A kind of unloading device for gasket production equipment

By combining a double eccentric rapping mechanism and a return spring, the problem of mold jamming caused by electrostatic adsorption and oil film tension during the unloading process of the gaskets is solved, realizing efficient and non-destructive separation and transfer of the gaskets, and ensuring the continuity and stability of the production line.

CN224298262UActive Publication Date: 2026-05-29HANDAN YONGTE FASTENER MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANDAN YONGTE FASTENER MFG CO LTD
Filing Date
2025-08-11
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing unloading devices are prone to electrostatic adsorption, oil film tension, or vacuum effect when handling gaskets with highly smooth, thin surfaces or with a slight oil film. This can cause the gaskets to fail to completely detach from the mold cavity, resulting in mold jamming or requiring manual intervention, which affects production stability.

Method used

The double eccentric rapping mechanism uses symmetrically distributed dual-point high-frequency impacts to precisely cover the stress concentration area at the connection between the gasket and the excess material. Combined with the instantaneous rebound of the return spring, it achieves rapid cyclic action, ensuring the reliability and accuracy of separation.

Benefits of technology

It effectively overcomes the problems of local deformation and jamming caused by single-point force application, realizes efficient and non-destructive gasket separation, adapts to high-speed continuous stamping production, reduces manual intervention, and improves the continuity and stability of the production line.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of unloading device for gasket production equipment, including first push mechanism, second push mechanism, push mechanism, support plate, two eccentric vibration mechanisms and two drive mechanisms;The output end of first push mechanism is detachably connected with the rear side end surface of support plate;Second push mechanism is set on support plate, and the output end of second push mechanism is connected with push mechanism.The unloading device for gasket production equipment of the utility model solves the problem that the unloading device in the related art causes mold jamming or requires manual intervention for removal, which seriously affects the stability of continuous production.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and in particular relates to a material unloading device for gasket production equipment. Background Technology

[0002] In modern gasket production processes, the unloading device, as a key downstream component of stamping, blanking, or forming stations, has the core function of efficiently, accurately, and without damage stripping the finished gaskets (or scrap / waste) after the stamping or forming process from the mold cavity or working area and transferring them to a designated collection point (such as a material bin, conveyor belt, or the entrance to the next process), thereby ensuring the continuous, automated, and efficient operation of the production line.

[0003] For gaskets with highly smooth, thin surfaces or slight oil film, especially metal or composite materials, electrostatic adsorption, oil film tension, or vacuum effects may occur during gasket processing, causing the gasket to fail to completely detach from the mold cavity. Due to the unloading devices in related technologies, mold jamming or manual intervention may be required, which seriously affects the stability of continuous production. Summary of the Invention

[0004] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A material unloading device for a gasket production equipment includes a first pushing mechanism, a second pushing mechanism, a material pushing mechanism, a support plate, two eccentric vibrating mechanisms, and two driving mechanisms.

[0007] The output end of the first pushing mechanism is detachably connected to the rear end face of the support plate;

[0008] The second pushing mechanism is mounted on the support plate, and the output end of the second pushing mechanism is connected to the pushing mechanism;

[0009] The two drive mechanisms are symmetrically arranged at the left and right ends of the support plate, and the output end of each drive mechanism is connected to one of the eccentric vibration mechanisms.

[0010] The pushing mechanism and the two eccentric vibrating mechanisms are both located on the front end face of the support plate, and the pushing mechanism is located between the two eccentric vibrating mechanisms;

[0011] The eccentric rapping mechanism has its rapping end corresponding to the residual material connection part, which is used to separate the finished gasket from the residual material; the pushing mechanism has its pushing trajectory end extending to the collection station, which is used to transfer the separated finished gasket.

[0012] Furthermore, the first pushing mechanism includes a movable cylinder and a first fixed sleeve, and the output end of the movable cylinder is connected to the middle of the support plate through the first fixed sleeve.

[0013] Furthermore, the second pushing mechanism includes two electric push rods and two fixed brackets. The two electric push rods are symmetrically arranged on the support plate, and each electric push rod is connected to the support plate through a fixed bracket. The output end of the electric push rod is connected to the pushing mechanism.

[0014] Furthermore, the pushing mechanism includes a material pushing plate and two gasket rods. The two gasket rods are symmetrically arranged on the front end face of the material pushing plate, and the output end of the electric push rod is connected to the rear end face of the material pushing plate.

[0015] Furthermore, the eccentric vibration mechanism includes a slide fixing structure, an eccentric wheel, a rotating base, a hammer rod, and a return spring. The eccentric wheel is connected to the output end of the drive mechanism, and the bottom of the eccentric wheel is connected to the rotating base via a slide rod. The rotating base is located at the bottom of the hammer rod, and the upper part of the hammer rod is slidably engaged with the slide fixing structure. The return spring is located on the hammer rod and is situated between the rotating base and the sliding part of the slide fixing structure.

[0016] Furthermore, the carriage fixing structure includes a fixing rod, a fixing base, and a sliding base. The fixing base is rotatably engaged with the output end of the drive mechanism. The sliding base is disposed on the upper end surface of the fixing base and is slidably engaged with the hammer rod. One end of the fixing rod is connected to the support plate, and the other end of the fixing rod is connected to the fixing base.

[0017] Furthermore, the drive mechanism includes a servo motor, a second fixed sleeve, and a rotating rod. The output end of the servo motor is connected to the eccentric wheel through the rotating rod. The second fixed sleeve is disposed on the support plate, and the inner side of the second fixed sleeve is connected to the rotating rod through a bearing.

[0018] Compared with the prior art, the unloading device for gasket production equipment described in this utility model has the following advantages:

[0019] 1. The core advantage of setting up two eccentric rapping mechanisms lies in the synergistic effect of symmetrically distributed dual-point high-frequency impacts, which can precisely cover the stress concentration area at the connection between the gasket and the excess material. Especially for large-sized or irregularly shaped gaskets, it can effectively overcome the problems of local deformation, incomplete separation, or jamming caused by uneven force application that may occur when applying force at a single point. The symmetrical layout of the dual eccentric rapping mechanisms can flexibly adapt to the excess material distribution characteristics of molds of different sizes. By adjusting the distance between the two mechanisms or independently controlling the impact sequence, it can specifically handle the connection structure of centrally symmetrical, ring array, or irregular arrangement. Especially for precision gaskets with multiple holes, dual-point rapping can simultaneously cut off multiple micro-connection points, eliminating the cumulative positioning error caused by step-by-step operation.

[0020] 2. The mechanical impact, which is forcibly constrained by the eccentric wheel profile, not only has extremely high energy transfer efficiency, but also achieves rapid cyclic action through the instantaneous rebound of the return spring. Compared with traditional pneumatic or hydraulic drive methods, its action response is faster, the impact force is more concentrated, and it is not affected by the pressure fluctuation of the fluid medium. It is especially suitable for the production cycle of high-speed continuous stamping. At the same time, the compact carriage guide structure ensures that the hammer trajectory is strictly perpendicular to the separation interface, which avoids the displacement of the pad or surface damage caused by oblique impact, and can achieve the maximum shear stress release with the minimum working stroke. Ultimately, it maintains the reliability and repeatability of the separation action even under complex working conditions. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0022] Figure 1 This is a schematic diagram of a unloading device for a gasket production equipment according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the drive mechanism structure described in an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the eccentric vibrating mechanism structure described in an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the pusher structure described in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Moving cylinder; 110. First fixed sleeve; 200. Support plate; 300. Drive mechanism; 310. Servo motor; 320. Second fixed sleeve; 400. Eccentric vibration mechanism; 410. Fixed base; 420. Fixed rod; 430. Sliding base; 500. Eccentric vibration mechanism; 510. Eccentric wheel; 520. Rotating base; 530. Hammer rod; 540. Return spring; 600. Electric push rod; 610. Gasket insertion rod; 620. Fixed bracket; 630. Material push plate. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] A discharge device for gasket production equipment, such as Figure 1As shown, it includes a first pushing mechanism, a second pushing mechanism, a pushing mechanism, a support plate 200, two eccentric vibrating mechanisms 400, and two driving mechanisms 300; the output end of the first pushing mechanism is detachably connected to the rear end face of the support plate 200; the second pushing mechanism is mounted on the support plate 200, and the output end of the second pushing mechanism is connected to the pushing mechanism.

[0033] Two drive mechanisms 300 are symmetrically arranged at the left and right ends of the support plate 200, and the output end of each drive mechanism 300 corresponds to an eccentric rapping mechanism 400. The pushing mechanism and the two eccentric rapping mechanisms 400 are located on the front end face of the support plate 200, with the pushing mechanism positioned between the two eccentric rapping mechanisms 400. The core advantage of setting up two eccentric rapping mechanisms 400 is that through the synergistic effect of symmetrically distributed dual-point high-frequency impact, the stress concentration area at the connection between the gasket and the residual material can be accurately covered. Especially for large-sized or irregularly shaped gaskets, it can effectively overcome the problems of local deformation, incomplete separation, or jamming caused by uneven force application that may occur when applying force at a single point. The symmetrical layout of the dual eccentric rapping mechanisms 400 can flexibly adapt to the residual material distribution characteristics of molds of different sizes. By adjusting the distance between the two mechanisms or independently controlling the impact sequence, it can specifically handle the connection structure of centrally symmetrical, ring array, or irregular arrangement. Especially for precision gaskets with multiple holes, dual-point rapping can simultaneously cut off multiple micro-connection points, eliminating the cumulative positioning error caused by step-by-step operation.

[0034] An eccentric rapping mechanism 400 has its rapping end corresponding to the waste material connection part, used to separate the finished gasket from the waste material; the eccentric rapping mechanism 400 includes a slide fixing structure, an eccentric wheel 510, a rotating base 520, a hammer rod 530, and a return spring 540. The eccentric wheel 510 is connected to the output end of the drive mechanism 300. The bottom of the eccentric wheel 510 is connected to the rotating base 520 through a slide rod. The rotating base 520 is located at the bottom of the hammer rod 530. The upper part of the hammer rod 530 is slidably engaged with the slide fixing structure. The return spring 540 is located on the hammer rod 530 and is located between the rotating base 520 and the sliding part of the slide fixing structure. The mechanical impact, constrained by the contour of the eccentric wheel 510, not only has extremely high energy transfer efficiency, but also achieves rapid cyclic action through the instantaneous rebound of the return spring 540. Compared with traditional pneumatic or hydraulic drive methods, its action response is faster, the impact force is more concentrated, and it is not affected by the pressure fluctuation of the fluid medium. It is especially suitable for the production cycle of high-speed continuous stamping. At the same time, the compact carriage guide structure ensures that the hammer trajectory is strictly perpendicular to the separation interface, which avoids the displacement of the pad or surface damage caused by oblique impact, and can achieve the maximum shear stress release with the minimum working stroke. Ultimately, it maintains the reliability and repeatability of the separation action even under complex working conditions.

[0035] The pushing mechanism extends its pushing trajectory to the collection station for transferring the separated finished gaskets. The pushing mechanism includes a material pushing plate 630 and two gasket insertion rods 610. The two gasket insertion rods 610 are symmetrically arranged on the front end face of the material pushing plate 630, and the output end of the electric push rod 600 is connected to the rear end face of the material pushing plate 630.

[0036] The first pushing mechanism includes a movable cylinder 100 and a first fixed sleeve 110. The output end of the movable cylinder 100 is connected to the middle of the support plate 200 through the first fixed sleeve 110. The second pushing mechanism includes two electric push rods 600 and two fixed brackets 620. The two electric push rods 600 are symmetrically arranged on the support plate 200. Each electric push rod 600 is connected to the support plate 200 through a fixed bracket 620. The output end of the electric push rod 600 is connected to the pushing mechanism.

[0037] The carriage fixing structure includes a fixing rod 420, a fixing base 410, and a sliding base 430. The fixing base 410 is rotatably engaged with the output end of the drive mechanism 300. The sliding base 430 is disposed on the upper end surface of the fixing base 410 and is slidably engaged with the hammer rod 530. One end of the fixing rod 420 is connected to the support plate 200, and the other end of the fixing rod 420 is connected to the fixing base 410.

[0038] The drive mechanism 300 includes a servo motor 310, a second fixed sleeve 320 and a rotating rod. The output end of the servo motor 310 is connected to the eccentric wheel 510 through the rotating rod. The second fixed sleeve 320 is mounted on the support plate 200, and the inner side of the second fixed sleeve 320 is connected to the rotating rod through a bearing.

[0039] How this example works

[0040] Step 1: The servo motor 310 in the drive mechanism 300 drives the rotating rod to rotate, causing the eccentric wheel 510 to be at the reference phase angle, so that the hammer rod 530 retracts to the highest position under the action of the return spring 540; at the same time, the moving cylinder 100 of the first push mechanism pushes the support plate 200 forward as a whole until the front end of the hammer rod 530 of the two eccentric vibration mechanisms 400 is vertically aligned with the mold residual material connection part, and the pad insertion rod 610 of the push mechanism maintains a gap of 1-2mm with the edge of the finished pad, thus completing the station calibration.

[0041] Step 2: The servo motor 310 starts, driving the eccentric wheels 510 on both sides to rotate synchronously via the rotating rod. The raised contour of the eccentric wheel 510 pushes the rotating base 520 downward, forcing the hammer rod 530 to impact vertically downward at high speed along the guide groove of the sliding base 430. The hammer rods 530 on both sides alternately hammer the residual material connection part with a 180° phase difference, with a single stroke of 3-5mm and a frequency of 20-50Hz. Under the dense impact load, the micro connection point between the gasket and the residual material is precisely cut off. The return spring 540 rebounds the hammer rod 530 instantaneously after each hammering to prevent adhesion.

[0042] Step 3: After the vibration separation is completed, the electric push rod 600 of the second pushing mechanism is started, pushing the material push plate 630 forward in a direction parallel to the support plate 200; the symmetrically arranged gasket insertion rods 610 are inserted into the gaps on both sides of the separated finished gaskets, and push them horizontally to the top of the collection station at a constant speed, with the end trajectory of the push strictly aligned with the center line of the material trough.

[0043] Step 4: When the photoelectric sensor detects that the pad insertion rod 610 has reached the limit position of the collection station, the electric push rod 600 stops abruptly for 0.1 seconds and then quickly retracts. The pad falls accurately into the material trough due to gravity. At the same time, the moving cylinder 100 pulls the support plate 200 backward by 50mm, so that the hammer rod 530 and the pad insertion rod 610 completely exit the mold working area, waiting for the next production cycle.

[0044] Step 5: The PLC monitors the upper die opening signal of the stamping machine in real time. Within 10ms after the die opens, the vibration program is started and the vibration action lasts for 100-150ms. The pushing mechanism pre-accelerates 20ms before the vibration ends to achieve seamless connection between the separation action and the transfer action. After the reset signal of each mechanism is triggered, the system automatically verifies the position sensor data until all components return to their initial coordinates.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A discharge device for gasket production equipment, characterized in that: It includes a first pushing mechanism, a second pushing mechanism, a pushing mechanism, a support plate (200), two eccentric vibrating mechanisms (400) and two driving mechanisms (300); The output end of the first pushing mechanism is detachably connected to the rear end face of the support plate (200); The second pushing mechanism is disposed on the support plate (200), and the output end of the second pushing mechanism is connected to the pushing mechanism; Two drive mechanisms (300) are symmetrically arranged at the left and right ends of the support plate (200), and the output end of each drive mechanism (300) is connected to an eccentric vibrating mechanism (400). The pushing mechanism and the two eccentric vibrating mechanisms (400) are both located on the front end face of the support plate (200), and the pushing mechanism is located between the two eccentric vibrating mechanisms (400); The eccentric rapping mechanism (400) has its rapping end corresponding to the residual material connection part, and is used to separate the finished gasket from the residual material; the pushing mechanism has its pushing trajectory end extending to the collection station, and is used to transfer the separated finished gasket.

2. The unloading device for gasket production equipment according to claim 1, characterized in that: The first pushing mechanism includes a movable cylinder (100) and a first fixed sleeve (110), and the output end of the movable cylinder (100) is connected to the middle part of the support plate (200) through the first fixed sleeve (110).

3. The unloading device for gasket production equipment according to claim 1, characterized in that: The second pushing mechanism includes two electric push rods (600) and two fixed brackets (620). The two electric push rods (600) are symmetrically arranged on the support plate (200). Each electric push rod (600) is connected to the support plate (200) through a fixed bracket (620). The output end of the electric push rod (600) is connected to the pushing mechanism.

4. The unloading device for gasket production equipment according to claim 3, characterized in that: The material pushing mechanism includes a material pushing plate (630) and two gasket rods (610). The two gasket rods (610) are symmetrically arranged on the front end face of the material pushing plate (630). The output end of the electric push rod (600) is connected to the rear end face of the material pushing plate (630).

5. A discharge device for a gasket production equipment according to any one of claims 1-4, characterized in that: The eccentric vibration mechanism (400) includes a slide fixing structure, an eccentric wheel (510), a rotating base (520), a hammer rod (530), and a return spring (540). The eccentric wheel (510) is connected to the output end of the drive mechanism (300). The bottom of the eccentric wheel (510) is connected to the rotating base (520) through a slide rod. The rotating base (520) is located at the bottom of the hammer rod (530). The upper part of the hammer rod (530) is slidably engaged with the slide fixing structure. The return spring (540) is located on the hammer rod (530) and is situated between the rotating base (520) and the sliding part of the slide fixing structure.

6. The unloading device for a gasket production equipment according to claim 5, characterized in that: The carriage fixing structure includes a fixing rod (420), a fixing base (410), and a sliding base (430). The fixing base (410) is rotatably engaged with the output end of the drive mechanism (300). The sliding base (430) is disposed on the upper end surface of the fixing base (410) and is slidably engaged with the hammer rod (530). One end of the fixing rod (420) is connected to the support plate (200), and the other end of the fixing rod (420) is connected to the fixing base (410).

7. A discharge device for a gasket production equipment according to claim 6, characterized in that: The drive mechanism (300) includes a servo motor (310), a second fixed sleeve (320), and a rotating rod. The output end of the servo motor (310) is connected to the eccentric wheel (510) through the rotating rod. The second fixed sleeve (320) is disposed on the support plate (200), and the inner side of the second fixed sleeve (320) is connected to the rotating rod through a bearing.