JPS6033826A - Press die - Google Patents

Abstract

PURPOSE:To reduce stage and to improve productivity by performing drawing to form a narrow-width part and cutting with one stage. CONSTITUTION:A channel material with the middle piece thereof faced downward is inserted into dies and as a ram descends, a punch holder 5 descends. Upper dies 21, 41 engage with engaging and disengaging means 33, 53 to lower middle punches 23, 43 to insert the channel member into the recesses of lower dies 22, 42, thereby narrowing the lower part thereof and forming the primary narrow-width part. The means 33, 53 disengage from the punch 23 upon forcing- in of the punch 23 and side punches 24, 44 descend to form the steeply bent narrow-width part. The holder 5 descends further and the side punch 44 of the 2nd drawing die 3 advances into the recess. The 1st drawing die 2 cuts the channel material in the central part of the narrow-width part thereof as the lower die 42 of said die descends diagonally.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a press mold that is capable of simultaneously forming a narrow portion in a channel member and cutting the same.

[Background technology]

For example, as shown in FIG. 15, by providing a narrow portion a at one end of the channel member W, and inserting and joining the narrow portion a into the groove of the other channel member W1, for example, by dry method 1 method. In these buildings, frames for construction panels used for walls, floors, etc. are formed. Conventionally, after cutting the channel-shaped material W, the narrow portion a is formed at each end. Since the shape was formed by press working each time, two steps of cutting and drawing were required, resulting in poor productivity.

[Purpose of the invention]

An object of the present invention is to provide a press mold that can improve productivity and solve the above-mentioned problems by performing drawing and cutting to form a narrow width part in one step.

[Disclosure of the invention]

As shown in the drawings of the embodiment, the press die 1 of the present invention includes a first drawing die 2 and a second drawing die 3 adjacent to each other, and in this embodiment, the first and second drawing dies 2.3 is an integrated type in which the punch holder 5 and the die holder 6 are common, and the punch holder 5
is not connected to the ram of the press, but is formed in the shape of a die set that is pressed by its descent.

The eleventh second drawing die 2.3 is surrounded by a peripheral wall lO that stands up on the die holder 6.

The first drawing die 2 includes an upper die 21 and a lower die 22, and the lower die 22 includes a die 25 having a substantially V shape and a guide tool 26 that receives the die 25 and guides it diagonally downward. Become.

The die 25 has a relatively shallow width that allows only the lower part of the groove W into which the lieutenant Wa is inserted, that is, the vicinity of the lieutenant Wa, to be inserted into the center of the 7-shaped groove, and the width of the groove W. The die 25 is provided with four parts 27 which are approximately twice as narrow as the plate thickness, and a knockout pin 28 protruding from the recess 27 is attached to the die 25 so as to be movable forward and backward.

As shown in FIGS. 5 to 8, the guide includes a triangular guide piece 61 that guides one slope 25a provided on the lower surface of the die 25, and a pusher that can come into contact with the other slope 25b and penetrate the peripheral wall 10. A movable piece 63 having a protruding shaft 62 and the push shaft 6
A hanging shaft 65 that hangs down from the punch holder 5 presses down the cam shaft 64 as the punch holder 5 descends, so that the push shaft 62 is installed on the cam shaft 64. Can enter cam 1se6. Therefore, the push shaft 62, which is urged outward by the spring,
By entering the cam groove 66, the movable piece 63 is moved outward, and the die 25 can be moved diagonally downward while slidingly contacting the guide piece 61.

As the ram shaft 64 rises, the push shaft 62 separates from the cam groove 66 and enters inward, thereby returning the die 25 diagonally upward to its current position.

The upper mold 21 includes a middle punch 23 and a side punch 24.

As shown in FIG. 11, the side punch 24 has a groove at its upper end, and by fitting the groove into a lid groove provided horizontally on the punch holder 5, the side punch 24 can be punched in a direction perpendicular to the groove-shaped material W. movably supported. The side punch 24 is a block body shaped like a shogi piece and has slopes on both sides of the lower surface that fit into the 7-shaped groove formed in the upper part of the die 25, and a hanging wall 29 is left in the center of the side punch 24. A cutout 30 is formed. Note that the internal dimensions of the notch portion 30 are set to be between the recess 9B27 and the recess 9B27.

The middle punch 23 fits into the notch 30.

The middle punch 23 is formed with a groove into which the hanging wall 29 fits, and a push-in part 32 with a width that can push the grooved material W into the recess 27 is provided at the lower part of the groove, while the middle punch 23 and The side punch 24 is the locking/disengaging tool 3 shown in FIGS. 3 and 4.
3.

The locking and disengaging tool 33 includes a locking piece 71 that fits into a hole 34 provided in the middle punch 23, a movable piece 72 that is slidably attached to a hole provided in the peripheral wall IO, and a cam shaft that hangs down from the bond holder 5. 73, and the locking piece 71 is
When the middle punch 23 is raised, its back surface slides against the inner surface of the peripheral wall 10 and projects inward, so that it can come into diagonal contact with the lower surface of the hanging wall 29 of the side punch 24. Therefore, when the side punch 24 descends, the middle punch 23 can be pushed downward through the locking piece 71 until the grooved material W is pushed into the four parts 27, and when descending, the movable piece 72 is lowered. By aligning with the cam groove 74 provided on the cam shaft 73, the locking piece 71 enters into the hole of the movable piece 72, as shown in FIG. As a result, by separating from the hanging wall 29, only the side punches 24 can descend behind the middle punches 23.

The second drawing die 3 has an upper die 4 as shown in FIGS.
1 and a lower mold 42, the lower mold 42 is integrally formed in a block shape with a 7-shaped groove provided on the upper surface, and is also formed in the same manner as the lower mold 22 of the first drawing mold 2, There is a recess 4 in the center.
7 and is provided with a knockout pin 28.

The upper die 41 is the same as the first drawing die 2 except that the side punch 44 is attached to the punch holder 5 so as not to be transversely traverseable and is formed slightly shorter, and the side punch 44 is pressed through an extendable tool 90. The middle punch 43 and the side punch 44 are moved relative to each other by a locking/disengaging tool 53.

The extendable tool 90 has a guide shaft 91 bolted to the punch holder 5, a slide piece 92, and a mating portion 93 formed on the inner surface of the peripheral wall 10.
1, the side punch 44 is inserted into a hole 55 passing through the inside of the hanging wall 39 from the upper surface thereof, and the slide piece 92 is inserted into a side hole 56 passing through the hanging wall 39. The slide piece 92 has a recess 97 in its upper part, is biased outward by a spring interposed between the facing peripheral wall 10 and a sliding contact piece 98 that comes into contact with it, and has an oblique notch on the lower surface of its tip. A sliding contact portion 99 is formed. The guide portion 93 is formed on the inner surface of the peripheral wall 10 and comes into contact with the sliding contact portion 99 of the slide piece 92 when the side punch 44 is lowered. Therefore, the slide piece 92 can be pushed inward until the guide shaft 91 is aligned with the recess 97.

Furthermore, in this embodiment, as shown in FIGS.
, 5a are provided with cylinders 11.11 such as air cylinders. The lower end of the cylindrical portion 11a of the cylinder 11 is tiltably supported by a bearing piece 13 raised up on the overhanging portion 6a, and the rod 11b thereof is screwed onto the lower surface of the overhanging tool 5a using a lock nut 14. Further, a spring 15 is interposed between the peripheral wall 10 and the punch holder 5 to bias the punch holder 5 in the upward direction.

1. The press die 1 of the present invention has its die holder temporarily fixed to the plate of the press, and the punch holder 5 is attached to the press so that it can be pushed down by a ram.

When the punch holder 5 is pulled up, as shown in FIG. 5, the channel member W is inserted below its lieutenant Wa, and the punch holder 5 is lowered as the ram is lowered. As a result, as described above, the upper die 21.41 is attached to the locking/detaching tool 33.41.
53, the middle punch 23.43 is lowered, and as shown in FIG.
．． 47 and by narrowing its lower part, a primary narrow part with a gentle end can be formed, as shown in FIG. At the same time as the middle punch 23 is pushed in, the locking/unlocking tool 33
．． 53 releases the bond with the middle punch 23,
By lowering the side punches 24 and 44 and pressing the side piece wb as shown in FIG. 7, a narrow portion a with a relatively steep bend can be formed as shown in FIGS. 13 and 14. .

In this state, the slide piece 92 of the expandable member 90 of the upper die 41 of the second drawing die 3 comes into contact with the guide portion 93, and the guide shaft 91 is aligned with the recess 97.

At this time, the guide tool 26 of the first drawing die 2 has its push shaft 62 facing the cam groove 66 of the lowered cam shaft 64.

When the punch holder 5 is further lowered, the side punch 44 of the second drawing die 3 is moved to the recess 97 as shown in FIG.
The upper mold 41 can thus remain stationary, while the first drawing mold 2 moves its lower mold 4 by its guide 26 as described above.
2 descends diagonally downward and moves diagonally downward relative to the second drawing die 3, as shown in FIG. 8, so that the groove-shaped material W can be cut at the center of its narrow portion a. As the ram is pulled up, the punch holder 5 is lifted by the spring 15, and the groove material W is floated by the non-knockout pin.

Furthermore, in the event that the upper die 21.41 and the lower die 22.42 become wedged together via the channel member W, high pressure air is supplied to the cylinder 11 to extend the rod 11b and forcibly lift the punch boulder 5. By doing so, the biting can be released and the channel member W can be taken out.

〔Effect of the invention〕

The press die of the present invention is provided with first and second drawing dies, and the first and second drawing dies are equipped with a medium punch,
Since the center punch has a side punch that presses the side pieces again after forming the narrow part with the middle punch, each end of the center part can be bent with high precision and at a relatively steep angle 2). The drawing die of the first drawing die can move relative to the second drawing die to cut the grooved material,
Therefore, the formation and cutting of the narrow portion can be performed in one step, and processing accuracy and work efficiency can be greatly improved. In addition, channel-shaped materials can be cut into so-called single cuts by shearing, which has excellent effects such as improving material yield without generating chips.In addition to forming architectural panels, it is also possible to draw channel-shaped materials for various uses. , can be used as a general-purpose cutting device.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a sectional view taken along line A-A in Fig. 1, and Fig. 4 shows the state in which the punch holder has been processed. 5 is a sectional view showing the first drawing die, FIGS. 6 to 9 are sectional views showing the action of the punch holder as it descends, and FIG. 10 is a sectional view showing the second drawing die. Fig. 11 is a sectional view showing the punch holder in a lowered state, Fig. 12 is an exploded perspective view illustrating the upper die, Fig. 13 is a perspective view illustrating the channel member on its way down, and Fig. 8814 is the narrow part. FIG. 15 is a perspective view illustrating the narrow part and the cut location, FIG. 14 is a sectional view illustrating the narrow part formed, and FIG.
FIG. 5 is a perspective view showing a state in which groove-shaped members having narrow width portions are combined. 2--First drawing die, 3-882 drawing die, 5--Punch holder, 6--Gui holder, 7--Peripheral wall, 1
1--Cylinder, 21-Upper mold, 22--Lower mold, 23
-・-Medium punch, 22-・Side punch 26-・-Guide,
33--Latching/detaching tool, 41--Upper mold, 42--Lower mold,
43- Middle punch, 44- Side punch, 60- Extension tool, a- Narrow part,
W--channel material. Wa-Lieutenant Colonel, wb--side piece. Patent Applicant National Housing Industry Co., Ltd. Agent Patent Attorney Tadashi Naemura Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11

Claims (1)

[Claims] (1) Have an adjacent first gA2 drawing die, inwardly recess the side piece of the channel material with the middle piece inserted below, and cut the channel material at the narrow width of this recess. The first and second drawing dies are provided with an upper die and a lower die, and the lower die is relatively shallow and can fit only the lower part of the groove-shaped member, and is relatively shallow compared to the groove-shaped member. At the same time, an intermediate recess is formed, and the upper die includes a middle punch that can push the channel material into the recess, and a side that descends after the middle punch and presses the side plate of the channel material inward. 1. A press mold comprising a punch, wherein the first drawing die is movable diagonally downward relative to the second drawing die together with the lower die when the upper die is in a lowered state.