Automatic winding device

Abstract

An automatic winding device comprises a horizontal mounting plate and a vertical mounting plate, a base plate and a vertical rod are mounted on the right side of the upper surface of the horizontal mounting plate, an unwinding arm is mounted on the base plate, an L-shaped wire conduit is arranged above the vertical rod, and the right end of the L-shaped wire conduit is bent downwards and right faces the unwinding arm up and down; a wire guide plate is fixedly installed at the left end of the upper portion of the vertical installation plate, a wire guide pipe is installed on the left side face, close to the front portion, of the wire guide plate, a first threading hole and a second threading hole are formed in the rear portion of the left side face of the wire guide plate, and a third threading hole and a fourth threading hole are formed in the middle and the right side of the wire guide plate respectively. The left end of the front side surface of the vertical mounting plate is fixedly provided with a wire clamp; the lower end of the wire conduit corresponds to the wire clamp up and down; and a winder is mounted in the middle of the front side surface of the vertical mounting plate. According to the utility model, the defects in the prior art are overcome, the tension of yarns can be effectively ensured, the winding uniformity and continuity are ensured, and the influence on the winding work caused by the scattered yarns is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to an automatic winding device. Background Art

[0002] With the development of sewing machinery and equipment, the technical requirements for winding in sewing auxiliary machinery are getting higher and higher. When sewing, it is necessary to wind the thread around the bobbin and place the bobbin in the bobbin case to assist in completing the target requirements of the sewing operation. In order to improve the winding efficiency, a winder is added to the upper part of the machine, which can realize the winding function while working.

[0003] However, the existing winding mechanism is easy to entangle with the mechanical parts in contact during the winding process, causing the yarn to spread and affect the winding work. In addition, it is easy to cause the wire to break due to the unstable and fluctuating winding speed. Summary of the invention

[0004] In view of the deficiencies of the prior art, the utility model provides an automatic winding device, which overcomes the deficiencies of the prior art and has a reasonable design, can effectively ensure the tension of the yarn to ensure the uniformity and continuity of the winding, and avoids the influence of the yarn unravelling on the winding work.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] An automatic wire winding device, comprising a horizontal mounting plate and a vertical mounting plate, wherein the horizontal mounting plate and the vertical mounting plate are arranged in an L-shaped integrated structure, a wire support mechanism and a vertical rod are installed on the right side of the upper surface of the horizontal mounting plate, an L-shaped wire tube is arranged above the vertical rod, and the right end of the L-shaped wire tube is bent downward and arranged vertically opposite to the wire support mechanism;

[0007] A wire guide plate is fixedly installed on the upper left end portion of the vertical mounting plate, a wire tube is installed on the front left side of the wire guide plate, a first wire threading hole and a second wire threading hole are respectively opened at the rear of the left side of the wire guide plate, and a third wire threading hole and a fourth wire threading hole are respectively opened in the middle and on the right side of the wire guide plate; a wire clamp is fixedly installed on the left end of the front side surface of the vertical mounting plate, and the lower end of the wire tube corresponds to the wire clamp up and down; a wire winder is installed in the middle of the front side surface of the vertical mounting plate.

[0008] Preferably, the wire clamp includes a threaded rod and an adjusting cover, one end of the threaded rod is fixedly mounted on the front side of the vertical mounting plate, and the first wire clamping piece, the second wire clamping piece, the wire pressing piece and the adjusting cover are sequentially sleeved on the threaded rod, the first wire clamping piece is arranged to fit the front side of the vertical mounting plate, the other end of the threaded rod is provided with a strip groove along the axial direction, a Japanese-shaped hole is provided in the middle of the wire pressing piece, the wire pressing piece is movably inserted in the strip groove through the Japanese-shaped hole, the adjusting cover is threadedly connected to the threaded rod through the threaded hole, and a wire clamping spring is provided between the wire pressing piece and the adjusting cover.

[0009] Preferably, a first gasket is provided between the first wire clamping piece and the vertical mounting plate, and a second gasket is provided between the second wire clamping piece and the wire pressing piece.

[0010] Preferably, a cutting plate is sleeved on the winding shaft of the winder, and the cutting plate is fixed by a fixing member.

[0011] Preferably, the wire support mechanism includes a chassis and a unwinding arm, the chassis is installed on the right side of the upper surface of the horizontal mounting plate, and the unwinding arm is vertically arranged above the chassis; the downwardly bent section at the right end of the L-shaped wire tube is directly opposite to the unwinding arm.

[0012] Preferably, a limiting pressure ring is movably sleeved on the unwinding arm.

[0013] The utility model provides an automatic winding device. It has the following beneficial effects: by setting an L-shaped wire tube, and making the right end of the L-shaped wire tube bend downward and face the unwinding arm up and down, the yarn head of the wire roll can be directly led upward, so as to ensure that the unwinding of the wire roll can be vertically upward, so as to effectively avoid the problem of excessive stretching and breaking of the yarn when it is led out compared with the side lead-in method in the prior art. In addition, by passing the yarn through the first threading hole and the second threading hole of the wire guide plate in a wavy manner, a certain tension can be given to the led-out yarn before the clamp to ensure the stability of the stitch; in addition, the clamping force of the yarn can be adjusted by the clamp, so that the appropriate clamping force can be given to yarns of different thicknesses to meet the different tension requirements of different yarns. Afterwards, before connecting to the bobbin, the yarn is passed through the third threading hole and the fourth threading hole in a wavy manner, so as to further ensure the tension of the yarn, ensure the uniformity and continuity of the winding, and avoid the influence of the yarn spreading on the winding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings required for describing the prior art are briefly introduced below.

[0015] Figure 1 A front structural schematic diagram of the utility model;

[0016] Figure 2 A schematic diagram of the back structure of the utility model;

[0017] Figure 3 A schematic diagram of a partial structure of the utility model;

[0018] Figure 4 A schematic structural diagram of the wire clamp in the utility model;

[0019] Figure 5 A schematic structural diagram of a wire winder in the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Horizontal mounting plate; 2. Vertical mounting plate; 3. Chassis; 4. Vertical rod; 5. Unwinding arm; 6. L-shaped wire tube; 7. Wire guide plate; 8. Wire tube; 9. First threading hole; 10. Second threading hole; 11. Third threading hole; 12. Fourth threading hole; 13. Wire clamp; 14. Wire winder; 15. Cutting plate; 16. Fixing piece; 17. Limiting pressure ring; 131. Threaded rod; 132. Adjusting cover; 133. First wire clamping piece; 134. Second wire clamping piece; 135. Wire pressing piece; 136. Strip notch; 137. Wire clamping spring; 138. First washer; 139. Second washer. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.

[0023] Embodiment 1, as Figure 1-5 As shown, an automatic winding device includes a horizontal mounting plate 1 and a vertical mounting plate 2, the horizontal mounting plate 1 and the vertical mounting plate 2 are arranged in an L-shaped integrated structure, a wire support mechanism and a vertical rod 4 are installed on the right side of the upper surface of the horizontal mounting plate 1, wherein the wire support mechanism includes a chassis 3 and an unwinding arm 5, the chassis 3 is installed on the right side of the upper surface of the horizontal mounting plate 1, and the unwinding arm 5 is vertically arranged in the middle of the upper surface of the chassis 3; an L-shaped wire tube 6 is arranged above the vertical rod 4, the right end of the L-shaped wire tube 6 is bent downward and arranged vertically opposite to the unwinding arm 5;

[0024] A wire guide plate 7 is fixedly installed at the upper left end of the vertical mounting plate 2, a wire tube 8 is installed at the front of the left side of the wire guide plate 7, a first threading hole 9 and a second threading hole 10 are respectively opened at the rear of the left side of the wire guide plate 7, and a third threading hole 11 and a fourth threading hole 12 are respectively opened in the middle and right of the wire guide plate 7; a wire clamp 13 is fixedly installed at the left end of the front side of the vertical mounting plate 2, and the lower end of the wire tube 8 corresponds to the wire clamp 13 up and down; a wire winder 14 is installed in the middle of the front side of the vertical mounting plate 2. In this embodiment, the wire winder 14 adopts the existing technology, so its specific structure is not repeated; specifically, this embodiment adopts the specific structure described by the winding device 8 in the application number: 200910150414.1, and the name: sewing machine and winding device for such sewing machine.

[0025] Working principle:

[0026] When in use, first install the empty bobbin onto the winding shaft of the winder 14, then place the wire roll onto the chassis 3, and radially insert and position the wire roll through the unwinding arm 5, so that the yarn head of the wire roll first passes through the L-shaped wire tube 6 just above the unwinding arm 5, and is led out from the left end of the L-shaped wire tube 6, and then passes through the first threading hole 9 and the second threading hole 10 of the wire guide plate 7 in a wavy manner, as shown in the figure, first pass through the first threading hole 9 located at the rear side of the wire guide plate 7 from top to bottom, and then pass through the second threading hole 10 located in the middle of the wire guide plate 7 from bottom to top; then guide the yarn downward from the top The yarn passes through the wire tube 8, and then is guided counterclockwise to the outer periphery of the clamp 13, and a certain clamping force is applied to the yarn through the clamp 13 to further ensure that the yarn has a certain tension; then the yarn passes through the third threading hole 11 and the fourth threading hole 12 of the guide plate 7 in a wavy manner, specifically, first passes through the third threading hole 11 from bottom to top, and then passes through the fourth threading hole 12 from top to bottom; then the yarn is guided and wound into the bobbin on the winder 14, so that the winder 14 can be driven to operate, and the bobbin can be driven to rotate by the rotation of the winding shaft, and then the bobbin winding effect is achieved. When the winding is full, the winder 14 automatically disengages the micro switch, and the winding motor of the winder 14 is powered off to complete the winding.

[0027] Through the above-mentioned winding device, firstly, by setting an L-shaped wire tube 6, and making the right end of the L-shaped wire tube 6 bend downward and face the unwinding arm 5 vertically, the yarn head of the wire roll can be directly led upward, so as to ensure that the unwinding of the wire roll can be vertically upward, and compared with the side lead-in method in the prior art, the problem of excessive stretching and breaking of the yarn during the lead-out can be effectively avoided. In addition, by passing the yarn through the first threading hole 9 and the second threading hole 10 of the wire guide plate 7 in a wavy manner, a certain tension can be given to the led-out yarn before the clamp 13 to ensure the stability of the stitch; in addition, the clamping force of the yarn can be adjusted by the clamp 13, so that the appropriate clamping force can be given to yarns of different thicknesses to meet the different tension requirements of different yarns. Afterwards, before being connected to the bobbin, the yarn is passed through the third threading hole 11 and the fourth threading hole 12 in a wavy manner, thereby further ensuring the tension of the yarn, ensuring the uniformity and continuity of the winding, and avoiding the influence of the yarn spreading on the winding work.

[0028] Embodiment 2, as a further preferred embodiment of embodiment 1, the wire clamp 13 includes a threaded rod 131 and an adjusting cover 132, one end of the threaded rod 131 is fixedly mounted on the front side of the vertical mounting plate 2, and the threaded rod 131 is sequentially sleeved with a first wire clamping piece 133, a second wire clamping piece 134, a wire pressing piece 135 and an adjusting cover 132, the first wire clamping piece 133 is arranged in contact with the front side of the vertical mounting plate 2, and the other end of the threaded rod 131 is provided with a strip notch 136 along the axial direction. A Japanese-shaped hole is provided in the middle of the wire pressing piece 135, and the wire pressing piece 135 is movably inserted in the strip groove 136 through the Japanese-shaped hole. The adjusting cover 132 is threadedly connected with the threaded rod 131 through a threaded hole. A clamping spring 137 is provided between the wire pressing piece 135 and the adjusting cover 132. The clamping spring 137 applies an elastic force to the wire pressing piece 135 in the direction of the first clamping piece 133, so that the first clamping piece 133 and the second clamping piece 134 can cooperate to clamp the yarn.

[0029] Therefore, in response to the requirements of yarns of different thicknesses and different tensions, the adjusting cover 132 can be rotated to drive the wire pressing piece 135 to move axially along the threaded rod 131, and then the elastic force of the wire clamping spring 137 can be controlled, and then the clamping force between the first wire clamping piece 133 and the second wire clamping piece 134 can be controlled, thereby meeting the different tension requirements of yarns of different thicknesses.

[0030] Embodiment 3, as a further preferred solution of embodiment 2, a first washer 138 is provided between the first clamping piece 133 and the vertical mounting plate 2, and a second washer 139 is provided between the second clamping piece 134 and the pressing piece 135. The first washer 138 is used to achieve a soft contact effect between the first clamping piece 133 and the vertical mounting plate 2 to avoid damage caused by hard contact between the first clamping piece 133 and the vertical mounting plate 2; the second washer 139 is used to achieve a soft contact effect between the second clamping piece 134 and the pressing piece 135.

[0031] Embodiment 4, as a further preferred embodiment of embodiment 2, a cutting plate 15 is sleeved on the winding shaft of the winder 14, and the cutting plate 15 is fixed by a fixing member 16. Therefore, when the bobbin is fully wound, the yarn can be directly cut off by the cutting plate 15, so that the bobbin can be quickly removed from the winder 14, thereby effectively improving production efficiency.

[0032] Embodiment 5, as a further preferred embodiment of embodiment 2, a limit pressure ring 17 is movably sleeved on the unwinding arm 5. The limit pressure ring 17 can limit the axial direction of the wire coil to prevent the wire coil from moving upward along the unwinding arm 5.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic winding device, characterized in that: The invention comprises a horizontal mounting plate (1) and a vertical mounting plate (2), wherein the horizontal mounting plate (1) and the vertical mounting plate (2) are arranged in an L-shaped integrated structure, a wire support mechanism and a vertical rod (4) are installed on the right side of the upper surface of the horizontal mounting plate (1), an L-shaped wire tube (6) is arranged above the vertical rod (4), and the right end of the L-shaped wire tube (6) is bent downward and arranged vertically opposite to the wire support mechanism; A wire guide plate (7) is fixedly installed at the upper left end of the vertical mounting plate (2), a wire tube (8) is installed at the front of the left side of the wire guide plate (7), a first threading hole (9) and a second threading hole (10) are respectively opened at the rear of the left side of the wire guide plate (7), and a third threading hole (11) and a fourth threading hole (12) are respectively opened in the middle and right side of the wire guide plate (7); a wire clamp (13) is fixedly installed at the left end of the front side of the vertical mounting plate (2), and the lower end of the wire tube (8) corresponds to the wire clamp (13) in upper and lower positions; a wire winder (14) is installed in the middle of the front side of the vertical mounting plate (2).

2. An automatic winding device according to claim 1, characterized in that: The wire clamp (13) comprises a threaded rod (131) and an adjusting cover (132), one end of the threaded rod (131) is fixedly mounted on the front side of the vertical mounting plate (2), a first wire clamping piece (133), a second wire clamping piece (134), a wire pressing piece (135) and an adjusting cover (132) are sequentially sleeved on the threaded rod (131), the first wire clamping piece (133) is arranged in contact with the front side of the vertical mounting plate (2), the other end of the threaded rod (131) is provided with a strip-shaped slot (136) along the axial direction, a Japanese-shaped hole is arranged in the middle of the wire pressing piece (135), the wire pressing piece (135) is movably inserted into the strip-shaped slot (136) through the Japanese-shaped hole, the adjusting cover (132) is threadedly connected to the threaded rod (131) through the threaded hole, and a wire clamping spring (137) is arranged between the wire pressing piece (135) and the adjusting cover (132).

3. An automatic winding device according to claim 2, characterized in that: A first gasket (138) is provided between the first wire clamping piece (133) and the vertical mounting plate (2), and a second gasket (139) is provided between the second wire clamping piece (134) and the wire pressing piece (135).

4. The automatic winding device according to claim 1, characterized in that: A cutting plate (15) is sleeved on the winding shaft of the winding device (14), and the cutting plate (15) is fixed by a fixing member (16).

5. The automatic winding device according to claim 1, characterized in that: The wire support mechanism comprises a chassis (3) and an unwinding arm (5); the chassis (3) is mounted on the right side of the upper surface of the horizontal mounting plate (1); the unwinding arm (5) is vertically arranged above the chassis (3); the downwardly bent section at the right end of the L-shaped wire tube (6) is vertically opposite to the unwinding arm (5).

6. An automatic winding device according to claim 5, characterized in that: The unwinding arm (5) is movably sleeved with a limiting pressure ring (17).

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