Yarn trolley conveying device

Abstract

The invention relates to the field of chemical fiber production and manufacturing, and discloses a silk vehicle conveying device, a balance detection block is arranged between a crawler-type conveyor and a guide rail, the balance detection block is matched with a detection mechanism for judging whether the balance detection block is extruded by a silk vehicle, and an elastic reset mechanism for driving the balance detection block to reset is arranged on the detection mechanism. According to the silk trolley conveying device, the silk trolley on the ground can be easily transferred to the supporting wheels of the guide rails through the driving mechanism and the crawler-type conveyor, so that the operation efficiency and convenience are effectively improved, and the carrying safety of the silk trolley is guaranteed. Through the cooperation of the balance detection block and the detection mechanism, the balance state of the silk vehicle in the horizontal direction before the silk vehicle is lifted can be effectively judged, so that the situation that after the silk vehicle is lifted, large position deflection occurs in the conveying process through the crawler-type conveyor is prevented, and the precision of the silk vehicle during transferring is improved. The elastic reset mechanism can drive the balance detection block to reset after the thread vehicle is lifted so as to wait for balance detection of the next round.

Description

Technical Field

[0001] The invention relates to the field of chemical fiber production and manufacturing, and in particular to a fiber conveying device. Background Art

[0002] The wire cart is a transport device used to load large quantities of wire cakes for transporting them. However, the fully loaded wire cart is heavy and can easily damage the rollers of the wire cart and the floor of the workshop during use. In order to solve the above problems, the industry has introduced a wire cart conveying device, such as Figure 1 As shown, it mainly includes two guide rails 1 laid on the ground and arranged in parallel, and the upper surface of the guide rail 1 is arranged along its length direction with a plurality of support wheels 2 for supporting the bottom of the wire cart 37, so that the roller 29 of the wire cart 37 can be off the ground. In this way, the wire cart 37 can not only save more effort during long-distance transmission, but also effectively reduce the damage to the roller 29 and the workshop floor.

[0003] However, the above-mentioned wire cart conveying device has a large height difference between the support wheel 2 on the guide rail 1 and the ground, and a crane or forklift is needed to transfer the wire cart 37 from the ground to above the support wheel 2. This is not only cumbersome to operate, but also poses a great safety hazard, and therefore needs to be improved. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a wire cart conveying device, which can transfer the wire cart on the ground to the supporting wheels of the guide rail through a driving mechanism and a crawler conveyor, thereby improving operational efficiency and convenience and ensuring operational safety.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: A wire conveying device, comprising a guide rail laid on the ground, a plurality of support wheels being rotatably arranged on the upper surface of the guide rail along its length direction, a base buried in the ground being arranged at the front end of the guide rail, a support member corresponding to the guide rail being arranged one by one above the base, a crawler conveyor being arranged on the support member, a driving mechanism connected to the support member to drive the crawler conveyor to rise and fall being arranged in the base; a balance detection block being arranged between the crawler conveyor and the guide rail, the balance detection block being equipped with a detection mechanism for judging whether the balance detection block is squeezed by the wire conveyor, an elastic reset mechanism for driving the balance detection block to reset being arranged on the detection mechanism, a detection module for contacting a conveying belt of the crawler conveyor to detect a change in the friction coefficient on the surface of the conveying belt being arranged on the side of the balance detection block close to the crawler conveyor; When the wire cart squeezes the balance detection block and is determined to be in a balanced state, the driving mechanism drives the crawler conveyor to rise to support the bottom of the wire cart and lift the wire cart; when the wire cart is lifted to a height that is free from the balance detection block, the elastic reset mechanism drives the balance detection block to reset, so that the detection module is close to the end of the crawler conveyor close to the guide rail, and then the crawler conveyor runs to transfer the wire cart to the supporting wheel, and the change in the friction coefficient of the conveyor belt is detected by the detection module.

[0006] By adopting the above scheme, the wire cart on the ground can be easily transferred to the support wheel of the guide rail through the driving mechanism and the crawler conveyor, thereby effectively improving the operating efficiency and convenience, and ensuring the safety of the wire cart handling. The cooperation between the balance detection block and the detection mechanism can effectively determine the balance state of the wire cart in the horizontal direction before it is lifted, so as to prevent the wire cart from having a large position deflection during the transmission through the crawler conveyor after it is lifted, thereby improving the accuracy of the wire cart transfer. The elastic reset mechanism can not only drive the balance detection block to reset after the wire cart is lifted to wait for the next round of balance detection, but also drive the detection module on the balance detection block to be close to the transmission belt of the crawler conveyor to obtain the friction coefficient of the transmission belt, so as to facilitate the staff to replace the transmission belt in time according to the attenuation of the friction coefficient, thereby ensuring the transmission efficiency and balance of the crawler conveyor, making the wire cart more stable during the transfer to the support wheel and less prone to horizontal deflection.

[0007] Preferably, the detection mechanism includes an extrusion rod arranged on the side of the balance detection block away from the crawler conveyor and a pressure sensor arranged above the base for the extrusion rod to press against.

[0008] With the above solution, the pressure exerted by the wire machine on the balance detection block can be transmitted to the extrusion rod, so by detecting the pressure from the extrusion rod through the pressure sensor 1, it can be effectively determined whether the balance detection block is squeezed by the wire machine. Since the extrusion rod protrudes relatively from the side of the balance detection block, it can effectively improve the triggering accuracy of the pressure sensor 1, thereby improving the triggering sensitivity of the detection mechanism.

[0009] Preferably, a controller is coupled to the pressure sensor 1, and the drive mechanism and the crawler conveyor are coupled to and controlled by the controller. When all the pressure sensors 1 detect the pressure from the corresponding extrusion rods, the controller controls the operation of the drive mechanism and the crawler conveyor.

[0010] By adopting the above scheme, when the wire cart meets the conditions of balanced transmission before lifting, the driving mechanism and the crawler conveyor can be automatically triggered to realize automatic lifting and transfer of the wire cart.

[0011] Preferably, a first bracket is provided on the base and is located between the pressure sensor 1 and the balance detection block, and the extrusion rod is slidably disposed through the first bracket.

[0012] By adopting the above solution, the sliding cooperation between the extrusion rod and the first bracket can effectively improve the stability and smoothness of the extrusion rod during movement, thereby ensuring the operating efficiency and accuracy of the detection mechanism.

[0013] Preferably, the elastic reset mechanism includes at least one set of guide spring components arranged between the first bracket and the balance detection block.

[0014] Preferably, the guide spring assembly includes a guide rod disposed on the balance detection block and slidably passing through the first bracket, and an elastic member disposed on the guide rod so that the balance detection block has a tendency to move away from the first bracket.

[0015] By adopting the above scheme, the guide spring assembly can effectively improve the resetting efficiency and accuracy of the balance detection block, and ensure the stability of the balance detection block in the vertical direction, so that it can effectively assist the detection module to detect the friction coefficient on the transmission belt of the crawler conveyor.

[0016] Preferably, a first anti-dropping member is provided at the end of the guide rod to prevent the guide rod from detaching from the first bracket.

[0017] By adopting the above solution, the structure of the guide spring assembly is more stable and not easy to fall apart.

[0018] Preferably, the detection module includes a friction detection block that is longitudinally slidably arranged on a side of the balance detection block close to the crawler conveyor to contact the conveyor belt, an extrusion member that is arranged on a side of the friction detection block close to the balance detection block, and a second pressure sensor that is arranged on a side of the balance detection block close to the friction detection block for the extrusion member to longitudinally extrude and output a measured pressure value signal, the second pressure sensor is coupled to a controller for receiving the pressure value signal, and the controller is coupled to a prompt unit; When the pressure value measured by the second pressure sensor is less than the built-in threshold value of the controller, the controller controls the prompt unit to work; otherwise, the prompt unit does not work.

[0019] With the above solution, when the detection module is in close contact with the conveyor belt of the crawler conveyor and the crawler conveyor starts to run, the conveyor belt can produce a vertical downward relative displacement with the friction detection block, so that the sliding friction between the two drives the extrusion piece on the friction detection block to longitudinally extrude the pressure sensor 2 on the balance detection block, and then indirectly judge the change in the friction coefficient on the surface of the conveyor belt through the change in the pressure value measured by the pressure sensor 2. When the pressure value measured by the pressure sensor 2 is lower than the built-in threshold of the controller, it means that the friction coefficient of the conveyor belt is too low, resulting in insufficient downward pressure applied to the friction detection block. At this time, the controller can control the prompt unit to work to remind the staff to replace the conveyor belt in time, thereby ensuring the operation stability of the crawler conveyor.

[0020] Preferably, a sliding rod and a sliding sleeve are respectively provided on the opposite surfaces of the balance detection block and the friction detection block. The sliding sleeve is longitudinally slidably sleeved on the sliding rod, and a second anti-detachment member is provided at the end of the sliding rod to prevent the sliding sleeve from detaching from the sliding rod.

[0021] By adopting the above solution, the sliding cooperation between the sliding rod and the sliding sleeve can effectively improve the stability and smoothness of the longitudinal micro-movement of the friction detection block, thereby effectively improving the detection efficiency and accuracy of the detection module. The second anti-slip component can effectively prevent the sliding sleeve from detaching from the sliding rod, thereby ensuring the structural stability of the detection module.

[0022] Preferably, a wiping piece is provided on a side of the friction detection block away from the balance detection block, and when the balance detection block is in close contact with the crawler conveyor in operation, the conveyor belt and the wiping piece produce relative displacement.

[0023] By adopting the above solution, the dust on the surface of the conveyor belt can be effectively wiped off through the relative displacement between the wiping member and the conveyor belt, thereby avoiding the trouble of manual cleaning.

[0024] Preferably, a proximity switch is provided on the guide rail for detecting whether the wire car is approaching to output a proximity signal, a controller for receiving the proximity signal is coupled to the proximity switch, and the driving mechanism and the crawler conveyor are coupled to and controlled by the controller; When the proximity switch detects that the wire car is approaching, the controller controls the crawler conveyor to stop running and drives the crawler conveyor to descend through the driving mechanism.

[0025] By adopting the above solution, after the wire car is transferred to the guide rail, the crawler conveyor can automatically stop and reset, thereby facilitating the connection with a new wire car.

[0026] The present invention has significant technical effects due to the adoption of the above technical solutions: through the driving mechanism and the crawler conveyor, the wire cart on the ground can be easily transferred to the support wheel of the guide rail, thereby effectively improving the operating efficiency and convenience, and ensuring the safety of the wire cart handling. The cooperation between the balance detection block and the detection mechanism can effectively determine the balance state of the wire cart in the horizontal direction before it is lifted, so as to prevent the wire cart from being greatly deflected during the transmission through the crawler conveyor after it is lifted, thereby improving the accuracy of the wire cart transfer. The elastic reset mechanism can not only drive the balance detection block to reset after the wire cart is lifted to wait for the next round of balance detection, but also drive the detection module on the balance detection block to be close to the transmission belt of the crawler conveyor to obtain the friction coefficient of the transmission belt, so as to facilitate the staff to replace the transmission belt in time according to the attenuation of the friction coefficient, thereby ensuring the transmission efficiency and balance of the crawler conveyor, making the wire cart more stable during the transfer to the support wheel and less prone to horizontal deflection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a wire conveying device in the prior art; Figure 2 The structure of this embodiment is shown in FIG. Figure 1 ; Figure 3 for Figure 2 An enlarged schematic diagram of section A is shown; Figure 4 The structure of this embodiment is shown in FIG. Figure 2 ; Figure 5 for Figure 4 An enlarged schematic diagram of portion B is shown; Figure 6 This is a schematic diagram of the state when the front end of the wire machine in this embodiment is against two balance detection blocks at the same time; Figure 7 for Figure 6 An enlarged schematic diagram of section C is shown; Figure 8 This is a schematic diagram of a state in which the wire cart is lifted by the crawler conveyor to be separated from the balance detection block in this embodiment; Fig. 9 for Figure 8 An enlarged schematic diagram of the D portion shown; Fig.10 This is the state in which the wire car is lifted and transferred to the guide rail by the crawler conveyor in this embodiment; Fig.11 The structure of this embodiment is shown in FIG. Figure 3 ; Fig.12 is a system structure diagram of this embodiment; Fig.13 for Figure 2 An enlarged schematic diagram of section E is shown.

[0028] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Guide rail; 2. Support wheel; 3. Base; 4. Support member; 5. Crawler conveyor; 7. Balance detection block; 10. Conveyor belt; 12. Extrusion rod; 13. Pressure sensor 1; 14. Controller; 15. First bracket; 16. Guide spring assembly; 17. Guide rod; 18. Elastic member; 19. First anti-slip member; 20. Friction detection block; 21. Extrusion member; 22. Pressure sensor 2; 23. Prompt unit; 24. Sliding rod; 25. Sliding sleeve; 26. Second anti-slip member; 27. Wiping member; 28. Proximity switch; 29. ​​Roller; 30. Cylinder; 31. Push rod; 32. Guide rod; 33. Guide hole; 34. Oil pump; 35. Second bracket; 36. Mounting seat; 37. Wire car; 38. Support plate; 39. Pulley; 40. Extrusion block; 41. Third bracket. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] like Figures 2 to 13 As shown, a wire conveying device disclosed in this embodiment includes two guide rails 1 fixedly laid on the ground, and the two guide rails 1 are arranged in parallel. The upper surface of each guide rail 1 is rotatably provided with a plurality of support wheels 2 along its own length direction to support the bottom of the wire car 37, so that the roller 29 at the bottom of the wire car 37 is off the ground. The front end of the guide rail 1 is provided with a base 3 fixedly buried in the ground, the base 3 is located between the two guide rails 1, and its upper surface is flush with the ground. Two support members 4 corresponding to the two guide rails 1 are arranged above the base 3, each support member 4 is in the shape of a horizontal cross bar and is parallel to the corresponding guide rail 1. Crawler conveyors 5 are arranged on the opposite surfaces of the two support members 4, and the upper surface of the conveyor belt 10 of the crawler conveyor 5 is higher than the upper surface of the support member 4. A driving mechanism connected to the support member 4 to drive the crawler conveyor 5 to rise and fall is arranged in the base 3. Specifically, the driving mechanism includes two oil cylinders 30 disposed in the base 3, and the push rods 31 of the two oil cylinders 30 are longitudinally slidably penetrated on the upper surface of the base 3 and are respectively fixedly connected to the lower surfaces of the two support members 4. Two guide rods 32 are vertically disposed on the lower surface of each support member 4, and two guide holes 33 are provided on the upper surface of the base 3 for the two guide rods 32 to slide through. In this embodiment, when the crawler conveyor 5 descends to the lowest position, the upper surface of its conveyor belt 10 is lower than the bottom of the wire car 37. When the crawler conveyor 5 rises to the highest position, the upper surface of its conveyor belt 10 is flush with the upper surface of the support wheel 2.

[0031] In order to realize the automatic operation of the driving mechanism and ensure the balance in the horizontal direction before the wire car 37 is lifted, a balance detection block 7 is arranged between the two crawler conveyors 5 and the corresponding guide rails 1. The two balance detection blocks 7 are equipped with a detection mechanism for judging whether the balance detection block 7 is squeezed by the wire car 37. The detection mechanism includes an extrusion rod 12 fixed laterally to the side of the balance detection block 7 away from the crawler conveyor 5 and a pressure sensor 13 arranged above the base 3 for the extrusion rod 12 to press against. The pressure sensor 13 is preferably a pressure strain gauge. The pressure sensor 13 is coupled to a controller 14, and the controller 14 is preferably a single-chip microcomputer or a PLC. The driving mechanism and the crawler conveyor 5 are coupled and controlled by the controller 14. In this embodiment, the oil cylinder 30 in the driving mechanism is coupled to the controller 14 through the oil pump 34 to realize the precise rise and fall of the driving mechanism. When the two pressure sensors 13 detect the pressure from the corresponding extrusion rod 12, the controller 14 controls the driving mechanism to rise and controls the crawler conveyor 5 to operate.

[0032] In order to improve the stability and smoothness of the extrusion rod 12 during movement and ensure the detection height and stability of the pressure sensor 13, a first bracket 15 located between the pressure sensor 13 and the balance detection block 7 is fixed on the base 3, and the extrusion rod 12 is slidably arranged in the first bracket 15. A second bracket 35 for installing the pressure sensor 13 is also fixed on the base 3, and the pressure sensor 13 is installed on the side of the second bracket 35 close to the crawler conveyor 5.

[0033] In order to achieve the reset of the balance detection block 7, an elastic reset mechanism is provided on the detection mechanism, and the elastic reset mechanism includes two groups of guide spring assemblies 16 arranged between the first bracket 15 and the balance detection block 7 and respectively located on the upper and lower sides of the extrusion rod 12. Specifically, the guide spring assembly 16 includes a guide rod 17 that is transversely fixed to the balance detection block 7 and slidably penetrates the first bracket 15, and an elastic member 18 that is arranged on the guide rod 17 so that the balance detection block 7 has a tendency to move away from the first bracket 15. The elastic member 18 is preferably a compression spring sleeved on the guide rod 17, and the two ends of the compression spring are respectively pressed against the opposite surfaces of the first bracket 15 and the balance detection block 7. The first bracket 15 is provided with a through hole for the guide rod 17 to slide through, and the end of the guide rod 17 is provided with a first anti-slip member 19 with a width greater than the diameter of the through hole, thereby effectively preventing the guide rod 17 from detaching from the first bracket 15.

[0034] In order to detect the attenuation degree of the friction coefficient on the surface of the conveyor belt 10, a detection module for contacting the conveyor belt 10 of the crawler conveyor 5 to detect the change of the friction coefficient on the surface of the conveyor belt 10 is provided on the side of the balance detection block 7 close to the crawler conveyor 5. Specifically, the detection module includes a friction detection block 20 that is longitudinally slidably arranged on the side of the balance detection block 7 close to the crawler conveyor 5 to contact the conveyor belt 10, an extrusion member 21 that is fixedly arranged on the side of the friction detection block 20 close to the balance detection block 7, and a pressure sensor 22 that is arranged on the side of the balance detection block 7 close to the friction detection block 20 for the extrusion member 21 to longitudinally extrude and output the measured pressure value signal. The pressure sensor 22 is also preferably a pressure strain gauge. The controller 14 is coupled to the pressure sensor 22 to receive the pressure value signal. The controller 14 is coupled to a prompt unit 23, and the prompt unit 23 is preferably a buzzer.

[0035] In order to improve the stability and smoothness of the friction detection block 20 during operation, two vertical slide bars 24 are provided on the side of the balance detection block 7 close to the friction detection block 20, and the lower end of the slide bar 24 is fixed to the lower position of the balance detection block 7 through a mounting seat 36. A support plate 38 for mounting the pressure sensor 22 is connected between the two mounting seats 36. Correspondingly, two vertical sliding sleeves 25 are fixed on the side of the friction detection block 20 close to the balance detection block 7, and the two sliding sleeves 25 are respectively longitudinally slidably sleeved on the two slide bars 24. The end of the slide bar 24 is provided with a second anti-slip member 26 to prevent the sliding sleeve 25 from detaching from the slide bar 24. The second anti-slip member 26 is preferably a screw, and its thread is screwed to the end of the slide bar 24 to play a role in longitudinal anti-slip. A gap is maintained between the balance detection block 7 and the friction detection block 20 for the longitudinal movement of the extrusion member 21 and the sliding sleeve 25.

[0036] The specific usage process is as follows: When transporting the wire cart 37, first push the wire cart 37 to the top of the base 3, and make the wire cart 37 between the two support members 4. When the wire cart 37 is pushed to the front end of the guide rail 1, the two fulcrums in the horizontal direction of the front side squeeze the two balance detection blocks 7 respectively, so that the two balance detection blocks 7 can overcome the elastic force of the elastic member 18 and retreat, and press against the corresponding pressure sensor 13 through their respective extrusion rods 12. When the two pressure sensors 13 simultaneously detect the pressure from the corresponding extrusion rods 12, it is determined that the wire cart 37 is in a balanced state. At this time, the controller 14 controls the operation of the two oil cylinders 30 through the oil pump 34 to lift the support member 4, thereby driving the crawler conveyor 5 to press against the bottom of the wire cart 37 and lift the wire cart 37. When the wire cart 37 is lifted to the highest position, the bottom of the wire cart 37 is flush with the support wheel 2 on the guide rail 1, and the wire cart 37 is longitudinally separated from the balance detection block 7. In this state, the elastic reset mechanism drives the balance detection block 7 to reset, so that the friction detection block 20 on the detection module is close to the end of the crawler conveyor 5 close to the guide rail 1, and then the controller 14 controls the crawler conveyor 5 to operate, so as to transmit the wire car 37 to the support wheel 2. During the operation of the crawler conveyor 5, the conveyor belt 10 can produce a longitudinal relative displacement with the corresponding friction detection block 20, so as to press the friction detection block 20 by the sliding friction force, thereby driving the extrusion member 21 on the friction detection block 20 to press against the pressure sensor 22 above the support plate 38, so as to indirectly judge the change of the friction coefficient on the surface of the conveyor belt 10 through the pressure value measured by the pressure sensor 22. In this embodiment, when the pressure value measured by the pressure sensor 22 is less than the built-in threshold of the controller 14, indicating that the friction coefficient on the surface of the conveyor belt 10 is lower than the normal level, the controller 14 controls the prompt unit 23 to work, so as to remind the staff to replace the conveyor belt 10 in time, so as to avoid the transmission efficiency of the two crawler conveyors 5 being too different, resulting in the horizontal position deflection of the wire car 37 during the transmission process. On the contrary, the prompt unit 23 does not work, indicating that the crawler conveyor 5 operates normally.

[0037] The above-mentioned electric control process can be realized by means of a built-in program of the controller 14, which is common knowledge in the art and will not be described in detail here.

[0038] In order to enable the front end of the wire cart 37 to generate a relatively obvious squeezing force, two squeezing blocks 40 are horizontally arranged at the front end of the wire cart 37, respectively used to squeeze the two balance detection blocks 7. A pulley 39 is rotatably arranged on the side of the squeezing block 40 away from the wire cart 37, and the rotation plane of the pulley 39 is vertically arranged to reduce the friction force when the squeezing block 40 longitudinally separates from the balance detection block 7, thereby making the lifting of the wire cart 37 smoother.

[0039] In order to improve the cleaning convenience of the conveyor belt 10, a wiping member 27 is provided on the side of the friction detection block 20 away from the balance detection block 7. The wiping member 27 is preferably a sponge cleaning pad or a brush, which is fixed to the friction detection block 20 by glue. In this embodiment, when the balance detection block 7 is in close contact with the crawler conveyor 5 in the running state, the conveyor belt 10 and the wiping member 27 are relatively displaced, so that the surface of the conveyor belt 10 is automatically cleaned by the wiping member 27, thereby eliminating the trouble of manual wiping.

[0040] If the wiper 27 needs to be cleaned or replaced, first remove the two second anti-slipping members 26 from the slide bar 24 to release the longitudinal locking between the sliding sleeve 25 and the slide bar 24, and then remove the friction detection block 20 connected to the wiper 27 upward. When installing the wiper 27, the two sliding sleeves 25 on the friction detection block 20 are slidably sleeved on the two slide bars 24, and then the second anti-slipping members 26 are reinstalled to longitudinally lock the sliding sleeve 25 on the slide bar 24, thereby completing the installation of the friction detection block 20 and the wiper 27.

[0041] In order to realize the automatic stop of the crawler conveyor 5 and the automatic reset of the driving mechanism, a proximity switch 28 is provided on the guide rail 1 for detecting whether the wire car 37 is approaching to output a proximity signal to the controller 14. The distance between the proximity switch 28 and the front end of the guide rail 1 is equal to or slightly less than the length of the wire car 37, and the proximity switch 28 is fixed to the guide rail 1 by the third bracket 41. In this embodiment, when the proximity switch 28 detects that the wire car 37 is approaching, it means that the wire car 37 has been transferred to the guide rail 1, and the controller 14 controls the crawler conveyor 5 to automatically stop running and drives the oil cylinder 30 to descend by controlling the oil pump 34, so that the support member 4 and the crawler conveyor 5 automatically retreat to the lowest position, so as to facilitate the reception of the next wire car 37.

Claims

1. A wire conveying device, comprising a guide rail (1) laid on the ground, wherein the upper surface of the guide rail (1) is provided with a plurality of supporting wheels (2) rotatably arranged along its length direction, characterized in that: A base (3) buried in the ground is provided at the front end of the guide rail (1); a support member (4) corresponding to the guide rail (1) is provided above the base (3); a crawler conveyor (5) is provided on the support member (4); a driving mechanism connected to the support member (4) to drive the crawler conveyor (5) to rise and fall is provided in the base (3); a balance detection block (7) is provided between the crawler conveyor (5) and the guide rail (1); the balance detection block (7) is equipped with a detection mechanism for determining whether the balance detection block (7) is squeezed by a wire machine (37); an elastic reset mechanism for driving the balance detection block (7) to reset is provided on the detection mechanism; a detection module for contacting a conveyor belt (10) of the crawler conveyor (5) to detect a change in the surface friction coefficient of the conveyor belt (10) is provided on the side of the balance detection block (7) close to the crawler conveyor (5); When the wire cart (37) squeezes the balance detection block (7) and is determined to be in a balanced state, the driving mechanism drives the crawler conveyor (5) to rise to abut against the bottom of the wire cart (37) and lift the wire cart (37); when the wire cart (37) is lifted to a height that is away from the balance detection block (7), the elastic reset mechanism drives the balance detection block (7) to reset, so that the detection module is closely attached to one end of the crawler conveyor (5) close to the guide rail (1), and then the crawler conveyor (5) runs to transfer the wire cart (37) to the support wheel (2), and the change in the friction coefficient of the conveyor belt (10) is detected by the detection module.

2. A wire conveying device according to claim 1, characterized in that: The detection mechanism comprises an extrusion rod (12) arranged on a side of the balance detection block (7) away from the crawler conveyor (5) and a pressure sensor (13) arranged above the base (3) for the extrusion rod (12) to press against.

3. A wire conveying device according to claim 2, characterized in that: A controller (14) is coupled to the pressure sensor 1 (13), and the drive mechanism and the crawler conveyor (5) are coupled to and controlled by the controller (14). When all the pressure sensors 1 (13) detect the pressure from the corresponding extrusion rods (12), the controller (14) controls the drive mechanism and the crawler conveyor (5) to operate.

4. A wire conveying device according to claim 2, characterized in that: A first bracket (15) located between the pressure sensor 1 (13) and the balance detection block (7) is arranged on the base (3), and the extrusion rod (12) is slidably arranged through the first bracket (15).

5. A wire conveying device according to claim 4, characterized in that: The elastic reset mechanism comprises at least one group of guide spring components (16) arranged between the first bracket (15) and the balance detection block (7).

6. A wire conveying device according to claim 5, characterized in that: The guide spring assembly (16) comprises a guide rod (17) arranged on the balance detection block (7) and slidably penetrated through the first bracket (15), and an elastic member (18) arranged on the guide rod (17) so as to make the balance detection block (7) have a tendency to move away from the first bracket (15).

7. A wire conveying device according to claim 6, characterized in that: The end of the guide rod (17) is provided with a first anti-detachment piece (19) for preventing the guide rod (17) from detaching from the first bracket (15).

8. The wire conveying device according to claim 1, characterized in that: The detection module comprises a friction detection block (20) which is longitudinally slidably arranged on a side of the balance detection block (7) close to the crawler conveyor (5) to contact the conveyor belt (10), an extrusion member (21) which is arranged on a side of the friction detection block (20) close to the balance detection block (7), and a second pressure sensor (22) which is arranged on a side of the balance detection block (7) close to the friction detection block (20) so that the extrusion member (21) can longitudinally extrude and output a measured pressure value signal, the second pressure sensor (22) is coupled to a controller (14) for receiving the pressure value signal, and the controller (14) is coupled to a prompt unit (23); When the pressure value measured by the second pressure sensor (22) is less than a threshold value built into the controller (14), the controller (14) controls the prompt unit (23) to operate; otherwise, the prompt unit (23) does not operate.

9. A wire conveying device according to claim 8, characterized in that: A sliding rod (24) and a sliding sleeve (25) are respectively arranged on the opposite surfaces of the balance detection block (7) and the friction detection block (20); the sliding sleeve (25) is longitudinally slidably sleeved on the sliding rod (24); and a second anti-detachment member (26) is arranged at the end of the sliding rod (24) to prevent the sliding sleeve (25) from detaching from the sliding rod (24).

10. The wire conveying device according to claim 8, characterized in that: A wiping piece (27) is provided on one side of the friction detection block (20) away from the balance detection block (7); when the balance detection block (7) is in close contact with the crawler conveyor (5) in a running state, the conveyor belt (10) and the wiping piece (27) produce relative displacement.

11. A wire conveying device according to any one of claims 1 to 10, characterized in that: The guide rail (1) is provided with a proximity switch (28) for detecting whether the wire car (37) is approaching and outputting a proximity signal, the proximity switch (28) is coupled to a controller (14) for receiving the proximity signal, and the drive mechanism and the crawler conveyor (5) are both coupled to and controlled by the controller (14); When the proximity switch (28) detects that the wire cart (37) is approaching, the controller (14) controls the crawler conveyor (5) to stop running and drives the crawler conveyor (5) to descend through the driving mechanism.

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