JPH0428824B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a long towel fabric cutting device for cutting a long towel fabric, which is a raw material for towels, which has a pile weave in the center and a plain weave at both ends, at the center of the plain weave. It is something.

Regarding conventional long towel fabric cutting equipment,
The distance between the long towel fabric feed roller and the long towel fabric support base is set to an intermediate value between the thickness of the pile weave and the plain weave of the long towel fabric, and the feed roller comes into contact with the pile weave. Then, the pile weave is transferred, and the plain weave is idled to stop the transfer, and the boundary between the plain weave and pile weave is temporarily stopped at the feed roller position, and then the middle of the plain weave is cut with a cutting blade. I try to judge.

This configuration has the disadvantage that the accuracy of the stopping position of the boundary portion with respect to the roller is low.
Furthermore, when the length of the plain weave portion of the long towel fabric is changed, the position of the feed roller must be adjusted, and the setup change work for this purpose is extremely troublesome.

Therefore, in order to eliminate the above-mentioned drawbacks, the present invention aims to provide a raw material for forming a towel having a pile weave in the center and a plain weave at both ends, and a long length having pile weave and plain weave in the longitudinal direction. A cutting blade is provided for cutting the plain weave portion of the long towel fabric along the moving trajectory, and a cutting blade is provided on the long towel fabric feeding side of the cutting blade. When the tip is in contact with the plain weave part of the long towel fabric at an appropriate interval, the plain weave part is allowed to pass through, and when the tip part is in contact with the boundary between the plain weave part and the pile weave part of the long towel fabric, it is allowed to pass through. In the long towel fabric cutting device, a positioning piece having a receiving portion shaped to engage with the pile weave to prevent its passage is arranged so as to be movable up and down along the movement trajectory. By configuring the piece and the cutting blade so that the relative distance with respect to the moving direction can be changed, the long towel fabric can be cut so that the center position of the plain weave part in the moving direction is exactly perpendicular to the moving direction. To provide a cutting device for a long towel fabric which can easily and quickly carry out setup change work when the length dimension of a plain weave part of the long towel fabric is changed.

The drawings showing the embodiments of the present application will be described below. In Figures 1 to 8, 1 is a long towel fabric that is a well-known raw material for towels and has a pile weave in the center and plain weave at both ends;
As shown in the figure, it is constructed by alternately weaving pile weave portions 1a and plain weave portions 1b. Reference numeral 2 denotes a cutting device for cutting the center position of the plain weave portion 1b of the long towel fabric 1, and is constructed as follows. Reference numeral 3 denotes a support base, on which an upper surface 3a and towel fabric guides 4 and 5 attached thereto form a movement locus 6 for moving the long towel fabric 1. Reference numeral 7 denotes a cutting blade disposed along the movement trajectory 6 on the support base 3, and is configured to cut the plain weave portion 1b of the long towel fabric 1. As shown in FIGS. 1 and 2, this cutting blade 7 is composed of a fixed blade 8 and a movable blade 9, which are arranged perpendicularly to the direction of movement of the long towel fabric 1. The fixed blade 8 is fixed to the side surface of a groove 10 formed on the upper surface 3a of the support base 3, and its cutting edge 8a is positioned so as to be in contact with the lower surface of the moving path 6. The movable blade 9 is fixed to a piston rod 11a of a pneumatically or hydraulically operated cutting cylinder 11 via a fitting 12, and is moved up and down by the operation of the cutting cylinder 11, so that the cutting edge 9a is moved to the fixed blade 8.
It is adapted to slide with the cutting edge 8a of the blade. The cutting cylinder 11 is attached to a support plate 13 fixed to the support base 3 by support legs 13a on both outer sides of the movement path 6.

Next, 14 is a pneumatically or hydraulically operated feeding cylinder fixed to the support plate 13, as shown in FIG.
As shown in FIG. 4, a pair of left and right cutting blades are provided on the long towel fabric delivery side of the cutting blades 7. 1
5 is the above-mentioned pair of left and right feeding cylinders 14, 14.
The support frame is fixed to the piston rods 14a, 14a, and support bolts 16 are fixed at both left and right ends by mounting nuts 17, 18. Reference numeral 19 denotes a support piece attached to the support bolt 16 so as to be movable up and down, and a nut 2 screwed onto the support bolt 16.
The bolt head 16a is urged downward by a spring 21 compressed between the bolt head 16a and the bolt head 16a.
This support piece 19 is attached symmetrically to both support bolts 16. 22 is the left and right support piece 19 mentioned above.
A roller support shaft 23 having both ends fixed to the roller support shaft 22 is a presser roller provided on the roller support shaft 22, and is disposed above the movement trajectory 6 in a direction perpendicular to the movement direction. This presser roller 23
is constituted by a plurality of presser roller elements 24 sequentially provided in the axial direction of the roller support shaft 22. As shown in FIG.
5 and a rotary ring 27 rotatably attached to the outer periphery of the support cylinder 25 via a bearing 26. Next, reference numeral 28 denotes a feed roller arranged to face the presser roller 23 on the lower side of the movement path 6, and as shown in FIG. It is composed of a rotary shaft 31 rotatably supported by the support wall 29 via a bearing 30, and a rotary ring 32 rotatably fitted around the rotary shaft. Located on the side. As shown in FIG. 4, this rotating ring 32 is divided into a plurality of rotating ring elements 32a at distances in the axial direction. These rotary ring elements 32a are formed to correspond vertically to the presser roller element 24, and can rotate independently of each other. Above rotating shaft 3
1 is adapted to be rotated by a motor 100 in the direction of the arrow. As shown in FIGS. 4 to 6, slip means 33 are interposed between each of the rotating wheel elements 32a and the rotating shaft 31, respectively. This slip means 33 rotates the rotational force of the rotation shaft 31 when the plain weave portion 1b of the corresponding width portion of the long towel fabric 1 corresponding to the rotation wheel element 32a is in contact with the receiving portion of the positioning piece described later. However, when the boundary portion 1c of the pile weave portion 1a in the corresponding width portion is in contact with the receiving portion of the positioning piece, the rotational force of the rotating shaft 31 cannot be transmitted to the rotating wheel element 32a. It is composed of In the slip means 33, 34 is a storage hole formed in the rotary wheel element 32a, 35 is a screw plug screwed into the entrance of the storage hole 34, and 36 is a ball stored in the storage hole 34, which is screwed into the storage hole 32a. The outer periphery of the rotating shaft 31 is pressed by a spring 37 that is compressed and interposed between the stopper 35 and the stopper 35 . Numeral 38 denotes engagement grooves formed in the axial direction on the outer periphery of the rotating shaft 31, and are formed at positions dividing the outer periphery into three equal parts.

Next, support pieces 39 and 40 are fixed to the support stand 3 on the long towel fabric feeding side of the cutting blade 7, and are provided on the left and right outer sides of the movement path 6, respectively. Reference numeral 41 denotes a guide bolt supported by the support pieces 39 and 40, and is arranged parallel to the moving direction of the long towel fabric 1.
A support block 42 is attached to a pair of left and right guide bolts 41, 41 so as to be movable in the axial direction, and is fixed in position by a pair of nuts 43, 44 screwed onto the guide bolt 41. A cutout window 45 is formed in the support block 42 at a portion corresponding to the movement trajectory 6, and the long towel fabric 1 is passed through the cutout window 45. 4
Support arms 6 have one end fixed to the upper surface of the support block 42, and are provided near both ends of the support block 42, respectively. 47 is a positioning cylinder fixed to the other end of the support arm 46, and a retaining nut 49 is attached to the tip of the piston rod 47a.
are screwed together. 48 is the positioning cylinder 4
This hanging piece is attached to the piston rod 47a of No. 7 so as to be movable up and down, and is prevented from coming off by the above-mentioned retaining nut 49 via a washer 49a, as shown in FIG. Reference numeral 50 denotes an upper positioning piece fixed to the pair of left and right hanging pieces 48, 48, which is biased downward by its own weight, and when the piston rod 47a is protruded, it follows the long movement path 6 as shown in FIG. It is designed to be dropped onto towel fabric 1. This upper positioning piece 50 allows passage through the plain weave portion 1b of the long towel fabric 1 when the tip thereof is in contact with the plain weave portion 1b of the long towel fabric 1, and the tip portion is allowed to pass through the plain weave portion 1b of the long towel fabric 1.
It has a receiving part 50a that prevents the pile fabric part 1a from passing when it is in contact with the boundary between the pile fabric part 1a and the pile fabric part 1a. This receiving portion 50a is arranged above the movement trajectory 6 in a direction perpendicular to the movement direction. The position of the support block 42 is adjusted so that the distance between the receiving portion 50a and the cutting blade 7 is half the length of the plain weave portion 1b of the long towel fabric 1. Support arms 51 have one end fixed to the lower surface of the support block 42, and are provided near both ends of the support block 42, respectively. 5
A lower positioning piece 2 is fixed to the tips of the pair of left and right support arms 51, 51, and is disposed below the movement locus 6 so as to face the upper positioning piece 50. This lower positioning piece 52 also has a receiving portion 5 similar to the receiving portion 50a of the upper positioning piece 50.
2a is formed. 53 is the lower positioning piece 5
2, and guide holes 54 formed at both ends of the upper positioning piece 50.
are slidably fitted to each other.

In the case of the above-mentioned structure, when cutting the long towel fabric 1 using this, first, as shown in FIG. The fixed blade 8 is raised upward, and the piston rod 14a of the feed cylinder 14 is retracted to operate the presser roller 2.
3 is raised above the feed roller 28 as shown in FIG.
2. Raise it above 2. Next, the long towel fabric 1 is hung around the towel guides 4 and 5, passed between the upper positioning piece 50 and the lower positioning piece 52, and the plain weave portion 1b is pulled out to the position of the cutting blade 7. When a start switch (not shown) is turned on in this state, the motor 100 is driven and the feed roller 28
The rotating shaft 31 and each rotating wheel element 32a are rotated in the direction of the arrow. Further, the main body 60 of the known drawing device A is moved from the feeding direction side of the long towel fabric 1,
Fixed clamping piece 61 and movable clamping piece 6 of this drawing device A
2 passes the long towel fabric 1 between the feed roller 28 and the presser roller 23 and between the fixed blade 8 and the movable blade 9.
It is inserted to a position where the plain weave portion 1b at the tip is sandwiched. Thereafter, the clamping cylinder 63 of the pull-out device A is operated, and the movable clamping piece 62 clamps the plain weave portion 1b at the tip of the long towel fabric 1 between it and the fixed clamping piece 61. Next, the main body 60 is moved in the feeding direction of the long towel fabric 1 as shown in FIG. It is pulled out to the left through the gap. This drawing of the long towel fabric 1 is continued until the second plain weave portion 1b of the long towel fabric 1 is moved between the upper positioning piece 50 and the lower positioning piece 52, and then stopped. Next, as shown in FIG. 11, the piston rod 4 of the positioning cylinder 47 is
7a is operated to protrude, and the receiving portion 50a of the upper positioning piece 50 is moved to the lower positioning piece 5 as shown in FIG.
It is placed on the plain weave part 1b on the receiving part 52a of No. 2 by its own weight. Further, the piston rod 14a of the feed cylinder 14 is actuated to protrude and the support frame 15 is lowered, whereby each presser roller element 24 is pressed onto the long towel fabric 1 on the corresponding rotary ring element 32a of the feed roller 28 by the spring 21. , 21 are pressed together. At this point, the receiving part 50a of the upper positioning piece 50 and the receiving part 52a of the lower positioning piece 52 are in contact with the plain weave part 1b of the long towel fabric 1, so each rotating wheel element 32a is a presser roller element. With the long towel cloth 1 sandwiched between the towel cloth 24 and the towel cloth 24, the long towel cloth 1 is rotated in the feeding direction as the rotary shaft 31 rotates. Therefore, the corresponding width portion of the long towel fabric 1 between each rotary wheel element 32a and the presser roller element 24 is transferred to the left. The corresponding width portions of this long towel fabric 1 are transferred to the plain weave portion 1 of each corresponding width portion.
b and the pile weave portion 1a until the boundary portion 1c contacts the receiving portions 50a, 52a of the upper and lower positioning pieces 50, 52, and then the boundary portion 1c contacts the first
As shown in FIG. 2, when the long towel fabric 1 comes into contact with the receiving portions 50a, 50a, the feeding resistance of the long towel fabric 1 increases in the corresponding width portion, and the ball 36 of the slip means 33 increases.
is pushed up from the engagement groove 38, thereby stopping the rotation of the rotating wheel element 32a in the corresponding portion and stopping the transfer of the long towel fabric 1 in the corresponding width portion. Therefore, as shown in FIG. 14, the boundary part 1c between the plain weave part 1b and the pile weave part 1a of the long towel fabric 1 is the receiving part 5 of the upper and lower positioning pieces 50, 52.
Even if it is transferred obliquely with respect to 0a, 52a, the boundary portion 1c is ultimately parallel to the receiving portions 50a, 52a over the entire width, as shown in FIG. 14, 2. They can be aligned in a straight line. Thereafter, as shown in FIG. 13, the piston rod 11a of the cutting cylinder 11 is operated to project and the movable blade 9 is lowered, thereby causing the long towel fabric 1
The plain weave portion 1b is cut parallel to the boundary portion 1c at the center of its length. After cutting this long towel fabric 1, the towel on the tip side of this long towel fabric 1 is moved to a predetermined position. After that, each piston rod 11a, 14 of the cutting cylinder 11, the feeding cylinder 14, and the positioning cylinder 47 is
a, 47a are retracted to return to the state shown in FIG. 9, and then the long towel fabric 1 is cut into short towels by repeating the above operations.

Next, when the type of the long towel fabric 1 is changed and the length dimension of the plain weave portion 1b of the long towel fabric 1 is changed, the position of the support block 42 is adjusted by loosening the nuts 43 and 44. In particular, the distance between the positioning piece 50 and the cutting blade 7 may be set to half the length of the plain weave portion 1b.

FIG. 15 shows a different embodiment of the present application,
The cutting blade is configured so that the position of the cutting blade can be adjusted with respect to the positioning piece. In this FIG. 15, 70 is a bearing 71 attached to the support base 3,
The screw shaft is rotatably supported by a screw shaft 72 so as not to move in the axial direction, and a handle 73 for rotating the screw shaft is attached to one end. The screw shafts 70 are provided at both left and right ends of the support base 3e, respectively. Reference numeral 74 denotes a support block which is attached to the pair of screw shafts 70, 70 so as to be movable in the axial direction, and this support block 74 is equipped with a cutting blade 7e, a presser roller 23e, and a feed roller 28e.

It should be noted that the same reference numerals as those in the previous figure are appended with an alphanumeric letter "e" for parts that are functionally the same or equivalent to those in the previous figure, and redundant explanations are omitted.

As described above, in the present invention, the cutting blades 7 are arranged along the movement trajectory 6 of the long towel fabric 1, and the cutting blades 7 are arranged at appropriate intervals on the long towel fabric feeding side. When the tip is in contact with the plain weave part 1b of the long towel fabric 1, the plain weave part 1b is allowed to pass through,
A positioning piece having a receiving part 50a having a shape that engages with the pile weave part 1a and prevents its passage when the tip part 50a is in contact with the boundary part 1c between the plain weave part 1 and the pile weave part 1a of the long towel fabric. 50 is disposed so as to be able to move up and down along the above-mentioned movement locus, so when the long towel fabric 1 is cut to produce a towel, the boundary portion 1c between the plain weave portion 1b and the pile weave portion 1a of the long towel fabric 1 is cut. It can be stopped with high precision. As a result, the plain weave portion 1 of the long towel fabric 1
The advantage is that it is possible to cut at an accurate position midway in the direction of movement of b, and as a result, a towel can be manufactured that has a pile weave section 1a in the center and plain weave sections 1b of the same length at both ends. There is.

Furthermore, since the positioning piece 50 and the cutting blade 7 are configured to be able to change the relative distance, when the length dimension in the moving direction of the plain weave portion 1b of the long towel fabric 1 is changed, By simply adjusting the position of either the positioning piece 50 or the cutting blade 7, it is possible to cut the plain weave section 1b at the center position, which facilitates setup change work when the length dimension of the plain weave section 1b is changed. It has the effect of being simple and quick.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is an overall perspective view, FIG. 2 is a partial side view taken in the direction of the arrow in FIG. 1, FIG. 3 is a cross-sectional view taken along the - line, and FIG. 5 is an enlarged sectional view along the line, FIG. 6 is an explanatory diagram of the operation of FIG. 5, and FIG. 7 is an enlarged sectional view along the line
An enlarged line sectional view, FIG. 8 is an explanatory diagram of the operation of FIG. 7,
9 to 13 are explanatory diagrams showing a series of operations in order, FIG. 14 is an explanatory diagram showing a positioning operation of the pile weave, and FIG. 15 is a side view showing a different example of the present application, partially in cross section. 1...Long towel fabric, 1a...Pile Oribe,
1b... Plain weave part, 1c... Boundary part, 6... Movement locus, 7... Cutting blade, 28... Feed roller, 31...
...Rotating shaft, 32... Rotating ring, 32a... Rotating ring element, 33... Slip means, 50... Positioning piece, 50a... Reception part.

Claims (1)

[Claims] 1 A locus of movement is provided for passing a long towel fabric, which is a raw material for forming a towel having a pile weave in the center and a plain weave at both ends, and has a pile weave and a plain weave in the longitudinal direction. A cutting blade for cutting the plain weave portion of the long towel fabric is provided along the locus, and a long tip is provided at an appropriate interval on the long towel fabric feeding side of the cutting blade. When in contact with the plain weave of the towel fabric, the plain weave is allowed to pass through, and when the tip is in contact with the boundary between the plain weave and pile weave of the long towel fabric, it engages with the pile weave and prevents its passage. In a long towel fabric cutting device in which a positioning piece having a receiving portion shaped like this is disposed so as to be movable up and down along the movement trajectory, the positioning piece and the cutting blade are relative to the movement direction. A long towel fabric cutting device characterized in that it is configured to be able to change the distance.