CN110696892B - Turnover vehicle - Google Patents

Abstract

The application discloses a turnover vehicle which comprises a movable platform, a moving device, a lifting device and a rotating device. The motion device comprises a walking chassis, walking wheels, a walking driving assembly and a guiding mechanism, the walking chassis is driven to move through the walking driving assembly, the guiding mechanism plays a guiding role in the motion of the walking chassis, a track is not required to be paved, and the problems that the paved ground track hinders material transportation, pedestrians pass through and the ground track need to be leveled are solved. Due to the fact that the rotating device is additionally arranged, the direction of the platen printer can be changed by the turnover vehicle, and the platen printers with different directions can be flexibly scheduled. Due to the fact that the lifting device is additionally arranged, when the movable platform is rotated, the height of the movable platform is changed through the lifting device, so that the movable platform and the table plate are located at different horizontal positions, and the movable platform is effectively prevented from colliding with the table plate when rotating.

Description

Turnover vehicle

Technical Field

The application relates to the technical field of turnover vehicles, in particular to a turnover vehicle.

Background

Platen printers are devices that automatically move on a platen to perform a print job. In the existing platen printer, one machine can only print one color at the same time, and when multicolor printing is required, the screen printing plate needs to be replaced. Because the length of the platen is limited, the quantity of printing stock which can be discharged is limited, and the screen printing plate needs to be replaced once every time one color is printed, so that the operation is troublesome, the time is wasted due to the replacement of the screen printing plate and the scraper, and the production efficiency is reduced.

Aiming at the problem that the production efficiency is reduced due to frequent screen plate replacement, some equipment manufacturers increase linear tracks and turnover platforms on the ground on two sides of the production line platen, so that the platen printer can circularly turnover among a plurality of platens, and the frequency of screen plate replacement is reduced.

However, the above proposal needs to lay profile rails on the ground on two sides of the bedplate, the rails continuously extend from the first bedplate to the last bedplate, the passage between the bedplate and the bedplate is blocked and separated by the ground rails, and the transportation of materials or walking of people can have barriers, which is not beneficial to the requirement of safe production. In addition, the use of the ground track needs to adjust levelness in advance, and the whole track can be used only after being kept horizontal, so that inconvenience in use is brought, and the improvement is needed.

Disclosure of Invention

The application provides a turnover vehicle which is used for solving the problems that a ground track can prevent materials from being transported, pedestrians pass through and the ground track needs to be leveled.

The application provides a turnover vehicle, which comprises:

A movable platform for carrying a platen printer;

The travelling device comprises a travelling chassis, travelling wheels, a travelling driving assembly and a guiding mechanism, wherein the travelling chassis is used for bearing, the travelling wheels are arranged at the bottom of the travelling chassis and are rotationally connected with the travelling chassis, the travelling driving assembly is used for driving the travelling wheels to rotate so as to drive the travelling chassis to move among a plurality of platens along a straight line, the guiding mechanism comprises a first guiding piece and a second guiding piece, the first guiding piece is connected with the travelling chassis, the second guiding piece is arranged at intervals along a movement path of the travelling chassis, and when the travelling chassis is driven, the first guiding piece and the second guiding piece can be driven to cooperate so as to play a guiding role on the movement of the travelling chassis;

The lifting device is connected with the movable platform and used for driving the movable platform to move up and down;

And the rotating device is arranged on the walking chassis, is connected with the lifting device and is used for driving the lifting device and the movable platform to rotate.

As a further improvement of the turnover vehicle, the traveling driving assembly comprises a traveling driving motor, a traveling driving sprocket, a traveling driven sprocket, a traveling transmission chain and a traveling transmission rotating shaft, wherein the traveling driving motor is fixedly connected with the traveling chassis, the traveling driving sprocket is connected with the output end of the traveling driving motor, and the traveling driving motor is used for driving the traveling driving sprocket to rotate;

The walking transmission rotating shaft is rotationally connected with the bottom of the walking chassis, walking wheels are arranged at two ends of the walking transmission rotating shaft, the walking driven sprocket is fixedly connected with the walking transmission rotating shaft, and the walking transmission chain is connected with the walking driving sprocket and the walking driven sprocket, so that the walking driving sprocket can drive the walking transmission rotating shaft and the walking wheels to rotate when being driven.

As a further improvement of the turnover vehicle, the first guide piece comprises a guide wheel assembly, the second guide piece comprises a guide plate, the guide plate is parallel to the movement path of the walking chassis, and the guide wheel assembly can roll on the guide plate when being matched with the guide plate.

As a further improvement of the turnover vehicle, the guide wheel assembly comprises a guide connecting piece and at least two guide rollers, one side of the guide connecting piece is fixedly connected with the walking chassis, the other side of the guide connecting piece is rotationally connected with the guide rollers, and the guide rollers are used for rolling on two opposite sides of the guide plate so as to limit the walking chassis not to move in the direction perpendicular to the guide plate.

As a further improvement of the turnover vehicle, the lifting device comprises a lifting bearing frame, a first connecting seat, a second connecting seat, a lifting connecting rod assembly and a lifting driving assembly, wherein the lifting bearing frame is used for bearing a movable platform, the first connecting seat is connected with the lifting bearing frame, the second connecting seat is used for being connected with a rotary bearing frame, the lifting connecting rod assembly is connected with the first connecting seat and the second connecting seat, the lifting connecting rod assembly can drive the first connecting seat to ascend or descend when being driven, and the lifting driving assembly is used for driving the lifting connecting rod assembly to move.

As a further improvement of the turnover vehicle, the lifting connecting rod assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein the first connecting rod is provided with a first end and a second end which are oppositely arranged, the second connecting rod is provided with a first end and a second end which are oppositely arranged, the first end of the first connecting rod is rotationally connected with the first connecting seat, the second end of the first connecting rod is rotationally connected with the first end of the second connecting rod, and the second end of the second connecting rod is rotationally connected with the second connecting seat;

The third connecting rod is provided with a first end and a second end which are oppositely arranged, the fourth connecting rod is provided with a first end and a second end which are oppositely arranged, the first end of the third connecting rod is rotationally connected with the first connecting seat, the second end of the third connecting rod is rotationally connected with the first end of the fourth connecting rod, and the second end of the fourth connecting rod is rotationally connected with the second connecting seat.

As a further improvement of the turnover vehicle, the lifting driving assembly comprises a lifting driving motor, a driving screw rod, a first driving shaft and a second driving shaft, wherein the first driving shaft and the second driving shaft are oppositely arranged, the first driving shaft is rotationally connected with the second end of the first connecting rod and the first end of the second connecting rod, and the second driving shaft is rotationally connected with the second end of the third connecting rod and the first end of the fourth connecting rod;

The lifting driving motor is fixedly connected with the first driving shaft, the driving screw rod is arranged in the horizontal direction, the driving screw rod is connected with the output end of the lifting driving motor, the lifting driving motor is used for driving the driving screw rod to rotate, the second driving shaft is sleeved on the driving screw rod and is in threaded connection with the driving screw rod, and the driving screw rod can drive the second driving shaft to move on the driving screw rod when being driven so as to drive the lifting connecting rod assembly.

As a further improvement of the turnover vehicle, the rotating device comprises a rotating bearing frame, a friction roller, a rotating driving assembly and an adjusting assembly, wherein the rotating bearing frame is used for bearing a movable plate and is provided with a rotating connecting part for being in rotating connection with a walking chassis;

The friction roller is rotatably arranged, the friction roller is abutted against the rotary bearing frame, the friction roller can drive the rotary bearing frame to rotate when being driven, the rotary driving assembly is used for driving the friction roller to rotate, and the adjusting assembly is used for adjusting the abutting force between the friction roller and the rotary bearing frame.

As a further improvement of the turnover vehicle, the rotary driving assembly comprises a rotary driving motor, a driving friction sprocket, a driven friction sprocket, a friction rotating shaft and a friction transmission chain, wherein the driving friction sprocket is connected with the output end of the rotary driving motor, and the rotary driving motor is used for driving the driving friction sprocket to rotate;

The friction rotating shaft is rotationally arranged, the friction roller is connected with the friction rotating shaft, the friction rotating shaft can drive the friction roller to rotate when being rotated, the driven friction sprocket is connected with the friction rotating shaft, and the friction transmission chain is connected with the driving friction sprocket and the driven friction sprocket, so that the driving friction sprocket can drive the driven friction sprocket and the friction rotating shaft to rotate when being driven.

As a further improvement of the turnover vehicle, the adjusting assembly comprises a friction fixing seat, a friction bearing plate, a friction shaft mounting seat, a friction abutting block, an adjusting spring, an adjusting bolt and an adjusting nut, wherein the friction fixing seat is used for being connected with a walking chassis, the friction bearing plate is borne on the friction fixing seat, one side of the friction bearing plate is hinged with the friction fixing seat, and the other side of the friction bearing plate is hinged with the friction abutting block;

The friction butt piece has the friction screw, the friction fixing base has the friction through-hole, adjusting bolt runs through friction through-hole and friction screw to with friction screw threaded connection, adjusting spring housing adjusting bolt, adjusting spring one end and friction butt piece butt, the other end and friction fixing base butt in order to realize the floating support to friction loading board, adjusting nut is located the bottom of friction fixing base to cup joint with adjusting bolt, friction axle mount pad and friction loading board rigid coupling, friction pivot and friction axle mount pad rotate and are connected.

The application has the beneficial effects that:

the application provides a turnover vehicle which comprises a movable platform, a moving device, a lifting device and a rotating device. The motion device comprises a walking chassis, walking wheels, a walking driving assembly and a guiding mechanism, the walking chassis is driven to move through the walking driving assembly, the guiding mechanism plays a guiding role in the motion of the walking chassis, a track is not required to be paved, and the problems that the paved ground track hinders material transportation, pedestrians pass through and the ground track need to be leveled are solved. Due to the fact that the rotating device is additionally arranged, the direction of the platen printer can be changed by the turnover vehicle, and the platen printers with different directions can be flexibly scheduled. Due to the fact that the lifting device is additionally arranged, when the movable platform is rotated, the height of the movable platform is changed through the lifting device, so that the movable platform and the table plate are located at different horizontal positions, and the movable platform is effectively prevented from colliding with the table plate when rotating.

Drawings

FIG. 1 is a schematic view of a turnover vehicle according to an embodiment of the present application;

FIG. 2 is a schematic view of a turnover vehicle from another perspective in accordance with an embodiment of the present application;

FIG. 3 is a schematic view of a movement apparatus according to an embodiment of the present application;

FIG. 4 is a schematic diagram illustrating a structure of a lifting device according to an embodiment of the present application;

FIG. 5 is a schematic view of a lifting link assembly and lifting drive assembly according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a rotating device according to an embodiment of the present application;

FIG. 7 is a schematic view of a friction roller and adjustment assembly according to an embodiment of the present application.

Reference numerals: 1000. a movable platform;

1100. a printer travel rail; 1200. positioning the horses by a printing machine;

2000. A movement device;

2100. A walking chassis; 2200. a walking wheel; 2300. a travel drive assembly; 2310. a walking driving motor; 2320. a walking driving sprocket; 2330. a walking driven sprocket; 2340. a walking transmission chain; 2350. a walking transmission rotating shaft; 2360. a tensioning wheel; 2400. a guide mechanism; 2410. a guide connector; 2420. a guide roller; 2430. a guide plate; 2500. a walking sensor; 2600. a walking induction plate; 2700. a positioning mechanism; 2710. a movable positioning column; 2720. a positioning frame; 2721. positioning a support column; 2722. positioning the connecting column; 2723. positioning a connecting plate;

3000. a lifting device;

3100. Lifting the bearing frame; 3110. an upper mounting plate; 3120. a lower mounting plate; 3200. a first connection base; 3300. a second connecting seat; 3400. a lifting link assembly; 3410. a first link; 3411. a first end of the first link; 3412. a second end of the first link; 3420. a second link; 3421. a first end of the second link; 3422. a second end of the second link; 3430. a third link; 3431. a first end of a third link; 3432. a second end of the third link; 3440. a fourth link; 3441. a first end of a fourth link; 3442. a second end of the fourth link; 3500. a lifting driving assembly; 3510. a lifting driving motor; 3520. driving a screw rod; 3530. a first drive shaft; 3540. a second drive shaft; 3550. lifting guide rods; 3560. a protective sleeve; 3570. an auxiliary gas spring;

4000. a rotating device;

4100. Rotating the carrier; 4110. reinforcing ribs; 4120. a reinforcing plate; 4200. friction roller; 4300. a rotary drive assembly; 4310. a rotary drive motor; 4320. a drive friction sprocket; 4330. a driven friction sprocket; 4340. friction rotating shaft; 4350. a friction drive chain; 4400. an adjustment assembly; 4410. a friction fixing seat; 4411. friction through holes; 4420. friction bearing plate; 4430. a friction shaft mounting seat; 4440. friction abutment; 4441. friction screw holes; 4450. an adjusting spring; 4460. an adjusting nut; 4500. a bearing rotating shaft; 4600. a support wheel assembly; 4610. supporting rollers; 4620. a supporting wheel seat; 4700. a first rotation sensor; 4800. a second rotation sensor;

5000. a movable slide wire device;

5100. and (5) fixing the bracket.

Detailed Description

The present application will be described in further detail with reference to the following detailed description and the accompanying drawings, wherein like elements in the various embodiments are designated by like reference numerals. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, related operations of the present application have not been shown or described in the specification in order to avoid obscuring the core portions of the present application, and may be unnecessary to persons skilled in the art from a detailed description of the related operations, which may be presented in the description and general knowledge of one skilled in the art.

Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated.

The embodiment provides a turnover vehicle.

Referring to fig. 1 and 2, the turnover vehicle includes a movable platform 1000, a moving device 2000, a lifting device 3000, a rotating device 4000 and a moving slide wire device 5000.

Referring to fig. 3, the moving device 2000 includes a traveling chassis 2100, traveling wheels 2200, a traveling driving assembly 2300 and a guide mechanism 2400, the traveling chassis 2100 is driven to move by the traveling driving assembly 2300, the guide mechanism 2400 is used for guiding the movement of the traveling chassis 2100, no track is required to be laid, and the problems that the material transportation is hindered by the laying of the ground track, the passing of pedestrians and the leveling of the ground track are required are solved. Due to the fact that the rotating device 4000 is additionally arranged, the turnover vehicle can change the direction of the platen printer, and the platen printer with different directions can be flexibly scheduled. Because the lifting device 3000 is additionally arranged, when the movable platform 1000 is rotated, the height of the movable platform 1000 is changed through the lifting device 3000, so that the movable platform 1000 and the bedplate are positioned at different horizontal positions, and the movable platform 1000 is effectively prevented from colliding with the bedplate when rotating.

The movable platen 1000 is used to carry a platen printer.

Referring to fig. 1 and 2, in one embodiment, printer walking rails 1100 are provided on opposite sides of the top surface of the movable platform 1000 for walking of the platen printer, a printer positioning horse 1200 is provided on one side of the printer walking rails 1100, and the printer positioning horse 1200 is used to cooperate with the printer positioning posts to perform a positioning function on the platen printer.

Referring to fig. 1 and 2, the exercise device 2000 includes a traveling chassis 2100, traveling wheels 2200, a traveling drive assembly 2300, and a guide mechanism 2400.

Referring to fig. 1, a walking chassis 2100 is used for load bearing purposes.

Referring to fig. 1 and 2, in one embodiment, a road wheel 2200 is disposed at the bottom of the road chassis 2100 and is rotatably coupled to the road chassis 2100. Specifically, the road wheel 2200 is rotatably connected to the road chassis 2100 via a road transmission shaft 2350.

Referring to fig. 1 and 2, a traveling drive assembly 2300 is used to drive the traveling wheels 2200 to rotate to move the traveling chassis 2100 in a straight line between the plurality of platens.

Referring to fig. 1-3, in one embodiment, the travel drive assembly 2300 includes a travel drive motor 2310, a travel drive sprocket 2320, a travel driven sprocket 2330, a travel drive chain 2340, and a travel drive shaft 2350.

Referring to fig. 3, a traveling driving motor 2310 is fixedly connected to the traveling chassis 2100, a traveling driving sprocket 2320 is connected to an output end of the traveling driving motor 2310, and the traveling driving motor 2310 is used for driving the traveling driving sprocket 2320 to rotate. The traveling transmission rotating shaft 2350 is rotatably connected with the bottom of the traveling chassis 2100, traveling wheels 2200 are respectively arranged at two ends of the traveling transmission rotating shaft 2350, the traveling driven sprocket 2330 is fixedly connected with the traveling transmission rotating shaft 2350, and the traveling driving sprocket 2320 and the traveling driven sprocket 2330 are connected by the traveling transmission chain 2340, so that the traveling transmission rotating shaft 2350 and the traveling wheels 2200 can be driven to rotate when the traveling driving sprocket 2320 is driven.

When the traveling chassis 2100 needs to be driven to move, the traveling driving motor 2310 is started, the traveling driving sprocket 2320 is driven to rotate by the traveling driving motor 2310, the traveling driven sprocket 2330 and the traveling transmission rotating shaft 2350 are driven to move, and the traveling wheel 2200 is driven to rotate, so that traveling of the traveling chassis 2100 is achieved.

In other embodiments, the travel drive assembly 2300 may also employ a belt drive or a gear drive to drive the travel wheels 2200.

Referring to fig. 1-3, in one embodiment, two traveling driving shafts 2350 are provided, the two traveling driving shafts 2350 are parallel to each other, traveling driven sprockets 2330 are fixed on the two traveling driving shafts 2350, and a traveling driving chain 2340 connects the traveling driving sprocket 2320 with the two traveling driven sprockets 2330. So that the travel drive motor 2310 can simultaneously drive the rotation of the two travel transmission rotating shafts 2350.

In other embodiments, the walking transmission shaft 2350 may further be provided with three, four, etc., and the number of transmission shafts may be flexibly set according to the actual requirements of bearing and driving.

Referring to fig. 3, in one embodiment, the travel drive assembly 2300 further includes a tensioning wheel 2360, the tensioning wheel 2360 being rotatably coupled to the travel chassis 2100 and engaged with the travel drive chain 2340 for tensioning the travel drive chain 2340. The traveling drive chain 2340 is tensioned by a tensioning wheel 2360.

Referring to fig. 1-3, in one embodiment, the guide mechanism 2400 includes a first guide and a second guide.

Referring to fig. 1-3, the first guide member is connected to the traveling chassis 2100, and the second guide member is disposed at intervals along a movement path of the traveling chassis 2100, and when the traveling chassis 2100 is driven, the first guide member and the second guide member can be driven to cooperate to guide movement of the traveling chassis 2100.

By the cooperation of the first guide member and the second guide member, the movement of the traveling chassis 2100 is guided, which is advantageous in maintaining the traveling chassis 2100 to move in a straight line. The second guide members are arranged at intervals, and the second guide members are not required to be arranged at the positions of the material transportation and the pedestrian walking channels, so that the second guide members can not obstruct the material transportation and the pedestrian passing.

Referring to fig. 1-3, in one embodiment, the first guide comprises a guide wheel assembly and the second guide comprises a guide plate 2430, the guide plate 2430 being parallel to the path of movement of the walking chassis 2100, the guide wheel assembly being capable of rolling on the guide plate 2430 when mated with the guide plate 2430. The guiding of the movement of the walking chassis 2100 is achieved by the rolling of the guide wheel assembly on the guide plate 2430.

Referring to fig. 3, in one embodiment, the guide wheel assembly includes a guide link 2410 and at least two guide rollers 2420, one side of the guide link 2410 is fixedly connected with the walking chassis 2100, the other side is rotatably connected with the guide rollers 2420, and the guide rollers 2420 are used to roll on opposite sides of the guide plate 2430 to limit the movement of the walking chassis 2100 perpendicular to the direction of the guide plate 2430. When the guide wheel assembly is engaged with the guide plate 2430, the guide rollers 2420 clamp the guide plate 2430 from both sides of the guide plate 2430, limiting movement of the traveling chassis 2100 in a direction perpendicular to the guide plate 2430 is advantageous for maintaining linear movement of the traveling chassis 2100.

Referring to fig. 1-3, in one embodiment, two guide wheel assemblies are provided at intervals, each guide wheel assembly including four guide rollers 2420. In other embodiments, one, three, etc. of the guide wheel assemblies may be provided, and the number of guide wheel assemblies may be flexibly provided according to the size and guiding requirements of the walking chassis 2100, and each guide wheel assembly may include two, six, or other suitable number of guide rollers 2420.

Referring to fig. 1-3, in an embodiment, the movement device 2000 further includes a walking sensor 2500 and a walking sensing board 2600, the walking sensor 2500 is fixedly connected to a side of the walking chassis 2100 facing the guiding board 2430, the walking sensing board 2600 is fixedly connected to a side of the guiding board 2430 facing the walking chassis 2100, and the walking sensor 2500 is used to generate a walking sensing signal when moving to a position opposite to the walking sensing board 2600.

Referring to fig. 1-3, in one embodiment, the movement device 2000 further includes a positioning mechanism 2700, the positioning mechanism 2700 includes a movable positioning post 2710 and a positioning frame 2720, the movable positioning post 2710 is movably connected with the walking chassis 2100, the positioning frame 2720 is configured to be disposed on one side of the platen, and the positioning frame 2720 has a positioning groove, and the positioning groove is configured to be matched with the movable positioning post 2710.

Referring to fig. 1-3, in one embodiment, a movable positioning column 2710 is fixedly connected to the movable platform 1000, and when the movable platform 1000 rises or falls, the movable positioning column 2710 is driven to rise or fall, so as to realize the matching or the unmating of the movable positioning column 2710 and the positioning groove.

Referring to fig. 1-3, in one embodiment, the positioning rack 2720 includes a positioning support column 2721 and a positioning connection column 2722, wherein a top of the positioning support column 2721 is connected with the positioning connection column 2722 for supporting the positioning connection column 2722, and a positioning groove is disposed on a side of the positioning connection column 2722 facing the movable positioning column 2710.

Referring to fig. 1-3, two positioning support columns 2721 are provided, two movable positioning columns 2710 are respectively connected with two ends of a positioning connection column 2722, a positioning connection plate 2723 is arranged at the bottom of the positioning support column 2721, the positioning connection plate 2723 connects the positioning support column 2721 with a guide plate 2430, and the positioning connection plate 2723 is fixed on the ground or other fixed objects through bolts.

Referring to fig. 1 and 4, in one embodiment, the lifting device 3000 includes a lifting carrier 3100, a first connecting seat 3200, a second connecting seat 3300, a lifting link assembly 3400 and a lifting driving assembly 3500.

The lifting device 3000 is connected to the movable platform 1000, and is used for driving the movable platform 1000 to move up and down.

Referring to fig. 1 and 4, a lifting carrier 3100 is used for carrying a movable platform 1000, a first connecting seat 3200 is connected to the lifting carrier 3100, and a second connecting seat 3300 is used for connecting to a rotating carrier 4100.

Referring to fig. 4 and 5, the lifting link assembly 3400 is connected to the first connecting seat 3200 and the second connecting seat 3300, and the lifting link assembly 3400 can drive the first connecting seat 3200 to rise or fall when driven.

Referring to fig. 4 and 5, in one embodiment, the lifting link assembly 3400 includes a first link 3410, a second link 3420, a third link 3430, and a fourth link 3440, the first link 3410 having a first end 3411 and a second end 3412 disposed opposite each other, the second link 3420 having a first end 3421 and a second end 3422 disposed opposite each other, the first end 3411 of the first link being rotatably connected to the first connection block 3200, the second end 3412 of the first link being rotatably connected to the first end 3421 of the second link, and the second end 3422 of the second link being rotatably connected to the second connection block 3300.

The third link 3430 has a first end 3431 and a second end 3432 disposed opposite each other, the fourth link 3440 has a first end 3441 and a second end 3442 disposed opposite each other, the first end 3431 of the third link is rotatably coupled to the first coupling seat 3200, the second end 3432 of the third link is rotatably coupled to the first end 3441 of the fourth link, and the second end 3442 of the fourth link is rotatably coupled to the second coupling seat 3300. The first, second, third and fourth links 3410, 3420, 3430 and 3440 can drive the first connecting seat 3200 to ascend or descend when driven.

Referring to fig. 4 and 5, in one embodiment, two lifting link assemblies 3400 are provided, the two lifting link assemblies 3400 are disposed opposite to each other, one end of a first driving shaft 3530 is rotatably connected to a second end 3412 of a first link and a first end 3421 of a second link of one lifting link assembly 3400, and the other end of the first driving shaft 3530 is rotatably connected to a second end 3412 of a first link and a first end 3421 of a second link of the other lifting link assembly 3400.

One end of the second driving shaft 3540 is rotatably connected to the second end 3432 of the third link and the first end 3441 of the fourth link of one lifting link assembly 3400, and the other end of the second driving shaft 3540 is rotatably connected to the second end 3432 of the third link and the first end 3441 of the fourth link of the other lifting link assembly 3400, and when the second driving shaft 3540 is driven, it can drive the two lifting link assemblies 3400 to move. The first connecting seat 3200 is driven to ascend or descend through the two lifting connecting rod assemblies 3400, so that the transmission process is more stable and reliable.

Referring to fig. 5, a lift drive assembly 3500 is provided for driving movement of lift link assembly 3400.

Referring to fig. 5, in one embodiment, the elevation drive assembly 3500 includes an elevation drive motor 3510, a drive screw 3520, a first drive shaft 3530, and a second drive shaft 3540.

Referring to fig. 5, a first driving shaft 3530 is disposed opposite to a second driving shaft 3540, the first driving shaft 3530 is rotatably connected to a second end 3412 of the first link and a first end 3421 of the second link, and the second driving shaft 3540 is rotatably connected to a second end 3432 of the third link and a first end 3441 of the fourth link. The lifting driving motor 3510 is fixedly connected with the first driving shaft 3530, the driving screw 3520 is arranged along the horizontal direction, the driving screw 3520 is connected with the output end of the lifting driving motor 3510, the lifting driving motor 3510 is used for driving the driving screw 3520 to rotate, the second driving shaft 3540 is sleeved on the driving screw 3520 and is in threaded connection with the driving screw 3520, and the second driving shaft 3540 can be driven to move on the driving screw 3520 when the driving screw 3520 is driven, so that the lifting connecting rod assembly 3400 is driven.

When the lifting connecting rod assembly 3400 needs to be driven to move, the lifting driving motor 3510 is started, the driving screw 3520 is driven to rotate by the lifting driving motor 3510, the second driving shaft 3540 is driven to move on the driving screw 3520, and then the first driving shaft 3530 and the second driving shaft 3540 are driven to be close to or far away from each other in the horizontal direction. When the first driving shaft 3530 and the second driving shaft 3540 are close to each other in the horizontal direction, the first connecting rod 3410, the second connecting rod 3420, the third connecting rod 3430 and the fourth connecting rod 3440 are driven to extend, and the first connecting seat 3200 is driven to ascend, and when the first driving shaft 3530 and the second driving shaft 3540 are far away from each other in the horizontal direction, the first connecting rod 3410, the second connecting rod 3420, the third connecting rod 3430 and the fourth connecting rod 3440 are driven to fold, and the first connecting seat 3200 is driven to descend.

Referring to fig. 5, the first driving shaft 3530 and the second driving shaft 3540 include trapezoidal nut shafts having a self-locking function. Reverse driving is prevented through the trapezoidal nut shaft with self-locking function, namely, the lifting connecting rod assembly 3400 can only be driven to move through the driving screw rod 3520, and the driving screw rod 3520 cannot be driven to rotate through the lifting connecting rod assembly 3400, so that the lifting connecting rod assembly 3400 can effectively support the first connecting seat 3200, and the safety of the lifting device 3000 is improved.

Referring to fig. 1 and 2, in one embodiment, the lifting device 3000 further includes a lifting sensor (not shown in the drawings), a high-level sensing plate (not shown in the drawings), and a low-level sensing plate (not shown in the drawings), where the lifting sensor is connected to the movable platform 1000, the height positions of the high-level sensing plate and the low-level sensing plate are fixed, the lifting sensor generates a high-level sensing signal when moving to a position opposite to the high-level sensing plate, and the lifting sensor generates a low-level sensing signal when moving to a position opposite to the low-level sensing plate.

Referring to fig. 1 and 2, the lifting sensor is fixedly connected to the movable platform 1000, and the upper sensing plate and the lower sensing plate are fixedly connected to a side of the positioning frame 2720 facing the movable platform 1000.

Referring to fig. 4 and 5, in one embodiment, the lifting device 3000 further includes a lifting guide 3550, one end of the lifting guide 3550 is connected to the lifting carrier 3100, the other end is connected to the rotating carrier 4100, and the lifting guide 3550 is used for guiding the lifting motion of the lifting carrier 3100.

Referring to fig. 4 and 5, the lifting guide rods 3550 are provided with four in the circumferential direction of the rotating carrier 4100. Specifically, the lifting guide rod 3550 may include a first guide rod and a second guide rod that are slidably connected, and when the lifting carrier 3100 ascends or descends, the first guide rod and the second guide rod can be driven to slide relatively, so as to play a guiding role on the movement of the lifting carrier 3100.

Referring to fig. 4 and 5, in one embodiment, the lifting device 3000 further includes a protective sleeve 3560, and the protective sleeve 3560 is sleeved on the lower portion of the lifting guide 3550, so as to support the lifting carrier 3100 when other supporting structures break. Specifically, a buffer layer, such as a rubber buffer layer, may be disposed on a side of the protection sleeve 3560 facing the lifting carrier 3100.

When the lifting link assembly 3400, the driving screw 3520, the first driving shaft 3530, or the second driving shaft 3540 is broken, the lifting carrier 3100 falls to the protective sleeve 3560, and the lifting carrier 3100 is supported by the protective sleeve 3560, preventing the lifting carrier 3100 from collapsing.

Referring to fig. 4 and 5, in one embodiment, the lifting device 3000 further includes an auxiliary gas spring 3570, wherein one end of the auxiliary gas spring 3570 is connected to the lifting carrier 3100, and the other end is connected to the rotating carrier 4100, so as to support the lifting carrier 3100.

Referring to fig. 4 and 5, the auxiliary gas springs 3570 are provided with four in the circumferential direction of the rotary carrier 4100. The elevating carriage 3100 is supported by the auxiliary gas spring 3570 to reduce the supporting force provided by the elevating link assembly 3400.

In another embodiment, the lifting link assembly may also employ a scissor-type link, such as two links with middle portions hinged to each other, with the top of the link slidably connected to the lifting carriage and the bottom of the link slidably connected to the rotating carriage. The lifting driving assembly can select an air cylinder, the top or the bottom of the connecting rod is pushed to slide through the air cylinder, and the connecting rod is driven to rotate around the hinge joint in the middle of the connecting rod, so that the lifting bearing frame is driven.

In another embodiment, the lifting device adopts a worm screw lifter, for example, the worm screw lifter can be respectively arranged on two opposite sides of the lifting bearing frame, and the whole lifting of the lifting bearing frame is controlled by two driving motors. The stability of the lifting motion of the movable platform is better, and the problem that the scissor type lifting structure is easy to sink due to the stress on the periphery is solved.

Referring to fig. 1 and 6, the rotating apparatus 4000 includes a rotating carrier 4100, a friction roller 4200, a rotation driving assembly 4300, and an adjusting assembly 4400.

The rotating device 4000 is disposed on the traveling chassis 2100 and connected to the elevating device 3000 for driving the elevating device 3000 and the movable platform 1000 to rotate.

Referring to fig. 1 and 6, a rotating carrier 4100 is used for carrying the movable platform 1000, and the rotating carrier 4100 has a rotating connection portion for rotating connection with the traveling chassis 2100.

Referring to fig. 6, in an embodiment, the rotating device 4000 further includes a bearing shaft 4500, the rotating connection portion is located at the center of the rotating carrier 4100, one end of the bearing shaft 4500 is rotatably connected to the rotating connection portion, and the other end is used for being connected to the walking chassis 2100. The rotational connection of the rotational carrier 4100 to the walking chassis 2100 is achieved by a carrier rotational shaft 4500.

Referring to fig. 6, in particular, a tapered roller bearing may be mounted on the bearing shaft 4500, and the bearing shaft 4500 may be connected to the rotary carrier 4100 through a shaft end flange.

Referring to fig. 6 and 7, the friction roller 4200 is rotatably disposed, the friction roller 4200 abuts against the rotating carrier 4100, and the friction roller 4200 can rotate the rotating carrier 4100 when driven.

Referring to fig. 7, in one embodiment, the friction roller 4200 comprises a rubber wheel. The rubber wheel has a larger surface friction coefficient, which is beneficial to driving the rotary carrier 4100 to rotate.

Referring to fig. 6 and 7, in one embodiment, the rotary drive assembly 4300 includes a rotary drive motor 4310, a drive friction sprocket 4320, a driven friction sprocket 4330, a friction shaft 4340, and a friction drive chain 4350. The rotary drive assembly 4300 is used to drive the friction roller 4200 to rotate.

Referring to fig. 6 and 7, the driving friction sprocket 4320 is connected to an output end of a rotary driving motor 4310, and the rotary driving motor 4310 is used for driving the driving friction sprocket 4320 to rotate. The friction rotating shaft 4340 is rotatably arranged, the friction roller 4200 is connected with the friction rotating shaft 4340, the friction rotating shaft 4340 can drive the friction roller 4200 to rotate when being rotated, the driven friction sprocket 4330 is connected with the friction rotating shaft 4340, and the friction transmission chain 4350 connects the driving friction sprocket 4320 with the driven friction sprocket 4330, so that the driving friction sprocket 4320 can drive the driven friction sprocket 4330 and the friction rotating shaft 4340 to rotate when being driven.

When the friction roller 4200 needs to be driven to rotate, the rotary driving motor 4310 is started, the driving friction sprocket 4320 is driven to rotate by the rotary driving motor 4310, the driven friction sprocket 4330 and the friction rotating shaft 4340 are driven to rotate, and the friction roller 4200 is driven to rotate.

In other embodiments, a gear or belt drive may be used to rotate the friction roller 4200. For example, a driven gear is fixedly arranged on the bearing rotating shaft 4500, and the driving gear is driven to rotate through the three-phase motor and the speed reducer, so that the driven gear and the bearing rotating shaft 4500 are driven to rotate, and the gear transmission is more accurate and stable. The design scheme of the friction transmission adjusting component 4400 is omitted, the processing parts are few, the driving mode is precise, and the reliability is high.

Referring to fig. 6 and 7, in one embodiment, the adjustment assembly 4400 includes a friction fixing base 4410, a friction bearing plate 4420, a friction shaft mounting base 4430, a friction abutment 4440, an adjustment spring 4450, an adjustment bolt (not shown), and an adjustment nut 4460. The adjusting component 4400 is used for adjusting the abutting force between the friction roller 4200 and the rotating carrier 4100.

Referring to fig. 6 and 7, the friction fixing base 4410 is used for connecting with the walking chassis 2100, the friction bearing plate 4420 is carried on the friction fixing base 4410, one side of the friction bearing plate 4420 is hinged with the friction fixing base 4410, and the other side is hinged with the friction abutting block 4440. The friction abutting block 4440 is provided with a friction screw hole 4441, the friction fixing seat 4410 is provided with a friction through hole 4411, an adjusting bolt penetrates through the friction through hole 4411 and the friction screw hole 4441 and is in threaded connection with the friction screw hole 4441, the adjusting bolt is sleeved by the adjusting spring 4450, one end of the adjusting spring 4450 abuts against the friction abutting block 4440, and the other end abuts against the friction fixing seat 4410, so that floating support of the friction bearing plate 4420 is achieved. The adjusting nut 4460 is positioned at the bottom of the friction fixing seat 4410 and is sleeved with the adjusting bolt, the friction shaft mounting seat 4430 is fixedly connected with the friction bearing plate 4420, and the friction rotating shaft 4340 is rotatably connected with the friction shaft mounting seat 4430. The amount of the tightening force between the friction roller 4200 and the rotating carrier 4100 is adjusted by changing the length of the adjusting bolt located on the upper side of the friction fixing base 4410.

Referring to fig. 6 and 7, in one embodiment, the rotating device 4000 further includes a supporting wheel assembly 4600, the supporting wheel assembly 4600 includes a supporting roller 4610 and a supporting wheel seat 4620, the supporting roller 4610 is rotatably connected with the supporting wheel seat 4620, the supporting wheel seat 4620 is used for being connected with the walking chassis 2100, and the supporting roller 4610 is contacted with the bottom of the rotating carrier 4100 for supporting the rotating carrier 4100.

Referring to fig. 6 and 7, in one embodiment, the support wheel assembly 4600 is provided with four in the circumferential direction of the rotating carrier 4100. The side of the rotating carrier 4100 is supported by the support wheel assembly 4600 so that the rotation of the rotating carrier 4100 is smoother.

Referring to fig. 6, in one embodiment, the rotating carrier 4100 has a stiffener 4110 and a stiffener 4120, the stiffener 4120 having a lifting through hole for receiving and securing the bottom of the lifting guide 3550.

Referring to fig. 6, in one embodiment, the elevating carriage 3100 has an upper mounting plate 3110 and a lower mounting plate 3120, the upper mounting plate 3110 has an upper through hole, the lower mounting plate 3120 has a lower through hole, the upper through hole is for receiving and fixing the top of the elevating guide 3550, and the lower through hole is for passing through the middle of the elevating guide 3550.

Referring to fig. 1,2 and 6, in one embodiment, the rotating device 4000 further includes a rotation sensing plate (not shown), a first rotation sensor 4700 and a second rotation sensor 4800, the rotation sensing plate is configured to be disposed on one side of the platen, the first rotation sensor 4700 is configured to be connected to one side of the movable platform 1000, the second rotation sensor 4800 is configured to be connected to the other side of the movable platform 1000, the first rotation sensor 4700 generates a first rotation sensing signal when rotated to a position opposite to the rotation sensing plate, and the second rotation sensor 4800 generates a second rotation sensing signal when rotated to a position opposite to the rotation sensing plate. When the control system receives the first rotation sensing signal, the control system controls the rotation driving motor 4310 to reduce the rotation speed, so that the rotation speed of the rotating carrier 4100 is reduced, and when the control system receives the second rotation sensing signal, the control system controls the rotation driving motor 4310 to stop working, so that the rotating carrier 4100 stops rotating.

Referring to fig. 1,2 and 6, in one embodiment, the first rotation sensor 4700 and the second rotation sensor 4800 are integrated with the function of the lifting sensor, for example, when the first rotation sensor 4700 rotates to a side close to the positioning frame 2720, the first rotation sensor 4700 may be used as the lifting sensor, and when the second rotation sensor 4800 rotates to a side close to the positioning frame 2720, the second rotation sensor 4800 may be used as the lifting sensor, that is, the first rotation sensor 4700 and the second rotation sensor 4800 may be used for sensing with both the rotation sensing plate and the high sensing plate and the low sensing plate. In other embodiments, the first rotation sensor 4700, the second rotation sensor 4800, and the lift sensor may be provided as different sensors, respectively.

Referring to fig. 1 and 2, in one embodiment, a movable slide 5000 is fixedly connected to a movable platform 1000 via a fixed bracket 5100, and the movable slide 5000 is used to supply power to a platen printer. When the platen printer moves on the movable platform 1000, the platen printer takes electricity from the trolley line on the movable trolley line device 5000, so that the purpose of movable power supply is achieved. The platen is also provided with a movable slide wire device 5000, and the movable slide wire device 5000 on the turnover vehicle can be in butt joint with the movable slide wire device 5000 on the platen.

Summary of working procedure: when the platen printer needs to be scheduled among different platens (the orientation of the platen printer needs to be changed), the movable platform 1000 is driven to move to the platen bearing the platen printer to be taken by the moving device 2000, at the moment, the movable platform 1000 is flush with the platen, and the platen printer moves to the movable platform 1000 through the printer walking track 1100 and realizes positioning through the printer positioning column. Then, the movable platform 1000 is driven to rise by the elevating device 3000, and when the elevating sensor senses the high-level sensing plate, the rising is stopped, and at this time, the movable platform 1000 is positioned at the highest level (higher than the platen). The movable platform 1000 is driven to rotate 180 degrees through the rotating device 4000, meanwhile, the moving device 2000 drives the movable platform 1000 to move towards the platen of the platen printer to be placed, the two actions are executed simultaneously, and when the movable platform 1000 rotates in place, the movable platform 1000 also walks to the platen of the platen printer to be placed. Then, the movable platform 1000 is driven to descend by the lifting device 3000, and when the lifting sensor senses the low-level sensing plate, the movable platform 1000 stops descending and is located at the lowest level (flush with the platen). And then the positioning of the positioning column of the printing machine is released, the platen printing machine moves to the platen of the platen printing machine to be placed through the printing machine walking track 1100, and the dispatching of the platen printing machine is completed.

The foregoing is a further detailed description of the application in connection with specific embodiments, and it is not intended that the application be limited to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions can be made without departing from the inventive concept.

Claims (7)

1. A turnover vehicle, comprising:

A movable platform for carrying a platen printer;

The travelling device comprises a travelling chassis, travelling wheels, a travelling driving assembly and a guiding mechanism, wherein the travelling chassis is used for bearing, the travelling wheels are arranged at the bottom of the travelling chassis and are rotationally connected with the travelling chassis, the travelling driving assembly is used for driving the travelling wheels to rotate so as to drive the travelling chassis to move among a plurality of platens along a straight line, the guiding mechanism comprises a first guiding piece and a second guiding piece, the first guiding piece is connected with the travelling chassis, the second guiding piece is arranged at intervals along a movement path of the travelling chassis, and when the travelling chassis is driven, the first guiding piece and the second guiding piece can be driven to cooperate so as to play a guiding role on the movement of the travelling chassis;

The lifting device is connected with the movable platform and used for driving the movable platform to move up and down;

The rotating device is arranged on the walking chassis, is connected with the lifting device and is used for driving the lifting device and the movable platform to rotate;

The walking driving assembly comprises a walking driving motor, a walking driving sprocket, a walking driven sprocket, a walking transmission chain and a walking transmission rotating shaft, wherein the walking driving motor is fixedly connected with the walking chassis, the walking driving sprocket is connected with the output end of the walking driving motor, and the walking driving motor is used for driving the walking driving sprocket to rotate;

the walking transmission rotating shaft is rotationally connected with the bottom of the walking chassis, walking wheels are arranged at two ends of the walking transmission rotating shaft, the walking driven sprocket is fixedly connected with the walking transmission rotating shaft, and the walking transmission chain is used for connecting the walking driving sprocket with the walking driven sprocket, so that the walking driving sprocket can drive the walking transmission rotating shaft and the walking wheels to rotate when being driven;

the first guide piece comprises a guide wheel assembly, the second guide piece comprises a guide plate, the guide plate is parallel to the movement path of the walking chassis, and the guide wheel assembly can roll on the guide plate when being matched with the guide plate;

The guide wheel assembly comprises a guide connecting piece and at least two guide rollers, one side of the guide connecting piece is fixedly connected with the walking chassis, the other side of the guide connecting piece is rotationally connected with the guide rollers, and the guide rollers are used for rolling on two opposite sides of the guide plate so as to limit the walking chassis not to move in a direction perpendicular to the guide plate;

The lifting device comprises a lifting bearing frame, a lifting connecting rod assembly and a lifting driving assembly, wherein the lifting bearing frame is used for bearing the movable platform, and the lifting driving assembly is used for driving the lifting connecting rod assembly to move;

the rotating device comprises a rotating bearing frame, a friction roller, a rotating driving assembly and an adjusting assembly, wherein the rotating bearing frame is used for bearing the movable plate, and the rotating bearing frame is provided with a rotating connecting part and is used for being connected with the walking chassis in a rotating mode.

2. The transfer cart of claim 1, wherein the lifting device further comprises a first connecting seat and a second connecting seat, the first connecting seat is connected with the lifting carrier, the second connecting seat is used for being connected with the rotating carrier, the lifting link assembly is connected with the first connecting seat and the second connecting seat, and the lifting link assembly can drive the first connecting seat to ascend or descend when driven.

3. The cycle of claim 2, wherein the lift link assembly comprises a first link having oppositely disposed first and second ends, a second link having oppositely disposed first and second ends, the first end of the first link being rotatably coupled to the first coupling seat, the second end of the first link being rotatably coupled to the first end of the second link, the second end of the second link being rotatably coupled to the second coupling seat;

The third connecting rod is provided with a first end and a second end which are oppositely arranged, the fourth connecting rod is provided with a first end and a second end which are oppositely arranged, the first end of the third connecting rod is rotationally connected with the first connecting seat, the second end of the third connecting rod is rotationally connected with the first end of the fourth connecting rod, and the second end of the fourth connecting rod is rotationally connected with the second connecting seat.

4. The cycle of claim 2, wherein the lift drive assembly comprises a lift drive motor, a drive screw, a first drive shaft and a second drive shaft, the first drive shaft disposed opposite the second drive shaft, the first drive shaft rotatably coupled to the second end of the first link and the first end of the second link, the second drive shaft rotatably coupled to the second end of the third link and the first end of the fourth link;

The lifting driving motor is fixedly connected with the first driving shaft, the driving screw rod is arranged in the horizontal direction, the driving screw rod is connected with the output end of the lifting driving motor, the lifting driving motor is used for driving the driving screw rod to rotate, the second driving shaft is sleeved on the driving screw rod and is in threaded connection with the driving screw rod, and the driving screw rod can drive the second driving shaft to move on the driving screw rod when being driven so as to drive the lifting connecting rod assembly.

5. The turnover vehicle of claim 1, wherein the friction roller is rotatably arranged, the friction roller abuts against the rotary carrier, the friction roller can drive the rotary carrier to rotate when driven, the rotary driving assembly is used for driving the friction roller to rotate, and the adjusting assembly is used for adjusting the abutting force between the friction roller and the rotary carrier.

6. The turnover vehicle of claim 5, wherein the rotary drive assembly comprises a rotary drive motor, a drive friction sprocket, a driven friction sprocket, a friction shaft and a friction drive chain, the drive friction sprocket being connected to an output of the rotary drive motor, the rotary drive motor being configured to drive the drive friction sprocket to rotate;

The friction rotating shaft is rotationally arranged, the friction roller is connected with the friction rotating shaft, the friction rotating shaft can drive the friction roller to rotate when being rotated, the driven friction sprocket is connected with the friction rotating shaft, and the friction transmission chain is connected with the driving friction sprocket and the driven friction sprocket, so that the driving friction sprocket can drive the driven friction sprocket and the friction rotating shaft to rotate when being driven.

7. The turnover vehicle of claim 6, wherein the adjusting assembly comprises a friction fixing seat, a friction bearing plate, a friction shaft mounting seat, a friction abutting block, an adjusting spring, an adjusting bolt and an adjusting nut, wherein the friction fixing seat is used for being connected with the walking chassis, the friction bearing plate is borne on the friction fixing seat, one side of the friction bearing plate is hinged with the friction fixing seat, and the other side of the friction bearing plate is hinged with the friction abutting block;

The friction butt piece has the friction screw, the friction fixing base has the friction through-hole, adjusting bolt runs through friction through-hole and friction screw to with friction screw threaded connection, adjusting spring housing adjusting bolt, adjusting spring one end and friction butt piece butt, the other end and friction fixing base butt in order to realize the floating support to friction loading board, adjusting nut is located the bottom of friction fixing base to cup joint with adjusting bolt, friction axle mount pad and friction loading board rigid coupling, friction pivot and friction axle mount pad rotate and are connected.