JP3043182B2 - Horizontal trimming press machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal trimming press for punching unnecessary parts such as runners and overflows of cast products such as die cast products.

[0002]

2. Description of the Related Art A horizontal automatic trimming press is widely used for removing unnecessary parts such as a runner and an overflow of a die-cast product because the removed unnecessary parts and the product after the removal can be automatically selected. Such a horizontal automatic trimming press is disclosed in, for example, JP-A-63-13 / 1988.
No. 2731 is known.

In the horizontal automatic trimming press described above,
After the stamp at the end of the runner of the product after casting is sandwiched, it is positioned between the movable male mold and the fixed female mold that are arranged opposite to each other, and then brought into contact with the female mold.From the front while pressing the back of this product, The male mold is moved to punch out runners and overflows, and the trimmed product and the removed portion can be selected and taken out.

However, in the above configuration, the punching means, the means for pressing from the back of the product, and the holding means for holding the part to be removed of the product are independent of each other. Not only is it complicated, but it also requires time for the cycle of the punching process, resulting in poor work efficiency.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a horizontal trimming press having excellent work efficiency and controllability.

[0006]

Thus, according to the invention of claim 1 of the present application, "a set of movable members (5) and (6) which are arranged facing each other and can approach and separate from each other, A cylindrical female mold (2) provided on the facing surface of the first movable member (5) and the cylindrical female mold (2) provided on the facing surface of the other second movable member (6);
This cylindrical female mold has a cross-sectional shape that substantially matches the inner peripheral shape of
(2) A first male mold (3) inserted into the first female member (5), and a first movable member (5) attached to the cylindrical female mold (2) so as to be able to protrude and retreat.
A second male die (4) capable of holding the product main body (11a) opposite to the male die (3), wherein the first male die (3) and the second male die (4) form a main body of the product. With the (11a) pinched, the first male mold (3) is fitted and inserted into the cylindrical female mold (2) to cut and remove unnecessary parts attached to the product body (11a), and at least immediately after the removal. Provides a horizontal trimming press machine (1) configured to hold a product body (11a) in a cylindrical female mold (2).

The trimming press (1) of the present invention is configured so that both the cylindrical female mold (2) and the first male mold (3) that contribute to the trimming operation are movable. It is preferable that both the first movable member (5) provided with the cylindrical female mold (2) and the second movable member (6) provided with the first male mold (3) are hydraulically driven. The first movable member (5) is provided with a second male mold (4) that can reciprocate inside the cylindrical female mold (2) and move out from the female mold toward the first male mold (3). Can be In this case, the drive of the second male mold (4) is also preferably hydraulically driven, but may be smaller than the hydraulic pressure for driving the first and second movable members (5) and (6).
The cylindrical female mold (2), the first male mold (3) and the second male mold (4) are all provided coaxially.

The clamping positions of the product (11) to be trimmed by the first male mold (3) and the second male mold (4) are the first male mold (3) and the second male mold (3).
The position where the cycle can be performed in the shortest time by shortening the stroke of the male mold (4) and the cylindrical female mold (2) is arbitrarily selected.

[0009] In the trimming press machine (1) of the present invention, the product body (11a) immediately after the removal of the unnecessary portion is a cylindrical female mold.
(2) may be sandwiched between the first male mold (3) and the second male mold (4), and the inner wall of the cylindrical female mold (2) and the product body (11)
The side of (a) may be engaged and held, in short, the fall timing of the cut and removed unnecessary part and the fall timing of the product body (11a) discharged from the cylindrical female mold (2) What is necessary is just to be comprised so that deviation may occur.

That is, the unnecessary portion and the product main body (11a) can be selected by the above-mentioned shift in the drop timing. As an example, it is preferable that the tray has a product receiving chute and a tray so that the tray is located at the lower part of the trimming press machine when the product body (11a) falls, and the tray is removed from the lower part of the press machine when the unnecessary part falls. Can be mentioned.

The shape of the tip of the first male mold (3) and the shape of the tip of the second male mold (4) are appropriately changed according to the uneven shape of the product body (11a).

[0012]

According to the invention of claim 1 of the present application, the second movable member (5) is provided with the second movable member (2) provided on the opposing surface of the first movable member (5).
A second male mold (4) projecting toward the movable member (6);
The product main body (11a) to be trimmed is sandwiched by the first male mold (3) provided on the facing surface of the second movable member (6) driven close to the movable member (5), and in this state, First
When the movable member (5) is driven close to the second movable member (6), the cylindrical female die (2) is inserted through the second male die (4) and the first male die (3) is inserted. It will be. As a result, an unnecessary portion attached to the product main body (11a) is cut off and dropped by the outer periphery of the first male mold (3) and the inner periphery of the cylindrical female mold (2). At this time, the product body (11a) is held in the cylindrical female mold (2).

Next, the first movable member (5) is moved to the second movable member.
(6) is separated from the product body (1) in the cylindrical female mold (2).
The holding state of 1a) is released, but usually the product body (11a)
The cut surface of the side surface engages with the inner wall of the cylindrical female mold (2) and does not separate. In this state, when the second male mold (4) is further operated to protrude, the product body (11a) is discharged from the cylindrical female mold (2) and falls.

[0014]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the invention is limited thereto. Embodiment 1 FIG. 1 is an explanatory side view of an example of a horizontal trimming press according to the present invention. In the figure, a horizontal trimming press (1) includes a press frame (10), a tie bar (9), a first fixed plate (7) and a second fixed plate (8), a first movable member.
(5) and second movable member (6), cylindrical female mold (2), first male mold (3),
It is mainly composed of a second male mold (4), a first movable member drive means (51), a second movable member drive means (61), and a second male mold drive means (41).

The first fixing plate (7) and the second fixing plate (8) are respectively fixed to the left and right ends on the press frame (10) and are opposed to each other. A pair of tie bars (9) is installed on the tie bar.

The first movable member (5) and the second movable member (6)
The tie bar (9) is movably inserted into the tie bar (9). First
As shown in the figure, the movable member (5) has a bottomed cylindrical recess (5a) formed at the center, and the opening of the tubular recess (5a) is the second movable member (6). The cylindrical female mold (2) is attached to this opening.

The first movable member driving means (51) inserts the first fixed plate (7) through the cylinders (53) and (53) attached to the first fixed plate (7). ), A hydraulically driven press cylinder (52) (5) consisting of a rod (54) (54)
It consists of 2).

The second movable member (6) is plate-shaped, and a first male mold (3) is attached to a surface facing the first movable member (5). The second movable member driving means (61) is connected to the second movable member (6) through the cylinders (63) (63) attached to the second fixed plate (8) and the second fixed plate (8). Hydraulically driven first clamp cylinder composed of a set rod (64) and (64)
(62) It consists of (62).

The second male mold (4) is attached to a movable small plate (4a) that reciprocates between the bottom and the opening in the cylindrical recess (5a) of the first movable member (5). And had an outer peripheral shape substantially the same as the inner peripheral shape of the cylindrical female mold (2), and had a length capable of protruding from the cylindrical female mold (2) toward the first male mold (3). It has a torso.

The second male driving means (41) includes a first movable member.
A hydraulically driven second clamp cylinder (42) consisting of a rod (44) connected to a movable small plate (4a) by passing through a cylinder (43) attached to (5) and a first movable member (5). It is configured.

The cylindrical female mold (2), the first male mold (3) and the second male mold (4) are arranged coaxially. In addition, cylindrical female type (2)
The inner peripheral shape of the first male mold (3) is substantially the same as the outer peripheral shape of the first male mold (3), and is formed such that the first male mold (3) can be inserted into the cylindrical female mold (2). The outer shape of the male type (3) is formed so as to match the outer shape of the product to be trimmed.

Further, the leading end of the second male mold (4) and the leading end of the first male mold (3) are fitted to each other in accordance with the unevenness of the product so that the product to be trimmed can be held therebetween. It is formed in an uneven shape. For example, as shown in FIG. 2, a product (11) to be trimmed normally overflows (11b) and a gate (11) with respect to the main body (11a) of the product.
c), the runner (11d) and the biscuit (11e) are connected, but when the main body (11a) has a concave shape as described above, the main body (11a) can be stored and sandwiched. The first male mold (3) and the second male mold (4) are configured as shown in FIG. 3, but may be configured as shown in FIG. 4, for example, depending on the product shape to be trimmed. Is appropriately selected.

In the horizontal trimming press machine (1), the tip shapes of the first male mold (3) and the second male mold (4) are formed depending on the shape of the product (11) to be trimmed and the supporting direction thereof. Press cylinders (52), (52), first clamp cylinders (62), (62) and second clamp cylinders (42).
It is preferable that a position for supporting the product is selected at a position where the drive stroke can be minimized, and the drive stroke of each drive means at that time is set in the control unit.

Next, the horizontal trimming press having the above configuration
The operation of (1) will be described. First, assume that the product (11) to be trimmed is as shown in FIG. 2, and this biscuit (11e) is horizontally trimmed by a chuck (a) such as a take-out machine shown by a dotted line in FIG. It is supported at the predetermined position of 1).

Next, the first clamp cylinders (62) and (62) and the second clamp cylinder (42) are moved close to each other by a predetermined distance, and the first male mold (3) and the second male mold (4) are operated. ) And products (1
Hold the body part (11a) of 1) (see FIG. 5) and release the chuck. In the above-described clamping, portions other than the main body (11a) protrude from the cross-section projected portion of the first male mold (3).

Next, when the press cylinders (52) and (52) are driven to drive the first movable member (5) close to the second movable member (6) by a predetermined distance, the cylindrical female mold (2) is driven. Cuts off the part of the product (11) that is sandwiched from the first male mold (3), and stops slightly overlapping with the tip of the first male mold (3) (see FIG. 6). ). At this time, the cut portion, that is, the overflow (11b), the gate (11c), the runner (11d), and the biscuit (11e) fall.

Next, the first clamp cylinders (61) and (61) are driven to separate from each other, and the first male mold (3) is retracted to the predetermined position (P1). At this time, the product body (11a) in which the pinching state has been released
Is held in the cylindrical female mold (2) with its cut surface engaged with the inner wall of the cylindrical female mold (2) and in contact with the tip of the second male mold (4), and does not drop ( (See FIG. 7).

Next, when the second male cylinder (4) is advanced to the predetermined position (P2) by driving the second clamp cylinder (42) close, the product body (11a) becomes the cylindrical female mold (2). And fall down (see FIG. 8). By the above operation, the product body (1
1a) is overflow (11b), gate (11c), runner
(11d) and the unnecessary portion composed of the biscuit (11e) are separated from each other, and are sorted out due to a shift in the falling timing.

[0029]

According to the present invention, since the trimming is performed with the main body of the product to be trimmed held therebetween,
Unnecessary portions can be dropped together with the trimming, and the time for the trimming step can be reduced. Further, from the above, the drop timing of the removed portion and the drop timing of the main body portion are shifted, so that the sorting can be easily performed.

Since the female mold involved in trimming is configured to be movable, it can be actuated immediately after holding the product, and the time for the trimming step can be reduced. Since both the female type and the male type are configured to be movable, control can be performed so as to be performed with a minimum stroke. In addition, it is necessary to change the female mold and the male mold according to the shape of the product to be trimmed.At this time, if the optimal stroke by each mold is stored according to each product, However, it can be arranged at an appropriate position, and the time for the trimming step can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an example of a horizontal trimming press according to the present invention.

FIG. 2 is a schematic side view of an example of a product to be trimmed;

FIG. 3 is a schematic side view showing an example of the shape of the tip of each of a first male mold and a second male mold.

FIG. 4 is a schematic side view of a main part of another example of the shape of the tip of each of the first male mold and the second male mold.

FIG. 5 is a schematic view of a main part illustrating a relationship between a product, a tubular female mold, a first male mold, and a second male mold in a product clamping state at an initial stage of a trimming operation.

FIG. 6 is a diagram corresponding to FIG. 5 at the time of trimming;

FIG. 7 is a diagram corresponding to FIG. 5 immediately after trimming;

FIG. 8 is a view corresponding to FIG. 5 when the product main body is discharged after trimming.

[Explanation of symbols]

(1) ... horizontal trimming press machine (2) ... cylindrical female type (3) ... first male type (4) ... second male type (4a) ... movable small plate (5) ... first movable member (5a) … Bottomed cylindrical recess (6)… second movable member (7)… first fixed plate (8)… second fixed plate (9)… tie bar (10) press frame (11)… product (11a)… product Main body (11b) ... Overflow (11c) ... Gate (11d) ... Runner (11e) ... Biscuit (41) ... Second male drive means (42) ... Second clamp cylinder (51) ... First movable member drive Means (52) Press cylinder (61) Second movable member drive means (62) First clamp cylinder

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B21D 28/00 B22D 17/20 B22D 31/00

Claims (1)

(57) [Claims] 1. A set of movable members that are arranged facing each other and can approach and separate from each other, a cylindrical female mold provided on a facing surface of one first movable member, and a facing surface of the other second movable member. A first male mold having a cross-sectional shape substantially matching the inner peripheral shape of the cylindrical female mold and being inserted into the cylindrical female mold, and a first male mold capable of protruding and retracting in the cylindrical female mold. 1 A second male type attached to the movable member and capable of holding the product main body in opposition to the first male type, with the product main body being held between the first male type and the second male type. ,
The first male mold is inserted and inserted into the cylindrical female mold to cut and remove unnecessary portions attached to the product main body, and at least immediately after the removal, the product main body is held in the cylindrical female mold. Horizontal trimming press machine.