JPH081154U - Sheet peeling device for rolling forming rolls for adhesive materials - Google Patents

Abstract

(57) [Summary] [Purpose] A peeling device for a sheet front end of a roll for pressure-sensitive adhesive material that can peel a sheet reliably and easily with an extremely simple structure and does not require any human resources such as experts. provide. [Structure] A base plate 3 is mounted between the left and right mounting brackets 1 via a vibration-proof rubber 2. A vibration motor 4 is attached to the base plate 3 and a peeling blade 5 is attached. The tip 5a of the peeling blade 5 is sharpened in a knife shape. The peeling blade 5 is oriented obliquely from the outside with respect to the rotation direction (arrow) of the lower roll R, and when the peeling blade 5 vibrates, the amplitude end of its tip 5a contacts the surface of the roll R. Located in a degree.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a peeling device for a sheet front end portion of a roll forming roll for adhesive materials.

[0002]

[Prior art]

 A sticky material typified by rubber or vinyl is made into a sheet shape, a plate shape, or a ribbon shape (hereinafter simply referred to as a sheet) in the kneading step, and becomes a material for molding in the post-processing step. In the case of making a sheet in the kneading step, after kneading with a mixer, it is finally rolled with two rolls to be formed into a sheet.

The material kneaded by the mixer is naturally dropped in the form of an irregular lump or supplied to a roll machine by a conveyor or the like, and while being kneaded again between two rolls, a predetermined gap between the rolls is obtained. It becomes a sheet by passing through.

Since the material at this time has heat and adhesiveness, it is wound around the roll. This roll has two purposes: to knead the material homogeneously and to form it into a sheet and take it out.

Needless to say, since the work of peeling off the sheet wound around the roll is extremely dangerous, it must be performed by a skilled person. Although the work of efficiently and homogeneously kneading has been reduced from the work of heavy labor due to the development and popularization of automatic re-kneading equipment, the work of peeling the sheet after kneading has to rely on skilled workers. Also, it is not open to danger.

In particular, in the kneading step of rubber, it is a so-called batch unit in the form of lumps of about 60 to 100 kg when the original material is natural rubber and 15 to 30 kg when it is synthetic rubber. A kneading machine (hereinafter referred to as a “mixer”) usually performs batch processing in units of 50 to 250 kg, and since the kneading time in the mixer requires 2 to 15 minutes, the roll operator also rolls in accordance with this batch cycle. Be bound by a machine.

Even in such a situation, research and development of automation, labor saving, rationalization, etc. are not limited, and recently, a receiving roll from a mixer is a molding machine consisting of a screw and a roller (hereinafter referred to as an under extruder). By replacing it with), not only skilled workers are required, but also rubber kneaded in batches in the previous process goes through the under-extruder, and the subsequent process tends to be continuous.

As shown in FIG. 2, the under extruder comprises a screw S and two rolls R. The screw S is classified into a uniaxial type and a biaxial type. There are two types of shapes: taper type (also called cone type) and straight type (shown in the figure).

When the rubber is supplied into the hopper H, it is sent between the rolls R by the rotating screw S. The gap between the upper and lower rolls R has a preset gap. The rubber fed by the screw S is rolled into rolls by rolls R that rotate in mutually opposite directions and is fed into a sheet. In this case, the temperature of the screw S and the roll R is adjusted by hot water or the like.

The rubber that has been made into a bent sheet will also wind around the roll R and return if left untouched. Therefore, a skilled worker grasps the tip of the rubber and peels it off from the roll, and cools it or removes it next time. The current situation is to deliver it to the other party.

Another feature of the above-mentioned under extruder is that if the rubber kneaded in the upstream mixer is a material having the same composition, the rotation of the screw is selected in accordance with the batch cycle of the mixer, so that the batch from the mixer is selected. It is possible to continuously form an endless sheet without interruption of the rubber supplied for each.

However, no matter how much endlessness is possible, there are not so many mass-produced products, and there is a material change once every hour, let alone a different product every time when high-mix low-volume production is performed. is there.

It can be said that the kneading by the screw S and the automatic forming of the sheet by the upper and lower rolls R can be performed, and as described above, in the end, unless the skilled worker can remove the tip of the sheet from the roll, The aim of automation was to be halved, and one or two workers were only restrained in places where material changes were intense, so the development of an automatic sheet peeling device was desired.

[0014]

[Problems to be solved by the device]

 The present invention has been made in order to meet the above-mentioned conventional demands, and the purpose thereof is to enable the sheet to be peeled off reliably and easily with an extremely simple structure, and does not require any manual labor such as a skilled person. An object of the present invention is to provide a device for peeling off a sheet front end portion of a rolling forming roll for adhesive materials.

[0015]

[Means for Solving the Problems]

 The stripping device for the sheet front end portion of the pressure-sensitive adhesive material rolling forming roll of the present invention is arranged with a predetermined gap between each other, and any of the two rolls for rolling the pressure-sensitive adhesive material such as rubber between them may be used. Orient the peeling blade in a direction that is diagonally opposite to the direction of rotation of one of the rolls, and position the tip of the peeling blade near the surface of the roll so that vibration is applied to the peeling blade. It is characterized by having done.

[0016]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a mounting bracket, which is fixed to a frame F of a roll machine or the like by a bolt B or the like. A base plate 3 is attached between the left and right mounting brackets 1 via a vibration-proof rubber 2.

A vibration motor 4 as a vibrator is attached to the base plate 3 and a peeling blade 5 is attached. The peeling blade 5 is preferably made of Teflon resin.

The peeling blade 5 has a knife-shaped tip 5 a. The peeling blade 5 is oriented obliquely from the outside with respect to the rotation direction (arrow) of the lower roll R, and its tip 5a is located near the surface of the lower roll R. That is, when the peeling blade 5 vibrates, the amplitude end of the tip 5a thereof is positioned so as to come into contact with the surface of the roll R.

Since this embodiment is configured as described above, when the vibration motor 4 is operated, the base plate 3 and the peeling blade 5 integrated with the vibration motor 4 vibrate.

The vibration behavior of the peeling blade 5 follows the vibration behavior of the vibration motor 4. The vibration motor 4 is a type of vibration generating device in which vibration is generated when an eccentric weight is swung around a rotating shaft, so that its behavior is rotational vibration.

Therefore, the peeling blade 5 as a whole vibrates rotationally, and the tip 5a thereof vibrates rotationally as shown in FIG. The locus and amplitude of the rotational vibration are determined by various conditions such as the force of the vibration motor 5, the weight of the base plate 3 and the like, the damping force of the vibration-proof rubber 2, and the like. Further, the vibration frequency matches the rotation speed of the vibration motor 4.

Since the peeling blade 5 behaves as described above, the tip end portion of the rubber sheet P that is rolled by the upper and lower rolls R and adheres to the surface of the lower roll R to come out is peeled off. It is peeled off by the tip 5a of the blade 5.

The leading end of the rubber sheet P peeled by the peeling blade 5 is passed to the next step. The rubber sheet P from which the tip portion is peeled off is pulled off one after another from the lower roll R 1 by pulling, so the peeling blade 5 is no longer necessary. Therefore, the peeling blade 5 can be retracted or stopped from vibrating until it is used again.

Although the vibration motor is used as the vibrator in the above-described embodiments, the present invention is not limited to this, and any means may be used as long as it is a means for vibrating the peeling blade such as a vibrator. Further, the tip of the peeling blade may be at any position on the roll surface as long as the sheet comes out while adhering to the sheet, but the prospective angle from just below the roll to 45 ° diagonally above is about 135 °. Ranges are preferred. The inclination of the peeling blade with respect to the roll surface is preferably as close to the tangent line as possible.

Further, the anti-vibration rubber may be a spring, that is, any elastic body capable of vibratingly supporting the base plate. In addition to the above rubber (raw rubber or synthetic rubber), any adhesive material such as vinyl may be used as the adhesive material.

[0026]

[Effect of device]

 Since the tip of the peeling blade is brought close to the surface of the roll that rolls the adhesive material, and the peeling blade is vibrated, the tip of the sheet that sticks to the surface of the roll and comes out can be made sure with an extremely simple structure. And it can be easily peeled off.

[Brief description of drawings]

FIG. 1A is a side cross-sectional view, and FIG. 1B is an explanatory diagram of a main part as viewed from the arrow A.

FIG. 2 is an explanatory diagram of movement of a tip of a peeling blade.

FIG. 3 is a vertical cross-sectional view of an under extruder.

[Explanation of symbols]

 1 Mounting bracket 2 Anti-vibration rubber 3 Base plate 4 Vibration motor 5 Peeling blade 5a Tip P Rubber sheet R Roll S Screw

Claims (1)

[Scope of utility model registration request] 1. Two rolls which are arranged with a predetermined gap between each other and roll an adhesive material such as rubber between them are slanted from the outside with respect to the rotating direction of either one of the rolls. While orienting the peeling blade in a facing direction, the tip of the peeling blade is positioned near the surface of the roll, and the tip of the sheet in the pressure-sensitive adhesive material roll forming roll is characterized by vibrating the peeling blade. Peeling device.