KR880000606B1 - Press apparatus - Google Patents

Abstract

In the press device 1 having a square sectional reciprocating body (4) installed for free back-and-forth movements in the base (3) of the main body (2), the base (3) has in the center a square sectioned pressure chamber (5) corresponding to the shape of the body (4) for housing it. Around the chamber (5) in the center are provided a plurality of pressure medium compartments (6) for supplying the medium to the pressure chamber (5) through passages (11) formed in ribs (10) at the bottom of the base.

Description

Press device

1 is a perspective view showing an entire press apparatus according to the present invention.

FIG. 2 is a side view showing the press body of the press apparatus shown in FIG.

3 is a perspective view of a state in which a cover, a device part, and the like of the base of the press body are removed.

4 is a schematic cross-sectional view taken along the line IV-IV in FIG. 3.

5 is a perspective view showing the bottom portion of the base shown in FIG.

* Explanation of symbols for main parts of the drawings

1 press device 2 press body

3: donation 4: retreat body

5: pressure chamber A: front of base

B: back of donation C: left of donation

D: Right side of base 6: Liquid pressure medium chamber

7: passage 8: hydraulic unit

9: bottom part 10: rib

10B: Rib to the rear 10C: Rib to the left

10D: Rib to the right 11: Pathway

12B, 12C, 12D: Flange portion 13: Upper frame

14: prop 15: nut

16: holding device hole 17: working table

18: upper mold 19: lower mold

20, 21, 22: electric control device 23: connection hole

24: communication hole

The present invention relates to an apparatus for driving a moving body (hereinafter, simply referred to as a "moving body") such as a piston, a ram, or the like with a hydraulic pressure medium (for example, oil).

It is known that the force exerted by the fluid pressure medium (for example, oil) due to the drive of the oscillator in the cylinder is directional, and the oscillator frame rotates even if the cylinder is moved forward or backward in the cylinder. In addition, when this push-up and return body is used in the press apparatus for forming by the precise positioning of the upper and lower dies, it is difficult to have the "rotation" described above, so (a) it is necessary to prevent the rotation, When forming the work table to be mounted, (b) there is also a need to prevent it from sagging and sagging. In a conventional hydraulic press device, an auxiliary multi-cylinder or a slide guide is used in combination with a reclining body. have.

As auxiliary multi-cylinders, for example, four, in some cases, nine multi-cylinders in combination with the positive and negative bodies, the main body and the multi-cylinder are supported.

面) 측에 부속시켜 설치하고 있으므로 (마) 프레스 본체의 바닥면적 즉, 바닥에 차지하는 프레스 본체의 면적이 그만큼 커지기 쉽다.Furthermore, because of driving the retractor and the multi-cylinder, (d) a considerable amount of liquid pressure medium (e.g. oil) is required.

(E) The bottom area of the press main body, i.e., the area of the press main body occupying the floor, tends to be large.

In addition, in the press apparatus that requires molds, the mold exchange process is indispensable, and heavy and expensive molds are exchanged, so that severe exchange work by forklift is required. The mold replacement work is performed from the back side of the press body which is not available. As described above, since the tank for the liquid pressure medium is installed on the rear surface of the press main body, the forklift having a large length extending forward is used and the mold is exchanged with effort.

Moreover, the apparatus used for processing the electronic components of a press apparatus, for example, resin sealing molding for an IC lead frame, is often installed in a woowoo clean luum to be pressed.

However, as is well known, the construction cost of this Clinium is very large, and of course, it is preferable that the overall size including the floor area and the height of the top and bottom of the equipment and machinery installed in the Clinium is as small as possible. There is no exception to this request, and (g) it is necessary that the overall size of the press apparatus is small.

In addition, a complex passage is provided inside and outside the base to connect the tank for the liquid pressure medium, the external equipment (for example, the hydraulic unit), and the respective pressure chambers for the oscillator and the multi-cylinder for driving the oscillator and the multi-cylinder. It was necessary to refuel and drain the liquid pressure medium.

In order to prevent "rotation" of the moving body when driving the moving body using a hydraulic pressure medium, the present applicant has proposed a moving body having a quadrangular cross section and a hydraulic press device using the same (Japanese Patent Laid-Open No. 58). -217805).

As a result, the above-mentioned rotation apparatus is achieved, and if it is a planar shape corresponding to the shape and size of the press mold for installing the cross-section of the quadrilateral oscillator, the deflection of the above-mentioned (b) "I knew Zhang was also attained.

The present invention (the invention described in claim 1, hereinafter referred to as the first invention) further develops the technology already proposed by the present applicant, omitting an auxiliary multi-cylinder or a slide guide, and supporting a moving body. The base size should be as small as possible, so that the tank for the liquid pressure medium is built into the base of the press body to facilitate the exchange of molds, and furthermore, to make sense for installation in the cleaninum. It is to provide a press apparatus which can satisfy the conditions of g).

In addition, the present invention (the invention described in claim 2 of the claims, hereinafter referred to as the second invention), in addition to the above intention of the first invention, further provides a liquid pressure medium oil supply and drainage passage on the bottom of the base. It is an object of the present invention to provide a press apparatus that can be freely formed so as to satisfy the above-mentioned conditions (a) to (4).

In order to achieve the above object, in the present invention (first invention), as already proposed, the cross-sectional shape of the pressure chamber of the base which adopts the oscillator having a quadrilateral shape and further supports and accommodates the oscillator is quadrilateral. According to the quadrilateral oscillation body, the area of the cross section for supporting and accommodating the pressure chamber is made small, and the hydraulic pressure medium which is conventionally located on the rear side is stored in the base which is made free by omitting the auxiliary multi-cylinder or slide guide. In addition to the above-mentioned (a) and (b), the conditions of (c)-(bar) can also be satisfied by changing the shape of the dragon tank.

More specifically, as a means for solving the problem, even in the press apparatus according to the present invention (first invention), the center of the press main body has a cross-sectional quadrangular shape substantially corresponding to the shape of the oscillating body, and further retreats. The main idea is to form a pressure chamber that supports and accommodates the fuselage, and to provide several pressure chambers in the front, rear, left, and right positions of the pressure chamber located in the center of the plane to lubricate the liquid pressure medium. Doing.

In addition, in the present invention (second invention), in addition to the above-described contents of the first invention, ribs are formed in the bottom portion of the base to free the ribs. (F) can also be satisfied.

More specifically, as a means for solving the problem, in the press apparatus according to the second invention, the center of the press main body has a cross-sectional quadrangular shape substantially corresponding to the shape of the moving body and supports and accommodates the moving body. And a liquid pressure medium chamber in the pressure chamber, and a plurality of ribs are formed in the bottom portion of the base between the front, rear, left and right sides of the base and connected to external equipment. It is a summary that the dragon passage is formed freely in this rib.

The cross-sectional shape of the pressure chamber that supports and accommodates the moving body freely to move back and forth is easy to make a quadrilateral shape corresponding to the shape because the moving body uses a quadrilateral cross-sectional shape. The shape of the pressure chamber can be achieved by adopting a pressure chamber space necessary in the base of the press main body, in other words, by reducing the size of the cross section as compared with the conventional cross-sectional circular pressure chamber.

Furthermore, no "rotation" occurs at all when the oscillator is driven in order to support and accommodate the cross section quadrilateral oscillator in the pressure chamber of the cross section quadrilateral.

This eliminates the need for supporting and accommodating the auxiliary multi-cylinder or slide guide, leaving room on the space, and eliminating the need to drive the multi-cylinder. . This further means that the receiving space of the liquid pressure medium is finished even if it is small.

In the present invention (first invention), the conventional tank of the liquid pressure medium is abolished, and the liquid pressure medium chamber in place of the tank is formed as a cross-sectional quadrilateral shape of the pressure chamber in the base. As the guide is omitted, a plurality of parts are formed in front, rear, left, and right positions of the pressure chamber located in the center on the plane by utilizing a portion left over. Conventional tanks need to have a large capacity as it is, but the amount of liquid pressure medium in the multi-cylinder drive yaw can be adjusted, and a large amount of liquid pressure medium seal can be obtained at one place because the liquid pressure medium chamber is formed in the gas in several places. Although generally absent, a " necessary and sufficient capacity " liquid pressure medium chamber can be formed in the base body.

In this way, since the conventional tank was removed from the rear part of the press main body, the bottom area of the press main body became smaller, and the size of the press main body was more suitable. Even though it does not change, it is not necessary to change the overall height of the press device as it is high, and the rear side is smooth without any impurities, so that the mold using the part can be easily replaced, and the conventional reach is changed to a long fork lift. The compact forklift, which is short, allows for easy mold change.

In addition, the present invention (second invention), in addition to the content of the first invention by using a plurality of ribs formed in the bottom portion of the base again to form a passage for the pressure medium from the center of the base toward any side from front to back, left and right Therefore, the passage is smoothly formed without any clutter at the bottom of the base, so that it can be connected without forming a complicated passage even if it is placed outside the device or around the base.

Next, embodiments of the present invention will be described with reference to the drawings.

Moreover, since the first invention and the second invention have a lot in common, duplicate descriptions are avoided.

入)하기 위한 수지 시일링 성형용의 프레스 장치(1)를 나타내고 있으며, 이 프레스 장치(1)는 프레스 본체(2)의 기부(3)에 횡단면 형상이 4각 형상인 진퇴치(1)를 나타내고 있으며, 이 프레스 장치(1)는 프레스 본체(2)의 기부(3)에 횡단면 형상이 4각 형상인 진퇴치(1)를 나타내고 있으며, 이 프레스 장치(1)는 프레스 본체(2)의 기부(3)에 횡단면 형상이 4각 형상인 진퇴동체(4)를 상하방향으로 진퇴동이 자유롭도록 지지·수용하는 횡단면이 4각 형상의 압력실(5)을 마련하고 있다.In the drawing, resin is contained in the IC lead frame as a press device (

The press apparatus 1 for resin sealing molding to insert is shown, and this press apparatus 1 places the advance and retreat 1 of which the cross-sectional shape is quadrilateral to the base 3 of the press main body 2. As shown in FIG. The press apparatus 1 has shown the base 1 of the press main body 2 and the regression tooth 1 whose cross section shape is a quadrilateral shape, and this press apparatus 1 has The base chamber 3 is provided with a four-sided pressure chamber 5 having a four-sided cross section for supporting and accommodating the four-sided oscillator 4 having a four-sided cross-sectional shape so as to freely move up and down.

As shown in FIG. 3, the base 3 has a plane having a substantially quadrangular shape, and the pressure chamber 5 is located at the center of the plane and is recessed in the base 3.

The recessed depth is appropriately set in accordance with the rising stroke of the forward and backward body 4.

A pair of liquid pressure medium chambers 6 are respectively applied to the periphery of the pressure chamber 5, that is, four places of the front side A, the rear side B, the left side C, and the right side D of the base chamber 3. Like the chamber 5, it is recessed, and each of the liquid pressure medium chambers 6 and the liquid pressure medium chambers 6 and the pressure chambers 5 are connected to the pressure chamber 5 in the liquid pressure medium ( Oil ") through the passage 7 for lubricating oil.

The hydraulic main unit 8 is connected to the press main body 2 as external equipment due to the oil supply and drainage control of the liquid pressure medium to the pressure chamber 5, the forward and backward control of the forward and backward body 4, and other operations. In order to make it convenient, the bottom part 9 of the base 3 protrudes several ribs 10 between front and rear, right and left sides (A) (B) (C) (D) and the center (specifically, in the rear body). Ribs 10B, ribs 10C on the left side, and ribs 10D on the right side, and selectively use these 10B, 10C, 10D to pass through the passages for the liquid pressure medium ( 11 is formed so that the hydraulic unit 8 can be easily connected to the passage 11 even if the hydraulic unit 8 is arranged anywhere around the base 3. Furthermore, flange parts 12B, 12C, and 12D are formed in the bottom face part, and the connection port 23 and the communication port 24 can be opened there. In the illustrated example, the passage 11 is formed in the rib 10B between the center of the rear side B and the bottom surface 9, and is disposed in the right side against the front side A of the press body 2. (8) (see FIG. 1) and the passage 11 through which the electric passage 11 is formed in the flange portion 12B are easily connected. When connected, the pressure chamber 5 or the liquid pressure medium chamber are connected. 6 and the upper hydraulic unit 8 are connected via the passage 11. The ribs 10B, 10C, 10D, and the flange portions 12B, 12C, and 12D also exhibit a function of reinforcing the strength of the base 3.

Furthermore, in the drawing, reference numeral 13 denotes an upper frame, 14 a support, 15 a nut, for mounting the support 14 to the support device hole 16 of the base 3, and 17 a work. As a table, it is set in the cross section of the advance and reverse body 4, 18 is an upper mold, and 19 represents a lower mold, respectively.

In addition, (20), (21), and (22) is an electric control apparatus, and it is made to unite with the press main body 2 together.

In this press apparatus 1, the tank mounted on the rear side (B) of the conventional press main body 2 was removed, and instead, the liquid pressure medium chamber 6 was formed in the part 3, and the electric control apparatus ( 20), (21), and (22) are also integrated with the press main body 2, so the floor area is reduced by that much.

Therefore, the area of the work table 17 and the bottom area of the press main body 2 are almost the same.

Since the press apparatus according to the present invention has the contents as described above, many effects can be expected. And the main contents of the contents are as follows.

According to the first invention;

(i) Since the cross-sectional shape of the moving body is quadrangular, and the cross-sectional shape of the pressure chamber is also quadrangular, the rotational motion is not added to the moving of the moving body.

(ii) As a result of (i), the auxiliary multi-cylinder or slide guide, which is indispensable in the past, can be omitted, so that a space is provided at the base of the press main body, and the liquid pressure medium for driving the multi-cylinder becomes unnecessary. In addition to quantitative savings, the tank capacity for accommodating liquid pressure medium can be reduced, and the weight of the press body can be reduced.

(iii) The built-in liquid pressure medium chamber at the base of the press main body eliminates the need for a conventional tank, and opens the rear space of the press main body so that the tank that prevented the mold change is removed. It is possible to exchange molds sufficiently by using, while simplifying mold exchange efforts and shortening of time.

(iv) The conventional tank can be omitted according to (iii), so that the bottom area of the press main body can be reduced by that. When the press apparatus according to the present invention is applied to the press apparatus installed in the clean luum, the installation space is reduced. Since it may be smaller than the conventional one, it can contribute to the economics of the clinium,

And

(v) According to (i)-(iv), a synergistic effect can be expected, is easy to use, and the overall size is small, thereby providing a press apparatus having a small floor area. Furthermore, according to the second invention; In addition to the effects of (i)-(v) described above of the first invention,

(vi) The bottom part of the base is provided with a plurality of ribs between the front, rear, left and right sides of the base to freely form a passage for the liquid pressure medium to be connected to external equipment. In addition, the external device may be easily connected to the pressure chamber or the liquid pressure medium chamber in the base even if the external devices are arranged around the outside of the base via a passage formed in the rib.

Claims (2)

In the press apparatus 1 which equips the base body 3 of the press body 2 with the cross-sectional shape so that forward and backward movement is free in the base part 3 of the press main body 2, the said base part 3 is an oscillator body in the center. A pressure chamber (5) having a quadrilateral shape approximately corresponding to the shape of (4) and supporting and accommodating the oscillating body (4) was installed, and the pressure chamber (5) was supplied with a liquid pressure medium. A press device, characterized in that a plurality of liquid pressure medium chambers (6) are provided in front, rear, left and right positions with respect to the pressure chamber (5) located in the center on a plane. In the press apparatus 1 which equips the oscillating body 4 of which a cross-sectional shape is a quadrilateral shape so that the oscillation can be freely moved in the base 3 of the press main body 2, the said base 3 advances and retreats in the center. A pressure chamber 5 having a quadrangular cross section approximately corresponding to the shape of the body 4 and supporting and accommodating the moving body 4 is provided, and the pressure chamber 5 is rapidly supplied with a liquid pressure medium. A plurality of hydraulic pressure medium chambers 6 are provided at the front, rear, left and right positions of the pressure chamber 5 located in the center on the plane, and the front, left, and right sides of the base 3 are provided at the bottom of the base 3. A press device characterized in that a plurality of ribs (10) are formed between the center and a passage (11) for a liquid pressure medium to be connected to external equipment is freely formed in the rib (10).

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