Cutting device for processing automobile seat leather

Abstract

This utility model relates to a cutting device for processing automotive seat leather. It is characterized by comprising a machine base, a first horizontally arranged slide table above the machine base, and second slide tables on both sides of the machine base. A drive motor is connected to the first slide table, and a rotating shaft is connected to the output end of the drive motor. The rotating shaft is connected to a mounting base, and a cutting blade is connected below the mounting base. Liftable flattening rollers are provided on both sides of the cutting blade. The flattening rollers are used to flatten the leather laid on the machine base. The first slide table is connected to the second slide tables on both sides. The movement trajectories of the first and second slide tables are located on the same plane and perpendicular to each other, so as to drive the cutting blade to move laterally and longitudinally respectively. An alternating switching device is provided on the mounting base, which is used to drive the flattening rollers on both sides to contact the machine base respectively. This utility model has the following advantages and effects: it can pre-flatten the leather while reducing the resistance encountered by the cutting blade during cutting.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat leather processing technology, specifically to a cutting device for automotive seat leather processing. Background Technology

[0002] Car seats mainly consist of a frame and a leather cover covering the frame. Additionally, depending on the level of luxury in the interior, different levels of control components may be included. The leather cover is primarily made from leather through processes such as cutting, punching, stitching, and printing.

[0003] For example, Chinese patent document CN222007835U discloses a high-efficiency cutting device for cutting leather bags, including a cutting table, an electric slide rod slidably connected to the upper surface of the cutting table, a cutter slidably connected to one side surface of the electric slide rod, a flattening mechanism provided on one side surface of the cutter, and a protective mechanism provided on one side surface of the cutter.

[0004] In the above technical solution, before the cutting knife cuts the leather, the pressing block in the flattening mechanism can pre-press the cutting position of the leather, thereby making the subsequent cutting process more efficient.

[0005] However, in actual use, it was found that the clamping block applies pressure perpendicular to the cutting table through the spring to clamp the leather laid on the cutting table. Since the clamping block is always in contact with the cutting table, when the electric slide rod moves the cutting knife, the pressure applied to the clamping block will generate a lot of friction due to the relative movement between the clamping block and the cutting table, which will cause the cutting knife to move less smoothly and quickly. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cutting device for processing automotive seat leather, which can pre-press the leather while reducing the resistance encountered by the cutting blades during cutting.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for processing automotive seat leather, comprising a machine base, a first horizontally arranged slide table above the machine base, and second horizontally arranged slide tables on both sides of the machine base. A drive motor is connected to the middle section of the first slide table, and a rotating shaft is connected to the output end of the drive motor. A mounting base is connected to the rotating shaft, and a cutting blade is connected below the mounting base. Liftable flattening rollers are provided on both sides of the cutting blade, which are used to flatten the leather laid on the machine base. The first slide table is connected to the second slide tables on both sides, and the movement trajectory of the first slide table and the movement trajectory of the second slide table are perpendicular to each other in the same plane, so as to drive the cutting blade to move laterally and longitudinally respectively. An alternating switching device is provided on the mounting base, which is used to drive the flattening rollers on both sides to contact the machine base respectively.

[0008] The present invention is further configured such that: a mounting frame is provided below the mounting base, both ends of the flattening roller are rotatably connected to the mounting frame, a connecting rod extending upward is fixed at the top of the mounting frame, the mounting base is provided with a through guide hole, a sleeve rod is embedded in the guide hole, a mounting groove is provided in the sleeve rod, the sleeve rod is fitted onto the connecting rod through the mounting groove, a spring for applying pressure to the flattening roller is provided in the mounting groove, one end of the spring is fixed to the bottom of the mounting groove, and the other end is fixed to the connecting rod.

[0009] The present invention is further configured such that: the alternating switching device includes a rotary cylinder mounted on the mounting base, the output end of the rotary cylinder is fixed with a connecting arm, the top of the sleeve rod is provided with a connecting flange, the connecting flange is rotatably connected to the connecting arm, and the rotary cylinder drives the connecting arm to rotate, so as to drive the sleeve rods on both sides to rise and fall alternately.

[0010] The present invention is further configured such that the rotary cylinder is a self-locking rotary cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] Because rolling flattening rollers are installed on both sides of the cutting blade, the leather is flattened instead of pressed by the pressing block. This replaces the sliding friction generated during flattening with rolling friction when the first and second slides move the cutting blade. This reduces the friction experienced by the cutting blade during cutting. Furthermore, the flattening of the leather is primarily achieved by the flattening roller located at the front end of the cutting blade's movement direction. An alternating switching device ensures that the flattening rollers on both sides contact the machine platform, even when the flattening roller at the rear end of the cutting blade's movement direction is away from the machine platform. This ensures that the leather is pre-flattened while preventing the pressure exerted by the rear flattening roller on the machine platform from creating resistance during the cutting blade's movement. This further reduces the resistance experienced by the cutting blade during movement. Therefore, this effectively solves the technical problem in existing technologies where the flattening structure results in significant resistance during the cutting blade's movement, thus ensuring smoother and faster movement of the cutting blade. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure between the alternating switching device and the mounting base in this utility model;

[0015] Figure 3 This is a schematic cross-sectional view of the connection between the alternating switching device and the mounting base in this utility model. Detailed Implementation

[0016] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the 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.

[0018] like Figures 1 to 3As shown, this utility model discloses a cutting device for processing automotive seat leather, including a machine base 1, a first horizontally arranged slide 2 above the machine base 1, and second horizontally arranged slides 3 on both sides of the machine base 1. A drive motor 4 is connected to the middle section of the first slide 2, and a rotating shaft 5 is connected to the output end of the drive motor 4. A mounting base 6 is fixed to the bottom end of the rotating shaft 5, and a cutting blade 7 is installed below the mounting base 6. Flattening rollers 8 are symmetrically arranged on both sides of the cutting blade 7 and can be raised and lowered. The flattening rollers 8 are used to flatten the leather laid on the machine base 1. The first slide 2 is connected to the second slides 3 on both sides. The movement trajectory of the first slide 2 and the second slide 3 are perpendicular to each other on the same plane. Thus, the movement of the first slide 2 and the second slide 3 drives the cutting blade 7 to move in different directions. The drive motor 4 drives the mounting base 6 to rotate via the drive shaft 5, allowing the rolling direction of the flattening roller 8 to match the movement direction of the first slide 2 and the second slide 3. Therefore, when the cutting blade 7 performs transverse or longitudinal cutting, the flattening roller 8 can flatten the leather. The first slide 2 and the second slide 3 can both use existing structures, such as moving via ball screws or linear motors.

[0019] The connection structure between the flattening roller 8 and the mounting base 6 is as follows: a mounting frame 10 is provided below the mounting base 6, and both ends of the flattening roller 8 are rotatably connected to the mounting frame 10. In this way, when the first slide table 2 and the second slide table 3 drive the cutting blade 7 to move, the sliding friction generated during flattening can be replaced by rolling friction, thereby reducing the friction force experienced by the cutting blade 7 during cutting. A connecting rod 11 is fixed to the top of the mounting frame 10. The connecting rod 11 extends upward into the guide hole of the mounting base 6. A sleeve rod 12 is embedded in the guide hole. The sleeve rod 12 has a mounting groove 121 inside to accommodate the connecting rod 11. A spring 13 is installed in the mounting groove 121. One end of the spring 13 is fixed to the bottom of the mounting groove 121, and the other end is fixed to the top of the connecting rod 11, so that the flattening roller 8 always has downward elastic pressure to flatten the leather.

[0020] Furthermore, to reduce the friction between the flattening rollers 8 and the machine base 1 caused by the positive pressure generated when the first slide 2 or the second slide 3 moves the cutting blades 7, an alternating switching device is provided on the mounting base 6. This alternating switching device includes a rotary cylinder 91 mounted above the mounting base 6, with a connecting arm 92 mounted on the output end of the rotary cylinder 91. A connecting flange 93 is provided on the top of the sleeve rod 12 and is hinged to the connecting arm 92 by a pin. When the rotary cylinder 91 drives the connecting arm 92 to rotate, the two ends of the connecting arm 92 can move away from the mounting base 6 and closer to the mounting base 6, respectively, thus driving the flattening rollers 8 on both sides to rise and fall respectively. Since the flattening of the leather is mainly achieved by the flattening roller 8 located at the front end of the cutting blade 7 in the moving direction, the alternating switching device can drive the flattening rollers 8 on both sides to contact the machine base 1 respectively. Even if the flattening roller 8 located at the rear end of the cutting blade 7 in the moving direction is far away from the machine base 1, for example, when the cutting blade 7 is moved laterally to the left by the first slide 2, the flattening roller 8 on the front side in the moving direction is pressed down and the rear side is raised. This ensures that the leather is pre-flattened while avoiding the pressure applied by the rear flattening roller 8 to the machine base 1, which would provide resistance to the movement of the cutting blade 7, thereby further reducing the resistance encountered by the cutting blade 7 in the moving direction.

[0021] In addition, it should be noted that in this solution, the rotary cylinder 91 is preferably a rotary cylinder 91 with a self-locking function, such as using a pneumatic brake for self-locking, so as to avoid the rotary cylinder 91 being affected by external forces and causing the connecting arm 92 to rotate incorrectly.

[0022] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A cutting device for processing automotive seat leather, characterized in that, The machine includes a machine base, a first horizontally arranged slide table above the machine base, and second horizontally arranged slide tables on both sides of the machine base. A drive motor is connected to the middle section of the first slide table, and a rotating shaft is connected to the output end of the drive motor. A mounting base is connected to the rotating shaft, and a cutting blade is connected to the bottom of the mounting base. Liftable flattening rollers are provided on both sides of the cutting blade. The flattening rollers are used to flatten the leather laid on the machine base. The first slide table is connected to the second slide tables on both sides. The movement trajectory of the first slide table and the movement trajectory of the second slide table are located in the same plane and perpendicular to each other, so as to drive the cutting blade to move laterally and longitudinally, respectively. An alternating switching device is provided on the mounting base, which is used to drive the flattening rollers on both sides to contact the machine base.

2. The cutting equipment for processing automotive seat leather according to claim 1, characterized in that, A mounting frame is provided below the mounting base. The two ends of the flattening roller are rotatably connected to the mounting frame. An upwardly extending connecting rod is fixed to the top of the mounting frame. The mounting base is provided with a through guide hole. A sleeve rod is embedded in the guide hole. The sleeve rod is provided with a mounting groove. The sleeve rod is fitted onto the connecting rod through the mounting groove. A spring is provided in the mounting groove to apply pressure to the flattening roller. One end of the spring is fixed to the bottom of the mounting groove, and the other end is fixed to the connecting rod.

3. The cutting equipment for processing automotive seat leather according to claim 2, characterized in that, The alternating switching device includes a rotary cylinder mounted on the mounting base. The output end of the rotary cylinder is fixed with a connecting arm. The top of the sleeve is provided with a connecting flange. The connecting flange is rotatably connected to the connecting arm. The rotary cylinder drives the connecting arm to rotate, thereby causing the sleeves on both sides to rise and fall alternately.

4. The cutting equipment for processing automotive seat leather according to claim 3, characterized in that, The rotary cylinder is a self-locking rotary cylinder.

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