Extruder equipment structure for producing non-ferrous metal seamless tube

Abstract

The utility model discloses an extruding machine equipment structure for producing non-ferrous metal seamless tubes, which comprises an extruding barrel shell and an extruding barrel lining fixedly mounted on the inner side of the extruding barrel shell, an extruding rod is arranged in the extruding barrel lining, a core rod support is arranged in the extruding rod, a die holder is arranged on the right side of the extruding barrel shell, and the core rod support is arranged on the right side of the die holder. And a core rod body is arranged on the left side of the mold base, a driving motor is fixedly installed on the outer side of the extrusion barrel shell, and a stable extrusion mechanism is fixedly arranged at the output end of the driving motor. According to the extruder equipment structure for producing the non-ferrous metal seamless tube, the whole conical die is beneficial to stable flowing of metal during extrusion, concentrated deformation is changed into gentle deformation, the extrusion force is reduced, the severe degree of metal deformation is reduced through low-speed extrusion, the flowing uniformity of the metal is improved, and the problem that a tube body cracks when a flat die is used for extrusion is solved; and the surface quality, the internal structure and the performance quality of the pipe are improved, the yield of the pipe is increased, and the die loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion of non-ferrous metal seamless pipes, in particular to an extruder equipment structure for producing non-ferrous metal seamless pipes. Background Art

[0002] It is difficult to form non-ferrous alloys with high precision and difficult to deform. There are many problems in the traditional production process. Extrusion process is an ideal method, but the existing non-ferrous metal seamless pipe extruder equipment structure still has certain defects, such as:

[0003] As disclosed in the extruder die assembly with publication number CN104936714A, the die assembly for extrusion forming of materials includes a plurality of die plates forming a die body. The die body has an inlet and an outlet, the diameter of the outlet is smaller than the diameter of the inlet, and a tapered surface is between the inlet and the outlet. Each die plate has a central hole, the central hole has a tapered inner surface, and the inner surface forms a tapered surface extending from the inlet to the outlet. The base is connected to the die body, and the rotation of the base causes the die body to rotate. The blank extruded into the die body is heated by friction between the inner and outer surfaces of the blank. When the blank is extruded from the inlet to the outlet of the die body, the blank is heated to a deformable temperature and is extruded into a tube product;

[0004] The above-mentioned extruder die assembly can be heated to a deformable temperature when the blank is extruded from the inlet to the outlet of the die body, and large-sized pipes are prepared by plate tube rolling and welding. By controlling the performance of the plate used, pipes with grain size that meets the requirements can be obtained. However, due to the presence of the weld, the microstructure of the prepared pipe is uneven, which seriously affects the performance uniformity; the microstructure of large-sized pipes prepared by the casting method is a cast microstructure with coarse grains and poor microstructure uniformity; although the centrifugal casting method can optimize the grain size, it has high requirements for equipment and is difficult to produce large-sized pipes; direct extrusion of ingots with flat molds is prone to quality problems such as surface cracks. Utility Model Content

[0005] The purpose of the utility model is to provide an extruder equipment structure for producing non-ferrous metal seamless pipes, so as to solve the problems raised in the above background technology that the equipment requirements are high and it is difficult to produce large-size pipes; direct extrusion of ingots with flat dies is prone to surface cracks and other quality problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extruder equipment structure for producing non-ferrous metal seamless pipes, comprising an extrusion barrel shell and an extrusion barrel liner fixedly installed inside the extrusion barrel shell, an extrusion rod is arranged inside the extrusion barrel liner, and a core rod support is arranged inside the extrusion rod, a die base is arranged on the right side of the extrusion barrel shell, and a core rod body is arranged on the left side of the die base;

[0007] A driving motor is fixedly installed on the outer side of the extrusion barrel shell, and a stable extrusion mechanism is fixedly arranged on the output end of the driving motor;

[0008] A die pad is fixedly installed on the right side of the die base, and a supporting mechanism is arranged on the outer side of the die pad.

[0009] Furthermore, the core rod body is located inside the extrusion barrel shell, and the die base is fixedly installed on the right side of the extrusion barrel shell by mounting bolts.

[0010] Furthermore, the stable extrusion mechanism is provided with a threaded rod, and the threaded rod is fixedly mounted on the output end of the driving motor, and a fixing plate is threadedly mounted on the surface of the threaded rod, and the inner side of the fixing plate is fixedly mounted on the surface of the extrusion rod.

[0011] Furthermore, a limiting rod is fixedly installed at the lower end of the extrusion barrel shell, and the left side of the limiting rod passes through the fixing plate installed at the lower end, and the limiting rod is slidably connected to the fixing plate.

[0012] Furthermore, a slider is fixedly installed inside the extrusion rod, and a slide groove is provided on the surface of the core rod support, and the slider and the slide groove are connected in a sliding manner.

[0013] Furthermore, the support mechanism is provided with a die tail pad, and the die tail pad is arranged on the right side of the die center pad.

[0014] Furthermore, an integrated conical extrusion die is arranged inside the die base, and a die support is arranged inside the die base, and the integrated conical extrusion die is located on the left side of the die support.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. An extrusion barrel liner connected to the extrusion barrel shell is arranged on the inner side thereof, which can extrude the pipe through the die base under the limit of the core rod body during extrusion, and can achieve the effect of extruding the pipe along the extrusion rod, which is convenient for the staff to use and has a simple and convenient structure;

[0017] Furthermore, when the device is used for extrusion, the driving motor is started to drive the threaded rod to rotate, and the rotation of the threaded rod drives the fixed plate threadedly connected to the surface thereof to move. At this time, the extrusion rod on the inner side of the fixed plate moves to the right side under the limit of the limit rod until the core rod support on the inner side of the extrusion rod contacts the core rod body. At this time, the core rod support is pushed out to the left side, and moves to the left side under the limit of the slider and the slide groove, thereby achieving the effect of auxiliary extrusion and providing a stable extrusion blank effect.

[0018] 2. Reduce the extrusion pressure, improve the uniformity of metal flow, solve the problem of tube cracking during flat die extrusion, improve the surface quality, high dimensional accuracy, fine grains of internal structure, and improve the yield rate of tubes;

[0019] Furthermore, the integral cone die is conducive to the smooth flow of metal during extrusion, changing concentrated deformation to gentle deformation, reducing the extrusion force, and low-speed extrusion reduces the severity of metal deformation, improves the uniformity of metal flow, solves the problem of tube cracking during flat die extrusion, improves the surface quality, internal organization and performance quality of the tube, improves the yield rate of the tube, and reduces die loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the side sectional structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 5 This is a schematic diagram of the front cross-sectional structure of the mold support of the utility model;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the mold base of the utility model.

[0026] In the figure: 1. Extrusion barrel shell; 2. Extrusion barrel lining; 3. Extrusion rod; 4. Core rod support; 5. Core rod body; 6. Die base; 7. Drive motor; 8. Threaded rod; 9. Fixed plate; 10. Limit rod; 11. Slider; 12. Slide groove; 13. Mounting bolt; 14. Integrated conical extrusion die; 15. Die support; 16. Die center pad; 17. Die tail pad. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1:

[0029] like Figure 1-Figure 3The technical solution shown, in order to solve the problem of unstable extrusion, discloses: an extrusion barrel shell 1 and an extrusion barrel liner 2 fixedly installed inside the extrusion barrel shell 1, an extrusion rod 3 is arranged inside the extrusion barrel liner 2, and a core rod support 4 is arranged inside the extrusion rod 3, a die base 6 is arranged on the right side of the extrusion barrel shell 1, and a core rod body 5 is arranged on the left side of the die base 6, the core rod body 5 is located inside the extrusion barrel shell 1, and the die base 6 is fixedly installed on the right side of the extrusion barrel shell 1 by means of mounting bolts 13;

[0030] In the embodiment, an extrusion barrel liner 2 connected to the extrusion barrel shell 1 is provided on the inner side thereof, and the tube can be extruded through the die base 6 under the limit of the core rod body 5 during extrusion, so as to achieve the effect of extruding the tube along the extrusion rod 3, which is convenient for the staff to use and has a simple and convenient structure;

[0031] Embodiment 2:

[0032] like Figure 1 , Figure 2 and Figure 4 The technical solution shown, in order to solve the problem of inconvenience in extruding a circular pipe, discloses: a driving motor 7 is fixedly installed on the outer side of the extrusion barrel shell 1, and a stable extrusion mechanism is fixedly installed on the output end of the driving motor 7, and the stable extrusion mechanism is provided with a threaded rod 8, and the threaded rod 8 is fixedly installed on the output end of the driving motor 7, and a fixing plate 9 is threadedly installed on the surface of the threaded rod 8, and the inner side of the fixing plate 9 is fixedly installed on the surface of the extrusion rod 3, a limiting rod 10 is fixedly installed on the lower end of the extrusion barrel shell 1, and the left side of the limiting rod 10 penetrates the fixing plate 9 installed at the lower end, and the limiting rod 10 is slidably connected to the fixing plate 9, a slider 11 is fixedly installed inside the extrusion rod 3, and a slide groove 12 is provided on the surface of the core rod support 4, and the slider 11 is connected to the slide groove 12 in a sliding manner;

[0033] In the embodiment, when the device is used for extrusion, the driving motor 7 is started to drive the threaded rod 8 to rotate, and the rotation of the threaded rod 8 drives the fixed plate 9 threadedly connected on its surface to move. At this time, the extrusion rod 3 on the inner side of the fixed plate 9 moves to the right side under the limit of the limit rod 10 until the core rod support 4 on the inner side of the extrusion rod 3 contacts the core rod body 5. At this time, the core rod support 4 is pushed out to the left side, and moves to the left side under the limit of the slider 11 and the slide groove 12, so as to achieve the effect of auxiliary extrusion and provide a stable extrusion blank effect.

[0034] Embodiment three:

[0035] like Figure 1 , Figure 5 and Figure 6The technical solution shown, in order to solve the problem of insufficient supporting force during extrusion, discloses: a die center pad 16 is fixedly installed on the right side of the die base 6, and a supporting mechanism is provided on the outer side of the die center pad 16, and the supporting mechanism is provided with a die tail pad 17, and the die tail pad 17 is arranged on the right side of the die center pad 16, an integrated conical extrusion die 14 is arranged inside the die base 6, and a die support 15 is arranged inside the die base 6, and the integrated conical extrusion die 14 is located on the left side of the die support 15;

[0036] In the embodiment, the integral conical extrusion die 14 and other dies of corresponding sizes are first installed. When the billet is heated to temperature again and coated with lubricant, it is loaded into the extrusion barrel liner 2, and then the extrusion rod 3 pushes the billet forward to the front end of the integral conical extrusion die 14. At the same time, the core rod body 5 penetrates the inner hole of the billet. After the front end of the billet contacts the integral conical extrusion die 14 tightly, the extrusion rod 3 continues to push forward. By applying pressure to the billet, the billet is first upset and deformed to eliminate the gap between the outer circle of the billet and the inner wall of the extrusion barrel liner 2 and the gap between the inner surface of the billet and the core rod body 5. Then the billet is extruded into the annular cavity formed by the integral conical extrusion die 14 and the core rod body 5 to become a tube. When the extrusion rod 3 moves forward to the limit stop position, the extrusion process is completed, and 15 mm of unextruded billet residue is left in the extrusion barrel liner 2. Then the switch of the extrusion barrel is locked and turned on, the extrusion barrel shell 1 is withdrawn, and the billet residue, extrusion rod 3 and core rod body 5 are withdrawn together. The billet residue is cut off from the pipe, and the pipe is transported from the outlet direction of the extruder to the cooling bed, and the extrusion process is completed.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extruder equipment structure for producing non-ferrous metal seamless pipes, comprising an extrusion barrel shell (1) and an extrusion barrel liner (2) fixedly installed inside the extrusion barrel shell (1), an extrusion rod (3) is arranged inside the extrusion barrel liner (2), and a core rod support (4) is arranged inside the extrusion rod (3), a die base (6) is arranged on the right side of the extrusion barrel shell (1), and a core rod body (5) is arranged on the left side of the die base (6); Features: A driving motor (7) is fixedly mounted on the outer side of the extrusion barrel shell (1), and a stable extrusion mechanism is fixedly arranged at the output end of the driving motor (7); A mold center pad (16) is fixedly mounted on the right side of the mold base (6), and a supporting mechanism is arranged on the outer side of the mold center pad (16).

2. The extruder equipment structure for producing non-ferrous metal seamless pipes according to claim 1, characterized in that: The core rod body (5) is located inside the extrusion barrel shell (1), and the die base (6) is fixedly mounted on the right side of the extrusion barrel shell (1) via mounting bolts (13).

3. The extruder equipment structure for producing non-ferrous metal seamless pipes according to claim 1, characterized in that: The stable extrusion mechanism is provided with a threaded rod (8), and the threaded rod (8) is fixedly mounted on the output end of the driving motor (7), and a fixing plate (9) is threadedly mounted on the surface of the threaded rod (8), and the inner side of the fixing plate (9) is fixedly mounted on the surface of the extrusion rod (3).

4. The extruder equipment structure for producing non-ferrous metal seamless pipes according to claim 3, characterized in that: A limiting rod (10) is fixedly installed at the lower end of the extrusion barrel shell (1), and the left side of the limiting rod (10) penetrates the fixing plate (9) installed at the lower end, and the limiting rod (10) is slidably connected to the fixing plate (9).

5. The extruder equipment structure for producing non-ferrous metal seamless pipes according to claim 4, characterized in that: A slider (11) is fixedly installed inside the extrusion rod (3), and a slide groove (12) is provided on the surface of the core rod support (4), and the slider (11) and the slide groove (12) are connected in a sliding manner.

6. The extruder equipment structure for producing non-ferrous metal seamless pipes according to claim 1, characterized in that: The support mechanism is provided with a die tail pad (17), and the die tail pad (17) is arranged on the right side of the die center pad (16).

7. The extruder equipment structure for producing non-ferrous metal seamless pipes according to claim 6, characterized in that: An integrated conical extrusion die (14) is arranged inside the die base (6), and a die support (15) is arranged inside the die base (6), and the integrated conical extrusion die (14) is located on the left side of the die support (15).

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