JPH0349871Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is applicable to gripping and crimping devices, especially synthetic resin materials in the form of rods or columns (including hollow cylinders) such as synthetic resin round belts. The present invention relates to a gripping and crimping device that grips and heats and welds the ends of the holder, or applies an adhesive to bond them.

(Prior art) The ends of conventional synthetic resin round belts and other rod-shaped or columnar (including hollow cylindrical) synthetic resin materials are gripped and heated, welded, or coated with adhesive. For example, (1) Grip both ends of a rod-shaped or columnar synthetic resin material cut to a predetermined length with both hands, and apply the end surface to a hot plate surface or an adhesive applicator. After being brought into contact and heated and melted or an adhesive is applied, both ends are pressed together and welded or bonded.

(2) Both ends of a rod-shaped or columnar synthetic resin material of a specified length are held by a pair of tools, and the end surfaces are brought into contact with a hot plate or an adhesive applicator, etc. to heat melt or apply adhesive. , where both end faces are crimped and welded or glued.

(3) A presser plate is removably attached via a spring to the tips of a pair of crimping levers configured in the shape of pliers, and is located between the tips of the crimping levers and is detachable from this position. The heating plate is movably provided, and after the end of a round belt or the like is clamped between the tips of a pair of crimping levers configured in the shape of pliers and a presser plate removably provided at the tips, the tips are rotating the heating plate in between;
After inserting the end plug of the round belt, etc. and heating it, use the crimp lever to once open the end of the plug to separate the phase heating plate from the end of the round belt, etc., and then tighten the crimp lever to heat the end plug of the round belt, etc. Using a welding tool to weld the
101713) etc. are known.

(Problem to be solved by the invention) However, while the above-mentioned method (1) of manually grasping both ends and welding or gluing them does not require any tools, There are problems such as the possibility that the hand gripping the end of the tube may get heated or come into contact with the adhesive, and in the case of the method using a tool such as a screwdriver as described in (2) above, it is necessary to use two sets of screwdrivers. Since welding, gluing, etc. had to be carried out simultaneously with both hands, it was troublesome to accurately align the ends of the left and right rod-shaped or column-shaped synthetic resin materials, etc., which were gripped separately using two sets of tools. It was hot.

In addition, in the case of the welding tool described in the above-mentioned (3) Japanese Utility Model Application No. 58-101713, a presser plate that is detachably attached to the tips of a pair of crimping levers via a spring is attached and detached. By clamping the ends of a round vinyl belt, etc. to the tip of the same crimping lever, by rotating a heating plate between the end faces of both ends, the end faces of both ends of the round belt, etc. After heating and melting, the crimping lever is opened to separate the heating plate, and then the crimping lever is tightened to weld the end surface of the vinyl belt.The object, such as a vinyl belt, is connected to the tip of the crimping lever and the holding plate. By engaging with the U-shaped engagement groove provided in the U-shaped engagement groove, the alignment of the vinyl belt, etc. held in the same area is achieved indirectly, but it is not possible to align the vinyl belt by bringing the end surfaces of both ends into direct contact with each other. Not only does the rotatable heating plate tend to get in the way, but in this case, there is no means to adjust the pressure bonding force at both ends of the vinyl belt, etc. whose ends are melted by the heating plate. There is no choice but to adjust the crimping force at the end of the round belt, etc. by hand. Therefore, it is best to press the end of a rod-shaped or columnar synthetic resin material cut to a predetermined length with a uniform crimping force. This is not easy and may lead to variations in the welding or adhesion state due to non-uniform pressure bonding force.As far as this point is concerned, it is substantially the same as the conventional examples (1) and (2) above. I have an assignment.

In addition, the crimping tool described in Jitsukyo No. 58-101713 has a heating plate on the pliers-like crimping lever that can be brought close to and removed from the tip of the crimping lever, which has the advantage of being compact. However, there was a problem in that each part was close to each other and required cumbersome operation.

This invention was made by paying attention to the problems of the conventional example as described above, and after aligning and clamping the end of the object by a pair of receiving jaws and pushing jaws whose proximity distance is regulated, The edge of the gripped object is melted by moving the underframe that supports the shaft of the gripping and crimping lever toward and away from the hot plate or adhesive applicator along the guide rail of the heating or adhesive box. Another object of the present invention is to provide a gripping and crimping device that can solve the above-mentioned problems by applying adhesive and applying pressure to the ends by gripping the gripping rod to weld or adhere them.

(Means for Solving the Problems) In order to solve the problems in the conventional example as described above, this invention is based on a pair of gripping rods 1, 1 whose central portions are rotatably pivoted by a pivot 4. The jaws 2, 2 are provided with pushing jaws 11, 11 that can be tightened and loosened by tightening means 8, 10, and a member 5 for maintaining the distance is provided between the receiving jaws 2, 2. An underframe 25 equipped with a tubular bearing 26 that rotatably supports the pivots 4 of the rods 1, 1 is slid onto the guide rails 22, 22 of a heating or bonding box 20 equipped with a hot plate 21 or an adhesive applicator. It can be set freely.

(Function) Since this device has the above-mentioned configuration,
The pair of catch jaws 2, 2 are held at a predetermined distance by the spacing members 5, 5, and the push jaws 11, 11 on the catch jaws 2, 2 are loosened.
Insert both ends VA and VB of an object V such as a synthetic resin belt cut to a predetermined length between 11 and align the ends directly by bringing the end faces into contact.
1 and secure it in place.

Next, the double support jaws 2,
The underframe 25 supporting the gripping rods 1, 1 with an interval of 2 is slid along the guide rails 22, 22 provided in the heating or adhesive application box 20 toward the heating plate 21 or the adhesive applicator side. , the end face of the object is brought into contact with the hot plate 21 or the adhesive applicator to melt it by heating or apply the adhesive, and after that, once the both jaws 2, 2
is released and separated from the hot plate 21 or the adhesive applicator, and the underframe 25 is slid along the guide rails 22, 22 of the heating or bonding box 20 to retreat from the hot plate 21 or the adhesive applicator. After the gripping rods 1, 1 are firmly grasped, both end surfaces of the object V are welded or bonded, and after the welding or gluing is completed, the gripping rods 1, 1 of the double pressing jaws 2, 2 are grasped. Release the force, then loosen the pressing jaws 11, 11 to separate the receiving jaws 2, 2 and the pressing jaws 11, 11 from the object V, and remove the welding or adhesion of the ends VA, VB of the other object V. Prepare for operation.

(Example) An example of this invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a heating box section of an embodiment of this invention, and FIG. 2 is a perspective view of a gripping and crimping tool section.

In the figure, 1 and 1 are the gripping rods, 2 and 2 are the jaws at the ends of the gripping rods 1 and 1, 3 and 3 are the gripping parts at the base of the gripping rods 1 and 1, and 4 is the rotation of both gripping rods 1 and 1. The lower part of the pivot shaft 4 extends downward (not shown) and is supported by a tubular bearing 26, which will be described later. Reference numeral 5 denotes a spacing spring as a spacing member between the catch jaws 2, 2, and the spacing spring 5 is provided between the gripping rods 1, 1.

Reference numerals 6 and 6 indicate proximity limiting protrusions provided on the opposing surfaces of both receiving jaws 2 and 2; 7 and 7 indicate proximity limiting protrusions 6 and 6;
The cushioning rubbers 7, 7 are always in light contact with each other due to the spacing maintaining spring 5, so that the spacing between the two receiving jaws 2, 2 is always maintained. held constant.

Reference numerals 8 and 8 indicate bolts provided on the receiving jaws 2, 2, pusher jaws 11, 11 are inserted into the bolts 8, 8 so as to be able to move toward and away from the receiving jaws 2, 2, and nuts 10, 10 are used to connect the receiving jaws 2, 2. It is tightened on the 2, 2 side.

Note that the receiving jaws 2, 2 and the pushing jaws 11, 11 are both in the opening/closing direction of the gripping rods 1, 1 (left and right direction in FIG. 2).
The gripping surface of each jaw 2, 2, 11, 11 is formed as a rough surface with a large coefficient of friction. Furthermore, if a coiled compression spring is provided between the catch jaw 2 of the bolt 8 and the pusher jaw 11, the pusher jaw 11 will be biased upward so as to move substantially parallel to the catch jaw 2 at all times. Nari, push jaw 11
opening/closing operations become easier.

20 is a heating box equipped with a heating plate 21 at the front (lower part in the first illustration); 22, 22 are heating boxes 2;
2 is a guide rail provided at the bottom of both sides of the guide rail 22, and a stopper 23 is provided at the upper center of the guide rail 22.
4 is a connecting plate that connects the ends of the guide rails 22, 22, 25 is an underframe 25, 26 whose both sides are slidably inserted into the guide rails 22, 22 is a tubular bearing provided in the underframe 25, and 27 is a connecting plate that connects the ends of the guide rails 22, 22; A hook provided on the underframe 25, the hook 27 restricts the movement of the underframe 25 toward the heating plate 21 side of the heating box 20 by engaging with the stopper 23, and thereby , both ends of the object V such as a gripped vinyl belt
The contact positions of VA, VB and the hot plate 21 are regulated.
30 is a power switch.

(Operation of this embodiment) Next, the operation of this embodiment will be explained with reference to an example in which both ends of a synthetic resin belt V are gripped, heated, crimped, and fused.

First, attach the lower part of the pivot 4 of the gripping rods 1, 1 to the underframe 25.
It is inserted into the upper tubular bearing 26 and rotatably supported,
Alternatively, prior to the support, the underframe 25 is pulled forward along the guide rails 22, 22 of the heating box 20, and the lower portions of the pivot shafts 4 of the gripping rods 1, 1 are supported on the tubular bearings 26 thereof.

At this time, the distance between the parts of the catch jaws 2, 2 that grip the object (the V-shaped part in FIG. 2) is controlled by the spacing spring 5 between the proximity limiting protrusions provided on the catch jaws 2, 2. By lightly abutting the buffer springs 7, 7 on the 6, 6, the predetermined spacing is maintained.

After that, loosen the nuts 10 and 10 and press the jaw 1.
1 and 11 are separated from the receiving jaws 2 and 2, and the both ends VA and VB of the synthetic resin belt V cut to a predetermined length are placed between the jaws 2 and 2 and 11 and 11 by bringing their end surfaces into contact with each other. After matching and inserting, the push jaws 11, 11 are tightened with nuts 10, 10 and fixed to the receiving jaws 2, 2.

Next, once the gripping parts 3, 3 of the gripping rods 1, 1 are opened slightly as shown in Fig. 2 to open the end faces of both ends VA, VB, and while maintaining this state, the gripping rods 1,
The underframe 2 is
5 toward the hot plate 21 of the heating box 20 until the hook 27 on the underframe 25 comes into contact with the stopper 23 of the guide rails 22, 22, and then press both ends.
After placing the end faces of VA and VB on both sides of the hot plate 21,
The opening force of both grasping parts 3, 3 is slightly reduced, and both end surfaces are brought into contact with the hot plate 21 to be heated and melted.

After the end faces of both end portions VA and VB are melted, the gripping parts 3 and 3 are opened again to separate both end faces from the hot plate 21.
After pulling the gripping parts 3, 3 and pulling the underframe 25 back toward you, or without pulling it back, by firmly gripping both the gripping parts 3, 3, the object gripping part such as the belt V of the catch jaws 2, 2 can be removed. The distance between the spacing cushioning rubber 7,
In other words, the melted end faces of the ends VA and VB of the synthetic resin belt V are crimped and fused by applying excessive pressure without crushing them excessively, and the crimped state is maintained for a while to fuse them. Complete the outfit.

Next, loosen the nuts 10, 10 and press the jaws 11,
11 is opened and the pressing force of the grasping parts 3, 3 is released, the receiving jaws 2, 2 return to the normal position (the state shown in FIG. 2) by the restoring force of the buffer rubbers 7, 7 and the spacing spring 5. Pull out the belt V with both ends VA and VB end faces fused from between the jaws 2, 2, 11, 11, or separate this gripping and crimping device from the belt V, and grip, heat, and melt other belts, etc. , prepare for fusion, etc.

Note that if the lower part of the pivot shaft 4 of the gripping rods 1, 1 is configured to be detachable from the tubular bearing 26, both ends VA, VB of the belt V can be grasped by the receiving jaws 2, 2 and the pushing jaws 11, 11. The gripping and crimping tool section (Fig. 2) that grips the object is attached to the tubular bearing 2 of the underframe 25.
6 and can be operated at a location remote from the heating box 20.

(Modification) Moreover, this invention can be implemented by modifying the above-mentioned embodiment as follows (not shown).

(1) If the cushioning rubber at the top of the proximity-limiting protrusion of the receiving jaw is removably attached to the protrusion, the purpose of welding can be achieved by selecting the shape, thickness, elasticity, etc. of the buffer rubber. It is possible to provide an object in which the pressing force of the end face of the object end can be selected to suit the material of the object.

(2) The tubular bearing provided on the underframe and the extensions of the pivots of both gripping rods are integrated, and the lower part thereof is supported directly on the underframe.

(3) In place of the heating box 20 and hot plate 21 in FIG. 1, an adhesive box containing an adhesive storage tank and an adhesive applicator from which adhesive flows out from the surface are provided.

In this case, by operating the gripping and crimping device in substantially the same manner as in the above embodiment, the end surface of the rod-shaped or columnar object such as a synthetic resin belt can be uniformly crimped with the adhesive. Uniform adhesion can be achieved with force.

(Effects of the invention) Since this invention has the above-mentioned configuration and functions, the following effects can be obtained.

(1) Insert the end of an object such as a belt into the two pairs of receiving jaws and pushing jaws, bring the end faces into direct contact, align and grip, then open and close the grasping part and heat or bond. Welding or adhesion can be achieved by pushing and pulling the box and by contacting a hot plate or adhesive applicator to melt the end face or apply adhesive.

(2) The crimping-limiting buffer member provided on the receiving jaw of the object regulates the distance between the two jaws during crimping, so the welding or adhesion state of the end surface of the object can be made uniform and highly reliable. Can be used for welding or gluing.

(3) Operations other than gripping both ends of objects such as objects to be welded or bonded using the receiving jaws and pressing jaws, i.e.,
Heating the object held between the receiving jaw and the pressing jaw or moving it to the adhesive application position, heating or applying the adhesive, welding it or moving it to the adhesive position, and melting both ends of the object by gripping the gripping rod. , gluing, etc. can be performed simultaneously with the push/pull operation of the grasping part, and moreover, with one hand.

In addition, a stopper 23 is provided which engages a hook 27 provided at a suitable position on the underframe 25 with a suitable position on the guide rails 22, 22 of the heating or adhesive box 20, which is equipped with a hot plate or an adhesive coating tool, and restricts the sliding thereof. If provided, the hot plate 21 or adhesive applicator and push jaws 11, 11
Since the corresponding position with the support jaws 2 and 2 can be automatically set to a constant value, heating or adhesive application of the end face of the object V can be performed using the hot plate 21 or the adhesive applicator in a comparatively small manner, resulting in improved thermal efficiency and It is possible to provide something suitable for improving adhesive application efficiency.

Also, bars with arbitrary cross-sectional shapes are provided on both sides of the underframe 25, and the bars are inserted into rails 22, 22 provided on both sides of the heating or bonding box 20 and having the same cross-sectional shape as the bar-shaped members. For example, when this device is not in use, the bar portion of the underframe 25 is pulled out from the hole-shaped guide rail of the box 20 and placed on the box 20, thereby allowing the device to be stored compactly.

[Brief explanation of drawings]

The drawings show an embodiment of the gripping and crimping device according to the invention, with FIG. 1 being a perspective view of a guide rail additional heat box portion, and FIG. 2 being a perspective view of its gripping and crimping tool. 1... Gripping rod, 2... Jaw catch, 3... Grasping part, 4
... Pivot, 5 ... Spacing member, 7 ... Crimping force limiting buffer member, 11 ... Pushing jaw, 20 ... Heating box, 21 ... Hot plate, 22 ... Guide rail,
25...Underframe, 26...Tubular bearing.

Claims (1)

[Claims for Utility Model Registration] (1) Push jaws 11, 11 are fastened to receiving jaws 2, 2 at the ends of a pair of gripping rods 1, 1 whose central portions are rotatably pivoted by a pivot 4. The attachment means 8, 10 are provided to be tightenable and loosenable, and the both receiving jaws 2,
The distance maintaining member 5 and the pressing force limiting members 7, 7 are provided between the pair of gripping rods 1, 2.
Tubular bearing 26 rotatably supports the pivot shaft 4 of 1
1. A gripping and crimping device characterized in that a frame 25 provided with the following is slidably provided on guide rails 22, 22 of a heating or bonding box 20 provided with a heating plate 21 or an adhesive applicator. (2) A stopper 23 is provided at an appropriate position on the guide rail 22 provided at the front of the heating or adhesive application box, and a hook 27 that engages with the stopper 23 is attached to the underframe 25 placed on the guide rail 22. 2. The gripping and crimping device according to claim 1, wherein the gripping and crimping device is provided at an appropriate location. (3) Bars with arbitrary cross-sections are provided on both sides of the underframe 25, and the bars are attached to guide rails 22, 22 that are provided on both sides of the heating or bonding box 20 and have the same cross-section as the bar-shaped members. The gripping and crimping device according to claim 1, characterized in that the device is slidably inserted.