An efficient cutting device for warp knitted fabric processing

Abstract

The utility model relates to an efficient cutting device for warp knitted fabric processing. It includes two clamping rollers that fit each other; a fabric support plate, which is arranged at the rear side of the clamping roller and is arranged horizontally; a lifting plate, which is arranged at the rear side of the fabric support plate; a cutting assembly, which is arranged at the upper side of the lifting plate, including a fixed frame, a lower pressure plate that is lifted and lowered relative to the fixed frame, a front pressure plate arranged at the bottom of the lower pressure plate, a cutting knife slide rail arranged at the bottom of the lower pressure plate, a rear pressure plate arranged at the bottom of the lower pressure plate, and a roller cutter module slidably arranged on the cutting knife slide rail; a cloth pulling assembly, which includes two servo slide rails distributed horizontally in the front and rear directions, a mobile frame driven by the two servo slide rails to translate forward and backward, and a cloth clamping mechanism arranged on the mobile frame. The main difference between the utility model and the existing cutting equipment is that the cloth pulling assembly is used to pull and feed the fabric, and the actual feeding speed is much greater than the feeding speed of conventional cutting equipment, and it has high cutting efficiency.

Description

Technical Field

[0001] The utility model relates to a cutting device, in particular to a high-efficiency cutting device used for processing warp knitted fabrics. Background Art

[0002] The characteristics of warp knitted fabrics can be summarized as follows: good dimensional stability. Warp knitted fabrics have the characteristics of good longitudinal dimensional stability, which makes the fabric not easy to deform and is suitable for making clothing and household items that need to maintain shape and size; the fabric is crisp. Due to the special weaving process of warp knitted fabrics, the fabric is crisp, has low shedding and will not curl, which increases the practicality and aesthetics of the fabric; good anti-shedding properties. Warp knitted fabrics can utilize different tissues to reduce the shedding of coils caused by broken yarn and holes, which makes warp knitted fabrics excellent in durability and stability; diversity of textures and patterns. Warp knitted fabrics use different weaving techniques to produce fabrics with various textures and patterns, such as twill, plain weave, herringbone, etc., which increases the diversity and aesthetics of the fabric; easy to wash and maintain, etc.

[0003] The structure of the existing fabric cutting equipment is generally composed of a fabric conveying component, a conveyor belt and a cutting module, wherein the fabric conveying component conveys the fabric to the conveyor belt and moves synchronously with the conveyor belt, and the cutting module can cut the fabric on the conveyor belt. Common cutting modules include circular knife cutting modules and laser cutting modules, wherein the laser cutting module is prone to form a burnt edge at the cutting edge, affecting the quality of the fabric. At the same time, in order to ensure the dimensional accuracy of the fabric cutting, the moving speed of the conveyor belt is relatively slow to ensure that the fabric and the conveyor belt do not produce relative displacement, which will affect the efficiency of fabric cutting. The existing fabric cutting equipment takes into account the problem that the fabric is easy to deform when it is in a tensile state, so the above-mentioned cutting method is adopted. However, warp knitted fabrics have the characteristics of good longitudinal dimensional stability, so they are less deformed when they are in longitudinal tension. Therefore, based on this characteristic, the cutting equipment suitable for warp knitted fabrics can be redesigned to improve the cutting efficiency. Summary of the invention

[0004] The utility model provides a high-efficiency cutting device for warp knitted fabric processing, which solves the problem of low cutting efficiency of fabric cutting devices in the prior art.

[0005] The above technical problems of the utility model are mainly solved by the following technical solutions: an efficient cutting device for warp knitted fabric processing, suitable for warp knitted fabrics, characterized in that: it comprises two clamping rollers that fit each other, the clamping rollers are horizontal unpowered rollers and are provided with a brake mechanism;

[0006] The fabric supporting plate is arranged at the rear side of the clamping roller and is arranged horizontally;

[0007] A lifting plate is arranged at the rear side of the fabric supporting plate, and can be raised to the same height as the fabric supporting plate;

[0008] A cutting assembly is arranged on the upper side of the lifting plate, comprising a fixing frame, a lower pressing plate arranged to be lifted relative to the fixing frame, a front pressing plate arranged at the bottom of the lower pressing plate, a cutting knife slide rail arranged at the bottom of the lower pressing plate, a rear pressing plate arranged at the bottom of the lower pressing plate, and a roller cutter module slidably arranged on the cutting knife slide rail;

[0009] The cloth pulling assembly includes two servo slide rails horizontally distributed in the front-to-back direction, a movable frame driven by the two servo slide rails to translate forward and backward, and a cloth clamping mechanism arranged on the movable frame, wherein the clamping height of the cloth clamping mechanism is adapted to the height of the fabric supporting plate.

[0010] The working principle of the utility model is as follows: the warp knitted fabric with cutting passes through between two clamping rollers and is laid flat on the fabric supporting plate. When the lifting plate descends, part of the fabric will extend from the rear side of the fabric supporting plate, and the movable frame on the cloth pulling assembly will move to the front end under the action of the servo slide rail, and the cloth clamping mechanism will complete the clamping and fixing of the fabric, and then the movable frame will move backward a fixed distance under the action of the servo slide rail. When the movable frame moves, the brake mechanism will release the brake state, and when the movable frame stops, the brake mechanism is in the brake state, and then the lifting plate rises to be flush with the fabric supporting plate, and the lower pressure plate on the cutting assembly will start to descend, so that the front pressure plate and the rear pressure plate are pressed on the fabric, and the roller module moves along the cutting knife slide rail to complete the cutting of the fabric, and then the lower pressure plate is reset upward, and at the same time the cloth clamping mechanism releases the fabric, and after the fabric falls, the next cutting action can be performed. The main difference between the utility model and the existing cutting equipment is that the fabric is pulled and fed by a cloth pulling component, and the actual moving speed of the fabric is much greater than the feeding speed of the conventional cutting equipment. At the same time, during the cutting process, the cutting part has a front pressure plate and a rear pressure plate pressing on the fabric to ensure that the fabric will not move during the cutting process and ensure that the cutting is straight.

[0011] Furthermore, the utility model also includes a horizontally arranged conveyor belt, the conveyor belt is located between the two servo slide rails, and the upper surface height of the conveyor belt is lower than the motion track of the cloth clamping mechanism. In this way, the cut fabric will directly fall onto the conveyor belt and be output outward with it.

[0012] Furthermore, a negative pressure cavity is provided at the bottom of the fabric support plate, the negative pressure cavity is connected to the negative pressure device, and an adsorption hole connected to the negative pressure cavity is provided on the fabric support plate. When the fabric is cut, the fabric on the fabric support plate is fixed on the fabric support plate by the adsorption effect of the adsorption hole before waiting to be grabbed by the fabric clamping mechanism again, so as to avoid movement or rolling.

[0013] Therefore, compared with the prior art, the utility model has the following characteristics: 1. The main difference between the utility model and the existing cutting equipment is that the cloth pulling component is used to pull and feed the fabric, and the feeding accuracy of the fabric is determined by the servo slide rail. Therefore, there is no need to consider the influence of the fabric movement speed on the feeding accuracy. The actual movement speed is much greater than the feeding speed of the conventional cutting equipment, and it has high cutting efficiency; 2. During the cutting process, the front pressure plate and the rear pressure plate are pressed on the fabric at the cutting part to ensure that the fabric will not move during the cutting process and ensure that the cutting part is straight. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0015] Attached Figure 2 is a schematic diagram of the structure of the cutting assembly;

[0016] Attached Figure 3 It is a structural schematic diagram of the cloth clamping mechanism;

[0017] Attached Figure 4 It is a top view of the cloth pulling assembly and conveyor belt. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] Example 1: See Figure 1 , an efficient cutting device for warp knitted fabric processing, comprising two clamping rollers 100 that fit each other, the clamping rollers being horizontal unpowered rollers and provided with a brake mechanism;

[0021] The fabric support plate 200 is arranged at the rear side of the clamping roller and is arranged horizontally;

[0022] The lifting plate 300 is arranged at the rear side of the fabric supporting plate, and can be raised to the same height as the fabric supporting plate. A cylinder 310 is arranged at the bottom of the lifting plate to drive the lifting plate;

[0023] See Figure 2The cutting assembly 400 is arranged on the upper side of the lifting plate, including a fixed frame 410, a first servo electric cylinder 420 vertically arranged on the fixed frame, a lower pressure plate 430 lifted and lowered relative to the fixed frame, a front pressure plate 440 arranged at the bottom of the lower pressure plate, a cutting knife slide rail 450 arranged at the bottom of the lower pressure plate, a rear pressure plate 460 arranged at the bottom of the lower pressure plate, and a roller cutter module 470 slidably arranged on the cutting knife slide rail, at least two guide rods 480 are fixed on the upper side of the front pressure plate and the rear pressure plate, the guide rods are vertically slidably assembled with the lower pressure plate, and a return spring 490 is connected between the two pressure plates and the lower pressure plate;

[0024] See Figure 1 and Figure 3 The cloth pulling assembly 500 includes two servo slide rails 510 horizontally distributed in the front-to-back direction, a moving frame 520 driven by the two servo slide rails to move forward and backward, and a cloth clamping mechanism 530 disposed on the moving frame, wherein the clamping height of the cloth clamping mechanism is adapted to the height of the fabric supporting plate;

[0025] The cloth clamping mechanism includes a scissors-type clamping mechanism and a second servo electric cylinder 531 that drives it to open and close. The scissors-type clamping mechanism includes a first clamping rod 532, a second clamping rod 533, a first connecting rod 534, a second connecting rod 535, a third connecting rod 536, a fourth connecting rod 537, a first fixed shaft 538, a second fixed shaft 539, a first movable shaft 540 and a second movable shaft 541. The telescopic rod of the servo electric cylinder is connected to the second movable shaft.

[0026] The working principle of this embodiment is as follows: the warp knitted fabric with cutting passes through between two clamping rollers and is laid flat on the fabric support plate. When the lifting plate descends, part of the fabric will extend from the rear side of the fabric support plate. The movable frame on the cloth pulling assembly will move to the front end under the action of the servo slide rail, and the cloth clamping mechanism will complete the clamping and fixing of the fabric. Then the movable frame will move backward a fixed distance under the action of the servo slide rail. When the movable frame moves, the brake mechanism will release the brake state. When the movable frame stops, the brake mechanism is in the brake state. Then the lifting plate rises to be flush with the fabric support plate, and the lower pressure plate on the cutting assembly will start to descend, so that the front pressure plate and the rear pressure plate are pressed on the fabric. The roller module moves along the cutting knife slide rail to complete the cutting of the fabric. Then the lower pressure plate is reset upward, and the cloth clamping mechanism releases the fabric at the same time. After the fabric falls, the next cutting action can be performed. The main difference between this embodiment and the existing cutting equipment is that a cloth pulling component is used to pull and feed the fabric, and the actual moving speed of the fabric is much greater than the feeding speed of the conventional cutting equipment. At the same time, during the cutting process, the cutting part has a front pressure plate and a rear pressure plate pressing on the fabric to ensure that the fabric will not move during the cutting process and ensure that the cutting is straight.

[0027] See Figure 1 and Figure 4The present embodiment also includes a horizontally arranged conveyor belt 600, which is located between two servo slide rails, and the upper surface height of the conveyor belt is lower than the motion track of the cloth clamping mechanism. In this way, the cut fabric will directly fall onto the conveyor belt and be output outward with it.

[0028] See Figure 1 A negative pressure chamber 210 is provided at the bottom of the fabric support plate, and the negative pressure chamber is connected to the negative pressure device. The fabric support plate is provided with an adsorption hole 220 connected to the negative pressure chamber. When the fabric is cut, the fabric on the fabric support plate is fixed on the fabric support plate by the adsorption effect of the adsorption hole before being caught by the fabric clamping mechanism again, so as to avoid movement or rolling.

[0029] It is obvious to those skilled in the art that the utility model can be changed in many ways, and such changes are not considered to be out of the scope of the utility model. All such modifications obvious to those skilled in the art will be included in the scope of the claims.

Claims

1. An efficient cutting device for warp knitted fabric processing, characterized in that: It comprises two clamping rollers which are fitted to each other, wherein the clamping rollers are horizontal non-powered rollers and are provided with a brake mechanism; The fabric supporting plate is arranged at the rear side of the clamping roller and is arranged horizontally; A lifting plate is arranged at the rear side of the fabric supporting plate, and can be raised to the same height as the fabric supporting plate; A cutting assembly is arranged on the upper side of the lifting plate, comprising a fixing frame, a lower pressing plate arranged to be lifted relative to the fixing frame, a front pressing plate arranged at the bottom of the lower pressing plate, a cutting knife slide rail arranged at the bottom of the lower pressing plate, a rear pressing plate arranged at the bottom of the lower pressing plate, and a roller cutter module slidably arranged on the cutting knife slide rail; The cloth pulling assembly includes two servo slide rails horizontally distributed in the front-to-back direction, a movable frame driven by the two servo slide rails to translate forward and backward, and a cloth clamping mechanism arranged on the movable frame, wherein the clamping height of the cloth clamping mechanism is adapted to the height of the fabric supporting plate.

2. The high-efficiency cutting device for warp knitted fabric processing according to claim 1 is characterized in that: It also includes a horizontally arranged conveyor belt, which is located between the two servo slide rails, and the height of the upper surface of the conveyor belt is lower than the movement track of the cloth clamping mechanism.

3. The high-efficiency cutting device for warp knitted fabric processing according to claim 1 or 2, characterized in that: The cloth clamping mechanism includes a scissors-type clamping mechanism and a second servo electric cylinder that drives it to open and close. The scissors-type clamping mechanism includes a first clamping rod, a second clamping rod, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first fixed axis, a second fixed axis, a first movable axis and a second movable axis. The telescopic rod of the servo electric cylinder is connected to the second movable axis.

4. The high-efficiency cutting device for warp knitted fabric processing according to claim 1 is characterized in that: At least two guide rods are fixed to the upper sides of the front pressing plate and the rear pressing plate, respectively. The guide rods are vertically slidably assembled with the lower pressing plate, and a return spring is connected between the two pressing plates and the lower pressing plate.

5. The high-efficiency cutting device for warp knitted fabric processing according to claim 1 is characterized in that: A negative pressure cavity is provided at the bottom of the fabric support plate, the negative pressure cavity is connected to the negative pressure device, and an adsorption hole communicating with the negative pressure cavity is provided on the fabric support plate.

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