JPH11236150A - Film roll handling apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film roll handling apparatus which efficiently cuts a defective film roll, shortens it treatment time, is easy to handle, and improves the workability. SOLUTION: A film roll is placed on a roll frame of a slide table slidably provided on a main frame 1 in an upright condition to cut a film, and the main frame 1 is provided with a sensor B to detect the diameter of a film roll A, a fixed part which is provided with the roll frame 2 connected to a cylinder 3, and comprises a cone 4 to fix and hold the film roll A on the roll frame 2, a cutter feed part C in which a cutting unit 10 having a cutter 11 to cut the film of the film roll A on a bobbin is provided movably in the longitudinal direction of the film roll A, the cutter 11 is provided in the axial direction of the film roll A through a cutter holder in an elevating/lowering manner, and the cutting unit 10 and the cutter 11 are moved, and an operation control part D capable of regulating the cutter feed part by selecting the cutting number of the cutter 11 according to the roll diameter of the film roll A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin sheet or film for packaging films such as a wrap film,
Processing of film rolls in which other long products are wound on a bobbin or a core, for example, a defective film generated during a wrap film manufacturing process or a defective product winding roll on which a packaging film having a quality problem is wound. For efficiently separating the film from the bobbin.

[0002]

2. Description of the Related Art In general, long films which are continuously processed in a production line for wrapping films such as wraps, and other synthetic resin films or sheets, are unadjusted in the manufacturing process or have poor quality due to poor finishing. Defective products that cannot be shipped on the product due to reduction may occur. Long films such as those that must be disposed of as defective or cannot be used depending on the application are discarded. It is known that the films and the bobbins are separated and recovered and reused for reusing the films and the bobbin of the core in terms of properties.

[0003]

However, in a conventional film roll of defective packaging film wound on a winding bobbin, an operator cuts the film with a cutter in order to separate the film from the bobbin. Alternatively, the films and the winding bobbin are separated and collected and disposed of by manual cutting or cutting. For example, for a wrap film
The film of μ is 3,000 m wound, the film thickness is about 60 mm, and the film itself is relatively hard, so it must be cut many times little by little to cut this film with a cutter, It takes a lot of labor and time to cut one film roll, and usually several pieces of defective products that must be cut like this occur at the same time, so it is difficult to process all of them. There is a problem that it is not suitable for large-scale processing, and it is troublesome to process without damaging the bobbin, in particular, the pain of the operator is large, and the processing of the leftovers becomes expensive,
Furthermore, if the film roll tearing process is implemented by a conveyor system, it is too large, and there are many inconveniences that cannot be adopted where the installation area is limited.

SUMMARY OF THE INVENTION The present invention is intended to eliminate these conventional disadvantages accurately and efficiently cuts a defective film roll, has a very short processing time, is safe, and has a simple and easy handling operation. It is an object of the present invention to provide a compact film roll processing apparatus that can greatly improve the performance and is not restricted by the installation place.

[0005]

According to the present invention, a roll frame on which a film roll in which a film is wound on a bobbin is mounted is slidably mounted on a main frame, and the film roll on the roll frame is fixedly held. A fixing unit having a cutter that cuts the film of the film roll on a bobbin, and a cutting unit that is provided to be able to move up and down along the axial direction of the film roll via a cutter holder; A cutter feed unit that is provided so as to be capable of moving toward and away from the film roll to move the cutter toward and away from the film roll, and selecting the number of times of cutting of the cutter in accordance with the roll diameter of the film roll, and setting the cutter feed unit to An adjustable operation control unit is provided on the base frame.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a film roll processing apparatus according to the present invention, a defective film roll A in which a packaging film is wound around a bobbin, particularly a film roll to be discarded, is mounted on a roll stand at a position where the main frame is advanced. With the film roll standing upright, the roll base is retracted, approaching the cutting unit with the cutter, inserting the cone from just above the film roll, holding it in place, and then measuring the roll diameter of the film roll with a sensor. The number of times the cutter cuts the film is detected, and the operation of the cutter feeding section is repeated to perform a film tearing operation. That is, the cutter attached to the cutting unit is set at a position where it bites into a part of the outer periphery of the film, and the cutting unit moves in the up-down direction and the front-back direction. Then, the cutter is set at a position further intruded from the outer periphery of the film, and the cutting operation is repeated, and the cutting operation is sequentially divided into several times until the bobbin is reached from the outer periphery. After the separation, the cone is pulled out from the bobbin of the film roll, the roll base is sent forward, the film roll is taken out of the main frame, replaced with the next defective film roll, and the next cutting process is started. By the operation of the cutting unit corresponding to the roll diameter of the roll, the cycle of each processing operation is automatically repeated in sequence, the packaging film can be efficiently separated and removed from the bobbin, the processing time is extremely short and the handling operation is extremely short. The simplicity can greatly improve the workability.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 5. One of the film rolls A in which a packaging film is wound on a bobbin in FIGS. Is mounted on the roll stand 2 of the slide table provided in the above-mentioned manner, and the film is cut off. The main frame 1 is provided with a sensor B capable of detecting the diameter dimension of the film roll A and the roll base 2 connected to a cylinder 3, and a cone 4 for fixing and holding the film roll A on the roll base 2. A fixing unit and a cutting unit 10 having a cutter 11 for cutting the film of the film roll A on the bobbin are provided so as to be movable in the front-rear direction with respect to the film roll A, and the cutter 11 is moved in the axial direction of the film roll A. The cutter unit is provided so as to be able to move up and down through a cutter holder, and the cutter feed unit C for moving the cutter unit 11 and the cutter unit. An operation control unit D capable of adjusting a feeding unit is provided as a film roll processing device provided on the main frame 1.

As shown in FIG. 4, the roll base 2 is a table having a cut 20 into which the cutter 11 can be inserted, and has a support portion 21 fitted into a bobbin of the film roll A. It is slidably provided on a guide rail 22 provided on a frame, is connected to a cylinder 3 via a table bracket 23, and is moved in the front-rear direction of the main frame 1 so that the cutter 11 The cut amount can be set evenly.

The fixing portion of the film roll A is provided with a cone 4 inserted into a bobbin of the film roll A connected to a cylinder 5 so as to be able to move up and down. The cone 4 can be inserted into or removed from the bobbin from above the film roll A, thereby facilitating the engagement and disengagement of the film roll A.

The cutting unit 10 is a slide frame slidably provided on a guide rail 15 on a base plate.
6, a cutter holder 13 provided to be able to move up and down freely,
A cutter 11 detachably attached to the cutter holder 13 via a cutter retainer 12; a cylinder 14 for driving up and down is connected to the cutter holder 13;
7, a combination of forward, backward, and elevating operations of the cutter 11 to form a parallelogram. A one-cycle cutting process is performed in the descending, retreating, ascending, and forwardly operating process of the cutter. . (Fig. 1)

The cutter feeding section C is provided with a cylinder 14 for moving the cutter holder 13 of the cutting unit 10 up and down, and a base plate so that the cutting unit 10 can be moved toward and away from the film roll A. The ball screw 9 is supported by a bearing, and the cutting unit 10 is connected to the ball screw 9 via a nut 19 so as to be able to move forward and backward, and the motor 6 rotates forward and reverse through a power transmission mechanism such as a sprocket 7 and a chain 8. ing. (Fig. 5)

Further, the operation controller D of the cutter 11
When the film roll A is set, the film is automatically cut by the cutter 11, so that a sensor B capable of detecting the diameter of the film roll A and a cutter B based on a detection signal of the sensor B are provided. An operation control unit D including a sequencer including an encoder for selecting the number of repetitions of the cutting operation of each of the cylinders 3, 5, 1
4 and a sensor for controlling the start and stop of the motor 6.

Although a dustproof cover is provided on both sides or the back of the main frame 1 except for the front as required, a transparent opening / closing door may be used, and a cutter cover may be provided around the cutter 11. In addition, it is possible to prevent chips from scattering. Further, a caster 30 or an adjustment fixed leg 31 is attached to the main frame 1 to facilitate movement and installation.

In the figure, 32 is a compressed air device, 33 is a joint, 34 is a handle plate, and 35 is a hinge provided on an opening / closing door. The cylinders 3, 5, and 14 are reciprocated with a predetermined stroke, and the drive and stop control is automatically performed by a sensor, for example, a sensor such as an optical system detector or a limit switch. As described above, it is also possible to select control by a sequencer, control by the presence or absence of a film roll, passage or stop of the film roll, or interlocking of pre-processing and post-processing. In this case, it can be operated by a microcomputer unit that controls by inputting preset data, and it is possible to perform manual or automatic switching, emergency stop, abnormality alarm, and related control according to the order of the work process that is sequentially shifted. You can also choose. In addition, in consideration of safety, an alarm is issued if any of a cycle operation abnormality or a disconnection abnormality occurs during automatic operation, all operations are stopped when an alarm is issued, and operation cannot be performed 0N unless canceled by resetting You may do so.

In the illustrated embodiment, when a film roll A is placed on a roll base 2 of a slide table provided on a main frame 1 by an operator in a state where the film roll A is upright, a sensor (not shown) detects the film roll A. The cylinder 3 is actuated to slide the roll base 2 at the advanced position, retreat to a predetermined position, and stop. Further, the cone 4 immediately above the film roll A is lowered by the cylinder 5, and the bobbin of the film roll A is moved down. And the film roll A is fixedly held on a table and set. Next, a signal detected by the sensor B is set in accordance with the roll diameter of the film roll, the motor 6 is started, and the ball screw 9 is rotated via the sprocket 7 and the chain 8 of the power transmission mechanism to perform cutting. Move the unit 10 forward and the cutter 11
Is stopped at a predetermined position by approaching the film roll A, the cutter 11 attached by the cutter holder 12 is moved downward by the cylinder 14 via the cutter holder 13, and the cutter 11 is moved upward in the bobbin axis direction of the film roll A. When the lowering operation is stopped at the lowermost position after the tearing is completed, the cutting unit 10 is retracted by the reverse rotation of the ball screw 9. Shimmer cutter 1
1 is separated from the film roll A and stopped when returning to a predetermined position, and then the cutter holder 13 is raised by the cylinder 14 to return to the old position, the cutter 11 is prepared for the next cutting operation, and the cutting process is repeated as many times as necessary. . At the end of this cutting step, the cutter 11
Is returned to the uppermost position, the cone 4 is raised by the cylinder 5 and pulled out of the bobbin of the film roll A to be in a free state. Then, the roll base 2 is moved forward by the cylinder 3 to cut the film. When the film roll A is pushed out to the front of the main frame 1 and stopped at a predetermined position, the operator can easily take out the film from the bobbin and replace it with the next defective film roll to efficiently perform the cutting process. be able to.

[0016]

According to the present invention, there is provided a fixing portion for slidably providing a roll base on a main frame on which a film roll on which a film is wound on a bobbin is mounted, and for holding the film roll on the roll base, A cutting unit that has a cutter that cuts the film of the film roll on a bobbin and that is provided so as to be able to move up and down along the axial direction of the film roll via a cutter holder; and A cutter feed unit which is provided so as to be capable of moving toward and away from the film roll, and which can adjust the cutter feed unit by selecting the number of times of cutting of the cutter in accordance with the roll diameter of the film roll. By disposing the control unit on the base frame, when disposing of defective film rolls in which films are wound on bobbins The film on the film roll is automatically torn, and the film is efficiently separated and removed from the bobbin to enable the regeneration and recovery of the film.The bobbin can also be reused, the processing time is extremely short, and the handling operation is automatically simplified. In addition to greatly improving the workability, the manual labor of the operator for tearing can be eliminated, which can contribute to labor saving, and a compact device having a small installation area can be obtained, so that the collection process can be performed efficiently at low cost.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a front view of the example of FIG.

FIG. 3 is a rear view of the example of FIG. 1;

FIG. 4 is an enlarged detail view of a part of the example of FIG. 1, wherein FIG.
FIG. 2B is a plan view taken along line a, and FIG.

FIG. 5 is an enlarged detail view of a part of the example of FIG.
FIG. 2B is a plan view taken along line b, FIG. 2B is a front view thereof, and FIG. 1C is a side view thereof.

[Explanation of symbols]

 A ... Film roll B ... Sensor C ... Cutter feeder D ... Operation controller 1 ... Main frame 2 ... Roll base 3 ... Cylinder 4 ... Cone 5 ... Cylinder 6 ... Motor 7 ... Wheel 8 ... Chain 9 ... Ball screw 10 ... Cutting Unit 11 ... Cutter 12 ... Cutter presser 13 ... Cutter holder 14 ... Cylinder 15 ... Guide rail 16 ... Guide rail 17 ... Absorber 19 ... Nut 20 ... Cut 21 ... Support part 22 ... Guide rail

Claims (4)

[Claims] A main frame provided with a roll base on which a film roll in which a film is wound on a bobbin is slidably provided, and a fixing portion for fixing and holding the film roll on the roll base; A cutting unit that has a cutter that cuts the film on the bobbin and that is provided so as to be able to move up and down along the axial direction of the film roll via a cutter holder, and that the cutting unit is connected to the film roll. A cutter feed unit that is provided so as to be able to move away from and separates the cutter from the film roll, and an operation control unit that can adjust the cutter feed unit by selecting the number of cutter cuts corresponding to the roll diameter of the film roll. A film roll processing device, which is disposed on a base frame. 2. The cylinder according to claim 1, wherein the roll base has a support portion fitted into a bobbin of the film roll, and is slidably provided on a guide rail provided on the base frame. The processing apparatus for a film roll according to claim 1, wherein the processing apparatus is connected to a film roll. 3. The film roll fixing part is provided with a cone inserted into a bobbin of the film roll connected to a cylinder so as to be able to move up and down, and is provided opposite to the roll base. Item 3. A film roll processing apparatus according to item 1 or 2. 4. A cutting unit comprising: a cutter holder provided on a slide frame slidably provided on a guide rail so as to be able to move up and down along a guide pole; and a cutter attached to the cutter holder via a cutter holder. Equipped with a cylinder connected to the cutter holder,
4. The film roll processing apparatus according to claim 1, wherein a shock absorber is provided at a vertical dead center of the cutter holder.