JPS58200773A - Automatic line image sewing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic line drawing sewing device, and more specifically, to an automatic line drawing sewing device, which includes a motor driven by an output signal from a memory that stores coordinates in the X direction and the Y direction. The present invention relates to an automatic line drawing sewing device for positioning a sewing product.

In conventional devices of this type, the workpiece is held in a frame, and the frame is moved by a motor. The sewing item had to be removed from the frame and then a new sewing item had to be attached to the frame, which was a real hassle.

The present invention was made in view of the above circumstances, and
A cloth is held between a pair of cloth feed rollers attached to a shaft and a cloth loading plate (2. The first motor rotates the shaft and moves the cloth axially in a direction perpendicular to the cloth feed direction. 7, the self-drawing stitching device is constructed to make the cloth follow the movement of the roller.

Thus, according to the present invention, it is not necessary to attach the cloth to the frame, so it is possible to solve the problems as before.
The size of cloth and line drawings can be set relatively freely. In addition, the load on the motor can be reduced, making it possible to downsize the motor and reduce power consumption.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, the machine frame 11 of the automatic line drawing sewing device 10 includes:
The bracket 12 is fixed with screws (not shown). The bracket 12 has a shaft 1 erected on the sewing machine table 18.
The winding of 4 is also a trap so that both ends 12m and 12b overlap, and the both ends 1? , +I 12h by tightening one mounting screw (not shown) and attaching the bracket 12 and shaft 14.
and becomes fixed.

The first pulse motor 15 is attached to the machine frame 11, and its shaft 15
A is inserted into the machine frame] 7 and the boolean 16 is attached. A shaft 17 is embedded in the longitudinal wall 111 of the machine frame 1 and protrudes into the machine frame 1. The shaft 171 (is rotatably mounted on the pulley 18).
A timing belt 19 is stretched between the boot 111 (5 and 1-I+-18), and the first pulse motor 1
When the timing belt 5 is driven, the timing belt 19 also moves.

A moving body 20 (No. 1) is attached to the bottom of the timing slide 19. That is, a groove 20b is formed in the top of the lower portion 20m of the movable body 20, and the timing pel 19 is fitted into this groove 20b. And the top 2
By screwing 0e to the lower part 20m, the moving body 2
0 and timing belt 19 between pulleys 16 and 18! ! fI]'.

See you below! A protrusion 20d is formed on 20a, and this protrusion 2nd is fitted into a groove 11C carved in the bottom wall 'Llb of the machine frame 11. Then, when the movable body 20 moves together with the timing belt 9, the movable body 20 is prevented from shaking.

Side 1 of machine frame 11! The left end portion (not shown) and the right end portion 21. Each of them has a round shaft shape. 1. Thus, the left end portion of the drive shaft 21 is rotatably connected to the lower portion 20 of the moving body 20. In addition, the central portion 2 of the drive shaft 2]
A pulley 22 is fixed at 1 m, and spline bushings 24 press-fitted into the inner ring of a bearing 28 are mounted on both sides of the pulley 22 (however, only one of the bearings and spline bushings is shown). The bearings 28 are fitted into the holes 44e and 44d of the two limbs 448.44b of the support body 44, respectively, and are fitted into the side walls 11d of the support body 44 No. 3 machine frame 11.
It is fixed to a protrusion @lle that forms a step from the top.

A second pulse motor 25 is attached to the protruding wall 11e of the machine frame 11, and its shaft 258 is attached to the protruding wall li.
Boo 1-26 is attached after passing 8 e. A timing belt 27 is stretched between the boot II-26 and the second pulse motor.
When the shaft 25 is driven, the shaft 2] is rotated via the timing belt 27. The first pulse motor 15 and the second pulse motor 25 are driven in synchronization with the rotation of the sewing machine according to a position signal of (X, Y) coordinates stored in a memory (not shown). It has become.

A pair of cloth feed rollers 29, 30 are attached to the right end 21b of the shaft 21 at a predetermined interval with screws 81 (only one shown).
The outer circumference of the roller 29.80 is baked with hard rubber. Thus, the right end portion 21b of the shaft 21 is disposed on the rear side of the needle bar 28, and the needle bar 81 is positioned between the pair of cloth feed rollers 29, 30.

The front end of the fabric stacking plate 32 is fixed to the sewing machine table 18 with a screw 33 via a spacer 39, and a clearance 84 is formed between the rear end of the fabric stacking plate 82 and the sewing machine table 18. A slit 85 is formed from the rear end to the front end of the cloth loading plate 82, and the side part 8
2m and 32b are formed. A needle 86 fixed to the needle bar 28 falls into the slit 35, and the side portions 32m and 32b of the fabric stacking plate 82 come into contact with the fabric feed rollers 29 and 30. ing.

Note that 87 is a bed that is pivotally supported on the sewing machine table 18 by a hinge 38. Alternatively, the needle bar 28 is driven by a sewing machine main body (not shown) in a well-known manner. Further, when the sewing is completed, a signal is generated from the memory so that the center point of the roller 29.80 comes immediately after the needle 24, and the cloth W is removed from the underside of the roller 29.80.

The operation of the above structure will be explained with reference to FIGS. 2 and 3. When the cloth W is placed on the cloth stacking plate 82 and pushed down by hand, the sides 32m and 32b of the cloth stacking plate 82a bends downward, and the cloth W is transferred to the cloth stacking plate 82 and a pair of rollers 29.
．． It can be between 80 and 80. So L7, put your hands on cloth W
The cloth W is moved away from the cloth loading plate 82 by the elasticity of the cloth loading plate 82.
and rollers 29, 30.

When the sewing machine is operated in this state, the X coordinate position signal is sent to the first pulse motor 15, and the Y coordinate position signal is sent to the second pulse motor 15.
The first pulse motor 15 and the second pulse motor 25 are respectively driven in synchronization with the sewing machine.

When the first pulse motor 15 is driven, the shirt)
As the timing belt 19 rotates by 15 m, the timing belt 19 moves, and the movable body 20 integrated with the timing belt 19 is guided by the groove 116 and moves in the X direction, that is, in a direction perpendicular to the cloth feeding direction. When the moving body 20 moves in the X direction, the shaft 2 also moves in the X direction, but since the outer periphery of the roller 29.30 attached to the shaft 21 is baked with hard rubber, The frictional force between W is
It is larger than that between the cloth W and the cloth loading plate 82, and the cloth W follows the movement of the roller 29, 30 in the X direction.

When the second pulse motor 25 is driven, its shaft 7) 25a rotates via the timing belt 27 to the shaft 2.
Rotate 1. When the shaft 21 rotates, the roller '29
, 30 rotate, and the cloth W moves in the Y direction.

By driving the first pulse motor 15 and the second pulse motor 25, the cloth W is positioned and sewing is performed, and when the sewing is completed, the needle 86 moves to the roller 29. as shown in FIG. Located between 30 and cloth W<-
10-Lar 29.80 will come off the bottom side.

Also, loosen the screw 81 of the roller 29 and
When the screw is tightened again after bringing it close to the roller 30, narrow width cloth WKJjl can be made starting from the state shown in FIG. 4 and ending in the state shown in FIG. 5.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the automatic line drawing sewing device according to the present invention, FIG. 2 is a diagram for explaining the state at the start of sewing,
Fig. 8 is a diagram for explaining the state at the end of sewing, Fig. 41
5 and 5 are views when the distance between the rollers is narrowed, and FIG. 4 illustrates the state at the start of sewing, and FIG. 5 illustrates the state at the end of sewing. 15.- is the first pulse motor, 21... shaft, 25.
...Second pulse motor, 29, 30-...Fabric feed roller, 82...Fabric loading plate Patent applicant Aisin Seiki Co., Ltd. Substitute player Reio Nakai W Figure 2 Inasa blz1

Claims (1)

[Claims] A cloth is sandwiched between a pair of cloth feeding rollers attached to a shaft and a cloth loading plate 7, and the first and second motors rotate and move the shaft in the axial direction, respectively, to transport the cloth. An automatic motion II sewing device configured to follow the movement of the cloth feed roller.