JPH0811392B2 - Ear processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is applied to a long film manufacturing facility such as a biaxially stretched film manufacturing apparatus, a non-stretched film manufacturing apparatus, a sheet manufacturing machine, a slitter machine, and a papermaking machine. The present invention relates to an ear processing device.

(Prior Art) Taking the biaxially-stretched film manufacturing apparatus as an example of the above-mentioned film manufacturing equipment, the ear treatment will be described.

The processing of the ears 15 (see FIG. 11) in the biaxially stretched film manufacturing apparatus was performed manually. This will be specifically described with reference to FIGS. 4 to 10.

The biaxially stretched film 12 drawn from the stretching device 11 (hereinafter referred to as the film 12) is stocked at the exit of the stretching device 11 until the line is temporarily stabilized. (See FIG. 4) Next, the film 12 is passed through the trimmer 13 and the winder 14 by a paper feeding device (not shown) to wind the film around the core 14A. The operating speed at this time is 60 ~ due to workability.
Limited to 100m / min. (See FIG. 5) After the film 12 is wound around the winding core 14A, the trimmer machine 13 and the winding machine 14 are accelerated while being synchronized, and the film 12 stocked at the exit of the stretching device 11 is taken up and absorbed. Film 12
After absorbing the stock, the speeds of the trimmer machine 13 and the winder 14 become the same as those of the stretching device 11. (See FIG. 6) Next, the operator inserts a knife of the ear trim device 16 to cut both side ears 15 of the film 12 in the flow direction. (See FIG. 7) After that, the operator holds the scissors 17 and cuts the ears 15 in the width direction, and cuts the ears 15 so that the cutting ends do not wind around the rollers 18A and 18B of the trimmer machine 13. While pulling, let it bite into the reception roller unit 19. (See FIGS. 8 and 9) The reception roller is driven by a torque motor (not shown) or the like and feeds the ear portion 15 without slack. The ears 15 sent to the reception roller unit 19 are guided to a crusher (not shown) via a conveying pipe 20 by means such as idling, and are crushed into small pieces to be recovered and used as a recycled raw material.

Next, the speed is increased while synchronizing the stretching device 11 and subsequent components until the specified operating speed is reached, where the cutting device 21 operates to cut and wind the product film 22 around the core 14B,
Enter production operation. (Refer to FIG. 10) (Problems to be Solved by the Invention) As described above, since many parts of the conventional ear processing apparatus rely on human hands for operation, various problems as described below occur.

(1) Since the cutting of the ear portion 15 relies on human labor, the operation is stopped due to an operation error, that is, the winding around the roller 18A or 18B sometimes occurs, and the operation must be stopped.

(2) Cutting the ears 15 and reception roller unit
Since it is manually introduced to 19, the risk increases as the speed increases.

(3) After absorbing the stock of the film 12 after the stretching device 11 by the panel operation for accelerating the downstream side, the operator moves with the scissors and sequentially cuts the ear 15 from the operating side to the driving side. Then, the time during the introduction into the reception roller unit 19, and further the time to return to the panel and increase the operating speed to the specified speed become loss time, and this loss time cannot be ignored as the size of the device increases. . For example, with a device with a production rate of 2,400 kg / h, the loss per minute is 40 kg.

(4) In a high-speed machine (for example, "300 m / min" machine), the speed cannot be reduced below a certain limit because there is a reason for stable molding of the stretching device 11 (for example, a minimum of 12
It will be 0 m / min. ) Therefore, it has come to the limit by manpower. Therefore, in high-speed machines of 300 m / min or more, it is necessary to process the ears without manual labor.

The present invention was developed to solve the above problems, and an object thereof is to automate the ear processing operation.

(Means for Solving the Problems) Therefore, the present invention, in an ear processing apparatus applied to a film manufacturing facility for films, sheets, papers, etc., an ear trimming device for cutting the ear part of the film in the longitudinal direction, A cutting blade consisting of an upper blade and a lower blade that cuts the ears at right angles, an air nozzle that blows pressurized air from the top and blows the cut ears, the lower feed roller of the trimmer machine, and the cut ears. A reception roller unit that has a seal member mounted between suction suction boxes and a pair of nip rollers driven by a torque motor with speed limitation, and that closes the rollers when they detect passage through the ears. Which is a means for solving the problems.

(Operation) When the ears on the operating side and the driving side are cut by the cutter of the ear cutting device, the cut ears are sucked by the suction box and sucked through the reception roller unit 5 with the nip opened. When the ears pass between the reception rollers, this is detected by the sensor, and the reception roller that is rotating in advance receives the signal from the sensor and the nip closes, and the ears roll out smoothly and without slack. .

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

1 to 3 relate to an embodiment in which the present invention is applied to a biaxially stretched film manufacturing apparatus, and FIG. 1 is a side view schematically showing a stretching section to a winding section of the apparatus, FIG. 2 and FIG. FIG. 3 is a side sectional view for explaining the configuration and operation of the ear processing device.

In the illustrated embodiment, an ear cutting device 1 is provided downstream of the trimmer machine 13 as shown in FIG. The ear cutting device 1 includes a lower blade 6, an upper blade 7, and an air nozzle 3 as shown in detail in FIG.
The upper blade 7 is pivotally supported by a fulcrum 8 and is rotatably provided about the fulcrum 8 by an air cylinder 10 via a joint 9. The suction box 2 is installed under the ear cutting device 1, and the lower feed roller 18 of the trimmer machine 13 is installed.
A seal member 30 such as Bakelite is attached so that the gap between the roller 18B and B is reduced and the roller 18B is not damaged.

A reception roller unit 5 is disposed further below the suction box 2, and the unit 5 is composed of a pair of nip rollers 5A and 5B that can be opened and closed. These rollers 5A and 5B are torque motors with speed limiting (not shown), etc. Driven by. Reference numeral 4 denotes a sensor provided below the nip rollers 5A and 5B, and various sensors such as a photoelectric tube, ultrasonic wave, light, mechanical type, electromagnetic type and the like can be used.

After the normal work, the film 12 has its ears trimmed by the ear trimming device 16, and when the operator operates the air cylinder 10 of the ear cutting device 1 by operating the push button of the operation panel (not shown), the upper blade 7 Rotates around the fulcrum 8 and cuts the ears 15 with the lower blade 6 in the width direction. Simultaneously with the start of the rotation of the upper blade 7, an air jet is ejected from the air nozzle 3, which is momentarily slackened when the ears 15 are cut off and blows off the ears 15 which are about to be wrapped around the upper feed roller 18A. At the same time as preventing wrapping around, the cut ears 15 are sent toward the suction box 2.

The cut ears 15 are sucked into the suction box 2 and guided to the conveying pipe 20 below the open gap between the nip rollers 5A and 5B. Ear 15 is a nip roller
When passing through 5A, 5B, it is detected by the sensor 4, and the nip rollers 5A, 5B are closed by means such as an air cylinder (not shown). These nip rollers 5A and 5B are pre-driven, and the cut ears 15 are smoothly sent downward,
Problems such as slack of the ear portion 15 do not occur.

Since the nip rollers 5A and 5B are driven by a torque motor with a speed limiter, by synchronizing with the drive speed of the trimmer machine, the ear can be rotated without runaway even when the ear is not pulled, and the torque can be adjusted to move the ear. It is possible to stably pull out from the nip rollers 18A and 18B with appropriate tension and send it to the transfer pipe 20.

Further, the nip rollers 5A and 5B can perform stable synchronous speed-up even when the synchronous speed-up after the stretching machine is performed, so that the overall speed-up can be performed quickly. The seal member 30 is the lower feed roller 18
The gap between B and the suction box 2 is narrowed to improve the suction effect, and also serves to remove the ear portion 15 from trying to wind around the lower feed roller 18B.

The cutting and conveying operation of the ear portion 15 is performed simultaneously on the operating side and the driving side. Needless to say, the operation of inserting the knife into the ear portion of the ear trim device 16 can be automated by a conventionally known technique.

(Effects of the Invention) As described above in detail, according to the present invention, the following excellent effects are exhibited.

(1) Since the manual work of the operator can be automated,
You can free yourself from dangerous work and prevent operational mistakes.

(2) The automation reduces the lost time and improves the production efficiency.

(3) Although high-speed operation of 300 m / min or more has a limit to manual ear processing, the present invention enables high-speed operation.

(4) Since the seal member is attached between the lower feed roller and the suction box, the gap between them is reduced,
It is possible to prevent the lower feed roller from being damaged. Since the pair of nip rollers are driven by the torque motor with speed limitation, by synchronizing with the drive speed of the trimmer machine, the ears can be rotated without runaway even when the ears are not pulled, and the ears can be adjusted appropriately by adjusting the torque. It is possible to stably pull out from the nip roller with tension and send it to the transport pipe.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an outline of an embodiment in which the present invention is applied to a biaxially stretched film manufacturing machine, FIG. 2 is an enlarged side view of the cutting device, and FIG. 3 is an explanatory diagram showing an operation of the device. , FIG. 4 to FIG. 10 show an ear processing procedure by a conventional device, FIG. 4 is a side view showing a film stock state before cutting, FIG. 5 is a side view showing a state of film passing, and FIG. FIG. 7 is a perspective view showing a state at the start of trimming, FIG. 8 is a perspective view showing a state in which the ears are manually cut, and FIG.
The figure is a perspective view showing the state of manual ear discharge work,
The figure is a side view showing the state immediately before the start of film production, and FIG. 11 is a sectional view of the film before ear cutting. Description of main parts of the figure 1 …… Ear cutting device 2 …… Suction box 3 …… Air nozzle 5 …… Reception roller unit 5A, 5B …… Unit roller 6 …… Lower blade 7 …… Upper blade 15 …… Ear 16 ...... Ear trimming device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography SHO 62-32797 (JP, U) ACT 48-72587 (JP, U) ACT 60-45694 (JP, U)

Claims (1)

[Claims] 1. An ear treating apparatus applied to a film manufacturing facility for films, sheets, papers, etc., an ear trimming device for cutting the ear part of the film in a longitudinal direction, and an ear part formed of an upper blade and a lower blade at a right angle. A cutting blade that cuts in the direction, an air nozzle that blows pressurized air from the top to blow the cut ears, a seal installed between the lower feed roller of the trimmer machine and the suction box that sucks the cut ears. An ear processing device comprising a member and a pair of nip rollers driven by a torque motor with speed limitation, and a reception roller unit that closes the rollers when the passage of an ear portion is detected by a sensor.