JPH0644482Y2 - Mold separating device - Google Patents

Description

[Detailed description of the device] [The purpose of the device]

(Industrial field of application) The present invention provides a die holder, which is an extrusion die after being used for extrusion molding of aluminum or aluminum alloy.
The present invention relates to a mold separating device used for separating a die and a backer. (Prior Art) In extrusion molding of aluminum or aluminum alloy, a die including a die, a die holder, and a backer is assembled as shown in FIG. 2 and set in an extrusion molding apparatus. That is, the die 21 is inserted into the die holder 23 together with the backer 22, and the sub holder 24 and the bolster 25
Are arranged in this order on the die slide 26 to form a die block. This die block is set in an extrusion molding device (not shown), and the billet 27 is inserted and pressed from the left side in the drawing to flow out from the die hole 21a of the die 21 to be molded as an extrusion mold material. Since the mold is exposed to high temperature, high pressure and high frictional force, it is consumed significantly, and it is necessary to separate the mold into a die 21, a backer 22 and a die holder 23 after completion of extrusion molding for repair. . In this case, since the unpressed material is entangled in the die 21 and the backer 22, it is not easy to separate them.Therefore, conventionally, an air chisel has been used, and the die holder 23 of the die removed from the extrusion device is used. First, after the separation, the die 1 and the backer 2 are separated by driving the air chisel claws into the gap at the boundary between the die 21 and the backer 22. (Problems to be solved by the invention) However, the die 21 and the backer by the air chisel
Separation work with No. 22 is extremely labor intensive and inefficient, and in combination with the recent trend toward an increase in the number of separations due to the reduction of small lots, reducing the work load has become an issue. (Object of the Invention) The present invention has been made to solve the above-mentioned problems in the conventional mold separating work, and its purpose is to separate the die and the backer from the die holder and to separate the die and the backer from each other. An object of the present invention is to provide a mold separating device that can perform separation continuously without resorting to manual work, and can significantly reduce the labor of mold separating work.

[Constitution of device]

(Means for Solving the Problem) A mold separating device according to the present invention is an extrusion device including a pusher for extruding the die and the backer in a state where only the die holder in which the die and the backer are fitted is brought into contact with the vertical wall. A fixing mechanism having a mechanism, a clamp for fixing the outer surface of one of the die and the backer separated from the die holder by the pushing mechanism, and a clamp for fixing the other outer surface of the die and the backer together with the fixing mechanism. By relatively moving in a direction away from each other, a structure having a separating mechanism for separating the die and the backer is provided, and the structure of such a mold separating device is for solving the conventional problems. It is characterized by being used as a means. (Operation) The mold separating device according to the present invention is provided with an extruding mechanism, a fixing mechanism,
A structure comprising a separating mechanism, wherein the pushing mechanism includes a vertical wall for abutting the die holder and a pusher for pushing the die and the backer. From the die holder, the fixing mechanism includes a clamp, and the fixing mechanism includes a clamp to fix the outer surface of one of the die and the backer extruded from the die holder. It has a function of fixing the other outer surface and relatively moving in a direction away from the fixing mechanism to separate and separate the die and the backer. Therefore, the mold removed from the extrusion molding apparatus is first separated into the die holder and the die and the backer which are in close contact with each other due to the adhesion of the unpressurized material by the extrusion mechanism of the mold separating apparatus. Next, the die and the backer, one of which is fixed to the fixing mechanism and the other of which is fixed to the separating mechanism, are pulled to each other by the separating mechanism moving in the direction away from the fixing mechanism, and are separated into the die and the backer. It is supposed to be done. Embodiment An embodiment of the present invention will be specifically described below with reference to the drawings. FIGS. 1 (a) and 1 (b) are a plan view and a front view for explaining the structure of an embodiment of the mold separating device according to the present invention. The mold separating device 1 shown in the drawing is a horizontal table 2 The vertical wall 3 is provided at a substantially central position. The vertical wall 3 has an opening 3a through which only a die and a backer can be inserted, and the front side of the vertical wall 3 (the left side in the drawing)
On the horizontal table 2, a mold mounting table 4 for mounting the mold removed from the extrusion device is provided in contact with the front surface of the vertical 3. Further to the front of the vertical wall 3 (on the left side in the figure), the vertical wall 3 is driven by hydraulic pressure to move freely in the left and right directions in the figure.
A pusher 5 that constitutes an extruding mechanism together with the die mounting table 4 is provided. The pusher 5 is fixed to a pusher support wall 6 installed vertically on the horizontal base 2, and the support wall 6 and the vertical wall 3 are connected and reinforced by a support rod 7. On the horizontal base 2 on the back side (right side in the figure) of the vertical wall 3,
A fixed side mounting table 8 for mounting one of the die and the backer separated by pushing out from the die holder is provided, and above the rear surface of the vertical wall 3 is slidably driven in the vertical direction by a hydraulic cylinder 9. A clamp 10 for fixing one of the die and the backer is provided between the fixed-side mounting table 8 and the fixed-side mounting table 8 to form a fixing mechanism. Further, the mold separating device 1 is provided with a hydraulic cylinder 11 on the rear side of the vertical wall 3, that is, on the horizontal base 2 on the right side in the drawing.
Puller 12 driven by the left and right in the figure
Is equipped with. The puller 12 is driven in the vertical direction by a hydraulic cylinder 14 and a puller-side mounting base 13 on which the other side of the dice and backer is mounted, and between the puller-side mounting base 13 and the die and backer. Is provided with a clamp 15 for fixing the other side thereof, and constitutes a separating mechanism together with the hydraulic cylinder 11. The lower part of the puller 12 is
It is adapted to be slidably fitted to a rail 16 laid on the horizontal base 2, and on both sides of the puller 12,
Two wheels 17 are provided so as to sandwich the rail 16 to facilitate horizontal movement of the puller 12. Then, the puller 12 can be advanced to the position of an imaginary line in the figure according to the thickness of the die and the backer. Further, in this embodiment, the mold separating apparatus 1 is provided with pushers 18 and 19 as shown in the upper part of FIG. 1 (a), and presses the separated die and backer from the lateral direction to load them. It is adapted to move from the table 8 and 13 to the horizontal table 2. The following procedure is used to separate the mold into a die, a backer, and a die holder using the mold separating device 1 having the above structure. First, the die including the die 21, the backer 22, and the die holder 23, which has been removed from the extrusion molding apparatus after the completion of extrusion molding, is first placed on the die mounting table 4 of the die separating apparatus 1. Next, as shown in FIG. 3A, the pusher 5 is pushed out, and the arm head 5a of the pusher 5 is brought into contact with the end surface of the die 21 and pushed. On the other hand, the right end surface of the die holder 23 in the drawing is in contact with and regulated by the vertical wall 3, and an opening through which only the die 21 and the backer 22 are inserted is inserted into the vertical wall 3.
Since 3a is provided, only the die 21 and the backer 22 are extruded to the right side of the vertical wall 3 by the push of the pusher 5 and separated from the die holder 23. It should be noted that the die 21 and the backer 22 are in a state of being in close contact with each other due to the remaining unpressed material. The die 21 and the backer 22 that have passed through the opening 3a of the vertical wall 3 are fixed on the fixed side mounting table 8, as shown in FIG. 3 (b).
And by pushing out the hydraulic cylinder 11,
It is placed on the puller-side placing table 13 of the puller 12 that has been advanced in advance according to the dimensions of the die 21 and the backer 22. Next, by operating the hydraulic cylinders 9 and 14 and lowering the clamps 10 and 15, the die 21
The backer 22 and the backer 22 are sandwiched between the mounting tables 8 and 13 and are firmly fixed. Dies fixed by clamps 10 and 15 respectively
As shown in FIG. 3 (c), the 21 and the backer 22 are separated from each other by retracting the hydraulic cylinder 11 and horizontally moving the puller 12 to the right in the figure. Finally, the die 21 and the backer 22 are separated from each other. 22 and separated. After the die 21 and the backer 22 are separated, next, the hydraulic cylinders 9 and 14 are retracted to operate, and the clamp 10
After releasing the fixed state of the die 21 and the backer 22 by raising and 15, the pushers 18 and 19 are extruded to move the pushers 18 and 19 on the mounting tables 8 and 13 as shown in FIG. 3 (b). Dice 21 and backers 22
Is pushed downward in the drawing and moved from the mounting tables 8 and 13 onto the horizontal table 2 to prepare for transportation for repair. In the above embodiment, the die 21 and the backer
Although the system in which 22 is clamped by the clamps 10 and 15 that move in the vertical direction is shown, the system in which it is clamped in the horizontal direction does not hinder the implementation of the present invention.

[Effect of device]

As described above, the mold separating apparatus according to the present invention comprises an extruding mechanism having a pusher for extruding the die and the backer with only the die holder into which the die and the backer are inserted and abutting against the vertical wall. A fixing mechanism including a clamp that fixes one outer surface of the die and the backer separated from the die holder by the extrusion mechanism,
A structure that includes a clamp that fixes the outer surface of the other of the die and the backer and that includes a separation mechanism that separates the die and the backer by moving relative to the fixing mechanism. Therefore, the separation work from the die holder of the die and the backer, and the separation work of the die and the backer in a strongly joined state due to the adhesion of the extrusion residual material can be continuously performed without relying on manual work, It has an excellent effect that the labor in the mold separation work can be greatly reduced, and contributes greatly to the labor saving of the work.

[Brief description of drawings]

1 (a) and 1 (b) are a plan view and a front view, respectively, showing the structure of an embodiment of a mold separating device according to the present invention, and FIG. 2 is a schematic diagram showing the structure of a die block used for extrusion molding. , FIGS. 3 (a) to 3 (d) are shown in FIG. 1 (a),
It is explanatory drawing which shows operation | movement of the metal mold | die separation apparatus shown to (b) one by one. 1 ... Mold separation device, 3 ... Vertical wall (extrusion mechanism), 4 ... Mold mounting table (extrusion mechanism), 5 ... Pusher (extrusion mechanism), 8 ... Fixed side mounting table (fixing mechanism) , 9 …… hydraulic cylinder (fixing mechanism), 10 …… clamp (fixing mechanism), 11,14 …… hydraulic cylinder (separating mechanism), 12 …… puller (separating mechanism), 13 …… puller side mounting table (separating mechanism) Mechanism), 15 ... Clamp (separation mechanism).

Claims (1)

[Scope of utility model registration request] 1. An extruding mechanism having a pusher for extruding the die and the backer in a state where only the die holder having the die and the backer inserted therein is brought into contact with a vertical wall, and the die and the backer separated from the die holder by the extruding mechanism. A fixing mechanism including a clamp that fixes one outer surface of the die and a backer that includes a clamp that fixes the other outer surface of the die and the backer, and moves relative to the fixing mechanism in a direction away from the die. A mold separating device, comprising a separating mechanism for separating a backer.