A spinning tube shrinking machine

Abstract

The present invention discloses a spinning tube shrinking machine, which includes a frame, a spinning assembly, a main motor, a driving wheel, a driven wheel, an auxiliary motor, a speed reducer, a main transmission shaft, an auxiliary transmission shaft and a first driving gear. The spinning assembly is installed on the frame, the main motor is fixed inside the frame, a main motor shaft is provided on the main motor, the driving wheel is fixed on the main motor shaft, the first driving gear is fixed on the main transmission shaft, the driven wheel is fixed on the main transmission shaft, the main transmission shaft is fixed on the frame through a pedestal bearing, the auxiliary motor is connected to the input end of the speed reducer, and the speed reducer is fixed on the frame. The auxiliary transmission shaft is connected to the auxiliary motor. The spinning tube shrinking machine made by the above technical solution uses three groups of spinning dies to rotate relatively for spinning. The outer surface of the spinning die is a conical surface, and the conical surface end of the inlet conical surface makes the contact surface between the spinning die and the heating tube long during the tube shrinking process, increasing the stability of the tube shrinking process.

Description

Technical Field

[0001] The present invention relates to the technical field of tube shrinking machines, and particularly to a spinning tube shrinking machine. Background Art

[0002] Traditional tube shrinking machines adopt a rolling working principle, and drive the heating tube forward through the traction of the driving wheel and the driven wheel during the rolling process. However, the following problems exist:

[0003] (1) In the traditional rolling tube shrinking method, since the two rollers are tangent lines during the rolling process, the stability is poor.

[0004] (2) The production debugging is cumbersome. For each change of product, re-debugging is required, and it needs to be adjusted according to the empirical value. Therefore, high requirements are imposed on the skill level of workers.

[0005] (3) The rolling method requires a large torque to complete. Therefore, a large torque motor and a high reduction ratio reducer are needed, which increases the cost of the equipment, and the production process generates a lot of noise, which will cause certain harm to the human body.

[0006] (4) Due to the need for a large torque, the rolling die is greatly worn. Summary of the Invention

[0007] In order to solve the above problems, the present invention provides a spinning tube shrinking machine, which uses three groups of spinning dies to rotate relative to each other for spinning. The outer surface of the spinning die is a conical surface, and the conical surface end of the inlet conical surface makes the contact surface between the spinning die and the heating tube long during the tube shrinking process, increasing the stability of the tube shrinking process.

[0008] A spinning tube shrinking machine in the present invention includes a frame, a spinning assembly, a main motor, a driving wheel, a driven wheel, an auxiliary motor, a reducer, a main transmission shaft, an auxiliary transmission shaft, and a first driving gear. The spinning assembly is installed on the frame. The main motor is fixed inside the frame. A main motor shaft is provided on the main motor. The driving wheel is fixed on the main motor shaft. The first driving gear is fixed on the main transmission shaft. The driven wheel is fixed on the main transmission shaft. The main transmission shaft is fixed on the frame through a pedestal bearing. The auxiliary motor is connected to the input end of the reducer. The reducer is fixed on the frame. The auxiliary transmission shaft is connected to the auxiliary motor.

[0009] In the above solution, the spinning assembly includes a machine base, a traction rolling mechanism, and a spinning mechanism. The traction rolling mechanism is connected to the machine base, and the spinning mechanism is connected to the machine base. The traction rolling mechanism includes a traction driving shaft, a traction driven shaft, a traction driven wheel, a roller bearing, a traction roller, and a traction bearing. The traction driven shaft is connected to the roller bearing, the traction driven shaft is installed on the machine base, the traction bearing is fixed on the machine base, the traction roller is fixed on the traction driving shaft, the traction driving shaft is connected to the traction bearing, and one end of the traction driving shaft is connected to the output end of a speed reducer.

[0010] In the above solution, a chute is provided on the machine base, and the traction driven shaft is installed on the chute.

[0011] In the above solution, the spinning mechanism includes a spinning base, a spinning shaft, a spinning die, a second driving gear, a spinning outer bearing, a spinning inner bearing, a driven gear, and a sealing plate. The driven gear is fixed on the outer ring of the spinning base. The spinning base is connected to the spinning outer bearing, the spinning outer bearing is connected to the machine base, the spinning shaft is connected to the spinning inner bearing, the outer surface of the spinning inner bearing is connected to the inner surface of the spinning die, one end of the spinning shaft is connected to the sealing plate, the end of the spinning shaft away from the sealing plate is connected to the spinning base, and the sealing plate is fixed at the end of the spinning base away from the traction rolling mechanism.

[0012] In the above solution, the outer surface of the spinning die is a conical surface.

[0013] In the above solution, there are three spinning dies and three groups of spinning inner bearings. The outer surfaces of the three groups of spinning inner bearings are respectively connected to the inner surfaces of the three groups of spinning dies.

[0014] In the above solution, there are multiple spinning assemblies.

[0015] The advantages and beneficial effects of the present invention are as follows: The present invention provides a spinning type pipe shrinking machine for shrinking the diameter of an electric heating pipe, which improves the density of magnesium oxide powder in the electric heating pipe. It uses three groups of spinning dies to rotate relatively for spinning. The outer surface of the spinning die is a conical surface, and at the conical end of the inlet conical surface, the contact surface between the spinning die and the heating pipe is long during the pipe shrinking process, increasing the stability of the pipe shrinking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1This is a schematic structural diagram of the present invention.

[0018] Figure 2 This is a schematic structural diagram of the present invention.

[0019] Figure 3 This is the front view of the present invention.

[0020] Figure 4 This is an exploded view of the spinning assembly in the present invention.

[0021] Figure 5 This is the schematic diagram of the heat pipe shrinking tube principle in the present invention.

[0022] In the figure: 1. Frame; 2. Spinning assembly; 3. Main motor; 4. Driving wheel; 5. Driven wheel; 6. Auxiliary motor; 7. Reducer; 8. Main transmission shaft; 9. Auxiliary transmission shaft; 10. First driving gear; 11. Machine base; 12. Traction driving shaft; 13. Traction driven shaft; 14. Traction driven wheel; 15. Roller bearing; 16. Traction roller; 17. Traction bearing; 18. Spinning seat; 19. Spinning shaft; 20. Spinning die; 21. Second driving gear; 22. Outer spinning bearing; 23. Inner spinning bearing; 24. Driven gear; 25. Sealing plate; 26. Heat pipe inlet Detailed implementation manners

[0023] The following combines the accompanying drawings and embodiments to further describe the detailed implementation manners of the present invention. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0024] As Figures 1 - 5 shown, the present invention is a spinning type tube shrinking machine, including a frame 1, a spinning assembly 2, a main motor 3, a driving wheel 4, a driven wheel 5, an auxiliary motor 6, a reducer 7, a main transmission shaft 8, an auxiliary transmission shaft 9, and a first driving gear 10. The spinning assembly 2 is installed on the frame 1. The main motor 3 is fixed inside the frame 1. A main motor shaft is provided on the main motor 3. The driving wheel 4 is fixed on the main motor shaft. The first driving gear 10 is fixed on the main transmission shaft 8. The driven wheel 5 is fixed on the main transmission shaft 8. The main transmission shaft 8 is fixed on the frame 1 through a pedestal bearing. The auxiliary motor 6 is connected to the input end of the reducer 7. The reducer 7 is fixed on the frame 1. The auxiliary transmission shaft 9 is connected to the auxiliary motor 6.

[0025] The spinning assembly 2 includes a machine base 11, a traction rolling mechanism and a spinning mechanism. The traction rolling mechanism is connected to the machine base 11, and the spinning mechanism is connected to the machine base 11. The traction rolling mechanism includes a traction driving shaft 12, a traction driven shaft 13, a traction driven wheel 14, a roller bearing 15, a traction roller 16 and a traction bearing 17. The traction driven shaft 13 is connected to the roller bearing 15. A chute is provided on the machine base 11, and the traction driven shaft 13 is installed on the chute. The traction bearing 17 is fixed on the machine base 11. The traction roller 16 is fixed on the traction driving shaft 12. The traction driving shaft 12 is connected to the traction bearing 17. One end of the traction driving shaft 12 is connected to the output end of the speed reducer 7.

[0026] The spinning mechanism includes a spinning base 18, a spinning shaft 19, a spinning die 20, a second driving gear 21, a spinning outer bearing 22, a spinning inner bearing 23, a driven gear 24 and a sealing plate 25. The driven gear 24 is fixed on the outer ring of the spinning base 18. The spinning base 18 is connected to the spinning outer bearing 22. The spinning outer bearing 22 is connected to the machine base 11. The spinning shaft 19 is connected to the spinning inner bearing 23. The outer surface of the spinning inner bearing 23 is connected to the inner surface of the spinning die 20. One end of the spinning shaft 19 is connected to the sealing plate 25. The end of the spinning shaft 19 away from the sealing plate 25 is connected to the spinning base 18. The sealing plate 25 is fixed at one end of the spinning base 18 away from the traction rolling mechanism.

[0027] Specifically, the outer surface of the spinning die 20 is a conical surface, which makes the contact surface between the spinning die 20 and the heating tube longer during the pipe shrinking process. There are three spinning dies 20 and three groups of spinning inner bearings. The outer surfaces of the three groups of spinning inner bearings are respectively connected to the inner surfaces of the three groups of spinning dies.

[0028] There are multiple spinning assemblies 2. Among them, the first few groups of spinning assemblies are used for pipe shrinking and diameter reduction, and the last few groups of spinning assemblies can be used for shaping and straightening the electric heating tubes.

[0029] A heating tube inlet is also provided on the frame 1. The heating tube is put in from the inlet and sent to the spinning assembly 2 for pipe shrinking and diameter reduction.

[0030] The working principle of the above technical solution:

[0031] Put the heating tube into the heating tube inlet 26. The auxiliary motor 6 drives the traction roller 16 and the traction driven wheel 14 to rotate through the speed reducer 7, thereby driving the heating tube to move. The main motor 3 drives the first driving gear 10 fixed on the main transmission shaft 8 to rotate through the driving wheel 4 and the driven wheel 5. The first driving gear 10 drives the driven gear 24 to rotate. During the rotation process, the driven gear 24 drives the spinning base 18 to rotate, generating relative rotation with the three groups of spinning dies. The outer surface of the spinning die 20 is a conical surface. At the conical end of the inlet conical surface, during the pipe shrinking process, the contact surface between the spinning die 20 and the heating tube is long, increasing the stability of the pipe shrinking.

[0032] Advantages and beneficial effects of the present invention:

[0033] In the spinning tube shrinking machine of the present invention, the diameter of the electric heating tube is reduced by tube shrinking, which improves the density of the magnesium oxide powder in the electric heating tube. It uses three groups of spinning dies to rotate relatively for spinning. The outer surface of the spinning die is a conical surface, and the conical surface end of the inlet conical surface makes the contact surface between the spinning die and the heating tube long during the tube shrinking process, increasing the stability of the tube shrinking process.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spinning tube shrinking machine, characterized in that, It includes a frame, a spinning assembly, a main motor, a driving wheel, a driven wheel, an auxiliary motor, a speed reducer, a main transmission shaft, an auxiliary transmission shaft and a first driving gear. The spinning assembly is installed on the frame. The main motor is fixed inside the frame. There is a main motor shaft on the main motor. The driving wheel is fixed on the main motor shaft. The first driving gear is fixed on the main transmission shaft. The driven wheel is fixed on the main transmission shaft. The main transmission shaft is fixed on the frame through a pedestal bearing. The auxiliary motor is connected to the input end of the speed reducer. The speed reducer is fixed on the frame. The auxiliary transmission shaft is connected to the auxiliary motor; The spinning assembly includes a base, a traction rolling mechanism and a spinning mechanism. The traction rolling mechanism is connected to the base. The spinning mechanism is connected to the base. The traction rolling mechanism includes a traction driving shaft, a traction driven shaft, a traction driven wheel, a roller bearing, a traction roller and a traction bearing. The traction driven shaft is connected to the roller bearing. The traction driven shaft is installed on the base. The traction bearing is fixed on the base. The traction roller is fixed on the traction driving shaft. The traction driving shaft is connected to the traction bearing. One end of the traction driving shaft is connected to the output end of the speed reducer; The spinning mechanism includes a spinning seat, a spinning shaft, a spinning die, a second driving gear, a spinning outer bearing, a spinning inner bearing, a driven gear and a sealing plate. The driven gear is fixed on the outer ring of the spinning seat. The spinning seat is connected to the spinning outer bearing. The spinning outer bearing is connected to the base. The spinning shaft is connected to the spinning inner bearing. The outer surface of the spinning inner bearing is connected to the inner surface of the spinning die. One end of the spinning shaft is connected to the sealing plate. The end of the spinning shaft away from the sealing plate is connected to the spinning seat. The sealing plate is fixed at one end of the spinning seat away from the traction rolling mechanism.

2. The spinning tube shrinking machine according to claim 1, characterized in that, There is a chute on the base. The traction driven shaft is installed on the chute.

3. The spinning tube shrinking machine according to claim 1, characterized in that, The outer surface of the spinning die is a conical surface.

4. The spinning tube shrinking machine according to claim 3, characterized in that, There are three spinning dies and three groups of spinning inner bearings. The outer surfaces of the three groups of spinning inner bearings are respectively connected to the inner surfaces of the three groups of spinning dies.

5. The spinning tube shrinking machine according to claim 1, characterized in that, There are multiple spinning assemblies.

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