Sewing apparatus for sewing of bag top fabric and method of use thereof

Abstract

The application discloses a sewing device for sewing bag surface cloth and a use method thereof, which comprises an adjusting fixing device, a rotating base and a sewing machine for sewing cloth, the adjusting fixing device is arranged on the rotating base, and the sewing machine is arranged on the side surface of the adjusting fixing device; the adjusting fixing device comprises a supporting base, a clamping assembly and an adjusting assembly, the cloth can be clamped through the adjusting fixing device, the sewing end of the cloth and the sewing machine can be changed through the rotating base, the cloth can be pulled through the adjusting assembly when the cloth is clamped by the adjusting fixing device, the surface area of the cloth is improved, the cloth can wrap the bag, the meeting place of the two ends of the cloth can be heated through a softening mechanism, and the pattern on the cloth can be adjusted before the cloth is fixed, so that deviation can be avoided when the cloth is sewn on the bag.

Description

Technical Field

[0001] This invention relates to the field of sewing equipment for bag fabrics, specifically to sewing equipment for sewing the outer layer of bag fabrics and its usage method. Background Technology

[0002] In existing technologies, the fabric covering of bags is always sewn manually. During sewing, the fabric needs to be fixed in place by equipment before it can be sewn. However, the equipment can only fix the fabric and cannot pull or adjust it. Therefore, when operators sew the fabric on the top and bottom surfaces of the bag, the pattern is prone to being asymmetrical. Furthermore, when clamping and sewing stiffer fabrics or leathers, multiple operators are required to pull the fabric or leather together before it can be sewn onto the bag, which is too inconvenient. Summary of the Invention

[0003] This invention provides a sewing device and method for sewing the outer fabric of bags, which overcomes the shortcomings described in the background art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A sewing device for sewing the outer fabric of bags includes an adjusting and fixing device, a rotating base, and a sewing machine for sewing the fabric. The adjusting and fixing device is located on the rotating base, and the sewing machine is located on the side of the adjusting and fixing device. The adjusting and fixing device includes a supporting base, a clamping assembly, and an adjusting assembly. The clamping assembly is symmetrically mounted on the adjusting assembly, and the adjusting assembly is located on the supporting base. The supporting base is rotatably mounted on the rotating base. The clamping assembly generates negative pressure by drawing air from an external air pump through a connecting pipe. The clamping assembly includes two suction parts, left and right, each with two suction plates arranged symmetrically vertically. The two adjacent suction plates face the bag.

[0006] A preferred technical solution: The adjusting assembly includes a lead screw, a first cylinder, a lead screw slider, a motor, a fixing block, and a second cylinder. The lead screw slider is disposed on each adsorption plate, and the lead screw sliders on two adjacent adsorption plates are connected by the first cylinder. The lead screw passes through each lead screw slider with the long axis of the clamping assembly as the direction. One end of the lead screw is connected to the output shaft of the motor, and the other end is rotatably connected to the fixing block. Each motor is fixed with a fixing block, and each fixing block is fixed on the second cylinder. The second cylinder is perpendicular to the fixing block.

[0007] A preferred technical solution: each of the fixing blocks located on the lower side is fixed to the outside of the second cylinder, while each of the fixing blocks located on the upper side is fixed to the output shaft of the second cylinder, so as to push the adsorption plates located on the upper side upward by extending outward through the output shaft of the second cylinder.

[0008] A preferred technical solution: The support base has a sliding groove, and a slider is slidably disposed in the sliding groove. The adsorption part located on the left side is fixed to the support base by a second cylinder, and the adsorption part located on the right side is fixed to the slider by a second cylinder, so that when the adsorption part on the right side is pushed outward by the output axis of the first cylinder, it can slide along the direction of the sliding groove by the slider.

[0009] A preferred technical solution: Each of the adsorption plates is provided with multiple lead screw sliders, the lead screw passes through the multiple lead screw sliders in sequence, and the lead screw is driven by each lead screw slider.

[0010] A preferred technical solution: The support base includes a bracket, and a softening mechanism is mounted on the bracket. The softening mechanism includes a sleeve, a third cylinder, and a heating clamp. The sleeve is sleeved outside the third cylinder, and the heating clamp is inserted into the sleeve from the outside to the inside and connected to the output shaft of the third cylinder.

[0011] The heating clamp is heated by an external power source. The heating clamp includes two heating plates, an upper one and an lower one. The upper heating plate is oscillatingly connected to the other heating plate via a rotating shaft.

[0012] A method of using a sewing device for sewing the outer fabric of bags, the method comprising the following specific steps:

[0013] S1: Cut the fabric material to be sewn into long strips, and attach the two ends of the fabric to the upper and lower ends of the inner side of the clamping assembly. Use the air pump connected to the outside of the connecting pipe to create negative pressure and use the clamping assembly to adsorb and fix the fabric.

[0014] S2: Place the bag into the clamping assembly from one side of the fabric, and control the suction plate on the upper side to move down to meet the bag through each second cylinder;

[0015] S3: Pull the fabric by adjusting the components until the surface area of ​​the fabric is pulled to be greater than the surface area of ​​the bag;

[0016] S4: The fabric is clamped at both ends by a softening mechanism and heated to soften the fabric.

[0017] S5: Use a sewing machine to sew the fabric at both ends of the clamped structure. After the sewing is completed, stop the air pump to allow the fabric that was originally fixed by the clamping components to shrink due to its own elasticity.

[0018] S6: By rotating the base, the adjusting and fixing devices are rotated in sequence. The sewing machine is used to sew the fabric onto each side of the bag. Then, the operator separates the sewn fabric with the zipper in the middle of the bag as the horizontal line to complete the subsequent sewing work.

[0019] Compared with the prior art, this technical solution has the following advantages:

[0020] This invention can clamp the fabric by adjusting the fixing device, change the sewing end of the fabric and the sewing machine by rotating the base, and when clamping the fabric by adjusting the fixing device, the fabric can be pulled by the adjusting component to increase the surface area of ​​the fabric so that the fabric can wrap the bag. The softening mechanism can also heat the junction of the two ends of the fabric to make the fabric easier to sew. After sewing, the fabric can adhere tightly to the surface of the bag due to its own shrinkage, without the need for multiple operators to pull the fabric as in the prior art.

[0021] Furthermore, the pattern on the fabric can be adjusted before it is fixed to the bag to avoid deviations when it is sewn onto the bag. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 A schematic diagram for adjusting the fixing device 1.

[0025] Figure 3 This is a schematic diagram of the adjustment component 13.

[0026] Figure 4 To adjust the top view of component 13.

[0027] Figure 5 A top view of a partial structure for adjusting fixing device 1.

[0028] Figure 6 for Figure 5 A three-dimensional schematic diagram.

[0029] Figure 7 This is a partial half-section schematic diagram of the softening mechanism 14.

[0030] In the diagram: Adjustment and fixing device 1, support base 11, slide 111, slider 112, bracket 113, clamping assembly 12, connecting pipe 121, adjusting assembly 13, lead screw 131, first cylinder 132, lead screw slider 133, motor 134, fixing block 135, second cylinder 136, softening mechanism 14, sleeve 141, third cylinder 142, heating clamp 143, rotating shaft 144, rotating base 2, sewing machine 3. Detailed Implementation

[0031] Example 1

[0032] like Figure 1-7As shown, the sewing equipment for sewing the outer fabric of bags includes an adjusting and fixing device 1, a rotating base 2, and a sewing machine 3 for sewing the fabric. The adjusting and fixing device 1 is located on the rotating base 2, and the sewing machine 3 is located on the side of the adjusting and fixing device 1. In use, the fabric is first adsorbed on the inside of the adjusting and fixing device 1, and then the bag is placed inside the fabric. The bag is then clamped by the adjusting and fixing device 1, and the fabric is sewn onto the bag by the sewing machine 3. During the sewing process, the rotating base 2 can drive the adjusting and fixing device 1 and the bag to rotate, continuously changing the sewing end of the sewing machine 3.

[0033] Furthermore, the adjusting and fixing device 1 includes a support base 11, a clamping assembly 12, and an adjusting assembly 13. The clamping assembly 12 is symmetrically mounted on the adjusting assembly 13, and the adjusting assembly 13 is located on the support base 11. The support base 11 is rotatably mounted on the rotating base 2. The clamping assembly 12 is externally connected to an air pump through a connecting pipe 121 to create negative pressure. The clamping assembly 12 includes two adsorption parts, left and right, each with two adsorption plates arranged symmetrically vertically. The two adjacent adsorption plates face the bag. When in use, materials such as fabric and leather that need to be sewn can be placed in the clamping assembly 12, and the fabric will be adsorbed by the adsorption plates. The clamping assembly 12 can be adjusted to allow for individual adjustments. Each adsorption plate pulls the fabric that is adsorbed and fixed by it. If the two adjacent adsorption plates are moved away from each other, the fabric can be stretched laterally. If the length of the fabric needs to be extended, the upper adsorption plate can be moved upward by adjusting component 13. By increasing the distance between the upper and lower adsorption plates, the fixed fabric can be pulled, thus extending the length of the fabric. It is necessary to explain that the clamping component 12 uses an external air pump connected to the connecting pipe 121 to create negative pressure to adsorb the fabric. Different pressures and adsorption intensities can be obtained by changing different air pumps. Even so, it still has a certain positive effect. It can be understood that the selection of different air pumps should not be construed as a limitation of the present invention.

[0034] To ensure that fabrics of various sizes can be clamped and bags of various sizes can be placed, the length of each suction plate is longer than that of the bag.

[0035] Furthermore, to facilitate the adjustment and stretching of the surface area of ​​the eye-catching fabric, the adjustment assembly 13 includes a lead screw 131, a first cylinder 132, a lead screw slider 133, a motor 134, a fixing block 135, and a second cylinder 136. The lead screw slider 133 is disposed on each adsorption plate, and the lead screw sliders 133 on two adjacent adsorption plates are connected by the first cylinder 132. The lead screw 131 passes through each lead screw slider 133 with the long axis of the clamping assembly 12 as the direction. One end of the lead screw 131 is connected to the output shaft of the motor 134, and the other end is rotatably connected to the fixing block 135. Each motor 134 is fixed with a fixing block 135, and each fixing block 135 is fixed on the second cylinder 136. The second cylinder 136 is perpendicular to the fixing block 135. During adjustment, the distance between the two adjacent adsorption plates can be controlled by extending and retracting the output shaft of the first cylinder 132 to indirectly stretch the width of the fabric. When the adsorption plate adjacent to its output shaft is pushed outward by the first cylinder 132, the adsorption plate can be supported by the second cylinder 136. Since the support base 11 has a groove 111, a slider 112 is slidably disposed in the groove 111. The adsorption part on the left side is fixed to the support base 11 by the second cylinder 136, and the adsorption part on the right side is fixed to the slider 112 by the second cylinder 136. When the output shaft of the first cylinder 132 pushes the adsorption part or adsorption plate on the right side outward, the second cylinder 136 fixed to it can drive the slider 112 to slide along the direction of the groove 111.

[0036] In order to allow the upper adsorption plate to be moved only when the output shaft of the second cylinder 136 extends outward, each of the lower fixing blocks 135 is fixed to the outside of the second cylinder 136, and each of the upper fixing blocks 135 is fixed to the output shaft of the second cylinder 136. This allows the upper adsorption plates to be pushed upward when the output shaft of the second cylinder 136 extends outward.

[0037] Furthermore, in order to improve the stability of the adsorption plate during movement and to share the weight of the adsorption plate, each adsorption plate is provided with multiple screw sliders 133. The screw 131 passes through the multiple screw sliders 133 in sequence, and the screw 131 is connected to each screw slider 133 in a screw drive manner. The adsorption plate is fixed by the multiple screw sliders 133, and the two adjacent adsorption plates are connected by the first cylinder 132. Therefore, when the output shaft of the motor 134 rotates, the screw sliders 133 will not rotate but will move back and forth with the forward and reverse rotation of the screw 131. Thus, the fabric can be stretched by this movement method.

[0038] Example 2

[0039] In this embodiment, the support base 11 includes a bracket 113, on which a softening mechanism 14 is mounted. The softening mechanism 14 includes a sleeve 141, a third cylinder 142, and a heating clamp 143. The sleeve 141 is sleeved outside the third cylinder 142, and the heating clamp 143 is inserted into the sleeve 141 from the outside to the inside and connected to the output shaft of the third cylinder 142. The heating clamp 143 is externally powered for heating and includes upper and lower heating plates located on the upper side. The heating plate is oscillatingly connected to another heating plate via a rotating shaft 144. After the fabric is stretched by the adjusting component 13, the heating clamp 143 can be pushed to the fabric by the third cylinder 142. The two ends of the fabric are gathered by hand and placed into the heating clamp 143. The fabric is heated by the upper and lower heating plates, which softens the fabric and facilitates the subsequent sewing work. After sewing, the fabric will gradually regain its elasticity as the temperature gradually cools down, so that it can be tightly attached to the surface of the bag.

[0040] Example 3

[0041] This embodiment provides a method for using a sewing device for sewing the outer fabric of bags, the method including the following specific steps:

[0042] S1: Cut the fabric material to be sewn into long strips, and attach the two ends of the fabric to the upper and lower ends of the inner side of the clamping component 12 respectively. Use the air pump connected to the outside of the connecting pipe 121 to draw air to create negative pressure and use the clamping component 12 to adsorb and fix the fabric.

[0043] S2: The bag is placed into the clamping assembly 12 from one side of the fabric, and the suction plate located on the upper side is moved down to abut against the bag by each of the second cylinders 136.

[0044] S3: Pull the fabric by adjusting component 13 until the surface area of ​​the fabric is pulled to be greater than the surface area of ​​the bag;

[0045] S4: The fabric is clamped at both ends by the softening mechanism 14 and heated to soften the fabric at the same time;

[0046] S5: Use sewing machine 3 to sew the fabric at both ends of the clamped structure. After the sewing is completed, stop the air pump to allow the fabric that was originally fixed by the clamping component 12 to shrink due to its own elasticity.

[0047] S6: By rotating the base 2, the adjusting and fixing device 1 is rotated in sequence. The sewing machine 3 is used to sew the fabric onto each side of the bag. Then, the operator separates the sewn fabric with the zipper in the middle of the bag as the horizontal line to complete the subsequent sewing work.

[0048] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A sewing machine for sewing the outer fabric of bags, characterized in that: It includes an adjusting and fixing device (1), a rotating base (2), and a sewing machine (3) for sewing fabric. The adjusting and fixing device (1) is located on the rotating base (2), and the sewing machine (3) is located on the side of the adjusting and fixing device (1). The adjustment and fixing device (1) includes a support base (11), a clamping assembly (12), and an adjustment assembly (13). The clamping assembly (12) is symmetrically mounted on the adjustment assembly (13). The adjustment assembly (13) is located on the support base (11). The support base (11) is rotatably mounted on the rotating base (2). The clamping assembly (12) is connected to an external air pump through a connecting pipe (121) to create negative pressure. The clamping assembly (12) includes two adsorption parts, left and right. Each adsorption part has two adsorption plates arranged symmetrically up and down. The two adjacent adsorption plates are both facing the bag. The adjustment assembly (13) includes a lead screw (131), a first cylinder (132), a lead screw slider (133), a motor (134), a fixing block (135), and a second cylinder (136). The lead screw slider (133) is disposed on each adsorption plate. The lead screw sliders (133) on two adjacent adsorption plates are connected by the first cylinder (132). The lead screw (131) passes through each lead screw slider (133) with the long axis of the clamping assembly (12) as the direction. One end of the lead screw (131) is connected to the output shaft of the motor (134), and the other end is rotatably connected to the fixing block (135). Each motor (134) is fixed with a fixing block (135), and each fixing block (135) is fixed on the second cylinder (136). The second cylinder (136) is perpendicular to the fixed block (135); Each of the fixing blocks (135) located on the lower side is fixed to the outside of the second cylinder (136), while each of the fixing blocks (135) located on the upper side is fixed to the output shaft of the second cylinder (136) so as to push the respective adsorption plates located on the upper side upward by extending outward through the output shaft of the second cylinder (136).

2. The sewing equipment for sewing the outer fabric of bags according to claim 1, characterized in that: The support base (11) has a groove (111) and a slider (112) is slidably disposed in the groove (111). The adsorption part located on the left side is fixed to the support base (11) by the second cylinder (136), and the adsorption part located on the right side is fixed to the slider (112) by the second cylinder (136). When the first cylinder (132) outputs an axial outward to push up the adsorption part on the right side, the slider (112) can slide along the direction of the groove (111).

3. The sewing equipment for sewing the outer fabric of bags according to claim 2, characterized in that: Each of the adsorption plates is provided with multiple lead screw sliders (133), and the lead screw (131) passes through the multiple lead screw sliders (133) in sequence, and the lead screw (131) is driven by each lead screw slider (133).

4. The sewing equipment for sewing the outer fabric of bags according to claim 2, characterized in that: The support base (11) includes a bracket (113), and a softening mechanism (14) is mounted on the bracket (113). The softening mechanism (14) includes a sleeve (141), a third cylinder (142), and a heating clamp (143). The sleeve (141) is sleeved outside the third cylinder (142), and the heating clamp (143) is inserted into the sleeve (141) from the outside to the inside and connected to the output shaft of the third cylinder (142). The heating clamp (143) is heated by an external power source. The heating clamp (143) includes two heating plates, an upper and a lower one. The upper heating plate is oscillatingly connected to the other heating plate via a rotating shaft (144).

5. A method of using a sewing device for sewing the outer fabric of a bag, based on the sewing device for sewing the outer fabric of a bag as described in claim 3 or 4, characterized in that: The method of use includes the following specific steps: S1: Cut the fabric material to be sewn into long strips, and attach the two ends of the fabric to the upper and lower ends of the inner side of the clamping assembly (12). Use the air pump connected to the outside of the connecting pipe (121) to create negative pressure and use the clamping assembly (12) to adsorb and fix the fabric. S2: Place the bag into the clamping assembly (12) from one side of the fabric, and control the suction plate located on the upper side to move down to abut against the bag by controlling each second cylinder (136); S3: Pull the fabric by adjusting the component (13) until the surface area of ​​the fabric is pulled to be greater than the surface area of ​​the bag; S4: The fabric is clamped at both ends by the softening mechanism (14) and heated to soften the fabric at the same time; S5: Use a sewing machine (3) to sew the fabric at both ends of the clamped structure. After the sewing is completed, stop the air pump to allow the fabric that was originally fixed by the clamping component (12) to shrink with its own elasticity. S6: By rotating the base (2), the adjusting and fixing device (1) is rotated in sequence. The sewing machine (3) is used to sew the fabric onto each side of the bag. Then, the operator separates the sewn fabric with the zipper in the middle of the bag as the horizontal line to complete the subsequent sewing work.

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