Bending equipment for automobile sealing strips

Abstract

The present invention discloses a bending device for automotive sealing strips. The device comprises a base plate, a reference block and a first pressure block disposed oppositely on the base plate. The surfaces of the reference block and the first pressure block are standard curved surfaces. An elastic sheet is disposed between the base plate and the pressure block. One end of the elastic sheet is fixed to the base plate, and the other end of the elastic sheet is connected to a power device. The sealing strip is clamped to the elastic sheet along its length. The power device drives the elastic sheet to bend and completely conform to the standard curved surface of the base plate. A second pressure block is disposed above the base plate. The first and second pressure blocks are each connected to the power device. The power device drives the first pressure block to move horizontally and apply pressure to the elastic sheet conforming to the standard curved surface. The power device drives the second pressure block to press vertically downward on the elastic sheet and the standard curved surface. The bending device utilizes a simple mechanical structure to achieve automotive sealing strip bending, and the resulting product is highly accurate.

Description

Technical Field

[0001] The invention relates to a bending device for a sealing strip, in particular to a bending device for an automobile sealing strip. Background Art

[0002] Automotive sealing strips are used to seal between the car's glass and the windshield frame, preventing rain, dust, and other particles from entering the vehicle through the gap. During installation, the sealing strip must first be attached to the glass. However, the edges of typical automotive glass have a certain curvature or a specific shape, so the sealing strip must be pre-bent to fit the windshield's contours for easier installation.

[0003] However, the traditional sealing strip bending equipment structure uses two simple pressure plates with standard curvature bending surfaces, places the sealing strip between the two bending surfaces, and realizes bending and forming by simply pressurizing and merging the two pressure plates. However, when bending the sealing strip with the above structure, if the length of the bending section to be bent is large, it is difficult to ensure the curvature of the middle part of the bending section. Therefore, new bending equipment has also appeared on the market, such as the Chinese invention patent "A Sealing Strip Bending Machine", application (patent) number: CN201721326697.7, whose workbench is equipped with a mold, and the mold is provided with a mold cavity, which is adapted to the bending and forming structure of the sealing strip, and the positioning mechanism and the side pressure mechanism are respectively installed on the front and back sides of the mold, and the side pressure mechanism faces the mold cavity. The side pressure mechanism includes multiple side pressure cylinders and side pressure blocks connected to the side pressure cylinders, and each side pressure cylinder pushes the side pressure block to fix the sealing strip in the mold cavity laterally in turn. As a result, the sealing strip bending machine has a compact structure and simple operation, effectively avoids position deviation of the sealing strip, and realizes precise positioning and rapid bending and forming. However, the above mechanism is relatively complex and requires multiple power components to be equipped and coordinated, which makes it a high-cost bending device.

[0004] In view of this, the inventors of the present invention developed the present application "Bending device for automobile sealing strip" to improve the problems of the prior art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a bending device for automobile sealing strips, which adopts a simple mechanical structure to realize the press bending of automobile sealing strips, and the bent product has high precision.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a bending device for automobile sealing strips, comprising a substrate, a reference block and a first pressure block relatively arranged on the substrate, the surfaces opposite to the reference block and the first pressure block being standard curved surfaces, an elastic sheet being arranged between the reference block and the pressure block, one end of the elastic sheet being fixed to the substrate, and the other end of the elastic sheet being connected to a power device, the sealing strip being clamped on the elastic sheet along the length direction of the elastic sheet, the power device driving the elastic sheet to bend and completely fit on the standard curved surface of the reference block, a second pressure block being further arranged above the reference block, the first pressure block and the second pressure block being respectively connected to the power device, the power device driving the first pressure block to move horizontally and apply pressure to the elastic sheet fitted on the standard curved surface, and the power device driving the second pressure block to press vertically downward on the elastic sheet and the standard curved surface.

[0007] A further preferred solution of the present invention is that the other end of the elastic sheet is connected to a clamping member, and the clamping member is connected to the power device through a connecting rod.

[0008] A further preferred embodiment of the present invention is as follows: the base plate is provided with a track, the track is arc-shaped, the connecting rod is located in the track and can only move circumferentially along the track, and the moving connecting rod drives the elastic sheet through the clamping part to maintain a flat plate shape or a curved plate shape that is completely in contact with the standard curved surface.

[0009] A further preferred embodiment of the present invention is as follows: the power device includes a first cylinder, a connecting plate movably connected to the first cylinder is provided at the bottom of the base plate, one end of the connecting plate is connected to a rotating shaft, and the other end of the connecting plate is connected to a connecting rod, and the rotating shaft is located at the center of the track.

[0010] A further preferred embodiment of the present invention is as follows: a notch is provided on the surface of the connecting plate, a spherical joint is movably installed in the notch, a connecting ring is provided at the end of the connecting rod of the first cylinder, the spherical joint is clamped in the connecting ring, the first cylinder is located on one side of the connecting plate, and when the first cylinder is working, it will push the connecting plate to rotate around the rotating axis, and the connecting rod will rotate around the rotating axis synchronously.

[0011] A further preferred embodiment of the present invention is as follows: a strip-shaped depression is provided on the upper end surface of the reference block along the standard curved surface, the bottom surface of the depression is flush with the top surface of the elastic sheet, the power device includes a second cylinder connected to the reference block, and the operation of the second cylinder will push the reference block upward, and the upward-moving reference block can drive the sealing strip clamped on the elastic sheet to detach from the elastic sheet.

[0012] A further preferred solution of the present invention is that the second pressing block vertically presses downward on the elastic sheet, the strip-shaped recess and the top surface of the first pressing block.

[0013] A further preferred embodiment of the present invention is as follows: the surface of the first pressure block opposite to the reference block is a curved surface adapted to the standard curved surface; the power device includes a third cylinder connected to the first pressure block; the third cylinder drives the first pressure block to move horizontally until it is pressed and fixed on the elastic sheet attached to the reference block.

[0014] A further preferred solution of the present invention is that a positioning piece is further provided at one end of the elastic sheet, and the positioning piece is attached to the surface of the elastic sheet and adapted to the structure of the sealing strip.

[0015] Compared with the prior art, the advantage of the present invention is that the sealing strip is installed by clamping it onto the elastic sheet along its length. The power device can drive the elastic sheet to bend and completely fit the standard curved surface of the reference block. In other words, after the sealing strip is installed, the present invention can pre-bend the sealing strip by bending the elastic sheet, so that the sealing strip can fit well on the standard curved surface before pressure is applied, thereby ensuring the bending accuracy of the sealing strip. The power device then drives the first pressure block to move horizontally and apply pressure to the sealing strip that is attached to the standard curved surface, thereby bending the sealing strip. In order to ensure that the deformation of the overall structure of the sealing strip after being subjected to pressure is within a predetermined range, the present invention also provides a second pressure block to apply pressure to the top surface of the sealing strip, ensuring that the top surface of the sealing strip does not undergo unexpected deformation due to bending. This further ensures the structural accuracy of the sealing strip after bending. The present invention uses a simple mechanical structure to achieve pressure bending of automotive sealing strips, resulting in low processing costs and high precision of the bent product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 Schematic diagram of the bottom structure of the present invention;

[0019] Figure 3 It is a structural state diagram of the present invention in a non-working state;

[0020] Figure 4 This is a structural state diagram of the working state of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings.

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] like Figures 1 to 4 As shown: A bending device for an automobile sealing strip includes a substrate 1, a reference block 2 and a first pressing block 3 relatively arranged on the substrate 1, the surfaces opposite to the reference block 2 and the first pressing block 3 are standard curved surfaces 4, an elastic sheet 5 is arranged between the reference block 2 and the pressing block, one end of the elastic sheet 5 is fixed to the substrate 1, and the other end of the elastic sheet 5 is connected to a power device, and the sealing strip 10 is clamped on the elastic sheet 5 along the length direction of the elastic sheet 5, and the power device drives the elastic sheet 5 to bend and completely fit on the standard curved surface 4 of the reference block 2, and a second pressing block 6 is further arranged above the reference block 2, the first pressing block 3 and the second pressing block 6 are respectively connected to the power device, and the power device drives the first pressing block 3 to move horizontally and pressurize the elastic sheet 5 fitted on the standard curved surface 4, and the power device drives the second pressing block 6 to press vertically downward on the elastic sheet 5 and the standard curved surface 4.

[0024] The other end of the elastic sheet 5 is connected to the clamping member 7 , and the clamping member 7 is connected to the power device through a connecting rod 8 .

[0025] Base plate 1 defines an arc-shaped track 9. Connecting rod 8 is located within track 9 and can only move circumferentially along track 9. The moving connecting rod 8, through clamping member 7, drives elastic sheet 5 to maintain a flat plate shape or a curved plate shape that completely conforms to standard curved surface 4. The track 9 is designed to ensure that the other end of elastic sheet 5 moves in an arc segment, ensuring that elastic sheet 5 remains straight throughout its movement, thereby preventing the sealing strip 10 from wrinkling during its entire movement.

[0026] The power device includes a first cylinder. A connecting plate 11 movably connected to the first cylinder is provided at the bottom of the base plate 1. One end of the connecting plate 11 is connected to the rotating shaft 12, and the other end of the connecting plate 11 is connected to the connecting rod 8. The rotating shaft 12 is located at the center of the track 9.

[0027] The surface of the connecting plate 11 is provided with a notch, in which a spherical joint 13 is movably mounted. A connecting ring is provided at the end of the connecting rod 8 of the first cylinder, and the spherical joint 13 is snapped into the connecting ring. The first cylinder is located on one side of the connecting plate 11. When the first cylinder is working, it will push the connecting plate 11 to rotate around the rotating axis 12, and the connecting rod 8 will rotate around the rotating axis 12 synchronously. The present invention connects the first cylinder and the connecting plate 11 through multiple movable joints, so that the connecting plate 11 can rotate smoothly around the rotating axis 12, thereby driving the connection to rotate smoothly around the rotating axis 12.

[0028] The upper end surface of the reference block 2 is provided with a strip-shaped recess 14 along the standard curved surface 4. The bottom surface of the recess is flush with the top surface of the elastic sheet 5. The power device includes a second cylinder connected to the reference block 2. The second cylinder is activated to push the reference block 2 upward. The upward movement of the reference block 2 can drive the sealing strip 10 fixed to the elastic sheet 5 to separate from the elastic sheet 5. The structural design of the present invention facilitates the removal of the sealing strip 10 after bending.

[0029] The second pressing block 6 vertically presses downwardly on the elastic sheet 5, the strip-shaped recess 14 and the top surface of the first pressing block 3. The structural design of the second pressing block 6 realizes the regularity of the top surface of the sealing strip 10.

[0030] The surface of the first pressing block 3 facing the reference block 2 is a curved surface adapted to the standard curved surface 4. The power device includes a third cylinder connected to the first pressing block 3. The third cylinder drives the first pressing block 3 to move horizontally until it is pressed against the elastic sheet 5 attached to the reference block 2. The first pressing block 3 realizes the press-bending of the sealing strip 10.

[0031] One end of the elastic sheet 5 is further provided with a positioning member 15, which fits the surface of the elastic sheet 5 and is adapted to the structure of the sealing strip 10. The sealing strip 10 structure of the present invention can be well positioned by the positioning member 15, so that the entire press bending is standardized and the finished product precision is improved.

[0032] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] The present invention has been described in detail above. Specific examples have been used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is intended only to facilitate understanding of the present invention and its core concepts. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A bending device for automobile sealing strips, comprising a base plate, a reference block and a first pressing block arranged opposite to the base plate, characterized in that The surface of the reference block opposite to the first pressure block is a standard curved surface, an elastic sheet is provided between the reference block and the pressure block, one end of the elastic sheet is fixed to the base plate, and the other end of the elastic sheet is connected to the power device, the sealing strip is clamped on the elastic sheet along the length direction of the elastic sheet, and the power device drives the elastic sheet to bend and completely fit on the standard curved surface of the reference block, a second pressure block is further provided above the reference block, the first pressure block and the second pressure block are respectively connected to the power device, the power device drives the first pressure block to move horizontally and pressurize the elastic sheet fitted on the standard curved surface, and the power device drives the second pressure block to press vertically downward to act on the elastic sheet and the standard curved surface; The other end of the elastic sheet is connected to a clamping member, and the clamping member is connected to a power device through a connecting rod; one end of the elastic sheet is also provided with a positioning member, and the positioning member is fitted to the surface of the elastic sheet and adapted to the sealing strip structure.

2. The bending device for automobile sealing strip according to claim 1, characterized in that The base plate is provided with a track which is in an arc shape. The connecting rod is located in the track and can only move circumferentially along the track. The moving connecting rod drives the elastic sheet through the clamping member to maintain a flat plate shape or a curved plate shape that completely fits the standard curved surface.

3. The bending device for automobile sealing strip according to claim 2, characterized in that The power device includes a first cylinder. A connecting plate movably connected to the first cylinder is provided at the bottom of the base plate. One end of the connecting plate is connected to a rotating shaft and the other end of the connecting plate is connected to a connecting rod. The rotating shaft is located at the center of the track.

4. The bending device for automobile sealing strip according to claim 3, characterized in that A notch is provided on the surface of the connecting plate, a spherical joint is movably installed in the notch, a connecting ring is provided at the end of the connecting rod of the first cylinder, the spherical joint is clamped in the connecting ring, the first cylinder is located on one side of the connecting plate, and the operation of the first cylinder will push the connecting plate to rotate around the rotating axis, and the connecting rod will rotate around the rotating axis synchronously.

5. The bending device for automobile sealing strip according to claim 1, characterized in that The upper end surface of the reference block is provided with a strip-shaped depression along the standard curved surface, and the bottom surface of the depression is flush with the top surface of the elastic sheet. The power device includes a second cylinder connected to the reference block. When the second cylinder is operated, it will push the reference block upward. The upward-moving reference block can drive the sealing strip clamped on the elastic sheet to detach from the elastic sheet.

6. The bending device for automobile sealing strip according to claim 5, characterized in that The second pressing block vertically presses downward on the elastic sheet, the strip-shaped recess and the top surface of the first pressing block.

7. The bending device for automobile sealing strip according to claim 1, characterized in that The surface of the first pressing block opposite to the reference block is a curved surface adapted to the standard curved surface. The power device includes a third cylinder connected to the first pressing block. The third cylinder drives the first pressing block to move horizontally until it is pressed and fixed on the elastic sheet attached to the reference block.

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