KR100257919B1 - Pressing and collect formative method utilizing it of pipe coupler - Google Patents

Abstract

PURPOSE: A producing method of a collet is provided to prevent a separation of a tube pipe by insert-injecting a metal material in an inner wall of an elastic blade and to easily combine a clip by changing a shape of a flange. CONSTITUTION: A press material(100) is formed by a stainless steel and a plate shape. Forming spaces are formed in the press material(100) at regular intervals. Forming materials(200) are formed in each forming space. Setting holes(110,120) are formed in both ends and the center of the press material(100). An injection material is loaded in an insert plate(210) and clinched after setting the press material(100) in a setting device. The injection material is formed in a collet(300) shape. The insert plate(210) is inserted in an inner wall of an elastic blade in the collet(300). A supporting rib and a cutting groove(213) are exposed. In cutting the cutting groove(213), the collet(300) is separated from the supporting rib. An inverse hanging sill(212) is exposed. A separation preventing sill(211) is inserted inside a body of the elastic blade. A flange is formed integrally.

Description

Method for manufacturing collet for tube pipe connector

The present invention relates to a tube tube connecting port for transporting fluid or air, and in particular, when the tube tube is connected to the outer circumferential surface of the tube when the jaw squeezes into the tightening to prevent the tube tube is easily pulled out, the flange portion of the collet The present invention relates to a method for producing a collet for a tube tube connector to facilitate gripping.

In general, a tube tube used as a water purifier pipe or a chemical delivery tube is usually made of synthetic resin, and such a tube tube is required to be easily connected and maintain watertightness or airtightness due to its characteristics.

However, in general, the tube tube connector is not only cumbersome in connection with the structure, but when a vibration is applied to the connection part, the tube tube is easily pulled out, causing problems such as leakage of chemicals or liquids.

Therefore, conventionally, in view of the above problems, the tube tube connector has been conceived as shown in FIG.

1 is a cross-sectional view illustrating a state in which a joint and a collet, which are tube tube connectors, are assembled, and the joint 1 has a tapered surface 3 that is narrowed toward the end of the joint 1 on the inner circumferential surface thereof. And there is a locking jaw 5 for the O-ring (4) and a locking jaw (6) for the tube tube (7).

At one end of the collet 8, a plurality of cutouts 8a are formed in the longitudinal direction to be detachably fitted to the insertion opening 2 of the joint 1, and a flange 9 is formed at the other end.

In order to connect the tube tube 7 using the conventional collet 8 and the joint 1, the tube tube 7 is first inserted in the state where the elastic blade 8b is inserted into the insertion opening 2 of the joint 1. When inserted into the collet 8, the tube tube 7 is seated on the locking jaw 6 while expanding the inner diameter of the O-ring (4).

At this time, pull the tube tube 7 in the direction of the arrow in the state that the end of the tube tube 7 is seated on the locking jaw (6) O-ring 4 elastically fitted to the tube tube (7) tube tube (7) When the elastic wing 8b side is pushed along with the tape, the elastic wing 8b is reduced in diameter while contacting the tapered surface 3 of the joint 1 to tighten the tube tube 7.

However, such a conventional collet (8) has the advantage that the tube tube (7) connection or disassembly operation is easy because the diameter of the collet (8) in contact with the tapered surface (3) to tighten the tube tube (7) while reducing the diameter. The technical configuration of only tightening the tube tube 7 while the elastic blade 8b of the collet 8 is in contact with the tapered surface 3 is easy to connect the tube tube when the connection part becomes loose or external contact is applied for a long time. 7) There was a drawback to missing out.

Accordingly, in order to compensate for the drawback that the tube tube is easily removed in recent years, as shown in FIG. 2, when the elastic wing 21 of the collet 20 contacts the tapered surface 11 of the joint 10 and the diameter is reduced, the tube is reduced. The collet 20 has been introduced to the outer circumferential surface of the tube 30 to tighten the locking plate 22 more forcefully.

Since the collet 20 tightens the outer circumferential surface of the tube tube 30 by using the locking plate 22, there is an advantage that the tube tube 30 is tightened more tightly than the conventional collet 8, but the elastic wings 21 Since the locking pins 22 formed on the inner wall are integrally injected with the collet 20 made of a synthetic resin material, the following problems occur.

First, because of the material of the locking pin 22 could not ask the outer circumferential surface of the tube tube 30 was only a second tightening.

Second, the locking pin 22 formed on the inner wall of the elastic wing 21 is vertical when viewed from the side, when pulling the tube tube 30, there was a phenomenon that the slip without being caught on the outer peripheral surface of the tube tube (30). .

Third, when the tube tube 30 is connected for a long time after use, the locking pin 22 is easily worn on the material to shorten the life of the product, thereby lowering consumer reliability.

On the other hand, the elastic blade 21 is reduced in diameter while contacting the tapered surface 11, the elastic blade 21 is tapered surface 11 by external contact in a state that the outer peripheral surface of the tube tube 30 is firmly fastened. A predetermined thickness between the end of the joint 10 and the flange 23 of the collet 20 in order to prevent the tube 10 from being pulled out by loosening the coupling state of the joint 10 and the collet 20 apart from The clip 40 is configured to fit.

However, since the flange 23 portion of the collet 20 is formed in a simple circle, it is difficult for a user to grip the flange 23 portion, and thus, a disadvantage arises in that a lot of force is required when the clip 40 is inserted or removed.

Therefore, the present invention has been made to solve the problems of the prior art, its purpose is to insert and insert a metal material such as stainless steel on the inner wall of the elastic wing of the collet while tightening while digging into the outer peripheral surface of the tube tube It is to provide a method for producing a collet for the tube tube connector to prevent the tube tube is easily pulled out.

It is another object of the present invention to provide a method for manufacturing a collet for a tube tube connector, by which a flange can be easily changed by changing the flange shape of the collet, thereby making it possible to easily separate the clip.

1 is a cross-sectional view of a conventional tube tube connector.

2 is a cross-sectional view of another tube tube connector.

3 is a perspective view of a press product according to the present invention.

Figure 4 is an excerpt of the main portion of the press according to the present invention.

5 is a perspective view showing a state in which an injection molded product is formed in the press according to the present invention.

6 is a cross-sectional view of the collet according to the present invention.

7 is a plan view showing an embodiment of a collet according to the present invention,

(a) shows that the flange of the collet is rectangular,

(b) shows that the flange of the collet is rhombic.

8 is a cross-sectional view of the joint and the collet in accordance with the present invention.

9 shows an embodiment of a press product in the present invention,

(a) is a plan view of the press product,

(b) is a perspective view of the collet formed by the press product of (a).

10 is a plan view showing another embodiment of the present invention press.

* Explanation of symbols for main parts of the drawings

100: press water 110,120: setting hole

130: molding space 200: molding

210: insert plate 211: release prevention jaw

212: stationary jaw 213: cutting groove

214: banding 300: collet

310: elastic wing 320: flange

400: joint 500: tube tube

As a means for achieving the above object, the present invention, by forming a molding space at regular intervals, and through the preparatory step of preparing a plate-like fleece is provided with a plurality of moldings in the molding space, The injection process of clinching the injection molding up and down with respect to the molding in the state where the prepared plastics are set, and the cutting process of cutting the cutting part with the cutting machine when a part of the molding is inserted into the injection molding through the injection process and the cutting machine of the cutting process. When the injection molding is separated from the press by a part of the insert plate is exposed to the outside of each of the inner side of the elastic wing and the opposite direction is characterized by a series of manufacturing process in which one flange is completed by integrally molded.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

EXAMPLE

[Preparation Process]

3 is a perspective view of the press according to the present invention, the press 100 is made of a metal material such as stainless steel in the form of a plate, the plate-shaped press 100 is formed at a predetermined interval between the molding space 130 It is formed in order in the direction, the molding space 130 is formed in each of the molding 200 with a predetermined length and interval toward the inside.

At both ends and the center of the press 100, setting holes 110 and 120 for setting positions of the injection molding and the insert plate 210 are formed, respectively, and the molding 200 is formed of the press. It is located integrally with 100 on the horizontal line.

Here, the number of the molding space 130 is not limited as shown in the drawings and may be formed as many or less depending on the situation, the molding 200 is naturally formed according to the formation of the molding space 130.

Figure 4 is a perspective view of the main portion of the press according to the present invention, the molding 200 is largely composed of an insert plate 210 is inserted into the injection molding and a support rib 220 for supporting the insert plate 210, the insert Cutting grooves 213 for separating the insert plate 210 from the support ribs 220 are formed at both ends between the plate 210 and the support ribs 220, respectively.

Inside the insert plate 210, when the insert plate 210 is inserted into the injection molding, the release prevention jaw 211 is formed so that the insert plate 210 is not easily separated to the outside, and the tube tube 500 is connected to the outside. Reverse catching jaw 212 that is dug into the outer peripheral surface of the tube tube 500 is formed integrally.

In order for the departure prevention jaw 211 and the reverse jamming jaw 212 to perform its function, it is required that the bodies of the departure prevention jaw 211 and the reverse jamming jaw 212 are bent to one side 214.

That is, the separation prevention jaw 211 may be selectively banded 214 to the front or rear if the insert plate 210 does not fall out of the body of the collet 300, the reverse jaw 212 is a tube tube 500 When pulling, it is desirable that the tube tube 500 be banded 214 with a constant inclination angle in the opposite direction to pull the outer circumferential surface.

Injection process

In order to integrally inject the molding 200 into the press 100 prepared in the preparation process, the press 100 is set in a setting machine (not shown) by using the setting grooves 110 and 120, and then the injection molding Clinching up and down while displacing the insert 200 into the insert plate 210 side of the molding 200 causes injection molding of the injection molded product into a predetermined shape as shown in FIG.

At this time, the injection molded product is formed into a collet 300 shape, the insert plate 210 is inserted into the inner wall of the elastic wing 310 of the collet 300 and the support rib 320 and the cutting groove 213 are exposed to the outside. It becomes a state.

[Cutting process]

When the cutting groove 213 is cut with a cutting machine (not shown) in the above state, the collet 300 is separated from the support rib 220.

As shown in FIG. 6, the shape of the collet 300 separated in the cutting process is as shown in FIG. 6. The reverse catching jaw 212 of the insert plate 210 is exposed to the outside and the release preventing jaw 211 is formed inside the elastic wing 310. ) Is embedded in the body of the elastic wing 310 and in the opposite direction the flange 320 is integrally molded.

Here, the shape of the flange 320 of the collet 300 to be injection molded is not limited to an oval shape. If the clip can be easily separated by being easily gripped by a finger, the flange 320 may have a rectangular shape 321 as shown in FIG. It may be formed or as a rhombus 322 as shown in (b).

As such, when one collet 300 is completed through a series of manufacturing processes such as a preparation process, an injection process, and a cutting process, the collet 300 is inserted into the insertion hole 410 of the joint 400 as shown in FIG. After the tube tube 500 is inserted into the collet 300 while being inserted into the tube tube 500, the O-ring 420 elastically fitted to the tube tube 500 is pulled out of the tube tube 500. The elastic wing 310 is pushed while coming along.

At this time, the elastic wings 310 of the collet 300 to be pulled while the diameter is reduced while contacting the tapered surface 430 of the joint 400 to tighten the tube tube 500, while the reverse catching jaw 212 is a tube Engage into the outer circumferential surface of the tube 500 so that the tube tube 500 is firmly fastened.

Since the reverse jaw 212 of the insert plate 210 is banded 214 in the opposite direction in which the tube tube 500 is pulled, it easily digs an outer circumferential surface when the tube tube 500 is pulled, and the separation prevention jaw 211 ) Is also bent in one direction (214) so that the insert plate 210 is not easily separated from the collet (300).

When the clip 440 is inserted while the finger grips the flange 320 formed in an elliptical, rectangular or rhombus shape as described above, the flange 320 is formed in the longitudinal direction as a whole and easily grips the flange 320. The clip 440 can be easily inserted and removed accordingly.

Contrary to the above, when the tube tube 500 is to be disassembled, the clip 440 is separated from the collet 300, and then the collet 300 is pressed inwards, and the reverse jamming jaw that is dug into the outer circumferential surface of the tube tube 500. Since 212 is removed from the tapered surface 430, the tightening state of the collet 300 is relaxed, so that the tube tube 500 can be separated.

9 is a cross-sectional view showing an embodiment of the present invention, (a) the molding space 130a of the press 100a is formed in a circular shape as a whole, a plurality of moldings (210a) in the circular molding space (130a) (B) is a perspective view showing a state in which the collet 300a is molded by the press product 100a of (a), depending on the number of moldings 210a. The elastic wings 310a of the collet 300a are formed in the same manner, and the reverse engaging jaw 212a is formed on the elastic wings 310a, respectively.

Here, the tip of the reverse catching jaw 212a that digs the outer circumferential surface of the tube tube 300 is not limited to being rounded, and if the tube tube 500 can be easily dug, it may be deformed into a straight line or various other forms. It is preferable that at least three to eight molded articles 210a are formed in the molding space 130a.

That is, when the number of the moldings 210a is 3 or less, the elastic wings 310a to be injection-molded are reduced, and thus the tip of the reverse catching jaw 212a inserted into the elastic wings 310a is lengthened by the tube tube 300. It is difficult to dig, and the diameter of the tube tube 300 is limited, but when the molded article 210a is eight or more, the molding of the elastic wing 310a becomes complicated, and it becomes difficult to perform its function.

10 shows another embodiment of the present invention, in which one of the presses 100b has a molding space 130b having a relatively large diameter, and a molding 9210b is formed in the molding space 130b. As the molding space 131b having a smaller diameter than the molding space 130b is formed, the molding 211b is formed in the molding space 131b.

As described above, according to the present invention, since the reverse catching jaw is bent in the insert injection state in which the insert plate made of a metal material such as stainless steel is inserted into the inner wall of the elastic wing of the collet, it is caught on the outer peripheral surface of the tube when connecting the tube. As the jaw penetrates, the tube tube is not easily pulled out by tightening.

In addition, since the flange of the collet has an elliptical, rectangular or rhombic shape, there is an effect that it is easy to insert and disassemble the clip.

The present invention has been described above with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and is provided to those skilled in the art without departing from the gist of the present invention. By this, various changes and modifications can be made.

Claims (9)

A preliminary step of preparing a press-formed plate having a plurality of moldings formed in a molding space at regular intervals, the molding space facing inwardly; An injection step of clinching the injection molded product of the resin up and down with respect to the molding in a state where the press prepared in the preparation process is set in the setting machine; A cutting step of cutting the cutting part with a cutting machine when a part of the molding is inserted into the injection molding through the injection process and cured; When the injection-molded product is separated from the press by the cutting machine of the cutting process, a part of the insert plate is exposed to the outside inside the elastic blade, and the flange is integrally molded in the opposite direction, so that one collet is completed. Method for producing a collet for tube tube connector. The method for manufacturing a collet for tube tube connector according to claim 1, wherein setting holes are formed at both ends and a center of the press product prepared in the preparation step. The method of claim 1, wherein the press prepared in the preparatory process is located on the horizontal line and the molded product, characterized in that the integrally molded tube tube connector. The method according to claim 1, wherein the molded article having a press prepared in the preparation step is formed of at least three to eight in the molding space, characterized in that the tube tube connector for collet manufacturing method. The method of claim 1, wherein the molding obtained in the preparation process includes an insert plate inserted into the injection molding and a support rib supporting the insert plate. 6. The method of claim 5, wherein a cutting groove for separating the insert plate from the support ribs is formed between the insert plate and the support ribs. The method according to claim 5, wherein the separation prevention jaw is formed on the inner side of the insert plate and the reverse catching jaw is formed integrally on the outside. The method according to claim 5, wherein the separation prevention jaw and the reverse catching jaw constituting the insert plate is bent upwards. The method of claim 5, wherein the distal end of the jaw jaw is a straight line or rounding method for producing a collet for a tube tube connector.

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