A wire brush production line

Abstract

The present invention discloses a brush wire production line. After the brush wire is unreeled from a wire coil, it is formed by a forming machine. The production line successively includes an unreeling structure, a preliminary alignment mechanism, a precise alignment structure, a traction mechanism, a forming machine, and a blanking mechanism. The unreeling structure includes an unreeling roller. The preliminary alignment mechanism includes at least three preliminary alignment wheels. The precise alignment structure includes at least two pairs of precise alignment wheel sets. The traction mechanism includes a driving traction wheel and a driven traction wheel. The driving traction wheel is driven to rotate by a motor. The forming machine includes a feed inlet and a discharge outlet. The blanking mechanism includes a conveyor belt. A receiving box is provided at the end of the conveyor belt. The head end of the conveyor belt is located directly below the discharge outlet. In the brush wire production line of the present invention, two straightening steps of preliminary alignment and precise alignment are used for wire straightening, and the straightening effect is good. During the wire straightening process, coolant is respectively used for cooling to avoid excessive wire temperature, reduce the residual internal stress, avoid brush wire deformation, and improve the product yield rate.

Description

Technical Field

[0001] The present invention belongs to the technical field of brush wire production, and particularly relates to a brush wire production line. Background Art

[0002] The cap-shaped conductive slip ring is a product demanded in the process of modern industrial development. It belongs to the category of electrical contact sliding connection applications and is a precision device for realizing the transmission of image, data signals, and power between two relatively rotating mechanisms. It is particularly suitable for applications with unrestricted continuous rotation and the need to transmit power or data from a fixed position to a rotating position, and is widely used in equipment such as security, drones, robots, satellites, etc.

[0003] Inside the cap-shaped conductive slip ring, there is a conductive friction pair composed of an electrical contact material copper ring and brush wires. The copper ring and the brush wires are relatively moving in the working state. The brush wires are generally made of elastic materials such as beryllium copper wire, silver alloy wire, gold alloy wire, etc. through straightening and forming processes. During the straightening process, the wire is prone to heat generation due to deformation and friction, which easily leads to the existence of thermal stress inside the wire. At the same time, the wire is under the traction of the traction force, and the wire is also prone to being stretched and the diameter becoming smaller at high temperatures. The brush wires with stress will deform after cooling to form defective products, and the brush wires with reduced stretched diameter will also become defective products. Summary of the Invention

[0004] To solve the above technical problems, the technical solution adopted by the present invention is: a brush wire production line. After the brush wire is unreeled from the wire coil, it is formed by a forming machine. The production line sequentially includes an unreeling structure, a preliminary straightening mechanism, a fine straightening structure, a traction mechanism, a forming machine, and a blanking mechanism. The unreeling structure includes an unreeling roller. The preliminary straightening mechanism includes at least three preliminary straightening wheels. The fine straightening structure includes at least two pairs of fine straightening wheel groups. The traction mechanism includes a driving traction wheel and a driven traction wheel. The circumferential surface of the driving traction wheel closely abuts the circumferential surface of the driven traction wheel. The driving traction wheel is driven to rotate by a motor. The forming machine includes a feed inlet and a discharge outlet. The blanking mechanism includes a conveyor belt, and a receiving box is provided at the end of the conveyor belt. The head end of the conveyor belt is located directly below the discharge outlet.

[0005] As a preference of the above technical solution, a V-shaped groove is provided on the circumferential surface of the preliminary straightening wheel. The preliminary straightening wheel is installed in a preliminary straightening box through a vertically arranged support shaft. The upper end of the support shaft is connected to the middle of the preliminary straightening wheel through a bearing. The lower end of the support shaft is fixed in the preliminary straightening box. Wire passing openings are respectively provided at both ends of the preliminary straightening box. The preliminary straightening box is located in an outer box. The preliminary straightening box is filled with a coolant. The V-shaped groove is below the liquid level of the coolant. The coolant in the preliminary straightening box respectively flows out of the wire passing openings into the outer box, and the coolant in the outer box is returned to the preliminary straightening box through a micro pump.

[0006] As a preference of the above technical solution, the number of the preliminary straightening wheels is four, and the four preliminary straightening wheels are staggered.

[0007] Preferably, as the above technical solution, all the precision straightening wheel sets are arranged in a straight line, and the straight line formed by the precision straightening wheel sets faces the feeding port directly. The precision straightening wheel set includes two precision straightening wheels. An annular wire groove is provided on the circumferential surface of the precision straightening wheel. The precision straightening wheel is installed in the precision straightening box through a fixed shaft. The upper end of the fixed shaft is connected to the middle part of the precision straightening wheel through a bearing, and the lower end of the fixed shaft is fixed in the precision straightening box. A channel is provided inside the fixed shaft, and a liquid outlet is provided at the upper end of the fixed shaft. The liquid outlet communicates with the channel. A coolant is filled in the precision straightening box, and the coolant in the precision straightening box is pumped into the channel by a small pump.

[0008] Preferably, as the above technical solution, the small pump is connected with a delivery pipe, and a number of branch pipes are connected to the delivery pipe. The branch pipes communicate with the channel respectively.

[0009] Preferably, as the above technical solution, the number of the precision straightening wheel sets is five pairs.

[0010] Preferably, as the above technical solution, rubber sleeves are respectively provided on the driving traction wheel and the driven traction wheel, and the rubber sleeves are detachably and tightly sleeved on the driving traction wheel or the driven traction wheel.

[0011] Preferably, as the above technical solution, a defective product removing mechanism is provided on the conveyor belt.

[0012] Preferably, as the above technical solution, the defective product removing mechanism sequentially includes a CDD visual inspection mechanism and a manipulator, and a defective product box is provided beside the manipulator.

[0013] The beneficial effects of the present invention are as follows: For the wire brush production line of the present invention, wire straightening is carried out by using two straightening steps of preliminary straightening and precision straightening, and the straightening effect is good. During the wire straightening process, cooling is respectively carried out by using a coolant to avoid too high temperature of the wire, reduce the residual internal stress, avoid the deformation of the wire brush, and improve the yield rate of the product. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present invention;

[0015] Figure 2 is a schematic structural view of the present invention from another angle;

[0016] Figure 3 is a schematic structural view of the preliminary straightening structure;

[0017] Figure 4 is a schematic structural view of the precision straightening structure. Detailed Embodiments

[0018] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] As Figures 1-4 shown, a brush wire production line, the brush wire 1 is formed by the wire reel 2 after unwinding and passes through the forming machine 3. The production line successively includes an unwinding structure, a preliminary alignment mechanism, a fine alignment structure, a traction mechanism, the forming machine 3 and a blanking mechanism. The unwinding structure includes an unwinding roller 4. The preliminary alignment mechanism includes at least three preliminary alignment wheels 5. The fine alignment structure includes at least two pairs of fine alignment wheel sets. The traction mechanism includes a driving traction wheel 6 and a driven traction wheel 7. The circumferential surface of the driving traction wheel 6 is closely adjacent to the circumferential surface of the driven traction wheel 7. The driving traction wheel 6 is driven to rotate by a motor 8. The forming machine 3 includes a feed inlet 9 and a discharge outlet 10. The blanking mechanism includes a conveyor belt 11. A receiving box 12 is provided at the end of the conveyor belt 11. The head end of the conveyor belt 11 is located directly below the discharge outlet 10.

[0022] Further, a V-shaped groove 13 is provided on the circumferential surface of the preliminary alignment wheel 5. The preliminary alignment wheel 5 is installed in the preliminary alignment box 15 through a vertically arranged support shaft 14. The upper end of the support shaft 14 is connected to the middle of the preliminary alignment wheel 5 through a bearing, and the lower end of the support shaft 14 is fixed in the preliminary alignment box 15. Wire passing ports 16 are respectively provided at both ends of the preliminary alignment box 15. The preliminary alignment box 15 is located in the outer box 17. The preliminary alignment box 15 is filled with a coolant. The V-shaped groove 13 is below the liquid level of the coolant. The coolant in the preliminary alignment box 15 flows into the outer box 17 through the wire passing ports 16 respectively, and the coolant in the outer box 17 is returned to the preliminary alignment box 15 through a micro pump. During the preliminary alignment deformation process, the wire is immersed in the coolant, and the heat generated by the deformation is quickly conducted away, avoiding deformation of the wire due to excessive local stress after being formed into fine brush wires. The coolant also plays a lubricating role, reducing the friction between the wire and the preliminary alignment. To prevent foreign objects from falling into the coolant, a box cover 18 can be placed on the preliminary alignment box. The periphery of the box cover 18 has a cover edge 19, and the outer box 17 is located within the cover edge 19. At the same time, a wire passing groove 20 for the wire to pass through is left on the cover edge 19. The coolant returned from the outer box 17 to the preliminary alignment box 15 through the micro pump and the coolant flowing from the preliminary alignment box 15 into the outer box 17 through the wire passing ports 16 form a dynamic balance. The wire is straightened in the same horizontal plane.

[0023] Further, the number of the preliminary alignment wheels 5 is four, and the four preliminary alignment wheels 5 are staggered.

[0024] Further, all the fine alignment wheel sets are arranged in a straight line, and the straight line formed by the fine alignment wheel sets is directly opposite to the feeding port 9. The fine alignment wheel set includes two fine alignment wheels 21. An annular wire groove 22 is provided on the circumferential surface of the fine alignment wheel 21. The fine alignment wheel 21 is installed in the fine alignment box 24 through a fixed shaft 23. The upper end of the fixed shaft 23 is connected to the middle of the fine alignment wheel 21 through a bearing, and the lower end of the fixed shaft 23 is fixed in the fine alignment box 24. A channel 25 is provided inside the fixed shaft 23. An outlet 26 is provided at the upper end of the fixed shaft 23, and the outlet 26 communicates with the channel 25. The fine alignment box 24 is filled with a coolant. The coolant in the fine alignment box 24 is pumped into the channel 25 through a small pump. The coolant emerges from the outlet 26 and flows down along the circumferential surface of the fine alignment wheel 21 due to gravity and returns to the fine alignment box 24. The part of the wire in contact with the fine alignment wheel is immersed in the falling coolant, and the flowing coolant quickly takes away the heat generated by the deformation of the wire. Similarly, a lid 30 can also be provided on the fine alignment box 24, and a through hole for the wire to pass through is left on the lid 30.

[0025] Further, the small pump is connected with a delivery pipe, and a number of branch pipes are connected to the delivery pipe, and the branch pipes respectively communicate with the channel 25.

[0026] Further, the number of the fine alignment wheel sets is five pairs.

[0027] Further, rubber sleeves are respectively provided on the driving traction wheel 6 and the driven traction wheel 7, and the rubber sleeves are detachably and tightly sleeved on the driving traction wheel 6 or the driven traction wheel 7.

[0028] Further, a defective product removing mechanism is provided on the conveyor belt 11.

[0029] Further, the defective product removing mechanism sequentially includes a CDD visual inspection mechanism 27 and a manipulator 28, and a defective product box 29 is provided beside the manipulator 28. The CDD visual inspection mechanism 27 in the prior art is used to visually identify defective products on the conveyor belt 11, and the defective products are grabbed by the manipulator 28 and placed into the defective product box 29.

[0030] It is worth mentioning that technical features such as the motor 8, the micro pump, the small pump, the CDD visual inspection mechanism 27 and the manipulator 28 involved in this invention patent application should be regarded as the prior art. The specific structures, working principles, possible control methods and spatial arrangement methods of these technical features can be selected conventionally in this field, and should not be regarded as the inventive points of this invention patent. This invention patent will not be further specifically elaborated.

[0031] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in this technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A wire brush production line, where the wire brush is formed by a forming machine after being unreeled from a wire coil. It is characterized in that the production line successively includes an unreeling structure, a preliminary alignment mechanism, a fine alignment structure, a traction mechanism, a forming machine and a blanking mechanism. The unreeling structure includes an unreeling roller. The preliminary alignment mechanism includes four preliminary alignment wheels which are staggeredly distributed. The fine alignment structure includes five pairs of fine alignment wheel sets. The traction mechanism includes a driving traction wheel and a driven traction wheel. The circumferential surface of the driving traction wheel closely abuts against the circumferential surface of the driven traction wheel. The driving traction wheel is driven to rotate by a motor. The forming machine includes a feed inlet and a discharge outlet. The blanking mechanism includes a conveyor belt. A receiving box is arranged at the end of the conveyor belt. The head end of the conveyor belt is located directly below the discharge outlet. A V-shaped groove is arranged on the circumferential surface of the preliminary alignment wheel. The preliminary alignment wheel is installed in a preliminary alignment box through a vertically arranged support shaft. The upper end of the support shaft is connected to the middle of the preliminary alignment wheel through a bearing. The lower end of the support shaft is fixed in the preliminary alignment box. Wire passing openings are respectively arranged at both ends of the preliminary alignment box. The preliminary alignment box is located in an outer box. A coolant is contained in the preliminary alignment box. The V-shaped groove is below the liquid level of the coolant. The coolant in the preliminary alignment box respectively flows out of the wire passing openings into the outer box. The coolant in the outer box is returned to the preliminary alignment box through a micro pump. All the fine alignment wheel sets are arranged in a straight line. The straight line formed by the fine alignment wheel sets is directly opposite to the feed inlet. Each fine alignment wheel set includes two fine alignment wheels. An annular wire groove is arranged on the circumferential surface of the fine alignment wheel. The fine alignment wheel is installed in a fine alignment box through a fixed shaft. The upper end of the fixed shaft is connected to the middle of the fine alignment wheel through a bearing. The lower end of the fixed shaft is fixed in the fine alignment box. A channel is arranged in the fixed shaft. A liquid outlet is arranged at the upper end of the fixed shaft. The liquid outlet communicates with the channel. A coolant is contained in the fine alignment box. The coolant in the fine alignment box is pumped into the channel through a small pump. The small pump is connected with a delivery pipe. A number of branch pipes are connected to the delivery pipe. The branch pipes respectively communicate with the channel. Rubber sleeves are respectively arranged on the driving traction wheel and the driven traction wheel. The rubber sleeves are detachably and tightly sleeved on the driving traction wheel or the driven traction wheel. A defective product removing mechanism is arranged on the conveyor belt.

2. The wire brush production line according to claim 1, It is characterized in that the defective product removing mechanism successively includes a CDD visual inspection mechanism and a manipulator. A defective product box is arranged beside the manipulator.

Images