JP2002028388A - Sewing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sewing device capable of sewing a variety of patterns. SOLUTION: Motors 2e and 6e and belt conveyor mechanisms 2f and 6f that make a front frame 2 and a rear frame 6 independently slidable in the transverse direction perpendicular to the feed direction of a mattress by slide sections 2c and 6c and drive positively and negatively ball screw shanks 2d and 6d and their bearings 2g and 6g moving transversely the front frame 2 and the rear frame 6 are arranged on a device base 3, a plurality of sewing machine heads 1a and 5a are arranged in the frame direction of the front frame 2 and the rear frame 6 and shuttles 1c and 5c are arranged in the lower position, and a control board 7 controls the front frame 2, the rear frame 6 and the sewing machine heads 1a and 5a so that they may operate independently.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing machine for sewing various patterns and edge stitches on futons, sheets and wide fabrics, and relates to a technique for simultaneously performing a plurality of sewing operations while feeding a fabric. .

[0002]

2. Description of the Related Art The present applicant has developed a sewing apparatus for sewing a futon fabric with a plurality of sewing machine heads at a fixed position in one or two rows while feeding. In this apparatus, linear sewing can be performed with one or two rows of sewing machine heads. We have also developed a machine that moves the entire sewing machine head to the left and right so that pattern patterns such as wavy patterns and diamond patterns can be sewn. However, in a sewing apparatus that moves in synchronization in two rows in the same direction, only the same pattern can be sewn at the same position when the initial position setting of the sewing machine head is determined, and the pattern pattern is limited.

[0003]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to solve these problems of the prior art, to enable sewing of various combination pattern patterns, and to make the sewing position considerably free. An object of the present invention is to provide a sewing device.

[0004]

Means for Solving the Problems The constitution of the present invention which has solved the above problems is as follows: 1) A multi-head sewing machine row in which a plurality of sewing machine heads are arranged on a common frame in the left-right direction orthogonal to the cloth feeding direction is used for feeding the cloth. Sewing with a control unit that controls the left-right movement of each multi-head sewing machine row and the operation of each sewing machine head of each multi-head sewing machine row, while providing a plurality of rows in each direction. Apparatus 2) The sewing apparatus according to 1), wherein the control unit controls the respective multi-head sewing machine rows to move left and right with a predetermined phase difference in front and rear rows to sew the same pattern pattern 3) Left and right of each multi-head sewing machine row The sewing device according to the above 1) or 2), wherein the control unit controls the magnitude of the amplitude of the sewing machine depending on the row. 4) The left-right movement of each multi-head sewing machine row is controlled so as to sew a symmetrical pattern. Each sewing head There is in the sewing machine of the 2) or 3), wherein either the biasing center position to the left or right adjacent machine head in another column pattern to be sewn.

[0005]

DETAILED DESCRIPTION OF THE INVENTION A plurality of multi-head sewing machines of the present invention
Multiple frames that move left and right on a common pedestal are provided before and after,
A plurality of sewing machine heads are arranged on the upper frame of each frame, and a plurality of shuttles are arranged on the lower frame, and each frame is independently moved left and right on the pedestal. The upper shaft for driving the sewing machine head and the lower shaft for moving the shuttle are linked so as to synchronize. It is preferable that the frame can be precisely moved right and left by the ball screw shaft. Further, a driving motor may be provided for each sewing machine head so that the sewing machine heads of each multi-head sewing machine row can operate independently. Further, it is preferable that the position of the sewing machine head can be adjusted to some extent in the left-right direction with respect to the arranged frame, since the sewing machine head interval and the sewing position can be changed.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the embodiment. FIG. 2 is a plan view of the embodiment. FIG. 3 is a side view of the embodiment. FIG.
FIG. 2 is a sectional view of the embodiment. FIG. 5 is an explanatory diagram of the lateral movement of the embodiment. FIG. 6 is an explanatory diagram illustrating a use state of the embodiment. FIG. 7 is an explanatory diagram showing a pattern pattern that can be sewn in the embodiment. In the figure, KM is a sewing device of the embodiment, 1 is a front multi-head sewing machine row, 1a is a sewing machine head of the front multi-head sewing machine row, 1b is a common upper shaft for driving the same sewing machine head 1a,
1c is a shuttle on the sewing machine head 1a, 1d is a lower shaft for rotating the shuttle, 1e is a motor for rotating the upper shaft 1b and the lower shaft 1d, 1
f is a belt transmission mechanism for transmitting the power of the motor to the upper shaft 1b and the lower shaft 1d, 1g is a fabric receiving surface, 2 is a front frame on which the front multi-head sewing machine row 1 is mounted, 2a is an upper front frame of the front frame, 2b Is a lower front frame of the same front frame, and 2c is a sliding portion for running the front frame 2 on the rail 4a.
d is a ball screw shaft for moving the front frame 2 left and right, 2e is a left and right motor for rotating the ball screw shaft, 2f is a belt transmission mechanism for transmitting the power of the motor to the ball screw shaft 2d, and 2g is a bearing. . 3 is an apparatus base, 4a and 4b are rails laid on the apparatus base, 5 is a rear multi-head sewing machine row, 5a is a sewing machine head of the rear multi-head sewing machine row, and 5b drives a sewing machine head 5a. A common upper shaft, 5c is a shuttle on the sewing machine head 5a, 5d is a lower shaft for rotating the shuttle, 5e is an upper shaft 5
a belt transmission mechanism for transmitting the power of the motor to the upper shaft 5b and the lower shaft 5d;
g is a cloth receiving surface, 6 is a rear frame on which the rear multi-head sewing machine row 5 is mounted, 6a is an upper rear frame of the rear frame, 6b is a lower rear frame of the rear frame 6, and 6c is a rear frame 6 mounted on a rail 4b. A sliding portion for traveling, 6d is a ball screw shaft for moving the rear frame 6 left and right, 6e is a left and right movement motor for rotating the ball screw shaft, 6f is a belt transmission mechanism for transmitting the power of the motor to the ball screw shaft 6d. , 6g are bearings. Reference numeral 7 denotes a control panel which controls the motors 1e, 2e, 5e and 6e to control the left and right movements of the front multi-head sewing machine row 1 and the rear multi-head sewing machine row 5 of each sewing machine. A futon cutting device that cuts the sewn futon fabric at the length of the futon, 10 is a holder for the roll of futon fabric, 11 is a fabric feeder, and 12 is a fabric feed roller attached to the sewing device KM. In this embodiment, there is an electric clutch mechanism between the common upper shafts 1b, 5b and the respective sewing machine heads 1a, 5a, and each sewing machine head 1a, 5a can be switched on / off for each machine. , The control panel 7 performs the switching control. Further, the machine heads 1a and 5a of the front multi-head sewing machine row 1 and the rear multi-head sewing machine row 5 of this embodiment are arranged at the same pitch. In this embodiment, the roll-shaped futon cloth 8 is fed by the cloth feeder 11 and passed through the horizontal cloth receiving surfaces 1g and 5g of the front multi-head sewing machine row 1 and the rear multi-head sewing machine row 5 of the sewing apparatus KM to be cut. 9 The sent out futon cloth 8 is the front multi-head sewing machine row 1
Sewing machine head 1a and rear multi-head sewing machine row 5
and is sewn simultaneously. The sewing machine head 1a and the sewing machine head 5a can independently move left and right by rotation of the motors 2e and 6e. When the motor 2e is rotated in either the forward or reverse direction, the ball screw shaft 2d rotates in the forward or reverse direction via the belt transmission mechanism 2f, and the bearing 2g screwed therewith is mounted on the front frame 2, so that The frame 2 moves left and right on the rail 4a. Similarly, in the rear frame 6, when the motor 6e is operated in the forward or reverse direction, the ball screw shaft 6d rotates in the forward or reverse direction via the belt transmission mechanism 6f, and the bearing 6g screwed with the shaft and the rear frame to which this is attached are attached. 6 moves left and right. Thus, the front multi-head sewing machine row 1,
The shape of the pattern, the phase of the pattern, the amplitude, and the center position of the pattern are variously changed by moving left and right independently of the rear multi-head sewing machine row 5 and changing the position and amplitude of the left and right movement before and after. Can be set. Therefore, various patterns as shown in FIG. 7 can be sewn. For example, in the case of the diamond-shaped square pattern, the sewing head 1a of the front multi-head sewing machine row 1 is moved left and right to sew a triangular wave pattern, and the sewing head 5a of the rear multi-head sewing machine row 5 is stitched at 270 °. It can be formed by zigzag sewing with the same amplitude in the pattern of the phase of delay.
These controls can be freely set by the control panel 7. FIG. 7 shows various pattern patterns formed in this embodiment.

[0007]

As described above, according to the present invention, the front multi-head sewing machine row and the rear multi-head sewing machine row can be moved left and right independently so that various patterns can be sewn quickly and easily. did. In addition, the sewing type (edge sewing, pattern sewing) can be freely changed between the front row and the rear row, so that the sewing can be efficiently performed by the sewing flexibility and the simultaneous sewing.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is a side view of the embodiment.

FIG. 4 is a sectional view of the embodiment.

FIG. 5 is an explanatory diagram of the left-right movement of the embodiment.

FIG. 6 is an explanatory diagram showing a use state of the embodiment.

FIG. 7 is an explanatory diagram showing a pattern pattern that can be sewn in the embodiment.

[Explanation of symbols]

 KM Sewing device of embodiment 1 Front multi-head sewing machine line 1a Sewing machine head 1b Upper shaft 1c Hook 1d Lower shaft 1e Motor 1f Belt transmission mechanism 1g Fabric receiving surface 2 Front frame 2a Upper front frame 2b Lower front frame 2c Sliding portion 2d Ball Screw shaft 2e Motor 2f Belt transmission mechanism 2g Bearing 3 Device base 4a Rail 4b Rail 5 Rear multi-head sewing machine row 5a Sewing machine head 5b Upper shaft 5c Hook 5d Lower shaft 5e Motor 5f Belt transmission mechanism 5g Fabric receiving surface 6 Rear frame 6a Upper Rear frame 6b Lower rear frame 6c Sliding portion 6d Ball screw shaft 6e Motor 6f Belt transmission mechanism 6g Bearing 7 Control panel 8 Futon fabric 9 Futon cutting device 10 Holder 11 Fabric feed device 12 Fabric feed roller

Claims (4)

[Claims] 1. A multi-head sewing machine row in which a plurality of sewing machine heads are arranged on a common frame in a left-right direction orthogonal to the cloth feeding direction is provided in a plurality of rows in the cloth feeding direction, and each multi-head sewing machine row is independently moved left and right. A sewing machine having a control unit for controlling the horizontal movement of each multi-head sewing machine row and controlling the operation of each sewing machine head of the multi-head sewing machine row. 2. The sewing apparatus according to claim 1, wherein the control section controls the multi-head sewing machine row so as to move left and right with a predetermined phase difference between the front and rear rows to sew the same pattern. 3. The sewing apparatus according to claim 1, wherein the controller controls the magnitude of the left and right amplitudes of each multi-head sewing machine row depending on the row. 4. The left-right movement of each multi-head sewing machine row is controlled so as to sew a symmetrical pattern, and the center position of the pattern sewn by each sewing machine head is set to the left or right of the adjacent sewing machine head in another row. The sewing device according to claim 2, wherein the sewing device is biased to the crab.