Adjustable automobile rubber pad cutting device

By integrating cylinder drive with gear and rack transmission structure and oblique cutting groove design, the problems of poor adjustability and insufficient stability of automotive rubber pad cutting device are solved, realizing rapid multi-angle cutting and high-precision cutting, improving production efficiency and material utilization.

CN224059988UActive Publication Date: 2026-03-31ANHUI DONGOU MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing automotive rubber mat cutting devices have poor adjustability, cannot quickly adapt to different cutting angles or depths, and lack cutting stability, resulting in low production efficiency and material waste.

Method used

It adopts an integrated cylinder drive and gear and rack transmission structure. The first cylinder pushes the L-shaped plate and rack to move horizontally, which drives the gear to rotate and adjust the cutting angle. Combined with the matching design of the oblique cutting groove and the cutting blade, as well as the synergistic effect of the guide roller and the pad, it can achieve flexible adjustment of the cutting angle and position, ensuring cutting accuracy and material utilization.

Benefits of technology

It enables rapid adjustment of multi-angle cutting, improves production efficiency and cutting accuracy, and avoids material deviation and waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile rubber pad cutting, and particularly relates to an adjustable automobile rubber pad cutting device, which aims at solving the problems of poor adjustability and insufficient cutting stability of the cutting device in the background technology, and adopts the scheme that the adjustable automobile rubber pad cutting device comprises a cutting table, and the outer wall of the top of the cutting table is fixedly connected with a cutting mold through a screw; a supporting frame is welded to the side, located on the cutting mold, of the top outer wall of the cutting table. According to the multi-angle cutting device, flexible adjustment of the cutting angle and position is achieved through a transmission structure integrating air cylinder driving, gears and racks, multi-angle cutting can be completed without replacing a die, adjustment time is shortened, production efficiency is improved, and through the adaptive design of the beveling groove and the cutter and the synergistic effect of the guide roller and the base plate, the production efficiency is improved. The cutting precision and the material utilization rate are greatly improved, the size of the beveling groove is matched with that of the cutter, and it is guaranteed that notches cut every time are neat and consistent in depth.
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Description

Technical Field

[0001] This utility model relates to the field of automotive rubber pad cutting technology, and in particular to an adjustable automotive rubber pad cutting device. Background Technology

[0002] Automotive rubber mats are indispensable auxiliary components in automobile manufacturing and repair, primarily used for shock absorption, anti-slip, sealing, and cushioning. They are typically made of oil-resistant, high-temperature-resistant synthetic rubber, possessing good elasticity and anti-aging properties. In automobiles, rubber mats are widely used in engine compartments, doors, chassis, suspension systems, and other areas, effectively reducing vibration and noise between mechanical parts while preventing liquids or dust from seeping into critical areas. Because different vehicle models and installation locations require different shapes, sizes, and cutting angles for the rubber mats, high-precision cutting equipment is needed for customized production.

[0003] However, existing automotive rubber mats have some shortcomings when cut:

[0004] First, traditional cutting devices rely heavily on fixed molds, offering poor adjustability and failing to quickly adapt to varying cutting angles or depths. For example, cutting angled or irregularly shaped structures requires frequent mold changes, leading to low production efficiency and increased costs. Second, existing equipment lacks stability during the cutting process, with the cutter prone to shifting or vibrating, resulting in uneven cuts and even material waste. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides an adjustable automotive rubber pad cutting device, which overcomes the shortcomings of the prior art and effectively solves the problems of poor adjustability and insufficient cutting stability of the cutting device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable automotive rubber mat cutting device includes a cutting table. A cutting mold is fixedly connected to the top outer wall of the cutting table by screws. A support frame is welded to one side of the top outer wall of the cutting table near the cutting mold. A first cylinder is fixedly connected to one side outer wall of the support frame by screws. An L-shaped plate is fixedly connected to the piston rod of the first cylinder. A rack is fixedly connected to one side outer wall of the L-shaped plate. A gear meshes on the outer wall of the rack. A rotating shaft is installed at the center of the outer wall of the gear. A connecting plate is fixedly connected to the outer wall of the rotating shaft. A second cylinder is fixedly connected to one end outer wall of the connecting plate by screws. A cutter is fixedly connected to the piston rod of the second cylinder.

[0008] Preferably, the rotating shaft is rotatably connected to the outer wall of the support frame, and the gear is located at the top of the connecting plate.

[0009] Preferably, the cutting mold has oblique cutting grooves on both sides of the top outer wall, and the size of the cutting blade is adapted to the size of the oblique cutting grooves.

[0010] Preferably, a guide rod is fixedly connected to the outer wall of one end of the L-shaped plate, and the guide rod is slidably connected to the outer wall of the other side of the support frame. The guide rod and the first cylinder are located on both sides of the support frame, respectively.

[0011] Preferably, a pad is welded to one end of the top outer wall of the cutting table.

[0012] Preferably, the outer wall of the top of the cutting table is rotatably connected with adjacent guide rollers between the pad and the cutting mold, and rubber pads are slidably connected on the outer walls of the pad and the guide rollers, with the rubber pads sliding through the inner wall of the cutting mold.

[0013] Preferably, a control switch is installed on the inclined surface of the outer wall of the top of the cutting table, and the control switch is connected to the first cylinder and the second cylinder via signal lines.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This adjustable automotive rubber mat cutting device, through an integrated cylinder drive and gear / rack transmission structure, achieves flexible adjustment of the cutting angle and position. The first cylinder pushes the L-shaped plate and rack to move horizontally, driving the gear to rotate, and then adjusting the angle between the connecting plate and the cutter via the rotating shaft. This design can complete multi-angle cutting without changing the mold, shortening the adjustment time and improving production efficiency;

[0016] 2. The adjustable automotive rubber mat cutting device designed in this paper significantly improves cutting accuracy and material utilization through the matching design of the beveled groove and the cutter, as well as the synergistic effect of the guide roller and the mat plate. The size of the beveled groove matches the cutter, ensuring that the cut is neat and consistent in depth for each cut; the guide roller guides the rubber mat smoothly into the cutting mold, avoiding deviation or wrinkles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an adjustable automotive rubber mat cutting device proposed in this utility model when the cutter is located in the oblique cutting groove on the left side of the cutting mold;

[0018] Figure 2 This is a schematic diagram of the structure of an adjustable automotive rubber mat cutting device proposed in this utility model when the cutter is located in the oblique cutting groove on the right side of the cutting mold;

[0019] Figure 3 A schematic diagram of the support frame connection structure of the adjustable automotive rubber mat cutting device proposed in this utility model. Figure 1 ;

[0020] Figure 4 A schematic diagram of the support frame connection structure of the adjustable automotive rubber mat cutting device proposed in this utility model. Figure 2 ;

[0021] Figure 5 This is a schematic diagram of the structure of the adjustable automotive rubber pad cutting device proposed in this utility model when the rubber pad is cut and assembled.

[0022] In the diagram: 1. Cutting table; 2. Cutting mold; 3. Support frame; 4. First cylinder; 5. L-shaped plate; 6. Rack; 7. Gear; 8. Rotating shaft; 9. Connecting plate; 10. Second cylinder; 11. Cutting knife; 12. Angled groove; 13. Guide rod; 14. Pad plate; 15. Guide roller; 16. Individual control switch. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-5 Example 1: An adjustable automotive rubber mat cutting device includes a cutting table 1. A cutting mold 2 is fixedly connected to the top outer wall of the cutting table 1 by screws. A support frame 3 is welded to the top outer wall of the cutting table 1 on one side of the cutting mold 2. A first cylinder 4 is fixedly connected to the outer wall of one side of the support frame 3 by screws. An L-shaped plate 5 is fixedly connected to the piston rod of the first cylinder 4. A rack 6 is fixedly connected to the outer wall of one side of the L-shaped plate 5. A gear 7 meshes on the outer wall of the rack 6. A rotating shaft 8 is installed at the center of the outer wall of the gear 7. A connecting plate 9 is fixedly connected to the outer wall of the rotating shaft 8.

[0025] The support frame 3 is vertically welded to one side of the cutting table 1, and the first cylinder 4 is fixed to its outer side by screws. The piston rod of the first cylinder 4 is rigidly connected to the L-shaped plate 5. The horizontal section of the L-shaped plate 5 is fixed to the rack 6, which meshes with the gear 7. A rotating shaft 8 is mounted at the center of the gear 7. The rotating shaft 8 is rotatably connected to the support frame 3 to ensure low resistance when the gear 7 rotates.

[0026] The outer wall of one end of the connecting plate 9 is fixedly connected to the second cylinder 10 by screws, and the piston rod of the second cylinder 10 is fixedly connected to the cutter 11. Both sides of the top outer wall of the cutting mold 2 are provided with oblique cutting grooves 12, and the size of the cutter 11 is adapted to the size of the oblique cutting grooves 12.

[0027] When the first cylinder 4 pushes the rack 6 to move horizontally, the gear 7 drives the rotating shaft 8 to rotate, causing the connecting plate 9 and the cutter 11 to rotate around the axis, achieving stepless adjustment of the cutting angle from 0° to 180°. The guide rod 13 is welded to the end of the L-shaped plate 5 and slides into the guide hole of the support frame 3 to prevent the L-shaped plate 5 from shifting. The groove depth of the oblique cutting groove 12 is consistent with the height of the cutting edge of the cutter 11, ensuring that the rubber pad is completely penetrated during cutting.

[0028] The rotating shaft 8 is rotatably connected to the outer wall of the support frame 3, and the gear 7 is located on the top of the connecting plate 9.

[0029] A guide rod 13 is fixedly connected to the outer wall of one end of the L-shaped plate 5, and the guide rod 13 is slidably connected to the outer wall of the other side of the support frame 3. The guide rod 13 and the first cylinder 4 are located on both sides of the support frame 3 respectively.

[0030] A pad 14 is welded to one end of the top outer wall of the cutting table 1. Adjacent guide rollers 15 are rotatably connected between the pad 14 and the cutting mold 2 on the top outer wall of the cutting table 1. Rubber pads are slidably connected on the outer walls of the pad 14 and the guide rollers 15. The rubber pads slide through the inner wall of the cutting mold 2.

[0031] The pad 14 is welded to one end of the cutting table 1 to fix the initial position of the rubber pad. The guide roller 15 is rotatably connected to the top of the cutting table 1 and is located between the pad 14 and the cutting mold 2. The rubber pad is guided from the pad 14 into the cutting mold 2 through the guide roller 15 to achieve automatic centering and smooth conveying.

[0032] A control switch 16 is installed on the inclined surface of the top outer wall of the cutting table 1, and the control switch 16 is connected to the first cylinder 4 and the second cylinder 10 via signal lines.

[0033] The control switch 16 is installed on the inclined surface of the cutting table 1 and can be equipped with a built-in PLC controller. It is connected to the first cylinder 4 and the second cylinder 10 via signal lines. The operator can select preset cutting parameters through the touch interface or manually input angle and depth commands to realize the automated cutting process.

[0034] Working principle:

[0035] Material positioning: Lay the rubber pad flat on the pad plate 14, and push its front end toward the guide roller 15 manually or with the help of a robotic arm. The guide roller 15 rotates, causing the rubber pad to slide forward until it is fully in the predetermined position of the cutting mold 2.

[0036] Angle Adjustment: The operator inputs the target cutting angle via the sub-control switch 16, activating the first cylinder 4 and pushing the L-shaped plate 5 and rack 6 to move horizontally. The rack 6 drives the gear 7 to rotate, causing the rotating shaft 8 and connecting plate 9 to rotate, thus adjusting the cutter 11 to the set angle. The guide rod 13 slides within the guide hole of the support frame 3, ensuring the straightness of the L-shaped plate 5's movement trajectory.

[0037] Cutting execution: After the angle adjustment is completed, the sub-control switch 16 triggers the second cylinder 10 to operate. The piston rod of the second cylinder 10 pushes the cutter 11 through the rubber pad and into the oblique cutting groove 12, completing a one-time cut. After the cut is completed, the second cylinder 10 resets, and the cutter 11 retracts to its initial height.

[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. An adjustable cutting device for automobile rubber mats, comprising a cutting table (1), characterized in that, The outer wall of the top of the cutting table (1) is fixedly connected with a cutting die (2) through screws, and a support frame (3) is welded on one side of the cutting die (2) on the outer wall of the top of the cutting table (1). A first air cylinder (4) is fixedly connected on one side of the outer wall of the support frame (3) through screws, and an L-shaped plate (5) is fixedly connected on the piston rod of the first air cylinder (4). A rack (6) is fixedly connected on one side of the outer wall of the L-shaped plate (5), and a gear (7) is engaged on the outer wall of the rack (6). A rotating shaft (8) is installed on the outer wall center of the gear (7), and a connecting plate (9) is fixedly connected on the outer wall of the rotating shaft (8). A second air cylinder (10) is fixedly connected on one end of the outer wall of the connecting plate (9) through screws, and a cutter (11) is fixedly connected on the piston rod of the second air cylinder (10).

2. The adjustable cutting device for automobile rubber mats according to claim 1, characterized in that, The rotating shaft (8) is rotatably connected on the outer wall of the support frame (3), and the gear (7) is located on the top of the connecting plate (9).

3. The adjustable cutting device for automobile rubber mats according to claim 1, wherein, The outer wall of the top of the cutting die (2) is provided with an inclined slot (12) on both sides, and the size of the cutter (11) is matched with the size of the inclined slot (12).

4. The adjustable cutting device for automobile rubber mats according to claim 1, wherein, One end of the outer wall of the L-shaped plate (5) is fixedly connected with a guide rod (13), and the guide rod (13) is slidably connected on the other side of the outer wall of the support frame (3). The guide rod (13) and the first air cylinder (4) are respectively located on both sides of the support frame (3).

5. The adjustable cutting device for automobile rubber mats according to claim 1, wherein, One end of the outer wall of the top of the cutting table (1) is welded with a backing plate (14).

6. The adjustable cutting device for automobile rubber mats according to claim 1, wherein, The outer wall of the cutting table (1) is rotatably connected with adjacent guide rollers (15) between the backing plate (14) and the cutting die (2) on the top, and rubber pads are slidably connected on the outer walls of the backing plate (14) and the guide rollers (15), and the rubber pads are slidably connected on the inner wall of the cutting die (2).

7. The adjustable cutting device for automobile rubber mats according to claim 1, wherein, The inclined surface of the outer wall of the top of the cutting table (1) is provided with a sub-control switch (16), and the sub-control switch (16) is connected between the first air cylinder (4) and the second air cylinder (10) through signal lines.