JPH0556074U - Long sheet processing machine - Google Patents

Abstract

(57) [Summary] [Purpose] Processing that allows both side edges of a relatively hard long sheet to be automatically folded into a uniform width and sewn, and openings can be formed in place even for sections of different lengths. Machine. [Structure] Bend both side edges from the outside with a pair of left and right rulers set at a narrower interval than the fed long sheet, and use the sensors to operate the left and right width adjustment rollers Further, a distance setting means is provided between the opening processing means and the cutting means for controlling, and a feeding distance measuring means is provided for the feeding means.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a processing machine for sewing a long sheet used for a container bag or the like, forming an opening, and cutting.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, as a long sheet processing machine similar to the above, there is a long material double-head sewing machine that folds the left and right ears of a towel roll in three with a wrapper tube and continuously sewes them. Long items, such as relatively soft towel rolls, were smoothly folded into three ears by a trumpet tube that spirally spiraled, and the ears were sewn efficiently.

[0003]

[Problems to be solved by the device]

 However, in order to fold and sew both left and right ears of a relatively hard long sheet used for container bags etc. for reinforcement, in the conventional double-head sewing machine for raw towel cloth, folding with a trumpet tube is required. It was difficult. In particular, maintaining a uniform width of ears on the left and right sides has been difficult with a long sheet that is easy to meander. In addition, the conventional double-head sewing machine has not been able to form a new opening in a long sheet or cut at a predetermined length.

The present invention has been devised in view of the above, and it is possible to automatically sew ears with a uniform left and right folding width on a relatively hard long sheet, and to form openings and It is an object of the present invention to provide a long sheet processing machine capable of cutting at a fixed position with respect to an opening.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the machine for processing a long sheet of the present invention bends the left and right side edges of a relatively hard long sheet unwound from an original sheet once inside. A processing machine for sewing side edges, in which a left / right ruler that is adjustable in the width direction of the machine base, and a presser that folds and presses each side edge of the long sheet onto the ruler from the outside, From the selvage width setting device including left and right folding width adjusting rollers capable of generating thrust in an oblique direction for controlling the folding width in the vicinity of the presser, and a sensor for controlling the action of the rollers, and a sewing sewing machine of the folding side edge portion. It is characterized by being configured. A stepped roller device is provided between the original web feeding portion and the tenter device.

In order to achieve the latter purpose, the machine for processing a long sheet according to the present invention performs opening processing on a long sheet which is intermittently fed in the longitudinal direction by a feeding means while the sheet is stopped. Opening processing means, distance setting means for setting the distance between the center of the processing means and the cutting position at a fixed position in front of the processing means, the cutting means at the fixed position, and the feeding means attached to the feeding means. It is characterized in that it is composed of a distance measuring means.

[0007]

【Example】

 1 to 5, a description will be given of a long sheet ear seam opening forming machine 1 for a container bag, which is an embodiment of the long sheet processing machine of the present invention. The container bag B according to the present embodiment is formed by stitching a section B1 having an upper X-shaped opening O bent into a U shape and a lower section B2 as shown in FIG. The main processing machine 1 folds and sewes the left and right ears A1 and A2 before cutting the sections B1 and B2, cuts the opening O in the upper section B1 and cuts it into a predetermined length, and opens the lower section B2. Cut into a predetermined length without forming

The processing machine 1 includes original rollers 11 a and 11 b that support and roll the original roll AO of a relatively hard long sheet A containing nylon and the like, a tension 12, and a pull-in roller 13. A first step roller device 14, a pair of left and right meandering correction cross guiders 15, a tenter bar 16, a selvage folding edge selvage device 17, a feeding assist roller 19, and a pair of left and right selvedge sewing machines 20, A main feeding roller 21, a second step roller device 22, a pair of left and right cross guiders 24, an opening forming chrysanthemum device 25, a length setting device 27, a feeding roller 28, a heat cutting device 29, The machine base 2 is equipped with an auxiliary roller 30.

The original rollers 11a and 11b and the pull-in roller 13 are rotated by a drive source such as a motor when the elevating roller 14a of the first step roller device 14 is raised to the position of the upper proximity switch 14b. When the roller 14a is lowered to the position of the lower proximity switch 14c, it is intermittently operated to be stopped. The cross guider 15 controls the lower tense bar 16 so as to prevent the running long sheet A from meandering so that the left and right outer ears A1 and A2 of the bar 16 are as uniform as possible. .

The edge-to-edge folding-out tool 17 is vertically installed so as to be movable in the left-right width direction together with the tenter bar 16 on a beam 2b which is horizontally installed on the downflow side of the machine base tower 2a equipped with the cross guider 15. A pair of left and right abutments 17d approaching or leaving along the rail 17c by a ball screw 17b rotated by a handle 17a, and a width ruler 17i extending from the abutment 17d, and the abutment 17d. On the other hand, a pair of left and right motor bases 17e vertically moved through the air cylinder 17j, and a "C" -shaped slant toward the upstream side driven by the motor 17f to the bases 17e in the feeding direction. It is composed of a pair of left and right edge width adjusting rollers 17g and an ear pressing roller 17h extending from the abutment 17d. In order to make the widths of the left and right ears A1 and A2 of the long sheet A uniform, for example, as shown in FIG. 2, the reflection type photocells PH1, PH2, and PH3 are provided on the motor base 17e on the right side with respect to the feeding direction. On the left side, however, a reflection type phototube PH4 is provided on the motor base 17e so that the raising of the motor base 17e by the left and right air cylinders 17d is controlled.

That is, when the ear width on the right side becomes too wide and covers the reflection plate of the photocell PH1, the air cylinder 17j on the right side is lifted to release the inward moving force of the ear A2 and the left roller 17g is used. When it is pulled to the left side and the width of the ear on the right side becomes too narrow and the reflection plate of the photocell PH2 is exposed, the air cylinder 17j on the left side is lifted to release the inward moving force of the ear A1 and the right ear A2. Is controlled to be pulled to the right side so that the edge of is located between the photocells PH1 and PH2. During normal movement, the folding lines of the ears A1 and A2 are always applied to the outer edges of the rulers 17i and 17i by the rollers 17g and 17g. The left and right outermost photocells PH3 and PH4 are for detecting an abnormal state, and when the reflection on the long sheet A is blocked, the operation of the main processing machine 1 is stopped.

The feeding auxiliary roller 19 provides the long sheet A with a feed synchronized with the feed speed of the feed dog of the sewing machine 20. Further, the pair of left and right presser plates 18a and 18b hold down the ears A1 and A2 and hold down the left and right meanders to guide the sewing machine 20. The long sheet A after the sewing of the ears A1 and A2 is sent to the second step roller device 22 by the main feeding roller 21 in synchronism with the feed speed of the sewing machine feed dog. In principle, the second step roller device 22 stores the sheet A that is being fed because the long sheet A stops moving when the chrysanthem device 25 is activated, while the sewing machine 20 is always operating. However, the elevating roller 22a moves up and down between the lowest proximity switch 23a and the intermediate proximity switch 23b.

However, when the elevating roller 22a reaches the position of the switch 23a after a long period of operation, the operation of the sewing machine 20 is interrupted, which is called a cycle stop. When the raising / lowering roller 22a reaches the position of the intermediate switch 23b, the operation of the chopping device 25 side is delayed until the roller 22a falls below the switch 23b. When the roller 22a reaches the uppermost proximity switch 23c, the operation of the main processing machine 1 is stopped and the feeding speeds of the sewing machine side and the chopping device side are readjusted.

Since the distance between the heat cutting device 29 for cutting the upper section B1 from the long sheet A and the center of the chopping device 25 is constant in the horizontal direction of the machine base 2, the lengths of the sections B1 and B2 are equal to each other. Accordingly, a length setting device 27 for absorbing and setting the length on the way is provided. The chopping device 25 includes an X-shaped blade 25c on a frame 25b that is vertically moved by the air cylinders 25a, ..., The feeding roller 28 stops and holds the long sheet A. In the meantime, the blade 25c is moved up and down to cut the opening O into the long sheet A, and after confirming one cycle of up and down movement by the proximity switches 26a and 26b, the roller 28 is rotated to connect the pulse encoder to the roller 28. 28a, while paying attention to the predetermined length of the section B1, it is fed out and cut by the nichrome wire 29a of the heat cutting device 29. Even if the feeding speed is faster than the sewing machine feeding speed, it is adjusted by the storage of the second step roller device 22. The U-shaped bent portions are marked by magic pens 25d attached to the four corners of the frame 25b.

The length setting device 27 includes an input shaft 27b with a handle 27a that is horizontally mounted on the top of the third tower 2c, a pair of left and right bevel gears 27c and 27c of the shaft 27b, and an umbrella that meshes with the bevel gears 27c and 27c. A pair of left and right vertical ball screws 27e, 27e having gears 27d, 27d at the top, nuts 27f, 27f screwed to the vertical ball screws 27e, 27g, and a roll 2h suspended between brackets 27g, 27g. The height of the roll 2h is adjusted according to the length of the sections B1 and B2.

For the lower section B2, the operation is the same as for the upper section B1 except that the operation of the chrysanthemum device 25 is stopped and the opening formation is omitted. In addition to the above, the length setting device 27 also uses an elevating system of the roll 2h by an air cylinder, etc., and a cutting means using a guillotine type cutting blade in addition to the heat cutting device 29.

[0017]

[Effect of the device]

 As described above, according to the long sheet processing machine of the present invention, the folding width of the left and right ears can be made uniform even for a relatively hard long sheet, and the sewing can be automatically performed. Apertures can be machined in place for pieces of different length and pieces of different length can be cut out.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an outline of a long sheet processing machine according to an embodiment of the present invention.

FIG. 2 is a schematic plan view of an edge-folding edge-widening device and its vicinity of the processing machine.

FIG. 3 is a perspective view of the right-hand side of the same-ear-folding edge-widening device.

FIG. 4 is a schematic perspective view of a length setting device of the processing machine.

FIG. 5 is an exploded view of the container bag.

[Explanation of sign]

 1 Long sheet processing machine 2 Machine 14 Step roller device 17 Ear width setting device 17g Folding width adjusting roller PH control sensor 20 Ear sewing machine 25 Opening processing means 27 Distance setting means 28 Feeding means 29 Cutting means 28a Feeding distance Measuring means A Long sheet A1, A2 Side edge (ear)

Claims (3)

[Scope of utility model registration request] 1. A processing machine for bending the left and right side edges of a relatively hard long sheet unwound from an original fabric to the inside and sewing the folded side edges. Left and right width rulers that can be adjusted in the width direction, a presser that presses each side edge of the long sheet from the outside to press it in, and a thrust can be generated diagonally to control the folding width near the presser A machine for processing a long sheet, which comprises a left and right folding width adjusting rollers, a selvage width setting device including a sensor for controlling the action of the rollers, and a sewing machine for sewing a folding side edge portion. 2. The processing machine according to claim 1, wherein a stepped roller device is provided between the original fabric feeding portion and the tenter device. 3. An opening processing means for performing opening processing on a long sheet which is intermittently fed in the longitudinal direction by the feeding means during a stop, and a cutting position at a fixed position in front of the center of the processing means. A long sheet processing machine comprising: distance setting means for setting the distance to be changeable, the fixed position cutting means, and feeding distance measuring means attached to the feeding means.