KR200483116Y1 - Pipe foming apparatus for Height adjustment - Google Patents

Abstract

The present invention relates to a tube forming apparatus, and more particularly, to manufacturing a tapered support tube, in which the upper portion is narrowed by a single device, the lower portion is formed into a shape of narrow cross- The lower end allows the bending and expanding work to be performed outwardly, thereby enhancing the workability, while preventing a large number of workers and equipment from being input, thereby affording economical reduction and deterioration. In particular, To a tube forming apparatus for a height adjuster.

Description

[0001] DESCRIPTION [0002] Pipe foming apparatus for Height adjustment [

The present invention relates to a tube forming apparatus, and more particularly, to a tapered tube having a narrow upper portion and a narrow bottomed lower light shape, an upper tapered inner portion and a lower tapered outer portion, And more particularly, to a tube forming apparatus for a height adjuster for enabling a single apparatus to be formed without using a plurality of equipments.

Generally, a furniture such as a bed or a sink has a leg for supporting the furniture to a certain height from the ground while supporting it on the ground.

On the other hand, when the legs are formed in the nearer legs, the height of the feet can be adjusted by adjusting the height of the legs so that the height of the legs can be adjusted according to the user's demands.

In such a general height regulating section, a supporting tube having a large upper portion and a narrow upper portion is formed, and an adjusting tube is inserted into the inside of the supporting tube.

At this time, the supporting tube is formed with an expanded portion bent at an upper end thereof to be widened to the outside, and a reduced portion is formed at the lower end of the supporting tube, and a supporting plate having a threaded bar protruding inward of the supporting tube is welded to the expanded portion .

Further, the adjusting tube is formed with an expanding portion so as to be hooked on the reduced portion at the upper end, and a nut member which is inserted into the screw rod is provided in the expanding portion.

That is, in the height regulating part, the height of the supporting pipe can be adjusted by rotating the adjusting pipe inserted in the screw thread of the supporting pipe.

Meanwhile, in order to manufacture the support pipe constructed as described above, the cylindrical tube body having the upper part and the lower part is first formed into a tapered shape, and one end thereof is formed by forming.

However, in the conventional manufacturing process of the support pipe, it is required to perform molding using a plurality of apparatuses, and therefore, it is difficult to work. Therefore, an economical burden such as the input of a large number of workers and equipment must be provided There is a problem that the productivity is remarkably deteriorated.

Korean Utility Model Registration No. 20-0340920.

The present invention has been devised to solve the above-mentioned problems. In manufacturing a tapered support tube, a single device is used to form a narrow upper part, It is possible to increase the workability and to prevent the input of a large number of workers and equipments, thereby making it possible to economically reduce or eliminate the inconvenience. In particular, The present invention has been made to solve the above-mentioned problems occurring in the prior art.

As a specific means for accomplishing the above object, there is provided a cutting tool comprising: a body having an upper portion formed with a press tool capable of elevating up and down, and a lower portion formed with a lower die on which a workpiece is mounted;

A work table mounted on the lower die against the pressing tool;

The upper part is narrower and the lower part is gradually widened, and a tube to be formed is tapered so that the tube to be molded is mounted. A shaping tool unit having a ring-shaped shaping tool support through which the lower end passes and which surrounds the lower end of the shaping tool, and a shaping tool urging member for interrupting the downward departure of the shaping tool;

A reduction forming mold coupled to an end of the narrow diameter portion of the tube formed in a vertically downward beam shape and reducing the end portion to be compressed inward when pressed by a pressing tool; And

And a widening mold joined to the end of the wide diameter portion of the tube formed in the shape of a vertically lowered light and enlarged so as to spread out the end portion when pressed by the pressing tool outwardly.

As described above, the tube-shaping apparatus for a height-adjuster according to the present invention can be manufactured by a press work, and it is possible to perform external shaping using a shaping tool tapered to have the same inner diameter as a support tube to be formed, And a widening mold that is mounted on an end portion having a large diameter to perform an expansion molding can be used, so that a single press apparatus can taper the cylindrical tube and reduce and expand both ends The number of workers and equipment is not required, resulting in an economical reduction. In particular, the productivity is increased and the product unit price can be lowered.

1 is an overall view of a tube forming apparatus for the present invention height adjusting mechanism.
Fig. 2 is a view of the work table of the tube forming apparatus for the present invention height adjusting mechanism.
3 is a schematic view of a molding tool unit of the tube-shaping apparatus for the present invention height adjusting mechanism.
Fig. 4 is a schematic view of the shrinking mold of the tube-shaping apparatus for the present invention.
Fig. 5 is a schematic view of an expanding mold of a tube forming apparatus for the present invention. Fig.
Fig. 6 is a state in which a molding tool unit is installed in the tube-shaping apparatus for the present invention height adjuster.
7 is a view showing a pipe fitting state of the pipe forming apparatus for the present invention height adjuster.
Fig. 8 is a view showing the tube-shaped forming state of the tube-shaping apparatus for the present invention height adjuster.
Fig. 9 is a view showing a state of pipe separation of the tube-shaping apparatus for the present invention height adjuster.
Fig. 10 is a view showing a state ready for end molding of the tube-shaping apparatus for the present invention height adjuster. Fig.
Fig. 11 is an end view of the tube forming apparatus for the present height adjusting mechanism. Fig.
12 is a cross-sectional view of a tube formed by a tube-forming apparatus for the present invention height adjuster.
13 is a view showing the state of use of the tube formed by the tube-shaping apparatus for the present invention height adjuster.

The terms or words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may properly define the concept of the term to describe its own design in the best possible way It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It should be understood that various equivalents and modifications may be present.

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

1 is an overall view of a tube-shaping apparatus for the present invention height adjuster.

1, the tube-shaping apparatus 1 for a height-adjusting apparatus according to the present invention includes a body 100, a work table 200, a forming tool unit 300, a reduction forming mold 400, (500).

Here, the body 100 is constituted by a normal press, and the upper portion thereof is formed with a pressing tool 110 which is vertically movable up and down by a normal cylinder operation.

The body 100 also has a lower die 120 on which a workpiece made of an upper and a lower through-tube body is mounted at a position opposing the pressing tool 110.

The work table 200 is configured to perform a work of a tube to be formed (not shown), and is configured to be mounted on an upper portion of the lower die 120.

At this time, referring to FIG. 2, the work table 200 is formed with a support plate 210 having a leg 211 at the lower portion thereof.

A pair of mounting plates 220 and 220 'on both sides of the support plate 210 are formed on the work table 200. The mounting plates 220 and 220' So as to form a step with the support plate 210, and the molding tool support 320 is mounted on the upper part.

At this time, the spacing space between the two side mounting plates 220 and 220 'constitutes a forming tool seating groove 221 in which the following forming tool 310 can be seated.

The work table 200 is formed with a shovel removing fingerboard 230 which is inserted into the forming tool receiving groove 221 and is capable of selectively supporting the shaping tool 310. The shovel- The front and rear attachments can be inserted and removed.

That is, when inserting into the molding tool receiving groove 221, the insertion and removal board 230 can fill the molding tool receiving groove 221 to support the forming tool 310, So as to be seated in the forming tool seating groove 221.

The work table 200 is also provided with a plurality of support members 240 and 240 'for supporting the periphery of the shaping tool support 320 and preventing the molding tool support 320 from flowing, 240 and 240 'protrude from the upper rear of the support plate 210 and are protruded from the upper portions of the both-side support plates 220 and 220' The supporting members 240 and 240 'are configured to support the periphery of the forming tool support 320 mounted on the mounting plates 220 and 220' from all directions .

The forming tool unit 300 is configured to be capable of forming an outer shape of a tube to be formed into a tapered tube having a narrow upper portion and gradually widening toward the lower portion.

Referring to FIG. 3, the forming tool unit 300 includes a forming tool 310 in which a tube to be formed is inserted and held. At this time, the forming tool 310 has a narrow upper portion and a smaller upper portion It is composed of tapered blocks in the form of a lower light.

The shaping tool unit 320 is also formed with a shaping tool support 320 to support the shaping tool 310. The shaping tool support 320 includes a central through-type "ring" And the lower end of the forming tool 310 is configured to be penetrated.

In addition, the forming tool unit 300 is formed with a pressing member 330, and the pressing member 330 is not limited and may be formed into various shapes.

The reduction forming mold 400 is configured to reduce and mold the end portion corresponding to the narrow diameter portion of the tube formed in the shape of a vertically lowered light through the forming tool unit 300 so as to bend inward while curving the curved portion .

At this time, referring to FIG. 4, the shrink-reducing mold 400 is constructed such that a lower portion thereof is closed and an upper portion thereof is opened to accommodate the pipe.

A tube supporting protrusion 420 inserted into the tube to be molded at a position spaced apart from the inner circumferential surface of the tube 410 protrudes from the inner center of the tube 410 to support the tube.

At this time, the spacing space between the receiving tube 410 and the tube supporting protrusion 420 allows the tube to enter the tube through the tube entry groove 430.

The curvature of the reduction guide surface 421 is formed at a lower end of the inner circumferential surface of the receiving tube 410. The curved guide surface 421 has a curvature The curvature of the tube.

The expandable mold 500 is configured to expand and contract so as to bend outwardly while curving the end portion corresponding to the wide diameter portion of the pipe formed in the shape of a collimated light through the forming tool unit 300 .

5, a support block 510 is formed in the shape of a circular plate. At this time, the support block 510 is configured to have a larger diameter than the wide diameter portion of the tube to be molded do.

In addition, a tube supporting protrusion 520 inserted into the tube to be molded and supporting the tube is protruded at the upper center of the support block 510.

At the lower end of the outer periphery of the tube supporting protrusion 520, a curved guide surface 521 curved to extend from the upper surface of the support block 510 is formed. At this time, Of the tube.

The dimensions of the work table 200, the forming tool unit 300, the reduction forming mold 400, and the widening mold 500 may be different according to the specifications of the tube to be formed. Of course.

Hereinafter, the operation of the tube-shaping apparatus for a height-adjuster according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3, a molding tool unit 300 is mounted on a work table 200 as shown in FIG. 6 in order to form a tube for a height adjusting tool using the tube height- .

At this time, in the forming tool unit 300, the molding tool support 320 is first mounted on the pair of mounting plates 220 and 220 'on both sides, and the molding tool support 320, Is supported by the plurality of support members 240 and 240 'to prevent the flow thereof.

The molding tool 310 is mounted on the molding tool support 320 so that the lower end of the molding tool 310 is inserted into and supported by the molding tool holder 320 through which the molding tool 310 is inserted.

At this time, the insertion tool holding plate 230 is inserted into the molding tool insertion groove 221 of the work table 200, and the forming tool 310 is placed on the upper portion of the insertion tool holding plate 230 do.

Then, the tube 10 to be molded is mounted on the lower portion of the tube 10 with a narrow diameter of the forming tool 310 inserted into the tube.

Thereafter, the pressing tool 110 of the body 100 is operated to perform molding, which is performed by lowering the pressing tool 110 by a cylinder operation as in a normal press operation. As shown in FIG. 8, The tube 10 to which the load is applied descends downward and at the same time the forming tool 310 enters the inside of the tube 10 so that the inside diameter of the tube 10 becomes equal to the outside diameter of the forming tool 310 It is possible to form the outer shape by narrow and narrow shape of the lower side.

Thereafter, the molded tube 10 is separated from the molding tool 310 because the molded tube 10 is in a forced fit state with the molding tool 310, 9, the insertion / removal fingerboard 230 is detached from the molding tool receiving groove 221 to place the molding tool receiving groove 221 in a space form, And the pressing member 330 is placed on the top.

The pressing tool 110 then presses the pressing member 330 so that the pressing member 330 presses the upper portion of the forming tool 310 and presses the forming tool 310 310 are pushed into the molding tool seating groove 221 and separated from the pipe 10.

At this time, the lower end of the tube 10 formed in the process of pushing the forming tool 310 downward is supported on the upper surface of the forming tool support 320, .

Thus, the shape of the initial cylindrical tube 10 can be formed into a shape of a vertically downward beam, which is narrower in the upper part and wider in the lower part as in the shape of the forming tool 310.

Thereafter, both ends of the tube 10 molded as described above are formed. In the molding, narrowing and bending of the narrow diameter portion are performed, and widening and bending of the wide diameter portion are performed .

In detail,

10, a widening mold 500 is mounted on the upper part of the mounting plates 220 and 220 'instead of the forming tool 310. The widening mold 500 has a tube supporting protrusion 520 You can mount it face up.

Thereafter, the molded tube 10 is mounted, and the tube 10 may be mounted by covering the tube supporting protrusion 520 with a large diameter downward.

Thereafter, the reduction forming mold 400 is installed so that the reduced diameter portion of the pipe 10 enters the pipe entry groove 430 while the pipe supporting protrusion 420 is turned upside down So that the tube supporting protrusion 420 is inserted into the upper portion of the tube 10.

11, the pressing tool 110 is lowered to press the reduction forming mold 400, so that a load acts on the pipe 10 at the upper part thereof, The upper end of the tube is formed into a shape which is inwardly folded along the curvature of the reduction guide surface 421 of the reduction forming mold 400, .

12, the upper end of the tube 10 has a narrow diameter portion which is curved inwardly while forming a curved curvature, And the lower end of the enlarged diameter portion has a curved curvature and forms an expanded tube portion 12 that is expanded and expanded to the outside.

The tube 10 constructed as described above can be used as a height adjuster for legs of furniture such as a common sink or a bed. For this purpose, And a control plate 30 having a nut member 31 at the upper end is welded to the nut member 31. The nut member 31 is formed by welding a support plate 20 having a screw rod 21 to the tube portion 12, ) To the threaded rod (21).

Accordingly, when the adjustment tube 30 is rotated, the height of the nut body 31 can be adjusted by the force of the nut 21 with the screw.

As described above, the tube-shaping apparatus for the elevation controller of the present invention is capable of tapering a tube by using a single apparatus without the need of a large number of apparatuses and manpower, and reducing or expanding the end of the tube, But also economical savings.

100: body 110: pressing tool
120: Lower die
200: worktable 210: support plate
220,220 ': Mounting plate 230:
240,240 ': Support member
300: forming tool unit 310: forming tool
320: forming tool support member 330: pressing member
400: reduction mold 410:
420: tube supporting protrusion 421: reduction guide surface
430: Home entrance
500: Expansive mold 510: Support block
520: tube supporting protrusion 521:

Claims (4)

A body 100 having a lower die 120 on which a workpiece made of a tubular body passing through the upper and the lower is mounted;
A work table (200) mounted on the lower die (120) against the pressing tool (110);
A shaping tool 310 for forming a tapered shape having a narrow upper portion and a gradually increasing tapered portion toward the lower portion and for forming a tube to be formed with a pressurized tool 110, A molding tool holder 320 in the form of a ring that penetrates the lower end of the molding tool 310 and surrounds the lower end of the molding tool 310 and a molding tool presser 320 that interrupts the downward departure of the molding tool 310, A forming tool unit 300 of a member 330;
A reduction forming mold 400 that is coupled to the narrow diameter end of the tube formed in the shape of a downward beam and reduces the diameter of the end portion to be compressed inward when pressed by the pressing tool 110; And
A widening mold 500 coupled to a wide diameter end of the tube formed in a vertically downward beam shape and expanding outwardly when the pressure is applied to the pressing tool 110;
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The work table (200)
A support plate 210 having a leg 211 at a lower portion thereof;
A pair of mounting plates 220 and 220 'formed on both sides of the upper center of the support plate 210 and forming a molding tool receiving groove 221 at the center thereof and having a molding tool support 320 mounted thereon;
A shovel and hold plate 230 which is inserted into the forming tool receiving groove 221 to support the forming tool 310, and which is slidably inserted into and removed from the forming tool 310; And
The upper portion of the support plate 210 and the upper portions of the both side mounting plates 220 and 220 'and the upper portions of the both side mounting plates 220 and 220' And a plurality of support members 240 and 240 '
The shrink-molding mold 400 includes:
A tube supporting protrusion 420 for supporting the inside of the tube is protruded and formed at an inner center of the upper open receiving tube 410 so that a tube entry groove 430 is formed between the inner circumferential surface of the receiving tube 410 and the tube supporting protrusion 420, Respectively,
The lower end of the inner circumferential surface of the receiving tube 410 is formed with a reduced guide surface 421 having a curved shape to extend from the bottom surface of the tube entry groove 430,
The curvature of the reduction guide surface 421 is a curvature of curvature of the tube to be formed,
The widening mold 500 has,
A support block 510 having a diameter larger than the wide diameter portion of the tube to be molded and having a tube supporting protrusion 520 inserted into the tube at the center of the upper portion to support the tube to be molded;
The tube supporting protrusion 520 is provided at the lower outer circumference and has a curved guide surface 521 which is curved so as to extend to the upper surface of the supporting block 510;
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Wherein the curvature of the diverging guide surface (521) forms an expanding curvature of the tube to be formed.
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