JPH0759454B2 - Winding device for strips - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for winding a strip such as polyethylene, polypropylene or vinyl chloride.

[0002]

2. Description of the Related Art Conventionally, a film made of a thermoplastic resin such as polyethylene, polypropylene or vinyl chloride is extruded by an extruder in a molten state of a raw material and supplied to a die. Of the so-called inflation method or T-die which is formed into a bag-shaped or sheet-shaped strip having a diameter of about 30 to 2000 mm and a thickness of about 5 to 200 μm while being supplied with the pressurized air and expanding in a tubular shape. The strip-shaped body manufactured by the method is wound around a predetermined length of a substantially straight tube-shaped core body called a paper tube or the like.

In such a prior art, when the strip is wound around the core for a predetermined length and becomes so-called full winding, the worker removes the full winding coil from the apparatus each time. , It is necessary to attach a new core, which is extremely troublesome. In particular, when many strip-shaped coils are continuously manufactured, the work is performed even at night, and it is desired to reduce the labor of the work.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a belt-shaped body which can continuously wind a belt-shaped body without trouble and efficiently produce a large number of belt-shaped coils. It is to provide a winding device.

[0005]

SUMMARY OF THE INVENTION The present invention has a pair of longitudinal oscillating members that are angularly displaced between a predetermined first position and a second position, and a strip-shaped body between both ends of these oscillating members. The cylindrical members to be wound are respectively sandwiched, and the core member arranged at the first position is rotationally driven about its rotation axis to wind up the band-shaped member, and then the rocking member. The core body is supplied between the winding means for angularly displacing the coiled coil body to move the coiled coil body to the second position and the end portions of the pair of rocking members at the second position. Means for measuring the winding length of the strip-shaped body wound by the winding means,
When the winding length of the strip reaches a predetermined value in response to the output from the measuring means, a means for cutting the strip on the upstream side of the strip in the supply direction of the strip, and a winding means. A means for storing the plurality of strip-shaped body coils wound up by the storage means above the winding means, and a means for transporting the strip-shaped body coil at the second position to the storage means. It is a device for winding a strip-shaped body.

[0006]

According to the present invention, the strip-shaped body to be wound on the core body by the winding means has its winding length measured by the measuring means, and is wound on the core body at the first position. When the predetermined winding length is reached, the strip is cut by the cutting means in response to the output from the measuring means.
When the strip is wound at the first position in this way, the swing member is angularly displaced, and the strip coil is moved from the first position to the second position. The strip-shaped body coil thus arranged at the second position is transported by the transport means and supplied to the storage means. This storage means stores the strip coil each time the strip is wound in a coil shape at the transporting means and thus at the second position. In this way, it is possible to store a plurality of strips by winding the strip that has been automatically supplied in a coil shape.
Even when many strips are continuously wound, the winding operation can be performed without requiring manpower, and the production efficiency is remarkably improved.

[0007]

1 is a simplified front view of an embodiment of the present invention, and FIG. 2 is a side view as seen from the left side of FIG. The winding device 1 of the present embodiment basically has a pair of longitudinal rocking members 2 which are angularly displaced between a predetermined first position P1 and a second position P2, and both ends of these rocking members 2 are basically arranged. The core body 4a arranged at the first position P1 by sandwiching the tubular core body 4 around which the strip-shaped body 3 is to be wound around each part (in the case of generically, the subscript a is omitted for the sake of illustration). May be rotated around its rotation axis to wind up the band-shaped body 3 and then the swing member 2 is angularly displaced to move the coil-shaped band-shaped body coil C to the second position P2. The winding means 5 moving to the above, the means 6 for supplying the core body 4b between the ends of the pair of swinging members 2 at the second position P2, and the strip-shaped body wound by the winding means 5. 3 is a means for measuring the winding length of the rotary counter 7, and in response to the output from the rotary counter 7, Is a predetermined value, the cutting means 8 for cutting the strip 3 between the first position P1 and the second position P2, and the plurality of strip coils C wound by the winding means 5 A storage means 9 for storing above the winding means 5 and a transfer means 10 for transferring the strip-shaped coil C at the second position P2 to the storage means 9 in a state in which it can be taken out and held. .

FIG. 3 is a system diagram showing a schematic structure of the band-shaped body forming apparatus 12. The molding device 12 for forming the band-shaped body 3 is such that a thermoplastic synthetic resin material such as polyethylene, polypropylene or vinyl chloride is put into a hopper 13 and melted by heat in an extruder 14 and then a screw 15 is used. The heat-melted fluid thermoplastic synthetic resin material is supplied to the die 16. Pressurized air from the compressor 17 is supplied to the die 16, and air from the centrifugal fan 102 is supplied from a slit hole 101 inside the annular duct 100 provided in the upper portion of the die 16 to form a cylindrical shape. It is sprayed on the outer surface of the film and the outside is cooled and solidified. The annular synthetic resin extruded from the extrusion port 18 in this way is formed into a tubular film having a diameter of about 30 to 2000 mm and a thickness of about 5 to 200 μm, and a pair of pinch pins at its upper end. It is pinched by the rollers 19 and 20,
It is guided to the vicinity of the first position P1 via the guide rollers 21 and 22.

Referring again to FIGS. 1 and 2, the storage means 9 has a pair of endless conveyor chains 23, 24, and each conveyor chain 23, 24 is a coaxial pair of sprockets. It is wound around the wheels 25 to 31. The shaft rods of the sprocket wheels 25 to 31 are rotatably supported by the frame 32 about the respective rotation axes. A chain sprocket 33 is coaxially fixed to the sprocket wheel 30.
The power from the sprocket 35 is transmitted to the roller 3 via the roller chain 34. This sprocket 35 is a speed reducer 3
6 is fixed to the output shaft, and the speed reducer 36 has a motor 37
The rotational force from is input. Therefore, when the motor 37 is energized, its rotational force is decelerated by the speed reducer 36 and guided to the sprocket wheel 30 via the sprocket 35, the roller chain 34, and the sprocket 33, whereby each chain 23, 24 is indicated by arrow B. It is driven to travel in the direction. A plurality of (12 in this embodiment) insertion shafts 38 are connected to the chains 23 and 24 at equal intervals in the direction in which the chains 23 and 24 extend. The respective axes of these insertion shafts 38 are substantially horizontal, and the insertion coil 38a arranged at the lowermost position is provided with the third strip coil C from the second position P2 of the winding means 5 by the conveying means 10. It is guided to the position P3, conveyed along the axial direction of the insertion shaft 38a and moved to the fourth position P4, and the central opening of the core body 4 is externally inserted onto the insertion shaft 38a. When each chain 23, 24 is driven to travel in the direction of the arrow B by one stroke L in this state, the strip coil C moves up and the new insertion shaft 38 is arranged at the fourth position P4.

The conveying means 10 is a double-acting cylinder 1 which is angularly displaced in the directions of arrows D1 and D2 around the axis of the pivot 40.
03, a receiving plate 43 that is bent in a generally concave shape is fixed to the piston rod of the double-acting cylinder 42. With the piston rod of the double-acting cylinder 103 extended and the double-acting cylinder 42 being angularly displaced in the direction of arrow D1 so that its axis is substantially vertical, the receiving plate 43 is at a position indicated by an imaginary line 44. In this state, when the double-acting cylinder 42 is biased by pressure, the piston rod extends and the phantom line 45
Then, the strip-shaped coil C located at the second position P2 is supported. In this way, the double-acting cylinder 42 is again pressure-biased while supporting the strip coil C, and the receiving plate 43 descends from the position indicated by the phantom line 45 to the position indicated by the phantom line 44. When the piston rod of the moving cylinder 103 is retracted, the double-acting cylinder 42 is angularly displaced in the direction of arrow D2, and the strip-shaped coil C on the receiving plate 43 is arranged at the third position P3 while rolling due to its own weight. It is moved and supported on the receiving plate 46 that is present. This receiving plate 46 has a third position P3 and a fourth position P3.
It reciprocates between the positions P4 in the arrow E1 and E2 directions. As a result, the strip-shaped coil C on the receiving plate 46 is moved to the third position P.
It is conveyed from 3 in the arrow E1 direction, supplied to the fourth position P4, and can be inserted and attached to the insertion shaft 38 as described above.

FIG. 4 is a perspective view showing a simplified concrete structure of the winding means 5. The pair of rocking members 2a, 2
A shaft rod 49 is inserted through each longitudinal center position of b, and one end of the shaft rod 49 in the axial direction is connected to a drive source 50 composed of a motor and a speed reducer.
The other axial end of 9 is supported by a support member 51. In such a state, the shaft rod 49 is angularly displaced by 180 ° around the arrow F1 by the driving force from the driving source 50, and stops at each of the first and second positions P1 and P2.

As shown in FIG. 5, frustoconical fitting pieces 53 are fixed to both ends of one swing member 2a in the longitudinal direction. A double-acting cylinder 54 is fixed to both ends of the other swinging member 2b in the longitudinal direction. A piston rod 56 of this double-acting cylinder 54 allows the swinging member 2b to pass inward in the thickness direction. A fitting piece 55 having the same shape as that of the fitting piece is fixed to the tip of the protruding piece. The core body 4 supplied by the supply means 6 is clamped by the fitting pieces 53 and 55. In this state, the swinging members 2a and 2b are angularly driven in the arrow F1 direction around the axis of the shaft rod 49. Each fitting piece 5 at the second position P2
When the strip-shaped coil C gripped by 3, 55 is released, the double-acting cylinder 54 is biased by pressure to retract the piston rod 56, which causes the fitting piece 55 to move.
When the core body 4 is separated from the core body 4, the fitted state of the core body 4 is released, and the strip-shaped body coil C falls downward by its own weight. After this, as described above, the receiving plate 43 immediately below the second position P2 has risen to the position indicated by the imaginary line 45, and therefore the strip-shaped coil C rides on the receiving plate 43 at the second position P2. Listed.

On both sides of the rocking members 2a, 2b near the shaft rod 49, cam pieces 105 forming a pair are provided, and heat generated by a heat transfer wire or the like is provided between the cam pieces 105 facing each other. A rod is arranged so as to extend between the rocking members 2a and 2b. These cam pieces 105 and the heating rod 10
6 constitutes the cutting means 8.

FIG. 6 is a sectional view showing a concrete structure of the supply means 6. A supply unit 6 is provided between the drive source 50 of the winding unit 5 and the support member 51. A pillar 57 is erected substantially vertically on the base 56, and a pin 58 is supported on the free end of the pillar 57. One end of a connecting piece 59 is connected to the pin 58, and the piston rod 61 of the double-acting cylinder 60 is connected to the other end of the connecting piece 59. Pin 5
Further, one end portion in the longitudinal direction of the link member 62 in the form of a long rod is fixed to 8, and the connecting piece 63 is pin-coupled to the other end portion by the pin 64. The connecting piece 63 also has a pin 65.
One end of the link member 66 provided in parallel with the link member 62 in the longitudinal direction is pin-coupled, and the other end of the link member 66 in the longitudinal direction is pin-coupled to the column 57 by the pin 67. The link member 62, 66 and the pins 58, 64, 65, 67 form a link 68.

A generally L-shaped lifting member 69 is fixed to the connecting piece 63, and the lowermost core of the core bodies 4 placed in parallel on the guide rail 70. The body 4b is mounted. The guide rail 70 is also provided on the front side with respect to the paper surface of FIG. 6, and the core body 4 is supported between the guide rails 70. These guide rails 7
No. 0 is attached to the base 56 by an attaching member 71 so as to incline downward toward the left in FIG. Each guide rail 70 has a substantially L-shaped cross section perpendicular to the axis,
An auxiliary member 72 extending along the longitudinal direction of the guide rail 70 is fixed to the lower portion thereof. A detection switch SW is fixed near the central position in the longitudinal direction of the auxiliary member 72, and the actuator 73 thereof is pressed from the lower end portion of the guide rail 70 to the upstream side by, for example, the third core body 4c, thus guiding the guide member 70. When the number of core bodies 4 on the rail 70 is reduced to two, the switching mode is changed and a buzzer or the like is sounded to notify that the core bodies 4 are reduced. A shaft rod 74 is attached to the lower end portion of the auxiliary member 72, that is, in the vicinity of the left end in FIG. 6, and a torsion spring 75 is inserted and attached to the shaft rod 74. The torsion spring 75 biases the contact piece 76 fixed to the shaft rod 74 in the arrow G direction, and elastically contacts the contact piece 77 fixed to the link member 66. In this state, the angular displacement in the arrow G direction is prevented. One end of a connecting piece 78 is fixed to the shaft rod 74, and a stopper 80 is pin-connected to the other end via a pin 79. A long hole 81 extending along the longitudinal direction of the stopper 80 is formed, and a guide protrusion 82 fixed to the auxiliary member 72 is fitted into the long hole 81 and guided.

The operation of the winding device 1 having the above structure will be described. As shown in FIG. 7 (1), the length of the strip 3 supplied from the forming device 12 is measured by the rotary counter 7, and when the length reaches a predetermined length, the swing member 2 is displaced by 180 °. Then, the strip coil C is moved to the second position P2 as shown in FIG. 7 (2). When the strip-shaped coil C is arranged at the second position P2, the cutting means 8 is energized in the middle thereof, and the cam piece 105 rotates in accordance with the angular displacement operation of the swinging member 2 and is arranged above. The heating rod 106 of the cam piece 105 that is in contact with the belt-shaped body extending between the first and second positions P1 and P2 melts and cuts. The portion separated from the strip-shaped coil C in this way is the new core body 4 arranged at the first position P1.
The band-shaped body is wound by adhering to the adhesive previously applied to the core body 4, and the core body 4 is rotationally driven to wind up the band-shaped body, and the rotary counter 7 performs a new counting operation as described above. The winding operation which starts and reaches a predetermined winding length is measured. Thus, as shown in FIG. 7C, the strip-shaped body is wound around the new core body 4 at the first position P1, and the strip-shaped body coil C arranged at the second position P2 is provided with each fitting piece. It is separated from between 53 and 55.

A fitting piece 5 for holding, from both sides, the core body 4 of the strip-shaped coil C which has been wound and is arranged at the second position P2.
One of the fitting pieces 55 of 3, 55 is a double-acting cylinder 54.
When the piston rod 56 is retracted, its holding state is released, and the strip-shaped coil C falls by its own weight onto the receiving plate 43 arranged immediately below it. The receiving plate 43 on which the strip-shaped coil C is mounted is angularly displaced and tilted in the direction of the arrow D2, whereby the strip-shaped coil C on the receiving plate 43 moves on the receiving plate 46 while rolling, and the stopper 107 is formed. Abut and stop.

When the receiving plate 43 is inclined in the direction of arrow D2, as shown in FIG.
The core bodies 4b arranged in the front row above 0 are supplied to the second position P2 by the ascending operation of the link 68, and the retracted fitting piece 55 moves forward in the direction approaching the facing fitting piece 53. The core body 4b is clamped. The link 68 returns to the initial position, and the next core is supplied onto the elevating member 69. At this time, the stopper 80 is retracted below the guide rail 70, and when the elevating member 69 is raised, the stopper 80 protrudes above the guide rail 70 as shown in FIG. 8B. The core body 4 is locked. When the number of the core bodies 4 is three including the core bodies mounted on the elevating member 69, for example, the alarm sound is emitted by the notifying means. In this way, when the link 68 returns to the initial position, the receiving plate 43 is angularly displaced in the direction of the arrow D1 and the second position P is reached.
Return to directly below 2. The strip-shaped coil C arranged on the receiving plate 46 is moved in the direction of the arrow E1 by the conveying means and is displaced from the third position P3 to the fourth position P4. At this time, the insertion shafts 38 provided in the chains 23 and 24 are inserted into the core body 4, and the motor 37 is urged to move the chains 23 and 24.
24 is driven in the direction of arrow B, and is stored while moving upward every time the coil C is supplied. The height of the receiving plate 46 can be adjusted so that the insertion shaft 38 comes to the center position of the core body 4 of the strip coil C.

The receiving plate 46 has horizontal moving means 92,
It is composed of an elevating means 93 and the strip coil C
When it is raised to the insertion height by 3 and is inserted into the insertion shaft 38 by the horizontal moving means 92, the receiving plate 46 is lowered by the elevating means 93 together with the horizontal moving means 92, thereby supporting the strip-shaped coil C on the insertion shaft 38. As a state,
The receiving plate 46 is displaced and driven in the arrow E2 direction by the horizontal moving means 92 to return to the initial position, and the standby state is maintained. After the strip-shaped coil C is inserted into the insertion shaft 38 as the chains 23 and 24 are driven, the insertion shaft 38 is raised by one stroke corresponding to the diameter of the coil C to sequentially move the strip-shaped coil C. Store in. When the stored strip-shaped coil C is taken out, the taking-out work can be performed at the fourth position P4 or a position above the fourth position P4 while driving the chains 23 and 24 in opposite directions. If there is a sufficient working space on the left side of the winding device 1 in FIG. 1, it is possible to drive the chains 23, 24 in only one direction to increase the number of stored items. In addition, the strip coil C
If an abnormality occurs due to uneven winding of the diameter of the molding machine, an alarm sound may be generated and the molding apparatus 12 may be stopped for a certain period of time. By the winding device 1 as described above, a plurality of strip-shaped coils C can be automatically wound and stocked, so to speak, without requiring manpower, so that the number of workers can be reduced.

As another embodiment of the present invention, as shown in FIG. 9, instead of the chains 23 and 24, a housing 95 for storing the strip coil C may be provided. In this case, a pair of arms 96 for holding the strip-shaped coil C pushed up from the lower side above the strip-shaped coil can be retracted in the rising path of the strip-shaped coil as indicated by an arrow H. By providing it, the upper strip coil can be held without being dropped.

[0021]

As described above, according to the present invention, it is possible to automatically wind a plurality of strip-shaped coils and store the coils without the need for manpower.
Especially at night, it is not necessary for the worker to take out the wound coil coil for a long time,
This can reduce the labor as much as possible and can significantly improve the production efficiency. Further, since the storage means is provided above the winding means, a large occupied area is not required for installing the device.

[Brief description of drawings]

FIG. 1 is a front view showing a winding device 1 according to an embodiment of the present invention.

2 is a simplified side view seen from the left side of FIG. 1. FIG.

FIG. 3 is a simplified system diagram showing a basic configuration of a molding device 12.

FIG. 4 is a perspective view showing a specific configuration near the winding means 5.

5 is a partial cross-sectional view taken along the section line VV of FIG.

FIG. 6 is a front view showing a specific configuration of supply means 6.

FIG. 7 is a diagram for explaining the winding operation of the strip-shaped body of the winding device 1.

FIG. 8 is a view for explaining the supply operation of the core body 4 of the supply means 6.

FIG. 9 is a sectional view of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 winding device 2, 2a, 2b rocking | swiveling member 3 strip | belt-shaped body 4 core body 5 winding means 6 supply means 7 rotary counter 8 cutting | disconnection means 9 storage means 10 conveyance means 12 molding apparatus 23,24 Qian 68 link 69 raising / lowering member 70 Guide rail

Claims (1)

[Claims] 1. A tubular shape having a pair of longitudinal oscillating members that are angularly displaced between a predetermined first position and a second position, and a band-shaped body to be wound between both ends of these oscillating members. After sandwiching each of the core bodies, and rotating the core body arranged at the first position around its rotation axis to wind up the strip-shaped body,
Between the winding means for angularly displacing the swinging member to move the strip-shaped coil wound in a coil shape to the second position, and between the end portions of the pair of swinging members at the second position, A means for supplying the core body, a means for measuring the winding length of the strip-shaped body wound by the winding means, and a winding length of the strip-shaped body to a predetermined value in response to the output from the measuring means. And a plurality of strip-shaped body coils wound by the winding means, the means for cutting the strip-shaped body upstream of the first position in the supply direction of the strip-shaped body,
A band-shaped body winding device, comprising: a means for storing the band-shaped body above the winding means, and a means for transporting the band-shaped body coil at the second position to the storing means.