Rectangular cloth sewing equipment

Abstract

The invention provides rectangular cloth sewing equipment which comprises a main support and an auxiliary support located on the outer side of the middle of the long edge of the main support, an automatic sewing head is arranged on the auxiliary support, a workbench is arranged on the top face of the main support, and a left linear long-strip-shaped hole, a right linear long-strip-shaped hole and a middle circular-arc-shaped long-strip-shaped hole are formed in the workbench. A rectangular iron plate is arranged above the workbench, multiple layers of rectangular cloth are fixed to the top face of the rectangular iron plate after being stacked, the four corners of the rectangular iron plate are arc chamfers, positioning plates extend out of the top face of the front section and the top face of the rear section of the long edge side, close to the auxiliary support, of the workbench, and the rectangular iron plate abuts against the positioning plates to achieve positioning. The abutted and positioned side edge of the rectangular iron plate is aligned with the outer circumference of a needle head of the automatic sewing head; a linear driving device and an arc driving device are arranged in the main support and control the rectangular iron plate to conduct linear motion of four straight edges and arc motion of four arc angles respectively. According to the invention, the periphery of the rectangular cloth can be automatically and accurately sewn.

Description

Technical Field

[0001] The invention relates to the technical field of cloth processing, in particular to a rectangular cloth sewing device. Background Art

[0002] In order to meet the needs of large-scale and efficient production, clothing companies need to automate cutting and sewing for fabric processing. However, in the current automatic sewing processing technology, when cutting or sewing the edges of rectangular fabrics, it is usually done by manually rotating the rectangular fabrics. Manual positioning is inaccurate when rotating the rectangular fabrics, and the work efficiency is low. Alternatively, the rectangular fabrics are fixed on the workbench below so that the rectangular fabrics do not move, and the head part is integrated into an automated three-axis CNC motion, and the program is set to make the head move in straight and curved lines, similar to a multi-axis CNC machine tool. Although this method can achieve cutting or sewing the edges of rectangular fabrics, the manufacturing cost of the equipment itself is high, and its promotion is limited. Summary of the invention

[0003] In view of the above problems, the present invention aims to provide a rectangular cloth sewing device, which can accurately and automatically sew the periphery of the rectangular cloth with high working efficiency.

[0004] The technical solution of the present invention is a rectangular cloth sewing device, comprising a main bracket, a secondary bracket is arranged on the outer side of the middle part of the long side of the main bracket, and an automatic sewing head is arranged on the secondary bracket, characterized in that: a workbench is arranged on the top surface of the main bracket, and straight long holes are arranged in the left and right areas of the workbench, and a circular arc long hole is arranged between the two straight long holes, and the center of the circular arc long hole is biased to one side of the secondary bracket, and a rectangular iron plate is arranged above the workbench, and multiple layers of rectangular cloth are fixed on the top surface of the rectangular iron plate after being superimposed, and the four corners of the rectangular iron plate are circular arc chamfered, and positioning plates are extended from the front and rear sections of the top surface of the long side of the workbench close to the secondary bracket, and the rectangular iron plate is placed on the workbench and abuts against the positioning plate to achieve positioning, and the side of the rectangular iron plate after abutting against the positioning is aligned with the outer circumference of the needle of the automatic sewing head; two linear drive devices with linear motion are correspondingly arranged below the two straight long holes in the main bracket, and the An arc driving device that moves in an arc is correspondingly arranged below the arc-shaped long hole in the main bracket, a first cylinder is arranged on the top of the linear driving device, and the cylinder rod on the top of the first cylinder is connected to the first magnet, and a second cylinder is arranged on the top of the arc driving device, and the cylinder rod on the top of the second cylinder is connected to the second magnet; when sewing the cloth at the four straight sides of the rectangular iron plate, the first cylinder on the top of the linear driving device absorbs the rectangular iron plate through the first magnet for linear motion to cooperate with the needle of the automatic sewing head for linear sewing, and at this time, the second magnet is detached from the bottom surface of the rectangular iron plate; when sewing the cloth at the four arc corners of the rectangular iron plate, the second cylinder on the top of the arc driving device absorbs the rectangular iron plate through the second magnet for arc rotation to cooperate with the needle of the automatic sewing head for 90-degree arc sewing, and the arc center of the arc corner point of the rectangular iron plate close to the needle coincides with the arc center of the arc-shaped long hole during the rotation, and at this time, the first magnet is detached from the bottom surface of the rectangular iron plate.

[0005] Preferably, the linear drive device includes a long fixed plate connected to the main bracket, and a linear rack and a linear slide rail are arranged on the top surface of the long fixed plate in parallel and at intervals along the length direction. A first connecting plate is provided on the linear slide rail, and the first connecting plate is slidably connected to the linear slide rail through a slider, and a first cylinder and a first motor are connected to the first connecting plate. A first reduction gear is connected to the bottom of the first motor, and the first reduction gear is meshed with the linear rack. When the first motor is started, the first reduction gear is meshed and rotated relative to the linear rack to realize the forward and backward sliding of the first connecting plate relative to the linear slide rail. The first cylinder on the first connecting plate absorbs the rectangular iron plate through the first magnet to drive the rectangular iron plate forward or backward. During the linear motion, the first magnet is located in the linear long hole of the workbench to realize straight-edge stitching of the rectangular cloth.

[0006] Preferably, the number of the first cylinders on the first connecting plate is at least two, which are arranged at intervals along the length direction, and all the first cylinders are synchronously controlled.

[0007] Preferably, the arc driving device includes an arc-shaped fixing plate connected to the main bracket, the top surface of the arc-shaped fixing plate is concentrically provided with an arc-shaped rack and an arc-shaped slide rail, the arc-shaped slide rail is provided with a second connecting plate, the second connecting plate is rollingly connected to both sides of the arc-shaped slide rail through a plurality of rollers, the second connecting plate is connected to a second cylinder and a second motor, the bottom of the second motor is connected to a second reduction gear, the second reduction gear is meshed with the arc-shaped rack, when the second motor is started, the second reduction gear is meshed and rotated relative to the arc-shaped rack to realize the second connecting plate to slide in an arc shape relative to the arc-shaped slide rail, the second cylinder on the second connecting plate absorbs the rectangular iron plate through the second magnet to drive the rectangular iron plate to rotate in an arc-shaped plane, during the plane rotation process, the second magnet is located in the arc-shaped long strip hole of the workbench, so as to realize the arc-shaped stitching at the junction of two straight edges of the rectangular cloth.

[0008] Preferably, the number of the second cylinders on the second connecting plate is at least two, which are arranged at intervals along the arc direction, and all the second cylinders are synchronously controlled.

[0009] Preferably, the rectangular cloth is fixed on the top surface of the rectangular iron plate by magnets.

[0010] The invention can accurately and automatically sew the periphery of rectangular cloth, and has high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention in the first state; Figure 2 for Figure 1 Schematic diagram of the structure after removing the workbench and rectangular iron plate; Figure 3 It is a schematic diagram of the structure of the present invention in the second state; Figure 4 for Figure 3 Schematic diagram of the structure after removing the workbench and rectangular iron plate; Figure 5 It is a structural schematic diagram of the third state of the present invention; Figure 6 for Figure 5 Schematic diagram of the structure after removing the workbench and rectangular iron plate; Figure 7 It is a structural schematic diagram of the linear drive device in the present invention; Figure 8 It is a structural schematic diagram of the circular arc driving device in the present invention; Among them: 1—main bracket; 2—auxiliary bracket; 3—automatic sewing head; 4—workbench; 41—straight long hole; 42—arc-shaped long hole; 43—positioning plate; 5—rectangular iron plate; 6—linear drive device; 61—long strip fixing plate; 62—linear rack; 63—linear slide rail; 64—first connecting plate; 65—first motor; 66—first reduction gear; 7—arc drive device; 71—arc-shaped fixing plate; 72—arc-shaped rack; 73—arc-shaped slide rail; 74—second connecting plate; 75—second motor; 76—second reduction gear; 77—roller; 8—first cylinder; 9—first magnet; 10—second cylinder; 11—second magnet. DETAILED DESCRIPTION

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] like Figures 1 to 8As shown, the present invention provides a rectangular cloth sewing device, comprising a main bracket 1, a sub-bracket 2 is arranged on the outer side of the middle of the long side of the main bracket 1, and an automatic sewing head 3 is arranged on the sub-bracket 2, characterized in that: a workbench 4 is arranged on the top surface of the main bracket 1, and a straight long hole 41 is arranged in the left and right areas of the workbench 4, and an arc-shaped long hole 42 is arranged between the two straight long holes 41, and the center of the arc-shaped long hole 42 is biased to one side of the sub-bracket 2, and a rectangular iron plate is arranged above the workbench 4. 5. Multiple layers of rectangular fabrics are stacked and fixed on the top surface of a rectangular iron plate 5. The four corners of the rectangular iron plate 5 are chamfered in an arc shape. Positioning plates 43 are extended from the top surfaces of the front and rear sections of the long sides of the workbench 4 close to the auxiliary bracket 2. The rectangular iron plate 5 is placed on the workbench 4 and abuts against the positioning plates 43 to achieve positioning. The side of the rectangular iron plate 5 after abutment is aligned with the outer circumference of the needle of the automatic sewing head 3; two linear drive devices 6 with linear motion are correspondingly arranged below the two linear long holes 41 in the main bracket 1. A circular arc driving device 7 is provided in the main bracket 1 below the circular arc-shaped long hole 42, and a first cylinder 8 is provided on the top of the linear driving device 6, and a first magnet 9 is connected to the cylinder rod on the top of the first cylinder 8. A second cylinder 10 is provided on the top of the circular arc driving device 7, and a second magnet 11 is connected to the cylinder rod on the top of the second cylinder 10. When sewing the cloth at the four straight sides of the rectangular iron plate 5, the first cylinder 8 on the top of the linear driving device 6 absorbs the rectangular iron plate 5 through the first magnet 9 to move linearly. In cooperation with the needle of the automatic sewing head 3, straight line sewing is performed, and at this time, the second magnet 11 is separated from the bottom surface of the rectangular iron plate 5; when sewing the cloth at the four arc corners of the rectangular iron plate 5, the second cylinder 10 on the top of the arc driving device 7 adsorbs the rectangular iron plate 5 through the second magnet 11 and rotates the arc to cooperate with the needle of the automatic sewing head 3 to perform 90-degree arc sewing. The arc center of the arc corner point of the rectangular iron plate 5 close to the needle coincides with the arc center of the arc-shaped long hole 42 during the rotation process, and at this time, the first magnet 9 is separated from the bottom surface of the rectangular iron plate 5.

[0014] In the above scheme, the linear drive device 6 includes a long fixed plate 61 connected to the main bracket 1, and a linear rack 62 and a linear slide rail 63 are arranged in parallel and spaced relation along the length direction on the top surface of the long fixed plate 61, and a first connecting plate 64 is arranged on the linear slide rail 63, and the first connecting plate 64 is slidably connected to the linear slide rail 63 through a slider, and the first connecting plate 64 is connected to the first cylinder 8 and the first motor 65, and the bottom of the first motor 65 is connected to the first reduction gear 66, and the first reduction gear 66 is meshed with the linear rack 62. When the first motor 65 is started, the first reduction gear 66 is meshed and rotated relative to the linear rack 62 to realize the forward and backward sliding of the first connecting plate 64 relative to the linear slide rail 63, and the first cylinder 8 on the first connecting plate 64 attracts the rectangular iron plate 5 through the first magnet 9 to drive the rectangular iron plate 5 forward or backward, and the first magnet 9 is located in the linear long hole 41 of the workbench 4 during the linear motion, so as to realize the straight edge stitching of the rectangular cloth.

[0015] Specifically, the number of the first cylinders 8 on the first connecting plate 64 is at least two, which are arranged at intervals along the length direction, and all the first cylinders 8 are synchronously controlled.

[0016] In the above scheme, the arc driving device 7 includes an arc-shaped fixing plate 71 connected to the main bracket 1, and the top surface of the arc-shaped fixing plate 71 is concentrically provided with an arc-shaped rack 72 and an arc-shaped slide rail 73, and the arc-shaped slide rail 73 is provided with a second connecting plate 74, and the second connecting plate 74 is rollingly connected to both sides of the arc-shaped slide rail 73 through a plurality of rollers 77, and the second connecting plate 74 is connected to the second cylinder 10 and the second motor 75, and the bottom of the second motor 75 is connected to the second reduction gear 76, and the The second reduction gear 76 is meshed with the arc-shaped rack 72. When the second motor 75 is started, the second reduction gear 76 is meshed and rotated relative to the arc-shaped rack 72 to realize the second connecting plate 74 sliding in an arc shape relative to the arc-shaped slide rail 73. The second cylinder 10 on the second connecting plate 74 attracts the rectangular iron plate 5 through the second magnet 11 to drive the rectangular iron plate 5 to rotate in an arc-shaped plane. During the plane rotation, the second magnet 11 is located in the arc-shaped long strip hole 42 of the workbench 4, thereby realizing the arc-shaped stitching at the intersection of the two straight sides of the rectangular cloth.

[0017] Specifically, the number of the second cylinders 10 on the second connecting plate 74 is at least two, which are arranged at intervals along the arc direction, and all the second cylinders 10 are synchronously controlled.

[0018] Furthermore, the rectangular cloth is fixed on the top surface of the rectangular iron plate 5 by magnets.

[0019] The structure of the automatic sewing head 3 is the structure of the existing sewing machine head, including a series of structures such as a needle and a needle hole below, which will not be described in detail here.

[0020] In the first step, when sewing the straight edge of the rectangular cloth, the cylinder rod of the first cylinder 8 extends upward and absorbs the rectangular iron plate 5 through the first magnet 9, controls the first motor 65 to rotate, drives the first reduction gear 66 to engage with the linear rack 62, and realizes the sliding of the first connecting plate 64 relative to the linear slide rail 63. During this process, the second magnet 11 and the rectangular iron plate 5 are in a separated state, and the rectangular cloth moves in a straight line. Under the guidance of the positioning plate 43, the outer side of the rectangular iron plate 5 always fits the needle of the automatic sewing head 3 and maintains linear motion. The rectangular cloth is in a linear sewing state under the continuous operation of the needle of the automatic sewing head 3 until it reaches the rounded corner of the rectangular iron plate 5, and then the first motor 65 stops moving, and the cylinder rod of the first cylinder 8 retracts downward to make the first magnet 9 separate from the rectangular iron plate 5.

[0021] In the second step, when the rounded corners of the rectangular cloth are sewn, the cylinder rod of the second cylinder 10 extends upward and absorbs the rectangular iron plate 5 through the second magnet 11, controls the second motor 75 to rotate, drives the second reduction gear 76 to mesh with the arc-shaped rack 72, realizes the planar rotation of the second connecting plate 74 relative to the arc-shaped slide rail 73, and the rectangular cloth moves in an arc. Since the arc center of the arc corner point of the rectangular iron plate 5 close to the needle coincides with the arc center of the arc-shaped long strip hole 42 during the rotation process, the rectangular iron plate 5 is rotated by the second motor 75. The driving structure of the automatic sewing head 3 and the circular arc slide rail 73 below presents a smooth circular arc corner, so that the distance between the needle and the side of the rectangular iron plate 5 remains unchanged during the corner turning process. The rectangular cloth is in an arc stitching state under the continuous operation of the needle of the automatic sewing head 3 until it passes through the rounded corner of the rectangular iron plate 5. During this process, the first motor 65 rotates in the opposite direction to drive the first connecting plate 64 to reset, and then the second motor 75 stops moving, and the cylinder rod of the second cylinder 10 retracts downward to make the second magnet 11 separate from the rectangular iron plate 5.

[0022] Then the rectangular cloth continues the next straight edge sewing process, which is the same as the first step in principle and process. During this process, the second motor 75 rotates in the opposite direction to drive the second connecting plate 74 to reset.

[0023] This process repeats itself to achieve uniform and precise sewing of the four straight sides and four arc-shaped corners of the rectangular fabric.

[0024] The above description is only a preferred embodiment of the present invention and does not impose any form of limitation on the invention. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A rectangular cloth sewing device, comprising a main support (1), a secondary support (2) being arranged outside the middle of a long side of the main support (1), and an automatic sewing head (3) being arranged on the secondary support (2), characterized in that: A workbench (4) is provided on the top surface of the main support (1), and a straight long hole (41) is provided on the left and right areas of the workbench (4), and a circular arc long hole (42) is provided between the two straight long holes (41), and the center of the circular arc long hole (42) is biased toward one side of the auxiliary support (2). A rectangular iron plate (5) is provided above the workbench (4), and multiple layers of rectangular fabrics are stacked and fixed on the top surface of the rectangular iron plate (5), and the four corners of the rectangular iron plate (5) are circular arc chamfered. The workbench (4) is close to the auxiliary support (2 ) has two top surfaces of the front and rear sections of the long sides thereof extending therefrom, and the rectangular iron plate (5) is placed on the workbench (4) and abuts against the positioning plate (43) to achieve positioning, and the side of the rectangular iron plate (5) after abutting against the positioning plate is aligned with the outer circumference of the needle of the automatic sewing head (3); two linear drive devices (6) for linear motion are correspondingly arranged below the two linear long holes (41) in the main bracket (1), and a circular arc drive device (7) for circular arc motion is correspondingly arranged below the circular arc long hole (42) in the main bracket (1). ), a first cylinder (8) is arranged on the top of the linear drive device (6), a cylinder rod on the top of the first cylinder (8) is connected to a first magnet (9), a second cylinder (10) is arranged on the top of the arc drive device (7), and a cylinder rod on the top of the second cylinder (10) is connected to a second magnet (11); when sewing fabric at the four straight sides of the rectangular iron plate (5), the first cylinder (8) on the top of the linear drive device (6) absorbs the rectangular iron plate (5) through the first magnet (9) to move linearly, and the needle of the automatic sewing head (3) performs linear sewing. During sewing, the second magnet (11) is separated from the bottom surface of the rectangular iron plate (5); when sewing the fabric at the four arc corners of the rectangular iron plate (5), the second cylinder (10) at the top of the arc driving device (7) adsorbs the rectangular iron plate (5) through the second magnet (11) and rotates the arc to cooperate with the needle of the automatic sewing head (3) to perform 90-degree arc sewing. During the rotation, the arc center of the arc corner point of the rectangular iron plate (5) close to the needle coincides with the arc center of the arc-shaped long strip hole (42), and at this time, the first magnet (9) is separated from the bottom surface of the rectangular iron plate (5).

2. A rectangular cloth sewing device according to claim 1, characterized in that: The linear drive device (6) comprises a long fixed plate (61) connected to the main support (1); a linear rack (62) and a linear slide rail (63) are arranged in parallel and spaced relation along the length direction on the top surface of the long fixed plate (61); a first connecting plate (64) is provided on the linear slide rail (63); the first connecting plate (64) is slidably connected to the linear slide rail (63) via a slider; a first cylinder (8) and a first motor (65) are connected to the first connecting plate (64); and a first reduction gear (66) is connected to the bottom of the first motor (65). The first reduction gear (66) meshes with the linear rack (62). When the first motor (65) is started, the first reduction gear (66) meshes and rotates relative to the linear rack (62) to achieve the forward and backward sliding of the first connecting plate (64) relative to the linear slide rail (63). The first cylinder (8) on the first connecting plate (64) attracts the rectangular iron plate (5) through the first magnet (9) to drive the rectangular iron plate (5) forward or backward. During the linear motion, the first magnet (9) is located in the linear long hole (41) of the workbench (4), thereby achieving straight-edge sewing of the rectangular cloth.

3. A rectangular cloth sewing device according to claim 2, characterized in that: The number of the first cylinders (8) on the first connecting plate (64) is at least two, which are arranged at intervals along the length direction, and all the first cylinders (8) are controlled synchronously.

4. A rectangular cloth sewing device according to claim 1, characterized in that: The arc driving device (7) comprises an arc-shaped fixing plate (71) connected to the main support (1); an arc-shaped rack (72) and an arc-shaped slide rail (73) are concentrically arranged on the top surface of the arc-shaped fixing plate (71); a second connecting plate (74) is arranged on the arc-shaped slide rail (73); the second connecting plate (74) is rollingly connected to two sides of the arc-shaped slide rail (73) via a plurality of rollers (77); a second cylinder (10) and a second motor (75) are connected to the second connecting plate (74); a second reduction gear (76) is connected to the bottom of the second motor (75); The reduction gear (76) meshes with the arc-shaped rack (72). When the second motor (75) is started, the second reduction gear (76) meshes and rotates relative to the arc-shaped rack (72), so that the second connecting plate (74) slides in an arc shape relative to the arc-shaped slide rail (73). The second cylinder (10) on the second connecting plate (74) attracts the rectangular iron plate (5) through the second magnet (11) to drive the rectangular iron plate (5) to rotate in an arc-shaped plane. During the plane rotation, the second magnet (11) is located in the arc-shaped long strip hole (42) of the workbench (4), so that the arc-shaped stitching at the intersection of the two straight sides of the rectangular cloth is achieved.

5. A rectangular cloth sewing device according to claim 4, characterized in that: The number of the second cylinders (10) on the second connecting plate (74) is at least two, which are arranged at intervals along the arc direction, and all the second cylinders (10) are controlled synchronously.

6. A rectangular cloth sewing device according to claim 1, characterized in that: The rectangular cloth is fixed on the top surface of the rectangular iron plate (5) by magnet adsorption.

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