A shearing device for galvanized steel sheet

Abstract

The present invention relates to the technical field of steel plate shearing, and specifically to a shearing device for galvanized steel plates; it comprises a base, a slide groove is provided at the upper end of the base; two support plates are slidably connected in the slide groove; a screw is rotatably connected in the slide groove; the threads at both ends of the screw are arranged oppositely; the two support plates are spirally connected at both ends of the screw; the present invention arranges a connecting plate so that the cutter disc can be installed in the connecting groove of the connecting plate, and by increasing the number of cutter discs installed on the connecting plate, the number of steel strip coils that undergo synchronous trimming is increased, so that the shearing efficiency of the disc shearing machine is improved, thereby meeting the production demand for large quantities of galvanized steel strips in peak seasons; there is no need to purchase multiple disc shearing machines for shearing large quantities of galvanized steel strips, which not only reduces the production cost of the galvanized steel strips, but also reduces the cost of regular maintenance and upkeep of idle disc shearing machines, so that the practical application effect of the present invention is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel plate shearing processing, in particular to a shearing device for galvanized steel plates. Background Art

[0002] Galvanized steel sheet is a metal material coated with a layer of zinc on the steel sheet; this layer of zinc can effectively prevent the surface of the steel sheet from being corroded and prolong the service life of the steel sheet; galvanized steel sheet is mainly used to manufacture building structures, vehicle shells, household appliance shells, etc. Among them, galvanized steel sheet can be used to manufacture water supply tanks in building water supply systems. Since the surface of the galvanized steel sheet has a dense zinc coating, the water supply tank made of galvanized steel sheet can effectively resist the erosion of corrosive gases or liquids, thereby prolonging the service life of the water supply tank;

[0003] The production steps of galvanized steel sheet are to coat the surface of cold-rolled or hot-rolled steel strip with a layer of zinc metal material, and then use a disc shear to cut the unqualified parts on both sides of the galvanized steel strip to ensure the uniform width of the entire steel strip and improve the accuracy of the steel strip width; then cut the sheared steel strip to length according to the designed size to obtain the galvanized steel sheet of the required size;

[0004] Since galvanized steel sheets are mainly used in the fields of construction, automobiles, and home appliances, and the second half of each year is often the peak season for the construction industry, the demand for strip steel will increase significantly. However, existing disc shears can usually only process one roll of strip steel and cannot achieve synchronous shearing of multiple rolls of strip steel, which limits the efficiency of disc shears in shearing strip steel. If multiple disc shears are purchased to shear large quantities of galvanized strip steel, although it can meet the temporary production demand for galvanized strip steel, it will also increase the production cost of galvanized strip steel. In addition, in the off-season, the demand for galvanized strip steel decreases, and the multiple disc shears purchased will be idle in large quantities. The idle multiple disc shears need regular maintenance and maintenance, which greatly increases the maintenance cost.

[0005] In view of this, in order to overcome the above technical problems, the present invention proposes a shearing device for galvanized steel plates, which solves the above technical problems. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art, the present invention proposes a shearing device for galvanized steel plates. The present invention arranges a connecting plate so that the cutter disc can be installed in the connecting groove of the connecting plate. By increasing the number of cutter discs installed on the connecting plate, the number of steel strip coils that undergo synchronous edge trimming is increased, thereby improving the shearing efficiency of the disc shearing machine, thereby meeting the production needs of large quantities of galvanized steel strips during the peak season. There is no need to purchase multiple disc shearing machines for shearing large quantities of galvanized steel strips, which not only reduces the production cost of the galvanized steel strips, but also reduces the cost of regular maintenance and upkeep of idle disc shearing machines, thereby effectively improving the practical application effect of the present invention.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a shearing device for galvanized steel plates according to the present invention comprises:

[0008] A base, wherein a slide groove is provided at the upper end of the base; two support plates are slidably connected in the slide groove; a screw is rotatably connected in the slide groove; the threads at both ends of the screw are arranged oppositely; the two support plates are spirally connected to the two ends of the screw; a drive motor is fixedly installed on one side of the base; the drive motor is used to drive the screw to rotate, and further comprises:

[0009] The mounting plate is fixedly mounted on the upper end of the support plate; a cutter disc is mounted on one side of the mounting plate; a mounting groove is provided on one side of the mounting plate; a connecting plate is slidably connected in the mounting groove; the cutter disc comprises an upper cutter disc and a lower cutter disc; the lower cutter disc is rotatably connected to the mounting plate; the upper cutter disc is rotatably connected to the connecting plate; a servo motor is fixedly mounted inside the mounting plate; a bevel gear ring is fixedly connected to the surface of the output shaft of the servo motor; a bevel gear shaft is fixedly connected to one end of the lower cutter disc close to the servo motor; the bevel gear ring is meshed with the bevel gear shaft; a connecting groove is provided on the side wall of the connecting plate; the connecting groove is used to mount the cutter disc;

[0010] A transmission unit is installed inside the connecting plate; the servo motor drives the cutter head connected to the connecting plate to rotate through the transmission unit; a hydraulic push rod is fixedly installed in the mounting groove; one end of the hydraulic push rod is fixedly connected to the bottom of the mounting groove, and the other end is fixedly connected to the connecting plate;

[0011] A fixing unit is installed in the connecting groove; the fixing unit is used to fix the cutter disc in the connecting groove.

[0012] Preferably, the fixing unit includes a fixing rod; a fixing groove is provided at the bottom of the connecting groove; the fixing rod is rotatably installed in the fixing groove; a fixing spring is fixedly connected to the bottom of the fixing groove; the fixing spring is rotatably connected to the fixing rod at one end away from the fixing groove; an electromagnetic sheet is inlaid at the bottom of the fixing groove; a square groove cooperating with the fixing rod is provided at one end of the cutter disc installed in the connecting groove close to the connecting groove.

[0013] Preferably, the transmission unit includes a gear rod; a rectangular groove is provided at the output end of the servo motor; the end of the gear rod close to the servo motor is set to a rectangle; a connecting gear is fixedly connected to the end of the upper cutter disc close to the gear rod; the connecting gear and the gear rod are meshed with a transmission gear; a bevel gear ring is fixedly connected to the upper end of the gear rod; and a driving gear meshed with the bevel gear ring is fixedly connected to the end of the fixing rod close to the bottom of the fixing groove.

[0014] Preferably, there are two connecting grooves; the two connecting grooves are respectively opened on the two side walls facing the connecting plate; the two connecting grooves are distributed up and down; the lower cutter disc is rotatably connected in the lower connecting groove; the upper cutter disc is rotatably connected in the upper connecting groove; the driving gear is fixedly connected to the fixing rod in the lower connecting groove;

[0015] Two spur gears are installed in the connecting plate; one of the spur gears is fixedly connected to the upper cutter disc rotatably connected to one side of the connecting plate; the other spur gear is fixedly connected to the fixed rod in the upper connecting groove; a transmission belt is rotatably connected inside the connecting plate; an engagement groove is provided on the inner ring wall of the transmission belt.

[0016] Preferably, a positioning groove is provided on the inner wall of the connecting groove; a positioning rod is slidably connected in the positioning groove; a corrugated airbag is fixedly installed on the lower end of the connecting plate; an air hole is provided inside the connecting plate; one end of the air hole is connected to the positioning groove, and the other end is connected to the corrugated airbag; a return spring is installed in the corrugated airbag.

[0017] Preferably, an annular groove is provided on the surface of the upper blade disc and the lower blade disc; a blade and two rubber rings are rotatably connected in the annular groove; the blade is located between the two rubber rings; a bolt hole is provided on the inner wall of the annular groove; and connecting holes that are opposite to the bolt hole are provided on the rubber ring and the surface of the blade.

[0018] Preferably, the outer ring wall of the rubber ring is provided with a V-shaped groove; and the rubber ring is made of fluororubber material.

[0019] Preferably, a corrugated plate is slidably connected in the slide groove; two ends of the corrugated plate are respectively fixedly connected to two mounting plates; and the corrugated plate is made of PTFE material.

[0020] The beneficial effects of the present invention are as follows:

[0021] The present invention sets a connecting plate so that the cutter disc can be installed in the connecting groove of the connecting plate. By increasing the number of cutter discs installed on the connecting plate, the number of steel strip coils that are synchronously trimmed is increased, so that the shearing efficiency of the disc shearing machine is improved, thereby meeting the production demand for large quantities of galvanized steel strips in the peak season; there is no need to purchase multiple disc shearing machines for shearing large quantities of galvanized steel strips, which not only reduces the production cost of galvanized steel strips, but also reduces the cost of regular maintenance and upkeep of idle disc shearing machines, so that the practical application effect of the present invention is effectively improved. The present invention sets a positioning rod so that the positioning rod can extend out of the positioning groove under the push of hydraulic oil and the cutter disc is positioned in the connecting groove, so that the positioning rod can generate a driving force on the cutter disc, so that the cutter disc is stabilized in the connecting groove, and the mechanical structure of the vibration and displacement generated by the cutter disc during the shearing process is reduced; the uneven shearing edge of the galvanized steel strip is avoided, thereby improving the shearing effect and shearing quality of the cutter disc on the galvanized steel strip, so that the practicality of the present invention is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Figure 1 is a stereogram of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the mounting plate used in the present invention;

[0025] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0026] Figure 4 It is a schematic diagram of the structure of the connecting plate used in the present invention;

[0027] Figure 5 yes Figure 4 The enlarged view of point B in the middle;

[0028] Figure 6 yes Figure 4 Enlarged view of point C in the middle;

[0029] Figure 7 It is a schematic diagram of the structure of the cutter disc installed in the connecting groove in the present invention;

[0030] Figure 8 It is a transmission schematic diagram of the present invention;

[0031] In the figure: 1, base; 11, slide; 12, support plate; 121, screw; 13, drive motor; 14, corrugated plate; 2, mounting plate; 21, mounting groove; 211, connecting plate; 212, upper cutter disc; 213, lower cutter disc; 214, hydraulic push rod; 215, square groove; 22, servo motor; 221, bevel gear ring; 222, bevel gear shaft; 223, rectangular groove; 23, connecting groove; 24, fixing groove; 241, fixing rod; 242. fixing spring; 243. electromagnetic sheet; 25. gear rod; 251. connecting gear; 252. transmission gear; 253. bevel gear ring; 254. driving gear; 26. spur gear; 261. transmission belt; 262. meshing groove; 27. positioning groove; 271. positioning rod; 28. corrugated airbag; 281. air hole; 282. return spring; 29. ​​annular groove; 291. rubber ring; 292. bolt hole; 293. V-shaped groove. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figures 1 to 8 As shown, a shearing device for galvanized steel plates according to the present invention comprises:

[0034] A base 1, wherein a slide groove 11 is provided at the upper end of the base 1; two support plates 12 are slidably connected in the slide groove 11; a screw rod 121 is rotatably connected in the slide groove 11; the threads at both ends of the screw rod 121 are arranged oppositely; the two support plates 12 are spirally connected to the two ends of the screw rod 121; a drive motor 13 is fixedly installed on one side of the base 1; the drive motor 13 is used to drive the screw rod 121 to rotate, and further comprises:

[0035] The mounting plate 2 is fixedly mounted on the upper end of the support plate 12; a cutter disc is mounted on one side of the mounting plate 2; a mounting groove 21 is provided on one side of the mounting plate 2; a connecting plate 211 is slidably connected in the mounting groove 21; the cutter disc comprises an upper cutter disc 212 and a lower cutter disc 213; the lower cutter disc 213 is rotatably connected to the mounting plate 2; the upper cutter disc 212 is rotatably connected to the connecting plate 211; a servo motor 22 is fixedly mounted inside the mounting plate 2; a bevel gear ring 221 is fixedly connected to the output shaft surface of the servo motor 22; a bevel gear shaft 222 is fixedly connected to the end of the lower cutter disc 213 close to the servo motor 22; the bevel gear ring 221 is meshed with the bevel gear shaft 222; a connecting groove 23 is provided on the side wall of the connecting plate 211; the connecting groove 23 is used to mount the cutter disc;

[0036] A transmission unit, the transmission unit is installed inside the connecting plate 211; the servo motor 22 drives the cutter head connected to the connecting plate 211 to rotate through the transmission unit; a hydraulic push rod 214 is fixedly installed in the mounting groove 21; one end of the hydraulic push rod 214 is fixedly connected to the bottom of the mounting groove 21, and the other end is fixedly connected to the connecting plate 211;

[0037] A fixing unit is installed in the connecting groove 23 ; the fixing unit is used to fix the cutter disc in the connecting groove 23 .

[0038] As an embodiment of the present invention, the fixing unit includes a fixing rod 241; a fixing groove 24 is provided at the bottom of the connecting groove 23; the fixing rod 241 is rotatably installed in the fixing groove 24; a fixing spring 242 is fixedly connected to the bottom of the fixing groove 24; the fixing spring 242 is rotatably connected to the fixing rod 241 at one end away from the fixing groove 24; an electromagnetic sheet 243 is inlaid at the bottom of the fixing groove 24; a square groove 215 cooperating with the fixing rod 241 is provided at one end of the cutter disc installed in the connecting groove 23 close to the connecting groove 23.

[0039] As an embodiment of the present invention, the transmission unit includes a gear rod 25; a rectangular groove 223 is provided at the output end of the servo motor 22; the end of the gear rod 25 close to the servo motor 22 is set to a rectangle; a connecting gear 251 is fixedly connected to the end of the upper cutter disc 212 close to the gear rod 25; the connecting gear 251 and the gear rod 25 are meshed and transmitted through a transmission gear 252; a bevel gear ring 253 is fixedly connected to the upper end of the gear rod 25; and a driving gear 254 meshing with the bevel gear ring 253 is fixedly connected to the end of the fixed rod 241 close to the bottom of the fixed groove 24.

[0040] As an embodiment of the present invention, two connecting grooves 23 are provided; the two connecting grooves 23 are respectively opened on the two side walls facing the connecting plate 211; the two connecting grooves 23 are distributed up and down; the lower blade disc 213 is rotatably connected in the lower connecting groove 23; the upper blade disc 212 is rotatably connected in the upper connecting groove 23; the driving gear 254 is fixedly connected to the fixing rod 241 in the lower connecting groove 23;

[0041] Two spur gears 26 are installed in the connecting plate 211; one of the spur gears 26 is fixedly connected to the upper cutter disc 212 rotatably connected to one side of the connecting plate 211; the other spur gear 26 is fixedly connected to the fixing rod 241 in the upper connecting groove 23; a transmission belt 261 is rotatably connected inside the connecting plate 211; an engagement groove 262 is provided on the inner ring wall of the transmission belt 261.

[0042] As an embodiment of the present invention, a positioning groove 27 is provided on the inner wall of the connecting groove 23; a positioning rod 271 is slidably connected in the positioning groove 27; a corrugated airbag 28 is fixedly installed at the lower end of the connecting plate 211; an air hole 281 is provided inside the connecting plate 211; one end of the air hole 281 is connected to the positioning groove 27, and the other end is connected to the corrugated airbag 28; a return spring 282 is installed in the corrugated airbag 28;

[0043] When working, galvanized steel sheets are mainly used in the fields of construction, automobiles and home appliances. The second half of each year is often the peak season for the construction industry, so the demand for strip steel will increase significantly. However, the existing disc shears can usually only process one roll of strip steel and cannot achieve synchronous shearing of multiple rolls of strip steel, which limits the efficiency of the disc shears in shearing strip steel. If multiple disc shears are purchased to shear large quantities of galvanized strip steel, although it can meet the temporary production demand of galvanized strip steel, it will also increase the production cost of galvanized strip steel. In addition, in the off-season, the demand for galvanized strip steel decreases, and the purchased multiple disc shears will be idle in large quantities. The idle multiple disc shears need regular maintenance and maintenance, which greatly increases the maintenance cost.

[0044] In this regard, the present invention sets a connecting plate 211 so that the cutter disc can be installed in the connecting groove 23 of the connecting plate 211. By increasing the number of cutter discs installed on the connecting plate 211, the number of steel strip coils that are synchronously trimmed is increased, so that the shearing efficiency of the disc shearing machine is improved, thereby meeting the production demand for large quantities of galvanized steel strips in the peak season; there is no need to purchase multiple disc shearing machines for shearing large quantities of galvanized steel strips, which not only reduces the production cost of galvanized steel strips, but also reduces the cost of regular maintenance and upkeep of idle disc shearing machines, so that the practical application effect of the present invention is effectively improved;

[0045] In the initial state, the mounting plate 2 is located in the mounting groove 21. At this time, the corrugated airbag 28 is in a compressed state. The corrugated airbag 28 is filled with hydraulic oil. When the corrugated airbag 28 is in the compressed state, the hydraulic oil in the corrugated airbag 28 flows into the positioning groove 27 through the air hole 281, so that the positioning rod 271 in the positioning groove 27 is pushed by the hydraulic oil and extends out of the positioning groove 27. At this time, only one upper cutter disc 212 is rotatably installed on one side of the connecting plate 211, and the upper cutter disc 212 on one side of the connecting plate 211 cooperates with the lower cutter disc 213 on one side of the mounting plate 2, that is, in the off-season, only two cutter discs are needed to shear a roll of galvanized steel strip, and the maintenance cost of idle cutter discs is much lower than the cost of regular maintenance and maintenance of idle disc shears, thereby The production cost of shearing galvanized steel strip is reduced; when the user shears a roll of galvanized steel strip, he only needs to pull one end of the steel strip between the two mounting plates 2, so that the steel strip is pulled to the upper cutter disc 212 of the connecting plate 211 and the lower cutter disc 213 of the mounting plate 2; at this time, the servo motor 22 is controlled to operate, so that the servo motor 22 can drive the bevel gear shaft 222 to rotate through the bevel gear ring 221 fixedly connected to the surface of its output shaft, so that the bevel gear shaft 222 drives the lower cutter disc 213 rotatably connected to the mounting plate 2 to rotate synchronously; since a rectangular groove 223 is provided at the output end of the servo motor 22; when the connecting plate 211 contacts the bottom of the groove of the mounting groove 21, the connecting plate 211 will drive the gear rod 25 rotatably connected to it to be inserted into the rectangular groove 223, and at this time the gear rod 25 is in a connected state with the output shaft of the servo motor 22. Therefore, when the servo motor 22 rotates, the servo motor 22 can drive the gear 254 rod 25 to rotate, so that the gear rod 25 drives the connecting gear 251 to rotate through the transmission gear 252 meshing therewith, so that the upper cutter disc 212 rotatably connected to the connecting plate 211 rotates under the drive of the connecting gear 251; since the lower cutter disc 213 is directly meshed with the bevel gear ring 221 on the output shaft of the servo motor 22 through the bevel gear shaft 222, the servo motor 22 can directly drive the lower cutter disc 213 to rotate in the positive direction; although the gear rod 25 is connected to the output shaft of the servo motor 22, so that the gear rod 25 and the output shaft of the servo motor 22 rotate in the same direction, the gear rod 25 drives the connecting gear 251 to rotate through the transmission gear 252 meshing therewith. The wheel 252 drives the connecting gear 251 to rotate, and the connecting gear 251 rotates in the opposite direction under the drive of the gear rod 25, so that the connecting gear 251 drives the upper cutter disc 212 rotatably connected to the connecting plate 211 to rotate in the opposite direction, so that the upper cutter disc 212 rotatably connected to the connecting plate 211 and the lower cutter disc 213 rotatably connected to the mounting plate 2 rotate in opposite directions, so that the upper cutter disc 212 rotatably connected to the connecting plate 211 and the lower cutter disc 213 rotatably connected to the mounting plate 2 rotate in the direction of approaching each other, and the galvanized steel strip is stretched from the side where the two cutter discs are close to each other to between the two cutter discs, so that the two rotating cutter discs can shear both sides of the galvanized steel strip, and the width of the strip after shearing is the distance between the two cutter discs facing each other on the two mounting plates 2;The sheared strip can be directly pulled to the cutting machine, and the length of the galvanized strip can be cut according to the size requirements, so as to obtain the galvanized steel plate of the required length and width, and finally the galvanized steel plate can be assembled into the water tank required for water supply by welding; if the galvanized strip with smaller width is to be cut, it is only necessary to control the operation of the drive motor 13 so that the drive motor 13 can drive the screw 121 to rotate, so that the screw 121 can drive the mounting plates 2 connected by the spiral transmission at both ends to move towards each other, so that the two mounting plates 2 can drive the connected cutter discs to approach each other, so that the distance between the cutter discs on the two mounting plates 2 is reduced; when the distance between the cutter discs on the two mounting plates 2 meets the design width of the cutter discs, the galvanized strip with smaller width can be sheared, so that the present invention can shear strips of different widths, thereby effectively improving the practical application scope of the present invention;

[0046] During the peak season of galvanized strip steel production, the user needs to increase the number of cutter discs installed on the connecting plate 211, that is, to install cutter discs in the two connecting grooves 23. At this time, the user first controls the extension of the hydraulic push rod 214 so that the hydraulic push rod 214 can push the connecting plate 211 to extend in a direction away from the bottom of the installation groove 21. In the process of the connecting plate 211 extending out of the installation groove 21, the connecting plate 211 will drive the corrugated airbag 28 to rise synchronously; since a return spring 282 is installed in the corrugated airbag 28, when the corrugated airbag 28 is compressed, the return spring 282 is also in a compressed state. Therefore, when the connecting plate 211 drives the corrugated airbag 28 to rise, the return spring 282 in the corrugated airbag 28 extends under the action of its own restoring force. , so that the extended return spring 282 can push the corrugated airbag 28 to extend, so that the space in the extended corrugated airbag 28 is increased; because the positioning groove 27 is connected to the corrugated airbag 28 through the air hole 281, the hydraulic oil in the positioning groove 27 flows back to the extended corrugated airbag 28 through the air hole 281; at this time, the hydraulic pressure in the positioning groove 27 drops to a negative pressure state, so that the positioning rod 271 in the positioning groove 27 is absorbed by the negative pressure and penetrates into the positioning groove 27; when the connecting plate 211 drives the connecting grooves 23 on both sides to fully extend out of the mounting groove 21, at this time, the user first controls the electromagnetic sheets 243 in the two fixing grooves 24 to be energized, so that the electromagnetic sheets 243 can absorb the fixing rod 241 and squeeze the fixing spring 242 to enter The user pushes the lower blade disc 213 into the lower connecting groove 23, and the upper blade disc 212 into the upper connecting groove 23. At this time, the square groove 215 of the upper blade disc 212 and the lower blade disc 213 near the bottom of the connecting groove 23 is directly opposite to the fixing rod 241 in the fixing groove 24. Then, the electromagnetic sheet 243 is controlled to be de-energized, so that the fixing rod 241 extends out of the fixing groove 24 and extends into the connecting groove 23 under the push of the restoring force of the fixing spring 242. Since the upper blade disc 212 and the lower blade disc 213 with the square groove 215 are installed in the two connecting grooves 23 distributed above and below, the fixing rod 241 in the two fixing grooves 24 is directly opposite to the fixing rod 241 in the fixing groove 24. The fixed rod 241 can be inserted into the square groove 215 at one end of the upper cutter disc 212 and the lower cutter disc 213 respectively, so that the upper cutter disc 212 and the lower cutter disc 213 in the two connecting grooves 23 are connected to the fixed rod 241 in the connecting groove 23; then the hydraulic push rod 214 is controlled to contract, so that the hydraulic push rod 214 pulls the connecting plate 211 to descend, so that the connecting plate 211 drives the cutter discs in the two connecting grooves 23 to descend synchronously, until the connecting plate 211 drives the corrugated airbag 28 at the lower end to contact the bottom of the installation groove 21; as the hydraulic push rod 214 pulls the connecting plate 211 to continue to descend, the descending corrugated airbag 28 is squeezed by the connecting plate 211 and the installation plate 2, so that the corrugated airbag 28 is compressed;The return spring 282 in the corrugated airbag 28 is compressed, so that the hydraulic oil in the corrugated airbag 28 flows into the positioning groove 27 through the air hole 281, so that the positioning rod 271 in the positioning groove 27 can be pushed out of the positioning groove 27 by the hydraulic oil, until the positioning rod 271 extending out of the positioning groove 27 contacts the cutter disc rotatably connected in the connecting groove 23, and the cutter disc and the positioning rod 271 are in rolling contact; when the cutter disc shears the galvanized steel strip, the cutter disc will vibrate due to the shearing impact; when the cutter disc vibrates, it is easy to cause the galvanized steel strip to break. The uneven shearing edge affects the shearing quality. In this regard, the present invention sets a positioning rod 271 so that the positioning rod 271 can extend out of the positioning groove 27 under the push of hydraulic oil and position the cutter disc in the connecting groove 23, so that the positioning rod 271 can generate a driving force on the cutter disc, so that the cutter disc is stabilized in the connecting groove 23, and the vibration and displacement of the cutter disc during the shearing process are reduced; the uneven shearing edge of the galvanized strip is avoided, thereby improving the shearing effect and shearing quality of the cutter disc on the galvanized strip, so that the practicality of the present invention is further improved;

[0047] Since the servo motor 22 directly drives the lower cutter disc 213 installed on the mounting plate 2 to rotate, the lower cutter disc 213 is driven by the servo motor 22 to rotate forward. At this time, the lower cutter disc 213 installed on the connecting plate 211 rotates in the opposite direction under the drive of the gear rod 25 and the transmission gear 252. In order to achieve the shearing effect, it is necessary to ensure that the lower cutter disc 213 located in the lower connecting groove 23 rotates in the opposite direction to the upper cutter disc 212 rotatably connected to the mounting plate 2, that is, the lower cutter disc 213 located in the lower connecting groove 23 rotates in the same direction as the lower cutter disc 213 rotatably connected to one side of the mounting plate 2. To this end, the present invention is provided by The upper end of the bevel gear ring 253 is fixedly connected to the upper end of the gear rod 25; when the fixing rod 241 in the fixing groove 24 below extends out of the fixing groove 24, the fixing rod 241 drives the driving gear 254 to approach the bevel gear ring 253 until the fixing rod 241 is inserted into the square groove 215, at which time the driving gear 254 is meshed with the bevel gear ring 253; when the gear rod 25 rotates, the gear rod 25 drives the bevel gear ring 253 to rotate synchronously, so that the bevel gear ring 253 directly drives the fixing rod 241 through the driving gear 254 to drive the lower cutter disc 213 in the lower connecting groove 23 to rotate forward, thereby realizing the lower cutter disc 213 in the connecting groove 23 3 rotates in the opposite direction to the upper cutter disc 212 rotatably mounted on the connecting plate 211; and the upper cutter disc 212 located in the upper connecting groove 23 rotates in the opposite direction to the lower cutter disc 213 located in the lower connecting groove 23, that is, the lower cutter disc 213 located in the upper connecting groove 23 needs to rotate in the same direction as the upper cutter disc 212 directly rotatably connected to one side of the connecting plate 211; for this purpose, two spur gears 26 are provided, one of which is fixedly connected to the upper cutter disc 212 rotatably connected to one side of the connecting plate 211; the other spur gear 26 is fixedly connected to the fixing rod 241 located in the upper connecting groove 23, and the transmission belt 261 is fixedly connected to the fixing rod 241 located in the upper connecting groove 23. The ring wall is provided with a meshing groove 262, so that the two spur gears 26 can be connected by belt transmission through the transmission belt 261; and the provision of the meshing groove 262 can increase the strength and effect of the mechanical transmission between the spur gear 26 and the transmission belt 261; and the transmission belt 261 is rotatably connected inside the connecting plate 211, so when the electromagnetic sheet 243 attracts the spur gear 26 to drive the fixing rod 241 located in the upper fixing groove 24 to enter the fixing groove 24, the spur gear 26 will squeeze the fixing spring 242 connected thereto and move away from the transmission belt 261, and at this time the transmission belt 261 is separated from the spur gear 26 located in the upper fixing groove 24;Since the transmission belt 261 is rotatably connected inside the connecting plate 211, the transmission belt 261 and the connecting plate 211 are in sliding contact, that is, the connecting plate 211 supports the transmission belt 261 to prevent the arc-shaped part of the transmission belt 261 from collapsing due to its own gravity, and ensures that the transmission belt 261 can maintain a good curvature, so that after the electromagnetic plate 243 is powered off, the spur gear 26 pushed by the fixed spring 242 can drive the surface teeth to quickly insert into the meshing groove 262 of the transmission belt 261, so that the reset spur gear 26 can maintain meshing with the transmission belt 261, so that the two spur gears 26 drive the two upper cutter discs 212 installed at the top and bottom of the connecting plate 211 to rotate synchronously through the transmission belt 261, thereby ensuring that the cutter discs in the two connecting grooves 23 rotate in the opposite direction, so that the cutter discs in the two connecting grooves 23 can effectively shear. ;

[0048] As an embodiment of the present invention, an annular groove 29 is provided on the surface of the upper blade disc 212 and the lower blade disc 213; a blade and two rubber rings 291 are rotatably connected in the annular groove 29; the blade is located between the two rubber rings 291; a bolt hole 292 is provided on the inner wall of the annular groove 29; and connecting holes that are opposite to the bolt hole 292 are provided on the rubber ring 291 and the surface of the blade.

[0049] As an embodiment of the present invention, a V-shaped groove 293 is formed on the outer ring wall of the rubber ring 291; the rubber ring 291 is made of fluororubber material.

[0050] As an embodiment of the present invention, a corrugated plate 14 is slidably connected in the slide groove 11; both ends of the corrugated plate 14 are respectively fixedly connected to two mounting plates 2; the corrugated plate 14 is made of PTFE material;

[0051] During operation, since the thickness of galvanized steel strips of different types are different, in order to enable the present invention to shear galvanized steel strips of different thicknesses, the present invention sets a rubber ring 291; since the galvanized steel strip passes between the two cutter discs, the two cutter discs clamp and position the galvanized steel strip through the rubber ring 291, the user changes the distance between the rubber rings 291 between the two adjacent cutter discs by replacing the rubber rings 291 of different diameters, so that the rubber rings 291 between the two adjacent cutter discs can clamp the galvanized steel strips of different thicknesses, so that the galvanized steel strips of different thicknesses can be stably sheared between the two cutter discs, thereby improving the shearing efficiency of galvanized steel strips of different thicknesses. The cutting quality is improved, so that the practicality of the present invention is effectively improved; when the user needs to replace the rubber ring 291, he only needs to turn the bolt so that the bolt rotates and extends out of the bolt hole 292; then the user can remove the rubber ring 291 that clamps the blade, and then replace the rubber ring 291 with the required diameter size; finally, the bolt is inserted into the connection hole between the new rubber ring 291 and the surface of the blade, and the bolt is turned so that the bolt drives the rubber ring 291 and the blade to be tightened on the blade shaft; by providing the outer ring wall of the rubber ring 291 with a V-shaped groove 293, the V-shaped groove 293 can increase the wear groove coefficient on the surface of the rubber ring 291, so that the friction between the rubber ring 291 and the galvanized steel strip is increased. The rubber ring 291 is large, thereby improving the pushing effect of the rubber ring 291 on the galvanized steel strip, so that the sheared galvanized steel strip drives the unsheared part at the rear to move toward the blade, so that the blade can effectively and stably shear the galvanized steel strip; thereby improving the shearing effect and shearing quality of the cutter disc on the galvanized steel strip, and setting the rubber ring 291 to be made of fluororubber material, so that the rubber ring 291 can have good wear resistance, thereby increasing the service life of the rubber ring 291; so that the practicality of the present invention is improved; and the corrugated plate 14 is set to ensure that the corrugated plate 14 can block the chute 11, to prevent the debris dropped by the shearing of the galvanized steel strip from falling into the chute 11, and to prevent it from falling into the slide The debris in the groove 11 falls onto the surface of the screw 121, resulting in an increase in the friction between the screw 121 and the mounting plate 2, thereby preventing the spiral transmission connection between the screw 121 and the mounting plate 2 from being worn, thereby increasing the service life of the screw 121 and the mounting plate 2; and the corrugated plate 14 is made of PTFE material, so that the corrugated plate 14 has a smooth surface, which prevents the debris dropped by the shearing of the galvanized strip from adhering to the surface of the corrugated plate 14, greatly reducing the difficulty of cleaning the debris that falls on the surface of the corrugated plate 14, thereby facilitating the user to clean the debris that falls on the surface of the corrugated plate 14, thereby reducing the labor intensity of the user, and further improving the practicality of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A shearing device for galvanized steel sheet, comprising: A base (1), wherein a slide groove (11) is provided at the upper end of the base (1); two support plates (12) are slidably connected in the slide groove (11); a screw rod (121) is rotatably connected in the slide groove (11); the threads at both ends of the screw rod (121) are arranged oppositely; the two support plates (12) are spirally connected to the two ends of the screw rod (121); a driving motor (13) is fixedly installed on one side of the base (1); the driving motor (13) is used to drive the screw rod (121) to rotate, and is characterized in that: A mounting plate (2), the mounting plate (2) being fixedly mounted on the upper end of the support plate (12); a cutter disc is mounted on one side of the mounting plate (2); a mounting groove (21) is provided on one side of the mounting plate (2); a connecting plate (211) is slidably connected in the mounting groove (21); the cutter disc comprises an upper cutter disc (212) and a lower cutter disc (213); the lower cutter disc (213) is rotatably connected to the mounting plate (2); the upper cutter disc (212) and the connecting plate (211) Rotationally connected; a servo motor (22) is fixedly installed inside the mounting plate (2); a bevel gear ring (221) is fixedly connected to the surface of the output shaft of the servo motor (22); a bevel gear shaft (222) is fixedly connected to one end of the lower cutter disc (213) close to the servo motor (22); the bevel gear ring (221) is meshed with the bevel gear shaft (222); a connecting groove (23) is provided on the side wall of the connecting plate (211); the connecting groove (23) is used to install the cutter disc; A transmission unit, the transmission unit being installed inside the connecting plate (211); the servo motor (22) drives the cutter head connected to the connecting plate (211) to rotate through the transmission unit; a hydraulic push rod (214) is fixedly installed in the installation groove (21); one end of the hydraulic push rod (214) is fixedly connected to the bottom of the installation groove (21), and the other end is fixedly connected to the connecting plate (211); The bottom of the connecting groove (23) is provided with a fixing groove (24); a fixing rod (241) is rotatably installed in the fixing groove (24); a fixing spring (242) is fixedly connected to the bottom of the fixing groove (24); one end of the fixing spring (242) away from the fixing groove (24) is rotatably connected to the fixing rod (241); an electromagnetic sheet (243) is embedded in the bottom of the fixing groove (24); a square groove (215) cooperating with the fixing rod (241) is provided on one end of the cutter head installed in the connecting groove (23) close to the connecting groove (23); The inner wall of the connecting groove (23) is provided with a positioning groove (27); a positioning rod (271) is slidably connected in the positioning groove (27); a corrugated airbag (28) is fixedly installed at the lower end of the connecting plate (211); an air hole (281) is provided inside the connecting plate (211); one end of the air hole (281) is connected to the positioning groove (27), and the other end is connected to the corrugated airbag (28); a return spring (282) is installed in the corrugated airbag (28).

2. A shearing device for galvanized steel sheet according to claim 1, characterized in that: The transmission unit comprises a gear rod (25); a rectangular groove (223) is provided at the output end of the servo motor (22); an end of the gear rod (25) close to the servo motor (22) is arranged in a rectangular shape; an end of the upper cutter disc (212) close to the gear rod (25) is fixedly connected to a connecting gear (251); the connecting gear (251) and the gear rod (25) are meshed and transmitted via a transmission gear (252); a bevel gear ring (253) is fixedly connected to the upper end of the gear rod (25); and an end of the fixing rod (241) close to the bottom of the fixing groove (24) is fixedly connected to a driving gear (254) meshed with the bevel gear ring (253).

3. A shearing device for galvanized steel sheet according to claim 2, characterized in that: Two connecting grooves (23) are provided; the two connecting grooves (23) are respectively opened on the two side walls directly facing the connecting plate (211); the two connecting grooves (23) are distributed up and down; a lower cutter disc (213) is rotatably connected in the lower connecting groove (23); an upper cutter disc (212) is rotatably connected in the upper connecting groove (23); the driving gear (254) is fixedly connected to a fixing rod (241) in the lower connecting groove (23); Two spur gears (26) are installed in the connecting plate (211); one of the spur gears (26) is fixedly connected to an upper cutter disc (212) rotatably connected to one side of the connecting plate (211); the other spur gear (26) is fixedly connected to a fixing rod (241) located in an upper connecting groove (23); a transmission belt (261) is rotatably connected inside the connecting plate (211); and an inner ring wall of the transmission belt (261) is provided with an engagement groove (262).

4. A shearing device for galvanized steel sheet according to claim 3, characterized in that: The upper blade disc (212) and the lower blade disc (213) are both provided with an annular groove (29) on their surfaces; a blade and two rubber rings (291) are rotatably connected in the annular groove (29); the blade is located between the two rubber rings (291); a bolt hole (292) is provided on the inner wall of the annular groove (29); and connection holes that are directly opposite to the bolt hole (292) are provided on the rubber ring (291) and the blade surface.

5. A shearing device for galvanized steel sheet according to claim 4, characterized in that: The outer ring wall of the rubber ring (291) is provided with a V-shaped groove (293); the rubber ring (291) is made of fluororubber material.

6. A shearing device for galvanized steel sheet according to claim 5, characterized in that: A corrugated plate (14) is slidably connected in the slide groove (11); two ends of the corrugated plate (14) are respectively fixedly connected to two mounting plates (2); and the corrugated plate (14) is made of PTFE material.

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