Transverse cutting and stacking device for silicon steel sheets

Abstract

The invention discloses a transverse cutting and stacking device for silicon steel sheets, and belongs to the technical field of transformers. Comprising a transverse cutting structure, a material distributing and conveying structure, a stepping lifting structure, a stacking structure and transfer structures, the two transfer structures are arranged on the stepping lifting structure side by side up and down, the stepping lifting structure can do stepping motion in the vertical direction, and the distance of each stepping motion is the thickness of a silicon steel sheet; the two transferring structures are arranged right behind the two material distributing conveying belts correspondingly. Each transferring structure comprises a lower sliding plate, an upper driving arm, a guiding strip, a support, two driving wheels, two driven wheels, a pneumatic pressing plate and an air blowing pipe at the rear end of the lower sliding plate. The rear end of the distributing conveying belt is always located between the front end of the lower sliding plate and the front end of the guide strip. Transferring and conveying are carried out through the flexibility of the silicon steel sheets, so that it is guaranteed that the transferring structure can convey the silicon steel sheets backwards when moving up and down; during stacking, the distance between the transfer structure and the top of the steel sheet stack is equal all the time, and meanwhile through the arrangement of the guide strip and the air blowing pipe, stacking is neat, and the structure is simple.

Description

Technical Field

[0001] The invention belongs to the technical field of transformers, and in particular relates to a cross-cutting and stacking device for silicon steel sheets. Background Art

[0002] Silicon steel sheet is a kind of soft magnetic alloy of ferrosilicon with extremely low carbon content, which is mainly used to make the iron core of motors, generators and transformers. There are round holes or round grooves on the silicon steel sheet, and V-shaped cuts are also arranged in it. In the prior art, the cross-cutting device of the silicon steel sheet can be used to realize the punching, V-shaped cut, cutting and stacking of the silicon steel sheet, and the silicon steel sheet has a trapezoidal structure.

[0003] For example, the patent with application number CN201510699237.8 discloses a two-shear two-punch center-positioned shear-to-shear line, which includes, from right to left, an unwinder, a feeder, a punching machine, a shearing machine, a discharging machine, a material sorting machine and a stacking table; the discharging machine is arranged between the discharging port of the shearing machine and the feeding port of the material sorting machine, the discharging machine includes a discharging machine frame, the discharging machine frame is provided with a discharging machine motor, a fixed table and a telescopic table, the fixed table is arranged on the left section of the discharging machine frame, and the middle part of the fixed table is provided with There is a horizontal guide groove, the telescopic platform is arranged on the right section of the discharging machine frame, the left end of the discharging machine frame is provided with a left pulley, the right end of the telescopic platform is provided with a right pulley, a belt is wound around the left pulley and the right pulley, the output end of the discharging machine motor is provided with a motor pulley, the bottom of the telescopic platform is provided with a horizontal rack, the middle of the top of the left end of the discharging machine frame is provided with a gear, the gear cooperates with the rack, the gear is driven by a gear longitudinal shaft, and a handle is provided at the front end of the gear longitudinal shaft. During the stacking process, the height of the steel sheet stack gradually increases, resulting in uneven stacking.

[0004] For example, the patent with application number CN201921963251.4 discloses a transformer silicon steel sheet shearing and stacking machine, which includes a transverse shearing system for automatically shearing silicon steel sheets into required shapes; a conveying system for conveying the sheared silicon steel sheets, which has at least two layers of inclined conveying devices and a flap mechanism arranged at the front end of the inclined conveying device, and the conveying system is arranged at the discharge end of the material transport guide channel of the transverse shearing system; a reverse suction and material sorting system for reverse suction and transportation and precise positioning of the sheared silicon steel sheets, which has at least two upper and lower reverse suction and material sorting devices arranged in parallel, and one end of the reverse suction and material sorting device is arranged obliquely above the discharge end of the corresponding inclined conveying device; The stacking system is used to stack the sheared silicon steel sheets. The stacking system is provided with at least two groups, which are respectively distributed on both sides of the inclined conveying device and the reverse suction material sorting device. Each group of stacking systems corresponds to a reverse suction material sorting device. The stacking system has a stacking bracket, and the stacking bracket has at least 2 groups of initial positioning devices, at least 2 groups of fine positioning devices, at least 1 stacking table device, and at least 2 groups of outward conveying devices and at least 2 groups of stacking conveying devices; the initial positioning device extends into the position below the reverse suction material sorting device, and the fine positioning device is arranged in parallel on the side of the initial positioning device away from the reverse suction material sorting device. The fine positioning device performs fine positioning adjustment on the distance and parallelism of the sheet material conveyed by the initial positioning device, and the outward conveying device is arranged above the corresponding initial positioning device and the fine positioning device. The outward conveying device conveys the sheet material on the initial positioning device to the fine positioning device. A stacking table device is arranged between the fine positioning devices, and the stacking conveying device is arranged above the corresponding fine positioning device and the stacking table device.

[0005] The reverse suction material sorting device is composed of a servo control system, a plurality of magnetic clutch devices, a positioning device, and an auxiliary pressing device. The servo control system is electrically connected to the magnetic clutch device. The bottom of the auxiliary pressing device is connected to the positioning device. The positioning device is a positioning baffle. The bottom of the reverse suction material sorting device is provided with an opening for the positioning device to pass through. The initial positioning device includes an initial positioning displacement conveyor belt, which is installed on the top of the initial positioning bracket and is distributed at both ends of the stacking system. The initial positioning displacement conveyor belts extend into the position below the reverse suction material sorting device respectively, and the initial positioning displacement conveyor belt transports the sheet material to the side away from the reverse suction material sorting device.

[0006] The precision positioning device comprises a precision positioning bracket, and at least two groups of silicon steel sheet positioning modules are arranged on the precision positioning bracket, and the silicon steel sheet positioning modules include a bottom support plate, an intermediate fixing plate, and an adjusting plate; the top of the precision positioning bracket is connected to the bottom support plate through a linear guide rail, and an intermediate fixing plate located in the middle and adjustment plates located on both sides of the intermediate fixing plate are arranged above each bottom support plate; a silicon steel sheet positioning module is added between the two groups of silicon steel sheet positioning modules, and a bottom support plate located in the middle is installed on the precision positioning bracket, and a bottom plate driving motor arranged parallel to the bottom support plate is installed on the precision positioning bracket, and a rotating shaft driven by the bottom plate driving motor is connected to a bottom plate screw rod arranged vertically to the bottom support plate through a fan gear, and the bottom support plates located on both sides are connected to the bottom plate screw rod through nuts connected at the bottom, and the screw rod threads at the bottom of the bottom support plates located on both sides are set to be reversed, and a slider is arranged at the bottom of the bottom support plates located on both sides, and the slider slides horizontally on the linear guide rail, and the linear guide rail is arranged on the side of the bottom plate screw rod; The adjusting plate driving motor is installed on the side of the fine positioning bracket, and the adjusting plate driving motor drives the rotating shaft at the bottom of the adjusting plate to rotate through the belt, and the rotating shaft at the bottom of the adjusting plate drives the adjusting plate screw rods on both sides to rotate through the gear structure. The bottom of the adjusting plate is fixedly connected with a nut corresponding to the adjusting plate screw rod, and the bottom of the nut is fixedly connected with a moving block, and the moving block is matched with the slide rail provided on the bottom support plate, and the adjusting plate screw rod threads at the bottom of the two adjusting plates are set in opposite directions; a moving belt is provided at the end of the middle fixed plate, and the moving belt is installed above the bottom support plate. A magnet is provided inside, and the moving belt is driven to move by a rotating wheel at the bottom, and the rotating wheel is driven to rotate by a rotating rod, and the rotating rod is driven to rotate by a rotating rod driving motor installed on the bottom support plate through a belt and a pulley, and a limiting device is provided at the outer end of the moving belt; the limiting device includes a limit block and a limit block driving motor for driving the limit block to move, and the limit block driving motor is installed on the bottom support plate, and the limit block driving motor drives the limit block screw rod located at the bottom of the limit block to rotate through a belt and a pulley, and a nut corresponding to the limit block screw rod is fixedly connected to the bottom of the limit block.

[0007] In order to ensure neat stacking, this patent sets up a reverse suction material sorting device, an initial positioning device and a fine positioning device, and the structure is very complicated. Summary of the invention

[0008] In order to solve the above problems, the embodiment of the present invention provides a cross-cutting and stacking device for silicon steel sheets. This patent uses the flexibility of silicon steel sheets for transfer and transportation to ensure that the transfer structure can be transported backward when moving up and down; when stacking, the distance between the transfer structure and the top of the steel sheet stack is always equal. At the same time, the setting of the guide strip and the air blowing pipe makes the stacking neat and the structure simple. The technical solution is as follows: An embodiment of the present invention provides a cross-cutting and stacking device for silicon steel sheets, which includes a cross-cutting structure, a material-dividing and conveying structure, and a stacking structure arranged in sequence from front to back. The cross-cutting structure includes a cross-cutting and conveying mechanism arranged in the front-to-back direction and a punching mechanism, a V-shaped cutting mechanism, and a bevel cutting mechanism thereon. The material-dividing and conveying structure includes a frame, two material-dividing and conveying belts 1, and a material-dividing mechanism. The two material-dividing and conveying belts 1 are arranged obliquely downward from front to back and obliquely upward from front to back, respectively. The material-dividing mechanism is used to selectively convey the silicon steel sheets 2 output by the cross-cutting and conveying mechanism to the two material-dividing and conveying belts 1. The stacking structure includes a traveling vehicle capable of moving left and right and a plurality of placement units arranged side by side left and right thereon. The placement unit includes two stacking platforms arranged side by side up and down. 11. Two stacking platforms 11 are respectively arranged directly behind the two material distribution conveyor belts 1; a step-by-step lifting structure is provided at the rear of the frame, and two transfer structures are arranged side by side up and down on the step-by-step lifting structure, and the step-by-step lifting structure can step in the vertical direction and the distance of each step movement is the thickness of the silicon steel sheet 2; the two transfer structures are respectively arranged directly behind the two material distribution conveyor belts 1, and the transfer structure includes a lower slide plate 3, an upper driving arm 4 directly above the lower slide plate 3, a guide strip 5 on the lower side of the upper driving arm 4, a bracket 6 at the rear end of the upper driving arm 4, two active wheels 13 at the bottom of the upper driving arm 4 and arranged side by side front and back, two passive wheels 14 on the lower slide plate 3 and arranged side by side front and back, a pneumatic pressure plate 7 vertically arranged on the bracket 6, and an air blowing pipe at the rear end of the lower slide plate 3 8. Multiple silicon steel sheets 2 are stacked up and down on a stacking platform 11 to form a steel sheet stack 10; the pneumatic pressure plate 7 can move vertically, and it is located just above the front of the steel sheet stack 10, and it moves downward to press on the top of the steel sheet stack 10; the lower slide plate 3 and the upper driving arm 4 are both arranged in the front-to-back direction and their front ends are fixed on the step-by-step lifting structure, and the front end of the upper driving arm 4 is an inclined surface 9 inclined upward from back to front, and the lower slide plate 3 is always located below the rear end of the material distribution conveyor belt 1 on the corresponding side and it is located above the front of the corresponding stacking platform 11; the front end of the guide bar 5 extends forward relative to the front end of the upper driving arm 4, and it is arranged obliquely upward from back to front, and its front end is always located just above the rear end of the material distribution conveyor belt 1 on the corresponding side; the rear end of the guide bar 5 is relatively The rear end of the upper driving arm 4 extends backward, and it is arranged obliquely downward from front to back, and it is located above the front part of the steel sheet stack 10, and it is located in front of the adjacent pneumatic pressing plate 7; the guide strip 5 is provided with two notches arranged side by side in front and back for the driving wheel 13 to pass downward; when the step-by-step lifting structure moves up and down, the rear end of the material distribution conveyor belt 1 is always located between the front end of the lower slide plate 3 and the front end of the guide strip 5; the driving wheel 13 and the driven wheel 14 are both arranged in the left and right directions and are respectively located on the upper and lower sides of the silicon steel sheet 2; the two driving wheels 13 are respectively located at the front and rear of the upper driving arm 4, and they are driven synchronously, and they are located at the bottom of the upper driving arm 4 close to the bottom edge of the silicon steel sheet 2, and the distance between them is less than the length of the corresponding part of the silicon steel sheet 2, and the lower side thereof passes downward through the guide strip 5;The two passive wheels 14 are respectively located directly below the two active wheels 13 and their upper sides are flush with the lower slide plate 3. The rear passive wheel 14 is located at the rear end of the lower slide plate 3. The air blowing pipe 8 is located directly below the rear end of the guide bar 5. It is arranged in the front-to-back direction. It can rotate slightly downward. Its front end is rotatably arranged at the rear end of the lower slide plate 3. Its rear end blows air upward and is located adjacent to the front upper part of the middle of the front waist of the steel sheet stack 10.

[0009] Furthermore, a driving shaft 15 is provided on the left and right sides of the step-by-step lifting structure in the embodiment of the present invention. The driving shaft 15 passes through the front part of the upper driving arm 4. The front driving wheel 13 is coaxially arranged on the driving shaft 15. The rear driving wheel 13 is connected to the driving shaft 15 through a front-to-rear chain or synchronous belt.

[0010] Among them, the upper driving arm 4 in the embodiment of the present invention includes two side arms arranged side by side on the left and right and a central arm therebetween, there is a strip-shaped gap between the two side arms for accommodating the central arm and its front end is fixed on the stepping lifting structure, the rear end of the central arm extends backward relative to the side arm to form a bracket 6; the guide bar 5 is located adjacent to and below the side arm and is fixed on the central arm; the side arm is a hollow structure, the driving wheel 13 of the lower transfer structure is arranged on the left or right side arm; the driving wheel 13 of the upper transfer structure is arranged on the side arm on the other side.

[0011] Among them, the front part of the blowing pipe 8 in the embodiment of the present invention is arranged obliquely downward from front to back, and the rear part is arranged obliquely upward from front to back, and the front end is arranged on the lower side of the lower slide plate 3 through the left-right rotating shaft, and a torsion spring is arranged between it and the lower side of the lower slide plate 3 to allow it to rotate upward; when the silicon steel sheet 2 is transported backward, the rear end of the silicon steel sheet 2 can contact the rear part of the blowing pipe 8 to allow the blowing pipe 8 to rotate downward.

[0012] The pneumatic pressure plate 7 in the embodiment of the present invention is arranged in the front-to-back direction, and a soft layer is provided on the lower side thereof.

[0013] Furthermore, in the embodiment of the present invention, two sliding bars are arranged side by side on the left and right sides of the rear part of the frame, the sliding bars are arranged vertically, the transfer structure is located between the two sliding bars, and the step-by-step lifting structure is slidably arranged on the two sliding bars.

[0014] Among them, the lower slide plate 3 in the embodiment of the present invention is an isosceles trapezoidal plate that is larger in the front and smaller in the rear, and its upper surface is smooth; the passive wheel 14 is arranged in the middle of the lower slide plate 3; the guide bar 5 is a flexible steel bar, and its lower surface is smooth, and its left and right sides located on the inclined surface 9 extend toward the corresponding sides relative to the upper driving arm 4.

[0015] Furthermore, an upper conveyor belt 12 is provided adjacent to the upper part of the front part of the upper material distribution conveyor belt 1 in the embodiment of the present invention, and the upper conveyor belt 12 cooperates with the upper material distribution conveyor belt 1 to form a clamping conveying structure; a shading plate is provided adjacent to the upper part of the rear part of the material distribution conveyor belt 1, and a photoelectric sensor 16 is provided on the shading plate and directly above the silicon steel sheet 2, and the photoelectric sensor 16 delays and controls the pneumatic pressure plate 7.

[0016] Specifically, the inclination angle of the front end of the guide bar 5 of the lower transfer structure in the embodiment of the present invention is greater than 30°, and the inclination angle of the front end of the guide bar 5 of the upper transfer structure is less than 20°.

[0017] Furthermore, the V-shaped notch cutting mechanism in the embodiment of the present invention is arranged on a slide plate that can move left and right, and the slide plate moves left and right step by step as needed to make the V-shaped notch of the steel sheet stack 10 in a stepped shape. The beneficial effects of the technical solution provided by the embodiment of the present invention are as follows: the embodiment of the present invention provides a cross-cutting and stacking device for silicon steel sheets. This patent uses the flexibility (relatively thin) of silicon steel sheets for transfer and transportation to ensure that the transfer structure can be transported backward when moving up and down; when stacking, the distance between the transfer structure and the top of the steel sheet stack is always equal, and at the same time, the guide strip and the air blowing pipe are set to make the stacking neat and simple in structure. Specifically, for steel sheet stacks (length greater than 50cm, stack thickness greater than 30 sheets), the deviation between the corresponding edges of the silicon steel sheets of adjacent sheets is no more than 2mm, more than 83% of the silicon steel sheets have a deviation of less than 0.5mm relative to the corresponding edges of the silicon steel sheets in the theoretical position, only 5% of the silicon steel sheets have a deviation of more than 0.8mm relative to the corresponding edges of the silicon steel sheets in the theoretical position, and only 0.7% of the silicon steel sheets have a deviation of more than 1mm relative to the corresponding edges of the silicon steel sheets in the theoretical position. The silicon steel sheets are stacked very neatly, and the V-shaped notch of the steel sheet stack is in a standard step shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial structural schematic diagram of a cross-cutting and stacking device for silicon steel sheets provided in an embodiment of the present invention; Figure 2 yes Figure 1 A partial enlarged view of Figure 3 is a schematic diagram of the structure of the transport structure below; Figure 4 It is a structural diagram of the transport structure above; Figure 5 It is a structural schematic diagram of the combination of the lower slide plate, the air blowing pipe and the steel sheet stack.

[0019] In the figure: 1 material distribution conveyor belt, 2 silicon steel sheet, 3 lower slide plate, 4 upper driving arm, 5 guide strip, 6 bracket, 7 pneumatic pressure plate, 8 blowing pipe, 9 inclined surface, 10 steel sheet stack, 11 stacking platform, 12 upper conveyor belt, 13 driving wheel, 14 passive wheel, 15 driving shaft, 16 photoelectric sensor. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example 1 See also Figure 1-5 Embodiment 1 provides a cross-cutting and stacking device for silicon steel sheets, which includes a cross-cutting structure, a material distribution and conveying structure, a stacking structure, a step-by-step lifting structure, and two transfer structures. The cross-cutting structure, the material distribution and conveying structure, and the stacking structure are arranged in sequence, the step-by-step lifting structure is located at the rear of the material distribution and conveying structure, and the transfer structure is located between the material distribution and conveying structure and the stacking structure.

[0022] Among them, the cross-cutting structure includes a cross-cutting conveying mechanism arranged in the front-to-back direction and a punching mechanism, a V-shaped cutting mechanism and a beveling mechanism thereon, etc. The material-dividing conveying structure includes a frame, two material-dividing conveying belts 1 and a material-dividing mechanism, etc. The two material-dividing conveying belts 1 are arranged obliquely downward from front to back (upper material-dividing conveying belt) and obliquely upward from front to back (lower material-dividing conveying belt), respectively. The material-dividing mechanism is used to selectively convey the silicon steel sheets 2 output by the cross-cutting conveying mechanism to the two material-dividing conveying belts 1. Specifically, the even-numbered silicon steel sheets 2 can be sent to the lower material-dividing conveying belt, and the odd-numbered silicon steel sheets 2 can be sent to the upper material-dividing conveying belt, that is, the material-dividing mechanism continuously flips up and down to send two adjacent silicon steel sheets 2 to different material-dividing conveying belts 1. The stacking structure includes a traveling vehicle capable of moving left and right and a plurality of placement units arranged side by side left and right thereon, etc. The placement unit includes two stacking platforms 11 arranged side by side up and down, and the two stacking platforms 11 are respectively arranged directly behind the two material-dividing conveying belts 1. Multiple silicon steel sheets 2 are stacked up and down on a stacking platform 11 to form a steel sheet stack 10. After a certain number of sheets are stacked, the traveling vehicle moves left or right. The above structures are all existing structures, and detailed description is omitted in this embodiment.

[0023] Among them, a step-by-step lifting structure is provided at the rear of the frame, and two transfer structures are arranged side by side on the step-by-step lifting structure. The step-by-step lifting structure can step in the vertical direction, and the distance of each step (the two transfer structures move after conveying a silicon steel sheet 2) is the thickness of the silicon steel sheet 2 (to ensure that the distance between the transfer structure and the steel sheet stack 10 is equal); the two transfer structures are respectively arranged directly behind the two material distribution conveyor belts 1.

[0024] The transfer structure includes a lower slide plate 3, an upper driving arm 4, a guide bar 5, a bracket 6, two active wheels 13, two passive wheels 14, a pneumatic pressure plate 7 and an air blowing pipe 8, etc.

[0025] Among them, the lower slide plate 3 and the upper driving arm 4 are both arranged in the front-to-back direction and their front ends are fixed on the step-to-lift structure. The upper driving arm 4 is located directly above the lower slide plate 3, and its front end is an inclined surface 9 that tilts upward from the back to the front. The lower slide plate 3 is always located below the rear end of the material distribution conveyor belt 1 on the corresponding side, and is located above and in front of the corresponding stacking platform 11. It is an isosceles trapezoidal plate with a larger front and a smaller rear (the width of its rear end is slightly smaller than the width of the silicon steel sheet 2), and its upper surface is smooth.

[0026] The bracket 6 is arranged along the front-rear direction and is arranged at the rear end of the upper driving arm 4 .

[0027] Among them, the pneumatic pressure plate 7 is arranged on the bracket 6 and can move vertically. It is located directly above the front of the steel sheet stack 10. It moves downward to press on the top of the steel sheet stack 10. It is arranged along the front-to-back direction (specifically, it is a rectangular plate arranged along the front-to-back direction), and a soft layer is provided on its lower side. It is driven by a corresponding cylinder (vertically arranged).

[0028] Among them, the guide bar 5 is arranged in the front-to-back direction, and it is arranged on the lower side of the upper driving arm 4. There are two notches (specifically rectangular holes arranged in the front-to-back direction) arranged side by side on the guide bar 5 for the driving wheel 13 to pass downward. It is a flexible steel bar with a smooth lower surface. The left and right sides of the guide bar 5 located at the inclined surface 9 extend toward the corresponding side of the upper driving arm 4 to form wing plates for guiding the silicon steel sheet 2. The front end of the guide bar 5 extends forward relative to the front end of the upper driving arm 4, and it is arranged obliquely upward from back to front. Its front end is always located directly above the rear end of the material distribution conveyor belt 1 on the corresponding side. The rear end of the guide bar 5 extends backward relative to the rear end of the upper driving arm 4, and it is arranged obliquely downward from front to back. It is located above the front part of the steel sheet stack 10, and it is located adjacent to the front of the pneumatic pressure plate 7.

[0029] When the step-by-step lifting structure moves up and down, the rear end of the material distribution conveyor belt 1 (the output silicon steel sheet 2 slides downward along the front end of the guide bar 5) is always located between the front end of the lower slide plate 3 and the front end of the guide bar 5.

[0030] Among them, the driving wheel 13 and the passive wheel 14 are both arranged in the left and right directions and are respectively located on the upper and lower sides of the silicon steel sheet 2. The driving wheel 13 is arranged at the bottom of the upper driving arm 4, and the passive wheel 14 is arranged in the middle of the lower slide 3. The two driving wheels 13 and the two passive wheels 14 constitute two roller conveying structures. The two driving wheels 13 are respectively located at the front and rear of the upper driving arm 4, and are driven synchronously. They are located at the bottom of the upper driving arm 4 close to one side (left or right) of the bottom edge of the silicon steel sheet 2. The distance between them is less than the length of the corresponding part of the silicon steel sheet 2 to ensure that the silicon steel sheet 2 can be conveyed backward at a predetermined speed, and its lower side passes downward through the guide bar 5. The two passive wheels 14 are respectively located directly below the two driving wheels 13 and their upper sides are flush with the lower slide 3. The rear passive wheel 14 is located at the rear end of the lower slide 3. Specifically, a driving shaft 15 (driven to rotate by a corresponding motor (provided on the stepping lifting structure)) is provided on the left and right sides of the stepping lifting structure, and the driving shaft 15 passes through the front part of the upper driving arm 4. The front driving wheel 13 is coaxially provided on the driving shaft 15, and the rear driving wheel 13 is connected to the driving shaft 15 through a front and rear chain or synchronous belt.

[0031] The air blowing pipe 8 is arranged at the rear end of the lower slide plate 3, which is located directly below the rear end of the guide bar 5, and is arranged in the front-to-back direction. It can rotate slightly downward (avoiding blocking the silicon steel sheet 2 and ensuring the speed of the silicon steel sheet 2), and its front end is rotatably arranged at the rear end of the lower slide plate 3. Its rear end (located adjacent to the lower part of the moving silicon steel sheet 2) blows upward and is located adjacent to the front upper part of the middle of the front waist of the steel sheet stack 10. Specifically, the front part of the air blowing pipe 8 is arranged obliquely downward from front to back (the inclination angle is less than 10°), and the rear part is arranged obliquely upward from front to back (the inclination angle is less than 10°). Its front end is rotatably arranged at the lower side of the lower slide plate 3 through a left-right rotating shaft, and a torsion spring is arranged between it and the lower side of the lower slide plate 3 to allow it to rotate upward. When the silicon steel sheet 2 is transported backward, the rear end of the silicon steel sheet 2 can (or may not) contact with the rear part of the air blowing pipe 8 to allow the air blowing pipe 8 to rotate downward.

[0032] Furthermore, in the embodiment of the present invention, two sliding bars are arranged side by side on the left and right sides of the rear part of the frame, the sliding bars are arranged vertically, the transfer structure is located between the two sliding bars, and the stepping lifting structure slides (which can be driven by the screw lifting structure or the synchronous belt lifting structure) and is arranged on the two sliding bars.

[0033] Furthermore, an upper conveyor belt 12 (located on the upper side of the silicon steel sheet 2) is provided adjacent to the front of the upper material distribution conveyor belt 1 (upper material distribution conveyor belt) in the embodiment of the present invention to ensure the conveying speed of the silicon steel sheet 2, and the upper conveyor belt 12 cooperates with the upper material distribution conveyor belt 1 to form a clamping conveying structure. A shading plate is provided adjacent to the rear of the material distribution conveyor belt 1, and a photoelectric sensor 16 is provided on the shading plate and directly above the silicon steel sheet 2, and the photoelectric sensor 16 delays and controls the pneumatic pressure plate 7.

[0034] Specifically, the inclination angle of the front end of the guide bar 5 of the lower transfer structure in the embodiment of the present invention is greater than 30°, and the inclination angle of the front end of the guide bar 5 of the upper transfer structure is less than 20°.

[0035] Example 2 Example 2 provides a cross-cutting and stacking device for silicon steel sheets, and its structure is basically the same as that of Example 1, except that: the V-shaped cutting mechanism in this embodiment is arranged on a slide plate that can move left and right, and the slide plate moves left and right in a step-by-step manner as needed (specifically, it can be driven by a left and right screw drive structure) to make the V-shaped notch of the steel sheet stack 10 step-shaped.

[0036] Example 3 See also Figure 3-4 , Example 3 provides a cross-cutting and stacking device for silicon steel sheets, and its structure is basically the same as that of Example 1, except that: the upper driving arm 4 in this embodiment includes two side arms arranged side by side on the left and right and a central arm therebetween, there is a strip-shaped gap between the two side arms for accommodating the central arm and its front end is fixed on the step-by-step lifting structure, and the rear end of the central arm extends backward relative to the side arm to form a bracket 6. The guide bar 5 is located adjacent to and below the side arm and is fixed on the central arm. The side arm is a hollow structure, and the driving wheel 13 of the lower transfer structure is arranged on the left or right side arm (specifically on the right arm); the driving wheel 13 of the upper transfer structure is arranged on the side arm on the other side (specifically on the left arm).

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cross-cutting and stacking device for silicon steel sheets, comprising a cross-cutting structure, a material distribution and conveying structure and a stacking structure arranged in sequence from front to back, wherein the cross-cutting structure comprises a cross-cutting and conveying mechanism arranged in a front-to-back direction and a punching mechanism, a V-shaped cutting mechanism and a beveling mechanism thereon, wherein the material distribution and conveying structure comprises a frame, two material distribution and conveying belts (1) and a material distribution mechanism, wherein the two material distribution and conveying belts (1) are arranged obliquely downward from front to back and obliquely upward from front to back, respectively, wherein the material distribution mechanism is used to selectively convey the silicon steel sheets (2) output by the cross-cutting and conveying mechanism to the two material distribution and conveying belts (1), wherein the stacking structure comprises a traveling vehicle capable of moving in a left-right direction and a plurality of placement units arranged side by side on the traveling vehicle, wherein the placement units comprise two stacking platforms (11) arranged side by side up and down, wherein the two stacking platforms (11) are respectively arranged directly behind the two material distribution and conveying belts (1); wherein the stacking structure comprises a traveling vehicle capable of moving in a left-to-right direction and a plurality of placement units arranged side by side on the traveling vehicle, wherein the placement units comprise two stacking platforms (11) arranged side by side up and down, wherein the two stacking platforms (11) are respectively arranged directly behind the two material distribution and conveying belts (1); wherein the stacking structure comprises a traveling vehicle capable of moving in a left-to-right direction and a plurality of placement units arranged side by side on the traveling vehicle, wherein the two ... The rear part of the frame is provided with a step-by-step lifting structure, on which two transfer structures are arranged side by side in an upper and lower manner, and the step-by-step lifting structure can move in a step-by-step manner in a vertical direction, and the distance of each step-by-step movement is the thickness of the silicon steel sheet (2); Two transfer structures are respectively arranged directly behind the two material distribution conveyor belts (1), and the transfer structures include a lower slide plate (3), an upper driving arm (4) directly above the lower slide plate (3), a guide strip (5) on the lower side of the upper driving arm (4), a bracket (6) at the rear end of the upper driving arm (4), two driving wheels (13) arranged side by side at the bottom of the upper driving arm (4), two driven wheels (14) arranged side by side on the lower slide plate (3), a pneumatic pressure plate (7) arranged vertically on the bracket (6), and an air blowing pipe (8) at the rear end of the lower slide plate (3). Multiple silicon steel sheets (2) are stacked up and down on a stacking platform (11) to form a steel sheet stack (10); The pneumatic pressing plate (7) can move vertically, is located directly above the front of the steel sheet stack (10), and moves downward to press on the top of the steel sheet stack (10); The lower slide plate (3) and the upper driving arm (4) are both arranged in the front-to-back direction and their front ends are fixed on the step-by-step lifting structure. The front end of the upper driving arm (4) is an inclined surface (9) inclined upward from the back to the front. The lower slide plate (3) is always located below the rear end of the material distribution conveyor belt (1) on the corresponding side and is located above the front of the corresponding stacking platform (11). The front end of the guide bar (5) extends forward relative to the front end of the upper driving arm (4). It is arranged upward from the back to the front and its front end is always located above the material distribution conveyor belt (1) on the corresponding side. The guide bar (5) is arranged to be located directly above the rear end of the conveyor belt (1); the rear end of the guide bar (5) extends backward relative to the rear end of the upper driving arm (4), and is arranged obliquely downward from front to back, and is located above the front part of the steel sheet stack (10), and is located adjacent to the front of the pneumatic pressing plate (7); the guide bar (5) is provided with two notches arranged side by side in front and back for the driving wheel (13) to pass downward; when the step-by-step lifting structure moves up and down, the rear end of the material distribution conveyor belt (1) is always located between the front end of the lower slide plate (3) and the front end of the guide bar (5); The driving wheel (13) and the driven wheel (14) are both arranged in the left-right direction and are respectively located on the upper and lower sides of the silicon steel sheet (2); the two driving wheels (13) are respectively located at the front and rear of the upper driving arm (4), and are driven synchronously. They are located at the bottom of the upper driving arm (4) close to the bottom edge of the silicon steel sheet (2), and the distance between them is less than the length of the corresponding part of the silicon steel sheet (2), and their lower sides pass through the guide strip (5) downward; the two driven wheels (14) are respectively located directly below the two driving wheels (13) and their upper sides are flush with the lower slide plate (3), and the rear driven wheel (14) is located at the rear end of the lower slide plate (3); The blowing pipe (8) is located directly below the rear end of the guide strip (5), is arranged in the front-to-back direction, can rotate slightly downward, and its front end is rotatably arranged at the rear end of the lower slide plate (3), and its rear end blows air upward and is located adjacent to the front upper middle part of the front waist of the steel sheet stack (10).

2. The cross-cutting and stacking device for silicon steel sheets according to claim 1, characterized in that: A driving shaft (15) is arranged on the upper side of the step-by-step lifting structure in the left-right direction. The driving shaft (15) passes through the front part of the upper driving arm (4). The front driving wheel (13) is coaxially arranged on the driving shaft (15). The rear driving wheel (13) is connected to the driving shaft (15) through a front-to-back chain or a synchronous belt.

3. The cross-cutting and stacking device for silicon steel sheets according to claim 2, characterized in that: The upper driving arm (4) comprises two side arms arranged side by side on the left and right and a central arm therebetween; there is a strip-shaped gap between the two side arms for accommodating the central arm and the front end of the gap is fixed on the step-by-step lifting structure; the rear end of the central arm extends backward relative to the side arm to form a bracket (6); the guide bar (5) is located adjacent to and below the side arm and is fixed on the central arm; the side arm is a hollow structure, and the driving wheel (13) of the lower transfer structure is arranged on the left or right side arm; the driving wheel (13) of the upper transfer structure is arranged on the side arm on the other side.

4. The cross-cutting and stacking device for silicon steel sheets according to claim 1, characterized in that: The front part of the blowing pipe (8) is arranged obliquely downward from front to back, and the rear part thereof is arranged obliquely upward from front to back. The front end thereof is arranged on the lower side of the lower slide plate (3) by rotating through a left-right rotating shaft, and a torsion spring is arranged between the front end thereof and the lower side of the lower slide plate (3) to enable the latter to rotate upward. When the silicon steel sheet (2) is transported backward, the rear end of the silicon steel sheet (2) can contact the rear part of the blowing pipe (8) to allow the blowing pipe (8) to rotate downward.

5. The cross-cutting and stacking device for silicon steel sheets according to claim 1, characterized in that: The pneumatic pressure plate (7) is arranged in the front-rear direction, and a soft layer is provided on the lower side thereof.

6. The cross-cutting and stacking device for silicon steel sheets according to claim 1, characterized in that: Two sliding bars are arranged side by side on the left and right sides of the rear part of the frame. The sliding bars are arranged vertically. The transfer structure is located between the two sliding bars. The step-by-step lifting structure is slidably arranged on the two sliding bars.

7. The cross-cutting and stacking device for silicon steel sheets according to claim 1, characterized in that: The lower slide plate (3) is an isosceles trapezoidal plate that is larger at the front and smaller at the rear, and its upper surface is smooth; the passive wheel (14) is arranged in the middle of the lower slide plate (3); the guide bar (5) is a flexible steel bar, and its lower surface is smooth, and its left and right sides located at the inclined surface (9) extend toward the corresponding sides of the upper drive arm (4).

8. The cross-cutting and stacking device for silicon steel sheets according to claim 1, characterized in that: An upper conveyor belt (12) is provided adjacent to the front portion of the upper material distribution conveyor belt (1), and the upper conveyor belt (12) cooperates with the upper material distribution conveyor belt (1) to form a clamping conveying structure; a shading plate is provided adjacent to the rear portion of the material distribution conveyor belt (1), and a photoelectric sensor (16) is provided on the shading plate and directly above the silicon steel sheet (2), and the photoelectric sensor (16) delays and controls the pneumatic pressure plate (7).

9. The cross-cutting and stacking device for silicon steel sheets according to claim 1, characterized in that: The inclination angle of the front end of the guide bar (5) of the lower transfer structure is greater than 30°, and the inclination angle of the front end of the guide bar (5) of the upper transfer structure is less than 20°.

10. The cross-cutting and stacking device for silicon steel sheets according to claim 1, characterized in that: The V-shaped notch cutting mechanism is arranged on a slide plate which can move left and right, and the slide plate moves left and right step by step as required to make the V-shaped notch of the steel sheet stack (10) present a step shape.

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