CN219724140U - Fixed die sleeve for quick die change and reverse extruder - Google Patents
Fixed die sleeve for quick die change and reverse extruder Download PDFInfo
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- CN219724140U CN219724140U CN202321353727.9U CN202321353727U CN219724140U CN 219724140 U CN219724140 U CN 219724140U CN 202321353727 U CN202321353727 U CN 202321353727U CN 219724140 U CN219724140 U CN 219724140U
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- 238000001125 extrusion Methods 0.000 claims abstract description 107
- 238000009434 installation Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 235000012438 extruded product Nutrition 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The utility model relates to a fixed die sleeve for quick die change and a reverse extruder, wherein the fixed die sleeve is used for being connected to an extrusion rod, the extrusion rod is provided with a first channel, the fixed die sleeve comprises a die with a second channel and a die sleeve assembly which is provided with a third channel and is connected with the extrusion rod, one end part of the die sleeve assembly is connected with the extrusion rod, the inner side surface of the other end part of the die sleeve assembly is provided with an installation inclined surface along the circumferential direction of the die sleeve assembly, the installation inclined surface is intersected with the axial lead of the die sleeve assembly, the outer side surface of the die is provided with a matching inclined surface which can be matched with the installation inclined surface, the die is inserted into the die sleeve assembly and is matched and abutted with the matching inclined surface, and the inner diameter of the second channel is respectively smaller than the inner diameters of the first channel and the third channel. According to the die sleeve fixing device, when different dies are required to be replaced for different products, the dies can be replaced quickly, the time for removing the die sleeve when the dies are required to be replaced is saved, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of aluminum alloy processing profiles, and particularly relates to a fixed die sleeve for quick die change and a reverse extruder.
Background
Unlike forward extrusion, the ingot casting and the extrusion cylinder do not move relatively during backward extrusion, friction between the ingot casting and the extrusion cylinder is reduced, extrusion pressure is reduced, and the backward extrusion can extrude materials with larger extrusion coefficients at lower temperature and higher extrusion speed. The metal deformation is uniform during backward extrusion, the structure and mechanical properties along the length of the extruded product are basically consistent, and the thickness of the backward extruded product in a coarse-grain environment is reduced compared with that during forward extrusion. Therefore, backward extrusion has a great advantage over forward extrusion in extruding products with high dimensional accuracy, fine structure, no macrocrystalline rings (or shallow macrocrystalline rings), and hard aluminum alloy tubes, rods, wires with narrow extrusion temperature ranges.
In the extrusion process of the reverse extruder, a movable die is adopted for extrusion, and after each extrusion, the movable die is taken out again for trimming, separating residual materials, lubricating and the like, and then the machine is installed for use, so that the workload of operators is increased, the non-extrusion time is prolonged, and the production efficiency is reduced. Meanwhile, for the special-shaped hole die with the position precision requirement, the position of the die on the machine is changed after each extrusion, so that the problems of out-of-tolerance rejection of the product precision and the like are caused. The movable die is adopted by part of the backward extrusion machine, and a manipulator is also required to be equipped for auxiliary operation, so that the equipment cost and the equipment maintenance cost are increased, and the backward extrusion cost is increased.
At present, a fixed die is adopted for extrusion, the die is fixed on a hollow extrusion rod and a die sleeve, and the die does not need to be separated from the hollow extrusion rod or the die sleeve after each extrusion of cast ingots. For example, chinese patent CN107116106a discloses a die fixing structure for backward extrusion and a backward extrusion method, in which a die is fixed on a die sleeve, and the die sleeve is connected with a backward extrusion die shaft, so that the time for fixing the backward extrusion is shortened, and the production efficiency of backward extrusion is improved.
However, in the extrusion process of actual production, products with different specifications are often extruded, dies corresponding to different products are different, the dies are fixed on the die sleeve, after the products with one specification are finished, the die sleeve and the dies are required to be detached together, a new die is installed, the operation difficulty is high in the hotter state of the die sleeve, the die sleeve is installed on an extrusion die shaft, the difficulty is high, the die changing time is increased, and the production efficiency is reduced.
Disclosure of Invention
The utility model aims to solve the technical problems that when the existing fixed die for backward extrusion is used for processing products of different types, the time for replacing the die is long, the replacement difficulty is high and the like, and provides the fixed die sleeve for quickly replacing the die.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a quick die change is with fixed die sleeve, fixed die sleeve is used for connecting on the extrusion pole, the extrusion pole has first passageway, fixed die sleeve is including the mould that has the second passageway, fixed die sleeve still including have the third passageway and with the die sleeve subassembly that the extrusion pole links to each other, one end of die sleeve subassembly with the extrusion pole links to each other, the medial surface of the other end of die sleeve subassembly is followed the circumference of die sleeve subassembly is equipped with the installation inclined plane, the installation inclined plane with the axial lead of die sleeve subassembly is crossing, the lateral surface of mould be equipped with can with installation inclined plane complex cooperation inclined plane, the mould is inserted and is established in the die sleeve subassembly just installation inclined plane and cooperation inclined plane cooperation butt, first passageway, second passageway and third passageway intercommunication, the internal diameter of second passageway is less than respectively the internal diameter of first passageway and third passageway.
In some embodiments, the second channel has an inner diameter that is less than an inner diameter of the third channel, which is less than an inner diameter of the first channel.
In some embodiments, the extrusion stem, the die, and the die sleeve assembly are coaxially disposed.
In some embodiments, the die sleeve assembly is removably coupled to the extrusion stem.
In some embodiments, the inner side of the extrusion rod is recessed outwards to form a plurality of grooves, the grooves are uniformly distributed along the circumferential direction of the extrusion rod, the one end of the die sleeve assembly is outwards protruded to form a plurality of protruding clamping parts, and the protruding clamping parts are clamped in the grooves in a one-to-one correspondence manner;
the inner side surface of the extrusion rod is positioned between two adjacent grooves and is outwards sunken to form avoidance grooves for avoiding the convex clamping parts, each avoidance groove extends along the axial direction of the extrusion rod, and one end part of each avoidance groove is communicated with at least one of the two adjacent grooves.
In some embodiments, the die sleeve assembly comprises a first die sleeve with one end detachably connected with the extrusion rod and a second die sleeve with the first die sleeve detachably connected, the installation inclined plane is arranged on the second die sleeve, and the die is inserted into the second die sleeve.
In some embodiments, an end surface of one end of the second die sleeve is abutted against the extrusion rod, and the other end of the second die sleeve is provided with a convex step protruding outwards along the radial direction of the second die sleeve.
In some embodiments, the outer side surface of the second die sleeve is recessed inwards to form a first positioning groove, the outer side surface of the extrusion rod is recessed inwards to form a second positioning groove corresponding to the position of the first positioning groove, the first positioning groove is communicated with the second positioning groove, and the fixed die sleeve further comprises a positioning block inserted into the first positioning groove and the second positioning groove.
In some specific embodiments, a first positioning hole extending along the radial direction of the second die sleeve is formed in the bottom of the first positioning groove, a second positioning hole extending along the radial direction of the extrusion rod is formed in the bottom of the second positioning groove, positioning column parts are respectively arranged on the positioning block at positions corresponding to the first positioning hole and the second positioning hole, and the positioning column parts are inserted into the first positioning hole and the second positioning hole; and/or the number of the groups of groups,
the outer side surface of the second die sleeve is provided with a plurality of first positioning grooves along the circumferential direction at intervals, and the outer side surface of the extrusion rod is correspondingly provided with a plurality of second positioning grooves.
In some embodiments, the first die sleeve and the second die sleeve are in threaded connection, and gaps are reserved between two ends of the first die sleeve and the second die sleeve, which are positioned at the threaded connection respectively.
The utility model adopts a second technical scheme that: the reverse extruder comprises an extrusion rod, and further comprises a fixed die sleeve detachably connected to the extrusion rod, wherein the fixed die sleeve is the fixed die sleeve for rapid die changing.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
when different dies are required to be replaced according to different products, the dies are separated from the die sleeve assembly by combining the steel pipe with the hammer and knocking, then the different dies are assembled, the die replacement is quick, the die sleeve removing time is saved, and the production efficiency is improved. In addition, the mounting inclined plane is abutted with the matching inclined plane, so that the die is easy to mount and center in the die changing process, and meanwhile, the actual contact area of the die and the die sleeve assembly is increased, and the die is prevented from being taken out in the extrusion process.
Drawings
FIG. 1 is a schematic diagram of a full section of a stationary die sleeve for quick change of a mold according to an exemplary embodiment of the present utility model;
FIG. 2 is a front view of the extrusion stem;
FIG. 3 is a side view of the extrusion stem of FIG. 2;
FIG. 4 is a front view of a first one of the quick change stationary jackets of FIG. 1;
FIG. 5 is a side view of the first sleeve of FIG. 4;
FIG. 6 is a front view of a second one of the quick change stationary jackets of FIG. 1;
FIG. 7 is a side view of the second sleeve of FIG. 6;
in the figure: 1. an extrusion rod; 2. a mold; 3. a die sleeve assembly; 3a, a first die sleeve; 3b, a second die sleeve; 4. a first channel; 5. a second channel; 6. a third channel; 7. a groove; 8. a protruding clamping part; 9. a mounting inclined plane; 10. a raised step; 11. a first positioning groove; 12. a second positioning groove; 13. a first positioning hole; 14. a second positioning hole; 15. an external thread; 16. an internal thread; 17. an avoidance groove; 18. a gap.
Detailed Description
The utility model is further described with reference to the drawings and specific examples in the specification:
the fixed die sleeve for quick die change shown in fig. 1 to 7 is used for a reverse extruder and is connected to an extrusion rod 1, and the extrusion rod 1 has a first passage 4.
The fixed die sleeve comprises a die with a second channel 5 and a die sleeve assembly 3 with a third channel 6, one end part of the die sleeve assembly 3 is detachably connected with an extrusion rod 1, the inner side surface of the other end part of the die sleeve assembly 3 is provided with an installation inclined surface 9 along the circumferential direction of the die sleeve assembly 3, the installation inclined surface 9 is intersected with the axial lead of the die sleeve assembly 3, the outer side surface of the die 2 is provided with a matching inclined surface which can be matched with the installation inclined surface 9, the die 2 is inserted into the die sleeve assembly 3, the installation inclined surface 9 is matched and abutted with the matching inclined surface, the first channel 4, the second channel 5 and the third channel 6 are communicated, and the inner diameter of the second channel 5 is respectively smaller than the inner diameters of the first channel 4 and the third channel 6.
When different dies need to be replaced according to different products, a steel pipe with the pipe diameter larger than the inner diameter of the second channel 5 and smaller than the inner diameter of the first channel 4 and the inner diameter of the third channel 6 is used, one end portion of the steel pipe extends into and is pressed against the end face of the die 2 from a discharge hole of the extrusion rod 1, the other end portion of the steel pipe is knocked by a hammer, the die 2 is separated from the die sleeve assembly 3, and the heated dies with different product models are placed in the die sleeve assembly 3, so that quick die replacement is completed. In addition, the mounting inclined plane 9 is abutted with the matching inclined plane, so that the die is easy to mount and center in the die changing process, and meanwhile, the actual contact area between the die 2 and the die sleeve assembly 3 is increased, and the die is prevented from being carried out in the extrusion process.
In this example, the inner diameter of the second channel 5 is smaller than the inner diameter of the third channel 6, and the inner diameter of the third channel 6 is smaller than the inner diameter of the first channel 4; the extrusion rod 1, the die 2 and the die sleeve component 3 are coaxially arranged.
In this example, the die sleeve assembly 3 includes a first die sleeve 3a with an end detachably connected to the extrusion rod 1 and a second die sleeve 3b detachably connected to the first die sleeve 3a, the installation inclined surface 9 is disposed on the second die sleeve 3b, and the die 2 is inserted into the second die sleeve 3 b. The first die sleeve 3a and the second die sleeve 3b are detachably connected, so that in the extrusion process, the connection part of the first die sleeve 3a and the extrusion rod 1 is broken accidentally, and only the first die sleeve 3a needs to be replaced, so that the material cost is saved.
Referring to fig. 1 to 5, the inner side of the extrusion rod 1 is recessed outwards to form a plurality of grooves 7, the plurality of grooves 7 are uniformly distributed along the circumferential direction of the extrusion rod 1, one end of the first die sleeve 3a is protruded outwards to form a plurality of protruding clamping parts 8, and the protruding clamping parts 8 are clamped in the grooves 7 in a one-to-one correspondence.
The medial surface of extrusion rod 1 is located between two adjacent recesses 7 outwards sunken formation and is used for dodging the groove 17 that dodges of protruding joint portion 8, and each dodges the groove 17 and extend along the axial direction of extrusion rod 1 and set up, and dodges two recesses in two adjacent recesses 7 respectively of one end in groove 17 and be linked together, when extrusion rod 1 and first die sleeve 3a are installed, the protruding joint portion 8 of first die sleeve 3a is followed and dodges the inslot 17 and is slided, then rotatory 45 for protruding joint portion 8 slides in recess 7, fixed first die sleeve 3a and extrusion rod 1.
Referring further to fig. 1, 2 and 6, the end face of one end of the second die sleeve 3b is abutted against the extrusion rod 1, the other end of the second die sleeve 3b is provided with a raised step 10 which is raised outwards along the radial direction of the second die sleeve 3b, in the extrusion process, the raised step 10 is heated and the extrusion force is expanded, and is attached to the inner wall of the extrusion cylinder, so that cast ingots are prevented from entering gaps between the extrusion rod and the extrusion cylinder in the extrusion process, and later cleaning is facilitated.
The outer side surface of the second die sleeve 3b is inwards sunken to form a first positioning groove 11, the outer side surface of the extrusion rod 1 is inwards sunken to form a second positioning groove 12 at a position corresponding to the first positioning groove 11, the first positioning groove 11 is communicated with the second positioning groove 12, and the fixed die sleeve further comprises a positioning block inserted into the first positioning groove 11 and the second positioning groove 12 so as to ensure that the die sleeve assembly 3 cannot rotate in the extrusion process. Specifically, the outer side surface of the second die sleeve 3b is provided with a plurality of first positioning grooves 11 at intervals along the circumferential direction, the outer side surface of the extrusion rod 1 is correspondingly provided with a plurality of second positioning grooves 12, and the first positioning grooves 11 and the second positioning grooves 12 are arranged in one-to-one correspondence.
In order to further ensure that the die sleeve assembly 3 cannot rotate in the extrusion process, a first positioning hole 13 extending along the radial direction of the second die sleeve 3b is formed in the bottom of the first positioning groove 11, a second positioning hole 14 extending along the radial direction of the extrusion rod 1 is formed in the bottom of the second positioning groove 12, positioning column parts are respectively arranged on the positioning blocks at positions corresponding to the first positioning hole 13 and the second positioning hole 14, and the positioning column parts are inserted into the first positioning hole 13 and the second positioning hole 14.
Referring to fig. 1 and 4-7, the first die sleeve 3a and the second die sleeve 3b are in threaded connection, and gaps 18 are reserved at two ends of the first die sleeve 3a and the second die sleeve 3b, which are positioned at the threaded connection, respectively, so that the deformation of threads in the extrusion process is prevented, and the disassembly is difficult. Specifically, the outer side surface of the first die sleeve 3a is provided with an external thread 15 in the circumferential direction thereof, and the inner side surface of the second die sleeve 3b is provided with an internal thread 16 capable of being screwed with the external thread 15.
The fixing die sleeve for quick die change with the arrangement has the following advantages:
1) When the fixed die sleeve is used for die changing, the die can be quickly changed only by adopting a steel pipe and a hammer, so that the time for removing the die sleeve is saved, and the production efficiency is improved.
2) The installation is convenient, and the installation is only needed to be carried out between the extrusion. The assembled die sleeve assembly is clamped in the extrusion rod through the convex clamping part before extrusion, the positioning block is positioned, the steps are few, the operation is convenient, the die sleeve assembly can be extruded until the production is finished, and the die sleeve assembly is not required to be disassembled during middle die replacement.
3) The end of the second die sleeve is provided with a raised step to prevent metal from entering the gap between the extrusion rod and the extrusion cylinder, so that the later cleaning is convenient.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The utility model provides a quick die change is with fixed die sleeve, fixed die sleeve is used for connecting on the extrusion pole, the extrusion pole has first passageway, fixed die sleeve is including the mould that has the second passageway, its characterized in that: the fixed die sleeve further comprises a die sleeve assembly which is provided with a third channel and is connected with the extrusion rod, one end portion of the die sleeve assembly is connected with the extrusion rod, the inner side surface of the other end portion of the die sleeve assembly is provided with an installation inclined surface along the circumferential direction of the die sleeve assembly, the installation inclined surface is intersected with the axial lead of the die sleeve assembly, the outer side surface of the die is provided with a matching inclined surface which can be matched with the installation inclined surface, the die is inserted into the die sleeve assembly and is matched and abutted with the installation inclined surface, the first channel, the second channel and the third channel are communicated, and the inner diameter of the second channel is respectively smaller than the inner diameters of the first channel and the third channel.
2. The fast-changing fixed die sleeve according to claim 1, wherein: the inner diameter of the second channel is smaller than the inner diameter of the third channel, and the inner diameter of the third channel is smaller than the inner diameter of the first channel; and/or the extrusion rod, the die and the die sleeve component are coaxially arranged.
3. The fixed die sleeve for quick die change according to claim 1 or 2, wherein: the die sleeve assembly is detachably connected with the extrusion rod.
4. A fast changing fixed die sleeve according to claim 3, wherein: the inner side surface of the extrusion rod is outwards recessed to form a plurality of grooves, the grooves are uniformly distributed along the circumferential direction of the extrusion rod, one end part of the die sleeve assembly is outwards protruded to form a plurality of protruding clamping parts, and the protruding clamping parts are clamped in the grooves in a one-to-one correspondence manner;
the inner side surface of the extrusion rod is positioned between two adjacent grooves and is outwards sunken to form avoidance grooves for avoiding the convex clamping parts, each avoidance groove extends along the axial direction of the extrusion rod, and one end part of each avoidance groove is communicated with at least one of the two adjacent grooves.
5. A fast changing fixed die sleeve according to claim 3, wherein: the die sleeve assembly comprises a first die sleeve with one end part detachably connected with the extrusion rod and a second die sleeve detachably connected with the first die sleeve, the installation inclined plane is arranged on the second die sleeve, and the die is inserted into the second die sleeve.
6. The fast-changing fixed die sleeve according to claim 5, wherein: the end face of one end part of the second die sleeve is abutted against the extrusion rod, and the other end part of the second die sleeve is provided with a raised step protruding outwards along the radial direction of the second die sleeve.
7. The fast-changing fixed die sleeve as set forth in claim 6, wherein: the outer side surface of the second die sleeve is inwards sunken to form a first positioning groove, the outer side surface of the extrusion rod is inwards sunken to form a second positioning groove corresponding to the position of the first positioning groove, the first positioning groove is communicated with the second positioning groove, and the fixed die sleeve further comprises a positioning block inserted into the first positioning groove and the second positioning groove.
8. The fast-changing fixed die sleeve as set forth in claim 7, wherein: a first positioning hole extending along the radial direction of the second die sleeve is formed in the bottom of the first positioning groove, a second positioning hole extending along the radial direction of the extrusion rod is formed in the bottom of the second positioning groove, positioning column parts are respectively arranged on the positioning block at positions corresponding to the first positioning hole and the second positioning hole, and the positioning column parts are inserted into the first positioning hole and the second positioning hole; and/or the number of the groups of groups,
the outer side surface of the second die sleeve is provided with a plurality of first positioning grooves along the circumferential direction at intervals, and the outer side surface of the extrusion rod is correspondingly provided with a plurality of second positioning grooves.
9. The fast-changing fixed die sleeve as set forth in claim 8, wherein: the first die sleeve is in threaded connection with the second die sleeve, and gaps are reserved at two ends of the threaded connection between the first die sleeve and the second die sleeve respectively.
10. A reverse extruder, includes extrusion stem, its characterized in that: the reverse extruder further comprises a fixed die sleeve detachably connected to the extrusion rod, wherein the fixed die sleeve is the fixed die sleeve for quick die change according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321353727.9U CN219724140U (en) | 2023-05-31 | 2023-05-31 | Fixed die sleeve for quick die change and reverse extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321353727.9U CN219724140U (en) | 2023-05-31 | 2023-05-31 | Fixed die sleeve for quick die change and reverse extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219724140U true CN219724140U (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321353727.9U Active CN219724140U (en) | 2023-05-31 | 2023-05-31 | Fixed die sleeve for quick die change and reverse extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219724140U (en) |
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2023
- 2023-05-31 CN CN202321353727.9U patent/CN219724140U/en active Active
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