JPH08787U - Loom cloth winding device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a cloth take-up device in a loom having a woven cloth restraining mechanism, which prevents the woven cloth from being caught again in the woven cloth restraining mechanism when the woven cloth is cut. To aim. [Structure] A surface roller 7 and two press rollers 11, 1 are provided on the upstream side of a cloth flow of a winding mechanism 3 for winding a woven cloth 4 on a cloth winding roll 8 by rotation of the winding rollers 5, 6.
In the loom 1 in which the woven cloth restraining mechanism 100 composed of 2 and 2 is provided to increase the restraining force of the woven cloth 4, the press roller 1
A wire rod 17 suspended from both side frames 2 is provided in the woven fabric winding side space between the surface roller 7 and the surface roller 7 to prevent the woven fabric from being caught in this portion due to slack when the woven fabric is cut.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cloth take-up device for a loom, and more particularly to a cloth take-up device that prevents the cloth from being taken up by a cloth-constraining mechanism located upstream of the cloth when cutting the cloth when replacing the cloth-rolling roll.

[0002]

[Prior art]

 Generally, a cloth winding device of a loom is configured such that a cloth winding roll is placed on a pair of winding rollers, and the woven cloth is wound on the cloth winding roll by rotationally driving the winding roller. Between the mechanism and the cloth fell side of the loom, there is provided a mechanism for increasing the tension of the woven cloth so that the cloth is not loosened.

This mechanism is usually composed of two guide bars, a surface roller that interlocks with the take-up roller, and a press roller that is pressed against the surface roller. By passing through the guide bar → surface roller → press roller → guide bar, the tension is increased and finally it is wound around the cloth winding roll.

By the way, in such a cloth winding device, when the cloth winding roll is fully wound, it is naturally necessary to replace the cloth winding roll with an empty roll, but a technique for automatically performing this is known. (Japanese Patent Laid-Open No. 4-34049). FIG. 4 is a process schematic diagram showing a series of roll replacement processes.

In this roll exchanging process, the empty roll 200 is placed in advance on a loom or the like, and as shown in FIG. 4A, the fully wound cloth winding roll 201 is discharged to the front of the loom by the discharging mechanism 202. This process is followed by a process of cutting the woven fabric 4 of the cloth winding roll 201 with a cutter 203 or the like (b), and then blowing a piece 4a of the woven fabric upward with an air jet 204 or the like (c), Then, the winding work is continued by winding it around the empty roll 200 (d).

[0006]

[Problems to be solved by the device]

 However, in the loom including the surface roller 7 and the two press rollers 11 and 12 on the upstream side of the winding mechanism as described above, when the cloth 4 is cut along with the replacement of the cloth winding roll 201, the cloth drastically decreases. The woven cloth 4 is loosened by the cloth tension, and as a result, the woven cloth 4 is wound between the surface roller 7 and the press roller 12 as shown in FIGS. Poor picking may occur.

In view of the above problems, the present invention prevents the woven fabric from becoming slackened when the woven fabric is cut when the wrapping roll is exchanged, and the woven fabric is again wound around the press roller and the surface roller on the side of the wrapping roll. An object of the present invention is to provide a simple cloth winding device.

[0008]

[Means for Solving the Problems]

 According to the present invention to achieve the above object, the surface roller and the surface roller are pressed to the upstream side of the cloth flow of the winding mechanism that winds the cloth on the cloth roll by the rotation of the winding roller. A cloth winding device for a loom, wherein a plurality of press rollers are provided, and the woven cloth is constrained by passing the woven cloth between the surf cloth roller and both press rollers. A fabric roll-in prevention member is provided in the space on the woven fabric roll-up side between the press roller positioned at and the surface roller.

[0009]

[Action]

 By providing a cloth winding prevention member in the space on the cloth winding side between the press roller on the most downstream side of the cloth cloth restraining mechanism and the surface roller, the cloth wound on the cloth winding roll side can be provided with a cloth winding prevention member. Intrusion into the pressure contact area between the surface roller and press roller is prevented.

[0010]

【Example】

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a partial side view of a loom 1 showing a schematic configuration of a cloth winding device E according to the present invention.

A winding mechanism 3 is provided at a lower front portion of the side frame 2 of the loom 1. The take-up mechanism 3 is a so-called surface drive type in which the take-up rollers 5 and 6 whose peripheral surfaces are made of a material such as synthetic rubber having frictional force and durability against the woven cloth 4 are provided. Has become. One of the winding rollers 5 and 6 is driven and the other is rotatably supported. In this embodiment, the roller 6 is driven. It is adapted to be driven by being connected to a surface roller 7 which is laterally stretched across the front upper portion of the side frame 2 and which is connected via a power transmission mechanism (not shown) such as a chain or a timing belt. The take-up roller 5 is driven to rotate together with the cloth-winding roll 8 by driving the roller 6 through the paper-cylindrical cloth-winding roll 8 placed over the rollers 5 and 6. . On this cloth winding roll 8, the woven cloth 4 woven by the loom 1 is guided from the cloth fell position 9 side to the guide bar 10 → surface roller 7 → press roller 11 → press roller 12 → guide bars 13, 14, 15 → The cloth-wrapping roll 8 and the front roller 5 are sequentially passed and wound. In the present specification, the roll around which the cloth is wound is referred to as the cloth-wrapping roll 8, and the roll around which the cloth is not wound is referred to as the empty roll 16.

The cloth winding device E according to this embodiment includes an empty roll supply device 20, a payout mechanism 30, a cloth winding roll holding mechanism 40, a cutting mechanism 50, a winding mechanism 80, a woven cloth restraining mechanism 100 and a control means 120. ing. The configuration will be briefly described below.

The empty roll supply mechanism 20 stores the empty roll 16 above the winding mechanism 3, and after the fully wound cloth winding roll 8 is dispensed, the empty roll 16 is wound up. To be supplied to. The empty roll supply mechanism 20 includes a stocker 22 in which two channel members 21 are mounted inside both side frames 2 of the loom 1 so that their openings face each other. Both channel members 21 form an empty roll passage 23 for movably supporting and storing both ends of the paper-cylindrical empty roll 16 in opposed groove portions, and are wound from the front side of the loom 1. It is attached so as to be inclined toward the attachment mechanism 3. On the other hand, the empty roll passage 23 is provided with a retractable stopper 25 that controls storage and release of the empty roll 16. The stopper 25 is composed of a pin 26 that is supported so as to be retractable from the empty roll passage 23, and an electromagnet body 27 that operates the pin 26 to be retracted. Then, when the electromagnet body 27 is urged by a command issued from the control means 120, the pin 26 protruding in the empty roll passage 23 is retracted, and when deenergized, the pin 26 is advanced by a spring. That is, the stocker 22 rolls and drops the empty roll 16 when the electromagnet body 27 is energized, sends it between the front and rear rollers 5, 6 and places it on both rollers 5, 6 to deactivate it. The empty roll 16 is locked and stored.

The payout mechanism 30 moves the cloth winding roll 8 from the winding mechanism 3 to the front of the loom 1 when the winding amount of the woven fabric 4 around the cloth winding roll 8 located in the winding mechanism 3 reaches a predetermined amount. It is something to pay out. The payout mechanism 30 is provided with a pair of payout arms 32 formed of a plate-like body that is swingable in the front-rear direction about a support shaft 31 whose both ends are rotatably supported by the side frame 2. By the extension drive of the air cylinder 34 actuated by the control signal from the control means 120, the payout arm 32 moves forward around the support shaft 31 from a predetermined stop position behind the loom 1 to the front of the loom 1. By this forward movement, the push-out portion 33 of the payout arm 32 pushes the both ends of the cloth winding roll 8 on the winding mechanism 3 that protrude in the left-right direction of the loom more than the woven cloth 4 to move the cloth winding roll 8 forward and backward. Transfer from 5 and 6 to the cloth winding holding mechanism 40. After the transfer, the air cylinder 34 is driven to contract, so that the payout arm 32 returns to the rear side between the front and rear rollers 5 and 6 and stops at a predetermined stop position as shown in FIG. The front roller 5 of the winding mechanism 3 is rotatably attached to the support shaft 31 via a bearing member.

The cloth winding roll holding mechanism 40 is for temporarily storing the cloth winding roll 8 discharged by the discharging mechanism 30.

The cutting mechanism 50 is woven between the front roller 5 of the winding mechanism 3 and the cloth winding roll 8 transferred to the cloth winding roll holding mechanism 40 according to a control signal from a control device 120 described later. 4 is cut.

The winding mechanism 80 causes the winding mechanism side cutting portion (hereinafter, referred to as a cutting portion) of the woven fabric 4 cut by the cutting mechanism 50 to be wound on the winding mechanism 3 by a control signal from the control means 120. It is to be wound around the empty roll 16 that has been supplied and has become a new cloth winding roll.

The winding mechanism 80 is provided in the lower front portion of the side frame 2 and is composed of a blowing nozzle 81, a separation nozzle 82, and the like. The blow-up nozzle 81 blows up the cut portion of the woven fabric 4 onto the empty roll 16 to polymerize it. When the cut portion of the woven fabric 4 polymerized on the empty roll 16 projects downward from between the empty roll 16 and the winding roller 6, the separation nozzle 82 winds the cut portion of the woven fabric 4 into the winding roller 6. Is to be separated from.

The woven cloth restraining mechanism 100 increases the restraining force of the woven cloth 4 at the time of weaving so that the woven cloth 4 does not become loose at the cloth fell position 9, and mainly the surface roller 7 and It is composed of two press rollers 11 and 12 which rotate in contact with this and a guide bar 10.

Like the take-up rollers 5 and 6, the press rollers 11 and 12 have a peripheral surface formed of a material such as synthetic rubber having a frictional force and durability against the woven cloth 4, and the surface roller 7 drives the surface. It is a type. However, as described above, the flow of the woven cloth 4 in the lever constraining mechanism 100 is such that the woven cloth 4 moving in the arrow direction first passes through the guide bar 10 and then the outer circumference of the surface roller 7 rotating in the arrow direction. → Between the surface roller 7 and the press roller 12 → Between the surface roller 7 and the press roller 11 → The outer circumference of the press roller 11 → The outer circumference of the press roller 12 is passed to the downstream side.

In the woven fabric restraint mechanism 100 configured as described above, according to the present embodiment, the woven fabric is woven from the contact portion between the press roller 12 and the surface roller 7 located on the most downstream side of the woven fabric flow described above. In the space located on the cloth winding side, a cloth winding preventing member for preventing re-rolling of the woven cloth 4 after passing through the press roller 12 is provided.

As shown in FIG. 2, this cloth wrapping prevention member can be composed of, for example, a wire (wire material) 17 that is locked to the side frames 2 on both sides and extends in the direction of the axis 7a of the surface roller 7. When the woven cloth is cut by the above-mentioned cutting mechanism 50, the woven cloth 4 after passing through the press roller 12 located on the most downstream side of the woven cloth restraining mechanism 100 due to a momentary slack of the woven cloth is the surface roller 7 and the press roller 12. It is to prevent the contact (pressing) part from being caught again.

As another embodiment of the cloth wrapping prevention member, as shown in FIG. 3, a bar member 18 protruding from one side frame 2 toward the other side frame 2 may be formed. (Only one side is shown in the figure).

Although the schematic configuration and operation of each mechanism constituting the cloth winding device E according to the present embodiment have been described above, the shape of the illustrated embodiment regarding the cloth winding prevention member of the woven cloth restraining mechanism has been described. It is not limited to a number.

Also, the operation of each mechanism associated with the roll replacement is basically the same as that described in the section of the prior art with reference to FIG. 4, except that the cloth wrapping prevention member according to this embodiment is different. Thus, the cut-in of the piece 4a is only prevented when the woven cloth 4 is cut.

[0027]

[Effect of device]

 As described above, according to the present invention, the cloth winding prevention member is provided in the space on the cloth winding side between the press roller on the cloth winding roll side and the surface roller. It is possible to prevent the woven fabric from being wound between the surface roller and the press roller after passing through the roll. It is possible to provide a cloth winding device that does not get caught.

[Brief description of drawings]

FIG. 1 is a side view of a cloth winding device of a loom according to an embodiment of the present invention.

FIG. 2 is a view of the woven cloth restraining mechanism of the apparatus of FIG. 1 viewed from the direction of arrow A.

FIG. 3 is a view showing another embodiment of the present invention different from FIGS. 1 and 2.

FIG. 4 is a diagram showing a cloth-rolling roll replacement step in order, and further, (d) is a view showing a woven-material winding phenomenon by a surface roller and a press roller at the time of cutting the cloth.

[Explanation of symbols]

 E cloth winding device 1 weaving machine 3 winding mechanism 4 woven cloth 5,6 winding roller 7 surface roller 8 cloth winding roll 11,12 press roller 17 wire rod (cloth winding prevention member) 18 rod (cloth winding prevention member) 100 weave Cloth restraint mechanism

Claims (1)

[Scope of utility model registration request] 1. A surface roller and a plurality of press rollers pressed against the surface roller are provided on the upstream side of the cloth flow of a winding machine for winding a woven cloth on a cloth roll by rotation of the winding roller. A cloth winding device for a loom, wherein a woven cloth is constrained by passing the woven cloth between a surface roller and both press rollers, the press roller being located on the inner cloth roll side of the press roller and the surface roller. And a cloth winding prevention member provided in a space between the cloth winding side and the cloth winding apparatus for a loom.