JPH05185223A - Device for working product having mesh member - Google Patents

Abstract

PURPOSE:To shorten a working process by providing a third work as a mesh member held with a flange part in a first work and a flange part in a second work and using a torch for generating arc toward a joining part from the first to the third works. CONSTITUTION:This product is composed of the first work 1 as the lower cylinder forming the flange part 1b, the second work 2 as the upper cylinder forming a tapered part 3a inward and the flange part 3c and the third work 2 as the mesh member held with the flange part 1b in the first work and the flange part 3c in the second work. In the working device, the torch 13 generating the arc toward the joining part from the first to the third works and a lower holder 9 for laying the first work 1 and also rotating at the time of generating the arc, and a forming ring 6 for extending looseness of the third work welded with the first and the second works by pressing the tapered part 3a in the second work 3 are provided. By this method, the rationalization is obtd. and the working process is shortened and the product quality is improved.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for processing an article having a mesh member.

2. Description of the Related Art FIG. 3 is a view for explaining a conventional method for processing an article having a mesh member such as a wire mesh, for example, a sieve. In the figure, as shown in FIG.
A circularly cut mesh member 2 is attached while being bent and soldered to the circumferential portion of the lower cylinder 1 press-molded to have the tapered portion 1a on the side of the tapered portion 1a.
Next, as shown in FIG. 3 (a), the taper portion 3a of the upper cylinder 3 and the taper portion 1a of the lower cylinder 1 which are press-molded to have the taper portion 3a and the edge portion 3b are combined, As shown in (c) of FIG. 3, the edge portion 3b is bent inward and attached to the taper portion 1a of the lower cylinder 1. next,
The slack of the mesh member 2 is eliminated by pressing the tapered portions 1a and 3a into contact with each other. The sieve was processed in this way.

However, the conventional sieving method as described above has the following drawbacks. (1) A complicated process of cutting a mesh member into a circle, bending it, attaching it to a lower cylinder, soldering it, attaching an upper cylinder to this lower cylinder, and then pressing a taper portion I need. (2) Sieves are used in a wide range of industries, such as food, chemistry, medical, etc. Especially, in the case of food, soldering of mesh members poses a food hygiene problem.
Also in the chemical and medical fields, vibration and heat may mix solder.

In order to eliminate the above drawbacks, the present invention provides a first work which is a lower cylinder having a collar portion and an upper cylinder having a taper portion and a collar portion. The second work, and the collar part and the second of the first work.
The third work, which is a mesh member sandwiched by the collar of the second work, a torch that generates an arc toward the joint of the first to third work, and the first work is placed. , A lower holder that rotates when an arc occurs, and a forming ring that presses the taper portion of the second work and extends the slack of the third work welded to the first and second works in the circumferential direction. An object of the present invention is to provide an apparatus for processing an article having a mesh member.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram for explaining one embodiment of the present invention. In the figure, the lower cylinder 1 which is the first work
A flange portion 1b is formed on the upper surface of the upper cylinder 3 which is a second work, and a taper portion 3a and a flange portion 3c are formed on the upper cylinder 3 as shown in FIG. 1A. 2 is sandwiched by the collar portion 1b of the lower cylinder 1 and the collar portion 3c of the upper cylinder 3. The configuration of the processing equipment is shown in Fig. 1 (b).
As shown in FIG. 5, an upper mechanism including an upper and lower cylinder 4, a molding cylinder 5, a molding ring 6, a clamping spring 7, and a welding ring 8, a lower holder 9, a positioning ring 10, a motor 11, and Lower mechanism composed of lower upper and lower cylinders 12 and torch 1 for generating an arc
3 and a shield gas supply mechanism including a valve 14, a gas pipe 15, and a nozzle 16 for spraying argon gas as a shield gas so that the welds inside the lower cylinder 1 and the upper cylinder 3 are not oxidized. The lower cylinder 1, the mesh member 2 and the upper cylinder 3, which are works, are clamped by the upper mechanism and the lower mechanism. The torch 13 is arranged at the position of the mesh member 2 in a direction parallel to the mesh member 2 so that the arc hits the center of the welded portion. First, the lower cylinder 1 is placed on the lower holder 9, and then the mesh member 2 is arranged on the lower cylinder 1 and the upper cylinder 3 is arranged on the mesh member 2 in order in accordance with the positioning ring 10. In this case, the mesh member 2 is cut beforehand according to the lower cylinder 1. The upper and lower cylinders 4 are actuated to lower the upper mechanism, and the welding ring 8 clamps the work by the elastic force of the clamping springs 7.
The mesh member 2 and the lower cylinder 1 are brought into close contact with each other. After the lower upper / lower cylinder 12 is activated and the positioning ring 10 is lowered, an arc is generated from the torch 13 and the motor 1
1, the welding is performed while rotating the work together with the mechanism for clamping the work such as the lower holder 9. at the same time,
The valve 14 operates and a proper amount of shield gas is ejected from the nozzle 16 toward the weld inside the work through the gas pipe 15 to prevent oxidation of the weld inside the work. In this way, when welding is completed over the entire circumference of the lower cylinder 1 and the upper cylinder 3, the arc from the torch 13 is extinguished,
At the same time, the valve 14 is activated to stop the supply of the shield gas. Next, the molding cylinder 5 operates and the molding ring 6
Compresses the clamping spring 7 and descends to press the tapered portion 3a of the upper cylinder 3 to extend the slack of the mesh member 2 welded to the lower cylinder 1 and the upper cylinder 3 in the circumferential direction. Next, the upper and lower cylinders 4 are actuated, and the forming ring 6, the clamping spring 7 and the welding ring 8 are raised. Next, the lower upper and lower cylinders 12 are activated,
The positioning ring 10 rises and returns to its original position, and the work that has been processed is taken out. In this way, the work of the workpiece is completed. FIG. 2 is a diagram for explaining another embodiment of the present invention. This embodiment is different from the embodiment shown in FIG. 1 in that only welding is performed, while the mesh member 2 is cut into a predetermined shape while being simultaneously welded.
To weld the lower cylinder 1 and the upper cylinder 3 to each other. Therefore, here, the torch 13 is not arranged parallel to the mesh member 2 as in the embodiment of FIG.
It is arranged so as to be oriented at ˜90 °. A plurality of pin cylinders 17 are arranged above the positioning ring 10 used in the embodiment of FIG. In this embodiment, the positioning ring 10 does not serve for positioning but serves to support the pin cylinder 17. First, the lower holder 9
The lower cylinder 1 is placed on and the mesh member 2 is placed thereon. In this case, the mesh member 2 does not have to be cut in advance in accordance with the lower cylinder 1. Next, the molding ring 6
The upper cylinder 3 is arranged so as to fit into the inner diameter of the. The upper and lower cylinders 4 are actuated to lower the upper mechanism, and the elastic force of the clamping spring 7 clamps the workpiece by the welding ring 8 to bring the upper cylinder 3, the mesh member 2 and the lower cylinder 1 into close contact with each other. Next, an arc is generated from the torch 13, and the work is rotated by the motor 11 together with the mechanism that clamps the work, such as the lower holder 9, so that the arc melts the ends of the upper cylinder 3 and the lower cylinder 1. While welding the workpiece, the process proceeds while cutting the portion sandwiched by the upper cylinder 3 and the lower cylinder 1 of the mesh member 2 and the other portion. At the same time, the valve 14 is actuated, and a proper amount of shield gas is ejected from the nozzle 16 toward the weld inside the work through the gas pipe 15 to prevent oxidation of the weld inside the work. In this way, when welding and cutting are completed over the entire circumference of the lower cylinder 1 and the upper cylinder 3, the arc from the torch 13 is extinguished, and at the same time the valve 14 is activated to stop the supply of the shield gas. Next, the forming cylinder 5 operates, and the forming ring 6 moves down while compressing the clamping spring 7 to press the tapered portion 3a of the upper cylinder 3 and the mesh welded to the lower cylinder 1 and the upper cylinder 3. The slack of the member 2 is extended in the circumferential direction. Next, the lower upper and lower cylinders 12 are activated, and the positioning ring 10
Rises, and the plurality of pin cylinders 17 attached to the positioning ring reach above the position of the flange portion 3c of the upper cylinder 3. Here, the pin cylinder 17 operates and the pin of the pin cylinder 17 pops out so as to be located on the upper surface of the flange portion 3c of the upper cylinder 3. Next, the upper and lower cylinders 4 are actuated, and the forming ring 6, the clamping spring 7, and the welding ring 8 rise, but at this time, the work that has been machined is
It is removed from the molding ring 6. Next, pin cylinder 1
7 operates and the pin retracts and returns to its original position. Next, the lower up / down cylinder 12 operates, the positioning ring 10 descends and returns to the original position, and the work that has been processed is taken out. In this way, the work of the workpiece is completed. In this embodiment, since the mesh member 2 does not have to be cut into a desired shape in advance, the article having the mesh member can be processed more easily than in the embodiment of FIG.

According to the present invention, the following effects can be obtained. (1) Rationalization is achieved, and the work process can be shortened. (2) Since no solder is used, product quality is improved,
No matter how the product is used at high temperatures, solder will not be mixed in, and safety and health problems will disappear.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of the present invention.

FIG. 2 is a diagram for explaining an embodiment of the present invention.

FIG. 3 is a diagram for explaining a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lower cylinder 1a ... Tapered part 1b ... Collar part 2 ... Mesh member 3 ... Upper cylinder 3a ... Tapered part 3b ... Edge part 3c ... Collar part 4 ... Upper and lower cylinders 5 ... Molding cylinder 6 ... Molding ring 7 ... Clamping spring 8 ... Welding ring 9 ... Lower holder 10 ... Positioning ring 11 ... Motor 12 ... Lower up / down cylinder 13 ... Torch 14 ... Valve 15 ... Gas pipe 16 ... Nozzle 17 ... Pin cylinder

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B23K 37/053 Z 7011-4E

Claims (5)

[Claims] 1. A first workpiece, which is a lower cylinder having a collar portion formed therein, a second workpiece, which is an upper cylinder having a tapered portion and a collar portion, and a collar portion of the first workpiece. Second
The third work, which is a mesh member sandwiched by the collar of the second work, a torch that generates an arc toward the joint of the first to third work, and the first work is placed. , A lower holder that rotates when an arc occurs, and a forming ring that presses the taper portion of the second work and extends the slack of the third work welded to the first and second works in the circumferential direction. An apparatus for processing an article having a mesh member. 2. The mesh according to claim 1, further comprising a shield gas supply mechanism for ejecting an appropriate amount of shield gas toward the welds inside the first to third workpieces when an arc occurs. An apparatus for processing an article having a member. 3. The apparatus for processing an article having a mesh member according to claim 1, wherein the torch is arranged in a direction parallel to the third work. 4. The apparatus for processing an article having a mesh member according to claim 1, wherein the torch is arranged at an angle of 45 ° to 90 ° with respect to the third work. 5. An apparatus for processing an article having a mesh member according to claim 1, further comprising a pin cylinder for removing the second work, which has been processed, from the molding ring.