KR20150095221A - Extrude press molding machine with pusher - Google Patents

Extrude press molding machine with pusher Download PDF

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Publication number
KR20150095221A
KR20150095221A KR1020150101895A KR20150101895A KR20150095221A KR 20150095221 A KR20150095221 A KR 20150095221A KR 1020150101895 A KR1020150101895 A KR 1020150101895A KR 20150101895 A KR20150101895 A KR 20150101895A KR 20150095221 A KR20150095221 A KR 20150095221A
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KR
South Korea
Prior art keywords
billet
container
accommodating portion
stem
pusher
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Application number
KR1020150101895A
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Korean (ko)
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KR101686807B1 (en
Inventor
최선묵
민경호
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(주)선우엔지니어링
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Priority to KR1020150101895A priority Critical patent/KR101686807B1/en
Publication of KR20150095221A publication Critical patent/KR20150095221A/en
Application granted granted Critical
Publication of KR101686807B1 publication Critical patent/KR101686807B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C26/00—Rams or plungers; Discs therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)

Abstract

The present invention relates to an extrusion press apparatus having a billet pusher for simply loading a billet into a container. Since the billet is configured to be loaded into a container using a pushing portion, no separate billet loader device is required, The entire structure is simplified, and the molded product can be continuously produced, thereby improving the productivity.

Description

[0001] EXTRUDE PRESS MOLDING MACHINE WITH PUSHER [0002]

The present invention relates to an extrusion press apparatus having a billet pusher, and more particularly, to an extrusion press apparatus having a billet pusher for simply loading a billet into a container without a separate billet loader apparatus.

Generally, an extrusion apparatus is a device for extruding a raw material put into an apparatus into a front end outlet side having a desired cross-sectional shape and then forcibly extruding the extruded material and passing the die through a die to obtain an extrudate having a desired cross- High production speed, relatively simple aftertreatment, and low cost. Such an extrusion apparatus is mainly used for production of long products having an irregular cross-section with respect to a soft material, although it is mainly used in a temperature condition where the deformation resistance of the material is low, that is, in a hot state and is mainly used for producing a rod or a profile , It is possible to manufacture a cross section of a complicated shape depending on the kind of the alloy and the shape of the mold.

1 and 2 are views showing a conventional extrusion apparatus. 1, a conventional extrusion apparatus 5 includes a container 10 in which a billet B to be a raw material for extrusion is to be loaded, a billet B positioned in a side of the container 10, And a die 30 coupled to the other side of the container 10 to define an extruded shape of the billet B. The stent 20 may be formed by extruding the billet B into the container 10, After the billet B is loaded into the container 10, a ram 22 (FIG. 2) connected to the stem 20 applies pressure to the stem 20 or a separate hydraulic means (not shown) When the pressure is applied to the billet 22, the stem 20 advances to apply the pressure to the billet B, and the billet B passes through the die 30 to extrude the molded product.

2, the conventional extrusion apparatus 5 has a structure in which the positions of the stem 20 and the ram 22 are shown in Fig. 2 (b) before the billet B is loaded into the billet accommodating portion 10a of the container 10 (d) in the direction opposite to the container 10 by the length of the billet B, as shown in Fig. 2 (b), when the billet B is loaded into the container 10, the stem 20 and the ram 22 are moved to the original position, And presses the billet (B).

The conventional extrusion apparatus 5 has to advance or retract the ram 22 every time the billet B is loaded into the container 10 and thus the production speed is slowed down by the movement time of the ram 22. Further, since the space for retreating the stem 20 and the ram 22 by the length of the billet B is secured, there is a problem that the work space occupies a large amount.

In order to solve this problem, Japanese Patent Application No. 10-1049629 discloses an extrusion press device for moving a stem upward in billet supply.

3 is a view showing a conventional extrusion press apparatus. 3, the conventional extrusion press apparatus 50 includes a stem 60 for pushing the billet B into the container 10 (shown in FIG. 2), and a pressing member 60 for pushing the stem 60 toward the container 10 (Not shown). A sliding portion 80 is provided between the ram 70 and the stem 60 so that the stem 60 is moved up and down along the sliding portion 80. 3 (a), when the stem 60 is moved upward, a space is formed below the stem 60, and a billet loader device BL having a complicated structure such as a conveyor belt is provided in the space The billet B located at the top of the bill loader apparatus BL is charged into the billet accommodating section 10a (shown in Fig. 2) of the container 10 by the operation of the bill loader apparatus BL. 3 (b), the billet loader device BL is removed and then the stem 60 is moved downward so that the ram 70 presses the stem 60 into the container 10 Or a separate hydraulic means (not shown) presses the ram 70 and the stem 60 into the container 10.

The conventional extrusion press apparatus 50 has a complicated bill loader device BL for loading the billet B into the container 10, and thus the overall configuration is complicated. In order to load the billet B into the container 10, the billet loader device BL must be mounted below the stem 60 and the billet B is moved to the container 10 The billet loader device BL must be moved back to its original position, so that it takes a long time to install the bill loader device BL and the productivity is lowered. In addition, in order to move the bill loader apparatus BL back to its original position, a separate space must be provided, thereby occupying a lot of work space.

Korean Patent No. 10-1274502 Korean Patent No. 10-1049629

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems of the prior art as described above, and it is an object of the present invention to provide a bill paying apparatus which can easily charge a billet into a container without a complicated bill loader apparatus, And a billet pusher for use in the extrusion press apparatus.

According to an aspect of the present invention, there is provided a bill accepting apparatus comprising: a slide member spaced apart from a container having a bill accepting portion; A stem mounted on one side of the slide member facing the container so as to be slid on the same line as the billet accommodating portion of the container or moved so as not to be positioned on the same line as the billet accommodating portion of the container; A ram for moving the stem positioned on the same line as the billet accommodating portion of the container toward the billet accommodating portion; And a billet pusher provided on the other side of the slide member and advanced in the direction of the billet accommodating portion through the slide member. When the billet is not loaded in the billet accommodating portion, The billet pusher is moved in the direction of the billet accommodating portion to load a billlet positioned in the same line as the billet accommodating portion into the billet accommodating portion and when the billet is loaded into the bill accommodating portion, Wherein the billet pusher is moved backward in a direction opposite to the billet receiving portion, and the stem is slidably moved so as to be positioned on the same line as the billet receiving portion.

The slide member may further include: a support plate spaced from the container; A sliding part slidably moved along one side of the support plate facing the container and coupled with the stem; And a moving means for moving the sliding portion. The present invention also provides an extrusion press apparatus including the billet pusher.

Further, the present invention further provides a pushing device comprising a billet pusher, wherein the pushing device further comprises a guide portion protruding from both sides of the support plate to guide the sliding movement of the sliding portion.

In addition, the moving means may include a moving loader connected to the sliding portion and formed to be long along the moving direction of the sliding portion, and a movable loader connected to the end portion of the moving loader while being supported by the supporting plate, And a moving cylinder for moving the billet pusher.

In addition, a support hole and a sliding hole are formed in the support plate and the sliding portion so as to be positioned in the same line as the billet accommodating portion in a state that the stem is slidably moved so as not to be aligned with the billet accommodating portion, Wherein the billet pusher passes through the support hole and the sliding hole of the slide member and is advanced toward the billet accommodating portion.

The billet pusher includes: a pushing portion that is advanced from the inside of the ram toward the billet accommodating portion while the stem is slidably moved so as not to be in line with the billet accommodating portion; And pushing means for advancing the pushing portion toward the billet accommodating portion. The present invention also provides an extrusion press apparatus including the billet pusher.

The pushing means includes a rack portion formed along a longitudinal direction of the pushing portion and a pinion portion that linearly moves the rack portion while being rotated in a state where the rack portion is engaged with the rack portion. Device.

Further, when the rack portion passes through the slide member, the pinion portion further includes a servo motor positioned inside the slide member to be engaged with the rack portion, and positioned outside the slide member to rotate the pinion portion The present invention also provides an extrusion press apparatus having a billet pusher.

The extrusion press apparatus having the billet pusher according to the present invention is configured to load the billet into the container using the pushing portion, so that there is no need for a separate bill loader device and the whole structure is simplified.

In addition, since the billet can be easily loaded into the container by using the pushing portion without installing a separate bill loader device, the molded product can be continuously produced, and productivity is improved.

In addition, since the pushing portion is configured to be advanced forward in a state of being inserted into the ram, an empty RAM can be utilized, so that the pushing portion does not affect the overall size, .

1 and 2 are views showing a conventional extrusion apparatus.
3 is a view showing a conventional extrusion press apparatus.
FIG. 4 is a view schematically showing a state in which a sliding portion of an extrusion press apparatus having a billet pusher according to a preferred embodiment of the present invention is moved upward by a moving means.
5 is a view schematically showing a state in which a sliding portion of an extrusion press apparatus having a billet pusher according to a preferred embodiment of the present invention is moved downward by a moving means.
FIG. 6 is a schematic view showing a pushing portion of a billet pusher provided in an extrusion press apparatus having a billet pusher according to a preferred embodiment of the present invention, being advanced in a container direction.
7 is a schematic view of a billet pusher provided in an extrusion press apparatus having a billet pusher according to a preferred embodiment of the present invention.
8 is a schematic view for explaining a state in which a billet is loaded into an extrusion press apparatus having a billet pusher according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an extrusion press apparatus having a billiut pusher according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a schematic view illustrating a state in which a sliding portion of an extrusion press apparatus having a billet pusher according to a preferred embodiment of the present invention is moved upward by moving means. FIG. 5 is a cross- And the sliding portion of the extrusion press apparatus having the billet pusher is moved downward by the moving means.

4 and 5, an extrusion press apparatus having a billet pusher according to a preferred embodiment of the present invention is for extrusion molding a billet B as an extrusion material. The extrusion press apparatus includes a container 10 (shown in FIG. 2) A slide member 200, a stem 100, a ram 300, and a billet pusher 400 (see FIG. 6). 2, the billet B is pressed by the stem 100 in a state where the billet B is loaded in the billet receiving portion 10a (see FIG. 2) of the container 10, do. The description of the container 10 and the dice 30 will be omitted herein for the sake of brevity and will not be described in detail below. In the following description, the slide member 200, the stem 100, the ram 300 and the billet pusher 400 Will be described in detail. The term "forward" refers to the direction of movement in the direction of the container 10, and "backward" refers to the direction of movement in the direction opposite to the direction of the container 10, unless otherwise specified below. It should be understood.

The slide member 200 slidably moves the stem 100 in a vertical direction and includes a support plate 210, a sliding portion 220 and a moving means 230, and may further include a fixing portion 225 have. The support plate 210 is formed in a plate shape and is configured such that one surface thereof is spaced apart from the container 10 in a state of facing each other. On both sides of one side of the support plate 210, guide portions 212 are formed in the up and down direction to guide up and down movement of the stem 100 described later. The sliding part 220 is slid along one side of the support plate 210 facing the container 10 while being guided by the guide part 212. The stem 100 is coupled to the sliding portion 220 and the stem 100 is moved up and down as the sliding portion 220 is moved. The fixing part 225 is for fixing the stem 100 to the sliding part 220 and is engaged with the sliding part 220 while covering the end part of the stem 100 coupled with the sliding part 220. The moving means 230 is for moving the sliding portion 220 up and down using hydraulic pressure or the like and includes a moving loader 232 and a moving cylinder 234. [ The moving loader 232 is connected to the lower side of the sliding portion 220 and is formed to be long in the lower portion along the moving direction of the sliding portion 220. The moving cylinder 234 is connected to the lower end of the moving loader 232 and moves the moving loader 232 in the vertical direction while being supported on the lower side of the supporting plate 210 so that the sliding portion 220 is slidably moved . A support portion 215 is formed at a lower side of the support plate 210 so as to protrude downward from the support plate 210. The support plate 215 is supported by the support portion 215, Direction.

The stem 100 is connected to one side of the sliding part 220 facing the container 10 and is slid in the vertical direction along the sliding part 220. The stem 100 may be positioned on the same line as the billet accommodating portion 10a of the container 10 or on the same line as the billet accommodating portion 10a of the container 10 according to the sliding movement of the sliding portion 220 It can be moved above the billet accommodating portion 10a of the container 10 so as not to be positioned. When the billet B is loaded into the billet accommodating portion 10a of the container 10 by the billet pusher 400 described below while being moved above the billet accommodating portion 10a of the container 10, The sliding portion 220 is slid downward and the stem 100 is positioned on the same line as the billet accommodating portion 10a of the container 10. [ This will be described again with reference to FIG.

The ram 300 advances the stem 100 positioned on the same line as the billet accommodating portion 10a of the container 10 to the billet accommodating portion 10a of the container 10, And is connected to the other surface of the sliding part 220 which is the opposite direction of the container 10. The hydraulic fluid pressure acting on the ram 300 and the stem (not shown) 100 to the direction of the container 10 or the ram 300 itself may advance the stem 100 toward the container 10. Since the RAM 300 has a conventional structure, a detailed description thereof will be omitted. When the ram 300 and the stem 100 are advanced in the direction of the container 10, separate guide rails 310 are provided on both sides of the ram 300 in the longitudinal direction, and are guided by the guide rails 310 The ram 300 and the stem 100 can be advanced.

The billet pusher 400 will be described with reference to Figs. 6 and 7. Fig.

FIG. 6 is a schematic view illustrating a pushing portion of a billet pusher provided in an extrusion press apparatus having a billet pusher according to a preferred embodiment of the present invention, being advanced in a container direction, and FIG. 7 is a cross- Fig. 3 is a schematic view showing a billet pusher provided in an extrusion press apparatus having a billet pusher according to a first embodiment of the present invention;

6 and 7, the billet pusher 400 includes a pushing portion 410 and a pushing means 420 for loading the billet B into the billet receiving portion 10a of the container 10 . The pushing portion 410 is formed long along the longitudinal direction and inserted into the ram 300. Here, the inside of the ram 300 is formed long so as to insert the pushing portion 410 therein. The pushing portion 410 moves forward through the slide member 200 in a state in which the stem 100 is slid upward so as not to be positioned on the same line as the billet accommodating portion 10a, A support hole (not shown) and a sliding hole 220a are formed in the support plate 210 and the sliding portion 220, respectively. At this time, the support hole and the sliding hole 220a are located on the same line as the billet accommodating portion 10a.

The pushing means 420 moves the pushing portion 410 forward or backward in the direction of the container 10 in a state where the stem 100 is moved upward and the rack portion 422, the pinion portion 424, A rotation shaft 426, and a driving unit 428. [ The rack portion 422 is like a rack gear and is formed long along the longitudinal direction of the pushing portion 410. The pinion portion 424 is shaped like a pinion gear meshing with the rack gear and is formed in a cylindrical shape and is configured to engage the outer periphery thereof with the rack portion 422. The pinion portion 424 may be configured to engage with the rack portion 422 while being inserted into the support plate 210 of the slide member 200, for example. The rotation shaft 426 serves as a shaft. The rotation shaft 426 is elongated along the longitudinal direction. One end of the rotation shaft 426 is connected to the pinion 424 to rotate the pinion 424. The other end of the rotation shaft 426 supports the support plate 210 And is positioned below the support plate 210. The driving unit 428 is coupled to the other end of the rotating shaft 426 and rotates the rotating shaft 426 to rotate the pinion unit 424 and may be constituted by a step motor or the like. When the driving unit 428 is driven, the rotating shaft 426 and the pinion unit 424 are rotated, and the pinion unit 424 linearly moves the rack unit 422 so that the pushing unit 410 is linearly moved, Or backward. In this case, a control unit (not shown) may be further provided to control the linear motion of the pushing unit 410 by controlling the driving unit 428.

8 is a schematic view for explaining a state in which a billet is loaded into an extrusion press apparatus having a billet pusher according to a preferred embodiment of the present invention.

Referring to FIG. 8A, the moving unit 230 slides the sliding unit 220 upward to load the billet B into the container 10. Then, the stem 100 is moved upward, and a space is provided in the lower portion of the stem 100. And a supply part (not shown) provided with a billet B is located in this space. At this time, the billet (B) is positioned on the same line as the billet accommodating portion 10a of the container 10.

8 (b), the driving portion 428 of the pushing means 420 is operated so that the pinion portion 424 moves the rack portion 422 forward. Then, the pushing portion 410 advances to load the billet B into the billet accommodating portion 10a.

8 (c), the supply portion is removed, and the driving portion 428 of the pushing means 420 is operated to cause the pinion portion 424 to move the rack portion 422 backward. Then, the pushing portion 410 is retracted and inserted into the ram 300. In this state, the moving means 230 slides the sliding portion 220 downward. The stem 100 is moved downward and the stem 100 and the billet accommodating portion 10a of the container 10 are positioned on the same line. The ram 300 and the stem 100 are advanced to apply pressure to the billet B loaded in the billet receiving portion 10a of the container 10 so that the billet B passes through the die 30 The molded product is extruded.

As described above, the present invention is configured to load the billet B into the container 10 by using the pushing portion 410, so there is no need for a separate bill loader device, and the entire structure is simplified. Since the billet B can be easily loaded into the container 10 by using the pushing portion 410 without installing a separate billet loader device, the molded product can be continuously produced, There is an effect to be improved. In addition, since the pushing portion 410 is configured to advance forward in a state of being inserted into the ram 300, it is possible to utilize the inside of the empty ram 300, so that the pushing portion 410 does not affect the overall size. So that it does not take up much of the cost.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. It should be understood that the technical idea belonging to the scope of the claims also belongs to the present invention.

100: Stem 200: Slide member
210: support plate 212:
215: Support part 220: Sliding part
220a: Sliding hole 225:
230: Moving means 232: Moving loader
234: transfer cylinder 300: ram
310: guide rail 400: billet pusher
410: pushing portion 420: pushing means
422: rack portion 424: pinion portion
426: rotating shaft 428:

Claims (8)

A slide member positioned so as to be spaced apart from the container having the bill receiving portion;
A stem mounted on one side of the slide member facing the container so as to be slid on the same line as the billet accommodating portion of the container or moved so as not to be positioned on the same line as the billet accommodating portion of the container;
A ram for moving the stem positioned on the same line as the billet accommodating portion of the container toward the billet accommodating portion; And
And a billet pusher provided on the other side of the slide member, the billet pusher passing through the slide member and being advanced toward the billet accommodating portion,
When the billet is not loaded in the billet accommodating portion, the stem is slid so as not to be aligned with the billet accommodating portion, and the billet pusher is moved in the direction of the billet accommodating portion, The billet is charged into the billet accommodating portion,
Wherein the billet pusher is slid backward in a direction opposite to the billet accommodating portion when the billet is loaded into the bill receiving portion, and the stem is slidably moved so as to be positioned in line with the bill receiving portion. Press device.
The method according to claim 1,
The slide member comprises:
A support plate spaced apart from the container;
A sliding part slidably moved along one side of the support plate facing the container and coupled with the stem; And
And a moving means for moving the sliding portion. ≪ Desc / Clms Page number 19 >
3. The method of claim 2,
Further comprising a guide portion protruding from both sides of the support plate to guide the sliding movement of the sliding portion.
3. The method of claim 2,
The moving means includes a moving loader connected to the sliding portion and formed to be long along the moving direction of the sliding portion, and a moving loader connected to the end portion of the moving loader while being supported by the supporting plate, And a movable cylinder for moving the billet pusher.
3. The method of claim 2,
A support hole and a sliding hole are formed in the support plate and the sliding portion so as to be positioned in the same line as the billet accommodating portion in a state in which the stem is slidably moved so as not to be aligned with the billet accommodating portion,
And the billet pusher is advanced through the support hole and the sliding hole of the slide member toward the billet accommodating portion.
The method according to claim 1,
The billet pusher includes:
A pushing portion that is advanced from the inside of the ram toward the billet accommodating portion in a state in which the stem is slidably moved so as not to be aligned with the billet accommodating portion; And
And a pushing means for advancing the pushing portion toward the billet accommodating portion.
The method according to claim 6,
Wherein the pushing means includes a rack portion formed along the longitudinal direction of the pushing portion and a pinion portion that linearly moves the rack portion while being rotated in an engaged state with the rack portion.
8. The method of claim 7,
Wherein when the rack portion passes through the slide member, the pinion portion is located inside the slide member to engage with the rack portion,
Further comprising a servo motor positioned outside the slide member to rotate the pinion portion. ≪ RTI ID = 0.0 > 11. < / RTI >
KR1020150101895A 2015-07-17 2015-07-17 Extrude press molding machine with pusher KR101686807B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110586679A (en) * 2019-08-27 2019-12-20 考迈托（佛山）挤压科技股份有限公司 Production line with extruder
JP2020138229A (en) * 2019-03-01 2020-09-03 宇部興産機械株式会社 Billet feeding device and billet feeding method
IT202200007028A1 (en) * 2022-04-08 2023-10-08 Danieli Off Mecc EXTRUSION PRESS, PARTICULARLY WITH A SHORT STROKE, FOR THE PRODUCTION OF METAL EXTRUDES BY EXTRUSING A BILLET

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107708883B (en) 2015-06-12 2019-04-16 宇部兴产机械株式会社 Hybrid power type extruder

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Publication number Priority date Publication date Assignee Title
JPH08206727A (en) * 1995-02-03 1996-08-13 Ube Ind Ltd Extruding press
JP2007160335A (en) * 2005-12-12 2007-06-28 Ube Machinery Corporation Ltd Billet feeder
KR101049629B1 (en) 2006-10-16 2011-07-14 우베 고산 기카이 가부시키가이샤 Stem slide device
KR101274502B1 (en) 2011-06-07 2013-06-13 강릉원주대학교산학협력단 asymmetric extracting method, extracted materials fabricated by using the method, dice for asymmetric extraction and asymmetric extraction apparatus

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Publication number Priority date Publication date Assignee Title
JPH08206727A (en) * 1995-02-03 1996-08-13 Ube Ind Ltd Extruding press
JP2007160335A (en) * 2005-12-12 2007-06-28 Ube Machinery Corporation Ltd Billet feeder
KR101049629B1 (en) 2006-10-16 2011-07-14 우베 고산 기카이 가부시키가이샤 Stem slide device
KR101274502B1 (en) 2011-06-07 2013-06-13 강릉원주대학교산학협력단 asymmetric extracting method, extracted materials fabricated by using the method, dice for asymmetric extraction and asymmetric extraction apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020138229A (en) * 2019-03-01 2020-09-03 宇部興産機械株式会社 Billet feeding device and billet feeding method
CN110586679A (en) * 2019-08-27 2019-12-20 考迈托（佛山）挤压科技股份有限公司 Production line with extruder
IT202200007028A1 (en) * 2022-04-08 2023-10-08 Danieli Off Mecc EXTRUSION PRESS, PARTICULARLY WITH A SHORT STROKE, FOR THE PRODUCTION OF METAL EXTRUDES BY EXTRUSING A BILLET
WO2023194845A1 (en) * 2022-04-08 2023-10-12 Danieli & C. Officine Meccaniche S.P.A. Extrusion press, in particular a short stroke extrusion press, for producing metal extrudates by extruding a billet

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