JPH0826512B2 - Towel cloth cutting equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus 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. More specifically, the present invention relates to a plain weave portion and a pile weave portion. The present invention relates to a towel cloth cutting device configured to transfer long towel cloths alternately having and in the longitudinal direction and cut the long towel cloth.

[0002]

2. Description of the Related Art In a conventional device for cutting a long towel cloth (for example, a device known from Japanese Patent Application Laid-Open No. 60-59167), a pile weave portion having a relatively thick thickness and a plain weave portion thinner than that are used. The plain weave portion having a predetermined size based on the step portion between them was cut so that the plain weave portion remained at the end. When that disconnection
The leading end of the long towel cloth at the cutting blade was pulled out by a pulling mechanism to a predetermined size for cutting.

[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 is intended to provide a towel cloth cutting device in which the space between the cutting blade and the drawing mechanism is narrowed so that the overall planar shape can be miniaturized.

[0005]

A towel cloth cutting apparatus according to the present invention is a raw material for forming a towel having a pile woven portion at the center and plain weave portions at both ends, and is a raw material for forming a towel in the longitudinal direction. A moving locus for passing a long towel cloth having alternating woven parts is provided, and a cutting blade for cutting the plain weave portion of the long towel cloth is arranged along the moving path, and the length of the cutting blade is set. A receiving portion having a shape such that the tip end engages with a step between the plain weave portion and the pile weave portion of the long towel cloth to prevent the passage of the towel cloth at a proper distance from the sender side of the towel cloth. A positioning piece having the above is arranged along the movement locus, and further, the leading end of the long towel cloth cut by the cutting blade at an appropriate interval is grasped on the long towel cloth drawing side of the cutting blade. The long towel is equipped with a drawer mechanism for pulling out In a long towel cloth cutting device in which the tip of the ground is grasped and pulled out by the grasping portion of the drawer mechanism, and after the predetermined positioning is made by the positioning piece, the long towel cloth is cut by a cutting blade. Between the cutting blade and the drawing mechanism, there is provided a pressing member for pressing down the long towel cloth having a wide mutual contact portion in the moving direction of the long towel cloth, and the cutting blade is moved downward to move the cutting blade. Even if the linear distance between the cutting blade and the grip of the drawer mechanism is shorter than the length of the towel in the longitudinal direction by pushing down the long towel cloth between the grip and the drawer of the drawer mechanism, The length of the towel cloth between the mechanism and the grip portion can be made the same as the lengthwise dimension of the towel.

[0006]

[Function] The tip of the long towel cloth at the cutting blade is pulled out by the drawer mechanism, and the pressing member provided between the cutting blade and the drawer mechanism is lowered to push down the long towel cloth. Even if the distance between the drawing mechanism and the drawing mechanism is short, the towel cloth between the cutting blade and the drawing mechanism becomes sufficiently long. Furthermore, a sufficiently large tension can be applied to the pressed towel cloth. Further, since the pressing members for pressing down the long towel cloth have their contact portions widened in the moving direction of the long towel cloth, the towel length increases even if the pressing down size is small.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 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-60-75).
No. 667) and 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. Here, 11 is a guide rod fixedly supported by the support pieces 9 and 10, and 12 is a guide rod 1.
A notch window 13 is formed in a portion corresponding to the movement locus 2 in a support body that is mounted so as to be movable in the longitudinal direction of the movement locus 2 with respect to 1 and 11. Reference numeral 14 is a supporting arm, 15 is a lower positioning piece fixed to the supporting arms 14 and 14, 16 is a guide pin, and 17 is an upper positioning piece attached to the guide pins 16 and 16 so as to be vertically movable. . The receiving portions 15a and 17a formed on the positioning pieces 15 and 17 are plain weave portions 16 when they are in contact with the plain weave portion 1b of the long towel cloth 1.
Is thin and allows its passage, and the pile weave portion 1a and the plain weave portion 1
Since the pile woven portion 1a suddenly becomes thicker in the state of being in contact with the boundary portion 1c of b, the pile woven portion 1a is formed so as to engage with a step portion having a step as shown in FIG. The cutting blade 5
The distance V between the receiving portion 15a and the receiving portion 15a is approximately half the length (for example, 70 mm) of the plain weave portion 1b of the long towel cloth 1 (for example, 35 m).
m). 18 is a support arm, 19
Is a positioning cylinder for lifting the positioning piece 17, the cylinder body 19a thereof is fixed to the support arm 18, and the piston rod 19b thereof has the positioning piece 1 as shown in FIG.
It is inserted into the through hole 20 a of the hanging piece 20 fixed to the device 7. Reference numeral 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 23b and 24 are piston rods, respectively. Reference numeral 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 integral with the support body 12, and various known moving mechanisms may be used.

Next, reference numeral 26 is a dimension measuring means arranged on the long towel cloth source side of the positioning pieces 15 and 17, and is constituted as shown in FIGS. 3 to 5. Here, 27 is a receiving roller rotatably supported by the frame 3, 28 is a support bracket fixed to the support 12, 29 is a support shaft rotatably supported by the support bracket 28, A swing lever 30 is rotatably attached to the support shaft 29. A roller shaft 31a of a length measuring roller 31 is rotatably attached to a lower end portion thereof, and a detected body 32 is fixed to an upper end portion thereof. There is. 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 roller cloth 1 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,
Reference numeral 35 denotes a gear fixed to the support shaft 29 so as to mesh with the gear 34, reference numeral 36 denotes a detected disk fixed to the support shaft 29, and a large number of detected portions (for example, slits) 36a are provided at equal intervals. Has been. 37 is a photo sensor, which detects the detected portion 36a and transmits a pulse signal. Reference numeral 38 denotes a proximity sensor, which is O depending on the distance from the object 32 to be detected.
Outputs FF and ON signals.

Next, 40 is a drawing mechanism for the long towel cloth 1. In this, 41 is a substrate which is reciprocally moved between a drawing position shown by a solid line in FIG. 2 and a gripping position shown by an imaginary line, and 42 is provided so as to be detachably engaged with the tip 1b of the towel cloth. An engaging member is shown, and for example, the distal end portion of the grasping piece pivotally attached to the substrate 41 so as to be opened and closed is configured as the grasping portion 43 for grasping the plain weave portion 1b together with the distal end portion of the substrate 41. Reference numeral 44 denotes an opening / closing cylinder for opening and closing the grip portion, a cylinder body 44a is connected to the base plate 41, and a piston rod 44b is connected to a projecting piece 45 projecting from the gripping piece 42. Next, 46 is a push-down mechanism, which is a withdrawal mechanism 40.
8 to 14 is configured to elastically push down the long towel cloth 1 between the positioning pieces 15 and the positioning pieces 15 and 17 over substantially the entire width. 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, 51 is a support piece fixed to the support frame 50, and the lower ends of the two guide rods 52, 52 and one detection rod 53 are fixed. Has been done. The guide rods 52, 52 and the detection rod 53
The upper ends of the guide rods 52 and 52 are connected by a connecting plate 54.
Is vertically movably supported by a support body 55 fixed to the frame 3, and the detection rod 53 has a dog 56 at an intermediate portion.
Is fastened. Reference numeral 57 denotes a deceleration switch fixed to the support 55, which is operated by the dog 56.
Reference numeral 58 is a correction device provided on the support frame 50. In the correction device 58, 59 is a guide bolt fixed to the support frame 50, and 60 is a cylindrical body fitted in the guide bolt 59 so as to be vertically movable. There is. Reference numeral 61 denotes a movable frame whose both ends are fixed to the cylindrical bodies 60, 60, which are arranged substantially horizontally. Reference numeral 62 denotes 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. Reference numeral 63 is an urging spring fitted to the spring support rod 62, and urges the movable frame 61 downward. 6
Reference numerals 4 and 64 denote a pair of front and rear leaf springs fixed to the movable frame 61, which are constituted by a single member in this example, and the lower end portion thereof projects obliquely 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. Reference numeral 65 denotes a pressing member fixed to the tip of the leaf spring 64. Reference numeral 66 is a receiving plate fixed to the upper surface of the movable frame 61. As shown in FIG. 12, when the plate spring 64 is bent in the upward direction, the upper surface of the plate spring 64 is received and the spring force of the plate spring 64 is retained. A set screw 67 for increasing the number is provided. 6
Reference numeral 8 denotes a correction confirmation switch attached to the support frame 50. When the movable frame 61 is relatively moved to the support frame 50 side when the support frame 50 is lowered as shown in FIG. It is adapted to be operated by the dog portion 60a. 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 so as to sandwich the long towel cloth 1. . Reference numeral 73 is a receiving frame fixed to the frame 3. The above mechanisms are 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 and the positioning piece 15,
After passing through the space 17, 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. Then start the cutting device,
It operates as shown in the time chart of FIG. 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 gripping position, and the tip end portion of the long towel cloth 1 is received in the gripping portion 43. Next, at the point B, the gripping portion 43 is closed and the tip portion of the long towel cloth 1 is sandwiched,
After that, at point C, the setting member 72 rises to release the holding of the long towel cloth 1 and the drawer mechanism 40 moves leftward to return to the drawing position, and the gripper 43 draws out the long towel cloth 1. Next, at the point D, the straightening device 58 descends, and the pressing members 65, 65 move the long towel cloth 1 to the 11th position.
As shown, the long towel cloth 1 on the frame 3 is moved to the left by pushing down. Next, when the dog 56 turns on the deceleration switch 57 at point E, the descending speed of the piston rod 47b is decelerated, and the long towel cloth 1
Movement speed decreases. When the long towel cloth 1 is moved to the left, the length measuring roller 31 is rotated, 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. 5, the length measuring roller 31 moves to the fifth length. 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, when the long towel cloth 1 under the length measuring roller 31 is changed to the next pile woven portion 1a at the point G, the object 32 is moved away from the proximity sensor 38 again as shown in FIG. The output of the sensor 38 becomes an OFF signal.

Next, the control device uses the photo sensor 37.
Based on the pulse signal of the sensor and the ON signal of the proximity sensor 38, the pulse signal being transmitted is counted, the length in the passing direction of the plain weave portion 1b is calculated based on the counted number, and then the moving cylinder at the point H By operating 23, the distance between the cutting blade 5 and the receiving portion 17a is adjusted to be approximately half the length of the plain weave portion 1b calculated by the above calculation, as shown in FIG. The control device controls the operation of each element according to the flowchart of the positioning program shown in FIG. First, the plain weave portion 1b is used as the length measuring roller 3
When it is confirmed by the count number of the pulse signal that the pile weaving section 1a has moved the position of the length measuring roller 31 by about 100 mm after passing the 1 position, the upper positioning piece 17 descends at the point I as shown in FIG. In this case, the receiving part 1
The distance between 5a and 17a and the length measuring roller 31 is approximately 150 mm.
The long towel cloth 1 is set to the pile weave part 1
Since "a" has moved from the position of the length measuring roller 31 by about 100 mm and the plain weave portion 1b has a length of about 70 mm, the pile weave portion 1a does not remain between the receiving portions 15a and 17a.

Next, the support frame 50 of the pressing mechanism 46 is lowered to the lowest position so that the pressing members 65, 65 move the long towel cloth 1 to the twelfth position.
As shown in the figure, the movable frame 61 is elastically pushed so that the biasing spring 6
When 3 is compressed and moved to the side of the support frame 50, the dog 60a operates the correction confirmation switch 68 at the point J. After that, 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 press the long towel cloth 1 as shown in FIG. 12, the boundary portion 1c of the long towel cloth 1 is moved to the sixth position.
As shown in the figure, the long towel cloth 1 is stopped from moving to the left by being brought into contact with the receiving portions 15a and 17a. in this case,
Since each of the pressing members 65, 65 elastically presses a portion obtained by dividing the width of the long towel cloth 1 into a plurality of parts, each pressing member 6
Reference numerals 5 and 65 respectively press the corresponding width portions of the long towel cloth 1 by the elastic force of the leaf springs 64, and individually pull out the corresponding width portions 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 operates as described above,
It is confirmed by a pulse signal that the position of the length measuring roller 31 has moved by approximately 50 mm after the pile woven portion 1a of the long towel cloth 1 has moved by approximately 100 mm. That is, the boundary 1
Confirm that c has arrived at the catch. Then, after a lapse of a short time, for example, 0.5 seconds, after the correction brake 48 is activated, the set member 72 is lowered at the point L to receive the receiving frame 7
The plain weave portion 1b is clamped between 0 and 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 has the receiving portion 15a,
Since it is not in contact with 17a (not reached or passed), an error is displayed and the operation of the cutting device is stopped. 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, the cutting blade 5 and the receiving portions 15a, 17
Since the distance between the plain weave portion 1a and the plain weave portion 1b is adjusted to be approximately half the length of the plain weave portion 1b, the cutting blade 5 cuts the plain weave portion 1b at a substantially central position of the length. Then, at point N, the operation of the straightening brake 48 is released, the piston rod 47b is raised, and the straightening device 58 is returned to the position shown in FIG. After that, the grip portion 43 is released at point O to release the grip of the long towel cloth 1, and the cut towel cloth is dropped downward. After that, positioning piece 1 at point P
7 is raised to end the series of operating 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, there is provided a movement locus for passing a long towel cloth having pile weave portions and plain weave portions alternately in the longitudinal direction, and along the movement locus, the above long length is provided. A cutting blade for cutting the plain weave portion of the towel cloth is provided, and the long piece of towel cloth is cut by positioning the fixed position with the positioning piece, which is effective for manufacturing a fixed-sized towel. .

Further, in the present invention, a pressing member for pushing down the long towel cloth is provided between the cutting blade and the drawing mechanism so as to widen the mutual contact portions in the moving direction of the long towel cloth. And since it is designed to push down the long towel cloth between the cutting blade and the drawing mechanism by moving it down, even if the cutting blade and the drawing mechanism are brought close to each other to reduce the planar shape of the device, There is an epoch-making effect that the length of the towel located between the cutting blade and the drawing mechanism in the longitudinal direction can be made sufficiently long, which is useful for downsizing the device.

Further, in the above case, since the pressing member is wide in the moving direction of the long towel cloth, the towel length can be increased even if the pressing down size in the vertical direction (direction of arrow Y in FIG. 2) is small, and therefore the pressing is performed. The vertical stroke of the member can be reduced.

[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 part 1b Plain weaving part 1c Boundary part 5 Cutting blades 15a, 17a Receiving part 26 Dimension measuring means

Claims (1)

[Claims] 1. A movement for passing 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 end portions and which has a pile woven portion and a plain woven portion alternately in the longitudinal direction. A locus is provided, and a cutting blade for cutting the plain weave portion of the long towel cloth is arranged along the movement locus, with an appropriate interval on the long towel cloth source side of the cutting blade. , A positioning piece having a receiving portion whose tip portion is shaped so as to engage with a step portion between the plain weave portion and the pile weave portion of the long towel cloth and prevent the passage thereof is arranged along the movement locus. Further, the long towel cloth pull-out side of the cutting blade is provided with a drawer mechanism for grasping and pulling out the leading end of the long towel cloth cut by the cutting blade at an appropriate interval, Use the pull-out mechanism to grip the tip of the towel cloth.
In a long towel cloth cutting device, which is configured to grasp and pull out, and to perform predetermined positioning with the positioning piece, and then cut the long towel cloth with a cutting blade, between the cutting blade and the drawing mechanism. the, between the grip portion of the long towel comprising a pressing member for pushing down long towel dough wide per unit of mutually moving direction of the fabric, this pressing member is moved downward to be the cutting blade and the extraction mechanism By pushing down the long towel cloth in the
The linear distance between the
The towel cloth between the cutting blade and the grip of the drawer mechanism.
A towel cloth cutting device, wherein the length of the towel cloth is the same as the lengthwise dimension of the towel.