JPH06179550A - Automatic switching device of shuttle type winder - Google Patents

Abstract

PURPOSE:To provide an automatic switching device of a shuttle type winder where no bending of the rear end of a preceding sheet product in switching the winding of the sheet product, no wastes of products by being crumpled are experienced, and automation is easy. CONSTITUTION:A supporting conveyor 33 is provided close to the lower part of a cutter 31, and the rear end of a preceding sheet product W hanging from the cutter 31 is received by the supporting conveyor 33 and fed forward, preventing the product from being crumpled. On the other hand, the fore end of the following sheet product W is guided to the specified winding starting position by means of the supporting conveyor 33 and a guide conveyor in the downstream enabling the winding. This constitution causes no wastes in the sheet product, dispenses with the presence of an operator, and facilitates the automatic switching.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shuttle type winder automatic switching device for winding a sheet product alternately by two shuttle type winders in a calendar line for producing sheet products such as rubber. The rear end of the preceding sheet product can be smoothly wound around the winder.

[0002]

2. Description of the Related Art In a calendar line for making a rubber sheet of a tire material, which is one of sheet products, a calendar is used to sandwich a base fabric or a steel belt between the rubber to continuously produce the sheet product. Molding and cleaning equipment,
Sheet products sent through an accumulator are cut with a cutter and the liner is sandwiched between two winders that are alternately wound up.

To wind such a sheet product, a dual winder is used, and the winder is fixed before and after the sheet product hanging down through a pinch roll, and when one winder becomes full, it is cut. Rewinding to the other winder has been performed, but the front and back of the sheet product wound on the two winders are reversed, and the processing in the subsequent process becomes complicated.

Therefore, a shuttle type winder may be used, and as shown in FIGS. 3 and 4, an example of the winder is two shuttles that move forward in the feeding direction L of the sheet product W in a direction perpendicular to the line. 1 and 2 are provided, winders 3 and 4 are mounted on the shuttles 1 and 2, respectively, and one shuttle 1 is positioned in the forward direction of the feeding direction L, and the sheet product W is wound and cut when it is full. The shuttle 2 is retracted from the front in the feeding direction L, the other shuttle 2 is moved to the front in the feeding direction L, and the winding by the winder 4 is repeated.

In such a shuttle type winder, since the sheet product W is automatically switched, as shown in FIG.
Roll guides 6 spaced below the pinch rolls 5,
The cutter 7, the pinch roll 8 and the guide roll 10 attached to the swing arm 9 are provided respectively, and the sheet product W hanging through the upper pinch roll 5 is passed through the roll guides 6 at intervals to the cutter 7. After feeding and pinching the upper and lower sides of the sheet product W with pinch rolls 5 and 8, respectively, the sheet product W is cut with a cutter 7, and the lower pinch roll 8 is opened to move the preceding sheet product W onto one of the shuttles 1, (2). The winder 3 and (4) are wound and retracted from the front in the feeding direction L.

Next, the other shuttle 2, (1) is moved to be positioned forward in the feeding direction L, and then the upper pinch roll 5 pulls in the succeeding sheet product W, and the tip of the swing arm 9 moves. The guide roll 10 guides the leading end of the sheet product W to the winding start position of the winder 4, (3) so that the liner 11 is sandwiched and wound up.

[0007]

In such a shuttle type winder switching device, the sheet product W is sandwiched between the upper and lower pinch rolls 5 and 8 and cut by the cutter 7, and then the preceding sheet product W is wound up. When the winder 3 is driven again and the lower pinch roll 8 is opened, the sheet product W
As shown by the broken line in FIG. 3, the trailing edge of the trailing edge falls due to its own weight and hangs down toward the portion of the guide roller 10 to be bent, and in particular, in the case of a thin sheet product W, it becomes crumpled. When the bent or crumpled sheet product W is wound as it is, it may damage the already wound sheet product W. Conventionally, the bent part or the crumpled part is worked. The person must cut it by hand, which results in waste of the product and obstacles to automation.

The present invention has been made in view of the above problems of the prior art. When the sheet product is rewound, the trailing end of the preceding sheet product is bent or crumpled to cause waste of the product. The present invention aims to provide an automatic switching device for shuttle type winders that does not have any problems and is easy to automate.

[0009]

In order to solve the above problems, an automatic switching device for a shuttle type winder according to the first invention is mounted on a shuttle provided so as to be movable in a direction orthogonal to a sheet product feeding direction. In the automatic switching device of the shuttle type winder, which moves the two winders alternately forward in the feeding direction and cuts the sheet products hanging down through the pinch rolls and alternately winds them, an automatic cutter for cutting the sheet products is used. Installed below the pinch roll, installed a support conveyer that supports the rear end of the cut sheet product in close proximity to the downstream of this automatic cutter and sends it to the shuttle winder direction, and the sheet downstream of this support conveyor. A guide conveyor for guiding the tip of the product to the winding start position of the winder is installed so as to be retractable.

The shuttle type winder automatic switching device of the second invention is characterized in that an automatic cutter for cutting sheet products is installed on the feed conveyor in place of the configuration of the first invention. is there.

[0011]

According to this automatic switching device of the shuttle type winder, the support conveyor is provided close to the lower part of the cutter, and the rear end of the preceding sheet product hanging from the cutter is received by the support conveyor and sent out. In addition, the leading edge of the succeeding sheet product is guided to a predetermined winding start position by the support conveyor and the guide conveyor downstream thereof so that the sheet material can be wound up.

Further, according to the automatic switching device of the shuttle type winder, the cutter is installed on the support conveyor, and the length of the trailing end of the preceding sheet product hanging from the cutter is made extremely small. I try not to bend it further or make me crumpled.

[0013]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic configuration diagram of an embodiment of an automatic rewinding device for a shuttle type winder according to the present invention. In this shuttle type winder automatic rewinding device 20, two shuttles 21 and (22) are provided in front of the feed direction L of the sheet product W so as to be movable in the feed perpendicular direction. The winders 23 and (24) having the same configuration are mounted on the (22), but the winder 23 of the one shuttle 21 will be described below.

As a winder 23 on the shuttle 21, a take-up reel 25 for taking up the sheet product W is provided, and an unwinding device 27 for unwinding the liner 26 is provided at the front in the feeding direction thereof and is provided with three guide rolls 28. It is adapted to be sent out to the take-up reel 25.

In order to wind the sheet product W around the winder 23 and automatically switch the winder,
A pinch roll 29 is provided downstream of a calendar line cleaning device, an accumulator, etc., and a roll guide 30 is provided below the pinch roll 29 with a space therebetween.
The cutter 31 and the pinch roll 32 are provided in order,
Although the same as before, the distance between the cutter 31 and the lower pinch roll 32 is made as small as possible.

A support conveyor 33 is provided substantially horizontally so as to be located below the lower pinch roll 32 so as to be arranged downstream of the cutter 31, and the conveyor belt is driven in the feeding direction. ing. The length of the portion of the support conveyor 33 rearward of the lower pinch roll 32 corresponds to the distance from the cutter 31 to the support conveyor 33, and the preceding sheet product W cut by the cutter 31 is When the rear end falls by its own weight, it can be supported by the conveyor belt of the support conveyor 33.

A guide roll 34 is provided in front of the support conveyor 33 so that the tension of the sheet material W to be wound by applying tension is not applied to the support conveyor 33. In a normal winding state, This guide roll 34
The sheet product W is sent from the winding reel 25 of the winder 23 to be wound up.

Below the guide roll 34, a guide conveyor 35 is arranged to guide the leading end of the sheet material W at the start of winding, and the guide conveyor 35 is arranged so as not to come into contact with the sheet material W in a normal winding state. It can be rocked by the drive cylinder 36.

Next, the operation of the automatic switching device 20 of the shuttle type winder thus constructed will be described.

When it is detected that a predetermined amount of the sheet material W is wound on the winding reel 25 of the winder 23 on the one shuttle 21, the upper pinch roll 29 is stopped and the winding reel 25 is driven. , The lower pinch roll 32 is closed to clamp the sheet product W by the upper and lower pinch rolls 29 and 32, and then the sheet product W is cut by the cutter 31.

After that, when the support conveyor 33 is driven, the lower pinch roll 32 is opened, and the take-up reel 25 of the winder 23 is driven again, the trailing end of the cut sheet product W is not left. Being rolled up.

At this time, at the moment when the lower pinch roll 32 is opened, the trailing edge of the cut sheet product W falls by its own weight, but the support conveyor 33 is installed close to the lower side of the pinch roll 32. And is driven in the feeding direction, the rear end of the sheet product W is fed and the supporting conveyor 3
You get on top of 3 and are wound up without bending or crumpling.

After completely winding the preceding sheet product W in this way, the take-up reel 25 and the support conveyor 33 are stopped to retract the shuttle 21 from the front in the feeding direction L of the sheet product W and the other shuttle 22. Feed direction L
Position in front of. At this time, the liner 26 is wound around the take-up reel 25 via the three guide rolls 28 in advance.

Further, the guide conveyor 35 is driven by the driving cylinder 3
The rod of No. 6 is extended to the winding start position protruding forward from the retracted state.

After that, the support conveyor 33 and the guide conveyor 35 are driven and the upper pinch roll 2 is driven.
9 is driven to draw the leading edge of the succeeding sheet product W, and is positioned at the take-up reel 25 via the support conveyor 33, the guide roller 34, and the guide conveyor 35. The entanglement is started with 26.

After the leading end of the sheet product W is wound on the winding reel 25, the rod of the drive cylinder 36 is contracted to bring the guide conveyor 35 to the retracted position in the normal winding state.

In this way, the switching of the shuttle type winder is completed, but in order to automate these operations, the winding reel 25 is provided with a winding amount detector and a winding completion detector,
The operations of the pinch rolls 29 and 32, the operation of the cutter 31, and the like are controlled according to these detection signals, and the shuttles 21 and 22, the support conveyor 33, and the guide conveyor 3 are controlled.
5 is provided, and the shuttle type winder 20 automatically switches the sheet product W.

By using the shuttle winder automatic rewinding device 20 as described above, it is possible to prevent the trailing end of the preceding sheet product W from being bent or crumpled and to completely wind it up.

Therefore, the sheet product is not wasted, no operator is required to intervene, and automatic switching can be easily performed.

Next, one embodiment of the automatic switching device for the shuttle type winder of the second invention will be described with reference to FIG.

In the automatic switching device 40 of the shuttle type winder, the arrangement of the cutter 41 is different from that of the first invention, and the rear end of the preceding sheet product W that has been cut more reliably can be supported by the support conveyor 33. I have to.

In this shuttle type winder automatic switching device 40, the cutter 41 is placed above and below the pinch rolls 29 and 32.
The arrangement is changed on the support conveyor 33 from between.

The cutter 41 is provided with a guide plate 42 having a semicircular cross section, which is slightly separated from the conveyor belt of the support conveyor 33.
The sheet product W is wound up after passing over 2, and the rotary blade 43 is provided above the guide plate 42. In order to prevent the sheet material W from adhering to the surface of the guide plate 42, it is preferable to coat an anti-adhesive resin such as non-adhesive rubber or polyfluorinated ethylene-based fiber.

Since the other structure is the same as that of the first invention, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Also in the automatic switching device 40 of the shuttle type winder, the automatic switching of the sheet product W is performed in the same process as in the case of the first invention, but the cutter 41 is installed on the support conveyor 33. The trailing edge of the preceding sheet product W is supported by the support conveyor 33 as it is without hanging after cutting, so that it is possible to more reliably prevent bending and crumpling.

The present invention is not limited to the above-described embodiments, and each constituent element may be modified within the scope of the invention.

[0037]

As described above in detail with reference to the embodiment, according to the shuttle type winder automatic switching device of the present invention, the preceding conveyor sheet is provided so as to approach the lower part of the cutter and hang down from the cutter. Since the rear end of the sheet product is received and sent out by the support conveyor, the rear end of the sheet product can be wound up without bending or crumpling, and the leading end of the succeeding sheet product can also be supported on the downstream side of the support conveyor. The guide conveyer can guide the reel to a predetermined winding start position and automatically wind it.

Further, according to the automatic switching device of the shuttle type winder, since the cutter is installed on the supporting conveyor, the length of the trailing end of the preceding sheet product hanging from the cutter is made extremely small. You can make sure that it doesn't bend or crumple.

According to these inventions, the sheet product is not wasted, no operator is required to intervene, and automatic switching can be easily performed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram according to an embodiment of a shuttle type winder automatic rewinding device of the present invention.

FIG. 2 is a schematic configuration diagram according to another embodiment of the shuttle winder automatic rewinding device of the present invention.

FIG. 3 is a schematic configuration diagram of a conventional shuttle-type winder automatic rewinding device.

FIG. 4 is a schematic plan view of a conventional shuttle-type winder automatic rewinding device.

[Explanation of symbols]

 20 Automatic Shuttle Winder Switching Device 21, 22 Shuttle 23, 24 Winder 25 Take-up Reel 26 Liner 27 Liner Unwinder 28 Guide Roll 29 Pinch Roll 30 Roll Guide 31 Cutter 32 Pinch Roll 33 Support Conveyor 34 Guide Roll 35 Guide Conveyor 36 Drive Cylinder 40 Shuttle Winder Automatic Switching Device 41 Cutter 42 Guide Plate 43 Rotating Blade L Feed Direction W Sheet Product

Claims (2)

[Claims] 1. A winder mounted on a shuttle movably provided in a direction orthogonal to a sheet product feeding direction is alternately moved forward in the feeding direction, and a sheet product hanging through a pinch roll is cut. In the automatic switching device of the shuttle type winder that alternately winds up, the automatic cutter that cuts the sheet product is installed below the pinch roll, and the sheet product that is cut close to the downstream of the automatic cutter is cut. It is characterized in that a support conveyor that supports the end and sends it to the shuttle winder is installed, and a guide conveyor that guides the leading edge of the sheet product to the winding start position of the winder is removably installed downstream of the support conveyor. Shuttle winder automatic switching device. 2. The automatic shuttle winder switching device according to claim 1, wherein an automatic cutter for cutting the sheet product is installed on the feed conveyor.