JPS582782B2 - Airtight material attachment device for joining part of fittings bar material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an airtight material mounting device for inserting and fixing an airtight material into a joining part of a bar material for fittings.

The object of the present invention is to provide an airtight material mounting device that allows airtight material to be mounted reliably and quickly without variation.

Conventionally, the installation of airtight materials was done manually by supplying adhesive into the joining part of the bar material, then inserting the airtight material from one end to the other, and pressing it against the adhesive supply point.
In addition to poor work efficiency, when inserting the airtight material, the adhesive adheres to some parts of the airtight material, making it impossible to securely bond the airtight material by pressing it, and making it impossible to reliably maintain the tension of the airtight material. There was a problem in which the state of addition of materials varied.

This invention was devised to solve the above-mentioned conventional problems.

Hereinafter, the present invention will be explained with reference to an illustrated embodiment. Fig. 1 shows an outline of an airtight material attaching device in an apparatus for processing a bar material B for fittings in an intermittent transfer process and attaching parts to the bar material. In the figure, 1 is a transfer table having guide rails 1a for supporting the ends of the bar material B on both sides thereof, and a pair of left and right feed rods 2 located on the inside of the guide rails 1a on the top thereof. Pivoted in parallel.

Both feed rods 2 are equipped with U-shaped synthetic resin holders 3 on the left and right sides that can hold the bar material B at a predetermined interval. The bar material B is held by moving the holding claws 3 to the opposite side so that the bar material B is supported by the guide rail 1a, moving back, and repeating the action of raising the holding claws in left and right synchronization. It is designed to be transferred intermittently at intervals of the claws 3.

Figures 1 to 3 show bar material holding means provided on the transfer table 1 so as to be able to rise and hold the bar material B at adjacent bar material stopping positions during the transfer process by such a bar material transfer means. ,
The means includes a connecting plate 5 having U-shaped holding claws 4 made of synthetic resin arranged opposite to each other at both ends, an elevating shaft 6 vertically disposed at the lower center thereof, and a transfer table 1 provided to guide the elevating. The vertical hydraulic cylinder 8 is fixed to the lower end of the guide cylinder 7 and has a piston rod 8a connected to the lower end of the lifting shaft.

The vertical stroke of the hydraulic cylinder 8 is regulated by upper and lower limit switches 9,9' whose operating pieces are the lower end of the piston rod projecting downward from the cylinder.

Figures 1, 4, and 5 show the bottom surface of the joining part b of the bar at the position where the bar B is raised the most by the rear side of the bar material holding means in the direction of bar material transfer. The figure shows an adhesive supply means that is integrally provided on the transfer table 1 so as to be able to supply adhesive to the transfer table 1. In the figure, 10 is a mounting frame that is provided integrally with the transfer table 1, and a mounting frame 10 is provided integrally with the transfer table 1. Several sets of nozzle devices 11 and their operating hydraulic cylinders 12 are provided at predetermined intervals.

The nozzle device 11 has a stepped hole 14 in the frame 13,
Adhesive inlet 15 and outlet 15' are provided in the side walls of the large diameter part and the small diameter part, and a step part 15' is provided in the small diameter part of the stepped hole.
A valve stem 19 is provided at one end with a valve body 17 that seats on a valve seat 16 provided near the valve seat 4a, and a seal body 18 for sealing the stepped hole end at the other end. The piston rod 1 of the hydraulic cylinder 12 is projected outward from the piston rod 1 of the hydraulic cylinder 12.
A compression spring 20 is disposed in the large diameter portion of the stepped hole 14 to press the valve body 17 against the valve seat 16, and a bar is raised at the outlet 15' via a bar holding means. A nozzle 21 is provided in the joining part of the material B so that it can be inserted when the material B is raised.

In this case, the bar material lifting limit is determined in the bar material holding means so that the nozzle tip approaches the bottom surface of the joining part of the bar material B, and the hydraulic cylinder is 12 is activated once.

Furthermore, the inlet 15 of each nozzle device 11 has a discharge port of a pump (not shown) connected to an adhesive tank connected to a connector (see FIG. (not shown).

Moreover, FIGS. 1, 6, 7, 8, and 9 show the case where the bar material B is held without rising by the bar material holding means on the front side in the bar material transport direction. shows an airtight material stretching means for stretching the airtight material A just in front of the opening of the joint part;
In the figure, reference numeral 22 denotes a mounting frame that is integrally provided over the transfer table 1, and the bridging portion includes a pair of driven sprockets 23 located on both sides of the transfer table and a driving sprocket located above between them. A sprocket 24 and a tension sprocket 25 are rotatably provided, a chain 26 is stretched through these sprockets, and a motor 27 having an output shaft connected to the drive sprocket is provided so as to be rotatable in forward and reverse directions.

Reference numeral 28 designates a pair of left and right guide rods installed between the rising portions of the mounting frame 22. A sliding block 30 equipped with a pair of upper and lower guide rollers 29 is fitted onto one of the guide rods, and is fitted onto the other. The slide block is mounted movably by rolling a guide roller, and the lower part of the sliding block is attached to the lower part of the chain 26 so that it reciprocates from one side of the transfer table 1 to the other side as the chain moves. has been done.

A mounting base 31 is protruded from the side of the sliding block 30, a pair of left and right support pieces 32 are pivotally attached to the upper part of the mounting base 31, and a compression spring 33 is interposed between the ends of the support pieces on the front side in the forward movement direction of the block. A closing force is applied to the tip of the supporting piece.

An opening piece 32a is provided opposite to the tip of this supporting piece 32,
Hydraulic cylinders 34, 34' are disposed opposite to the upright portions of the mounting frame 22 so as to move the piston rods 34a, 34'a between them.

Furthermore, a guide hole 35 for supplying and guiding the airtight material A between the tips of the supporting pieces 32 is provided in the rising portion of the mounting frame 22 on the rear side (airtight material supply side) in the forward movement direction of the block. Pin holes 3 that intersect and open on the inner surface
6 is provided with the middle portion having a larger diameter.

Inside this pin hole 36, a flanged pin 37 is placed in the middle of the hole.
7a is inserted, and a retracting force is applied via a compression spring 38 interposed between the collar and the piso hole stepped portion on the guide hole side, so that the guide hole 35 is retracted from the inner surface of the guide hole 35.

Further, a solenoid 39 is provided at a rising portion of the mounting frame 22 so that the pin 37 can be projected into the guide hole 35 against the pulling force of the pin 37.

FIG. 1 also shows that the bar material B is
The airtight material pressing means pushes the airtight material A stretched just in front of the opening of the joining part b into the joining part b and presses it against the bottom surface. The joining part b of the bar material B that is raised by the holding means
The presser plate is provided so as to be fitable therein, and together with the bar material holding means, constitutes an airtight material pressing means.

Note that the holding plate 40 and the mounting frame 22 are connected to the guide rod 2.
Although the mounting frame 22 is located above the guide rod 8, the mounting frame 22 is depicted as being located on the side of the guide rod 28 in FIG.

FIGS. 1, 8, and 9 further show airtight material cutting in which the airtight material A installed in the joining part b of the bar material B is cut from its supply side by the above-mentioned airtight material tensioning and pressing means. In the figure, reference numerals 41 and 42 indicate a movable blade and a fixed blade that are vertically provided in front of the guide hole 35 at the upright portion of the mounting frame 22, and these provide a tensioned state between the guide hole and the bar material B. A cutter is configured to cut the airtight material A located at.

43 and 44 are hydraulic cylinders and guides for raising and lowering the movable blade 41.

In the above configuration, the feed rod 2 is moved forward to transfer the bar material B on the holding claw 3, and the holding claw is collapsed to move the bar material B onto the transfer table 1.
pass it over the guide rail 1a of the
By standing up and holding the next bar material B, the bar material B is intermittently transferred in the direction of the arrow in FIG. 1 at intervals of the holding claws 3.

In the transfer process, if the hydraulic cylinders 8 of the front and rear bar material holding means are operated every time the bar material is stopped, the bar material B located directly above the holding claw 4 will be held by the holding claw until the limit switch 9 senses it. be raised.

In the front bar material holding means, when the bar material B is in the highest state, the nozzle 21 is fitted into the joining part b of the bar material and is close to the bottom surface thereof, so the limit switch 9 senses that the hydraulic cylinder is 8 is stopped and the hydraulic cylinder 12 is operated once, the valve stem 19 is pushed in by the piston rod 12a against the force of the compression spring 20, thereby communicating the adhesive inlet 15 and outlet 15'. Therefore, the adhesive passes through the nozzle 21 due to the action of the pump and reaches the bar material B.
It is supplied to the bottom of the assembly section.

Next, when the completion of the operation of the hydraulic cylinder 12 is sensed and the hydraulic cylinder 8 is reversely operated, the holding claw 4 is lowered until the limit switch q is sensed, and during this time the bar material B is moved to the transfer table 1.
is placed on the guide rail 1a.

This bar material B further advances and stops due to the action of the feed rod 2, and then rises due to the aforementioned action of the hydraulic cylinder 8 of the bar material holding means.

Prior to this, while the bar material is advancing, the hydraulic cylinder 34 is actuated once to cause the piston pad 34a to enter between the open pieces 32a and to move out again, and by opening and closing the supporting piece 32, it exits from the guide hole 35. After gripping the tip of the airtight material A on the supporting piece 3, the motor 27 is activated and the supporting piece 3
The sliding block 30 marked with 2 is moved forward and the solenoid 39 is energized to move the pin 37 from the pin hole 36 to the guide hole 3.
If the airtight material A is fixed in a stretched state by protruding into the inside of the bar material A, the stretched airtight material A enters the joining part b of the rising bar material B and is further tensioned by the bar material B. is pressed by a presser plate 40 which is in contact with the bottom surface of the joining part and located directly above the airtight material.

In this way, the airtight material A attached to the joining part b of the bar material B is separated at the part of the airtight material stretched between the bar material and the guide hole 35, but the supply side of the airtight material A is cut. The end will not come out of the guide hole 35 due to the fixing action of the pin 37, and will be able to be gripped by the supporting piece 32 next time.

In this case, cutting is performed by sensing the completion of the upward movement of the hydraulic cylinder 8 and operating the hydraulic cylinder 43 once, thereby lowering the movable blade 41 and sliding it against the fixed blade 42. After cutting, the solenoid 39 The pin 37 is retracted from the guide hole 35 and the hydraulic cylinder 34' is stopped.
, and the piston rond 34'a is opened by the opening piece 32a.
The supporting piece 32 is opened, and the grip on the end of the airtight material is released.

Next, when the completion of the operation of the hydraulic cylinder 43 is sensed and the hydraulic cylinder 8 is operated downward, the bar material B to which the airtight material A is attached is returned to its transfer process.

At this time, completion of the lowering operation of the hydraulic cylinder 8 is sensed, the hydraulic cylinder 34' is reversely operated to close the supporting piece 32, and the motor 27 is reversely operated to return the supporting piece to its original position.

Incidentally, in this embodiment, a hydraulic cylinder is used as a means for raising the bar material B, but it is also possible to use other means instead of this hydraulic cylinder.

For example, as shown in FIGS. 10(a) and (b), the rod 45
It is also possible to use a retaining claw 3' attached to the holder.

In this case, as shown in FIG. 10C, the rod 45 and the feed rod 2 are arranged side by side on the guide rail 1a, and the rod 45 is rotatable around its axis.The holding claw 3' disposed on the rod 45 is At a position where there is no need to raise the bar material B, it is somewhat longer than the holding claw 3, and at a position where it is necessary to raise the bar material B, it is made longer than the holding claw 3 by an amount equivalent to the amount of rise, and the interval between them is The spacing is equal to the spacing between the holding claws 3.

According to this configuration, the bar material B, which has been fed by the feed rod 2 by the arrangement pitch of the holding claws 3, is removed from the holding claws 3 by rotating the holding claws 3' upward, and at the position where it should be raised, it is moved by a predetermined amount. At the same time as being raised, after a predetermined period of time, by reversing the holding claw 3', the holding claw 3' returns to its original position and is engaged with the holding claw 3, and is again fed by one pitch.

In addition, when it is necessary not only to simply raise the bar material B but also to press it against a device waiting above, for example, the presser plate 40, it is necessary to attach an elastic joint as shown in FIGS. 10a and b'. It is preferable that when the bar material B is raised using the holding claws 3'', the bar material B is pressed against the holding plate 40 by a spring arranged in a bendable joint as shown in FIG. 10C'. .

The present invention has the above-described structure, and the airtight material can be inserted into the joining part of the bar material in a tensioned state and further pressed, so that the airtight material can be securely attached by using the adhesive.
It can be made strong and in good condition.

Furthermore, when dragging the airtight material into the joining part of the bar material and inserting it from one end to the other, there is a risk of the adhesive peeling off, but the structure allows the airtight material to be inserted from the opening of the joining part of the bar material. Therefore, there is no peeling of the adhesive, and the above-mentioned attachment state of the airtight material can be guaranteed.

In addition, the system is based on a system in which the bar material is intermittently transferred by combining a bar material transfer means equipped with a reciprocating feeding rod and a bar material holding means, and adhesive is supplied at each adjacent bar material stopping position. Since the structure is such that the airtight material is stretched and attached by pressing, the entire device can be made compact and the work of installing the airtight material can be done efficiently.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a partially sectional front view of the bar material holding means, FIG. 3 is a plan view of the same, and FIG.
The figure is a sectional front view of the main part of the adhesive supply means, FIG. 5 is a side view of the same, FIG. 6 is a plan view of the main part of the airtight material tensioning means, FIG. Figure 9 is a front view and longitudinal sectional view of the airtight material tensioning and cutting means, and Figure 10 a, b, b' is a partial front view and side sectional view showing another bar material lifting means; c'
is a cross-sectional view showing the arrangement thereof. A... Airtight material, B... Bar material, b... Joining part, 1...
...transfer table, 1a...guide rail, 2...feeding rond,
3.3', 3"; 4... Holding claw, 5... Plate body, 6...
Lifting shaft, 7... Guide cylinder, 8... Hydraulic cylinder, 8a...
...Piston Rondo, 9,9'...Limit switch, 1
0 Mounting frame, 11... Nozzle device, 12... Hydraulic cylinder, 12a... Piston rod, 13... Frame, 14... Stepped hole, 14a... Step part, 15... Inlet, 1
5'... Outlet, 16... Valve seat, 17... Valve body, 18...
Seal body, 19... Valve stem, 20... Compression spring, 21...
Nozzle, 22... Mounting frame... Driven sprocket, 24... Drive sprocket, 25
...Tension sprocket, 27...Motor, 28...Guide rod, 29...
... Guide roller, 30 ... Sliding block, 31 ... Mounting base, 32 ... Holding piece, 32a ... Release piece, 33 ... Compression spring, 34.34' ... Hydraulic cylinder, 34a, 34'
a... Piston rod, 35... Guide hole, 36... Pin hole, 37... Pin, 37a... Flange, 38... Compression spring, 39... Solenoid, 40... Holding plate, 41... Movable blade, 42... Fixed blade, 43... Hydraulic cylinder, 44... Guide, 45... Rod.

Claims (1)

[Claims] 1. Left and right feed rods are arranged in parallel so as to be reciprocally movable, bar material holders are provided on the feed rods at predetermined intervals in correspondence with each other on the left and right, and bars are placed at adjacent bar material stopping positions determined by the bar material holders. A bar material holding means capable of lifting the bar material on the material holding part is arranged, and a bar material holding means is arranged on the upper stage of the bar material holding means on the rear side in the bar material transport direction, and a bar material holding means is placed on the bottom surface of the joining part of both ends of the bar material raised by the means. An adhesive supply means equipped with a nozzle device capable of supplying adhesive is disposed, and an adhesive supply means is disposed on the upper stage of the bar material holding means on the front side in the bar material transport direction, directly in front of the opening of the joining part of the bar material held by the means. an airtight material stretching means equipped with an airtight material supply section and a movable gripper capable of stretching the airtight material, and a bar member placed along and above the airtight material stretched by the means. an airtight material pressing means equipped with a presser plate that can be fitted into the section; and an airtight material cutting means capable of cutting the airtight material installed in the joining part of the bar material from the supply side by the airtight material stretching and pressing means. An airtight material mounting device for a joining part of a bar material for fittings, characterized in that: