CN215940668U

CN215940668U - Optical image measuring instrument with screening function

Info

Publication number: CN215940668U
Application number: CN202122472546.5U
Authority: CN
Inventors: 彭扬清; 陈炳光; 赖泽帆
Original assignee: Huizhou City Hongtai Optical Instrument Co ltd
Current assignee: Huizhou City Hongtai Optical Instrument Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-03-04
Anticipated expiration: 2031-10-13

Abstract

The application relates to the technical field of image measuring instrument, and discloses an optics image measuring instrument with screening function, including unloading platform, turning device, two optics image measuring instruments and two sieving mechanism, two the sieving mechanism is the interval setting, turning device is located between two sieving mechanism, and turning device's both ends laminate with the one end of two sieving mechanism respectively mutually, the unloading platform is located a sieving mechanism's the other end and laminates rather than mutually, two optics image measuring instrument sets up the top at two sieving mechanism respectively. The utility model has the advantages that: through the setting of turning device, can overturn the work piece for the two sides of work piece can both detect, makes the testing result more accurate, has improved the rate of accuracy of screening.

Description

Optical image measuring instrument with screening function

Technical Field

The application relates to the technical field of image measuring instruments, in particular to an optical image measuring instrument with a screening function.

Background

An optical image measuring instrument, namely a machine vision detector, adopts an industrial camera to convert a detected target into an image signal, converts the image signal into a digital signal according to information such as pixel distribution, brightness, color and the like, an image processing system performs various operations on the signal to extract the characteristics of the target, such as area, quantity, position and length, and outputs results according to preset allowance and other conditions, including size, number, qualification/disqualification, presence/absence and the like, so that the automatic detection and identification function is realized.

The existing optical image measuring instrument can only detect one surface of a workpiece, and is difficult to detect the upper surface and the lower surface of the workpiece, so that the detection result is incomplete, and screening is omitted.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an optics image measuring apparatu with screening function, including unloading platform, turning device, two optics image measuring apparatu and two sieving mechanism, two the sieving mechanism is the interval setting, turning device is located between two sieving mechanism, and turning device's both ends laminate with the one end of two sieving mechanism respectively mutually, the unloading platform is located a sieving mechanism's the other end and laminates mutually rather than, two optics image measuring apparatu sets up the top at two sieving mechanism respectively.

Further, the turnover device comprises a vertical seat, a fixed seat, a screw rod sliding table, an insertion block, an L-shaped plate, a T-shaped block, a moving assembly, a rotating assembly and two turnover plates, wherein the vertical seat and the fixed seat are respectively positioned at two sides of the two screening devices, the screw rod sliding table is vertically arranged at the top of the vertical seat, the insertion block is arranged at the moving end of the screw rod sliding table, the L-shaped plate is arranged at the top of the fixed seat in a sliding manner, the moving assembly is arranged on the outer wall of the L-shaped plate, the rotating assembly is rotatably arranged on the side wall of the L-shaped plate, the T-shaped block is arranged on the inner top wall of the L-shaped plate, the two turnover plates are vertically symmetrically positioned between the screw rod sliding table and the L-shaped plate, one turnover plate is inserted with the T-shaped block and positioned in the rotating assembly, the other turnover plate is positioned between the two screening devices, and two ends of the turnover plates are respectively attached to the two screening devices, each side wall of the turnover plate is provided with two symmetrically arranged insertion pieces, and the two insertion pieces are inserted and matched with the insertion blocks.

Further, the movable assembly comprises a movable seat, a movable motor and a movable gear, the movable seat is arranged on the outer wall of the L-shaped plate, the movable seat is located at the top of the fixed seat, the rack is arranged at the top of the fixed seat, the movable motor is arranged at the top of the movable seat, the movable gear is arranged at the output end of the movable motor, and the movable gear is meshed with the rack.

Further, rotating assembly includes rotating electrical machines, rotary disk and spacing frame, the rotary disk rotates and sets up on the lateral wall of L template, rotating electrical machines installs on the lateral wall of L template, and rotating electrical machines's output runs through L template and rotary disk fixed connection, spacing frame sets up on the lateral wall of rotary disk, and a returning face plate is located spacing frame.

Furthermore, each screening device comprises a conveyor belt, an ash removal component and a pushing component, the conveyor belt is positioned between the blanking table and another turnover plate, two ends of the conveyor belt are respectively attached to the blanking table and another turnover plate, the ash removal component and the pushing component are arranged at the top of the conveyor belt and are respectively positioned at two sides of the optical image measuring instrument, the ash removal component comprises an ash removal frame, a lifting cylinder, an ash removal frame, a blowing head, four telescopic rods, four springs and four abutting contacts, the ash removal frame is arranged at the top of the conveyor belt and is positioned between the conveyor belt and the ash removal frame, the lifting cylinder is arranged at the top of the ash removal frame, the output end of the lifting cylinder penetrates through the ash removal frame and is fixedly connected with the ash removal frame, the blowing head is arranged on the inner bottom wall of the ash removal frame, and the output end of the blowing head penetrates through the ash removal frame and extends downwards, four the telescopic link is the matrix setting in the bottom of deashing frame, four the conflict head sets up respectively in the bottom of four telescopic links, four the spring is established respectively on four telescopic links, every the both ends of spring respectively with deashing frame and conflict head fixed connection.

Further, the promotion subassembly includes riser, push cylinder, promotes piece, swash plate and storage box, the riser is the top that the interval set up at the conveyer belt with the swash plate, the storage box is located the side of conveyer belt, and the storage box is located the below of swash plate, it is located the top of conveyer belt to promote the piece, push cylinder sets up on the lateral wall of riser, and push cylinder's output runs through the riser and promotes a fixed connection.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

firstly, the two insertion pieces on the turnover plate are arranged in an insertion matching manner with the insertion block, so that the screw rod sliding table can drive the turnover plate and the workpiece below to move upwards until the turnover plate below and the turnover plate above clamp and fix the workpiece, then the movable motor drives the movable gear to rotate on the rack, so as to drive the movable seat and the L-shaped plate to move on the fixed seat, so that the turnover plate and the workpiece below are both positioned in the limit frame, the rotary motor drives the rotary disk to rotate, so as to drive the limit frame to rotate for 180 degrees, so that the turnover plate below is separated from the insertion block, the turnover plate above is separated from the T-shaped block, the turnover plate below is inserted with the T-shaped block, the upward surface of the workpiece is turned downwards, then the movable motor drives the L-shaped plate to move backwards, so that the turnover plate bearing the workpiece is separated from the turnover plate above and the limit frame and is inserted with the insertion block, the work piece after lead screw slip table drive grafting piece area returning face plate and upset descends to between two conveyer belts to, and the work piece after will overturning is crowded to another conveyer belt through the work piece that next removal was come and is carried out the deashing and detect to can both detect the two sides of work piece, make the testing result more accurate, improve the rate of accuracy of screening.

Secondly, when the work piece removed to deashing frame below, lift cylinder drive deashing frame descends for four are supported the contact and are fixed the work piece on the conveyer belt, through the setting of spring and telescopic link, make to support the contact and when supporting the pressure work piece, can not cause the damage to the work piece, later blow the head and blow to the work piece, blow off piece, the dust on the work piece is whole, make the work piece when examining, can not lead to the testing result unqualified because of the existence of piece or dust.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the turning device of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is a perspective view of the rotary assembly of the present invention;

FIG. 6 is a schematic perspective view of a screening apparatus according to the present invention;

FIG. 7 is a schematic perspective view of the ash removal assembly of the present invention;

fig. 8 is a perspective view of the pushing assembly of the present invention.

In the figure: the device comprises a blanking table 1, a turnover device 2, a vertical seat 21, a fixed seat 22, a screw rod sliding table 23, an insertion block 24, an L-shaped plate 25, a T-shaped block 26, a moving component 27, a moving seat 271, a moving motor 272, a moving gear 273, a rotating component 28, a rotating motor 281, a rotating disk 282, a limiting frame 283, a turnover plate 29, an insertion piece 210, a rack 211, an optical image measuring instrument 3, a screening device 4, a conveyor belt 41, an ash cleaning component 42, an ash cleaning frame 421, a lifting cylinder 422, an ash cleaning frame 423, a blowing head 424, an expansion rod 425, a spring 426, an abutting head 427, a pushing component 43, a vertical plate 431, a pushing cylinder 432, a pushing block 433, an inclined plate 434 and a storage box 435.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

This embodiment, as shown in fig. 1 to 8, an optical image measuring instrument with screening function, including unloading platform 1, turning device 2, two optical image measuring instruments 3 and two sieving mechanism 4, two sieving mechanism 4 is the interval setting, turning device 2 is located between two sieving mechanism 4, and turning device 2's both ends laminate with the one end of two sieving mechanism 4 respectively mutually, unloading platform 1 is located the other end of a sieving mechanism 4 and laminates rather than mutually, two optical image measuring instruments 3 set up respectively at the top of two sieving mechanism 4.

Specifically, turning device 2 includes perpendicular seat 21, fixing base 22, lead screw slip table 23, grafting piece 24, L template 25, T type piece 26, removal subassembly 27, rotating assembly 28 and two returning face plates 29, perpendicular seat 21 is located two sieving mechanism 4's both sides respectively with fixing base 22, lead screw slip table 23 is vertical setting at the top of perpendicular seat 21, grafting piece 24 sets up on the removal end of lead screw slip table 23, L template 25 slides and sets up the top at fixing base 22, removal subassembly 27 sets up on L template 25's outer wall, rotating assembly 28 rotates and sets up on L template 25's lateral wall, T type piece 26 sets up on L template 25's interior roof, two the returning face plate 29 is upper and lower symmetry and is located between lead screw slip table 23 and the L template 25, a returning face plate 29 pegs graft and is located rotating assembly 28 with T type piece 26 mutually, the other turnover plate 29 is positioned between the two screening devices 4, two ends of the turnover plate 29 are respectively attached to the two screening devices 4, two plug-in sheets 210 which are symmetrically arranged are arranged on the side wall of each turnover plate 29, the two plug-in sheets 210 are in plug-in fit with the plug-in blocks 24, a workpiece is placed on one screening device 4 for detection, after the detection of one side of the workpiece facing upwards is completed, the screening device 4 moves the workpiece to the turnover plate 29 below, the two plug-in sheets 210 on the turnover plate 29 are in plug-in fit with the plug-in blocks 24, so that the screw rod sliding table 23 can drive the turnover plate 29 below and the workpiece to move upwards until the turnover plate 29 below and the turnover plate 29 above clamp and fix the workpiece, then the moving assembly 27 drives the L-shaped plate 25 to move forwards, and the turnover plate 29 below and the workpiece are both positioned in the rotating assembly 28, the rotating assembly 28 is driven to rotate, the lower turnover plate 29 is separated from the inserting block 24, the upper turnover plate 29 is separated from the T-shaped block 26, the lower turnover plate 29 is inserted into the T-shaped block 26, the workpiece is turned over upwards to be downward, then the moving assembly 27 drives the L-shaped plate 25 to move backwards, the turnover plate 29 bearing the workpiece is separated from the upper turnover plate 29 and the rotating assembly 28 and is inserted into the inserting block 24, the screw rod sliding table 23 drives the inserting block 24 to drive the turnover plate 29 and the turned workpiece to descend between the two screening devices 4, the turned workpiece is extruded to the other screening device 4 through the next moved workpiece to be detected, both sides of the workpiece can be detected, and the detection result is more accurate.

Specifically, the moving assembly 27 includes a moving seat 271, a moving motor 272 and a moving gear 273, the moving seat 271 is disposed on the outer wall of the L-shaped plate 25, the moving seat 271 is located at the top of the fixing seat 22, the rack 211 is disposed at the top of the fixing seat 22, the moving motor 272 is mounted at the top of the moving seat 271, the moving gear 273 is mounted at the output end of the moving motor 272, the moving gear 273 is engaged with the rack 211, and when the L-shaped plate 25 is required to move, the moving motor 272 drives the moving gear 273 to rotate on the rack 211, so as to drive the moving seat 271 and the L-shaped plate 25 to move on the fixing seat 22.

Specifically, the rotating assembly 28 includes a rotating motor 281, a rotating plate 282 and a limit frame 283, the rotating plate 282 is rotatably disposed on the side wall of the L-shaped plate 25, the rotating motor 281 is mounted on the side wall of the L-shaped plate 25, and the output end of the rotating motor 281 is fixedly connected to the rotating plate 282 through the L-shaped plate 25, the limit frame 283 is disposed on the side wall of the rotating plate 282, and one of the turnover plates 29 is located in the limit frame 283, the L-shaped plate 25 moves forward, so that the limit frame 283 drives one turnover plate 29 to move, so that the other turnover plate 29 which is lifted up is located in the limit frame 283, and then the rotating motor 281 drives the rotating plate 282 to rotate to drive the limit frame 283 to rotate by 180 degrees, so that the two turnover plates 29 are turned over, the upward surface of the workpiece faces downward, and the work piece is turned over.

Specifically, each screening device 4 comprises a conveyor belt 41, an ash removal assembly 42 and a pushing assembly 43, the conveyor belt 41 is located between the blanking table 1 and the other turnover plate 29, two ends of the conveyor belt 41 are respectively attached to the blanking table 1 and the other turnover plate 29, the ash removal assembly 42 and the pushing assembly 43 are both arranged at the top of the conveyor belt 41, the ash removal assembly 42 and the pushing assembly 43 are respectively located at two sides of the optical image measuring instrument 3, the ash removal assembly 42 comprises an ash removal frame 421, a lifting cylinder 422, an ash removal frame 423, a blowing head 424, four telescopic rods 425, four springs 426 and four contact terminals 427, the ash removal frame 421 is arranged at the top of the conveyor belt 41, the ash removal frame 423 is located between the conveyor belt 41 and the ash removal frame 421, the lifting cylinder 422 is arranged at the top of the ash removal frame 421, and the output end of the lifting cylinder 422 penetrates through the ash removal frame 421 and is fixedly connected with the ash removal frame 423, the blowing head 424 is arranged on the inner bottom wall of the ash cleaning frame 423, the output end of the blowing head 424 penetrates through the ash cleaning frame 423 and extends downwards, four telescopic rods 425 are arranged at the bottom of the ash cleaning frame 423 in a matrix manner, four abutting heads 427 are respectively arranged at the bottoms of the four telescopic rods 425, four springs 426 are respectively sleeved on the four telescopic rods 425, two ends of each spring 426 are respectively fixedly connected with the ash cleaning frame 423 and the abutting heads 427, a workpiece is placed on the conveyor belt 41, when the workpiece moves to the position below the ash cleaning frame 421, the lifting cylinder 422 drives the ash cleaning frame 423 to descend, so that the four abutting heads 427 fix the workpiece on the conveyor belt 41, through the arrangement of the springs 426 and the telescopic rods 425, the abutting heads 427 cannot damage the workpiece when abutting against the workpiece, and then the blowing head 424 blows air to the workpiece to completely blow off debris and dust on the workpiece, when the work piece is detected, the detection result is not unqualified due to the existence of chips or dust, after the ash removal is completed, the work piece is moved to the optical image measuring instrument 3 by the conveyor belt 41 for detection, after the detection is qualified, the work piece is moved to the blanking table 1 by the conveyor belt 41 for blanking, and when the detection is unqualified, the work piece is pushed out by the pushing assembly 43 for collection, so that the screening of the work piece is completed.

Specifically, the pushing assembly 43 comprises a vertical plate 431, a pushing cylinder 432, a pushing block 433, an inclined plate 434 and a storage box 435, wherein the vertical plate 431 and the inclined plate 434 are arranged at the top of the conveyor belt 41 at intervals, the storage box 435 is arranged beside the conveyor belt 41 and below the inclined plate 434, the pushing block 433 is arranged above the conveyor belt 41, the pushing cylinder 432 is arranged on the side wall of the vertical plate 431, the output end of the pushing cylinder 432 penetrates through the vertical plate 431 and the pushing block 433 and is fixedly connected with the vertical plate 431, when unqualified workpieces are detected, the pushing cylinder 432 drives the pushing plate to move towards the inclined plate 434, the unqualified workpieces are pushed to the inclined plate 434 by the conveyor belt 41, and the unqualified workpieces fall into the storage box 435 through the inclined plate 434 to be collected.

The working process of the embodiment of the application is as follows: the workpiece is placed on the conveyor belt 41, when the workpiece moves to the lower part of the dust cleaning frame 421, the lifting cylinder 422 drives the dust cleaning frame 423 to descend, so that the four abutting heads 427 fix the workpiece on the conveyor belt 41, the abutting heads 427 cannot damage the workpiece when abutting against the workpiece through the arrangement of the springs 426 and the telescopic rods 425, then the air blowing head 424 blows air to the workpiece, scraps and dust on the workpiece are all blown off, so that the detection result is not unqualified due to the existence of the scraps or dust when the workpiece is detected, after the dust cleaning is completed, the conveyor belt 41 transfers the workpiece to the optical image measuring instrument 3 for detection, when the detection of the upward side of the workpiece is completed, the conveyor belt 41 moves the workpiece to the turnover plate 29 below, and through the insertion and matching arrangement of the two insertion pieces 210 on the turnover plate 29 and the insertion pieces 24, the screw rod 23 can drive the turnover plate 29 and the workpiece below to move upwards, until the lower turnover plate 29 and the upper turnover plate 29 clamp and fix the workpiece, then the moving motor 272 drives the moving gear 273 to rotate on the rack 211, thereby driving the moving seat 271 and the L-shaped plate 25 to move on the fixed seat 22, so that the lower turnover plate 29 and the workpiece are both positioned in the limit frame 283, the rotating motor 281 drives the rotating disc 282 to rotate, so as to drive the limit frame 283 to rotate for 180 degrees, so that the lower turnover plate 29 is separated from the inserting block 24, the upper turnover plate 29 is separated from the T-shaped block 26, the lower turnover plate 29 is inserted into the T-shaped block 26, the upward surface of the workpiece is turned downwards, then the moving motor 272 drives the L-shaped plate 25 to move backwards, so that the turnover plate 29 bearing the workpiece is separated from the upper turnover plate 29 and the limit frame 283 and is inserted into the inserting block 24, the screw sliding table 23 drives the inserting block 24 to drive the overturning plate 29 and the turned workpiece to descend to between the two conveyor belts 41, the work piece after will overturning through the work piece that next removed squeezes to carrying out deashing and detection on another conveyer belt 41 to can both detect the two sides of work piece, after detecting qualified, conveyer belt 41 moves the work piece and transports to unloading platform 1 department and carries out the unloading, when detecting out unqualified work piece, push cylinder 432 drive slurcam moves to swash plate 434 direction, will unqualified work piece by the conveyer belt 41 on promote to swash plate 434 department, and drop to in storage box 435 through swash plate 434, collect.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The utility model provides an optical image measuring apparatu with screening function which characterized in that: including unloading platform (1), turning device (2), two optical image measuring apparatu (3) and two sieving mechanism (4), two sieving mechanism (4) are the interval and set up, turning device (2) are located between two sieving mechanism (4), and the both ends of turning device (2) laminate with the one end of two sieving mechanism (4) respectively mutually, unloading platform (1) is located the other end of a sieving mechanism (4) and laminates mutually rather than, two optical image measuring apparatu (3) set up the top at two sieving mechanism (4) respectively.

2. The optical image measuring instrument with screening function of claim 1, wherein: the turnover device (2) comprises a vertical seat (21), a fixed seat (22), a screw rod sliding table (23), an inserting block (24), an L-shaped plate (25), a T-shaped block (26), a moving assembly (27), a rotating assembly (28) and two turnover plates (29), wherein the vertical seat (21) and the fixed seat (22) are respectively positioned at two sides of two screening devices (4), the screw rod sliding table (23) is vertically arranged at the top of the vertical seat (21), the inserting block (24) is arranged at the moving end of the screw rod sliding table (23), the L-shaped plate (25) is arranged at the top of the fixed seat (22) in a sliding manner, the moving assembly (27) is arranged on the outer wall of the L-shaped plate (25), the rotating assembly (28) is rotatably arranged on the side wall of the L-shaped plate (25), the T-shaped block (26) is arranged on the inner top wall of the L-shaped plate (25), and the two turnover plates (29) are symmetrically positioned between the sliding table (23) and the L-shaped plate (25), a returning face plate (29) is pegged graft mutually with T type piece (26) and is located rotating assembly (28), and another returning face plate (29) is located between two sieving mechanism (4), and the both ends of returning face plate (29) laminate mutually with two sieving mechanism (4) respectively, every all install on the lateral wall of returning face plate (29) and be two inserted sheets (210) that the symmetry set up, and two inserted sheets (210) all with inserted block (24) cooperation of pegging graft.

3. The optical image measuring instrument with screening function of claim 2, wherein: remove subassembly (27) including removing seat (271), mobile motor (272) and removal gear (273), remove seat (271) and set up on the outer wall of L template (25), and remove seat (271) and be located the top of fixing base (22), rack (211) have been seted up at the top of fixing base (22), the top at removing seat (271) is installed in mobile motor (272), install on the output of mobile motor (272) removal gear (273), it meshes with rack (211) to remove gear (273).

4. The optical image measuring instrument with screening function of claim 2, wherein: the rotating assembly (28) comprises a rotating motor (281), a rotating disc (282) and a limiting frame (283), wherein the rotating disc (282) is rotatably arranged on the side wall of the L-shaped plate (25), the rotating motor (281) is arranged on the side wall of the L-shaped plate (25), the output end of the rotating motor (281) penetrates through the L-shaped plate (25) and is fixedly connected with the rotating disc (282), the limiting frame (283) is arranged on the side wall of the rotating disc (282), and one overturning plate (29) is positioned in the limiting frame (283).

5. The optical image measuring instrument with screening function of claim 1, wherein: each screening device (4) comprises a conveyor belt (41), an ash cleaning component (42) and a pushing component (43), the conveyor belt (41) is located between the blanking table (1) and the other turnover plate (29), two ends of the conveyor belt (41) are respectively attached to the blanking table (1) and the other turnover plate (29), the ash cleaning component (42) and the pushing component (43) are arranged at the top of the conveyor belt (41), the ash cleaning component (42) and the pushing component (43) are respectively located on two sides of the optical image measuring instrument (3), the ash cleaning component (42) comprises an ash cleaning frame (421), a lifting cylinder (422), an ash cleaning frame (423), a blowing head (424), four telescopic rods (425), four springs (426) and four abutting contacts (427), the ash cleaning frame (421) is arranged at the top of the conveyor belt (41), and the ash cleaning frame (423) is located between the conveyor belt (41) and the ash cleaning frame (421), the utility model discloses a dust cleaning device, including four telescopic links, lift cylinder (422), and the output of lift cylinder (422) runs through deashing frame (421) and deashing frame (423) fixed connection, blow head (424) and set up on the interior diapire of deashing frame (423), and the output of blowing head (424) runs through deashing frame (423) and downwardly extending, four telescopic link (425) are the matrix and set up the bottom at deashing frame (423), four it sets up the bottom at four telescopic link (425) respectively to support contact (427), four spring (426) are established respectively on four telescopic link (425), every the both ends of spring (426) respectively with deashing frame (423) and support head (427) fixed connection.

6. The optical image measuring instrument with screening function of claim 5, wherein: promote subassembly (43) including riser (431), push cylinder (432), promote piece (433), swash plate (434) and storage box (435), riser (431) are the top that the interval set up at conveyer belt (41) with swash plate (434), storage box (435) are located the side of conveyer belt (41), and storage box (435) are located the below of swash plate (434), it is located the top of conveyer belt (41) to promote piece (433), push cylinder (432) set up on the lateral wall of riser (431), and the output that pushes cylinder (432) runs through riser (431) and promotes piece (433) fixed connection.