An automatic inspection machine for bead wire coating

Abstract

The present invention relates to the technical field of tire bead wire detection, and specifically to an automatic detection machine for tire bead wire coating, comprising a frame, bases are arranged at both ends of the frame, the bases have an inner cavity, the frame is provided with a coating thickness gauge between the two bases, a shock filtering device is arranged in the inner cavity of each base, two fixed clamps are arranged on opposite sides of the two bases, the shock filtering device comprises two upper and lower rows of movable joints horizontally distributed along the moving direction of the tire bead wire, baffles on the same side between two adjacent movable joints at the same horizontal height are elastically connected by a second spring; a limiting roller is installed on the movable joint, the limiting roller is rotatably installed on a mounting seat, the mounting seat is inserted on the movable joint by a vertically extending first guide rod, the first spring elastically connects the mounting seat and the movable joint, the technical scheme clamps and stabilizes the tire bead wire by the fixed clamp, the shock filtering device absorbs the vibration of the tire bead wire in all directions, and avoids bending of the tire bead wire clamping position.

Description

Technical Field

[0001] The invention relates to the technical field of bead wire detection, and in particular to an automatic detection machine for bead wire coating. Background Art

[0002] Bead wire is a steel wire plated with bronze, copper or brass, etc., used to strengthen the tire bead. The wire ring made of bead wire and insulating rubber fixes the outer tire tightly on the rim. When the tire is running, the wire ring is subjected to tension, compression, torsion and centrifugal force. The measurement of steel wire coating is one of the important links in the bead wire production process.

[0003] In recent years, hot-dip galvanizing of steel wire has been widely used to protect the inner metal from oxidation when the steel wire is used. However, due to technical reasons, the measurement method of steel wire coating has stagnated. Although there are many technologies for measuring the thickness of plate coatings, there are still many technical difficulties in the detection of hot-dip galvanizing of steel wire ropes in the market. For the thickness measurement methods, the methods used in the market include: electromagnetic method, camera processing method, and laser sensor measurement method.

[0004] Chinese patent CN115077448A discloses an intelligent detection system for bead wire coating, including a detection platform, on which a detection mechanism and a cleaning mechanism are arranged; the cleaning mechanism includes a fixed tube and a cleaning ring, the fixed tube is fixedly arranged on one side of the detection platform, the fixed tube is arranged parallel to the left and right directions, the cleaning ring is arranged to work with the fixed tube, the cleaning ring is fixedly arranged on the side of the fixed tube away from the detection platform, and bristles are evenly arranged on the inner wall of the cleaning ring. The detector position of the device is fixed, and can only detect the straightened steel wire from top to bottom. The detection angle is single and incomplete, and the thickness of the hot-dip coating of the steel wire is relatively thin. When detecting the coating thickness, the accuracy of the sensor is extremely high. Generally, high-precision sensors have extremely high requirements on the site, and the radius of the bead wire itself is small, the contact surface is small, and the jitter amplitude is large during the production of the steel wire, which brings great difficulties to the measurement. Summary of the invention

[0005] In view of the above problems, it is necessary to provide an automated inspection machine for tire bead wire coating to address the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] An automated inspection machine for tire bead wire coating, comprising a frame, bases are arranged at both ends of the frame, the bases have an inner cavity, a coating thickness gauge is arranged between the two bases on the frame, the coating thickness gauge detects the tire bead wire passing through the inner cavity, a shock filtering device is arranged in the inner cavity of each base, two fixed clamps are arranged on opposite sides of the two bases, a driving unit is arranged on the frame, the driving unit drives the two fixed clamps to clamp and fix the tire bead wire, and the shock filtering device is used to reduce the influence of vibration at both ends of the tire bead wire on the clamping parts of the fixed clamps; the shock filtering device comprises two upper and lower rows of movable joints horizontally distributed along the moving direction of the tire bead wire, two adjacent movable joints at the same horizontal height are rotatably connected by a hinge, the axis of the hinge is vertically arranged, the movable joint closest to one end of the fixed clamp is fixedly installed in the base, vertical baffles are arranged on both sides of the movable joint, and the same The baffle on the same side between two movable joints adjacent at the horizontal height is elastically connected by a second spring; a limit roller is installed on the movable joint, the rotating axis of the limit roller is horizontally arranged, and a wire groove is arranged on the circumference of the limit roller, and the tire bead wire passes through the wire grooves of the upper and lower limit rollers and moves; the limit roller is rotatably installed on the mounting seat, and the mounting seat is inserted into the movable joint through a vertically extending first guide rod, and a first spring is sleeved on the first guide rod, and the first spring elastically connects the mounting seat and the movable joint, and the elastic force applied by the first spring makes the limit roller close to the tire bead wire; the coating thickness gauge has at least one, and the coating thickness gauge is installed on the circumference of one end of the rotating drum, the axis of the rotating drum and the moving path of the tire bead wire are on the same straight line, the tire bead wire passes through the inside of the rotating drum, and the rotating drum is rotatably installed on the fixed frame of the frame, and the rotating drum rotates around its own axis to drive the coating thickness gauge to rotate around the tire bead wire.

[0008] Preferably, mounting holes which vertically penetrate the inner cavity are provided on the upper and lower sides of the base, and the base is slidably installed with limit blocks in the mounting holes on the upper and lower sides; the limit blocks are located above the first guide rod of the limit roller, and the limit blocks are arranged as an inclined surface on one side facing the first guide rod; the inclined surface extends obliquely from one end close to the fixed splint toward a direction away from the first guide rod.

[0009] Preferably, a mounting plate is provided on one side of the mounting hole of the base, a horizontal threaded hole is provided on the mounting plate, a locking bolt is screwed in the threaded hole, and one end of the locking bolt presses the limit block to lock the position of the limit block.

[0010] Preferably, at least two second vertically extending guide rods are provided on the side of the fixed splint away from the tire bead wire, and the second guide rod of the fixed splint is inserted into a guide sleeve provided on the base, and the guide sleeve is provided on the upper and lower sides of the opposite ends of the two bases; a limiting head is provided on the top of the second guide rod, and a third spring is provided on the second guide rod, and the third spring elastically connects the upper end of the guide sleeve and the lower end of the limiting head, and the elastic force applied by the third spring makes the two fixed splints move away from each other.

[0011] Preferably, a soft rubber pad is provided on the opposite side of the fixing splint.

[0012] Preferably, a driving plate extending horizontally along a direction perpendicular to the moving direction of the tire bead wire is provided on one side of the fixed clamping plate, and an inclined section is provided on the driving plate, and the inclined sections of the driving plates of the upper and lower fixed clamping plates gradually approach each other in a horizontal direction away from the fixed clamping plate; the driving plate is inserted into a push cylinder of the driving unit, and the cross-section of the push cylinder is rectangular. The driving plate is inserted into the push cylinder, and the upper and lower sides of the inner wall of the push cylinder are in contact with the driving plate. The driving unit also includes a linear drive that drives the push cylinder to move horizontally along the length direction of the driving plate, and the linear drive drives the push cylinder to fit the inclined section of the driving plate and approaches the fixed clamping plate, driving the two fixed clamping plates to approach each other.

[0013] Preferably, a gear is coaxially arranged at one end of the rotating cylinder; the driving unit also includes a push plate, which is fixedly mounted on the working end of the linear drive, and at least two horizontally extending extension rods are arranged on the push plate, the extension rods pass through guide holes arranged on the push cylinder and are connected with a limit baffle, the limit baffle is located on the side of the push cylinder facing the tire bead wire, the width of the limit baffle is greater than the width of the push cylinder, and a horizontally extending rack is arranged on the side of the limit baffle facing the gear, and the rack is meshed with the gear when it moves to contact the gear; a fourth spring is sleeved on the extension rod, the fourth spring elastically connects the push plate and the push cylinder, and the elastic force applied by the fourth spring makes the push cylinder move away from the push plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Firstly, in the present invention, the two ends of the tire bead wire are clamped and fixed by a fixed clamping plate, so as to improve the stability of the part of the tire bead wire detected by the coating thickness gauge, and shock-absorbing devices are arranged on both sides of the fixed clamping plate. The shock-absorbing device absorbs the vibration of the tire bead wire in various directions through an active joint and a limiting roller, so as to prevent the vibration at the two ends of the tire bead wire from causing the tire bead wire to bend in various directions at a fixed position and causing damage to the structure of the tire bead wire, and the coating thickness gauge can detect the tire bead wire synchronously when the tire bead wire is subjected to other processing, thereby greatly improving the production efficiency of the tire bead wire.

[0016] Secondly, the coating thickness gauge in the present invention is installed on a rotating drum, and the rotating drum is rotatably installed on a fixed frame of a frame. The rotation of the rotating drum can drive the coating thickness gauge to surround the tire bead wire in different directions to detect the coating thickness of the tire bead wire, thereby improving the efficiency and comprehensiveness of the coating detection.

[0017] Thirdly, the present invention first drives the fixed clamping plate to clamp the tire bead wire through the driving unit, and then drives the coating thickness gauge and the rotating drum to rotate to detect the tire bead wire, thereby reducing the number of electrical components and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereogram of an automated inspection machine for bead wire coating;

[0019] Figure 2 yes Figure 1 A local enlarged view of point A;

[0020] Figure 3 It is a side view of an automated inspection machine for bead wire coating;

[0021] Figure 4 yes Figure 3 A cross-sectional view of the section at BB;

[0022] Figure 5 yes Figure 4 A partial enlarged view of point C;

[0023] Figure 6 yes Figure 4 A partial enlarged view of point D;

[0024] Figure 7 It is a top view of an automated inspection machine for bead wire coating;

[0025] Figure 8 yes Figure 7 A cross-sectional view of the section at EE;

[0026] Fig. 9 It is a three-dimensional structural exploded diagram of an automatic inspection machine for bead wire coating;

[0027] Fig.10 yes Fig. 9 A partial enlarged view of point F.

[0028] The numbers in the figure are: 1, frame; 11, base; 111, guide sleeve; 12, inner cavity; 121, mounting hole; 122, limit block; 123, inclined plane; 124, mounting plate; 125, threaded hole; 126, locking bolt; 13, fixing frame; 2, coating thickness gauge; 21, rotating drum; 22, gear; 3, shock filter; 31, movable joint; 311, hinge; 312, baffle; 313, second spring; 32, limit roller; 321 , wire groove; 322, mounting seat; 323, first guide rod; 324, first spring; 4, fixed splint; 41, second guide rod; 411, limit head; 412, third spring; 42, soft rubber pad; 43, drive plate; 431, inclined section; 5, drive unit; 51, push cylinder; 511, guide hole; 52, linear drive; 53, push plate; 531, extension rod; 532, limit baffle; 533, rack; 534, fourth spring. DETAILED DESCRIPTION

[0029] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Reference Figures 1 to 10 :

[0031] An automatic inspection machine for bead wire coating, comprising a frame 1, a base 11 is arranged at both ends of the frame 1, an inner cavity 12 is provided in the base 11, a coating thickness gauge 2 is arranged between the two bases 11, the coating thickness gauge 2 detects the bead wire passing through the inner cavity 12, a shock filter device 3 is arranged in the inner cavity 12 of each base 11, two fixed clamps 4 are arranged on the opposite side of the two bases 11, a driving unit 5 is arranged on the frame 1, and the driving unit 5 drives the two fixed clamps 4 to clamp and fix the bead wire The vibration filtering device 3 is used to reduce the influence of the vibration at both ends of the tire bead wire on the clamping part of the fixed clamping plate 4; the vibration filtering device 3 includes two upper and lower rows of movable joints 31 horizontally distributed along the moving direction of the tire bead wire, and two adjacent movable joints 31 at the same horizontal height are rotatably connected by a hinge 311, and the axis of the hinge 311 is vertically arranged. The movable joint 31 closest to one end of the fixed clamping plate 4 is fixedly installed in the base 11, and vertical baffles 312 are arranged on both sides of the movable joint 31. The baffle plate 312 on the same side of the movable joints 31 is elastically connected by a second spring 313; a limit roller 32 is installed on the movable joint 31, and the rotating shaft of the limit roller 32 is horizontally arranged. A wire groove 321 is arranged on the circumference of the limit roller 32, and the tire bead wire passes through the wire grooves 321 of the upper and lower limit rollers 32 and moves; the limit roller 32 is rotatably installed on the mounting seat 322, and the mounting seat 322 is inserted on the movable joint 31 through a vertically extending first guide rod 323, and a first spring 313 is sleeved on the first guide rod 323 24, the first spring 324 elastically connects the mounting seat 322 and the movable joint 31, and the elastic force applied by the first spring 324 makes the limiting roller 32 close to the tire bead wire; the coating thickness gauge 2 has at least one, the coating thickness gauge 2 is installed on the peripheral side of one end of the rotating drum 21, the axis of the rotating drum 21 is in the same straight line as the moving path of the tire bead wire, the tire bead wire passes through the inside of the rotating drum 21, the rotating drum 21 is rotatably installed on the fixed frame 13 of the frame 1, and the rotating drum 21 rotates around its own axis to drive the coating thickness gauge 2 to rotate around the tire bead wire. The automatic inspection machine in the present application can be installed at the output end of the coating processing device of the tire bead wire. The tire bead wire after coating processing passes through the bases 11 at both ends of the frame 1, and the coating thickness gauge 2 detects the tire bead wire between the two bases 11. In this embodiment, two fixed clamps 4 are arranged on the opposite sides of the two bases 11. The driving unit 5 drives the two fixed clamps 4 to be close to each other to clamp the tire bead wire, so that the tire bead wire part detected by the coating thickness gauge 2 remains stable. When the fixed clamps 4 clamp the tire bead wire, the two parts of the tire bead wire are fixed. At this time, the vibration at both ends of the tire bead wire will drive the tire bead wire to bend in various directions at the fixed position, which may cause damage to the structure of the tire bead wire. In this embodiment, a shock filtering device 3 is arranged in the inner cavity 12 of the base 11. The shock filtering device 3 includes two rows of movable joints 31 horizontally distributed along the moving direction of the tire bead wire, and each movable joint 31 is provided with a limited position roller 32.The limiting roller 32 is rotatably mounted on the mounting seat 322, and the mounting seat 322 is inserted into the movable joint 31 through the first guide rod 323. The elastic force applied by the first spring 324 on the first guide rod 323 makes the upper and lower limiting rollers 32 approach each other and clamp the tire bead wire. When the tire bead wire passes through the base 11, it passes through the wire groove 321 of each limiting roller 32, and the wire groove 321 guides the moving path of the tire bead wire. When the tire bead wire vibrates in the vertical direction, it can drive the limiting rollers 32 on the upper and lower sides to move along the axial direction of the first guide rod 323 and compress the first spring 324. The first spring 324 absorbs the vibration of the tire bead wire in the vertical direction, and because the limiting roller 3 2 has multiple, so the limiting roller 32 can absorb the vibration of the tire bead wire one by one, so that the closer the tire bead wire is to the clamping position of the fixed clamping plate 4, the smaller the movement range is, thereby avoiding damage to the structure of the tire bead wire. Similarly, the movable joints 31 are hinged by the hinges 311, and the movable joints 31 can move in the horizontal direction under the pulling of the tire bead wire. Since the hinges 311 on both sides of the movable joint 31 are elastically connected by the baffle 312, and the movable joint 31 closest to one end of the fixed clamping plate 4 is fixed to the inner wall of the movable joint 31 to maintain a stable position, the baffle 312 keeps the movable joint 31 horizontally arranged in a straight line under no force. When the tire bead wire vibration causes horizontal pulling force on the limiting roller 32 The movable joint 31 can compress the baffle plate 312 on one side to rotate around the axis of the hinge 311, and then the movable joint 31 is driven to reset under the elastic force of the baffle plate 312. The existence of the baffle plate 312 can absorb the vibration of the tire bead wire in the horizontal direction. Since there are multiple movable joints 31, the movable joints 31 can absorb the vibration of the tire bead wire one by one, so that the closer the tire bead wire is to the clamping position of the fixed clamping plate 4, the smaller the movement range is, thereby avoiding damage to the structure of the tire bead wire. The cooperation between the movable joint 31 and the limiting roller 32 enables the shock filtering device 3 to effectively protect the part of the tire bead wire clamped by the fixed clamping plate 4 in all directions, and enables the coating thickness gauge 2 to detect the tire bead wire. The tire bead wire can be processed synchronously while other processing is being performed, thereby greatly improving the production efficiency of the tire bead wire; after the detection is completed, the driving unit 5 drives the fixed clamping plates 4 to move away from each other to release the tire bead wire. After the tire bead wire moves a certain distance, the driving unit 5 drives the fixed clamping plates 4 again to clamp the tire bead wire, and the coating thickness gauge 2 performs coating thickness detection on subsequent parts; one or more coating thickness gauges 2 in this embodiment can be provided, and the coating thickness gauge 2 is installed on a rotating drum 21, and the rotating drum 21 is rotatably installed on the fixed frame 13 of the frame 1. The rotation of the rotating drum 21 can drive the coating thickness gauge 2 to surround the tire bead wire and detect the coating thickness of the tire bead wire in different directions, thereby improving the efficiency and comprehensiveness of the coating detection.

[0032] In order to solve the problem of how to prevent the bead wire from bending at the clamping position of the fixed clamping plate 4 when the vibration amplitude of the bead wire is too large, the following features are specifically set:

[0033] The upper and lower sides of the base 11 are provided with mounting holes 121 that vertically penetrate the inner cavity 12, and the base 11 is slidably installed in the mounting holes 121 on the upper and lower sides; the limit block 122 is located above the first guide rod 323 of the limit roller 32, and the side of the limit block 122 facing the first guide rod 323 is set as an inclined surface 123; the inclined surface 123 extends obliquely from one end close to the fixed splint 4 to a direction away from the first guide rod 323.

[0034] In this embodiment, the length of the movable joint 31 is fixed, so the maximum pulling of the tire bead wire in the horizontal direction can make one end of two adjacent movable joints 31 fit together, thereby locking the rotation range of the movable joint 31, and the position of the movable joint 31 closest to the fixed clamping plate 4 is fixed and cannot rotate, thereby preventing the tire bead wire clamped by the fixed clamping plate 4 from bending in the horizontal direction; the base 11 is provided with limit blocks 122 at the upper and lower parts, and the limit blocks 122 are arranged toward the inclined surface 123 above the first guide rod 323 to limit the maximum rising position of the limit roller 32, and the inclined surface 123 is formed by the end close to the fixed clamping plate 4 It extends obliquely in the direction away from the first guide rod 323 so that the closer the limit roller 32 is to the fixed clamp 4, the smaller the moving range in the vertical direction is. When the amplitude of the tire bead wire in the vertical direction is too large, the rising height of the limit roller 32 can be limited by the limit roller 32 to avoid the tire bead wire clamped by the fixed clamp 4 from bending in the vertical direction; and the limit block 122 is slidably installed in the mounting hole 121 of the base 11. The limit block 122 can move in the vertical direction to change the distance from the top end of the first guide rod 323, thereby adjusting the moving range of the limit roller 32.

[0035] In order to solve the problem of how to lock the position of the limit block 122 in the mounting hole 121, the following features are specifically set:

[0036] The base 11 is provided with a mounting plate 124 on one side of the mounting hole 121 , and a horizontal threaded hole 125 is provided on the mounting plate 124 , and a locking bolt 126 is screwed in the threaded hole 125 , and one end of the locking bolt 126 presses the limit block 122 to lock the position of the limit block 122 .

[0037] In this embodiment, the limit block 122 is slidably installed in the mounting hole 121, and the mounting hole 121 limits the moving path of the limit block 122. The locking bolt 126 spirally installed on the mounting plate 124 on one side of the mounting hole 121 applies pressure to the side of the limit block 122 in the horizontal direction, thereby fixing the position of the limit block 122 in the mounting hole 121, and the operation is simple.

[0038] In order to solve the problem of how the driving unit 5 drives the fixed clamping plate 4 to clamp the tire bead wire, the following features are specifically set:

[0039] At least two vertically extending second guide rods 41 are provided on the side of the fixed splint 4 away from the tire bead wire. The second guide rod 41 of the fixed splint 4 is inserted into a guide sleeve 111 provided on the base 11. The guide sleeve 111 is provided on the upper and lower sides of the opposite ends of the two bases 11; a limiting head 411 is provided on the top of the second guide rod 41, and a third spring 412 is sleeved on the second guide rod 41. The third spring 412 elastically connects the upper end of the guide sleeve 111 and the lower end of the limiting head 411. The elastic force applied by the third spring 412 makes the two fixed splints 4 move away from each other.

[0040] A soft rubber pad 42 is disposed on the opposite side of the fixing splint 4 .

[0041] A driving plate 43 extending horizontally in a direction perpendicular to the moving direction of the tire bead wire is provided on one side of the fixed clamping plate 4, and an inclined section 431 is provided on the driving plate 43. The inclined sections 431 of the driving plates 43 of the upper and lower fixed clamping plates 4 gradually approach each other in a horizontal direction away from the fixed clamping plate 4; the driving plate 43 is inserted into a push cylinder 51 of the driving unit 5, and the cross-section of the push cylinder 51 is rectangular. The driving plate 43 is inserted into the push cylinder 51, and the upper and lower sides of the inner wall of the push cylinder 51 are in contact with the driving plate 43. The driving unit 5 also includes a linear driver 52 that drives the push cylinder 51 to move horizontally along the length direction of the driving plate 43. When the linear driver 52 drives the push cylinder 51 to fit the inclined section 431 of the driving plate 43 and approaches the fixed clamping plate 4, it drives the two fixed clamping plates 4 to approach each other.

[0042] The fixed splint 4 in this embodiment is inserted into the guide sleeve 111 set on the upper and lower sides of the opposite end of the base 11 by the second guide rod 41 to limit the moving direction of the fixed splint 4, ensuring that the fixed splint 4 moves in a straight line direction. In a non-stressed state, the elastic force of the third spring 412 sleeved on the second guide rod 41 makes the two fixed splints 4 move away from each other, and the driving plates 43 set on the fixed splints 4 on the two bases 11 are respectively inserted into the push cylinder 51 of the driving unit 5. As the inclined sections 431 of the driving plates 43 of the upper and lower fixed splints 4 gradually approach each other in the horizontal direction away from the fixed splint 4 and the driving unit 5 5 has a fixed width on the upper and lower sides, so when the linear driver 52 drives the push cylinder 51 to move in the horizontal direction close to the fixed clamping plate 4, the upper and lower sides of the push cylinder 51 are in contact with the inclined sections 431 of the driving plate 43 to move and press the driving plate 43, so that the driving plate 43 drives the two fixed clamping plates 4 to approach each other until the fixed clamping plates 4 are in contact with each other to clamp the tire bead wire. Since the shock filtering device 3 absorbs the vibration of the tire bead wire, a soft rubber pad 42 is provided on the opposite side of the fixed clamping plate 4 in this embodiment. The soft rubber pad 42 can protect the tire bead wire at the clamping position of the fixed clamping plate 4 to prevent wear on the surface of the tire bead wire.

[0043] In order to solve the problem of how to drive the rotating drum 21 to drive the coating thickness gauge 2 to rotate, the following features are specifically set:

[0044] A gear 22 is coaxially arranged at one end of the rotating cylinder 21; the driving unit 5 also includes a push plate 53, which is fixedly mounted on the working end of the linear drive 52, and is provided with at least two horizontally extending extension rods 531, which pass through the guide holes 511 provided on the push cylinder 51 and are connected with the limit baffle 532, the limit baffle 532 is located on the side of the push cylinder 51 facing the tire bead wire, the width of the limit baffle 532 is greater than the width of the push cylinder 51, and a horizontally extending rack 533 is provided on the side of the limit baffle 532 facing the gear 22, and the rack 533 is meshed with the gear 22 when it moves to contact the gear 22; a fourth spring 534 is sleeved on the extension rod 531, and the fourth spring 534 elastically connects the push plate 53 and the push cylinder 51, and the elastic force applied by the fourth spring 534 keeps the push cylinder 51 away from the push plate 53.

[0045] The fourth spring 534 is arranged on the extension rod 531, and the movement of the push plate 53 drives the limit baffle 532 at one end of the extension rod 531 and is close to the rotating drum 21. When the rack 533 on the gear 22 and the limit baffle 532 move to contact with the gear 22, it can mesh with the gear 22 to drive the rotating drum 21 and the coating thickness gauge 2 to rotate, thereby realizing a comprehensive detection of the tire bead wire. After the detection is completed, the working end of the linear drive 52 is away from the tire bead wire. At this time, the rack 533 moves in the opposite direction to drive the coating thickness gauge 2 to reset. After the rack 533 disengages from the gear 22, the limit baffle 532 moves to fit the push cylinder 51. Since the width of the limit baffle 532 is greater than the width of the push cylinder 51, the limit baffle 532 can drive the push cylinder 51 to move in the direction of contact with the pressing of the driving plate 43. The fixed clamping plate 4 is reset under the elastic force of the third spring 412, and the contact is pressed against the tire bead wire. The technical solution drives the fixed clamping plate 4 to clamp the tire bead wire through the driving unit 5 first, and then drives the coating thickness gauge 2 and the rotating drum 21 to rotate to detect the tire bead wire, thereby saving production costs.

[0046] Working principle: the bead wire after coating processing passes through the base 11 at both ends of the frame 1. When the bead wire passes through the base 11, it passes through the wire groove 321 of each limiting roller 32 set on the upper and lower sides of the shock filtering device 3. The wire groove 321 guides the moving path of the bead wire. The driving unit 5 drives the two fixed clamps 4 to approach each other to clamp the bead wire. The movable joint 31 and the limiting roller 32 of the shock filtering device 3 cooperate to provide all-round protection for the part of the bead wire clamped by the fixed clamp 4. The rotating drum 21 rotates to drive the coating thickness gauge 2 to detect the coating thickness of the bead wire in different directions around the bead wire. After the detection is completed, the driving unit 5 drives the fixed clamps 4 to move away from each other to release the bead wire. After the bead wire moves a distance, the driving unit 5 drives the fixed clamps 4 again to clamp the bead wire, and the coating thickness gauge 2 performs coating thickness detection on subsequent parts.

[0047] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An automatic inspection machine for bead wire coating, comprising a frame (1), bases (11) are arranged at both ends of the frame (1), the bases (11) have inner cavities (12), a coating thickness gauge (2) is arranged between the two bases (11) on the frame (1), the coating thickness gauge (2) inspects the bead wire passing through the inner cavity (12), and is characterized in that: A vibration filtering device (3) is arranged in the inner cavity (12) of each base (11); two fixed clamping plates (4) are arranged on opposite sides of the two bases (11); a driving unit (5) is arranged on the frame (1); the driving unit (5) drives the two fixed clamping plates (4) to clamp and fix the tire bead wire; the vibration filtering device (3) is used to reduce the influence of vibration at both ends of the tire bead wire on the clamping portion of the fixed clamping plates (4); The vibration filtering device (3) comprises two upper and lower rows of movable joints (31) horizontally distributed along the moving direction of the tire bead wire, two adjacent movable joints (31) located at the same horizontal height are rotatably connected via a hinge (311), the axis of the hinge (311) is vertically arranged, the movable joint (31) closest to one end of the fixed clamping plate (4) is fixedly installed in the base (11), vertical baffles (312) are arranged on both sides of the movable joint (31), and the baffles (312) on the same side between two adjacent movable joints (31) at the same horizontal height are elastically connected via a second spring (313); A limit roller (32) is installed on the movable joint (31), the rotation axis of the limit roller (32) is arranged horizontally, a wire groove (321) is arranged on the circumference of the limit roller (32), and the tire bead wire passes through the wire grooves (321) of the upper and lower limit rollers (32) and moves; The limiting roller (32) is rotatably mounted on the mounting seat (322); the mounting seat (322) is inserted into the movable joint (31) via a vertically extending first guide rod (323); a first spring (324) is sleeved on the first guide rod (323); the first spring (324) elastically connects the mounting seat (322) and the movable joint (31); the elastic force applied by the first spring (324) causes the limiting roller (32) to approach the tire bead wire; The coating thickness gauge (2) has at least one coating thickness gauge (2), which is mounted on the circumferential side of one end of a rotating drum (21). The axis of the rotating drum (21) and the moving path of the tire bead wire are on the same straight line. The tire bead wire passes through the interior of the rotating drum (21). The rotating drum (21) is rotatably mounted on a fixed frame (13) of the frame (1). The rotating drum (21) rotates around its own axis, driving the coating thickness gauge (2) to rotate around the tire bead wire.

2. The automatic inspection machine for bead wire coating according to claim 1, characterized in that: The base (11) is provided with mounting holes (121) vertically penetrating the inner cavity (12) on the upper and lower sides, and the base (11) is slidably mounted with limit blocks (122) in the mounting holes (121) on the upper and lower sides; The limiting block (122) is located above the first guide rod (323) of the limiting roller (32), and a side of the limiting block (122) facing the first guide rod (323) is provided as an inclined surface (123); The inclined surface (123) extends obliquely from an end close to the fixed clamping plate (4) in a direction away from the first guide rod (323).

3. The automatic inspection machine for bead wire coating according to claim 2, characterized in that: The base (11) is provided with a mounting plate (124) on one side of the mounting hole (121), and a horizontal threaded hole (125) is provided on the mounting plate (124). A locking bolt (126) is screwed in the threaded hole (125), and one end of the locking bolt (126) presses the limit block (122) to lock the position of the limit block (122).

4. The automatic inspection machine for bead wire coating according to claim 1, characterized in that: At least two second guide rods (41) extending vertically are arranged on a side of the fixed clamping plate (4) away from the tire bead wire, the second guide rods (41) of the fixed clamping plate (4) are inserted into guide sleeves (111) arranged on the base (11), and the guide sleeves (111) are arranged on upper and lower sides of opposite ends of the two bases (11); A limiting head (411) is provided at the top end of the second guide rod (41), and a third spring (412) is sleeved on the second guide rod (41). The third spring (412) elastically connects the upper end of the guide sleeve (111) and the lower end of the limiting head (411). The elastic force applied by the third spring (412) causes the two fixed clamping plates (4) to move away from each other.

5. The automatic inspection machine for bead wire coating according to claim 4, characterized in that: A soft rubber pad (42) is provided on the opposite side of the fixed splint (4).

6. The automatic inspection machine for bead wire coating according to claim 5, characterized in that: A driving plate (43) extending horizontally in a direction perpendicular to the moving direction of the tire bead wire is provided on one side of the fixed clamping plate (4), and an inclined section (431) is provided on the driving plate (43), and the inclined sections (431) of the driving plates (43) of the upper and lower fixed clamping plates (4) gradually approach each other in a horizontal direction away from the fixed clamping plate (4); The driving plate (43) is inserted into a push tube (51) of the driving unit (5). The push tube (51) has a rectangular cross section. The driving plate (43) is inserted into the push tube (51). The upper and lower sides of the inner wall of the push tube (51) are in contact with the driving plate (43). The driving unit (5) further comprises a linear driver (52) for driving the push tube (51) to move horizontally along the length direction of the driving plate (43). When the linear driver (52) drives the push tube (51) to contact the inclined section (431) of the driving plate (43) and approach the fixed clamping plate (4), the two fixed clamping plates (4) are driven to approach each other.

7. The automatic inspection machine for bead wire coating according to claim 6, characterized in that: A gear (22) is coaxially disposed at one end of the rotating drum (21); The driving unit (5) further comprises a push plate (53), the push plate (53) being fixedly mounted on the working end of the linear drive (52), the push plate (53) being provided with at least two horizontally extending extension rods (531), the extension rods (531) passing through guide holes (511) provided on the push cylinder (51) and being connected to a limit baffle (532), the limit baffle (532) being located on a side of the push cylinder (51) facing the tire bead wire, the width of the limit baffle (532) being greater than the width of the push cylinder (51), and a horizontally extending rack (533) being provided on a side of the limit baffle (532) facing the gear (22), the rack (533) being meshed and connected with the gear (22) when it moves to contact the gear (22); A fourth spring (534) is sleeved on the extension rod (531), and the fourth spring (534) elastically connects the push plate (53) and the push cylinder (51). The elastic force applied by the fourth spring (534) causes the push cylinder (51) to move away from the push plate (53).

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