CN211915277U

CN211915277U - Plate bending machine

Info

Publication number: CN211915277U
Application number: CN202020356685.4U
Authority: CN
Inventors: 朱卫忠
Original assignee: Shanghai Yarong Elevator Equipment Manufacturing Co ltd
Current assignee: Shanghai Yarong Elevator Equipment Manufacturing Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-11-13
Anticipated expiration: 2030-03-19

Abstract

The utility model relates to a panel bender, it includes that body and material loading mouth department are provided with loading attachment, loading attachment includes two L shaped plates and bottom plate, L shaped plate fixed connection in on the bottom plate, fixedly connected with conveying platform between the L shaped plate, the bottom fixedly connected with slide rail of conveying platform, sliding connection has the push pedal in the slide rail, the upper end fixedly connected with ejector pad of one side of material loading mouth is kept away from in the push pedal, the height and the single steel plate thickness of ejector pad are unanimous, the one end that the push pedal is close to ground is provided with the driving medium, the L shaped plate in one side that the conveying platform is close to the body material loading mouth is provided with transmission device, the conveying bench still is provided with the locating part that is used for neatly piling up. The utility model discloses have the effect that makes things convenient for the workman can carry panel disposable transport and carry out the automatic alignment material loading when the panel of fifty percent discount bender carries out the material loading.

Description

Plate bending machine

Technical Field

The utility model belongs to the technical field of the technique of bender equipment and specifically relates to a panel bender is related to.

Background

A bending machine is a machine capable of bending a thin plate. When the bending machine is used, a thin plate to be bent is placed on the workbench, the upper bending die faces downwards, and the upper bending die and the lower bending die bend the thin plate together. The hydraulic bending machine has the advantages of simplicity in operation, low cost, high response speed and the like, and is widely applied to the operation process of bending the workpiece plate.

Chinese patent No. CN208866189U, published as 2019, 5.17.A name of the invention relates to a hydraulic bending machine for metal sheets, which comprises a frame, a bending mechanism, a material supporting mechanism and a control system, both of which are disposed on the frame, wherein the bending mechanism and the bending mechanism are electrically connected to the control system, the bending mechanism comprises an upper press plate disposed at the upper end of the frame and slidably engaged with the frame, hydraulic cylinders disposed at both sides of the upper press plate, an upper die cutter mounted at the lower end of the upper press plate through an upper die fixture, and a lower die mounted on a worktable of the frame through a lower die fixture, the lower die is located under the upper die cutter, and the material supporting mechanism comprises a guide rail disposed on the frame, a material supporting platform disposed on the guide rail, and a linear motor disposed on the frame and connected to the material supporting platform.

The above prior art solutions have the following drawbacks: the workman need carry panel to the material loading mouth of panel bender when carrying out the material loading to panel bender, because panel is heavy, the workman need carry out single alignment material loading to panel when placing panel on the panel bender, need consume a large amount of labours and have the improvement space.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a workman can carry the panel bender that carries out the automatic alignment material loading with panel disposable transport when the panel of fifty percent discount bender carries out the material loading.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a plate bending machine, body and material loading mouth department are provided with loading attachment, loading attachment includes two L shaped plates and bottom plate, L shaped plate fixed connection in on the bottom plate, fixedly connected with conveying platform between the L shaped plate, the bottom fixedly connected with slide rail of conveying platform, sliding connection has the push pedal in the slide rail, the upper end fixedly connected with ejector pad of one side of material loading mouth is kept away from to the push pedal, the height of ejector pad is unanimous with single steel plate thickness, the one end that the push pedal is close to ground is provided with the driving medium, the L shaped plate in one side that the conveying platform is close to the body material loading mouth is provided with transmission device, the conveying bench still is provided with the locating part that is used for neatly.

Through adopting above-mentioned technical scheme, neatly pile up the steel sheet at the conveying bench under the effect of locating part, the driving medium orders about the push pedal and removes along the slide rail, promotes the steel sheet to the transmission device department of conveying platform under the effect of ejector pad, with the steel sheet neatly aim at the material loading mouth department that conveys the bender, have and make things convenient for the workman can carry the effect that the automatic alignment material loading was carried out to panel disposable when carrying out the material loading to the panel of fifty percent discount machine.

The present invention may be further configured in a preferred embodiment as: the driving medium includes the actuating lever, the actuating lever rotate connect in on the bottom plate, the actuating lever is close to long waist hole has been seted up on the lateral wall of the one end of push pedal, the actuating lever in long waist hole department with the push pedal rotates to be connected, it is connected with the runner to rotate on the lateral wall of actuating lever, the runner butt has the drive wheel, two the L shaped plate in the center of drive wheel rotates and is connected with the pivot, the drive wheel cover is located the outer wall of pivot, one section arc end of drive wheel sets up to the V-arrangement, the actuating lever is close to the lateral wall of the one end of push pedal in the slide rail is close to being provided with the back-draw piece between the bottom on material loading mouth one.

Through adopting above-mentioned technical scheme, the actuating lever orders about the one side removal that the material loading mouth was kept away from to the runner along the drive wheel, under the effect of pull-back piece, pull back the actuating lever to one side of material loading mouth under the effect of drive wheel V-arrangement end, thereby it removes along the slide rail to drive the push pedal, long kidney-shaped hole on the actuating lever is along push pedal rebound, remove along the slide rail with the push pedal is stable, thereby it removes the steel sheet along the slide rail removal and sends out the conveying platform and carry out neat material loading to drive ejector pad, the drive wheel revolves the shaft rotation under motor drive pivot pivoted effect.

The present invention may be further configured in a preferred embodiment as: the pull-back piece is extension spring, extension spring's one end with the actuating lever is close to the lateral wall fixed connection of the one end of push pedal, extension spring's the other end with the slide rail is close to the bottom fixed connection of material loading mouth one side.

Through adopting above-mentioned technical scheme, be close to the bottom fixedly connected with extension spring of the one end of material loading mouth at actuating lever and slide rail, after the drive wheel extrudees the runner to the one end of keeping away from the material loading mouth, when the V-arrangement end of drive wheel rotated the position of runner, extension spring pulled back the actuating lever to the one end pull-back actuating lever of material loading mouth with the actuating lever to drive the push rod and remove along the slide rail, support the ejector pad tight steel sheet and drive the steel sheet and remove along conveying platform and make the steel sheet carry out neat conveying under transmission's effect.

The present invention may be further configured in a preferred embodiment as: the transmission device comprises a transmission roller and a pressing roller, the transmission roller is rotatably connected between vertical plates of L-shaped plates, the upper end of the transmission roller is flushed with the upper end of the conveying table, the two ends of the pressing roller are rotatably connected with a sliding block, the two vertical plates of the L-shaped plates are provided with sliding grooves, the sliding blocks are slidably connected in the sliding grooves, bottom fixedly connected with pressing columns of the sliding grooves are arranged in the sliding grooves, the upper ends of the pressing columns are flushed with the upper ends of the transmission roller, and compression springs are arranged between the sliding blocks and the inner top ends of the sliding grooves.

Through adopting above-mentioned technical scheme, transmission device's driving roller transports the steel sheet that the push pedal was released in the rotation, under the effect of supporting the tight roller, the tight friction increase of supporting between driving roller and the steel sheet, the driving roller of being convenient for conveys out the conveying platform with the steel sheet, support tight piece under compression spring's effect, get into between the driving roller at the steel sheet, can upwards extrude the tight roller that will support, treat when the steel sheet is worn out the driving roller and is supported the tight roller, support the tight roller and carry out an extrusion to the tight roller under dead weight and compression spring's resilience, can improve the roughness between the steel sheet, support the tight roller and can avoid supporting the tight roller whereabouts and cause the impact damage to the driving roller under the effect of support post.

The present invention may be further configured in a preferred embodiment as: one end of the transmission roller penetrates through the side wall of the L-shaped plate, a first penetrating end of the transmission roller is fixedly connected with a belt wheel, one end of the motor far away from the rotating shaft penetrates through the side wall of the L-shaped plate, a second penetrating end of the rotating shaft is fixedly connected with a belt wheel, the first belt wheel and the second belt wheel are located on the same side of the L-shaped plate, and a belt is sleeved on the first belt wheel and the second belt wheel.

Through adopting above-mentioned technical scheme, the driving roller rotates the pivot through the motor and drives two band pulleys and rotate and order about the belt and further drive the band pulley and rotate around two transmission of band pulley under the effect of band pulley one and band pulley two, has and shares a power supply with driving medium and transmission device, has the effect of practicing thrift the energy consumption.

The present invention may be further configured in a preferred embodiment as: the upper end thread of the vertical plate of the L-shaped plate is provided with a stud in a penetrating mode, one end, close to the sliding groove, of the stud is fixedly connected with one end of the compression spring, and the other end of the compression spring is fixedly connected with the upper end of the sliding block.

Through adopting above-mentioned technical scheme, the double-screw bolt is worn to be equipped with by the upper end screw thread of L shaped plate, through double-screw bolt and compression spring fixed connection, can adjust the extended position of double-screw bolt in the spout, increases compression spring's extrusion force for it is more stable to support tight to the steel sheet to support the pinch roll, and makes driving roller and the leveling effect of the pinch roll to the steel sheet better.

The present invention may be further configured in a preferred embodiment as: the L-shaped plate is close to one end fixedly connected with guide plate of material loading mouth, the guide plate with the upper end of conveying platform flushes.

Through adopting above-mentioned technical scheme, the one end fixedly connected with deflector that the conveying platform is close to the material loading mouth under the effect of deflector for the transportation that the steel sheet conveying goes out the conveying platform is neat more stable.

The present invention may be further configured in a preferred embodiment as: the locating part includes the gag lever post, gag lever post fixed connection in four corners of conveying bench upper end, the conveyer belt has been seted up the transportation hole on being close to the lateral wall of the bottom of the gag lever post of material loading mouth one side, the height in transportation hole and the highly uniform of single steel sheet.

Through adopting above-mentioned technical scheme, gag lever post fixed connection is in four corners of the upper end of conveying platform, with the steel sheet chucking in conveying bench, avoids putting of steel sheet disorderly for the steel sheet is stable orderly conveying out of conveying platform under the effect of conveying hole.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the utility model discloses panel bender is through neatly piling up the steel sheet on the conveying platform under the effect of locating part, and the driving medium orders about the push pedal and moves along the slide rail, promotes the steel sheet to the transmission device department of conveying platform under the effect of ejector pad, neatly aims at the material loading mouth department that conveys the bender with the steel sheet, has the effect that can once only carry the panel when the panel of convenient workman to the bender carries out the automatic alignment material loading;

2. the utility model discloses panel bender transports the steel sheet that the push pedal was released in the rotation through transmission device's driving roller, under the effect of resisting tight roller, the friction of supporting between driving roller and the steel sheet increases, be convenient for the driving roller to convey the steel sheet out of the conveying platform, it is under compression spring's effect to support tight piece, under the steel sheet gets into between the driving roller, can upwards extrude resisting tight roller, when waiting for the steel sheet to wear out driving roller and resisting tight roller, the resisting tight roller carries out an extrusion to resisting tight roller under the dead weight and the resilience of compression spring, can improve the roughness between the steel sheet, resisting tight roller can avoid resisting tight roller whereabouts to cause the impact damage to the driving roller under the effect of post;

3. the utility model discloses panel bender gag lever post fixed connection is in four corners of the upper end of conveying platform, with the steel sheet chucking in conveying bench, avoids putting of steel sheet disorderly for the steel sheet is stable orderly conveying under the effect of conveying hole and is gone out the conveying platform.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a general schematic view of fig. 1 from different angles.

In the figure, 1, a feeding device; 2. a transmission member; 3. a transfer device; 4. a limiting member; 5. an L-shaped plate; 6. a base plate; 7. a transfer table; 8. a limiting rod; 9. a slide rail; 10. a long waist hole; 11. pushing the plate; 12. a push block; 13. a drive rod; 14. an extension spring; 15. a first belt wheel; 16. a second belt wheel; 17. a belt; 18. a chute; 19. a slider; 20. a driving roller; 21. a tightening roller; 22. a stud; 23. a compression spring; 24. a butting post; 25. a guide plate; 26. a rotating shaft; 27. a drive wheel; 28. a rotating wheel; 29. a motor; 30. and (7) a conveying hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the following description uses terms of orientation such as "front and back end," "left and right sides," "above," "below," and the like to refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" to refer to directions toward and away from, respectively, the geometric center of a particular component. In addition, the descriptions of "mounted on … …", "disposed on … …" and the like refer to two components having a certain connection and positional relationship, and do not refer to one component being on the upper surface of the other component. In the present invention, unless otherwise explicitly fixed or limited, the terms "assembled", "connected" and "connected" should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The inclined plane in the present invention can be understood as an arc inclined plane similar to a chamfer, and can also be understood as a plane inclined plane, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific situation.

Referring to fig. 1 and 2, for the utility model discloses a plate bending machine, including the body in loading attachment 1 of material loading mouth setting. The feeding device 1 comprises two L-shaped plates 5 and a bottom plate 6, wherein the L-shaped plates 5 are fixedly connected to the bottom plate 6, and the material of the L-shaped plates 5 is preferably a metal material. The shape of the bottom plate 6 is preferably square, and the material thereof is preferably a metal material. A conveying table 7 is fixedly connected between the two L-shaped plates 5, the shape of the conveying table 7 is preferably square, and the material of the conveying table 7 is preferably metal. The bottom end of the conveying table 7 is fixedly connected with a slide rail 9, a push plate 11 is connected in the slide rail 9 in a sliding mode, the shape of the slide rail 9 is preferably square, and the material of the slide rail 9 is preferably metal material. The push plate 11 is preferably square in shape and the material thereof is preferably a metallic material. The upper end of the push plate 11, which is far away from the loading port, is fixedly connected with a push block 12, the shape of the push block 12 is preferably cylindrical, and the material of the push block is preferably a metal material. The height of the push block 12 corresponds to the thickness of a single steel plate. One end of the push plate 11 close to the ground is provided with a transmission part 2, one end of the L-shaped plate 5 close to the body feeding port is provided with a transmission device 3, and the transmission platform 7 is provided with a limiting part 4 used for orderly accumulating steel plates. Through neatly piling up the steel sheet on conveying platform 7 under the effect of locating part 4, driving medium 2 orders about push pedal 11 and removes along slide rail 9, promotes the steel sheet to conveying platform 7's transmission device 3 department under the effect of ejector pad 12, with the steel sheet neatly aim at the material loading mouth department that conveys the bender, has the effect that makes things convenient for the workman to carry at one time the panel of fifty percent discount bender and carry out the automatic material loading that aligns when carrying out the material loading.

The transmission member 2 comprises a driving rod 13, the driving rod 13 is rotatably connected to the bottom plate 6, the shape of the driving rod 13 is preferably square, and the material of the driving rod is preferably metal. Wear to be equipped with long waist hole 10 on the lateral wall of the one end that actuating lever 13 is close to push pedal 11, logical groove has been seted up on push pedal 11, it is connected with the connecting axle to rotate between the lateral wall that leads to the groove, the outer wall of connecting axle is located to long waist hole 10 cover, when push pedal 11 removed along slide rail 9, actuating lever 13 was done under the effect in long waist hole 10 and is rotated ascending displacement to guarantee actuating lever 13 and push pedal 11 when ordering about push pedal 11 and remove along slide rail 9 and still guarantee the level. The side wall of the driving rod 13 is rotatably connected with a rotating wheel 28, and the material of the rotating wheel 28 is preferably metal material. The side wall of the rotating wheel 28 is abutted with a driving wheel 27, the driving wheel 27 is sleeved on the rotating shaft 26 between the two L-shaped plates 5, the shape of the rotating shaft 26 is preferably a cylindrical rod, and the material of the rotating shaft 26 is preferably a metal material. An arc end of the driving wheel 27 is processed into a V shape, and the material of the driving wheel 27 is preferably a metal material. The motor 29 is fixedly connected to the rotating shaft 26. The motor 29 is preferably of the type TC8024B5-TCL 010. A back-pulling piece is arranged between one end of the driving rod 13 close to the feeding port and the bottom end of the sliding rail 9 close to the feeding port.

The back-pull piece is an extension spring 14, one end of the extension spring 14 is fixedly connected with the side wall of the driving rod 13, and the other end of the extension spring 14 is fixedly connected with the bottom end of the sliding rail 9 close to one end of the feeding hole. The material of the tension spring 14 is preferably a metallic material.

The transmission device comprises a transmission roller 20 and a butting roller 21, the transmission roller 20 is rotatably connected between the vertical plates of the two L-shaped plates 5, and the upper end of the transmission roller 20 is flush with the upper end of the conveying table 7. The driving roller 20 is preferably cylindrical in shape, and the material thereof is preferably a metal material. The two sides of the abutting roller 21 are rotatably connected with sliding blocks 19, the upper ends of the two L-shaped plates 5 of the driving rollers 20 are provided with sliding grooves 18, and the sliding blocks 19 are slidably connected in the sliding grooves 18. The slider 19 is preferably square in shape and its material is preferably a metallic material. The bottom end of the slide block 19 is abutted with an abutting column 24, the abutting column 24 is fixedly connected to the bottom of the sliding groove 18, the upper end of the abutting column 24 is flush with the upper end of the conveying table 7, the shape of the abutting column 24 is preferably cylindrical, and the material of the abutting column is preferably metal material. A compression spring 23 is arranged between the slide block 19 and the inner top end of the slide groove 18. The material of the compression spring 23 is preferably a metallic material.

The lateral wall of a L-shaped plate 5 is worn to establish by the one end of driving roller 20, and the fixedly connected with band pulley 15 that wears out of driving roller 20, and the outer wall of L-shaped plate 5 is worn to establish by the one end that motor 29 was kept away from to pivot 26, and the fixedly connected with band pulley two 16 that wears out of pivot 26, and band pulley 15 and band pulley two 16 are located same one side, and the cover is equipped with belt 17 on band pulley 15 and the band pulley two 16. The first pulley 15 is preferably circular in shape and the material thereof is preferably a metallic material. The second pulley 16 is preferably circular in shape and is preferably made of a metal material. The belt 17 is preferably annular in shape, and the material thereof is preferably a rubber material.

A stud 22 is threaded through the upper end of the L-shaped plate 5, and one end of the stud 22 close to the inside of the sliding groove 18 is fixedly connected with the upper end of a compression spring 23. One end of the compression spring 23 close to the slide block 19 is fixedly connected with the upper end of the slide block 19. The stud 22 is preferably in the shape of a hexagonal stud 22, and the material thereof is preferably a metallic material. One end of the L-shaped plate 5 close to the feeding hole is fixedly connected with a guide plate 25. The guide plate 25 is preferably square in shape, and the material thereof is preferably a metal material.

The limiting part 4 comprises a limiting rod 8, and the limiting rod 8 is fixedly connected to four corners of the upper end face of the conveying table 7. The bottom of the limiting rod 8 towards the one end of the feeding hole is provided with a transport hole 30, and the height of the transport hole 30 is consistent with that of a single steel plate. The shape of the limit rod 8 is preferably a square rod with an L-shaped section, and the material of the limit rod is preferably a metal material.

The implementation principle of the embodiment is as follows: through neatly piling up the steel sheet on conveying platform 7 under the effect of locating part 4, driving medium 2 actuating lever 13 drives pivot 26 at the external power supply of motor 29 and rotates and make drive wheel 27 rotate and drive runner 28 and rotate, make actuating lever 13 order about push pedal 11 and remove along slide rail 9, promote the steel sheet to conveying platform 7's transmission device 3 department under the effect of ejector pad 12, it carries out the material loading to rotate the transmission that drives the steel sheet between driving roller 20 and resisting pinch-off rolls 21 through driving roller 20, the material loading mouth department that conveys the bender is neatly aimed at to the steel sheet, the effect that can once only carry out the automatic alignment material loading with panel when the panel of fifty percent discount bender carries out the material loading has the convenience of workman.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A plate bending machine is characterized in that: the body is provided with a feeding device (1) at a feeding port, the feeding device (1) comprises two L-shaped plates (5) and a bottom plate (6), the L-shaped plates (5) are fixedly connected to the bottom plate (6), a conveying table (7) is fixedly connected between the L-shaped plates (5), the bottom end of the conveying table (7) is fixedly connected with a slide rail (9), the slide rail (9) is connected with a push plate (11) in a sliding way, the upper end of one side of the push plate (11) far away from the feeding hole is fixedly connected with a push block (12), the height of the push block (12) is consistent with the thickness of a single steel plate, one end of the push plate (11) close to the ground is provided with a transmission piece (2), the L-shaped plate (5) is provided with a transmission device (3) at one side of the conveying table (7) close to the feeding hole of the body, the conveying table (7) is further provided with a limiting piece (4) used for orderly stacking the plates.

2. Machine for bending sheet material according to claim 1, characterized in that: the transmission part (2) comprises a driving rod (13), the driving rod (13) is rotatably connected onto the bottom plate (6), the driving rod (13) is close to the side wall of one end of the push plate (11) and is provided with a long waist hole (10), the driving rod (13) is rotatably connected with the push plate (11) at the position of the long waist hole (10), the side wall of the driving rod (13) is rotatably connected with a rotating wheel (28), the rotating wheel (28) is abutted with a driving wheel (27), two L-shaped plates (5) are rotatably connected with a rotating shaft (26) at the center of the driving wheel (27), the driving wheel (27) is sleeved on the outer wall of the rotating shaft (26), one section of arc end of the driving wheel (27) is set to be V-shaped, the side wall of one end of the driving rod (13) close to the push plate (11) is provided with a pull-back part between the bottom ends of the material port, the rotating shaft (26) is fixedly connected with a motor.

3. A machine for bending sheet material according to claim 2, wherein: the pull-back piece is extension spring (14), the one end of extension spring (14) with actuating lever (13) are close to the lateral wall fixed connection of the one end of push pedal (11), the other end of extension spring (14) with slide rail (9) are close to the bottom fixed connection of material loading mouth one side.

4. A machine for bending sheet material according to claim 2, wherein: transfer device (3) include driving roller (20) and support tight roller (21), driving roller (20) rotate connect in between the vertical board of L shaped plate (5), the upper end of driving roller (20) with the upper end of conveying platform (7) flushes, the both ends of supporting roller (21) are rotated and are connected with slider (19), two the vertical board of L shaped plate (5) with spout (18) have been seted up to the upper end of driving roller (20), slider (19) sliding connection in spout (18), in spout (18) in the bottom fixedly connected with of spout (18) supports post (24), the upper end of support post (24) with the upper end of driving roller (20) flushes, slider (19) with be provided with compression spring (23) between the interior top of spout (18).

5. Plate bending machine according to claim 4, characterized in that: one is worn to establish by the one end of driving roller (20) the lateral wall of L shaped plate (5), wear out end fixedly connected with band pulley (15) of driving roller (20), pivot (26) are kept away from one is worn to establish by the one end of motor (29) the lateral wall of L shaped plate (5), wear out end fixedly connected with band pulley two (16) of pivot (26), band pulley one (15) with band pulley two (16) are located same one side of L shaped plate (5), band pulley one (15) with the cover is equipped with belt (17) on band pulley two (16).

6. Plate bending machine according to claim 4, characterized in that: a stud (22) penetrates through the upper end threads of the vertical plate of the L-shaped plate (5), one end, close to the sliding groove (18), of the stud (22) is fixedly connected with one end of the compression spring (23), and the other end of the compression spring (23) is fixedly connected with the upper end of the sliding block (19).

7. Machine for bending sheet material according to claim 1, characterized in that: l shaped plate (5) are close to one end fixedly connected with deflector (25) of material loading mouth, deflector (25) with the upper end of conveying platform (7) flushes.

8. Machine for bending sheet material according to claim 1, characterized in that: locating part (4) include gag lever post (8), gag lever post (8) fixed connection in four corners of conveying platform (7) upper end, conveying platform (7) have been seted up on being close to the lateral wall of the bottom of gag lever post (8) of material loading mouth one side transportation hole (30), the highly unanimous with the height of single steel sheet of transportation hole (30).