KR20170013646A - A manufacturing apparatus for tube coupler and tube coupler manufactured by the same that - Google Patents

A manufacturing apparatus for tube coupler and tube coupler manufactured by the same that Download PDF

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Publication number
KR20170013646A
KR20170013646A KR1020150106592A KR20150106592A KR20170013646A KR 20170013646 A KR20170013646 A KR 20170013646A KR 1020150106592 A KR1020150106592 A KR 1020150106592A KR 20150106592 A KR20150106592 A KR 20150106592A KR 20170013646 A KR20170013646 A KR 20170013646A
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KR
South Korea
Prior art keywords
high frequency
lower mold
mold
connector
vertical bar
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KR1020150106592A
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Korean (ko)
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KR101711290B1 (en
Inventor
방승호
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(주)다연정공
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Priority to KR1020150106592A priority Critical patent/KR101711290B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/14—Making machine elements fittings
    • B21K1/16—Making machine elements fittings parts of pipe or hose couplings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The connector according to the present invention comprises a connector (2) having a tube (1) at one end and an extended protrusion (4) (1) for forming a connector (2) in a tube connecting port comprising a nut member (6) coupled to an apparatus, wherein a vertical bar (9) having a constant diameter before molding of the connector (2) A lower mold 10 provided at an upper end of the receiving groove 11 and having an enlarged groove 12 whose diameter is expanded as compared with the receiving groove 11; A high frequency electric heating body 21 provided at a side of the lower mold 10 to generate heat by using a high frequency wave and an extension part 23 protruding from the side surface of the high frequency electric heating body 21 to the upper mold 10, A high frequency heating ring 23 provided at the tip of the extension 22 and having an inner diameter larger than an inner diameter of the expansion groove 12 of the lower mold 10 to heat the upper end of the vertical bar 8, (20); A pressing protrusion 31 for pressing the upper end of the vertical bar 8 through the high frequency heating ring 23 of the high frequency heater 20 is formed on the lower surface of the lower mold 10 An upper mold 30; And an elevating means (40) for elevating and lowering the upper mold (30).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube connector,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube connector molding device and a tube connector formed by the molding device, and more particularly, to a tube connector molding device connected to an end of a tube and a tube connector formed by the molding device.

Generally, a hydraulically driven machine is equipped with a hydraulic tube for fluid movement, and a tube is used for supplying lubricating oil or oil to the machine. At this time, the end of the tube is equipped with a tube connection port for connection to a mechanical device.

The tube connection port includes a connector rod having one end inserted into the tube and a flow path formed therein, and a nut fitted to the other end of the connector rod and coupled to the mechanical device. At this time, the conventional connector rod has a connecting protrusion formed with a reduced diameter to be inserted into the tube at one end of a round bar or a hexagonal bar of a predetermined length in which a minute-diameter flow path is formed, and an enlarged- And then machined on a CNC lathe.

However, since the conventional connector rod is manufactured by cutting as described above, the material is wasted and the manufacturing time is long, which lowers the productivity, increases the unit price, and lowers the price competitiveness. Particularly, in the case of a long connector rod, the body of the round bar and the extension protrusions and the engagement protrusions at both ends must be separately machined, so that the number of processes increases, resulting in a large decrease in productivity and an increase in the amount of material to be cut. In addition, there is a problem that production cost is increased due to purchase and operation of expensive equipment such as a CNC lathe.

Korean Registered Utility Model No. 20-0161850

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a tube connector forming apparatus which is excellent in cost competitiveness because productivity is improved by shortening a manufacturing time, And a tube connector formed with the tube.

According to an aspect of the present invention, there is provided a connector comprising: a connector (2) having a bar shape, a channel (3) formed along its longitudinal direction, a tube (1) coupled at one end thereof, and an extended protrusion (4) And a nut member (6) having one side engaged with the extension projecting portion (4) of the connector (2) and the other side connected to the device, wherein the connector (2) (11) extending vertically so that a vertical bar (9) having a constant diameter before molding of the container (2) is inserted uprightly and a receiving groove (11) provided at an upper end of the receiving groove (11) A lower mold 10 in which an enlarged extended groove 12 is formed; A high frequency electric heating body 21 provided at a side of the lower mold 10 to generate heat by using a high frequency wave and an extension part 23 protruding from the side surface of the high frequency electric heating body 21 to the upper mold 10, A high frequency heating ring 23 provided at the tip of the extension 22 and having an inner diameter larger than an inner diameter of the expansion groove 12 of the lower mold 10 to heat the upper end of the vertical bar 8, (20); A pressing protrusion 31 for pressing the upper end of the vertical bar 8 through the high frequency heating ring 23 of the high frequency heater 20 is formed on the lower surface of the lower mold 10 An upper mold 30; And an elevating means (40) for elevating and lowering the upper mold (30).

According to another aspect of the present invention, there is provided a device for connecting a tube (1) for supplying fluid or gas to an apparatus, the tube (1) having a rod shape and having a channel (3) formed along its longitudinal direction, (2) having first and second enlarged projecting portions (4, 5) formed at the other end and a middle portion and having one side joined to the first extended projecting portion (4) of the connector (2) And a tube connection cap (1) fixed to the connector (2) and having one end engaged with the second extension projection (5) of the connector (2) (1) for forming a first expansion projection (4) at one end of a vertical bar (9) having a constant diameter before molding of the connector (2) Molding part; And a second shaping portion for shaping a second expansion projection (5) in the middle of the vertical bar (8) formed by the first shaping portion, wherein the first shaping portion has an upper surface on which a diameter of the connector A first lower mold having a first receiving groove extending vertically so that the vertical bar is inserted upright and a first extending groove formed at an upper end of the first receiving groove and having a diameter enlarged as compared with the first receiving groove; A first high frequency heating body provided on a side of the first lower mold for generating heat by using a high frequency wave, an extension portion protruding from the side surface of the first high frequency wave heating body to the first lower mold, And a first high frequency heating ring provided at a tip of the first high frequency heating ring, the first high frequency heating ring having an inner diameter larger than an inner diameter of the first expansion groove of the first lower mold and heating the upper end of the vertical rod; A first upper mold having a first upper mold having a pressing projection protruding from an upper surface of the first lower metal mold and passing through a first high frequency heating ring of the first high frequency heater to press an upper end of the vertical rod; And a first elevating means for elevating and lowering the first upper mold. The second forming portion has vertically extending vertically extending rods (9) vertically extended on the upper surface thereof so that the vertical rods (9) An upper extending groove portion 62 provided at an upper end of the second receiving groove 61 and having a diameter larger than that of the second receiving groove 61; A second lower mold 60 provided at a lower end of the first molding part and having a lower expansion groove 63 into which the first expansion projection 4 of the vertical bar 9 formed therein is inserted; A second high frequency heating body 71 provided at a side of the second lower mold 60 to generate heat by using a high frequency and a second high frequency heating body 71 provided at a side of the second high frequency heating body 71, The second extending portion 72 is provided at the tip of the second extending portion 72 and has an inner diameter larger than an inner diameter of the upper enlarged groove portion 62 of the second lower mold 60 A second high frequency heater (70) including a second high frequency heating ring (73) for heating an intermediate portion of the vertical bar (9); And the upper end of the vertical bar 9 is inserted through the second high frequency heating ring 73 of the second high frequency heater 70. The lower end of the vertical bar 9 is inserted into the second lower metal mold 60, A second upper mold 80 having a groove 81 formed therein; And a second elevating means 90 for elevating and lowering the second upper mold 80. The depth h1 of the insertion groove 81 of the second upper mold 80 is set to be greater than the depth h1 of the second lower mold 80, Is formed to be smaller than the length h2 of the upper end of the vertical bar 9 protruding from the upper surface of the second lower mold 60 so that when the second upper mold 80 is fitted to the second lower mold 60, The middle portion of the heated vertical bar 9 is filled with the upper expanded portion 62 of the second lower mold 60 by the pressing force in the vertical direction as it is inserted into the insertion groove 81 of the upper mold 80, And the second lower mold 60 is formed with a second left lower mold 60a having an engraved molding surface 61a61b so as to form a second receiving groove 61 on one side thereof, And the second right lower mold 60b so as to be separable from each other so that the connector 2 completed through the second forming part is drawn out from the second lower mold 60. [ A molding apparatus is provided.

According to still another aspect of the present invention, the receiving groove 11 of the lower mold 10 is wrapped, or the first receiving groove of the first lower mold and the second receiving groove 61 of the second lower mold 60 A cooling jacket 51 which surrounds the cooling jacket 51 and has an inlet 52 through which the cooling water flows into the cooling jacket 51 and an outlet 53 through which cooling water is discharged from the cooling jacket 51; And a cooling means (50) including a transfer pipe (54) to which the cooling water is transferred and a cooling water supply portion (55) for supplying cooling water to the transfer pipe (54) A connector forming device is provided.

According to another aspect of the present invention, there is provided a tube connector formed by the above-described tube connector molding device.

As described above, according to the present invention, the vertical bar 9 having the flow path 3 is inserted into the lower mold 10, the upper end of the vertical bar 9 is heated by the high- The material is wasted as compared with the case in which the extension projecting portion 4 in which the nut body 6 is caught at the end portion of the vertical bar 9 is cut relatively more than the expansion projecting portion so as to form the expansion projecting portion at the end portion of the conventional vertical bar The manufacturing process and time are shortened to improve the productivity, and the expansion protrusion 4 can be formed without using expensive equipment such as a CNC lathe, so that the overall cost can be lowered, so that the price competitiveness is excellent. The upper mold 30 is moved upward and downward in the vertical direction of the lower mold 10 so that the vertical rod 9 is inserted into the receiving groove 11 of the lower mold 10, And a separate clamping means for clamping the vertical bar 9 is not required, so that the structure is simple and structurally more stable.

When forming the tube connection port of the type in which the tube 1 is fixed to the connector 2 by the connection cap 8, the first extension protrusion of the vertical bar 9 formed as described above is inserted into the lower extension groove portion A second lower mold 60 having a first receiving groove 61 in which an upper extending groove 62 is formed at an upper end thereof and a vertical bar 9 projecting from the upper surface of the second lower mold 60, The second upper mold 80 having the insertion groove 81 formed therein and the second molding section including the second high frequency heater 70 are provided so that the two spaced apart expansion projections are arranged in the same manner as the CNC lathe It is possible to precisely mold without using expensive equipments, so that the above effect is further enhanced.

On the other hand, at least the cooling jacket 51 which encloses the receiving groove 11 of the lower mold 10 or the first receiving groove of the first lower mold and the second receiving groove 61 of the second lower mold 60 Since the mold and the vertical bar can be cooled more quickly by providing the cooling means 50, a part of the vertical bar 9 which is heated and in a partially molten state is lifted up by the upper mold 30 or the second upper mold 80 It is possible to lower the defective product rate caused by clinging to the market.

FIG. 1 is a perspective view of a product molded in a first embodiment of a tube connector forming apparatus according to the present invention. FIG.
2 is a side view of the first embodiment
Figs. 3 and 4 are views showing the operation of the recessed portion of the first embodiment
Fig. 5 is a perspective view of a product molded in the second embodiment of the tube connector forming apparatus according to the present invention. Fig.
6 is a side view of the second embodiment
Figs. 7 and 8 are views showing the operation of the recessed portion of the second embodiment
9 is a view showing the separation of the second lower mold of the second embodiment

The objects, features and advantages of the present invention will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 4 are views showing a tube connector and a molding apparatus formed by a molding apparatus for a tube connector according to a first embodiment of the present invention. As shown in FIG. 1, the apparatus for forming a tube connector according to the first embodiment of the present invention has a rod shape as shown in FIG. 1, in which a channel 3 is formed along the longitudinal direction, a tube 1 is coupled to one end, And a nut member (6) having one side engaged with the extended projecting portion (4) of the connector (2) and the other side engaged with the apparatus, An upper mold 30, an elevating means 40 and a cooling means 50 as a device for molding the connector 2. The lower mold 10, the high-frequency heater 20, the upper mold 30, At this time, a plurality of coupling projections 7 in the form of a continuous projection are formed at one end of the connector 2 so as not to be missed when the tube 1 is fitted. In the connector 2, a vertical bar 9 having a constant diameter is formed by the molding apparatus.

The lower mold 10 is installed on the upper surface of the upper plate 111 of the main frame 110 composed of an upper plate 111 and a supporting portion 112 for supporting the upper plate 111. The lower mold 10 has a receiving groove 11 extending vertically so that a vertical bar 9 is inserted into the upper surface of the lower mold 10 and a receiving groove 11 formed at an upper end of the receiving groove 11, Thereby forming an enlarged groove 12. At this time, the depth of the receiving groove 11 and the extended groove 12 is formed to be smaller than the length of the vertical bar 9, so that the vertical bar 8 protrudes a predetermined length from the upper surface of the lower mold 10. The lower mold 10 is preferably formed of a cemented carbide excellent in abrasion resistance and the lower mold 10 is detachably coupled to the lower mold support 13 provided on the upper surface of the upper plate 111 of the main frame 110. [ So that it can be replaced.

The high frequency heater 20 is installed on the upper surface of the upper plate 111 of the side main frame 110 of the lower mold 10 and generates heat using high frequency waves. And an extension portion 22 provided at the tip of the extension portion 22 and having an inner diameter larger than an inner diameter of the expansion groove portion 12 of the lower mold 10, And a high-frequency heating ring (23) formed to be larger than the other and heating the upper end of the vertical bar (8). The high-frequency heater 20 uses the principle that the conductor is heated by the induction current when the conductor is arranged in the electromagnetic field formed by supplying the high-frequency current to the induction coil.

The upper mold 30 is installed on the upper mold 10 so as to be able to move up and down by the elevating means 40. A pressing protrusion 31 for pressing the upper end of the vertical bar 9 inserted into the receiving groove 11 of the lower mold 10 is formed on the lower surface of the upper mold 30. [ At this time, it is preferable that the upper mold 30 is made of a cemented carbide excellent in abrasion resistance, and the upper mold 30 is detachably coupled to the upper mold supporter 32 so that the upper mold 30 can be replaced.

The elevating means 40 includes a motor 41, a vertical screw shaft 42 having one end fixed to the motor 41 and a vertical screw shaft 42 protruding from the lower surface of the upper plate 111 of the main frame 110, A lifting guider 44 having both ends thereof connected to the motor 41 and the upper mold support 32 and penetrating the upper plate 111 of the main frame 110, . At this time, the motor 41 is attached to the motor bracket 41a, the upper mold support 32 is mounted to the upper mount 33, and both ends of the elevator guider 44 are connected to the motor bracket 41a and the upper mount 33 ).

The cooling means 50 includes a cooling jacket 51 which surrounds the receiving groove 11 of the lower mold 10 and has an inlet 52 through which cooling water flows into one side and an outlet 53 through which cooling water is discharged from the other side, A cooling water transfer pipe 54 connected to the inlet port 52 and the discharge port 53 of the cooling jacket 51 and a cooling water supply unit 55 for supplying cooling water to the cooling water transfer pipe 54 do. At this time, the cooling water supply unit 55 may be provided with a pump 56 for supplying cooling water to the transfer pipe 54. The cooling jacket 51 may be formed inside the lower mold 10, The mold is provided outside the lower mold 10.

A process of forming a tube connector using the tube connector forming apparatus according to the first embodiment of the present invention will now be described.

First, the upper end of the vertical bar 9 is heated by the high-frequency heating ring 23 when the vertical bar 9 is inserted into the receiving groove 11 of the lower mold 10 and the high-frequency heater 20 is operated. When the upper mold 30 is lowered by the elevating means 40, the pressing projection 31 of the upper mold 30 presses the upper end of the vertical bar 9. [ As a result, the upper end of the vertical bar 9, which is heated and partially melted, is filled in the extended groove 12. The molded product is taken out by a drawing means such as an unillustrated spring or air provided on the lower mold support 13. [ On the other hand, after the engaging projection 8 is inserted into one end of the drawn molded product, the connector 2 is completed.

At this time, the upper mold 30 and the lower mold 10 may be vertically arranged so that the upper mold 30 and the lower mold 10 are horizontally moved to the lower mold 10. In this case, The vertical rods 9 inserted into the receiving grooves 11 of the vertical rods 9 and 10 may be separated from the receiving grooves 11 when the length of the vertical rods 9 is longer, The upper mold 30 is structured so as to be vertically moved up and down from the upper chamber of the lower mold 10 as in the present invention so that it is structurally stable and requires no separate clamping for fixing the vertical rods 9 The structure is simplified.

FIGS. 5 to 9 show a tube connector and a molding apparatus formed by a tube connector molding apparatus according to a second embodiment of the present invention. First, as shown in the drawing, the connector 2 molded by the tube connector molding device of the second embodiment has a second expansion projection 5 in addition to the first expansion projection 4 formed at one end thereof. And the connection cap 8 whose one end is restricted by the second extension projection 5 presses the tube 1 and fixes the tube 1 to the connector 2. [

As shown in the drawing, the tube connector forming apparatus according to the second embodiment of the present invention comprises a first forming part for forming a first expansion projection part 4 at one end of a vertical bar 9, And a second shaping portion for shaping the second enlarged projecting portion 5 in the middle portion of the vertical bar 9. At this time, the first forming unit is the same as the molding apparatus of the first embodiment, except that the first molding unit is distinguished from the constituent elements of the second molding unit by attaching a first character to the front of the component name. Therefore, the first forming portion is replaced with the description of the first embodiment, and only the second forming portion will be described below.

The second forming unit includes a second lower mold 60, a second high frequency heater 70, a second upper mold 80, a second elevating unit 90, and a cooling unit 50.

The second lower mold 60 is also installed on the upper surface of the upper plate 111 of the main frame 110. On the upper surface of the upper mold 111, An upper extending groove portion 62 provided at an upper end of the second receiving groove 61 and having a diameter larger than that of the second receiving groove 61; And a lower extended groove portion 63 is formed at the lower end of the vertical bar 9 and is inserted into the first extended portion 4 of the vertical bar 9 formed in the first formed portion.

The second lower mold 60 includes a second left lower mold 60a and a second right lower mold 60b and the second left lower mold 60a and the second right lower mold 60b comprise a first left lower mold 60a and a second right lower mold 60b. The engraved molding surfaces 61a and 61b are formed so as to be matched with each other on the matched surface to form the second accommodating groove 61, the upper enlarged groove 62 and the lower enlarged groove 63. The second left lower mold 60a and the second right lower mold 60b are preferably made of a cemented carbide excellent in abrasion resistance and the second left lower mold 60a and the second right lower mold 60b are made of cemented carbide And is detachably coupled to the second lower mold supporting members 64a and 64b provided on the upper surface of the upper plate 111 of the frame 110 to be replaceable. Needless to say, the second lower mold supporting members 64a and 64b are also separable from each other.

The second left lower mold 60a and the second right lower mold 60b are separated by the mold separating means 100 so that the engraved molding surfaces 61a and 61b are exposed. The mold separating means 100 includes a pair of base plates 101 on the upper surface of which the second left lower mold 60a and the second right lower mold 60b are respectively mounted, The transfer cylinder 102 may transfer the second left lower mold 60a and the second right lower mold 60b directly to the transfer cylinder 102. However, .

The second high frequency heater 70 is provided on the side of the second lower mold 50 and generates heat by using a high frequency. The second high frequency heater 71 is disposed on the side of the second high frequency heater 71, An extension portion 72 protruding from the side surface of the second lower mold 60 to the upper side of the second lower mold 60 and an inner portion extending from the upper end of the upper extension groove portion 61 of the second lower mold 60 And a second high frequency heating ring (73) formed to be larger than the inner diameter and heating the intermediate portion of the vertical bar (9).

The second upper mold 80 is installed so as to be able to move up and down by the second lifting means 90 in the upper right room of the second lower mold 60. An insertion groove 81 into which the upper end of the vertical bar 9 inserted in the second receiving groove 61 of the second lower mold 60 is inserted is formed on the lower surface of the second upper mold 80. [ The depth h1 of the insertion groove 81 is smaller than the length h2 of the upper end of the vertical bar 9 protruding from the upper surface of the second lower mold 60. The second upper mold 80 is preferably made of a cemented carbide excellent in abrasion resistance. The second upper mold 80 is detachably coupled to the second upper mold supporter 82 so that the second upper mold 80 can be replaced.

The second elevating means 90 includes a second motor 91 and a second vertical screw shaft 92 having one end fixed to the second motor 91 and an upper plate 111 of the main frame 110, A second screw gear 93 protruding from the lower surface of the main shaft 91 and having a second vertical screw shaft 92 rotatably coupled thereto, And a second lifting guider 94 passing through the upper plate 111 of the first lifting guider. At this time, the second motor 91 is mounted on the second motor bracket 91a and mounted on the second upper mounting stand 83 of the second upper mold supporting body 82, 2 motor bracket 91a and the second upper mounting 83.

The cooling means 50 is constituted by a cooling jacket 51 in which an inlet port 52 and an outlet port 53 are formed, a transfer pipe 54 and a cooling water supply portion 55 as described in the first embodiment, To supply the cooling water. However, since the second lower mold 60 is divided into the second left lower mold 60a and the second right lower mold 60b in the present embodiment, the cooling jacket 50 is formed by the second left lower mold 60a A left cooling jacket 51a surrounding the engraved molding surface 61a of the second right lower mold 60b and a right cooling jacket 51b surrounding the engraved molding surface 61b of the second right lower mold 60b. The cooling jacket 51 may be formed inside the second lower mold 60. However, the cooling jacket 51 is provided outside the second lower mold 60 in the illustrated embodiment.

The operation of the second embodiment of the present invention will now be described. First, a vertical workpiece 9 having a first work piece, that is, a first extension portion 4 formed at an end thereof, 1 expansion projecting portion 4 is inserted into the second lower mold 60 so as to be inserted into the lower extended groove portion 63. When the second high frequency heater 70 is operated, the middle portion of the vertical bar 9 is heated. When the second upper mold 80 is lowered by the second lifting means 90, the upper portion of the vertical bar 9 protruding from the upper surface of the second lower mold 60 is inserted into the insertion groove of the second upper mold 80 81). Since the depth h1 of the insertion groove 81 of the second upper mold 80 is smaller than the length h2 of the vertical bar 9 projecting to the upper surface of the second lower mold 60, Is heated while being pressurized so that the middle portion of the vertical bar 9 in a partially molten state is filled in the upper extension 62 of the second receiving groove 61 of the second lower mold 60.

Then, when the second left lower mold 60a and the second right lower mold 60b are separated from each other by the mold separating means 100, the second work piece provided in the second receiving groove 61 can be taken out have. Then, the connector 2 is completed when the engaging projection 8 is inserted into the secondary workpiece, and the connector 2 can be folded into a translator shape as shown in FIG.

In the above embodiments, the high-frequency heater 20, the second high-frequency heater 70, the elevating means 40, the second elevating means 90 and the mold separating means 100 are controlled by an unillustrated control means Lt; / RTI > At this time, the temperature and the heating time of the high-frequency heater 20 and the second high-frequency heater 70 can also be controlled.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

2: Connector 9:
10: lower mold 20: high frequency heating
30: upper mold 40: elevating means
50: cooling means 60: second lower mold
70: second high frequency heater 80: second upper mold
90: second elevating means 100: mold separating means

Claims (4)

A connector (2) having a rod (3) formed therein and having a channel (3) formed along its longitudinal direction, a tube (1) connected at one end thereof and an extended protrusion (4) And a nut body (6) which is engaged with the extension portion (4) of the connector (2) and whose other end is coupled to the device, wherein the connector (2)
And a receiving groove 11 extending upward and downward to vertically insert the vertical bar 9 having a constant diameter before the forming of the connector 2 on the upper surface thereof and a receiving groove 11 provided on the upper end of the receiving groove 11, A lower mold 10 having an expanded groove 12 having a diameter enlarged as compared with the lower mold 10;
A high frequency electric heating body 21 provided at a side of the lower mold 10 to generate heat by using a high frequency wave and an extension part 23 protruding from the side surface of the high frequency electric heating body 21 to the upper mold 10, A high frequency heating ring 23 provided at the tip of the extension 22 and having an inner diameter larger than an inner diameter of the expansion groove 12 of the lower mold 10 to heat the upper end of the vertical bar 8, (20);
A pressing protrusion 31 for pressing the upper end of the vertical bar 8 through the high frequency heating ring 23 of the high frequency heater 20 is formed on the lower surface of the lower mold 10 An upper mold 30; And
And an elevating means (40) for elevating and lowering the upper mold (30). A tube (1) for supplying fluid or gas to a device is connected to the device. The tube (1) is formed in a rod shape and has a channel (3) formed along its longitudinal direction, A connector 2 having a first extension protrusion 4 and a second extension protrusion 4 and having a diameter enlarged on one side of the connector 2; In a tube connector having a nut body 6 and a tube connection cap 7 which fixes the tube 1 to the connector 2 and has one end engaged with the second extension projection 5 of the connector 2, An apparatus for molding the connector (2)
A first shaping part for shaping the first extension part 4 at one end of the vertical bar 9 having a constant diameter before the molding of the connector 2; And a second forming part for forming a second expansion projection part (5) in the middle of the vertical bar (8) formed by the first forming part,
Wherein the first shaping portion comprises:
A first receiving groove formed on an upper surface of the first receiving groove and extending upward and downward so that a vertical bar having a predetermined diameter before the connector is erected uprightly; a first receiving groove provided on an upper end of the first receiving groove, A first lower mold having a portion formed therein;
A first high frequency heating body provided on a side of the first lower mold for generating heat by using a high frequency wave, an extension part protruding from the side surface of the first high frequency wave heating body to the first lower mold, And a first high frequency heating ring provided at a tip of the first high frequency heating ring, the first high frequency heating ring having an inner diameter larger than an inner diameter of the first expansion groove of the first lower mold and heating the upper end of the vertical rod;
A first upper mold having a first upper mold having a pressing projection protruding from an upper surface of the first lower metal mold and passing through a first high frequency heating ring of the first high frequency heater to press an upper end of the vertical rod; And
And first elevating means for elevating and lowering the first upper mold,
And the second shaping portion,
A second receiving groove 61 extending upward and downward so that the vertical bar 9 processed by the first forming unit is inserted upright on the upper surface of the second receiving groove 61, An upper expansion groove portion 62 having a diameter larger than that of the first expansion groove 61 and a first expansion projection portion 4 of a vertical bar 9 provided at a lower end portion of the second accommodation groove 61, A second lower mold 60 having a lower extension groove portion 63 to be inserted therein;
A second high frequency heating body 71 provided at a side of the second lower mold 60 to generate heat by using a high frequency and a second high frequency heating body 71 provided at a side of the second high frequency heating body 71, The second extending portion 72 is provided at the tip of the second extending portion 72 and has an inner diameter larger than an inner diameter of the upper enlarged groove portion 62 of the second lower mold 60 A second high frequency heater (70) including a second high frequency heating ring (73) for heating an intermediate portion of the vertical bar (9);
And the upper end of the vertical bar 9 is inserted through the second high frequency heating ring 73 of the second high frequency heater 70. The lower end of the vertical bar 9 is inserted into the second lower metal mold 60, A second upper mold 80 having a groove 81 formed therein; And
And second elevating means (90) for elevating and lowering the second upper mold (80)
The depth h1 of the insertion groove 81 of the second upper mold 80 is formed to be smaller than the length h2 of the upper end of the vertical bar 9 protruding from the upper surface of the second lower mold 60, The vertical bar 9 is inserted into the insertion groove 81 of the second upper mold 80 when the metal mold 80 is fitted to the second lower metal mold 60, 9 is filled with the upper enlarged portion 62 of the second lower mold 60 to form the second extending projection 5,
The second lower mold 60 has a second left lower mold 60a and a second right lower mold 60b having respective engraved molding surfaces 61a61b aligned with one another to form a second receiving groove 61 Wherein the connector is formed so as to be separable from the second lower mold so that the completed connector is pulled out from the second lower mold. The method according to any one of claims 1 to 4, further comprising the steps of: wrapping the receiving groove (11) of the lower mold (10) or attaching the first receiving groove of the first lower mold and the second receiving groove A cooling jacket 51 which surrounds the cooling jacket 51 and has an inlet 52 through which cooling water flows into the cooling jacket 51 and an outlet 53 through which cooling water is discharged from the cooling jacket 51, And a cooling means (50) including a transfer pipe (54) for transferring the cooling water and a cooling water supply portion (55) for supplying cooling water to the transfer pipe (54), respectively, Tube connector forming device. A tube connector formed by the tube connector forming apparatus according to any one of claims 1 to 3.
KR1020150106592A 2015-07-28 2015-07-28 A manufacturing apparatus for tube coupler and tube coupler manufactured by the same that KR101711290B1 (en)

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KR102015390B1 (en) 2017-12-07 2019-08-28 신국수 Tube Stopper Forming Apparatus Having The Same
KR102631575B1 (en) * 2023-05-18 2024-01-31 이희태 Automatic nut combining device for firefighting flexible pipe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200161850Y1 (en) 1996-12-27 1999-12-01 정몽규 One touch type connector for connecting pneumatic pressing tube
KR200198059Y1 (en) * 2000-04-21 2000-10-02 박월자 A fitting for high presure hose
JP2002263772A (en) * 2001-03-08 2002-09-17 Yamashina Corp Headed parts manufactured by heading machine with built-in heating means
KR20080112089A (en) * 2007-06-20 2008-12-24 가부시키가이샤 히다치 산키시스템 Molding die and control method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200161850Y1 (en) 1996-12-27 1999-12-01 정몽규 One touch type connector for connecting pneumatic pressing tube
KR200198059Y1 (en) * 2000-04-21 2000-10-02 박월자 A fitting for high presure hose
JP2002263772A (en) * 2001-03-08 2002-09-17 Yamashina Corp Headed parts manufactured by heading machine with built-in heating means
KR20080112089A (en) * 2007-06-20 2008-12-24 가부시키가이샤 히다치 산키시스템 Molding die and control method thereof

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