阅读说明：本技术 一种数字印刷装置 (Digital printing device ) 是由 谢勇 于 2021-09-27 设计创作，主要内容包括：本发明公开了一种数字印刷装置,包括安装有数字印刷输送带的进料室,进料室内设置有放料组件,放料组件上方设置有输料组件,进料室侧壁设置有由伺服电机进行驱动的旋转轴,旋转轴外侧壁固定连接有转动套筒,转动套筒通过多个气动转换组件连接有弧形送料板。本发明对纸板进行进料时,通过倾斜设置的自动下料板使得纸板自动滑落到输料板上,通过携带纸板转动的弧形送料板伸缩时产生的吹力对纸板的一侧进行吹动,使得纸板能在定位条板的限制下精准的落入到输料板上,弧形送料板同步移动的引导转轴对纸板的一端进行支撑,并驱动纸板能精准的进入到数字印刷输送带内,确保印刷的标准化,避免出现错印、偏印的情况发生。(The invention discloses a digital printing device which comprises a feeding chamber provided with a digital printing conveying belt, wherein a feeding assembly is arranged in the feeding chamber, a conveying assembly is arranged above the feeding assembly, a rotating shaft driven by a servo motor is arranged on the side wall of the feeding chamber, a rotating sleeve is fixedly connected to the outer side wall of the rotating shaft, and the rotating sleeve is connected with an arc-shaped feeding plate through a plurality of pneumatic conversion assemblies. When the paperboard feeding device feeds paperboards, the paperboards automatically slide onto the conveying plates through the obliquely arranged automatic blanking plates, one side of the paperboards is blown through blowing force generated when the arc-shaped conveying plates carrying the paperboards rotate stretch, so that the paperboards can accurately fall onto the conveying plates under the limitation of the positioning battens, the guide rotating shafts synchronously moving by the arc-shaped conveying plates support one ends of the paperboards and drive the paperboards to accurately enter the digital printing conveying belt, the printing standardization is ensured, and the situations of wrong printing and offset printing are avoided.)

1. A digital printing device comprises a feeding chamber (1) arranged on one side of a digital printing conveying belt (22), and is characterized in that a discharging component is arranged in the feeding chamber (1), a conveying component is arranged above the discharging component, the conveying component comprises a conveying belt (19) arranged in the feeding chamber (1), and a plurality of telescopic suckers (20) arranged in pairs are uniformly arranged on the outer surface of the conveying belt (19); the feeding chamber is characterized in that a rotating shaft (2) driven by a servo motor is arranged on the side wall of the feeding chamber (1), a rotating sleeve (3) is fixedly connected to the outer side wall of the rotating shaft (2), the rotating sleeve (3) is connected with an arc-shaped feeding plate (4) through a plurality of pneumatic conversion assemblies, an adsorption strip (5) used for adsorbing a paperboard to move is arranged on the outer side wall of the arc-shaped feeding plate (4), a guide driving assembly used for controlling the movement direction of the arc-shaped feeding plate (4) is arranged on the side wall of the feeding chamber (1), arc-shaped openings (6) are formed in the side walls of two sides of the feeding chamber (1) relatively, a guide rotating shaft (7) is connected in each arc-shaped opening (6) through a self-driving assembly, the end part of each guide rotating shaft (7) is connected with the rotating shaft (2) through a transmission assembly, and a material conveying plate (8) is arranged on the inner wall of the feeding chamber (1), a positioning batten (9) is arranged on the material conveying plate (8), an automatic material discharging plate (10) which is obliquely arranged is connected to one side of the material conveying plate (8), and a pneumatic positioning assembly used for ensuring the position of the paperboard is arranged on the material conveying plate (8);

the pneumatic conversion assembly comprises a plurality of pneumatic seats (11) uniformly arranged on the outer side wall of the rotating sleeve (3), a pneumatic main chamber (11.1) is formed in each pneumatic seat (11), a limiting seat (11.2) is connected in each pneumatic main chamber (11.1) in a sliding mode, a telescopic column (12) extending outwards through the side wall of each pneumatic seat (11) is fixedly connected to each limiting seat (11.2), and the telescopic column (12) is fixedly connected with the inner wall of the arc-shaped feeding plate (4);

a pneumatic annular cavity (11.3) is formed in the pneumatic seat (11), an annular piston (11.4) is arranged in the pneumatic annular cavity (11.3), the limiting seat (11.2) is fixedly connected with a plurality of linkage columns (11.5) which penetrate through the pneumatic annular cavity (11.3) and are fixedly connected with the annular piston (11.4), the adsorption strip (5) is provided with a gas transmission channel (11.6) which penetrates through the arc-shaped feeding plate (4), and the gas transmission channel (11.6) is communicated with the pneumatic annular cavity (11.3) through a hose (11.7);

the pneumatic positioning assembly comprises a communicating air port (3.1) formed in the rotating sleeve (3), the limiting seat (11.2) is connected with a main piston (11.8) in sliding contact with the inner wall of the pneumatic main cavity (11.1), and the pneumatic main cavity (11.1) is provided with a connecting air passage (3.2) which sequentially penetrates through the pneumatic seat (11) and the rotating sleeve (3) and is communicated with the communicating air port (3.1); an air conveying channel (3.3) is formed in the automatic blanking plate (10), a plurality of air blowing holes (3.4) are formed in the side wall of the air conveying channel (3.3), and a U-shaped air conveying pipe (3.5) communicated with the air conveying channel (3.3) is connected to the end portion of the rotating sleeve (3);

the guide driving assembly comprises an arc-shaped driving ring opening (13) formed in the side wall of the feeding chamber (1), two ends of the arc-shaped feeding plate (4) are fixedly connected with driving guide columns (14), and the end parts of the driving guide columns (14) are fixedly connected with guide balls (15) located in the arc-shaped driving ring opening (13);

the self-driving assembly comprises an arc-shaped tooth notch (6.1) formed in the inner wall of the arc-shaped notch (6), and the outer wall of the guide rotating shaft (7) positioned in the arc-shaped tooth notch (6.1) is fixedly connected with a self-rotating gear (6.2) meshed with the arc-shaped tooth notch (6.1);

arc recovery chamber (6.3) have been seted up to feed chamber (1) lateral wall, arc recovery chamber (6.3) inner wall is provided with replys piston (6.4), replying piston (6.4) fixedly connected with runs through arc pole (6.5) that arc recovery chamber (6.3) lateral wall outwards extended, guide pivot (7) lateral wall rotates and is connected with the go-between of being connected with arc pole (6.5).

2. A digital printing device according to claim 1, wherein the transmission assembly comprises an incomplete gear plate (16) fixedly connected to the outer side wall of the rotary shaft (2), and a rotary gear (17) in meshing connection with the incomplete gear plate (16) is fixedly connected to the end of the guide rotary shaft (7).

3. A digital printing apparatus according to claim 1, wherein the emptying assembly comprises a placing plate (18) arranged at the inlet chamber (1), and compensation lifters are arranged at both ends of the placing plate (18).

4. A digital printing device according to claim 1, wherein the digital printing conveyer belt (22) is arranged on the feeding chamber (1) at the guiding spindle (7), and a driving roller (21) for driving the paper board to accurately enter the digital printing conveyer belt (22) is fixedly connected to the outer side wall of the guiding spindle (7).

Technical Field

The invention relates to the technical field of digital printing feeding, in particular to a digital printing device.

Background

Digital printing, also known as short-cut printing or digital fast printing, has the working principle that: the operator outputs the original manuscript (image-text digital information), or digital information of digital medium, or network digital file received from network system to computer, and makes creative idea, modification and arrangement on the computer to obtain the digital signal which can be satisfied by customer, and makes the digital signal undergo the process of RIP treatment, and makes it into correspondent monochromatic pixel digital signal, and transmits it to laser controller, and emits correspondent laser beam, and can scan printing cylinder. The printing cylinder (without printing plate) made of photosensitive material is photosensitive to form the picture and text which can absorb ink or toner and then is transferred to the printing stock such as paper.

The digital printing bears the thing mostly for paper, cardboard etc., current digital printing equipment mainly is for carrying the paper that becomes the book through the driving roller, realize the printing through the printing cylinder in the in-process of carrying, cut after accomplishing the printing again, this kind of technology can only realize producing comparatively soft paper, comparatively tough stereoplasm paper material can't be rolled up and is a book, can only cut into specification and size's printing plate, carry printing plate one by one again, present digital printing equipment has a great deal of not enough when feeding to the printing plate, if can't guarantee the interval between the printing plate, the printing plate location scheduling problem inaccurately, for this moment propose a digital printing device.

Disclosure of Invention

The present invention is directed to a digital printing apparatus for solving the problems of the prior art.

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

a digital printing device comprises a feeding chamber arranged on one side of a digital printing conveying belt, wherein a discharging component is arranged in the feeding chamber, a conveying component is arranged above the discharging component, the conveying component comprises a conveying belt arranged in the feeding chamber, and a plurality of telescopic suckers arranged in pairs are uniformly arranged on the outer surface of the conveying belt; the side wall of the feeding chamber is provided with a rotating shaft driven by a servo motor, the outer side wall of the rotating shaft is fixedly connected with a rotating sleeve, the rotating sleeve is connected with an arc-shaped feeding plate through a plurality of pneumatic conversion components, the outer side wall of the arc-shaped feeding plate is provided with an adsorption strip for adsorbing a paperboard to move, the side wall of the feeding chamber at the rotating shaft is provided with a guide driving component for controlling the moving direction of the arc-shaped feeding plate, arc-shaped openings are oppositely formed on the side walls of the two sides of the feeding chamber, guide rotating shafts are connected in the arc-shaped openings through self-driving components, the end part of the guide rotating shaft is connected with the rotating shaft through a transmission assembly, a material conveying plate is arranged on the inner wall of the feeding chamber, the conveying plate is provided with a positioning batten, one side of the conveying plate is connected with an automatic blanking plate which is obliquely arranged, and the conveying plate is provided with a pneumatic positioning assembly for ensuring the position of the paperboard;

the pneumatic conversion assembly comprises a plurality of pneumatic seats uniformly arranged on the outer side wall of the rotating sleeve, a pneumatic main chamber is arranged in each pneumatic seat, a limiting seat is connected in each pneumatic main chamber in a sliding mode, a telescopic column which penetrates through the side wall of each pneumatic seat and extends outwards is fixedly connected with each limiting seat, and the telescopic column is fixedly connected with the inner wall of the arc-shaped feeding plate;

the pneumatic seat is internally provided with a pneumatic ring cavity, an annular piston is arranged in the pneumatic ring cavity, the limiting seat is fixedly connected with a plurality of linkage columns which penetrate into the pneumatic ring cavity and are fixedly connected with the annular piston, the adsorption strip is provided with a gas transmission channel which penetrates into the arc-shaped feeding plate, and the gas transmission channel is communicated with the pneumatic ring cavity through a hose;

the pneumatic positioning assembly comprises a communicating air port formed in the rotating sleeve, the limiting seat is connected with a main piston in sliding contact with the inner wall of the pneumatic main cavity, and the pneumatic main cavity is provided with a connecting air passage which sequentially penetrates through the pneumatic seat and the rotating sleeve and is communicated with the communicating air port; an air conveying channel is formed in the automatic blanking plate, a plurality of air blowing holes are formed in the side wall of the air conveying channel, and a U-shaped air conveying pipe communicated with the air conveying channel is connected to the end portion of the rotating sleeve;

the guide driving assembly comprises an arc-shaped driving annular opening formed in the side wall of the feeding chamber, two ends of the arc-shaped feeding plate are fixedly connected with driving guide columns, and the end parts of the driving guide columns are fixedly connected with guide balls positioned in the arc-shaped driving annular opening;

the self-driving assembly comprises an arc-shaped tooth notch formed in the inner wall of the arc-shaped notch, and the outer wall of the guide rotating shaft positioned in the arc-shaped tooth notch is fixedly connected with a self-rotating gear meshed with the arc-shaped tooth notch;

the arc is replied the chamber to the feeding chamber lateral wall has been seted up, the arc is replied intracavity wall and is provided with the answer piston, answer piston fixedly connected with runs through the arc and replies the outside arc pole that extends of chamber lateral wall, the guide pivot lateral wall rotates and is connected with the go-between of being connected with the arc pole.

Preferably, the transmission assembly comprises an incomplete gear disc fixedly connected to the outer side wall of the rotating shaft, and the end of the guide rotating shaft is fixedly connected with a rotating gear in meshing connection with the incomplete gear disc.

Preferably, the emptying assembly comprises a placing plate arranged at the feeding chamber, and compensation lifting pieces are arranged at two ends of the placing plate.

Preferably, the digital printing conveyer belt is arranged on the feeding chamber at the position of the guide rotating shaft, and the outer side wall of the guide rotating shaft is fixedly connected with a driving roller for driving the paper boards to accurately enter the digital printing conveyer belt.

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

1. when the device feeds a paperboard, the paperboard automatically slides onto the conveying plate through the obliquely arranged automatic blanking plate, and one side of the paperboard is blown through blowing force generated when the arc-shaped conveying plate carrying the rotation of the paperboard stretches, so that the paperboard can accurately fall onto the conveying plate under the limitation of the positioning strip plate, and the position accuracy of the adsorption strip during adsorption is ensured; and the guide rotating shaft which synchronously moves with the arc-shaped feeding plate is arranged to support one end of the paperboard, and the paperboard can be driven to accurately enter the digital printing conveying belt, so that the paperboard can be accurately positioned and moved into the digital printing conveying belt, the printing standardization is ensured, and the occurrence of wrong printing and offset printing is avoided.

2. Carry the cardboard that will pile together through defeated material belt on carrying defeated flitch one by one, utilize the arc delivery sheet of arc drive collar extension guide rotation axis to adsorb the cardboard to carry, when guaranteeing to carry the cardboard steadily, also can control the interval between two cardboards, realize the conveying cardboard of carrying on of timing ration, guarantee that digital printer can be accurate realization to the printing of cardboard.

Drawings

Fig. 1 is a schematic perspective view of a digital printing apparatus according to the present invention;

FIG. 2 is a schematic top cross-sectional view of a digital printing apparatus according to the present invention;

FIG. 3 is a schematic side view of a digital printing apparatus according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic front view of a digital printing apparatus according to the present invention;

fig. 6 is a schematic diagram of a back structure of a digital printing apparatus according to the present invention.

In the figure: the automatic feeding device comprises a feeding chamber 1, a rotating shaft 2, a rotating sleeve 3, a communicating air port 3.1, a connecting air passage 3.2, an air conveying passage 3.3, an air blowing hole 3.4, a 3.5U-shaped air conveying pipe, a 4 arc-shaped feeding plate, a 5 adsorption strip, a 6 arc-shaped opening, a 6.1 arc-shaped notch, a 6.2 self-rotating gear, a 6.3 arc-shaped recovery cavity, a 6.4 recovery piston, a 6.5 arc-shaped rod, a 7 guide rotating shaft, a 8 material conveying plate, a 9 positioning strip plate, a 10 automatic blanking plate, a 11 pneumatic seat, a 11.1 pneumatic main cavity, a 11.2 limiting seat, a 11.3 pneumatic ring cavity, a 11.4 annular piston, a 11.5 linkage column, a 11.6 air conveying passage, a 11.7 hose, a 11.8 main piston, a 12 telescopic column, a 13 arc-shaped driving ring opening, a 14 driving guide column, a 15 guiding ball, a 16 incomplete fluted disc, a 17 rotating gear, a 18 placing and releasing plate, a 19 conveying telescopic sucking disc, a 21 driving roller and a 22 digital printing belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-6, a digital printing apparatus comprises a feeding chamber 1 disposed at one side of a digital printing conveyor belt 22, a feeding assembly disposed in the feeding chamber 1, a feeding assembly disposed above the feeding assembly, further, the feeding assembly comprises a placing plate 18 disposed at the feeding chamber 1, compensation lifting members disposed at two ends of the placing plate 18, the compensation lifting members can be disposed at two sides of the feeding chamber and have a limit opening, a spring shaft is disposed therein to continuously and upwardly abut against the placing plate 18, so as to ensure that a top paper board can contact with a telescopic suction cup 20 on a feeding belt 19, the feeding assembly comprises a feeding belt 19 disposed in the feeding chamber 1, wherein the feeding belt 19 is driven by a motor-driven belt pulley, a plurality of telescopic suction cups 20 are uniformly disposed on an outer surface of the feeding belt 19 in pairs, and the telescopic suction cups 20 are commonly used technical means, and will not be described in detail herein.

The side wall of the feeding chamber 1 is provided with a rotating shaft 2 driven by a servo motor, the rotating shaft 2 is rotatably connected with the feeding chamber 1 through a bearing, the outer side wall of the rotating shaft 2 is fixedly connected with a rotating sleeve 3, the rotating sleeve 3 is connected with an arc-shaped feeding plate 4 through a plurality of pneumatic conversion assemblies, further, each pneumatic conversion assembly comprises a plurality of pneumatic seats 11 uniformly arranged on the outer side wall of the rotating sleeve 3, a pneumatic main chamber 11.1 is arranged in each pneumatic seat 11, a limiting seat 11.2 is slidably connected in each pneumatic main chamber 11.1, each limiting seat 11.2 is fixedly connected with a telescopic column 12 extending outwards through the side wall of each pneumatic seat 11, each telescopic column 12 is in sliding contact with each pneumatic seat 11 and is provided with a sealing ring to guarantee a sealing effect, and each telescopic column 12 is fixedly connected with the inner wall of the arc-shaped feeding plate 4; pneumatic ring chamber 11.3 has been seted up in the pneumatic seat 11, be provided with annular piston 11.4 in the pneumatic ring chamber 11.3, spacing seat 11.2 fixedly connected with a plurality of run through to in the pneumatic ring chamber 11.3, with annular piston 11.4 fixed connection's linkage post 11.5, adsorption strip 5 is seted up and is run through to the gas transmission passageway 11.6 in the arc feed plate 4, gas transmission passageway 11.6 communicates with pneumatic ring chamber 11.3 through hose 11.7, setting through hose 11.7, length compensation when can ensure flexible post 12 to stretch out and draw back, ensure that hose 11.7 can realize the intercommunication to gas.

The outer side wall of the arc-shaped feeding plate 4 is provided with an adsorption strip 5 for adsorbing the paperboard to move, the adsorption strip 5 needs to be lower than the lowest part of the arc-shaped feeding plate 4 so as to ensure that two adsorption strips 5 can adsorb the paperboard at the same time, the adsorption strip 5 is made of silica gel and has a deformation effect so as to ensure the adsorption effect on the paperboard, the side wall of the feeding chamber 1 at the position of the rotating shaft 2 is provided with a guide driving component for controlling the movement direction of the arc-shaped feeding plate 4, further, the guide driving component comprises an arc-shaped driving ring opening 13 arranged on the side wall of the feeding chamber 1, wherein the arc-shaped driving ring opening 13 consists of an inner ring and an outer ring, the inner ring is communicated with the outer ring through an arc-shaped opening, both ends of the arc-shaped feeding plate 4 are fixedly connected with driving guide columns 14, and the end parts of the driving guide columns 14 are fixedly connected with guide balls 15 positioned in the arc-shaped driving ring opening 13, the arc-shaped driving ring opening 13 is a spherical notch, and the guide ball 15 is arranged in the arc-shaped driving ring opening 13 and can realize sliding connection, so that friction is reduced.

Arc-shaped openings 6 are oppositely formed in the side walls of the two sides of the feeding chamber 1, guide rotating shafts 7 are connected in the arc-shaped openings 6 through self-driving assemblies, furthermore, the self-driving assemblies comprise arc-shaped tooth notch 6.1 formed in the inner wall of the arc-shaped openings 6, and rotation gears 6.2 meshed with the arc-shaped tooth notches 6.1 are fixedly connected to the outer walls of the guide rotating shafts 7 located in the arc-shaped tooth notches 6.1; the rotation gear 6.2 on the guide rotating shaft 7 rotates, so that the rotation gear 6.2 carries the guide rotating shaft 7 to move in the arc-shaped opening 6 under the action of the arc-shaped notch 6.1, the side wall of the feeding chamber 1 is provided with an arc-shaped recovery cavity 6.3, the inner wall of the arc-shaped recovery cavity 6.3 is provided with a recovery piston 6.4, when the guide shaft 7 moves in the arc-shaped opening 6, the return piston 6.4 can be made to press the air in the arc-shaped return cavity 6.3, when the incomplete gear disc 16 is disengaged from the rotating gear 17, the restoring piston 6.4 can drive the guide rotating shaft 7 to realize restoration under the action of compressed air, the restoring piston 6.4 is fixedly connected with an arc rod 6.5 which penetrates through the side wall of the arc restoring cavity 6.3 and extends outwards, the outer side wall of the guide rotating shaft 7 is rotatably connected with a connecting ring connected with the arc rod 6.5, and the arc rod 6.5 cannot influence the guide rotating shaft 7 to rotate due to the arrangement of the connecting ring; the end of the guide rotating shaft 7 is connected with the rotating shaft 2 through a transmission assembly, further, the transmission assembly comprises an incomplete fluted disc 16 fixedly connected on the outer side wall of the rotating shaft 2, and a rotating gear 17 meshed with the incomplete fluted disc 16 is fixedly connected to the end of the guide rotating shaft 7.

The inner wall of the feeding chamber 1 is provided with a material conveying plate 8, a positioning slat 9 is arranged on the material conveying plate 8, one side of the material conveying plate 8 is connected with an automatic blanking plate 10 which is obliquely arranged, and a pneumatic positioning assembly for ensuring the position of a paperboard is arranged on the material conveying plate 8; further, the pneumatic positioning assembly comprises a communication air port 3.1 formed in the rotary sleeve 3, the limiting seat 11.2 is connected with a main piston 11.8 in sliding contact with the inner wall of the pneumatic main cavity 11.1, and the pneumatic main cavity 11.1 is provided with a connecting air passage 3.2 which sequentially penetrates through the pneumatic seat 11 and the rotary sleeve 3 and is communicated with the communication air port 3.1; automatic flitch 10 down has seted up air duct 3.3, and a plurality of gas holes 3.4 have been seted up to air duct 3.3 lateral wall, and 3 end connection of rotating sleeve has the U type gas-supply pipe 3.5 with air duct 3.3 intercommunication, wherein be connected for rotating between U type gas-supply pipe 3.5's the tip and the rotating sleeve 3, thus do not influence the normal rotation of rotating sleeve 3.

Further, the digital printing conveyer belt 22 is arranged on the feeding chamber 1 at the position of the guide rotating shaft 7, the outer side wall of the guide rotating shaft 7 is fixedly connected with a driving roller 21 used for driving the paper boards to accurately enter the digital printing conveyer belt 22, and the arrangement of the driving roller 21 can drive the paper boards to enter the digital printing conveyer belt 22.

It is worth noting that the paperboard proposed in the scheme is not a hard paperboard, but a paperboard which cannot be rolled and has certain hardness and can be blown by wind power.

Specifically, when feeding the paper boards, the stacked paper boards are placed on the placing plate 18, the paper boards on the placing plate 18 are continuously conveyed upwards under the action of the compensation lifting piece at the bottom of the placing plate 18, the paper boards are conveyed towards the automatic feeding plate 10 one by one under the action of the conveying belt 19 and the telescopic suckers 20 on the conveying belt, the paper boards gradually slide down onto the automatic feeding plate 10 and the material conveying plate 8 under the action of gravity, and the paper boards are in an irregular state at the moment;

when the rotating shaft 2 drives the arc-shaped feeding plate 4 on the rotating shaft to rotate, the driving guide columns 14 at the two ends of the arc-shaped feeding plate 4 can guide the arc-shaped feeding plate 4 to move according to the arc-shaped driving ring opening 13 designed on the side wall of the feeding chamber 1 when the arc-shaped feeding plate 4 rotates, when the inner diameter of the arc-shaped driving ring opening 13 is reduced, the inner diameter of the arc-shaped feeding plate 4 relative to the rotating shaft 2 is reduced, namely the arc-shaped feeding plate 4 moves inwards, in the process, the telescopic columns 12 can drive the limiting seat 11.2 to move in the pneumatic main chamber 11.1, so that the main piston 11.8 compresses gas in the pneumatic main chamber 11.1, the gas can be conveyed into the gas conveying passage 3.3 through the connecting gas passage 3.2 and the U-shaped gas conveying pipe 3.5 and is discharged from the gas blowing hole 3.4, the discharged gas can blow the paperboard in the automatic discharging plate 10 and the paperboard conveying plate 8 through the gas blowing hole 3.4, one side of the paperboard is blown, the side of the paperboard opposite to the side of the paperboard is moved, so that the other end of the paperboard is in contact with the positioning lath 9 arranged on the material conveying plate 8, one end of the paperboard on the material conveying plate 8 is ensured to be in contact with the positioning lath 9, the conveyed paperboards are ensured to be in the same position, and the positioning effect on the paperboards is ensured;

under the guiding action of the arc-shaped driving ring opening 13, when the adsorption strip 5 arranged on the arc-shaped feeding plate 4 is in contact with the paperboard, the arc-shaped feeding plate 4 is moved inwards, so that the limiting seat 11.2 driven by the telescopic column 12 moves inwards, the annular piston 11.4 connected with the limiting seat 11.2 through the linkage column 11.5 can enable the starting ring cavity 11.3 to generate suction, and the adsorption strip 5 connected with the gas transmission channel 11.6 generates suction on the paperboard, so that the paperboard is adsorbed and driven to move;

the cardboard has flexibility, when it is driven to move on the arc-shaped feeding plate 4, both ends of the cardboard can sink under the action of gravity, in order to ensure that the cardboard can be accurately conveyed to the digital printing conveying belt 22, the guide rotating shaft 7 arranged on one side of the arc-shaped feeding plate 4 can firstly support the end part of the sunk cardboard in one step, and under the action of the incomplete fluted disc 16 and the rotating gear 17, the cardboard can be synchronously rotated with the arc-shaped feeding plate 4, when the arc-shaped feeding plate 4 is horizontal, the guide rotating shaft 7, the arc-shaped feeding plate 4 and the digital printing conveying belt 22 are on the same horizontal plane, at this time, the cardboard can be accurately conveyed to the digital printing conveying belt 22, specifically, the rotating gear 17 can rotate under the drive of the incomplete gear 16, the rotation can enable the rotation gear 6.2 arranged on the guide rotating shaft 7 to rotate, so that the rotation gear 6.2 can carry the guide rotating shaft 7 to move in the arc-shaped opening 6 under the action of the arc-shaped notch 6.1, so that the guide shaft 7 moves in synchronization with the arc-shaped feed plate 4 and the guide shaft 7 rotates to drive the sheet into the digital printing conveyer belt 22.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.