JP5423498B2 - Unvulcanized rubber material supply system - Google Patents

Description

  The present invention relates to a rubber material supply system, and more particularly to an unvulcanized rubber material supply system that can unwind a long unvulcanized rubber material without deformation and supply the unvulcanized rubber material to a predetermined region.

  In the process of manufacturing rubber products such as tires, a long unvulcanized rubber material is wound into a roll together with a liner and stocked, and is unwound from the material roll as necessary and separated and supplied from the liner. (See, for example, Patent Document 1). Unvulcanized rubber material is easily deformed when tension is applied. Therefore, by providing a festoon or the like in the middle of the supply path from the material roll to the supply destination to loosen the unvulcanized rubber material, the speed difference between the unwinding speed from the material roll and the supply speed to the supply destination. So that unnecessary tension does not act on the unvulcanized rubber material.

  However, tension is applied to the unvulcanized rubber material by the weight of the loosened unvulcanized rubber material. Due to this tension, the unvulcanized rubber material is deformed, so that improvement has been required.

JP 2006-150684 A

  An object of the present invention is to provide a supply system for an unvulcanized rubber material that can unwind a long unvulcanized rubber material without deformation and supply it to a predetermined region.

  In order to achieve the above object, an unvulcanized rubber material supply system of the present invention includes a material supply unit and a material transport unit, and winds a long unvulcanized rubber material together with a liner around the material supply unit. A material take-up shaft, a liner take-up shaft that winds up the liner unwound together with the unvulcanized rubber material from the material take-up shaft and separates it from the unvulcanized rubber material, and drives the liner take-up shaft And a liner fixing means for fixing the liner in the middle of the liner path between the material take-up shaft and the liner take-up shaft, and the material transport unit is reciprocated from the standby position to the supply destination. And a material holding means for holding the tip of the unvulcanized rubber material at the supply destination. The liner fixing means and the liner provided in the material supply unit are provided on the carriage. A support portion for hanging the liner of the liner path between the take-up shaft and a liner fixing means for fixing the liner; and a mounting on which the unvulcanized rubber material separated from the liner of the liner path is mounted When the unvulcanized rubber material is supplied, the carriage is moved to the supply destination while the liner is fixed to the carriage by the liner fixing means provided on the carriage, and the liner winding shaft The unvulcanized rubber material is unwound together with the liner from the material take-up shaft, and then the tip of the unvulcanized rubber material placed on the placement portion is After fixing to the supply area of the supply destination by the material pressing means, the liner fixing state by the liner fixing means provided on the carriage is released, and the material Uncured rubber material while moving the carriage to the standby position side by driving the liner take-up shaft so as to take up the liner in a state where the liner is fixed by the liner fixing means provided in the feeding unit Is separated from the liner of the liner path and is arranged in the supply region.

  According to the present invention, the material supply unit is provided with a material winding shaft for winding a long unvulcanized rubber material together with the liner, and a liner unwound together with the unvulcanized rubber material from the material winding shaft. A liner take-up shaft wound up separately from the vulcanized rubber material, a liner driving means for driving the liner take-up shaft, and a liner in the middle of a liner path between the material take-up shaft and the liner take-up shaft And a material holding unit for holding the tip of the unvulcanized rubber material at the supply destination. Further, a support portion that hangs the liner in the liner path between the liner fixing means and the liner take-up shaft provided in the material supply unit, and a liner fixing means for fixing the liner And a placement portion on which the unvulcanized rubber material separated from the liner of the liner path is placed, and when the unvulcanized rubber material is supplied, a liner fixing means provided on the carriage is used. While the liner is fixed to the carriage, the carriage is moved to the supply destination, and the liner take-up shaft is driven to unwind the liner, so that the unvulcanized rubber material is brought together with the liner from the material take-up shaft. Since unwinding, unnecessary tension does not act on the unvulcanized rubber material to be unwound. And after fixing the front-end | tip part of the unvulcanized rubber material mounted in the said mounting part to the supply area | region of a supply destination by the said material pressing means, the fixing of the liner by the liner fixing means provided in the said cart was cancelled | released In addition, the carriage is moved to the standby position side by driving the liner take-up shaft so as to take up the liner, with the liner fixed by the liner fixing means provided in the material supply unit. On the other hand, since the unvulcanized rubber material is separated from the liner of the liner path and disposed in the supply region, unnecessary tension does not act on the disposed unvulcanized rubber material. In this way, unnecessary tension does not act on the unvulcanized rubber material throughout the entire process, so the long unvulcanized rubber material is unwound from the material winding shaft and separated from the liner. And can be supplied to a predetermined area.

  Here, it is also possible to provide a cutting device for cutting the unvulcanized rubber material arranged in the supply region into a predetermined length. Thereby, the unvulcanized rubber material having a predetermined length can be repeatedly supplied to the supply region.

  Furthermore, the supply area can be a movable tray. Thereby, the unvulcanized rubber material cut into a predetermined length can be moved to an arbitrary place while being placed on the tray without being deformed.

  It is also possible to provide a guide plate on the carriage that is opposed to the carriage in the width direction of the carriage, and that guides the unvulcanized rubber material separated from the liner in the liner path. Thereby, the unvulcanized rubber material can be accurately arranged in the supply region.

It is explanatory drawing which illustrates the supply system of the unvulcanized rubber material of this invention. It is explanatory drawing which illustrates the process of unwinding an unvulcanized rubber material. It is explanatory drawing which illustrates the process of arrange | positioning an unvulcanized rubber material on a tray. It is explanatory drawing which illustrates the process of returning a trolley | bogie to a standby position.

  Hereinafter, the supply system of the unvulcanized rubber material of the present invention will be described based on the embodiments shown in the drawings.

  As illustrated in FIG. 1, the unvulcanized rubber material supply system of the present invention includes a material supply unit 1 and a material transport unit 11.

  The material supply unit 1 includes a material winding shaft 2 that winds a long unvulcanized rubber material R together with the liner L, and a liner L that is unwound together with the unvulcanized rubber material R from the material winding shaft 2. A liner take-up shaft 3 that is taken up separately from the unvulcanized rubber material R is rotatably supported by a shaft support frame 5. The material winding shaft 2 is provided with a shaft brake 2a that restricts the rotation of the shaft.

  The unvulcanized rubber material R is disposed on a wider liner L and is wound around the material winding shaft 2 together with the liner L in a roll shape. The liner L is formed of a resin having excellent tensile strength and small elongation.

  The liner winding shaft 3 is driven to rotate forward and counterclockwise by liner driving means 4 such as a drive motor. When the liner take-up shaft 3 rotates forward, the liner L is taken up, and when it rotates in the opposite direction, the liner L is taken out.

  Between the material take-up shaft 2 and the liner take-up shaft 3, there are a press roller 7 and support rollers 8, 9, 10 provided in the material supply unit 1, and a press roller 18 provided in a carriage 12 described later. A liner path is formed by the liner L being wound around the liner. The material supply unit 1 is provided with a liner fixing means 6 for fixing the liner L in the middle of the liner path. In this embodiment, a fluid cylinder is used as the liner fixing means 6, and the liner L is fixed by the rod tip of the fluid cylinder pressing the liner L against the presser roller 7.

  The material transport unit 11 is provided with a carriage 12 that can reciprocate on the base 15 from a standby position to a supply destination, and a material pressing means 17 that presses the tip of the unvulcanized rubber material R at the supply destination. As the material pressing means 17, a fluid cylinder such as an air cylinder can be used. Moreover, the cutting device 20 which cut | disconnects the unvulcanized rubber material R arrange | positioned in a supply area | region to predetermined length is provided.

  The carriage 12 is guided by a guide rail 16 extending from the standby position to the supply destination, and is configured to reciprocate by the carriage driving means 16a. As the carriage driving means 16a, a fluid cylinder such as an air cylinder can be used.

  The presser roller 18 provided on the carriage 12 serves as a support portion that wraps around the liner in the liner path between the liner fixing means 6 provided on the material supply unit 1 and the liner take-up shaft 3. A liner fixing means 14 for fixing the liner L to the carriage 12 is provided. In this embodiment, a fluid cylinder such as an air cylinder is used as the liner fixing means 14, and the liner L is fixed to the carriage 12 by the rod tip of this fluid cylinder pressing the liner L against the presser roller 18. Is done.

  Further, a support roller 19 is provided on the supply destination side of the carriage 12 with respect to the presser roller 18, and the unvulcanized rubber material R separated from the liner L by the support roller 19 has a slight slack, so that the carriage 12 It is supposed to be placed on top. A mounting portion 13b that slides in the front-rear direction of the carriage 12 is provided at the distal end portion of the carriage 12, and the distal end portion of the unvulcanized rubber material R is placed on the placing portion 13b. The vertical distance between the support roller 19 and the mounting portion 13b is made as small as possible so that tension due to its own weight does not act on the unvulcanized rubber material R.

  Further, the carriage 12 is provided with a pair of guide plates 13a facing each other with a gap in the carriage width direction, and the unvulcanized rubber material R separated from the liner L of the liner path by the guide plates 13a is a predetermined amount. It is configured to be guided to the position. The guide plate 13a is installed so that the interval between the opposing guide plates 13a can be changed.

  When supplying the unvulcanized rubber material R, first, as illustrated in FIG. 2, the liner L is fixed to the carriage 12 by the liner fixing means 14 provided on the carriage 12. In this state, the carriage 12 is moved to a predetermined position of the supply destination by the carriage driving means 16a, and the liner take-up shaft 3 is driven to unwind the liner L so that the unvulcanized rubber is taken from the material take-up shaft 2. Unwind material R with liner L. At this time, the liner L that has been unwound by the moderate action of the shaft brake 2a is kept in a tensioned state. A stopper is provided on the guide rail 16 so that the carriage 12 is stopped at a predetermined position of the supply destination. In this step, unnecessary tension does not act on the unvulcanized rubber material R, so that the unvulcanized rubber material R is not deformed.

  Next, as illustrated in FIG. 3, the front end portion of the unvulcanized rubber material R placed on the placement portion 13 b is fixed to the supply area of the supply destination by the press head 17 a of the material press means 17. In this embodiment, the supply area is a movable tray 21 fixed to the supply destination. Therefore, by sliding the mounting portion 13a rearward, the front end portion of the unvulcanized rubber material R is mounted on the tray 21, and the mounted portion is pressed against the tray 21 by the press head 17a and fixed. Is done.

  Thereafter, the liner L is fixed by the liner fixing means 14 provided on the carriage 12 and the liner L is fixed by the liner fixing means 6 provided on the material supply unit 1. Is driven to wind up the liner L. The carriage driving means 16a is in a free state where it does not operate so that the carriage 12 can move freely.

  Due to the rotation of the liner take-up shaft 3, the carriage 12 moves backward to a predetermined position on the standby position side. With this backward movement, the unvulcanized rubber material R is separated from the liner L in the liner path, and the support roller 19 is moved. Then, it is arranged on the tray 21 while being guided by the guide plate 13a. A stopper is provided on the guide rail 16 so that the carriage 12 is stopped at a predetermined position on the standby position side. At this time, unnecessary tension does not act on the unvulcanized rubber material R separated from the liner L and disposed on the tray 21, so that the unvulcanized rubber material R is not deformed.

  By operating the cutting device 20 that has been retracted at this position, the unvulcanized rubber material R is cut into a predetermined length and placed on the tray 21. As the cutting device 20, a rotating round tooth, a heater cutter, a shearing cutter, or the like can be used. Without providing the cutting device 20, the unvulcanized rubber material R can be cut into a predetermined length by manual work. In addition, after the unvulcanized rubber material R is placed on the tray 21, the fixing of the unvulcanized rubber material R to the front end portion by the pressing head 17a is released at an appropriate timing.

  In order to reduce the frictional force between the guide plate 13a and the mounting portion 13b with the unvulcanized rubber material R, the guide plate 13a and the placement portion 13b are set to have a low friction specification. For example, the portions of the guide plate 13a and the placement portion 13b that are in contact with the unvulcanized rubber material R are made of fluororesin.

  Next, as illustrated in FIG. 4, the liner fixing means provided in the material supply unit 1 in the state where the fixing of the liner L by the liner fixing means 14 provided in the carriage 12 is released as in the above-described backward movement. 6, the liner L is fixed, the liner take-up shaft 3 is driven to take up the liner L, and the carriage 12 is further moved backward to stop at the standby position.

  In this way, in the present invention, unnecessary tension does not act on the unvulcanized rubber material R through all the steps, so that the long unvulcanized rubber material R can be removed from the material take-up shaft 2 without deformation. It can be unwound and separated from the liner L and supplied to a predetermined area. Since the unwinding speed of the unvulcanized rubber material R from the material winding shaft 2 and the supply speed to the supply destination are the same, the unvulcanized rubber material R is loosened in the middle to absorb the difference between both speeds. There is no need.

  When a new unvulcanized rubber material R is supplied, the same process as described above (the process shown in FIGS. 1 to 4) may be performed. Thereby, the unvulcanized rubber material R having a predetermined length can be repeatedly supplied to the supply region.

  Although the supply area is not limited to the movable tray 21 as in this embodiment, the tray 21 can be used to change the tray without deforming the unvulcanized rubber material R cut to a predetermined length. 21 can be moved to an arbitrary place.

DESCRIPTION OF SYMBOLS 1 Material supply unit 2 Material winding shaft 2a Shaft brake 3 Liner winding shaft 4 Liner drive means 5 Shaft support frame 6 Liner fixing means 7 Press roller 8, 9, 10 Support roller 11 Material conveyance unit 12 Cart 13a Guide plate 13b Mount Place 14 Liner fixing means 15 Base 16 Guide rail 16a Cart drive means 17 Material pressing means 17a Pressing head 18 Pressing roller 19 Support roller 20 Cutting device 21 Tray L Liner R Unvulcanized rubber material

Claims (4)

A material supply unit and a material transfer unit;
A material take-up shaft for winding a long unvulcanized rubber material together with a liner to the material supply unit, and a liner unwound together with the unvulcanized rubber material from the material take-up shaft, and an unvulcanized rubber material Is a liner take-up shaft to be taken up separately, liner drive means for driving the liner take-up shaft, and liner fixing to fix the liner in the middle of the liner path between the material take-up shaft and the liner take-up shaft Means,
The material conveying unit is provided with a carriage that can reciprocate from a standby position to a supply destination, and a material pressing means that presses the tip of the unvulcanized rubber material at the supply destination,
The carriage is provided with a support portion that wraps a liner in a liner path between a liner fixing means and a liner winding shaft provided in the material supply unit, and a liner fixing means for fixing the liner, and the liner path And a placement portion on which the unvulcanized rubber material separated from the liner is placed,
When supplying the unvulcanized rubber material, the carriage is moved to the supply destination with the liner fixed to the carriage by the liner fixing means provided on the carriage, and the liner take-up shaft is wound around the liner. Unwind rubber material together with the liner from the material winding shaft by driving it out,
Next, after fixing the front end portion of the unvulcanized rubber material placed on the placement portion to the supply area of the supply destination by the material pressing means, the fixing of the liner by the liner fixing means provided on the carriage is released. In addition, the carriage is moved to the standby position side by driving the liner take-up shaft so as to take up the liner, with the liner fixed by the liner fixing means provided in the material supply unit. An unvulcanized rubber material supply system, wherein the unvulcanized rubber material is separated from the liner of the liner path and disposed in the supply region.   The unvulcanized rubber material supply system according to claim 1, further comprising a cutting device that cuts the unvulcanized rubber material disposed in the supply region into a predetermined length.   The unvulcanized rubber material supply system according to claim 2, wherein the supply region is a movable tray.   4. The guide plate according to any one of claims 1 to 3, wherein a guide plate facing the cart width direction is provided on the cart, and the unvulcanized rubber material separated from the liner of the liner path is guided by the guide plate. An unvulcanized rubber material supply system according to claim 1.

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