CN108480409B

CN108480409B - Anti-overload cold drawing machine

Info

Publication number: CN108480409B
Application number: CN201810234758.XA
Authority: CN
Inventors: 林晓宏
Original assignee: Marinetec Development (zhongshan) Ltd
Current assignee: Marinetec Development (zhongshan) Ltd
Priority date: 2018-03-21
Filing date: 2018-03-21
Publication date: 2019-12-24
Anticipated expiration: 2038-03-21
Also published as: CN108480409A

Abstract

The invention discloses an overload-proof cold drawing machine which comprises a cold drawing machine body, wherein a control box is arranged on one side of the cold drawing machine body, a control console is arranged on one side of the control box, which is far away from the cold drawing machine body, an opening is formed in one side of the control box, a fixed seat is fixedly installed on the inner wall of one side of the control box, which is far away from the opening, a first groove is formed in one side of the fixed seat, which is close to the opening of the control box, a mounting seat is installed in the first groove in a sliding mode, one side of the mounting seat extends out of the first groove, an overload protector is fixedly installed on the mounting seat, second grooves are symmetrically formed in two sides of the mounting seat, clamping rods are installed in the second grooves in a sliding mode, springs are welded on the inner wall. The overload protector is arranged, so that the normal use of the cold drawing machine body can be ensured, the later maintenance cost is reduced, meanwhile, the overload protector can be conveniently and rapidly disassembled and assembled, and the overload protector is convenient to overhaul and maintain.

Description

Anti-overload cold drawing machine

Technical Field

The invention relates to the technical field of cold drawing machines, in particular to an overload prevention cold drawing machine.

Background

The cold drawing machine can be roughly divided into three separated machines and a frame machine according to the structure mode of the machine body. According to the transmission mode, the machine can be divided into various types such as chain type, hydraulic transmission type, rack type, screw rod type and the like. With the beginning of research and application of cold-drawn steel tube technology in the 90 s of the 20 th century, the cold-drawn steel tube technology has been widely applied to the manufacture of single hydraulic cylinders and oil cylinders of engineering machinery, and cold-drawn machines are used as main processing equipment of cold-drawn steel tubes, are used for drawing black and non-ferrous metal bar materials at normal temperature and carrying out secondary processing on pierced billets after hot rolling and extrusion, and are main processing equipment for producing small-caliber, precise, thin-walled and high-mechanical-performance tubes.

A steel pipe cold drawing machine utility model with patent number 201410400406.9 discloses a steel pipe cold drawing machine, which comprises a base and a frame, wherein a drawing die holder is arranged on the frame, a plurality of mounting holes are arranged on the drawing die holder, a die is arranged in the mounting holes, and the drawing die holder is arranged on the frame; and two ends of the drawing die seat are respectively provided with a steel pipe positioning seat and a drawing die clamp. According to the steel pipe cold-drawing machine, the plurality of dies are arranged on the drawing die holder, so that a plurality of steel pipes can be drawn at one time, the production efficiency is greatly improved, meanwhile, the steel pipes can be well supported by the steel pipe positioning seats, the steel pipes can be quickly installed and positioned when the steel pipes are produced, the time is saved, the efficiency is improved, the steel pipes to be drawn can be effectively supported, the stability of drawing and feeding is improved, and the production safety performance is improved.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an overload-proof cold-drawing machine.

In order to achieve the purpose, the invention adopts the following technical scheme:

an overload-proof cold drawing machine comprises a cold drawing machine body, wherein a control box is arranged on one side of the cold drawing machine body, a control console is arranged on one side, away from the cold drawing machine body, of the control box, an opening is formed in one side of the control box, a fixed seat is fixedly mounted on the inner wall of one side, away from the opening, of the control box, a first groove is formed in one side, close to the opening of the control box, of the fixed seat, a mounting seat is slidably mounted in the first groove, one side of the mounting seat extends out of the first groove, and an overload protector is fixedly mounted on one side of;

the second recess has been seted up to the bilateral symmetry of mount pad, slidable mounting has the kelly in the second recess, the second recess is kept away from on the inner wall of second recess open-ended one side and is welded the spring, welded fastening between spring and the kelly, one side is seted up to the symmetry on the both sides inner wall of first recess and is the open-ended wedge groove, the through-hole has all been seted up to one side inner wall that two wedge grooves kept away from each other, two wedge grooves are run through respectively to the one end that two kellies kept away from each other, and slidable mounting is in two through-holes respectively, slidable mounting has the push rod in the through-hole, the one end that two push.

Preferably, the overload protector comprises a diode D5, the anode of the diode D5 is connected with one end of the relay K, one end of a capacitor C7, the anode of a diode D3 and the anode of a diode D4, the cathode of the diode D5 is connected with one end of a resistor R5 and is connected with the other end of the relay K and the other end of a capacitor C7, the cathode of the diode D4 is connected with the anode of a diode D2 and is grounded, the other end of the resistor R5 is connected with the cathode of a diode D1 and is connected with the cathode of a diode D2, the cathode of the diode D9 is connected with one end of a resistor R2, one end of a resistor R3 and one end of a resistor R4 and is connected with the anode of a diode D1, the other end of the resistor R2 is connected with one end of a capacitor C4, the other end of a capacitor C1 is connected with the other end of a knife switch QS1, and the other end of a knife switch QS1 is connected with an input end a knife, the other end of a thermal relay FR1 is connected with a motor M, the other end of a resistor R3 is connected with one end of a capacitor C5, the other end of the capacitor C5 is connected with a capacitor C2, the other end of the capacitor C2 is connected with one end of a knife switch QS2, one end of a thermal relay FR2 and one end of a button SB1, the other end of the knife switch QS2 is connected with an input end B, the other end of the thermal relay FR2 is connected with the motor M, the other end of the resistor R4 is connected with one end of a capacitor C6, the other end of the capacitor C6 is connected with a capacitor C3, the other end of the capacitor C3 is connected with one end of a knife switch QS3, one end of the thermal relay FR3 and one end of a single-position switch J, the other end of the knife switch QS3 is connected with an input end C, the other end of the thermal relay FR3 is connected with the motor M, the other end, the other end of the thermal relay FR4 is connected to one end of a resistor R1, and the other end of the resistor R1 is connected to the other end of the push button SB2 and the other end of the ac contactor KM.

Preferably, the resistances of the resistor R1, the resistor R2, the resistor R3, the resistor R4 and the resistor R5 are 1.5K Ω, 2.4K Ω and 10K Ω in sequence.

Preferably, the capacitance values of the capacitor C1, the capacitor C2, the capacitor C3, the capacitor C4, the capacitor C5, the capacitor C6 and the capacitor C7 are 2.4uF, 2.4uF and 150uF in sequence.

Preferably, the model numbers of the diode D1, the diode D2, the diode D3, the diode D4 and the diode D5 are all 1N 4001.

Preferably, the models of the thermal relay FR1, the thermal relay FR2, the thermal relay FR3 and the thermal relay FR4 are all JRlO-10, and the model of the relay K is JRX-13F.

Preferably, the inner walls of the two sides of the second groove are symmetrically provided with limit grooves, the two sides of the clamping rod are symmetrically and fixedly provided with limit blocks, and the limit blocks are connected with the limit grooves in a sliding mode.

Preferably, the equal fixed mounting in one end that two push rods kept away from each other has the briquetting, and the one end that two kellies kept away from each other all nestedly has the ball, ball and wedge groove looks adaptation.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the cold-drawing machine body, the control box, the control console, the fixed seat, the first groove, the mounting seat, the overload protector, the second groove, the clamping rod, the spring, the wedge-shaped groove, the through hole and the push rod are matched to push the push rod, the push rod pushes the clamping rod to move the clamping rod out of the through hole, at the moment, the overload protector and the mounting seat can be easily disassembled, when the overload protector is mounted, the mounting seat is clamped into the first groove, the clamping rod and the ball are clamped into the wedge-shaped groove, the mounting seat is pressed, the ball rolls on the inner wall of the wedge-shaped groove and pushes the clamping rod, the clamping rod compresses the spring, and when the second groove is aligned with the through hole, the clamping rod resets and fixes the mounting seat under the action of the spring;

the knife switch QS1, the knife switch QS2 and the knife switch QS3 are closed, the button SB2 is pressed, a loop is formed by B, C phases, a relay K, a thermal relay FR4, a normally closed contact of the button SB2 and an alternating current contactor KM coil to be electrified, three main contacts connected in a main circuit in series are closed, a power supply motor M is switched on to rotate, the button SB2 is released to be restored to an open position, the alternating current contactor KM connected with the button SB2 in parallel is closed, the alternating current contactor KM coil is still electrified and self-locked, when the machine needs to be shut down, the movable contact is opened when the button SB1 is pressed, the alternating current contactor KM is disconnected, and the motor M cuts off the power supply to stop rotating.

Drawings

FIG. 1 is a schematic structural view of an overload prevention drawbench according to the present invention;

FIG. 2 is a schematic cross-sectional view of a control box of an overload prevention drawbench according to the present invention;

FIG. 3 is a schematic cross-sectional view of portion A of FIG. 2;

FIG. 4 is a schematic cross-sectional view of portion B of FIG. 3;

fig. 5 is a circuit diagram of an overload protector in an overload prevention cold drawing machine according to the present invention.

In the figure: 1 drawbench body, 2 control boxes, 3 control consoles, 4 fixing bases, 5 first grooves, 6 mounting seats, 7 overload protectors, 8 second grooves, 9 clamping rods, 10 springs, 11 wedge-shaped grooves, 12 through holes and 13 push rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, an overload prevention drawbench comprises a drawbench body 1, a control box 2 is arranged on one side of the drawbench body 1, a control console 3 is arranged on one side of the control box 2 away from the drawbench body 1, an opening is arranged on one side of the control box 2, a fixed seat 4 is fixedly mounted on the inner wall of one side of the control box 2 away from the opening, a first groove 5 is formed in one side of the fixed seat 4 close to the opening of the control box 2, a mounting seat 6 is slidably mounted in the first groove 5, one side of the mounting seat 6 extends out of the first groove 5, and an overload protector 7 is fixedly mounted on the first groove; the second groove 8 is symmetrically formed in two sides of the mounting seat 6, the clamping rod 9 is arranged in the second groove 8 in a sliding mode, the spring 10 is welded on the inner wall, away from the opening of the second groove 8, the spring 10 and the clamping rod 9 are fixedly welded, the wedge-shaped grooves 11 with one open side are symmetrically formed in the inner walls of two sides of the first groove 5, through holes 12 are formed in the inner wall, away from each other, of one side of each of the two wedge-shaped grooves 11, one ends, away from each other, of the two clamping rods 9 penetrate through the two wedge-shaped grooves 11 respectively and are respectively and slidably mounted in the two through holes 12, push rods 13 are slidably mounted in the through holes 12, one ends, away from each other, of the two push rods 13 extend out of the two through holes 12 respectively, and pass through the cold drawing machine body 1, the control box 2, the control console 3, the fixing seat 4, the first groove 5, The through hole 12 is matched with the push rod 13, the push rod 13 is pushed, the push rod 13 pushes the clamping rod 9, the clamping rod 9 is moved out of the through hole 12, the overload protector 7 and the mounting seat 6 can be easily disassembled at the moment, when the overload protector 7 is mounted, only the mounting seat 6 needs to be clamped into the first groove 5, the clamping rod 9 and the balls are clamped into the wedge-shaped groove 11, the mounting seat 6 is pressed, the balls roll on the inner wall of the wedge-shaped groove 11 and push the clamping rod 9, the clamping rod 9 compresses the spring 10, when the second groove 8 is aligned with the through hole 12, the clamping rod 9 resets and fixes the mounting seat 6 under the action of the spring 10.

In the invention, the overload protector 7 comprises a diode D5, the anode of the diode D5 is connected with one end of a relay K, one end of a capacitor C7, the anode of a diode D3 and the anode of a diode D4, the cathode of a diode D5 is connected with one end of a resistor R5 and is connected with the other end of the relay K and the other end of a capacitor C7, the cathode of a diode D4 is connected with the anode of a diode D2 and is grounded, the other end of a resistor R5 is connected with the cathode of a diode D1 and is connected with the cathode of a diode D2, the cathode of a diode D3 is connected with one end of a resistor R2, one end of a resistor R3 and one end of a resistor R4 and is connected with the anode of a diode D1, the other end of a resistor R2 is connected with one end of a capacitor C4, the other end of a capacitor C4 is connected with one end of a knife switch 1 and one end of a thermal relay QS FR1, and the other end of the knife, the other end of a thermal relay FR1 is connected with a motor M, the other end of a resistor R3 is connected with one end of a capacitor C5, the other end of the capacitor C5 is connected with a capacitor C2, the other end of the capacitor C2 is connected with one end of a knife switch QS2, one end of a thermal relay FR2 and one end of a button SB1, the other end of the knife switch QS2 is connected with an input end B, the other end of the thermal relay FR2 is connected with the motor M, the other end of the resistor R4 is connected with one end of a capacitor C6, the other end of the capacitor C6 is connected with a capacitor C3, the other end of the capacitor C3 is connected with one end of a knife switch QS3, one end of the thermal relay FR3 and one end of a single-position switch J, the other end of the knife switch QS3 is connected with an input end C, the other end of the thermal relay FR3 is connected with the motor M, the other end, the other end of the thermal relay FR4 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the other end of a button SB2 and the other end of the alternating current contactor KM, the resistances of the resistor R1, the resistor R2, the resistor R3, the resistor R4 and the resistor R5 are 1.5K omega, 2.4K omega and 10K omega in sequence, the capacitances of the capacitor C1, the capacitance C2, the capacitance C3, the capacitance C4, the capacitance C5, the capacitance C6 and the capacitance C7 are 2.4uF, 2.4uF and 150uF, the models of the diode D1, the diode D2, the diode D3, the diode D4 and the diode D5 are 1N 1 respectively, the models of the thermal FR1, the thermal relay FR1 and the thermal relay JK 40072 are symmetrical limiting grooves, the models of the two sides of the R3613-L-R368 are symmetrically provided with limiting blocks, and the R3613-L-R-, the limiting block is connected with the limiting groove in a sliding mode, one ends, far away from each other, of the two push rods 13 are fixedly provided with pressing blocks, one ends, far away from each other, of the two clamping rods 9 are nested with balls, the balls are matched with the wedge-shaped groove 11, the knife switch QS1, the knife switch QS2 and the knife switch QS3 are connected, the button SB2 is pressed, the normally closed contact of the B, C phase, the relay K, the thermal relay FR4 and the button SB2 and an alternating current contactor KM coil form a loop to be powered on, the three main contacts connected in the main circuit in series are closed, a power supply motor M is switched on to rotate, the button SB2 is released to be restored to the off position, the alternating current contactor KM connected with the button SB2 in parallel is closed, the coil of the alternating current contactor KM is still powered on and self-locked, when the shutdown is needed, the button SB1 is pressed to disconnect the power supply, the alternating current contactor KM is disconnected, the motor M, reduce the later maintenance cost, dismouting overload protection ware 7 that simultaneously can make things convenient for quick, overload protection ware 7 is maintained in the easy access.

In practical use, when a knife switch QS1, a knife switch QS2 and a knife switch QS3 are closed, a button SB2 is pressed, a loop is formed by a normally closed contact of the knife switch QS1, the knife switch QS2 and a knife switch QS3, a switch SB2 is connected with a coil of an alternating current contactor KM through a B, C phase, a relay K, a thermal relay FR4 and the button SB2, the three main contacts which are connected in series in a main circuit are closed, a power supply motor M is switched on and rotates, the button SB2 is released, the alternating current contactor KM which is connected with the button SB2 in parallel is closed, the coil of the alternating current contactor KM is still electrified and self-locked, when the machine needs to be stopped, the button SB1 is pressed to disconnect the dynamic contact, the alternating current contactor KM is disconnected, the motor M cuts off the power supply and stops rotating, when the overload protector 7 needs to be disassembled for maintenance, only a push, when overload protector 7 is installed, only need advance first recess 5 with mount pad 6 card in, in kelly 9 will block into wedge groove 11 with the ball, press mount pad 6, the ball rolls and promotes kelly 9 on the inner wall of wedge groove 11, and kelly 9 compression spring 10, when second recess 8 aligns with through-hole 12, under spring 10's effect, kelly 9 resets and fixes mount pad 6 to it is fixed to overload protector 7.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An overload-proof cold drawing machine comprises a cold drawing machine body (1) and is characterized in that a control box (2) is arranged on one side of the cold drawing machine body (1), a control console (3) is arranged on one side, away from the cold drawing machine body (1), of the control box (2), an opening is formed in one side of the control box (2), a fixing seat (4) is fixedly installed on the inner wall of the side, away from the opening, of the control box (2), a first groove (5) is formed in one side, close to the opening of the control box (2), of the fixing seat (4), a mounting seat (6) is installed in the first groove (5) in a sliding mode, one side of the mounting seat (6) extends out of the first groove (5), and an overload protector (7) is fixedly installed on the mounting;

the two sides of the mounting seat (6) are symmetrically provided with second grooves (8), clamping rods (9) are arranged in the second grooves (8) in a sliding mode, the inner wall, away from the opening of the second grooves (8), of each second groove (8) is welded with a spring (10), the springs (10) and the clamping rods (9) are fixed in a welding mode, wedge-shaped grooves (11) with one open side are symmetrically formed in the inner walls of the two sides of the first grooves (5), through holes (12) are formed in the inner walls, away from each other, of the two wedge-shaped grooves (11), one ends, away from each other, of the two clamping rods (9) respectively penetrate through the two wedge-shaped grooves (11) and are respectively installed in the two through holes (12) in a sliding mode, push rods (13) are installed in the through holes (12) in a sliding mode, and one ends, away from; the overload protector (7) comprises a diode D5, the anode of the diode D5 is connected with one end of a relay K, one end of a capacitor C7, the anode of a diode D3 and the anode of a diode D4, the cathode of a diode D5 is connected with one end of a resistor R5 and is connected with the other end of the relay K and the other end of a capacitor C7, the cathode of a diode D4 is connected with the anode of a diode D2 and is grounded, the other end of a resistor R5 is connected with the cathode of a diode D1 and is connected with the cathode of a diode D2, the cathode of a diode D3 is connected with one end of a resistor R2, one end of a resistor R3 and one end of a resistor R4 and is connected with the anode of a diode D1, the other end of a resistor R2 is connected with one end of a capacitor C4, the other end of a capacitor C4 is connected with one end of a knife switch QS1, and the other end of a knife switch QS1 is connected with an input end A, the other end of a thermal relay FR1 is connected with a motor M, the other end of a resistor R3 is connected with one end of a capacitor C5, the other end of the capacitor C5 is connected with a capacitor C2, the other end of the capacitor C2 is connected with one end of a knife switch QS2, one end of a thermal relay FR2 and one end of a button SB1, the other end of the knife switch QS2 is connected with an input end B, the other end of the thermal relay FR2 is connected with the motor M, the other end of the resistor R4 is connected with one end of a capacitor C6, the other end of the capacitor C6 is connected with a capacitor C3, the other end of the capacitor C3 is connected with one end of a knife switch QS3, one end of the thermal relay FR3 and one end of a single-position switch J, the other end of the knife switch QS3 is connected with an input end C, the other end of the thermal relay FR3 is connected with the motor M, the other end, the other end of the thermal relay FR4 is connected with one end of a resistor R1, and the other end of the resistor R1 is connected with the other end of the button SB2 and the other end of the alternating current contactor KM; the resistances of the resistor R1, the resistor R2, the resistor R3, the resistor R4 and the resistor R5 are 1.5 Komega, 2.4 Komega and 10 Komega in sequence; the capacitance values of the capacitor C1, the capacitor C2, the capacitor C3, the capacitor C4, the capacitor C5, the capacitor C6 and the capacitor C7 are 2.4uF, 2.4uF and 150uF in sequence.

2. An overload prevention drawbench as claimed in claim 1 wherein the diode D1, the diode D2, the diode D3, the diode D4 and the diode D5 are all 1N4001 in size.

3. An overload prevention cold drawing machine according to claim 1, wherein the thermal relay FR1, FR2, FR3 and FR4 are all model numbers JRlO-10 and the relay K is model number JRX-13F.

4. The cold drawing machine with the overload prevention function according to claim 1, wherein limiting grooves are symmetrically formed in inner walls of two sides of the second groove (8), limiting blocks are symmetrically and fixedly mounted on two sides of the clamping rod (9), and the limiting blocks are connected with the limiting grooves in a sliding mode.

5. An overload prevention drawbench as claimed in claim 1 wherein the ends of the two push rods (13) remote from each other are each fixedly mounted with a press block, and the ends of the two clamp rods (9) remote from each other are each nested with a ball which is adapted to the wedge groove (11).