Automobile sealing ring sheath repair mechanism
By combining a pneumatic buffer structure and a regulating valve with an MI heating element and an Omron temperature controller, the problem of reduced thickness or hardened texture caused by inaccurate pressure control during the sealing ring repair process was solved, thus improving the repair yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIERUI PRECISE SILICONE INJECTION MOLDING
- Filing Date
- 2025-04-29
- Publication Date
- 2026-06-19
AI Technical Summary
During the repair process of automotive seals, heating and extrusion can cause the silicone parts to become thinner or harder, affecting the repair yield.
It adopts a pneumatic buffer structure and a regulating valve. The diameter of the exhaust port of the pneumatic buffer structure is adjusted by rotating the regulating valve to control the pressure applied by the extrusion block. Part of the pressure is offset by the friction between the limiting protrusion and the inner wall of the air storage cylinder. Combined with the MI heating element and Omron temperature controller, the temperature is precisely controlled.
It achieves precise pressure control during the sealing ring repair process, avoiding the reduction of sealing ring thickness or hardening of texture, and significantly improving the yield rate after repair.
Smart Images
Figure CN224374946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive sealing ring processing technology, and in particular to an automotive sealing ring sleeve repair mechanism. Background Technology
[0002] Automotive seal rings are assembled from plastic and silicone parts using a robotic arm. Due to the significant assembly force (mechanical rigid assembly), the lower edge of the harder plastic part can easily scratch the lower end of the softer silicone part. The purpose of the automotive seal ring repair mechanism is to repair the scratched soft silicone part. Specifically, liquid silicone material from the same batch is evenly applied to the scratched area, and then heated, compressed, and subsequently cooled by the mechanism to complete the repair.
[0003] However, silicone softens when heated, which can reduce the thickness of the sealing ring during the heating and extrusion process. Furthermore, the combined effect of extrusion pressure and heating can cause the sealing ring to harden, thus affecting the yield rate of repaired products. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] To address the aforementioned problems, this utility model provides the following technical solution: A rework mechanism for automotive sealing ring sleeves includes a worktable, on which a positioning block for positioning the product and a pressing block slidably disposed via a drive assembly are provided. The pressing block cooperates with a heating module. The drive assembly / pressing block is provided with a pneumatic buffer structure, and a matching regulating valve is provided on the pneumatic buffer structure. By rotating the regulating valve, its through hole overlaps or staggers with the through hole of the matching valve to adjust the diameter of the exhaust port of the pneumatic buffer structure.
[0006] Preferably, the pneumatic drive assembly includes a cylinder, a shaft, a slide rod, and a slider, and a pneumatic buffer structure is provided between the cylinder shaft and the extrusion block.
[0007] Preferably, the cylinder is mounted on the worktable, the extrusion block is provided with a slider, one end of the slide rod is mounted on the worktable, the other end is mounted on the positioning block, and the slider is slidably mounted on the slide rod.
[0008] Preferably, the heating module includes a heating unit and a temperature control unit. The heating unit is disposed on the extrusion block, and the temperature control unit is disposed on the worktable. The temperature control unit is electrically connected to the heating unit.
[0009] Preferably, the pneumatic buffer structure includes an air storage cylinder, a spring, a piston, an extension block, a limiting protrusion, an adjusting valve, and supporting components.
[0010] Preferably, one end of the gas storage cylinder is connected to the extrusion block, a spring is provided in the cavity of the gas storage cylinder, a piston is provided in the cavity in cooperation with the spring, and an extension block is provided on the piston and connected to the shaft.
[0011] Preferably, the extension block is provided with a limiting protrusion, and the outer surface of the limiting protrusion is in contact with the inner wall of the air storage cylinder.
[0012] Preferably, the gas storage cylinder is provided with a pressure relief hole, and a matching device is provided inside the pressure relief hole, and a regulating valve is provided on the matching device.
[0013] Preferably, the pressure relief hole is located between the bottom of the gas storage cylinder cavity and the piston, and is close to the bottom of the gas storage cylinder cavity.
[0014] Preferably, the bottom of the matching part is provided with an adapter groove and a second through hole, the bottom of the regulating valve is provided with a first through hole, the first through hole and the second through hole are matched, the support column at the bottom of the regulating valve is sleeved in the adapter groove so that the regulating valve can rotate in the matching part, and the handle at the top of the regulating valve protrudes from the outer surface of the air storage cylinder.
[0015] The beneficial effects of this utility model are as follows: through the cooperation of the air storage cylinder, piston, regulating valve and limiting protrusion of the pneumatic buffer structure, the pressure applied to the extrusion block is precisely controlled. The design of the regulating valve allows the operator to flexibly adjust the buffer pressure according to actual needs. The friction between the limiting protrusion and the inner wall of the air storage cylinder further offsets part of the pressure, effectively avoiding the problem of reduced thickness or hardening of the sealing ring due to excessive pressure during the repair process, and significantly improving the yield rate after repair. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0017] Figure 1 This is a perspective view of the entire embodiment.
[0018] Figure 2 This is a perspective view of the pneumatic buffer structure in this embodiment.
[0019] Figure 3 This is a cross-sectional view of the pneumatic buffer structure in this embodiment.
[0020] Figure 4 This is a perspective view of the regulating valve and its components on the pneumatic buffer structure in this embodiment.
[0021] Figure 5 This is a cross-sectional view of the regulating valve and its assembly in this embodiment.
[0022] Figure 6 This is a plan view of the regulating valve and its accessories in this embodiment.
[0023] In the figure: positioning block 100, pressing block 200, driving assembly 300, pneumatic buffer structure 400, heating unit 500, temperature control unit 600, heating module 700, worktable 800, product 900;
[0024] Cylinder 301, shaft 302, slide rod 303, slider 304;
[0025] Air storage cylinder 401, cavity 401a, pressure relief hole 401b, spring 402, piston 403, extension block 404, limiting protrusion 405;
[0026] First through hole 406a, support post 406b, handle 406c, adapter groove 407a, second through hole 407b. Detailed Implementation
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0030] Example
[0031] Reference Figures 1 to 6This embodiment provides a repair mechanism for automotive sealing ring sleeves, including a worktable 800, on which a positioning block 100 for positioning a product 900 is provided and a pressing block 200 slidably disposed via a drive assembly 300, the pressing block 200 cooperating with a heating module 700; characterized in that: a pneumatic buffer structure 400 is provided on the drive assembly 300 / pressing block 200, a matching 407 is provided on the pneumatic buffer structure 400, and an adjusting valve 406 is rotatably disposed on the matching 407; by rotating the adjusting valve 406, its through hole overlaps or intersects with the through hole of the matching 407, so as to adjust the diameter of the exhaust hole of the pneumatic buffer structure 400;
[0032] The worktable 800 is equipped with a positioning block 100 for positioning the product 900 and a pressing block 200 slidably disposed via the drive assembly 300. The pressing block 200 cooperates with the heating module 700. The drive assembly 300 is equipped with a pneumatic buffer structure 400, and a matching 407 is provided on the pneumatic buffer structure 400. A regulating valve 406 is rotatably mounted on the matching 407. By rotating the regulating valve 406, its through hole overlaps or staggers with the through hole of the matching 407, thereby adjusting the diameter of the exhaust hole of the pneumatic buffer structure 400, and thus controlling the pressure applied to the sealing ring by the pressing block 200.
[0033] Specific implementation process:
[0034] Place the automotive seal (product 900) to be repaired on the positioning block 100 of the worktable 800 to ensure its position is fixed.
[0035] Start the drive assembly 300, which drives the extrusion block 200 to slide towards the sealing ring, while the heating module 700 starts heating.
[0036] Before the extrusion block 200 contacts the sealing ring, the exhaust port diameter of the pneumatic buffer structure 400 is adjusted by rotating the regulating valve 406 to achieve the preset buffer pressure value.
[0037] Under the action of the pneumatic buffer structure 400, the extrusion block 200 heats and extrudes the sealing ring with uniform and moderate pressure, avoiding the reduction of the sealing ring thickness or hardening of the texture due to excessive pressure.
[0038] After heating and extrusion, maintain pressure for a period of time, then cool to allow the liquid silicone at the repair site to solidify.
[0039] Finally, the drive assembly 300 drives the extrusion block 200 back to its original position and removes the repaired sealing ring.
[0040] In another embodiment, such as Figure 1 , Figure 2 As shown, in another embodiment, as Figure 1 and Figure 2As shown, the drive assembly 300 includes a cylinder 301, a shaft 302, a slide rod 303, and a slider 304. The cylinder 301 is fixedly mounted on the worktable 800, and a pneumatic buffer structure 400 is provided between its shaft 302 and the extrusion block 200. The extrusion block 200 is equipped with a slider 304. One end of the slide rod 303 is fixed to the worktable 800, and the other end is fixed to the positioning block 100. The slider 304 is slidably mounted on the slide rod 303 to achieve smooth sliding of the extrusion block 200.
[0041] In another embodiment, such as Figures 2-6 As shown, the pneumatic buffer structure 400 includes an air storage cylinder 401, a spring 402, a piston 403, an extension block 404, a limiting protrusion 405, a regulating valve 406, and a matching 407. One end of the air storage cylinder 401 is connected to the compression block 200. The spring 402 is installed in the cavity 401a of the air storage cylinder 401, and the piston 403 is disposed in the cavity 401a in cooperation with the spring 402. The piston 403 is provided with an extension block 404, which is connected to the shaft 302 of the cylinder 301. The extension block 404 is provided with a limiting protrusion 405, the outer surface of which contacts the inner wall of the air storage cylinder 401. This not only limits the movement range of the piston 403 but also offsets part of the pressure of the compression block 200 on the sealing ring through friction, thereby further reducing the pressure acting on the sealing ring.
[0042] The gas storage cylinder 401 is provided with a pressure relief hole 401b, and a matching device 407 is provided inside the pressure relief hole 401b. A regulating valve 406 is provided on the matching device 407. The pressure relief hole 401b is located between the bottom of the cavity 401a of the gas storage cylinder 401 and the piston 403, and is close to the bottom of the cavity 401a of the gas storage cylinder 401. The bottom of the matching device 407 is provided with an adapter groove 407a and a second through hole 407b. The bottom of the regulating valve 406 is provided with a first through hole 406a, which mates with the second through hole 407b. The support column 406b at the bottom of the regulating valve 406 is fitted into the adapter groove 407a, allowing the regulating valve 406 to rotate within the matching device 407. The handle 406c at the top of the regulating valve 406 protrudes from the outer surface of the gas storage cylinder 401 for easy manual adjustment.
[0043] Specific implementation process:
[0044] Place the automotive seal (product 900) to be repaired on the positioning block 100 of the worktable 800 to ensure its position is fixed.
[0045] When cylinder 301 is activated, the shaft 302 of cylinder 301 pushes piston 403 to move within cavity 401a of storage cylinder 401 via extension block 404. At the same time, extrusion block 200 slides toward sealing ring, and heating module 700 begins heating.
[0046] Before the extrusion block 200 contacts the sealing ring, the first through hole 406a of the regulating valve 406 is overlapped or staggered with the second through hole 407b of the matching 407 by rotating the handle 406c at the top of the regulating valve 406, thereby adjusting the diameter of the pressure relief hole 401b and controlling the air pressure buffering effect in the air storage cylinder 401.
[0047] Under the action of the pneumatic buffer structure 400, the extrusion block 200 heats and extrudes the sealing ring with uniform and moderate pressure. The friction between the limiting protrusion 405 and the inner wall of the air storage cylinder 401 further offsets part of the pressure, preventing the sealing ring from becoming thinner or harder due to excessive pressure.
[0048] After heating and extrusion, maintain pressure for a period of time, then cool to allow the liquid silicone at the repair site to solidify.
[0049] Cylinder 301 drives shaft 302 to retract, piston 403 resets under the action of spring 402, extrusion block 200 returns to its original position, and the repaired sealing ring is removed;
[0050] This embodiment achieves precise control over the pressure applied to the extrusion block 200 through the cooperation of the air storage cylinder 401, piston 403, regulating valve 406, and limiting protrusion 405 in the pneumatic buffer structure 400. The design of the regulating valve 406 allows the operator to flexibly adjust the buffer pressure according to actual needs, while the friction between the limiting protrusion 405 and the inner wall of the air storage cylinder 401 further offsets part of the pressure, effectively avoiding the problem of reduced thickness or hardening of the sealing ring due to excessive pressure during the repair process, and significantly improving the yield rate after repair.
[0051] In another embodiment, such as Figure 1 , Figure 2 As shown, the heating module 700 includes a heating unit 500 and a temperature control unit 600. The heating unit 500 is disposed on the extrusion block 200, and the temperature control unit 600 is disposed on the worktable 800. The temperature control unit 600 is electrically connected to the heating unit 500. The heating unit 500, disposed on the extrusion block 200, is used to directly heat the sealing ring; the temperature control unit 600, disposed on the worktable 800, is electrically connected to the heating unit 500, and is used to precisely control the temperature of the heating unit 500.
[0052] The heating module 700 includes a heating unit 500 and a temperature control unit 600. The heating unit 500 uses an MI heating element (e.g., an MI1020 type heating element), fixedly mounted on the extrusion block 200, for directly heating the sealing ring. The MI heating element features rapid heating, high temperature uniformity, and high temperature resistance, meeting the precise temperature requirements during repair. The temperature control unit 600 uses an Omron E5CS series digital temperature controller (e.g., E5CS-R1KJ), mounted on the workbench 800, and electrically connected to the heating unit 500 via a cable. This temperature controller incorporates a PID control algorithm, supporting high-precision temperature control (±0.5℃), and can monitor the temperature of the heating unit 500 in real time, automatically adjusting the heating power according to preset temperature parameters.
[0053] Specific implementation process:
[0054] Place the automotive seal (product 900) to be repaired on the positioning block 100 of the worktable 800 to ensure its position is fixed.
[0055] When cylinder 301 is activated, the shaft 302 of cylinder 301 pushes piston 403 to move within cavity 401a of storage cylinder 401 via extension block 404, while the compression block 200 slides toward the sealing ring.
[0056] The operator sets the heating temperature (e.g., 150°C) using the Omron E5CS temperature controller. The temperature control unit 600 controls the MI heating element to start heating according to the set value, so that the extrusion block 200 can be heated to the target temperature quickly.
[0057] Before the extrusion block 200 contacts the sealing ring, the first through hole 406a of the regulating valve 406 is overlapped or staggered with the second through hole 407b of the matching 407 by rotating the handle 406c at the top of the regulating valve 406, thereby adjusting the diameter of the pressure relief hole 401b and controlling the air pressure buffering effect in the air storage cylinder 401.
[0058] Under the action of the pneumatic buffer structure 400, the extrusion block 200 heats and extrudes the sealing ring with uniform and moderate pressure. The friction between the limiting protrusion 405 and the inner wall of the air storage cylinder 401 further offsets part of the pressure, preventing the sealing ring from becoming thinner or harder due to excessive pressure.
[0059] After heating and extrusion are completed, the pressure is maintained for a period of time. Then, the temperature control unit 600 controls the MI heating plate to stop heating, allowing the liquid silicone at the repair site to cool and solidify naturally.
[0060] Cylinder 301 drives shaft 302 to retract, piston 403 resets under the action of spring 402, extrusion block 200 returns to its original position, and the repaired sealing ring is removed.
[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An automobile sealing ring sheath repair mechanism, comprising a workbench (800), the workbench (800) is provided with a positioning block (100) for positioning a product (900) and an extrusion block (200) slidingly arranged through a driving assembly (300), the extrusion block (200) is matched with a heating module (700); characterized in that: The drive assembly (300) / extrusion block (200) is provided with a pneumatic buffer structure (400), and the pneumatic buffer structure (400) is provided with a matching (407). The matching (407) is rotatably provided with a regulating valve (406). By rotating the regulating valve (406), its through hole overlaps or intersects with the through hole of the matching (407) to adjust the diameter of the exhaust hole of the pneumatic buffer structure (400).
2. The automotive sealing ring sleeve repair mechanism as described in claim 1, characterized in that: The drive assembly (300) includes a cylinder (301), a shaft (302), a slide rod (303), and a slider (304). A pneumatic buffer structure (400) is provided between the shaft (302) of the cylinder (301) and the extrusion block (200).
3. The automotive sealing ring sleeve repair mechanism as described in claim 2, characterized in that: The cylinder (301) is mounted on the worktable (800), the extrusion block (200) is provided with a slider (304), one end of the slide rod (303) is mounted on the worktable (800), and the other end is mounted on the positioning block (100). The slider (304) is slidably mounted on the slide rod (303).
4. The automotive sealing ring sleeve repair mechanism as described in claim 1, characterized in that: The heating module (700) includes a heating unit (500) and a temperature control unit (600). The heating unit (500) is located on the extrusion block (200), and the temperature control unit (600) is located on the worktable (800). The temperature control unit (600) is electrically connected to the heating unit (500).
5. The automotive sealing ring sleeve repair mechanism as described in claim 1 or 2, characterized in that: The pneumatic buffer structure (400) includes an air storage cylinder (401), a spring (402), a piston (403), an extension block (404), a limiting protrusion (405), an adjusting valve (406), and a matching component (407).
6. The automotive sealing ring sleeve repair mechanism as described in claim 5, characterized in that: One end of the gas storage cylinder (401) is connected to the extrusion block (200). A spring (402) is provided in the cavity (401a) of the gas storage cylinder (401). A piston (403) is provided in the cavity (401a) in cooperation with the spring (402). An extension block (404) is provided on the piston (403) and connected to the shaft (302).
7. The automotive sealing ring sleeve repair mechanism as described in claim 5, characterized in that: The extension block (404) is provided with a limiting protrusion (405), and the outer surface of the limiting protrusion (405) is in contact with the inner wall of the gas storage cylinder (401).
8. The automotive sealing ring sleeve repair mechanism as described in claim 5, characterized in that: The gas storage cylinder (401) is provided with a pressure relief hole (401b), and a matching device (407) is provided inside the pressure relief hole (401b). A regulating valve (406) is provided on the matching device (407).
9. The automotive sealing ring sleeve repair mechanism as described in claim 8, characterized in that: The pressure relief hole (401b) is located between the bottom of the cavity (401a) of the gas storage cylinder (401) and the piston (403), and is close to the bottom of the cavity (401a) of the gas storage cylinder (401).
10. The automotive sealing ring sleeve repair mechanism as described in claim 8, characterized in that: The bottom of the fitting (407) is provided with an adapter groove (407a) and a second through hole (407b), and the bottom of the regulating valve (406) is provided with a first through hole (406a). The first through hole (406a) and the second through hole (407b) cooperate with each other. The support column (406b) at the bottom of the regulating valve (406) is sleeved in the adapter groove (407a) so that the regulating valve (406) can rotate in the fitting (407). The handle (406c) at the top of the regulating valve (406) protrudes from the outer surface of the gas storage cylinder (401).