JPH02169450A - Iron core stopper device of film winder - Google Patents

Abstract

PURPOSE:To absorb the strong impact of a taken-up article and stop said article surely at a prescribed position by installing a cylindrical iron core stopper which can be turned on one front side of a cradle and installing a plate-shaped stopper which can be advanced and retreated on the side. CONSTITUTION:A cylindrical stopper 5 for the iron core 3 of a taken-up film article 2 is erected in rotatable ways closely to one front side of a taken-up article receiving cradle 4, and the strong impact of the taken-up article 2 having a large weight is absorbed, and said article is stopped. Further, on the side of the cradle 4, a plate-shaped stopper 9 which can be advanced and retreated from the cradle 4 and acts so as to auxiliarily push the rear part of the cradle 4 when the iron core 3 is pulled out and so as to stop the edge part of the iron core 3 at a prescribed position when the iron core 3 is inserted is installed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a paper tube in which a long raw material in the form of a sheet of plastic film or paper (hereinafter simply referred to as a film) is continuously fed onto the surface of a rotating drum. In film winding (automatic winding device), when the winding of one paper tube reaches a predetermined amount and the product is taken out, the iron core that has been pushed into the paper tube is pulled out. This relates to a device that stops the iron core on a cradle and stops the end of the iron core at a predetermined position when pushing the iron core into a new paper tube.

[Conventional technology]

Conventionally known film winders continuously feed film onto a rotating drum and wind it onto paper tubes for a predetermined amount.
As shown in FIG. 2, an L-shaped plate-shaped stopper was used as a stopper for stopping the rolled product on the idler, and this was the stopper used after the product was stopped.

[Problem that the invention attempts to solve]

In a stopper formed with an L-shaped structure like this, the impact of a particularly heavy rolled product is absorbed by the bent plate 8 on one side of the L cedar board.
Since the stopper is exposed to the surface, it has the disadvantage that the stopper is severely damaged and operations are likely to be disrupted.

Additionally, when pulling out the iron core, workers had to help by pushing the iron core, which was not only dangerous (but also affected productivity).

The purpose of the present invention is to solve these problems, to stop the rolled product in a robust and reliable manner, and to automatically provide push-out assistance when pulling out and regulation when pushing in, thereby ensuring safe and smooth operation. It is possible to provide a stopper device.

[Means to solve the problem]

In the present invention, a strong cylindrical stopper that absorbs the strong impact of the rolled product and stops it is rotatably installed, and the end of the iron core is provided with auxiliary push when pulling out the iron core and when pushing the iron core. The above object is achieved by providing a stopper that stops the part at a predetermined position.

That is, in the iron core stopper device of a film winder, which continuously transfers a long film onto a rotating drum (1) and winds a predetermined amount onto a paper tube into which an iron core is pushed on the drum surface, the winding The upstream product holder has a cylindrical stopper (5) rotatably installed on one side of the front side of the cradle (4) for the iron core (3) of the upstream product (2), and a cylindrical stopper (5) is rotatably installed on the side of the cradle (4). This is an iron core stopper device for a film winder, characterized in that it is provided with a plate-shaped stopper (9) for pressing and regulating the pushing of the iron core, which can move forward and backward toward the cradle.

The iron core stopper (5) is provided with a shock absorber (5a) made of synthetic resin or the like on its outer periphery, and the iron core stopper (5) is made of air with which the internal pressure can be adjusted so that it rotates around the fixing bolt (6). It is connected to the cylinder (8). When the rolled product (2) is discharged from the rotating drum (1) to the cradle (4), the air cylinder (8) lowers its pressure to the iron core (3) that collides with the cylindrical stopper (5). After that, the iron core (3) is immediately returned to its pulled-out position under high pressure. Further, it is preferable to attach a centering adjustment bolt 01) to the tip of the arm of the air cylinder (8) in order to determine the position at which the iron core is pulled out on the cradle (4) depending on the size of the iron core used.

Air cylinder 00 that drives the plate-shaped stopper (9)
) is a two-stage air cylinder. That is,
When pulling out the iron core (3) from the rolled up product (2) discharged into the cradle (4), the tip of the iron core (3) is activated at the same time as the iron core pulling device provided at the other end of the cradle (4) is driven. After the iron core (3) is pulled out, it is configured to absorb the impact when the iron core is inserted into the paper tube and to adjust the insertion position of the iron core (3).

In addition, a selection switch can be provided on the air cylinder so that it can be operated manually or automatically.

[Embodiments] Basic embodiments are shown in the drawings below, and the structure and operation thereof will be explained together.

FIG. 1 is a perspective view schematically showing the apparatus of the present invention and a part of the winder apparatus in the vicinity thereof.

1 is a rotating drum of a winder device, and the film 2' transferred to the surface thereof is wound around a paper tube 3a into which an iron core 3 is pushed, and when it reaches a predetermined amount, it is cut to become a rolled product 2 and placed on a cradle 4. is released. Here, the iron core 3 is pulled out from the rolled product 2 and released from the cradle 4 as a product. Also, at this position on the cradle 4, the pulled out iron core 3 is pushed into a new paper tube for replacement.

Reference numeral 5 designates a stopper of the present invention, the outer peripheral surface of which is provided with a buffer body 5a made of synthetic resin or the like, and is firmly erected on a base 5b. A bolt 6 rotatably fixes the base 5b. 7 is an arm connected to an air cylinder 8 that rotates the base 5b. 9 is a plate-shaped stopper that presses the end of the iron core 3 auxiliary when the iron core 3 is removed, and also controls and stops the end position when pushing the iron core into the paper tube 3a; 9a is a guide; It is. IO is a two-stage air cylinder for moving the stopper 9 forward and backward, and is designed to regulate the pushed-in iron core and push it back when it is pulled out using the necessary pressure. 11 is a centering adjustment bolt for positioning the iron core stopper 5.

Since the present invention is configured in this way, the film 2'
When a predetermined amount of the film 2' has been wound onto the paper tube, the film 2' is cut and the rolled product 2 is sent onto the cradle 4, but at this time it is stopped by a stopper 5 and stopped at a predetermined position. Next, when the iron core pulling device located on the opposite side of the cradle 4 begins to pull out the iron core from the rolled product 2, the air cylinder 10 is activated, and the plate-shaped stopper 9 pushes the iron core and pulls it out. Make it happen smoothly. The product from which the iron core 3 has been pulled out is discharged out of the apparatus by the actuation of the cradle 4.

When the cradle 4 returns to its original position, the previously pulled out iron core 3 is pushed into the paper tube supplied to it, and the tip of the iron core hits the plate-shaped stopper 9 and stops. The paper tube into which the iron core has been pushed is sent to an upper magazine rail by a killer (not shown) in the same way as in a known film winder device, and is used for the next winding.

〔Effect of the invention〕

Since the stopper device of the present invention is thus composed of a rolled-up product stopper and a separate plate-shaped stopper,
For heavy rolled products transferred onto the cradle, the impact can be well absorbed and the product can be reliably stopped at a fixed position, thereby preventing problems caused by damage as in the past. Further, the plate-shaped stopper allows both the action of pulling out the iron core and regulating the pushing in to be performed automatically and reliably, and the film winder device can be operated safely, which is extremely beneficial.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the iron core stopper device of the present invention, and FIG. 2 is a perspective view of a conventional stopper device. 1... Rotating drum, 2... Film rolled product, 3...
...Iron core, 4...Cradle, 5...Iron core stopper, 8...Air cylinder for driving the same 9...Plate stopper for pressing the iron core and regulating insertion 10...Air for driving the same Cylinder patent applicant Mitsubishi Kasei Vinyl Co., Ltd. Representative Patent attorney Yoshio Kimura and 1 other person Figure 1 Figure 2

Claims (1)

[Claims] An iron core stopper device for a film winder that continuously transfers a long film onto a rotating drum (1) and winds a predetermined amount onto a paper tube into which an iron core (3) is pushed on the drum surface. A cylindrical stopper (5) for the iron core (3) of the rolled product (2) is rotatably installed on one side of the front side of the rolled product receiving cradle (4), and a cylindrical stopper (5) is rotatably provided on the side of the cradle (4). An iron core stopper device for a film winder, characterized in that a plate-shaped stopper (9) for pressing and regulating the pushing of the iron core is provided on one side of the iron core, which can move forward and backward toward the cradle.