CN218283360U

CN218283360U - Automatic stamping equipment combination frock

Info

Publication number: CN218283360U
Application number: CN202222662851.5U
Authority: CN
Inventors: 王剑科
Original assignee: Guangdong Yiqing Electric Appliance Co ltd
Current assignee: Guangdong Yiqing Electric Appliance Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-01-13
Anticipated expiration: 2032-10-09

Abstract

The utility model discloses an automatic stamping equipment combination frock, including last unloading mechanism of punching press mechanism and centre gripping, the two can accomplish the full automatization process flow from material loading-punching press-unloading to the work piece through the cooperation. Wherein, the utility model discloses a punching press mechanism is at punching press head elevating movement's in-process, and the sleeve on the backplate can be used to play the spacing effect of direction to the punching press head to ensure that the removal route of going up the mould does not take place the offset on the horizontal direction, ensure that work piece machining precision is high. And, the utility model discloses a first cylinder drives the first elevating movement of punching press, but the piston rod of first cylinder is not direct and the first rigid connection of punching press, but through the form and the first indirect connection of punching press of intermediate junction spare such as L shape connecting piece and bar connecting piece, avoids causing structural damage to punching press head and piston rod under the punching press effort of frequent upper and lower direction, can show the life who improves punching press head and first cylinder isotructure.

Description

Automatic stamping equipment combination frock

Technical Field

The utility model relates to a stamping equipment technical field especially relates to an automatic stamping equipment makes up frock.

Background

Stamping equipment, also known as a stamping press, is sheet metal processing equipment which performs processing operations such as punching, forming, deep drawing, trimming, fine blanking, shaping, riveting, extruding and the like on a workpiece through a die. Compared with the traditional processing machinery, the stamping equipment has low technical requirements on operators and high operation efficiency, so that the stamping equipment has more and more extensive application in the field of sheet metal processing.

For example, chinese patent document No. CN214053203U discloses a cylinder folding U-shaped stamping device, which includes a main pressing plate and a side pressing plate, and the main cylinder and the auxiliary cylinder respectively drive the pressing plate and the side pressing plate to move so as to complete the stamping operation on the sheet metal part. Above structural design mode has the efficient characteristics of stamping process, but also has following defect and not enough:

(1) in the structural design mode, the punching operation is completed in a mode of directly driving the main pressing plate block or the side pressing plate block through the air cylinder, the punching paths of the two pressing plates are completely determined by the movable path of the output end of the air cylinder, and the phenomenon of position deviation is easy to occur, so that the machining error is caused;

(2) in the above structural design, the cylinder (including the main cylinder and the auxiliary cylinder) is rigidly connected to the pressure plate (including the main pressure plate block and the side pressure plate block) directly through the end of the push-out end, and the structure of the connection position is easily damaged in the case of long-time stamping use.

SUMMERY OF THE UTILITY MODEL

In order to overcome above-mentioned prior art stamping equipment's clamp plate appear offset easily and lead to the technical problem that machining precision is low, the utility model provides an automatic stamping equipment combination frock, this automatic stamping equipment combination frock have that structural design is simple reasonable, machining precision is high and long service life's characteristics.

The utility model discloses a solve the technical scheme that its problem adopted and be:

the utility model provides an automatic stamping equipment combination frock, its includes punching press mechanism, punching press mechanism includes:

the top of the workbench is fixedly provided with a side plate extending upwards, and the top of the workbench is detachably or detachably provided with a lower die;

the protective plate can be arranged on the side plate in a sliding mode along the vertical direction, a sleeve is fixedly arranged on the protective plate, and a through hole with an axis extending along the vertical direction is formed in the sleeve;

the punching head penetrates through the through hole, and the bottom end of the punching head is fixedly connected with an upper die.

In a first embodiment of the present invention, a solution for realizing the lifting movement of the driving guard plate is disclosed.

Wherein, punching press mechanism still includes the threaded rod, the fixed installation piece that is equipped with in top of curb plate, be equipped with the screw on the installation piece, the threaded rod passes from last to bottom behind the screw with backplate rotatable coupling is through rotatory the threaded rod can drive backplate elevating movement.

In a second embodiment of the present invention, a technical solution for driving a ram head to move up and down is disclosed.

The stamping mechanism further comprises a first air cylinder, the first air cylinder is fixedly arranged on the guard plate, and the first air cylinder is used for driving the stamping head to move up and down through a piston rod at the bottom of the first air cylinder.

Further, punching press mechanism still includes L shape connecting piece and bar connecting piece, the first end of L shape connecting piece with backplate rotatable coupling, the second end with piston rod rotatable coupling, the middle part with the top rotatable coupling of bar connecting piece, the bottom of bar connecting piece with the top rotatable coupling of punching press head.

Furthermore, the included angle formed between the first cylinder and the horizontal plane is 60-80 degrees.

The utility model discloses a third embodiment discloses a technical scheme about unloading mechanism's concrete structure constitution in the centre gripping in.

The automatic stamping equipment combined tool further comprises a clamping feeding and discharging mechanism, the clamping feeding and discharging mechanism comprises a cross beam and a first mounting plate, a first sliding block is fixedly arranged on a first side wall of the cross beam, a first sliding rail extending along the horizontal direction is fixedly arranged on the first mounting plate, the first sliding block is slidably connected with the first sliding rail, and a first clamping mechanism is arranged at the bottom of the first mounting plate.

Further, the feeding and discharging mechanism for clamping further comprises a second cylinder, the second cylinder is fixedly arranged on the first side wall of the cross beam, the output end of the second cylinder is fixedly connected with the first mounting plate, and the second cylinder is used for driving the first mounting plate to horizontally reciprocate.

The fourth embodiment of the present invention discloses another technical solution for the specific structural components of the clamping loading and unloading mechanism.

The feeding and discharging mechanism comprises a first mounting plate, a first sliding block is fixedly arranged on the first mounting plate, a first sliding rail extending along the horizontal direction is fixedly arranged on a first side wall of the cross beam, the first sliding block is slidably connected with the first sliding rail, and a first clamping mechanism is arranged at the bottom of the first mounting plate.

Further, unloading mechanism still includes conveyer belt mechanism and connecting block on the centre gripping, conveyer belt mechanism includes that two transfer pulleys and cover establish conveyer belt on the transfer pulley, the transfer pulley rotationally sets up through the support the top of crossbeam, the connecting block respectively with the conveyer belt second mounting panel fixed connection.

Further, the conveying belt is a belt, and the conveying wheel is a belt pulley; or the conveying belt is a chain, and the conveying wheel is a chain wheel.

To sum up, the utility model provides an automatic stamping equipment combination frock compares in prior art, has following technological effect at least:

1) In the combined tool of the automatic stamping equipment, the upper die arranged at the bottom end of the stamping head is used for completing the stamping operation on a workpiece, and the sleeve on the guard plate can be used for guiding and limiting the stamping head in the lifting motion process of the stamping head, so that the moving path of the upper die is ensured not to generate position deviation in the horizontal direction, and the processing precision of the workpiece is ensured to be high;

2) The utility model provides an automatic stamping equipment combination frock drives the punching press head elevating movement through first cylinder, but the piston rod of first cylinder is not direct and punching press head rigid connection, but through the form and the punching press head indirect connection of middle adapting unit such as L shape connecting piece and bar connecting piece, avoids causing structural damage to punching press head and piston rod under the frequent punching press effort of upper and lower direction, can show the life who improves punching press head and first cylinder;

3) The utility model provides an automatic stamping equipment combination frock still is equipped with the last unloading mechanism of centre gripping, can combine the stamping function of punching press mechanism, makes the utility model discloses can realize the work piece from the full automatization process flow of material loading-punching press-unloading, need not artifical supplementary participation, it is easy and simple to handle.

Drawings

Fig. 1 is a top view of the punching mechanism of the present invention;

FIG. 2 isbase:Sub>A schematic sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural view of the automatic stamping equipment assembly of the present invention;

fig. 4 is a front view of the clamping loading and unloading mechanism of the utility model;

fig. 5 is a rear view of the clamping loading and unloading mechanism of the utility model;

wherein the reference numerals have the following meanings:

a. a stamping mechanism; 1. a work table; 11. a side plate; 12. a lower die; 13. mounting blocks; 14. a threaded rod; 2. a guard plate; 21. a sleeve; 3. stamping a head; 31. an upper die; 4. a first cylinder; 41. a piston rod; 5. an L-shaped connector; 6. a strip-shaped connecting piece;

b. a material loading and unloading mechanism is clamped; 7. a cross beam; 71. a first slider; 72. a second cylinder; 73. a second slide rail; 8. a first mounting plate; 81. a first material clamping mechanism; 82. a first slide rail; 9. a second mounting plate; 91. a second material clamping mechanism; 92. a second slider; 93. a conveyor belt mechanism; 94. and (4) connecting the blocks.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 2, according to the embodiment of the present invention, an automatic stamping apparatus assembly includes a stamping mechanism a, the stamping mechanism a includes a workbench 1, a side plate 11 extending upward is fixedly disposed at the top of the workbench 1, and a lower die 12 is detachably or detachably disposed at the top of the workbench 1. The side plates are specifically arranged at the side edge of the top of the workbench 1, the lower die 12 is of a flat-plate structure with stamping protrusions and/or stamping grooves and is arranged at the adjacent position of the side plates 11, and the top of the lower die 12 is used for placing a workpiece to be stamped.

And, the punching mechanism a further comprises a guard plate 2, the guard plate 2 is slidably arranged on the side plate 11 along the vertical direction, a sleeve 21 is fixedly arranged on the guard plate 2, and a through hole with an axis extending along the vertical direction is arranged in the sleeve 21. Wherein, can pass through curb plate 11 and backplate 2 in proper order through external connecting part (structure such as bolt, screw or double-screw bolt) to link backplate 2 and curb plate 11 together, when needs adjust the height of backplate 2, unscrew the external connecting part between backplate 2 and curb plate 11, then go up and down to remove backplate 2 can, easy and simple to handle.

In addition, punching press mechanism a still includes punching press head 3, punching press head 3 runs through the setting in the through-hole, just the bottom fixedly connected with of punching press head 3 goes up mould 31. The bottom of the upper die 31 is provided with a stamping protrusion and/or a stamping groove corresponding to the lower die 12, and the stamping protrusion and/or the stamping groove are used for completing processing operations such as punching, shaping and extruding of a workpiece when the workpiece is pressed down.

In the technical scheme of this embodiment, the last mould 31 that the punching press head 3 bottom set up is used for accomplishing the punching press operation to the work piece, and in the in-process of punching press head 3 elevating movement, sleeve 21 on the backplate 2 can be used to play the spacing effect of direction to punching press head 3 to ensure that the shift path of last mould 31 does not take place the offset in the horizontal direction, can show the machining precision who improves the work piece.

Example 1

In the first embodiment of the present invention, a technical solution for realizing the lifting motion of the driving guard plate 2 is disclosed.

Referring to fig. 2, in the technical solution of this embodiment, the stamping mechanism a further includes a threaded rod 14, a mounting block 13 is fixedly disposed on the top of the side plate 11, a screw hole is disposed on the mounting block 13, the threaded rod 14 penetrates through the screw hole from top to bottom and is rotatably connected to the protection plate 2, and the threaded rod 14 is rotated to drive the protection plate 2 to move up and down. Particularly, the inside internal thread that is equipped with of screw on the installation piece 13, the outside of threaded rod 14 is equipped with the external screw thread, and the two meshing links together, can drive 2 elevating movement of backplate through rotatory threaded rod 14 to can realize 2 position adjustment in vertical direction of backplate according to the actual size of work piece, make the last mould 31's of punching press head 3 bottom the motion stroke can with the thickness size phase-match of the work piece of actual processing.

Example 2

In the second embodiment of the present invention, a technical solution for driving the punching head 3 to move up and down is disclosed.

Referring to fig. 2, in the technical solution of this embodiment, the stamping mechanism a further includes a first air cylinder 4, the first air cylinder 4 is fixedly disposed on the guard plate 2, and the first air cylinder 4 is used for driving the stamping head 3 to move up and down through a piston rod 41 at the bottom of the first air cylinder 4. Specifically, the piston rod 41 at the bottom of the first cylinder 4 can be directly connected with the stamping head 3, and at the moment, the piston rod 41 can directly drive the stamping head 3 to move up and down; the piston rod 41 may also be indirectly connected to the punch 3 through another connecting component, which is specifically described in the following preferred embodiments, and in this case, the effect of driving the punch 3 to move up and down may also be achieved.

Referring to fig. 2, in a preferred embodiment of the present invention, the stamping mechanism a further comprises an L-shaped connecting member 5 and a strip-shaped connecting member 6, wherein a first end of the L-shaped connecting member 5 is rotatably connected to the shield 2, a second end thereof is rotatably connected to the piston rod 41, a middle portion thereof is rotatably connected to a top end of the strip-shaped connecting member 6, and a bottom end of the strip-shaped connecting member 6 is rotatably connected to a top end of the stamping head 3. Particularly, when the piston rod 41 is driven to reciprocate by the first cylinder 4, the first end of the L-shaped connecting piece 5 can be driven to rotate around the connecting part between the second end of the L-shaped connecting piece 5 and the guard plate 2, so that the bar-shaped connecting piece 6 is driven to swing, and the stamping head 3 at the bottom of the bar-shaped connecting piece 6 is driven to move up and down. More specifically, through above structural design mode, can avoid the direct rigid connection of piston rod 41 and the ram head 3 of first cylinder 4, prevent that ram head 3 and piston rod 41 from taking place structural damage because of the interaction force at frequent lift in-process, can show improvement structure life.

In another preferable scheme of the embodiment, the included angle formed between the first air cylinder 4 and the horizontal plane is 60-80 degrees. Specifically, in the present embodiment, the L-shaped connecting member 5 and the bar-shaped connecting member 6 are used as the intermediate connecting member between the piston rod 41 of the first cylinder 4 and the punch 3, and a moving space needs to be provided for the rotation of the L-shaped connecting member 5 and the swinging of the bar-shaped connecting member 6 during the transmission process, so that the first cylinder 4 is arranged in an inclined manner, the space utilization rate of the guard plate 2 can be maximally improved, and the installation space can be saved.

Example 3

The third embodiment of the present invention discloses a technical solution for the specific structure of the clamping feeding and discharging mechanism b.

Referring to fig. 3 to 5, the automatic stamping equipment combined tool further includes a clamping and feeding and discharging mechanism b, and the clamping and feeding and discharging mechanism b is arranged at an adjacent position of the stamping mechanism a and is used for feeding and discharging workpieces of the stamping mechanism a.

In the technical scheme of this embodiment, the clamping feeding and discharging mechanism b includes a cross beam 7 and a first mounting plate 8, a first sliding block 71 is fixedly arranged on a first side wall of the cross beam 7, a first sliding rail 82 extending along the horizontal direction is fixedly arranged on the first mounting plate 8, the first sliding block 71 is slidably connected with the first sliding rail 82, and a first material clamping mechanism 81 is arranged at the bottom of the first mounting plate 8. Wherein, be equipped with first pneumatic fixture on the first material clamping mechanism 81, this first pneumatic fixture is used for accomplishing the material loading operation of treating the punching press work piece and the unloading operation of punching press work piece, combines punching press mechanism a's punching press function, can make the utility model discloses an automatic stamping equipment combination frock realizes the full automatization process flow to work piece from material loading-punching press-unloading, need not artifical supplementary participation. More specifically, because first slider 71 and first slide rail 82 sliding connection, the first material mechanism 81 that presss from both sides on the event first mounting panel 8 can follow horizontal direction reciprocating motion to make first material mechanism 81 that presss from both sides can adopt the centre gripping work piece and remove the mode of carrying and accomplish the material loading and the unloading operation to the work piece respectively, the utility model discloses a but this structural design mode adaptation in the work piece of shape such as flat-plate, rod-like, bar-like, can not receive the restriction of the concrete shape of work piece, so extensive applicability can satisfy the user to the variety processing demand of work piece.

Referring to fig. 4 and 5, in a preferred embodiment of the present invention, the clamping loading and unloading mechanism b further includes a second cylinder 72, the second cylinder 72 is fixedly disposed on the first side wall of the cross beam 7, an output end of the second cylinder 72 is fixedly connected to the first mounting plate 8, and the second cylinder 72 is configured to drive the first mounting plate 8 to horizontally reciprocate. Specifically, the second cylinder 72 drives the first mounting plate 8 to perform horizontal reciprocating motion through the output end thereof, so as to adjust the position of the first clamping mechanism 81 (and the first pneumatic clamp thereof) on the first mounting plate 8 in the horizontal direction, and perform feeding and discharging operations during the reciprocating motion.

Example 4

The fourth embodiment of the present invention discloses another technical solution for the specific structure of the material feeding and discharging mechanism b.

Referring to fig. 4 and 5, in the technical solution of this embodiment, the clamping loading and unloading mechanism b further includes a second mounting plate 9, a second slider 92 is fixedly disposed on the second mounting plate 9, a second slide rail 73 extending along the horizontal direction is fixedly disposed on a second side wall of the cross beam 7, the second slider 92 and the second slide rail 73 are slidably connected, and a second clamping mechanism 91 is disposed at the bottom of the second mounting plate 9. The second material clamping mechanism 91 is also provided with a second pneumatic fixture, the second pneumatic fixture is used for cooperating with the first material clamping mechanism 81 to complete the feeding operation of a workpiece to be punched and the blanking operation of the punched workpiece, and under the conditions of high requirement on processing efficiency and large workpiece quantity, the first material clamping mechanism 81 and the second material clamping mechanism 91 can be simultaneously controlled to sequentially and alternately complete the feeding operation and the blanking operation of the workpiece. Particularly, make first material mechanism 81 and the punching press function that second material mechanism 91 combines punching press mechanism a, can further realize the utility model discloses an automatic stamping equipment combination frock realizes the full automatization process flow to work piece from material loading-punching press-unloading, need not artifical supplementary participation. Similarly, because the second slider 92 and the second slide rail 73 are slidably connected, the second clamping mechanism 91 on the second mounting plate 9 can reciprocate along the horizontal direction, so that the second clamping mechanism 91 can respectively complete the feeding and discharging operations of the workpiece in a workpiece clamping and moving conveying manner, and is not limited by the specific shape of the workpiece, and the applicability is strong.

Referring to fig. 4 and 5, in a further scheme of this embodiment, the clamping loading and unloading mechanism b further includes a conveyor belt mechanism 93 and a connection block 94, the conveyor belt mechanism 93 includes two conveyor wheels and a conveyor belt sleeved on the conveyor wheels, the conveyor wheels are rotatably disposed on the top of the cross beam 7 through a bracket, and the connection block 94 is fixedly connected to the conveyor belt and the second mounting plate 9, respectively. In the further technical solution, one of the transmission wheels of the transmission belt mechanism 93 can be driven to rotate by an external servo motor, so as to drive the transmission belt to horizontally convey, thereby driving the other transmission wheel to rotate and the connecting block 94 to horizontally move, and finally realizing the position adjustment of the second material clamping mechanism 91 (and the second pneumatic clamp thereof) on the second mounting plate 9 in the horizontal direction, thereby completing the feeding and discharging operations of the workpiece.

In a further aspect of this embodiment, the conveyor belt may preferably be a belt, and the conveyor wheel may preferably be a pulley, which drives the belt to horizontally convey and the connecting block 94 to horizontally move by friction.

Alternatively, the conveyor belt may preferably be a chain, and the conveyor wheel may preferably be a sprocket wheel which drives the chain to horizontally convey and the connecting block 94 to horizontally move by the meshing force.

To sum up, the utility model provides an among the automatic stamping equipment combination frock, the last mould 31 that 3 bottoms of punching press head set up is used for accomplishing the punching press operation to the work piece, and at 3 elevating movement's of punching press head in-process, sleeve 21 on the backplate 2 can be used to play the spacing effect of direction to punching press head 3 to ensure that the removal route of last mould 31 does not take place the offset on the horizontal direction, ensure that work piece machining precision is high. And, the utility model discloses a piston rod 41 drive punching press head 3 elevating movement of first cylinder 4, but piston rod 41 of first cylinder 4 is not direct and 3 rigid connection of punching press, but through the form and the punching press head 3 indirect connection of middle adapting unit such as L shape connecting piece 5 and bar connecting piece 6, avoids causing structural damage to punching press head 3 and piston rod 41 under the stamping effort of frequent upper and lower direction, can show the life who improves punching press head 3 and first cylinder 4. Furthermore, the utility model provides an automatic stamping equipment combination frock still is equipped with unloading mechanism b on the centre gripping, can combine punching press mechanism a's stamping function, makes the utility model discloses can realize the work piece from the full automatization process flow of material loading-punching press-unloading, need not artifical supplementary participation, it is easy and simple to handle.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. The utility model provides an automatic stamping equipment combination frock which characterized in that, includes punching press mechanism, punching press mechanism includes:

2. The automatic stamping equipment combination tool of claim 1, characterized in that, the punching press mechanism still includes the threaded rod, the fixed installation piece that is equipped with in top of curb plate, be equipped with the screw on the installation piece, the threaded rod from last to passing down behind the screw with backplate rotatable coupling, through rotatory the threaded rod can drive backplate elevating movement.

3. The automatic stamping equipment combination tool of claim 1, wherein the stamping mechanism further comprises a first air cylinder, the first air cylinder is fixedly arranged on the guard plate, and the first air cylinder is used for driving the stamping head to move up and down through a piston rod at the bottom of the first air cylinder.

4. The automatic stamping equipment combination frock of claim 3, characterized in that, the punching press mechanism still includes L shape connecting piece and bar connecting piece, the first end of L shape connecting piece with backplate rotatable coupling, second end and the piston rod rotatable coupling, middle part and the top rotatable coupling of bar connecting piece, the bottom of bar connecting piece with the top rotatable coupling of punching press head.

5. The automatic punching equipment combined tool according to claim 4, wherein an included angle formed between the first cylinder and a horizontal plane is 60-80 °.

6. The automatic stamping equipment combined tool as claimed in claim 1, further comprising a clamping loading and unloading mechanism, wherein the clamping loading and unloading mechanism includes a cross beam and a first mounting plate, a first sliding block is fixedly arranged on a first side wall of the cross beam, a first sliding rail extending in a horizontal direction is fixedly arranged on the first mounting plate, the first sliding block and the first sliding rail are slidably connected, and a first clamping mechanism is arranged at the bottom of the first mounting plate.

7. The automatic stamping equipment combination frock of claim 6, characterized in that, the last unloading mechanism of centre gripping still includes the second cylinder, the fixed setting of second cylinder is in the first lateral wall of crossbeam, and the output of second cylinder and first mounting panel fixed connection, the second cylinder is used for driving first mounting panel horizontal reciprocating motion.

8. The automatic stamping equipment combination frock of claim 6, characterized in that, the last unloading mechanism of centre gripping still includes the second mounting panel, the fixed second slider that is equipped with on the second mounting panel, the fixed second slide rail that extends along the horizontal direction that is equipped with of second lateral wall of crossbeam, but second slider and second slide rail sliding connection, the bottom of second mounting panel is equipped with the second and presss from both sides material mechanism.

9. The automatic stamping equipment combination tool of claim 8, wherein the clamping loading and unloading mechanism further comprises a conveyor belt mechanism and a connecting block, the conveyor belt mechanism comprises two conveying wheels and a conveyor belt sleeved on the conveying wheels, the conveying wheels are rotatably arranged at the top of the cross beam through a support, and the connecting block is fixedly connected with the conveyor belt and the second mounting plate respectively.

10. The automatic stamping equipment combination tool of claim 9, wherein the conveyor belt is a belt and the conveyor wheel is a belt pulley; or the conveying belt is a chain, and the conveying wheel is a chain wheel.