Extrusion forming device for tuyere sleeve rear body

Abstract

The invention relates to the technical field of tuyere sleeve rear body manufacturing, and provides a tuyere sleeve rear body extrusion forming device which is used for carrying out necking extrusion on a stock column for manufacturing a tuyere sleeve rear body and comprises a workbench, and the workbench is provided with a containing groove; the lining ring plate is detachably arranged in the containing groove, and the lining ring plate encloses the containing groove into a containing space with the diameter gradually reduced from bottom to top. The multiple extrusion blocks are arranged in the circumferential direction of the inner wall of the lining ring plate at intervals, the multiple extrusion blocks are synchronously arranged in a sliding mode relative to the axis direction of the lining ring plate, and the multiple extrusion blocks define a machining space used for containing material columns. The limiting top plate is arranged above the machining space in a lifting mode, and the limiting top plate is used for pressing the material column located in the machining space after moving downwards. By means of the technical scheme, the problems that in the prior art, the surface of a cast afterbody is rough, a large amount of follow-up machining treatment needs to be conducted, and the production period is prolonged are solved.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing a rear body of an air port sleeve, and in particular to an extrusion molding device for a rear body of an air port sleeve. Background Art

[0002] In many industrial fields such as metallurgy and chemical industry, the tuyere sleeve is an important heat exchange component, and the rear body of the tuyere sleeve is an important component of the tuyere sleeve. In the past, the rear body of the tuyere sleeve was often made by casting. During the casting process, the liquid metal is cooled and solidified in the mold cavity. However, this method easily leads to defects such as shrinkage cavities and shrinkage inside the casting, making it difficult to ensure the density of the product, thereby affecting its strength and heat resistance. Moreover, the surface of the rear body after casting is rough, and a large amount of subsequent mechanical equipment is required to process the surface and inner cavity of the workpiece, such as grinding and turning, which not only increases the production cost and prolongs the production cycle, but also may cause material waste due to the uncertainty of the processing allowance.

[0003] Therefore, a new tuyere sleeve rear body extrusion molding device is needed to solve the above problems. Summary of the invention

[0004] The present invention proposes an extrusion molding device for the rear body of the tuyere sleeve, which solves the problem in the related art that the rear body surface is rough after casting and a large amount of subsequent mechanical processing is required, which not only prolongs the production cycle but also causes material waste through grinding and turning.

[0005] The technical solution of the present invention is as follows: A tuyere sleeve rear body extrusion molding device, used for necking and extruding a material column for making a tuyere sleeve rear body, comprising: A workbench having a receiving slot; An inner lining ring plate is detachably arranged in the receiving groove, and the inner lining ring plate surrounds the receiving groove to form a receiving space with a diameter gradually decreasing from bottom to top; There are a plurality of extrusion blocks, which are arranged at intervals along the circumferential direction of the inner wall of the liner ring plate, and are synchronously slidably arranged relative to the axial direction of the liner ring plate, and the plurality of extrusion blocks enclose a processing space for accommodating the material column; A limit top plate is lifted and arranged above the processing space, and the limit top plate is used to press the material column located in the processing space after it moves downward.

[0006] Optionally, also include: A lifting drive member is arranged at the inner bottom of the accommodating groove, and the movable end of the lifting drive member is arranged on the bottom surface of the plurality of extrusion blocks. The lifting drive member is used to drive the plurality of extrusion blocks to rise and fall synchronously along the side wall of the lining ring plate.

[0007] Optionally, the extrusion block has a slot and further comprises: The inserting plate is detachably arranged in the slot, and the inserting plate has a boss, and the boss is used to support the material column.

[0008] Optionally, also include: A support box, the workbench is hinged to the support box; A locking member is arranged on the supporting box, and one end of the locking member is detachably arranged on the bottom of the workbench; A column, arranged on one side of the support box; The power box is arranged on the column, and the limiting top plate is arranged on the power output end of the power box.

[0009] Optionally, also include: A frame, wherein the workbench is arranged at the middle of the outer side of the frame; A track, arranged on the frame; There are a plurality of movable seats, and the plurality of movable seats are all slidably arranged on the track; There are several clamping pieces, each of which is arranged on one of the movable seats, and the material column is placed on the clamping piece.

[0010] Optionally, the clamping member includes: A round rod, arranged on the movable seat; A cross bar, slidably disposed on the round bar, wherein the cross bar is arranged perpendicular to the round bar; An annular clamp, arranged on the crossbar; A driving wheel is rotatably arranged on the cross bar, and the driving wheel is located at one side of the inner part of the annular clamp. After the annular clamp clamps the material column, the driving wheel abuts against the side wall of the material column.

[0011] Optionally, also include: A driver, arranged on the frame; A sprocket wheel is rotatably arranged on the frame, and the sprocket wheel is drivingly connected to the driver; A chain is arranged on the sprocket, the chain is located at the bottom of the track, and a plurality of the moving seats are arranged on the chain.

[0012] Optionally, also include: There are several placement platforms, and the several placement platforms are all arranged at the bottom of the frame. The driver is arranged on the placement platforms, and the placement platforms are also used to place the material column to be processed.

[0013] Optionally, the driver includes: Gear motor; A first bevel gear is arranged on the power output end of the reduction motor; A second bevel gear is rotatably disposed on the placement platform, and the first bevel gear is meshed with the second bevel gear for transmission; The second bevel gear is arranged at one end of the rotating shaft, and the sprocket is arranged at the other end of the rotating shaft.

[0014] Optionally, also include: A rubber protrusion is arranged on the bottom surface of the limiting top plate, and the rubber protrusion is used to abut against the end surface of the material column.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, when extruding the material column, firstly, the copper material column is placed in the processing space surrounded by the extrusion blocks, the hydraulic cylinder is started to move the limit top plate downward to compress the material column, and then the extrusion blocks are driven to slide synchronously inward along the axis direction of the inner liner ring plate. Under the limit guiding action of the inner liner ring plate, all the extrusion blocks shrink toward the center of the processing space while moving upward to perform neck extrusion on the material column. Not only can the neck extrusion of the copper material column be achieved, but also the structure is simple and easy to operate. Compared with the rear body formed by the traditional casting method, the present invention extrude and mold the copper material column, and can quickly produce the required rear body shape, without the need for repeated repair of the rear body at a later stage, thereby improving the production effect and the molding effect of the rear body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0017] Figure 1 It is a schematic diagram of the material column structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the air outlet sleeve of the present invention; Figure 3 It is a schematic diagram of the structure of the workbench of the present invention; Figure 4 It is a schematic diagram of the internal structure of the workbench of the present invention; Figure 5 This is a schematic diagram of the structure of the inner liner ring plate of the present invention; Figure 6 It is a schematic diagram of the structure of the extrusion block and the workbench of the present invention; Figure 7 for Figure 2 A partial enlarged view of the middle part; Figure 8 The positional relationship among the frame, track and workbench of the present invention; Fig. 9 It is a schematic diagram of the structure of the clamping member of the present invention; Fig.10 for Figure 8 A partial enlarged view of point B in the middle; Fig.11 This is a front view of the frame of the present invention; Fig.12 It is a schematic diagram of the sprocket and chain structure of the present invention; Fig.13 It is a side view structural schematic diagram of the present invention.

[0018] In the figure: 001, rear body of air inlet sleeve; 002, front cap of air inlet sleeve; 1, material column; 2, workbench; 201, receiving groove; 3, lining ring plate; 301, receiving space; 4, extrusion block; 401, processing space; 402, slot; 5, limit top plate; 6, plug plate; 601, boss; 7, support box; 8, locking piece; 9, column; 10, power box; 11, frame; 12, track; 13, moving seat; 14, clamping piece; 1401, round rod; 1402, cross bar; 1403, ring clamp; 1404, driving wheel; 15, driver; 1501, sprocket; 1502, chain; 1503, rotating shaft; 1504, reduction motor; 1505, first bevel gear; 1506, second bevel gear; 16, rubber protrusion; 17, placement platform; 18, lifting drive member. DETAILED DESCRIPTION In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0019] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] Reference Figure 1 to Figure 13 , which is an embodiment of the present invention, provides an air inlet sleeve rear body extrusion molding device for necking and extruding a material column 1 for making the air inlet sleeve rear body, comprising a workbench 2, the workbench 2 having a receiving groove 201; an inner lining ring plate 3 is detachably arranged in the receiving groove 201, and the inner lining ring plate 3 surrounds the receiving groove 201 into a receiving space 301 with a diameter gradually decreasing from bottom to top; there are a plurality of extrusion blocks 4, the plurality of extrusion blocks 4 are arranged at intervals along the circumferential direction of the inner wall of the inner lining ring plate 3, and the plurality of extrusion blocks 4 are synchronously slidably arranged relative to the axial direction of the inner lining ring plate 3, and the plurality of extrusion blocks 4 surround a processing space 401 for accommodating the material column 1; a limiting top plate 5 is lifted and arranged above the processing space 401, and the limiting top plate 5 is used to press the material column 1 located in the processing space 401 after it moves down.

[0023] In the above scheme, refer to Figure 2 This device mainly extrude the material column 1 with two side channels processed into the concave surface on the outer wall of the rear body 001 of the air outlet sleeve. The semi-finished product after extrusion will be punched with a center hole again, and the bottom surface of the semi-finished product will be cut into an inclined surface to complete the processing of the rear body of the air outlet sleeve. Finally, the rear body 001 of the air outlet sleeve and the front cap 002 of the air outlet sleeve are welded. The workbench 2 is cylindrical, and the receiving groove 201 is a circular groove processed in the middle of the workbench 2. The lining ring plate 3 is an annular plate, which is detachably installed in the receiving groove 201 by bolts. The diameter of the lining ring plate 3 gradually decreases from bottom to top. In this way, when the extrusion block 4 moves up along the lining ring plate 3, several extrusion plates can be gathered toward the center to realize the extrusion molding of the material column 1. The extrusion blocks 4 are metal blocks. All the extrusion blocks 4 are located on the same horizontal plane at any time. There are 6 to 8 extrusion blocks 4 in total, which are evenly spaced along the inner wall of the lining ring plate 3. The outer wall of the extrusion block 4 has the same contour as the inner wall of the lining ring plate 3 to ensure that the extrusion block 4 can slide smoothly. The limiting top plate 5 is a circular metal plate, which is lifted and lowered by a hydraulic cylinder.

[0024] It should be noted that the inner lining ring plate 3 may also be provided with the same number of slide grooves as the extrusion block 4, and the slide grooves are arranged vertically. Vertical bars matching the slide grooves are arranged on the outer wall of the extrusion block 4, so that when the extrusion block 4 moves up and down, the extrusion block 4 can be prevented from sliding in the horizontal direction.

[0025] When extruding the material column 1, first put the copper material column 1 into the processing space 401 surrounded by the extrusion blocks 4, start the hydraulic cylinder to move the limit top plate 5 downward, press the material column 1, and then drive the extrusion blocks 4 to slide synchronously inward along the axis direction of the liner ring plate 3. Under the limit guidance of the liner ring plate 3, all the extrusion blocks 4 shrink toward the center of the processing space 401 while moving upward, and perform necking extrusion on the material column 1. Not only can the necking extrusion of the copper material column 1 be achieved, but also the structure is simple and the operation is convenient.

[0026] Furthermore, it also includes a lifting drive member 18, which is arranged at the inner bottom of the accommodating groove 201, and the movable end of the lifting drive member 18 is arranged on the bottom surface of the plurality of extrusion blocks 4. The lifting drive member 18 is used to drive the plurality of extrusion blocks 4 to rise and fall synchronously along the side wall of the lining ring plate 3.

[0027] In the above scheme, the lifting drive member 18 uses a hydraulic cylinder or a hydraulic push rod. It can be understood that the receiving groove 201 in the workbench 2 has a large depth, and the lifting drive member 18 is directly installed at the bottom of the receiving groove 201. After the lifting drive member 18 is installed in place, the extrusion block 4 is installed. When not working, all the extrusion blocks 4 are located at the bottom of the receiving space 301, and the bottom surface of the extrusion block 4 is directly installed on the installation surface of the movable end of the lifting drive member 18.

[0028] Specifically, a horizontally arranged strip groove is radially opened on the mounting surface of the movable end of the lifting drive member 18, and the bottom surface of the extrusion block 4 is slidably set in the strip groove. When the lifting drive member 18 pushes the extrusion block 4 to move upward, the extrusion block 4 can shrink and move inward along the strip groove. In actual work, all moving parts need to be lubricated.

[0029] Working process: When it is necessary to drive the extrusion block 4 to rise or fall, start the hydraulic cylinder, and the movable end of the hydraulic cylinder extends or retracts, pushing or pulling the extrusion block 4, so that it rises or falls synchronously along the side wall of the lining ring plate 3, thereby adjusting the height position of the extrusion block 4 to meet the extrusion requirements of material columns 1 of different sizes. It can not only conveniently and accurately control the lifting and lowering of the extrusion block 4, improve the applicability and flexibility of the device, but also adjust the extrusion position and appropriately adjust the extrusion force according to actual needs.

[0030] Furthermore, the extrusion block 4 has a slot 402 and also includes an insert plate 6 . The insert plate 6 is detachably disposed in the slot 402 . The insert plate 6 has a boss 601 . The boss 601 is used to support the material column 1 .

[0031] In the above scheme, the slot 402 on the extrusion block 4 is a dovetail slot, the insert plate 6 is a metal plate adapted to the dovetail slot, and the boss 601 is an arc-shaped protrusion arranged in the middle of the upper surface of the insert plate 6. It should be noted that the inner wall of the insert plate 6 directly determines the forming shape of the material column 1, so the insert plate 6 can be replaced according to actual needs. After the insert plate 6 is inserted into the slot 402, it needs to be reinforced with bolts.

[0032] Working process: insert the insert plate 6 into the slot 402 of the extrusion block 4, with the boss 601 facing upward, and then place the edge of the copper column 1 on the boss 601, and the boss 601 supports the column 1. During the extrusion process, the column 1 will not shake or deviate due to the sliding of the extrusion block 4. The setting of the boss 601 can better support and position the column 1, ensure the stability of the column 1 during the extrusion process, and improve the quality of extrusion molding.

[0033] Furthermore, it also includes a support box 7, and the workbench 2 is hinged on the support box 7; a locking member 8 is arranged on the support box 7, and one end of the locking member 8 is detachably arranged at the bottom of the workbench 2; a column 9 is arranged on one side of the support box 7; a power box 10 is arranged on the column 9, and a limiting top plate 5 is arranged on the power output end of the power box 10.

[0034] In the above scheme, the support box 7 is a rectangular box, and the main function of the support box 7 is to raise the workbench 2, and the inside of the support box 7 can also be used to place spare parts for tools or equipment for maintenance. A triangular bracket is provided on the support box 7, and two brackets are symmetrically arranged on both sides of the top surface of the support box 7, and the workbench 2 is hinged on the bracket through a pin. The locking member 8 includes a pad, a screw and a nut, and has a protruding connecting ear plate at the bottom of the workbench 2. When the locking member 8 is installed, the pad is first welded to the pad. When the workbench 2 needs to be limited and fixed, the screw is passed through the connecting ear plate, and the screw is threadedly connected to the pad. Then the nut is installed and the workbench 2 is locked by tightening the nut. When the workbench 2 is not working, as long as the locking member 8 is released, the workbench 2 can be manually pushed to rotate along the hinge, which is convenient for removing or installing the liner ring plate 3 and the extrusion block 4. Therefore, the angle of the workbench 2 can be flexibly adjusted, which is convenient for operators to operate and maintain the device. The power box 10 provides stable power for the limiting top plate 5, ensuring the lifting accuracy of the limiting top plate 5.

[0035] Furthermore, it also includes a frame 11, a workbench 2 is arranged in the middle of the outer side of the frame 11; a track 12 is arranged on the frame 11; there are a plurality of movable seats 13, and the plurality of movable seats 13 are slidably arranged on the track 12; there are a plurality of clamping members 14, each clamping member 14 is arranged on a movable seat 13, and the material column 1 is placed on the clamping member 14.

[0036] In the above scheme, the frame 11 is a frame structure, the track 12 is composed of two parallel linear guide rails and two semicircular arc tracks 12, the moving seat 13 is a metal seat with a pulley, and there is an extension rod in the middle of the moving seat 13. The overall shape of the moving seat 13 is T-shaped, and a through groove is opened along the moving path of the moving seat 13 at the bottom of the track 12, and the extension rod passes through the through groove. The clamping member 14 is a clamp with an arc-shaped clamping claw.

[0037] During operation, the copper material column 1 is placed in the clamping claw of the clamping member 14, the clamping claw clamps the material column 1, and then the chain 1502 is driven by external power to move, and the chain 1502 drives the moving seat 13 to slide on the track 12, and the material column 1 is transported to the processing space 401 above the workbench 2. Driven by the moving seat 13, the material column 1 can be automatically transported and positioned, which improves production efficiency and reduces the workload and errors of manual operation.

[0038] Furthermore, the clamping member 14 includes a round rod 1401, which is arranged on the movable seat 13; a cross bar 1402 is slidably arranged on the round rod 1401, and the cross bar 1402 is arranged vertically to the round rod 1401; an annular clamp 1403 is arranged on the cross bar 1402; a driving wheel 1404 is rotatably arranged on the cross bar 1402, and the driving wheel 1404 is located on one side of the inside of the annular clamp 1403. After the annular clamp 1403 clamps the material column 1, the driving wheel 1404 abuts against the side wall of the material column 1.

[0039] In the above scheme, the round rod 1401 is fixed to the lower end of the extension rod of the moving seat 13, and the cross bar 1402 is provided with a through hole that matches the round rod 1401. The sliding and temporary fixation of the cross bar 1402 on the round rod 1401 are realized by a hydraulic rod or an electric push rod. When the moving seat 13 reaches the working point, the material column 1 is located directly above the processing space 401. The hydraulic rod or the electric push rod directly pushes the cross bar 1402 downward to complete the placement of the material column 1, and then the limiting top plate 5 moves downward to resist the material column 1 to prevent the material column 1 from moving up during the processing of the extrusion block 4. The annular clamp 1403 is a metal ring or a mechanical claw, and the driving wheel 1404 is a rubber wheel. After the material column 1 is placed inside the annular clamp 1403, the driving wheel 1404 is squeezed, and the driving wheel 1404 can rotate the material column 1 after the motor drives it to rotate. It should be noted that during extrusion, the extrusion block 4 needs to be extruded repeatedly, so each time the extrusion block 4 completes the extrusion of the material column 1, the extrusion block 4 will move down. At this time, since the material column 1 is still in the processing space 401, the manipulator does not need to apply too much clamping force to the material column 1. As long as the driving wheel 1404 rotates, the material column 1 will rotate a certain distance to complete the position adjustment, so as to facilitate the next extrusion molding. The driving wheel 1404 can drive the material column 1 to rotate, so as to facilitate the full-scale extrusion and molding of the material column 1 during the extrusion process.

[0040] Furthermore, it also includes a driver 15, which is arranged on the frame 11; a sprocket 1501 is rotatably arranged on the frame 11, and the sprocket 1501 is transmission-connected to the driver 15; a chain 1502 is arranged on the sprocket 1501, and the chain 1502 is located at the bottom of the track 12, and a plurality of movable seats 13 are all arranged on the chain 1502.

[0041] In the above scheme, the extension rod on each moving seat 13 is welded to the link of the chain 1502, and each round rod 1401 is also welded to the link of the chain 1502. When the chain 1502 moves, the chain 1502 can drive the moving seat 13 to slide, and the round rod 1401 will also move with it. It should be noted that the moving seat 13 itself has no power, and the moving seat 13 mainly plays the function of supporting the chain 1502, the clamping member 14 and the material column 1.

[0042] When working, the reduction motor 1504 is started, the output shaft of the reduction motor 1504 drives the sprocket 1501 to rotate, the sprocket 1501 drives the chain 1502 to move, and the chain 1502 drives the moving seat 13 to slide on the track 12 to realize the conveying and positioning of the material column 1. The cooperation of the driver 15, the sprocket 1501 and the chain 1502 can provide stable power transmission, ensure the movement accuracy and speed of the moving seat 13, and improve the automation degree of the device.

[0043] Furthermore, it also includes a placement platform 17, and there are several placement platforms 17. The several placement platforms 17 are all arranged at the bottom of the frame 11. The driver 15 is arranged on the placement platform 17. The placement platform 17 is also used to place the material column 1 to be processed.

[0044] In the above scheme, the placement platform 17 is a rectangular metal plate, which is fixed to the bottom of the frame 11 by a bracket. A positioning groove is provided on the placement platform 17 for placing the material column 1 to be processed and the driver 15. The material frame can also be placed directly on the placement platform 17 for placing the processed or to-be-processed material column 1.

[0045] During operation, the material column 1 to be processed is placed in the positioning groove of the placement platform 17. The operator stands in the middle of the two placement platforms 17 and manually places the material column 1 to be processed on the annular fixture 1403. The driver 15 is installed at the specified position on the placement platform 17. Then, the material column 1 is transported from the placement platform 17 to the processing space 401 above the workbench 2 through the operating device. The processed material column 1 will also return to the operator's position under the pull of the chain 1502. At this time, the operator needs to remove the processed one and put in another material column 1 to be processed to repeat the cycle. The present application provides a stable placement and operation platform, which is convenient for the management and operation of the material column 1 and the driver 15, and improves work efficiency and safety.

[0046] Furthermore, the driver 15 includes a reduction motor 1504; a first bevel gear 1505 is arranged on the power output end of the reduction motor 1504; a second bevel gear 1506 is rotatably arranged on the placement platform 17, and the first bevel gear 1505 and the second bevel gear 1506 are meshed for transmission; the second bevel gear 1506 of the rotating shaft 1503 is arranged at one end of the rotating shaft 1503, and the sprocket 1501 is arranged at the other end of the rotating shaft 1503.

[0047] In the above scheme, the reduction motor 1504 is started, and the power output end of the reduction motor 1504 drives the first bevel gear 1505 to rotate. The first bevel gear 1505 is meshed with the second bevel gear 1506 to drive the second bevel gear 1506 to rotate. The second bevel gear 1506 drives the sprocket 1501 to rotate through the rotating shaft 1503, thereby realizing the movement of the chain 1502 and the driving of the moving seat 13. Through the transmission of the bevel gear and the rotating shaft 1503, efficient transmission and direction conversion of power can be achieved, and the reduction motor 1504 can provide a suitable speed and torque to ensure the stable operation of the device.

[0048] Furthermore, it also includes a rubber protrusion 16 , which is arranged on the bottom surface of the limiting top plate 5 , and is used to abut against the end surface of the material column 1 .

[0049] In the above scheme, the rubber protrusion 16 is a hemispherical rubber block, which is evenly distributed on the bottom surface of the limiting top plate 5. When the limiting top plate 5 moves down to press the material column 1, the rubber protrusion 16 contacts the end surface of the material column 1, providing a certain buffer and friction force to prevent the material column 1 from sliding or being damaged during the extrusion process. The rubber protrusion 16 can increase the friction and buffer force between the limiting top plate 5 and the material column 1, improve the stability and reliability of the material column 1 during the extrusion process, and avoid damage to the end surface of the material column 1.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An extrusion molding device for a rear body of a tuyere sleeve, used for necking and extruding a material column (1) for making a rear body of a tuyere sleeve, characterized in that: include: A workbench (2) having a receiving groove (201); An inner lining ring plate (3) is detachably arranged in the receiving groove (201), and the inner lining ring plate (3) surrounds the receiving groove (201) to form a receiving space (301) with a diameter gradually decreasing from bottom to top; A plurality of extrusion blocks (4), wherein the plurality of extrusion blocks (4) are arranged at intervals along the circumferential direction of the inner wall of the inner liner ring plate (3), and the plurality of extrusion blocks (4) are synchronously slidably arranged relative to the axial direction of the inner liner ring plate (3), and the plurality of extrusion blocks (4) enclose a processing space (401) for accommodating the material column (1); A limiting top plate (5) is lifted and arranged above the processing space (401); after the limiting top plate (5) moves downward, it is used to press the material column (1) located in the processing space (401).

2. The device for extruding the rear body of the air inlet sleeve according to claim 1, characterized in that: Also includes: A lifting drive member (18) is arranged at the inner bottom of the accommodating groove (201), and a movable end of the lifting drive member (18) is arranged on the bottom surface of the plurality of extrusion blocks (4). The lifting drive member (18) is used to drive the plurality of extrusion blocks (4) to rise and fall synchronously along the side wall of the lining ring plate (3).

3. The device for extruding the rear body of the air inlet sleeve according to claim 1, characterized in that: The extrusion block (4) has a slot (402) and further comprises: The inserting plate (6) is detachably arranged in the slot (402), and the inserting plate (6) has a boss (601), and the boss (601) is used to support the material column (1).

4. The device for extruding the rear body of the air inlet sleeve according to claim 1, characterized in that: Also includes: A support box (7), the workbench (2) being hingedly connected to the support box (7); A locking member (8) is arranged on the supporting box (7), and one end of the locking member (8) is detachably arranged on the bottom of the workbench (2); A column (9) is arranged on one side of the support box (7); The power box (10) is arranged on the upright column (9), and the limit top plate (5) is arranged on the power output end of the power box (10).

5. The device for extruding the rear body of the air inlet sleeve according to claim 1, characterized in that: Also includes: A frame (11), wherein the workbench (2) is arranged at the middle part of the outer side of the frame (11); A track (12) arranged on the frame (11); There are a plurality of movable seats (13), and the plurality of movable seats (13) are all slidably disposed on the track (12); There are a plurality of clamping members (14), each of which is arranged on one of the movable seats (13), and the material column (1) is placed on the clamping member (14).

6. The device for extruding the rear body of the air inlet sleeve according to claim 5, characterized in that: The clamping member (14) comprises: A round rod (1401) is arranged on the movable seat (13); A cross bar (1402) is slidably disposed on the round bar (1401), and the cross bar (1402) is arranged perpendicular to the round bar (1401); An annular clamp (1403) is arranged on the cross bar (1402); A driving wheel (1404) is rotatably mounted on the cross bar (1402). The driving wheel (1404) is located on one side of the inside of the annular clamp (1403). After the annular clamp (1403) clamps the material column (1), the driving wheel (1404) abuts against the side wall of the material column (1).

7. The device for extruding the rear body of the air inlet sleeve according to claim 6, characterized in that: Also includes: A driver (15) is arranged on the frame (11); A sprocket (1501) is rotatably mounted on the frame (11), and the sprocket (1501) is drivingly connected to the driver (15); A chain (1502) is arranged on the sprocket (1501), the chain (1502) is located at the bottom of the track (12), and a plurality of the movable seats (13) are arranged on the chain (1502).

8. The device for extruding the rear body of the air inlet sleeve according to claim 7, characterized in that: Also includes: There are a plurality of placement platforms (17), each of which is arranged at the bottom of the frame (11); the driver (15) is arranged on the placement platforms (17); and the placement platforms (17) are also used to place the material column (1) to be processed.

9. The device for extruding the rear body of the air inlet sleeve according to claim 8, characterized in that: The driver (15) comprises: Gear motor (1504); A first bevel gear (1505) is arranged on the power output end of the reduction motor (1504); A second bevel gear (1506) is rotatably disposed on the placement platform (17), and the first bevel gear (1505) and the second bevel gear (1506) are meshed and transmitted; A rotating shaft (1503), the second bevel gear (1506) is arranged at one end of the rotating shaft (1503), and the sprocket (1501) is arranged at the other end of the rotating shaft (1503).

10. The device for extruding the rear body of the air inlet sleeve according to claim 1, characterized in that: Also includes: A rubber protrusion (16) is arranged on the bottom surface of the limiting top plate (5), and the rubber protrusion (16) is used to abut against the end surface of the material column (1).

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