TWI429575B - A wire roller mechanism - Google Patents

Description

Wire feeding roller mechanism

The present invention relates to a wire feed roller mechanism. Such as: terminal machine, welding wire conveyor, conveyor belt machine, etc. In particular, it relates to a wire feeding mechanism suitable for high speed and precision transmission, and the clamping force of the roller when conveying the wire can be set by the pressure of the pneumatic cylinder to elastically change according to the work demand.

At present, the existing wire feeding roller mechanism generally comprises: a driving device, which drives two rollers (active rollers) to transport wires, and two unpowered rollers (idler wheels, driven rollers) to passively support the wires. In such a mechanism, when the high-speed motion is different, the power inertia of the active roller and the driven roller is different, the wire feeding is unstable, and the work required for accurate and high-speed wire feeding cannot be smoothly achieved.

Therefore, there is a need in the market for a wire feeding mechanism capable of high speed, stable, and accurate wire feeding.

The invention relates to a wire feeding roller mechanism, comprising: a machine base, a driving device is arranged under the machine base, a wire feeding roller group is arranged on the machine table, and the front and rear four rollers are synchronously conveyed by the toothed belt wheel group. . The invention can keep silent, accurate and stable wire feeding in the case of high-speed wire feeding, and can process extremely thin wires.

Another feature of the wire feeding roller mechanism of the present invention is that it further comprises a cylinder sliding table disposed in front of the wire feeding roller set for escorting the wire at the front end. The cylinder slide can be designed as a single layer, double layer or multiple layers.

The wire feeding roller mechanism of the present invention is characterized in that: a vacuum wire feeding device is arranged on the cylinder sliding table, and the wire fed by the wire feeding roller group can be continuously conveyed by the vacuum wire feeding device to achieve the "feeding roller" The Group and the "Vacuum Feeding Device" synchronize the precise and stable conveying of the wire, especially for the transmission of extremely thin wires. Under the vacuum suction, the wire can be guided, even at high speed. In the meantime, the wire can still maintain the collimated transport, which further shows the excellent features of the present invention.

Another feature of the wire feeding roller mechanism of the present invention is that a rack is arranged on the symmetrical transmission line of the wire feeding roller set on the base to adjust the spacing between the wire roller groups to facilitate the transportation of various wire diameters. Wire.

Another feature of the wire feeding roller mechanism of the present invention is that it includes a cylinder that provides cylinder air pressure to adjust the toothed belt tension and the roller clamping force, and indeed achieves the purpose of accurately synchronizing the transmission wire.

In the wire feeding roller mechanism of the present invention, the driving device preferably uses a computer program to control the servo motor to precisely control the operation of the wire feeding roller mechanism.

Another feature of the wire feeding roller mechanism of the present invention is that at least one or more idler wheels are disposed under the machine base, and the double-sided belt is used to drive and change the direction to balance the force between the wheel and the wheel. Achieve stable output and accurate transmission. This double-sided belt is preferably a toothed double-sided belt, which is more stable and accurate.

Another feature of the wire feeding roller mechanism of the present invention is that the toothed belt system can be disposed on the roller of the wire feeding roller group, and the wire material is conveyed by the belt to achieve the function of conveying the fine wire material under high speed operation.

The wire feeding roller mechanism of the invention has balanced power transmission and can reach 500ms/cycle under high speed operation, which is better than the current conventionally only 750ms/cycle, and the invention can process extremely thin wires, for example: wire diameter# 36, better than the current best thin wire diameter is only #34. The wire feeding roller mechanism of the invention has the functional characteristics of transmitting extremely thin wires under high-speed operation, meets the needs of the industry, and has industrial applicability and outstanding advancement.

The embodiments of the present invention are described in conjunction with the drawings, and are not intended to limit the invention.

An embodiment of the wire feeding roller mechanism of the present invention, as shown in FIG. 1 , comprises: a machine base, a wire feeding roller set is disposed on the machine base for conveying the wire, and the front of the wire feeding roller group on the machine base After the roller 11 is driven, the rear roller 12 of the wire feeding roller group is driven by the toothed belt 13 to utilize The toothed belt pulley group synchronizes, and the front and rear four rollers 11 and 12 convey the wire to achieve the purpose of accurate wire feeding.

Further, as shown in Fig. 2, a drive unit 21 is provided under the base to drive the toothed belt set, and the driven wheel 24 and the idler 23 are driven by the double-sided toothed belt 22. When the driving device 21 drives the driven wheel 24 by the belt 22, since the driven wheel 24 and the front roller 11 of the belt feeding roller set on the base are designed to be coaxial, when the driving device is driven, the upper surface of the base is sent. The front roller 11 of the line roller set is also driven. The idler wheel set 23 is used to adjust the direction of rotation of the roller and to adjust the relative force position and belt tightness of each pulley.

Further, as shown in Fig. 1, the cylinder slide table 15 is disposed in front of the wire feed roller group for escorting the wire at the front end. The vacuum wire feeding device 16 is disposed on the cylinder slide table 15 for attracting and guiding the wire feed. In general (conventional), when the wire feeding roller mechanism feeds the wire, only the vacuum suction assist is used to make the wire feeding smooth, but this method is only suitable for the low speed or thick wire feeding mechanism. If the wire feeding roller mechanism needs to be sent at a high speed and the wire is extremely thin, it is easy to cause the wire to be huddled at the working end of the other end due to fine microwave movement, causing downtime. In the present invention, the vacuum wire feeding device 16 is disposed on the cylinder slide table 15, and when the roller is fed, the wire is synchronously operated, and the escort pipe escort wire at the front end of the vacuum wire feeding device 16 can be closer to the working end of the other end. The working mode is that the vacuum wire feeding device 16 is disposed on the cylinder sliding table 15. When the roller is fed, the cylinder sliding table 15 moves synchronously (moving to the right as shown in FIG. 1), and the wire is smoothly sent in synchronization with the roller. To the other end of the work, because the wire exit location is close to the other end of the work, the work of the work can be very stable. When the cylinder slide table 15 is returned (moving to the left as shown in Fig. 1), the roller does not move, the wire is clamped, and the vacuum is sucked to help the wire smoothly pass through the vacuum wire feeding device 16, so that the wire remains straight and does not crowd In a group, the "feeding roller set" and the "vacuum wire feeding device" are synchronized to accurately and stably transport the wire, especially for the transmission of extremely thin wires, and under vacuum suction, the purpose of feeding the wire can be guided.

In addition, in the vertical direction of the transmission roller group transmission center line, a rack 14 is provided for symmetrically adjusting the roller pitch of the belt feeding roller group according to the transmission center line, so as to be suitable for conveying various wire diameters. In addition, there is a pneumatic cylinder setting (not shown in the schematic) that provides air pressure to adjust the toothed belt tension and the roller clamping force.

In summary, the features of the components of the wire feeding roller mechanism of the present invention can be improved at high speed. The performance of the wire feeding mechanism for conveying thin wires exceeds the performance limit of the current wire feeding mechanism.

11‧‧‧ Front roller of the wire roller set

12‧‧‧ Rear roller of the wire roller set

13‧‧‧Toothed belt

14‧‧‧Adjust the rack of the roller spacing of the wire reel

15‧‧‧Cylinder slide

16‧‧‧Vacuum wire feeder

21‧‧‧Drives (servo motors, motors, other devices that can be actively rotated)

22‧‧‧Double-toothed belt

23‧‧‧ Idler

24‧‧‧ driven wheel

Fig. 1 is a schematic view showing the arrangement of upper parts of the base of the wire feeding roller mechanism of the present invention

Fig. 2 is a schematic view showing the arrangement of the components below the base of the wire feeding roller mechanism of the present invention

11‧‧‧Front roller of the belt conveyor

12‧‧‧The rear roller of the belt conveyor

13‧‧‧Toothed belt

14‧‧‧Adjust the rack of the roller spacing of the wire reel

15‧‧‧Cylinder slide

16‧‧‧Vacuum wire feeder

Claims (10)

The utility model relates to a wire feeding roller mechanism, comprising: a machine base, a driving device is arranged under the machine base, a wire feeding roller group is arranged on the machine base for conveying the wire material, and the toothed belt pulley group is used to synchronously drive the roller group to convey the wire material. The cylinder slide is disposed in front of the wire feed roller set, and the vacuum wire feeding device is disposed on the cylinder slide table. The wire feeding roller mechanism according to claim 1, wherein when the roller group conveys the wire, the cylinder sliding table moves synchronously, and the wire is smoothly sent to the working end of the other end in synchronization with the roller group, when the cylinder sliding table returns When the roller set does not move, the wire is clamped, and the vacuum is sucked to help the wire smoothly pass through the vacuum wire feeding device, so that the wire is kept straight. The wire feeding roller mechanism according to claim 1, wherein the cylinder sliding table can be designed as a single layer, a double layer or a plurality of layers, and wherein the "feeding roller group" and the "vacuum wire feeding device" are synchronously and accurately The wire is stably conveyed, and under the vacuum suction, the wire is guided. The wire feeding roller mechanism of claim 1, wherein a rack is disposed in a vertical direction of the transmission center line of the wire feeding roller set on the base for adjusting the wire feeding roller symmetrically according to the transmission center line. The spacing between the groups is convenient for conveying wires of various wire diameters. The wire feeding roller mechanism of claim 1, further comprising a cylinder for providing air pressure of the cylinder to adjust the tension of the toothed belt and the clamping force of the roller, and indeed achieve the purpose of accurately synchronizing the transmission wire. The wire feeding roller mechanism according to claim 1, wherein the driving device is selected from the group consisting of a computer program controlling a servo motor or a motor to precisely control the operation of the wire feeding roller mechanism. The wire feeding roller mechanism of claim 1, wherein at least one or more idler wheels are disposed under the machine base, and the double-sided belt is used to drive and change the direction to make the wheel and the wheel Balanced force can achieve the purpose of stable output and accurate transmission. The wire feeding roller mechanism of claim 7, wherein the double-sided belt is a toothed double-sided belt. The wire feeding roller mechanism of claim 1, wherein the toothed belt can be disposed on the roller of the wire feeding roller group, and the wire is conveyed by the belt to achieve the function of conveying the fine wire under high speed operation. . The wire feeding roller mechanism according to any one of claims 1 to 9, which is used for a wire feeding roller mechanism of a terminal machine, a welding wire conveyor, a conveyor belt machine, and the like.