JPH0715109U - Horizontal extrusion press machine - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a horizontal extrusion press machine. A platen 4 fixed to a bed 1 and having an opening 4a for taking out an extruded product, a cylinder frame 6 slidably guided on the bed 1 and having an extruding stem 5 projecting therefrom. A piston rod 3a of a main piston 3 that is fitted in a liquid-tight and slidable manner on a main cylinder 6a formed on the cylinder frame 6 projects from the main cylinder 6a, and a front end portion thereof is fixed to a platen 4. Is arranged between the main cylinder device 2 that moves the plate forward toward the platen 4 at low speed, the container 7, the mold 9, and the platen 4 and the cylinder frame 6, and moves the cylinder frame 6 back and forth at high speed. And a cylinder device 14 for moving the cylinder frame. [Effect] It is possible to supply a press with a light machine body, a small installation space, and a low cost, and it is possible to significantly improve the efficiency of the extrusion press process.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a horizontal extrusion press device, for example, a horizontal extrusion press device used for extruding an aluminum billet or trial pressing an extrusion die.

[0002]

[Prior art]

 A conventional horizontal extrusion press device of this type will be described with reference to FIG. That is, the platen 51 is arranged at one end on the bed 61, the cylinder frame 53 is arranged at the other end, and the platen 51 and the cylinder frame 53 are connected by a plurality of tie rods 54. There is. A main cylinder device 52 is arranged in the center of the cylinder frame 53, and a crosshead 55 is connected to the tip of the main ram 60 of the main cylinder device 52. The crosshead 55 is mounted with the pushing stem 56 and is slidably mounted on the slide guide portion 61 a of the bed 61.

An opening 51a for taking out an extruded product is formed in the platen 51, which is located on an extension of the extrusion stem 56 in the direction of the central axis, and a mold 59 is formed in the opening 51a. The connection is arranged, and the container 57 is arranged in contact with the mold 59. A billet 58 placed on a support base 63 is supplied between the through hole 57 a of the container 57 and the extrusion stem 56.

However, if pressure oil is supplied to the pressure chamber 52a of the main cylinder device 52, the main ram 60, the crosshead 55, and the extrusion stem 56 will integrally project, and the extrusion system 56 will be operated. The pushing force acts on the billet 58. As a result, the billet 58 passes through the through hole 57a of the container 57, is pushed into the mold 59, and is extruded from the opening 51a of the platen 51 in a state of being formed into a predetermined shape by the forward extrusion process. Be done. The pushing reaction force is transmitted from the platen 51 to the cylinder frame 53 via the tie rods 54 and is balanced with the pushing force.

[0005]

[Problems to be solved by the device]

 However, in such a conventional horizontal extrusion press device, the main ram 60 and the cross head 55 are moved so that the billet 58 can be extruded, so that the machine length is long and the number of parts is large. In addition, it is uneconomical because the initial cost is high for extrusion of short material, extrusion of aluminum billet or trial pressing of extrusion die.

[0006]

[Means for Solving the Problems]

 The present invention has been made in view of such a conventional technical problem, and its configuration is a platen 4 fixed to the bed 1 and having an opening 4a for taking out an extruded product, A cylinder frame 6 which is slidably guided on the bed 1 and has an extruding stem 5 protruding behind the opening 4a of the platen 4, and a main cylinder 6a formed on the cylinder frame 6 which is liquid-tight and slidable. Each of the piston rods 3a has a main piston 3 that freely fits therein, and is fixed to the main piston 3 in a liquid-tight manner from the main cylinder 6a, and its front end is fixed to the platen 4. A main cylinder device 2 that moves forward toward the platen 4 at a low speed, a container 7 that is arranged between the extrusion stem 5 and the platen 4, and in which the billet 8 is stored in the through hole 7a, and the platen. For moving the cylinder frame 6 between the platen 4 and the cylinder frame 6 and the mold 9 arranged between the container 7 and the container 7 for moving the cylinder frame 6 back and forth at high speed. And a cylinder device 14, and the opening 4a of the platen 4, the through hole 9a of the mold 9, the through hole 7a of the container 7 and the extruding stem 5 are arranged with their central axes aligned with each other. It is an extrusion press machine.

[0007]

[Action]

 According to such a horizontal extrusion press device, the cylinder frame 6 is advanced at high speed by the cylinder frame moving cylinder device 14 with the through hole 9a of the die 9 aligned with the opening 4a of the platen 4. Then, the tip of the extrusion stem 5 is brought into contact with the billet 15 so that the billet 8 can be pushed into the through hole 7a of the container 7.

After that, pressure oil is supplied to each main cylinder device 2. As a result, the cylinder frame 6 is pushed forward at low speed and high pressure, the billet 8 is pushed into the through hole 7a of the container 7 by the extrusion stem 5, and the mold 9 connected to the through hole 7a is also pushed. It is pushed into the through hole 9a and extrusion molded. The extruded product can be taken out from the opening 4 a of the platen 4. Thus, the required stroke of the cylinder frame 6 and the extrusion stem 5 provided by each main cylinder device 2 may be the length from the position where the extrusion system 5 contacts the billet 8 to the die 9. .

When the extrusion molding is completed in this way, the cylinder frame moving cylinder device 14 is operated while the main cylinder device 2 is drained, and the cylinder frame 6 is slid on the bed 1. While moving backward and return at high speed. The main cylinder unit 2 is also returned by the backward movement of the cylinder frame 6.

[0010]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a horizontal extrusion press apparatus according to an embodiment of the present invention. In the figure, reference numeral 1 indicates a bed. On the bed 1, a platen 4 is fixed at one end and a cylinder frame 6 is slidably arranged at the other end, and the platen 4 and the cylinder frame are slidable. 6 are arranged to face each other in the horizontal direction. On the front surface of the cylinder frame 6, an extruding stem 5 is provided so as to project at the center thereof, and a plurality of extruding stems 5 (four in the illustrated embodiment are arranged vertically and horizontally). Place the main cylinder unit 2. Each main cylinder device 2 is composed of a main cylinder 6a formed in the cylinder frame 6 and a main piston 3 that is fitted in a liquid-tight and slidable manner with the seal member 20 interposed in the main cylinder 6a. The fixed piston rod 3a is liquid-tightly projected forward with the seal member 21 interposed in the main cylinder 6a, and the tip end thereof is fixed to the platen 4.

A pressure chamber 2a defined by the main piston 3 and the piston rod 3a is formed in the front portion of the main cylinder 6a. By supplying pressure oil to the pressure chamber 2a, a cylinder frame is formed. 6 is pushed forward (to the left in the figure) at a low speed.

Further, a cylinder frame moving cylinder device 14 which is paired to the left and right is fixedly provided on the upper end of the platen 4. The tip end of the piston rod 14a of each cylinder frame moving cylinder device 14 is fixed to the upper end of the cylinder frame 6. Then, by causing the piston rod 14a of the cylinder device 14 for moving the cylinder frame to project, the cylinder frame 6 can be returned and moved backward at high speed while sliding on the bed 1, and the piston rod 14a By immersing the cylinder, the cylinder frame 6 can be moved forward at high speed.

As described above, the extruding stem 5 is provided at the center of the cylinder frame 6 and the billet to be extruded is provided between the extruding stem 5 and the opening 4 a of the platen 4. 8, the container 7 and the mold 9 are sequentially arranged. The billet 8 is placed and supplied on a support base 16 arranged on the bed 1. The container 7 has a through hole 7a and is movable back and forth. That is, as shown in FIG. 2, a backward-moving container moving cylinder device 13 is fixedly mounted on the upper part of the platen 4, and the tip end portion of the piston rod 13 a thereof is fixed to the upper end portion of the container 7. . A pair of container moving cylinder devices 13 are provided on the left and right. Then, by supplying pressure oil to one pressure chamber 13b or 13c of the container moving cylinder device 13 and draining the other pressure chamber 13c or 13b, the container 7 is moved left and right in the figure. Can be made. The support base 16 can be fixed to the container 7.

The mold 9 has a through hole 9 a for molding the billet 8 into a predetermined shape, and is detachably mounted on the mold holder 11, and the mold holder 11 is fixed to the bed 1. It is fixed to the upper end portion of the piston rod 12a of one upper and lower cylinder device 12. However, the vertical movement can be given to the mold holder 11 and the mold 9 by the projecting or retracting operation of the vertical cylinder device 12.

Next, the operation of the above embodiment will be described. As shown in FIG. 2, by operating the upper and lower cylinder device 12, the through hole 9a of the mold 9 is aligned with the opening 4a of the platen 4, and the pressure is applied to one pressure chamber 13b of the container moving cylinder device 13. Oil is supplied and the mold 9 is clamped between the container 7 and the platen 4. Then, the billet 8 is placed on the support 16, the cylinder frame 6 is advanced at high speed by the cylinder device 14 for moving the cylinder frame, and the tip of the extruding stem 5 is brought into contact with the billet 8. Of course, the pressure chamber 2a of each main cylinder device 2 is drained.

After that, the pressure oil is forcibly supplied to the pressure chamber 2 a of the main cylinder device 2. As a result, the cylinder frame 6 is pushed leftward at low speed and high pressure in the figure, and the billet 8 on the support 16 is pushed by the pushing stem 5 into the through hole 7a of the container 7. Then, it is pushed into the through hole 9a of the mold 9 connected to the through hole 7a and extrusion molded. The extruded product can be taken out from the opening 4 a of the platen 4. Then, the required stroke L of the cylinder frame 6 and the extrusion stem 5 given by each main cylinder device 2 reaches the mold 9 from the position where the extrusion stem 5 contacts the billet 8 as shown in FIG. Up to L.

In this way, when the extrusion molding is completed, the piston rod 14a of the cylinder device 14 for moving the cylinder frame is caused to project while the pressure chamber 2a of the main cylinder device 2 is drained, and the cylinder frame 6 is moved. While sliding on the bed 1, move backward and return at high speed. The main cylinder device 2 is also returned by the backward movement of the cylinder frame 6. Next, by supplying pressure oil to the other pressure chamber 13c of the container moving cylinder device 13 and draining the one pressure chamber 13b, the container 7 is moved backward, so that the container 7 is moved between the mold 9 and the container 7. An appropriate space is secured, and the raft attached to the surface of the mold 9 is cut by a shear (not shown) to separate the product from the mold 9. By bringing the container 7 into close contact with the mold 9 again, the billet 8 can be extruded.

Then, by operating the upper and lower cylinder device 12, the mold holder 11 and the mold 9 are moved down to a position where they do not interfere with the container 7, and the mold 9 is provided with a through hole 9a having a required shape. Can be exchanged. The replacement work of the mold 9 can also be performed by horizontally moving or rotating the mold 9.

[0019]

[Effect of device]

 As can be understood from the above description, the extrusion press device according to the present invention can achieve the following effects. The extrusion stem is attached directly to the cylinder frame, eliminating the need for the crosshead of conventional horizontal extrusion press equipment.The platen and cylinder frame are the piston rod and cylinder frame of the main cylinder equipment. Since it is connected by the moving cylinder device and the tie rod of the conventional horizontal extrusion press device is not required, the length of the machine can be reduced. As a result, a horizontal extrusion press machine with a light machine body, a small installation space, and a low cost is provided.

Further, in the conventional horizontal extrusion press device, the crosshead is omitted, and not only the extrusion stem is directly projected to the cylinder frame, but also the cylinder frame around the extrusion stem is replaced with the main ram. By arranging multiple main cylinder devices, we reduced the space for excluding the main parts that were located on the center axis of the press. The cylinder frame is moved forward and backward at high speed by the cylinder frame moving cylinder device, and when the billet is pushed into the container, the main cylinder device moves the cylinder frame toward the platen at low speed. By moving the main cylinder device forward, it is possible to reduce the length of the main cylinder device in the central axis direction and to move the main cylinder device at high speed. This allows the aircraft dimensions to be determined without being constrained by the dimensions of the main cylinder. As a result, the machine body becomes compact, the machine body weight becomes lighter, and it is possible to supply a low-cost horizontal extrusion press machine, and it is possible to significantly improve the efficiency of the extrusion press process. Thus, a horizontal extrusion press device suitable for extruding an aluminum billet or trial pressing an extrusion die is provided.

[Brief description of drawings]

FIG. 1 is a sectional view showing an outline of an extrusion press device according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a main part of the same.

FIG. 3 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

1: Bed, 2: Main cylinder device, 3: Main piston, 3
a: piston rod, 4: platen, 4a: opening, 5: extrusion stem, 6: cylinder frame, 6a: main cylinder, 7: container, 7a: through hole, 9: mold, 9a: through hole, 13 : Cylinder device for moving container, 14: Cylinder device for moving cylinder frame.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenji Shibuya No. 4 Chatsu-cho, Muroran-shi, Hokkaido Nikko Tokki Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A platen (4) fixed to a bed (1) and having an opening (4a) for taking out an extruded product.
A cylinder frame (6) slidably guided on the bed (1) and protrudingly provided with an extrusion stem (5) facing the rear of the opening (4a) of the platen (4); Multiple main cylinders (6a) formed in 6)
Has a main piston (3) fitted in a liquid-tight and slidable manner, and each piston rod (3a) fixed to the main piston (3) projects liquid-tight from the main cylinder (6a),
A main cylinder device (2) having a front end fixed to the platen (4) and moving the cylinder frame (6) toward the platen (4) at a low speed, an extrusion stem (5), and a platen ( 4) and the through hole (7
a container (7) in which billet (8) is expropriated in a),
A mold (9) arranged between the platen (4) and the container (7), a platen (4) and a cylinder frame (6)
And a backward movement type cylinder frame moving cylinder device (14) for moving the cylinder frame (6) back and forth at high speed, and the opening (4a) of the platen (4) A horizontal extrusion press machine characterized in that the through hole (9a) of the mold (9), the through hole (7a) of the container (7) and the extrusion stem (5) are arranged with their central axes aligned.