JPH0512258Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a fabric gripping device, and its purpose is to be able to automatically and reliably grip fabrics that are generally difficult to grip. Moreover, it is an object of the present invention to provide a fabric gripping device that can move the fabric to the next process in this state.

(Prior Art) Conventionally, there is a device shown in FIG. 6, for example, as a device for grasping and moving cloth.

This allows the protrusions 33, 33, which are provided facing inward at one end of the pivot side of the clamping claws 24, 24, which are pivotally supported on one side to the support plate 23, to the opposite side edges of the end of the slide member 34. The sliding material 34 is pulled and slid by a wire 38, and the gripping claws 24, 24 are rotated about the pivot portions to bring their tips close to each other. The fabric is sandwiched and held by cushioning members 25, 25 provided at the ends of the clamping claws 24, 24.

(Problem to be solved by the invention) However, since the fabric is slippery,
Even if the fabric is sandwiched between the cushioning members 25, 25 at the ends of the clamping claws 24, 24 as described above, it is difficult to grasp the fabric, and even if the fabric is grabbed, the fabric will not move away from the cushioning members 25, 25. There was a problem where the device could slip off and fall downwards.

Therefore, in view of the above-mentioned conventional situation, the inventors of this invention have solved the above-mentioned problems and are able to automatically and reliably grasp fabrics that are generally difficult to grasp when grasping.
Moreover, they continued their intensive research into a fabric gripping device that could move the fabric to the next process in this state.

(Means for Solving the Problems) That is, this invention has a pair of gripping parts, which are attached to a bar so that the interval can be adjusted freely, and one end of which is rotatably pivoted on a base. The fabric gripping device includes the rod member attached to the tip of the supported support arm, and the gripping portion is provided with a pair of cloth gripping members that are opened and closed in the cloth gripping direction by a cylinder. The cloth gripping member is characterized in that a needle member for biting into the cloth is removably attached to a predetermined location of the cloth gripping member, the needle member slightly protruding from the lower surface.

Furthermore, the pair of gripping parts have a pair of left and right side walls, and the curved end of one of the curved members is pivotally supported on a pivot part provided on one side of one of the side walls, and the bent end of one of the curved members is supported on the other side wall of the other side wall. The curved end of the other curved material, which is bent in the opposite direction to the one curved material, is pivotally supported on a pivot provided on the side, and a cloth gripping member is attached to an elastic body at the lower end of each of the curved materials. A cylinder is disposed above each curved member to press the curved members and bring the cloth gripping members closer to each other.

By providing a fabric gripping device having the above structure, we have succeeded in creating a device that can solve all of the above problems.

(Embodiment) Hereinafter, an embodiment of the fabric gripping device according to the invention will be described based on FIGS. 1 to 5.

In the figure, reference numerals 1 and 1 denote a pair of gripping parts provided on the left and right sides of the bar 2 so that the interval can be adjusted freely, and support arms rotatably attached to the base 3 via a pivot shaft 3a. The bar 2 is attached to the tip of the portion 4.

5 is a cylinder that moves the bar 2 back and forth,
The rod 2 is moved back and forth by this cylinder 5.

A grip mounting plate 6 is attached to the bar 2 at its substantially central portion, and a lower end of a support rod 18 hanging from the tip of the support arm 4 is attached to the grip mounting plate 6.

A pipe 7 protrudes upward from one side of the gripping parts 1, 1, and is connected to a guide plate 9 via an impact spring 8.
is attached to the guide plates 9, 9, and the bar 2 is attached to the guide plates 9, 9.
are installed so that the spacing can be freely adjusted.

The gripping parts 1, 1 are provided with a pair of plate-shaped cloth gripping members 10, 10 which are opened and closed in the cloth gripping direction by cylinders 16, 16 and whose lower surfaces are uneven.

As shown in FIG. 2, this cloth gripping member 10 has
A through-hole 10 for attaching the needle upwards and downwards at a predetermined location.
a, 10a are provided, and a screw hole 1 for fixing the needle members 11, 11 that is attached to the through holes 10a, 10a on the side end side of the cloth gripping member 10.
0b, 10b are provided and these screw holes 10b, 10
The needle members 11, 11 are fixed by screwing the mounting bolts 12, 12 into the holes b as shown in FIG.

This needle member 11 is designed according to the thickness of the fabric H. For example, when the fabric H is thin, the downward protrusion of the needle member 11 from the cloth gripping member 10 is reduced, and when the fabric H is thick, the downward protrusion of the needle member 11 from the cloth gripping member 10 is reduced. Make it bigger.

The appropriate protrusion size is 0.5 mm to 1.5 mm.

The pair of gripping parts 1, 1 have a pair of left and right side walls 1.
a, 1a, and as shown in FIG. 3, the curved end of one of the curved members 13 is pivoted to the pivot portion 1b provided on one side of one side wall, and The other curved timber 1 is bent in the opposite direction to the one curved timber 13 on the pivot portion 1c provided on the side.
The curved end portions of the curved members 13 and 14 are pivotally supported.
Cloth gripping members 10, 10 are respectively attached to the lower ends of the cloth holding members 10 with elastic bodies 15 made of springs interposed therebetween.

On the other hand, by pressing each curved material 13, 14 above each curved material 13, 14, the cloth gripping member 10,
Cylinders 16, 16 are arranged which bring the 10 closer to each other.

The cloth gripping device according to this invention having the above structure is used in the following manner.

First, as shown in FIG. 1, the pair of gripping parts 1, 1 are placed above the fabric H,
When activated, the curved members 13 and 14 move the cloth gripping members 10 and 10 in the approaching direction to grip a predetermined portion of the cloth H. At this time, since the needle members 11, 11 protrude from the cloth gripping members 10, 10, the needle members 11, 11 are attached to the cloth H.
is inserted and the fabric is held in a sandwiched state, so the fabric H is securely held.

In this state, the support arm part 4 is rotated by the rotation of the pivot shaft 3a, and the bar 2 and each gripping part 1, 1 are in a state where the fabric H is gripped by each gripping part 1, 1. It is rotated in a predetermined direction.

When the fabric H is moved to the predetermined position, the cylinders 16, 16 are released and the fabric H is placed in the predetermined position.

The action of gripping the fabric H with the gripping parts 1, 1 is such that when the cylinders 16, 16 are moved downward, the respective curved members 13, 14 move in opposite directions around their pivot parts, that is, each of the cloth grips Since the members 10, 10 are moved in a direction closer to each other, the fabric H can be easily gripped.

(Effect of the invention) This invention has a pair of gripping parts, the pair of gripping parts are attached to a bar so that the interval can be adjusted freely, and one end of the gripping parts is attached to a support arm rotatably supported on a base. A fabric gripping device, wherein the rod is attached to the tip of the fabric gripping part, and the gripping part is provided with a pair of fabric grasping members that are opened and closed in the fabric grasping direction by a cylinder,
This invention is characterized in that a needle member for biting into the cloth, which slightly protrudes from the lower surface, is removably attached to a predetermined location of the cloth gripping member, so that the following effects can be achieved.

That is, the cloth gripping member of the gripping portion moves close to the cloth by the action of the cylinder, grips the cloth, and the cloth is cut into the cloth with the needle member biting into the cloth. Since it is pinched and gripped, when the cloth is moved in a gripped state or in a gripped state, the cloth can be reliably gripped and moved without coming off.

Furthermore, the pair of gripping parts have a pair of left and right side walls, and the curved end of one of the curved members is pivotally supported on a pivot part provided on one side of one of the side walls, and The curved end of the other curved material, which is bent in the opposite direction to the one curved material, is pivotally supported on a pivot provided on the side wall, and a cloth gripping member is attached to an elastic body at the lower end of each curved material. Since the cloth gripping members are attached with the intervening members, and a cylinder is disposed above each of the curved members to press the curved members and bring the cloth gripping members closer to each other, the following effects can be achieved.

That is, when the cylinder is moved downward, each curved member moves in the opposite direction around the pivot part, that is, the cloth gripping members move in the direction toward each other. Therefore, the fabric can be easily gripped and the structure is simple.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the fabric gripping device according to the present invention, FIG. 2 is an exploded perspective view of the main parts of the cloth gripping member and the needle member, and FIG. 3 is the cloth gripping device of the cloth gripping device according to the present invention. FIG. 4 is a front view showing the internal structure of the gripping part with one side wall removed; FIG. 5 is a front view of the gripping part gripping the fabric; FIG. 6 is an explanatory diagram of a conventional example. DESCRIPTION OF SYMBOLS 1... Gripping part, 1a... Side wall, 1b... Pivotal part, 2... Bar, 3... Base, 4... Support arm,
10...Cloth gripping member, 11...Needle member, 13,1
4... Curved member, 15... Elastic body, 16... Cylinder.

Claims (1)

[Utility Model Claims] (1) A fabric gripping device having a pair of gripping parts, the pair of gripping parts being attached to a rod with the distance therebetween freely adjustable, the rod being attached to the tip of a support arm the end of which is rotatably supported on a base, and the gripping parts being provided with a pair of fabric gripping members which are opened and closed in the fabric gripping direction by a cylinder,
A fabric gripping device according to claim 1, characterized in that a needle member for biting into the fabric, which protrudes slightly from the underside, is detachably attached to a predetermined position of the fabric gripping member. (2) The pair of gripping sections has a pair of left and right side walls, a curved end of one curved member is pivotally supported on a pivot part provided on one side wall of one of the side walls, a curved end of the other curved member bent in the opposite direction to the one curved member is pivotally supported on a pivot part provided on the other side wall of the other side wall, fabric gripping members are attached to the lower ends of the curved members respectively with elastic bodies interposed therebetween, and a cylinder is provided above each curved member for pressing the curved members to bring the fabric gripping members closer to each other.