JPS6137279A - Cloth feeder of quilting machine - 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 (a) Industrial Application Field The present invention relates to a fabric feeding device for a quilting machine, and is used to remove dust, particularly by forming concave grooves on the surface of a cushion sheet, etc., and sewing inside the grooves. The present invention relates to a fabric feeding device that feeds a member in a predetermined direction to sandwich a .xi. tensioning member between a lower fabric and an upper fabric.

(b) Conventional technology This type of technology has traditionally been used.

As described in Japanese Patent Publication No. 57-22598, a slit is provided in the upper plate, and a plurality of circular rings are rotatably supported in the slit while being overlapped with the upper cloth, the threading member, and the lower cloth. There has been a configuration in which a plurality of shafts are provided at right angles to the stacked sewing members, and the circular ring rotates together with the shafts along the slit to move the sewing members and send them out in a predetermined direction.

However, this conventional technique has the following drawbacks.

(1) When the circular ring attached to the shaft rotates along the inside of the slit, it slips and the member cannot be sent in a predetermined direction. In particular, slippage may occur easily depending on the type of sewing member used.

(2) Suitable for continuous sewing long items, but not suitable for sewing short fabrics.

(3) Mechanically complex. A separate device for feeding and stacking the sewing members must be provided and operated in cooperation with the transfer member including the ring.

(C) Summary of the Invention The present invention aims to eliminate the above-mentioned drawbacks, etc., and in order to achieve the purpose, an upper feed roller device and a lower feed roller device are used as devices for feeding sewing members in a predetermined direction. First, the belt of the lower feed roller device disposed under the table is moved over the top surface of the table, and then the belt of the lower feed roller device disposed under the table is moved over the upper feed roller device disposed above the lower feed roller device. The provided belt contacts the belt of the lower feed roller device and is movable in the same direction, and the upper
When a sewing member is inserted between the lower roller devices and sent out in a predetermined direction, the plurality of rollers provided in the upper feed roller device and wrapped with band cords are inserted into the concave grooves provided in the padding member of the sewing member. To provide a configuration in which a sewing member is fed out in a predetermined direction by traveling along a groove to form a seam along a groove.

B) Example An example according to the present invention will be described below. This embodiment can be roughly divided into an upper feed roller device a, a lower feed roller device b1, and a drive device C! Ill be.

The upper feed roller device a includes a plurality of center feed rollers arranged in a U-shaped frame 2 provided at the center and side feed rollers arranged on both sides of the center feed roller group. I'll do it. The central feed roller group includes a main feed roller 4, and three rollers 6a and 6b each rotatably supported on the frame 2.

6c, 8a, 8b, 8c, 10a, 10b, 10c.

12a, 12b', 12c, and so on. The main feed roller 4 is a roller 14a at the tip of each of the first side feed roller 14 and the second side feed roller 16.

The first drive shaft 18 is installed in parallel with the first drive shaft 16a and has a drive gear 22 at its end. Next feed roller 6a
, 6b and 6c are fitted and fixed onto a drive shaft 20 having another second drive roller 24 at its end. A synchro belt 28 is wrapped around the second drive roller 24 and a first drive roller 26 provided on the first drive shaft 18 .

Sending pollers 8a, 8b, 8c, 10a, 10b.

10c, 12a, 12b, and 12c are fixed to a first rotating shaft 8, a second rotating shaft 10, and a third rotating shaft 12, respectively, which are rotatably provided on the frame 2 at approximately equal intervals.

A pulley arm portion 32a is provided at the open end of the U-shaped frame 2.

32b is fixed, and these arm parts extend across a presser foot 34 provided on the support part 36, and a first. Rollers 14b and 16b of the second side feed rollers are rotatably supported. First of all. second side feed roller 14,
16 rollers 14c, 14d, 14e,.

The end rollers 14'f, 16c, 16d, 16e, and 16f are formed to be small, respectively.

Main feed roller 4, rollers 6b, 8b, 10b.

The central band cord 38 is in the groove of 12b, and the roller 6a,
A first band cord 4o is wound around the grooves 8a, 10a and 12a, and a second band cord 42 is wound around the grooves of the rollers 6c, 8c, 10c and 12c, respectively.

Next, the configuration of the lower feed roller b will be explained.

Center roller group 4, 6b, 8b of upper feed rollers.

Rollers 5Qa, s are fixed to a drive shaft 58 having a drive gear 56 at the end as opposed to 10b and 12b.
Three main feed belts 48a that are tied to ob, 50c
, 48b, 48c and a side feed bell) 54, which is hung around side feed rollers 52a, 52b fixed to the drive shaft.
a, 54bi are provided, and these main feeding belts 48a,
48b, 48c, the first side feed belt 54a, and the second side feed belt 54b are wound around respective rollers fixed at opposite positions of a rotating shaft 60 provided at a position relative to the drive shaft 58. The lower feed roller b'tl is usually attached below the machine installation table, and the belt group is
It passes through two slit holes 72 provided in the table 70 close to the roller and is slidably provided on the upper surface of the table 70.

As shown in FIG. 4, the drive device C is configured by connecting the drive gear 62 of the lower feed roller drive shaft 58 mounted on the lower surface of the table through gears 64 and 66 disposed on the support plate 68. It consists of an upper feed roller drive gear 22 and a first drive shaft 18 that fixedly supports the upper feed roller drive gear 22. Therefore, the lower feed roller drive shaft 5
8 rotates in a predetermined direction by the motor drive, this movement is transferred to the upper feed roller drive gear 22 via the gears 64 and 66'i.
and rotates in the opposite direction to the lower feed roller drive shaft.

Next, the operation of this embodiment will be explained. As shown in FIG. 3, legs 74a, 74b, 74c.

74d (74d not shown) and support member 76.788
A lower feed roller device '6 is attached to the lower surface of the table 70 equipped with a The upper surface is made slidable, and the main feed roller 4 of the upper feed roller device is mounted on the main feed belt 48b.
．． Rollers 6b, 8b.

38 central band cords tied to 10b and 12b,
The heald 48a has rollers 6a and 8a of an upper feed roller device.
, 1'Oa, and 12a, and rollers 6c, 8c, and 10c of the upper feeding roller device are mounted on the upper surface of the feeding belt 48c.

The second band cords 42, which are tied around the cables 12c, are arranged so as to be in contact with each other.

Furthermore, side feed roller belts 44 and 46 of the upper feed roller device are disposed so as to be able to come into contact with the portions of the first side feed belt 54a and the second side feed belt 54b that are exposed on the top surface of the table 70. FIG. 3 is a diagram illustrating a configuration in which the Ih roller 1 is disposed on the hinge row 5 with the chisel 7n sandwiched between them as described above.

In FIG. 4, when a drive motor (not shown) is started to rotate the drive shaft 58 of the lower feed roller device in the direction of the arrow, the rotation is transmitted to the drive gear 22 of the upper feed roller device via gears 64 and 66i. First drive shaft 18 of the feed roller device
and the drive shaft 58 of the lower feed roller device rotate in opposite directions. Further, the ζ first drive shaft 18 and the second drive shaft 20 are connected to an annular belt 28.
a roller 6c rotated through and attached to the second drive shaft 20;
8c, 10c, 12c as well as 6a, 8a.

The second band cord 42 is tied to the grooves of 10a and 12a.
, il band cord 4o as well as the main feed roller 4 and rollers 6b and 8b fixed to the first drive shaft 18.

Similarly, the belts 44 and 46 move in the direction of the arrow in response to the rotation of the first drive shaft 18.

The member to be sewn is usually formed of a relatively thin upper fabric and a padding member made of relatively thick horsetail, tongue, etc. between the upper fabrics, and the banding member includes a band cord 38.
, 40.42, and each knotted cord rotates within these recesses as the sewing member moves.

Therefore, as shown in FIG. 3, the sewing member w6. The band cords of the upper and lower roller devices are rotated from the direction of the arrow by the upper surface drive device of the belt group of the lower and lower roller devices a,
By the action of the belt, when the belt is fed between the two devices, the thread is moved between the two devices, and is threaded along the concave portion of the sewing member by the needle thread and bobbin thread supplied to the needle that moves up and down with the presser foot 34. After the seam is formed, it is sent forward. At this time, the roller arms 32a and 32b serve to make it easier for the sewing member to fit under the presser foot 34.

(e) Effects In the present invention, the sewing member feeding device/stitcher employs a plurality of band cords for main feeding and a movable belt tracker in contact with the band cords, and side feeding rollers are used to assist the main feeding operation. This makes it easy to smoothly move the sewing member and form a seam along the recess provided in the sewing member. In addition, it is possible to sew short items efficiently, and the work of feeding the sewing parts and the work of forming seams can be performed with a simple structure using a roller and a band cord over which the belt is attached, so that it is possible to sew short items efficiently. No separate feeding device is required.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an upper feed roller device according to an embodiment of the present invention. FIG. 2 is a perspective view of the lower feed roller device. FIG. 3 is a perspective view in which a lower feed roller device is provided on the lower surface of the table and an upper feed roller device is provided on the upper surface of the table. FIG. 4 is an enlarged perspective view showing the drive device of FIG. 3. 2...Frame 4...Main feed roller 8...First rotating shaft 10...Second rotating shaft 12...Third rotating shaft 14...First side feeding roller 16...No. 2 side feed roller 18...first drive shaft 20...second drive shaft 22...drive gear 24...drive roller (second) 26...drive roller (first) 28... Synchronous belt 38...Central band coat 40...First band code 42...Second band code 44...Side feed roller belt 46...48a, 48b, 48cm Main feed belt 50a, 50b
, 50cm=Roller 52a...First side feed roller 52b...Second side feed roller 54a...First side feed belt 54b...Second side feed belt 58...Drive shaft 60... Rotating shaft 62... Drive gear 70... Table 72... Slit Hole Co., Ltd. Asada Sewing Machine Co., Ltd. Patent attorney Sakae Kobayashi Figure 3 Figure 4 Procedural amendments November 3, 1980 Patent Application No. 162487 2, Title of Invention: Cloth Speed Sheet Device for Quilting Machine 3, Relationship to the Amendment Case Patent Applicant

Claims (1)

[Claims] 1. An upper feed roller device in which a plurality of rows of freely rotatable rollers with band cords wrapped around them are housed in parallel in a frame, and a pair of side feed rollers are provided on both sides of the frame, and a table. on a lower feed roller device, which includes a group of belts disposed below the belts that pass through slit holes so that the band cord of the upper feed roller device and the belt of the side feed rollers come into contact with each other and are movable in the same direction; A fabric feeding device for a quilting machine that consists of a drive device that rotationally drives the roller of a lower feeding roller device. 2. A main feed roller, a driving gear at one end, and a first roller at the other end.
A synchronized belt is wrapped around a first side feed roller around which a side feed roller belt is wound, and a second side feed roller around which two side feed roller belts are wound in order from the outside between the outside of the frame and the drive gear. A first drive shaft to which a first drive roller to be suspended is mounted is mounted on a U-shaped frame, and a second drive roller to which a synchro belt is wound around an end thereof is provided;
A second drive shaft on which a plurality of rollers, each of which is wrapped around a band cord provided in a U-shaped frame, is fixed in parallel is mounted on a frame behind the main feed roller, and furthermore, a plurality of parallel rollers, each of which is wrapped around a band cord, are mounted on the frame behind the main feed roller. A first rotating shaft, a second rotating shaft, and a third rotating shaft to which the group is fixed are mounted on the frame behind the second drive shaft, and a pair of side roller arms are extended on both sides of the opening of the frame. The first and second roller belts are provided with a side feed roller belt wrapped around this arm.
A fabric feeding device for a quilting machine according to claim 1, comprising an upper feeding roller device each provided with a side roller. 3. A plurality of main feed belts that are in contact with the band cords of the upper feed roller device and movable in the same direction as these belts, and side belts of the first and second side feed rollers of the upper feed roller device. A lower feed roller device and a lower feed roller device, each having a drive shaft and a rotating shaft, each having a plurality of rollers and a rotating shaft that spans first and second side feed belts that are in contact with each other and are movable in the same direction. 2. The cloth feeding device for a quilting machine according to claim 1, further comprising a drive device in which the rotation of the drive shaft is transmitted to the first and second drive shafts of the upper feed roller device through a gear.