Automobile sealing strip machining and cutting device
By incorporating a cutting cylinder and a flattening assembly into the cutting device, the problem of bending and curling of the sealing strip during the cutting process is solved, achieving straight cutting of the sealing strip and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202422942788.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing automotive sealing strip cutting devices often result in the sealing strip bending and curling upwards during cutting, leading to skewed cut surfaces, which affects production efficiency and increases scrap rate.
A cutting blade is set at the output end of the cutting cylinder, and a flattening assembly is installed above it, including a bidirectional screw, rubber wheel and flattening motor, to pre-fix and flatten the sealing strip before cutting, so as to ensure that the sealing strip remains straight during the cutting process.
It improves the stability and precision of cutting, ensures that the cut surface meets high standards, and reduces scrap rate and manufacturing costs.
Smart Images

Figure CN223918033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts processing technology, and in particular to an automotive sealing strip processing and cutting device. Background Technology
[0002] Automotive sealing strips are key components of automobiles, mainly used in doors, windows, body, seats, sunroofs, engine compartments, and trunks. They have functions such as waterproofing, sealing, sound insulation, dustproofing, antifreeze, shock absorption, heat insulation, and energy saving. They possess high tensile strength, good elasticity, temperature resistance, and aging resistance. Their cross-sectional structural dimensions are matched with the profile to ensure sealing effect.
[0003] In existing technologies, the sealing strip placed at the cutting station is prone to bending and curling during the cutting process, which results in a skewed cut surface that fails to meet requirements. This not only affects production efficiency but also increases scrap rate and manufacturing costs. Summary of the Invention
[0004] The purpose of this invention is to solve the problem that in the prior art, when the cutting device is used to cut, the sealing strip placed at the cutting station is prone to bending and curling up, which will result in a skewed cut surface that does not meet the requirements. This not only affects production efficiency but also increases scrap rate and manufacturing cost. Therefore, this invention proposes a cutting device for processing automotive sealing strips.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A cutting device for processing automotive sealing strips includes a worktable, a U-shaped frame fixedly mounted on the top of the worktable, a cutting cylinder fixedly mounted at the center of the top of the U-shaped frame, a cutting blade fixedly mounted at the output end of the cutting cylinder, an clearance groove provided on the worktable directly below the cutting blade, a center block fixedly mounted on the outer wall above the cutting blade at the end of the output end of the cutting cylinder, a transverse frame fixedly mounted on the side of the center block, and a flattening component mounted on the transverse frame to spread the sealing strip flat when it is being cut.
[0007] Optionally, the flattening assembly includes a bidirectional screw, a rubber wheel, an extension plate, and a transverse block. A flattening motor is fixedly installed on the side of the transverse frame, and a bidirectional screw is fixedly installed at the output end of the flattening motor. The outer wall of the bidirectional screw is symmetrically provided with external threads in opposite directions along the longitudinal centerline of the transverse frame.
[0008] Optionally, both ends of the outer wall of the bidirectional screw are threaded with transverse blocks, and an extension plate is fixedly installed on the top of the transverse blocks. A vertical column is inserted into the end of the extension plate in the vertical direction.
[0009] Optionally, a mounting shoulder is fixedly provided on the outer wall of the vertical column, the top of the mounting shoulder is fixedly connected to one end of the vertical spring, the other end of the vertical spring is fixedly connected to the bottom surface of the extension plate, and a rubber wheel is rotatably connected to the bottom of the vertical column.
[0010] Optionally, the transverse block and the inner cavity of the transverse frame are of the same width, and the surface of the transverse block and the inner wall of the transverse frame are both made into smooth surfaces.
[0011] Optionally, the vertical axis of the vertical column, the vertical axis of the output end of the cutting cylinder, and the vertical center line of the cutting blade are in the same plane.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] 1. This utility model is equipped with a cutting cylinder, and a cutting blade is provided at the output end of the cutting cylinder. A flattening component is provided above the cutting blade at the output end of the cutting cylinder. The flattening component can pre-fix the sealing strip before cutting. This not only effectively prevents the sealing strip from moving or shifting during the cutting process, but also greatly improves the stability of the cutting. On the other hand, it can flatten the sealing strip to be cut, ensuring that the sealing strip remains straight during the cutting process, thereby avoiding the occurrence of skewed cutting surfaces, so that the cut sealing strip can meet the high standard requirements of product for dimensional accuracy and appearance quality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a structural diagram of the flattening component and its connectors.
[0016] Figure 3 This is a structural diagram of the flattening component.
[0017] In the diagram: 1. Cutting cylinder; 2. Cutting blade; 3. U-shaped frame; 4. Workbench; 41. Clearance groove; 5. Flattening motor; 51. Bidirectional screw; 6. Horizontal movement frame; 7. Center block; 8. Horizontal movement block; 9. Extension plate; 10. Vertical spring; 11. Mounting shoulder; 12. Vertical column; 13. Rubber wheel. Detailed Implementation
[0018] 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.
[0019] 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.
[0020] Reference Figure 1-3 A cutting device for processing automotive sealing strips includes a workbench 4, a U-shaped frame 3 fixedly mounted on the top of the workbench 4, a cutting cylinder 1 fixedly mounted at the center of the top of the U-shaped frame 3, a cutting blade 2 fixedly mounted at the output end of the cutting cylinder 1, and an avoidance groove 41 provided on the workbench 4 directly below the cutting blade 2 to provide a path for the vertical displacement of the cutting blade 2.
[0021] A center block 7 is fixedly installed on the outer wall above the cutting blade 2 at the output end of the cutting cylinder 1. A transverse frame 6 is fixedly installed on the side of the center block 7. A flattening component is installed on the transverse frame 6 to flatten the sealing strip when it is cut. The flattening component includes a bidirectional screw 51, a rubber wheel 13, an extension plate 9, and a transverse block 8. A flattening motor 5 is fixedly installed on the side of the transverse frame 6. A bidirectional screw 51 is fixedly installed at the output end of the flattening motor 5.
[0022] The outer wall of the bidirectional screw 51 is symmetrically provided with external threads of opposite directions along the longitudinal centerline of the transverse frame 6. Both ends of the outer wall of the bidirectional screw 51 are threaded into transverse blocks 8. An extension plate 9 is fixedly installed on the top of the transverse block 8. A vertical column 12 is inserted vertically into the end of the extension plate 9. An installation shoulder 11 is fixedly installed on the outer wall of the vertical column 12. The top of the installation shoulder 11 is fixedly connected to one end of the vertical spring 10. The other end of the vertical spring 10 is fixedly connected to the bottom surface of the extension plate 9. A rubber wheel 13 is rotatably connected to the bottom of the vertical column 12. The transverse block 8 is the same width as the inner cavity of the transverse frame 6. The surface of the transverse block 8 and the inner wall of the transverse frame 6 are both made into smooth surfaces. The vertical axis of the vertical column 12, the vertical axis of the output end of the cutting cylinder 1, and the vertical centerline of the cutting blade 2 are in the same plane. The extension plate 9 places the vertical axis of the vertical column 12, the vertical axis of the output end of the cutting cylinder 1, and the vertical centerline of the cutting blade 2 in the same plane.
[0023] The specific implementation steps and principles of this utility model are as follows:
[0024] In the initial state, the cutting cylinder 1 is in the retracted state, and the distance between the two rubber wheels 13 is small. The worker places the sealing strip to be cut at an appropriate position on the top of the clearance groove 41, starts the cutting cylinder 1, and as the cutting cylinder 1 extends and drives the cutting blade 2 to approach the top of the sealing strip, the two rubber wheels 13 will first contact the top of the sealing strip and compress the vertical spring 10. Finally, the flattening motor 5 is started, and the flattening motor 5 drives the two rubber wheels 13 to move away from each other through the bidirectional screw 51, flattening the sealing strip. Finally, the cutting blade 2 completes the cutting of the sealing strip.
[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A cutting device for processing of a car weather strip, comprising a worktable (4), characterized in that, The top of the workbench (4) is fixedly provided with a U-shaped frame (3), the top center of the U-shaped frame (3) is fixedly provided with a cutting cylinder (1), the output end of the cutting cylinder (1) is fixedly provided with a cutting blade (2), the workbench (4) is provided with an avoiding groove (41) below the cutting blade (2), the output end of the cutting cylinder (1) is fixedly provided with a center block (7) above the outer wall of the cutting blade (2), the side of the center block (7) is fixedly provided with a transverse frame (6), and the transverse frame (6) is provided with a flattening assembly for flattening the sealing strip when the sealing strip is cut.
2. The device for processing and cutting of a sealing strip for a vehicle according to claim 1, characterized in that, The flattening assembly comprises a bidirectional screw rod (51), a rubber wheel (13), an extension plate (9) and a transverse block (8), the side of the transverse frame (6) is fixedly provided with a flattening motor (5), the output end of the flattening motor (5) is fixedly provided with the bidirectional screw rod (51), and the outer wall of the bidirectional screw rod (51) is symmetrically provided with external threads with opposite rotation directions on the longitudinal center line of the transverse frame (6).
3. The device according to claim 2, wherein, The outer wall of the bidirectional screw rod (51) is screwed into the transverse block (8) at both ends, the top of the transverse block (8) is fixedly provided with the extension plate (9), and the end of the extension plate (9) is vertically movably inserted into a vertical column (12).
4. The device according to claim 3, wherein, The outer wall of the vertical column (12) is fixedly provided with a mounting shoulder (11), the top of the mounting shoulder (11) is fixedly connected with one end of a vertical spring (10), the other end of the vertical spring (10) is fixedly connected to the bottom surface of the extension plate (9), and the bottom of the vertical column (12) is rotatably connected with the rubber wheel (13).
5. The apparatus for processing and cutting of a weather strip for a vehicle according to claim 3, wherein The transverse block (8) and the inner cavity of the transverse frame (6) are equal in width, and the surface of the transverse block (8) and the inner wall of the transverse frame (6) are both smooth surfaces.
6. The apparatus for processing and cutting of a weather strip for a vehicle according to claim 3, wherein The vertical axis of the vertical column (12), the vertical axis of the output end of the cutting cylinder (1) and the vertical center line of the cutting blade (2) are in the same plane.