Shearing device for light and thin knitted fabric

Abstract

The utility model discloses a shearing device for light and thin knitted fabric, which comprises a machine body, the machine body comprises a feeding frame, a conveying belt and a shearing device, a flattening and positioning assembly is arranged at the top of the rear side of the conveying belt, first pressing rods are symmetrically arranged on the front side and the rear side of the flattening and positioning assembly, and a second pressing rod is arranged between the first pressing rods. The shearing device comprises a tool bit base and a tool bit seat, an air cylinder is arranged at the top of the tool bit seat, a tool bit is arranged between the air cylinder and the tool bit seat, and the tool bit seat can move up and down through the air cylinder to be embedded into the tool bit base. According to the utility model, the fabric winding roller and the discharging winding roller of the discharging frame can be used for discharging materials to the conveying belt; a first material pressing rod and a second material pressing rod of the flattening and positioning assembly can flatten the light and thin knitted fabric, and deviation can be prevented through a red line outer positioning instrument; and finally, limiting blocks abut against fixing blocks to straighten and fix the front side and the rear side of the light and thin knitted fabric, after the limiting blocks abut against the fixing blocks, a spring retracts to expose a tool bit, then the light and thin knitted fabric is sheared through the tool bit, and the precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of textiles, in particular to a shearing device for light and thin knitted fabrics. Background Art

[0002] Knitted fabrics are fabrics formed by bending yarns into loops and interlacing them with knitting needles; knitting is divided into warp knitting and weft knitting. Knitted fabrics are widely used in clothing fabrics and linings. Now many woven knitted fabrics are light and thin, and have a wider range of applications. When processing knitted fabrics, they are often cut into sections by a cutting machine. Due to the thin and light characteristics of light knitted fabrics, existing knitted fabric shearing devices often have incomplete shearing during shearing. In addition, because light and thin knitted fabrics have a certain elasticity, if the front and back sections are not well straightened and fixed, the fabrics cut by the shearing knife are prone to unevenness, which not only makes the light and thin knitted fabrics not meet the shearing requirements and causes waste, but also reduces the practicality and applicability of the shearing device. In view of this, the inventor proposes a shearing device for light and thin knitted fabrics, which is used to flatten the light and thin knitted fabrics before shearing, and can fix and straighten the front and back ends of the light and thin knitted fabrics during shearing, so that the knife head can perform precise shearing, improve the shearing quality and improve the applicability of the shearing machine.

[0003] In order to avoid the misalignment and unevenness of knitted fabrics during the transmission process that affects the shearing, and at the same time be suitable for shearing knitted fabrics of different specifications and widths, a Chinese patent (authorization announcement number: CN220392778U) discloses a blended knitted fabric winding and cutting device. The utility model includes a workbench, a winding shaft is arranged on the upper surface of the workbench, one side of the winding shaft is fixedly connected to a motor, the output end of the motor is fixedly connected to the winding shaft, the upper surface of the workbench is fixedly connected to a U-shaped frame, and the surface of the U-shaped frame is fixedly connected to an electric push rod. The utility model moves the guide rod on the fixed plate through an adjusting device, rotates the fixing bolt on the pad, and the fixing bolt squeezes the groove of the guide rod, thereby achieving the effect of fixing the guide rod, making it convenient for the staff to limit the fabrics of different widths, and avoiding the misalignment of the fabrics during the transmission process as much as possible, thereby causing the fabrics cut by the shearing knife to be unqualified.

[0004] This solution still has some shortcomings in application. Since knitted fabrics have a certain elasticity, they are easily stretched during cutting, resulting in inaccurate cutting and uneven cutting edges. At the same time, thin knitted fabrics are light in weight and easily displaced during transportation, which can also cause inaccurate cutting. Therefore, it is necessary to improve the structure of the cutting device for thin knitted fabrics so that the knitted fabrics can be flattened during transportation and fixed during cutting to improve the accuracy of cutting. Utility Model Content

[0005] The utility model discloses a shearing device for light and thin knitted fabrics, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the prior art.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A shearing device for light and thin knitted fabrics comprises a machine body, which comprises a material unloading rack, a conveyor belt and a shearing device in order from the back to the front. A flattening and positioning assembly is installed on the top of the rear side of the conveyor belt. A first pressing rod is symmetrically arranged on the front and rear sides of the flattening and positioning assembly. The first pressing rod is provided with a slide rail, a second pressing rod is arranged between the slide rails, and a telescopic rod is arranged between the second pressing rods. The shearing device is arranged on the front side of the conveyor belt. The shearing device comprises a cutter head base and a cutter head seat. A cylinder is provided on the top of the cutter head seat and a cutter head is installed therebetween. The cutter head seat can be moved up and down by the cylinder to engage with the cutter head base.

[0008] Furthermore, a fabric roller is provided on the rear side of the unwinding rack, and the fabric roller is used to place thin knitted fabrics, and a unwinding roller is provided on the front side of the fabric roller.

[0009] Furthermore, there are two of each of the first pressing rod and the second pressing rod, which are vertically arranged, and the second pressing rod can slide left and right along the slide rail.

[0010] Furthermore, an infrared locator is installed in the middle of the telescopic rod.

[0011] Furthermore, a "V"-shaped shearing groove is provided in the middle of the cutter head base, and fixing blocks are provided on the front and rear sides of the shearing groove.

[0012] Furthermore, the front and rear sides of the cutter head seat are provided with spring grooves, a plurality of springs are built in the spring grooves, and a limiting block is installed at the end of the spring, and the limiting block is movably abutted against the fixed block.

[0013] Furthermore, support frames are provided on both sides of the machine body, and a control panel is provided on one side of the support frame.

[0014] It can be seen from the above description of the utility model that, compared with the prior art, the advantages of the utility model are:

[0015] The utility model first sets a feeding rack at the rear side of the machine body, and the feeding rack is provided with a fabric roller and a feeding roller, and the light and thin knitted fabric can be conveyed to the conveyor belt through the feeding roller; then, a leveling and positioning assembly is provided on the top of the rear side of the conveyor belt, and the first pressing rod and the second pressing rod of the leveling and positioning assembly can level the light and thin knitted fabric, and the second pressing rod can be adjusted left and right according to the width of the light and thin knitted fabric, and a red line external positioning instrument is provided on the telescopic rod between the second pressing rods, which can position the light and thin knitted fabric to avoid deviation; finally, the light and thin knitted fabric is sheared by the shearing groove between the cutter head seat of the shearing device and the cutter head base. During the shearing process, the front and rear sides of the light and thin knitted fabric are first straightened and fixed by the limit block and the fixed block, and the limit block is retracted by the spring after the abutment to expose the cutter head, and then the light and thin knitted fabric is sheared by the cutter head, with high precision. The utility model has a novel structure and a clever design, can achieve precise shearing of light and thin knitted fabrics, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0018] Figure 3 It is a side structural schematic diagram of the shearing device of the utility model. DETAILED DESCRIPTION

[0019] The specific implementation of the present utility model will be further described below with reference to the accompanying drawings.

[0020] like Figures 1 to 3 As shown, a shearing device for light and thin knitted fabrics includes a body, which includes a material unloading rack 1, a conveyor belt 2 and a shearing device 3 in sequence from the back to the front. A flattening and positioning component 4 is installed on the top of the rear side of the conveyor belt 2. The flattening and positioning component 4 has a first pressing rod 41 symmetrically arranged on the front and rear sides. The first pressing rod 41 is provided with a slide rail 42, and a second pressing rod 43 is arranged between the slide rails 42. A telescopic rod 44 is arranged between the second pressing rods 43. The shearing device 3 is arranged on the front side of the conveyor belt 2. The shearing device 3 includes a cutter head base 31 and a cutter head seat 32. A cylinder 33 is provided on the top of the cutter head seat 32 and a cutter head 34 is installed therebetween. The cutter head seat 32 can be moved up and down by the cylinder 33 to be engaged with the cutter head base 31.

[0021] Furthermore, a fabric roller 11 is provided at the rear side of the unwinding rack 1 , and the fabric roller 11 is used to place light and thin knitted fabrics. A material unwinding roller 12 is provided at the front side of the fabric roller 11 .

[0022] Furthermore, there are two first pressing rods 41 and two second pressing rods 43 , which are vertically arranged. The second pressing rods 43 can slide left and right along the slide rails 42 .

[0023] Furthermore, an infrared locator 45 is installed in the middle of the telescopic rod 44 .

[0024] Furthermore, a V-shaped shearing groove 5 is provided in the middle of the cutter head base 31 , and fixing blocks 6 are provided on the front and rear sides of the shearing groove 5 .

[0025] Furthermore, the front and rear sides of the cutter head seat 32 are provided with spring grooves, and a plurality of springs 7 are built in the spring grooves. A limiting block 8 is installed at the end of the spring 7, and the limiting block 8 is movably abutted against the fixing block 6.

[0026] Furthermore, support frames 9 are provided on both sides of the machine body, and a control panel 10 is provided on one side of the support frame 9 .

[0027] [Example]

[0028] First, the light and thin knitted fabric is hung on the fabric roll 11 in the form of a coil and driven forward to the conveyor belt 2 by the unwinding roll 12. Then, the light and thin knitted fabric continues to be conveyed forward on the conveyor belt 2. During the conveying process, it is flattened and positioned by the flattening and positioning component 4 on the conveyor belt 2. The second pressing rod 43 slides along the slide rail 42 to correspond to the width of the light and thin knitted fabric, and the left and right sides of the light and thin knitted fabric are straightened. The first pressing rod 41 presses the front and back sides of the light and thin knitted fabric to avoid wrinkles. At the same time, the red line outer positioning instrument 4 on the retractable rod 44 is used. 5 is positioned to avoid deviation. Finally, the light and thin knitted fabric is conveyed to the bottom of the shearing device 3. The cylinder 33 is started through the control panel 10. The cylinder 33 drives the cutter head seat 32 to slide downward. During the sliding process, the limit block 8 first abuts against the fixed block 6 of the cutter head base 31, and the limit block 8 abuts against the fixed block 6 to hold the light and thin knitted fabric up and down to straighten the light and thin knitted fabric. The cutter head seat 32 continues to slide downward, the limit block 8 slides upward, and the spring 7 is compressed to store energy, and the cutter head 34 is exposed. The rear cutter head 34 shears the light and thin knitted fabric again to achieve precise shearing.

[0029] It can be seen from the above description of the utility model that, compared with the prior art, the advantages of the utility model are:

[0030] The utility model first sets a feeding rack at the rear side of the machine body, and the feeding rack is provided with a fabric roller and a feeding roller, and the light and thin knitted fabric can be conveyed to the conveyor belt through the feeding roller; then, a leveling and positioning assembly is provided on the top of the rear side of the conveyor belt, and the first pressing rod and the second pressing rod of the leveling and positioning assembly can level the light and thin knitted fabric, and the second pressing rod can be adjusted left and right according to the width of the light and thin knitted fabric, and a red line external positioning instrument is provided on the telescopic rod between the second pressing rods, which can position the light and thin knitted fabric to avoid deviation; finally, the light and thin knitted fabric is sheared by the shearing groove between the cutter head seat of the shearing device and the cutter head base. During the shearing process, the front and rear sides of the light and thin knitted fabric are first straightened and fixed by the limit block and the fixed block, and the limit block is retracted by the spring after the abutment to expose the cutter head, and then the light and thin knitted fabric is sheared by the cutter head, with high precision. The utility model has a novel structure and a clever design, can achieve precise shearing of light and thin knitted fabrics, and is suitable for promotion.

[0031] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial improvement of the utility model using this concept should be regarded as an infringement of the protection scope of the utility model.

Claims

1. A shearing device for thin knitted fabrics, characterized in that: It includes a machine body, which includes a material unloading rack, a conveyor belt and a shearing device in sequence from the back to the front. A leveling and positioning component is installed on the top of the rear side of the conveyor belt. A first pressing rod is symmetrically arranged on the front and rear sides of the leveling and positioning component. The first pressing rod is provided with a slide rail, a second pressing rod is arranged between the slide rails, and a telescopic rod is arranged between the second pressing rods. The shearing device is arranged on the front side of the conveyor belt. The shearing device includes a cutter head base and a cutter head seat. A cylinder is provided on the top of the cutter head seat and a cutter head is installed therebetween. The cutter head seat can be moved up and down by the cylinder to be engaged with the cutter head base.

2. A shearing device for thin knitted fabrics according to claim 1, characterized in that: A fabric roller is provided at the rear side of the unwinding rack, and the fabric roller is used for placing light and thin knitted fabrics. A material unwinding roller is provided at the front side of the fabric roller.

3. A shearing device for thin knitted fabrics according to claim 1, characterized in that: There are two first pressing rods and two second pressing rods which are vertically arranged. The second pressing rods can slide left and right along the slide rails.

4. A shearing device for thin knitted fabrics according to claim 1, characterized in that: An infrared locator is arranged in the middle of the telescopic rod.

5. A shearing device for thin knitted fabrics according to claim 1, characterized in that: A "V"-shaped shearing groove is arranged in the middle of the cutter head base, and fixing blocks are arranged on the front and rear sides of the shearing groove.

6. A shearing device for thin knitted fabrics according to claim 5, characterized in that: The front and rear sides of the cutter head seat are provided with spring grooves, a plurality of springs are built in the spring grooves, and a limiting block is arranged at the end of the spring, and the limiting block is movably abutted against the fixed block.

7. A shearing device for thin knitted fabrics according to claim 1, characterized in that: Support frames are arranged on both sides of the machine body, and a control panel is arranged on one side of the support frame.

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