阅读说明：本技术 一种具备预处理功能的纸箱印刷设备 (Carton lithography apparatus that possesses preprocessing function ) 是由 毛海玉 于 2021-07-30 设计创作，主要内容包括：本发明公开了纸箱印刷技术领域的一种具备预处理功能的纸箱印刷设备,包括两个安装板,两个所述安装板右侧上端共同固定连接有投料筒；本发明在纸板清理前,利用夹持架使纸板保持平整,保证毛刷能将整个纸板的表面进行刷动清理；随后扫动板与加热板将纸板表面的灰尘进行清理,并且将变形的纸板进行熨平,有利于使纸板在印刷前保持纸板表面的清洁,以及纸板的平整度,从而保证印刷的品质；在清理的过程中,凸轮会作用扫动板与加热板,毛刷会对纸板表面附着的灰尘进行往复刷动清理,有利于将那些附着较久的灰尘进行往复刷动,使灰尘能完全脱离纸板表面；加热板往复移动有利于使纸板表面能均匀受热,避免纸板局部受热不均导致纸板形变。(The invention discloses carton printing equipment with a preprocessing function in the technical field of carton printing, which comprises two mounting plates, wherein the upper ends of the right sides of the two mounting plates are fixedly connected with a feeding barrel together; before the paper board is cleaned, the paper board is kept flat by using the clamping frame, and the surface of the whole paper board can be cleaned by brushing through the hairbrush; then the sweeping plate and the heating plate clean dust on the surface of the paperboard and iron the deformed paperboard, which is beneficial to keeping the surface of the paperboard clean and the flatness of the paperboard before printing, thereby ensuring the printing quality; in the cleaning process, the cam acts on the sweeping plate and the heating plate, the brush can brush and clean dust attached to the surface of the paperboard in a reciprocating manner, and the dust attached to the surface of the paperboard in a longer time can be brushed in a reciprocating manner, so that the dust can be completely separated from the surface of the paperboard; the reciprocating motion of the heating plate is beneficial to enabling the surface of the paperboard to be uniformly heated, and the phenomenon that the paperboard is deformed due to uneven local heating of the paperboard is avoided.)

1. The utility model provides a carton lithography apparatus that possesses preprocessing function, includes two mounting panels (1) and printing device, its characterized in that: printing device fixed mounting is two the upper end on mounting panel (1) right side, two the common fixedly connected with in mounting panel (1) right side upper end throws feed cylinder (2), two be connected with conveyer belt (3) through the transfer roller transmission between mounting panel (1), promotion strip (4) that conveyer belt (3) fixed surface is connected with the equidistance and arranges, two common fixedly connected with dust absorption pipe (5) between mounting panel (1), dust absorption pipe (5) are located the top of conveyer belt (3), the bottom of throwing feed cylinder (2) is equipped with throws the material mechanism, throw the material mechanism and can make cardboard intermittent type nature unloading, two be equipped with the mechanism of sweeping the dust on cardboard surface between mounting panel (1), sweep the below position of mechanism in dust absorption pipe (5), two mounting panels (1) correspond sweep mechanism left side and are equipped with the mechanism of flattening that is used for flattening the cardboard, a push-pull mechanism is arranged between the two mounting plates (1) corresponding to the right side of the sweeping mechanism and used for pushing the sweeping mechanism to move in a reciprocating mode, an ironing mechanism used for ironing a deformed paperboard is arranged between the two mounting plates (1), the ironing mechanism is located on the right side of the push-pull mechanism, and the push-pull mechanism can pull the ironing mechanism to move in a reciprocating mode.

2. The carton printing apparatus with preprocessing function as claimed in claim 1, wherein: the sweeping mechanism comprises two first grooves (6), the two first grooves (6) are arranged on the inner walls of the two mounting plates (1), a sweeping plate (8) is connected in the two first grooves (6) through a first sliding rod (7) in a sliding mode, the right side surface of the first sliding rod (7) is elastically connected with the inner wall of the first groove (6) through a first spring (9), the sweeping plate (8) is obliquely arranged, and the bottom end of the sweeping plate (8) extends to the lower position of the dust suction pipe (5), the bottom of the sweeping plate (8) is fixedly connected with a brush (10), a second groove (11) is arranged between the two mounting plates (1) corresponding to the middle position of the sweeping plate (8), a second sliding rod (13) is elastically connected in the second groove (11) in a sliding manner through a second spring (12).

3. The carton printing apparatus with preprocessing function as claimed in claim 2, wherein: the push-pull mechanism comprises two kidney-shaped grooves (14), the two kidney-shaped grooves (14) are longitudinally arranged on the inner sides of the two mounting plates (1), the bottoms of the kidney-shaped grooves (14) are positioned between the conveyor belts (3), the inner walls of the kidney-shaped grooves (14) are rotationally connected with a first synchronizing wheel (15) and a second synchronizing wheel (16), the first synchronizing wheel (15) is positioned between the conveyor belts (3), the first synchronizing wheel (15) is attached to the inner side surfaces of the conveyor belts (3), the second synchronizing wheel (16) is positioned above the conveyor belts (3), the surfaces of the first synchronizing wheel (15) and the second synchronizing wheel (16) are jointly connected with a synchronous belt (17) in a transmission manner, one end, far away from the kidney-shaped grooves (14), of the second synchronizing wheel (16) is fixedly connected with a cam (18), and the cam (18) is positioned on the right side of the sweeping plate (8), and the cam (18) can act on the first sliding rod (7), and a pulling rod (19) is rotatably connected to one end surface of the cam (18) far away from the kidney-shaped groove 14.

4. The carton printing apparatus with preprocessing function as claimed in claim 3, wherein: ironing machine constructs hot plate (20) including L shape, hot plate (20) side-to-side sliding connection is two between mounting panel (1), and hot plate (20) are located the top position of conveyer belt (3), pulling rod (19) and hot plate (20) upper end are articulated.

5. The carton printing apparatus with preprocessing function as claimed in claim 1, wherein: the feeding mechanism comprises two first chutes (21) and two second chutes (22), the two first chutes (21) are respectively arranged at the left side and the right side of the feeding barrel (2), the two second chutes (22) are respectively arranged at the front side and the rear side of the inner wall of the feeding barrel (2), the left end and the right end of each second chute (22) penetrate through the inner wall of the feeding barrel (2) and are communicated with the two first chutes (21), the tops of the inner walls of the two first chutes (21) are elastically and slidably connected with trigger plates (24) through third springs (23), the lower ends of the trigger plates (24) at the left side extend to the middle position at the left side of the conveyor belt (3), the pushing strips (4) can act on the trigger plates (24) at the left side, the lower ends of the trigger plates (24) at the right side extend to the position above the conveyor belt (3), and the front ends and the rear ends between the two trigger plates (24) are fixedly connected through connecting plates (25), the two connecting plates (25) slide in the second sliding grooves (22); the feeding barrel is characterized in that the inner walls of the left side and the right side of the feeding barrel (2) are respectively provided with a first through groove (26) and a second through groove (27), the first through groove (26) is positioned below the second through groove (27), the distance between the first through groove (26) and the second through groove (27) is the same as the thickness of a single paperboard, a blocking block (29) is elastically and slidably connected in the first through groove (26) through a fourth spring (28), the upper end of the left side of the blocking block (29) is an inclined plane, a lifting block (31) is elastically and slidably connected in the second through groove (27) through a fifth spring (30), the left side and the right side of the lifting block (31) are both inclined planes, the lower end of the right inclined plane of the lifting block (31) is positioned at a gap between the first paperboard and the second paperboard, a first trigger groove (32) and a second trigger groove (33) are formed in the surface of the trigger plate (24), the first trigger groove (32) is located below the second trigger groove (33), the first trigger groove (32) is located below the blocking block (29), the upper end of the first trigger groove (32) is an inclined surface, the second trigger groove (33) is located at the position of the lifting block (31), the lifting block (31) is located in the second trigger groove (33), the lower end of the second trigger groove (33) is an inclined surface, and the bottom of the trigger plate (24) on the right side is an inclined surface.

6. The carton printing apparatus with preprocessing function as claimed in claim 2, wherein: the bottom of the sweeping plate (8) is fixedly connected with a wavy shifting block (34).

7. The carton printing apparatus with preprocessing function as claimed in claim 2, wherein: mechanism flattens includes holding frame (35), holding frame (35) rotate to be connected two between mounting panel (1), holding frame (35) are located sweep the left side position of board (8), the intermediate part of holding frame (35) is the V-arrangement, the pivot point between holding frame (35) and mounting panel (1) is located the intermediate position of V-arrangement, the both ends of holding frame (35) all are towards conveyer belt (3) position, and holding frame (35) left end is greater than cardboard thickness apart from conveyer belt (3) surface, holding frame (35) right-hand member is less than cardboard thickness apart from conveyer belt (3) surface, holding frame (35) both ends are all rotated and are connected with rotor roll (36).

8. The carton printing apparatus with preprocessing function as claimed in claim 2, wherein: two it is connected with adsorption roller (37) to rotate between mounting panel (1), be located the right side position of sweeping board (8), and adsorption roller (37) are located the top position of conveyer belt (3), the surface of adsorption roller (37) has moisture, two correspond the L shape of adsorption roller (37) left side fixedly connected with between mounting panel (1) and accept board (38), the tip of accepting board (38) and the surperficial laminating of adsorption roller (37).

9. The carton printing apparatus with preprocessing function as claimed in claim 1, wherein: the upper end of the pushing strip (4) is telescopic, the right side of the upper end of the pushing strip (4) is arc-shaped, and the height of the completely compressed pushing strip (4) is smaller than the thickness of a single paperboard.

Technical Field

The invention relates to the technical field of carton printing, in particular to carton printing equipment with a pretreatment function.

Background

With the rise of internet sales, the sales of various carton packaging products increases the demand for carton paperboards, and the use of carton paperboards for propaganda is also common. The requirement on paperboard printing is higher and higher after the development of the printing industry of the paper box paperboard is driven, and the paperboard is prevented from being damaged as much as possible in the conveying process so as to avoid influencing the printing effect of the paperboard.

The existing paper boxes are generally piled up together when being stored, when the paper boxes need to be printed, the paper boards are transported out for printing, when the paper boards are piled up, a large amount of dust can be deposited on the surface of an upper layer paper board, in the moving and transferring process, the dust can fly, the dust can inevitably fall on the surfaces of the rest paper boards, when the paper boxes are printed, the pattern printing quality is low due to the dust, patterns can not be attached to the surfaces of the paper boards due to the fact that the dust is more, the selling and the advertising effects of the paper boxes are affected, the paper boards can deform due to the fact that the paper boards are piled up too much and the time is longer, and the printed patterns deform.

Based on the above, the invention designs a carton printing device with a preprocessing function to solve the above problems.

Disclosure of Invention

The invention aims to provide a carton printing device with a preprocessing function, and aims to solve the problems that the existing cartons are generally piled together when being stored, and the paperboards are transported out for printing when needing to be printed, when the paperboards are piled, a large amount of dust is deposited on the surface of an upper layer of paperboard, the dust flies during the moving and transferring process, so that the surface of the rest paperboards can inevitably fall dust, when in printing, the pattern printing quality is low due to the dust, when more dust exists, patterns can be possibly adhered to the surface of the paperboard, the selling and propaganda effects of the cartons are influenced, and when the paperboards are piled too much and the time is longer, the paperboards are deformed, so that the printed patterns are deformed.

In order to achieve the purpose, the invention provides the following technical scheme: a carton printing device with a preprocessing function comprises two mounting plates and a printing device, wherein the printing device is fixedly arranged at the upper ends of the right sides of the two mounting plates, the upper ends of the right sides of the two mounting plates are fixedly connected with a feeding cylinder together, a conveying belt is connected between the two mounting plates through transmission of a conveying roller, the surface of the conveying belt is fixedly connected with pushing strips which are arranged at equal intervals, a dust suction pipe is fixedly connected between the two mounting plates together, the dust suction pipe is positioned above the conveying belt, a feeding mechanism is arranged at the bottom of the feeding cylinder, the feeding mechanism can enable a paperboard to be fed intermittently, a sweeping mechanism for sweeping dust on the surface of the paperboard is arranged between the two mounting plates, the sweeping mechanism is positioned below the dust suction pipe, and flattening mechanisms for flattening the paperboard are arranged on the left sides of the two mounting plates corresponding to the sweeping mechanisms, a push-pull mechanism is arranged between the two mounting plates corresponding to the right side of the sweeping mechanism and used for pushing the sweeping mechanism to move in a reciprocating manner, an ironing mechanism used for ironing a deformed paperboard is arranged between the two mounting plates and located on the right side of the push-pull mechanism, and the push-pull mechanism can pull the ironing mechanism to move in a reciprocating manner; the printing device is fixedly arranged at the upper ends of the right sides of the two mounting plates.

As a further aspect of the invention, the sweeping mechanism comprises two first grooves, the two first grooves are formed in the inner walls of the two mounting plates, a sweeping plate is connected to the two first grooves through a first sliding rod in a sliding manner, the right side surface of the first sliding rod is elastically connected to the inner wall of the first groove through a first spring, the sweeping plate is arranged in an inclined manner, the bottom end of the sweeping plate extends to the position below the dust collection pipe, a brush is fixedly connected to the bottom of the sweeping plate, a second groove is formed between the two mounting plates corresponding to the middle position of the sweeping plate, and a second sliding rod is elastically connected to the second groove through a second spring in a sliding manner.

As a further scheme of the invention, the push-pull mechanism comprises two kidney-shaped grooves, the two kidney-shaped grooves are longitudinally arranged on the inner sides of the two mounting plates, the bottom of the kidney-shaped groove is positioned between the conveyor belts, the inner wall of the kidney-shaped groove is rotationally connected with a first synchronizing wheel and a second synchronizing wheel, the first synchronizing wheel is positioned between the conveyor belts and is attached to the inner side surfaces of the conveyor belts, the second synchronizing wheel is positioned above the conveyor belts, the surfaces of the first synchronizing wheel and the second synchronizing wheel are jointly connected with a synchronous belt in a transmission manner, one end of the second synchronizing wheel, far away from the kidney-shaped groove, is fixedly connected with a cam, the cam is positioned on the right side of the sweeping plate and can act on a first sliding rod, and one end surface of the cam, far away from the kidney-shaped groove, is rotationally connected with a pulling rod.

As a further scheme of the invention, the ironing mechanism comprises an L-shaped heating plate which is connected between the two mounting plates in a left-right sliding mode, the heating plate is located above the conveyor belt, and the pulling rod is hinged to the upper end of the heating plate.

As a further scheme of the invention, the feeding mechanism comprises two first chutes and two second chutes, the two first chutes are respectively arranged at the left side and the right side of the feeding cylinder, the two second chutes are respectively arranged at the front side and the rear side of the inner wall of the feeding cylinder, the left end and the right end of each of the two second chutes penetrate through the inner wall of the feeding cylinder and are communicated with the two first chutes, the tops of the inner walls of the two first chutes are elastically and slidably connected with trigger plates through third springs, the lower end of the trigger plate at the left side extends to the middle position at the left side of the conveyor belt, the pushing bar can act on the trigger plate at the left side, the lower end of the trigger plate at the right side extends to the position above the conveyor belt, the front end and the rear end between the two trigger plates are fixedly connected through connecting plates, and the two connecting plates slide in the second chutes; the feeding device is characterized in that the inner walls of the left side and the right side of the feeding barrel are respectively provided with a first through groove and a second through groove, the first through groove is positioned below the second through groove, the distance between the first through groove and the second through groove is the same as the thickness of a single paperboard, a stop block is elastically and slidably connected in the first through groove through a fourth spring, the upper end of the left side of the stop block is an inclined surface, a lifting block is elastically and slidably connected in the second through groove through a fifth spring, the left side and the right side of the lifting block are inclined surfaces, the lower end of the inclined surface of the right side of the lifting block is positioned in a gap between a first paperboard and a second paperboard, a first trigger groove and a second trigger groove are formed in the surface of the trigger plate, the first trigger groove is positioned below the second trigger groove, the first trigger groove is positioned below the stop block, the upper end of the first trigger groove is an inclined surface, and the second trigger groove is positioned at the lifting block position, and the lifting block is positioned in a second trigger groove, the lower end of the second trigger groove is an inclined plane, and the bottom of the trigger plate on the right side is an inclined plane.

As a further scheme of the invention, the bottom of the sweeping plate is fixedly connected with a wave-shaped poking block.

As a further scheme of the invention, the flattening mechanism comprises a clamping frame, the clamping frame is rotatably connected between the two mounting plates, the clamping frame is located at the left side position of the sweeping plate, the middle part of the clamping frame is in a V shape, a rotating point between the clamping frame and the mounting plates is located at the middle position of the V shape, two ends of the clamping frame face the conveyor belt position, the distance from the left end of the clamping frame to the surface of the conveyor belt is greater than the thickness of the paper board, the distance from the right end of the clamping frame to the surface of the conveyor belt is less than the thickness of the paper board, and two ends of the clamping frame are rotatably connected with rotating rollers.

In a further aspect of the present invention, an adsorption roller is rotatably connected between the two mounting plates, the adsorption roller is positioned at a right side position of the sweep plate and positioned above the conveyor belt, moisture is applied to the surface of the adsorption roller, an L-shaped receiving plate is fixedly connected between the two mounting plates corresponding to a left side of the adsorption roller, and an end of the receiving plate is attached to the surface of the adsorption roller.

As a further scheme of the invention, the upper end of the push strip is telescopic, the right side of the upper end of the push strip is arc-shaped, and the height of the push strip after being completely compressed is smaller than the thickness of a single paperboard.

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

1. before the paperboard is cleaned, the clamping frame is utilized to keep the paperboard flat, so that the brush can be used for brushing and cleaning the surface of the whole paperboard, and the problem that the brush cannot completely clean the deformed surface of the paperboard to influence subsequent printing during cleaning is avoided; then, the sweeping plate and the heating plate are used for cleaning dust on the surface of the paperboard and ironing the deformed paperboard, so that the surface of the paperboard is kept clean before printing and the flatness of the paperboard is kept, and the printing quality is guaranteed; in the cleaning process, the cam is arranged and can act on the sweeping plate and the heating plate, the brush can brush and clean dust attached to the surface of the paperboard in a reciprocating manner, the dust attached for a long time can be brushed in a reciprocating manner, the dust can be completely separated from the surface of the paperboard, and the problem that the dust attached for a long time cannot be cleaned by the brush to influence the quality of subsequent printing is avoided; the reciprocating motion of the heating plate is beneficial to enabling the surface of the paperboard to be uniformly heated, and the phenomenon that the paperboard is deformed due to uneven local heating of the paperboard is avoided.

2. According to the invention, the pushing strips are driven by the conveyor belt to rotate together, the pushing strips can intermittently push the trigger plate along with the conveyor belt, a single paperboard can intermittently fall onto the surface of the conveyor belt, single intermittent blanking is favorable for ensuring better printing, the phenomenon of missing printing caused by the falling of multiple paperboards during blanking is avoided, the blanking process does not need manual participation, the manual workload is reduced, and the working efficiency is improved.

3. In the process that the sweeping plate cleans the surface of the paperboard, when the sweeping plate finishes cleaning a single paperboard, the pushing strip can move to the position below the sweeping plate along with the paperboard, then the top of the pushing strip can be contacted with the shifting block, the sweeping plate can shake under the action of the pushing strip and the shifting block, dust on the surface of the sweeping plate can be shaken, the dust collecting pipe can suck the shaken dust, the dust accumulated on the surface of the sweeping plate can be shaken, and the dust accumulated on the surface of the sweeping plate can be prevented from being incapable of being cleaned.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic view of the present invention, generally broken away;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the structure of FIG. 2 at B;

FIG. 5 is a schematic view of the structure of the charging barrel of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 5 at C;

FIG. 7 is a schematic structural view of the connection relationship between the trigger plate and the connecting plate according to the present invention;

FIG. 8 is a schematic structural diagram of the connection relationship between the trigger plate and the connecting plate with the charging barrel (the charging barrel is cut away) in the present invention;

FIG. 9 is a schematic view of the structure of FIG. 8 at D;

FIG. 10 is a schematic view of the position relationship of the sweeping mechanism, the pushing and pulling mechanism and the ironing mechanism (hidden front mounting plate) in the present invention;

fig. 11 is a schematic structural diagram at E in fig. 10.

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a mounting plate 1, a feeding barrel 2, a conveyor belt 3, a pushing strip 4, a dust collection pipe 5, a first groove 6, a first sliding rod 7, a sweeping plate 8, a first spring 9, a brush 10, a second groove 11, a second spring 12, a second sliding rod 13, a kidney-shaped groove 14, a first synchronizing wheel 15, a second synchronizing wheel 16, a synchronizing belt 17, a cam 18, a pulling rod 19, a heating plate 20, a first sliding groove 21, a second sliding groove 22, a third spring 23, a trigger plate 24, a connecting plate 25, a first through groove 26, a second through groove 27, a fourth spring 28, a stop block 29, a fifth spring 30, a lifting block 31, a first trigger groove 32, a second trigger groove 33, a shifting block 34, a clamping frame 35, a rotating roller 36, an adsorption roller 37 and a bearing plate 38.

Detailed Description

Referring to fig. 1-11, the present invention provides a technical solution: a carton printing device with a pretreatment function comprises two mounting plates 1 and a printing device, wherein the printing device is fixedly arranged at the upper ends of the right sides of the two mounting plates 1, the upper ends of the right sides of the two mounting plates 1 are fixedly connected with a feeding cylinder 2 together, a conveying belt 3 is connected between the two mounting plates 1 through a conveying roller in a transmission manner, pushing strips 4 which are arranged at equal intervals are fixedly connected to the surface of the conveying belt 3, a dust suction pipe 5 is fixedly connected between the two mounting plates 1 together, the dust suction pipe 5 is positioned above the conveying belt 3, a feeding mechanism is arranged at the bottom of the feeding cylinder 2 and can enable a paperboard to be fed intermittently, a sweeping mechanism for sweeping dust on the surface of the paperboard is arranged between the two mounting plates 1, the sweeping mechanism is positioned below the dust suction pipe 5, a flattening mechanism for flattening the paperboard is arranged at the left side of the sweeping mechanism corresponding to the two mounting plates 1, and a push-pull mechanism is arranged at the right side of the sweeping mechanism corresponding to the two mounting plates 1, the push-pull mechanism is used for pushing the sweeping mechanism to move in a reciprocating mode, an ironing mechanism used for ironing the deformed paper boards is arranged between the two mounting plates 1, the ironing mechanism is located on the right side of the push-pull mechanism, and the push-pull mechanism can pull the ironing mechanism to move in a reciprocating mode; the printing device is fixedly arranged at the upper ends of the right sides of the two mounting plates 1;

the sweeping mechanism comprises two first grooves 6, the two first grooves 6 are formed in the inner walls of the two mounting plates 1, a sweeping plate 8 is connected to the two first grooves 6 through a first sliding rod 7 in a sliding mode, the right side surface of the first sliding rod 7 is elastically connected with the inner wall of the first groove 6 through a first spring 9, the sweeping plate 8 is arranged in an inclined mode, the bottom end of the sweeping plate 8 extends to the position below the dust suction pipe 5, a brush 10 is fixedly connected to the bottom of the sweeping plate 8, a second groove 11 is formed between the two mounting plates 1 corresponding to the middle position of the sweeping plate 8, and a second sliding rod 13 is connected to the second groove 11 through a second spring 12 in an elastic sliding mode;

the push-pull mechanism comprises two kidney-shaped grooves 14, the two kidney-shaped grooves 14 are longitudinally arranged on the inner sides of the two mounting plates 1, the bottoms of the kidney-shaped grooves 14 are positioned between the conveyor belts 3, the inner walls of the kidney-shaped grooves 14 are rotatably connected with a first synchronizing wheel 15 and a second synchronizing wheel 16, the first synchronizing wheel 15 is positioned between the conveyor belts 3, the first synchronizing wheel 15 is attached to the inner side surface of the conveyor belts 3, the second synchronizing wheel 16 is positioned above the conveyor belts 3, the surfaces of the first synchronizing wheel 15 and the second synchronizing wheel 16 are jointly connected with a synchronous belt 17 in a transmission manner, one end, far away from the kidney-shaped grooves 14, of the second synchronizing wheel 16 is fixedly connected with a cam 18, the cam 18 is positioned on the right side of the sweeping plate 8, the cam 18 can act on the first sliding rod 7, and one end, far away from the kidney-shaped grooves 14, of the cam 18 is rotatably connected with a pulling rod 19;

the ironing mechanism comprises an L-shaped heating plate 20, the heating plate 20 is connected between the two mounting plates 1 in a left-right sliding mode, the heating plate 20 is located above the conveyor belt 3, and the pulling rod 19 is hinged to the upper end of the heating plate 20;

the feeding mechanism comprises two first chutes 21 and two second chutes 22, the two first chutes 21 are respectively arranged on the left side and the right side of the feeding cylinder 2, the two second chutes 22 are respectively arranged on the front side and the rear side of the inner wall of the feeding cylinder 2, the left ends and the right ends of the two second chutes 22 are communicated with the two first chutes 21 through penetrating through the inner wall of the feeding cylinder 2, the tops of the inner walls of the two first chutes 21 are elastically and slidably connected with trigger plates 24 through third springs 23, the lower end of the left trigger plate 24 extends to the middle position on the left side of the conveyor belt 3, the pushing strip 4 can act on the left trigger plate 24, the lower end of the right trigger plate 24 extends to the position above the conveyor belt 3, the front end and the rear end between the two trigger plates 24 are fixedly connected through connecting plates 25, and the two connecting plates 25 slide in the second chutes 22; the inner walls of the left side and the right side of the charging barrel 2 are respectively provided with a first through groove 26 and a second through groove 27, the first through groove 26 is positioned below the second through groove 27, the distance between the first through groove 26 and the second through groove 27 is the same as the thickness of a single paperboard, a stop block 29 is elastically and slidably connected in the first through groove 26 through a fourth spring 28, the upper end of the left side of the stop block 29 is an inclined plane, a lifting block 31 is elastically and slidably connected in the second through groove 27 through a fifth spring 30, the left side and the right side of the lifting block 31 are inclined planes, the lower end of the right inclined plane of the lifting block 31 is positioned at a gap between the first paperboard and the second paperboard, the surface of the trigger plate 24 is provided with a first trigger groove 32 and a second trigger groove 33, the first trigger groove 32 is positioned below the stop block 29, the upper end of the first trigger groove 32 is an inclined plane, the second trigger groove 33 is positioned at the lifting block 31, the lifting block 31 is positioned in the second trigger groove 33, the lower end of the second trigger groove 33 is an inclined plane, and the bottom of the right trigger plate 24 is an inclined plane;

the flattening mechanism comprises a clamping frame 35, the clamping frame 35 is rotatably connected between the two mounting plates 1, the clamping frame 35 is located at the left side position of the sweeping plate 8, the middle part of the clamping frame 35 is V-shaped, a rotating point between the clamping frame 35 and the mounting plates 1 is located at the middle position of the V-shaped, two ends of the clamping frame 35 face the position of the conveyor belt 3, the distance from the left end of the clamping frame 35 to the surface of the conveyor belt 3 is larger than the thickness of a paper board, the distance from the right end of the clamping frame 35 to the surface of the conveyor belt 3 is smaller than the thickness of the paper board, and two ends of the clamping frame 35 are rotatably connected with rotating rollers 36;

according to the invention, before printing, stored paper boards are conveyed out and put into the feeding barrel 2, the paper boards fall on the upper end of the stop block 29, then the printing equipment is started, the dust suction pipe 5 and the conveyor belt 3 start to run, the conveyor belt 3 runs to drive the push strip 4 to move together, when the push strip 4 moves to the left side of the conveyor belt 3, the push strip 4 pushes the trigger plate 24 upwards, the trigger plate 24 moves upwards under the action of the push strip 4, the lifting block 31 moves towards the inside of the feeding barrel 2 under the action of the second trigger groove 33, the lifting block 31 lifts the paper boards above the first paper board to avoid that friction between the paper boards is large due to excessive paper boards in the feeding barrel 2, a plurality of paper boards are pushed out by the push strip 4 to influence normal printing, when the first trigger groove 32 moves upwards to the position of the stop block 29, the stop block 29 moves towards the first trigger groove 32 under the action of the fourth spring 28, then the paper boards at the upper end of the stop block 29 fall onto the surface of the conveyor belt 3, the push strip 4 triggers the plate 24 along with the intermittent pushing of the conveyor belt 3, a single paper board can fall onto the surface of the conveyor belt 3 intermittently, the single intermittent blanking is beneficial to ensuring better printing, the phenomenon that a plurality of paper boards fall down during blanking to cause missing printing is avoided, and the blanking process does not need manual participation, reduces the manual workload, improves the working efficiency, then the push strip 4 is separated from the trigger plate 24, the trigger plate 24 can restore to the original position under the action of the third spring 23, the stop block 29 can move towards the feeding barrel 2 under the action of the first trigger groove 32, then when the second trigger groove 33 moves to the position of the lifting block 31, the lifting block 31 will move into the second trigger groove 33 under the action of the fifth spring 30, and the paper board above the lifting block 31 will fall to the upper end of the stop block 29; the falling paperboard can move to the right side under the action of the conveyor belt 3 and the pushing strip 4, when the paperboard moves to the position of the dust suction pipe 5, the dust suction pipe 5 can suck floating ash on the surface of the paperboard, then the paperboard can pass through the bottom of the left end of the clamping frame 35 when moving to the position of the clamping frame 35 along with the conveyor belt 3, then the paperboard can push the right end of the clamping frame 35, the clamping frame 35 can rotate under the action of the paperboard, the right end of the clamping frame 35 can be lifted, the left end can move downwards, the paperboard can gradually pass through the clamping frame 35, the rotating rollers 36 at the two ends of the clamping frame 35 can roll the paperboard, the deformed paperboard can be kept flat under the action of the clamping frame 35, on one hand, the paperboard can be guaranteed to move to the bottom of the sweeping plate 8, the paperboard can be prevented from being clamped at the position of the sweeping plate 8, the whole device can stop running, the production process can be influenced, on the other hand, the brush 10 can be guaranteed to brush and clean the surface of the whole paperboard, the problem that the brush 10 cannot completely clean the deformed paperboard surface to affect subsequent printing during cleaning is avoided, then the paperboard can move to the position of the sweeping plate 8, the paperboard can move to the bottom of the sweeping plate 8, the brush 10 can clean dust attached to the paperboard surface, in the moving process of the conveyor belt 3, the first synchronizing wheel 15 rotates synchronously under the action of the conveyor belt 3, the second synchronizing wheel 16 rotates under the action of the first synchronizing wheel 15 and the synchronizing belt 17, the cam 18 rotates along with the second synchronizing wheel 16, the sweeping plate 8 acts during the rotating process of the cam 18, the pulling rod 19 is driven by the rotation of the cam 18 to move in a reciprocating manner, the sweeping plate 8 moves in a reciprocating manner from left to right under the action of the cam 18, the brush 10 can brush the paperboard surface to clean the dust attached to the surface in a reciprocating manner, and the dust attached to a long time can be brushed in a reciprocating manner, the dust can be completely separated from the surface of the paperboard, and the problem that the dust which is attached for a long time cannot be cleaned by the brush 10 to influence the quality of subsequent printing is avoided; when the sweeping plate 8 shakes, the second sliding rod 13 can move in the second groove 11 under the action of the sweeping plate 8, on one hand, the second sliding rod 13 can provide certain pressure for the sweeping plate 8 to ensure that the brush 10 can be attached to a paper board and better brush and clean the paper board, and on the other hand, the second sliding rod 13 slides on the surface of the sweeping plate 8 to scrape dust on the surface of the sweeping plate 8 downwards and avoid that the dust is too high to be sucked away by the dust suction pipe 5; when the paperboard moves to the position of the heating plate 20, the paperboard can penetrate through the bottom of the heating plate 20, the heating plate 20 can heat the paperboard in the process of penetrating the paperboard, the heating plate 20 can reciprocate left and right under the action of the pulling rod 19 in the heating process, on one hand, ironing of the paperboard which is piled and deformed is facilitated, and the phenomenon that the paperboard which is deformed in the subsequent printing process can cause blurring of printed patterns is avoided, on the other hand, reciprocating movement of the heating plate 20 is facilitated to enable the surface of the paperboard to be uniformly heated, and deformation of the paperboard caused by local uneven heating of the paperboard is avoided; in the cleaning process, the cam 18 is arranged, the cam 18 can act on the sweeping plate 8 and the heating plate 20, the brush 10 can perform reciprocating brushing cleaning on dust attached to the surface of the paperboard, reciprocating brushing on the dust attached for a long time is facilitated, the dust can be completely separated from the surface of the paperboard, and the problem that the dust attached for a long time cannot be cleaned by the brush 10 to influence the quality of subsequent printing is avoided; the reciprocating movement of the heating plate 20 is beneficial to the uniform heating of the surface of the paperboard, and the deformation of the paperboard caused by the uneven local heating of the paperboard is avoided.

After the sweeping board 8 and the brush 10 clean the surface of the paperboard, the cleaned dust can be accumulated on the surface of the sweeping board 8 and can not be cleaned, and as a further scheme of the invention, the bottom of the sweeping board 8 is fixedly connected with a wave-shaped shifting block 34;

in-process of clearing up the cardboard surface at sweep-board 8, after sweep-board 8 finishes clearing up single cardboard, promote strip 4 and can remove the below position of sweep-board 8 along with the cardboard together, promote strip 4 top afterwards and can contact with stirring piece 34, sweep-board 8 can shake under the effect that promotes strip 4 and stirring piece 34, the dust on sweep-board 8 surface can be trembled, dust absorption pipe 5 can be siphoned away the dust of trembling, be favorable to trembling the accumulational dust in sweep-board 8 surface, avoid the dust to pile up on sweep-board 8 surface can not be cleared up.

After the brush 10 brushes and cleans the surface of the paperboard, scattered dust can remain on the surface of the paperboard, as a further scheme of the invention, an adsorption roller 37 is rotatably connected between the two mounting plates 1 and is positioned at the right side position of the sweeping plate 8, the adsorption roller 37 is positioned at the upper position of the conveyor belt 3, moisture exists on the surface of the adsorption roller 37, an L-shaped bearing plate 38 is fixedly connected between the two mounting plates 1 corresponding to the left side of the adsorption roller 37, and the end part of the bearing plate 38 is attached to the surface of the adsorption roller 37;

after the cardboard is cleared up by brush 10, the cardboard can move the position of adsorption roll 37, the cardboard can pass from adsorption roll 37's below, adsorption roll 37 can roll on the surface of conveyer belt 3, adsorption roll 37 can adsorb the dust that the cardboard surface scatters, be favorable to making the cardboard surface keep clean, guarantee the quality of follow-up printing, accept board 38 can scrape the surface of adsorption roll 37 adsorbed dust to the surface of accept board 38, there is a small amount of moisture on adsorption roll 37 surface, avoid the cardboard surface too dry, when hot plate 20 is ironed the cardboard surface, the cardboard can harden.

When the brush 10 cleans the paper board, the cleaned dust can be accumulated at the included angle between the pushing strip 4 and the paper board, as a further scheme of the invention, the upper end of the pushing strip 4 can stretch, the right side of the upper end of the pushing strip 4 is arc-shaped, and the height of the pushing strip 4 after being completely compressed is smaller than the thickness of a single paper board;

in-process at the clearance, when promoting strip 4 and removing sweep 8 positions, promote strip 4 and can contract under sweep 8's effect, be favorable to making the dust clear up completely, avoid the dust to pile up the contained angle department between promotion strip 4 and cardboard, the clearance of being not convenient for to when hot plate 20 is ironed the cardboard tail end, promote strip 4 and can contract, avoid hot plate 20 can be propped up by promoting strip 4, lead to the cardboard tail end can not be ironed.