CN109570254B - Heat transfer aluminum pipe blank hot extrusion rough forming device - Google Patents

Abstract

The invention discloses a heat-transferring aluminum tube blank hot extrusion rough forming device, comprising a heat-insulating outer metal shell, the upper end surface of the heat-insulating outer metal shell is provided with a feeding port, and the heat-insulating outer metal shell is a A sensor fixing plate is installed on the end surface of the side, a shunt is installed on one side of the sensor fixing plate, a temperature sensor is installed on the front end surface of the sensor fixing plate, there are three temperature sensors, and the rear end surface of the heat insulation outer metal shell is installed A hydraulic press is installed, a fixed base is installed on the lower end surface of the heat insulating outer metal shell, a control platform is installed on one end surface of the fixed base, and a fixed plate is installed on the front end surface of the heat insulating outer metal shell. In the present invention, in the process of forming the aluminum tube with nitrogen, the process of cooling and anti-oxidation is carried out, so that the aluminum tube has a certain toughness, and the quality of the aluminum tube is improved, and a limit thimble is installed on the front end surface of the extrusion hammer, so that the aluminum tube has a certain toughness. One process is saved in the production process, thereby greatly improving production efficiency.

Description

A heat transfer aluminum tube blank hot extrusion rough forming device

technical field

The invention relates to the technical field of heat-transfer aluminum tube production, in particular to a heat-transfer aluminum tube blank hot extrusion rough forming device.

Background technique

As one of the elements of the heat exchanger, the aluminum tube is placed in the cylinder, and is mainly used in the equipment that transfers part of the heat of the hot fluid to the cold fluid, and the fluid flows inside the heat exchange tube for heat exchange. In order to improve the performance of the heat exchanger, a finned heat exchange tube with more heat dissipation area will be used. The ordinary heat exchange tube is directly spirally wound the heat dissipation plate on the surface of the aluminum tube, and the heat dissipation plate is in contact with the surface of the aluminum tube. , expand the heat dissipation effect of the heat exchange tube through the area extension of the heat dissipation plate, and the heat exchanger is an important unit equipment in the industries of oil refining, chemical industry, environmental protection, energy, electric power, etc., with its corrosion resistance and light weight, it is also widely used In the automobile, ship, aerospace, aviation, electrical appliances, agriculture, electromechanical, household and other industries, the supply is in short supply, so the development prospect of heat transfer aluminum tubes is very good.

However, the production efficiency of the existing heat transfer aluminum tube blank hot extrusion rough forming device is too slow, and the rough material is easily bent, and the surface is oxidized seriously; therefore, it does not meet the existing needs, and we propose a method Hot aluminum tube blank hot extrusion rough forming device.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a heat transfer aluminum tube blank hot extrusion rough forming device to solve the problems of slow production efficiency, easy bending of rough material forming and serious surface oxidation proposed in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a heat-transfer aluminum tube blank hot extrusion rough forming device, comprising a heat-insulating outer metal shell, the upper end surface of the heat-insulating outer metal shell is provided with a feeding port, A sensor fixing plate is installed on the end surface of one side of the heat insulating outer metal shell, a shunt is installed on one side of the sensor fixing plate, and a temperature sensor is installed on the front end surface of the sensor fixing plate. There are three temperature sensors. A hydraulic press is installed on the rear end surface of the heat insulation outer metal shell, a fixed base is installed on the lower end surface of the heat insulation outer metal shell, a control platform is installed on the end surface of one side of the fixed base, and the front end surface of the heat insulation outer metal shell is installed There are fixed disks, there are twelve fixed disks, a cooling device is installed on one side of the fixed disk, an air compressor is installed on the inner wall of the fixed base, and a discharge port is installed on the inner wall of the heat-insulating outer metal shell to reinforce A heating resistor is installed on one side of the discharge port reinforcement, a graphite layer is installed on the outer surface of the heating resistor, and an alloy temperature-resistant inner tank is installed on the inner wall of the graphite layer, and the alloy temperature-resistant inner tank is installed A squeeze chamber is installed on the inner wall of the squeeze chamber, a squeeze hammer is installed on one side of the squeeze chamber, a limit thimble is installed on the front end of the squeeze hammer, and a universal shaft is installed on one side of the squeeze hammer. A hydraulic arm is installed on one side of the universal shaft, a discharge port is installed on the other side of the extrusion bin, and a diameter limiter is installed on one side of the discharge port.

Preferably, a guide piece is installed on the front end surface of the fixing plate, a hose fixing member is installed on the rear end surface of the fixing plate, a connecting member is installed at the oblique lower part of the hose fixing member, and the inner wall of the fixing plate is installed There is a sealing fixing piece, and both sides of the sealing fixing piece are installed with built-in fixing discs.

Preferably, a support column is installed above the cooling device, an extension trolley is installed on one side of the support column, there are two extension trolleys, and a tie rod fixing plate is installed on one side of the extension trolley, and the tie rod is fixed There are two plates, one end of the tie rod fixing plate is installed with a tie rod, both ends of the tie rod are installed with tie rod fixing parts, a roller is installed under the extension trolley, and a motor is installed above the roller, the A crash plate is installed on one side of the motor, a jet fixing piece B is installed above the support column, a jet fixing piece A is installed above the jet fixing piece B, and the jet fixing piece A and the jet fixing piece B are installed. The inner wall is equipped with rough embryo fixing pieces, there are eight rough embryo fixing pieces in total, nozzles are installed on one side of the rough embryo fixing pieces, and there are eight nozzles in total, and a nitrogen generator is installed on one side of the cooling device. device.

Preferably, the heating resistor is electrically connected to the control platform.

Preferably, the air compressor and the diverter are connected by a pressure-resistant hose.

Preferably, the end surface of the sensor fixing plate is provided with a hole, the end surface of the temperature sensor is provided with a slot, the end surface of the heat insulating outer metal shell is provided with a threaded hole, and the sensor fixing plate and the temperature sensor pass through the slot. fixed, and the sensor fixing plate and the heat-insulating outer metal shell are connected by bolts.

Preferably, the inner wall of the extrusion chamber is provided with threads, the outer surface of the extrusion hammer is provided with threads, and the extrusion chamber and the extrusion hammer are connected by threads.

Preferably, the front end surface of the extrusion hammer is provided with a threaded hole, one end of the limit thimble is provided with a thread, and the extrusion hammer and the limit thimble are connected by thread.

Preferably, the built-in outer surface of the fixing plate is provided with a rubber sleeve, the built-in fixing plate is connected with the sealing fixing member by gas shielded welding, the outer surface of the hose fixing member is provided with threads, and the rear end surface of the fixing plate is provided with A threaded hole is provided, the hose fixing piece is connected with the fixing disc through threads, and an air core is provided at the connection between the hose fixing piece and the fixing disc.

Preferably, the motor and the roller are connected by a transmission belt, the lower end surface of the jet fixing member A is provided with a hole, the upper end surface of the jet fixing member B is provided with a threaded hole, and the jet fixing member A and the jet fixing member are provided with threaded holes. B is connected by bolts, and the jet fixing part B and the support column are connected by gas shielded welding, the end surface of the crash plate is provided with holes, the front end surface of the extension trolley is provided with threaded holes, and the roller is connected to the extension trolley. Through bolt connection, the end face of the tie rod is provided with a hollow groove, one end of the tie rod fixing plate is provided with a threaded hole, and one end of the tie rod fixing piece is provided with a thread, and the tie rod fixing piece passes through the tie rod and the tie rod fixing plate. Threaded connection.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the front end face of the extrusion hammer is provided with a threaded hole, and one end of the limit thimble is provided with a thread. Hole, saves a protruding process, thereby improving production efficiency;

2. In the present invention, in the process of forming the aluminum tube with nitrogen, the process of cooling and anti-oxidation is carried out, so that the aluminum tube has a certain toughness and the quality of the aluminum tube is improved;

3. The present invention adopts the principle of hot extrusion, so that the heating resistor is preheated, and the graphite layer is kept warm, which can speed up the softening of the aluminum blank, thereby improving the production efficiency;

4. The present invention forms and fixes the driven aluminum tube through the fixing plate, so as to avoid the bending of the aluminum tube due to gravity;

5. The present invention can produce aluminum tubes with special specifications and lengths required by customers through the coordinated use of several extension trolleys, and there is no welding seam in the middle, which is more airtight.

Description of drawings

1 is an overall front view of a heat transfer aluminum tube blank hot extrusion rough forming device of the present invention;

2 is an overall front cross-sectional view of a heat transfer aluminum tube blank hot extrusion rough forming device according to the present invention;

3 is an overall side view of a heat-transfer aluminum tube blank hot extrusion rough forming device according to the present invention;

Fig. 4 is the partial structure schematic diagram of the fixed plate of the present invention;

FIG. 5 is a schematic diagram of the partial structure of the cooling device of the present invention.

In the picture: 1. Feed inlet; 2. Heat-insulating outer metal shell; 3. Temperature sensor; 4. Hydraulic press; 5. Control platform; 6. Fixed base; 7. Sensor fixing plate; 8. Diverter; 9. Fixed Disc; 10. Cooling device; 11. Cardan shaft; 12. Hydraulic arm; 13. Alloy temperature-resistant inner tank; 14. Heating resistor; 15. Graphite layer; 16. Air compressor; 17. Discharge port; 18. Extrusion hammer; 19. Extrusion bin; 20. Outlet reinforcement; 21. Diameter limiter; 22. Built-in fixing plate; 23. Sealing fixing part; 24. Connecting part; 25. Hose fixing part; 26 , guide plate; 27, nitrogen generator; 28, jet fixing part A; 29, nozzle; 30, rough blank fixing part; 31, jet fixing part B; 32, support column; 33, extension bicycle; 34, tie rod; 35, tie rod fixing plate; 36, tie rod fixing part; 37, motor; 38, anti-collision plate; 39, roller; 40, limit thimble.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Please refer to FIGS. 1-5, an embodiment provided by the present invention: a heat-transfer aluminum tube blank hot extrusion rough forming device, comprising an insulating outer metal shell 2, and the upper end surface of the insulating outer metal shell 2 is installed with Feed port 1, a sensor fixing plate 7 is installed on the end face of one side of the heat-insulating outer metal shell 2, a diverter 8 is installed on one side of the sensor fixing plate 7, and a temperature sensor 3 is installed on the front end of the sensor fixing plate 7. The temperature sensor 3. There are three, and the temperature measurement is more accurate. The hydraulic press 4 is installed on the rear end surface of the heat insulation outer metal shell 2, the fixed base 6 is installed on the lower end surface of the heat insulation outer metal shell 2, and the control platform 5 is installed on the end surface of the fixed base 6 side. A fixed plate 9 is installed on the front end surface of the heat-insulating outer metal shell 2, there are twelve fixed plates 9, a cooling device 10 is installed on one side of the fixed plate 9, and an air compressor 16 is installed on the inner wall of the fixed base 6. The inner wall of the metal shell 2 is provided with a discharge port reinforcement 20, a heating resistor 14 is installed on one side of the discharge port reinforcement 20, and a graphite layer 15 is installed on the outer surface of the heating resistor 14, which can play a good role in heat preservation. The inner wall of the graphite layer 15 is installed with an alloy temperature-resistant inner tank 13, the inner wall of the alloy temperature-resistant inner tank 13 is installed with an extrusion chamber 19, one side of the extrusion chamber 19 is equipped with an extrusion hammer 18, and the front end surface of the extrusion hammer 18 is installed The limited thimble 40 is installed, which can directly open holes in the magnetic rough material forming process, which saves the production process. One side of the extrusion hammer 18 is installed with a universal shaft 11, and one side of the universal shaft 11 is installed with a hydraulic arm 12. A discharge port 17 is installed on the other side of the extrusion bin 19 , and a diameter limiter 21 is installed on one side of the discharge port 17 .

Further, a guide piece 26 is installed on the front end surface of the fixing plate 9, a hose fixing member 25 is installed on the rear end surface of the fixing plate 9, a connecting member 24 is installed at the oblique lower part of the hose fixing member 25, and a sealing member 24 is installed on the inner wall of the fixing plate 9. The fixing member 23, the two sides of the sealing fixing member 23 are installed with a fixed plate built-in 22.

Further, a support column 32 is installed above the cooling device 10 , an extension trolley 33 is installed on one side of the support column 32 , there are two extension trolleys 33 , and a pull rod fixing plate 35 is installed on one side of the extension trolley 33 , and the pull rod is fixed There are two plates 35, one end of the pull rod fixing plate 35 is installed with a pull rod 34, two ends of the pull rod 34 are installed with pull rod fixing parts 36, a roller 39 is installed under the extension trolley 33, and a motor 37 is installed above the roller 39. One side of the 37 is installed with an anti-collision plate 38, the upper part of the support column 32 is installed with a jet fixing piece B 31, the upper part of the jet fixing piece B 31 is installed with a jet fixing piece A 28, the jet fixing piece A 28 and the jet fixing piece B 31 The inner wall of the cooling device 30 is installed with rough embryo fixing parts 30, a total of eight rough embryo fixing parts 30 are installed, one side of the rough embryo fixing part 30 is installed with a nozzle 29, a total of eight nozzles 29 are installed, and one side of the cooling device 10 is installed There is a nitrogen generator 27.

Further, the heating resistor 14 is electrically connected to the control platform 5, and the heating resistor 14 can be well controlled according to the temperature.

Further, the air compressor 16 and the diverter 8 are connected by a pressure-resistant hose, there is no obstruction in the connection, and the installation is convenient.

Further, the end surface of the sensor fixing plate 7 is provided with a hole, the end surface of the temperature sensor 3 is provided with a slot, the end surface of the heat insulating outer metal shell 2 is provided with a threaded hole, the sensor fixing plate 7 and the temperature sensor 3 are fixed by the slot, and the sensor The fixing plate 7 is connected with the heat insulating outer metal shell 2 by bolts, which is convenient for installation and disassembly.

Further, the inner wall of the extrusion chamber 19 is provided with threads, the outer surface of the extrusion hammer 18 is provided with threads, and the extrusion chamber 19 and the extrusion hammer 18 are connected by threads, which is convenient for installation and disassembly.

Further, the front end surface of the extrusion hammer 18 is provided with a threaded hole, one end of the limiting thimble 40 is provided with a thread, and the extrusion hammer 18 and the limiting thimble 40 are connected by thread.

Further, the outer surface of the fixed plate built-in 22 is provided with a rubber sleeve, which can well increase the sealing performance, avoid air leakage and reduce the pressure. The fixed plate built-in 22 and the sealing fixture 23 are connected by gas shielded welding, which increases the firmness of the connection point. The outer surface of the hose fixing member 25 is provided with threads, and the rear end surface of the fixing plate 9 is provided with threaded holes. An air core is arranged at the connection of the fixing plate 9, which can well reduce the leakage of gas to the outside.

Further, the motor 37 and the roller 39 are connected by a transmission belt, the lower end face of the jet fixing member A 28 is provided with a hole, the upper end face of the jet fixing member B 31 is provided with a threaded hole, and the jet fixing member A 28 and the jet fixing member B 31 are provided with bolts. The connection is convenient for installation and disassembly, and the jet fixing part B 31 and the support column 32 are connected by gas shielded welding to increase the firmness of the connection point. The end surface of the crash plate 38 is provided with holes, and the front end surface of the extension trolley 33 is provided with threads. The roller 39 is connected with the extension trolley 33 by bolts, which is convenient for installation and disassembly. The end face of the tie rod 34 is provided with a hollow groove, one end of the tie rod fixing plate 35 is provided with a threaded hole, and one end of the tie rod fixing member 36 is provided with threads, and the tie rod is fixed The piece 36 penetrates through the tie rod 34 and is connected with the tie rod fixing plate 35 by screws, which is convenient for installation and removal.

Working principle: When in use, after the equipment is powered on, the heating resistor 14 is started through the control of the control platform 5, adjusted to the preheating state, so that the interior of the extrusion chamber 19 enters the preheating temperature, and the graphite layer 15 will affect the alloy. The surface of the temperature-resistant inner tank 13 is isolated and insulated, the surface temperature is lost and energy is wasted, and the limit thimble 40 and the extrusion hammer 18 are installed, and the temperature sensor 3 on the surface of the sensor fixing plate 7 is observed. After the sensor 3 determines that the internal preheating temperature is reached, the soft aluminum blank is poured into the interior of the extrusion chamber 19 from the feeding port 1, and the interior of the extrusion chamber 19 is heated through the graphite layer 15, so that the aluminum blank is heated. The material becomes softer, and then the hydraulic arm 12 is pressurized by the hydraulic press 4, so that the universal shaft 11 drives the extrusion hammer 18 forward, and the universal shaft 11 itself can move in any direction. The surface is engaged with the internal thread of the extrusion chamber 19. When moving forward, the extrusion hammer 18 will rotate and start to extrude the aluminum blank to the discharge port 17, and through the discharge port 17, the rough-formed cylinder will be diameter-diametered. After setting, the fixed plate 9 after debugging is restricted again to prevent deformation and bending, and then sent to the inside of the air-injection fixture A 28 and the air-injection fixture B 31 above the cooling device 10 through the nitrogen generator 27. The forming rough material is cooled, and the aluminum tube is extended backward, which can be produced by extending the trolley 33 to be longer than other aluminum tubes, and the middle is uninterrupted.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (10)

1. A heat-transfer aluminum tube blank hot extrusion rough forming device, comprising a heat-insulating outer metal shell (2), characterized in that: the upper end face of the heat-insulating outer metal shell (2) is provided with a feeding port ( 1), a sensor fixing plate (7) is installed on the end face of one side of the heat insulating outer metal shell (2), a shunt (8) is installed on one side of the sensor fixing plate (7), and the sensor fixing plate A temperature sensor (3) is installed on the front end surface of (7), there are three temperature sensors (3), a hydraulic press (4) is installed on the rear end surface of the heat insulating outer metal shell (2), 2) A fixed base (6) is installed on the lower end surface of the fixed base (6), a control platform (5) is installed on the end surface of one side of the fixed base (6), and a fixed plate (9) is installed on the front end surface of the heat-insulating outer metal shell (2). ), there are twelve fixed disks (9), a cooling device (10) is installed on one side of the fixed disk (9), and an air compressor (16) is installed on the inner wall of the fixed base (6). A discharge port reinforcement (20) is installed on the inner wall of the heat-insulating outer metal shell (2), and a heating resistor (14) is installed on one side of the discharge port reinforcement (20). A graphite layer (15) is installed on the outer surface, an alloy temperature-resistant inner liner (13) is installed on the inner wall of the graphite layer (15), and an extrusion chamber (19) is installed on the inner wall of the alloy temperature-resistant inner liner (13). , a squeeze hammer (18) is installed on one side of the squeeze chamber (19), a limit thimble (40) is installed on the front end of the squeeze hammer (18), and one of the squeeze hammers (18) is A cardan shaft (11) is installed on the side, a hydraulic arm (12) is installed on one side of the cardan shaft (11), and a discharge port (17) is installed on the other side of the extrusion chamber (19), A diameter limiter (21) is installed on one side of the discharge port (17). 2. A heat-transfer aluminum tube blank hot extrusion rough forming device according to claim 1, characterized in that: a guide plate (26) is installed on the front end surface of the fixed plate (9), and the fixed plate A hose fixing member (25) is installed on the rear end surface of (9), a connecting member (24) is installed at the oblique lower part of the hose fixing member (25), and a sealing fixing member is installed on the inner wall of the fixing plate (9). (23), both sides of the sealing fixing member (23) are installed with built-in fixing discs (22). 3. A heat transfer aluminum tube blank hot extrusion rough forming device according to claim 1, characterized in that: a support column (32) is installed above the cooling device (10), and the support column ( One side of 32) is installed with an extension trolley (33), there are two extension trolleys (33), and one side of the extension trolley (33) is installed with a tie rod fixing plate (35), and the tie rod fixing plate (35) There are two, one end of the tie rod fixing plate (35) is installed with a tie rod (34), both ends of the tie rod (34) are installed with a tie rod fixing member (36), and the lower part of the extension trolley (33) is installed There is a roller (39), a motor (37) is installed above the roller (39), an anti-collision plate (38) is installed on one side of the motor (37), and an upper part of the support column (32) is installed A jet fixing piece B (31), a jet fixing piece A (28) is installed above the jet fixing piece B (31), and both the jet fixing piece A (28) and the inner wall of the jet fixing piece B (31) are installed There are rough embryo fixing pieces (30), eight rough embryo fixing pieces (30) are arranged in total, nozzles (29) are installed on one side of the rough embryo fixing pieces (30), and eight nozzles (29) are arranged in total , a nitrogen generator (27) is installed on one side of the cooling device (10). 4 . The heat-transferring aluminum tube blank hot extrusion rough forming device according to claim 1 , wherein the heating resistor ( 14 ) is electrically connected to the control platform ( 5 ). 5 . 5 . The heat-transfer aluminum tube blank hot extrusion rough forming device according to claim 1 , wherein the air compressor ( 16 ) and the diverter ( 8 ) are connected by a pressure-resistant hose. 6 . 6. A heat-transfer aluminum tube blank hot extrusion rough forming device according to claim 1, characterized in that: the end surface of the sensor fixing plate (7) is provided with a hole, and the temperature sensor (3) is provided with a hole. The end face is provided with a clamping groove, the end face of the heat insulating outer metal shell (2) is provided with threaded holes, the sensor fixing plate (7) and the temperature sensor (3) are fixed by the clamping groove, and the sensor fixing plate (7) is connected to the The heat-insulating outer metal shell (2) is connected by bolts. 7. A heat-transfer aluminum tube blank hot extrusion rough forming device according to claim 1, characterized in that: the inner wall of the extrusion chamber (19) is provided with threads, and the extrusion hammer (18) The outer surface of the screw is provided with threads, and the extrusion chamber (19) is connected with the extrusion hammer (18) through threads. 8. A heat-transfer aluminum tube blank hot extrusion rough forming device according to claim 1, characterized in that: the front end surface of the extrusion hammer (18) is provided with a threaded hole, and a limit thimble (40) One end of the screw is provided with a thread, and the extruding hammer (18) is connected with the limit thimble (40) through a thread. 9. A heat-transfer aluminum tube blank hot extrusion rough forming device according to claim 2, characterized in that: the outer surface of the fixed plate built-in (22) is provided with a rubber sleeve, and the fixed plate built-in (22) It is connected with the sealing fixing member (23) by gas shielded welding, the outer surface of the hose fixing member (25) is provided with threads, the rear end surface of the fixing plate (9) is provided with threaded holes, and the hose fixing member is provided with threads. (25) is connected with the fixing plate (9) through threads, and an air core is provided at the connection between the hose fixing member (25) and the fixing plate (9). 10. A heat-transfer aluminum tube blank hot extrusion rough forming device according to claim 3, characterized in that: the motor (37) and the roller (39) are connected by a transmission belt, and the air-jet fixing part is a The lower end face of (28) is provided with holes, the upper end face of the jet fixing member B (31) is provided with threaded holes, the jet fixing member A (28) and the jet fixing member B (31) are connected by bolts, and the jet fixing member B (31) is connected by bolts. The fixing piece B (31) and the support column (32) are connected by gas shielded welding, the end surface of the crash plate (38) is provided with holes, the front end surface of the extension trolley (33) is provided with threaded holes, and the The roller (39) is connected with the extension trolley (33) by bolts, the end face of the pull rod (34) is provided with a hollow groove, one end of the pull rod fixing plate (35) is provided with a threaded hole, and the pull rod fixing member (36) ) is provided with a thread at one end, and the tie rod fixing member (36) penetrates through the tie rod (34) and is connected with the tie rod fixing plate (35) through a thread.

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