CN108296539B

CN108296539B - Novel steel plate precision shearing machine with clamping, conveying and pressing devices

Info

Publication number: CN108296539B
Application number: CN201711379571.0A
Authority: CN
Inventors: 马立峰; 孟进礼; 黄庆学
Original assignee: Taiyuan University of Science and Technology
Current assignee: Taiyuan University of Science and Technology
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2020-09-04
Anticipated expiration: 2037-12-20
Also published as: CN108296539A

Abstract

The utility model provides a novel from steel sheet precision shearing machine who takes pinch and closing device belongs to mechanical shearing production technical field, mainly includes garrulous device, lath pinch device and synchronous closing device of cutting. The clamping and conveying device can send the batten clamps with different shapes and sizes to the shearing edge, and when the shearing edge descends to shear, the synchronous pressing device presses the battens tightly, so that the battens are prevented from moving when being sheared. The pressing and shearing functions of the invention can be synchronously carried out, thereby greatly improving the production efficiency and reducing the labor intensity of workers; the shearing device is particularly suitable for shearing irregular plates such as waste steel plates, and the like, and after the waste steel is sheared into small blocks according to the set specification and size, the small blocks are used for regulating the temperature of blast furnace steelmaking, so that the waste steel is recycled, and the waste is changed into valuable.

Description

Novel steel plate precision shearing machine with clamping, conveying and pressing devices

Technical Field

The invention belongs to the technical field of mechanical shearing production, and particularly relates to a novel steel plate precision shearing machine with a clamping and pressing device.

Technical Field

The global crude steel yield in 2015 is 15.96 million tons, China, Japan, India, America and Russia are countries producing crude steel in the first five countries of the world, and the percentage of 15 years is 50.16%, 6.59%, 5.61%, 4.94% and 4.46%, respectively. Wherein the yields of the hot-rolled long product and the hot-rolled sheet account for 37.6% and 47.4% of the total yield of the steel, respectively. And the proportion of Chinese crude steel output in the world is increased year by year, so that the method is a genuine big country for steel production. Meanwhile, although the yield of rough steel in China is large, the whole is not strong, products of the prior art, whether steel plates or steel rolling sections are rolled, depend on a steel rolling production line to improve the quality of the products, and the production process mainly comprises a rough rolling part, a semi-finish rolling part and a finish rolling part.

Because of the process problem, the semi-finished blank produced by the semi-finish rolling part is easy to have steel piling and cold steel phenomena before entering the finish rolling production process, and in order to ensure the product quality, a shearing machine is usually arranged on a steel rolling production line to shear off the head of the steel rolling blank which does not accord with the set temperature, so as to ensure that the blank entering the finish rolling part accords with the technical requirement temperature. In addition, when some steel billets are discharged, the temperature of the steel billets is lower than the set technical requirement, the subsequent rolling process cannot be carried out continuously, and the broken steel rolling billets must be sheared off.

Although the sheared steel can not meet the technical requirements of rolled finished products, the sheared steel can still meet the performance index requirements of general steel, so that the rolled steel blanks cut from a rolled steel production line have high application value. The steel rolling blanks cut out in the prior art are different in size and shape and different in thickness, subsequent recycling is difficult and low in efficiency, the blanks cut out are specially cut into regular plates for improving the recycling rate, transportation and subsequent temperature adjustment of a steelmaking blast furnace are facilitated, the existing steelmaking temperature adjustment blocks are completely manually carried by single-shot equipment in shearing, the labor intensity is high, the danger degree is high, the equipment efficiency is low, and the production rhythm is seriously influenced.

The invention provides a novel steel plate precision shearing machine with a clamping and pressing device, which can feed laths with different thicknesses and irregular shapes and sizes into the shearing machine, and the pressing device can synchronously press along with the movement of a cutting edge, so that the flexibility of the equipment is extremely high. The shearing device can be used for shearing various types of laths, and is particularly suitable for shearing laths with extremely irregular sizes and shapes under the shearing on a rolling line.

Disclosure of Invention

Aiming at the technical situation, the invention aims to provide a novel steel plate precision shearing machine with a clamping and pressing device, so that the equipment efficiency is improved, the production rhythm is accelerated, and the manual labor intensity is reduced.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a novel from steel sheet precision shearing machine who takes pinch and closing device, this cutter includes: the device comprises a breaking and shearing device, a multi-flexible clamping and conveying device and a synchronous pressing device; the synchronous pressing device is connected with the shear blade of the breaking and shearing device in series, when the shear blade carries out shearing movement downwards, the synchronous pressing device presses the plate and reaches the blank with the shear blade, and the synchronous pressing device presses the plate when the plate is sheared by the shear blade.

The shearing device consists of a frame, a tool rest, an eccentric shaft, a motor, a sliding block, a left wedge block, a right wedge block, a wear-resisting plate, an upper shearing edge and a lower shearing edge; the upper and lower shearing blades are respectively fixed on the tool rest and the frame, the motor is fixed on the frame, the eccentric shaft is driven by the motor to rotate, and the eccentric shaft drives the slide block to move left and right and simultaneously drives the tool rest to move up and down to complete shearing movement. It is worth emphasizing that the wear-resisting plates are arranged on the upper side and the lower side of the sliding block and the left side and the right side of the machine frame, and the gap between the left side and the right side of the tool rest can be adjusted through the compression amount of the upper right wedge block.

The multi-flexible pinch device consists of an upper guide roller, a lower guide roller, a roller driving motor, a chain wheel, a chain, an upper idler wheel set, a lower idler wheel set, an upper guide roller frame, a lower guide roller frame, a supporting screw, a tension spring, a rack, a gear and a gear connecting shaft; the lower guide roller is driven to rotate by a roller driving motor fixed on the lower guide roller frame after the speed of the roller driving motor is reduced by a speed reducer, and the lower guide roller are transited through a lower idler pulley group, so that the rotating directions of all the lower guide rollers can be ensured to be the same; the driving torque of the roller driving motor is transmitted to the upper guide roller through a chain wheel fixed on the lower idler wheel set and a chain, and the same transition mode is adopted for the upper guide roller, and the same rotating direction of the upper guide roller is ensured through the upper idler wheel set; the upper guide roller, the lower guide roller, the upper idler wheel and the lower idler wheel are respectively arranged on the upper guide roller frame and the lower guide roller frame, and the rotating directions of the upper guide roller and the lower guide roller are opposite; the upper guide roller frame is hinged on the support frame, the whole upper guide roller frame can rotate around a hinged point, the distance between the upper guide roller and the lower guide roller is adjusted through the left side supporting screw and the right side supporting screw, and a tension spring is arranged at the plate outlet.

The synchronous pressing device comprises a lifting lug, a steel wire guide cable, a rail wheel, a spring group, a pressure spring and a lever type pressing frame; the lifting lug is fixed on the knife rest and connected with the steel wire guide cable, the guide cable bypasses the rail wheel and is connected with the spring group, the lower end of the spring group is connected with the lever type pressing frame hinged on the rack to drive the lever type pressing frame to move downwards, and the return stroke of the lever type pressing frame is realized by the pressure of the pressure spring. The device can move up and down along with the upper shear blade, but the pressing stroke of the device is shorter than that of the upper shear blade, the pressing function can be realized before the upper shear blade contacts a blank, the plate is prevented from moving when being sheared, and the size precision of the plate is ensured. Because the upper shearing edge and the lever type pressing frame are connected in series, the lever type pressing frame moves less than the tool rest, the displacement is offset through the elastic deformation of the spring group, and the pressure of the pressing frame can be adjusted through the spring group.

It is worth emphasizing that due to the fact that the plate strips are different in size and specification and irregular in thickness and plate shape, if the gap between the upper guide roller and the lower guide roller is fixed, the plate cannot enter a pinch roller way during pinch. In order to solve the problems, the upper guide roller frame is hinged on the support frame, the whole upper guide roller frame can rotate around a hinged point, the distance between the upper guide roller and the lower guide roller is adjusted through the left side supporting screw and the right side supporting screw, a certain inclination angle is kept, the laths with different thicknesses can smoothly enter the guide rollers, in order to prevent the plates from skidding in the guide rollers, the tension spring is arranged at the outlet of the plates, and a certain pressing force is ensured to be formed between the upper guide rail and the lower guide rail.

The invention has the beneficial effects that: the invention provides a breaking and shearing machine with a pinch pressing device. The device has the characteristics of simple structure and high reliability. The lathes with different sizes and specifications and irregular thicknesses and plate shapes can be quickly clamped and conveyed by the multi-flexible clamping and conveying device; the synchronous pressing device greatly shortens the time of the whole pressing-shearing process, greatly improves the production efficiency on a high-speed shearing line, and provides convenient conditions for recycling the scrap steel.

Drawings

FIG. 1 is a schematic view of a main view of a novel steel plate precision shearing machine;

FIG. 2 is a schematic front view of a multi-flexible pinch device;

FIG. 3 is a schematic top view of a multi-flexible pinch device;

FIG. 4 is a schematic front view of the spring assembly;

FIG. 5 is a schematic side view of the spring stack;

in the figure: 1. a lower shear blade and an upper shear blade; 2. upper shear blades are arranged; 3. a left wedge block; 4. a wear plate; 5. a right wedge block; 6. a tool holder; 7. a slider; 8. an eccentric shaft; 9. a frame; 10. an adjusting screw; 11. a motor; 12. lifting lugs; 13. a rail wheel; 14. a steel wire guide cable; 15. a spring set; 16. a lever type pressing frame; 17. a support frame; 18. an upper guide roller; 19. a support screw; 20. a chain; 21. a lower guide roller; 22. a lower idler set; 23. a tension spring; 24. an upper idler group; 25. a sprocket; 26. a speed reducer; 27. an upper guide roller frame; 28. a lower guide roller frame; 29. a roller driving motor; 30. a pressure spring.

Detailed Description

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and all other solutions obtained by those skilled in the art without any creative effort based on the solutions of the present invention belong to the protection scope of the present invention.

The invention will be described with reference to the accompanying drawings, and as shown in fig. 1 to 4, the invention provides a novel steel plate precision shearing machine with a clamping and pressing device, which mainly comprises a breaking and shearing device, a multi-flexible clamping and feeding device and a synchronous pressing device. The breaking and shearing device comprises a lower upper shear blade 1, an upper shear blade 2, a left wedge block 3, a wear-resisting plate 4, a right wedge block 5, a tool rest 6, a slide block 7, an eccentric shaft 8, a frame 9, an adjusting screw 10 and a motor 11. As shown in fig. 1, the lower and upper cutting edges 2 are fixed on a knife rest 6, a slide block 7 is arranged in the knife rest 6, an eccentric shaft 8 in the slide block 7 is driven by a motor 11 fixed on a frame 9, the slide block 7 is driven to slide left and right, the knife rest 6 is driven to move up and down, and the lower and upper cutting edges 1 fixed on the frame 9 are matched to complete the cutting movement. Because sliding abrasion exists between the sliding block and the tool rest and between the tool rest and the rack, the abrasion-resistant plates 4 are arranged on the left side and the right side of the tool rest 6 and the upper side and the lower side of the sliding block 7, so that the maintenance and the replacement are convenient. The clearance between the tool rest 6 and the machine frame 9 is adjusted by adjusting the compression amount between the left wedge block 3 and the right wedge block 5 through an adjusting screw 10.

As shown in fig. 1 to 3, the multi-flexible pinch device comprises an upper guide roller 18, a lower guide roller 21, a roller driving motor 29, a chain wheel 25, a chain 20, an upper idle roller group 24, a lower idle roller group 22, an upper guide roller frame 27, a lower guide roller frame 28, a supporting screw 19, a tension spring 23 and a supporting frame 17. Wherein, the roller driving motor 29 fixed on the lower guide roller frame 27 drives the lower guide rollers 21 to rotate after being decelerated by the decelerator 26, and the lower guide rollers are transited through the lower idle pulley group 22 in order to ensure that the rotating directions of all the lower guide rollers 21 are the same; the driving moment of the roller driving motor 29 is transmitted to the upper guide roller 18 through the chain 20 by the chain wheel 25 fixed on the lower idle wheel group 22, similarly, the upper guide roller 18 adopts the same transition mode, the rotation direction of the upper guide roller 18 is ensured to be the same by the upper idle wheel group 24, the upper guide roller, the lower guide roller, the upper idle roller group and the lower idle roller group are respectively arranged on the upper guide roller frame 27 and the lower guide roller frame 28, the rotation directions of the upper guide roller and the lower idle roller are opposite, and the plate belt is clamped and conveyed to the shearing position. It is worth emphasizing that due to the fact that the plate strips are different in size and specification and irregular in thickness and plate shape, if the gap between the upper guide roller and the lower guide roller is fixed, the plate is blocked or cannot enter a pinch roller way when the plate is pinched. In order to solve the problems, an upper guide roller frame 27 is hinged on a support frame 17, the upper guide roller frame 27 can rotate around a hinged point integrally, the distance between the upper guide roller and the lower guide roller is adjusted through a left supporting screw 19 and a right supporting screw 19, a certain inclination angle is kept, laths with different thicknesses can smoothly enter the guide rollers, and in order to place plates to slip in the guide rollers, a tension spring 23 is arranged at an outlet of the plates, so that a certain pressing force is ensured between the upper guide rail and the lower guide rail.

As shown in fig. 1, 4 and 5, the synchronous pressing device comprises a lifting lug 12, a rail wheel 13, a wire guide rope 14, a spring group 15 and a lever type pressing frame 16. The lifting lug 12 is connected with the tool rest 6, a steel wire guide rope 14 is tied on the lifting lug, the steel wire guide rope 14 is connected with the spring set 15 after passing through the rail wheel 13, the spring set drives the lever type pressing frame 16 to rotate around a hinge point, when the tool rest 6 moves downwards, the lifting lug 12 drives the steel wire guide rope 14 and the spring set 15 to move, the lever type pressing frame 16 is pulled to press the plate, the upper shearing edge finishes shearing the plate, and when the tool rest returns, the lever type pressing frame 16 is driven to rotate clockwise through the pressure of the pressure spring 30, so that the lever type pressing frame 16 is separated from the plate strip. In order to meet the requirement of working conditions, the upper shear blade needs to be pressed against the plate strip before contacting with the plate strip, so that the stroke of the lever type pressing frame 16 is designed to be shorter than that of the tool rest 6, and the poor stroke is offset by elastic deformation of the spring group; and the pressing force of the lever type pressing frame 16 can be adjusted through the pre-tightening amount of the spring set 15.

The specific working process is as follows: before the shearing starts, the supporting screws 19 are adjusted to ensure a certain opening degree between the upper guide roller frame and the lower guide roller frame, so that the laths with different thicknesses can smoothly enter. When the shearing starts, the upper guide roller and the lower guide roller rotate simultaneously to pinch the strip to the chopping and shearing device. In the clamping and conveying process, in order to ensure that a certain pressing force is formed between the upper guide rail and the lower guide rail and prevent the lath from slipping, a tension spring 23 is arranged between the upper guide roller frame and the lower guide roller frame to provide a certain pretightening force.

When the lath reaches the shearing position of the upper shearing edge, the knife rest 6 slides downwards under the driving of the eccentric shaft 8, meanwhile, the steel wire guide rope 14 pulls the lever type pressing frame 16 to rotate anticlockwise to press the lath, after the lath is pressed firmly, the upper and lower shearing edges are matched to finish the breaking process of the lath, and the method is worthy of emphasizing that although the knife rest 6 and the lever type pressing frame 16 are connected in series, the lever type pressing frame 16 presses the lath before the upper shearing edge shears, the stroke of the lever type pressing frame is shorter than that of the knife rest, and the poor stroke is offset through elastic deformation of the spring group 15. After shearing is finished, the tool rest moves upwards, the pressure spring 30 pushes the lever type pressing frame 16 to rotate clockwise, the lath is loosened, and under the driving of the clamping and conveying device, the lath is continuously conveyed to the upper shearing edge, and subsequent shearing movement is finished.

The technical solutions in the present invention are clearly and completely described, and all other solutions obtained by those skilled in the art without creative efforts based on the solutions in the present invention belong to the protection scope of the present invention.

Claims

1. The utility model provides a novel from steel sheet precision shearing machine who takes pinch and closing device, this cutter includes: the device comprises a breaking and shearing device, a multi-flexible clamping and conveying device and a synchronous pressing device; the synchronous pressing device is connected with the knife rest of the breaking and shearing device in series, and the knife rest drives the synchronous pressing device to synchronously press when shearing motion is carried out downwards; the method is characterized in that:

the breaking and shearing device consists of a frame, a tool rest, an eccentric shaft, a motor, a sliding block, a left wedge block, a right wedge block, a wear-resisting plate, an upper shearing edge and a lower shearing edge; the upper and lower upper shearing blades are respectively fixed on the tool rest and the frame, the eccentric shaft is driven by the motor to rotate, and the eccentric shaft drives the slide block to move left and right and simultaneously drives the tool rest to move up and down to complete shearing movement;

the multi-flexible pinch device consists of an upper guide roller, a lower guide roller, a roller driving motor, a chain wheel, a chain, an upper idler wheel set, a lower idler wheel set, an upper guide roller frame, a lower guide roller frame, a supporting screw, a tension spring, a rack, a gear and a gear connecting shaft; wherein, the roller driving motor fixed on the lower guide roller frame drives the lower guide roller to rotate after the speed is reduced by the speed reducer, and the lower guide roller are transited through the lower idle pulley group; the driving torque of the roller driving motor is transmitted to the upper guide roller through a chain wheel fixed on the lower idler wheel set and a chain, and the same transition mode is adopted for the upper guide roller, and the same rotating direction of the upper guide roller is ensured through the upper idler wheel set; the upper guide roller, the lower guide roller, the upper idler wheel and the lower idler wheel are respectively arranged on the upper guide roller frame and the lower guide roller frame, and the rotating directions of the upper guide roller and the lower guide roller are opposite; the upper guide roller frame is hinged on the support frame, the whole upper guide roller frame can rotate around a hinged point, the distance between the upper guide roller and the lower guide roller is adjusted by the left side supporting screw and the right side supporting screw, and a tension spring is arranged at the plate outlet;

the synchronous pressing device comprises a lifting lug, a steel wire guide cable, a rail wheel, a spring group, a pressure spring and a lever type pressing frame; the lifting lug is fixed on the tool rest and connected with the steel wire guide cable, the steel wire guide cable is connected with the spring set after bypassing the rail wheel, the spring set drives the lever type pressing frame to rotate anticlockwise to press the plate, and the return stroke of the lever type pressing frame is realized by the pressure of the pressure spring.

2. The novel precision steel plate shearing machine with the clamping and pressing device as claimed in claim 1, is characterized in that: in the breaking and shearing device, the clearance between the left side and the right side of the tool rest is adjusted through the compression amount of the right wedge block.

3. The novel precision steel plate shearing machine with the clamping and pressing device as claimed in claim 1, is characterized in that: the upper guide roller frame in the multi-flexible pinch device integrally rotates around a hinged point, the distance between the upper guide roller and the lower guide roller is adjusted through the left side supporting screw and the right side supporting screw, a certain inclination angle is kept, and a tension spring is arranged at a plate outlet to adjust pressing force between the upper guide rail and the lower guide rail.

4. The novel precision steel plate shearing machine with the clamping and pressing device as claimed in claim 1, is characterized in that: among many flexible pinch units, the deflector roll rotation under the drive roll motor drives, realizes the switching-over between the idler through lower idler group, and the moment of going up the sprocket of lower idler group transmits the deflector roll for through the chain, goes up the deflector roll and adopts the switching-over mode the same with lower idler group.

5. The novel precision shearing machine for the steel plates with the clamping and pressing devices as claimed in claim 1 or 3, is characterized in that: the inclination angle range between the upper guide roller and the lower guide roller is 0-30 degrees.

6. The novel precision steel plate shearing machine with the clamping and pressing device as claimed in claim 1, is characterized in that: the stroke of the lever type pressing frame in the synchronous pressing device is shorter than that of the tool rest.

7. The novel precision steel plate shearing machine with the clamping and pressing device as claimed in claim 1, is characterized in that: in the synchronous pressing device, the pressing force of the lever type pressing frame is adjusted through the pre-tightening amount of the spring group.