JPH06190786A - Towel material cutting method - Google Patents

Abstract

PURPOSE:To narrow the space between a cutter edge and a drawout mechanism and cut towel material into a specified size even though its plane shape is made small by drawing out a long stretching towel material, depressing by a depressing member, and cutting off by the cutter while the towel material lying between it and the drawout mechanism is secured satisfactorily long. CONSTITUTION:The leading edge of a long stretching towel material 1 is drawn out by a drawout mechanism 40, and a depressing member 65 whose contacting part is widened, is moved downward, and further darwing-out is made while the towel material portion lying between a cutter 5 and the drawout mechanism 40 is depressed. A locating piece 17 is sunk when the flat woven part 1b of the towel material 1 passes under the piece 17 provided on the side from which the towel material is fed, and a receptacle part for it is engaged by a step situated between the flat woven part 1b and a pile weave part 1a, followed by stop of proceeding of the towel material 1. Then the flat woven part 1b between the cutter 5 and locating piece 17 is fixed by a set member, and towel is cut away by the cutter 5 from the towel material 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a towel having a pile weave portion at the center and a plain weave portion having a thickness thinner than the pile weave portion at both ends, and more specifically, a plain weave portion and a pile weave portion. The present invention relates to a method for cutting a towel cloth in which a long towel cloth having alternately and is transferred in the longitudinal direction and the long towel cloth is cut.

[0002]

2. Description of the Related Art In a conventional method for cutting a long towel cloth, a flat cloth having a predetermined size is set with reference to a step between a relatively thick pile weave and a thinner plain weave. It was cut so that the woven portion remained at the end. At the time of cutting, the tip portion of the long towel cloth located at the cutting blade was pulled out by a pulling mechanism by a predetermined dimension and cut.

[0003]

In the conventional towel cloth cutting device, the drawing mechanism has to draw out a long size corresponding to the towel length of the product, which requires a large stroke and requires a large stroke. There is a problem that the planar shape becomes large.

The present invention intends to provide a method capable of cutting a towel cloth of an appropriate size even if the cutting blade and the drawing mechanism are narrowed to reduce the overall planar shape. It is a thing.

[0005]

The method of the present invention is a raw material for forming a towel having a pile woven portion in the central portion and a plain woven portion at both ends, wherein the pile woven portion and the plain woven portion are alternated in the longitudinal direction. The leading end of the long towel cloth that is cut by the cutting blade is pulled out along a predetermined moving path by the drawing mechanism, and the long towel cloth between the cutting blade and the drawing mechanism is the movement of the long towel cloth. The long towel cloth that is between the cutting blade and the drawing mechanism is pushed down by pulling down the pressing member for pushing down the long towel cloth with the mutual contact portions widened in the direction, thereby pulling out the above long towel cloth. ,
When the plain weave portion of the long towel cloth passes below the positioning piece provided on the long towel cloth source side of the cutting blade, the positioning piece is lowered to make the receiving portion of the positioning piece a plain weave portion of the long towel cloth. And the pile weave section are engaged with each other to stop the progress of the long towel cloth, and then the plain weave section between the cutting blade and the positioning piece is fixed by the set member, and then the long piece is cut with the cutting blade. The above towel is separated from the towel.

[0006]

[Function] When the leading end of the long towel cloth at the cutting blade is pulled out by the drawer mechanism, the pressing member of the pressing mechanism provided between the cutting blade and the drawing mechanism is lowered to push down the long towel cloth. Even if the distance between the cutting blade and the drawing mechanism is short, the towel cloth between the cutting blade and the drawing mechanism becomes sufficiently long, and the towel having an appropriate size can be cut by the cutting blade.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, 1 is a long towel cloth,
The pile weave portion 1a and the plain weave portion 1b are alternately provided. Reference numeral 2 denotes a movement trajectory of the long towel cloth 1, which is formed on the frame 3. Reference numerals 4 to 22 are publicly known (for example, JP-A-60-756).
No. 67), a member similar to the member in the towel cutting device, 4 is a cutting mechanism. Here, 5 is a cutting blade, which is composed of a fixed blade 6 and a movable blade 7 which is moved up and down by a cutting cylinder 90. Reference numeral 8 is a positioning device.
In this, 11 is a guide rod fixedly supported by the support pieces 9 and 10, 12 is a support body which is movably attached to the guide rods 11 and 11 in the longitudinal direction of the movement path 2, and the movement path is A cutout window 13 is formed in a portion corresponding to 2. Reference numeral 14 is a support arm, 15 is a lower positioning piece fixed to the support arms 14 and 14, 16 is a guide pin, and 17 is an upper positioning piece mounted on the guide pins 16 and 16 so as to be vertically movable. . Receiving portions 15a, 17 formed on the positioning pieces 15, 17
When a is in contact with the plain weave portion 1b of the long towel cloth 1, the plain weave portion 16 is thin so that the plain weave portion 16 is allowed to pass therethrough.
Since a is suddenly thickened, it is formed so as to engage with a stepped portion having a step as shown in FIG. 6 and prevent its passage. The interval V between the cutting blade 5 and the receiving portion 15a is approximately half (for example, 35 m) of the length (for example, 70 mm) of the plain weave portion 1b of the long towel cloth 1.
m) is set. 18 is a support arm, 19 is a positioning cylinder for lifting the positioning piece 17, its cylinder body 19a is fixed to the support arm 18, and its piston rod 19b is fixed to the positioning piece 17 as shown in FIG. It is inserted through the through hole 20a of the hanging piece 20. 21 is a retaining nut and 22 is a retaining washer. Next, 23 is a moving cylinder exemplified as moving means for moving the positioning piece in the longitudinal direction of the movement path 2, 23a is a cylinder body, and 23a is a cylinder body.
Reference numerals b and 24 denote piston rods, respectively. 25 is a connecting plate. The moving means may be configured by screwing a screw shaft, which is normally and reversely rotated by a pulse motor or the like, into a nut integrated with the support body 12, and various known moving mechanisms may be used.

Next, reference numeral 26 is a dimension measuring means disposed on the long towel cloth source side of the positioning pieces 15 and 17, and is shown in FIG.
It is constructed as shown in FIG. In this, 27
Is a receiving roller rotatably supported by the frame 3, 28
Is a support bracket fixed to the support body 12, 29 is a support shaft rotatably supported by the support bracket 28, and 30 is a support shaft.
Is a swing lever that is rotatably attached to the support shaft 29,
A roller shaft 31a of a length-measuring roller 31 is rotatably attached to the lower end portion, and an object 32 to be detected is fixed to the upper end portion. The length measuring roller 31 is biased downward by a coil spring 33. The length measuring roller 31 has a large frictional force between the long towel cloth 1 and the long towel cloth 1 so that the long measuring cloth 31 is accurately driven and rotated as the long towel cloth 1 moves. A groove is formed. The distance W between the towel contact point of the length measuring roller 31 and the receiving portion 17a is set to 150 mm, for example. 34 is a gear fixed to the roller shaft 31a, 35 is a gear fixed to the support shaft 29 so as to mesh with the gear 34, and 36 is a disc to be detected fixed to the support shaft 29. The detectors (for example, slits) 36a are provided at equal intervals. 37 is a photo sensor, which is the detected part
36a is detected and a pulse signal is transmitted. Reference numeral 38 denotes a proximity sensor, which outputs an OFF signal and an ON signal, respectively, according to the distance from the object 32 to be detected.

Next, 40 is a drawing mechanism for the long towel cloth 1. In this, 41 is a substrate which is reciprocated between a drawing position shown by a solid line in FIG. 2 and a gripping position shown by a virtual line,
Reference numeral 42 denotes an engaging member provided for detachably engaging the front portion 1b of the towel cloth. For example, the tip end portion of the gripping piece pivotally attached to the substrate 41 in an openable and closable manner is the tip portion of the substrate 41. Together with this, it is configured as a grip portion 43 for gripping the plain weave portion 1b. 44 is an opening and closing cylinder for opening and closing the grip part, the cylinder body
44a is connected to the base plate 41, and the piston rod 44b is a gripping piece.
It is connected to a projecting piece 45 projecting from 42. Next, a pressing mechanism 46 is provided to elastically press down the long towel cloth 1 between the drawing mechanism 40 and the positioning pieces 15 and 17 over substantially the entire width, as shown in FIGS. 8 to 14. It is configured. Here, 47 is a pressing cylinder, and its cylinder body 47a is fixed to the frame 3 by a mounting tool 49. The pressing cylinder 47 is provided with a straightening brake 48 at the lower end portion so that a braking force can be applied to the piston rod 47b. 50 is a support frame fixed to the piston rod 47b,
Reference numeral 51 denotes a support piece fixed to the support frame 50, and two guide rods.
The lower ends of 52, 52 and one detection rod 53 are fixed. The upper ends of the guide rods 52, 52 and the detection rod 53 are connected by a connecting plate 54.
The guide rods 52, 52 are vertically movably supported by a support body 55 fixed to the frame 3, and a dog 56 is fixed to the detection rod 53 at an intermediate portion. 57 is a deceleration switch fixed to the support 55 and is operated by the dog 56. Reference numeral 58 is a correction device provided on the support frame 50. In this straightening device 58, 59 is a guide bolt fixed to the support frame 50, 60 is a cylindrical body which is fitted in the guide bolt 59 so as to be vertically movable, and a head 59 of the guide bolt 59.
It is stopped by a. 61 is the cylindrical body 6 at both ends
A movable frame fixed to 0 and 60, which is arranged substantially horizontally. Reference numeral 62 is a spring support rod that is erected on the upper surface of the movable frame 61, and the upper end portion is inserted into the through hole 50a of the support frame 50. 63
Is a biasing spring fitted to the spring support rod 62,
Is urged downward. Reference numerals 64, 64 are a pair of front and rear leaf springs fixed to the movable frame 61, and are constituted by one member in this example, and the lower end portion thereof inclines downward as shown in FIG. 9 in a natural state. As shown in FIG. 13, a plurality of leaf springs 64, 64 are provided at equal intervals over the entire width of the movement path of the towel 1. A pressing member 65 is fixed to the tip of the leaf spring 64. Reference numeral 66 denotes a receiving plate fixed to the upper surface of the movable frame 61, and receives the spring force of the leaf spring 64 by receiving the upper surface of the leaf spring 64 when the leaf spring 64 is bent in the upward direction as shown in FIG. A set screw 67 for increasing the size is provided. 68 is a straightening confirmation switch attached to the above-mentioned support frame 50.
As shown in the figure, when the support frame 50 descends, the movable frame 61
When it is moved relatively to the side, it is operated by the dog portion 60a of the tubular body 60. Next, in FIG. 2, reference numeral 69 denotes a setting device, which is composed of a receiving frame 70 fixed to the frame 3 and a setting member 72 that is moved up and down by a setting cylinder 71 to hold the long towel cloth 1 therebetween. . A receiving frame 73 is fixed to the frame 3. Each of the above-mentioned mechanisms is controlled by a well-known control mechanism such as a computer.

In the case of the above construction, when the long towel cloth 1 is cut at the central portion of the plain weave portion 1b, first, the long towel cloth 1 is fed from the feeding side to locate the positioning pieces 15, 17.
After passing it through the gap between the two, the leading end of the plain weave portion 1b is pulled out to the position of the cutting blade 5. In this case, each element of the cutting device is in the state shown in FIG. Next, when the cutting device is started,
It operates as shown in the time chart of the figure. First, at the time point of starting (point A), the setting member 72 descends to hold the long towel cloth 1 and the grip portion 43 is open.
From this state, the pull-out mechanism 40 moves to the right in FIG. 2 and stops at the grip position, and the tip of the long towel cloth 1 is received in the grip 43. Next, at the point B, the gripping portion 43 closes to clamp the leading end of the long towel cloth 1, and then at the point C, the setting member 72 moves up to release the clamp of the long towel cloth 1 and the drawer mechanism 40 operates. After moving to the left and returning to the pull-out position, the gripping portion 43 pulls out the long towel cloth 1. Then D
At the point, the straightening device 58 descends, and the pressing members 65, 65 push down the long towel cloth 1 as shown in FIG. 11, whereby the long towel cloth 1 on the frame 3 is moved to the left.
Next, when the dog 56 turns on the deceleration switch 57 at the point E, the descending speed of the piston rod 47b is decelerated and the moving speed of the long towel cloth 1 decreases. Long towel cloth 1
By the movement to the left of, the length measuring roller 31 rotates, and the photo sensor 37 detects the detected portion 36a and transmits a pulse signal. Further, when the long towel cloth 1 under the length measuring roller 31 at the point F changes from the pile weave portion 1a having a large thickness dimension in FIG. 3 to the plain weave portion 1b having a small thickness dimension in FIG. In the state shown in the figure, the detected object 32 approaches the proximity sensor 38, and the proximity sensor 38 outputs an ON signal.
After that, at point G, long towel cloth 1 under the measuring roller 31
Is changed to the next pile woven portion 1a, the object 32 is moved away from the proximity sensor 38 again due to the influence of the thickness, and the output of the proximity sensor 38 becomes an OFF signal.

Next, the control device counts the pulse signals during signal transmission based on the pulse signal of the photo sensor 37 and the ON signal of the proximity sensor 38, and based on the counted number, the direction of passage of the plain weave portion 1b. The length is calculated, and then the moving cylinder 23 is operated at the point H, and as shown in FIG. 7, the distance between the cutting blade 5 and the receiving portion 17a is approximately the length of the plain weave portion 1b calculated by the above calculation. Adjust to halve. The control device controls the operation of each element according to the flowchart of the positioning program shown in FIG. First, when it is confirmed by the count number of the pulse signal that the pile weave portion 1a has moved the position of the length measuring roller 31 by about 100 mm after the plain weave portion 1b has passed the position of the length measuring roller 31, the upper positioning piece 17 at the point I is detected. It descends as shown in FIG. In this case, the distance between the receiving portions 15a and 17a and the length measuring roller 31 is set to about 150 mm, and the long towel cloth 1 has its pile woven portion 1a moved from the position of the length measuring roller 31 by about 100 mm. Moreover, since the length of the plain weave portion 1b is approximately 70 mm, the pile weave portion 1a is provided between the receiving portions 15a and 17a.
Does not remain.

Next, the supporting frame 50 of the pressing mechanism 46 is lowered to the lowest position, the pressing members 65, 65 elastically press the long towel cloth 1 as shown in FIG. 12, and the movable frame 61 biases the spring 63. Is compressed and moved to the side of the support frame 50, the dog 60a at the point J
Activates the straightening confirmation switch 68. Thereafter, the straightening brake 48 is activated at the point K by the actuation signal of the straightening confirmation switch 68 to lock the piston rod 47b. As described above, when the pressing members 65, 65 elastically push the long towel cloth 1 as shown in FIG. 12, the boundary portion 1c of the long towel cloth 1 becomes the receiving portion as shown in FIG. 15a, 17
When the long towel cloth 1 is brought into contact with a, the movement of the long towel cloth 1 to the left is stopped. In this case, since each of the pressing members 65, 65 elastically presses the part of the long towel cloth 1 divided into a plurality of widths,
Each pressing member 65 presses the corresponding width portion of the long towel cloth 1 by the elastic force of the leaf spring 64, and individually pulls out the corresponding width portion of the long towel cloth 1. Therefore, even if the boundary portion 1c of the long towel cloth 1 is distorted obliquely with respect to the receiving portions 15a and 17a as shown in FIG. 13, the elastic deformation amount of each leaf spring 64 as shown in FIG. However, the boundary portion 1c can be brought into contact with the receiving portions 15a and 17a over the entire width and aligned in a straight line.

When the switch 68 is operated as described above, the position of the length measuring roller 31 is set to the pile woven portion 1 of the long towel cloth 1.
It is confirmed by a pulse signal that a has moved about 100 mm and then further moved about 50 mm. That is, it is confirmed that the boundary portion 1c has come to the receiving portion. Then, after a lapse of a short time, for example, 0.5 seconds, after the actuation of the correction brake 48, the set member 72 is lowered at the point L so that the plain weave portion 1b is clamped between the set member 72 and the receiving frame 70 so as not to move. In the above case, when the above confirmation is not made at the time when the switch 68 is operated, the boundary portion 1c is not in contact with the receiving portions 15a and 17a (not reached or passed), so an error is displayed and a cutting device is provided. Stop driving. After the above confirmation, the movable blade 7 is temporarily lowered at the point M to cut the plain weave portion 1b.

In this case, since the distance between the cutting blade 5 and the receiving portions 15a and 17a is adjusted to be about half the length of the plain weave portion 1b, the cutting blade 5 is made to cover the plain weave portion 1b. Cut at approximately the center of the length. After that, the operation of the correction brake 48 is released at the point N, the piston rod 47b is raised, and the correction device 58 is returned to the position shown in FIG. After that, the gripping portion 43 is released at the point O to release the grip of the long towel cloth 1, and the cut towel cloth is dropped downward. Then, at the point P, the positioning piece 17 is lifted to complete the series of operation cycles. After that, by repeating the above operation cycle, the long towel cloth 1 is cut one after another at a substantially central position of the length of the plain weave portion 1b.

As described above, since the long towel cloth 1 is always cut at the substantially central position of the length of the plain weave portion 1b, there is a dimensional error in the length of each plain weave portion 1b due to the above reasons. Even in some cases, the dimensional error can be evenly distributed to the front and rear short towel cloths, and as a result, the dimensional error of the plain weave portion at both ends of the short towel cloth can be kept within the allowable range, and the defective rate of the towel can be reduced. Can be lowered.

In the present application, the cutting blade may be moved with respect to the positioning piece, or both the cutting blade and the positioning piece may be moved relative to each other. The position of the dimension measuring means may be fixed, and only the positioning piece may move. In that case, when it is confirmed that the boundary portion 1c has reached the location of the receiving portion, the movement of the positioning piece with respect to the dimension measuring means relative to the measured value of the moving dimension of the pile weave portion by the dimension measuring means. It is advisable to confirm by adding or subtracting the amount.

[0017]

As described above, according to the present invention, the long towel cloth having the pile weave portion and the plain weave portion alternately in the longitudinal direction is positioned at a fixed position with the positioning piece to cut the long towel cloth. Therefore, it is effective in manufacturing a towel of a fixed size.

In addition, in the present invention, the long towel cloth between the cutting blade and the drawing mechanism is for pushing down the long towel cloth having a wide mutual contact portion in the moving direction of the long towel cloth. The pressing member is moved downward to push down the long towel cloth between the cutting blade and the drawing mechanism, and thereby the long towel cloth is further drawn out, so that the cutting blade and the drawing mechanism are close to each other. However, there is an epoch-making effect that a towel longer than the size in between can be cut.

Further, in the above case, since the pressing member is adapted to spread the towel in the moving direction of the long towel cloth, the towel length can be increased even if the pushing down dimension in the vertical direction (direction of arrow Y in FIG. 2) is small. Therefore, the vertical stroke of the pressing member can be reduced.

The step portion between the upper plain weave portion and the pile weave portion is applied to the positioning piece for positioning, and further, before cutting, a portion near the towel cutting portion is fixed at a position close to the cutting blade using a set member. However, since the long towel is cut on that, there is an effect that the cutting position is not disturbed and a towel having an accurate and finished shape can be formed.

[Brief description of drawings]

FIG. 1 is an overall perspective view.

FIG. 2 is a side view.

FIG. 3 is a side view of the dimension measuring means.

FIG. 4 is a view from the IV direction in FIG.

FIG. 5 is a side view showing a partially omitted operational state of the dimension measuring means.

FIG. 6 is a cross-sectional view showing an operating state of a positioning piece.

FIG. 7 is a side view showing a relative movement state of a cutting blade and a positioning piece.

FIG. 8 is a front view of a pressing mechanism.

9 is a view from the direction of the arrow IX in FIG.

FIG. 10 is a perspective view of a correction device.

FIG. 11 is an explanatory diagram showing an operating state of the correction device.

FIG. 12 is an explanatory diagram showing an operating state of the correction device.

FIG. 13 is a plan view showing a long towel cloth before straightening.

FIG. 14 is a plan view showing the long towel cloth after straightening.

FIG. 15 is an explanatory diagram showing a towel end portion in a product state.

FIG. 16 is a time chart diagram.

FIG. 17 is a flowchart diagram.

[Explanation of symbols]

 1 Long towel cloth 1a Pile weaving section 1b Plain weaving section 1c Border section 5 Cutting blades 15a, 17a Receiving section 26 Dimension measuring means

Claims (1)

[Claims] 1. A cutting blade for a long towel cloth, which is a raw material for forming a towel having a pile woven portion in the central portion and a plain woven portion at both ends, and which has a pile woven portion and a plain woven portion alternately in the longitudinal direction. The cut tip is pulled out along a predetermined movement path by the drawer mechanism, and the long towel cloth between the cutting blade and the drawer mechanism has a long mutual contact part in the moving direction of the long towel cloth. The pressing member for pressing down the long towel cloth is moved downward to press down the long towel cloth between the cutting blade and the drawing mechanism, whereby the long towel cloth is further drawn out, and the plain weave portion of the long towel cloth is the above. When passing below the positioning piece provided on the long towel cloth source side of the cutting blade, the positioning piece is lowered so that the receiving portion of the positioning piece is formed as a step between the plain weave section and the pile weave section of the long towel cloth. Engage The progress of the long towel cloth to stop,
After that, the plain weave portion between the cutting blade and the positioning piece is fixed with a set member, and then the towel is cut off from the long towel with the cutting blade.