CN112157132A - Reverse extruder die shaft assembly and disassembling and assembling method thereof - Google Patents
Reverse extruder die shaft assembly and disassembling and assembling method thereof Download PDFInfo
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- CN112157132A CN112157132A CN202010831591.2A CN202010831591A CN112157132A CN 112157132 A CN112157132 A CN 112157132A CN 202010831591 A CN202010831591 A CN 202010831591A CN 112157132 A CN112157132 A CN 112157132A
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- die shaft
- die
- shaft
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- locking ring
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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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/20—Making uncoated products by backward extrusion
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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
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a reverse extruder die shaft assembly and a disassembly and assembly method thereof, wherein the assembly comprises: the die holder comprises a base, a base rear pad, a die shaft locking ring and a die shaft pressing ring, wherein the base is provided with an installation through hole, the base rear pad is arranged at the rear part of the installation through hole, the die shaft locking ring is arranged in the installation through hole, a positioning bulge is arranged on the inner side surface of the die shaft locking ring along the circumferential direction, a positioning groove which can be connected with the positioning bulge in a matched mode is arranged on the outer side surface of the installation end of the reverse die shaft along the circumferential direction, the installation end of the reverse die shaft is located between the die shaft locking ring and the base rear pad, an open slot is formed in the end surface, opposite to the die shaft locking ring, of the base, the die shaft pressing ring is arranged on the front part of the installation through hole. The die shaft assembly of the reverse extruder and the disassembling and assembling method thereof can reduce the operation difficulty during replacing the reverse die shaft, save the time for replacing the die shaft and improve the production efficiency of the extruder.
Description
Technical Field
The invention relates to the technical field of reverse extruders, in particular to a die shaft assembly of a reverse extruder and a disassembling and assembling method thereof.
Background
Extruders are used to produce a variety of pipes and strands, including forward and reverse extruders. The forward extruder is greatly influenced by friction force in the running process, the flow of a deformation area of the spindle is uneven, the performance of an extruded product is poor, the yield is low, and parts of the extruder are easily abraded; the reverse extruder has higher product quality and yield due to lower frictional resistance and more uniform flow in the deformation zone. For this reason, the production of rods, wires and pipes is currently carried out extensively using reverse extruders.
FIG. 1 is a schematic view of a prior art die shaft assembly of a reverse extruder, and FIG. 2 is a schematic view of the die shaft assembly of FIG. 1 in a disassembled state; as shown in fig. 1-2, a prior art counter-extruder die shaft assembly comprises: the reverse die shaft is installed on the die holder through the limiting and fixing effects of the die shaft gland and the rear cushion. Based on the structure of the existing die shaft assembly of the reverse extruder, when the die shaft needs to be replaced, the rear pad installed at the rear part of the die holder needs to be detached firstly, the die shaft is pulled out from the rear part of the die holder by using a crane, then a new die shaft is installed from the rear part of the die holder by using the crane, and after the new die shaft is installed in the die holder, the rear pad is fixed at the rear part of the die holder, so that the replacement of the die shaft is completed.
Because the length of the mould axle of reverse extruder is great, when adopting current mould axle subassembly, need take out the mould axle from the die holder rear portion when carrying out the mould axle and changing, the mould axle dismouting is comparatively troublesome, and the operation degree of difficulty is big, and required dismouting is long, seriously influences production efficiency.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a die shaft assembly of a reverse extruder and a disassembling and assembling method thereof.
To this end, the present invention discloses a die shaft assembly of a reverse extruder, comprising: a die holder and a reverse die shaft;
the die holder comprises a base, a base rear pad, a die shaft locking ring and a die shaft pressing ring, wherein the base is provided with an installation through hole, the base rear pad is detachably installed at the rear part of the installation through hole, the die shaft locking ring is installed in the installation through hole, a positioning bulge is arranged on the inner side surface of the die shaft locking ring along the circumferential direction, a positioning groove which can be connected with the positioning bulge in a matched mode is arranged on the outer side surface of the installation end of the reverse die shaft along the circumferential direction, when the reverse die shaft is installed in the installation through hole, the installation end of the reverse die shaft is positioned between the die shaft locking ring and the base rear pad, the positioning bulge and the positioning groove are mutually staggered, an open groove is arranged on the end surface, opposite to the die shaft locking ring, of the die shaft pressing ring is detachably installed at the front part of the installation through hole, and the inner diameter of the die shaft pressing ring is, the die shaft clamping ring is used for fixing the die shaft locking ring and the reverse die shaft on the base.
In some optional embodiments, the die holder further includes a die shaft limiting ring, the die shaft limiting ring is detachably mounted between the inner side surface of the mounting through hole and the outer side surface of the reverse die shaft mounting end, a first key groove is axially formed in the inner side surface of the die shaft limiting ring, a first limiting key is detachably mounted on the first key groove, the first limiting key is matched with the positioning groove in the reverse die shaft, and the first limiting key can limit rotation of the reverse die shaft when the die shaft limiting ring is mounted on the outer side surface of the reverse die shaft mounting end.
In some optional embodiments, the first limit key is detachably mounted on the first key groove of the die shaft limit ring by a fastening screw.
In some optional embodiments, a second key groove is axially formed in an outer side surface of the die shaft limiting ring, and a second limiting key matched with the second key groove is arranged on an inner side surface of the mounting through hole of the base.
In some optional embodiments, a spring mounting hole is formed on an end surface of the mold shaft limiting ring facing the mold shaft locking ring, and a spring is detachably mounted in the spring mounting hole.
In some optional embodiments, the positioning protrusions include a plurality of positioning protrusions evenly distributed along the circumferential direction of the mold shaft locking ring, the positioning grooves include a plurality of positioning grooves evenly distributed along the circumferential direction of the mounting end of the reverse mold shaft, and the mold shaft locking ring and the mounting end of the reverse mold shaft can be coupled to form a spline structure.
In some optional embodiments, a first rotary wrench is mounted on an outer side surface of the mold shaft locking ring, and one end of the first rotary wrench is mounted on the mold shaft locking ring, and the other end of the first rotary wrench penetrates out of the base through the opening groove.
In some alternative embodiments, a second rotary wrench is mounted on the outer end face of the mold shaft pressing ring.
In some optional embodiments, the die shaft pressing ring is detachably mounted in front of the mounting through hole of the base in a bolt connection manner.
In addition, the invention also discloses a method for disassembling and assembling the die shaft assembly of the reverse extruder, which comprises the following steps:
loosening the mold shaft pressing ring to pull the mold shaft pressing ring and the mold shaft locking ring apart for setting a gap;
rotating the locking ring of the mold shaft to ensure that the positioning bulge of the locking ring of the mold shaft is opposite to the positioning groove of the reverse mold shaft;
extracting the old reverse mold shaft from the front of the base;
inserting a new reverse mold shaft from the front part of the base, and keeping the positioning groove of the reverse mold shaft opposite to the positioning bulge of the mold shaft locking ring in the inserting process;
rotating the locking ring of the mold shaft to make the positioning lug of the locking ring of the mold shaft and the positioning notch of the reverse mold shaft staggered;
and locking the mold shaft pressure ring, and pressing the mold shaft locking ring and the reverse mold shaft on the base.
The technical scheme of the invention has the following main advantages:
according to the die shaft assembly and the disassembly and assembly method of the reverse extruder, the die shaft locking ring and the die shaft pressing ring are arranged, the structure of the installation end of the reverse die shaft is improved, the die shaft locking ring and the die shaft pressing ring are used for installing the reverse die shaft on the base of the die holder, the operation difficulty in replacing the reverse die shaft can be reduced, the time for replacing the die shaft is saved, and therefore the production efficiency of the extruder is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a prior art die shaft assembly of a reverse extruder;
FIG. 2 is a schematic structural view of the mold shaft assembly shown in FIG. 1 in a disassembled state;
FIG. 3 is a sectional view of the mold shaft assembly shown in FIG. 1 in a disassembled state;
FIG. 4 is a schematic view of a die shaft assembly of a reverse extruder in accordance with one embodiment of the present invention;
FIG. 5 is a schematic view of the die shaft assembly of the reverse extruder shown in FIG. 4 in a disassembled state;
FIG. 6 is a schematic view of the die shaft assembly of the reverse extruder shown in FIG. 4 in another disassembled state.
Description of reference numerals:
1-die holder, 11-base, 111-mounting through hole, 112-second limit key, 12-base rear pad, 13-die shaft locking ring, 14-die shaft pressing ring, 15-die shaft limit ring, 151-spring mounting hole, 2-reverse die shaft, 3-first rotary wrench, 4-second rotary wrench and 5-first limit key.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 4-6, an embodiment of the present invention provides a die shaft assembly of a reverse extruder, the die shaft assembly comprising: a die holder 1 and a reverse die shaft 2; the die holder 1 comprises a base 11, a base rear pad 12, a die shaft locking ring 13 and a die shaft pressing ring 14, wherein the base 11 is provided with an installation through hole 111, the base rear pad 12 is detachably installed at the rear part of the installation through hole 111, the die shaft locking ring 13 is installed in the installation through hole 111, the inner side surface of the die shaft locking ring 13 is circumferentially provided with a positioning bulge, the outer side surface of the installation end of the reverse die shaft 2 is circumferentially provided with a positioning groove capable of being in matched connection with the positioning bulge, when the reverse die shaft 2 is installed in the installation through hole 111, the installation end of the reverse die shaft 2 is positioned between the die shaft locking ring 13 and the base rear pad 12, the positioning bulge and the positioning groove are mutually staggered, the end surface of the base 11, which is just opposite to the die shaft locking ring 13, is provided with an open groove, the die shaft pressing ring 14 is detachably installed at the front part, the mold shaft clamping ring 14 is used to fix the mold shaft clamping ring 13 and the reverse mold shaft 2 to the base 11.
The working principle of the die shaft assembly of the reverse extruder provided by one embodiment of the invention is specifically explained as follows:
specifically, when the reverse die shaft assembly of the reverse extruder is used and the reverse die shaft 2 needs to be replaced, the connection between the die shaft pressing ring 14 and the base 11 is firstly loosened, the die shaft pressing ring 14 is moved, a certain gap is formed between the die shaft pressing ring 14 and the die shaft locking ring 13, then the die shaft locking ring 13 is rotated through an open slot on the base 11, the positioning protrusions of the die shaft locking ring 13 and the positioning grooves of the reverse die shaft 2 are converted from being staggered to being opposite to each other, and the old reverse die shaft 2 is pulled out from the front part of the base 11 by using a hoisting device; after the old reverse mold shaft 2 is removed, a new reverse mold shaft 2 is inserted from the front part of the base 11 by using hoisting equipment, and the positioning groove of the reverse mold shaft 2 is kept opposite to the positioning bulge of the mold shaft locking ring 13 in the inserting process; after the new reverse mold shaft 2 is installed in the base 11, the mold shaft locking ring 13 is rotated through the open slot on the base 11, so that the positioning protrusion of the mold shaft locking ring 13 and the positioning groove of the reverse mold shaft 2 are changed from being opposite to each other to be staggered with each other, the mold shaft pressing ring 14 is locked, the mold shaft locking ring 13 and the reverse mold shaft 2 are tightly pressed on the base 11, and the replacement of the reverse mold shaft 2 is completed.
Further, as shown in fig. 4-6, in an embodiment of the present invention, the die holder 1 further includes a die shaft limiting ring 15, the die shaft limiting ring 15 is detachably installed between the inner side surface of the installation through hole 111 and the outer side surface of the installation end of the reverse die shaft 2, a first key groove is axially formed on the inner side surface of the die shaft limiting ring 15, a first limiting key 5 is detachably installed on the first key groove, the first limiting key 5 is matched with the positioning groove on the reverse die shaft 2, and when the die shaft limiting ring 15 is installed on the outer side surface of the installation end of the reverse die shaft 2, the first limiting key 5 can limit the rotation of the reverse die shaft 2.
With the arrangement, the position of the reverse mold shaft 2 can be further limited by the mold shaft limiting ring 15 and the first limiting key 5, so that the connection strength of the reverse mold shaft 2 is improved; utilize first spacing key 5 to the limiting displacement of reverse mould axle 2 simultaneously, can reduce the machining precision of this mould axle subassembly, eliminate assembly error and machining error and to reverse mould axle 2's installation influence, guarantee in certain assembly error and machining error within range, reverse mould axle 2 still can stabilize on base 11.
Alternatively, the first limit key 5 is detachably mounted on the first key groove of the die shaft limit ring 15 by a fastening screw.
So set up, utilize fastening screw's locking effect, can install first spacing key 5 on the first keyway of mould axle spacing ring 15, the dismouting of the first spacing key 5 of being convenient for simultaneously.
Further, as shown in fig. 4 to 6, in an embodiment of the present invention, a second key groove is axially formed on an outer side surface of the die shaft retainer ring 15, a second retainer key 112 matched with the second key groove is disposed on an inner side surface of the mounting through hole 111 of the base 11, and when the die shaft retainer ring 15 is mounted on the inner side surface of the mounting through hole 111 of the base 11, the second retainer key 112 can limit the rotation of the die shaft retainer ring 15.
With the arrangement, the position of the die shaft limiting ring 15 can be further limited by the second limiting key 112, so that the connection strength of the die shaft limiting ring 15 and the reverse die shaft 2 is improved; meanwhile, the machining precision of the die shaft assembly can be reduced, the installation influence of assembly errors and machining errors on the reverse die shaft 2 is eliminated, and the reverse die shaft 2 can still be stably fixed on the base 11 within a certain assembly error and machining error range.
As shown in fig. 5, in an embodiment of the present invention, a spring mounting hole 151 is formed on an end surface of the mold shaft stopper ring 15 facing the mold shaft locking ring 13, and a spring is detachably mounted in the spring mounting hole 151.
Wherein the spring is in a compressed state when the spring is fully retracted into the spring mounting hole 151.
With the arrangement, when the reverse mold shaft 2 needs to be disassembled and assembled, when the mold shaft pressing ring 14 is loosened to enable the mold shaft pressing ring 14 and the mold shaft locking ring 13 to be separated by a set gap, the mold shaft locking ring 13 can be released from contact with the mold shaft limiting ring 15 under the action of the elastic force of the spring, and the mold shaft locking ring 13 is convenient to rotate in the subsequent operation.
Optionally, the number of the spring mounting holes 151 is two, and the two spring mounting holes 151 are symmetrically arranged on the end surface of the die shaft limiting ring 15.
Of course, the spring mounting hole 151 may include three or more holes as long as the above-described function can be achieved.
Optionally, as shown in fig. 5, in an embodiment of the present invention, the positioning protrusions include a plurality of positioning protrusions, the plurality of positioning protrusions are uniformly distributed along a circumferential direction of the mold shaft locking ring 13, the plurality of positioning grooves include a plurality of positioning grooves, the plurality of positioning grooves are uniformly distributed along a circumferential direction of the mounting end of the reverse mold shaft 2, and the mold shaft locking ring 13 and the mounting end of the reverse mold shaft 2 can be coupled to form a spline structure.
So set up, can improve the location locking effect of mould axle locking ring 13 to reverse mould axle 2, improve reverse mould axle 2's joint strength.
Further, as shown in fig. 4-6, in an embodiment of the present invention, a first rotary wrench 3 is installed on an outer side surface of the mold shaft locking ring 13, and one end of the first rotary wrench 3 is installed on the mold shaft locking ring 13, and the other end thereof penetrates through the base 11 through the open slot.
So set up, when needs rotate mould axle locking ring 13 with the relative position relation of adjustment mould axle locking ring 13 and reverse mould axle 2, the accessible rotates first rotary wrench 3 and realizes the rotation of mould axle locking ring 13, can be convenient for this mould axle subassembly's dismouting operation, improves dismouting efficiency effectively.
Optionally, as shown in fig. 5, in an embodiment of the present invention, a second rotary wrench 4 is mounted on the outer end surface of the die axle pressing ring 14.
So set up, when needs remove mould axle clamping ring 14 so that mould axle clamping ring 14 and mould axle locking ring 13 pull open certain clearance, usable second rotary wrench 4 realizes the removal of mould axle clamping ring 14, can be convenient for this mould axle subassembly's dismouting operation, improves dismouting efficiency effectively.
In an embodiment of the present invention, the base back pad 12 is detachably mounted to the rear of the mounting through hole 111 of the base 11, and the mold shaft pressing ring 14 is detachably mounted to the front of the mounting through hole 111 of the base 11. As an example, the die shaft pressing ring 14 is detachably mounted in front of the mounting through hole 111 of the base 11 by bolting, and the base rear pad 12 is also detachably mounted in rear of the mounting through hole 111 of the base 11 by bolting.
An embodiment of the present invention further provides a method for disassembling and assembling a die shaft assembly of a reverse extruder, where the method includes the following steps:
loosening the mold shaft pressing ring 14 to enable the mold shaft pressing ring 14 and the mold shaft locking ring 13 to be separated by a set gap;
rotating the locking ring 13 of the mold shaft to ensure that the positioning bulge of the locking ring 13 of the mold shaft is opposite to the positioning groove of the reverse mold shaft 2;
extracting the old reverse mold shaft 2 from the front of the base 11;
inserting a new reverse mold shaft 2 from the front part of the base 11, and keeping the positioning groove of the reverse mold shaft 2 opposite to the positioning bulge of the mold shaft locking ring 13 in the inserting process;
rotating the locking ring 13 of the mold shaft to make the positioning protrusion of the locking ring 13 of the mold shaft and the positioning groove of the reverse mold shaft 2 alternate with each other;
and locking the mold shaft pressing ring 14, and pressing the mold shaft locking ring 13 and the reverse mold shaft 2 on the base 11.
Specifically, when the reverse mold shaft 2 needs to be replaced, the connection between the mold shaft pressing ring 14 and the base 11 is firstly loosened, the mold shaft pressing ring 14 is moved, a certain gap is formed between the mold shaft pressing ring 14 and the mold shaft locking ring 13, then the mold shaft locking ring 13 is rotated through the open slot on the base 11, the positioning protrusion of the mold shaft locking ring 13 and the positioning groove of the reverse mold shaft 2 are changed from being staggered to being opposite to each other, and the old reverse mold shaft 2 is pulled out from the front part of the base 11 by using a hoisting device; after the old reverse mold shaft 2 is removed, a new reverse mold shaft 2 is inserted from the front part of the base 11 by using hoisting equipment, and the positioning groove of the reverse mold shaft 2 is kept opposite to the positioning bulge of the mold shaft locking ring 13 in the inserting process; after the new reverse mold shaft 2 is installed in the base 11, the mold shaft locking ring 13 is rotated through the open slot on the base 11, so that the positioning protrusion of the mold shaft locking ring 13 and the positioning groove of the reverse mold shaft 2 are changed from being opposite to each other to be staggered with each other, the mold shaft pressing ring 14 is locked, the mold shaft locking ring 13 and the reverse mold shaft 2 are tightly pressed on the base 11, and the replacement of the reverse mold shaft 2 is completed.
The set gap can be selected according to the actual structure of the reverse extruder, as long as the rotation of the locking ring 13 of the mold shaft can be facilitated to adjust the relative position relationship between the locking ring 13 of the mold shaft and the reverse mold shaft 2.
It can be seen that the die shaft assembly of the reverse extruder and the dismounting method thereof provided by the embodiment of the invention improve the structure of the mounting end of the reverse die shaft 2 by arranging the die shaft locking ring 13 and the die shaft pressing ring 14, and the reverse die shaft 2 is mounted on the base 11 of the die holder 1 by using the die shaft locking ring 13 and the die shaft pressing ring 14, so that the operation difficulty in replacing the reverse die shaft 2 can be reduced, the time for replacing the die shaft can be saved, and the production efficiency of the extruder can be improved.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A reverse extruder die shaft assembly, comprising: a die holder (1) and a reverse die shaft (2);
the die holder (1) comprises a base (11), a base rear pad (12), a die shaft locking ring (13) and a die shaft pressing ring (14), wherein an installation through hole (111) is formed in the base (11), the base rear pad (12) is detachably installed at the rear part of the installation through hole (111), the die shaft locking ring (13) is installed in the installation through hole (111), a positioning bulge is arranged on the inner side surface of the die shaft locking ring (13) along the circumferential direction, a positioning groove capable of being in matched connection with the positioning bulge is arranged on the outer side surface of the installation end of the reverse die shaft (2) along the circumferential direction, when the reverse die shaft (2) is installed in the installation through hole (111), the installation end of the reverse die shaft (2) is positioned between the die shaft locking ring (13) and the base rear pad (12), and the positioning bulge and the positioning groove are mutually staggered, the die shaft locking ring structure is characterized in that an open slot is formed in the end face, right opposite to the die shaft locking ring (13), of the base (11), the die shaft pressing ring (14) is detachably installed on the front portion of the installation through hole (111), the inner diameter of the die shaft pressing ring (14) is larger than the maximum outer diameter of the installation end of the reverse die shaft (2), and the die shaft pressing ring (14) is used for fixing the die shaft locking ring (13) and the reverse die shaft (2) on the base (11).
2. The backward extrusion die shaft assembly of claim 1, wherein the die holder (1) further comprises a die shaft limiting ring (15), the die shaft limiting ring (15) is detachably mounted between the inner side surface of the mounting through hole (111) and the outer side surface of the mounting end of the backward die shaft (2), a first key groove is axially formed in the inner side surface of the die shaft limiting ring (15), a first limiting key (5) is detachably mounted on the first key groove, the first limiting key (5) is matched with the positioning groove in the backward die shaft (2), and the first limiting key (5) can limit the rotation of the backward die shaft (2) when the die shaft limiting ring (15) is mounted on the outer side surface of the mounting end of the backward die shaft (2).
3. A backward extruder die shaft assembly according to claim 2, characterized in that the first limit key (5) is detachably mounted on the first keyway of the die shaft limit ring (15) by means of a fastening screw.
4. The backward extrusion die shaft assembly according to claim 2, wherein a second key groove is axially formed on the outer side surface of the die shaft limiting ring (15), and a second limiting key (112) matched with the second key groove is arranged on the inner side surface of the mounting through hole (111) of the base (11).
5. The die shaft assembly of the reverse extruder as claimed in claim 2, wherein a spring mounting hole (151) is formed in an end surface of the die shaft limiting ring (15) facing the die shaft locking ring (13), and a spring is detachably mounted in the spring mounting hole (151).
6. The die shaft assembly of the reverse extruder according to claim 1 or 2, wherein the positioning protrusions comprise a plurality of positioning protrusions uniformly distributed along a circumferential direction of the die shaft locking ring (13), the positioning grooves comprise a plurality of positioning grooves uniformly distributed along a circumferential direction of the mounting end of the reverse die shaft (2), and the die shaft locking ring (13) and the mounting end of the reverse die shaft (2) can be coupled to form a spline structure.
7. The die shaft assembly of the reverse extruder according to claim 1 or 2, wherein a first rotary wrench (3) is installed on the outer side surface of the die shaft locking ring (13), one end of the first rotary wrench (3) is installed on the die shaft locking ring (13), and the other end of the first rotary wrench penetrates out of the base (11) through the open slot.
8. A reverse extruder die shaft assembly according to claim 1 or 2, characterized in that the outer end face of the die shaft clamping ring (14) is provided with a second rotary wrench (4).
9. The reverse extruder die shaft assembly according to claim 1 or 2, characterized in that the die shaft clamping ring (14) is detachably mounted in front of the mounting through hole (111) of the base (11) by means of bolting.
10. A method of assembling and disassembling a die assembly of a backward extrusion press according to any one of claims 1 to 9, comprising:
loosening the mold shaft pressing ring (14) to enable the mold shaft pressing ring (14) and the mold shaft locking ring (13) to be separated by a set gap;
rotating the mold shaft locking ring (13) to ensure that the positioning bulge of the mold shaft locking ring (13) is opposite to the positioning groove of the reverse mold shaft (2);
extracting the old reverse mold shaft (2) from the front part of the base (11);
inserting a new reverse mold shaft (2) from the front part of the base (11), and keeping the positioning groove of the reverse mold shaft (2) opposite to the positioning bulge of the mold shaft locking ring (13) in the inserting process;
rotating the mold shaft locking ring (13) to enable the positioning bulge of the mold shaft locking ring (13) and the positioning groove of the reverse mold shaft (2) to be staggered mutually;
and the mold shaft locking ring (13) and the reverse mold shaft (2) are tightly pressed on the base (11) by the mold shaft locking ring (14) which is locked.
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5945022A (en) * | 1982-09-06 | 1984-03-13 | Yoshida Kogyo Kk <Ykk> | Die attaching and detaching device of indirect extrusion press |
CN201921903U (en) * | 2010-12-28 | 2011-08-10 | 中国第一重型机械股份公司 | Fixed connection device for double-acting forward extrusion hollow extrusion cushion |
CN103252375A (en) * | 2013-05-30 | 2013-08-21 | 太原重工股份有限公司 | Fixing device for extrusion rod of extruding machine |
CN103272872A (en) * | 2013-05-30 | 2013-09-04 | 太原重工股份有限公司 | Automatic replacing device of extrusion rod of extruding machine |
CN203955752U (en) * | 2014-06-09 | 2014-11-26 | 石家庄百山机械设备有限公司 | A kind of pressure ram fixed mechanism |
CN110280615A (en) * | 2019-07-19 | 2019-09-27 | 中国重型机械研究院股份公司 | A kind of extruding axis quick-replaceable and locking device and method |
CN110961479A (en) * | 2019-11-18 | 2020-04-07 | 太重(天津)滨海重型机械有限公司 | Self-expanding die for reverse extruder and method of assembling same |
-
2020
- 2020-08-18 CN CN202010831591.2A patent/CN112157132A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5945022A (en) * | 1982-09-06 | 1984-03-13 | Yoshida Kogyo Kk <Ykk> | Die attaching and detaching device of indirect extrusion press |
CN201921903U (en) * | 2010-12-28 | 2011-08-10 | 中国第一重型机械股份公司 | Fixed connection device for double-acting forward extrusion hollow extrusion cushion |
CN103252375A (en) * | 2013-05-30 | 2013-08-21 | 太原重工股份有限公司 | Fixing device for extrusion rod of extruding machine |
CN103272872A (en) * | 2013-05-30 | 2013-09-04 | 太原重工股份有限公司 | Automatic replacing device of extrusion rod of extruding machine |
CN203955752U (en) * | 2014-06-09 | 2014-11-26 | 石家庄百山机械设备有限公司 | A kind of pressure ram fixed mechanism |
CN110280615A (en) * | 2019-07-19 | 2019-09-27 | 中国重型机械研究院股份公司 | A kind of extruding axis quick-replaceable and locking device and method |
CN110961479A (en) * | 2019-11-18 | 2020-04-07 | 太重(天津)滨海重型机械有限公司 | Self-expanding die for reverse extruder and method of assembling same |
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