A straightening device for processing stainless steel pipes for air conditioning water collection tanks

Abstract

This utility model provides a straightening device for processing stainless steel pipes in air conditioning water tanks, relating to the field of straightening devices for stainless steel pipe processing. It includes: a preheating device, on the upper side of which is equipped with an infrared temperature sensor and a control display, and an induction heating device inside; a pre-straightening device connected to the rear side of the preheating device; the pre-straightening device including a first driving assembly on the outer side and a first hydraulic cylinder on the upper side; and an upper pre-straightening roller and a lower pre-straightening roller on the inner side of the pre-straightening device. The upper side of the upper pre-straightening roller is connected to the lower end of the first hydraulic cylinder via a connecting plate, and the first driving assembly is connected to the lower pre-straightening roller. A precision straightening device is connected to the rear side of the pre-straightening device, and the precision straightening device includes a second driving assembly on the outer side. This utility model provides a preheating effect for stainless steel pipes, as well as pre-straightening and inspection effects, thereby improving the accuracy and quality requirements of pipe straightening.

Description

Technical Field

[0001] This utility model relates to the technical field of straightening devices for stainless steel pipe processing, and specifically to a straightening device for processing stainless steel pipes for air conditioning water tanks. Background Technology

[0002] Steel pipes are prone to bending and deformation during production, so straightening machines are needed to adjust their straightness. Currently, commonly used straightening machines typically use multiple opposing straightening rollers to compress the steel pipe, thereby changing its straightness. A search revealed existing technology (publication number: CN218744059U), which describes "a staggered roller straightening device for stainless steel pipes, specifically relating to the field of stainless steel pipe manufacturing technology. It includes an installation plate, with a processing component for straightening steel pipes fixedly connected to the top of the installation plate. The processing component has an adjustment component on its top that can change the diameter of the processed steel pipe. Support plates for connecting the adjustment component are fixedly connected to both ends of the top of the installation plate. Communicating windows for easy entry and exit of steel pipes are provided on the surfaces of both sides of the support plates. This invention includes an adjustment component. The bottom ends of the bearing platform are fixedly connected to the top of the support plates. A connecting seat for driving a lead screw is fixedly connected to the middle of the bearing platform. The connecting seat is threadedly connected to the lead screw. A turning wheel for easy rotation by the user is fixedly connected to the top of the lead screw. A driven roller is located on top of the driving roller, allowing adjustment of the distance between the driven roller and the driving roller. This facilitates the straightening of steel pipes of different diameters, meeting diverse user needs and saving costs." Although the existing stainless steel pipe straightening device with staggered rollers has achieved the straightening effect for steel pipes of different diameters, it still has some shortcomings in practical applications: First, the stainless steel pipe needs to be heated before straightening so that it reaches a suitable straightening temperature before reaching the straightening roller, thus facilitating straightening. Second, the lack of pre-straightening process may result in insufficient straightening of steel pipes with macroscopic curvature without heating, and may also damage the straightening roller. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, a straightening device for processing stainless steel pipes in air conditioning water tanks is provided to solve the problems mentioned in the background technology.

[0004] To achieve the above objectives, a straightening device for processing stainless steel pipes in air conditioning water tanks is provided, comprising: a preheating device, wherein an infrared temperature sensor and a control display are installed on the upper side of the preheating device, and an induction heating device is provided inside the preheating device; a pre-straightening device is connected to the rear side of the preheating device; the pre-straightening device includes a first driving component arranged on the outer side and a first hydraulic cylinder arranged on the upper side; an upper pre-straightening roller and a lower pre-straightening roller are arranged on the inner side of the pre-straightening device; the upper side of the upper pre-straightening roller is connected to the lower end of the first hydraulic cylinder through a connecting plate; the first driving component is connected to the lower pre-straightening roller; a precision straightening device is connected to the rear side of the pre-straightening device; the precision straightening device includes a second driving component arranged on the outer side; an upper staggered straightening roller and a lower staggered straightening roller are arranged on the inner side of the precision straightening device; the upper end of the upper staggered straightening roller is connected to the second hydraulic cylinder; and the lower staggered straightening roller is connected to the second driving component.

[0005] Furthermore, the preheating device is configured as a rectangular box structure with openings on both sides, and the induction heating device is fixedly mounted inside the preheating device via a bottom-connected bracket.

[0006] Furthermore, the temperature probe of the infrared temperature sensor is inserted into the preheating device, and all three sets of infrared temperature sensors are electrically connected to the control display.

[0007] Furthermore, the first drive assembly and the second drive assembly have the same structure, and both include a sprocket, a chain, and a drive motor, with the sprocket fixedly connected to the spindle of the straightening roller.

[0008] Furthermore, the pre-straightening device is provided with a first mounting bracket on its upper side, a first hydraulic cylinder is mounted on the upper side of the first mounting bracket, and a guide telescopic rod is connected to the lower end of the first mounting bracket. The lower end of the guide telescopic rod passes through the top of the pre-straightening device and is fixedly connected to the connecting plate.

[0009] Furthermore, the upper staggered straightening roller and the lower staggered straightening roller are each provided in three sets, and the upper staggered straightening roller of each set is connected to the corresponding second hydraulic cylinder on the upper side, and the lower end of the second hydraulic cylinder is connected to a second mounting bracket.

[0010] Furthermore, a detection device is connected to the rear side of the precision straightening device, and the detection device includes a housing and a tube laser straightness measuring instrument disposed inside the housing.

[0011] The beneficial effects of this utility model are as follows: 1. By using a three-stage preheating device, as well as an induction heating device and an infrared temperature sensor installed on the inside, the stainless steel pipe of the air conditioning water tank is heated before straightening, so that the stainless steel pipe moving to the inside of the pre-straightening device is at an appropriate straightening temperature, so that the stainless steel pipe reaches the optimal plastic space, thereby ensuring the uniformity and surface quality of straightening. 2. The pre-straightening device includes an upper pre-straightening roller and a lower pre-straightening roller, which, under the action of the first drive assembly and the first hydraulic cylinder, pre-straightens the stainless steel pipe with macroscopic curvature, eliminating the original curvature of the stainless steel pipe. Then, through the second hydraulic cylinder and the second drive assembly, as well as the upper and lower staggered straightening rollers, the precision straightening device further achieves precision straightening of the stainless steel pipe. Finally, the pipe laser straightness measuring instrument included in the detection device is used to detect the straightness of the straightened stainless steel pipe to meet the usage standards of air conditioning water collection tanks. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0013] Figure 2 This is a cross-sectional structural diagram of the preheating device according to an embodiment of the present invention.

[0014] Figure 3 This is a cross-sectional structural diagram of the straightening device according to an embodiment of the present utility model.

[0015] Figure 4 This is a schematic diagram of the upper and lower staggered straightening roller structure of an embodiment of the present utility model.

[0016] In the diagram: 1. Preheating device; 11. Infrared temperature sensor; 12. Control display; 13. Induction heating device; 14. Fixing frame; 2. Pre-straightening device; 21. First drive assembly; 22. First mounting frame; 23. First hydraulic cylinder; 24. Guide telescopic rod; 25. Connecting plate; 26. Upper pre-straightening roller; 27. Lower pre-straightening roller; 3. Precision straightening device; 31. Second drive assembly; 32. Second hydraulic cylinder; 33. Second mounting frame; 34. Upper staggered straightening roller; 35. Lower staggered straightening roller; 4. Detection device. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1 to 4As shown, this utility model provides a straightening device for processing stainless steel pipes in air conditioning water tanks, including: a preheating device 1, an infrared temperature sensor 11 and a control display 12 mounted on the upper side of the preheating device 1, and an induction heating device 13 inside the preheating device 1; a pre-straightening device 2 connected to the rear side of the preheating device 1, the pre-straightening device 2 including a first drive assembly 21 on the outer side and a first hydraulic cylinder 23 on the upper side, and an upper pre-straightening roller 26 and a lower pre-straightening roller 27 on the inner side of the pre-straightening device 2. The upper pre-straightening roller 26 is connected to the lower end of the first hydraulic cylinder 23 via a connecting plate 25. At the same time, the first drive assembly 21 is connected to the lower pre-straightening roller 27. The precision straightening device 3 is connected to the rear side of the pre-straightening device 2. The precision straightening device 3 includes a second drive assembly 31 arranged on the outer side. The precision straightening device 3 is provided with an upper staggered straightening roller 34 and a lower staggered straightening roller 35 on the inner side. The upper end of the upper staggered straightening roller 34 is connected to the second hydraulic cylinder 32. The lower staggered straightening roller 35 is connected to the second drive assembly 31.

[0019] In this embodiment, the preheating device 1, the pre-straightening device 2, the precision straightening device 3, and the detection device 4 constitute the main structure of the straightening device for processing stainless steel pipes for air conditioning water tanks involved in this application.

[0020] It should be noted that a stainless steel pipe guide conveying device is provided in front of the preheating device 1, so that it is inserted into the induction heating device 13 inside the preheating device 1.

[0021] like Figure 1 and Figure 2 In the preheating device 1, a rectangular box structure with openings on both sides is provided. The induction heating device 13 is located inside the preheating device 1 via a fixed bracket 14 connected to the bottom. The temperature probe of the infrared temperature sensor 11 is inserted into the preheating device 1. All three sets of infrared temperature sensors 11 are electrically connected to the control display 12.

[0022] Specifically, the induction heating device 13 is an electrical device that achieves non-contact heating based on the electromagnetic induction eddy current effect, mainly composed of a frequency converter and an induction coil. This device has technical characteristics such as high heating efficiency (65%-75%) and low energy consumption (more than 30% more energy saving than traditional furnace types).

[0023] like Figures 1 to 4In this device, the first drive assembly 21 and the second drive assembly 31 have the same structure, and both include a sprocket, a chain, and a drive motor. The sprocket is fixedly connected to the spindle of the straightening roller. The pre-straightening device 2 is provided with a first mounting frame 22 on its upper side. The first hydraulic cylinder 23 is mounted on the upper side of the first mounting frame 22, and the lower end of the first mounting frame 22 is connected to a guide telescopic rod 24. The lower end of the guide telescopic rod 24 passes through the top of the pre-straightening device 2 and is fixedly connected to the connecting plate 25. The upper staggered straightening roller 34 and the lower staggered straightening roller 35 are provided with three sets, and the upper staggered straightening roller 34 of each set is connected to the corresponding second hydraulic cylinder 32 on the upper side. The lower end of the second hydraulic cylinder 32 is connected to a second mounting frame 33. The rear side of the precision straightening device 3 is connected to a detection device 4, and the detection device 4 includes a housing and a tube laser straightness measuring instrument set inside the housing.

[0024] Specifically, the sprockets are connected by chains, and in a drive assembly, the middle sprocket is connected to the front and rear sprockets by chains, and the rear sprocket is connected to the sprocket at the output shaft of the drive motor by a chain, so as to realize the synchronous drive of the three sets of sprockets, thereby driving the straightening roller located on the lower side to rotate.

[0025] Specifically, the gap between the upper straightening roller and the lower straightening roller is adjusted by a hydraulic cylinder, wherein the straightening gap of the pre-straightening device 2 is slightly larger than the straightening gap of the precision straightening device 3.

[0026] Specifically, the upper staggered straightening roller 34 and the lower staggered straightening roller 35 are staggered at a certain angle in the vertical direction.

[0027] Specifically, the pipe laser straightness measuring instrument is model GV-15, and the pipe output direction inside the casing of the detection device 4 is set at equal intervals. Its structure and detection principle have been fully disclosed in the existing technology.

[0028] In use, a three-stage preheating device, along with an internal induction heating device and an infrared temperature sensor, heats the stainless steel pipe of the air conditioning water tank before straightening. This ensures that the stainless steel pipe, moving to the inside of the pre-straightening device, is at an appropriate straightening temperature, achieving optimal plasticity and guaranteeing straightening uniformity and surface quality. The upper and lower pre-straightening rollers in the pre-straightening device, under the action of the first drive assembly and the first hydraulic cylinder, pre-straighten the stainless steel pipe to eliminate its original curvature. Then, the second hydraulic cylinder and second drive assembly, along with the upper and lower staggered straightening rollers in the precision straightening device, further refine the straightening of the stainless steel pipe. Finally, a pipe laser straightness measuring instrument in the detection device is used to test the straightness of the straightened stainless steel pipe to meet the usage standards for air conditioning water tanks.

[0029] The straightening device for processing stainless steel pipes for air conditioning water tanks of this utility model can effectively solve the problems mentioned in the background technology. It achieves a preheating effect on stainless steel pipes, as well as pre-straightening and inspection effects, based on the existing technology of straightening devices for processing stainless steel pipes for air conditioning water tanks, thereby improving the accuracy and quality requirements of pipe straightening.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straightening device for processing stainless steel pipes in air conditioning water collection tanks, comprising: The preheating device (1) is characterized in that: an infrared temperature sensor (11) and a control display (12) are installed on the upper side of the preheating device (1), and an induction heating device (13) is provided inside the preheating device (1). A pre-straightening device (2) is connected to the rear side of the preheating device (1). The pre-straightening device (2) includes a first drive assembly (21) arranged on the outer side and a first hydraulic cylinder (23) arranged on the upper side. An upper pre-straightening roller (26) and a lower pre-straightening roller (27) are provided on the inner side of the pre-straightening device (2). The upper pre-straightening roller (26) is connected to the upper side of the preheating device (27) by a connecting rod. The connecting plate (25) is connected to the lower end of the first hydraulic cylinder (23), and the first drive assembly (21) is connected to the lower pre-straightening roller (27). The pre-straightening device (2) is connected to the rear side of the precision straightening device (3), and the precision straightening device (3) includes the second drive assembly (31) arranged on the outer side. The precision straightening device (3) is also provided with an upper staggered straightening roller (34) and a lower staggered straightening roller (35) on the inner side. The upper end of the upper staggered straightening roller (34) is connected to the second hydraulic cylinder (32), and the lower staggered straightening roller (35) is connected to the second drive assembly (31).

2. The straightening device for stainless steel pipe processing of a water collecting tank of an air conditioner according to claim 1, characterized in that, The preheating device (1) is a rectangular box structure with openings on both sides, and the induction heating device (13) is located inside the preheating device (1) via a fixed bracket (14) connected to the bottom.

3. The straightening device for stainless steel pipe processing of a water collecting tank of an air conditioner according to claim 1, characterized in that, The temperature probe of the infrared temperature sensor (11) is inserted into the preheating device (1), and all three sets of infrared temperature sensors (11) are electrically connected to the control display (12).

4. A straightening device for processing stainless steel pipes in an air conditioning water tank according to claim 1, characterized in that, The first drive assembly (21) and the second drive assembly (31) have the same structure and both include a sprocket, a chain and a drive motor, and the sprocket is fixedly connected to the spindle of the straightening roller.

5. The straightening device for stainless steel pipe processing of a water collecting tank of an air conditioner according to claim 1, characterized in that, The pre-straightening device (2) is provided with a first mounting bracket (22) on the upper side. A first hydraulic cylinder (23) is installed on the upper side of the first mounting bracket (22), and a guide telescopic rod (24) is connected to the lower end of the first mounting bracket (22). The lower end of the guide telescopic rod (24) passes through the top of the pre-straightening device (2) and is fixedly connected to the connecting plate (25).

6. The straightening device for stainless steel pipe processing of a water collecting tank of an air conditioner according to claim 1, characterized in that, The upper staggered straightening roller (34) and the lower staggered straightening roller (35) are respectively provided in three groups, and the upper staggered straightening roller (34) of each group is connected to the corresponding upper hydraulic cylinder (32), and the lower end of the second hydraulic cylinder (32) is connected to the second mounting bracket (33).

7. A straightening device for processing stainless steel pipes for air conditioning water collection tanks according to claim 1, characterized in that, The precision straightening device (3) is connected to a detection device (4) on its rear side, and the detection device (4) includes a housing and a tube laser straightness measuring instrument disposed inside the housing.

Images