Paint film continuity monitor for enameled heating wire

Abstract

The utility model discloses a paint film continuity monitor for an enameled heating wire, and relates to the technical field of wire and cable detection. An output shaft of the winding motor is connected with the rotating shaft on one side through a synchronous wheel transmission assembly. The limiting mechanisms are arranged on the winding rollers on the two sides correspondingly. The monitoring base is fixed to the middle side of the upper surface of the bottom plate. A circular hole is formed in the upper side of the monitoring base. The monitoring rods are equivalently inserted into the inner ring wall of the circular hole at equal angles; the abutting springs are fixed to the ends, located in the monitoring base, of the monitoring rods in a one-to-one correspondence mode, and the other ends of the abutting springs are fixedly connected with the inner wall of the monitoring base. A conducting strip is embedded in the movable plate on one side, the conducting strip is connected with a plurality of monitoring rods through a wire, the wire is connected with a control switch, the control switch is connected with the winding motor, a conducting rod abuts against the conducting strip, and the conducting rod is inserted and fixed to the square rod; continuous monitoring can be carried out in the winding process, winding can be stopped after damage is monitored, and therefore the damage position can be confirmed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wire and cable detection, and particularly relates to a varnished heating wire paint film continuity monitor. BACKGROUND

[0002] The varnished wire is a kind of electric wire coated with insulating paint layer on the surface of conductor, and the quality of insulating paint film directly influences the performance and reliability of electrical equipment.The continuity and integrity of paint film are one of important indexes for measuring the quality of varnished wire, and if there are defects (such as pinhole, crack, uneven thickness, etc.) in paint film, it will lead to the decline of electrical insulation performance, and further cause short circuit, electric leakage and other faults, and in serious cases, it can even cause fire or equipment damage, and manual visual inspection is easily affected by factors such as eye fatigue and light conditions, leading to missed detection or false detection, and when using conductivity tester or high-voltage tester for detection, only the overall conductive performance of paint film can be detected, and the defect position cannot be accurately positioned, and the detection sensitivity for small defects is low. SUMMARY

[0003] The utility model discloses to the defects and insufficient of prior art, provide a kind of varnished heating wire paint film continuity monitor with reasonable design, convenient to use, can effectively solve the defects of above-mentioned prior art.

[0004] To achieve the above object, the utility model discloses the following technical scheme: it contains bottom plate, support plate, movable plate and winding roller, the rear side of bottom plate upper surface is fixed with support plate left and right symmetry, the front side of support plate is provided with movable plate, the recess in the bottom plate is inserted to the lower movable plate, and it is connected by bolt, the winding roller is rotatably connected to the shaft on the support plate, the front end of winding roller is inserted with square rod, and the other end of square rod is rotatably connected to the movable plate by shaft;

[0005] Winding motor, the winding motor is embedded in one side of the bottom plate, and the output shaft of the winding motor is connected to the shaft on the winding roller on one side through the synchronous wheel transmission assembly;

[0006] Limiting mechanism, the limiting mechanism is two, and it is respectively arranged on the winding roller on both sides;

[0007] Monitoring seat, the monitoring seat is fixed on the middle side of the upper surface of the bottom plate, and the upper side of the monitoring seat is provided with a circular hole;

[0008] Monitoring rod, the monitoring rod is several, and it is inserted in the inner ring wall of the circular hole in equal amount and equal angle, and the left and right adjacent monitoring rods are staggered;

[0009] Resisting spring, the resisting spring is several, and it is fixed on one end of the monitoring rod in the monitoring seat one by one, and the other end of the resisting spring is fixedly connected with the inner wall of the monitoring seat;

[0010] The conductive sheet is embedded in the movable plate on one side, the conductive sheet is connected with the monitoring rods through wires, the wires are connected with the control switch, the control switch is fixed on the bottom plate, the control switch is connected with the winding motor, the conductive sheet is in contact with the conductive rod, the conductive rod is inserted and fixed on the square rod, and the winding roller is provided with a slot at the position of the side of the square rod.

[0011] Through the above technical scheme, the empty winding roller is sleeved on the winding roller adjacent to the winding motor, the winding roller with the enameled wire is sleeved on the other winding roller, then the one end of the enameled wire is sequentially inserted into the circular hole on the monitoring seat and wound on the empty winding roller, the wire core on the end of the enameled wire is inserted into the slot, and the wire core is connected with the conductive rod through the bolt, at this time, the winding roller is limited by the limiting mechanism, then the winding motor is started, the winding motor drives the winding roller connected therewith to rotate through the synchronous wheel transmission assembly, the winding roller drives the empty winding roller to rotate, so that the enameled wire is wound, in the winding process, the monitoring rods are driven by the contact springs to move to one side of the enameled wire, so that the monitoring rods keep in contact with the enameled wire, and the monitoring rods are equiangular and staggered, so that the missing measurement phenomenon is avoided, when the enameled wire is damaged, the monitoring rods are in contact with the wire core in the enameled wire, at this time, a loop is formed between the monitoring rods, the wires, the conductive sheet, the conductive rod and the enameled wire, so that the control switch can be started, the control switch closes the winding motor, and the winding motor stops winding, so that the staff can be reminded that the enameled wire is damaged.

[0012] As a further improvement of the utility model, the monitoring rod is fixed with a limiting plate on one end inside the monitoring seat, and the limiting plate is slidingly arranged in the cylindrical groove inside the monitoring seat.

[0013] Through the above technical scheme, the stability of the monitoring rod during movement can be improved, and the monitoring rod can be prevented from falling out of the monitoring seat.

[0014] As a further improvement of the utility model, the limiting mechanism comprises:

[0015] The contact plates are equiangularly arranged on the outer side of the winding roller, and the front and rear sides of the inner wall of the contact plate are symmetrically connected with the connecting rods through the hinge seats.

[0016] The adjusting plates are equiangularly fixed with a plurality of sliding plates on the outer ring wall of the adjusting plate, the sliding plates are slidingly arranged in the rectangular slot on the outer ring wall of the winding roller, and the sliding plates are connected with the other end of the connecting rod through the hinge seat after passing through the rectangular slot.

[0017] The bidirectional screw rod is rotatably connected with the winding roller through the bearing, the two ends of the bidirectional screw rod are rotatably connected with the adjusting plates on the two sides through threads, one end of the bidirectional screw rod is exposed on the outer side of the supporting plate after passing through the shaft rod and the supporting plate on one end of the winding roller, and the other end of the bidirectional screw rod is rotatably connected with the other adjusting plate through threads.

[0018] By the above technical scheme, when adjusting, the bidirectional screw rod is rotated, the bidirectional screw rod drives the two adjusting plates on the two sides to move, the adjusting plates drive the sliding plates to move, the sliding plates drive one end of the connecting rod to move through the hinge seat, so that the other end of the connecting rod drives the abutting plate to move outward until the abutting plate abuts on the inner ring wall of the winding roller, and the limiting effect is achieved.

[0019] As a further improvement of the utility model, the outer arc surface of the abutting plate is fixed with anti-skid pads, and the outer peripheral wall of the anti-skid pad is arranged in the same plane with the outer peripheral wall of the abutting plate.

[0020] By the above technical scheme, the stability between the abutting plate and the inner ring wall of the winding roller can be increased.

[0021] As a further improvement of the utility model, one side of the upper surface of the bottom plate is slidably provided with a sliding block, a reciprocating screw rod is threadedly connected in the sliding block, the reciprocating screw rod is rotatably connected to the bottom plate through a bearing, one end of the reciprocating screw rod is connected with a driving motor through a synchronous wheel transmission assembly, the driving motor is embedded in the bottom plate, a moving seat is fixed to the upper side of the sliding block, and a circular hole is arranged on the upper side of the moving seat.

[0022] By the above technical scheme, the enameled wire is threaded in the circular hole during winding, and then the driving motor is started to drive the reciprocating screw rod to rotate, so that the sliding block is driven to reciprocate, and the moving seat is driven to reciprocate, thereby facilitating the enameled wire to be uniformly wound on the empty winding roller.

[0023] As a further improvement of the utility model, a plurality of mounting racks are arranged at equal angles in the circular hole, the mounting racks are all arranged in a "U" shape, the outer wall of the mounting rack is slidably arranged in a sliding groove on the inner wall of the circular hole through a sliding block, the connecting plate in the middle of the mounting rack is connected to the inner wall of the moving seat through a plurality of pushing springs, and a guide wheel is rotatably connected to the mounting rack through a shaft.

[0024] By the above technical scheme, after the enameled wire is located in the circular hole, the mounting rack moves to one side of the enameled wire under the elastic force of the pushing spring, so as to abut on the enameled wire, thereby improving the stability of the enameled wire during movement.

[0025] Compared with the prior art, the enameled heating wire film continuity monitor has the advantages of reasonable structure, low manufacturing cost, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The utility model discloses a structure schematic diagram.

[0027] Figure 2 This is an exploded view of the monitoring base, monitoring rod, and contact spring in this utility model.

[0028] Figure 3 This is an exploded view of the movable plate, winding roller, conductive sheet, control switch, and conductive rod in this utility model.

[0029] Figure 4 This is an exploded view of the winding roller, the limiting mechanism, and the winding motor in this utility model.

[0030] Figure 5 This is an exploded view of the movable seat, reciprocating lead screw, mounting bracket, and guide wheel in this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Base plate; 2. Support plate; 3. Movable plate; 4. Winding roller; 4-1. Grooved section; 5. Square rod; 6. Winding motor; 7. Limiting mechanism; 7-1. Contact plate; 7-2. Connecting rod; 7-3. Adjusting plate; 7-4. Slide plate; 7-5. Bidirectional lead screw; 8. Monitoring seat; 8-1. Circular hole; 9. Monitoring rod; 10. Contact spring; 11. Conductive sheet; 12. Control switch; 13. Conductive rod; 14. Limiting plate; 15. Anti-slip pad; 16. Sliding block; 17. Reciprocating lead screw; 18. Drive motor; 19. Moving seat; 19-1. Circular hole; 20. Mounting bracket; 21. Push spring; 22. Guide wheel. Detailed Implementation

[0033] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1

[0034] like Figures 1-5 As shown, this embodiment includes a base plate 1, a support plate 2, a movable plate 3, and a winding roller 4. The support plate 2 is symmetrically welded and fixed to the rear side of the upper surface of the base plate 1. Movable plates 3 are provided on the front side of each support plate 2. The lower ends of the movable plates 3 are inserted into grooves on the base plate 1 and connected by bolts. Winding rollers 4 are screwed onto each support plate 2 via shafts. A square rod 5 is inserted into the front end of each winding roller 4, and the front end of the square rod 5 is screwed onto the movable plate 3 via a shaft. It also includes:

[0035] The winding motor 6 is embedded in the rear side of the base plate 1, and the output shaft of the winding motor 6 is connected to the shaft on the left winding roller 4 through the synchronous pulley transmission assembly.

[0036] Limiting mechanism 7, there are two limiting mechanisms 7, and they are respectively arranged on the winding rollers 4 on both sides;

[0037] A monitoring seat 8 is fixed on the middle side of the upper surface of the base plate 1 by bolts, and a circular hole 8-1 is formed on the upper side of the monitoring seat 8;

[0038] A plurality of monitoring rods 9 are inserted into the inner ring wall of the circular hole 8-1 at equal intervals and angles, and the left and right adjacent monitoring rods 9 are staggered. A limiting plate 14 is welded and fixed on one end of the monitoring rod 9 inside the monitoring seat 8, and the limiting plate 14 is slidingly arranged in the cylindrical groove inside the monitoring seat 8, which can increase the stability of the monitoring rod 9 during movement and avoid the monitoring rod 9 from falling out of the monitoring seat 8;

[0039] A plurality of abutting springs 10 are welded and fixed on one end of the monitoring rod 9 inside the monitoring seat 8, and the other end of the abutting spring 10 is welded and fixed with the inner wall of the monitoring seat 8;

[0040] A conductive sheet 11 is embedded in the left movable plate 3, and the conductive sheet 11 is connected with the plurality of monitoring rods 9 through wires, and a control switch 12 is connected on the wires. The control switch 12 is fixed on the base plate 1 by bolts, and the control switch 12 is connected with the winding motor 6. The conductive sheet 11 abuts against a conductive rod 13, and the conductive rod 13 is inserted and welded on the square rod 5. The winding roller 4 is provided with a slot 4-1 at the position of one side of the square rod 5. Embodiment two

[0041] Referring to Figure 1 , Figure 4 , the limiting mechanism 7 comprises:

[0042] A plurality of abutting plates 7-1 are arranged at equal angles on the outside of the winding roller 4, and the front and rear sides of the inner wall of the abutting plate 7-1 are symmetrically connected with connecting rods 7-2 through hinge seats. Anti-skid pads 15 are fixed on the outer arc surfaces of the abutting plates 7-1, and the outer peripheral walls of the anti-skid pads 15 are arranged in the same plane with the outer peripheral walls of the abutting plates 7-1, which can increase the stability between the abutting plates 7-1 and the inner ring wall of the winding roller;

[0043] Adjusting plates 7-3 are slidingly arranged in the cylindrical grooves on the front and rear sides of the winding roller 4, and a plurality of sliding plates 7-4 are welded and fixed on the outer ring wall of the adjusting plate 7-3 at equal angles. The sliding plates 7-4 are slidingly arranged in the rectangular grooves on the outer ring wall of the winding roller 4, and the other end of the connecting rod 7-2 is connected with the sliding plate 7-4 through the hinge seat after the sliding plate 7-4 passes through the rectangular groove;

[0044] The bidirectional lead screw 7-5 is screwed into the winding roller 4 via bearings. Both ends of the bidirectional lead screw 7-5 are screwed to the adjusting plates 7-3 on both sides via threads. The rear end of the bidirectional lead screw 7-5 passes through the shaft and support plate 2 at the rear end of the winding roller 4 and is exposed on the outside of the support plate 2. Example 3

[0045] See Figure 1 , Figure 5 As shown, based on Embodiment 1, a sliding block 16 is slidably disposed on one side of the upper surface of the base plate 1. A reciprocating screw 17 is threadedly connected to the inside of the sliding block 16. The reciprocating screw 17 is screwed into the base plate 1 via a bearing. The rear end of the reciprocating screw 17 is connected to a drive motor 18 via a synchronous wheel transmission assembly. The drive motor 18 is embedded in the base plate 1. A movable seat 19 is fixed on the upper side of the sliding block 16. A circular hole 19-1 is opened on the upper side of the movable seat 19. Several mounting brackets 20 are arranged at equal angles in the circular hole 19-1. The mounting brackets 20 are all arranged in a "U" shape. The outer wall of the mounting bracket 20 is slidably disposed in the groove on the inner wall of the circular hole 19-1 via a slider. The connecting plate on the middle side of the mounting bracket 20 is connected to the inner wall of the movable seat 19 via several push springs 21. A guide wheel 22 is screwed into the mounting bracket 20 via a shaft.

[0046] When using this invention, an empty winding roller is placed on a winding roller 4 adjacent to the winding motor 6. Then, a winding roller with enameled wire is placed on another winding roller 4. One end of the enameled wire is then passed through the circular hole 8-1 on the monitoring seat 8 and wound onto the empty winding roller. The wire core at that end is inserted into the slot 4-1 and connected to the conductive rod 13 by bolts. Rotating the bidirectional lead screw 7-5 moves the adjusting plates 7-3 on both sides. The adjusting plates 7-3 move the sliding plate 7-4. The sliding plate 7-4 moves one end of the connecting rod 7-2 via a hinge seat, causing the other end of the connecting rod 7-2 to move the contact plate 7-1 outwards until the contact plate 7-1 abuts against the inner ring wall of the winding roller, achieving a limiting effect. The winding motor 6 is started, and the winding motor 6 drives the winding roller 4 connected to it to rotate through the synchronous pulley transmission assembly. The winding roller 4 drives the empty winding roller to rotate, thereby winding the enameled wire. During the winding process, the contact spring 10 drives the monitoring rod 9 to move to one side of the enameled wire, so that the monitoring rod 9 keeps in contact with the enameled wire. Several monitoring rods 9 are arranged at equal angles and staggered to avoid missed detection. When the enameled wire is damaged, the monitoring rod 9 comes into contact with the wire core inside the enameled wire. At this time, a circuit is formed between the monitoring rod 9, the wire, the conductive sheet 11, the conductive rod 13 and the enameled wire, which can activate the control switch 12. The control switch 12 turns off the winding motor 6, and the winding motor 6 stops winding, thereby reminding the staff that the enameled wire is damaged.

[0047] The enameled wire is threaded in the round hole 19-1 during the winding process, after the enameled wire is located in the round hole 19-1, the mounting frame 20 is moved to one side of the enameled wire under the elastic force of the pushing spring 21, so as to abut on the enameled wire, the stability of the enameled wire during movement is improved, then the driving motor 18 is started, the driving motor 18 drives the reciprocating screw rod 17 to rotate, the reciprocating screw rod 17 drives the sliding block 16 to reciprocate, the sliding block 16 drives the moving seat 19 to reciprocate, so that the enameled wire can be uniformly wound on the empty roll.

[0048] Compared with the prior art, the beneficial effects of the specific embodiment are as follows:

[0049] 1. During the winding process, the monitoring rod 9 is in real-time contact with the enameled wire, which can automatically detect the damage of the paint film and automatically stop winding when problems are found, avoiding further damage;

[0050] 2. Through the cooperation of the winding motor 6, the synchronous wheel transmission assembly and the limiting mechanism 7, automatic winding and detection of the enameled wire are realized, manual intervention is reduced, and the detection efficiency is significantly improved;

[0051] 3. When the monitoring rod 9 detects that the enameled wire is damaged, a loop is formed through the wire, the conductive sheet 11 and the conductive rod 13, triggering the control switch 12 to automatically stop the winding motor 6 from running, this real-time alarm mechanism can quickly remind the operator to handle the problem, reducing the generation of unqualified products;

[0052] 4. Through the cooperation of the reciprocating screw rod 17, the sliding block 16 and the moving seat 19, the enameled wire can be uniformly distributed on the empty roll during the winding process, avoiding damage to the paint film caused by uneven winding.

[0053] For those skilled in the art, the technical solutions described in the foregoing embodiments can be modified, equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A kind of enameled heating wire paint film continuity monitor, it includes bottom plate (1), support plate (2), movable plate (3) and winding roller (4), the back side of the upper surface of the bottom plate (1) is fixed with support plate (2) left and right symmetrical, the front side of support plate (2) is provided with movable plate (3), the lower movable plate (3) is inserted in the recess on the bottom plate (1), and it is connected by bolt, the winding roller (4) is rotatably connected on the support plate (2) by shaft, the front end of the winding roller (4) is inserted with square bar (5), and the other end of the square bar (5) is rotatably connected with the movable plate (3) by shaft;It is characterized by: It also contains: Winding motor (6), the winding motor (6) is embedded in one side of the bottom plate (1), the output shaft of winding motor (6) is connected with the shaft rod on one side of winding roller (4) through synchronous wheel transmission assembly; Limiting mechanism (7), the limiting mechanism (7) is two, and it is respectively arranged on both sides of winding roller (4); Monitoring seat (8), the monitoring seat (8) is fixed on the upper surface of the middle side of the bottom plate (1), the upper side of the monitoring seat (8) is provided with a circular hole (8-1); Monitoring rod (9), the monitoring rod (9) is several, and it is inserted in the inner ring wall of the circular hole (8-1) in equal amount and equal angle, the left and right adjacent monitoring rods (9) are staggered; Resisting spring (10), the resisting spring (10) is several, and it is fixed on one end of the monitoring rod (9) in the monitoring seat (8) one by one, the other end of the resisting spring (10) is fixedly connected with the inner wall of the monitoring seat (8); Conductive sheet (11), the conductive sheet (11) is embedded in one side of the movable plate (3), the conductive sheet (11) is connected with the monitoring rod (9) through the wire, and the wire is connected with the control switch (12), the control switch (12) is fixed on the bottom plate (1), the control switch (12) is connected with the winding motor (6), the conductive sheet (11) is resisted by the conductive rod (13), the conductive rod (13) is inserted and fixed on the square rod (5), the winding roller (4) is provided with a slot (4-1) at the position of one side of the square rod (5).

2. A film continuity monitor for a film for a film-wound heating wire according to claim 1, characterized in that: The end of the monitoring rod (9) in the monitoring seat (8) is fixed with a limiting plate (14), and the limiting plate (14) is slidingly arranged in the cylindrical groove in the monitoring seat (8).

3. An enameled heating wire film continuity monitor according to claim 1, characterized in that: The limiting mechanism (7) comprises: Resisting plate (7-1), the resisting plate (7-1) is several, and it is arranged on the outer side of the winding roller (4) at equal angles, the front and rear sides of the inner wall of the resisting plate (7-1) are symmetrically connected with the connecting rod (7-2) through the hinge seat; Adjusting plate (7-3), the adjusting plate (7-3) is two, and it is symmetrically slidingly arranged in the cylindrical groove on the front and rear sides of the winding roller (4), a plurality of sliding plates (7-4) are fixed on the outer ring wall of the adjusting plate (7-3) at equal angles, the sliding plates (7-4) are slidingly arranged in the rectangular slot on the outer ring wall of the winding roller (4), and the sliding plates (7-4) are connected with the other end of the connecting rod (7-2) through the hinge seat after passing through the rectangular slot; Bidirectional screw rod (7-5), the bidirectional screw rod (7-5) is rotatably connected with the winding roller (4) through a bearing, the two ends of the bidirectional screw rod (7-5) are rotatably connected with the adjusting plates (7-3) on both sides through threads, and one end of the bidirectional screw rod (7-5) is exposed on the outer side of the supporting plate (2) after passing through the shaft rod on one end of the winding roller (4) and the supporting plate (2).

4. An enameled heating wire film continuity monitor according to claim 3, characterized in that: The outer arc surface of the resisting plate (7-1) is fixed with an anti-skid pad (15), and the outer peripheral wall of the anti-skid pad (15) is arranged on the same plane with the outer peripheral wall of the resisting plate (7-1).

5. The enameled heating wire film continuity monitor according to claim 1, characterized in that: The bottom plate (1) upper surface one side is provided with sliding block (16), the inside of sliding block (16) is screwed with reciprocating screw rod (17), reciprocating screw rod (17) is screwed in bottom plate (1) through bearing, one end of reciprocating screw rod (17) is connected with driving motor (18) through synchronous wheel transmission assembly, driving motor (18) is embedded in bottom plate (1), the upper side of sliding block (16) is fixed with moving seat (19), the upper side of moving seat (19) is provided with round hole (19-1).

6. An enameled heating wire film continuity monitor according to claim 5, characterized in that: The round hole (19-1) is provided with several mounting racks (20) at equal angles, the mounting racks (20) are all provided in "U" shape, the outer wall of the mounting rack (20) is slidably arranged in the sliding groove on the inner wall of the round hole (19-1), the connecting plate in the middle of the mounting rack (20) is connected with the inner wall of the moving seat (19) through several push springs (21), and the mounting rack (20) is rotatably connected with the guide wheel (22) through the shaft.

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