CN116000117A - Automatic insertion equipment of seamless steel tube cold rolling mill - Google Patents

Abstract

The invention relates to the technical field of cold rolling production equipment, in particular to automatic insertion equipment of a seamless steel tube cold rolling mill. The invention provides automatic insertion equipment of a seamless steel tube cold rolling mill with high conveying speed. The utility model provides an automatic insertion equipment of seamless steel pipe cold rolling mill, including supporting the body frame, servo motor, adjustment mechanism, runner, drive assembly and lubrication mechanism, servo motor is installed to supporting body frame right part rear side, is equipped with adjustment mechanism on the supporting body frame, and the last rotation of adjustment mechanism is connected with the runner, and the last left and right sides of supporting body frame all rotates to be connected with the runner, is connected with drive assembly between the runner, and supporting body frame upper portion left side is equipped with the lubrication mechanism that is used for reducing the removal frictional force. According to the invention, the bolt is far away from the pushing frame, and the liquid pump is started, so that lubricating grease is dripped onto untreated round steel through the upper grease outlet, and then the untreated round steel of the lubricating grease is driven to penetrate through the die sleeve more quickly, so that the effect of dripping the lubricating grease is realized, and the conveying speed is higher.

Description

Automatic insertion equipment of seamless steel tube cold rolling mill

Technical Field

The invention relates to the technical field of cold rolling production equipment, in particular to automatic insertion equipment of a seamless steel tube cold rolling mill.

Background

The seamless steel pipe is a steel pipe without joints on the surface, people usually insert untreated round steel into a cold rolling mill through insertion equipment to process the untreated round steel into the seamless steel pipe, the existing insertion equipment consists of a bracket, a motor, a driving wheel and a driving belt, the driving wheel and the driving belt are driven by the motor to rotate, the untreated round steel is placed on the rotating driving wheel, the driving wheel drives the untreated round steel to move and insert into a mold sleeve, and the untreated round steel moves slowly when being inserted into the mold sleeve due to larger friction force in the process of penetrating through the mold sleeve.

The automatic insertion equipment of the seamless steel tube cold rolling mill with high transmission speed is designed, so that the effect of low transmission speed of the existing insertion equipment in the using process is overcome.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides automatic insertion equipment for a seamless steel tube cold rolling mill with higher transmission speed, so as to overcome the defect of lower transmission speed of the existing insertion equipment.

In order to achieve the above object, the present invention is realized by the following scheme: an automatic insertion device of a seamless steel tube cold rolling mill, comprising:

the servo motor is arranged at the rear side of the right part of the supporting main frame;

the supporting main frame is provided with an adjusting mechanism;

the rotating wheel is rotatably connected to the adjusting mechanism, and the rotating wheel is rotatably connected to the left side and the right side of the supporting main frame;

the transmission assembly is connected between the rotating wheels;

the left side of the upper part of the supporting main frame is provided with a mould sleeve;

and the left side of the upper part of the supporting main frame is provided with a lubrication mechanism for reducing the moving friction force.

As an improvement of the above scheme, the adjusting mechanism comprises:

the lower part of the supporting main frame is connected with a mounting plate;

the left side and the right side of the upper part of the mounting plate are provided with air cylinders;

the lifting plate is connected between the telescopic rods of the air cylinders, and is used for driving the rotating wheels to move.

As an improvement of the above-mentioned scheme, the lubrication mechanism includes:

the left side of the upper part of the supporting main frame is connected with a lubricating grease box;

the right part in the lubricating grease box is provided with a liquid pump;

the front part of the liquid pump is communicated with the upper lipid outlet;

the front side and the rear side of the left wall in the lubricating grease box are connected with the first telescopic components;

a top plate is connected between the right parts of the first telescopic components and is connected with the lubricating grease box in a sliding manner;

the pushing frame is connected with the left part of the top plate and is connected with the lubricating grease box in a sliding manner;

the left part of the lubricating grease box is connected with a bolt.

As the improvement of above-mentioned scheme, still including being used for the quick positioning mechanism to untreated round steel location, quick positioning mechanism is including:

the rotating frame is rotatably connected with the left side and the right side of the supporting main frame;

the rear sides of the rotating frames are connected with bidirectional threaded rods;

and the clamping plate is connected with the two-way threaded rod in a threaded manner.

As the improvement of above-mentioned scheme, still including being used for smearing the mechanism of smearing of lubricating grease to untreated round steel downside, smear the mechanism including:

the lower side of the rear part of the upper fat outlet is connected with an extension pipe;

the left part in the supporting main frame is connected with the second telescopic component;

the sliding plate is connected between the second telescopic components;

the lower fat outlet is connected with the right part of the sliding plate, and the lower fat outlet is communicated with the extension pipe.

As an improvement of the scheme, the lower lipid outlet is arc-shaped.

As the improvement of above-mentioned scheme, still including being used for compressing tightly the idle running prevention mechanism of untreated round steel, idle running prevention mechanism is including:

the right side of the upper part of the supporting main frame is connected with a positioning rod;

the driving motor is arranged at the top of the positioning rod;

the output shaft of the driving motor is connected with a positioning block;

the left side and the right side of the upper part of the positioning block are both rotationally connected with the rollers.

As the improvement of above-mentioned scheme, still including being used for driving the laborsaving mechanism that promotes the frame left movement, laborsaving mechanism includes:

the upper side and the lower side of the left part of the lubricating grease box are connected with the third telescopic components;

the upper side and the lower side of the left part of the pushing frame are connected with the pushing blocks;

the upper side and the lower side of the left part of the lubricating grease box are rotationally connected with the stop blocks;

torsion springs are connected between the check blocks and the lubricating grease box, the torsion springs are wound on the check blocks, the pushing frame moves rightwards to drive the jacking blocks to move rightwards, the jacking blocks are in contact with the check blocks, the check blocks rotate, the torsion springs deform in a torsion mode, the third telescopic assembly resets and is in contact with the pushing frame, and the third telescopic assembly drives the pushing frame to move leftwards.

The invention has the advantages that: 1. according to the invention, the bolt is far away from the pushing frame, and the liquid pump is started, so that grease is dripped onto untreated round steel through the upper grease outlet, and then the untreated round steel of the grease is driven to penetrate through the die sleeve faster, so that the effect of dripping the grease is realized, and the conveying speed is higher;

2. the rotating frame is manually rotated, so that the two-way threaded rod rotates, the clamping plates move inwards, and untreated round steel subsequently passes through the space between the two clamping plates to move leftwards, thereby realizing the directional effect and avoiding the deviation of the untreated round steel in the conveying process;

3. through starting driving motor, driving motor's output shaft rotates and drives the locating piece and rotate for the gyro wheel rotates, and the gyro wheel rotates to compress tightly with the untreated round steel of removal, and the gyro wheel takes place to rotate, has realized the effect of compressing tightly with this, avoids runner idle running to influence transfer rate.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a schematic perspective view of a first embodiment of an adjusting mechanism according to the present invention.

Fig. 4 is a schematic view of a second perspective structure of the adjusting mechanism of the present invention.

Fig. 5 is a schematic view showing a first perspective structure of the lubrication mechanism of the present invention.

Fig. 6 is a schematic cross-sectional perspective view of the lubrication mechanism of the present invention.

Fig. 7 is a schematic view showing a second perspective structure of the lubrication mechanism of the present invention.

Fig. 8 is a schematic view of a third cross-sectional perspective of the lubrication mechanism of the present invention.

Fig. 9 is a schematic perspective view of a fourth cross-sectional view of a lubrication mechanism according to the present invention.

Fig. 10 is a schematic perspective view of a quick positioning mechanism according to the present invention.

Fig. 11 is a schematic view of a part of a three-dimensional structure of the quick positioning mechanism of the present invention.

Fig. 12 is a schematic view of a first perspective structure of the smearing mechanism of the present invention.

Fig. 13 is a schematic view showing a second perspective structure of the smearing mechanism of the present invention.

Fig. 14 is a schematic view of a third perspective structure of the smearing mechanism of the present invention.

Fig. 15 is a schematic view of a partially cut-away perspective of the application mechanism of the present invention.

Fig. 16 is a schematic view showing a first perspective structure of the anti-idle rotation mechanism of the present invention.

Fig. 17 is a schematic view of a second perspective structure of the anti-idle rotation mechanism of the present invention.

Fig. 18 is a schematic diagram of a first perspective structure of the labor-saving mechanism of the present invention.

Fig. 19 is a schematic view of a second perspective of the labor-saving mechanism of the present invention.

FIG. 20 is a schematic view of a partially cut-away perspective of the labor-saving mechanism of the present invention.

Meaning of reference numerals in the drawings: 1: support main frame, 2: servo motor, 3: die sleeve, 4: untreated round steel, 5: rotating wheel, 6: transmission assembly, 7: adjustment mechanism, 71: mounting plate, 72: cylinder, 73: lifting plate, 8: lubrication mechanism, 81: grease box, 82: liquid pump, 83: upper lipid outlet, 84: first telescoping assembly, 85: top plate, 86: pushing frame, 87: bolt, 9: quick positioning mechanism, 91: clamping plate, 92: bidirectional threaded rod, 93: rotating frame, 10: smearing mechanism, 101: a lower lipid outlet, 102: slide plate, 103: extension tube, 104: second telescopic assembly, 11: anti-lost motion mechanism, 111: positioning rod, 112: drive motor, 113: positioning block, 114: roller, 12: labor-saving mechanism, 121: third telescoping assembly, 122: stop block, 123: torsion spring, 124: and (5) a top block.

Detailed Description

The invention will be further described with reference to the accompanying drawings and detailed description below:

example 1

Referring to fig. 1 and 2, the automatic insertion equipment of seamless steel pipe cold rolling mill, including supporting body frame 1, servo motor 2, mould sleeve 3, runner 5, drive assembly 6, adjustment mechanism 7 and lubrication mechanism 8, there is servo motor 2 in the rear side of supporting body frame 1 right part through the bolt rigid coupling, be equipped with adjustment mechanism 7 on the supporting body frame 1, be connected with three runner 5 on the adjustment mechanism 7 in the rotation, the equal rotation in left and right sides is connected with runner 5 on the supporting body frame 1, runner 5 has five, be connected with drive assembly 6 between two runners 5, drive assembly 6 has four, drive assembly comprises two belt pulleys and driving belt, all be connected with the belt pulley on two runners 5 in the outside, all be connected with two belt pulleys on the three runner 5 of inboard, the belt pulley has eight, around driving belt on two belt pulleys, mould sleeve 3 is installed in the upper left side of supporting body frame 1, the upper portion left side of supporting body frame 1 is equipped with lubrication mechanism 8.

Referring to fig. 1, 3 and 4, the adjusting mechanism 7 includes a mounting plate 71, air cylinders 72 and a lifting plate 73, the lower portion of the supporting main frame 1 is connected with the mounting plate 71, the air cylinders 72 are fixedly connected to the left and right sides of the upper portion of the mounting plate 71 through bolts, the lifting plate 73 is connected between telescopic rods of the two air cylinders 72, and three rotating wheels 5 in the middle are rotatably connected with the lifting plate 73.

Referring now to fig. 1, fig. 2, fig. 5, fig. 6, fig. 7, fig. 8 and fig. 9, the lubrication mechanism 8 is including grease box 81, liquid pump 82, top grease outlet 83, first telescopic assembly 84, roof 85, pushing rack 86 and bolt 87, support body frame 1 upper portion left side is connected with grease box 81, liquid pump 82 is installed to the right part in the grease box 81, the front portion intercommunication of liquid pump 82 has top grease outlet 83, both sides all are connected with two first telescopic assembly 84 around the left wall in the grease box 81, first telescopic assembly 84 is four, first telescopic assembly 84 comprises telescopic rod and slide bar, both sides all are connected with two telescopic rod around the left wall in the grease box 81, the telescopic rod is four, all be connected with the spring in the telescopic rod, the spring has four, be connected with roof 85 between four first telescopic assembly 84 right parts, roof 85 and grease box 81 sliding connection, roof 85 left part is connected with pushing rack 86, pushing rack 86 and grease box 81 sliding connection, box 81 left part is connected with pushing rack 87, 86 contacts with grease rack 86.

When people need to cold-roll the seamless steel tube, people can use the automatic insertion equipment of the seamless steel tube cold rolling machine, firstly people install the automatic insertion equipment of the seamless steel tube cold rolling machine at a proper position and inject proper amount of lubricating grease into the lubricating grease box 81, when the diameter of the mouth of the untreated round steel tube 4 needing to be cold-rolled is larger, people start the servo motor 2, the output shaft of the servo motor 2 rotates to drive the rotating wheel 5 and the transmission assembly 6 to rotate, then people transmit the untreated round steel tube 4 to the rotating wheel 5, the rotating wheel 5 drives the untreated round steel tube 4 to move leftwards, when the diameter of the untreated round steel tube 4 needing to be cold-rolled is smaller, people firstly start the air cylinder 72, the telescopic rod of the air cylinder 72 stretches upwards to drive the lifting plate 73 to move upwards, so that the middle three rotating wheels 5 move upwards, after the middle three rotating wheels 5 move upwards to the proper positions, the cylinder 72 is turned off, then the servo motor 2 is started to transfer the untreated round steel 4 to the middle three rotating wheels 5 according to the above steps, after the untreated round steel 4 moves to the right, the bolt 87 is pulled out from the pushing frame 86, the liquid pump 82 is started, the liquid pump 82 drops grease onto the untreated round steel 4 through the upper grease outlet 83, then the untreated round steel 4 with grease moves leftwards through the mold sleeve 3 for cold rolling, during the starting process of the liquid pump 82, the grease in the grease box 81 is reduced, the deformed first telescopic component 84 is reset to drive the top plate 85 to move rightwards to push the grease, so that the pushing frame 86 moves rightwards, the pumping effect is realized, the liquid pump 82 is prevented from being pumped out, when the pushing is finished, the servo motor 2 and the liquid pump 82 are turned off, and the cylinder 72 is started, the telescopic rod of the air cylinder 72 is shortened downwards to drive the lifting plate 73 to move downwards, so that the middle three rotating wheels 5 move downwards, after the middle three rotating wheels 5 move downwards to a proper position, people close the air cylinder 72, when the lubricating grease in the lubricating grease box 81 is small, people first open the lubricating grease box 81 and manually move the pushing frame 86 leftwards, so that the first telescopic component 84 is deformed, the top plate 85 moves leftwards, after the top plate 85 moves leftwards to a proper position, people insert the bolt 87 into the pushing frame 86, a proper amount of lubricating grease is injected into the lubricating grease box 81, and after the injection is completed, people close the lubricating grease box 81.

Example 2

On the basis of embodiment 1, referring to fig. 1, 2, 10 and 11, the quick positioning mechanism 9 is further included, the quick positioning mechanism 9 includes a clamping plate 91, a bidirectional threaded rod 92 and a rotating frame 93, the rotating frames 93 are rotatably connected to the left side and the right side of the supporting main frame 1, the bidirectional threaded rods 92 are welded to the rear sides of the two rotating frames 93, two clamping plates 91 are threadedly connected to the bidirectional threaded rods 92, and the clamping plates 91 are four.

Referring now to fig. 1, fig. 2, fig. 12, fig. 13, fig. 14 and fig. 15, the device further comprises a smearing mechanism 10, the smearing mechanism 10 comprises a lower grease outlet 101, a sliding plate 102, an extension pipe 103 and a second telescopic component 104, the lower side of the rear part of the upper grease outlet 83 is connected with the extension pipe 103, the left part in the supporting main frame 1 is connected with three second telescopic components 104, the second telescopic component 104 consists of telescopic rods and springs, the left part in the supporting main frame 1 is connected with three telescopic rods, the sliding plate 102 is connected between the three telescopic rods, the springs are connected between the telescopic rods and the sliding plate 102, the springs are wound on the telescopic rods, the right part of the sliding plate 102 is connected with the lower grease outlet 101, the lower grease outlet 101 is communicated with the extension pipe 103, and the lower grease outlet 101 is arc-shaped.

Referring to fig. 1, 2, 16 and 17, the anti-idle rotation mechanism 11 is further included, the anti-idle rotation mechanism 11 includes a positioning rod 111, a driving motor 112, a positioning block 113 and a roller 114, the right side of the upper portion of the supporting main frame 1 is welded with the positioning rod 111, the top of the positioning rod 111 is fixedly connected with the driving motor 112 through bolts, an output shaft of the driving motor 112 is connected with the positioning block 113, and both sides of the left and right sides of the upper portion of the positioning block 113 are rotatably connected with the roller 114.

Referring to fig. 1, fig. 2, fig. 18, fig. 19 and fig. 20, the device further comprises a labor-saving mechanism 12, the labor-saving mechanism 12 comprises a third telescopic component 121, a stop block 122, a torsion spring 123 and a top block 124, the upper side and the lower side of the left part of the grease box 81 are all connected with the third telescopic component 121, the third telescopic component 121 consists of a telescopic rod and a spring, the upper side and the lower side of the left part of the grease box 81 are all connected with the telescopic rod, the spring is connected in the telescopic rod, the top block 124 is welded on the upper side and the lower side of the left part of the pushing frame 86, the stop block 122 is rotationally connected with the upper side and the lower side of the left part of the grease box 81, the stop block 122 is contacted with the stop block 122 after moving, the torsion spring 123 is connected between the two stop blocks 122 and the grease box 81, and the torsion spring 123 winds around the stop block 122.

When people need to position the unprocessed round steel 4, people can manually rotate the rotating frame 93, so that the bidirectional threaded rod 92 rotates, the clamping plate 91 moves inwards, after the clamping plate 91 moves inwards to a proper position, people loosen the rotating frame 93, and then the unprocessed round steel 4 passes through between the two clamping plates 91 to move leftwards, so that the positioning effect is achieved, the offset in the process of conveying the unprocessed round steel 4 is avoided, when the positioning is not needed, people manually reversely rotate the rotating frame 93, so that the bidirectional threaded rod 92 reversely rotates, and the clamping plate 91 moves outwards.

Under the action of the liquid pump 82, grease flows into the lower grease outlet 101 through the upper grease outlet 83 and the extension pipe 103, when the untreated round steel 4 with smaller pipe orifice diameter moves leftwards to be in contact with the lower grease outlet 101, the grease flowing out of the lower grease outlet 101 is smeared on the lower side of the untreated round steel 4, when the untreated round steel 4 with larger pipe orifice diameter is in contact with the lower grease outlet 101, the lower grease outlet 101 and the sliding plate 102 move downwards adaptively, the second telescopic assembly 104 is compressed, and meanwhile, the grease flowing out of the lower grease outlet 101 is smeared on the lower side of the untreated round steel 4, and when the untreated round steel 4 is far away from the sliding plate 102, the second telescopic assembly 104 resets to drive the lower grease outlet 101 and the sliding plate 102 to move upwards.

When untreated round steel 4 moves to the left below roller 114, people start driving motor 112, the output shaft of driving motor 112 rotates to drive positioning block 113 to rotate, so that roller 114 rotates, when roller 114 rotates to be in contact with untreated round steel 4, people turn off driving motor 112, untreated round steel 4 moving to the left drives roller 114 to rotate clockwise, so that the effect of compaction is achieved, the effect that the idle running of rotating wheel 5 affects the conveying speed is avoided, when compaction is not needed, people start driving motor 112, the output shaft of driving motor 112 rotates reversely to drive positioning block 113 to rotate reversely, so that roller 114 rotates reversely, and when roller 114 rotates reversely to a proper position, people turn off driving motor 112.

In the initial state, the third telescopic assembly 121 deforms, the pushing frame 86 moves rightwards to drive the top block 124 to move rightwards, when the top block 124 moves rightwards to be in contact with the stop block 122, the top block 124 drives the stop block 122 to rotate, so that the torsion spring 123 is in torsion deformation, when the stop block 122 rotates to be far away from the third telescopic assembly 121, the third telescopic assembly 121 is reset, when the third telescopic assembly 121 is in contact with the pushing frame 86, the pushing frame 86 is pushed to move leftwards, so that the labor-saving effect is achieved, in the process that the third telescopic assembly 121 pushes the pushing frame 86 to move leftwards, people can manually pull the pushing frame 86 leftwards, after the pushing frame 86 moves leftwards to a proper position, people insert the plug pins 87 into the pushing frame 86, and manually move the third telescopic assembly 121 rightwards, so that the third telescopic assembly 121 is compressed, and after the third telescopic assembly 121 moves rightwards to a proper position, the torsion spring 123 resets to drive the top block 124 to reversely rotate to clamp the third telescopic assembly 121.

It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the invention as defined in the appended claims.

Claims (8)

1. An automatic insertion device of a seamless steel tube cold rolling mill is characterized by comprising:

the servo motor (2) is arranged at the rear side of the right part of the supporting main frame (1);

the adjusting mechanism (7) is arranged on the supporting main frame (1);

the rotating wheel (5) is rotatably connected to the adjusting mechanism (7), and the rotating wheel (5) is rotatably connected to the left side and the right side of the main support frame (1);

the transmission assembly (6) is connected between the rotating wheels (5), and the transmission assembly (6) is connected between the rotating wheels;

the mold sleeve (3) is arranged on the left side of the upper part of the supporting main frame (1);

and the lubrication mechanism (8) is arranged on the left side of the upper part of the supporting main frame (1), and the lubrication mechanism (8) is used for reducing the moving friction force.

2. An automatic insertion device for a cold rolling mill for seamless steel pipes according to claim 1, characterized in that the adjusting mechanism (7) comprises:

the mounting plate (71) is connected with the lower part of the supporting main frame (1);

the air cylinders (72) are arranged on the left side and the right side of the upper part of the mounting plate (71);

lifting plates (73), lifting plates (73) for driving the rotating wheels (5) to move are connected between telescopic rods of the air cylinders (72), and the rotating wheels (5) in the middle are rotatably connected with the lifting plates (73).

3. An automatic insertion device for a cold rolling mill for seamless steel pipes according to claim 2, characterized in that the lubrication means (8) comprise:

the left side of the upper part of the supporting main frame (1) is connected with the lubricating grease box (81);

a liquid pump (82), wherein the liquid pump (82) is arranged at the right part in the lubricating grease box (81);

an upper fat outlet (83), wherein the front part of the liquid pump (82) is communicated with the upper fat outlet (83);

the first telescopic components (84) are connected to the front side and the rear side of the left wall in the lubricating grease box (81);

a top plate (85), wherein the top plate (85) is connected between the right parts of the first telescopic assemblies (84), and the top plate (85) is connected with the lubricating grease box (81) in a sliding manner;

a pushing frame (86), wherein the left part of the top plate (85) is connected with the pushing frame (86), and the pushing frame (86) is connected with the lubricating grease box (81) in a sliding way;

the bolt (87), the left part of the grease box (81) is connected with the bolt (87).

4. An automatic insertion device for a cold rolling mill for seamless steel pipes according to claim 3, further comprising a quick positioning mechanism (9) for positioning the untreated round steel (4), the quick positioning mechanism (9) comprising:

the rotating frame (93) is rotatably connected with the left side and the right side of the upper support main frame (1);

the rear sides of the two-way threaded rods (92) are connected with the two-way threaded rods (92) respectively;

the clamping plate (91) is connected with the clamping plate (91) through threads on the bidirectional threaded rod (92).

5. An automatic insertion device for a cold rolling mill for seamless steel pipes according to claim 4, further comprising a coating mechanism (10) for coating the lower side of the untreated round steel (4) with grease, wherein the coating mechanism (10) comprises:

an extension pipe (103) is connected with the lower side of the rear part of the upper fat outlet (83);

the left part in the supporting main frame (1) is connected with a second telescopic component (104);

the sliding plate (102) is connected between the second telescopic components (104);

the lower fat outlet (101), the right part of the sliding plate (102) is connected with the lower fat outlet (101), and the lower fat outlet (101) is communicated with the extension pipe (103).

6. An automatic insertion device for a seamless steel pipe cold rolling mill according to claim 5, wherein the lower grease outlet (101) is arc-shaped.

7. An automatic insertion device for a seamless steel pipe cold rolling mill according to claim 6, further comprising an anti-idle mechanism (11) for pressing the untreated round steel (4), wherein the anti-idle mechanism (11) comprises:

the right side of the upper part of the supporting main frame (1) is connected with a positioning rod (111);

a driving motor (112), wherein the driving motor (112) is arranged at the top of the positioning rod (111);

the positioning block (113) is connected with an output shaft of the driving motor (112);

the roller (114) is rotatably connected with the left side and the right side of the upper part of the positioning block (113).

8. An automatic insertion device for a seamless steel pipe cold rolling mill according to claim 7, further comprising a labor-saving mechanism (12) for driving the pushing frame (86) to move leftward, the labor-saving mechanism (12) comprising:

the upper side and the lower side of the left part of the lubricating grease box (81) are connected with the third telescopic components (121);

the top block (124) is connected with the top block (124) at the upper side and the lower side of the left part of the pushing frame (86);

the stop block (122) is rotationally connected with the upper side and the lower side of the left part of the lubricating grease box (81);

torsion spring (123), all be connected with torsion spring (123) between dog (122) and lubricating grease case (81), torsion spring (123) are around on dog (122), promote frame (86) and remove drive kicking block (124) right, kicking block (124) and dog (122) contact, dog (122) rotate, torsion spring (123) torsional deformation, third telescopic subassembly (121) reset and promote frame (86) contact, third telescopic subassembly (121) drive promote frame (86) and remove left.

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