CN111997473B

CN111997473B - Opening and closing mechanism for vacuum box door

Info

Publication number: CN111997473B
Application number: CN202010838222.6A
Authority: CN
Inventors: 郭彪; 杨中舒
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-10-12
Anticipated expiration: 2040-08-19
Also published as: CN111997473A

Abstract

The invention discloses a vacuum box door opening and closing mechanism which comprises a vacuum box body and a box door part movably connected with the vacuum box body, wherein the vacuum box body is provided with a driving part for opening or closing the box door part; the door part comprises a locking door and a vacuum door, the vacuum door is positioned between the locking door and the vacuum box body, the locking door is in vertical sliding connection with the vacuum box body, the vacuum door is movably connected with the locking door, a cam plate is fixedly connected to the position, close to the vacuum door, of the locking door, a cam groove is formed in the cam plate, the distance from the cam groove to the vacuum box body is gradually increased from top to bottom, a roller assembly is installed at the position, close to the locking door, of the vacuum door, the roller assembly comprises a roller rotatably connected with the vacuum door, and the roller is slidably connected in the cam groove; the vacuum door is passively locked by means of limiting and a cam mechanism, and the locking consistency of the vacuum door is guaranteed.

Description

Opening and closing mechanism for vacuum box door

Technical Field

The invention relates to a power lithium battery production technology, in particular to a vacuum box door opening and closing mechanism.

Background

The production of power lithium ion batteries, whether square batteries or cylindrical batteries, requires constant pressure vacuum exhaust after formation. Therefore, the vacuum box device is an essential joint point device for power battery production. Isobaric vacuum exhaust requires that the pressure of the vacuum box door is consistent every time the vacuum box door is closed; is the key for ensuring the vacuum value of the vacuum box to be stable. The vacuum box door is an automatic feeding and discharging door and needs to be opened and closed frequently, and the vacuum box door needs to be opened and closed rapidly and frequently; ensuring higher productivity. The vacuum value of the vacuum box is relatively high, and certain safety setting is required for the periphery of equipment; meanwhile, the installation is convenient and the maintenance is fast. That is to say, ideal vacuum chamber door, space utilization will be high, and the door is opened and close and will be fast and the uniformity is high, must be safe, easy to assemble and maintain.

Disclosure of Invention

The invention aims to provide an opening and closing mechanism of a vacuum chamber door, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a vacuum box door opening and closing mechanism comprises a vacuum box body and a box door part movably connected with the vacuum box body, wherein a driving part for opening or closing the box door part is arranged on the vacuum box body;

the chamber door portion includes locking door, vacuum door is located locking door with between the vacuum box, locking door with sliding connection about the vacuum box, vacuum door with locking door swing joint, locking door is close to the position fixedly connected with cam plate of vacuum door, the cam slot has been seted up on the cam plate, the cam slot distance the distance of vacuum box from top to bottom increases gradually, the vacuum door is close to the position of locking door installs roller components, roller components include with the vacuum door rotates the gyro wheel of connecting, gyro wheel sliding connection in the cam slot, vacuum box lower part is equipped with spacing guide post, spacing guide post is located under the vacuum door.

As a further scheme of the invention: the vacuum box body is close to the position of the box door part is provided with a door frame, the outer side of the door frame is provided with door frame sealing strips, the limiting guide posts are provided with a plurality of limiting guide posts, and one side of the vacuum door close to the door frame is provided with vacuum door sealing strips arranged correspondingly to the door frame sealing strips.

As a further scheme of the invention: the box door part comprises a frame, and the two sides of the locking door are fixedly connected with the frame.

As a further scheme of the invention: the vacuum box is characterized in that a fixing column is fixedly connected to the box body of the vacuum box, a guide column is connected to the fixing column in a sliding mode, the guide column is fixedly connected with the frame through a guide column fixing plate, and the guide column fixing plate is located at the top of the frame.

As a further scheme of the invention: the four cam plates are respectively positioned at four corners of the locking door, the four roller assemblies are respectively arranged corresponding to the four cam plates, each roller assembly comprises a roller fixing seat fixedly connected with the vacuum door, a roller shaft is fixedly connected to the roller fixing seat, and the rollers are rotatably connected to the roller shafts.

As a further scheme of the invention: the driving part comprises a cylinder fixedly connected with the vacuum box body, the front end of a piston of the cylinder is fixedly connected with a pushing rack, and the pushing rack is in power connection with the locking door through a power transmission mechanism.

As a further scheme of the invention: the power mechanism comprises a lifting rack fixedly connected with the locking door, a lifting gear is rotatably connected to the vacuum box body, the lifting gear is meshed with the lifting rack and is in power connection with the pushing rack.

As a further scheme of the invention: the lifting gear is connected with the vacuum box body in a rotating mode through a lifting gear shaft, the lifting gear shaft is fixedly connected with a supporting bearing seat on the vacuum box body and connected with the vacuum box body, and the lifting gear shaft is in power connection with the pushing rack through a transmission gear set.

As a further scheme of the invention: the transmission gear set comprises a third gear meshed and connected with the pushing rack, the third gear is coaxially and fixedly connected with a second gear, a first gear is arranged on the lifting gear shaft, and the first gear is meshed and connected with the second gear.

As a further scheme of the invention: the vacuum box is characterized in that a supporting seat is fixedly connected to the vacuum box body, an intermediate shaft is rotatably connected to the supporting seat, the second gear and the third gear are sleeved on the intermediate shaft, the base circle diameter of the second gear is larger than that of the third gear, the base circle diameter of the second gear is larger than that of the first gear, and the base circle diameter of the lifting gear is larger than that of the first gear.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the vacuum box door opening and closing mechanism, the space utilization rate and the opening and closing speed are improved by the two-stage speed reduction of the gear and the rack and the ingenious cylinder placing mode; the vacuum door is convenient to install and maintain by utilizing the fine division of the structure of the double-layer door and the open type cam mechanism, and meanwhile, the action fixation of the locking door is ensured, and the equipment safety is improved; the vacuum door is passively locked by means of limiting and a cam mechanism, and the locking consistency of the vacuum door is guaranteed.

2. According to the opening and closing mechanism of the vacuum box door, the gear rack mechanism is adopted, the movement stroke is amplified through the reduction ratio, the height of the vacuum box is reduced, the space utilization rate of a factory building of the vacuum box is improved, the gear rack mechanism is adopted, a common air cylinder is used for providing power, and the power cost input of equipment is reduced;

3. according to the opening and closing mechanism of the vacuum box door, the vacuum box door is of a double-layer door structure, the inner layer is the vacuum door, the outer layer is the locking door, fine division of labor is achieved, and manufacturing, installation and follow-up maintenance of the box door are facilitated;

6. according to the vacuum chamber door opening and closing mechanism, the cam mechanism matched with the vacuum chamber door and the locking door is an open groove, so that the vacuum chamber door can be conveniently installed and debugged and maintained in the later period;

7. according to the vacuum chamber door opening and closing mechanism, the vacuum chamber door and the locking door are opened and locked through the groove type cam mechanism, and in the opening or closing process, the vacuum chamber door is horizontally opened firstly by means of self weight and then is lifted by means of the rack mechanism; closing the vacuum door, vertically putting down by a rack mechanism, and pressing along the cam groove; the dead weight of the vacuum door, the cam mechanism and the rack mechanism are skillfully utilized; the locking door is ensured to move vertically all the time, the space is saved, the safety of the vacuum chamber door is improved, the consistency of the opening and closing force of the door each time is ensured, the vacuum degree in the vacuum chamber is favorably ensured, and the product quality is indirectly improved.

8. The opening and closing mechanism of the vacuum box door can be driven by a cylinder, and can be driven by a motor and hydraulic pressure; the opening and closing mechanism can be applied to a vacuum box, can also be used for an AB door of an oven and a formation and environment isolation, and can also be used for environment control doors and windows which need to be opened and closed frequently in the non-lithium battery industry.

Drawings

FIG. 1 is a general schematic view of a door opening/closing mechanism (closed state) of a vacuum chamber according to the present embodiment;

FIG. 2 is a general schematic view of the door opening/closing mechanism (open state) of the vacuum chamber of the present embodiment;

FIG. 3 is a schematic view of the door opening and closing mechanism (excluding the closed state of the substrate) of the vacuum chamber of the present embodiment;

FIG. 4 is a schematic view of the door opening/closing mechanism (excluding the open state of the substrate) of the vacuum chamber of the present embodiment;

FIG. 5 is a schematic view of the door opening/closing mechanism (open state) of the vacuum chamber of the present embodiment;

FIG. 6 is a schematic view of the gear transmission of the door opening and closing mechanism of the vacuum chamber of the present embodiment;

fig. 7 and 8 are schematic diagrams of the cam pressing mechanism of the door opening and closing mechanism of the vacuum chamber in the present embodiment.

In the figure: 1-a vacuum box body, 2-a box door part, 3-a driving part, 4-a driving protective cover, 5-a fixed column locking block, 6-a fixed column, 7-a door frame, 8-a door frame sealing strip, 9-a limiting guide column, 10-a locking door, 11-a frame, 12-a vacuum door, 13-a roller component, 14-a cam plate, 15-a guide column fixing plate, 16-a vacuum door sealing strip, 17-a cylinder cushion block, 18-an air cylinder, 19-a pushing rack, 20-a guide column, 21-a lifting rack, 22-a lifting gear, 23-a lifting gear shaft, 24-a supporting bearing seat, 25-a first gear, 26-a supporting seat, 27-a middle shaft, 28-a second gear, 29-a cam groove, 30-a third gear, 31-a roller shaft, 32-a roller and 33-a roller fixing seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1 to 8, in an embodiment of the present invention, a vacuum chamber door opening and closing mechanism includes a vacuum chamber body 1 and a chamber door portion 2 movably connected to the vacuum chamber body 1, a door frame 7 is disposed at a position of the vacuum chamber body 1 close to the chamber door portion 2, a door frame sealing strip 8 is disposed at an outer side of the door frame 7, a vacuum door sealing strip 16 disposed corresponding to the door frame sealing strip 8 is disposed at a side of the vacuum door 12 close to the door frame 7, and a driving portion 3 for opening or closing the chamber door portion 2 is disposed on the vacuum chamber body 1.

Case door portion 2 includes frame 11, locking door 10, vacuum door 12, the equal fixedly connected with frame 11 in locking door 10 both sides, in this embodiment, frame 11 is C type frame, vacuum door 12 is located between locking door 10 and the vacuum box 1, sliding connection about locking door 10 and the vacuum box 1, vacuum door 12 and locking door 10 swing joint, fixedly connected with fixed column 6 on the vacuum box 1, sliding connection has guide post 20 in the fixed column 6, guide post 20 pegs graft in the fixed column 6, guide post 20 passes through guide post fixed plate 15 fixed connection with frame 11, guide post fixed plate 15 is located frame 11 top, and then can be the upper and lower sliding guide of frame 11 with the vacuum box 1 through guide post 20. The position, close to the vacuum door 12, of the locking door 10 is fixedly connected with a cam plate 14, a cam groove 29 is formed in the cam plate 14, the distance from the cam groove 29 to the vacuum box body 1 is gradually increased from top to bottom, roller assemblies 13 are installed at the position, close to the locking door 10, of the vacuum door 12, each roller assembly 13 comprises a roller 32 rotatably connected with the vacuum door 12, the rollers 32 are slidably connected in the cam groove 29, the cam plates 14 are four, the four cam plates 14 are respectively located at four corners of the locking door 10, the roller assemblies 13 are provided with four groups and are respectively arranged corresponding to the four groups of cam plates 14, each roller assembly 13 comprises a roller fixing seat 33 fixedly connected with the vacuum door 12, a roller shaft 31 is fixedly connected onto each roller fixing seat 33, the rollers 32 are rotatably connected onto the roller shaft 31, the lower portion of the vacuum box body 1 is provided with a plurality of limiting guide columns 9, the plurality of limiting guide columns 9 are arranged, and the plurality of limiting guide columns 9 are all located under the vacuum door 12.

The driving part 3 comprises an air cylinder 18 fixedly connected with the vacuum box body 1, the air cylinder 18 is fixedly connected with the vacuum box body 1 through an air cylinder cushion block 17, the front end of a piston of the air cylinder 18 is fixedly connected with a pushing rack 19, the vacuum box body 1 is fixedly connected with a supporting seat 26, an intermediate shaft 27 is rotatably connected with the supporting seat 26, a second gear 28 and a third gear 30 are arranged on the intermediate shaft 27, the second gear 28 and the third gear 30 are coaxially arranged, the third gear 30 is meshed with the pushing rack 19, the vacuum box body 1 is fixedly linked with a supporting bearing seat 24, a lifting gear shaft 23 is rotatably connected with the supporting bearing seat 24, a first gear 25 is arranged in the middle of the lifting gear shaft 23, the first gear 25 is meshed with the second gear 28, lifting gears 22 are fixedly connected with two ends of the lifting gear shaft 23, lifting gears 21 are fixedly connected with the frames 11 on two sides, and the lifting rack 21 is meshed with the lifting gears 22, and then in the process of the expansion of the cylinder 18, the pushing rack 19 is driven to move horizontally, the pushing rack 19 drives the third gear 30 to rotate, the third gear 30 drives the intermediate shaft 27 and the second gear 28 to rotate, the second gear 28 drives the first gear 25 to rotate, the rotation of the first gear 25 drives the lifting gear shaft 23 and the lifting gear 22 to rotate, and the rotation of the lifting gear 22 can drive the lifting rack 21 to move up and down, so that the frame 11, the locking door 10 and the vacuum door 12 are driven to move up and down.

In addition, the base circle diameter of the second gear 28 is larger than that of the third gear 30, the base circle diameter of the second gear 28 is larger than that of the first gear 25, and the base circle diameter of the lifting gear 22 is larger than that of the first gear 25, so that the length of the push rack 19 can be reduced.

When the invention is used, when the box door part 2 needs to be opened, the air cylinder 18 is started to contract, the air cylinder 18 drives the pushing rack 19 to move in the direction away from the box door, and then the frame 11 is driven to move upwards through the third gear 30, the second gear 28, the first gear 25, the lifting gear shaft 23, the lifting gear 22 and the lifting rack 21, because the locking door 10 is fixedly connected with the frame 11, when the frame 11 moves upwards, the locking door 10 moves upwards synchronously, because the vacuum door 12 is connected through the roller component 13 and the cam plate 14, when the locking door 10 moves upwards, because of the gravity of the vacuum door 12, the roller 32 connected with the vacuum door 12 slides in the cam groove 29, namely the locking door 10 is in the initial stage, the vacuum door 12 does not move in the vertical direction, namely the locking door 10 slides upwards relative to the vacuum door 12, therefore the roller 32 slides downwards in the cam groove 29, because the distance from cam slot 29 to vacuum box 1 from top to bottom increases gradually, when gyro wheel 32 downstream in cam slot 29, vacuum door 12 moves to the direction of keeping away from vacuum box 1 in the level, and then can open vacuum door 12, abolish the vacuum environment in vacuum box 1, until gyro wheel 32 moves to cam slot 29 bottom, gyro wheel 32 can't continue downstream in cam slot 29 this moment, and then at the in-process that locking door 10 lasts upward movement, drive vacuum door 12 upward movement, until vacuum door 12, locking door 10 keeps away from vacuum box 1 completely, accomplish the box and open the process.

When the vacuum box needs to be closed, the air cylinder 18 is started, the piston of the air cylinder 18 extends out to drive the pushing rack 19 to move towards the direction far away from the box body 1 of the vacuum box, and then the frame 11 is driven to move downwards through the third gear 30, the second gear 28, the first gear 25, the lifting gear shaft 23, the lifting gear 22 and the lifting rack 21, because the locking door 10 is fixedly connected with the frame 11, when the frame 11 moves downwards, the locking door 10 synchronously moves downwards, because the vacuum door 12 is connected through the roller component 13 and the cam plate 14, when the locking door 10 moves downwards, the vacuum door 12 is synchronously driven to move downwards, after a certain distance, the lower part of the vacuum door 12 contacts the limiting guide column 9, the vacuum door 12 cannot continuously move downwards under the action of the limiting guide column 9, at the moment, the locking door 10 continuously moves downwards, and therefore, the vacuum door 12 moves upwards relative to the locking door 10,

namely, the roller 32 slides upwards in the cam groove 29, because the distance from the cam groove 29 to the vacuum box body 1 is gradually increased from top to bottom, when the roller 32 moves upwards in the cam groove 29, the vacuum door 12 moves horizontally towards the direction close to the vacuum box body 1, and further the vacuum door 12 is continuously close to the vacuum box body 1, in the process, the vacuum door sealing strip 16 at the rear side of the vacuum door 12 is contacted with the door frame sealing strip 8 at the front end of the vacuum box body and is continuously extruded, when the roller 32 moves to the top of the cam groove 29, the vacuum door 12 and the door frame 7 of the vacuum box body 1 are extruded to the limit position, the sealing in the vacuum box body 1 is completed, at the moment, the air cylinder 18 is stopped, namely, the locking door 10 stops moving synchronously, and the whole box body sealing process is completed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A vacuum box door opening and closing mechanism comprises a vacuum box body (1) and a box door part (2) movably connected with the vacuum box body (1), and is characterized in that a driving part (3) for opening or closing the box door part (2) is arranged on the vacuum box body (1);

case door portion (2) is including locking door (10), vacuum door (12) are located locking door (10) with between the vacuum box body (1), locking door (10) with sliding connection about vacuum box body (1), vacuum door (12) with locking door (10) swing joint, locking door (10) are close to the position fixedly connected with cam plate (14) of vacuum door (12), cam slot (29) have been seted up on cam plate (14), cam slot (29) are apart from the distance of vacuum box body (1) from top to bottom increases gradually, vacuum door (12) are close to the position of locking door (10) installs roller subassembly (13), roller subassembly (13) include with vacuum door (12) rotate gyro wheel (32) of being connected, gyro wheel (32) sliding connection in cam slot (29), the vacuum box is characterized in that a limiting guide post (9) is arranged on the lower portion of the vacuum box body (1), and the limiting guide post (9) is located under the vacuum door (12).

2. The opening and closing mechanism of the vacuum box door is characterized in that a door frame (7) is arranged at the position, close to the box door portion (2), of the vacuum box body (1), door frame sealing strips (8) are arranged on the outer side of the door frame (7), a plurality of limiting guide posts (9) are arranged, and vacuum door sealing strips (16) arranged corresponding to the door frame sealing strips (8) are arranged on one side, close to the door frame (7), of the vacuum door (12).

3. The door opening and closing mechanism of the vacuum chamber as claimed in claim 1, wherein the chamber door portion (2) comprises a frame (11), and the frame (11) is fixedly connected to both sides of the locking door (10).

4. The opening and closing mechanism of the vacuum box door as claimed in claim 3, wherein a fixed column (6) is fixedly connected to the vacuum box body (1), a guide column (20) is slidably connected to the fixed column (6), the guide column (20) is fixedly connected to the frame (11) through a guide column fixing plate (15), and the guide column fixing plate (15) is located at the top of the frame (11).

5. The door opening and closing mechanism of a vacuum chamber as claimed in claim 1, wherein the cam plates (14) are four, the four cam plates (14) are respectively located at four corners of the locking door (10), the roller assemblies (13) are four groups and are respectively arranged corresponding to the four cam plates (14), the roller assemblies (13) comprise roller fixing seats (33) fixedly connected with the vacuum chamber (12), roller shafts (31) are fixedly connected to the roller fixing seats (33), and the rollers (32) are rotatably connected to the roller shafts (31).

6. The vacuum box door opening and closing mechanism according to claim 1, wherein the driving portion (3) comprises a cylinder (18) fixedly connected with the vacuum box body (1), a pushing rack (19) is fixedly connected to the front end of a piston of the cylinder (18), and the pushing rack (19) is in power connection with the locking door (10) through a power transmission mechanism.

7. The vacuum box door opening and closing mechanism according to claim 6, wherein the power transmission mechanism comprises a lifting rack (21) fixedly connected with the locking door (10), a lifting gear (22) is rotatably connected to the vacuum box body (1), the lifting gear (22) is meshed with the lifting rack (21), and the lifting gear (22) is in power connection with the pushing rack (19).

8. The opening and closing mechanism of a vacuum chamber door as claimed in claim 7, wherein the lifting gear (22) is rotatably connected with the vacuum chamber body (1) through a lifting gear shaft (23), the lifting gear shaft (23) is connected with the vacuum chamber body through a supporting bearing seat (24) fixedly connected with the vacuum chamber body (1), and the lifting gear shaft (23) is in power connection with the pushing rack (19) through a transmission gear set.

9. The vacuum chamber door opening and closing mechanism according to claim 8, wherein the transmission gear set comprises a third gear (30) engaged with the pushing rack (19), the third gear (30) is coaxially and fixedly connected with a second gear (28), a first gear (25) is started on the lifting gear shaft (23), and the first gear (25) is engaged with the second gear (28).

10. The vacuum box door opening and closing mechanism according to claim 9, wherein a supporting seat (26) is fixedly connected to the vacuum box body (1), an intermediate shaft (27) is rotatably connected to the supporting seat (26), the second gear (28) and the third gear (30) are sleeved on the intermediate shaft (27), the base circle diameter of the second gear (28) is larger than that of the third gear (30), the base circle diameter of the second gear (28) is larger than that of the first gear (25), and the base circle diameter of the lifting gear (22) is larger than that of the first gear (25).