KR20180033965A - Press mold having molding structure of 2 type press-molded article - Google Patents

Abstract

The present invention relates to a press mold having a common molding structure of a type II press-molded article. More specifically, the present invention relates to the press mold, which performs molding work about a first common molded article by allowing a molding plate to be sequentially subjected to a common press-forming process while being sequentially moved per each step. Then, the present invention can selectively process a portion of the first common molded article to produce a type II press-molded article of which a shape is different using the press mold.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a press mold having a common molding structure of a 2-type press-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press mold having a common forming structure of a two-piece press-molded product, and more particularly, to a press mold having a common molding structure of a two- To a press mold having a common forming structure of a two-piece press-molded product.

Generally, various kinds of levers such as a lock lever, a release lever, and an inside handle lever, which are formed by pressing a forming plate made of a steel plate, are assembled to a door lock apparatus for an automobile. And is formed through a progressive press apparatus which performs press processing step by step.

Although the lever has a common standard including the shape and dimensions as a whole, there are partially molded parts having different shapes. Typically, the inside handle lever is provided with an override specification installed on the driver's seat, .

The two types of inside handle levers have the same overall size but their specifications are determined by the shape of the action end. Conventionally, two kinds of inside handle levers are manufactured separately from each other through an independent progressive press device, And two kinds of inside handle levers are manufactured by exchanging press molds having corresponding shapes in the elevating base.

Particularly, in the progressive press apparatus, since the lifting and lowering molds of the respective press dies are raised and lowered at one time by the lifting base, the lifting dies constituting one of the press dies can not be independently lowered.

Therefore, in the art, in forming a molded article by stepwise shaping a molded plate through a progressive press apparatus or a transfer press apparatus, two kinds of molded articles having different partial shapes can be continuously manufactured It is required to develop and spread a press mold capable of forming a press mold and a press apparatus including the same.

KR 10-0586398 B1 KR 10-0894267 B1

An object of the present invention, which is devised in view of the above-mentioned needs, is to form a common primary molded product by stepwise common press working of a molded plate while sequentially moving the molded plate in each step,

There is provided a press mold having a common molding structure of a 2-type press-molded article in which partial molding of the above-mentioned common molded primary molded product is selectively performed so that 2-type press molded articles having different shapes can be commonly produced through a press mold have.

The above object is achieved by the following constitutions provided in the present invention.

The press mold having the common forming structure of the two-piece press-molded article according to the present invention,

A press mold having a lower mold fixed on a base and a upper mold fixed on a lifting base and disposed on a movement path of a forming plate and moving up along a moving path and seated on a lower mold, As a result,

Wherein the upper mold comprises a molded core and a molded core portion including a hoistway for mounting the molded core in a lifting structure;

A support setting portion for supporting the support end of the forming core and projecting the forming end of the forming core is formed on the upper working surface,

Wherein when the support setting portion supports the molded core supporting end and the molded end of the molded core protrudes on the machined surface of the upper mold, partial molding of the molded plate seated on the lower mold is performed by the molded core,

And when the support of the forming core supporting end is released by the support setting portion, the forming plate seated on the lowering type core by the lifting core is unformed.

Preferably, the support setting portion includes: a forward / backward path communicating with an upper portion of a hoistway formed in the upper mold; And a slider that is installed in the advance and return passage in a retracted configuration and supports the support end of a forming core provided in the hoistway so that the support state of the formed core is set by forward and backward movement of the slider.

More preferably, the slider is provided with a release section upwardly recessed and a support section protruding downward. When the slider moves to one side and the support end of the molding core enters the release section, And when the slider moves to the other side, the support end of the molded core is supported in the support section of the slider.

A supporting spring for upwardly biasing the forming core is disposed in the hoistway provided with the forming core in an up-and-down structure. When the supporting state of the forming core is released by the slider, And is lifted up along the hoistway by force to be housed in the upper mold.

Meanwhile, in the progressive press apparatus according to the present invention,

And a plurality of press dies disposed on a movement path of the forming plate and configured to sequentially press the forming plates moving along the moving path, wherein at least one of the press dies includes: , And a press mold having a common molding structure of a 2-type press-molded product.

As described above, according to the present invention, in the realization of a press mold that is lifted and lowered at a time by the lifting base, it is possible to provide a pressing die which is capable of changing the supporting state of a forming core constituting the upper die constituting the press die, By adding the setting unit, the press molding by the molding core is selectively implemented.

Particularly, in the present invention, the press mold according to the present invention is a process in which a plurality of press dies are arranged on the movement path of a forming plate, and the forming plate is stepwise moved along the moving path, And is disposed in a press apparatus.

Therefore, common press dies are disposed in the first half of the movement path of the forming plate by the press die according to the present invention to form a common primary molded product. Then, Shaped press molded articles are commonly used to mold.

Thus, according to the present invention, it is possible to manufacture two types of press-formed articles having different processing regions through a single progressive press apparatus, and as a result, the two types of press-formed articles are fixed to the fixed base and the elevating base The two press moldings can be successively produced through the single progressive press apparatus through the change of the support state of the up / down core without the hassle of replacing or removing the press mold.

Fig. 1 and Fig. 2 show the overall structure of a progressive press apparatus provided with a press mold having a common forming structure of a 2-type press-formed article, which is proposed in the preferred embodiment of the present invention,
Fig. 3 shows the overall configuration of a press mold having a common forming structure of a 2-type press-formed article proposed as a preferred embodiment of the present invention,
Fig. 3 shows a detailed configuration of a top mold having a molding core portion, a support setting portion, and a stopper portion in a press mold having a common molding structure of a 2-type press molded product proposed as a preferred embodiment of the present invention,
FIGS. 4 and 5 show the state of support of the molded core portion through the support setting portion in the press mold having the common molding structure of the two-piece press-molded product proposed in the preferred embodiment of the present invention,
Figs. 6 and 7 show a molding process of a mold-release molded article by a press mold having a common molding structure of a 2-type press-molded article proposed as a preferred embodiment of the invention,
Figs. 8 and 9 show mold releasing products molded by a press mold having a common molding structure of a 2-type press-molded product proposed as a preferred embodiment of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a press die having a common forming structure of a two-piece press-formed product proposed in the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 and Fig. 2 show the overall structure of a progressive press apparatus provided with a press mold having a common forming structure of a 2-type press-formed article, which is proposed as a preferred embodiment of the present invention. Fig. Fig. 3 shows the overall structure of a press mold having a common forming structure of a two-piece press-formed product proposed in the embodiment. Fig. 3 shows a press mold having a common molding structure of a two- FIGS. 4 and 5 are views showing a detailed configuration of a top mold having a molded core portion, a support setting portion, and a stopper portion, and FIGS. 4 and 5 are views showing a press having a common molding structure of a two- 6 and 7 show the state of the support of the forming core portion through the support setting portion in the mold, Fig. 8 and Fig. 9 show the molding process of a mold for press molding having a common molding structure of a two-piece press-molded product proposed in the preferred embodiment of the present invention. Fig. 8 and Fig. Fig. 2 is a view showing a mold-shaped molded article formed by a press mold having a common forming structure of Fig.

In the present invention, a press mold 1 having a common forming structure of a 2-type press molded product is formed by arranging a plurality of press dies 1, 130 on the movement path of a forming plate P, And is disposed in a general purpose progressive press apparatus 100 which is stepwise press-molded by each of the press dies 1 and 130 while being moved step by step along a transfer press apparatus (not shown) Also available.

The press die 1 having the common forming structure of the two-piece press-formed article according to the present invention comprises a lower die 10 disposed on the moving path of the forming plate P and fixed to the fixed base 110, The upper mold 20 is pressed by the lower mold 10 and the upper mold 20 is pressed by the upper mold 20 to move up and down along the movement path to continuously produce the press molded products .

That is, in the present embodiment, common press dies 130 are disposed in the first half of the movement path of the forming plate P to form a common primary molded product 210, and then the press die 1 according to the present invention The two press moldings 220 and 230 having different partial machining areas are commonly used for molding.

The press die 1 having the common forming structure of the two-piece press-formed article according to the present invention is characterized in that the upper die 20 is provided with a forming core 32 and a hoistway 31 A molded core portion 30 configured to include a plurality of protrusions (not shown); A support setting portion 40 for supporting the support end 32a of the molded core 32 and projecting the molded end 32b of the molded core 32 on the machined surface of the upper mold 20 is added, 32 for the selective pressing of the primary molded product 210.

The molded core 32 disposed on the upper mold 20 in the ascending and descending structure adopts a punching pin for punching the primary molded product 210 and a notching pin for trimming and removing a part of the molded plate. A forming pin, a bending pin, or the like may be adopted.

A support spring 33 for upwardly biasing the molded core 32 is disposed in the hoistway 31 provided with the formed core 32 on the upper mold 20 in an ascending and descending structure, The molded core 32 is lifted up along the hoistway 31 by the elastic force provided by the support spring 33 and is lifted up by the upper mold (not shown) 20).

Therefore, when the support setting portion 40 supports the support end 32a of the molding core 32 and the molding end 32b of the molding core 32 protrudes on the molding surface of the upper mold 20, The first primary molded product 210 seated on the lower mold 10 is partially molded by the first setter 32 and the support setting portion 40 is released from the supporting end 32b of the molded core 32, The molded plate seated on the lower mold 10 by the lifting core 32 is not molded.

Thus, the present invention is applicable to a molded product in which the part to be molded is formed by the lifting core 32 by selectively setting whether or not the molded core 32 is supported by the support setting part 40, A molded product in which the portion is not formed can be obtained.

In the present invention, for example, a release lever (220, secondarily molded product) for padding override in which end portions of a commonly molded primary molded product (210) are notched and removed through a molded core (32) and a common molded primary molded product 210) are not removed through the molded core 32, and an override release lever 230 (secondary molded product) is produced.

With this configuration, it is possible to manufacture two types of press-molded products 220 and 230 having different parts to be processed at the site through the single progressive press 1.

That is, each time the operator prepares a 2-piece press-formed article, the operator can change the support state of the lifting core without replacing or removing the press die fixed to the fixed base and the lifting base, Shaped press-molded products 220 and 230 can be selectively formed continuously.

Even if the upper mold 20 is moved up and down by the lifting base 120 that is lifted or lowered in a state in which the forming core 32 is not supported by the support setting unit 40, The worker can change the support state of the formed core 32 through the support setting section 40 according to the molded article to be produced so that the two molded articles 220 and 230 Can be manufactured in common.

The support setting portion 40 for supporting the molded core 32 disposed on the upper mold 20 includes a forward and return path 41 communicating with the upper portion of the hoistway 31 formed on the upper mold 20; The slider 42 which is installed in the advancing / retreating path 41 in the advancing and retreating structure and supports the supporting end 32a of the forming core 32 which is moved forward and backward in the advancing / The support state of the molded core 32 is switched and set by the forward and backward movement of the slider 42. [

In the present embodiment, the forward / backward path 41 is formed in an orthogonal direction on the upper portion of the hoistway 31 on which the molded core 32 is disposed, and the forward / One slider 42 allows the impact provided by the molded core 32 to be dispersed throughout the upper mold 20 by press molding.

The release section 42a and the downwardly protruding support section 42b are respectively formed on the bottom surface of the slider 42 so that the slider 42 is moved to one side to form the release section 42a. When the support end 32a of the core 32 enters, the support of the formed core 32 is released. When the slider 42 is moved to the other side, the formed core 32 is inserted into the support section 42b of the slider 42, So that the support end 32a of the support member 32 is supported downward.

At this time, the slider 42 is formed with a pair of restricting grooves including a release restricting groove 42c and a support restricting recess 42d, and a support stopper 52 is provided in the advancing / retreating path 41, The slider 42 is set by switching the support state of the molded core 32 so as to move forward and backward along the advancing / retreating path 41. The slider 42 is supported by the support stopper (not shown) of the stopper portion 50 52 are selectively inserted into any one of the pair of position-restricting grooves 42c, 42d to be positively fixed on the advancing / retreating path 31.

Here, the support stopper 52 is elastically supported by the elastic spring 51, so that the elastic restraint of the slider 42 is achieved.

The worker moves the slider 42 to one side and presses the support end 32a of the molded core 32 against the support 42 of the slider 42 when the primary molded product 24 is required to be pressed through the molded core 32. [ Section 42b so that molding of the primary molded product by the molded core 32 is performed.

At this time, the slider 42 moved to one side is stably positioned and fixed by the support stopper 52 of the stopper portion 50 which has entered the support restricting groove 42d, and by the impact generated in the press forming process, (42) moves arbitrarily along the advancing and retreating path (41), thereby preventing the supporting state of the formed core from being arbitrarily released.

The worker moves the slider 42 to the other side of the slider 42 by moving the supporting end 32a of the molded core 32 toward the slider 42 Is supported through the release section 42a so that the primary molded product 210 can not be molded by the molded core 32. [

At this time, the slider 42 moved to the other side is stably fixed in position by the stopper 51 of the stopper portion 50 which has entered the release and restricting groove 42c, so that the slider 42 42 are arbitrarily moved so that the state of disengagement of the molded core 32 is prevented.

The press die 1 having the common forming structure of the two-piece press-formed article according to the present invention and the progressive press apparatus 100 including the press mold 1 according to the present invention are arranged in the vertical direction of the lifting core 32, It is possible to selectively form the two-piece molded products 220 and 230 by setting whether or not the primary molded product is to be press molded.

1. A press mold having a common forming structure of a 2-type press-
10. Lower mold 20. Upper mold
30. Molded core part 31. Hoistway
32. Molding core 33. Supporting spring
40. Support setting section
41. Slide 42. Slider
42a. Release section 42b. Support section
42c. Support restraining groove 42c. Release restraint groove
50. Stopper 51. Tangential spring
52. Support stopper
100. Progressive press apparatus 110. Support base
120. Lifting base 130. Transfer unit
200. Molded plate 210. Primary molded product
220. Secondary Products

Claims (3)

A press mold having a lower mold fixed on a base and a upper mold fixed on a lifting base and disposed on a movement path of a forming plate and moving up along a moving path and seated on a lower mold, As a result,
Wherein the upper mold comprises a molded core and a molded core portion including a hoistway for mounting the molded core in a lifting structure;
A support setting portion for supporting the support end of the forming core and projecting the forming end of the forming core is formed on the upper working surface,
Wherein when the support setting portion supports the molded core supporting end and the molded end of the molded core protrudes on the machined surface of the upper mold, partial molding of the molded plate seated on the lower mold is performed by the molded core,
Wherein when the support of the forming core supporting end is released by the support setting part, the forming plate seated on the lower mold by the lifting core is unformed. [2] The apparatus of claim 1, wherein the support setting portion comprises: a forward / backward path communicating with an upper portion of the hoistway formed on the upper mold; And a slider which is provided in the advance and return passage in a retracted and retracted configuration and which supports the support end of a forming core provided in the hoistway and is advanced and retracted into the forward and backward path to set the support state of the formed core by forward and backward movement of the slider Wherein the mold has a common forming structure. The slider according to claim 1, wherein a release section upwardly recessed and a support section protruding downward are formed on the bottom surface of the slider,
The supporting end of the forming core is released when the slider moves to one side and the supporting end of the forming core enters the releasing section, and when the slider moves to the other side, the supporting end of the forming core is supported on the supporting section of the slider. A press mold having a common forming structure of a 2-type press-formed article.

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