KR890004809B1 - Feed device of fabric in a quilting machine - Google Patents

Abstract

An apparatus comprises a first roller for feedign cloth, drive means, a second roller for tensioning the cloth, and transmission means. The drive means rotate the first roller intermittently in a forward or reverse direction synchronously with the up-down motion of a upper sewing needle. The second roller is disposed in parallel with the first roller. The transmission means are disposed in a perpendicular direction to the first and second rollers for transmitting the driving force of the first roller to the second roller in order to operate them synchronously.

Description

Textile conveying apparatus in quilting machines

1 is a front view showing the fabric conveying apparatus in the quilting machine of the present invention.

2 is an enlarged perspective view of FIG.

3 is a side view of FIG. 1.

4 is a side view showing a fabric conveying apparatus in a conventional quilting machine.

* Explanation of symbols for main parts of the drawings

10: quilting machine 11: fabric transfer device

12: first roller 136: driving means

14 second roller 15 power transmission means

26: toothed fleece 27: flat belt with toothed

The present invention relates to a fabric conveying apparatus in a quilting machine, and also, in detail, by adjusting the synchronization of the first roller and the second roller to forward and reverse rotation of each roller, the fabric is subjected to constant tension. A textile conveying device in a quilting machine in which it is conveyed forward and backward.

As the fabric conveying apparatus 1 in the conventional quilting machine, what is described in Japanese Utility Model Registration No. 58-187002 is limited.

As shown in FIG. 4, the drive means 3a for forward and reverse rotation of the first roller 2 and the first roller 2 provided in the lateral direction of the first roller 2 and And a second roller 4 provided opposite to the first roller 2 and a drive below the second roller 4 to drive the second roller 4 via the clutch 5. Means (3b), and the first and second rollers (2) and (4) rotate forward and reverse by means of the respective driving means (3a) (3b) to continuously move the cloth (6) forward and backward. It is intended to be transferred to.

By the way, in this cloth conveying apparatus 1, it is via the clutch 5 by the 1st roller 2 driven by the drive means 3a provided in the axial direction, and the drive means 3b provided below. Since each of the second rollers 4 to be driven can be driven independently of each other, starting of the driving means 3a and 3b for driving the first rollers 2 and the second rollers 4, The timing of stop or forward and reverse rotation may be shifted.

For this reason, the rotation of the 1st roller 2 may be quick, and the rotation of the 2nd roller 4 may be fast, and the cloth 6 conveyed by this roller 2 and 4 may always be fixed. No quilting can be carried by transfer with tension, and the quilted shape of a pattern of a predetermined shape cannot be accurately expressed on the fabric 6.

In addition, in this fabric conveying apparatus 1, the cloth 6 is continuously conveyed to the front and the rear by continuously rotating the first roller 2 and the second roller 4 forward and reverse. Even when the upper needle 7 descended and was in the cloth 6, the cloth 6 was moved forward and backward.

Therefore, the upper needle 7 in the cloth 6 is bent and bent or bent in the feeding direction of the cloth 6 in accordance with the transfer of the cloth 6, and the upper needle 7 enters the cloth 6. When the cloth (6) is transferred to the sieve there is a problem that a large saliva is created in the cloth (6) and the look is missing.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described point, and it is an object of the present invention to provide a fabric conveying apparatus in a quilting machine which can simultaneously transport cloth with a constant tension and reduce breakage of the upper hand and breakage of the cloth.

That is, the present invention provides a first roller for conveying cloth, and a drive means and intermittently rotating the first roller intermittently forward and reverse in accordance with the lifting motion of the upper needle, provided in the axial direction of the first roller. A second roller which operates together with the first roller installed in parallel to impart a tension to the cloth, and transmits driving of the first roller to the second roller installed in a direction orthogonal to the first roller and the second roller; It is a fabric conveying apparatus in the quilting machine characterized by including the transmission means which drives a 1st roller and a 2nd roller synchronously.

Therefore, in the fabric conveying apparatus of the quilting machine according to the present invention, the first roller for conveying the cloth is intermittently rotated forward and backward by the driving means provided in the axial direction of the first roller. At the same time as the reverse rotation, the second roller provided in parallel with the first roller is synchronously operated with the first roller by a transmission means installed so as to be orthogonal to the axial direction of the first roller and the second roller, and the first roller and the second roller are synchronously operated. The rollers work together to provide a constant tension on the fabric.

Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings.

1 is a front view showing a quilting machine with a fabric conveying apparatus of the present invention.

2 is an enlarged perspective view thereof.

3 is a side view showing the fabric conveying apparatus in the quilting machine of the present invention.

In the quilting machine 10 as shown in FIG. 1, FIG. 2, and FIG. 3, the 2nd roller 14 is provided in the left-right direction of the rear end of the quilting machine 10, and this 2nd roller In front of 14, the first roller 12 is provided in the left-right direction of the same quilting machine 10 at regular intervals parallel to the said 2nd roller 14. As shown in FIG.

The drive means 13 is provided in the axial direction of this 1st roller 12, and the transmission means 15 is provided so that it may orthogonally cross the said 1st roller 12 and the 2nd roller 14. As shown in FIG.

As described above, the fabric conveying apparatus 11 in the quilting machine according to the present invention is constituted by each member described above. The 1st roller 12 is a roller which conveys the cloth 16 installed in the left-right direction of the quilting machine 10, as shown to FIG. 1, FIG. 2, and FIG. In order to increase the frictional force with the (16), a lattice groove 17 is formed.

Further, the first roller may be wound with rubber or the like in order to increase the frictional force.

At both ends of the quilting machine 10, bearing plates 18 are provided, on which three first rollers 12 are rotatably supported axially and pressed against each other toward the front forward. It is added. In addition, the drive means 13 is connected to the lateral direction of the 1st roller 12, and moreover, power is turned on more accurately.

The drive means 13 is a servo motor, as shown in Figs. 1, 2 and 3, and moves up and down by the upper needle 20 in accordance with an instruction from an NC controller (not shown). It can be intermittently rotated forward and reverse. That is, when the drive means 13 servomotor rotates intermittently by the instruction | command of NC control apparatus (not shown) which detects the lifting operation of the upper needle 20, it stops when the upper needle 20 raises. It rotates and reverses rotation, and stops when the upper hand 20 descends.

Thus, the drive of the drive means 13 is driven to the clutch 21 and adjusted at a predetermined speed, and is then driven to the first roller 12 at the lower end through the joint 22, and the first roller ( 12 intermittently rotates forward and backward in accordance with the lifting operation of the upper needle 20 together with the other first roller 12 which is in pressure contact with each other through the cloth 16, and the cloth 16 is turned forward and backward. It is intermittently conveyed to the rear.

In this embodiment, the drive means 13 is connected to the left side of the first roller 12 in the axial direction. In addition, if the installation position of the said drive means 13 is provided in the axial direction of the 1st roller 12, it may be left or right.

Thus, the second roller 14 is provided in parallel with the first roller 12 which intermittently rotates forward and reverse by the drive means 13.

As shown in FIG. 1, FIG. 2, and FIG. 3, the 2nd roller 14 is the roller provided in the left-right direction of the rear end of the quilting machine 10, and the frictional force with the cloth 16 on the surface. In order to increase the height, a lattice groove 17 is formed. The second roller may be wound with rubber or the like in order to increase the frictional force.

The second roller 14 is rotatably coupled with two other second rollers 14 having a pressing cylinder 24 on the mounting plates 23 and 23 provided at the rear ends of the quilting machine 10. The second rollers 14 are pressed against each other through the cloth 16 and act like the first roller 12 so that the second rollers 14 give a constant tension to the cloth 16. have. Moreover, the 2nd roller 14 is provided in parallel with the said 1st roller 12 at regular intervals, and between the 2nd roller 14 and the 1st roller 12, the cloth press board 25 is carried out. And the upper needle 20 for lifting and lowering the inside of the pressing plate 25 are arranged.

The transmission means 15 is provided so as to be orthogonal to the axial direction of the 1st roller 12 and the 2nd roller 14 comprised in this way.

The transmission means 15 comprises a pliers 26 with teeth attached to the left side of the first roller 12 and the second roller 14, respectively, as shown in FIGS. 1, 2 and 3; It is comprised as the tooth fung belt 27 attached to the fleece 26 with a tooth. One toothed fleece 26 is provided on the side 28 protruding from the first roller 12 and the left end, and the other toothed fleece 26 is the left end of the second roller 14. Lines provided on the shaft 29 protruding from the mounting plate 23 and having the pliers 26 and 26 attached to each of the teeth are aligned with the axes of the first roller 12 and the second roller 14. It is supposed to be orthogonal. The toothed pleated belt 27 is hooked to the pliers 26 and 26 provided in this way, and is similarly orthogonal to the axes of the first roller 12 and the second roller 14.

Then, the above-described second roller 14 together with the first roller 12 instructs the NC controller (not shown) to interlock in the forward and reverse rotation directions intermittently in accordance with the lifting operation of the upper needle 20. Synchronous operation is carried out, and the cloth 16 is conveyed forward and backward with a constant tension.

In addition, the transmission means 15 is not limited to the toothed fleece 26 and the toothed funnel 27, but may consist of a sprocket, a chain, a gear, etc.

As mentioned above, in the fabric conveying apparatus in the quilting machine of this invention, the 1st roller which conveys cloth is intermittent according to the lifting motion of an upper needle by the drive means provided in the axial direction of this 1st roller. The second roller installed in parallel with the first roller is driven synchronously with the first roller by a transmission means installed in a direction orthogonal to the first roller and the second roller. And 2 rollers are designed to give a certain tension to the fabric to work together.

Therefore, in the fabric conveying apparatus of the quilting machine according to the present invention, the first roller and the second roller whose synchronization is adjusted are always rotated forward and backward at the same speed so that the fabric is always subjected to constant tension. It can be conveyed, and the cloth can accurately represent the quilted shape having a pattern of a predetermined shape.

Further, in the fabric conveying apparatus of the quilting machine of the present invention, each roller is intermittently rotated forward and backward in accordance with the lifting operation of the upper hand, and the fabric is intermittently conveyed to the front and the rear. When the lowering is in the cloth, the cloth is not transported to the front and rear, and the problem of deterioration of the appearance of badness is caused by the breakage of the upper hand, the breakage such as bending, or the enlarged needle hole of the cloth.

Claims (1)

A first roller for conveying cloth, drive means for intermittently forward and reverse rotation of the first roller in accordance with the lifting motion of the upper needle, provided in the axial direction of the first roller, and the first roller in parallel A second roller which acts together with the first roller to apply tension to the cloth and is installed in a direction orthogonal to the first roller and the second roller, and transmits the driving of the first roller to the second roller; And a transmission means for synchronously driving the second roller and the fabric conveying apparatus in the quilting machine.

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