Stainless steel capillary tube double-end straightener capable of avoiding slipping of pressing wheel
By introducing height adjustment and synchronization components into the stainless steel capillary double-head straightening machine, the problem of pressure roller slippage was solved, enabling adaptive straightening of tubes with different diameters and improving the straightening effect and consistency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU CONDELAI TECHNOLOGY CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-12
AI Technical Summary
The existing stainless steel capillary double-head straightening machine has difficulty adapting to tubes of different diameters when the pressure roller rotates synchronously, which causes the pressure roller to slip and affects the straightening effect.
The system combines a height adjustment component and a synchronization component. The height of the upper pressure roller is adjusted by a screw and a lifting block. The rollers rotate at the same speed by means of a motor, pulleys and belt transmission, thus avoiding speed difference.
It enables adaptive straightening of stainless steel capillaries of different diameters, avoids slippage of the pressure rollers, and improves the straightening effect and consistency.
Smart Images

Figure CN224346673U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stainless steel capillary straightening technology, specifically a double-headed stainless steel capillary straightening machine that avoids slippage of the pressure roller. Background Technology
[0002] Before actual use, stainless steel capillary tubes need to be straightened by a stainless steel capillary tube double-head straightening machine to facilitate later use. The stainless steel capillary tubes are conveyed and straightened by the rotation of the upper and lower sets of rollers.
[0003] Chinese utility model patent CN202088457U discloses an automatic double-headed needle tube straightening machine, including a discharge roller, a discharge pressure roller, an intermediate roller, an intermediate pressure roller, a feed roller, a discharge roller, and a speed-regulating motor. The machine is characterized by gears on the discharge roller and discharge pressure roller, gears on the intermediate roller and intermediate pressure roller, and gears on the feed roller and discharge roller. The speed-regulating motor, a driving gear mounted on the output shaft of the speed-regulating motor, a driven gear on the discharge roller, and a transmission chain form a transmission connection. The discharge pressure roller and intermediate pressure roller are equipped with gears and a chain connecting these two gears, causing the discharge pressure roller and intermediate pressure roller to move at the same speed. The intermediate roller and feed roller are also equipped with gears and a chain connecting these two gears, causing the intermediate roller and feed roller to move at the same speed.
[0004] Chinese utility model patent CN218744061U discloses a straightening device for refrigerated copper capillary tubes, including a housing. A through-feed hole is provided in the center of the bottom side of the housing. A straightening adjustment assembly is fixedly connected to one side of the bottom wall of the housing. The straightening adjustment assembly includes a first lower straightening wheel, a reduction motor, and a lifting plate. The output end of the reduction motor is connected to the first lower straightening wheel. A first upper straightening wheel is fixedly connected to the bottom of the lifting plate. The first upper straightening wheel and the first lower straightening wheel are symmetrically arranged vertically. This utility model is applicable to the straightening of refrigerated copper capillary tubes of different diameters, is convenient to use, and improves work efficiency.
[0005] Based on existing solutions and actual production and processing, the existing stainless steel capillary double-head straightening machine uses a transmission component to make each pressure roller rotate synchronously to avoid slippage of the pressure rollers. However, it is not convenient to adapt to tubes of different diameters when the pressure rollers are rotating synchronously, so as to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this invention is to provide a double-headed straightening machine for stainless steel capillary tubes that avoids slippage of the pressure rollers, in order to solve the problem mentioned in the background art of the existing double-headed straightening machine for stainless steel capillary tubes, which uses a transmission component to make each pressure roller rotate synchronously to avoid slippage of the pressure rollers, but is not convenient to adapt to tubes of different diameters when the pressure rollers are rotating synchronously.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-headed stainless steel capillary straightening machine to prevent slippage of the pressure rollers, comprising a mounting frame, a mounting plate, rollers, and an upper pressure roller:
[0008] A mounting plate is mounted on the mounting frame, and a synchronization assembly of rollers is mounted behind the mounting plate;
[0009] An upper pressure roller is provided above the roller, and the upper pressure roller is mounted on the mounting plate via a height adjustment assembly. A protective plate is mounted on the top of the mounting plate via a hinge, and a through plate is mounted on the right end of the mounting plate. A receiving frame is provided on the right side of the mounting frame.
[0010] Preferably, the synchronization component includes a motor, a pulley, a first transmission belt, a second transmission belt, and a rotating rod. The motor is fixed to the rear end of the mounting plate, and a pulley is fixed to the output end of the motor. The first transmission belt is sleeved on the outer side of the pulley fixed to the output end of the motor, and a second transmission belt is provided on the rear side of the first transmission belt. A rotating rod is fixed to the front side of the pulley, and a roller is fixed to the outer end of the rotating rod.
[0011] The above technical solution can not only adapt to stainless steel capillary tubes of different diameters, but also avoid the speed difference between the rollers causing the upper pressure roller to slip and affect the straightening effect.
[0012] Preferably, pulleys are connected to the left and right ends of the second conveyor belt.
[0013] Preferably, the height adjustment assembly includes a screw, a lifting block, and scale lines. The screw is rotatably mounted inside the mounting plate, the lifting block is threaded to the outer end of the screw, and an upper pressure roller is rotatably mounted at the front end of the lifting block. Scale lines are provided on the front side of the mounting plate.
[0014] Preferably, the lifting block forms a lifting structure with the mounting plate via a screw, and the mounting plate has a sliding groove inside for the lifting block to move up and down.
[0015] Preferably, a straightening groove for a stainless steel capillary is formed between the roller and the upper pressure roller.
[0016] Preferably, the through plate has a hole inside for the stainless steel capillary tube to pass through, and the upper surface of the bottom end of the hole inside the through plate is flush with the upper surface of the roller.
[0017] Compared with the prior art, the beneficial effects of this utility model are: the stainless steel capillary double-head straightening machine that avoids slippage of the pressure roller can not only adapt to stainless steel capillary tubes of different diameters, but also avoid the speed difference between the rollers causing the upper pressure roller to slip and affect the straightening effect.
[0018] 1. The upper pressure roller is mounted on the mounting plate via a height adjustment component. The height adjustment component allows for easy adjustment of the distance between the upper pressure roller and the roller, thus accommodating stainless steel capillary tubes of different diameters.
[0019] Manually rotate the screw, and the lifting block connected to the screw threadedly moves up and down, thereby raising and lowering the upper pressure roller. The lifting height of the upper pressure roller can be easily understood through the scale lines.
[0020] 2. A synchronization assembly of rollers is installed at the rear of the mounting plate. The synchronization assembly, consisting of a motor, pulleys, a first conveyor belt, a second conveyor belt, and a rotating rod, enables all rollers to rotate at the same speed, thereby avoiding speed differences between the rollers that could cause the upper pressure roller to slip and affect the straightening effect. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the first axial side structure of the present invention;
[0022] Figure 2 This is a schematic diagram of the connection structure between the pulley and the second conveyor belt of this utility model;
[0023] Figure 3 This is a schematic diagram of the axial section structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the second axial side structure of the present invention;
[0025] Figure 5 This is a bottom view of the synchronization component of this utility model.
[0026] In the diagram: 1. Mounting frame; 2. Mounting plate; 3. Motor; 4. Pulley; 5. First conveyor belt; 6. Second conveyor belt; 7. Rotating rod; 8. Roller; 9. Screw; 10. Lifting block; 11. Upper pressure roller; 12. Scale line; 13. Protective plate; 14. Through plate; 15. Receiving frame. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-5 The existing stainless steel capillary double-head straightening machine uses a transmission component to make each pressure roller rotate synchronously to avoid slippage of the pressure roller, but it is not convenient to adapt to tubes of different diameters when the pressure rollers are rotating synchronously. In order to solve this technical problem, this embodiment discloses the following technical content.
[0029] A double-headed straightening machine for stainless steel capillary tubes to prevent slippage of pressure rollers includes a mounting frame 1, a mounting plate 2, a motor 3, a pulley 4, a first conveyor belt 5, a second conveyor belt 6, a rotating rod 7, a roller 8, a screw 9, a lifting block 10, an upper pressure roller 11, a scale line 12, a protective plate 13, a through plate 14, and a receiving frame 15.
[0030] Mounting plate 2 is mounted on mounting frame 1. Synchronization assembly of roller 8 is mounted behind mounting plate 2. Upper pressure roller 11 is provided above roller 8. Upper pressure roller 11 is mounted on mounting plate 2 through height adjustment assembly. Height adjustment assembly includes screw 9, lifting block 10 and scale line 12. Screw 9 is rotatably mounted inside mounting plate 2. Lifting block 10 is threadedly connected to the outer end of screw 9. Upper pressure roller 11 is rotatably mounted at the front end of lifting block 10. Scale line 12 is provided on the front side of mounting plate 2. Lifting block 10 and mounting plate 2 form a lifting structure through screw 9. Slide groove for lifting block 10 to rise and fall is opened inside mounting plate 2.
[0031] Before straightening the stainless steel capillary, adjust the size of the straightening groove between the roller 8 and the upper pressure roller 11 according to the diameter of the stainless steel capillary. Manually rotate the screw 9, and the lifting block 10 connected to the screw 9 will rise and fall, thereby raising and lowering the upper pressure roller 11. Adjust the distance between the upper pressure roller 11 and the roller 8 to accommodate stainless steel capillary with different diameters. The lifting height of the upper pressure roller 11 can be known through the scale line 12.
[0032] The synchronization assembly includes a motor 3, a pulley 4, a first transmission belt 5, a second transmission belt 6, and a rotating rod 7. The motor 3 is fixed to the rear end of the mounting plate 2, and the output end of the motor 3 is fixed to the pulley 4. The first transmission belt 5 is sleeved on the outside of the pulley 4 fixed to the output end of the motor 3, and the second transmission belt 6 is provided on the rear side of the first transmission belt 5. The rotating rod 7 is fixed to the front side of the pulley 4, and the outer end of the rotating rod 7 is fixed to the roller 8. The left and right ends of the second transmission belt 6 are connected to the pulley 4.
[0033] When straightening the stainless steel capillary, the motor 3 is started, and the motor 3 drives the pulley 4 to rotate. The first conveyor belt 5 and the second conveyor belt 6 drive the rollers 8 for conveying, the intermediate rollers and the output rollers 8 to rotate synchronously, conveying the stainless steel capillary to the right. As the stainless steel capillary moves to the right, the upper pressure roller 11 rotates. Due to the synchronization component, the rollers 8 for conveying, the intermediate rollers and the output rollers 8 rotate synchronously, avoiding the slippage of the upper pressure roller 11 caused by inconsistent wheel speeds. This also prevents the stainless steel capillary from staying in the straightening groove for inconsistent times during speed adjustment, resulting in uneven expansion force, inconsistent straightness after straightening and inconsistent outer diameter of the tube.
[0034] A protective plate 13 is installed on the top of the mounting plate 2 via a hinge. A through plate 14 is installed on the right end of the mounting plate 2. A receiving frame 15 is set on the right side of the mounting frame 1. By flipping the protective plate 13, the roller 8 and the upper pressure roller 11 are fully exposed for maintenance. The straightened stainless steel capillary tube moves through the hole opened inside the through plate 14 to the receiving frame 15. A cutting device can be set on the right side of the stainless steel capillary tube double-head straightening machine to cut the stainless steel capillary tube.
[0035] The above completes a series of operations for the stainless steel capillary double-head straightening machine that prevents slippage of the pressure roller. Any content not described in detail in this manual is existing technology known to those skilled in the art.
[0036] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A double-headed straightening machine for stainless steel capillary tubes to prevent slippage of the pressure rollers, comprising a mounting frame (1), a mounting plate (2), rollers (8) and an upper pressure roller (11), characterized in that: A mounting plate (2) is mounted on the mounting bracket (1), and a synchronization assembly of rollers (8) is mounted behind the mounting plate (2); An upper pressure roller (11) is provided above the roller (8). The upper pressure roller (11) is mounted on the mounting plate (2) by a height adjustment assembly. A protective plate (13) is mounted on the top of the mounting plate (2) by a hinge. A through plate (14) is installed on the right end of the mounting plate (2). A receiving frame (15) is provided on the right side of the mounting frame (1).
2. The stainless steel capillary double-head straightening machine for avoiding slippage of the pressure roller as described in claim 1, characterized in that: The synchronization component includes a motor (3), a pulley (4), a first transmission belt (5), a second transmission belt (6), and a rotating rod (7). The motor (3) is fixed at the rear end of the mounting plate (2), and the pulley (4) is fixed at the output end of the motor (3). The first transmission belt (5) is sleeved on the outer side of the pulley (4) fixed at the output end of the motor (3), and the second transmission belt (6) is provided on the rear side of the first transmission belt (5). The rotating rod (7) is fixed on the front side of the pulley (4), and a roller (8) is fixed at the outer end of the rotating rod (7).
3. A stainless steel capillary double-head straightening machine for avoiding slippage of the pressure roller as described in claim 2, characterized in that: The left and right ends of the second conveyor belt (6) are connected to pulleys (4).
4. A stainless steel capillary double-head straightening machine for avoiding slippage of the pressure roller as described in claim 1, characterized in that: The height adjustment assembly includes a screw (9), a lifting block (10), and a scale line (12). The screw (9) is rotatably mounted inside the mounting plate (2). The lifting block (10) is threadedly connected to the outer end of the screw (9). An upper pressure roller (11) is rotatably mounted on the front end of the lifting block (10). A scale line (12) is provided on the front side of the mounting plate (2).
5. A stainless steel capillary double-head straightening machine for avoiding slippage of the pressure roller as described in claim 4, characterized in that: The lifting block (10) forms a lifting structure with the mounting plate (2) via the screw (9), and the mounting plate (2) has a sliding groove for the lifting block (10) to lift.
6. A stainless steel capillary double-head straightening machine for avoiding slippage of the pressure roller as described in claim 1, characterized in that: A straightening groove for a stainless steel capillary is formed between the roller (8) and the upper pressure roller (11).
7. A stainless steel capillary double-head straightening machine for avoiding slippage of the pressure roller as described in claim 1, characterized in that: The through plate (14) has a hole for the stainless steel capillary tube to pass through, and the upper surface of the bottom end of the hole in the through plate (14) is flush with the upper surface of the roller (8).