CN2204220Y

CN2204220Y - High-speed wire polishing machine for wire-drawing die

Info

Publication number: CN2204220Y
Application number: CN 94243528
Authority: CN
Inventors: 操海虹; 朱立新; 钱伟俊; 孙越
Original assignee: BEIJING ELECTRICAL PROCESSING INST
Current assignee: BEIJING ELECTRICAL PROCESSING INST
Priority date: 1994-10-31
Filing date: 1994-10-31
Publication date: 1995-08-02
Anticipated expiration: 2004-10-31

Abstract

The utility model relates to a high-speed wire polishing machine for wire-drawing die, which carries out polishing processing towards a wire-drawing die. The utility model is characterized in that a wire-drawing die placing and positioning cavity is a conical cavity which is composed of a rotary end cap and a rotary body. The improved wire-drawing die positioning cavity has universality, and a motor excitation control circuit is provided with an excitation adjustable switch. One start-up protection circuit is arranged between a timing control circuit and a vibration and rotation speed control circuit. The high-speed wire polishing machine for wire-drawing die, which is modified in the way, reciprocate to vibrate for more than 300 times per minute, and the rotational velocity can reach more than 2000 times per minute. The utility model can process a wire connection die between phi 4.5-0.04 mm, characterized in simple renovation and safety.

Description

High-speed wire polishing machine for wire-drawing die

The utility model relates to a kind of processing is polished by electric wire, cable industry, wirework industry and wire-drawing die manufacturing firm to wire-drawing die wire-drawing die high-speed line polishing machine that is used for.

The wire wire-drawing die line polisher that this institute produces at present is by rolling clamp, upper and lower fixedly guide frame, and drive, vibrating motor, electric rotating machine constitutes mechanical part.By vibration velocity control, rotary speed control, the excitatory control of motor regularly/is manually controlled four most of circuits and is constituted.This machine exists two problems: the one, and rolling clamp does not possess versatility, that is because the mould placement positioning chamber on rolling clamp top is the cylindrical cavity on plane at the bottom of being one, the cavity internal diameter must be consistent with wire-drawing die external diameter to be processed, mould is not shifted in high speed polishing processing, thereby the mould of polishing processing different size must be changed the rolling clamp of corresponding specification, operation was both inconvenient, also very uneconomical like this.The problem of another existence is that the range of work of wire-drawing die is narrow, can only be confined between the φ 3.5-0.1mm, its reason is that the gearratio of this machine driving wheel is less, when mechanical low cruise, because moment is less, makes mechanical movement not steady, unable and shake, thereby the wire-drawing die band more than the processing φ 3.5mm is motionless, and the wire-drawing die instrument silk below the processing φ 0.1mm is easily broken.

Also there is a problem in this product at present; promptly under " regularly " duty; after shutting down, machine is the shutdown that is under the high-speed case in case the time of putting is given in arrival, by the proper operation rule; operating personnel should be with the vibration and the rotary speed set to zero of machine; just can carry out the next round start-up operation, often be prone to the maloperation of " high-speed starting ", can form very big overcurrent in the moment that starts and impact; very easily damage the components and parts in the circuit, cause equipment fault.

The purpose of this utility model is exactly with the mould placement positioning cavity configuration that changes rolling clamp, makes the one chamber can place the mould of various different sizes, thereby reaches the universal performance of rolling clamp.Low-speed performance with the vibration ratio changing machinery that adds large drive wheel makes it steady when low cruise, and is strong, do not tremble and therefore widens the scope of processing wire-drawing die.Increase by one simultaneously and start the protection control circuit, when operator's maloperation, this startup protection control circuit will not start, and reduces breakdown rate with this.

The rolling clamp mould placement positioning chamber of the utility model design is by being conical inclined surface in the top, the outside threaded cylindrical rotating body and interior be the plane, inboard threaded rotating end cap is spun on that the cavity that forms together constitutes, the wire-drawing die that any specification need be processed lies in a horizontal plane on the conical inclined surface, again rotating end cap is screwed on, at this moment the inclined-plane of the inner plane of rotating end cap and rotary body is fixed on wire-drawing die in the cavity by means of both sides' screw thread.

The utility model is recently to change mechanical low cruise performance with adding large drive wheel vibration transmission, and the vibration gearratio that its scheme characteristics are this machinery has increased by one times than former mechanical oscillation gearratio.Because the increase of vibration gearratio makes the moment of this machine when low cruise obtain increase, thereby makes machinery steady when low cruise, strong, do not tremble.But, directly have influence on the working (machining) efficiency of equipment because the increase of gearratio makes the high speed speed of this machine but descend to some extent.In order to improve the vibration velocity of this machine, this programme adopts is the excitation voltage that reduces motor rotating speed of motor when improving the mechanical high-speed operation.Its scheme characteristics are to increase a K switch 2 in the original motor excitation control circuit, this switch changes the secondary windings coil L1 of transformer T1 in the circuit by K switch 2 connections into by original directly being connected with D9, D10 rectifier bridge, when the 1/2 voltage output end UNICOM of K2 switch and Secondary winding of transformer coil L1, it is about 1/2 that excitation voltage reduces, and motor speed is along with the reduction of excitation voltage is improved for this reason.

Start holding circuit once more after shutting down when this machinery is provided with a timing working, be characterized in the K3 switch earth terminal in the former timing control circuit is disconnected, and connect with the normally closed switch J22 of relay J 2 and to form the start-up control loop.Simultaneously potentiometer W2, W3 in former vibration control circuit and the rotation control circuit are replaced with the potentiometer that has switch, relay J 2 is communicated with the switch of two potentiometers, and another normally closed switch J21 of relay J 2 is connected with indicator lamp.Have only when W2 and W3 get back to zero-bit simultaneously, the switch of W2 and W3 just can disconnect simultaneously, and two normally closed switch J21 and J22 could be released simultaneously, and the luminous expression of indicator lamp at this moment can be carried out next round and start, start button K3 switch loop also is switched on simultaneously, starts effectively.Otherwise as long as any one switch of W2 and W3 does not disconnect, relay J 2 is just worked always, and J21 and J22 are disconnected, and indicator lamp and start-up circuit are all obstructed, and it is invalid to start.

Expand to φ 4.5-0.04mm through the polishing of the wire-drawing die high-speed line polishing machine after the improvement of the top three aspects range of work from original φ 3.5-0.1mm.Motor excitation voltage switch is beaten when " at a high speed " position, and double vibrations speed can reach more than 300 times/minute, and rotary speed can reach more than 2000 times/minute, has higher working (machining) efficiency.This Machine Design is reasonable, and is simple in structure, and circuit is simple, and safety needn't be done great change to former design, just can obtain above-mentioned effect.

Below with reference to the accompanying drawings, to wire-drawing die high-speed line polishing machine structure described in the utility model, track remodelling carries out detailed narration.

Fig. 1 wire-drawing die high-speed line polishing machine rolling clamp structural representation.

Fig. 2 wire-drawing die high-speed line polishing machine general assembly schematic diagram.

Fig. 3 wire-drawing die high-speed line polishing machine line map.

Wherein: 1. the fixing fixing guide frame of guide frame 10. rolling clamps 11. times on conical cavity 2. large diameter cylinders 3. rotating end caps 4. small diameter cylinders bodies 5. bearings 6. bearing bracket stands 7. cylindrical cavities 8. belt pulleys 9.

Rolling clamp (10) is to be made of rotating end cap (3) and rotary body two parts, and rotary body is the overall structure that a large diameter cylinder (2) and a small diameter cylinders body (4) constitute.Large diameter cylinder is positioned at the top of rotary body, and the center is one and goes up big, following little conical cavity (1) that the outer sidecar of cylinder has screw thread.The small diameter cylinders body is positioned at the bottom of rotary body, the center is a cylindrical cavity (7), top overcoat one bearing (5) of small diameter cylinders body, be fixed in fixedly guide frame (9) and following fixedly between the guide frame (11) by bearing bracket stand (6), its belt pulley (8) is positioned at the below of bearing, by belt rotary body is connected with drive.Rotating end cap is the lid of a round hat, and inner bottom surface is the plane platform of a projection, and interior sidecar has screw thread.

Change the vibration gearratio of drive into 8:1.

Adorn a K switch 2 on panel, the cutter of K2 is connected with rectifier bridge D9, D10, and throwing respectively with the full voltage output 1 of the secondary windings coil L1 of transformer T1 and 1/2 voltage output end 2 of L1 of K2 connects.

W2 in former circuit A1-A2 and the B1-B2 section and W3 potentiometer are replaced with the potentiometer that has K switch 4 and K5, K4 is connected with relay J 2 with K5.Normally closed switch J22 with relay J 2 connects with the disconnection of the starting switch K3 earth terminal in the primary circuit, and another normally closed switch J21 of J2 and indicator lamp D14 connect.

Claims

1, a kind of by rolling clamp, upper and lower fixedly guide frame, drive, vibrating motor, electric rotating machine constitutes mechanical part, by vibration velocity control, and rotary speed control, the excitatory control of motor, regularly/manually control circuit is formed the wire-drawing die high-speed line polishing machine of control section, it is characterized in that:

(1) the wire-drawing die placement positioning chamber of its rolling clamp be one by the rotation end cap with interiorly constitute for the rotary body of conical cavity is spun on the cavity that forms together,

(2) the secondary windings coil L1 place of the transformer T1 in the excitatory control circuit of motor is provided with a K switch 2, and the cutter of K2 and rectifier bridge D9, D10 connect, and full voltage output and 1/2 voltage output end thrown respectively with L1 link,

(3) potentiometer W2, the W3 in vibration velocity control circuit A1-A2 and the rotary speed control circuit B1-B2 section is set to have the potentiometer of K switch 4, K5, K switch 3, K4 link to each other with relay J 2, the normally closed switch J21 of J2 is connected with indicator lamp D14, and another normally closed switch J22 seals in the earth terminal of starting switch K3.