Printing carriage

Abstract

The application discloses a printing trolley. The trolley comprises a trolley upper plate and a trolley lower plate, a plurality of front and rear side-by-side height adjusting assemblies are arranged between the trolley upper plate and the trolley lower plate, the height adjusting assembly comprises a plurality of left and right equidistant height adjusting mechanisms, the height adjusting mechanism is used for adjusting the height of the corresponding position on the trolley lower plate, a printing assembly is arranged on the trolley lower plate, the printing assembly comprises a plurality of front and rear side-by-side printing mechanisms, the printing mechanism comprises an ink supply module and a plurality of printing nozzles, the printing nozzle is arranged at the bottom of the ink supply module, and anti-collision assemblies are symmetrically arranged on the front and rear sides of the trolley lower plate. A driving assembly is arranged on the trolley upper plate and is used for driving the printing trolley to move left and right. The application has the advantages of effectively protecting the printing nozzle, improving the printing efficiency and improving the printing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing devices, in particular to a printing trolley. BACKGROUND

[0002] The printing trolley of the existing printing equipment is used for printing in cooperation with a platform, the platform is used for moving the printing object carried thereby to the bottom of the printing trolley, so that the printing head at the bottom of the printing trolley prints the printing object, and the printing trolley can also move to above the printing object to print.

[0003] In a high-speed printing process, since some printing objects are relatively soft, wrinkles are easily caused when the printing platform is not firmly adsorbed, and the protruding wrinkles can collide with the printing head to cause damage, so that the printing work has to be stopped. Meanwhile, since the size of the lower plate of the trolley is large, the number of printing heads carried is large, and the load carried by the lower plate of the trolley is too heavy, which causes the printing head at some positions to be lowered due to sinking, so that the printing head is damaged after being contacted with the printing object, and the subsequent printing effect is also reduced. SUMMARY

[0004] The present application provides a printing trolley, which has the advantages of effectively protecting the printing head, improving the printing efficiency and improving the printing effect.

[0005] In order to solve the above problems, the present application adopts the following technical scheme:

[0006] The printing trolley comprises a trolley upper plate and a trolley lower plate, a plurality of front and rear side-by-side height adjusting assemblies are arranged between the trolley upper plate and the trolley lower plate, the height adjusting assembly comprises a plurality of left and right equidistant height adjusting mechanisms, the height adjusting mechanism is used for adjusting the height of the corresponding position on the trolley lower plate, a printing assembly is arranged on the trolley lower plate, the printing assembly comprises a plurality of front and rear side-by-side printing mechanisms, the printing mechanism comprises an ink supply module and a plurality of printing heads, the printing head is arranged at the bottom of the ink supply module, and anti-collision assemblies are symmetrically arranged on the front and rear sides of the trolley lower plate, a driving assembly is arranged on the trolley upper plate, and the driving assembly is used for driving the printing trolley to move left and right.

[0007] In the present application, when the surface of the printing object is protruding, the protrusion can trigger the anti-collision assembly to make the anti-collision assembly work and stop the movement of the printing object to protect the printing head.

[0008] The trolley lower plate is provided with a plurality of printing nozzles. The quality of the printing nozzles may cause some parts of the trolley lower plate to sink. The sinking of some parts of the trolley lower plate may cause the printing nozzles at the parts to drop, so that the printing nozzles directly contact the printing object and are damaged, and the printing effect is reduced. In order to prevent the printing nozzles from contacting the printing object due to the deformation of some parts of the trolley lower plate, the height adjusting mechanism of the corresponding part is adjusted to forcibly lift the trolley lower plate at the part to a suitable position, so that the flatness of the trolley lower plate is restored to a suitable state. After the trolley lower plate at the part is lifted, the printing nozzles no longer contact the printing object, the printing nozzles are protected, and the printing effect of the printing nozzles installed on the trolley lower plate is improved when the flatness of the trolley lower plate is restored.

[0009] As a preferred, the height adjusting mechanism comprises an upper screw rod, a lower screw rod and a connecting column, the top of the upper screw rod is fixedly connected with the trolley upper plate, the bottom of the lower screw rod is fixedly connected with the trolley lower plate, the connecting column is arranged between the upper screw rod and the lower screw rod, the bottom of the upper screw rod is threadedly connected with the top of the connecting column, the bottom of the connecting column is threadedly connected with the top of the lower screw rod, a sleeve pipe is sleeved outside the upper screw rod, a positioning nut is arranged on the upper screw rod and used for positioning the sleeve pipe, a first movable nut is further arranged on the upper screw rod and located above the connecting column, and the screw threads of the upper screw rod and the lower screw rod are opposite. When the flatness of the trolley lower plate needs to be adjusted, the connecting column only needs to be rotated. Because the screw threads of the upper screw rod and the lower screw rod are opposite, when the connecting column is rotated, the distance between the upper screw rod and the lower screw rod changes. At this time, the lower screw rod drives the trolley lower plate to slightly change the height, so as to change the flatness of the trolley lower plate at the corresponding position.

[0010] As a preferred, the middle part of the connecting column is provided with a first through hole, the top of the lower screw rod extends into the first through hole, the lower screw rod is provided with a limiting nut and a second movable nut, the limiting nut is located in the first through hole, and the second movable nut is located below the connecting column. After the flatness of the trolley lower plate is adjusted by rotating the connecting column to drive the lower screw rod, the second movable nut is rotated to tightly adhere to the bottom of the connecting column, so that the lower screw rod is locked.

[0011] As a preferred, the printing mechanism further comprises two installation plates which are symmetrically arranged left and right, the bottom of the installation plate is fixedly connected with the top of the trolley lower plate, the ink supply module is provided with a connecting support at the front and rear ends, and the bottom of the connecting support is fixedly connected with the installation plate through fasteners.

[0012] As preferred, the printing nozzles of the printing mechanism are arranged in a straight line along the left-right direction, the printing nozzles of the adjacent two printing mechanisms are staggered, the inner side of the ink supply module is provided with a water cooling plate, the water cooling plate is provided with a nozzle driving plate at the corresponding position of the printing nozzles on the front and back sides, the nozzle driving plate is detachably connected with the water cooling plate through a clamping piece, the nozzle driving plate is electrically connected with the corresponding printing nozzle, and the left and right ends of the water cooling plate are provided with water cooling connecting brackets which are fixedly connected with the mounting plate through fasteners. The nozzle driving plate is detachably connected with the water cooling plate through the clamping piece, so as to facilitate the replacement and maintenance of the nozzle driving plate.

[0013] As preferred, the driving assembly comprises a first driving module, the first driving module comprises a slide rail frame arranged above the upper plate of the trolley, a partition plate is arranged below the slide rail frame, first slide rails are symmetrically arranged on the bottom surface of the slide rail frame, the first slide rails are arranged along the left-right direction, a first sliding block is arranged on the top of the partition plate at the position corresponding to the first slide rail, the first sliding block is connected with the first slide rail on the corresponding side and can slide along the corresponding first slide rail, a first driving cylinder is arranged on the left side of the slide rail frame, the extension end of the first driving cylinder is connected with the partition plate through a first connecting piece, a second driving cylinder is arranged on the right side of the slide rail frame, the extension end of the second driving cylinder is connected with the partition plate through a second connecting piece, and the partition plate is connected with the upper plate of the trolley through a second driving module. The first driving cylinder and the second driving cylinder are used to drive the partition plate to slide on the first slide rail through the first sliding block, so as to quickly drive the partition plate, the second driving assembly and the upper plate of the trolley to move left and right. The movement of the upper plate of the trolley drives the lower plate of the trolley and the printing nozzle to move synchronously.

[0014] As preferred, the second driving assembly comprises a driving motor and two second slide rails which are symmetrically arranged in front and back, the second slide rails are arranged along the left-right direction, the second slide rails are arranged on the top of the upper plate of the trolley, the second slide rails are provided with a second sliding block which can slide along the second slide rails, the second sliding block is fixedly connected with the bottom of the partition plate, and the driving motor is used to drive the upper plate of the trolley to move left and right on the second slide rails with the second sliding block. When the first driving assembly moves to the end, the second driving assembly drives the upper plate of the trolley to move left and right precisely through the driving motor, and the second sliding block slides on the second slide rail when the upper plate of the trolley moves.

[0015] As preferred, the anti-collision assembly comprises two left and right symmetrical connecting blocks, an oscillation assembly is arranged between the two connecting blocks, the oscillation assembly comprises an anti-collision main beam, a plurality of anti-collision trigger pieces are arranged on the front and back sides of the anti-collision main beam, the anti-collision main beam is rotatably connected to the connecting block on the corresponding side at both ends, a trigger assembly is arranged on the anti-collision main beam, the trigger assembly comprises an oscillation piece and a detection mechanism, the oscillation piece is arranged on the left side of the anti-collision main beam, the detection mechanism is arranged on the connecting block on the left side, the detection part of the oscillation piece extends into the detection area of the detection mechanism, and the detection mechanism is used for detecting whether the detection part is located in the detection area. When the protrusion on the surface of the printing object touches the anti-collision trigger piece, the protrusion will drive the anti-collision trigger piece to oscillate, the anti-collision trigger piece drives the anti-collision main beam to oscillate, and the anti-collision main beam drives the oscillation piece to oscillate, the detection part of the oscillation piece will be out of the detection area of the detection mechanism when oscillating, and the detection mechanism can send a signal when the detection part of the oscillation piece is not located in the detection area, the signal is transmitted to the platform carrying the printing object, and the platform stops moving after receiving the signal, so that damage of the printing head caused by the protrusion is avoided.

[0016] As preferred, the left end of the anti-collision main beam is rotatably connected to the connecting block on the left side through a rotating shaft, the rotating shaft extends through the connecting block on the left side and is rotatably connected to the connecting block, the right end of the rotating shaft is fixedly connected to the anti-collision main beam, and the left end of the rotating shaft is further provided with a first balancing assembly. The right end of the anti-collision main beam is rotatably connected to the connecting block on the right side through a second balancing assembly. The first balancing assembly and the second balancing assembly are used for keeping the balance of the anti-collision main beam, and the first balancing assembly and the second balancing assembly can accelerate the returning speed of the anti-collision main beam when the anti-collision main beam oscillates.

[0017] As preferred, the second balancing assembly comprises two balancing pieces and a connecting plate, the two balancing pieces are symmetrically arranged on the rear end of the anti-collision main beam, the top of the connecting plate is fixedly connected to the bottoms of the two balancing pieces, the connecting plate is rotatably connected to the connecting block on the rear side through an angle adjusting mechanism, the angle adjusting mechanism comprises a rotating plate and two adjusting grooves arranged on the connecting plate, the connecting plate and the rotating plate are vertically arranged, the rotating plate is provided with a second through hole, the anti-collision main beam passes through the second through hole, the connecting plate is located on the right side of the connecting block on the right side, the adjusting grooves are arranged in a vertical direction, and the adjusting grooves pass through the connecting plate in a horizontal direction. The rotating plate is located between the connecting plate and the connecting block and is rotatably connected to the connecting block, a locking piece that can slide in the adjusting groove is arranged in the adjusting groove, and the connecting plate is connected to the rotating plate through the locking piece. When it is necessary to adjust the angle of the anti-collision main beam, the locking piece is unlocked, the connecting plate and the rotating plate are unlocked, the angle of the connecting plate is adjusted at this time to cover the angle of the anti-collision main beam, and the locking piece is locked after the angle adjustment of the connecting plate is completed, so that the connecting plate and the rotating plate are locked, and the angle adjustment of the anti-collision main beam is completed at this time.

[0018] The beneficial effects of the present application are: the height adjusting mechanism can adjust the flatness of the corresponding position of the trolley lower plate to avoid the trolley lower plate sinking in some place due to the excessive weight of the printing nozzle, causing the printing nozzle to contact the printing object and causing damage to the printing nozzle; rotating the second movable nut makes the second movable nut tightly contact the bottom of the connecting column, locking the lower screw rod to lock the height of the trolley lower plate; the first driving assembly is used to quickly drive the printing trolley to move in the left-right direction; the second driving assembly is used to drive the printing trolley to move in the precise left-right reverse direction; when the protrusion on the surface of the printing object touches the anti-collision trigger piece in the anti-collision assembly, the anti-collision assembly can send a signal, and after the signal is transmitted to the platform with the printing object, the platform can stop moving to avoid damage to the printing nozzle caused by the protrusion; the first balancing assembly and the second balancing assembly are used to keep the balance of the anti-collision main beam, and when the anti-collision main beam swings, the first balancing assembly and the second balancing assembly can accelerate the speed of the anti-collision main beam returning to the original position; when the angle of the anti-collision main beam needs to be adjusted, the locking piece is unlocked, and the connecting plate and the rotating plate are unlocked, at this time the angle of the connecting plate is adjusted to make the angle of the anti-collision main beam cover the plate, and after the angle of the connecting plate is adjusted, the locking piece is locked to lock the connecting plate and the rotating plate, at this time the angle adjustment of the anti-collision main beam is completed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the present application;

[0020] Figure 2 is a right view of the present application;

[0021] Figure 3 is Figure 2 is a partial enlarged view of A in

[0022] Figure 4 is a structural schematic diagram of the anti-collision assembly in the present application;

[0023] Figure 5 is a side view of the anti-collision assembly in the present application;

[0024] Figure 6 is Figure 4 is a partial enlarged view of B in

[0025] Figure 7 is a structural schematic diagram of the height adjusting mechanism in the present application;

[0026] Figure 8 is a structural schematic diagram of the water cooling plate and the nozzle driving plate in the present application;

[0027] Figure 9 is a structural schematic diagram of the ink supply module in the present application;

[0028] Figure 10 is a structural schematic diagram of the cleaning assembly in the present application;

[0029] Figure 11 is a sectional view of the cleaning module in the application;

[0030] Figure 12 is a structural schematic diagram of the cleaning module after removing the cover plate in the application;

[0031] Figure 13 is a structural schematic diagram of the base in the application;

[0032] Figure 14 is Figure 10 is a local enlarged view at C in

[0033] In the figure: 1, trolley upper plate, 2, trolley lower plate, 3, height adjusting mechanism, 31, upper screw rod, 311, first movable nut, 312, second movable nut, 32, lower screw rod, 33, connecting column, 4, printing mechanism, 41, ink supply module, 411, connecting bracket, 42, printing nozzle, 43, mounting plate, 44, water-cooled plate, 441, water-cooled connecting bracket, 45, nozzle drive plate, 5, anti-collision assembly, 51, connecting block, 52, swing assembly, 521, anti-collision main beam, 522, anti-collision trigger piece, 53, trigger assembly, 531, swing piece, 532, detection mechanism, 54, first balancing assembly, 55, second balancing assembly, 551, balancing piece, 552, connecting plate, 6, drive assembly, 61, first drive module, 611, slide rail frame, 612, partition plate, 613, first slide rail, 614, first slide block, 62, second drive assembly, 621, drive motor, 622, second slide rail, 623, second slide block, 63, first through hole, 64, first drive cylinder, 65, second drive cylinder, 7, angle adjusting mechanism, 71, rotating plate, 72, adjusting groove, 73, second through hole, 8, cleaning assembly, 81, cleaning bracket, 82, cleaning module, 83, base, 831, cover plate, 84, liquid outlet cavity, 85, air suction cavity, 88, liquid inlet pipe, 9, base, 91, elastic assembly, 911, stand column, 912, slide block, 913, groove, 914, guide hole, 92, limiting structure, 921, limiting column, 922, limiting top block, 923, limiting square block, 93, top block. DETAILED DESCRIPTION

[0034] The technical solutions of the application will be further specifically described below by examples in combination with the drawings.

[0035] Example: One of the printing trolleys of the example, as shown in Figures 1 to 14As shown, including the trolley upper plate 1 and the trolley lower plate 2, four front and rear side-by-side height adjustment assemblies are arranged between the trolley upper plate 1 and the trolley lower plate 2, the height adjustment assembly includes five left and right equidistant height adjustment mechanisms 3, the trolley lower plate 2 is provided with a printing assembly, the printing assembly includes six front and rear side-by-side printing mechanisms 4, the printing mechanism 4 includes an ink supply module 41 and a plurality of printing heads 42, the printing head 42 is arranged at the bottom of the ink supply module 41, the trolley lower plate 2 is also symmetrically provided with a bumper assembly 5 on the front and rear sides, and the trolley upper plate 1 is provided with a driving assembly 6.

[0036] The height adjustment mechanism 3 includes an upper screw 31, a lower screw 32 and a connecting column 33, the top of the upper screw 31 is fixedly connected with the trolley upper plate 1, the bottom of the lower screw 32 is fixedly connected with the trolley lower plate 2, the connecting column 33 is arranged between the upper screw 31 and the lower screw 32, the bottom of the upper screw 31 is threadedly connected with the top of the connecting column 33, the bottom of the connecting column 33 is threadedly connected with the top of the lower screw 32, the outer side of the upper screw 31 is sleeved with a sleeve, the upper screw 31 is provided with a positioning nut, the positioning nut is used for positioning the sleeve, the upper screw 31 is also provided with a first movable nut 311, the first movable nut 311 is located above the connecting column 33, the screw directions of the upper screw 31 and the lower screw 32 are opposite, the middle part of the connecting column 33 is provided with a first through hole 63, the top of the lower screw 32 extends into the first through hole 63, the lower screw 32 is provided with a limiting nut and a second movable nut 312, the limiting nut is located in the first through hole 63, and the second movable nut 312 is located below the connecting column 33.

[0037] The printing mechanism 4 further includes two left and right symmetrically arranged mounting plates 43, the bottom of the mounting plate 43 is fixedly connected with the top of the trolley lower plate 2, the ink supply module 41 is provided with a connecting bracket 411 at the front and rear ends, and the bottom of the connecting bracket 411 is fixedly connected with the mounting plate 43 through fasteners.

[0038] The printing heads 42 of the printing mechanism 4 are linearly arranged in a left-right direction, the printing heads 42 of two adjacent printing mechanisms 4 are staggered, the inner side of the ink supply module 41 is provided with a water cooling plate 44, the water cooling plate 44 is provided with a nozzle driving plate 45 at the corresponding positions of the front and rear sides of the printing head 42, the nozzle driving plate 45 is detachably connected with the water cooling plate 44 through a clamping piece, the nozzle driving plate 45 is electrically connected with the corresponding printing head 42, and the water cooling plate 44 is provided with a water cooling connecting bracket 441 at the left and right ends, and the water cooling connecting bracket 441 is fixedly connected with the mounting plate 43 through fasteners.

[0039] The driving assembly 6 comprises a first driving module 61, the first driving module 61 comprises a slide rail frame 611 arranged above the trolley upper plate 1, a partition plate 612 is arranged below the slide rail frame 611, the bottom surface of the slide rail frame 611 is symmetrically provided with first slide rails 613 in front and back, the first slide rails 613 are arranged left and right, the partition plate 612 is provided with first sliding blocks 614 at the positions corresponding to the first slide rails 613 at the top, the first sliding blocks 614 are connected with the first slide rails 613 on the corresponding side and can slide along the corresponding first slide rails 613, a first driving cylinder 64 is arranged on the left side of the slide rail frame 611, the telescopic end of the first driving cylinder 64 is connected with the partition plate 612 through a first connecting piece, a second driving cylinder 65 is arranged on the right side of the slide rail frame 611, the telescopic end of the second driving cylinder 65 is connected with the partition plate 612 through a second connecting piece, and the partition plate 612 is connected with the trolley upper plate 1 through a second driving module 62.

[0040] The second driving assembly 62 comprises a driving motor 621 and two second slide rails 622 symmetrically arranged in front and back, the second slide rails 622 are arranged left and right, the second slide rails 622 are arranged on the top of the trolley upper plate 1, the second slide rails 622 are provided with second sliding blocks 623 which can slide along the second slide rails 622, the second sliding blocks 623 are fixedly connected with the bottom of the partition plate 612, and the driving motor 621 is used to drive the trolley upper plate 1 to drive the second sliding blocks 623 to move left and right on the second slide rails 622.

[0041] The anti-collision assembly 5 comprises two connecting blocks 51 symmetrically arranged left and right, and a swing assembly 52 is arranged between the two connecting blocks 51, the swing assembly 52 comprises an anti-collision main beam 521, a plurality of anti-collision trigger pieces 522 are arranged on the front and back sides of the anti-collision main beam 521, the anti-collision main beam 521 is rotationally connected with the connecting block 51 on the corresponding side at both ends, the anti-collision main beam 521 is provided with a trigger assembly 53, the trigger assembly 53 comprises a swing piece 531 and a detection mechanism 532, the swing piece 531 is arranged on the left side of the anti-collision main beam 521, and the detection mechanism 532 is arranged on the connecting block 51 on the left side, and the detection part of the swing piece 531 extends into the detection area of the detection mechanism 532.

[0042] The left end of the anti-collision main beam 521 is rotationally connected with the connecting block 51 on the left side through a rotating shaft, the left end of the rotating shaft penetrates through the connecting block 51 on the left side and is rotationally connected with the connecting block 51, the right end of the rotating shaft is fixedly connected with the anti-collision main beam 521, and the left end of the rotating shaft is further provided with a first balance assembly 54, and the right end of the anti-collision main beam 521 is rotationally connected with the connecting block 1 on the right side through a second balance assembly 55.

[0043] The second balance assembly 55 comprises two balance sheets 551 and a connecting plate 552, the two balance sheets 551 are symmetrically arranged at the rear end of the anti-collision main beam 521, the top of the connecting plate 552 is fixedly connected with the bottom of the two balance sheets 551, the connecting plate 552 is rotatably connected with the rear connecting block 51 through the angle adjusting mechanism 7, the angle adjusting mechanism 7 comprises a rotating plate 71 and two adjusting grooves 72 arranged on the connecting plate 552, the connecting plate 552 and the rotating plate 71 are vertically arranged, the second through hole 73 is arranged on the rotating plate 71, the anti-collision main beam 521 passes through the second through hole 73, the connecting plate 552 is located on the right side of the right connecting block 1, the adjusting grooves 72 are arranged in the up-down direction, the adjusting grooves 72 pass through the connecting plate 552 in the left-right direction, the rotating plate 71 is located between the connecting plate 552 and the connecting block 51 and is rotatably connected with the connecting block 51, the adjusting grooves 72 are provided with a locking piece which can slide along the adjusting grooves 72, and the connecting plate 552 is connected with the rotating plate 71 through the locking piece.

[0044] The cleaning assembly 8 is further arranged below the trolley lower plate 2, and comprises a cleaning support 81. The cleaning support 81 is provided with a cleaning module 82 corresponding to the position of the printing nozzle. The cleaning module 82 comprises a base 83 and the base 9. The top surface of the base 83 is provided with a containing groove and a cover plate 831 matched with the containing groove. The cover plate 831 is located in the containing groove and closely adheres to the bottom surface of the containing groove. The bottom surface of the containing groove is provided with a liquid outlet cavity 84 symmetrically arranged on the left and right sides of the front side. The bottom surface of the containing groove is provided with an air suction cavity 85 symmetrically arranged on the left and right sides of the rear side. The cover plate 832 is provided with a strip-shaped liquid outlet hole corresponding to the position of the liquid outlet cavity 84 and arranged in the left-right direction. The strip-shaped liquid outlet hole is in communication with the corresponding liquid outlet cavity 84. The cover plate 831 is provided with a strip-shaped air suction hole corresponding to the position of the air suction cavity 85 and arranged in the left-right direction. The strip-shaped air suction hole is in communication with the corresponding air suction cavity 85. The front side of the base 83 is provided with two liquid inlet pipes 88 corresponding to the two liquid outlet cavities 84 respectively. The base 83 is provided with an air guide groove and two liquid guide grooves. The two liquid guide grooves are corresponding to the two liquid inlet pipes respectively. The liquid inlet pipe is in communication with the corresponding liquid outlet cavity 84 through the corresponding liquid guide groove. The bottom surface of the base 83 is provided with an air suction pipe in communication with the two air suction cavities 85 through the air guide groove. The base 83 is symmetrically provided with a top block 93 on the left and right sides. The top surface of the top block 93 is higher than the top surface of the cover plate 831. The top surface of the top block 93 is symmetrically provided with downward inclined guide inclined surfaces at the front and rear ends.

[0045] The base 9 is located below the base 83, and the top surface of the base 9 is symmetrically provided with elastic components 91 on the left and right sides, the elastic components 91 include stand columns 911, the top of the stand column 911 is provided with a sliding block 912, the top surface of the sliding block 912 is provided with a spring, the bottom surface of the base 83 is provided with a sliding hole matched with the sliding block 912 at the corresponding position, the top surface of the sliding hole is provided with a groove 913 for the spring to extend into, the sliding block 912 is located in the corresponding sliding hole and can slide along the sliding hole, the top of the spring extends into the groove 913 and abuts against the top surface of the groove 913, the top surface of the sliding block 912 is provided with a limiting groove, and the lower part of the spring is located in the limiting groove. The top surface of the base 9 is also provided with a guide hole 914 matched with the air suction pipe, the air suction pipe can slide up and down along the guide hole 914, the base 9 is provided with a cavity, the front side wall of the base 9 is provided with an air suction port, the cavity is in communication with the guide hole 914 and the air suction port respectively, the air suction pipe is located between the two sliding holes, and the guide hole 914 is located between the two stand columns 911. The left and right sides of the cleaning module 82 are also provided with limiting structures 92, the limiting structure 92 includes a limiting column 921 and two limiting blocks 923, the limiting column 921 is arranged outside the base 9, the top of the limiting column 921 is provided with a limiting top block 922, and the two limiting blocks 923 are symmetrically arranged in front of and behind the base. The limiting column 921 extends into the gap between the two limiting blocks on the corresponding side, and the size of the limiting top block 922 is greater than the distance between the two limiting blocks.

[0046] In the scheme, a platform carrying a printing object is arranged below the printing trolley, the platform drives the printing object to move from left to right towards the bottom of the printing trolley to enable the printing nozzle to print the printing object, and the printing trolley can also move in the left-right direction according to the price requirement. When the printing trolley needs to move, the extension end of the first driving cylinder in the first driving module extends while the extension end of the second driving cylinder retracts, the first driving cylinder and the second driving cylinder drive the partition plate to slide along the first sliding rail through the first sliding block, the movement of the partition plate drives the second driving assembly and the printing trolley to move in the left-right direction, and after the first driving module is driven, the extension ends of the first driving cylinder and the second driving cylinder are locked to prevent the partition plate from continuing to move. At this time, the driving motor in the second driving assembly drives the trolley upper plate to slide on the second sliding rail through the second sliding block, and the driving motor drives the trolley upper plate to precisely displace in the left-right direction.

[0047] The trolley lower plate is provided with a plurality of printing nozzles. The quality of the printing nozzles may cause some parts of the trolley lower plate to sink. The sinking of some parts of the trolley lower plate may cause the printing nozzles at the parts to drop, so that the printing nozzles directly contact the printing object and are damaged, and the printing effect is reduced. In order to prevent the printing nozzles from contacting the printing object due to the deformation of some parts of the trolley lower plate, the height adjusting mechanism of the corresponding part is adjusted to forcibly lift the trolley lower plate at the part to a suitable position, so that the flatness of the trolley lower plate is restored to a suitable state. After the trolley lower plate at the part is lifted, the printing nozzles no longer contact the printing object, the printing nozzles are protected, and the printing effect of the printing nozzles installed on the trolley lower plate is improved when the flatness of the trolley lower plate is restored. By rotating the connecting column in the height adjusting mechanism, the distance between the upper screw rod and the lower screw rod can be lengthened / shortened. After the connecting column is rotated, the sinking of the trolley lower plate at the part is changed with the change of the height of the lower screw rod, and the height of the printing nozzles is changed synchronously with the change of the height of the trolley lower plate. After adjustment is completed, the first movable nut is rotated to tightly attach the first movable nut to the top of the connecting column, the first movable nut is locked with the top of the connecting column, and then the second movable nut is rotated to tightly attach the second movable nut to the bottom of the connecting column, so that the lower screw rod is locked. The height of the trolley lower plate at the part is locked, and the sinking of the trolley lower plate at the part is solved.

[0048] During the printing process, the surface of the printing object is often convex. When the convexity touches the anti-collision trigger piece, the convexity drives the anti-collision trigger piece to swing, the anti-collision trigger piece drives the anti-collision main beam to swing, and the anti-collision main beam drives the swing piece to swing. The detection part of the swing piece will be out of the detection area of the detection mechanism when swinging. When the detection mechanism detects that the detection part of the swing piece is not located in the detection area, a signal can be sent to the platform carrying the printing object. The platform stops moving after receiving the signal, avoiding damage to the printing nozzles caused by the convexity. The first balance assembly and the second balance assembly are used to keep the balance of the anti-collision main beam. When the anti-collision main beam swings, the first balance assembly and the second balance assembly can accelerate the speed of returning of the anti-collision main beam.

[0049] When the angle of the anti-collision main beam needs to be adjusted, the locking piece is unlocked, and the connection plate and the rotating plate are unlocked. At this time, the angle of the connection plate is adjusted to cover the angle of the anti-collision main beam. After the angle of the connection plate is adjusted, the locking piece is locked, and the connection plate and the rotating plate are locked. At this time, the angle adjustment of the anti-collision main beam is completed.

[0050] After the printing head works for a long time, the printing head will be contaminated by ink or dirt, so that the printing head cannot work smoothly. In order to ensure that the printing head can work smoothly, the printing head needs to be cleaned. The air suction port is connected with the air suction mechanism, and the two liquid inlet pipes are connected with the cleaning liquid output mechanism. When the printer head needs to be cleaned, the printing trolley of the printer is moved above the cleaning device, the two strip-shaped liquid outlets are aligned with the printer head on the bottom surface of the printing trolley, and the cleaning liquid output mechanism outputs the cleaning liquid. The cleaning liquid passes through the liquid inlet pipe, the liquid guide groove and the liquid outlet cavity in turn and is sprayed from the strip-shaped liquid outlet hole to the printer head, so as to clean the printer head. At the same time, the air suction mechanism sucks air to generate negative pressure in the air suction cavity, and the strip-shaped air suction hole sucks away the dirt cleaned from the printer head, so as to automatically clean the printer head, saving time and effort. The strip-shaped liquid outlet hole and the strip-shaped air suction hole are inclined from left to right, which is convenient for cleaning the dead angle of the printer head which is not easy to clean. The cover plate and the containing groove are detachably connected.

[0051] When the printing trolley is moved above the cleaning assembly, the bottom protruding part of the printing trolley is in contact with the top surface of the top block, the base is pressed downward, the base is moved downward by a certain distance, the distance between the strip-shaped liquid outlet hole and the printer head is kept at the most appropriate distance, the sprayed cleaning liquid is convenient for cleaning the printer head, and the strip-shaped air suction hole is convenient for sucking away the dirt cleaned. After cleaning, the printing trolley is removed, and the base is moved upward and reset under the action of the spring. In order to prevent the spring from rebounding too much and ejecting the base, the base will drive the two side limiting blocks to rise until they abut against the limiting top block at the top of the limiting column during the resetting upward movement of the base. The top block prevents the base from being separated, the guide block makes the printing trolley not in contact with the cover plate, the guide slope is convenient for the printing trolley to move to the top surface of the guide block.

Claims

1. A print carriage, characterized by: The trolley upper plate (1) and the trolley lower plate (2) are provided with a plurality of front and rear side-by-side height adjusting assemblies, the height adjusting assembly comprises a plurality of left and right equidistant height adjusting mechanisms (3), the height adjusting mechanism (3) is used for adjusting the height of the corresponding position on the trolley lower plate (2), the trolley lower plate (2) is provided with a printing assembly, the printing assembly comprises a plurality of front and rear side-by-side printing mechanisms (4), the printing mechanism (4) comprises an ink supply module (41) and a plurality of printing heads (42), the printing head (42) is arranged at the bottom of the ink supply module (41), the trolley lower plate (2) is also provided with a symmetrical anti-collision assembly (5) on the front and rear sides, the trolley upper plate (1) is provided with a driving assembly (6), the driving assembly (6) is used for driving the printing trolley to move left and right, the driving assembly (6) comprises a first driving module (61), the first driving module (61) comprises a slide rail frame (611) arranged above the trolley upper plate (1), a partition plate (612) is arranged below the slide rail frame (611), the bottom surface of the slide rail frame (611) is provided with a first slide rail (613) symmetrically arranged on the front and rear sides, the first slide rail (613) is arranged left and right, the partition plate (612) is provided with a first sliding block (614) on the top corresponding to the position of the first slide rail (613), the first sliding block (614) is connected with the first slide rail (613) on the corresponding side and can slide along the corresponding first slide rail (613), a first driving cylinder (64) is arranged on the left side of the slide rail frame (611), the telescopic end of the first driving cylinder (64) is connected with the partition plate (612) through a first connecting piece, a second driving cylinder (65) is arranged on the right side of the slide rail frame (611), the telescopic end of the second driving cylinder (65) is connected with the partition plate (612) through a second connecting piece, the partition plate (612) and the trolley upper plate (1) are connected through a second driving module (62), the second driving module (62) is used for driving the printing trolley to move left and right, the height adjusting mechanism (3) comprises an upper screw rod (31), a lower screw rod (32) and a connecting column (33), the top of the upper screw rod (31) is fixedly connected with the trolley upper plate (1), the bottom of the lower screw rod (32) is fixedly connected with the trolley lower plate (2), the connecting column (33) is arranged between the upper screw rod (31) and the lower screw rod (32), the bottom of the upper screw rod (31) is threadedly connected with the top of the connecting column (33), the bottom of the connecting column (33) is threadedly connected with the top of the lower screw rod (32), a sleeve is sleeved on the outer side of the upper screw rod (31), a positioning nut is arranged on the upper screw rod (31), the positioning nut is used for positioning the sleeve, a first movable nut (311) is further arranged on the upper screw rod (31), the first movable nut (311) is located above the connecting column (33), the screw threads of the upper screw rod (31) and the lower screw rod (32) are opposite, a first through hole (63) is arranged in the middle of the connecting column (33),The lower screw rod (32) top extends into the first through hole (63), the lower screw rod (32) is equipped with limiting nut and second movable nut (312), the limiting nut (312) is located in the first through hole (63), the second movable nut is located below the connecting column (33), the printing trolley further includes two left and right symmetrically arranged mounting plates (43), the mounting plate (43) bottom is fixedly connected with the top of the trolley lower plate (2), the ink supply module (41) left and right ends are provided with connecting brackets (411), the connecting bracket (411) bottom is fixedly connected with the mounting plate (43) through the fastener, the printing head (42) of the printing mechanism (4) left and right direction is linearly arranged, the printing head (42) of the adjacent two printing mechanisms (4) is staggered, the inside of the ink supply module (41) is provided with a water cooling plate (44), the water cooling plate (44) front and back sides are provided with nozzle drive plates (45) corresponding to the positions of the printing head (42), the nozzle drive plate (45) is detachably connected with the water cooling plate (44) through the clamping piece, the nozzle drive plate (45) is electrically connected with the corresponding printing head (42), the water cooling plate (44) left and right ends are provided with water cooling connecting brackets (441), the water cooling connecting bracket (441) is fixedly connected with the mounting plate (43) through the fastener, the second drive module (62) includes a drive motor (621) and two front and back symmetrically arranged second slide rails (622), the second slide rail (622) left and right direction is arranged, the second slide rail (622) is arranged on the top of the trolley upper plate (1), the second slide rail (622) is provided with a second sliding block (623) which can slide along the second slide rail (622), the second sliding block (623) is fixedly connected with the bottom of the partition plate (612), the drive motor (621) is used for driving the trolley upper plate (1) to drive the second sliding block (623) to move left and right on the second slide rail (622).

2. The print cart of claim 1, wherein: The anti-collision assembly (5) comprises two left and right symmetrical connecting blocks (51), the two connecting blocks (51) are provided with a swing assembly (52) therebetween, the swing assembly (52) comprises an anti-collision main beam (521), the anti-collision main beam (521) is provided with a plurality of anti-collision trigger pieces (522) on the front and back sides, the anti-collision main beam (521) is rotationally connected with the connecting block (51) on the corresponding side at both ends, the anti-collision assembly (5) further comprises a trigger assembly (53), the trigger assembly (53) comprises a swing piece (531) and a detection mechanism (532), the swing piece (531) is arranged on the left side of the anti-collision main beam (521), the detection mechanism (532) is arranged on the left connecting block (51), the detection part of the swing piece (531) extends into the detection area of the detection mechanism (532), and the detection mechanism (532) is used for detecting whether the detection part is located in the detection area.

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