CN211808443U

CN211808443U - Jet printing machine

Info

Publication number: CN211808443U
Application number: CN201922266152.7U
Authority: CN
Inventors: 陈婷; 郭晓林
Original assignee: Shenzhen Handway Industrial Digital Equipment Co ltd
Current assignee: Shenzhen Handway Industrial Digital Equipment Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-10-30
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to the technical field of printing, and discloses a jet printing machine, which comprises a frame, a jet printing frame arranged on the frame, a spray head fixed on a bottom plate of the jet printing frame, and a conduction band driving a paperboard to move, wherein the conduction band is arranged below the spray head, and an adsorption device is arranged below the conduction band so as to lead the paperboard to be attached to the conduction band to move; an elastic paper pressing mechanism used for correcting warping of the paper board is arranged above the guide belt and comprises a first paper pressing plate, and the front of the first paper pressing plate inclines upwards along the moving direction of the paper board and forms a horn-shaped opening with the surface of the guide belt. The utility model makes the paper board enter the spray printing area from the horn-shaped opening, increases the passing rate of the paper board, and the paper board is flattened when passing through the elastic paper pressing mechanism, thereby avoiding the warped paper board from crashing the spray head and improving the spray printing efficiency; meanwhile, the distance between the paper feeding end of the paper board and the spray head is increased by the elastic paper pressing mechanism, so that the phenomenon of ink flying is avoided.

Description

Jet printing machine

Technical Field

The utility model discloses embodiment relates to printing technical field, especially relates to a spout seal machine.

Background

Ink jet printing technology is widely used in corrugated board printing industry. The application has extremely high requirement on the flatness of the corrugated board, and the existing corrugated board jet printing machine is often blocked by the jet printing bottom plate when jet printing warped corrugated paper, so that the corrugated paper cannot enter a preset jet printing position, the paper jamming phenomenon occurs, and the jet printing efficiency is low. In order to prevent the spray head from being damaged by collision, the corrugated board needs to be detected before entering the spray printing area, and the corrugated board can normally enter the spray printing area to be printed by ensuring the warping rate of the corrugated board within an allowable range.

The medium conveying platform among the digital printing technique is mostly the belt and adsorbs the transport, because the guide structure of cardboard feed inlet is shorter with the distance of shower nozzle, and adjacent spout has the opening clearance between the seal frame, can lead to the cardboard front and back end easily to follow the cardboard edge toward drifting downwards when spouting the seal under the influence that the bottom was ventilated, causes the edge image fuzzy, influences the printing quality.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the embodiment of the utility model provides a jet printing machine to the solution influences the technical problem of printing quality because of the cardboard warpage.

In order to solve the technical problem, an embodiment of the utility model provides a following technical scheme: providing a jet printing machine, which comprises a frame, a jet printing frame arranged on the frame, a spray head fixed on a bottom plate of the jet printing frame, and a guide belt driving a paperboard to move, wherein the guide belt is arranged below the spray head, and an adsorption device is arranged below the guide belt so that the paperboard is attached to the guide belt to move;

an elastic paper pressing mechanism used for correcting warping of the paper board is arranged above the guide belt and comprises a first paper pressing plate, and the front of the first paper pressing plate inclines upwards along the moving direction of the paper board and forms a horn-shaped opening with the surface of the guide belt.

In some embodiments, the elastic paper pressing mechanism further comprises a reinforcing rib fixed above the first paper pressing plate, and a fixing component and an elastic component arranged on two sides of the reinforcing rib;

the elastic paper pressing mechanism is fixed on the rack through the fixing component.

In some embodiments, the fixing assembly includes a mounting seat, a guide seat and a guide rod, the mounting seat is fixed on the first paper pressing plate, the guide seat is disposed above the mounting seat and fixed on the machine frame, and the guide rod is inserted between the mounting seat and the guide seat.

In some embodiments, the guide seat includes a main body portion, and a first connecting portion and a second connecting portion extending inward from upper and lower ends of the main body portion, respectively, and the first connecting portion and the second connecting portion are both provided with a shaft hole for the guide rod to pass through.

In some embodiments, the fixing assembly further includes two oilless bushings respectively disposed in the shaft holes of the first connecting portion and the second connecting portion, and the guide rod is fixed to the guide seat after passing through the oilless bushings.

In some embodiments, the elastic assembly includes a spring and a pressing plate, one end of the pressing plate is fixed on the reinforcing rib, the other end of the pressing plate is clamped with the guide rod, and the spring is accommodated between the pressing plate and the second connecting portion and sleeved on the guide rod.

In some embodiments, the bottom surface of the first paper pressing plate and the bottom surface of the bottom plate of the jet printing frame are positioned at the same height; the bottom surface of the spray head and the bottom surface of the bottom plate of the spray printing frame are at a preset height.

In some embodiments, a downward inclined chamfer is arranged behind the first paper pressing plate, and an inclined surface is arranged at the bottom of the side, close to the paper feeding end, of the bottom plate of the jet printing frame, so that when the jet printing frame moves downward, the bottom plate presses the chamfer behind the paper pressing plate, and when the jet printing frame moves downward, the inclined surface of the bottom plate abuts against the chamfer behind the first paper pressing plate.

In some embodiments, a downward-inclined chamfer is arranged behind the first paper pressing plate, and a plane extends outwards from one side of the bottom plate of the jet printing frame close to the paper feeding end, so that when the jet printing frame moves downwards, the plane extending outwards from the bottom plate abuts against the chamfer behind the first paper pressing plate.

In some embodiments, the inkjet printer comprises N inkjet printing frames (N is greater than or equal to 2), the elastic paper pressing mechanism is arranged in front of a first inkjet printing frame along the moving direction of the paper board, a second paper pressing plate is further arranged behind the first inkjet printing frame, the second paper pressing plates are arranged in front of and behind the 2 nd to nth inkjet printing frames, and the second paper pressing plate arranged behind the previous inkjet printing frame abuts against the second paper pressing plate arranged in front of the next inkjet printing frame;

the second paper pressing plate is fixed on the bottom plate of the jet printing frame.

The utility model discloses embodiment's beneficial effect is: the paperboard enters the jet printing area from the horn-shaped opening formed by the first paper pressing plate and the guide belt, the passing rate of the paperboard is increased, the paperboard is flattened and corrected through the elastic paper pressing mechanism, the nozzle is prevented from being damaged by the warped paperboard, and the jet printing efficiency is improved; meanwhile, an elastic paper pressing mechanism is arranged in front of the jet printing frame, so that the distance between the paper feeding end of the paper board and the spray head is increased, and the phenomenon of ink flying is avoided.

Drawings

One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.

Fig. 1 is a schematic plan view of an inkjet printer according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the elastic platen mechanism shown in FIG. 1;

FIG. 3 is an enlarged schematic view of the inkjet printer A of FIG. 1;

FIG. 4 is an enlarged schematic view of the jet printer B of FIG. 1;

fig. 5 is an enlarged schematic view of the elastic platen mechanism C shown in fig. 2;

fig. 6 shows another embodiment of the elastic platen mechanism shown in fig. 5.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the present invention provides an inkjet printer 100, which includes a frame (not shown), an inkjet printing frame 10 disposed on the frame, a nozzle 20 fixed on a bottom plate 11 of the inkjet printing frame 10, and a guide belt 30 driving a paper board 200 to move, wherein the guide belt 30 is disposed below the nozzle 20, and an adsorption device is disposed below the guide belt 30, so that the paper board 200 adheres to the guide belt 30 to move; an elastic paper pressing mechanism 40 for correcting the warping of the paper board is arranged above the guide belt 30, so that the warped paper board is prevented from colliding with a spray head when entering the jet printing area, the jet printing machine 100 is stopped or damaged, and the jet printing efficiency is reduced.

The elastic paper pressing mechanism 40 comprises a first paper pressing plate 41, the front of the first paper pressing plate 41 inclines upwards along the moving direction of the paper boards 200, and a horn-shaped opening is formed on the surface of the guide belt 30, so that the paper boards with the warping rate in the opening can pass through, the passing rate of the paper boards 200 is increased, and the horn-shaped opening can also correct the warped paper boards 200; the elastic paper pressing mechanism 40 is fixed on the frame through the fixing component 43, so that interference with the jet printing frame due to space influence is avoided. Before the paper board 200 enters the printing area printed by the nozzle 20 under the driving of the conduction band 30, the first paper pressing plate 41 can form an air flow partition area, so that the front end and the rear end of the paper board 200 cannot form strong air flow from top to bottom when receiving ink jet printing, ink flying is avoided, and the printing quality is ensured.

Referring to fig. 3 and 4, the bottom surface of the first platen 41 and the bottom surface of the bottom plate 11 of the inkjet print rack 10 are located at the same height, and the bottom surface of the nozzle 20 and the bottom surface of the bottom plate 11 of the inkjet print rack 10 have a preset height (d), in this embodiment, the preset height (d) is about 1-2mm, specifically, the bottom surface of the nozzle 20 is retracted into the bottom plate 11 and is higher than the bottom surface of the bottom plate 11, and in other embodiments, the height of the preset height may be changed according to actual needs. Thus, after the paperboard 200 is guided and corrected by the first paper pressing plate 41, the paperboard 200 with slight warpage is driven by the guide belt 30 to be only abutted against the bottom surface of the bottom plate 11 of the jet printing frame 10, so that the nozzle is not touched, and the damage of the nozzle is avoided.

A downward inclined chamfer is arranged behind the first paper pressing plate 41, and an inclined plane 111 is arranged at the bottom of the side, close to the paper feeding end, of the bottom plate 11 of the jet printing frame 10, so that when the jet printing frame 10 moves downward, the bottom plate 11 of the jet printing frame 10 presses the chamfer behind the first paper pressing plate 41, and the first paper pressing plate 41 is driven to move downward along with the jet printing frame 10.

In other embodiments, a plane extends outward from a side of the bottom plate 11 of the inkjet printing frame 10 close to the paper feeding end, so that when the inkjet printing frame 10 moves downward, the outward extending plane of the bottom plate 11 of the inkjet printing frame 10 presses a rear chamfer of the first paper pressing plate 41.

Referring to fig. 5, the elastic paper pressing mechanism 40 further includes a rib 42 fixed above the first paper pressing plate 41, and a fixing assembly 43 and an elastic assembly 44 disposed at two sides of the rib 42, and the elastic paper pressing mechanism 40 is fixed on the frame through the fixing assembly 43.

The fixing assembly 43 comprises a mounting seat 431, a guide seat 432 and a guide rod 433, the mounting seat 431 is fixed on the first paper pressing plate 41, the guide seat 432 is arranged above the mounting seat 431 and fixed on the rack, and the guide rod 433 is arranged between the mounting seat 431 and the guide seat 432 in a penetrating manner.

The guide seat 432 includes a main body portion 4321, and a first connecting portion 4322 and a second connecting portion 4323 extending inward from upper and lower ends of the main body portion 4321, wherein the first connecting portion 4322 and the second connecting portion 4323 are both provided with shaft holes for the guide rod 433 to penetrate through.

The fixing assembly 43 further includes two oilless bushings 434, the two oilless bushings 434 are respectively disposed in the shaft holes of the first connecting portion 4322 and the second connecting portion 4323, and the guide rod 433 is fixed to the guide seat 432 after passing through the two oilless bushings 434.

The elastic assembly 44 includes a spring 441 and a pressing plate 442, one end of the pressing plate 442 is fixed to the stiffener 42, the other end of the pressing plate 442 is clamped to the guide rod 433, the pressing plate 442 can slide along the guide rod 433, and the spring 441 is accommodated between the pressing plate 442 and the second connecting portion 4323 and is sleeved on the guide rod 433.

When the jet printing frame 10 moves downwards during jet printing, the bottom plate 11 of the jet printing frame 10 abuts against the chamfer at the rear of the first paper pressing plate 41 to drive the first paper pressing plate 41 and the pressing plate 442 to move downwards together, and the spring 441 is compressed; when the inkjet printing is completed, the inkjet printing frame 10 moves upward, and the first paper pressing plate 41 is sprung up by the restoring force of the spring 441.

In other embodiments, referring to fig. 6, the spring 441 is accommodated between the first connecting portion 4322 and the second connecting portion 4323, and is sleeved on the guide rod 433, one end of the pressing plate 442 is fixed on the reinforcing rib 42, and the other end is fastened and fixed with the spring 441, so as to divide the spring 441 into an upper portion 4411 and a lower portion 4412.

When the jet printing frame 10 moves downwards during jet printing, the bottom plate 11 of the jet printing frame 10 abuts against the chamfer at the rear of the first paper pressing plate 41 to drive the first paper pressing plate 41 and the pressing plate 442 to move downwards together, the lower part 4412 of the spring 441 is compressed, and the upper part of the spring 441 is stretched; when the inkjet printing is completed, the inkjet printing frame 10 moves upward, and the first paper pressing plate 41 is sprung up by the restoring force of the spring 441.

Referring to fig. 1 again, the inkjet printer includes N inkjet print stands (N is greater than or equal to 2), the elastic paper pressing mechanism 40 is disposed in front of the first inkjet print stand along the moving direction of the paper boards 200, a second paper pressing plate 50 is disposed behind the first inkjet print stand, the second paper pressing plates 50 are disposed in front of and behind the 2 nd inkjet print stand and the nth inkjet print stand, the second paper pressing plate 50 disposed behind the previous inkjet print stand abuts against the second paper pressing plate 50 disposed in front of the next inkjet print stand, the bottom surface of the second paper pressing plate 50 is flush with the bottom surface of the bottom plate 11 of the inkjet print stand 10, and the warped paper boards are prevented from tilting up again to collide against the bottom plate 11 of the subsequent inkjet print stand 10 and the spray head 20 when leaving the bottom plate of the previous inkjet print stand, so that the second paper pressing plate 50 can form a relatively sealed space above the guide belt 30 between the adjacent paper boards 200, when the ink jet process is performed on the paper boards 200, strong air flow from top to bottom is not formed at the front and rear ends of the paper boards 200, and ink flying between adjacent paper boards due to an adsorption device below the conduction band can be prevented, so that the printing quality is ensured.

The second paper pressing plate 50 may be an independent sheet metal part, fixed on the bottom plate 11 of the inkjet printing frame 10, or integrally formed with the bottom plate 11 of the inkjet printing frame 10. The second platen 50 in front and back of the 2 nd to nth inkjet printing shelves 10 may be of the same or different structure, and the present embodiment is of different structure. It is contemplated that in some embodiments, two second paper pressing plates 50 between adjacent ones may also be provided as an integrally formed structure.

In specific implementation, the downward movement distance of the inkjet printing frame is adjusted according to the thickness change of the paper board and the change of the printing height, the paper board 200 is placed on the guide belt 30, the paper board 200 moves towards the paper feeding end along with the guide belt 30 under the action of the adsorption device, the inkjet printing frame 10 drives the spray head 20 to move downwards, the bottom plate 11 of the inkjet printing frame 10 abuts against the chamfer of the first paper pressing plate 41 to drive the first paper pressing plate 41 and the pressing plate 442 to move downwards, the spring 441 is compressed, the paper board 200 is flattened and corrected and enters the inkjet printing area along with the guide belt 30, and the paper board 200 leaves the first inkjet printing frame along with the guide belt 30 and is pressed into the next inkjet printing area by the second paper pressing plate 50; when the inkjet printing is completed, the inkjet printing frame 10 moves upward, and the first paper pressing plate 41 is bounced by the restoring force of the spring 441.

The utility model provides a spout the seal machine, make the cardboard get into from the trumpet-shaped opening that first nipper and conduction band formed and spout the seal district, increased the throughput rate of cardboard, the cardboard is flattened through elasticity nipper and is corrected, avoids the crooked cardboard to hit the shower nozzle, has improved and has spouted seal efficiency; meanwhile, an elastic paper pressing mechanism is arranged in front of the first jet printing frame, so that the distance between the paper feeding end of the paper board and the spray head is increased, and the phenomenon of ink flying is avoided.

It should be noted that the preferred embodiments of the present invention are described in the specification and the drawings, but the present invention can be realized in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not provided as additional limitations to the present invention, and are provided for the purpose of making the understanding of the disclosure of the present invention more thorough and complete. Moreover, the above features are combined with each other to form various embodiments not listed above, and all of them are considered as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. The jet printing machine is characterized by comprising a rack, a jet printing frame arranged on the rack, a spray head fixed on a bottom plate of the jet printing frame, and a guide belt driving a paperboard to move, wherein the guide belt is arranged below the spray head, and an adsorption device is arranged below the guide belt so that the paperboard is attached to the guide belt to move;

2. The inkjet printer according to claim 1,

the elastic paper pressing mechanism further comprises a reinforcing rib fixed above the first paper pressing plate, and a fixing assembly and an elastic assembly which are arranged on two sides of the reinforcing rib;

3. The inkjet printer according to claim 2,

the fixing assembly comprises a mounting seat, a guide seat and a guide rod, the mounting seat is fixed on the first paper pressing plate, the guide seat is arranged above the mounting seat and fixed on the rack, and the guide rod penetrates through the mounting seat and between the guide seats.

4. The inkjet printing machine according to claim 3,

the guide holder includes the main part, and certainly first connecting portion and the second connecting portion of inside extension respectively in the upper and lower both ends of main part, first connecting portion with the shaft hole that the confession was worn to establish by the guide arm is all seted up to the second connecting portion.

5. The inkjet printing machine according to claim 4,

the fixing assembly further comprises two oilless bushings which are arranged in the first connecting portion and the shaft hole in the second connecting portion respectively, and the guide rod penetrates through the oilless bushings and then is fixed on the guide seat.

6. The inkjet printing machine according to claim 5,

the elastic assembly comprises a spring and a pressing plate, one end of the pressing plate is fixed on the reinforcing rib, the other end of the pressing plate is connected with the guide rod in a clamping mode, and the spring is contained in the pressing plate and between the second connecting portions and sleeved on the guide rod.

7. The inkjet printer according to claim 1,

the bottom surface of the first paper pressing plate and the bottom surface of the bottom plate of the jet printing frame are positioned at the same height;

the bottom surface of the spray head and the bottom surface of the bottom plate of the spray printing frame are at a preset height.

8. The inkjet printing machine according to claim 7,

a downward inclined chamfer is arranged at the rear of the first paper pressing plate, and an inclined plane is arranged at the bottom of one side, close to the paper feeding end, of the bottom plate of the spray printing frame, so that the bottom plate can press the chamfer at the rear of the paper pressing plate when the spray printing frame moves downwards, and the inclined plane of the bottom plate is abutted to the chamfer at the rear of the first paper pressing plate when the spray printing frame moves downwards.

9. The inkjet printing machine according to claim 7,

a downward inclined chamfer is arranged behind the first paper pressing plate, and a plane extends outwards from one side, close to the paper feeding end, of the bottom plate of the jet printing frame, so that when the jet printing frame moves downwards, the plane extending outwards from the bottom plate is abutted to the chamfer behind the first paper pressing plate.

10. The inkjet printing machine according to any one of claims 1 to 9,

the jet printing machine comprises N jet printing frames, wherein N is an integer larger than 1, the elastic paper pressing mechanism is arranged in front of a first jet printing frame along the moving direction of the paper board, a second paper pressing plate is arranged behind the first jet printing frame, the second paper pressing plates are arranged at the front and back parts of the 2 nd to Nth jet printing frames, and the second paper pressing plate arranged at the back part of the former jet printing frame is abutted with the second paper pressing plate arranged at the front part of the latter jet printing frame;