CN116278363B

CN116278363B - Carton printing equipment

Info

Publication number: CN116278363B
Application number: CN202310564616.0A
Authority: CN
Inventors: 邱松岭; 徐剑
Original assignee: Jiangsu Shidai Tianqin Color Packaging Co ltd
Current assignee: Jiangsu Shidai Tianqin Color Packaging Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-08-29
Anticipated expiration: 2043-05-19
Also published as: CN116278363A

Abstract

The invention relates to the technical field of printing, in particular to carton printing equipment which comprises a main bracket, a supporting plate, side brackets, a conveyor, a supporting seat, a supporting column, a connecting rod, a supporting guide rod, a supporting spring, a printing support and the like; the main support is fixedly connected with a supporting plate, the main support is provided with a conveyor through a side support, a plurality of supporting seats are arranged on the conveyor in an annular array mode, supporting columns are connected to the supporting seats in a sliding mode, connecting rods are hinged to the supporting columns, the other ends of the connecting rods are hinged to the supporting rods, and the supporting rods are connected with the supporting seats in a sliding mode through supporting guide rods. After the carton is manually placed on the supporting seat, the triggering mechanism drives the supporting rod to fix the carton through the supporting column in the process of conveying the carton by the conveyor.

Description

Carton printing equipment

Technical Field

The invention relates to the technical field of printing, in particular to carton printing equipment.

Background

With the increasing attention of people to health, people need to know the types, the places of production, the dates and the like of fruits when buying the fruits, but some fruit planting bases have no corresponding measures, so that purchasers can know the purchased products directly through the package.

The variety of fruits in fruit planting bases is numerous, a plurality of cartons for packaging different fruits are needed, the yield of the fruits is difficult to estimate specifically, so that in order to save funds, a large number of blank cartons are needed to be purchased from a packaging factory, when certain fruits need to be packaged, the variety, the production place, the date and the like of the fruits to be packaged are printed on the blank cartons in advance, so that a purchaser can know the purchased fruits clearly, and then the fruits picked on the same day are placed into the cartons on the corresponding date by manpower to be packaged.

However, there is a lack of printing equipment in the prior art that can print molded cartons and that is relatively inexpensive to manufacture.

Disclosure of Invention

In order to overcome the disadvantages of the prior art, the present invention provides a carton printing apparatus.

The technical scheme of the invention is as follows: the utility model provides a carton lithography apparatus, including the main support, a support plate, the side support, the conveyer, the supporting seat, the support column, the linking pole, prop up the pole, the support guide arm, supporting spring, the printing support, adjusting part, printing machine and trigger mechanism, the rigid coupling has the backup pad on the main support, there is the conveyer through side support mounting on the main support, annular array's a plurality of supporting seats of installing on the conveyer, equal sliding connection has the support column on the supporting seat, it has the linking pole to articulate on the support column, it all articulates to prop up the pole to link up the pole other end, prop up the pole and prop up pole through supporting guide arm and supporting seat sliding connection, it has supporting spring to prop up the cover on the support pole, the rigid coupling has the printing support in the backup pad, install the printing machine through adjusting part on the printing support, adjusting part can adjust the printing position of printing machine, be connected with trigger mechanism on the support column, trigger mechanism drives to prop up the pole through the support column and struts the pole and fixes the box, so as to print the box.

Preferably, the triggering mechanism comprises a triggering rod and a triggering plate, wherein one end, far away from the connecting rod, of the supporting column is fixedly connected with the triggering rod, the supporting plate is fixedly connected with the triggering plate, and the triggering rod is extruded downwards by the triggering plate to drive the supporting column to fix the box body.

Preferably, the adjusting assembly comprises an adjusting plate, an adjusting guide rod, an adjusting screw rod and an adjusting bracket, the adjusting guide rod and the adjusting screw rod are respectively arranged on the printing support through the adjusting plate, the adjusting bracket is connected to the adjusting guide rod in a sliding manner, and the adjusting bracket is in threaded connection with the adjusting screw rod.

The conveyor drives the turning plate mechanism to lift the cover plates on two sides of the box body so as to prevent the cover plates from colliding with the supporting plate, the turning plate mechanism comprises a turning shaft, a turning plate, a tooth-missing gear, a rack and a turning torsion spring, the turning shaft is rotationally connected to the supporting plate, the turning plate and the tooth-missing gear are fixedly connected to the turning shaft respectively, the turning torsion spring is connected between the tooth-missing gear and the supporting plate, a plurality of racks are fixedly connected to the annular array on the conveyor belt, and the racks are matched with the tooth-missing gear.

Preferably, the pressing mechanism is arranged on the supporting plate and comprises a pressing plate support column, a pressing plate guide block, a pressing plate guide rod, a pressing plate sliding frame, a pressing plate spring, a pressing plate and a pressing spring, wherein the pressing plate guide block is fixedly connected to the supporting plate through the pressing plate support column, the pressing plate guide block is slidably connected with the pressing plate sliding frame through the pressing plate guide rod, the pressing plate guide rod is sleeved with the pressing plate spring, the pressing plate sliding frame is slidably connected with the pressing plate, the pressing plate spring is connected between the pressing plate sliding frame and the pressing plate sliding frame, a transmission assembly is connected to the printing machine, and the printing machine drives the pressing plate to flatten the front side of the cover plate through the transmission assembly in the process of printing the cover plate.

Preferably, the transmission assembly comprises a transmission bracket, a transmission guide rod, a transmission pressing plate, a transmission spring and a transmission connecting rod, wherein the transmission bracket is fixedly connected to the pressing plate support column, the transmission bracket is slidably connected with the transmission pressing plate for extruding the pressing plate sliding frame downwards through the transmission guide rod, the transmission spring is sleeved on the transmission guide rod, and the transmission connecting rod for driving the transmission pressing plate to extrude the pressing plate sliding frame is fixedly connected to the printing machine.

Preferably, the cleaning device further comprises a cleaning mechanism for cleaning dust on the cover plate, the cleaning mechanism is arranged on the supporting plate and comprises a cleaning support, a cleaning shaft, a cleaning spring, a dust collector and a dust collection head, the cleaning shaft is connected with the supporting plate in a sliding mode through the cleaning support, the cleaning spring is connected between the supporting plate and the supporting plate, the dust collector is arranged on the pressing plate support, and the dust collection head of the dust collector penetrates through the cleaning support and is located at the front side of the cleaning shaft.

Preferably, the ink-jet printing machine further comprises a dryer for drying the ink printed on the cover plate, and the dryer is arranged on the supporting plate.

The invention has the following advantages: after the paper box is manually placed on the supporting seat, in the process of conveying the paper box by the conveyor, the triggering mechanism drives the supporting rods to fix the paper box by the supporting columns, so that the influence on printing quality caused by movement of the paper box in the conveying and printing processes is prevented, a user can conveniently print information of a product on the paper box cover plate, and the manufacturing cost is lower;

in the process that the driving belt conveys the supporting seat backwards, the triggering plate drives the supporting column to slide downwards by downwards extruding the triggering rod, and then drives the lower side of the connecting rod to prop up the expanding rod to the periphery, so that the carton is fixed;

the printing machine is directly arranged on the adjusting guide rod and the adjusting screw rod, so that the printing position can be directly adjusted when the adjusting screw rod is manually rotated, the structure is simpler, and the maintenance and the replacement of the printing machine are facilitated;

the turnover plate is driven to rotate by the cooperation of the rack and the tooth-missing gear in the rotation process of the transmission belt, so that the cover plate can be lifted upwards, and the phenomenon that the cover plate sags to collide with the support plate in the transmission process to influence the normal printing treatment is prevented;

in the process of printing the paper box, the printing scraper drives the flattening plate to flatten the cover plate of the paper box through the transmission assembly, so that the surface of the cover plate can be more flat, and the surface of the cover plate can be conveniently printed;

the cleaning shaft can lift dust and fragments on the surface of the cleaning shaft in the conveying process of the cover plate, and the cleaning shaft is matched with the dust collector to clean the dust and the fragments, so that the dust or the fragments are prevented from affecting the printing treatment of the paper box.

Drawings

Fig. 1 is a schematic view of a processing state structure of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the present invention.

Fig. 3 is a schematic diagram of a connection relationship of the support base according to the present invention.

Fig. 4 is a schematic diagram of the positional relationship of the adjusting plate according to the present invention.

Fig. 5 is a schematic diagram of the position relationship of the trigger plate according to the present invention.

Fig. 6 is a schematic view of an enlarged position structure of the flipping panel of the present invention.

Fig. 7 is a schematic view of a structure of a driving platen of the present invention.

Fig. 8 is a schematic view of the positional relationship of the platen according to the present invention.

Fig. 9 is a schematic view showing an enlarged position structure of the cleaning support.

Meaning of reference numerals in the drawings: 1: master rack, 1001: support plate, 101: side stand, 102: conveying rotating shaft, 103: transfer wheel, 104: conveyor belt, 105: first gear, 106: a motor, 107: second gear, 2: support base, 201: support column, 202: connecting rod, 203: distracting rod, 204: support guide bar, 205: support spring, 3: trigger lever, 301: trigger plate, 4: a turnover shaft, 401: flipping panel, 402: tooth-missing gear, 403: rack, 404: overturning torsional springs, 5: printing support, 501: printing press, 502: first electric slide rail, 503: printing plate, 504: second electric slide rail, 505: printing squeegee, 6: platen support, 601: platen guide block, 602: platen guide bar, 6021: platen carriage, 603: platen spring, 604: platen plate, 605: flattening spring, 7: transmission support, 701: transmission guide, 702: drive platen, 703: transmission spring, 704: transmission connecting rod, 8: cleaning support, 801: cleaning shaft, 802: cleaning spring, 803: vacuum cleaner, 804: dust collection head, 9: adjusting plate, 901: adjusting guide bar, 902: adjusting screw, 903: adjusting bracket, 10: and a dryer.

Detailed Description

Although the invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the invention. Those of ordinary skill in the art will recognize such things as: terms such as above, below, upward, downward, etc. are used for describing the drawings, and do not represent limitations upon the scope of the present invention defined by the appended claims. Such as: any numerical designation of the first or second, etc. is merely exemplary and is not intended to limit the scope of the present invention in any way.

Example 1: 1-4, including a main support 1, a supporting plate 1001, a side support 101, a conveyor, a supporting seat 2, a supporting column 201, a connecting rod 202, a supporting rod 203, a supporting guide rod 204, a supporting spring 205, a printing support 5, an adjusting component, a printer 501 and a triggering mechanism, wherein the conveyor includes a conveying rotating shaft 102, a conveying rotating wheel 103, a conveying belt 104, a first gear 105, a motor 106 and a second gear 107, the upper side of the main support 1 is symmetrically fixedly connected with the two supporting plates 1001, the front and rear sides of the main support 1 are fixedly connected with the side support 101, the side support 101 is rotatably connected with the conveying rotating wheel 102, the two conveying rotating wheels 103 on the same side are jointly wound with the conveying belt 104, the conveying rotating shaft 102 on the front side is fixedly connected with the first gear 105, the front side of the main support 1 is provided with the motor 106, the output shaft of the motor 106 is provided with the second gear 107, a plurality of supporting seats 2 are arranged on the two conveyor belts 104 in a common annular array, supporting columns 201 are connected onto the supporting seats 2 in a sliding manner, four connecting rods 202 are hinged onto the upper ends of the supporting columns 201, supporting rods 203 are hinged onto the other ends of the connecting rods 202, four supporting guide rods 204 are symmetrically fixedly connected into the supporting seats 2, one ends, far away from the connecting rods 202, of the supporting rods 203 are connected onto the supporting guide rods 204 on the same side in a sliding manner, supporting springs 205 are sleeved on the supporting guide rods 204, two printing supports 5 are symmetrically fixedly connected onto supporting plates 1001 on two sides, a printing machine 501 is arranged on the printing supports 5 through an adjusting assembly, the printing machine 501 is an existing printing device, the printing position of the printing machine 501 can be adjusted by the adjusting assembly, the printing machine 501 comprises a first electric sliding rail 502, a printing plate 503, a second electric sliding rail 504 and a printing scraper 505, a first electric sliding rail 502 is arranged on the adjusting assembly, the printing plate 503 is installed on the first electric sliding rail 502, the mesh capable of penetrating ink is arranged at the bottom of the printing plate 503, the non-image-text part cannot penetrate ink, the second electric sliding rail 504 is installed on the printing plate 503, the printing scraper 505 is installed on the second electric sliding rail 504, ink is poured into one end of the printing plate 503 during printing, a certain pressure is applied to the ink part on the printing plate 503 by the printing scraper 505, meanwhile, the printing plate moves at a constant speed towards the other end of the printing plate 503, the ink is extruded onto a printing stock from the mesh of the image-text part by the printing scraper 505 during moving, the supporting column 201 is connected with the triggering mechanism, and the triggering mechanism drives the supporting rod 203 to fix the box through the supporting column 201 so as to print the box.

When in operation, a paper box to be printed is manually placed on the supporting seat 2, then the conveyor is started to convey the supporting seat 2 backwards, in the process of conveying the supporting seat 2 backwards, the triggering mechanism drives the supporting columns 201 downwards, the supporting columns 201 push the four supporting rods 203 to mutually far away directions through the connecting rods 202 and compress the supporting springs 205, four corners of the paper box are supported and fixed through the four supporting rods 203 so as to facilitate the printing of the cover plate of the paper box, the conveyor continues to convey the paper box with the fixed paper box backwards, two cover plates to be printed on the paper box slide on the supporting plates 1001, when the paper box moves to the printing position, the printer 501 is controlled to print the cover plate of the paper box backwards, the first electric sliding rail 502 is controlled to convey the printing plate 503 downwards, the printing plate 503 is contacted with the cover plate in a fitting way, then, the second electric slide rail 504 is controlled to drive the printing scraper 505 to move forward for printing, then the second electric slide rail 504 drives the printing scraper 505 to move backward for secondary printing and resetting, a user can replace the printing plate 503 according to the requirement so as to modify the printed image and text content, after printing, the first electric slide rail 502 is controlled to drive the printing plate 503 to move upward and separate from the cover plate, then the conveyor continues to convey the printed paper box backward, when the paper box is conveyed to the rear side of the conveyor, the triggering mechanism stops driving the supporting columns 201 downwards, then the compressed supporting springs 205 push the four supporting rods 203 to move towards the direction of approaching each other, and the supporting columns 201 are driven to move upwards for resetting by the connecting rods 202, so that the fixation of the paper box is released, and then the printed paper box is taken down; the position of the printer 501, and thus the printing position, can be adjusted by the adjustment assembly; after the carton is manually placed on the supporting seat 2, in the process of conveying the carton by the conveyor, the triggering mechanism drives the opening rod 203 to fix the carton by the supporting column 201, so that the influence on printing quality caused by the movement of the carton in the conveying and printing processes is prevented.

As shown in fig. 3 and 5, the triggering mechanism comprises a triggering rod 3 and a triggering plate 301, the lower end of a supporting column 201 is fixedly connected with the triggering rod 3, two triggering plates 301 are symmetrically and fixedly connected on supporting plates 1001 on two sides, and the triggering rod 3 is pressed downwards by the triggering plate 301 to drive the supporting column 201 to fix the box body.

In the process that the driving machine drives the supporting seat 2 to move backwards, the trigger rod 3 contacts with the inclined surface of the trigger plate 301, and in the process of continuing to move backwards, the trigger plate 301 presses the trigger rod 3 downwards, so that the supporting column 201 is driven to move downwards, and the trigger plate 301 limits the supporting column 201 to reset upwards through the trigger rod 3; when the carton printing is finished, in the process that the conveyor continues to convey the supporting seat 2 backwards, the trigger rod 3 is separated from the trigger plate 301, so that the trigger plate 301 does not limit the supporting column 201 to move upwards to reset through the trigger rod 3; in the process that the supporting seat 2 is conveyed backwards by the driving belt, the triggering plate 301 drives the supporting column 201 to slide downwards by downwards extruding the triggering rod 3, and then drives the lower side of the connecting rod 202 to prop up the expanding rod 203 around, so that the carton is fixed.

As shown in fig. 4, the adjusting assembly comprises an adjusting plate 9, an adjusting guide rod 901, an adjusting screw 902 and an adjusting bracket 903, wherein the adjusting plate 9 is fixedly connected to the printing support 5, the adjusting guide rod 901 is fixedly connected to the adjusting plate 9, the adjusting screw 902 is rotatably connected to the adjusting plate 9, the adjusting bracket 903 is slidably connected to the adjusting guide rod 901, the adjusting bracket 903 is in threaded connection with the adjusting screw 902, and the first electric sliding rail 502 is mounted on the adjusting bracket 903.

The printing machine 501 can be driven to slide on the adjusting guide rod 901 in the left-right direction by rotating the adjusting screw 902, so that the position of the printing machine 501 is adjusted, and the printing position is adjusted; through directly installing printing machine 501 on adjusting guide rod 901 and adjusting screw 902, can directly realize the regulation to the printing position when artifical rotation adjusting screw 902, the structure is simpler, is convenient for to the maintenance and the change of printing machine 501.

Example 2: on the basis of embodiment 1, as shown in fig. 2, 5 and 6, the device further comprises a turnover mechanism, wherein the turnover mechanism is driven to lift cover plates on two sides of the box body in the transmission process of the conveyor belt 104, so that collision between the cover plates and the supporting plate 1001 is prevented, the turnover mechanism comprises a turnover shaft 4, a turnover plate 401, a tooth-missing gear 402, a rack 403 and a turnover torsion spring 404, the front side of the supporting plate 1001 is respectively connected with the turnover shaft 4 through bracket rotation, the turnover plate 401 is fixedly connected on the turnover shaft 4, the tooth-missing gear 402 is fixedly connected on one side, close to the conveyor belt 104, of the turnover shaft 4, a plurality of racks 403 are fixedly connected on the annular array of the conveyor belt 104, the racks 403 are matched with the tooth-missing gear 402, the turnover torsion spring 404 is respectively sleeved on the bracket on the front side of the tooth-missing gear 402 and the supporting plate 1001, and two ends of the turnover torsion spring 404 are respectively connected on the bracket on the front side of the tooth-missing gear 402 and the supporting plate 1001.

When the paper box is manually placed on the supporting seat 2, the cover plates at the two sides of the paper box can swing downwards, and the downward swing of the cover plates of the paper box can collide with the supporting plates 1001 at the two sides; in the process that the conveyor conveys the cartons backwards, racks 403 on the conveyor belt 104 are meshed with the gear with teeth missing 402, the gear with teeth missing 402 drives the turnover shaft 4 to rotate, and twists the turnover torsion springs 404 to drive the turnover plate 401 to swing upwards, and the turnover plate 401 can stir up cover plates on two sides of the cartons in the rotating process, so that collision between the cover plates on two sides of the cartons and the supporting plate 1001 is prevented; then the rack 403 continues to move and is separated from contact with the gear with missing teeth 402, and the turnover torsion spring 404 drives the turnover shaft 4 to rotate and reset through the gear with missing teeth 402, so as to drive the turnover plate 401 to rotate and reset downwards; the cooperation through rack 403 and lack tooth gear 402 drives turnover plate 401 rotation in the drive belt rotation process, can upwards lift the apron, prevents that the apron sagging from leading to bumping with backup pad 1001 in the conveying process, leads to influencing normal printing processing.

As shown in fig. 5, 7 and 8, the pressing mechanism for pressing the cover plate is further included, the pressing mechanism is mounted on a supporting plate 1001, the pressing mechanism includes a pressing plate support 6, a pressing plate guide block 601, a pressing plate guide rod 602, a pressing plate carriage 6021, a pressing plate spring 603, a pressing plate 604 and a pressing plate spring 605, the outer side of the supporting plate 1001 is fixedly connected with the pressing plate support 6, the pressing plate support 6 is fixedly connected with the pressing plate guide block 601, two pressing plate guide rods 602 are symmetrically fixedly connected to the pressing plate guide block 601, the pressing plate guide block 601 and the pressing plate guide rod 602 are connected with the pressing plate carriage 6021 in a sliding manner, the pressing plate guide rod 602 is sleeved with the pressing plate spring 603, the pressing plate 604 is sleeved with the pressing plate spring 605 on a sliding shaft of the pressing plate 604, the printing plate 505 is connected with a transmission assembly, and the printing plate 505 drives the pressing plate 604 to press the cover plate on the front side through the transmission assembly.

The printer 501 reciprocates in the printing plate 503 through the printing scraper 505 to print the paper box, the printing scraper 505 moves forward and then backward, the printing scraper 505 drives the pressing plate sliding frame 6021 downwards through the transmission component in the forward moving process of the printing scraper 505 and compresses the pressing plate spring 603, the pressing plate sliding frame 6021 moves downwards to drive the pressing plate 604 to carry out flattening treatment on the cover plate of the paper box, so that the cover plate can be kept in a relatively flat state, the paper box cover plate can be printed better, and after the printing scraper 505 slides backward and resets, the pressing plate sliding frame 6021 resets upwards under the pushing of the pressing plate spring 603, and the pressing plate 604 is separated from the paper box cover plate; the printing scraper 505 drives the platen 604 to flatten the cover plate of the carton through the transmission component in the process of printing the carton, so that the surface of the cover plate can be flatter, and the surface of the cover plate can be conveniently printed.

As shown in fig. 4 and 7, the transmission assembly comprises a transmission bracket 7, a transmission guide rod 701, a transmission pressing plate 702, a transmission spring 703 and a transmission connecting rod 704, wherein the transmission bracket 7 is fixedly connected to the pressing plate support 6, the transmission guide rod 701 is fixedly connected to the transmission bracket 7, the transmission pressing plate 702 for downwardly extruding the pressing plate carriage 6021 is slidably connected to the transmission guide rod 701, the transmission spring 703 is sleeved on the transmission guide rod 701, and the transmission connecting rod 704 for driving the transmission pressing plate 702 to extrude the pressing plate carriage 6021 is fixedly connected to the printing scraping plate 505.

The printing scraper 505 drives the transmission connecting rod 704 to move forward in the forward moving process, the transmission connecting rod 704 contacts with the transmission pressing plate 702 in the forward moving process, the transmission connecting rod 704 pushes the transmission pressing plate 702 to slide forward and compress the transmission spring 703, and the transmission pressing plate 702 slides forward to press the pressing plate carriage 6021 downwards, so that the pressing plate 604 is driven to flatten the carton cover plate; during the forward movement reset process of the printing scraper 505, the transmission pressing plate 702 moves backwards under the pushing of the transmission spring 703 to reset, so that the pressing of the pressing plate sliding frame 6021 is canceled, and during the forward movement process of the printing scraper 505, the transmission connecting rod can be separated from contact with the transmission pressing plate 702.

Example 3: on the basis of embodiment 2, as shown in fig. 2 and 9, the dust-collecting device further comprises a cleaning mechanism for cleaning dust on the cover plate, the cleaning mechanism is mounted on the supporting plate 1001 and comprises a cleaning support 8, a cleaning shaft 801, cleaning springs 802, a dust collector 803 and dust collection heads 804, the cleaning support 8 is fixedly connected to the supporting plates 1001 on two sides, the cleaning shaft 801 is connected to the cleaning support 8 in a sliding manner, the cleaning springs 802 are sleeved on guide shafts of the cleaning shaft 801 and the cleaning support 8 in a sliding manner, the dust collector 803 is mounted on the pressure plate struts 6 on two sides, the dust collector 803 is provided with the dust collection heads 804, and the dust collection heads 804 penetrate through the cleaning support 8 and are positioned on the front sides of the cleaning shafts 801.

After the cartons are fixed by the opening rods 203 and in the backward transmission process, cover plates on two sides of the cartons slide on the supporting plates 1001, the carton cover plates pass through the lower portions of the cleaning shafts 801, dust and scraps on the carton cover plates can be cleaned by the cleaning shafts 801, and meanwhile, raised dust and scraps can be sucked by the dust collector 803, so that the influence of the dust and scraps on the printing of the carton cover plates is prevented.

As shown in fig. 1, the dryer 10 for drying the ink printed on the cover plate is further included, and two dryers 10 are symmetrically installed on the support plates 1001 at both sides.

In the process of transferring the cover plate printed with the ink backwards, the ink part on the cover plate can be dried by the dryer 10 so as to prevent the ink from contacting other objects when not airing, so that the image and text are blurred.

The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. All equivalents and alternatives falling within the spirit of the invention are intended to be included within the scope of the invention. What is not elaborated on the invention belongs to the prior art which is known to the person skilled in the art.

Claims

1. The utility model provides a carton lithography apparatus, is including main support (1), backup pad (1001), side stand (101), conveyer and printing machine, its characterized in that: still including supporting seat (2), support column (201), link up pole (202), strut pole (203), support guide arm (204), supporting spring (205), printing support (5), adjusting part and trigger mechanism, rigid coupling has backup pad (1001) on main support (1), install the conveyer through side stand (101) on main support (1), annular array's on the conveyer installs a plurality of supporting seats (2), equal sliding connection has support column (201) on supporting seat (2), articulated on support column (201) have connecting rod (202), link up pole (202) other end all articulated have strut pole (203), strut pole (203) are through supporting guide arm (204) and supporting seat (2) sliding connection, the cover has supporting spring (205) on supporting guide arm (204), rigid coupling has printing support (5) on backup pad (1001), be connected with trigger mechanism on printing support (5) through adjusting part can adjust the printing position of printing machine (501), trigger mechanism struts (201) and struts pole (203) through support column (201) and struts pole (203) and carries out the fixing in order to print to the box.

2. A carton printing apparatus as claimed in claim 1, wherein: the trigger mechanism comprises a trigger rod (3) and a trigger plate (301), wherein one end, far away from the connecting rod (202), of the support column (201) is fixedly connected with the trigger rod (3), the trigger plate (301) is fixedly connected to the support plate (1001), and the trigger rod (3) is extruded downwards by the trigger plate (301) to drive the support column (201) to fix the box body.

3. A carton printing apparatus as claimed in claim 1, wherein: the adjusting assembly comprises an adjusting plate (9), an adjusting guide rod (901), an adjusting screw rod (902) and an adjusting bracket (903), wherein the adjusting guide rod (901) and the adjusting screw rod (902) are respectively installed on the printing support (5) through the adjusting plate (9), the adjusting bracket (903) is connected to the adjusting guide rod (901) in a sliding mode, and the adjusting bracket (903) is in threaded connection with the adjusting screw rod (902).

4. A carton printing apparatus as claimed in claim 1, wherein: the novel turnover mechanism is characterized by further comprising a turnover mechanism, wherein the conveyor drives the turnover mechanism to lift cover plates on two sides of the box body so as to prevent the cover plates from colliding with the supporting plate (1001), the turnover mechanism comprises a turnover shaft (4), a turnover plate (401), a tooth-missing gear (402), a rack (403) and a turnover torsion spring (404), the turnover shaft (4) is rotationally connected to the supporting plate (1001), the turnover plate (401) and the tooth-missing gear (402) are fixedly connected to the turnover shaft (4) respectively, the turnover torsion spring (404) is connected between the tooth-missing gear (402) and the supporting plate (1001), a plurality of racks (403) are fixedly connected to the annular array on the conveyor belt (104), and the racks (403) are matched with the tooth-missing gear (402).

5. A carton printing apparatus as claimed in claim 1, wherein: the pressing mechanism is mounted on the supporting plate (1001), and comprises a pressing plate support column (6), a pressing plate guide block (601), a pressing plate guide rod (602), a pressing plate sliding frame (6021), a pressing plate spring (603), a pressing plate (604) and a pressing plate spring (605), wherein the pressing plate guide block (601) is fixedly connected to the supporting plate (1001) through the pressing plate support column (6), the pressing plate guide block (601) is slidably connected with a pressing plate sliding frame (6021) through the pressing plate guide rod (602), the pressing plate guide rod (602) is sleeved with the pressing plate spring (603), the pressing plate sliding frame (6021) is slidably connected with the pressing plate (604), the pressing plate spring (605) is connected between the pressing plate guide block and is connected with a transmission assembly, and the pressing plate (604) is driven to flatten a front-side cover plate through the transmission assembly in the process of printing the cover plate.

6. A carton printing apparatus as in claim 5 wherein: the transmission assembly comprises a transmission support (7), a transmission guide rod (701), a transmission pressing plate (702), a transmission spring (703) and a transmission connecting rod (704), wherein the transmission support (7) is fixedly connected to the pressing plate support (6), the transmission pressing plate (702) for downwards extruding the pressing plate sliding frame (6021) is slidably connected to the transmission support (7) through the transmission guide rod (701), the transmission spring (703) is sleeved on the transmission guide rod (701), and the transmission connecting rod (704) for driving the transmission pressing plate (702) to extrude the pressing plate sliding frame (6021) is fixedly connected to the printing machine.

7. A carton printing apparatus as claimed in claim 1, wherein: still including being used for carrying out the clearance mechanism of clearing up to the dust on the apron, clearance mechanism installs on backup pad (1001), clearance mechanism is including cleaning support (8), clean axle (801), clean spring (802), dust catcher (803) and dust absorption head (804), clean axle (801) through cleaning support (8) sliding connection on backup pad (1001), and be connected with between and clean spring (802), install dust catcher (803) on clamp plate pillar (6), dust absorption head (804) of dust catcher (803) pass clean support (8) and be located and clean axle (801) front side.

8. A carton printing apparatus as claimed in claim 1, wherein: the ink-jet printing device further comprises a dryer (10) for drying the ink printed on the cover plate, and the dryer (10) is arranged on the supporting plate (1001).