A silica gel button contact point correction device

Abstract

The utility model discloses a kind of silica gel button contact point correction devices, belong to silica gel button production technical field.A kind of silica gel button contact point correction device, including base, the lower presser for silica gel button and contact piece compression is provided on the base, further includes: workbench is slidably connected on base, wherein, equidistantly arranged with positioning groove on workbench, positioning groove is slidably connected with movable sleeve, guiding ring is provided in movable sleeve, the inside of guiding ring forms correction area, and guiding ring is fixedly connected with workbench, when contact piece is placed in guiding ring, contact piece is affected by gravity and slides to the bottom of correction area;Driving element is arranged in base, driving element is in contact with workbench;The utility model forms correction area by guiding ring and movable sleeve, using contact piece dead weight cooperation driving element makes workbench move to make it automatically slide positioning, provide accurate initial station for compression, effectively reduce alignment time and artificial deviation.

Description

Technical Field

[0001] This utility model relates to the field of silicone button manufacturing technology, and in particular to a silicone button contact point correction device. Background Technology

[0002] Silicone buttons are elastic switches that achieve conductivity by pressing the silicone dome to make the conductive base at the bottom contact the circuit contacts. They are widely used in remote controls, keyboards, and other devices. Due to the micron-level tolerances in the silicone molding, conductive base printing, and assembly processes, contact misalignment can easily occur, leading to poor contact or inconsistent feel. Therefore, a button contact correction device is required in production. The offset is detected by visual positioning, and the silicone base is calibrated by micro-deformation using technologies such as hot pressing. This actively compensates for accumulated errors, ensuring that all button contacts are precisely aligned with the circuit board, guaranteeing touch sensitivity and consistent feel.

[0003] Traditional production processes rely heavily on manual placement and positioning, which is not only inefficient but also prone to contact piece misalignment due to human error. This results in inaccurate contact point positions after pressing, leading to poor contact and inconsistent button feel. Although some automated equipment attempts to use mechanical positioning, they generally suffer from complex structures, insufficient positioning accuracy, or inconvenient adjustments. In particular, they lack the ability to automatically correct the initial position of the contact pieces, making it difficult to meet the demands of high-efficiency and high-consistency mass production. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where the contact point position is inaccurate after pressing due to human operation, resulting in poor contact and inconsistent button feel. Therefore, a silicone button contact point correction device is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A silicone button contact point correction device includes a base, on which a pressing component for pressing the silicone button and a contact piece are disposed. The device further includes a worktable slidably connected to the base, wherein positioning grooves are evenly spaced on the worktable, and a movable sleeve is slidably connected to each positioning groove. A guide ring is disposed within the movable sleeve, and a correction zone is formed on the inner side of the guide ring. The guide ring is fixedly connected to the worktable. When the contact piece is placed within the guide ring, it slides down to the bottom of the correction zone under the influence of gravity. A driving component is disposed within the base and contacts the worktable. When the driving component operates, the worktable moves and places the contact piece at the bottom of the correction zone.

[0007] Preferably, the correction zone formed inside the guide ring is tapered, with the larger end of the tapered correction zone facing the pressure plate and the smaller end contacting the surface of the worktable, for guiding the contact piece into the bottom of the correction zone.

[0008] Preferably, the base is provided with symmetrical guide grooves, and the worktable is symmetrically connected with slide bars, which are slidably connected in the guide grooves. Both ends of the slide bars are fixedly connected with return springs, and the two ends of the return springs abut against the slide bars and the base respectively. When the worktable moves, the return springs deform and store or release elastic force.

[0009] Preferably, the driving component includes a drive motor fixedly connected to the base, and a cam is fixedly connected to the output end of the drive motor via a coupling. A contact rod is fixedly connected to one of the slide bars, and the contact rod contacts the cam. When the cam rotates, the contact rod moves and pushes the slide bar and the worktable to move.

[0010] Preferably, the pressing component includes a frame fixedly connected to the base, guide columns symmetrically connected to the frame, a pressure plate slidably connected to the guide columns, a servo motor fixedly connected to the frame, and a screw fixedly connected to the output end of the servo motor through a coupling. The screw is threadedly connected to the pressure plate. When the screw rotates, the pressure plate moves upward or downward.

[0011] Preferably, a buffer spring is fixedly connected to the bottom end of the movable sleeve, and the two ends of the buffer spring abut against the worktable and the movable sleeve respectively. When the pressure plate is pressed down, the movable sleeve moves and squeezes the buffer spring.

[0012] Compared with the prior art, this utility model provides a silicone button contact point correction device, which has the following beneficial effects:

[0013] 1. This silicone button contact point correction device uses equidistantly arranged positioning grooves and a sliding movable sleeve on the worktable, with a fixed guide ring integrated inside the sleeve to form a correction zone. This utilizes the gravity of the contact piece itself, allowing it to automatically slide down and stably place at the bottom of the correction zone, providing a precise initial position for subsequent pressing operations. The achieved guiding and positioning effect reduces alignment time and effectively avoids correction errors caused by manual placement deviations, thereby improving the consistency of silicone button and contact piece pressing correction and overall production efficiency.

[0014] 2. This silicone button contact point correction device uses a drive motor, cam, and contact rod in conjunction. The rotation of the cam directly pushes the contact rod, which is rigidly connected to the worktable, to accurately convert the rotational motion of the motor into the horizontal reciprocating movement of the worktable. This ensures the accuracy and consistency of the worktable's feed stroke, thereby helping the contact piece enter the bottom of the correction zone and avoiding the problem of large deviations after the contact piece and the silicone button are pressed together.

[0015] The parts not covered in this device are the same as or can be implemented using existing technologies. This utility model forms a correction zone through a guide ring and a movable sleeve. It uses the self-weight of the contact piece in conjunction with the driving component to move the worktable so that it automatically slides down and positions itself, providing a precise initial position for pressing and effectively reducing alignment time and manual deviation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0017] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0018] Figure 3 This is a partial structural diagram of the present invention. Figure 2 ;

[0019] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Base; 11. Guide groove; 2. Worktable; 21. Positioning groove; 22. Guide ring; 23. Movable sleeve; 24. Buffer spring; 25. Slide bar; 26. Return spring; 3. Stand; 4. Guide column; 5. Pressure plate; 6. Servo motor; 61. Screw; 7. Drive motor; 71. Cam; 8. Contact rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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.

[0024] Example:

[0025] Reference Figures 1-5A silicone button contact point correction device includes a base 1, on which a pressing member is provided for pressing the silicone button and the contact piece together. It also includes a worktable 2 slidably connected to the base 1, wherein positioning grooves 21 are arranged at equal intervals on the worktable 2, and a movable sleeve 23 is slidably connected to the positioning grooves 21. A guide ring 22 is provided inside the movable sleeve 23, and a correction zone is formed on the inner side of the guide ring 22. The guide ring 22 is fixedly connected to the worktable 2. When the contact piece is placed inside the guide ring 22, the contact piece slides down to the bottom of the correction zone due to gravity. A driving member is provided inside the base 1, and the driving member is in contact with the worktable 2. When the driving member is activated, the worktable 2 moves and places the contact piece at the bottom of the correction zone.

[0026] In this embodiment, through the collaborative design of the movable sleeve 23 and the guide ring 22, a movable precision correction station is constructed for the contact piece. This not only realizes the initial guidance and self-positioning of the contact piece, but more importantly, it allows the entire correction area to move together with the worktable 2. This provides a key structural foundation for accurately transporting the contact piece to the pressing station in subsequent steps, ensuring the continuity between processes and the uniformity of the positioning reference.

[0027] Reference Figure 2 and Figure 4 As shown, the correction zone formed inside the guide ring 22 is tapered, with the larger end of the tapered correction zone facing the pressure plate 5 and the smaller end contacting the surface of the worktable 2, which is used to guide the contact piece into the bottom of the correction zone.

[0028] In this embodiment, the tapered correction zone structure plays a key guiding and self-centering role. When the contact piece falls in, its conical inner wall can effectively guide the contact piece to slide smoothly, and during the falling process, the inclined surface gradually corrects the horizontal position deviation of the contact piece, ensuring that it can finally be stably located at the bottom of the correction zone with extremely high coaxiality, laying a solid foundation for the subsequent precise pressing with the silicone button.

[0029] Reference Figure 3 and Figure 5 As shown, guide grooves 11 are symmetrically provided on the base 1, and slide bars 25 are symmetrically connected on the worktable 2. The slide bars 25 are slidably connected in the guide grooves 11. Both ends of the slide bars 25 are fixedly connected with return springs 26. The two ends of the return springs 26 abut against the slide bars 25 and the base 1 respectively. When the worktable 2 moves, the return springs 26 deform and store or release the elastic force.

[0030] In this embodiment, the cooperation between the slide bar 25 and the guide groove 11 provides the worktable 2 with a precise linear motion trajectory, effectively preventing the worktable 2 from deflecting or jamming during reciprocating movement. The symmetrically arranged return springs 26 play a dual role: first, they provide a reliable return force when the drive component returns, ensuring that the worktable 2 can automatically return to its initial position; second, this elastic connection method can absorb some of the motion impact and vibration, improving the stability and reliability of the entire device during operation.

[0031] Reference Figure 2 and Figure 3 As shown, the driving component includes a drive motor 7 fixedly connected in the base 1. The output end of the drive motor 7 is fixedly connected to a cam 71 via a coupling. A contact rod 8 is fixedly connected to one of the slide bars 25, and the contact rod 8 contacts the cam 71. When the cam 71 rotates, the contact rod 8 moves and pushes the slide bar 25 and the worktable 2 to move.

[0032] In this embodiment, the cam 71 and the contact rod 8 are used in combination to precisely control the moving speed, stroke and dwell time at the midpoint of the worktable 2. This drive method has a robust structure and a rapid response, making it very suitable for high-frequency, short-stroke reciprocating motion scenarios. As a result, during the reciprocating motion of the worktable 2, the contact piece gradually slides to the bottom of the correction area due to its own weight and inertia, thereby improving the effect of contact piece position correction and enhancing the alignment effect of subsequent pressing work and silicone buttons.

[0033] Reference Figure 1 and Figure 2 As shown, the pressing component includes a frame 3 fixedly connected to the base 1, guide columns 4 symmetrically connected to the frame 3, a pressure plate 5 slidably connected to the guide columns 4, a servo motor 6 fixedly connected to the frame 3, and a screw 61 fixedly connected to the output end of the servo motor 6 through a coupling. The screw 61 is threadedly connected to the pressure plate 5. When the screw 61 rotates, the pressure plate 5 moves up or down.

[0034] In this embodiment, the pressing component adopts a transmission method of servo motor 6 and screw 61, which has higher control precision compared with pneumatic or hydraulic drive. Servo motor 6 can precisely control the pressing stroke and speed of pressure plate 5, while providing stable and adjustable pressing force. The symmetrically arranged guide columns 4 ensure that pressure plate 5 will not deflect or tilt during vertical movement, thereby ensuring that the pressing force is applied evenly and vertically to the silicone button, avoiding correction errors or component damage caused by off-center loading.

[0035] Reference Figure 2 and Figure 4As shown, a buffer spring 24 is fixedly connected to the bottom end of the movable sleeve 23. The two ends of the buffer spring 24 abut against the worktable 2 and the movable sleeve 23 respectively. When the pressure plate 5 is pressed down, the movable sleeve 23 moves and squeezes the buffer spring 24.

[0036] In this embodiment, when the pressure plate 5 is pressed down, the buffer spring 24 is compressed. This process can transform rigid impact into flexible pressure, forming a gradual pressing stroke. This not only effectively prevents physical damage to silicone buttons or contact sheets caused by instantaneous rigid impact, but also makes the pressing process more gentle and controllable, which is conducive to the release of material stress, thereby obtaining a more stable and reliable pressing correction effect.

[0037] In this invention, the operator first places the contact piece to be corrected inside the guide ring 22. Then, the drive motor 7 is started to rotate the cam 71. The cam 71 pushes the contact rod 8 fixed on the slide bar 25, causing the worktable 2 to move precisely along the guide groove 11. At this time, the contact piece slides down to the bottom along the tapered inner wall of the correction area under the action of gravity, and completes automatic centering and positioning in this process. The contact piece that has completed the initial positioning is then transported to the pressing station. During this transport process, the return spring 26 stores energy to provide power for the return reset of the worktable 2. When the worktable 2 reaches the predetermined position, the servo motor 6 starts and drives the pressure plate 5 to press down smoothly along the guide post 4 through the screw 61. The pressure plate 5 first contacts the movable sleeve 23 and presses it down. At this time, the bottom buffer spring 24 is compressed, converting the rigid impact into progressive pressure. The pressure plate 5 continues to move down, finally pressing the silicone button with the precisely positioned contact piece. Throughout the pressing process, the buffer spring 24 continuously provides flexible buffering to ensure that the pressing force is applied evenly, while the guide column 4 system effectively prevents off-center loading. After pressing is completed, the servo motor 6 reverses and drives the pressure plate 5 to rise. The movable sleeve 23 returns to its initial height under the action of the reset force of the buffer spring 24. At the same time, the drive motor 7 continues to run to the return section of the cam 71, and the worktable 2 accurately returns to the loading station under the push of the reset spring 26.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A silicone button contact point correction device, comprising a base (1), wherein a pressing member for pressing the silicone button and the contact sheet is disposed on the base (1), characterized in that, Also includes: The worktable (2) is slidably connected to the base (1). The workbench (2) has equidistantly arranged positioning grooves (21), and a movable sleeve (23) is slidably connected to the positioning grooves (21). A guide ring (22) is provided inside the movable sleeve (23). A correction zone is formed inside the guide ring (22), and the guide ring (22) is fixedly connected to the workbench (2). When the contact piece is placed inside the guide ring (22), the contact piece slides to the bottom of the correction zone due to gravity. The drive unit is set in the base (1) and is in contact with the worktable (2). When the drive unit is working, the worktable (2) moves and places the contact piece at the bottom of the correction area.

2. The silicone button contact point correction device according to claim 1, characterized in that, The guide ring (22) forms a correction zone that is tapered, with the larger end of the tapered correction zone facing the pressure plate (5) and the smaller end in contact with the surface of the worktable (2), which is used to guide the contact piece into the bottom of the correction zone.

3. The silicone button contact point correction device according to claim 2, characterized in that, The base (1) is symmetrically provided with guide grooves (11), and the worktable (2) is symmetrically connected with slide bars (25). The slide bars (25) are slidably connected in the guide grooves (11). Both ends of the slide bars (25) are fixedly connected with return springs (26). The two ends of the return springs (26) abut against the slide bars (25) and the base (1) respectively. When the worktable (2) moves, the return springs (26) deform and store or release elastic force.

4. The silicone button contact point correction device according to claim 3, characterized in that, The driving component includes a drive motor (7) fixedly connected in the base (1). The output end of the drive motor (7) is fixedly connected to a cam (71) via a coupling. A contact rod (8) is fixedly connected to one of the slide bars (25), and the contact rod (8) contacts the cam (71). When the cam (71) rotates, the contact rod (8) moves and pushes the slide bar (25) and the worktable (2) to move.

5. A silicone button contact point correction device according to claim 4, characterized in that, The pressing component includes a frame (3) fixedly connected to the base (1), guide columns (4) symmetrically connected to the frame (3), and a pressure plate (5) slidably connected to the guide columns (4). A servo motor (6) is fixedly connected to the frame (3), and a screw (61) is fixedly connected to the output end of the servo motor (6) through a coupling. The screw (61) is threadedly connected to the pressure plate (5). When the screw (61) rotates, the pressure plate (5) moves up or down.

6. A silicone button contact point correction device according to claim 5, characterized in that, The bottom end of the movable sleeve (23) is fixedly connected to a buffer spring (24). The two ends of the buffer spring (24) abut against the worktable (2) and the movable sleeve (23) respectively. When the pressure plate (5) is pressed down, the movable sleeve (23) moves and squeezes the buffer spring (24).

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