Continuous deburring device for heat exchange tube

Abstract

The utility model relates to the technical field of deburring, and provides a heat exchange tube continuous deburring device which comprises a feeding component, a deburring machine and a discharging component which are arranged in sequence, the deburring machine comprises an annular conveyor and a deburring assembly, a plurality of material baffles are arranged on a moving component of the annular conveyor at intervals, and the material baffles are arranged on the annular conveyor. When the annular conveyor works, a heat exchange tube on the feeding component is carried to the deburring assembly to be deburred, the deburred heat exchange tube is carried to the discharging component, the deburring device further comprises an annular belt with the rotating direction opposite to the rotating direction of the annular conveyor, the annular belt is used for making contact with the top of the heat exchange tube, a tensioning wheel is arranged on the inner side of the annular belt, and the tensioning wheel is used for tensioning the annular belt. The tensioning wheel is connected with an adjusting structure used for adjusting the position of the tensioning wheel so as to adjust the tensioning degree of the annular belt. When the annular belt is loosened, the annular belt can be tensioned in time by adjusting the position of the tensioning wheel, and the situation that enough friction force cannot be provided to enable the heat exchange tube to rotate is avoided.

Description

Technical Field

[0001] This utility model relates to the field of deburring technology, and more specifically, to a continuous deburring device for heat exchange tubes. Background Technology

[0002] During the manufacturing process, burrs are usually generated at the tube ends after the tubes are cut to a fixed length. If these burrs are not removed, they will affect the assembly accuracy of the heat exchange tubes with other components (such as tube sheets, flanges, etc.), and may even scratch the sealing surface or cause poor sealing. Therefore, steel brushes are usually used to deburr the tube ends.

[0003] In existing technologies, to address the shortcomings of traditional manual deburring, automated equipment is typically employed. For example, in patent document CN206952697U, several pairs of baffles are arranged on a circular conveyor. When the conveyor operates, the baffles move in a circular motion. As the baffles pass the feeding component, they carry the pipe fittings and move them to the deburring machine for deburring. The deburred pipe fittings then move with the baffles to the unloading component, where they detach from the baffles and are stored. Furthermore, this technology includes a circular belt moving in the opposite direction to the pipe fitting's movement, contacting the top of the pipe fitting to cause it to rotate and provide uniform deburring. However, in this prior art, if the circular belt becomes slack (e.g., improper installation or slack after use), it will not provide sufficient friction to rotate the pipe fitting. Utility Model Content

[0004] The purpose of this invention is to provide a continuous deburring device for heat exchange tubes to solve the above-mentioned defects of the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A continuous deburring device for heat exchange tubes includes a feeding component, a deburring machine, and a discharging component arranged sequentially. The deburring machine includes a ring conveyor and a deburring assembly. The moving parts of the ring conveyor are provided with several baffles at intervals. When the ring conveyor is working, it carries the heat exchange tubes on the feeding component to the deburring assembly for deburring, and then carries the deburred heat exchange tubes to the discharging component. The deburring device also includes a ring belt that rotates in the opposite direction to the ring conveyor, for contacting the top of the heat exchange tubes. A tensioning wheel is provided on the inner side of the ring belt, and the tensioning wheel is connected to an adjustment structure for adjusting its position to adjust the tension of the ring belt.

[0007] Optionally, the annular belt is supported by a support plate, and the adjustment structure includes a connecting shaft, a waist-shaped groove and a pair of locking nuts. The tension wheel is rotatably connected to one end of the connecting shaft, and the other end of the connecting shaft is threaded. The waist-shaped groove is provided on the support plate, and the connecting shaft passes through the waist-shaped groove and is locked on both sides of the support plate by locking nuts.

[0008] Optionally, the support plate is connected to an adjustment component for adjusting its vertical height.

[0009] Optionally, the adjustment assembly includes a fixed base, an adjusting screw, and a guide rod. The adjusting screw is rotatably mounted on the fixed base and a driving component is connected to the top of the adjusting screw. The guide rod is fixedly mounted on the fixed base. The support plate is provided with a guide seat and a nut seat. The guide seat and the guide rod are slidably engaged, and the nut seat and the adjusting screw are threadedly engaged.

[0010] Optionally, the annular conveyor is a chain conveyor, and the baffle plate is fixed on the chain.

[0011] Optionally, the closed-loop structure formed by the chain includes a horizontal segment and a vertical segment. The horizontal segment extends in the direction of the line connecting the feeding component and the unloading component, and the vertical segment extends in the up-down direction. The feeding component is located on the side of the annular conveyor close to the vertical segment.

[0012] Optionally, the deburring assembly includes a brush roller, a steel brush, and a drive component, wherein the steel brush is disposed on the brush roller, and the drive component is used to drive the brush roller to rotate.

[0013] Optionally, when the steel brush contacts the inlet of the heat exchange tube, the force applied to the inlet is directed downwards.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: In this utility model, when the baffle plate on the annular conveyor rotates with it, the baffle plate can carry the heat exchange tube on the feeding component and move the heat exchange tube to the deburring component for deburring. After deburring, the heat exchange tube is moved to the unloading component for storage as the annular conveyor rotates. The whole process is carried out continuously and automatically. At the same time, the annular belt can contact the top of the heat exchange tube, and its rotation direction is opposite to the rotation direction of the annular conveyor. In this way, the heat exchange tube can rotate, making the deburring more uniform. Furthermore, the position of the tensioning wheel can be adjusted. Compared with the prior art, when the annular belt becomes slack, this utility model can adjust the position of the tensioning wheel to tighten the annular belt in time, avoiding insufficient friction to make the heat exchange tube rotate. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a continuous deburring device for heat exchange tubes provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the deburring machine.

[0017] Figure 3 This is a partial structural diagram of a deburring machine;

[0018] Figure 4 Schematic diagram of the installation structure of the annular belt Figure 1 ;

[0019] Figure 5 Schematic diagram of the installation structure of the annular belt Figure 2 ;

[0020] Reference numerals: 1-Feeding component, 2-Discharging component, 3-Deburring machine, 4-Deburring assembly, 401-Brush roller, 402-Drive component, 5-Circular conveyor, 501-Baffle plate, 6-Circular belt, 601-Tensioning wheel, 7-Support plate, 8-Adjusting assembly, 801-Fixed seat, 802-Adjusting screw, 803-Guide rod, 9-Connecting shaft, 10-Locking nut, 11-Heat exchange tube. Detailed Implementation

[0021] refer to Figure 1 A continuous deburring device for heat exchange tubes includes a feeding component 1, a deburring machine 3, and a discharging component 2 arranged sequentially.

[0022] refer to Figure 2 and Figure 3 The deburring machine 3 includes a ring conveyor 5 and a deburring assembly 4. It should be understood that the deburring assembly 4 is provided at both ends of the heat exchange tube 11. Alternatively, in this embodiment, the ring conveyor 5 is a chain conveyor, i.e., the chain is driven to rotate by a sprocket, with the chain acting as a moving component, and the baffle plate 501 fixed to the chain. Based on this, the closed-loop structure formed by the chain includes a horizontal segment and a vertical segment. The horizontal segment extends in the direction of the line connecting the feeding component 1 and the unloading component 2, and the vertical segment extends in the up-down direction. The feeding component 1 is located on the side of the ring conveyor 5 near the vertical segment. Alternatively, the closed-loop structure formed by the chain is triangular.

[0023] It is easy to understand that in the vertical section, the chain moves upwards, and each baffle plate 501, as it moves upwards with the chain and passes the loading component 1, hooks off one heat exchange tube 11 (the heat exchange tube 11 is then confined between adjacent baffle plates 501). In the horizontal section, the chain moves towards the unloading component 2, moving the heat exchange tube 11 to the deburring component 4 for deburring. After deburring, the heat exchange tube 11 continues to be moved by the baffle plates 501 and is stored on the unloading component 2. The entire process is continuous and automatic. Furthermore, it should be understood that the above-mentioned "the extension direction of the vertical section is the up-down direction" does not only refer to the direction of gravity, but can also refer to a direction with an angle to the direction of gravity, as long as it can achieve the goal of the baffle plate 501 hooking off the heat exchange tube 11 when passing the loading component 1 and carrying the heat exchange tube 11 upwards.

[0024] As an alternative, the deburring assembly 4 includes a brush roller 401, a steel brush (not shown), and a drive component 402. The steel brush is mounted on the brush roller 401 and is used to contact the tube opening to achieve deburring. The drive component 402 is used to drive the brush roller 401 to rotate. The drive component 402 typically includes a motor and a reducer; that is, the motor, after being reduced in speed, acts on the brush roller 401 to cause the brush roller 401 to rotate. Further, in this embodiment, when the steel brush contacts the tube opening of the heat exchange tube 11, the force applied to the tube opening is directed downwards. This arrangement prevents the heat exchange tube 11 from detaching from the baffle plate 501 due to its upward tendency during deburring. Based on this, it is easy to understand that the axial direction of the brush roller 401 is the direction of the line connecting the feeding component 1 and the unloading component 2, and the instantaneous movement direction of the steel brush at the tube opening is downwards.

[0025] Refer again Figure 1 As an alternative, in this embodiment, both the feeding component 1 and the unloading component 2 are guide frames. The top surface of the guide frame has an inclined guiding surface. It should be understood that in the feeding component 1, the end of the guiding surface away from the deburring machine 3 is higher, and the end closer to the deburring machine 3 is lower. Similarly, in the unloading component 2, the end of the guiding surface closer to the deburring machine 3 is higher, and the end away from the deburring machine 3 is lower. In this way, the feeding component 1 brings the heat exchange tube 11 closer to the deburring machine 3 under the action of gravity, and the unloading component 2 moves the heat exchange tube 11 away from the deburring machine 3 under the action of gravity, eliminating the need for power conveying. In other embodiments, the feeding component 1 and the unloading component 2 can, of course, adopt other methods, such as using a conveyor.

[0026] In this embodiment, both the feeding component 1 and the unloading component 2 are composed of at least two parallel guide frames. In practical applications, the number of guide frames can be set according to the length of the heat exchange tube 11. The longer the heat exchange tube 11, the more parallel guide frames are required. Furthermore, in this embodiment, both sides of the feeding component 1 and both sides of the unloading component 2 are provided with limiting components (not shown in the figure) to limit the position of both ends of the heat exchange tube 11. Specifically, the limiting components can be structures such as baffles to limit the axial displacement of the heat exchange tube 11 and prevent it from rolling off when rolling on the feeding component 1 and the unloading component 2.

[0027] In this embodiment, both the feeding component 1 and the unloading component 2 are provided with baffle blocks at their ends. That is, baffle blocks are provided at the end of the feeding component 1 that is close to the deburring machine 3 and the end of the unloading component 2 that is far away from the deburring machine 3. The function of the baffle blocks is to restrict the heat exchange tube 11 from rolling further, so that the heat exchange tube 11 can stay at this position.

[0028] refer to Figure 2 , Figure 4 and Figure 5 The deburring device also includes an annular belt 6 whose rotation direction is opposite to that of the annular conveyor 5. It is easy to understand that the annular belt 6 is driven to rotate by pulleys. Based on this, if the annular conveyor 5 rotates clockwise, the annular belt 6 rotates counterclockwise. That is, the movement direction of the heat exchange tube 11 in the aforementioned transverse section is opposite to the movement direction of the lower side of the annular belt 6, causing the heat exchange tube 11 to rotate upon contact with the annular belt 6, resulting in more uniform deburring. In this embodiment, the distance between adjacent baffles 501 is slightly larger than that between the heat exchange tubes 11 to prevent the annular belt 6 from causing the heat exchange tubes 11 to translate between adjacent baffles 501. Furthermore, it is worth noting that in this embodiment, the annular belt 6 is positioned far from the steel brush to avoid mutual interference between the two.

[0029] In this embodiment, a tensioning wheel 601 is provided on the inner side of the annular belt 6. The tensioning wheel 601 is connected to an adjustment structure for adjusting its position, so as to adjust the tension of the annular belt 6. Compared with the prior art, when the annular belt 6 becomes loose, the present invention can adjust the position of the tensioning wheel 601 to tighten the annular belt 6 in time, so as to avoid insufficient friction to make the heat exchange tube 11 rotate.

[0030] The annular belt 6 is supported by a support plate 7. The pulley driving the annular belt 6 is mounted on the support plate 7, and a motor and reducer drive the pulley to rotate, thereby driving the annular belt 6 to rotate. Alternatively, the adjustment structure includes a connecting shaft 9, a waist-shaped groove, and a pair of locking nuts 10. The tension wheel 601 is rotatably connected to one end of the connecting shaft 9, and the other end of the connecting shaft 9 is threaded. The waist-shaped groove is located on the support plate 7, and the connecting shaft 9 passes through the waist-shaped groove and is locked on both sides of the support plate 7 by the locking nuts 10. In this embodiment, the waist-shaped groove extends vertically, allowing the tension wheel 601 to be adjusted vertically. In other embodiments, the waist-shaped groove can also be arranged at an angle, as long as it allows adjustment of the tension of the annular belt 6 when adjusting the position of the tension wheel 601. Furthermore, it should be understood that in other embodiments, the adjustment structure can take other forms, such as having several mounting holes along one direction, and adjusting the position of the tension wheel 601 by connecting the connecting shaft 9 to different mounting holes.

[0031] In this embodiment, the support plate 7 is connected to an adjustment assembly 8 for adjusting its vertical height, thereby realizing the height adjustment of the annular belt 6. This facilitates adjustment of the contact degree between the annular belt 6 and the heat exchange tube 11, and also allows for adaptation to heat exchange tubes 11 of different diameters. Alternatively, the adjustment assembly 8 includes a fixed base 801, an adjusting screw 802, and a guide rod 803. The fixed base 801 is fixedly connected to the frame of the deburring assembly 4. The adjusting screw 802 is rotatably mounted on the fixed base 801, and a driving component (not shown) is connected to the top of the adjusting screw 802. The guide rod 803 is fixedly mounted on the fixed base 801. The support plate 7 has a guide seat and a nut seat. The guide seat and the guide rod 803 are slidably engaged, and the nut seat and the adjusting screw 802 are threadedly engaged. The driving component can be manually driven or automatically driven. In manual drive, the driving component is a knob; in automatic drive, the driving component is a motor. In practical applications, the height of the support plate 7 can be adjusted by driving the adjusting screw 802 to rotate forward or backward, thereby adjusting the height of the annular belt 6. It should be understood that in other embodiments, the height of the support plate 7 can of course be adjusted in other ways.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A continuous deburring device for heat exchange tubes, comprising a feeding component, a deburring machine and a discharging component arranged in sequence, the deburring machine comprising a ring conveyor and a deburring assembly, a plurality of material blocking plates being arranged on the moving part of the ring conveyor at intervals, the ring conveyor carrying the heat exchange tubes on the feeding component to the deburring assembly for deburring when in operation, and carrying the deburred heat exchange tubes to the discharging component, the deburring device further comprising a ring belt rotating in the opposite direction to the ring conveyor for contacting the top of the heat exchange tubes, characterized in that, The inner side of the annular belt is provided with a tensioning wheel, and an adjusting structure is connected to the tensioning wheel for adjusting the position of the tensioning wheel to adjust the tensioning degree of the annular belt.

2. The heat exchange tube continuous deburring device according to claim 1, characterized in that, The annular belt is supported by a support plate, and the adjusting structure comprises a connecting shaft, a waist-shaped groove and a pair of locking nuts, one end of the connecting shaft is rotationally connected to the tensioning wheel, the other end of the connecting shaft is provided with a thread, the waist-shaped groove is arranged on the support plate, the connecting shaft is arranged in the waist-shaped groove and is locked by the locking nuts on both sides of the support plate.

3. The heat exchange tube continuous deburring device according to claim 2, characterized in that, The support plate is connected with an adjusting assembly for adjusting the height of the support plate.

4. The heat exchange tube continuous deburring device according to claim 3, characterized in that, The adjusting assembly comprises a fixing seat, an adjusting screw rod and a guide rod, the adjusting screw rod is rotationally arranged on the fixing seat and the top end of the adjusting screw rod is connected with a driving member, the guide rod is fixedly arranged on the fixing seat, the support plate is provided with a guide seat and a nut seat, the guide seat is slidingly matched with the guide rod, and the nut seat is threadedly matched with the adjusting screw rod.

5. The continuous deburring device for heat exchange tubes according to any one of claims 1-4, characterized in that, The annular conveyor is a chain conveyor, and the material blocking plate is fixed on the chain.

6. The heat exchange tube continuous deburring device according to claim 5, characterized in that, The closed loop structure formed by the chain comprises a horizontal section and a vertical section, the extension direction of the horizontal section is the direction of the line between the feeding component and the discharging component, and the extension direction of the vertical section is the up-down direction; the feeding component is arranged on one side of the annular conveyor close to the vertical section.

7. The continuous deburring apparatus for heat exchange tubes according to any one of claims 1 to 4, characterized in that, The deburring assembly comprises a brush roller, a steel brush and a driving member, the steel brush is arranged on the brush roller, and the driving member is used for driving the brush roller to rotate.

8. The heat exchange tube continuous deburring device according to claim 7, characterized in that, When the steel brush is in contact with the pipe opening of the heat exchange pipe, the direction of the force applied to the pipe opening is downward.

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