Curled edge shifting device used before knitted fabric end sewing

Abstract

The utility model relates to the technical field of sewing equipment. A hemming device used before knitting fabric sewing comprises a feeding mechanism erected on the upper portion and an edge stirring device arranged on the lower portion, the edge stirring device comprises working frames on the two sides, a plurality of edge stirring devices capable of adjusting the front-back distance and the transverse position are erected on the front sides and the rear sides of the working frames at intervals, and the edge stirring devices are driven by a driving device to swing in a reciprocating mode to stir edges. A tensioning roller is arranged between every two adjacent edge shifting devices, a centering piece is arranged on each tensioning roller, sewing equipment is arranged at the discharging end of the edge shifting device, and blowing pipes are arranged between the sewing equipment and the edge shifting devices. The hemming device used before knitting fabric end sewing can greatly improve the product quality, improve the production efficiency and save manpower resources and cost, and is suitable for hemming of various kinds of fabric. The technical problems that in the prior art, an existing knitted fabric is prone to curling before being processed, the curled edge needs to be manually flattened, manpower resources are greatly wasted, the working efficiency is low, and the product quality cannot be guaranteed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing equipment, in particular to a hem-setting and curling device used for knitted fabrics before sewing. Background Art

[0002] With the development of the economy, people's demand for clothing is becoming more and more diversified, and the textile industry is developing rapidly. According to the style and fabric of clothing, various sewing equipment are needed.

[0003] In the process of processing single-sided knitted fabrics, this type of fabric is particularly prone to curling after being subjected to warp force, which brings certain difficulties to the seam. If the edge smoothing effect of the curling is not good, it will lead to problems with the quality of the fabric seam. The usual way to solve the problem is to slow down the speed, smooth it out manually before entering the machine to sew. Although this can achieve good results, it is slow, wastes labor, and has low safety, so it needs to be improved. Utility Model Content

[0004] The utility model provides a device for curling and hemming knitted fabrics before sewing, which can greatly improve product quality, increase production efficiency, save human resources and costs, and is suitable for curling the edges of various fabrics. It solves the technical problems in the prior art that knitted fabrics are prone to curling before processing and need to be manually smoothed, which wastes human resources, has low work efficiency, and cannot guarantee product quality.

[0005] The above technical problems of the present invention are solved by the following technical solutions: a device for removing and curling the edge of a knitted fabric before sewing, comprising a feed mechanism mounted above and a trimming device below, the trimming device comprising two working frames, a plurality of trimming devices with adjustable front-to-back distance and lateral position being provided on the front and rear sides of the working frames, the trimming devices being driven to swing back and forth by a driving device to remove the edge, a tensioning roller being provided between adjacent trimming devices, a centering member being provided on the tensioning roller, a sewing device being provided at the discharge end of the trimming device, and a blowpipe being provided between the sewing device and the trimming device. During operation, the knitted fabric is fed downward by the feed mechanism, the fabric passes through the plurality of trimming devices in sequence, the trimming devices remove the curled edge of the knitted fabric, the centering member above the tensioning roller being used to determine whether the fabric is centered during the process, the blowpipe blowing away the last curled edge before the fabric passes through the sewing device, ensuring that the fabric entering the sewing device has no curled edge, and the fabric is finally discharged after the sewing device has sewn the edge.

[0006] Preferably, the feeding mechanism includes a feeding frame mounted above the edge-shifting device, on which are spaced a plurality of feeding rollers and a bending roller for adjusting tension. The feeding rollers cooperate with a motor to feed the material, and the bending rollers can adjust the tension of the fabric through a tension regulator to ensure smooth fabric.

[0007] As an example, the edge stripper includes a 4-tooth edge stripper and an 8-tooth edge stripper. The number of teeth of the edge stripper can be adjusted according to actual needs, and can be adjusted to 4 teeth, 6 teeth, or 8 teeth. The present invention is described by taking a 4-tooth edge stripper and an 8-tooth edge stripper as examples.

[0008] Preferably, the four-tooth edge stripper is installed on the feeding end of the edge stripping device, and the four-tooth edge stripper is connected and matched with the feeding mechanism. In the utility model, the four-tooth edge stripper is connected and matched with the feeding mechanism. After the fabric is folded by the bracket, the curled edges are located on the same side. The four-tooth edge stripper is used to initially separate the curled edges of the fabric.

[0009] Preferably, two adjacent four-tooth edge strippers on the same side are installed obliquely toward the middle. The two adjacent four-tooth edge strippers gather toward the middle to fit the direction of the cloth during folding.

[0010] Preferably, the 4-tooth edge stripper is composed of 4 diagonally arranged edge stripping teeth, with two adjacent edge stripping teeth staggered up and down at an angle, and the angle between the 4-tooth edge stripper and the edge of the fabric is 45 degrees. During the processing, the 4-tooth edge stripper first strips the curled edge of the fabric, and the fabric enters the 4-tooth edge stripper at an oblique angle, which improves the edge stripping effect.

[0011] Preferably, the 8-tooth edge stripper includes four teeth arranged at an angle to each other on both sides and four parallel horizontal rulers in the middle. The 8-tooth edge stripper is at a 90-degree angle to the edge of the fabric. The 8-tooth edge stripper has a large number of teeth, which can provide a more comprehensive edge stripping of the fabric.

[0012] Preferably, the 8-tooth edge stripper is driven by a motor to rotate around a motor shaft, and the rotation angle of the 8-tooth edge stripper is between 45 degrees and 90 degrees. When the 8-tooth edge stripper is in operation, the motor drives the 8-tooth edge stripper to swing back and forth, which can better separate the curled edge of the fabric. The motor controls the rotation angle of the 8-tooth edge stripper to prevent it from coming off the fabric.

[0013] Preferably, the lengths of the teeth of the two adjacent 8-tooth edge strippers are the same or different. The lengths of the teeth of the two adjacent 8-tooth edge strippers can be the same or different. The present invention is described by taking the example of two adjacent 8-tooth edge strippers with different lengths of teeth as an example. It can be applied to fabrics of different widths and can be used to strip the edges of different positions of the fabric to avoid the curling of some places not being peeled off.

[0014] Preferably, the 4-tooth and 8-tooth edge strippers are moved by a plurality of guide rollers mounted on a work frame, which is provided with a plurality of cylinders that can be driven to adjust the front and rear positions. The 4-tooth and 8-tooth edge strippers can be adjusted in front and rear positions by the cylinders and guide rollers, and adjusted according to the width of the fabric.

[0015] Preferably, the blowpipe comprises a corrugated air pipe mounted on a work frame, with a hose extending from the end of the corrugated air pipe. The blowpipe blows away the last curling edge of the fabric before it passes through the sewing machine, ensuring that the fabric entering the sewing machine has no curling edge.

[0016] Preferably, the diameter of the hose is smaller than that of the corrugated air pipe. The hose is attached to the surface of the fabric to blow the curled edge open, so the hose has a small diameter and is easy to put into the curled edge.

[0017] Preferably, the centering member includes a centering ruler fixed above the tensioning roller, and a scale is provided on the centering ruler. During processing, the centering ruler above the tensioning roller can also be used to determine whether the cloth is centered.

[0018] Therefore, the utility model provides a device for curling the edges of knitted fabrics before sewing, which has the following advantages: it can greatly improve product quality, increase production efficiency, save human resources and costs, is suitable for curling the edges of fabrics of various widths and materials, and has a good curling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a three-dimensional structural diagram of a device for curling and hemming knitted fabrics before sewing.

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 yes Figure 1 Schematic diagram of the left view structure.

[0022] Figure 4 yes Figure 1 Schematic diagram of the top view structure.

[0023] Figure 5 yes Figure 1 Schematic diagram of the three-dimensional structure of the 4-tooth edge shifter.

[0024] Figure 6 yes Figure 5 Schematic diagram of the main structure.

[0025] Figure 7 yes Figure 1 Schematic diagram of the three-dimensional structure of the 8-tooth edge shifter.

[0026] Figure 8 yes Figure 7 Schematic diagram of the right view structure.

[0027] In the figure, there are feed rack 1, feed roller 2, bending roller 3, tension regulator 4, working rack 5, 4-tooth edge shifter 6, 8-tooth edge shifter 7, cylinder 8, level 9, edge shifting teeth 10, motor 11, centering ruler 12, sewing equipment 13, corrugated air pipe 14, and hose 15. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0029] Example:

[0030] like Figure 1 and 2 As shown in Figures 3, 4, 5, 6, 7 and 8, a device for curling and hemming knitted fabrics before sewing comprises a feeding mechanism mounted above and an edge curling device installed below, the feeding mechanism comprises a feeding rack 1 mounted above the edge curling device, a plurality of feeding rollers 2 and bending rollers 3 for adjusting tension are installed at intervals on the feeding rack 1, and a tension adjuster 4 cooperating with the bending roller 3 is installed on the outside of the feeding rack 1.

[0031] The edge stripping device includes a working frame 5 installed on the front and rear sides, and a number of edge strippers are installed on the working frame 5 at intervals. The edge strippers include a 4-tooth edge stripper 6 and an 8-tooth edge stripper 7. A number of guide rollers are installed on the working frame 5. The 4-tooth edge stripper 6 and the 8-tooth edge stripper 7 can move forward and backward and left and right along the guide rollers. The working frame 5 is also equipped with a cylinder 8 for driving the 4-tooth edge stripper 6 and the 8-tooth edge stripper 7 to move forward and backward.

[0032] The 4-tooth edge stripper 6 is installed at the left feeding end of the edge stripping device. The 4-tooth edge stripper 6 is connected and matched with the feeding mechanism. The two adjacent 4-tooth edge strippers 6 on the same side are installed obliquely gathered toward the middle.

[0033] The 4-tooth edge stripper 6 is composed of 4 obliquely arranged edge stripping teeth 10, and two adjacent edge stripping teeth 10 are staggered up and down to form an angle distribution, and the angle between the 4-tooth edge stripper 6 and the edge of the cloth is 45 degrees.

[0034] The 8-tooth edge shifter 7 includes 4 edge shifting teeth 10 on both sides that are distributed at an angle up and down and 4 parallel horizontal rulers 9 in the middle. The angle between the 8-tooth edge shifter 7 and the edge of the fabric is 90 degrees; the 8-tooth edge shifter 7 is driven by the motor 11 to rotate around the axis of the motor 11, and the rotation angle of the 8-tooth edge shifter 7 is between 45 degrees and 90 degrees.

[0035] The lengths of the edge shifting teeth 10 of two adjacent 8-tooth edge shifters 7 are different.

[0036] A tensioning roller is installed between the two adjacent edge strippers on the left and right. A centering piece is installed on the tensioning roller. The centering piece includes a centering ruler 12 fixedly installed above the tensioning roller. The centering ruler 12 is provided with symmetrical scales.

[0037] A sewing device 13 is provided at the discharge end of the edge stripping device, and a blow pipe is installed between the sewing device 13 and the edge stripping device. The blow pipe includes a corrugated air pipe 14 installed on the working frame 5, and a hose 15 is extended from the end of the corrugated air pipe 14. The diameter of the hose 15 is smaller than the diameter of the corrugated air pipe 14.

[0038] During operation, the knitted fabric is fed downward by the feeding mechanism, and the fabric is folded by the bracket and the curled edges are located on the same side. The fabric passes through the 4-tooth edge shifter 6, the tensioning roller and the 8-tooth edge shifter 7 in sequence, and is finally discharged after being sewn by the sewing device 13. During the processing, the 4-tooth edge shifter 6 first shifts the curled edges of the fabric, and the fabric enters the 4-tooth edge shifter 6 at an angle, which has a better shifting effect. During processing, the fabric can also be judged whether it is centered by the centering ruler 12 above the tensioning roller. When working, the 8-tooth edge shifter 7 is driven by the motor 11 to swing back and forth to shift the edges, which can better shift the curled edges of the fabric. Before the fabric passes through the sewing device 13, the blowpipe will blow away the last curled edge to ensure that the fabric entering the sewing device 13 has no curled edges, and finally the fabric is discharged after being sewn by the sewing device 13.

Claims

1. A device for curling and hemming knitted fabric before sewing, comprising a feeding mechanism mounted above and an edge curling device mounted below, characterized in that: The edge stripping device includes working frames on both sides. The spacer frames on the front and rear sides of the working frames are provided with several edge strippers that can adjust the front and rear distance and lateral position. The edge strippers are driven to swing back and forth by a driving device to strip the edges. A tensioning roller is provided between adjacent edge strippers, and a centering piece is provided on the tensioning roller. A sewing device is provided at the discharge end of the edge stripping device, and a blowpipe is provided between the sewing device and the edge stripper.

2. The device for curling the edge of knitted fabric before sewing according to claim 1, characterized in that: The edge strippers include 4-tooth edge strippers and 8-tooth edge strippers.

3. The device for curling the edge of knitted fabric before sewing according to claim 2, characterized in that: The four-tooth edge stripper is installed on one side of the feeding end of the edge stripping device, and the four-tooth edge stripper is connected and matched with the feeding mechanism.

4. The device for curling the edge of knitted fabric before sewing according to claim 3, characterized in that: The two adjacent 4-tooth edge shifters on the same side are installed obliquely toward the middle.

5. The device for setting and curling the edge of knitted fabric before sewing according to claim 4, characterized in that: The four-tooth edge stripper is composed of four obliquely arranged edge stripping teeth, two adjacent edge stripping teeth are staggered up and down to form an angle distribution, and the angle between the four-tooth edge stripper and the edge of the cloth is 45 degrees.

6. The device for curling the edge of knitted fabric before sewing according to claim 2, characterized in that: The 8-tooth edge stripper includes 4 edge strippers with staggered angles on both sides and 4 parallel horizontal rulers in the middle. The angle between the 8-tooth edge stripper and the edge of the cloth is 90 degrees.

7. The device for setting and curling the edge of knitted fabric before sewing according to claim 6, characterized in that: The 8-tooth edge stripper is driven by a motor to rotate around the motor shaft, and the rotation angle of the 8-tooth edge stripper is between 45 degrees and 90 degrees.

8. A device for hemming knitted fabric before sewing according to any one of claims 2 to 7, characterized in that: The 4-tooth edge stripper and the 8-tooth edge stripper are moved by a plurality of guide rollers installed on a working frame, and the working frame is provided with a plurality of cylinders that can drive and adjust the front and rear positions.

9. The device for setting and curling the edge of knitted fabric before sewing according to claim 1, characterized in that: The blowpipe comprises a corrugated air pipe installed on a working frame, and a hose is extended from the end of the corrugated air pipe.

10. The device for setting and curling the edge of knitted fabric before sewing according to claim 1, characterized in that: The centering piece comprises a centering ruler fixed above the tensioning roller, and a scale is provided on the centering ruler.

Images