Tensioning assembly, broken wire monitoring device and wire cutting machine

Abstract

The utility model provides a tensioning assembly, a broken wire monitoring device and a wire cutting machine. The tensioning assembly comprises a supporting part and a tensioning part, the tensioning part is arranged on the supporting part, the tensioning part comprises a winding structure, the winding structure is rotatably arranged on the supporting part, the winding structure is fixedly connected with one end of the monitoring line, the other end of the monitoring line is fixedly arranged, and the monitoring line is tensioned by the winding structure through rotation; and the indicating part is arranged on the supporting part, the monitoring line is pressed against the indicating part, and the indicating part indicates the tensioning degree of the monitoring line through position change. According to the scheme, the change of the indicating part can provide warning, so that an operator can adjust the tensioning degree in time, and hysteresis of the monitoring effect caused by improper tension is avoided. And compared with a traditional tensioning mode, the mode can rotate the winding structure through indication of the indication part, so that the monitoring line is adjusted to a proper tensioning degree, the accuracy of the monitoring effect is improved, and hysteresis of a traditional monitoring mode is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wire cutting technology, specifically to a tensioning component, a wire breakage monitoring device, and a wire cutting machine. Background Technology

[0002] Currently, wire EDM machines inevitably experience wire breakage during operation, necessitating real-time wire breakage detection to promptly stop the machine. Existing wire breakage detection devices involve manually binding the monitoring wire to a hanging assembly, which is then fixed to one side of the cutting wire. When the cutting wire breaks, it is thrown out, breaking the monitoring wire. The wire breakage detection unit detects this breakage, thus indicating a wire breakage.

[0003] The monitoring line needs to have appropriate tension so that it can be quickly broken by the cutting wire with relatively little force when it comes into contact with the monitoring line. In the existing technology, the tension of the monitoring line cannot be determined during manual binding, which may result in the monitoring line being too loose. As a result, the broken cutting wire cannot break the monitoring line in time, and the monitoring effect is delayed. Utility Model Content

[0004] This invention provides a tensioning component, a wire breakage monitoring device, and a wire cutting machine to solve the problem of lag in the wire breakage monitoring of existing wire cutting machines.

[0005] To address the aforementioned problems, according to one aspect of this utility model, a tensioning assembly is provided, comprising: a support portion; a tensioning portion disposed on the support portion, the tensioning portion including a winding structure rotatably disposed on the support portion, the winding structure being fixedly connected to one end of a monitoring line, the other end of the monitoring line being fixedly disposed, the winding structure tensioning the monitoring line by rotation; and an indicator portion disposed on the support portion, the monitoring line pressing against the indicator portion, the indicator portion indicating the tension of the monitoring line by positional changes.

[0006] Furthermore, the indicator includes a base, an elastic element, and a load-bearing structure, with the elastic element disposed between the base and the load-bearing structure, and the monitoring line pressed against the load-bearing structure.

[0007] Furthermore, the indicator also includes an adjustment rod, which is connected to the base and the support structure. When the support structure is not in contact with the monitoring line, the adjustment rod is used to adjust the distance between the support structure and the base to adjust the compression length of the elastic element.

[0008] Furthermore, the adjusting rod passes through the base and is threadedly connected to the load-bearing structure; the elastic element is a spring, which is sleeved on the adjusting rod.

[0009] Furthermore, the indicator also includes a locking element, which is installed on the load-bearing structure and can be detachably engaged with the adjusting rod to lock the relative position of the load-bearing structure and the adjusting rod; the adjusting rod is a screw rod, with the screw nut engaged with the base stop and the screw rod body and the base clearance engaged.

[0010] Furthermore, the load-bearing structure includes a preload block and a guide post, which are fixedly connected. The guide post is used to support and guide the monitoring line. The preload block is connected to an adjusting rod, and an elastic element is disposed between the preload block and the base.

[0011] Furthermore, the indicator also includes an adjustment plate, which is adjustablely positioned on the support. When the monitoring line presses against the bearing structure, the bearing structure moves toward the base. The adjustment plate and the bearing structure stop cooperate to limit the movement distance of the bearing structure toward the base.

[0012] Furthermore, the adjustment plate has an oblong hole, and the indicator also includes a fastener that passes through the oblong hole and is connected to the support; wherein, the base is fixed to the adjustment plate, or the base is fixed to the support, or the base is adjustablely mounted on the support.

[0013] Furthermore, the tensioning part also includes a locking structure, which is detachably engaged with the winding structure for limiting the circumferential position of the winding structure or limiting the unidirectional rotation of the winding structure.

[0014] Furthermore, the winding structure includes a winding post and a ratchet. The ratchet is sleeved on the winding post, and the winding post is rotatably mounted on the support. The winding post tensions the monitoring line by rotating. The locking structure includes a pawl and an elastic element. The first end of the pawl is hinged to the support, and the other end of the pawl is detachably engaged with the ratchet to limit the unidirectional rotation of the ratchet. The elastic element applies a force toward the ratchet to the other end of the pawl.

[0015] Furthermore, there are two pawls and two elastic elements, with each pawl and elastic element corresponding to the other. The two pawls limit the unidirectional rotation of the ratchet in opposite directions. The locking structure also includes a rotatable adjustment handle, which is used to adjust the position of the two pawls to switch between different pawls and ratchet limit engagements.

[0016] Furthermore, the winding structure includes a winding post, a sleeve, and a locking nut. The sleeve is fitted onto the winding post, and the locking nut is threadedly connected to the winding post. The winding post tensions the monitoring line by rotation, and the locking nut can clamp the end of the monitoring line between the end face of the locking nut and the end face of the sleeve by rotation.

[0017] According to another aspect of the present invention, a wire breakage detection device is provided. The wire breakage detection device includes a monitoring wire, a wire hanging assembly, a wire breakage detection part, and the aforementioned tensioning assembly. The wire hanging assembly and the tensioning assembly are arranged side by side. One end of the monitoring wire is connected to the tensioning assembly, and the other end of the monitoring wire is wound around the wire hanging assembly and then connected to the wire breakage detection part. The wire breakage detection part is used to detect whether the monitoring wire is broken. The portion of the monitoring wire located between the wire hanging assembly and the tensioning assembly is disposed on one side of the part to be monitored.

[0018] According to another aspect of the present invention, a wire cutting machine is provided, which includes a roller assembly, a cutting wire, and the aforementioned wire breakage monitoring device. The cutting wire is wound around the roller assembly to form a wire mesh, and the wire breakage monitoring device is located on one side of the wire mesh. The portion of the monitoring wire located between the hanging assembly and the tensioning assembly corresponds to the wire mesh, and the monitoring wire is broken in the event of wire mesh collapse.

[0019] In this design, the interaction between the winding structure and the support unit ensures the monitoring line remains taut, preventing slack or over-tension. The indicator unit reflects the tension of the monitoring line through positional changes, allowing operators to clearly understand whether the line is at the ideal tension. If the tension is too high or too low, the indicator unit provides a warning, enabling timely adjustment. Furthermore, compared to traditional tensioning methods, this approach allows for adjustment of the monitoring line tension by rotating the winding structure via the indicator unit, improving monitoring accuracy and avoiding the lag inherent in traditional methods. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic diagram of the tensioning assembly provided in Embodiment 1 of this utility model is shown;

[0022] Figure 2 It shows Figure 1 A schematic diagram of the structure of the central indicator section;

[0023] Figure 3 It shows Figure 1 Schematic diagram of the structure of the tension section;

[0024] Figure 4 It shows Figure 3 A schematic diagram of the first operating state of the winding structure and the locking structure;

[0025] Figure 5It shows Figure 3 A schematic diagram of the second operating state of the winding structure and the locking structure;

[0026] Figure 6 A schematic diagram of the wire breakage monitoring device provided in Embodiment 2 of this utility model is shown;

[0027] Figure 7 It shows Figure 6 A schematic diagram of the structure of the wire breakage monitoring unit in the middle;

[0028] Figure 8 A schematic diagram of the wire cutting machine provided in Embodiment 3 of this utility model is shown.

[0029] The above figures include the following reference numerals:

[0030] 10. Support unit; 11. Main support; 12. Adapter support; 13. Rotary wheel;

[0031] 20. Tensioner section;

[0032] 21. Winding structure; 211. Winding post; 212. Ratchet; 213. Sleeve; 214. Locking nut;

[0033] 22. Locking structure; 221. Pawl; 222. Elastic element; 223. Adjusting handle;

[0034] 30. Instruction Department;

[0035] 31. Base; 311. Fixing block;

[0036] 32. Elastic components;

[0037] 33. Load-bearing structure; 331. Preload block; 332. Guide post;

[0038] 34. Adjusting rod; 35. Locking component; 36. Adjusting plate; 37. Fastener;

[0039] 40. Monitoring line;

[0040] 50. Wire breakage detection unit; 51. Wire breakage counterweight; 52. Wire breakage limit shaft; 53. Wire breakage rotating shaft; 54. Proximity switch;

[0041] 60. Hanging wire assembly;

[0042] 70. Roller assembly;

[0043] 80. Tensioning assembly. Detailed Implementation

[0044] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0045] like Figures 1 to 5 As shown, Embodiment 1 of this utility model provides a tensioning component, including: a support part 10; a tensioning part 20, disposed on the support part 10, the tensioning part 20 including a winding structure 21, the winding structure 21 being rotatably disposed on the support part 10, one end of the winding structure 21 being fixedly connected to a monitoring line 40, the other end of the monitoring line 40 being fixedly disposed, the winding structure 21 tensioning the monitoring line 40 by rotation; and an indicator part 30, disposed on the support part 10, the monitoring line 40 pressing against the indicator part 30, the indicator part 30 indicating the tension of the monitoring line 40 by position change.

[0046] In this embodiment, the cooperation between the winding structure 21 and the support part 10 ensures that the monitoring line 40 remains taut, preventing it from becoming slack or over-tightened. The indicator part 30 reflects the tension of the monitoring line 40 through positional changes, allowing the operator to clearly understand whether the monitoring line 40 is at the ideal tension. If the tension of the monitoring line 40 is too high or too low, the change in the indicator part 30 provides a warning, enabling the operator to adjust the tension of the monitoring line 40 in a timely manner. Moreover, compared to traditional tensioning methods, this method allows the winding structure 21 to be rotated by the indication of the indicator part 30, thereby adjusting the tension of the monitoring line 40, improving the accuracy of the monitoring effect and avoiding the lag inherent in traditional monitoring methods.

[0047] like Figure 1 and Figure 2 As shown, the indicator 30 includes a base 31, an elastic element 32, and a support structure 33. The elastic element 32 is disposed between the base 31 and the support structure 33, and the monitoring line 40 is pressed against the support structure 33.

[0048] In this embodiment, the elastic element 32 is disposed between the bearing structure 33 and the base 31. When the monitoring line 40 drives the bearing structure 33 to move downward, the bearing structure 33 will compress the elastic element 32. The degree of compression of the elastic element 32 can reflect the tension of the monitoring line 40, making the tension of the monitoring line 40 visible and avoiding the problem of the tension of the monitoring line 40 being undetermined in the traditional method.

[0049] like Figure 1 and Figure 2 As shown, the indicator 30 also includes an adjustment rod 34, which is connected to the base 31 and the support structure 33. When the support structure 33 is not in contact with the monitoring line 40, the adjustment rod 34 is used to adjust the distance between the support structure 33 and the base 31 to adjust the compression length of the elastic member 32.

[0050] In this embodiment, the tension required for the monitoring line 40 to break is obtained through prior testing and calculation. This calculated tension is then converted into the compression length of the elastic element 32, and this length is recorded. Before using the tensioning assembly, the supporting structure 33 is pre-adjusted by adjusting the adjusting rod 34 to press the supporting structure 33 downwards until the elastic element 32 is almost at its compression length. When using the tensioning assembly, the monitoring line 40 is pressed downwards by rotating the winding structure 21, causing the elastic element 32 to reach the predetermined compression length. At this point, the tension of the monitoring line 40 has reached the expected level.

[0051] like Figure 1 and Figure 2 As shown, the adjusting rod 34 passes through the base 31 and is threadedly connected to the bearing structure 33; the elastic element 32 is a spring, and the elastic element 32 is sleeved on the adjusting rod 34.

[0052] In this embodiment, the base 31 includes two fixing blocks 311. The adjusting rod 34 passes through the two fixing blocks 311 in sequence and is threadedly connected to the bearing structure 33. This allows the operator to adjust the distance between the bearing structure 33 and the base 31 simply by rotating the adjusting rod 34, thereby adjusting the compression length of the elastic element 32. Furthermore, fitting the elastic element 32 between the adjusting rods 34 guides and fixes the elastic element 32, ensuring that it does not shift during compression and preventing subsequent errors in displaying the tension of the monitoring line 40.

[0053] like Figure 1 and Figure 2 As shown, the indicator 30 also includes a locking member 35, which is installed on the support structure 33. The locking member 35 is detachably engaged with the adjusting rod 34 to lock the relative position of the support structure 33 and the adjusting rod 34. The adjusting rod 34 is a screw, with the nut of the screw engaged with the base 31 and the rod body of the screw engaged with the base 31 with clearance.

[0054] In this embodiment, the locking member 35 securely locks the relative positions of the supporting structure 33 and the adjusting rod 34, ensuring the adjusted state is maintained long-term. This prevents accidental loosening or change of the adjusting rod 34 or the supporting structure 33 during use and also prevents misoperation. Furthermore, during pre-adjustment, the stop between the nut of the adjusting rod 34 and the base 31 restricts the range of movement of the adjusting rod 34, preventing it from moving together with the supporting structure 33 and thus avoiding situations where the distance between the supporting structure 33 and the base 31 cannot be adjusted.

[0055] like Figure 1 and Figure 2 As shown, the load-bearing structure 33 includes a pre-tightening block 331 and a guide post 332. The guide post 332 and the pre-tightening block 331 are fixedly connected. The guide post 332 is used to support and guide the monitoring line 40. The pre-tightening block 331 is connected to the adjusting rod 34. The elastic element 32 is disposed between the pre-tightening block 331 and the base 31.

[0056] In this embodiment, the guide post 332 has a U-shaped structure with a circular cross-section. The guide post 332 effectively guides the monitoring line 40 during tensioning, ensuring that the monitoring line 40 is not subjected to excessive friction, thus reducing tension changes or breakage caused by this. The connection between the pretension block 331 and the adjusting rod 34 allows the pretension block 331 to apply pressure to the elastic element during adjustment. When the adjusting rod 34 rotates, the pretension block 331 moves accordingly to ensure that the elastic element 32 is compressed, thereby adjusting the distance between the pretension block 331 and the base 31.

[0057] like Figure 1 As shown, the indicator 30 also includes an adjustment plate 36, which is adjustablely disposed on the support 10. When the monitoring line 40 presses against the bearing structure 33, the bearing structure 33 moves toward the base 31. The adjustment plate 36 and the bearing structure 33 stop each other to limit the movement distance of the bearing structure 33 toward the base 31.

[0058] In this embodiment, the tension required for the monitoring line 40 to break is measured and calculated in advance. Then, the required tension is equivalently replaced by the compression distance of the elastic element 32 and the distance that the adjustment plate 36 needs to move. By adjusting the position of the adjustment plate 36, the range of motion of the bearing structure 33 can be adjusted, thereby controlling the tension of the monitoring line 40. When the bearing structure 33 and the adjustment plate 36 just come into contact, the tension of the monitoring line 40 reaches the expected state.

[0059] The specific implementation of the stop cooperation between the adjustment plate 36 and the bearing structure 33 is that the lower edge of the guide post 332 in the bearing structure 33 and the upper edge of the adjustment plate 36 are stop-fitted. This can effectively limit the movement range of the bearing structure 33. When the bearing structure 33 moves towards the base 31 due to changes in tension, the adjustment plate 36 can ensure that the bearing structure 33 cannot continue to move downward when it touches the upper edge of the adjustment plate 36. This avoids excessive compression or excessive movement, and thus avoids the situation where the cutting line breaks and hits the monitoring line 40, causing the monitoring line 40 and the bearing structure 33 to move downward together, ultimately resulting in the inability to detect the cutting line breakage in time.

[0060] Furthermore, the adjustment plate 36 has an oblong hole, and the indicator 30 also includes a fastener 37, which passes through the oblong hole and is connected to the support 10; wherein, the base 31 is fixed to the adjustment plate 36, or the base 31 is fixed to the support 10, or the base 31 is adjustablely mounted on the support 10.

[0061] In this embodiment, the oblong hole allows the position of the adjusting plate 36 to be freely adjusted. When the fastener 37 passes through the oblong hole and connects to the support 10, the operator can adjust the position of the adjusting plate 36 as needed, increasing the flexibility of the entire tensioning assembly. Furthermore, fixing the base 31 to the adjusting plate 36, or fixing the base 31 to the support 10, or adjusting the position of the base 31 on the support 10, ensures that the position of the base 31 remains unchanged during the compression of the elastic element 32. This avoids excessively loose tension of the monitoring line 40 due to changes in the position of the base 31, thus preventing errors in the monitoring results.

[0062] like Figures 3 to 5 As shown, the tensioning part 20 also includes a locking structure 22, which is detachably engaged with the winding structure 21 for limiting the circumferential position of the winding structure 21 or limiting the unidirectional rotation of the winding structure 21.

[0063] In this embodiment, the locking structure 22 can limit the circumferential position of the winding structure or limit the unidirectional rotation of the winding structure 21, thereby preventing unnecessary rotation or displacement of the winding structure 21 during the tensioning process. When the locking structure 22 is engaged with the circumferential position of the winding structure 21, the winding structure 21 can only rotate in one direction and cannot rotate in the opposite direction, ensuring that the tension of the monitoring line 40 is not affected by the reverse rotation of the winding structure 21.

[0064] like Figures 3 to 5As shown, the winding structure 21 includes a winding post 211 and a ratchet 212. The ratchet 212 is sleeved on the winding post 211, and the winding post 211 is rotatably disposed on the support portion 10. The winding post 211 is rotated to tension the monitoring line 40. The locking structure 22 includes a pawl 221 and an elastic element 222. The first end of the pawl 221 is hinged to the support portion 10, and the other end of the pawl 221 is detachably engaged with the ratchet 212 to limit the unidirectional rotation of the ratchet 212. The elastic element 222 applies a force toward the ratchet 212 to the other end of the pawl 221.

[0065] In this embodiment, the monitoring line 40 can be wound onto the winding post 211 by rotating the ratchet 212. The limiting engagement between the pawl 221 and the ratchet 212 ensures that the ratchet 212 can only rotate in one direction, preventing it from rotating in the opposite direction. The elastic element 222 applies a force towards the ratchet 212 to the other end of the pawl 221, ensuring that the pawl 221 remains engaged with the ratchet 212 throughout its rotation. This ensures that the ratchet 212 will not rotate in the opposite direction due to external force or misoperation, preventing the monitoring line 40 from loosening and thus avoiding any impact on the monitoring effect.

[0066] like Figures 4 to 5 As shown, there are two pawls 221 and two elastic elements 222. The two pawls 221 and the two elastic elements are arranged in a one-to-one correspondence. The two pawls 221 limit the ratchet 212 to rotate in one direction in opposite directions. The locking structure 22 also includes a rotatable adjustment handle 223. The adjustment handle 223 is used to adjust the position of the two pawls 221 to switch different pawls 221 to limit the engagement with the ratchet 212.

[0067] In this embodiment, by setting two pawls 221 and two elastic elements 222, each pawl 221 restricts the rotation of the ratchet 212 in opposite directions. One pawl 221 restricts the ratchet 212 to rotate clockwise, while the other pawl 221 restricts the ratchet 212 to rotate counterclockwise. By adjusting the handle 223, the different pawls 221 and ratchet 212 limit the engagement, thereby switching the unidirectional rotation direction of the ratchet 212, thus adapting to the operating habits of different operators and improving the flexibility of the entire tensioning assembly.

[0068] like Figure 3 As shown, the winding structure 21 includes a winding post 211, a sleeve 213, and a locking nut 214. The sleeve 213 is sleeved on the winding post 211, and the locking nut 214 is threadedly connected to the winding post 211. The winding post 211 tensions the monitoring line 40 by rotation, and the locking nut 214 can clamp the end of the monitoring line 40 between the end face of the locking nut 214 and the end face of the sleeve 213 by rotation.

[0069] In this embodiment, by using the locking nut 214, the operator can simply rotate the locking nut 214 to clamp the end of the monitoring line 40 between the end face of the locking nut 214 and the end face of the sleeve 213, simplifying the fixing process of the monitoring line 40. This eliminates the need for complex clamps or multiple steps, improving operational efficiency. Furthermore, after locking the monitoring line 40 between the end face of the locking nut 214 and the end face of the sleeve 213, rotating the locking nut 214 can press the monitoring line 40 down, fine-tuning the tension of the monitoring line 40. This ensures that the monitoring line 40 breaks when it comes into contact with a cutting wire, ensuring that the monitoring effect is fed back to the operator in real time.

[0070] Specifically, the support unit 10 includes a main support 11, an adapter support 12, and a rotating wheel 13. A tensioning part 20 and an indicator part 30 are respectively installed on both sides of the main support 11. The adapter support 12 is adjustablely connected to the main support 11. The rotating wheel 13 is located at the end of the adapter support 12 furthest from the main support 11, and it limits and guides the monitoring line 40. Installing the tensioning part 20 and the indicator part 30 on both sides of the main support 11 saves space and maintains a compact overall structure. The adjustable connection of the adapter support 12 to the main support 11 better accommodates wire cutting machines of different sizes, ensuring that the length of the monitoring line 40 matches the overall length of the wire cutting machine, thus improving the flexibility of the tensioning assembly. Furthermore, the limiting and guiding effect of the rotating wheel 13 on the monitoring line 40 ensures that the monitoring line 40 will not deviate or wear during operation, guaranteeing the accuracy of the monitoring results.

[0071] Optionally, the support 10 also includes a housing, which is fixed to the main support 11. A tensioning part 20 is installed on the housing, and a guide post is provided on the housing to guide the monitoring line 40. Installing the housing on the support 10 and fixing it to the main support 11 enhances the stability of the overall structure and prevents misalignment of components due to vibration or other factors. Furthermore, the guide post on the housing guides the monitoring line 40, preventing damage caused by friction with other structures and ensuring the accuracy of the monitoring results.

[0072] Embodiment 2 of this utility model provides a wire breakage monitoring device, such as... Figures 6 to 8 As shown, the wire breakage monitoring device includes a monitoring line 40, a hanging assembly 60, a wire breakage monitoring unit 50, and the aforementioned tensioning assembly 80. The hanging assembly 60 and the tensioning assembly 80 are arranged side by side. One end of the monitoring line 40 is connected to the tensioning assembly 80, and the other end of the monitoring line 40 is wound around the hanging assembly 60 and then connected to the wire breakage monitoring unit 50. The wire breakage monitoring unit 50 is used to detect whether the monitoring line 40 is broken. The portion of the monitoring line 40 located between the hanging assembly 60 and the tensioning assembly 80 is positioned on one side of the part to be monitored.

[0073] In this embodiment, the wire breakage detection unit 50 includes a wire breakage counterweight 51, a wire breakage limiting shaft 52, a wire breakage rotating shaft 53, and a proximity switch 54. One end of the wire breakage counterweight 51 is connected to the wire breakage rotating shaft 53, allowing the wire breakage counterweight 51 to rotate around the wire breakage rotating shaft 53. The other end of the wire breakage counterweight 51 is connected to the monitoring line 40. When the monitoring line 40 breaks, the wire breakage counterweight 51 rotates around the wire breakage rotating shaft 53. The wire breakage limiting shaft 52 is located above the wire breakage counterweight 51 and contacts the wire breakage counterweight 51, limiting the position of the wire breakage counterweight 51. The proximity switch 54 is located on the same plane as the wire breakage counterweight 51 and is used to detect whether the position of the wire breakage counterweight 51 has changed. When the cutting wire breaks, the broken cutting wire will break the monitoring line 40. Subsequently, the wire breakage counterweight 51, which is connected to the monitoring line, rotates around the wire breakage rotating shaft 53 under the action of gravity and disengages from the proximity switch, triggering a wire breakage signal, and the equipment immediately stops.

[0074] By placing the monitoring line 40 between the hanging assembly 60 and the tensioning assembly 80, and connecting it to the wire breakage detection unit 50, the system can accurately monitor whether the monitoring line 40 has broken. With both ends of the monitoring line 40 connected to the tensioning assembly 80 and the wire breakage detection unit 50 respectively, a break in the monitoring line 40 can be detected immediately. The wire breakage detection unit 50 can provide real-time feedback on the status of the monitoring line 40, ensuring timely detection of problems and improving the safety of equipment operation.

[0075] Embodiment 3 of this utility model provides a wire cutting machine, such as Figure 8 As shown, the wire cutting machine includes a roller assembly 70, a cutting wire, and a wire breakage monitoring device as described in Embodiment 2. The cutting wire is wound around the roller assembly 70 to form a wire mesh, and the wire breakage monitoring device is located on one side of the wire mesh. The portion of the monitoring wire 40 located between the wire hanging assembly 60 and the tensioning assembly 80 corresponds to the wire mesh, and the monitoring wire 40 is broken in the event of wire mesh collapse.

[0076] In this embodiment, the monitoring line 40 and the cutting wire mesh are in the same working area. Once the wire mesh breaks or fractures, the monitoring line 40 will change or break in a short time, which will be detected by the wire breakage monitoring unit 50, and then the wire cutting machine will stop. This allows for real-time monitoring of the wire mesh status changes, timely detection of problems, and avoidance of further cutting operations that could damage the workpiece or equipment, as well as the avoidance of material waste.

[0077] The above description is merely an optional embodiment of this solution and is not intended to limit the solution. Various modifications and variations can be made to this solution by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this solution should be included within the scope of protection of this solution.

Claims

1. A tensioning assembly, characterized by, The utility model relates to a tensioning device for monitoring line, including: Support part (10); Tensioning part (20) are provided on the support part (10), the tensioning part (20) includes winding structure (21), the winding structure (21) rotatably arranged in the support part (10), one end of winding structure (21) and monitoring line (40) fixed connection, the other end of monitoring line (40) fixed setting, winding structure (21) is tensioned monitoring line (40) through rotation; Indication part (30) are provided on the support part (10), monitoring line (40) is pressed to indication part (30), indication part (30) indicates the tensioning degree of monitoring line (40) through position change.

2. The tensioning assembly of claim 1, wherein, The indication part (30) includes a base (31), a resilient member (32), and a load-bearing structure (33). The resilient member (32) is arranged between the base (31) and the load-bearing structure (33). The monitoring line (40) is pressed against the load-bearing structure (33).

3. The tensioning assembly of claim 2, wherein, The indication part (30) further includes an adjusting rod (34) connected to the base (31) and the load-bearing structure (33). In the case that the load-bearing structure (33) is not in contact with the monitoring line (40), the adjusting rod (34) is used to adjust the distance between the load-bearing structure (33) and the base (31) to adjust the compression length of the resilient member (32).

4. The tensioning assembly of claim 3, wherein, The adjusting rod (34) passes through the base (31) and is threadedly connected to the load-bearing structure (33). The resilient member (32) is a spring, and the resilient member (32) is sleeved on the adjusting rod (34).

5. The tensioning assembly of claim 4, wherein, The indication part (30) further includes a locking member (35) mounted on the load-bearing structure (33). The locking member (35) is detachably limited in position with the adjusting rod (34) to lock the relative position of the load-bearing structure (33) and the adjusting rod (34). The adjusting rod (34) is a screw rod. The nut of the screw rod is stopper-fitted with the base (31), and the rod body of the screw rod is gap-fitted with the base (31).

6. The tensioning assembly of claim 3, wherein, The load-bearing structure (33) includes a pre-tightening block (331) and a wire guide column (332). The wire guide column (332) is fixedly connected with the pre-tightening block (331). The wire guide column (332) is used to carry and guide the monitoring line (40). The pre-tightening block (331) is connected with the adjusting rod (34). The resilient member (32) is arranged between the pre-tightening block (331) and the base (31).

7. The tensioning assembly of claim 2, wherein, The indication part (30) further includes an adjusting plate (36) adjustably arranged on the support part (10). In the case that the monitoring line (40) is pressed against the load-bearing structure (33), the load-bearing structure (33) moves towards the base (31). The adjusting plate (36) is stopper-fitted with the load-bearing structure (33) to limit the moving distance of the load-bearing structure (33) towards the base (31).

8. The tensioning assembly of claim 7, wherein, The adjusting plate (36) has a waist-shaped hole, the indicating part (30) further comprises a fastener (37) penetrating through the waist-shaped hole and connected with the supporting part (10); wherein the base (31) is fixed to the adjusting plate (36), or the base (31) is fixed to the supporting part (10), or the base (31) is adjustably installed on the supporting part (10).

9. The tensioning assembly of claim 1, wherein, The tensioning part (20) further comprises a locking structure (22) detachably and limitingly matched with the winding structure (21), the locking structure (22) is used for limiting the circumferential position of the winding structure (21) or limiting the one-way rotation of the winding structure (21).

10. The tensioning assembly of claim 9, wherein, The winding structure (21) comprises a winding column (211) and a ratchet wheel (212), the ratchet wheel (212) is sleeved on the winding column (211), the winding column (211) is rotatably arranged on the supporting part (10), and the winding column (211) is used for tensioning the monitoring line (40) by rotating; the locking structure (22) comprises a pawl (221) and an elastic element (222), a first end of the pawl (221) is hinged to the supporting part (10), the other end of the pawl (221) is detachably and limitingly matched with the ratchet wheel (212) to limit the one-way rotation of the ratchet wheel (212), and the elastic element (222) applies a force to the other end of the pawl (221) towards the ratchet wheel (212).

11. The tensioning assembly of claim 10, wherein, The pawl (221) and the elastic element (222) are both two, the two pawls (221) and the two elastic elements are arranged one by one, and the two pawls (221) limit the one-way rotation of the ratchet wheel (212) in opposite directions respectively; the locking structure (22) further comprises a rotatable adjusting handle (223), and the adjusting handle (223) is used for adjusting the positions of the two pawls (221) to switch different pawls (221) and the ratchet wheel (212) limitingly matched.

12. The tensioning assembly of claim 1, wherein, The winding structure (21) comprises a winding column (211), a sleeve (213) and a locking nut (214), the sleeve (213) is sleeved on the winding column (211), the locking nut (214) is threadedly connected with the winding column (211), the winding column (211) is used for tensioning the monitoring line (40) by rotating, and the locking nut (214) can clamp the end of the monitoring line (40) between the end face of the locking nut (214) and the end face of the sleeve (213) by rotating.

13. A broken wire monitoring device, characterized by The broken line monitoring device comprises a monitoring line (40), a hanging line assembly (60), a broken line monitoring part (50) and the tensioning assembly (80) of any one of claims 1 to 12, the hanging line assembly (60) and the tensioning assembly (80) are arranged side by side, one end of the monitoring line (40) is connected with the tensioning assembly (80), the other end of the monitoring line (40) is connected with the broken line monitoring part (50) after winding around the hanging line assembly (60), and the broken line monitoring part (50) is used for detecting whether the monitoring line (40) is broken; wherein the part of the monitoring line (40) between the hanging line assembly (60) and the tensioning assembly (80) is arranged on one side of the part to be monitored.

14. A wire saw, characterized in that The wire cutting machine comprises a roller shaft assembly (70), a cutting wire and the broken line monitoring device of claim 13, the cutting wire is wound on the roller shaft assembly (70) to form a wire net, and the broken line monitoring device is located on one side of the wire net, wherein the part of the monitoring line (40) between the hanging line assembly (60) and the tensioning assembly (80) corresponds to the wire net, and the monitoring line (40) is broken in the case that the wire net is broken.

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