Aluminum alloy pipe extrusion device
By designing an adjustable aluminum alloy pipe extrusion device, using structures such as die seats, extrusion components and adjustment components, the problem that existing devices cannot flexibly adjust the pipe size, achieving high flexibility and continuous output effects.
Patent Information
- Application Number
- CN202510372862.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-05-30
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing aluminum alloy pipe extrusion device has a fixed structure, so it is impossible to flexibly adjust the outer diameter and inner diameter of the output pipe, resulting in low use flexibility.
An aluminum alloy pipe extrusion device is designed, and the adjustment of the shape of the molded channel and the continuous extrusion of the material are achieved through the combination of a die seat, an extrusion assembly, an extrusion cylinder group, an adjustment assembly, an outer guide tube and an inner guide rod.
The device can adjust the inner diameter and outer diameter of the molding channel according to the requirements, ensuring the continuous output and undeformation of the aluminum alloy pipe, and improving the flexibility of use and easy operation.
Smart Images
Figure CN120055065A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of extrusion devices, and more particularly to an extrusion device for aluminum alloy pipes. Background Art
[0002] Due to different production processes, aluminum alloy pipes can be divided into seamless pipes and welded pipes. Mainly because of the different molds used, the shapes of the produced aluminum alloy pipes are different. An extrusion device is used in the forming process of aluminum alloy pipes for forming work.
[0003] In the existing pipe extrusion device, the structures of the extrusion die and the extrusion cylinder inside are fixed, so that one mold can only extrude aluminum alloy pipes with specified outer diameters and inner diameters. When it is necessary to extrude aluminum alloy pipes with different outer diameters or inner diameters, the entire mold needs to be replaced or another device needs to be directly used, resulting in low flexibility in use. Therefore, those skilled in the art have proposed an extrusion device for aluminum alloy pipes to solve the problems raised in the above background. Summary of the Invention
[0004] The purpose of the present invention is to provide an extrusion device for aluminum alloy pipes to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the present invention provides the following technical solutions: An extrusion device for aluminum alloy pipes, comprising: A die holder, with a first movable groove and a material storage cavity respectively arranged inside both ends thereof, and a docking adjustment cavity arranged at one end thereof. One end of the docking adjustment cavity is communicated with one end of the material storage cavity. An installation column and a filler pipe are arranged on the top of the die holder, and the bottom end of the filler pipe is communicated with the top of the material storage cavity; An extrusion assembly, arranged in the first movable groove, with one end extending into the material storage cavity, for extruding the material in the material storage cavity into the extrusion cylinder group; An extrusion cylinder group, with its middle part inserted and connected to the die holder between the first movable groove and the material storage cavity, and both ends thereof are respectively placed in the docking adjustment cavity and the first movable groove, and a forming channel is formed inside it. The material is continuously extruded into a tubular shape through the forming channel; An adjustment assembly, installed on the installation column, with its bottom end extending into the first movable groove and cooperating with one end of the extrusion cylinder group, for adjusting the shape of the forming channel; An outer guiding pipe, detachably installed in the docking adjustment cavity, with an outer limiting port arranged at one end thereof, and the outer limiting port is docked with the outer periphery of the forming channel; An inner guiding rod, detachably installed in the docking adjustment cavity, with an inner limiting port arranged at one end thereof, and the inner limiting port is docked with the inner periphery of the forming channel. A stable channel corresponding to the size of the forming channel is formed between the outer periphery of the inner guiding rod and the inner periphery of the outer guiding pipe.
[0006] As a further solution of the present invention: the extrusion cylinder group includes a central rod and a plurality of extrusion cylinders sleeved around the central rod layer by layer in a fitting manner. One end of the extrusion cylinder close to the docking adjustment cavity is provided with an inclined annular end face. The wall thicknesses of the plurality of extrusion cylinders are the same. A plurality of inclined holes are evenly distributed in a circumferential direction near the inclined annular end face at the end of the extrusion cylinder. The inclination of the inclined holes is the same as that of the inclined annular end face. The outer diameter of the outermost extrusion cylinder is the same as the inner diameter of the docking adjustment cavity.
[0007] As a further solution of the present invention: one end of the central rod located in the first movable groove is connected to the top end of the fixing plate, and the bottom end of the fixing plate is detachably installed on the inner bottom surface of the first movable groove.
[0008] As a further solution of the present invention: the adjusting assembly includes a plurality of telescopic members installed on the mounting column at equal intervals and a connecting plate with one end of the top end connected to the telescopic member. The number of the telescopic members is the same as the number of the extrusion cylinders. The length of the part of the extrusion cylinder placed in the first movable groove is inversely proportional to its outer diameter. The bottom end of the connecting plate is connected to the outer wall of the end of the corresponding extrusion cylinder. A second movable groove is provided at the top of the first movable groove, and the middle part of the connecting plate is slidably connected in the second movable groove.
[0009] As a further solution of the present invention: the extrusion assembly includes a second telescopic member installed at one end of the first movable groove, a movable plate installed at the end of the second telescopic member, and a plurality of push rods with one end installed on the movable plate. The other end of the push rod extends into the material storage cavity and is connected with an extrusion plate. The outer wall of the extrusion plate is in fit with the inner wall of the material storage cavity. The outermost extrusion cylinder is in an inserted and mating connection with the extrusion plate.
[0010] As a further solution of the present invention: the inner wall of one end of the docking adjustment cavity far from the material storage cavity is provided with internal threads, and one end of the outer peripheral guide tube is provided with a threaded sleeve that is in fit connection with the internal threads.
[0011] As a further solution of the present invention: one end of the central rod close to the docking adjustment cavity is provided with a threaded rod, and one end of the inner peripheral guide rod is provided with a threaded hole that is in fit connection with the threaded rod.
[0012] The present invention has the following advantages: The device adjusts the shape of the forming channel in the extrusion cylinder group through an adjustment component. By adjusting the positions of several extrusion cylinders and inclined holes, the inner diameter and outer diameter of the forming channel can be adjusted according to requirements. Then, after the material is extruded into the extrusion cylinder group by the extrusion component, it can be continuously output through the forming channel and extruded into a tubular shape with a specified inner and outer diameter. By setting the outer guiding tube and the inner guiding rod to dock with the ends of the extrusion cylinder group and form a stable channel, the material is transported into the stable channel through the forming channel, which can ensure the continuity of extrusion, avoid extrusion dead corners, ensure that the extruded aluminum alloy tube does not deform, and at the same time facilitate the cooling and removal of the formed aluminum alloy tube. The overall device has a simple structure and is easy to operate, can process aluminum alloy tubes with different inner and outer diameters within a certain range, has high flexibility in use, and better use effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 FIG. is a schematic diagram of the overall external structure of an embodiment of the present invention.
[0014] Figure 2 FIG. is a schematic diagram of a partial internal structure of a die base in an embodiment of the present invention.
[0015] Figure 3 FIG. is a schematic diagram of the structure of the adjustment component and the extrusion cylinder group in an embodiment of the present invention.
[0016] Figure 4 FIG. is a schematic diagram of the structure of the outer guiding tube in an embodiment of the present invention.
[0017] Figure 5 FIG. is a schematic diagram of the structure of the inner guiding rod in an embodiment of the present invention.
[0018] Figure 6 is Figure 3 an enlarged schematic diagram of part A in
[0019] Figure 7 FIG. is a working principle diagram of an embodiment of the present invention.
[0020] In the figure: 1. Die holder; 101. First movable slot; 102. Material storage cavity; 103. Second movable slot; 104. Mounting post; 105. Docking adjustment cavity; 106. Internal thread; 107. Filler pipe; 2. Extrusion cylinder group; 201. Central rod; 202. Fixed plate; 203. Extrusion cylinder body; 204. Oblique hole; 205. Threaded rod; 206. Oblique annular end face; 3. Adjustment assembly; 301. First telescopic member; 302. Connecting plate; 4. Extrusion assembly; 401. Second telescopic member; 402. Movable plate; 403. Push rod; 404. Extrusion plate; 5. Peripheral guide pipe; 501. Threaded sleeve; 502. Peripheral limiting port; 6. Inner peripheral guide rod; 601. Threaded hole; 602. Inner peripheral limiting port; 7. Material; 8. Forming channel; 9. Stable channel. Detailed implementation mode
[0021] The technical solution of the present invention will be further described in detail below in conjunction with the specific implementation mode.
[0022] Example 1: Please refer to Figure 1 , Figure 2 , an aluminum alloy pipe extrusion device, including a die holder 1, the two ends of the die holder 1 are respectively provided with a first movable slot 101 and a material storage cavity 102 inside, one end of the die holder 1 is provided with a docking adjustment cavity 105, one end of the docking adjustment cavity 105 is communicated with one end of the material storage cavity 102, the top of the die holder 1 is provided with a mounting post 104 and a filler pipe 107, the bottom end of the filler pipe 107 is communicated with the top of the material storage cavity 102, the filler pipe 107 is arranged close to one end of the material storage cavity 102 near the docking adjustment cavity 105, an extrusion assembly 4 is arranged in the first movable slot 101, one end of the extrusion assembly 4 extends into the material storage cavity 102, and the extrusion assembly 4 is used to extrude the material 7 in the material storage cavity 102 into the extrusion cylinder group 2. An extrusion cylinder group 2 is arranged in the die holder 1, the middle part of the extrusion cylinder group 2 is inserted and connected between the first movable slot 101 and the material storage cavity 102, both ends of the extrusion cylinder group 2 are respectively placed in the docking adjustment cavity 105 and the first movable slot 101, a forming channel 8 is formed inside the extrusion cylinder group 2, and the material 7 is continuously extruded into a tube shape through the forming channel 8. An adjustment assembly 3 is installed on the mounting post 104, the bottom end of the adjustment assembly 3 extends into the first movable slot 101 and is connected with one end of the extrusion cylinder group 2 in a matching manner, and the adjustment assembly 3 is used to adjust the shape of the forming channel 8. A peripheral guide pipe 5 and an inner peripheral guide rod 6 are detachably installed in the docking adjustment cavity 105, a stable channel 9 corresponding to the size of the forming channel 8 is formed between the outer periphery of the inner peripheral guide rod 6 and the inner periphery of the peripheral guide pipe 5, one end of the peripheral guide pipe 5 is provided with a peripheral limiting port 502, the peripheral limiting port 502 is docked with the outer periphery of the forming channel 8, one end of the inner peripheral guide rod 6 is provided with an inner peripheral limiting port 602, and the inner peripheral limiting port 602 is docked with the inner periphery of the forming channel 8.
[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 。 The extrusion cylinder group 2 includes a central rod 201 and a number of extrusion cylinders 203 that are layer-by-layer fitted around the periphery of the central rod 201. That is, the inner wall of the innermost extrusion cylinder 203 is slidably fitted with the outer wall of the central rod 201. Among the adjacent extrusion cylinders 203, the inner wall of the outer extrusion cylinder 203 is slidably fitted with the outer wall of the inner extrusion cylinder 203. One end of the extrusion cylinder 203 close to the docking adjustment cavity 105 is provided with an inclined annular end face 206. The wall thicknesses of a number of extrusion cylinders 203 are the same. The inner diameters and outer diameters of a number of extrusion cylinders 203 increase step by step. The adjustable value of the inner and outer diameters of the processed aluminum alloy tube is an integer multiple of the wall thickness of the extrusion cylinder 203. In order to make the size of the processed aluminum alloy tube meet the conventional use requirements, in this embodiment, the wall thickness of the extrusion cylinder 203 is 5 mm or 10 mm. A number of inclined holes 204 are evenly distributed in a circumferential manner at the end of the extrusion cylinder 203 close to the inclined annular end face 206. The inclination of the inclined holes 204 is the same as that of the inclined annular end face 206. The outer diameter of the outermost extrusion cylinder 203 is the same as the inner diameter of the docking adjustment cavity 105, ensuring that when adjusting the shape of the forming channel 8, the inclined holes 204 and the inclined annular end face 206 at the corresponding positions can be aligned. During extrusion, it is necessary to make one end of the outermost extrusion cylinder 203 extend into the docking adjustment cavity 105 to ensure that the material 7 will not be extruded into the docking adjustment cavity 105 beyond the extrusion cylinder 203. The middle part of the outermost extrusion cylinder 203 is inserted and fitted with the part of the die base 1 located between the first movable groove 101 and the storage cavity 102. The parts of the whole device in contact with the material 7 are all made of high-density compressive materials, and the joints at the inserted and fitted parts and the slidably fitted parts will not be infiltrated by the material 7. The die base 1 is composed of two symmetrical half dies. One end of the central rod 201 located in the first movable groove 101 is connected to the top end of the fixing plate 202. The bottom end of the fixing plate 202 is detachably installed on the inner bottom surface of the first movable groove 101 by bolts.
[0024] Please refer to Figures 1 to 3, the adjusting assembly 3 includes a plurality of telescopic members equally spaced and installed on the mounting post 104 and a connecting plate 302 with its top end connected to one end of the telescopic member. The number of the telescopic members is the same as the number of the extrusion cylinders 203. The length of the part of the barrel body of the extrusion cylinder 203 placed in the first moving groove 101 is inversely proportional to its outer diameter size, that is, the length of the innermost extrusion cylinder 203 is the longest. The bottom end of the connecting plate 302 is connected to the outer wall of the end of the corresponding extrusion cylinder 203. A second moving groove 103 is provided at the top of the first moving groove 101. The middle part of the connecting plate 302 is slidably connected in the second moving groove 103. The first telescopic member 301 is parallel to the extrusion cylinder 203, and the connecting plate 302 is in a right-angled shape. Considering that when two adjacent connecting plates 302 move to a certain range, their movement will be restricted due to mutual collision, therefore, the distance between the bottoms of two adjacent connecting plates 302 needs to be greater than the distance between the inclined hole 204 and the inclined annular end face 206 on an extrusion cylinder 203, that is, the distance difference between two adjacent connecting plates 302 is the distance difference between the two extrusion cylinders 203 they are correspondingly connected to. This distance difference only needs to meet the change requirement from "the two inclined holes 204 are aligned with each other" to "the inclined hole 204 is aligned with the inclined annular end face 206" between two adjacent extrusion cylinders 203.
[0025] Please refer to Figure 1 , Figure 2 , the extrusion assembly 4 includes a second telescopic member 401 installed at one end of the first moving groove 101, a moving plate 402 installed at the end of the second telescopic member 401, and a plurality of push rods 403 with one end installed on the moving plate 402. The other end of the push rod 403 extends into the storage cavity 102 and is connected with an extrusion plate 404. The outer wall of the extrusion plate 404 is slidably attached to the inner wall of the storage cavity 102. The outermost extrusion cylinder 203 is inserted and cooperatively connected with the extrusion plate 404. A plurality of push rods 403 are circumferentially and evenly distributed around the extrusion cylinder 203. The middle part of the push rod 403 is inserted and cooperatively connected with the part of the die base 1 located between the first moving groove 101 and the storage cavity 102.
[0026] Embodiment 2: Refer to Figures 1 to 7, on the basis of the first embodiment, an internal thread 106 is provided on the inner wall of one end of the docking adjustment cavity 105 away from the material storage cavity 102. A threaded sleeve 501 that is cooperatively connected with the internal thread 106 is provided at one end of the peripheral guide tube 5. A threaded rod 205 is provided at one end of the central rod 201 close to the docking adjustment cavity 105. A threaded hole 601 that is cooperatively connected with the threaded rod 205 is provided at one end of the inner peripheral guide rod 6. The inclination degrees of the peripheral limiting port 502 and the inner peripheral limiting port 602 are both the same as that of the inclined annular end face 206. The thicknesses of the peripheral limiting port 502 and the inner peripheral limiting port 602 are determined according to the outer dimension and the inner dimension of the forming channel 8. When processing aluminum alloy tubes with different inner and outer diameters, the shape dimensions of the peripheral limiting port 502 and the inner peripheral limiting port 602 are also correspondingly different. Therefore, it is necessary to manufacture a variety of different peripheral guide tubes 5 and inner peripheral guide rods 6 to cooperate with the die base 1. The more the number of extrusion cylinders 203, the more the combination change modes of the forming channel 8, and the more the types of the required peripheral guide tubes 5 and inner peripheral guide rods 6.
[0027] Working principle: Combining Figure 7The working principle diagram shown. In this embodiment, the number of extrusion cylinders 203 is set to five. Let the innermost extrusion cylinder 203 be the first layer, and the outermost extrusion cylinder 203 be the fifth layer, and so on. Taking the example of an aluminum alloy tube that needs to be processed with an inner diameter equal to the outer diameter of the second-layer extrusion cylinder 203, an outer diameter equal to the outer diameter of the fourth-layer extrusion cylinder 203, and a thickness equal to the sum of the wall thicknesses of two extrusion cylinders 203, each telescopic member drives the connecting plate 302 to move, and then drives the corresponding extrusion cylinder 203 to move, so that the outer wall of the fifth-layer extrusion cylinder 203 is butted against the end of the butt joint adjustment cavity 105. Material 7 is added into the storage cavity 102 through the filler pipe 107. Then, the third-layer and fourth-layer extrusion cylinders 203 are synchronously adjusted. In the figure, the third-layer and fourth-layer extrusion cylinders 203 are shifted to the left until the inclined annular end faces 206 of these two layers of extrusion cylinders 203 are aligned with the left end faces of the inclined holes 204 of the fifth-layer extrusion cylinder 203. At this time, the area range of the forming channel 8 is jointly composed of the inclined holes 204 of the fifth-layer extrusion cylinder 203 and the "right annular area of the inclined annular end faces 206 of the third-layer and fourth-layer extrusion cylinders 203". The forming channel 8 is the only passing area for the material 7 in the extrusion cylinder group 2. Therefore, the end of the third-layer extrusion cylinder 203 needs to block the periphery of the inclined hole 204 of the second-layer extrusion cylinder 203. After the outer guiding tube 5 and the inner guiding rod 6 are installed, the outer limiting port 502 is butted against the inclined annular end face 206 of the fifth-layer extrusion cylinder 203, and the inner limiting port 602 is simultaneously butted against the inclined annular end faces 206 of the first-layer and second-layer extrusion cylinders 203. In this way, the left end of the stable channel 9 is convenient for butt-jointing with the right end of the forming channel 8. After readjusting the inner and outer diameters of the forming channel 8, the corresponding outer guiding tube 5 and inner guiding rod 6 need to be replaced. Then, the filler pipe 107 is blocked by a plug. The second telescopic member 401 drives the movable plate 402 to move to the right, and then drives the extrusion plate 404 to move to the right through the push rod 403. The extrusion plate 404 extrudes the material 7 into the forming channel 8, and continuously extrudes the material 7 into the stable channel 9. The material 7 forms a tubular aluminum alloy tube in the stable channel 9. The material 7 in the storage cavity 102 can be heated by setting a heating device around the storage cavity 102 to facilitate the flow of the material 7 during extrusion. A cooling device is arranged around the outer guiding tube 5 to cool the formed aluminum alloy tube, which is convenient for taking out the formed aluminum alloy tube.
[0028] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.
[0029] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An aluminum alloy tube extrusion device, characterized in that: include: The mold base has first movable grooves and material storage cavities at both ends thereof, a docking adjustment cavity at one end thereof, one end of which is connected to one end of the material storage cavity, a mounting column and a filling tube at the top of the mold base, and a bottom end of the filling tube is connected to the top of the material storage cavity; An extrusion assembly is arranged in the first movable groove, one end of which extends into the material storage cavity, and is used to squeeze the material in the material storage cavity into the extrusion cylinder assembly; The extrusion cylinder group, wherein the middle part is inserted and matched in the die base between the first movable groove and the material storage cavity, and the two ends are respectively placed in the docking adjustment cavity and the first movable groove, and the interior thereof forms a molding channel, and the material is continuously extruded into a tube through the molding channel; An adjusting assembly is mounted on the mounting column, the bottom of which extends into the first movable groove and is matched and connected with one end of the extrusion barrel assembly, and is used to adjust the shape of the forming channel; A peripheral guide tube is detachably mounted in the docking adjustment cavity, and one end of the peripheral guide tube is provided with a peripheral restriction port, and the peripheral restriction port is docked with the periphery of the forming channel; The inner guide rod is detachably installed in the docking adjustment cavity, and an inner limiting port is provided at one end thereof. The inner limiting port is docked with the inner circumference of the forming channel, and a stable channel corresponding to the size of the forming channel is formed between the periphery of the inner guide rod and the inner circumference of the peripheral guide tube.
2. The aluminum alloy tube extrusion device according to claim 1, characterized in that: The extrusion cylinder group includes a center rod and a plurality of extrusion cylinders which are fitted and sleeved on the periphery of the center rod layer by layer. An oblique annular end face is provided at one end of the extrusion cylinder close to the docking adjustment cavity. The cylinder wall thicknesses of the plurality of extrusion cylinders are consistent. A plurality of oblique holes are evenly distributed on the circumference of the end of the extrusion cylinder close to the oblique annular end face. The inclination of the oblique holes is consistent with that of the oblique annular end face. The outer diameter of the outermost extrusion cylinder is consistent with the inner diameter of the docking adjustment cavity.
3. The aluminum alloy tube extrusion device according to claim 2, characterized in that: One end of the center rod located in the first movable groove is connected to the top end of the fixing plate, and the bottom end of the fixing plate is detachably mounted on the inner bottom surface of the first movable groove.
4. The aluminum alloy tube extrusion device according to claim 2, characterized in that: The adjustment assembly includes a plurality of telescopic parts installed on the mounting column at equal intervals and a connecting plate connected to one end of the telescopic parts at the top end. The number of the telescopic parts is consistent with the number of extrusion cylinders. The length of the portion of the cylinder body of the extrusion cylinder placed in the first movable groove is inversely proportional to its outer diameter. The bottom end of the connecting plate is connected to the end outer wall of the extrusion cylinder at the corresponding position. A second movable groove is provided on the top of the first movable groove, and the middle part of the connecting plate is slidably connected in the second movable groove.
5. The aluminum alloy tube extrusion device according to claim 2, characterized in that: The extrusion assembly includes a second telescopic member installed at one end of the first movable groove, a movable plate installed at the end of the second telescopic member, and a plurality of push rods with one end installed on the movable plate. The other end of the push rod extends into the material storage cavity and is connected to the extrusion plate. The outer wall of the extrusion plate is in contact with the inner wall of the material storage cavity, and the outermost extrusion cylinder is connected to the extrusion plate through an interlaced fit.
6. The aluminum alloy tube extrusion device according to claim 1, characterized in that: An inner wall of one end of the docking adjustment cavity away from the material storage cavity is provided with an internal thread, and one end of the peripheral guide tube is provided with a threaded sleeve matched with the internal thread.
7. The aluminum alloy tube extrusion device according to claim 2, characterized in that: A threaded rod is arranged at one end of the center rod close to the docking adjustment cavity, and a threaded hole matched with the threaded rod is arranged at one end of the inner peripheral guide rod.