CN112999778B

CN112999778B - Vacuum-pumping machine

Info

Publication number: CN112999778B
Application number: CN202110179661.5A
Authority: CN
Inventors: 吴钰东; 吴建明; 王习华; 王振坤
Original assignee: Shenzhen Sincerity Technology Co ltd
Current assignee: Shenzhen Sincerity Technology Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2022-08-16
Anticipated expiration: 2041-02-07
Also published as: CN112999778A

Abstract

The utility model belongs to the technical field of the technique of evacuation equipment and specifically relates to a vacuum extractor is related to, including real empty room, set up the swing gate on real empty room and set up the vacuum pump on real empty room, the rack has been placed in real empty room, real empty room includes the shell and sets up the inner shell on the shell, be provided with the vacuum cavity between inner shell and the shell, vacuum pump and vacuum cavity intercommunication, set up the runner hole that is used for the evacuation on the inner shell, runner hole and vacuum cavity intercommunication, be provided with supplementary loading attachment on the shell, supplementary loading attachment is including rotating the dwang that cooperates on the shell and setting up the supplementary flitch of going up on the dwang, the one end on the supplementary flitch and the high parallel and level setting of upper surface of inner shell bottom plate, be provided with on the other end of supplementary flitch along keeping away from the ascending inclined plane of the direction upwarp. This application has the removal that makes the rack in to the vacuum chamber comparatively convenient, reduces artifical intensity of labour's effect.

Description

Vacuum-pumping machine

Technical Field

The application relates to the technical field of vacuum-pumping equipment, in particular to a vacuum-pumping machine.

Background

At present, a vacuum pumping machine adopts a mechanical pumping mode to pump out gas in an object, so that the object is further processed and used after the interior of the object reaches a preset vacuum degree. The vacuum-pumping machine is generally composed of a vacuum pump, a vacuum chamber, a power indicator, a start-stop switch and other components, and when the vacuum-pumping machine works, the vacuum pump carries out vacuum-pumping treatment on the vacuum chamber.

The existing vacuum-pumping machine is usually installed on the ground, and when the vacuum-pumping machine is used, a worker puts articles on a placing rack with moving wheels, and then pushes the placing rack into a vacuum chamber for vacuum-pumping treatment.

Aiming at the related technology, when the height difference exists between the vacuum chamber and the ground, the inventor thinks that the defects of inconvenient movement of the placing frame into the vacuum chamber and high labor intensity exist.

Disclosure of Invention

In order to make the rack comparatively convenient to the removal in the vacuum chamber, reduce artifical intensity of labour, this application provides the evacuation machine.

The application provides a vacuum extractor adopts following technical scheme:

the vacuum pumping machine comprises a vacuum chamber, a rotating door arranged on the vacuum chamber and a vacuum pump arranged on the vacuum chamber, wherein a placing rack is placed in the vacuum chamber, the vacuum chamber comprises an outer shell and an inner shell arranged on the outer shell, a vacuum cavity is arranged between the inner shell and the outer shell, the vacuum pump is communicated with the vacuum cavity, a circulation hole used for vacuum pumping is formed in the inner shell, the circulation hole is communicated with the vacuum cavity, an auxiliary feeding device is arranged on the outer shell, the auxiliary feeding device comprises a rotating rod and an auxiliary feeding plate, the rotating rod is rotatably matched with the outer shell, the auxiliary feeding plate is arranged on the rotating rod, one end of the auxiliary feeding plate is arranged on the upper surface of a bottom plate of the inner shell in a flush mode, and the other end of the auxiliary feeding plate is provided with an inclined plane which inclines upwards along the direction away from the inner shell.

Through adopting above-mentioned technical scheme, be provided with supplementary loading attachment on the shell, when needing to push the rack in the vacuum chamber, will assist and go up the flitch butt subaerial, promote the rack, push the rack in the flitch pushes the inner shell from supplementary, can make the rack comparatively convenient to the removal in the vacuum chamber, reduce artifical intensity of labour.

Preferably: the rotating device comprises a swinging rod used for driving the auxiliary feeding plate to rotate and a driving assembly used for driving the swinging rod to move, the driving assembly is installed on the shell, and the swinging rod is arranged on the driving assembly.

Through adopting above-mentioned technical scheme, through rotating device's setting, start drive assembly can drive the swinging arms motion, and then drives the dwang and rotate, drives supplementary flitch rotation of going up, realizes supplementary flitch and rotates the motion of vertical position from horizontal position, makes supplementary flitch of going up place the space that occupies less.

Preferably: the driving assembly comprises a driving piece and a rotating plate, the driving piece is installed on the shell, the rotating plate is in rotating fit with the shell, a piston rod of the driving piece is in rotating fit with one end of the rotating plate, and the top end of the swinging rod is in rotating fit with the other end of the rotating plate.

Through adopting above-mentioned technical scheme, start the driving piece, can drive the dwang and rotate, and then drive the swinging arms and rotate, drive the dwang and assist and go up the flitch and rotate, realize the rotation regulation to supplementary flitch.

Preferably: the shell is provided with a mounting seat, the mounting seat is arranged on the shell in a circle, and the mounting seat is provided with an adjusting device used for adjusting the height of the shell.

Through adopting above-mentioned technical scheme, through adjusting device's setting, can adjust the distance between mount pad and the ground, and then adjust the height of shell to make this vacuum chamber can use on unevenness, co-altitude ground.

Preferably: the adjusting device comprises a supporting plate which is abutted to the ground, a screw rod arranged on the supporting plate and fasteners in threaded fit with the screw rod, wherein the fasteners are arranged on the screw rod in a spaced manner along the vertical direction, and two adjacent fasteners are used for extruding and locking two ends of the mounting seat.

Through adopting above-mentioned technical scheme, with the fastener rotating, make the fastener no longer to mount pad extrusion locking, promote the mount pad after that, drive the shell and promote, highly adjust the simple operation of shell.

Preferably: the shell is provided with a vacuumizing tube, two ends of the vacuumizing tube are respectively communicated with the vacuum cavity and the vacuum pump, and the vacuumizing tube is provided with a control valve.

Through adopting above-mentioned technical scheme, through the setting of evacuation pipe, can communicate vacuum pump and vacuum cavity, start the vacuum pump, can carry out evacuation processing to the vacuum cavity through evacuation pipe, simultaneously through the setting of control valve, can control evacuation pipe's break-make.

Preferably: and the shell is provided with a pressure sensor used for sensing the pressure in the vacuum chamber, and the pressure sensor is electrically connected with the control valve.

Through adopting above-mentioned technical scheme, through pressure sensor's setting, can detect the pressure in the vacuum chamber, after the pressure in the vacuum chamber reaches the predetermined value, pressure sensor transmits the signal for the controller, and the controller closes the control valve, and then makes the evacuation pipe close.

Preferably: the dust removal device is arranged on the shell and comprises a dust collection pipe arranged on the shell, a dust collection fan arranged on the dust collection pipe and a dust collection box arranged on the ground, two ends of the dust collection pipe are respectively communicated with the vacuum cavity and the dust collection fan, and a discharge hole of the dust collection fan is communicated with the dust collection box.

Through adopting above-mentioned technical scheme, install dust collector on the shell, start the dust absorption fan, through the dust absorption pipe, can extract the dust in the vacuum chamber to carry the dust collection box in, can avoid vacuum pump during operation, the dust gets into the vacuum pump after the evacuation pipe in, causes the jam of vacuum pump.

Preferably: the dust collection box is characterized in that a plurality of filter frames are arranged in the dust collection box, the filter frames are arranged at intervals in the vertical direction, the filter frames are in sliding fit with the dust collection box, filter holes are formed in the filter frames, and the diameters of the filter holes of the plurality of filter frames which are vertically downward are gradually reduced.

Through adopting above-mentioned technical scheme, through the setting of filtering the frame, can carry out a lot of filtration to the dust, carry away the gas after will filtering, avoid causing the pollution of environment.

Preferably: the conveying device is characterized in that conveying devices are mounted on the shell and the auxiliary feeding plate, a placing frame is placed in the vacuum chamber, each conveying device comprises a conveying roller for conveying the placing frame and a conveying assembly for driving the conveying roller to rotate, the conveying assemblies are mounted on the shell and the auxiliary feeding plate, and the conveying rollers are mounted on the conveying assemblies.

Through adopting above-mentioned technical scheme, through conveyor's setting, start conveying assembly, can drive the conveying roller and rotate, and then carry the rack, when making the staff promote the rack, labour saving and time saving more.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the auxiliary feeding device is arranged on the outer shell, so that when the placing frame needs to be pushed into the vacuum chamber, the auxiliary feeding plate is abutted to the ground, the placing frame is pushed, and the placing frame is pushed into the inner shell from the auxiliary feeding plate, so that the placing frame can be moved into the vacuum chamber conveniently, and the labor intensity of workers is reduced;

2. through installing dust collector on the shell, start the dust absorption fan, through the dust absorption pipe, can extract the dust in the vacuum chamber to carry the dust collection box in, can avoid vacuum pump during operation, the dust gets into the vacuum pump after the evacuation pipe in, causes the jam of vacuum pump.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a partial cross-sectional view of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a partially enlarged view at B in fig. 2.

Reference numerals: 1. a vacuum chamber; 11. a housing; 111. a vacuum chamber; 12. an inner shell; 121. a flow-through hole; 13. a mounting seat; 14. vacuumizing a tube; 141. a control valve; 15. mounting a plate; 16. a pressure relief pipe; 161. a pressure relief valve; 2. a rotating door; 21. a handle; 22. an observation window; 3. a vacuum pump; 4. an auxiliary feeding device; 41. rotating the rod; 42. an auxiliary feeding plate; 421. an inclined surface; 5. a rotating device; 51. a swing lever; 52. a drive assembly; 521. a drive member; 522. a rotating plate; 6. an adjustment device; 61. a support plate; 62. a screw; 63. a fastener; 7. a pressure sensor; 8. a dust removal device; 81. a dust collection pipe; 82. a dust collection fan; 83. a dust collection box; 84. a filter frame; 841. filtering holes; 9. a conveying device; 91. a conveying roller; 92. a delivery assembly; 921. a drive motor; 922. a reduction gearbox; 923. a sprocket; 924. a chain; 10. and (5) placing the shelf.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses evacuation machine. Referring to fig. 1 and 2, the vacuum pumping machine comprises a vacuum chamber 1, a rotating door 2 which is rotatably matched on the vacuum chamber 1 and a vacuum pump 3 which is arranged on the vacuum chamber 1, wherein the vacuum chamber 1 is a vertical hollow rectangular box, the rotating door 2 is a vertical rectangular plate, one end of the rotating door 2 in the width direction of the rotating door 2 is hinged with the vacuum chamber 1, the other end of the rotating door 2 is detachably connected with the vacuum chamber 1 through a buckle, and a circular observation window 22 and a vertical handle 21 are arranged on the rotating door 2. The vacuum pump 3 is installed on the ground, and the vacuum pump 3 communicates with the inside of the vacuum chamber 1. The placing frame 10 is placed in the vacuum chamber 1, the placing frame 10 is composed of a plurality of horizontal rectangular plates arranged at intervals in the vertical direction and four vertical rectangular rods fixed at four corners of the rectangular plates, and four universal wheels are rotatably matched on the rectangular plate at the lowest part. When the workpiece needs to be vacuumized, the workpiece is placed on the placing frame 10, then the placing frame 10 is pushed, the placing frame 10 is placed in the vacuum chamber 1, then the rotating door 2 is rotated, the rotating door 2 is closed, the vacuum pump 3 is started, and the vacuum chamber 1 is vacuumized.

Referring to fig. 2 and 3, the vacuum chamber 1 includes an outer shell 11 and an inner shell 12 fixedly disposed on the outer shell 11, the outer shell 11 and the inner shell 12 are both vertical hollow rectangular boxes, and the outer shell 11 and the inner shell 12 are integrally disposed. Be provided with mount pad 13 on shell 11, mount pad 13 comprises horizontal rectangular plate and two vertical triangle-shaped boards of fixing on the rectangular plate, and mount pad 13 sets up a week on shell 11, and mount pad 13 is provided with four altogether, is provided with on the mount pad 13 to be used for highly adjusting device 6 to shell 11, when installing vacuum chamber 1, places vacuum chamber 1 subaerial earlier to through adjusting device 6, adjust the distance between vacuum chamber 1 and the ground.

Referring to fig. 2 and 3, the adjusting device 6 includes a support plate 61 abutting against the ground, a screw 62 fixedly mounted on the support plate 61, and a fastening member 63 screwed on the screw 62, the support plate 61 is a horizontal circular plate, the screw 62 is vertically disposed, the fastening member 63 may be directly formed by a nut, two fastening members 63 are disposed on the screw 62 at intervals along the vertical direction, and two adjacent fastening members 63 extrude and lock two ends of the rectangular plate of the mount base 13 along the vertical direction. When the height of the vacuum chamber 1 needs to be adjusted, the upper fastening member 63 is rotated to vertically rise, then the mounting base 13 is lifted, the lower fastening member 63 is rotated to vertically rise, and after the adjustment is completed, the upper fastening member 63 is rotated to press and lock the mounting base 13.

Referring to fig. 2 and 3, in order to facilitate the staff to push the placing rack 10 into the vacuum chamber 1, an auxiliary feeding device 4 is disposed on the housing 11, and with reference to fig. 4, the auxiliary feeding device 4 includes a rotating rod 41 rotatably fitted on the housing 11 and an auxiliary feeding plate 42 fixedly disposed on the rotating rod 41, a vertical mounting plate 15 is fixedly disposed on the housing 11, the mounting plate 15 is an L-shaped plate, a vertical chute is disposed on the mounting plate 15, the rotating rod 41 is a horizontal cylindrical rod, and the rotating rod 41 is slidably fitted in the chute of the mounting plate 15. The auxiliary feeding plate 42 is a rectangular plate, one end of the auxiliary feeding plate 42 is flush with the upper surface of the bottom plate of the inner shell 12, an inclined surface 421 inclined upwards along the direction away from the inner shell 12 is arranged at the other end of the auxiliary feeding plate 42, and the inclined surface 421 abuts against the ground. In operation, the worker pushes the rack 10 onto the auxiliary feeding plate 42, and then pushes the rack 10 into the vacuum chamber 1.

Referring to fig. 2 and 3, in order to make the rack 10 slide more conveniently, a conveying device 9 is fixedly mounted on the housing 11 and the auxiliary feeding plate 42, with reference to fig. 4, the conveying device 9 includes a conveying roller 91 for conveying the rack 10 and a conveying assembly 92 for driving the conveying roller 91 to rotate, the conveying assembly 92 is fixedly mounted on the housing 11 and the auxiliary feeding plate 42, the conveying assembly 92 includes a driving motor 921 fixedly mounted on the housing 11 and the auxiliary feeding plate 42, a reduction gearbox 922 and a sprocket 923, the reduction gearbox 922 is fixedly mounted on an output shaft of the driving motor 921, the sprocket 923 is fixedly mounted on a rotating shaft of the reduction gearbox 922, the housing 11 and the auxiliary feeding plate 42 rotatably support the sprocket 923, the sprocket 923 is provided in plurality at intervals along the length direction of the auxiliary feeding plate 42, and a chain 924 is wound on the plurality of sprockets 923. Conveying roller 91 is fixed to be worn to locate in sprocket 923, and the groove that supplies conveying roller 91 to install is all seted up to the upper surface of inner shell 12 bottom plate and the upper surface of supplementary flitch 42, and conveying roller 91 normal running fit is in the inslot. The driving motor 921 is started, and the chain wheel 923 is driven to rotate by the reduction box 922, so that the chain 924 and the conveying roller 91 are driven to rotate, and the placing frame 10 is conveyed into the vacuum chamber 1.

Referring to fig. 1 and 2, a dust removing device 8 is mounted on a housing 11, and after a placing frame 10 is conveyed into a vacuum chamber 1, the dust removing device 8 is started to treat dust in the vacuum chamber 1 and on the placing frame 10. The dust removing device 8 comprises a dust suction pipe 81 fixedly mounted on the housing 11, a dust suction fan 82 fixedly mounted on the dust suction pipe 81 and a dust collection box 83 mounted on the ground, the dust suction pipe 81 is an L-shaped cylindrical pipe, two ends of the dust suction pipe 81 are respectively communicated with the vacuum chamber 111 and the dust suction fan 82, a discharge port of the dust suction fan 82 is connected with a conveying pipeline, and the dust suction fan 82 is communicated with the dust collection box 83 through the conveying pipeline. The dust suction fan 82 is started to suck dust in the vacuum chamber 1 through the dust suction pipe 81 and send the dust into the dust box 83.

Referring to fig. 1 and 2, two filter frames 84 are disposed in the dust collecting box 83, the two filter frames 84 are spaced apart from each other in the vertical direction, each filter frame 84 is composed of a horizontal frame shaped like a Chinese character 'hui' and a rectangular plate fixed to the lower surface of the frame shaped like a Chinese character 'hui', a plurality of filter holes 841 are uniformly formed in the rectangular plate of each filter frame 84, and the diameter of each filter hole 841 is gradually reduced along the two filter frames 84 facing vertically downward. After the dust entering the dust collection box 83 is primarily filtered by the upper filter rack 84, the dust is further filtered by the lower filter rack 84, the filtered gas is discharged through the exhaust port at the bottom of the dust collection box 83, and after the dust collection treatment, the dust collection fan 82 is closed and the rotating door 2 is closed. The dust collecting box 83 is provided with a groove for sliding the filter frame 84 out, the filter frame 84 is in sliding fit with the dust collecting box 83, after the filter frame 84 is used for a period of time, the filter frame 84 is drawn out from the dust collecting box 83, and dust on the filter frame 84 is cleaned.

Referring to fig. 2 and 4, the housing 11 is provided with two rotating devices 5, the two rotating devices 5 are oppositely arranged along the width direction of the housing 11, and after the rotating door 2 is closed, the rotating devices 5 are started to drive the rotating rod 41 and the auxiliary feeding plate 42 to rotate, so as to retract the auxiliary feeding plate 42. The rotating device 5 comprises a swing rod 51 for driving the auxiliary feeding plate 42 to rotate and a driving assembly 52 for driving the swing rod 51 to move, the driving assembly 52 is fixedly installed on the housing 11, the driving assembly 52 comprises a driving part 521 fixedly installed on the housing 11 and a rotating plate 522 in rotating fit with the housing 11, the driving part 521 is directly formed by a cylinder, and a cylinder body of the cylinder is fixedly installed on the housing 11. Fixed being provided with the horizontally pivot on the shell 11, the rotor plate 522 is the horizontally rectangular plate, the intermediate position normal running fit of rotor plate 522 is in the pivot, the piston rod of driving piece 521 and the one end normal running fit of rotor plate 522, swinging arms 51 is the cylinder pole of vertical setting, swinging arms 51's top and bottom are all fixed and are provided with the ball joint bearing, swinging arms 51's top and rotor plate 522's the other end normal running fit, dwang 41 wears to locate in the ball joint bearing of swinging arms 51 bottom. The driving member 521 is started to drive the rotating plate 522 to rotate around the rotating shaft, so as to drive the swinging rod 51 to move, drive the rotating rod 41 to rotate, drive the auxiliary feeding plate 42 to rotate from the horizontal position to the vertical position, and then perform vacuum-pumping treatment on the vacuum chamber 1.

Referring to fig. 2 and 3, a vacuum chamber 111 is disposed between the inner casing 12 and the outer casing 11, an evacuation tube 14 is fixedly mounted on the outer casing 11, the evacuation tube 14 is an L-shaped tube, two ends of the evacuation tube 14 are respectively communicated with the vacuum chamber 111 and the vacuum pump 3, a control valve 141 is fixedly disposed on the evacuation tube 14, and the control valve 141 can be directly formed by an electromagnetic valve. The inner shell 12 is provided with circulation holes 121 for vacuumizing, the circulation holes 121 are circular through holes, three circulation holes 121 are arranged on the inner shell 12 at intervals, and the vacuum pump 3 is communicated with the vacuum cavity 111 through the circulation holes 121. When the vacuum pump works, the control valve 141 is opened, the vacuum pump 3 is started, the vacuum chamber 1 is vacuumized through the vacuum-pumping pipe 14, and further the workpiece is vacuumized. The pressure sensors 7 for sensing the pressure in the vacuum chamber 1 are mounted on the housing 11, four pressure sensors 7 are arranged on the housing 11, and the pressure sensors 7 are electrically connected with the control valve 141. The pressure sensor 7 detects the pressure in the vacuum chamber 1, and when the pressure in the vacuum chamber 1 reaches a predetermined pressure value, a signal is transmitted to the controller, and the controller closes the control valve 141 and then closes the vacuum pump 3. The shell 11 is connected with a pressure relief pipe 16, the pressure relief pipe 16 is a horizontal cylindrical pipe, the pressure relief pipe 16 is communicated with the vacuum cavity 111, the pressure relief pipe 16 is provided with a pressure relief valve 161, the pressure relief valve 161 is opened, and the pressure relief treatment can be performed on the vacuum chamber 1 through the pressure relief pipe 16.

The application principle of the vacuum extractor in the embodiment of the application is as follows: when the workpiece on the placing frame 10 needs to be vacuumized, the conveying device 9 is started first, the worker pushes the placing frame 10 into the vacuum chamber 1, then the dust removing device 8 is started, the placing frame 10 and the dust in the vacuum chamber 1 are extracted, and the extracted dust is conveyed into the dust collection box 83. Then, the rotating door 2 is rotated, the rotating door 2 is closed, the rotating device 5 is started to rotate the auxiliary feeding plate 42 from the horizontal position to the vertical position, the control valve 141 is opened, the vacuum pump 3 is started, and the vacuum pumping treatment is performed on the inside of the vacuum chamber 1 through the vacuum pumping pipe 14, so that the workpiece is subjected to the vacuum pumping treatment.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Evacuation machine, including vacuum chamber (1), set up swing door (2) on vacuum chamber (1) and set up vacuum pump (3) on vacuum chamber (1), rack (10), its characterized in that have been placed in vacuum chamber (1): the vacuum chamber (1) comprises an outer shell (11) and an inner shell (12) arranged on the outer shell (11), a vacuum cavity (111) is arranged between the inner shell (12) and the outer shell (11), the vacuum pump (3) is communicated with the vacuum cavity (111), a circulation hole (121) for vacuumizing is formed in the inner shell (12), the circulation hole (121) is communicated with the vacuum cavity (111), an auxiliary feeding device (4) is arranged on the outer shell (11), the auxiliary feeding device (4) comprises a rotating rod (41) which is rotatably matched with the outer shell (11) and an auxiliary feeding plate (42) which is fixedly arranged on the rotating rod (41), one end of the auxiliary feeding plate (42) is arranged in a flush with the upper surface of the bottom plate of the inner shell (12) in height, and an inclined surface (421) which inclines upwards along the direction far away from the inner shell (12) is arranged at the other end of the auxiliary feeding plate (42), the device comprises a shell (11), wherein a rotating device (5) is arranged on the shell (11), the rotating device (5) comprises a swing rod (51) used for driving an auxiliary feeding plate (42) to rotate and a driving assembly (52) used for driving the swing rod (51) to move, the driving assembly (52) is arranged on the shell (11), the swing rod (51) is arranged on the driving assembly (52), the driving assembly (52) comprises a driving part (521) arranged on the shell (11) and a rotating plate (522) in rotating fit with the shell (11), a piston rod of the driving part (521) is in rotating fit with one end of the rotating plate (522), the top end of the swing rod (51) is in rotating fit with the other end of the rotating plate (522), a mounting seat (13) is arranged on the shell (11), the mounting seat (13) is arranged in a circle on the shell (11), and an adjusting device (6) used for adjusting the height of the shell (11) is arranged on the mounting seat (13), the adjusting device (6) comprises a support plate (61) abutted to the ground, a screw rod (62) installed on the support plate (61) and a fastener (63) in threaded fit with the screw rod (62), the fastener (63) is sleeved on the screw rod (62) at intervals along the vertical direction, two adjacent fasteners (63) are used for extruding and locking two ends of the installation seat (13), the swinging rod (51) is a vertically arranged cylindrical rod, spherical joint bearings are fixedly arranged at the top end and the bottom end of the swinging rod (51), the top end of the swinging rod (51) is in running fit with the other end of the rotating plate (522), the rotating rod (41) is arranged in the spherical joint bearing at the bottom end of the swinging rod (51) in a penetrating manner, a vertical installation plate (15) is fixedly arranged on the shell (11), the installation plate (15) is an L-shaped plate, a vertical sliding chute is formed in the installation plate (15), and the rotating rod (41) is a horizontal cylindrical rod, the rotating rod (41) is in sliding fit with the sliding groove of the mounting plate (15), the housing (11) is provided with a dust removal device (8), the dust removal device (8) comprises a dust suction pipe (81) arranged on the housing (11), a dust suction fan (82) arranged on the dust suction pipe (81) and a dust collection box (83) arranged on the ground, two ends of the dust suction pipe (81) are respectively communicated with the vacuum cavity (111) and the dust suction fan (82), a discharge hole of the dust suction fan (82) is communicated with the dust collection box (83), the dust collection box (83) is internally provided with a plurality of filter frames (84), the filter frames (84) are arranged at intervals in the vertical direction, the filter frames (84) are in sliding fit with the dust collection box (83), the filter holes (841) are formed in the filter frames (84), and the diameters of the filter holes (841) of the plurality of filter frames (84) which are vertically downward are gradually reduced, the conveying device (9) is arranged on the shell (11) and the auxiliary feeding plate (42), the conveying device (9) comprises conveying rollers (91) used for conveying the placing frame (10) and conveying assemblies (92) used for driving the conveying rollers (91) to rotate, the conveying assemblies (92) are arranged on the shell (11) and the auxiliary feeding plate (42), the conveying rollers (91) are arranged on the conveying assemblies (92), the conveying assemblies (92) comprise driving motors (921) fixedly arranged on the shell (11) and the auxiliary feeding plate (42), reduction boxes (922) and chain wheels (923), the reduction boxes (922) are fixedly arranged on output shafts of the driving motors (921), the chain wheels (923) are fixedly arranged on rotating shafts of the reduction boxes (922), the shell (11) and the auxiliary feeding plate (42) rotatably support the chain wheels (923), and the chain wheels (923) are arranged on the auxiliary feeding plate (42) at intervals in the length direction, around being equipped with chain (924) on a plurality of sprocket (923), conveying roller (91) are fixed to wear to locate sprocket (923), and the groove that supplies conveying roller (91) installation is all seted up to the upper surface of inner shell (12) bottom plate and the upper surface of supplementary flitch (42) of going up, and conveying roller (91) normal running fit is in the inslot.

2. The evacuator of claim 1, wherein: an evacuating pipe (14) is installed on the shell (11), two ends of the evacuating pipe (14) are respectively communicated with the vacuum cavity (111) and the vacuum pump (3), and a control valve (141) is arranged on the evacuating pipe (14).

3. The evacuator of claim 2, wherein: the shell (11) is provided with a pressure sensor (7) used for sensing the pressure in the vacuum chamber (1), and the pressure sensor (7) is electrically connected with the control valve (141).