JPH07266288A - Device for automatically cutting strip of cloth to regular size - Google Patents

Abstract

PURPOSE:To draw out without trouble even an adhesive-applied strip of cloth for use as a dishtowel and to enable it to be continuously cut to the correct length by gripping the strip of cloth using a cutting-mechanism-equipped gripping device, forcing it out of a cloth strip feeder horizontally, and cutting it. CONSTITUTION:Immediately after the cutting process of a gripping device 2B, a gripping device 2A gripping the end of a piece of cloth cut from a strip of cloth moves the piece of cloth by the appropriate size in a direction for drawing out a strip W of cloth, and then the upper pressure means 24 and the lower support 27 of the gripping device 2A are opened to release the piece of cloth. Next, the gripping device 2B newly gripping the end of the strip W of cloth with the upper pressure means 24 and the lower support 27 closed draws out the strip W of cloth of a cloth feeder 1 by a fixed size. The gripping device 2A is moved to a specific position upstream of the strip W of cloth and held in that position, and then cuts a portion of cloth next to and downstream of the position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the field of fiber processing, and is an automatic constant-length cutting machine for a band cloth capable of continuously cutting a band-shaped synthetic fiber cloth or a cotton cloth into a fixed size. Regarding

[0002]

2. Description of the Related Art In order to automatically and continuously cut a belt-shaped cloth into a certain size, an automatic length-cutting machine has been used, and its concrete structure is, for example, a feed roller that is driven to rotate. While feeding the fabric downward, the fabric thus fed is cut into a certain size by an appropriate cutting device.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned conventional cutting device, when a band cloth or the like to be wiped with an adhesive is applied, the adhesive is used as an essential part of a machine (for example, a feed roller). However, there is a problem in that the smooth supply of the cloth may be impaired and the appropriate cutting of the cloth becomes difficult or impossible. An object of the present invention is to provide an automatic constant length cutting machine for a band cloth which can solve such a problem.

[0004]

In order to achieve the above object, according to the present invention, a cloth feeding device capable of feeding a band cloth in a fixed direction and a pair of cuttings which are reciprocally moved in a crossing manner on a horizontal line. It is characterized in that a gripping device with a mechanism and a control device for performing related operations of these gripping devices are provided.

In this case, for example, a pair of gripping devices with a cutting mechanism are arranged in an opposed manner via horizontal guide rods on each side of a specific horizontal line, and the gripping devices with a cutting mechanism are opened and closed vertically. The upper pressing means and the lower support are provided.

[0006]

In any one of the gripping devices with a cutting mechanism (the former gripping device), by closing the upper pressing means and the lower support, the leading end of the band cloth prepared in the cloth feeding device is grasped and pulled out by a predetermined size. The other gripping device with a cutting mechanism (the latter gripping device) is in a state where interference with the former gripping device is avoided by the opening operation of the upper pressing means and the lower support, and the upstream side of the band cloth thus drawn out is specified. After moving to the position and gripping the position, the position immediately downstream of the position is cut. Then, the former gripping device, which grasps the tip of the cloth piece separated from the band cloth by cutting, moves the cloth piece immediately after the cutting process of the latter gripping apparatus or in the pulling direction of the cloth cloth by an appropriate size. After doing so, the opening of the upper pressing means and the lower support of the same is operated to release the cloth piece. Subsequently, the latter gripping device, which is in a state of newly gripping the leading end of the band cloth by the closing operation of the upper pressing means and the lower support, pulls out the band cloth of the cloth feeding device by a certain size as described above, while the former gripping device. Is moved to a specific position on the upstream side of the band and gripped at that position, and then the position immediately downstream of that position is cut. After that, the same operation is repeated, the band cloth is cut one after another, and the cloth pieces having a certain size are continuously manufactured.

[0007]

1 is a perspective view showing an embodiment of a cutting machine according to the present invention, FIG. 2 is a front view showing a gripping device with a cutting mechanism of the cutting machine, and FIG. 3 is a section xx of FIG. Sectional drawing, FIG. 4 is a sectional view of a guide device with a band stopping mechanism of the same machine, FIG. 5A and FIG. 5B
[Fig. 6] is an explanatory view showing the operation of the aircraft.

The cutting machine of the present invention comprises a cloth feeding device 1 capable of pulling out the band cloth w in a fixed direction f1 and a pair of gripping devices 2 with a cutting mechanism which are reciprocally moved on a fixed straight line trajectory.
A and 2B, and a control device (not shown) for performing related operations of the gripping devices 2A and 2B.

Accordingly, the cloth feeding device 1 is formed by fixing a pair of locking plates 4a and 4a, which are adapted to lock the shaft 3 of the band cloth w wound in a roll shape, to the machine body frame 5. It is provided with a plate device 4 and a guide device 6 with a band cloth stopping mechanism which smoothly draws out the band cloth w and stops the drawing out as needed.

At this time, the guide device 6 with the belt stopping mechanism is provided with a pair of vertical members 7a and 7b on each side of the machine body frame 5 and is parallel to each pair of vertical members 7a and 7b as shown in FIG. A pair of guide rails 8a, 8b are fixed, a bearing 9 is supported on each pair of guide rails 8a, 8b so as to be vertically displaceable, and the shaft 10a of the guide roller 10 is mounted via the bearings 9, 9 provided in this way. Driving devices (such as air cylinders) 11 for supporting and vertically moving each bearing 9 are provided, and an elastic strip made of rubber or the like is provided directly above the guide roller 10 via a plate member 12 and a square member 13. The member 14 is fixed.

The gripping device 2A with a cutting mechanism has a body frame 5
At least two pairs of upper and lower bearings 18a and 18b are arranged side by side in a horizontal direction on a slide plate 17 in which a pair of upper and lower horizontal guide rods 15 and 15 fixed to each other are guided by slide members 16 and 16 so as to be horizontally displaced. And each of these pairs of bearings 18
The guide shafts 19 ... Are fitted into the a and 18b slidably in the vertical direction, and the fittings 20 are fixed to both ends of the respective guide shafts 19.
In addition to fixing the support plate 21 via a and 20b, a driving device (for example, an air cylinder) (not shown) for vertically moving the support plate 21 is provided, and the support plate 21 is provided.
A pair of upper and lower support fittings 22a, 22 at the upper and lower positions of the inner surface of the
b are arranged in parallel in the horizontal direction, and a plurality of guide shafts 23 ...
, And the guided cylinders 25a provided at the base ends of the arm members 25 of the upper pressing means 24 on these guide shafts 23.
And a drive device (not shown) for vertically moving the upper pressing means 24 in addition to the external fitting of the upper pressing means 24. The upper pressing means 24 is provided below the inner side surface of the support plate 21. The structure is such that the lower support 27, which is pressed against the pressing body 26 from above, is fixed.

At this time, a cutting mechanism 28 is attached to the upper pressing means 24 and the lower support 27, and this cutting mechanism 28 is used when the band cloth w is easily melted by heat like chemical fiber. Is a heat cutter. On the other hand, when the band cloth w is not easily melted by heat like cotton cloth, it is a shirring cutter.

In this embodiment, a heat cutter is used, and its concrete structure is as follows.

That is, the swing drive motors 29, 29 are fixed to the respective end portions on one side surface of the pressing body 26, and the drive shaft 30 coupled to the output shaft 29a of each motor 29 as shown in FIG. The arm member 31 is fixed to the tip of the shaft hole provided in the pressing body 26, and the support shaft 32 is projected from the tip of the arm member 31. The rod member 33 is supported horizontally via the two support shafts 32, 32, and
The insulating plates 34a and 34b are projected downward from both ends of the heating plate 3, and the heating wire 35 is inserted through the insulating plates 34a and 34b.
On the other hand, on one side of the lower support 27, a groove 36 having substantially the same length as that of the heating wire 35 is provided on one side surface of the lower support 27, and the upper ends p and p of the groove wall are cuts of the band cloth w. Set to a height suitable for.

Reference numeral 37 is an elastic strip member provided on the cloth grip portion of the lower support 27, and 38 is an elastic strip member provided on the cloth grip portion of the pressing body 26. Further, 39 is a retaining ring fixed to the support shaft 32, 40 is an input member of the swing drive motor 29, and 41 is a void.

The gripping device 2A with a cutting mechanism is moved along the guide rods 15 and 15 by the horizontal drive device 42A. The horizontal drive device 42A in this embodiment is as follows.

That is, a screw shaft 43 rotated by a servo motor (not shown) is horizontally arranged on the machine body frame 5, and a nut body 44 screwed on the screw shaft 43 is mounted on the support plate 2.
It is fixed to 1 and the gripping device 2A with a cutting mechanism is reciprocally moved in the horizontal direction by the rotation operation of the screw shaft 43.

The other gripping device with a cutting mechanism 2B and its horizontal drive device 42B are the same as the above-mentioned gripping device with a cutting mechanism 2A and horizontal drive device 42A in the machine body frame 5.
Are provided symmetrically on the opposite side of the side where
The configuration is made in conformity with these, and in the figure, corresponding parts of the both are denoted by the same reference numerals.

Reference numeral 45 denotes a table device provided below the movement loci of the gripping devices with cutting mechanism 2A, 2B. The upper surface m of the table 45a is associated with the horizontal reciprocal displacement of the gripping device with cutting mechanism 2A, 2B. It is supposed to descend sequentially. At this time, the table 45a is automatically replaced with another table (not shown) when the upper surface m of the table 45a reaches the minimum height, and the replaced table operates similarly to the previous table 45a. It is preferable for efficiency.

Reference numeral 46 denotes a cloth pressing device provided above the movement loci of the gripping devices 2A and 2B with a cutting mechanism.
A drive device (for example, an air cylinder) fixed to 46
The holding frame 46b is displaced downward by a.

An example of use of the product of the present invention constructed as described above and its operation will be described. The operator inputs necessary information such as the cut length of the band cloth w on the operation panel of the control device (not shown), and the cloth supply device 1 is in the state of being wound into a roll as shown in FIG. After setting, the switch is operated to cause one of the grasping devices with a cutting mechanism 2A at the work start position to grasp the tip thereof as shown in (a) of FIG. 5A. The gripping of the band w in this case is performed by lowering the upper support means 24 along the guide shaft 23 after the lower support body 27 is displaced upward together with the support plate 21 in response to a command from the control device. , The pair of elastic strip members 37, 38 are arranged so as to press the strip w. After finishing such preparation,
The operation of the apparatus is started, so that the respective units are automatically and sequentially operated by the control device as described below.

That is, the gripping device with cutting mechanism 2A starts to move in the pulling-out direction f1 while holding the band w as shown in FIG. 5A by the operation of the horizontal drive device 42A. The other gripping device with cutting mechanism 2B
Is in the direction f from the position p1 at the start of work with the upper pressing means 24 and the lower support 27 left open vertically.
The movement starts in the reverse direction f2 of 1. In the middle of this movement, the two gripping devices with a cutting mechanism 2A, 2B intersect on the same straight line trajectory, but one gripping device with a cutting mechanism 2A supports the upper pressing means 24 and the lower support of the other cutting device 2B. Since they pass through the body 27, they do not interfere with each other.

Thus, as shown in FIG. 2B, the gripping device 2A with the cutting mechanism is stopped when the gripping device 2B with the cutting mechanism is moved by the dimension based on the information inputted on the operation panel, and the gripping device 2B with the cutting mechanism is It is stopped when the gripping / cutting reference position p2 of the band cloth w is reached. In connection with this, the guide roller 10 of the guide device 6 with the band stopping mechanism of the cloth feeding device 1 is raised,
The band cloth W is sandwiched between the guide roller 10 and the elastic strip member 14, and its withdrawal is stopped.

Subsequently, as shown in (c) of the figure, the gripping device 2B with a cutting mechanism grips the specific position on the upstream side of the band w by the pair of elastic strip members 37, 38 by the same operation as described above. After this gripping, the cutting mechanism 2 operates.
8 is operated, that is, in FIG. 2 and FIG. 3, the drive shafts 30 ...
.. and the arm member 31 ..
5 is energized to be in a burning state. As a result, the heating wire 35 is located at the constant depth position 3 in the groove 36 of the lower support 27.
It operates so as to move to 5 ', and in this process, it comes into contact with the upper ends p of the groove walls and the band w located at p, and melts it as shown in FIG. 5B (d). The cloth piece w1 thus cut has its leading end gripped by the gripping device with a cutting mechanism 2A, and its rear end is released.

Subsequently, the gripping device with a cutting mechanism 2A operates so as to release the cloth piece w1 immediately after the cutting process of the gripping device with a cutting mechanism 2B or while moving in the drawing direction f1 of the band w. 2, the upper pressing means 24 is first displaced upward along the guide shaft 23, and then the lower support 27 is displaced downward together with the support plate 21. As a result, as shown in (e) of FIG. 5B, the front and rear ends of the cloth piece w1 are released and the entire cloth piece is placed on the upper surface m of the table 45a, and the cutting device with a cutting mechanism 2A receives the input information. It is stopped when the specific position p1 based on it is reached.

After that, the guide roll 10 is lowered so that the band cloth w can be pulled out, and this time, the gripping device 2B with the cutting mechanism holds the band cloth w and the pulling direction of the band cloth w is kept. It operates to move to f1,
After that, the above-described operations (a) to (e) in FIGS. 5A and 5B are performed in a state in which the gripping devices 2A and 2B with a cutting mechanism are exchanged, and the continuous operation in FIG. As shown in (f), the cloth pieces w1 having a constant length are stacked one after another on the upper surface m of the table 45a, and the height of the cloth piece w1 at the uppermost stage is a constant height due to the lowering of the table 45a. Held in position.

Thus, every time the number of the cloth pieces w1 on the table 45a increases, for example, 50 to 100, the driving device 46a of the cloth pressing device 46 is activated, as shown in FIG. 5B (f). The pressing frame 46b is temporarily lowered to press the cloth pieces w1 ... On with an appropriate force.

When the upper surface m of the table 45a is lowered to a certain height, it is automatically replaced with another empty table, which allows the cloth piece w1 ... to be cut without requiring a long interruption of the cutting operation.・ It can be taken out.

[0029]

According to the present invention configured as described above,
Since the gripping device with a cutting mechanism grips the band cloth and forcibly pulls it out horizontally from the band cloth feeding device to cut it, even if it is used as a wiping cloth, a band to which adhesive is applied is applied. Even a cloth or the like can be pulled out without trouble and continuously cut into an accurate length.

According to the second aspect of the present invention, due to the related operation of alternately crossing the pair of gripping devices with a cutting mechanism over a short distance, the device having a proper cutting length can be swiftly manufactured while keeping the device compact. Will be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a cutting machine according to the present invention.

FIG. 2 is a front view showing a gripping device with a cutting mechanism of the same machine.

FIG. 3 is a cross-sectional view showing a section xx in FIG.

FIG. 4 is a cross-sectional view of a guide device with a band stopping mechanism of the aircraft.

FIG. 5A is an explanatory diagram showing the operation of the aircraft.

FIG. 5B is an explanatory diagram showing an operation of the same aircraft.

[Explanation of symbols]

 w band cloth f1 fixed direction 1 cloth supply device 2A and 2B gripping device with cutting mechanism 15 horizontal guide bar 24 upper pressing means 27 lower support

Claims (2)

[Claims] 1. A cloth feeding device capable of feeding a band cloth in a fixed direction, a pair of gripping devices with a cutting mechanism which are reciprocally moved in a crossing manner on a horizontal line, and these gripping devices are operated in association with each other. An automatic constant-length cutting machine for band cloth, which is provided with a control device for. 2. The gripping device with a cutting mechanism is provided with an upper pressing means and a lower support which are opened and closed in the vertical direction, and the upper pressing means and the lower support of one of the gripping devices with a cutting mechanism are closed. Then, it operates so as to grasp the band cloth and pull it out by a certain size, while the upper pressing means and the lower support of the other grasping device with the cutting mechanism are opened to allow the other one of the grasping device with the cutting mechanism. The automatic standard length measuring device for a band cloth according to claim 1, wherein the band cloth is cut when the cloth band moves in a direction opposite to the pull-out direction of the band cloth and reaches a certain position in a state where interference is avoided. Cutting machine.