JPH019503Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an apparatus for sewing fabrics such as futon fabrics, curtain fabrics, bed covers, and long fabrics.

[Conventional technology]

Conventionally, in this type of sewing device, the sewing machine head is generally fixed to the gate-shaped machine frame, and the sewing machine bed is fixed to the middle horizontal frame by means such as bolts and nuts. An automatic futon sewing machine developed by the present applicant and described in Japanese Utility Model Application No. 56-45470 is known as one in which a part of the sewing machine is movable. This allows the sewing machine to be operated at other positions by sliding the sewing machine head and bed to a predetermined position.

[Problem that the invention attempts to solve]

The position of the sewing machine and the interval between the sewing machines may have to be changed depending on the size of the object to be sewn, its purpose, the sewing pattern, etc. In such cases, with conventional sewing devices, the bolts and nuts for each sewing machine head and bed must be loosened, the sewing machine head and bed must be moved, and each time the sewing machine head and bed are adjusted and fixed at a predetermined position and angle, which is a very time-consuming process. I was getting used to it.
In addition, in the automatic bed stitching machine described in the above-mentioned Japanese Utility Model Publication No. 56-45470, both the sewing machine head and the bed can be moved and the interval between them can be adjusted freely, but the transmission mechanism of the sewing machine head is not capable of meshing the gears by lateral movement of the gears. Because of the gear change and because the movement of the sewing machine bed is limited by its mounting position, the sewing machine head and the sewing machine bed can only be moved to a limited number of specific positions. Furthermore, if the sewing machine head rotates even slightly due to movement of the sewing machine head, the sewing machine needle and the bed may become misaligned, requiring fine adjustment of the forward and backward rotation of the sewing machine head, which is not only troublesome but also time-consuming. I was getting used to it.

[Means for solving problems]

The present invention solves these problems and is a practical sewing device that allows the sewing machine to be easily and quickly moved to any desired position, and allows for easy adjustment of the fit between the sewing machine head and the bed. The gist is that a sewing machine head mounting cart 6 on which a sewing machine head 2 is vertically mounted is slidably attached to a guide rail 5 provided on a gate-shaped machine frame 1.
A spline shaft 7 for driving the sewing machine head is installed along the machine frame, and the bearing 8 of the center bearing portion 9 that slidably engages with the spline shaft is fixed to the sewing machine head mounting cart 6. 9 and sewing machine head 2
The operating shaft of the machine is transmitted by a belt or the like, and the bed mounting cart 19 is slidably moved in the direction of the machine frame on a traveling rail 25 provided on the intermediate horizontal frame 3 suspended horizontally below the gate-type machine frame 1. A spline shaft 17 for driving the bed is installed along the middle horizontal frame, and the middle bearing part 2 is slidably engaged with the spline shaft 17.
The sewing device is characterized in that one bearing 18 is fixedly mounted on a bed mounting cart 19, and the bearing portion and the bed operating shaft 22 are transmitted by a gear or the like.

[Effect]

In this invention, the sewing machine head can be moved to any desired position by loosening the clamp bolt and sliding the carriage 6 along the guide rail 5 provided on the gate-shaped machine frame 1. At this time, the trolley 6 is on the guide rail 5
Since the sewing machine head 2 slides along the horizontal frame, the posture of the sewing machine head 2 does not rotate and collapse, but only moves toward the machine frame while maintaining the same posture. Running rail 2 installed in
5 is slidable, so it can be easily and quickly moved to any position like the sewing machine head. Even if the sewing machine head and bed move, the spline shafts 7 and 17
Middle bearing parts 9, 21 and bearings 8, 18 that mesh with this
The belt gear transmission means enables power transmission at any position. The sewing machine head and bed are fixed using simple means such as clamp bolts.

〔Example〕

This embodiment is an example in which a sewing machine head and a lower bed are linked by a drive shaft using one motor. 1 in the diagram
is the gate type machine frame, 2 is the sewing machine head, 3 is the middle horizontal frame, 4
1 is the bed of the sewing machine, 5 is a traveling rail attached to the gate-type machine frame 1, 6 is a sewing machine head mounting trolley, 7 is a spline shaft for driving the sewing machine head installed along the gate-type machine frame 1, and 8 is the sewing machine The bearing of the spline shaft 7 attached to the mounting cart 6, 9 the center bearing of the same bearing, 10 the belt pulley attached to the center bearing, 11 the operating shaft of the sewing machine head 2, 12 the same operating shaft. 13 is a belt, 14 is a sewing machine needle, 15 is a linear way, 16 is a motor that drives the spline shaft 7, 17 is a spline shaft that drives the bed, 18 is a bearing for the spline shaft, 19 is a bed mounting cart,
20 is the linear way of the belt mounting cart, 21 is the center bearing part of the bearing 18, 22 is the bed operating shaft, 2
3 and 24 are gears attached to the bed operating shaft and the center bearing part 21 and meshed with each other, and 25 is the linear way 2.
0 running rail, bearing 1 in bed 4
8. The mounting structure of the center bearing portion 21 and gear 24 is the same as that of the bearing 8, center bearing portion 9, and belt pulley 12 of the sewing machine head 2, and the lateral movement and power transmission method thereof are also the same. In this embodiment, a sewing machine mounting cart 6 to which a sewing machine head 2 is attached is movable along a guide rail 5 of a gate-shaped machine frame 1 by means of a linear way 15. Even when the sewing machine head mounting trolley 6 moves, the belt pulley 10 accompanies the movement of the sewing machine head mounting truck 6 together with the bearing 8, and rotates with the rotation of the spline shaft 7 to transmit the rotation of the operating shaft 11 via the belt 13. Activate. On the other hand, the bed 4 is made movable by sliding along the travel rail 25 of the linear way 20 of the bed mounting cart 19. Moreover, even if the bed 4 moves, the rotating shaft 17
is rotated by the bed operating shaft 2 via gears 23 and 24.
Even if the driving force is transmitted to the bed 2 and moves, the driving force is transmitted without any problem, and the bed 4 can be operated. The movement of the sewing machine head 2 and bed 4 is simply by sliding along the direction of the gate-shaped machine frame 1, and there is no change in posture or angle, so only the positions of the sewing machine head 2 and bed 4 in the direction of the machine frame 1 are adjusted. If so, they can be aligned immediately and fixed with bolts or other means such as clamps, and the position and spacing of the sewing machine can be adjusted quickly and reliably. Furthermore, in the structure of this embodiment, the sewing machine head 2 and the sewing machine bed 4 can be smoothly interlocked without being moved.

[Effect of idea]

As described above, according to the present invention, by having the features described above, it is possible to adjust the spacing between grid patterns, pattern spacing, and move the sewing machine to any desired position extremely quickly and easily. Adjustment of the fit between the head and the bed is easy, as it only requires correcting left and right positional deviations. As a result, it was possible to make the sewing device even more practical.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the sewing device of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view thereof, and FIGS. 4 and 5 are explanatory diagrams showing essential parts of the present invention. 1...Portal machine frame, 2...Sewing machine head, 3...Middle horizontal frame, 4...Bed, 5...Guide rail, 6
... Sewing machine head mounting trolley, 7 ... Spline shaft, 8 ... Bearing, 9 ... Middle bearing part, 10, 12
...Belt wheel, 13...Belt, 15,20...
Linear way, 17... Spline shaft, 1
8...Bearing, 19...Bed mounting trolley, 20...
Linear way, 21... middle bearing section, 22... bed operating shaft, 23, 24... gear, 25... running rail.

Claims (1)

[Scope of utility model registration request] A sewing machine head mounting cart 6 with a sewing machine head 2 hanging thereon is slidably attached to a guide rail 5 provided on a gate-shaped machine frame 1, and a spline shaft 7 for driving the sewing machine head is constructed along the machine frame. The bearing 8 of the middle bearing part 9 which is slidably engaged with the spline shaft is fixed to the sewing machine head mounting trolley 6, and the middle bearing part 9 and the operating shaft of the sewing machine head 2 are transmitted by a belt or the like. In addition, the bed mounting cart 19 is attached to the traveling rail 25 provided on the middle horizontal frame 3 horizontally suspended below the gate-type machine frame 1 so as to be slidable in the direction of the machine frame, and the bed is mounted along the middle horizontal frame. A driving spline shaft 17 is installed,
The bearing 18 of the middle bearing part 21 that slidably engages with the spline shaft 17 is fixed to the bed mounting cart 19, and the middle bearing part and the bed operating shaft 22 are transmitted by a gear or the like. sewing equipment.