die ejector 1 has very little friction and can be ignored). The die ejector 1 then pushes the striker 2, allowing the striker 2 to return to the initial point (stroke start point). Since the striker 2 and the striker sleeve 12 are fitted with a shaft hole, there is a large frictional resistance between them. If the product to be processed is relatively short and thick, it will not deform when it indirectly pushes the striker 2 (by directly pressing the die ejector 1, allowing the die ejector 1 to push the striker 2, hence the term indirect pushing). However, if the product to be processed is long and slender, it will be subject to friction when it indirectly pushes the striker 2, and such a long and slender product may be at risk of deformation.

[0027] This embodiment provides a follow-type strike bar reset mechanism. By setting a reset spring 5 on the strike bar 2, the strike bar 2 can automatically return after ejecting the product (i.e., return to its original position under the action of the reset spring 5). When the next product to be processed is pushed into the mold, it does not need to push the strike bar 2, but only needs to push the mold ejector rod 1 (frictional resistance is negligible). Therefore, for slender products to be processed, there is no risk of deformation.

[0028] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A follow-type striker reset mechanism, characterized in that: The device includes a push rod (2) that pushes the mold ejector rod (1), the push rod (2) having a shoulder (3) and a first hook (4) on the shoulder (3), one end of a return spring (5) being hung on the first hook (4), the other end of the return spring (5) being hung on a second hook (6) on the mold body (9), and a stop screw (7) on the mold body (9) that restricts the return position of the push rod (2).

2. The follow-type striker reset mechanism according to claim 1, characterized in that: The stop screw (7) is fixed by the stop nut (10).

3. The follow-type striker reset mechanism according to claim 1, characterized in that: The stop screw (7) is a hydraulic damper.

4. The follow-type striker reset mechanism according to claim 1, characterized in that: The head of the stop screw (7) is provided with a buffer rubber pad (8).

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