Rolling loosening machine for thin-wall capillary tube production
By using hydraulic rod, motor drive and gear transmission design in the rolling machine, the problem of out-of-synchronization of pressing and rolling forming in the prior art is solved, improving working efficiency and reducing wear.
Patent Information
- Application Number
- CN202420226055.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-01-31
AI Technical Summary
During the extrusion and rolling process of existing rolling machines, the synchronization of pressing and rolling cannot be achieved, resulting in low working efficiency and severe wear between the pressing roller and the capillary.
A rolling machine for thin-wall capillary production is designed, using a hydraulic rod and a motor-driven pressure roller system to achieve synchronous rotation of the pressure roller through gear transmission, reduce frictional loss, and avoid the occurrence of jamming through the cooperation of springs and fixed columns.
It improves power transmission efficiency, reduces wear between the pressing roller and capillary, realizes synchronousness of pressing and rolling forming, and improves working efficiency and reliability.
Smart Images
Figure CN222625795U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolling machines, and more specifically, to a rolling machine for producing thin-wall capillaries. Background Art
[0002] Metal thin-walled capillaries are widely used. After the preliminary processing, they need to be extruded and rolled using a loosening machine. The loosening wheel of the loosening machine exerts pressure on the capillary, causing the capillary to rebound after being compressed, and the inner and outer diameters rebound by about 1% at the same time, thereby forming a gap between the capillary and the long core rod, and the long core rod can be easily pulled out. The existing loosening machine has developed into three groups of rollers with equal angles and provide support for the capillary, but the rollers located in the lower two groups cannot achieve synchronous power connection, that is, a group of rollers with a power source is used to press and roll the capillary to generate friction and drive other passive rollers. This transmission method that uses friction to drive each other requires consumption of wear from the capillary surface to achieve, and cannot achieve synchronization of pressing and rolling forming, and has low work efficiency. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, the utility model provides a rolling machine for producing thin-wall capillaries, which has the advantages of synchronous cavity and high working efficiency.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rolling machine for thin-wall capillary production, comprising a base, a pillar and a top plate, a hydraulic rod 1 is installed at the bottom of the top plate, a connecting plate 1 is fixedly installed at the telescopic end of the hydraulic rod 1, a pressure roller 1 is rotatably installed inside the connecting plate 1, a motor is installed on the front of the connecting plate 1, the motor is used to drive the pressure roller 1 to rotate, hydraulic rods 2 are installed on the left and right sides of the top of the base, a connecting plate 2 is fixedly installed at the telescopic end of the hydraulic rod 2, a pressure roller 2 is rotatably installed inside the connecting plate 2, a gear 1 is fixedly installed at both the front and rear ends of the pressure roller 2, a fixed column is fixedly installed on the top of the base, a support plate and a spring are movably sleeved on the outer surface of the fixed column, a connecting seat is fixedly installed on the front and rear sides of the support plate, a gear 2 is rotatably installed inside the connecting seat, and the gear 2 is meshed with the gear 1.
[0005] As a preferred technical solution of the utility model, the pillars are arranged in two groups and are symmetrically installed on the left and right sides of the top of the base, the top plate is fixedly installed on the top of the pillars, the pressure roller one and the two groups of pressure rollers two located on the lower side are distributed at equal angles, and the stainless steel capillary is pressed and placed between the pressure roller one and the two groups of pressure rollers two.
[0006] As a preferred technical solution of the utility model, the fixed columns are arranged in three groups and are distributed in depth on the top of the base, a protrusion is provided on the top of the fixed column, the two ends of the spring are elastically connected to the support plate and the protrusion respectively, and the gear 2 abuts and meshes with the left and right groups of gears 1 upward.
[0007] As a preferred technical solution of the utility model, the axes of the hydraulic rod 1 and the two groups of hydraulic rods 2 located at the lower side are distributed at an angle of 120° to each other, and the diameter of the pressure roller 2 is greater than the diameter of the gear 1.
[0008] As a preferred technical solution of the utility model, the diameter of the gear 2 is greater than the diameter of the gear 1, and the vertical tangent of the gear 2 is located at the outer edge of the gear 1 on the left and right sides respectively.
[0009] As a preferred technical solution of the utility model, the tops of the left and right sides of the inner wall of the base are both provided with inclined surfaces, and the second hydraulic rod is fixedly installed on the inclined surfaces.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] 1. The device has been redesigned to improve the power transmission efficiency generated when the stainless steel capillary is squeezed, and reduce the wear between the pressure roller 2 and the stainless steel capillary. The hydraulic rod 1 and the hydraulic rod 2 are provided to drive the pressure roller 1 and the pressure roller 2 to move centripetally. When the stainless steel capillary is squeezed by the pressure roller 1 and the hydraulic rod 2, a rotational power is generated by the motor drive to drive the stainless steel capillary to rotate. The stainless steel capillary drives the pressure roller 2 to rotate through the friction between the stainless steel capillary and the pressure roller 2. The two groups of pressure rollers are gear-driven by the gear 1 and the gear 2, so that the stainless steel capillary does not need to fully utilize the friction between the stainless steel capillary and the pressure roller 2 to drive the pressure roller 2 to rotate, thereby greatly reducing the wear between the two.
[0012] 2. At the same time, by providing a fixed column and a spring to generate an upward pulling force on the support plate, the connecting seat and the gear 2 can always be in contact and mesh with the two sets of gears 1 upwards. In this process, even if the gear 1 and the pressure roller 2 move under the drive of the hydraulic rod 2, they can also be passively rotated and adapted through the meshing between the gear 1 and the gear 2 to prevent the occurrence of jamming, thereby effectively improving the working efficiency and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 It is a front perspective schematic diagram of the structure of the utility model;
[0015] Figure 3 For this utility model Figure 2A magnified schematic diagram of the structure at center A;
[0016] Figure 4 It is a side cutaway schematic diagram of the structure of the utility model;
[0017] Figure 5 It is a schematic diagram of the coordination of a hydraulic rod 1, a connecting plate 1, a pressure roller 1, a motor, a stainless steel capillary, a connecting plate 2, a pressure roller 2, a gear 1, a fixing column, a support plate, a spring, a connecting seat and a gear 2 of the utility model.
[0018] In the figure: 1. base; 2. support; 3. top plate; 4. hydraulic rod 1; 5. connecting plate 1; 6. pressure roller 1; 7. motor; 8. stainless steel capillary; 9. hydraulic rod 2; 10. connecting plate 2; 11. pressure roller 2; 12. gear 1; 13. fixed column; 14. support plate; 15. spring; 16. connecting seat; 17. gear 2. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] like Figures 1 to 5 As shown, the utility model provides a rolling machine for thin-wall capillary production, including a base 1, a pillar 2 and a top plate 3, a hydraulic rod 4 is installed at the bottom of the top plate 3, a connecting plate 5 is fixedly installed at the telescopic end of the hydraulic rod 4, a pressure roller 6 is rotatably installed inside the connecting plate 5, a motor 7 is installed on the front of the connecting plate 5, and the motor 7 is used to drive the pressure roller 6 to rotate, hydraulic rods 29 are installed on the left and right sides of the top of the base 1, a connecting plate 2 10 is fixedly installed at the telescopic end of the hydraulic rod 29, a pressure roller 2 11 is rotatably installed inside the connecting plate 2 10, and a gear 12 is fixedly installed at both the front and rear ends of the pressure roller 2 11, a fixed column 13 is fixedly installed on the top of the base 1, a support plate 14 and a spring 15 are movably sleeved on the outer surface of the fixed column 13, a connecting seat 16 is fixedly installed on the front and rear sides of the support plate 14, a gear 2 17 is rotatably installed inside the connecting seat 16, and the gear 2 17 is meshed with the gear 12;
[0021] The device has been redesigned to improve the power transmission efficiency generated when the stainless steel capillary 8 is squeezed, and reduce the wear between the pressure roller 2 11 and the stainless steel capillary 8. The hydraulic rod 1 4 and the hydraulic rod 2 9 are provided to drive the pressure roller 1 6 and the pressure roller 2 11 to make centripetal movement. When the stainless steel capillary 8 is squeezed by the pressure roller 1 6 and the hydraulic rod 2 9, the motor 7 is driven to generate rotational power to drive the stainless steel capillary 8 to rotate. The stainless steel capillary 8 drives the pressure roller 2 11 to rotate through the friction between the stainless steel capillary 8 and the pressure roller 2 11. The two groups of pressure rollers 11 are gear-driven by the gear 1 12 and the gear 2 17, so that the stainless steel capillary 8 does not need to fully utilize the friction between the pressure roller 2 11 to drive the pressure roller 2 11 to rotate, thereby greatly reducing the wear between the two.
[0022] At the same time, by providing a fixed column 13 and a spring 15 to generate an upward pulling force on the support plate 14, the connecting seat 16 and the gear 2 17 can always be in contact and mesh with the two sets of gears 12 upward, and in this process, even if the gear 12 and the pressure roller 2 11 move under the drive of the hydraulic rod 2 9, they can be passively rotated and adapted through the meshing between the gear 12 and the gear 2 17 to prevent the occurrence of jamming, thereby effectively improving the working efficiency and reliability of the device.
[0023] The pillars 2 are provided in two groups and are symmetrically installed on the left and right sides of the top of the base 1. The top plate 3 is fixedly installed on the top of the pillars 2. The pressure roller 1 6 and the two groups of pressure rollers 2 11 located at the lower side are distributed at equal angles. The stainless steel capillary 8 is pressed and placed between the pressure roller 1 6 and the two groups of pressure rollers 2 11.
[0024] The pressure roller 1 6 is an active rotating component, and the pressure roller 2 11 is a passive rotating component. The two groups of pressure rollers 11 symmetrically distributed on the left and right can provide synchronous support for the stainless steel capillary 8 and can also adapt to stainless steel capillaries 8 of different sizes.
[0025] The fixing columns 13 are arranged in three groups and are distributed in depth at the top of the base 1. A protrusion is arranged at the top of the fixing column 13. The two ends of the spring 15 are elastically connected to the support plate 14 and the protrusion respectively. The gear 2 17 abuts and meshes with the left and right groups of gear 1 12 upward.
[0026] The spring 15 synchronously and elastically connects the connecting seat 16, gear 2 17 and spring 15 to produce an upward thrust all the time, maintaining the abutment and meshing between gear 2 17 and gear 1 12. Gear 2 17 is placed in the middle. When the left and right groups of pressure rollers 2 11 and gear 1 12 move simultaneously under the drive of hydraulic rod 2 9, gear 2 17 is just limited by the two moving gears 12 and maintains its stable state.
[0027] The axes of the hydraulic rod 1 4 and the two sets of hydraulic rods 2 9 located at the lower side are distributed at an angle of 120° to each other, and the diameter of the pressure roller 2 11 is greater than the diameter of the gear 1 12;
[0028] The hydraulic rod 1 4 and the two groups of hydraulic rods 2 9 on the lower side are distributed at equal angles, so as to make the pressing roller 1 6 and the pressing roller 2 11 distributed at equal angles to cope with the size change of the stainless steel capillary 8 after pressing and rolling forming.
[0029] The diameter of the gear 2 17 is greater than the diameter of the gear 1 12 , and the vertical tangent of the gear 2 17 is located at the outer edges of the gear 1 12 on the left and right sides respectively;
[0030] When the pressure roller 11 drives the gear 17 to rotate, the torque can be amplified and the gear 17 can be rotated, thereby reducing the friction loss between the stainless steel capillary 8 and the pressure roller 11.
[0031] Among them, the tops of the left and right sides of the inner wall of the base 1 are provided with inclined surfaces, and the hydraulic rod 2 9 is fixedly installed on the inclined surfaces;
[0032] The inclined surface on the top of the base 1 enables the hydraulic rod 2 9 and the hydraulic rod 1 4 to be installed at an angle of 120°, thereby realizing the equal-angle installation function of the pressure roller 2 11.
[0033] The working principle of this utility model:
[0034] First, the stainless steel capillary 8 is placed between the top of the outer surface of the two groups of pressure rollers 11 to form a support. The moving position of the pressure roller 11 is determined according to the size of the stainless steel capillary 8, and the hydraulic rod 9 is activated, and the two groups of connecting plates 10 and pressure rollers 11 are driven to extend outward synchronously to support the stainless steel capillary 8 upward. When the pressure roller 11 drives the gear 12 to move obliquely upward, the gear 12 rotates relatively during the abutment with the gear 17, and the left and right groups of gears 12 just rotate synchronously in the opposite direction to complete the adaptation; then, the hydraulic rod 4 is started and the connecting plate 5 and pressure roller 6 are driven to move downward, and the pressure roller 6 is made to abut against the outer surface of the stainless steel capillary 8 to form extrusion, and the motor 7 is started and the pressure roller 6 is driven to rotate, and the pressure roller 6 drives the stainless steel capillary 8 and the pressure roller 11 to rotate. The two groups of pressure rollers 11 have the same direction of rotation and are transmitted through the gear 12 and the gear 17 to reduce the friction resistance and wear caused by the relative rotation between the stainless steel capillary 8 and the pressure roller 11.
[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rolling machine for producing thin-walled capillaries, comprising a base (1), a support (2) and a top plate (3), characterized in that: A hydraulic rod (4) is installed at the bottom of the top plate (3), a connecting plate (5) is fixedly installed at the telescopic end of the hydraulic rod (4), a pressure roller (6) is rotatably installed inside the connecting plate (5), a motor (7) is installed on the front of the connecting plate (5), and the motor (7) is used to drive the pressure roller (6) to rotate, and hydraulic rods (9) are installed on both sides of the top of the base (1), and a connecting plate (10) is fixedly installed at the telescopic end of the hydraulic rod (9), and the connecting plate (10) is fixedly installed at the telescopic end of the hydraulic rod (9). ) is rotatably mounted inside the base (1), and gear (12) is fixedly mounted on both the front and rear ends of the pressure roller (11). A fixing column (13) is fixedly mounted on the top of the base (1), and a support plate (14) and a spring (15) are movably sleeved on the outer surface of the fixing column (13). A connecting seat (16) is fixedly mounted on both the front and rear sides of the support plate (14), and gear (17) is rotatably mounted inside the connecting seat (16), and the gear (17) is meshed with gear (12).
2. A rolling machine for producing thin-walled capillary tubes according to claim 1, characterized in that: The pillars (2) are arranged in two groups and are symmetrically mounted on the left and right sides of the top of the base (1); the top plate (3) is fixedly mounted on the top of the pillars (2); the pressing roller 1 (6) and the two groups of pressing rollers 2 (11) located at the lower side are distributed at equal angles; the stainless steel capillary (8) is pressed and placed between the pressing roller 1 (6) and the two groups of pressing rollers 2 (11).
3. A rolling machine for producing thin-walled capillary tubes according to claim 2, characterized in that: The fixing columns (13) are arranged in three groups and are distributed in depth on the top of the base (1). A protrusion is provided at the top of the fixing column (13). The two ends of the spring (15) are elastically connected to the support plate (14) and the protrusion respectively. The gear 2 (17) abuts and meshes with the left and right groups of gear 1 (12) upward.
4. A rolling machine for producing thin-walled capillary tubes according to claim 3, characterized in that: The axes of the hydraulic rod 1 (4) and the two groups of hydraulic rods 2 (9) located at the lower side are distributed at an angle of 120° to each other, and the diameter of the pressure roller 2 (11) is greater than the diameter of the gear 1 (12).
5. A rolling machine for producing thin-walled capillary tubes according to claim 4, characterized in that: The diameter of the gear 2 (17) is greater than the diameter of the gear 1 (12), and the vertical tangent of the gear 2 (17) is located at the outer edges of the gear 1 (12) on the left and right sides respectively.
6. A rolling machine for producing thin-walled capillary tubes according to claim 1, characterized in that: The tops of the left and right sides of the inner wall of the base (1) are both provided with inclined surfaces, and the second hydraulic rod (9) is fixedly mounted on the inclined surfaces.