A pipe breakage detection device

Abstract

This utility model belongs to the field of copper tube processing technology, specifically disclosing a tube breakage detection device, including a detection bracket, a positioning component, and a tube breakage detection sensor. Both the positioning component and the tube breakage detection sensor are installed inside the detection bracket. The copper tube passes through the positioning component, and the positioning component constrains the copper tube to be positioned above the tube breakage detection sensor. During the copper tube detection process, this utility model, by constraining the position of the copper tube through the positioning component, facilitates accurate detection by the tube breakage detection sensor, effectively preventing the sensor from erroneously issuing a tube breakage signal due to misjudgment, thus avoiding equipment shutdown and improving production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of copper tube processing technology, and specifically relates to a tube breakage detection device. Background Technology

[0002] The V-groove forming machine is a crucial step in the production of internally threaded copper tubes. During the production of internally threaded copper tubes, if the copper tube has defects or the copper tube is wound haphazardly in the feeding frame, it is very easy for the copper tube to break. Once the copper tube breaks, the V-groove forming machine will be in an empty running state.

[0003] In existing technologies, to reduce the frequency of such phenomena, a sensor-based detection device for tube breakage is used. Specifically, the sensor is installed at the front end of the V-groove forming machine, and the copper tube must pass through the center and above the sensor. However, during actual operation, due to the force applied to the copper tube by the forming machine and the vibration of the equipment itself, the copper tube sways from side to side as it passes through the sensor. This swaying significantly reduces the stability of the sensor, often resulting in the sensor falsely issuing a tube breakage signal even when there is no actual breakage, causing the forming machine to stop operating and severely impacting production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a tube breakage detection device that effectively avoids misjudgment by the tube breakage detection sensor due to copper tube shaking, which would cause the equipment to stop operating incorrectly and thus help improve production efficiency.

[0005] The purpose of this utility model is achieved through the following technical solution: a broken pipe detection device is provided, characterized in that it includes a detection bracket, a positioning component, and a broken pipe detection sensor. The positioning component and the broken pipe detection sensor are both installed inside the detection bracket. The copper pipe passes through the positioning component, and the positioning component constrains the copper pipe to be located above the broken pipe detection sensor.

[0006] Preferably, the positioning component is provided with a support shaft, and the two ends of the support shaft are connected to the detection bracket.

[0007] Preferably, the detection bracket has symmetrical L-shaped grooves, and the two ends of the support shaft are slidably embedded in the L-shaped grooves.

[0008] Preferably, the positioning component includes a pulley, a support shaft passes through the pulley, the pulley has a groove, and a copper tube passes through the groove and is located above the tube breakage detection sensor.

[0009] Preferably, the positioning assembly further includes a pressure roller and a pressure roller shaft, with the pressure roller sleeved on the outside of the pressure roller shaft and located above the pulley, and both ends of the pressure roller shaft connected to the detection bracket.

[0010] Preferably, the detection bracket is further provided with a through groove, and the positioning component also includes a magnet; the magnet is disposed on one side of the through groove, one end of the pressure roller shaft is fixed in the through groove by magnetic attraction, and the other end of the pressure roller shaft is hinged to the detection bracket.

[0011] Preferably, the pressure roller and pulley are made of nylon.

[0012] Preferably, the positioning component is a positioning cover, which has a cavity through which a copper tube passes, and two support shafts are respectively connected to the outside of the positioning cover.

[0013] Preferably, the rear end face of the detection bracket is provided with a first groove.

[0014] Preferably, a second groove is provided on the upper end face of the detection bracket, and the broken pipe detection sensor is installed on the upper end face of the detection bracket along the second groove.

[0015] Due to the adoption of the above technical solution, this utility model has the following advantages:

[0016] Using the tube breakage detection device of this utility model, the copper tube constrained by the positioning component remains stable in the same position even when subjected to external force. The tube breakage detection sensor is set below the copper tube, and the positions of the copper tube and the tube breakage detection sensor are fixed, so that the detection signal of the tube breakage detection sensor is stable, avoiding the issuance of a signal that would stop the equipment when there is no tube breakage, thus improving production efficiency. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of a pipe breakage detection device according to the present invention;

[0019] Figure 2 This is a schematic diagram of the pipe breakage detection device installed on the molding machine.

[0020] Figure 3 This is a schematic diagram of a tube breakage detection sensor.

[0021] Figure 4 This is a schematic diagram of a pulley;

[0022] Figure 5 This is a schematic diagram of the pressure roller;

[0023] Figure 6 A schematic diagram for implementing a dual-positioning cover;

[0024] Figure 7 This is a schematic diagram of the inner cavity of the positioning cover.

[0025] Figure label:

[0026] 1-Detection bracket, 11-Mounting part, 111-First mounting plate, 112-Second mounting plate, 12-Support part, 121-First support plate, 122-Second support plate, 123-L-shaped groove, 124-Through groove, 13-First groove, 14-Second groove;

[0027] 2-Positioning component, 21-Support shaft, 22-Pulley, 221-Wheel groove, 222-Pulley bearing retaining ring, 223-Pulley bearing, 23-Pressure roller shaft, 24-Magnet, 241-Magnet bracket, 25-Pressure roller, 251-Pressure roller bearing, 252-Pressure roller bearing retaining ring, 253-Shaft pin, 254-Pressure roller shaft fixing shaft, 255-Pressure roller shaft fixing shaft bracket, 256-Fasting retaining ring, 26-Positioning cover, 261-Cavity, 262-Outlet, 263-Inlet;

[0028] 3-Pipe breakage detection sensor, 31-Sensor bracket, 32-Nut;

[0029] 4-Copper tube; 5-Forming machine platform; 51-Positioning hole; 52-V-groove forming machine. Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0031] Please see Figure 1 and Figure 2 A tube breakage detection device includes: a detection bracket 1, a positioning component 2, and a tube breakage detection sensor 3. Both the positioning component 2 and the tube breakage detection sensor 3 are installed within the detection bracket 1. A copper tube 4 passes through the positioning component 2, and the positioning component 2 constrains the copper tube 4 to be positioned above the tube breakage detection sensor 3. Specifically, the detection bracket 1 includes a mounting portion 11 and a support portion 12. The mounting portion 11 includes a first mounting plate 111 and a second mounting plate 112 connected vertically. The first mounting plate 111 is mounted on a forming machine base 5. The support portion 12 includes a first support plate 121 and a second support plate 122 symmetrically mounted on the surface of the second mounting plate 112. The positioning component 2 is disposed between the first support plate 121 and the second support plate 122, and the tube breakage detection sensor 3 is disposed on the surface of the second mounting plate 112. Preferably, the tube breakage detection sensor 3 is a photoelectric switch sensor of the prior art, and the tube breakage detection sensor 3 does not need to contact the copper tube 4, avoiding friction between the copper tube 4 and the tube breakage detection sensor 3. The pipe breakage detection sensor 3 is set between the forming machine platform 5 and the positioning component 2. The forming machine platform 5 is equipped with a V-groove forming machine 52 for receiving steel pipes 4.

[0032] In the use of the pipe breakage detection device of this utility model, the copper pipe 4 is first passed through the positioning component 2. The positioning component 2 has a positioning constraint effect on the copper pipe 4, so that even if it is subjected to external force, the copper pipe 4 remains stable in the same position. The pipe breakage detection sensor 3 is set below the copper pipe 4. The positions of the copper pipe 4 and the pipe breakage detection sensor 3 are fixed, so that the detection signal of the pipe breakage detection sensor 3 is stable, avoiding the signal that would stop the equipment from running when there is no pipe breakage, thus improving production efficiency. The copper pipe 4 that has completed the detection is stored in the V-groove forming machine 52.

[0033] Further, please refer to Figure 1 and Figure 3 The positioning component 2 is provided with a support shaft 21, the two ends of which are connected to the detection bracket 1. Specifically, one end of the support shaft 21 is installed on the inner side of the first support plate 121 by screws or welding, and the other end is installed on the inner side of the second support plate 122 in the same way; or the support shaft 21 is connected to the test bracket 1 by a quick-release installation method. Preferably, the detection bracket 1 is provided with symmetrical L-shaped grooves 123, and the two ends of the support shaft 21 are slidably embedded in the L-shaped grooves 123. The opposing surfaces of the first support plate 121 and the second support plate 122 are respectively provided with L-shaped grooves 123, the width of which is equal to the outer diameter of the support shaft 21. The support shaft 21 can be installed between the first support plate 121 and the second support plate 122 along the L-shaped grooves 123, or removed from between the first support plate 121 and the second support plate 122. The support shaft 21 can be integrally formed, with the positioning component 2 sleeved in the support shaft 21, or the two support shafts 21 can be respectively connected to the outer side of the positioning component 2. The positioning component 2 can be fixed on the detection bracket 1 without additional fixing devices. When the positioning component 2 needs to be replaced or maintained, it is easy to disassemble or install, thus improving production efficiency.

[0034] Example 1

[0035] Please see Figure 1 and Figure 4 The positioning component 2 includes a pulley 22, through which a support shaft 21 passes. The pulley 22 has a groove 221, through which the copper tube 4 passes and is positioned above the tube breakage detection sensor 3. Specifically, the center of the pulley 22 is fitted inside the support shaft 21. The positioning component 2 also includes a pulley bearing retainer 222 and a pulley bearing 223. The pulley bearing 223 is fitted outside the support shaft 21, and the pulley 22 is fitted outside the pulley bearing 223. The two pulley bearing retainers 222 are respectively fixed on both sides of the pulley bearing 223, thereby fixing the pulley 22 to the support shaft 21. The shape of the groove 221 includes, but is not limited to, U-shape, C-shape, V-shape, trapezoidal, etc. The V-shape or trapezoidal shape can be used for copper tubes 4 with different outer diameters, expanding the application scenarios.

[0036] Further, please refer to Figure 1 , Figure 3 and Figure 5 The positioning component 2 also includes a pressure roller 25 and a pressure roller shaft 23. The pressure roller 25 is sleeved on the outside of the pressure roller shaft 23 and located above the pulley 22. Both ends of the pressure roller shaft 23 are connected to the detection bracket 1. Specifically, one end of the pressure roller shaft 23 is installed on the inner side of the first support plate 121 by screws or welding, and the other end is installed on the inner side of the second support plate 122 in the same way. In use, the copper tube 4 passes directly between the pressure roller shaft 23 and the wheel groove 221, or the pressure roller shaft 23 is connected to the test bracket 1 by hinge. Preferably, the detection bracket 1 is also provided with a through groove 124. The positioning component 2 also includes a magnet 24. The magnet 24 is disposed on one side of the through groove 124. One end of the pressure roller shaft 23 is attracted and fixed in the through groove 124 by the magnet 24, and the other end of the pressure roller shaft 23 is hinged to the detection bracket 1. The positioning assembly 2 also includes a pressure roller bearing 251, a pressure roller bearing retaining ring 252, a shaft pin 253, a pressure roller shaft fixing shaft 254, and a pressure roller shaft fixing shaft bracket 255. The pressure roller bearing 251 is sleeved on the outside of the pressure roller shaft 23, and the pressure roller 25 is sleeved on the outside of the pressure roller bearing 251. The two pressure roller bearing retaining rings 252 are respectively fixed on both sides of the pressure roller bearing 251, so that the pressure roller 25 is fixedly set on the pressure roller shaft 23. The pressure roller shaft fixing shaft bracket 255 is fixedly installed on the detection bracket 1 by bolts. The pressure roller fixing shaft 254 is installed on the pressure roller shaft fixing shaft bracket 255 by two fastening retaining rings 256. The pressure roller shaft 23 is hinged to the pressure roller fixing shaft 254 by the shaft pin 253, and the pressure roller shaft 23 can rotate around the shaft pin 253. The first support plate 121 is provided with a through groove 124, the position of which matches the position of the pressure roller shaft fixing shaft bracket 255, so that the pressure roller shaft 23 is in a horizontal position. Magnet 24 is mounted on the inner side of the first support plate 121 via magnet bracket 241. The material of the contact point between the pressure roller shaft 23 and magnet 24 is iron. When the pressure roller shaft 23 is placed in the through groove 124, the pressure roller shaft 23 and magnet 24 are magnetically connected, effectively preventing the pressure roller 25 from detaching from the through groove 124 during production. Preferably, magnet 24 is a neodymium magnet, which has stronger magnetism. In use, when the pressure roller shaft 23 is pulled and placed in the through groove 124, the pressure roller shaft 23 is fixed in the through groove 124 by magnetic force, and the pressure roller 25 is above the pulley 22. Preferably, through the design of the outer diameter of the pressure roller 25, the outer side of the pressure roller 25 abuts against the outer side of the pulley 22, and the copper tube 4 will not detach from the wheel groove 221. Pulling the pressure roller shaft 23 overcomes the magnetic force and rotates around the shaft pin 253, detaching it from the through groove 124, and the pressure roller 25 detaches from the pulley 22. At this time, it is convenient for the copper tube 4 to be placed directly in the wheel groove 221.

[0037] Furthermore, the pressure roller 25 and pulley 22 are made of nylon. Using nylon reduces the likelihood of scratches on the copper tube 4 during the production process.

[0038] Example 2

[0039] Please see Figure 6 and Figure 7 The positioning component 2 is a positioning cover 26, which has a cavity 261 through which the copper tube 4 passes. Two support shafts 21 are respectively connected to the outer side of the positioning cover 26. Specifically, the two support shafts 21 are respectively welded to the two outer sides of the positioning cover 26. The cavity 261 is arranged along the axial direction of the positioning cover 26, and the inner diameter of the cavity 261 matches the outer diameter of the copper tube 4. The positioning cover 26 also has an outlet 262 and an inlet 263 communicating with the cavity 261. The outlet 262 and the inlet 263 have V-shaped grooves, forming a structure with a large opening and a small cavity, which facilitates the entry or exit of the copper tube 4. Preferably, the positioning cover 26 is made of nylon.

[0040] Further, please refer to Figure 1 The rear end face of the detection bracket 1 is provided with a first groove 13. Specifically, the first mounting plate 111 has multiple through first grooves 13 along its height direction, and the corresponding surface of the forming machine base 5 is provided with positioning holes 51 that mate with the first grooves 13, so as to facilitate the adjustment of the vertical movement position of the detection bracket 1, and then fix it with hexagonal bolts, so that the tube breakage detection sensor 3 is closer to or farther away from the outside of the copper tube 4 depending on the application scenario. Preferably, there are two first grooves 13.

[0041] Further, please refer to Figure 1 The upper surface of the detection bracket 1 has a second groove 14, and the broken pipe detection sensor 3 is installed on the upper surface of the detection bracket 1 along the second groove 14. Specifically, the broken pipe detection sensor 3 has a sensor bracket 31 with external threads, and the sensor bracket 31 is fixed in the second groove 14 by a nut 32 engaging with the external threads. The surface of the second support plate 122 has a through groove 14, and the broken pipe detection sensor 3 moves along the second groove 14, which facilitates adjustment so that the broken pipe detection sensor 3 is moved to a position directly below the copper pipe 4.

[0042] The present invention discloses a tube breakage detection device in which a positioning component 2 and a tube breakage detection sensor 3 are installed in a detection bracket 1 for positioning. A copper tube 4 passes through the positioning component 2, which provides positioning constraint for the copper tube 4. Even under external force, the copper tube 4 remains stable in the same position, i.e., the copper tube 4 is positioned above the tube breakage detection sensor 3. This makes the signal detected by the photoelectric switch more stable, preventing the equipment from stopping when there is no tube breakage, thus improving production efficiency. The detection bracket 1 has symmetrical L-shaped grooves 123, which can fix the positioning component 2 on the detection bracket 1 without additional fixing devices. When the positioning component 2 needs to be replaced, it is easy to disassemble or install, improving production efficiency. A pressure roller 25 is provided to effectively prevent the pressure roller 25 from detaching from the through groove 124 during production. The rear end face of the detection bracket 1 has a first groove 13 and a second groove 14, which facilitates the adjustment of the tube breakage detection sensor 3 to a suitable position directly below the copper tube 4.

[0043] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific implementation method of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of the spirit of this utility model should be included within the protection scope of this utility model.

Claims

1. A pipe break detection apparatus, characterized by, include: The detection bracket (1), positioning component (2) and tube breakage detection sensor (3) are installed inside the detection bracket (1). The copper tube (4) passes through the positioning component (2), and the positioning component (2) constrains the copper tube (4) to be located above the tube breakage detection sensor (3).

2. The pipe break detection apparatus of claim 1, wherein The positioning component (2) is provided with a support shaft (21), and the two ends of the support shaft (21) are connected to the detection bracket (1).

3. The pipe break detection apparatus of claim 2, wherein The testing bracket (1) is provided with symmetrical L-shaped grooves (123), and the two ends of the support shaft (21) are slidably embedded in the L-shaped grooves (123).

4. The pipe break detection apparatus according to claim 2 or 3, characterized by The positioning component (2) includes a pulley (22), a support shaft (21) passes through the pulley (22), the pulley (22) has a groove (221), and the copper tube (4) passes through the groove (221) and is located above the tube breakage detection sensor (3).

5. The pipe break detection apparatus of claim 4, wherein The positioning assembly (2) also includes a pressure roller (25) and a pressure roller shaft (23). The pressure roller (25) is sleeved on the outside of the pressure roller shaft (23) and located above the pulley (22). Both ends of the pressure roller shaft (23) are connected to the detection bracket (1).

6. The pipe breakage detection device according to claim 5, characterized in that, The detection bracket (1) is also provided with a through groove (124), and the positioning component (2) also includes a magnet (24); the magnet (24) is located on one side of the through groove (124), one end of the pressure roller shaft (23) is attracted and fixed in the through groove (124) by the magnet (24), and the other end of the pressure roller shaft (23) is hinged to the detection bracket (1).

7. The pipe break detection apparatus according to claim 5 or 6, characterized by The pressure roller (25) and pulley (22) are made of nylon.

8. The pipe break detection apparatus according to claim 2 or 3, characterized by The positioning component (2) is a positioning cover (26), which has a cavity (261) through which the copper tube (4) passes, and two support shafts (21) are respectively connected to the outside of the positioning cover (26).

9. The pipe break detection apparatus of claims 1, 2, 3, 5, or 6, wherein, The rear end face of the detection bracket (1) is provided with a first groove (13).

10. The pipe break detection apparatus of claims 1, 2, 3, 5, or 6, wherein, The upper end face of the detection bracket (1) is provided with a second groove (14), and the broken pipe detection sensor (3) is installed on the upper end face of the detection bracket (1) along the second groove (14).

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