JPS5828312A - Welding device of tube - Google Patents

Abstract

PURPOSE:To obtain the titled device which can insert an air supplying pipe easily into a wet, eatable tube and can connect them promptly and firmly by combining a cut opening part, a suction holding part, a heat drying part and an air supplying pipe. CONSTITUTION:To a flat and undried tube 11 induced into the device, a cutter 6a is dropped with a cutter holding plate 6 to cut off the tip of the tube 11, then the holding plate 6 is raised attracting the tube 11 through suction holes 8, 9 and simultaneously the air is jetted from a blast hole 10 to inflate the tube 11 cylindrically. Subsequently, after the tube 11 is held by a pair of suction tube pieces 12, 13 of the suction holding part 3, an air supplying pipe 5 is inserted into the heat drying part 4, heating plates 17 and 18 are approached to each other, the shape of the tube 11 is corrected and dried and the tube is welded to the nozzle part 22 of the pipe 5.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tube joining device, which sometimes connects edible tubes to a certain diameter [1! +! This invention relates to a tube joining device used for diameter drying.

Generally, the joining device for edible tubes is
When drying a tube (hereinafter referred to as a tube) to adjust its diameter, a flexible air supply chisel tube is inserted and joined inside one end of the tube, and gas is sucked in from the joined air supply pipe. This is used when c#7 is continuously dried in a dryer while keeping the diameter of the cheap gold at a constant value.

Such a device has the problem that when inserting the nozzle of the air supply pipe into the cut end of the tube, the tube is easily cut due to its elongation and axial properties such as strength, and the difficulty of insertion is increased. . Furthermore, even if the nozzle is properly inserted into the tube, if the surrounding area of the tube is dried using the heating effect of a hair dryer, for example, it will be difficult to dry the tube evenly and tightly, and it will take a certain amount of drying time (according to experiments, about 15 minutes). Furthermore,
The tightly attached tubes are reinforced with a fastening member such as a vinyl tape in order to increase the precision of the close contact, but there is a problem in that when the tube is incompletely dehydrated, the degree of reinforcement of the fastening member is reduced.

In order to solve the above-mentioned problems, the present invention includes a cutting opening that has suction ports above and below the cut end of the tube, and has ventilation ports that inflate the tube by sucking gas into the opening. a suction holding part that grips the tube after it is swollen by the cutting opening, and then fully suctions the tube;
When the nozzle of the air supplying vibrator is inserted a predetermined amount into the tube, the heating and drying section is located behind the suction holding section and holds the nozzle and the cheap and heats and dries them to join them. There is a full range of tube joining equipment to offer.

1 to 8 showing one embodiment of the invention will be described below. In FIG. 1, 1 is a tube joining device;
The tube joining device 1 includes a cutting opening 2 and a suction holding part 3.
and a heating drying section 4, and an air supplying vibrator 5 that can be inserted into these components in the axial direction. The cutting opening 2 has a cutter 6a on its upper side, and has a pair of cutter holding plate 6 that is movable in the vertical direction and a receiving plate 7 that is fixed opposite to the cutter holding plate 6.

The cutter holding plate 6 has a plurality of suction ports 8, one of which is connected to a suction portion (not shown), and the other of which is open to the opposite side. The receiving plate 7 has a hardness sufficient to withstand the impact of the cutter 6a, and has a suction port 9 and an opening 0II which are connected to a suction part (not shown) and which open on the opposite side.
A slightly sloping air outlet is provided. Also, since the cutter 6a and the suction ports 8.9 facing each other are positioned as close as possible due to the structure,
The tube 11 (not shown) allows air to enter from the air outlet 10 and is easy to open.

The suction holding part 3 provided at the rear of the cutting opening 2 includes a pair of suction tube piece 2 fixed to the upper side and a suction tube piece 13 that is movable in the vertical direction opposite to the suction tube piece 12. There are grapes. The suction cylinder pieces 12, 13 each have a semi-cylindrical recess shape facing each other, and the tube 11 is disposed in the direction of the recess.
Multiple absorption holes 1 arranged to efficiently absorb
4.15, each of which is connected to a suction section (not shown).

The heating drying section 4 provided behind the suction holding section 3 is
Heating plates 16 and 17, each movable in the vertical direction, are formed in pairs. The heating plates 6.17 each have stepped semi-cylindrical recesses facing each other, and the shape thereof is formed to correspond to the outer shape of the nozzle 22 of the air supplying vibrator 5. Also, slits 18, 19 and
jlL20.21 is a tube] which is provided to exhaust all steam and moisture generated during heating and drying.

The air supply vibrator 5 provided in front of the cutting opening 2 is integrally composed of a nozzle 22 having an uneven outer shape, an air supply pipe 23 connected to the nozzle 22, and a support portion 24 for holding these. has been done. Further, the air supply vibrator 5 is inserted a predetermined amount toward the rear of the tube 1, and air is sent into the tube 11 from the air supply port 22a.

Next, FIGS. 2 to 78 showing the operation of the apparatus 1 will be explained. FIG. 2 shows the device 1 in an inoperative state;
The undried air-free tube 11 is placed in the apparatus 1.
It is set inside.

3, 4, and 5 show the operation of the cutting opening 2, and in FIG. 3, the cutter holding plate 6 is lowered by turning on the start signal 2 of the sequence circuit (not shown), and the cutter is cut. 6a and the receiving plate 7, the tube 11 is cut with the full impact force, so that the cut end is perpendicular to the longitudinal direction. Next, as shown in FIG.
The tube 11 rises and returns to its original position, and the entire tube 11 opens in the shape of an open mouth. As shown in FIG.
Air from the tube 11 is blown into the opening, and the tube 11 is inflated into a cylindrical shape under the action of this air pressure.

Next, the operation of the suction holding section 3 is shown in FIG. Stop at a position that matches the diameter. This suction tube piece 12.13
At the position, the tube 11 is connected to each suction port 1.
Due to the suction action in step 4.15, it is maintained in a bulged cylindrical shape and is completely prevented from shifting in the cylindrical direction. At this time, the relationship between the swollen diameter of the tube 1 and the diameter of the cylindrical portion of the suction cylinder piece 12 and 13 is determined appropriately in advance.
Further, by appropriately setting the total suction force d of the suction ports 14 and 15, it is possible to grip the tube 1 to a desired diameter. Further, at this stage, the suction port 8 of the cutter holding plate 6 and the suction port 9 of the receiving plate 7 continue to suck the tube 11, and the air from the air outlet JO continues to be blown out.

Next, the off-line diagram and FIG. 8 show the operation of the heating drying section 4 and the air supply pipe 5. It is inserted to a predetermined position where the diameter shape opposes the inner diameter shape of the heating plate 16, 17 and then stopped. At this stage, the blowing of air from the air outlet of the receiving plate 7 is stopped. Thereafter, the heating plates 16, 17 are moved in opposite directions to position the nozzle 22 and tube 11 in a suitable engagement position. There the nozzle 22 and the heating plate 16.1
Since the drying is carried out by heating using the heating means of the tube 1ltd heating plates 16 and 17 that are in close contact with the tube 7, the drying surface can be uniformly dried. The steam and moisture generated in the tube 1 at this time can be effectively discharged to the outside of the heating plate 16, 17 through the slits 8, 9 and the vent holes 20, 21. Therefore, tube 1. Since it shrinks appropriately in the IFi diameter direction and length direction, the effect of increasing the uniformity of the wall thickness and the strength with respect to bondability can be obtained.

In addition, in order to fully control the shrinkage amount of tube 1, heating plate 1
6.17 temperature distribution can be changed, nozzle 22 and heating plate 1
This can be achieved by changing the shape of the eye part of 6.17. In this way, in the states shown in Figures 2 to 8, 1
The cycle operation completes and returns to the initial state. The hot air sent from the vibrator 23 of the air supply pipe 5 is sent into the tube 11 through the air supply port 22ai, and the tube 11 is inflated 4 and introduced into the diameter adjusting dryer.

In the above embodiment, the tube 11 is a heating plate 16, ]7
The nozzle 22 is used to accelerate drying and shorten the bonding time by actively heating the tube 11 from the inside, without necessarily applying heat from the outside. It is also possible to heat it in advance with a separate heating device (not shown) and use it immediately during bonding. Additional bonding time with these methods?
It can be shortened to about 15 to 30 seconds.

As described above, according to the present invention, how difficult is the insertion of the nozzle into the tube? Moreover, since the heating plate surrounds and dries the entire tube during the drying stage, the entire tube can be uniformly shrunk, and the joining accuracy is increased and the joining time is significantly shortened, increasing productivity. This has the effect of increasing the

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention, and FIGS. 2 to 8 show local cross sections of the operation of the present invention.
This is a diagram. DESCRIPTION OF SYMBOLS 1... Joining device, 2... Cutting opening, 3... Suction holding part, 4... Heating drying part, 5... Air supply pipe, 8.9.14.15... Suction port, 10・
...Air outlet, 11...Tube, 16.17...
heating plate. Applicant: Toshiba Machine Co., Ltd.

Claims (1)

[Claims] The cutting part has suction ports on the top and bottom for sucking the cut end of the tube, a cutting opening has a blowing port for sucking gas into the opening to inflate the cheap tube, and a rainbow inflating part is provided at the cutting opening 7. There is a suction holding part that holds the tube with the tube fully opened for suction, and a suction holding part that holds the nozzle and the tube when the nozzle of the air supply pipe located behind the suction holding part is inserted a predetermined amount into the tube. A tube joining device consisting of a heating and drying section which holds the tubes together and heats and dries them to join them.