CN113680940A

CN113680940A - Multi-station closed extrusion cold-heading forging machine

Info

Publication number: CN113680940A
Application number: CN202111110574.0A
Authority: CN
Inventors: 甘乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-11-23

Abstract

The invention belongs to the field of forging machines, in particular to a multi-station block extrusion cold-heading forging machine, which aims at solving the problems that the existing cold-heading forging device has single cooling mode and poor cooling effect, and when the device is used, the cooling liquid needs to be frequently replaced, and the cooling liquid on radiating fins needs to be frequently cleaned, so that the cooling device is very troublesome, the invention provides the following scheme, which comprises two brackets, wherein the two brackets are fixedly provided with the same die, the top of the die is provided with a die cavity, one sides of fixing plates are fixedly arranged on the two brackets, the other sides of the two fixing plates are fixedly provided with the same cooling liquid box, a gas pipe is arranged in the cooling liquid box, one end of the gas pipe is fixedly communicated with one end of a corrugated pipe, and the other end of the corrugated pipe is fixedly communicated with an air blowing cover, the invention can greatly improve the cooling effect by the combination of air cooling and water cooling, and the cooling is realized by one power source, the cooling range can be increased, and the cooling is more uniform.

Description

Multi-station closed extrusion cold-heading forging machine

Technical Field

The invention relates to the technical field of forging machines, in particular to a multi-station blocking extrusion cold-heading forging machine.

Background

A forging machine is a machine that changes the physical properties of a metal material in a plastic state into a workpiece having a certain shape and size by hammering or the like.

By search, publication (bulletin) no: CN113070431A discloses a multi-station block extrusion cold-heading forging device, which belongs to the field of block extrusion devices, and relates to a multi-station block extrusion cold-heading forging device, in the process of carrying out block extrusion cold heading, a storage cavity is cooled in a block extrusion process gap through a radiating fin, in the block extrusion process, the storage cavity can be cooled through the heat exchange between the radiating fin and cooling oil filled in the cooling cavity, the cooling rate of the storage cavity and a female die body is accelerated by separating the storage cavity for placing materials and the main stress point female die body for carrying out block extrusion, the block extrusion device can be timely cooled, a large amount of heat is not easy to accumulate in a die of the block extrusion device, and the die of the block extrusion device is not easy to generate micro plastic deformation in the block extrusion process, the forming precision of the blocking extrusion device is not easily influenced.

However, the cold-heading forging device has a single cooling mode and poor cooling effect, and when the device is used, the cooling liquid needs to be replaced frequently, and the cooling liquid on the radiating fins needs to be cleaned frequently, which is very troublesome, so that a multi-station blocking extrusion cold-heading forging machine is provided for solving the problems.

Disclosure of Invention

The invention aims to solve the defects that a cold-heading forging device in the prior art is single in cooling mode and poor in cooling effect, and meanwhile, when the device is used, cooling liquid needs to be replaced frequently, cooling liquid on radiating fins needs to be cleaned frequently, and the cold-heading forging device is extremely troublesome.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a cold mound forging machine of closed extrusion of multistation, includes two supports, and fixed mounting has same mould on two supports, and the top of mould is equipped with the die cavity, and equal fixed mounting has one side of fixed plate on two supports, and the opposite side fixed mounting of two fixed plates has same coolant liquid case, the coolant liquid incasement is equipped with the gas-supply pipe, and the fixed intercommunication of one end of gas-supply pipe has the one end of bellows, and the fixed intercommunication of the other end of bellows has the cover of blowing, and the cover of blowing is located the below of mould, the outside fixed mounting of mould has a plurality of radiating fin, be equipped with the cooling chamber on the mould, the fixed intercommunication in one side of mould has the cavity post, and the fixed intercommunication of opposite side of mould has the drain pipe, be equipped with the drawing liquid mechanism on the cavity post, one side of mould is equipped with swing mechanism, and the other end of gas-supply pipe is connected with air supply mechanism.

Preferably, the liquid pumping mechanism comprises a liquid pumping pipe, a piston, a push-pull rod, a movable plate, a first check valve and a second check valve, the piston is slidably mounted in the hollow column, one end of the push-pull rod is fixedly connected with the piston, and the other end of the push-pull rod extends to the outer side of the hollow column and is fixedly connected with the movable plate.

Preferably, the one end of liquid suction pipe is located the coolant liquid incasement, inlet and liquid outlet have been seted up respectively to the one end and the outside of cavity post, first check valve is located in the liquid outlet, the second check valve is located in the liquid inlet, the other end and the fixed intercommunication of inlet of liquid suction pipe, one side of mould is equipped with the diffluence pore, the diffluence pore is linked together with liquid outlet and cooling chamber, fixed intercommunication has the shunt tubes on the bottom inner wall of diffluence pore, the top opening fixed mounting of blowing cover has the foam-rubber cushion, the foam-rubber cushion is inserted to the one end of shunt tubes, and a plurality of humidification holes have been seted up to the part that the shunt tubes is located the foam-rubber cushion.

Preferably, the swing mechanism comprises a swing rod, a connecting rod and a cross rod, the swing rod is rotatably installed on one side of the mold, one end of the connecting rod is fixedly connected with the swing rod, the other end of the connecting rod is fixedly connected with the cross rod, and one end of the cross rod is fixedly connected with the air blowing cover.

Preferably, one end of the oscillating rod is fixedly provided with a first bevel gear, the first bevel gear is engaged with a second bevel gear, the top of the second bevel gear is fixedly provided with a round rod, the round rod is rotatably arranged on the hollow column, a transmission gear is fixedly sleeved on the outer side of the round rod, the transmission gear is engaged with a rack, and one end of the rack is fixedly connected with the movable plate.

Preferably, the air supply mechanism comprises an air supply cover, a power rod, fan blades and a motor, the motor is fixedly installed on one side of the support, an output shaft of the motor is fixedly communicated with one end of the power rod, the other end of the power rod extends into the air supply cover and is fixedly connected with the fan blades, and the air supply cover is fixedly communicated with one end of the air supply pipe.

Preferably, the outer side of the power rod is fixedly sleeved with a third bevel gear, the third bevel gear is meshed with a fourth bevel gear, the top of the fourth bevel gear is fixedly provided with a bearing rod, and the bearing rod is rotatably arranged on the fixing plate.

Preferably, a first reciprocating rod is fixedly mounted at the top of the bearing rod, a second reciprocating rod is rotatably mounted at one end of the first reciprocating rod, and one end of the second reciprocating rod is rotatably connected with one side of the moving plate.

Preferably, the top fixed mounting of two supports has same mounting bracket, and fixed mounting has the pneumatic cylinder on the mounting bracket, fixedly connected with pier nose on the output shaft of pneumatic cylinder, and the bottom fixed mounting of coolant liquid case has the refrigeration piece.

Preferably, a collecting box is fixedly installed on one side of the support, one end of the liquid outlet pipe is fixedly communicated with the top of the collecting box, a first impeller shaft and a second impeller shaft are rotatably installed on one side of the collecting box, impellers are fixedly installed on one ends of the first impeller shaft and the second impeller shaft, belt wheels are fixedly sleeved on the outer sides of the first impeller shaft and the second impeller shaft, the two belt wheels are located on the outer side of the collecting box, the same belt is installed on the two belt wheels in a transmission mode, one end of a return pipe is fixedly communicated with one side of the collecting box, the other end of the return pipe is fixedly communicated with the top of the cooling liquid box, a control valve is arranged on the return pipe, the first impeller shaft is concentric with the oscillating rod, a connecting rod is fixedly installed at one end of the first impeller shaft, and one end of the connecting rod is fixedly connected with the air blowing cover, and a temperature sensor is arranged in the collecting box and electrically connected with the control valve.

Compared with the prior art, the invention has the beneficial effects that:

the second reciprocating rod drives the movable plate to horizontally reciprocate, the movable plate drives the push-pull rod to reciprocate, the push-pull rod drives the piston to reciprocate, then the cooling liquid is extracted through the liquid extracting pipe, the cooling liquid enters the cooling cavity through the liquid outlet and the flow dividing hole, meanwhile, when the cooling liquid passes through the flow dividing hole, part of the cooling liquid enters the flow dividing pipe and is injected into the sponge pad through the flow dividing pipe, and the cooling liquid flows through the cooling cavity to exchange heat with the mold, so that primary cooling is carried out;

the fan blades rotate to blow rightwards, gas is conveyed through the gas conveying pipe, the gas passing through the gas conveying pipe is cooled through cooling liquid in the cooling liquid tank, the cooled gas is blown out through the blowing cover, in the blowing process, the gas penetrates through humid gas of the spongy cushion and is blown to the lower surface of the mold, so that moisture is attached to the lower surface of the mold, and then in the working process of the mold, the moisture attached to the surface is evaporated through heat emitted by the mold to realize secondary cooling of the mold;

the connecting rod is driven by the oscillating rod to oscillate back and forth, the connecting rod drives the air blowing cover to oscillate back and forth by the cross rod, the cooling range is increased, the cooling is more uniform, the air blowing cover can also drive the first impeller shaft on the side wall of the collecting box to rotate in the oscillating process, the impeller drives the heat-exchanged high-temperature cooling liquid in the collecting box to flow in a vortex manner so as to accelerate the heat dissipation of the high-temperature cooling liquid, and the cooled cooling liquid flows back into the cooling liquid box from the return pipe;

the invention can greatly improve the cooling effect by combining air cooling and water cooling, is realized by one power source, can increase the cooling range and has more uniform cooling.

Drawings

FIG. 1 is a schematic structural view of a multi-station block extrusion cold-heading forging machine according to the present invention;

FIG. 2 is a schematic side view of the coolant tank, the liquid suction pipe, the bellows and the blowing cover of the multi-station block extrusion cold-heading forging machine according to the present invention;

FIG. 3 is an enlarged schematic view of part A of the multi-station block extrusion cold-heading forging machine of FIG. 1 according to the present invention;

FIG. 4 is an enlarged schematic structural view of a portion B in FIG. 1 of a multi-station block extrusion cold-heading forging machine according to the present invention;

FIG. 5 is a schematic perspective view of the connection of a first reciprocating rod and a second reciprocating rod of the multi-station block extrusion cold-heading forging machine according to the present invention;

fig. 6 is a schematic perspective view of the connection of a first reciprocating rod and a second reciprocating rod of the multi-station block extrusion cold-heading forging machine according to the present invention.

In the figure: 1. a support; 2. a mold; 3. a mold cavity; 4. a mounting frame; 5. a hydraulic cylinder; 6. heading; 7. a heat dissipating fin; 8. a fixing plate; 9. a coolant tank; 10. a liquid pumping pipe; 11. a cooling chamber; 12. a hollow column; 13. a piston; 14. a push-pull rod; 15. moving the plate; 16. a first check valve; 17. a second one-way valve; 18. a bellows; 19. a blowing hood; 20. a gas delivery pipe; 21. a refrigeration plate; 22. a gas delivery hood; 23. a power rod; 24. a fan blade; 25. a motor; 26. a third bevel gear; 27. a fourth bevel gear; 28. a carrier bar; 29. a first reciprocating lever; 30. a second reciprocating lever; 31. a rack; 32. a round bar; 33. a transmission gear; 34. a second bevel gear; 35. a first bevel gear; 36. a swing lever; 37. a connecting rod; 38. a cross bar; 39. a shunt tube; 40. a sponge cushion; 41. a liquid outlet pipe; 42. a collection box; 43. a first impeller shaft; 44. a second impeller shaft; 45. an impeller; 46. a belt; 47. a connecting rod; 48. a return pipe; 49. and (4) controlling the valve.

Detailed Description

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

Referring to fig. 1-6, a multi-station closed extrusion cold-heading forging machine comprises two supports 1, wherein the two supports 1 are fixedly provided with a same mold 2, the top of the mold 2 is provided with a mold cavity 3, one side of a fixed plate 8 is fixedly arranged on each of the two supports 1, the other side of each of the two fixed plates 8 is fixedly provided with a same cooling liquid tank 9, a gas pipe 20 is arranged in each cooling liquid tank 9, one end of each gas pipe 20 is fixedly communicated with one end of a corrugated pipe 18, the other end of each corrugated pipe 18 is fixedly communicated with a gas blowing cover 19, each gas blowing cover 19 is positioned below the mold 2, the outer side of the mold 2 is fixedly provided with a plurality of radiating fins 7, the mold 2 is provided with a cooling cavity 11, one side of the mold 2 is fixedly communicated with a hollow column 12, the other side of the mold 2 is fixedly communicated with a liquid outlet pipe 41, the hollow column 12 is provided with a liquid pumping mechanism, and one side of the mold 2 is provided with a swinging mechanism, the other end of the gas pipe 20 is connected with a gas supply mechanism.

In the invention, the liquid pumping mechanism comprises a liquid pumping pipe 10, a piston 13, a push-pull rod 14, a moving plate 15, a first check valve 16 and a second check valve 17, wherein the piston 13 is slidably arranged in the hollow column 12, one end of the push-pull rod 14 is fixedly connected with the piston 13, the other end of the push-pull rod 14 extends to the outer side of the hollow column 12 and is fixedly connected with the moving plate 15, the flow direction of the first check valve 16 is from left to right, and the flow direction of the second check valve 17 is from bottom to top.

In the invention, one end of a liquid suction pipe 10 is positioned in a cooling liquid box 9, one end and the outer side of a hollow column 12 are respectively provided with a liquid inlet and a liquid outlet, a first check valve 16 is arranged in the liquid outlet, a second check valve 17 is arranged in the liquid inlet, the other end of the liquid suction pipe 10 is fixedly communicated with the liquid inlet, one side of a mould 2 is provided with a diversion hole, the diversion hole is communicated with the liquid outlet and a cooling cavity 11, a diversion pipe 39 is fixedly communicated with the inner wall of the bottom of the diversion hole, a sponge pad 40 is fixedly arranged at an opening at the top end of an air blowing cover 19, one end of the diversion pipe 39 is inserted into the sponge pad 40, a plurality of humidifying holes are arranged at the part of the diversion pipe 39 positioned in the sponge pad 40, the liquid suction pipe 10 extracts the cooling liquid, and the sponge pad 40 can absorb the cooling liquid, so that air has moisture when passing through the sponge pad 40.

In the invention, the swing mechanism comprises a swing rod 36, a connecting rod 37 and a cross rod 38, wherein the swing rod 36 is rotatably arranged at one side of the mould 2, one end of the connecting rod 37 is fixedly connected with the swing rod 36, the other end of the connecting rod 37 is fixedly connected with the cross rod 38, one end of the cross rod 38 is fixedly connected with the air blowing cover 19, and the air blowing cover 19 is driven to move by the cross rod 38.

In the invention, one end of a swinging rod 36 is fixedly provided with a first bevel gear 35, a second bevel gear 34 is meshed with the first bevel gear 35, the top of the second bevel gear 34 is fixedly provided with a round rod 32, the round rod 32 is rotatably arranged on the hollow column 12, a transmission gear 33 is fixedly sleeved on the outer side of the round rod 32, a rack 31 is meshed with the transmission gear 33, one end of the rack 31 is fixedly connected with the movable plate 15, and the transmission gear 33 can be rotated by the movement of the rack 31.

In the invention, the air supply mechanism comprises an air supply cover 22, a power rod 23, fan blades 24 and a motor 25, the motor 25 is fixedly arranged on one side of the bracket 1, an output shaft of the motor 25 is fixedly communicated with one end of the power rod 23, the other end of the power rod 23 extends into the air supply cover 22 and is fixedly connected with the fan blades 24, the air supply cover 22 is fixedly communicated with one end of an air supply pipe 20, air is supplied through the air supply pipe 20, and the power rod 23 drives the fan blades 24 to rotate to draw outside air.

In the invention, a third bevel gear 26 is fixedly sleeved on the outer side of the power rod 23, a fourth bevel gear 27 is meshed on the third bevel gear 26, a bearing rod 28 is fixedly installed at the top of the fourth bevel gear 27, and the bearing rod 28 is rotatably installed on the fixing plate 8.

In the invention, a first reciprocating rod 29 is fixedly arranged at the top of the bearing rod 28, a second reciprocating rod 30 is rotatably arranged at one end of the first reciprocating rod 29, one end of the second reciprocating rod 30 is rotatably connected with one side of the moving plate 15, and the bearing rod 28, the first reciprocating rod 29 and the second reciprocating rod 30 form a common reciprocating mechanism.

In the invention, the same mounting frame 4 is fixedly mounted at the tops of two supports 1, a hydraulic cylinder 5 is fixedly mounted on the mounting frame 4, a pier head 6 is fixedly connected to an output shaft of the hydraulic cylinder 5, a refrigerating sheet 21 is fixedly mounted at the bottom of a coolant tank 9, and the coolant is cooled by the refrigerating sheet 21.

In the invention, a collecting box 42 is fixedly arranged on one side of a bracket 1, one end of a liquid outlet pipe 41 is fixedly communicated with the top of the collecting box 42, one side of the collecting box 42 is rotatably provided with a first impeller shaft 43 and a second impeller shaft 44, one ends of the first impeller shaft 43 and the second impeller shaft 44 are fixedly provided with impellers 45, the outer sides of the first impeller shaft 43 and the second impeller shaft 44 are fixedly sleeved with belt wheels, the two belt wheels are positioned on the outer side of the collecting box 42, the two belt wheels are provided with a same belt 46 in a transmission manner, one side of the collecting box 42 is fixedly communicated with one end of a return pipe 48, the other end of the return pipe 48 is fixedly communicated with the top of a cooling liquid box 9, a control valve 49 is arranged on the return pipe 48, the first impeller shaft 43 is concentric with a swinging rod 36, one end of the first impeller shaft 43 is fixedly provided with a connecting rod 47, one end of the connecting rod 47 is fixedly connected with a blowing cover 19, a temperature sensor is arranged in the collecting box 42, the temperature sensor is electrically connected to the control valve 49, and detects the temperature of the cooling liquid in the collection tank 42 by the temperature sensor.

In the invention, when cooling is needed, the motor 25 is started through a switch, the motor 25 drives the power rod 23 to rotate, the power rod 23 drives the third bevel gear 26 and the fan blade 24 to rotate, the third bevel gear 26 drives the fourth bevel gear 27 to rotate, the fourth bevel gear 27 drives the bearing rod 28 to rotate, the bearing rod 28 drives the first reciprocating rod 29 to rotate, the first reciprocating rod 29 drives the second reciprocating rod 30 to move, the second reciprocating rod 30 drives the moving plate 15 to horizontally reciprocate, the moving plate 15 drives the push-pull rod 14 to reciprocate, the push-pull rod 14 drives the piston 13 to reciprocate, cooling liquid is extracted through the liquid extracting pipe 10, the cooling liquid enters the cooling cavity 11 through the liquid outlet and the flow dividing hole, and when the cooling liquid passes through the flow dividing hole, part of the cooling liquid enters the flow dividing pipe 39 and is injected onto the sponge pad 40 through the flow dividing pipe 39, and the cooling liquid flows through the cooling cavity 11 to exchange heat with the mold 2, the temperature is reduced for the first time, the fan blades 24 rotate to blow air rightwards, the air is conveyed through the air conveying pipe 20, the air passing through the air conveying pipe 20 is cooled through the cooling liquid in the cooling liquid tank 9, the cooled air is blown out through the air blowing cover 19, in the air blowing process, the air passes through the humid air of the sponge cushion 40 and blows towards the lower surface of the mold 2, so that the moisture is attached to the lower surface of the mold 2, then in the working process of the mold 2, the moisture attached to the surface is evaporated through the heat emitted by the mold 2 to achieve the secondary temperature reduction of the mold, the cooling liquid after heat exchange flows into the collecting tank 42 from the liquid outlet pipe 41, the reciprocating motion of the movable plate 15 drives the rack 31 to reciprocate, so that the transmission gear 33 meshed with the rack 31 rotates forwards and backwards, the transmission gear 33 drives the round rod 32 to rotate forwards and backwards, the round rod 32 drives the second bevel gear 34 to rotate forwards and backwards, the second bevel gear 34 drives the first bevel gear 35 to rotate forward and backward, the first bevel gear 35 drives the swing rod 36 to rotate forward and backward, the swing rod 36 drives the connecting rod 37 to swing forward and backward, the connecting rod 37 drives the air blowing cover 19 to swing forward and backward through the cross rod 38, the cooling range is increased, the cooling is more uniform, the air blowing cover 19 can also drive the first impeller shaft 43 on the side wall of the collecting box 42 to rotate in the swinging process, the second impeller shaft 44 synchronously rotates through the transmission of the two belt wheels and the belt 46, the first impeller shaft 43 and the second impeller shaft 44 drive the two impellers 45 to rotate, the impellers 45 drive the high-temperature cooling liquid in the collecting box 42 after heat exchange to perform vortex flow so as to accelerate the heat dissipation of the high-temperature cooling liquid, when the temperature sensor detects that the high temperature coolant has decreased to the set temperature, the temperature sensor sends a control signal to open the control valve 49, so that the coolant cooled in the collection tank 42 flows back from the return pipe 48 into the coolant tank 9.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The multi-station closed extrusion cold-heading forging machine comprises two supports (1) and is characterized in that the two supports (1) are fixedly provided with the same die (2), the top of the die (2) is provided with a die cavity (3), one side of a fixed plate (8) is fixedly arranged on each of the two supports (1), the other side of each of the two fixed plates (8) is fixedly provided with the same cooling liquid tank (9), a gas pipe (20) is arranged in the cooling liquid tank (9), one end of the gas pipe (20) is fixedly communicated with one end of a corrugated pipe (18), the other end of the corrugated pipe (18) is fixedly communicated with a blowing cover (19), the blowing cover (19) is positioned below the die (2), the outer side of the die (2) is fixedly provided with a plurality of radiating fins (7), a cooling cavity (11) is arranged on the die (2), one side of the die (2) is fixedly communicated with a hollow column (12), a liquid outlet pipe (41) is fixedly communicated with the other side of the die (2), a liquid pumping mechanism is arranged on the hollow column (12), a swinging mechanism is arranged on one side of the die (2), and an air feeding mechanism is connected with the other end of the air conveying pipe (20).

2. A multi-station block extrusion cold heading machine according to claim 1, wherein the liquid pumping mechanism comprises a liquid pumping tube (10), a piston (13), a push-pull rod (14), a moving plate (15), a first check valve (16) and a second check valve (17), the piston (13) is slidably mounted in the hollow column (12), one end of the push-pull rod (14) is fixedly connected with the piston (13), and the other end of the push-pull rod (14) extends to the outside of the hollow column (12) and is fixedly connected with the moving plate (15).

3. The multi-station blocking extrusion cold-heading forging machine as claimed in claim 2, wherein one end of the liquid suction pipe (10) is located in the cooling liquid tank (9), one end and the outer side of the hollow column (12) are respectively provided with a liquid inlet and a liquid outlet, the first check valve (16) is arranged in the liquid outlet, the second check valve (17) is arranged in the liquid inlet, the other end of the liquid suction pipe (10) is fixedly communicated with the liquid inlet, one side of the die (2) is provided with a diversion hole, the diversion hole is communicated with the liquid outlet and the cooling cavity (11), a diversion pipe (39) is fixedly communicated with the inner wall of the bottom of the diversion hole, a sponge pad (40) is fixedly installed at the top end opening of the air blowing cover (19), one end of the diversion pipe (39) is inserted into the sponge pad (40), and a plurality of humidifying holes are formed in the part of the diversion pipe (39) located in the sponge pad (40).

4. The multi-station block extrusion cold heading machine according to claim 1, wherein the swing mechanism comprises a swing rod (36), a connecting rod (37) and a cross rod (38), the swing rod (36) is rotatably mounted on one side of the die (2), one end of the connecting rod (37) is fixedly connected with the swing rod (36), the other end of the connecting rod (37) is fixedly connected with the cross rod (38), and one end of the cross rod (38) is fixedly connected with the blowing cover (19).

5. The multi-station blocking extrusion cold heading forging machine according to claim 4, wherein a first bevel gear (35) is fixedly mounted at one end of the swinging rod (36), a second bevel gear (34) is meshed on the first bevel gear (35), a round rod (32) is fixedly mounted at the top of the second bevel gear (34), the round rod (32) is rotatably mounted on the hollow column (12), a transmission gear (33) is fixedly sleeved on the outer side of the round rod (32), a rack (31) is meshed on the transmission gear (33), and one end of the rack (31) is fixedly connected with the moving plate (15).

6. The multi-station blocking extrusion cold-heading forging machine according to claim 1, wherein the air supply mechanism comprises an air supply cover (22), a power rod (23), fan blades (24) and a motor (25), the motor (25) is fixedly installed on one side of the support (1), an output shaft of the motor (25) is fixedly communicated with one end of the power rod (23), the other end of the power rod (23) extends into the air supply cover (22) and is fixedly connected with the fan blades (24), and the air supply cover (22) is fixedly communicated with one end of the air supply pipe (20).

7. The multi-station block extrusion cold-heading forging machine according to claim 6, wherein a third bevel gear (26) is fixedly sleeved on the outer side of the power rod (23), a fourth bevel gear (27) is meshed on the third bevel gear (26), a bearing rod (28) is fixedly installed at the top of the fourth bevel gear (27), and the bearing rod (28) is rotatably installed on the fixing plate (8).

8. A multi-station block extrusion cold heading machine according to claim 7, wherein the top of the carrier bar (28) is fixedly provided with a first reciprocating bar (29), one end of the first reciprocating bar (29) is rotatably provided with a second reciprocating bar (30), and one end of the second reciprocating bar (30) is rotatably connected with one side of the moving plate (15).

9. The multi-station blocking extrusion cold-heading forging machine according to claim 1, wherein the same mounting frame (4) is fixedly mounted at the tops of the two supports (1), a hydraulic cylinder (5) is fixedly mounted on the mounting frame (4), a pier head (6) is fixedly connected to an output shaft of the hydraulic cylinder (5), and a refrigerating sheet (21) is fixedly mounted at the bottom of the coolant tank (9).

10. The multi-station block extrusion cold-heading forging machine as claimed in claim 1, wherein a collection box (42) is fixedly mounted on one side of the support (1), one end of the liquid outlet pipe (41) is fixedly communicated with the top of the collection box (42), a first impeller shaft (43) and a second impeller shaft (44) are rotatably mounted on one side of the collection box (42), an impeller (45) is fixedly mounted on one end of each of the first impeller shaft (43) and the second impeller shaft (44), belt wheels are fixedly sleeved on the outer sides of the first impeller shaft (43) and the second impeller shaft (44), the two belt wheels are both located on the outer side of the collection box (42), the same belt (46) is mounted on the two belt wheels in a transmission manner, one end of a return pipe (48) is fixedly communicated with one side of the collection box (42), and the other end of the return pipe (48) is fixedly communicated with the top of the cooling liquid tank (9), the backflow pipe (48) is provided with a control valve (49), the first impeller shaft (43) is concentric with the swinging rod (36), one end of the first impeller shaft (43) is fixedly provided with a connecting rod (47), one end of the connecting rod (47) is fixedly connected with the blowing cover (19), the collecting box (42) is internally provided with a temperature sensor, and the temperature sensor is electrically connected with the control valve (49).