A pull tube with automatic elasticity ratio adjustment for home textile lapped rubber band

Abstract

A pull tube for automatically adjusting the elasticity ratio of a lapped rubber band for home textiles relates to the technical field of home textile production. The outlet end of the rubber band stretching channel is connected to the inlet end of the rubber band pull tube groove, the middle section of the rubber band pull tube groove is fixedly connected to the connection function sliding groove, the connection function sliding groove is connected to one end of the rotating shaft rod connected to the base through an adjusting screw, the other end of the base connected to the rotating shaft rod is movably sleeved with the pull tube base, the pull tube base is installed on the sewing equipment table, the upper part of the rubber band pull tube groove is away from the side of the connecting function sliding groove and is provided with a fabric seam head groove, and a resistance plate is also provided in the rubber band stretching channel, the resistance plate is connected to the rubber band stretching channel through the rubber band tension adjustment screw, and the outlet end of the rubber band pull tube groove is in a straight line with the sewing machine needle. The present invention can ensure that the seam head size of the fabric is consistent, the elasticity ratio requirement of the rubber band is guaranteed, and the elastic force of the rubber band is evenly distributed around the bed sheet, so as to realize continuous production, and is suitable for the production of home textile bed sheet products with high elasticity ratio requirements of the rubber band, and has a wide range of applications.

Description

Technical Field

[0001] The invention relates to the technical field of home textile production, in particular to a pull tube for automatically adjusting the elasticity ratio of a lapped elastic band for home textiles. Technical Background

[0002] At present, in the sewing process of overlapping elastic bands of home textile products, the conventional production method is to stretch the elastic band and then overlap it on the edge of the fabric. The operator manually stretches the lower elastic band and overlaps the fabric on top for sewing. During sewing, the size of the seam allowance of the overlapping fabric and the elasticity ratio of the elastic band are determined by the operator's experience.

[0003] In actual production, the above method has many drawbacks. The size of the overlapping seam is controlled by the operator, and the seam sizes of the fabrics are inconsistent, and may even leak, which directly affects the appearance of the finished product and seriously affects the quality of home textile products. The elasticity of the elastic band is stretched manually, which will cause the elasticity of the sewn product to be inconsistent, indicating that the elastic band that is stretched to the right position will fold more after relaxation, or that the elastic band that is not stretched enough will fold loosely after relaxation, resulting in poor appearance of the finished product. The products made manually in the prior art cannot meet the quality requirements of customers, the product quality is poor, and it takes too long, time-consuming and labor-intensive, affecting work efficiency, and is not suitable for mass order production. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a pull tube with automatically adjusting the elastic ratio of the lapped rubber band for home textiles, so as to solve the problem of inconsistent seam size of fabrics and elastic ratio of the lapped rubber band, stabilize product quality and improve work efficiency.

[0005] To achieve the above-mentioned invention objectives, the present invention includes an elastic stretching channel, an elastic pull cylinder groove, a connecting function sliding groove, a base connected to a rotating shaft rod, and a pull cylinder base; the outlet end of the elastic stretching channel is connected to the inlet end of the elastic pull cylinder groove, the outer middle section of the elastic pull cylinder groove is fixedly connected to the connecting function sliding groove, the connecting function sliding groove is connected to one end of the base connected to the rotating shaft rod through an adjusting screw, the other end of the base connected to the rotating shaft rod is movably connected to the pull cylinder base through a fixing knob screw, and the pull cylinder base is installed on the sewing equipment table through a fixing screw; a fabric seam head groove is provided on the side of the upper part of the elastic pull cylinder groove away from the connecting function sliding groove, and a resistance plate is also provided in the elastic stretching channel, the resistance plate is connected to the elastic stretching channel through an elastic tension adjustment screw, and the elastic tension adjustment screw is located on the outside of the elastic stretching channel, and the outlet end of the elastic pull cylinder groove is in a straight line with the sewing machine needle.

[0006] Furthermore, the fabric seam groove has a width of 1 cm, which is consistent with the overlap seam.

[0007] Furthermore, the elastic pull tube groove is a U-shaped structure, and the inner width of the elastic pull tube groove is 2.5 cm.

[0008] Furthermore, the elastic stretching channel is a flat cylindrical channel, the resistance plate is located at the upper part of the inlet end of the elastic stretching channel, and the resistance plate is a rectangular plate, and its width is consistent with the width of the inlet end of the elastic stretching channel.

[0009] Furthermore, a stop rod is provided at the rear end of the pull tube base, and a connecting rod for pushing the connecting function sliding groove is provided at the connection between the connecting function sliding groove and the elastic pull tube groove, and the height of the connecting rod is lower than the height of the stop rod.

[0010] Furthermore, the rubber band stretching channel, rubber band pull tube groove, connection function sliding groove, base connection rotating shaft rod, pull tube base, and resistance plate are made of stainless steel and are smooth and free of burrs.

[0011] Compared with the prior art, the present invention can ensure that the seam allowances of the fabrics are consistent in size, ensure that the elasticity ratio of the rubber band meets the technical parameter requirements, and evenly distribute the elastic force of the flat rubber band around the fitted sheet, thereby reducing the number of stops and achieving continuous production. The present invention is particularly suitable for the production of home textile fitted sheet products that require a high elasticity ratio of the flat rubber band. Compared with manual operation, the production efficiency is greatly improved, the stable product quality can meet the requirements of customers, the operation is convenient, and the scope of application is wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic top view of the structure of the present invention.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.

[0014] Figure 3 yes Figure 1 Side view of.

[0015] Figure 4 yes Figure 1 Schematic diagram of the partial structure of the resistance plate.

[0016] In the figure, 1. elastic stretching channel, 2. elastic tightness adjustment screw, 3. fabric seam head slot, 4. elastic pull tube slot, 5. connection function sliding slot, 6. adjustment screw, 7. base connecting rotating shaft rod, 8. fixing knob screw, 9. pull tube base, 10. fixing screw, 11. resistance plate. DETAILED DESCRIPTION

[0017] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the present invention comprises an elastic stretching channel 1, an elastic pull cylinder groove 4, a connecting function sliding groove 5, a base connecting rotating shaft rod 7, and a pull cylinder base 9; the outlet end of the elastic stretching channel 1 is connected to the inlet end of the elastic pull cylinder groove 4, the middle section of the elastic pull cylinder groove 4 is fixedly connected to the connecting function sliding groove 5, the connecting function sliding groove 5 is connected to one end of the base connecting rotating shaft rod 7 via an adjusting screw 6, the other end of the base connecting rotating shaft rod 7 is movably sleeved with the pull cylinder base 9 via a fixing knob screw 8, and the pull cylinder base 9 is connected to the elastic pull cylinder groove 4 via an adjusting screw 6. The fixing screw 10 is installed on the sewing equipment table; the upper part of the elastic pull tube groove 4 is provided with a fabric seam head groove 3 on one side away from the connecting function sliding groove 5, and the elastic stretching channel 1 is also provided with a resistance plate 11, which is connected to the elastic stretching channel 1 through the elastic tension adjustment screw 2, and the elastic tension adjustment screw 2 is located at the outer upper edge of the elastic stretching channel 1. The elastic ratio of the elastic is controlled by adjusting the elastic tension adjustment screw 2, and the outlet end of the elastic pull tube groove 4 is in a straight line with the sewing machine needle. The pull tube for automatically adjusting the elastic ratio of the home textile lapped elastic is composed of a fabric control device and an elastic stretching device.

[0018] The fabric seam head groove 3 has a width of 1 cm, which is consistent with the overlap seam head.

[0019] The elastic pull tube groove 4 is a U-shaped structure, and the inner width of the elastic pull tube groove 4 is 2.5 cm, which can also be adjusted according to product specifications, and its width range is 2.0 to 3.0 cm.

[0020] The elastic stretching channel 1 is a flat cylindrical channel, and the resistance plate 11 is located at the upper edge of the inlet end of the elastic stretching channel 1. The resistance plate 11 is a rectangular plate, and its width is consistent with the upper edge of the inlet end of the elastic stretching channel 1. The resistance plate 11 is arranged in the middle of the elastic stretching channel 1, and the force formed by tightening the elastic tension adjustment screw 2 at the upper end acts on the upper side of the resistance plate 11, and the elastic ratio is stretched when the elastic passes between the resistance plate 11 and the elastic stretching channel 1.

[0021] A stop rod is provided at the tail end of the pull cylinder base 9, and a connecting rod for pushing the connecting function sliding groove 5 is provided at the connection between the connecting function sliding groove 5 and the elastic pull cylinder groove 4. The height of the connecting rod is lower than the height of the stop rod, which can effectively prevent the connecting function sliding groove 5 from stepping over the stop rod of the pull cylinder base 9 when rotating, thereby controlling the stroke of the connecting function sliding groove 5.

[0022] The rubber band stretching channel 1, rubber band pull tube groove 4, connection function sliding groove 5, base connection rotating shaft 7, pull tube base 9, and resistance plate 11 are made of stainless steel, which is smooth and burr-free, and can effectively prevent the product from being scratched or damaged.

[0023] The elastic band of the present invention is a flat elastic band for home textiles. The longitudinally distributed elastic latex line is woven from nylon line by a specific weaving method. The width of the flat elastic band varies from 0.5 to 20 cm. The specification used in the present invention is a 2.5 cm knitting machine flat elastic band, which can also be adjusted according to product needs.

[0024] When in use, the pull-tube base 9 is fixed on the sewing equipment table by the fixing screw 10. The sliding groove on the pull-tube base 9 can be adjusted at will according to production needs. The distance between the pull-tube and the sewing machine needle is adjusted by the adjusting screw 6 on the connecting function sliding groove 5 to ensure that the outlet position of the elastic pull-tube groove 4 and the sewing machine needle are appropriate and in a straight line. There is a fixed knob screw 8 between the pull-tube base 9 and the base connecting rotating shaft 7, which is used for flexible application when the sewing machine is on and off. When sewing, the pull-tube is axially rotated to the sewing machine needle position. After sewing, the pull-tube is swung counterclockwise to the right, which is convenient for the operator to quickly make the next product.

[0025] When the rubber band is pressed, a 2.5 cm wide flat rubber band is inserted from the entrance of the rubber band stretching channel 1, through the pressure plate 11 in the rubber band stretching channel 1, the rubber band pull tube groove 4, and the sewing machine needle is initially positioned, and then the two rubber band tension adjustment screws 2 at the upper end of the rubber band stretching channel 1 are rotated to control the resistance plate 11 of the rubber band stretching channel 1 to squeeze the flat rubber band, and the elastic force ratio of the flat rubber band can be adjusted to 1:2.2 to 2.5 times. After meeting the product process requirements, the flat rubber band is pulled out from the outlet of the rubber band stretching channel 1 and enters the rubber band pull tube groove 4, and is placed under the edge of the mattress cover cloth as required. There is a fabric seam head groove 3 on one side above the elastic pull tube groove 4, which controls the overlap seam head to be exactly 1 cm, the inner width of the elastic pull tube groove 4 is 2.5 cm (the flat elastic band is 2.5 cm wide), and the flat elastic band with a good elastic ratio is overlapped and pressed. The edge of the mattress sheet and the flat elastic band are sewn through the elastic pull tube groove 4 with the visible thread on the elastic band 0.6 cm away from one side, and the sewing machine needle is started, and the sewing work continues to complete the production of the product.

Claims

1. A pull tube for automatically adjusting the elasticity ratio of a lapped elastic band for home textiles, characterized in that: The invention comprises an elastic stretching channel (1), an elastic pull tube groove (4), a connecting function sliding groove (5), a base connecting rotating shaft rod (7), and a pull tube base (9); the outlet end of the elastic stretching channel (1) is connected to the inlet end of the elastic pull tube groove (4), the middle section of the elastic pull tube groove (4) is fixedly connected to the connecting function sliding groove (5), the connecting function sliding groove (5) is connected to one end of the base connecting rotating shaft rod (7) via an adjusting screw (6), and the other end of the base connecting rotating shaft rod (7) is connected to the pull tube base (9) via a fixing knob screw (8). ) is movably sleeved, the pull tube base (9) is mounted on the sewing equipment table via a fixing screw (10); a fabric seam head groove (3) is provided on the upper side of the elastic pull tube groove (4) away from the connecting function sliding groove (5), and a resistance plate (11) is also provided in the elastic stretching channel (1), and the resistance plate (11) is connected to the elastic stretching channel (1) via an elastic tension adjustment screw (2), and the elastic tension adjustment screw (2) is located on the outside of the elastic stretching channel (1), and the outlet end of the elastic pull tube groove (4) is in a straight line with the sewing machine needle; The fabric seam groove (3) has a width of 1 cm, which is consistent with the overlap seam; The elastic tube groove (4) is a U-shaped structure, and the inner width of the elastic tube groove (4) is 2.5 cm; The elastic stretching channel (1) is a flat cylindrical channel, the resistance plate (11) is located at the upper part of the inlet end of the elastic stretching channel (1), and the resistance plate (11) is a rectangular plate, and its width is consistent with the width of the inlet end of the elastic stretching channel (1); A stop rod is provided at the rear end of the pull tube base (9), and a connecting rod for pushing the connecting function sliding groove (5) is provided at the connection between the connecting function sliding groove (5) and the elastic pull tube groove (4), and the height of the connecting rod is lower than the height of the stop rod; The elastic band is a flat elastic band for home textiles, and the width of the flat elastic band is a 2.5 cm flat elastic band for a knitting machine; When in use, the flat rubber band is passed through the entrance of the rubber band stretching channel (1), through the resistance plate (11) in the rubber band stretching channel (1), the rubber band pull tube groove (4), and the sewing machine needle for preliminary positioning, and then the resistance plate (11) of the rubber band stretching channel (1) is rotated and controlled by two rubber band adjustment screws (2) at the upper end of the rubber band stretching channel (1) to squeeze the flat rubber band, and the elastic force ratio of the flat rubber band is adjusted to reach 1:2.2 to 2.5 times; then, the flat rubber band is The elastic band is pulled out from the outlet of the elastic band stretching channel (1) and enters the elastic band pull tube groove (4), and is placed under the edge of the fabric of the bed sheet; a fabric seam head groove (3) is provided on one side of the upper side of the elastic band pull tube groove (4) to control the overlap and pressure of the seam head; the inner width of the elastic band pull tube groove (4) is 2.5 cm, and the flat elastic band with a good elasticity ratio is overlapped and pressured; the fabric edge of the bed sheet and the flat elastic band are sewn through the elastic band pull tube groove (4) with a visible line distance of 0.6 cm on one side, and the sewing machine needle is started, and the sewing work continues to complete the production of the product.

2. A pull tube for automatically adjusting elasticity ratio of a lapped elastic band for home textiles according to claim 1, characterized in that: The rubber band stretching channel (1), the rubber band pull tube groove (4), the connecting function sliding groove (5), the base connecting rotating shaft (7), the pull tube base (9), and the resistance plate (11) are made of stainless steel and are smooth and free of burrs.

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