Positioning mechanism of button sewing machine

Abstract

The utility model discloses a positioning mechanism of a button sewing machine. The positioning mechanism comprises an equipment body and a cloth positioning structure. According to the positioning mechanism of the button sewing machine, by arranging the cloth fixing assembly and the driving assembly, cloth is placed on the supporting plate, then the cloth is clamped on the supporting plate through the positioning component, and at the moment, the cloth is located on an operation table top on the button sewing machine; then, a driving motor can drive a straight gear and a straight rack to be in meshing transmission, so that a guide strip can be driven to move left and right along the operation table, a supporting plate and the cloth clamped on the supporting plate can be driven to move synchronously, and then the cloth can be driven to move to a second button sewing position on the cloth; therefore, the moving distance of the cloth every time is equal to the distance between two buttons, button sewing positions do not need to be drawn in advance, efficiency is improved, and meanwhile it is avoided that errors are generated when the buttons are sewn, and the quality of clothes is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to button sewing machine equipment technical field, concretely is a kind of positioning mechanism of button sewing machine. BACKGROUND

[0002] Button sewing machine is a kind of machine specially used for sewing button. It is mainly used for sewing button with regular shape and performing "sewing, dropping" sewing process operation, such as sewing trademark, label, cap cover etc. Its most common use scene is in clothing production, which is used for sewing button on various clothes. It is mainly composed of machine body, motor, transmission device, needle bar mechanism, feeding mechanism, presser foot mechanism etc. When working, button sewing machine drives transmission device by motor, so that needle bar mechanism moves up and down, cooperates with the collaborative work of feeding mechanism and presser foot mechanism, and accurately sews button on clothes or other fabrics. It can quickly, efficiently and relatively uniformly complete the work of sewing button, and is widely used in clothing manufacturing factory, hat factory, bag factory and other production places that need to sew a large number of buttons, and there are also some small button sewing machines for home use.

[0003] China authorized publication number CN 219157146 U discloses a button sewing machine, which comprises a workbench, a machine base fixedly installed on the top of the workbench, and two connecting plates fixedly connected to the bottom of one end of the machine base. The application is provided by cooperation between the connecting shaft, adjusting box, electric push rod, connecting seat and sewing needle, two mutually perpendicular cross plates are arranged in the inner cavity of the adjusting box, the connecting seat is fixedly connected to the electric push rod on the two cross plates, and the sewing needle is fixedly connected to the connecting seat. When one of the sewing needles is broken due to wear and tear during use, the user can rotate the adjusting box to rotate the other sewing needle to the upper side of the workbench for use, so as to avoid the need to disassemble and rethread the sewing needle for continuous use after the sewing needle is worn or broken during the button sewing process of the existing button sewing machine, thereby greatly improving the button sewing efficiency of the button sewing machine.

[0004] However, the device still has the following defects when in use: when the button sewing machine sews a row of buttons on clothes, it is necessary to mark the button sewing position on the clothes in advance according to the size of the clothes, and then the button sewing worker sews the buttons according to the marked button sewing position. Therefore, this method not only has low efficiency and takes a long time, but also is prone to errors in the position of the sewn buttons, which affects the quality of the clothes. In view of the above defects, we propose a positioning mechanism of button sewing machine. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a positioning mechanism of button sewing machine to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a positioning mechanism of button sewing machine, comprising:

[0007] The equipment body includes an operating table and a button sewing machine fixedly mounted on the upper surface of the operating table;

[0008] A cloth positioning structure, comprising a cloth fixing assembly disposed on the front of the operating table, and a driving assembly disposed below the operating table for driving the cloth fixing assembly to move;

[0009] The fabric fixing assembly includes a guide bar slidably mounted on the lower surface of the operating table, a mounting bracket fixedly mounted on the front surface of the guide bar, a threaded column rotatably mounted on the inner wall of the mounting bracket, two nut seats respectively threadedly connected to the surface of the threaded column, and a fabric fixing component arranged on the upper surface of the nut seat;

[0010] The driving assembly includes a motor fixedly mounted on the lower surface of the operating table, a spur gear fixedly mounted on the output end of the motor, and a spur rack fixedly mounted on the back of the guide bar.

[0011] Preferably, the spur gear is meshed with a spur rack for transmission.

[0012] Preferably, the surface of the threaded column is provided with two sections of threads with opposite rotation directions.

[0013] Preferably, a slider is fixedly mounted on the back of the nut seat, and a sliding groove for the slider to slide is provided on the front of the guide bar.

[0014] Preferably, the fabric fixing component includes support rods fixedly mounted on the upper surfaces of the two nut seats, a support plate fixedly mounted on the upper surface of the support rods, a fabric clamping component arranged on the upper surface of the support plate, and a positioning component arranged on the back side of the support plate for positioning the fabric.

[0015] Preferably, the cloth clamping component includes a support frame fixedly mounted on the upper surface of the support plate, a cylinder fixedly mounted on the upper surface of the support frame, and a clamping plate fixedly mounted on the telescopic end of the cylinder.

[0016] Preferably, the positioning component includes a guide groove provided on the inner wall of the support plate, a guide block slidably mounted on the inner wall of the guide groove, and a positioning plate fixedly mounted on the back of the guide block.

[0017] Preferably, a locking bolt is threadedly connected to the lower surface of the support plate, and the threaded end of the locking bolt extends to the inside of the guide groove.

[0018] The positioning mechanism of the button sewing machine places the cloth on a pallet by setting a cloth fixing component and a driving component, and then uses the positioning component to clamp the cloth on the pallet. At this time, the cloth is on the operating table of the button sewing machine. When the button sewing machine finishes sewing a button on the cloth, the driving motor can then drive the spur gear and the spur rack to engage and transmit, thereby driving the guide bar to move left and right along the operating table, thereby driving the pallet and the cloth clamped on the pallet to move synchronously, and then driving the cloth to move to the second button sewing position on the cloth. The driving component is used in conjunction with the cloth fixing component, so that the distance the cloth moves each time is the distance between two buttons, so there is no need to mark the button sewing position in advance, which not only improves efficiency, but also avoids errors in sewing buttons that affect the quality of clothes.

[0019] The positioning mechanism of the button sewing machine is provided with a threaded column and a nut seat. Rotating the threaded column can drive the two nut seats to move synchronously closer to or farther from each other, thereby driving the two supporting plates to move synchronously closer to or farther from each other. Therefore, the distance between the two supporting plates can be changed to adapt to clothing fabrics of different lengths.

[0020] The positioning mechanism of the button sewing machine is equipped with a positioning component to contact the end surface of the cloth with the positioning plates on the two support plates. The positioning plates are used as a reference to prevent the cloth from being placed tilted. The sliding guide block can drive the positioning plate to move, thereby changing the distance between the button sewing machine needle and the positioning plate. Therefore, the position of the positioning plate can be adjusted according to the distance from the end surface of the cloth to the button sewing, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the side sectional structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the cloth positioning component of the utility model;

[0024] Figure 4 This is a schematic diagram of the front cross-section structure of the cloth positioning component of the utility model;

[0025] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle.

[0026] In the figure: 10 operating table, 11 button sewing machine, 20 guide bar, 21 mounting frame, 22 threaded column, 23 nut seat, 24 slider, 25 slide, 30 motor, 31 spur gear, 32 spur rack, 40 support rod, 41 support plate, 42 support frame, 43 cylinder, 44 clamping plate, 50 guide block, 51 positioning plate, 52 locking bolt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-5 The utility model provides a technical solution: a positioning mechanism of a button sewing machine, comprising: an equipment body and a fabric positioning structure.

[0029] The device body includes an operating table 10 and a button sewing machine 11 fixedly installed on the upper surface of the operating table 10. The button sewing machine 11 is a conventional technology used for sewing buttons, so it is not described in detail.

[0030] The cloth positioning structure includes a cloth fixing assembly arranged on the front of the operating table 10, and a driving assembly arranged under the operating table 10 for driving the cloth fixing assembly to move. The cloth can be fixed by using the cloth fixing assembly.

[0031] The fabric fixing assembly includes a guide bar 20 slidably mounted on the lower surface of the operating table 10, a mounting bracket 21 fixedly mounted on the front of the guide bar 20, a threaded column 22 rotatably mounted on the inner wall of the mounting bracket 21, two nut seats 23 respectively threadedly connected to the surface of the threaded column 22, and a fabric fixing component arranged on the upper surface of the nut seat 23.

[0032] The surface of the threaded column 22 is provided with two sections of threads with opposite rotation directions. A slider 24 is fixedly installed on the back of the nut seat 23, and a slide groove 25 for the slider 24 to slide is provided on the front of the guide bar 20. The slider 24 slides on the inner wall of the slide groove 25, thereby guiding the movement trajectory of the nut seat 23.

[0033] One end of the threaded column 22 extends to the outside of the mounting bracket 21 and is provided with a knob. Turning the knob can drive the threaded column 22 to rotate. The threaded column 22 and the two nut seats 23 are spirally driven to drive the two nut seats 23 to move closer or farther away synchronously.

[0034] The fabric fixing component includes support rods 40 fixedly mounted on the upper surfaces of the two nut seats 23, a support plate 41 fixedly mounted on the upper surface of the support rods 40, a fabric clamping component arranged on the upper surface of the support plate 41, and a positioning component arranged on the back side of the support plate 41 for positioning the fabric.

[0035] The fabric is placed on the two support plates 41, and when the nut seat 23 moves, the support plates 41 and the nut seat 23 are fixed by the support rod 40, so the support plates 41 will follow the movement, so that the fabric of clothes of different lengths can be adapted by changing the distance between the two support plates 41.

[0036] The fabric clamping component includes a support frame 42 fixedly mounted on the upper surface of the support frame 41, a cylinder 43 fixedly mounted on the upper surface of the support frame 42, and a splint 44 fixedly mounted on the telescopic end of the cylinder 43. The cylinder 43 is connected to the external air supply system. When the fabric is on the support plate 41, the cylinder 43 is driven to drive the splint 44 to clamp the fabric on the support plate 41, thereby fixing the fabric. At this time, the needle of the button sewing machine 11 is directly above the fabric, and the fabric is on the operating table of the button sewing machine 11, so that the button sewing machine 11 can be used to sew buttons on the fabric.

[0037] The driving assembly includes a motor 30 fixedly mounted on the lower surface of the operating table 10, a spur gear 31 fixedly mounted on the output end of the motor 30, and a spur rack 32 fixedly mounted on the back of the guide bar 20. The spur gear 31 and the spur rack 32 are engaged for transmission.

[0038] When the button sewing machine 11 finishes sewing a button on the fabric, the driving motor 30 drives the spur gear 31 to rotate, and the spur gear 31 engages with the spur rack 32 to drive the guide bar 20 to move left and right along the operating table 10, thereby driving the support plate 41 and the fabric clamped on the support plate 41 to move synchronously, and then driving the fabric to move to the second button sewing position on the fabric.

[0039] After the fabric is fixed by the fabric fixing assembly, the driving assembly can be used to drive the fabric on the fabric fixing assembly to move, so that the distance the fabric moves each time is the distance between two buttons. This eliminates the need for operators to mark the button positions in advance, reduces the number of steps, and not only improves efficiency, but also avoids errors in sewing buttons that affect the quality of clothes.

[0040] The positioning component includes a guide groove provided on the inner wall of the support plate 41, a guide block 50 slidably mounted on the inner wall of the guide groove, and a positioning plate 51 fixedly mounted on the back of the guide block 50. The lower surface of the support plate 41 is threadedly connected with a locking bolt 52, and the threaded end of the locking bolt 52 extends to the inside of the guide groove. Tightening the locking bolt 52 can drive the locking bolt 52 to press against the guide block 50, thereby fixing the guide block 50, and making the end face of the cloth contact the positioning plates 51 on the two support plates 41. The positioning plate 51 is used as a reference to prevent the cloth from being placed tilted.

[0041] Loosening the locking bolt 52 can drive the guide block 50 to slide along the inner wall of the guide groove. After sliding the guide block 50, the positioning plate 51 can be driven to move, thereby changing the distance between the needle of the button sewing machine 11 and the positioning plate 51. Therefore, the position of the positioning plate 51 can be adjusted according to the distance from the end surface of the fabric to the button stitching, thereby improving the practicality of the device.

[0042] The organization operates as follows:

[0043] First, turn the knob to drive the threaded column 22 to rotate. The threaded column 22 and the two nut seats 23 are driven by screw transmission to drive the two nut seats 23 to move closer or farther away from each other synchronously. When the nut seats 23 move, the support plate 41 will move accordingly. Therefore, the distance between the two support plates 41 can be adjusted to an appropriate position according to the length of the fabric.

[0044] After loosening the locking bolt 52, the sliding guide block 50 can drive the positioning plate 51 to move, thereby changing the distance between the needle of the button sewing machine 11 and the positioning plate 51. Therefore, the position of the positioning plate 51 is adjusted according to the distance between the end surface of the fabric and the button stitching. After the position adjustment is completed, the locking bolt 52 is tightened, and then the end surface of the fabric is brought into contact with the positioning plates 51 on the two supporting plates 41. The positioning plates 51 are used as a reference to prevent the fabric from being tilted.

[0045] When the cloth is on the support plate 41, the driving cylinder 43 can drive the clamping plate 44 to clamp the cloth on the support plate 41, thereby fixing the cloth;

[0046] When the fabric is clamped, the needle of the button sewing machine 11 is directly above the fabric, and the fabric is on the operating table of the button sewing machine 11, so that buttons can be sewn on the fabric using the button sewing machine 11;

[0047] After the button sewing machine 11 has finished sewing a button on the fabric, the driving motor 30 drives the spur gear 31 to mesh with the spur rack 32, thereby driving the guide bar 20 to move to the left along the operating table 10, thereby driving the support plate 41 and the fabric clamped on the support plate 41 to move to the left synchronously. When the fabric moves to the second button sewing position on the fabric, the button sewing machine 11 can then be used to sew the second button sewing position on the fabric until a row of buttons is sewn on the fabric.

[0048] After the buttons on the cloth are sewn, the driving component is used to drive the support plate 41 to move to the right until it is reset, and then the cylinder 43 is driven to reset to separate the clamping plate 44 from the cloth, so that the cloth can be taken out and the buttons can be sewn again.

[0049] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning mechanism for a button sewing machine, characterized in that: include: The device body comprises an operating table (10) and a button sewing machine (11) fixedly mounted on the upper surface of the operating table (10); A cloth positioning structure, comprising a cloth fixing assembly arranged on the front of an operating table (10), and a driving assembly arranged below the operating table (10) for driving the cloth fixing assembly to move; The cloth fixing assembly comprises a guide bar (20) slidably mounted on the lower surface of the operating table (10), a mounting bracket (21) fixedly mounted on the front surface of the guide bar (20), a threaded column (22) rotatably mounted on the inner wall of the mounting bracket (21), two nut seats (23) respectively threadedly connected to the surface of the threaded column (22), and a cloth fixing component arranged on the upper surface of the nut seat (23); The driving assembly comprises a motor (30) fixedly mounted on the lower surface of the operating table (10), a spur gear (31) fixedly mounted on the output end of the motor (30), and a spur rack (32) fixedly mounted on the back of the guide bar (20).

2. The positioning mechanism of a button sewing machine according to claim 1, characterized in that: The spur gear (31) and the spur rack (32) are meshed for transmission.

3. The positioning mechanism of a button sewing machine according to claim 1, characterized in that: The surface of the threaded column (22) is provided with two sections of threads with opposite rotation directions.

4. The positioning mechanism of a button sewing machine according to claim 1, characterized in that: A slider (24) is fixedly mounted on the back of the nut seat (23), and a sliding groove (25) for the slider (24) to slide is provided on the front of the guide bar (20).

5. The positioning mechanism of a button sewing machine according to claim 1, characterized in that: The cloth fixing component comprises support rods (40) respectively fixedly mounted on the upper surfaces of the two nut seats (23), a support plate (41) fixedly mounted on the upper surface of the support rods (40), a cloth clamping component arranged on the upper surface of the support plate (41), and a positioning component arranged on the back of the support plate (41) for positioning the cloth.

6. The positioning mechanism of a button sewing machine according to claim 5, characterized in that: The cloth clamping component comprises a support frame (42) fixedly mounted on the upper surface of a support plate (41), a cylinder (43) fixedly mounted on the upper surface of the support frame (42), and a clamping plate (44) fixedly mounted on the telescopic end of the cylinder (43).

7. The positioning mechanism of a button sewing machine according to claim 5, characterized in that: The positioning component comprises a guide groove provided on the inner wall of the support plate (41), a guide block (50) slidably mounted on the inner wall of the guide groove, and a positioning plate (51) fixedly mounted on the back of the guide block (50).

8. The positioning mechanism of a button sewing machine according to claim 5, characterized in that: The lower surface of the support plate (41) is threadedly connected with a locking bolt (52), and the threaded end of the locking bolt (52) extends to the inside of the guide groove.

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