Jet printing equipment for paperboard production

Abstract

The invention discloses jet printing equipment for paperboard production, and relates to the technical field of carton jet printing, the jet printing equipment comprises a guide rail frame, a transmission assembly is arranged in the guide rail frame, a protective baffle is mounted on the top of the guide rail frame, and a jet printing part and a trigger adjusting part are arranged in the protective baffle; the trigger adjusting parts are used for being attached to the two sides of a paperboard and triggering to change the position of the code spraying machine, code spraying machining at the fixed position of the paperboard is facilitated, the supporting gear is pushed to roll on the rack support so that the position of the code spraying machine can be adjusted, and through the arranged two adjusting plates, adjustment of the adaptive position can be conducted according to the position of the paperboard; the position of the ink-jet printer is changed through cooperation of the linkage component, so that it can be guaranteed that ink-jet processing is conducted on the fixed position of the paperboard, the ink-jet printer is neat and tidy, the adjusting plate can be adaptively adjusted and automatically adapted according to the position of the paperboard, and the processing efficiency is conveniently improved.

Description

Technical Field

[0001] The present invention relates to the technical field of carton printing, and more specifically, to a printing device for paperboard production. Background Art

[0002] Cardboard is a common packaging material, usually made of two or more layers of pulp, with adhesives or other reinforcing materials sandwiched in between. It is mainly used to make various packaging boxes, such as food boxes, electrical boxes, shoe boxes, etc. Cardboard printing equipment is a commonly used equipment in the packaging industry, used to quickly and efficiently print patterns, text and other information on the surface of cardboard.

[0003] When working, the printing equipment will cause the printed logo to be skewed due to the incorrect placement of the carton. Referring to the Chinese patent case with the authorization announcement number CN210257440U, a printing equipment for carton production is disclosed, which involves the field related to carton production, and is used to solve the problem of skewed or incomplete printing caused by the long movement stroke and incorrect position in the printing process in the prior art. An X-axis guide slide is arranged at the upper and lower ends between the printing frames, a Y-axis guide slide is arranged between the two X-axis guide slides, and two Y-axis guide slides are arranged, and the X-axis guide slide and the Y-axis guide slide are provided with tooth grooves, and the upper end of the Y-axis guide slide is installed with a horizontal drive motor, and a vertical moving plate is arranged between the two Y-axis guide slides, and a vertical moving gear is installed in the middle of the two sides of the vertical moving plate, and a vertical driving motor is installed on one side of the vertical moving gear, and a printing electric telescopic shaft is installed in the middle of the front end of the vertical moving plate, and a printer is installed at the front end of the printing electric telescopic shaft.

[0004] In the above case, the position of the carton is adjusted mainly by the cooperation of the X-axis guide slide and the Y-axis guide slide to ensure that the carton is centered for coding operation. However, the X-axis guide slide and the Y-axis guide slide are controlled by the horizontal drive motor and the vertical drive motor respectively. Active adjustment is required when coding each carton, which is more labor-intensive and affects the processing efficiency. Based on the above problems, we provide a printing equipment for cardboard production. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a printing device for paperboard production.

[0006] The present invention provides a printing device for cardboard production using the following technical solution:

[0007] A printing device for cardboard production includes a guide rail frame, a transmission component is arranged in the guide rail frame, and a protective baffle is installed on the top of the guide rail frame, and a printing component and a trigger adjustment component are arranged in the protective baffle:

[0008] The printing component includes two rack brackets, support gears are meshed and installed on the two rack brackets, support rods are mounted on the front and rear support gears, and a printer is installed on the middle of the support rods for printing on the cardboard;

[0009] The trigger adjustment component includes two adjustment plates, and an inclined baffle is movably installed on the side of the adjustment plate. A side baffle is also installed on the free end of the inclined baffle, which is used to fit on both sides of the cardboard and trigger the change of the position of the inkjet printer, so as to facilitate the inkjet processing at the fixed position of the cardboard;

[0010] Among them, a trigger guide frame is also installed on the side baffle, and a linkage component for changing the position of the inkjet printer is arranged on the trigger guide frame. The transmission assembly in the guide frame includes an active roller shaft arranged in an upper row and a driven roller shaft arranged in a lower row. The active roller shaft and the driven roller shaft are both equipped with multiple rubber transmission wheels to facilitate the transportation of cardboard.

[0011] Preferably, the linkage component includes a linkage rack arranged above the rack bracket, the linkage rack is meshed with a supporting gear on the rack bracket, and a linkage rod is also installed in the direction of the linkage rack facing the trigger adjustment component, and a fixing sleeve is also mounted on the end of the linkage rod, fixing plates extend on both sides of the fixing sleeve, and bolt members are installed on the fixing plates, and a plurality of bolt holes for matching the bolt members are equidistantly provided on the trigger guide frame.

[0012] Preferably, bolt rods are rotatably installed on both ends of the trigger guide frame, a telescopic frame is mounted on the bolt rod, the telescopic frame and the bolt rod are threadedly matched, and slide grooves are provided on both sides of the telescopic frame, guide rails extend outward from both ends of the trigger guide frame, the guide rails are slidably inserted in the slide grooves, and a trigger rod is also rotatably installed on the bottom of the telescopic frame, and the trigger rod is fixedly connected to the top of the side baffle.

[0013] Preferably, the trigger adjustment component also includes an adjustment screw installed between the two protective baffles, the adjustment plate is slidably mounted on the adjustment screw, and fixing bolt sleeves are also installed on both sides of the adjustment plate, and the fixing bolt sleeves are threadedly mounted on the adjustment screw.

[0014] Preferably, an embedded groove is also provided on the side of the adjustment plate, a shaft sleeve is installed on the front end of the inclined baffle, a hinge shaft is rotatably installed in the shaft sleeve, the hinge shaft is rotatably installed in the embedded groove, and torsion springs are also installed at the upper and lower ends of the hinge shaft, and the two ends of the torsion spring are respectively restricted on the embedded groove and the shaft sleeve.

[0015] Preferably, the meshing support gears on the rack bracket are set to two or three, and the corresponding support rods installed on the front and rear support gears are also set to two or three. The inkjet printer is installed on the two or three support rods, and support frames are respectively installed on the two ends of the support rods, and a driving servo motor is also installed on one end of one of the support rods.

[0016] Preferably, a holder is also installed on the top of the support frame, a limit shaft seat is installed on the holder by screws, a limit slide rod is slidably sleeved in the limit shaft seat, and the limit slide rod is installed between the two protective baffles.

[0017] Preferably, a replaceable nozzle assembly is installed on the bottom of the inkjet printer, and a plurality of storage ink cartridges are arranged on the top of the inkjet printer. The storage ink cartridges are connected with ink tubes, and inks of different colors can be stored in the storage ink cartridges.

[0018] Preferably, a sprocket is installed on the end of the active roller shaft extending outside the guide rail frame, and the same chain is installed for transmission on a plurality of sprockets, and an extrusion sprocket is installed for transmission below the chain.

[0019] Preferably, a driving gear is installed on the outer side of the guide rail frame, a driving motor is installed on the central axis of the driving gear, and a passive gear is also mounted on the active roller shaft close to the driving gear, and the passive gear meshes with the driving gear.

[0020] In summary, the present invention includes the following beneficial technical effects:

[0021] 1. In the present application, the inkjet printer is installed on the rack bracket by the cooperation of the support rod and the support gear. The position of the inkjet printer can be adjusted by pushing the support gear to roll on the rack bracket. In addition, the two adjustment plates can be set to adjust the adaptive position according to the position of the cardboard, and the position of the inkjet printer can be changed by the cooperation of the linkage parts, so as to ensure that the inkjet coding processing is carried out at a fixed position of the cardboard, which is relatively neat, and the adjustment plate can be adaptively adjusted according to the position of the cardboard, and automatically adapt, which is convenient for improving the processing efficiency.

[0022] 2. In the present application, adaptive adjustment can be performed by installing a support frame and a driving servo motor on one end of the support shaft to change the initial position of the inkjet printer corresponding to the cardboard, thereby changing the position of printing on the cardboard.

[0023] 3. The linkage component set between the trigger adjustment component and the printing component in the present application can also change the matching position. After the initial position of the inkjet printer is changed, the different positions on the trigger guide frame can be matched through the bolt parts, thereby ensuring the uniformity of the subsequent printing positions on the cardboard.

[0024] 4. In the present application, the side baffles and the oblique baffles are mainly hingedly mounted on the adjustment plate, which facilitates the adaptive adjustment of the side baffles according to the position of the cardboard, and facilitates the side baffles to change with the position of the cardboard, which is easier to coordinate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the transmission assembly in the present invention;

[0027] Figure 3 is a top view schematic diagram of the internal structure of the protective baffle of the present invention;

[0028] Figure 4 It is a bottom view schematic diagram of the internal structure of the protective baffle of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the printing component and the linkage component of the present invention;

[0030] Figure 6 It is an exploded schematic diagram of the printing component of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the trigger adjustment component of the present invention;

[0032] Figure 8 It is a partial schematic diagram of the trigger adjustment component of the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the linkage component of the present invention;

[0034] Fig.10 yes Figure 6 Schematic diagram of the structure enlarged at point A in the middle.

[0035] Description of reference numerals: 1. guide rail frame; 101. active roller shaft; 102. driven roller shaft; 103. rubber driving wheel; 104. sprocket; 105. chain; 106. passive gear; 107. active gear; 108. driving motor; 109. extrusion sprocket; 2. protective baffle; 21. printing component; 2101. rack bracket; 2102. supporting gear; 2103. supporting rod; 2104. inkjet printer; 2105. replaceable nozzle assembly; 2106. storage cartridge; 2107. ink tube; 2108. support frame; 2109. holder; 2110. limit shaft seat; 2111. Limit slide bar; 22, trigger adjustment component; 2201, adjustment screw; 2202, adjustment plate; 2203, fixing bolt sleeve; 2204, inclined baffle; 2205, side baffle; 2206, embedded groove; 2207, shaft sleeve; 2208, hinge shaft; 2209, torsion spring; 2210, trigger rod; 2211, telescopic frame; 2212, trigger guide frame; 2213, bolt rod; 2214, slide groove; 2215, guide rail; 2216, bolt hole; 23, linkage component; 2301, linkage rack; 2302, positioning guide rod; 2304, linkage rod; 2305, fixing sleeve. DETAILED DESCRIPTION

[0036] The following is combined with Figures 1 to 10 The present invention is described in further detail.

[0037] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0038] Embodiment 1

[0039] The present invention discloses a printing device for paperboard production. Figures 1 to 10 A printing device for cardboard production includes a guide frame 1, a transmission assembly is arranged in the guide frame 1, and a protective baffle 2 is installed on the top of the guide frame 1. The transmission assembly in the guide frame 1 includes a driving roller 101 arranged in an upper row and a driven roller 102 arranged in a lower row. The driving roller 101 and the driven roller 102 are both equipped with a plurality of rubber transmission wheels 103, which are convenient for cooperating in conveying cardboard. A sprocket 104 is also installed on the end of the driving roller 101 extending outside the guide frame 1, and the same chain 105 is installed on several sprockets 104 for transmission. An extrusion sprocket 109 is also installed for transmission below the chain 105. A driving gear 107 is also installed on the outer side of the guide frame 1. A driving motor 108 is installed on the central axis of the gear 107, and a passive gear 106 is also mounted on the active roller shaft 101 close to the active gear 107. The passive gear 106 meshes with the active gear 107. When working, the driving motor 108 can drive the active gear 107 to rotate, and the corresponding active roller shaft 101 can be driven to rotate through the cooperation of the active gear 107 and the passive gear 106. In addition, since sprockets 104 are installed on the ends of the active roller shafts 101, and with the cooperation of the same chain 105, multiple active roller shafts 101 can be kept rotating synchronously in the same direction. When the active roller shaft 101 rotates, the rubber transmission wheel 103 arranged thereon can push the cardboard forward, which is convenient for feeding.

[0040] Reference Figure 5 , 69. A printing component 21 is provided in the protective baffle 2. The printing component 21 includes two rack brackets 2101. Support gears 2102 are meshed and installed on the two rack brackets 2101. Support rods 2103 are mounted on the front and rear support gears 2102. A printer 2104 is installed on the middle part of the support rods 2103 for printing on the cardboard. Specifically, the number of meshed support gears 2102 on the rack brackets 2101 is two or three, and the number of support rods 2103 installed on the corresponding front and rear support gears 2102 is also two or three. The printer 2104 is installed on two or three support rods 2103. Support frames 2108 are respectively installed on the two ends of the support rods 2103, and a driving servo motor is also installed on one end of one of the support rods 2103.

[0041] Specifically, the inkjet printer 2104 may use a Videojet-2120 large character inkjet printer. An interchangeable nozzle assembly 2105 is installed on the bottom of the inkjet printer 2104. A plurality of ink storage cartridges 2106 are also arranged on the top of the inkjet printer 2104. The ink storage cartridges 2106 are connected with ink tubes 2107. Inks of different colors can be stored in the ink storage cartridges 2106. Inks of different color categories can be stored in the ink tubes 2107. Ink can be sprayed onto the paperboard through the interchangeable nozzle assembly 2105. The inkjet printer 2104 is arranged on the rack bracket 2101 through the support rod 2103 and the support gear 2102. When the support gear 2102 meshes and rolls on the rack bracket 2101, the position of the inkjet printer 2104 can be adjusted. The driving servo motor can be connected to push the support gear 2102 to rotate, thereby changing the initial position of the inkjet printer 2104, which is convenient for printing at the corresponding position of the cardboard. A trigger guide 2212 is also installed on the side baffle 2205, and a trigger guide 2212 is provided on the trigger guide 2212 to cooperate with changing the inkjet printer 2 The linkage component 23 at the position of 104 includes a linkage rack 2301 arranged above the rack bracket 2101, a positioning guide rod 2302 is also installed through the linkage rack 2301, and the positioning guide rod 2302 is installed between the two protective baffles 2. The linkage rack 2301 is meshed with the supporting gear 2102 matched on the rack bracket 2101. A linkage rod 2304 is also installed on the linkage rack 2301 in the direction facing the trigger adjustment component 22, and a fixing sleeve 2305 is also installed on the end of the linkage rod 2304. There are fixing plates extending on both sides, and bolts are installed on the fixing plates. A plurality of bolt holes 2216 for matching bolts are equidistantly provided on the trigger guide 2212. When the servo motor is driven to push the support gear 2102 to rotate and change the position of the inkjet printer 2104, the linkage rack 2301 will slide with the cooperation of the support gear 2102, thereby changing the position of the linkage rod 2304. At this time, the fixing sleeve 2305 on the linkage rod 2304 is fixed to the trigger guide 2212 by bolts, so that printing can be performed at the same position of the cardboard, which is easy to adjust.

[0042] Reference Figure 6 , 10A holder 2109 is also installed on the top of the support frame 2108, and a limited shaft seat 2110 is installed on the holder 2109 by screws. A limited slide bar 2111 is slidably mounted in the limited shaft seat 2110, and the limited slide bar 2111 is installed between the two protective baffles 2. Specifically, the limited shaft seat 2110 can also be installed on the holder 2109 by screws, and the support frame 2108 can be limited by the cooperation of the limited shaft seat 2110 and the limited slide bar 2111, thereby ensuring that the supporting gear 2102 is always engaged with the rack bracket 2101 to maintain the stability of the inkjet printer 2104, and the limited shaft seat 2110 installed by screws can be easily disassembled, so as to facilitate the replacement and maintenance of the inkjet printer 2104.

[0043] Embodiment 2

[0044] Reference Figure 4 , 7 8. On the basis of the first embodiment, a trigger adjustment component 22 is further provided in the protective baffle 2, and the trigger adjustment component 22 includes two adjustment plates 2202, and an inclined baffle 2204 is movably installed on the side of the adjustment plate 2202. A side baffle 2205 is also installed on the free end of the inclined baffle 2204, which is used to fit on both sides of the cardboard and trigger the change of the position of the inkjet printer 2104, so as to facilitate the inkjet processing at the fixed position of the cardboard, and the trigger adjustment component 22 also includes an adjustment screw 2201 installed between the two protective baffles 2, and the adjustment plate 2202 is slidably mounted on the adjustment screw 2201, and fixed bolt sleeves 2203 are also installed on both sides of the adjustment plate 2202, and the fixed bolt sleeves 2203 are threadedly mounted on the adjustment screw 2201;

[0045] Specifically, the two side baffles 2205 can be attached to the two sides of the cardboard. When the positions of different cardboards are offset, the side baffles 2205 can also be displaced and changed accordingly. In order to match the width of the cardboard, the fixing bolt sleeve 2203 can be loosened to push the adjustment plate 2202 to slide on the adjustment screw 2201, thereby changing the distance between the side baffles to facilitate the close attachment of the cardboard. In addition, when the distance between the two side baffles 2205 changes, bolt rods 2213 are rotatably installed on the two ends of the trigger guide frame 2212, and a telescopic frame 2211 is installed on the bolt rod 2213. The telescopic frame 2211 is threadedly matched with the bolt rod 2213, and two sides of the telescopic frame 2211 are provided with A slide groove 2214 is provided, and guide bars 2215 extend outward from both ends of the trigger guide frame 2212. The guide bars 2215 are slidably inserted in the slide groove 2214. A trigger rod 2210 is also rotatably installed at the bottom of the telescopic frame 2211. The trigger rod 2210 is fixedly connected to the top of the side baffle 2205. By screwing the bolt rod 2213, the telescopic frame 2211 can be pushed close to the trigger guide frame 2212, so that the length can be kept the same as the spacing between the two side baffles 2205. When the displacement of the side baffle 2205 changes, the trigger guide frame 2212 can be pushed synchronously to change accordingly, and with the cooperation of the linkage component 23, the position of the inkjet printer 2104 can be conveniently changed to facilitate the printing operation.

[0046] Embodiment 3

[0047] Reference Figure 8 On the basis of the second embodiment, a connection method of the inclined baffle 2204 is disclosed, specifically: an embedded groove 2206 is further opened on the side of the adjusting plate 2202, a shaft sleeve 2207 is installed on the front end of the inclined baffle 2204, a hinge shaft 2208 is rotatably installed in the shaft sleeve 2207, and the hinge shaft 2208 is rotatably installed in the embedded groove 2206. The upper and lower ends of the hinge shaft 2208 are also sleeved with torsion springs 2209, and the two ends of the torsion spring 2209 are respectively restricted on the embedded groove 2206 and the shaft sleeve 2207. When working, the front end of the inclined baffle 2204 is installed with a hinge shaft 2208 through the shaft sleeve 2207, and the hinge shaft 2208 is installed in the embedded groove 2206 on the side of the adjusting plate 2202. 206, the inclined baffle 2204 can swing around the hinge shaft 2208. After the spacing between the two side baffles 2205 is adjusted, the spacing between the two side baffles 2205 will always be the same width as the cardboard. During the transportation of different cardboards, when the position of the cardboard shifts, the side baffle 2205 will also change its position, thereby changing the angle of the inclined baffle 2204 to facilitate continued adhesion with the cardboard. After the position of the side baffle 2205 is changed, it can act on the trigger guide 2212 to change the position of the trigger guide 2212. Through the cooperation of the linkage component 23, the position of the inkjet printer 2104 can be adaptively changed to facilitate printing operations at the same position of the cardboard.

[0048] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0049] The implementation principle of the printing device for cardboard production in the embodiment of the present invention is as follows: when working, with the cooperation of the driving motor 108, the driving gear 107 can be conveniently driven to rotate, and with the cooperation of the driving gear 107 and the driven gear 106, a corresponding driving roller 101 can be driven to rotate. In addition, since sprockets 104 are installed on the ends of multiple driving rollers 101, and the same chain 105 is installed on the multiple sprockets 104 for transmission, it can ensure that the multiple driving rollers 101 rotate synchronously in the same direction. When the driving roller 101 rotates, the rubber transmission wheel 103 provided on the driving roller 101 and the driven roller 102 cooperates, so that the cardboard can be continuously conveyed, which is convenient for subsequent printing operations;

[0050] The cardboard conveyed in the guide frame 1 will inevitably be offset. When conveying the cardboard, the side baffles 2205 will be attached to the two sides of the cardboard under the support of the inclined baffles 2204, and the side baffles 2205 are connected to the telescopic frames 2211 through the trigger rods 2210. The telescopic frames 2211 are installed at both ends of the trigger guide frame 2212. The trigger guide frame 2212 is provided with a plurality of bolt holes 2216 for matching bolts, which can be conveniently matched with the fixing sleeve 2305 to fix the linkage rod 2304 on the trigger guide frame 2212, and the other end of the linkage rod 2304 is fixed to the trigger guide frame 2212. One end is connected with a linkage rack 2301, which can mesh with the support gear 2102, and can cooperate to push the support gear 2102 to roll on the rack bracket 2101, so as to adjust the position of the inkjet printer 2104. When the position of the subsequent cardboard is offset, the side baffle 2205 will follow the position change of the cardboard. At this time, the trigger guide 2212 will move and change together with the cooperation of the trigger rod 2210, and the set linkage rod 2304 will push the linkage rack 2301 to slide, thereby changing the position of the inkjet printer 2104, which is convenient for printing on the cardboard;

[0051] When printing is required at different positions of the cardboard, the fixing sleeve 2305 can be loosened first, and the driving servo motor can be started. With the cooperation of the driving servo motor, the support rod 2103 can be rotated, and the supporting gear 2102 can also be pushed to rotate. At this time, the fixing sleeve 2305 is separated from the trigger guide 2212. After the position of the inkjet printer 2104 is changed, the linkage rod 2304 is fixed to the trigger guide 2212. When the position of the trigger guide 2212 is changed, the position of the inkjet printer 2104 can also be changed. At this time, the inkjet printer 2104 changes the position of the corresponding cardboard through the cooperation of the driving servo motor, and can print at different positions of the cardboard;

[0052] Furthermore, when it is necessary to print on cardboards of different widths, the position of the adjustment plate 2202 on the adjustment screw 2201 can be changed to change the distance between the two side baffles 2205, so that the distance between the two side baffles 2205 can be the same as the width of the cardboard. At this time, the bolt rod 2213 can be loosened, and the position of the telescopic frame 2211 can be changed with the thread cooperation of the telescopic frame 2211 and the bolt rod 2213, so that the length of the trigger guide frame 2212 plus the two telescopic frames 2211 is the same as the distance between the two side baffles 2205. At this time, when the side baffle 2205 changes with the displacement of the cardboard, the trigger guide frame 2212 will change together, and then the position of the inkjet printer 2104 can be changed synchronously, which is convenient for printing operations on the same position of the cardboard.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A printing device for cardboard production, characterized in that: The invention comprises a guide rail frame (1), a transmission component is arranged in the guide rail frame (1), a protective baffle (2) is installed on the top of the guide rail frame (1), and a printing component (21) and a trigger adjustment component (22) are arranged in the protective baffle (2): The printing component (21) comprises two rack brackets (2101), the two rack brackets (2101) are meshed with support gears (2102), the front and rear support gears (2102) are sleeved with support rods (2103), and a printer (2104) is installed in the middle of the support rods (2103) for printing on cardboard; The trigger adjustment component (22) includes two adjustment plates (2202), and a slanted baffle (2204) is movably installed on the side of the adjustment plate (2202). A side baffle (2205) is also installed on the free end of the slanted baffle (2204) for fitting on both sides of the paperboard and triggering the change of the position of the inkjet printer (2104), so as to facilitate inkjet processing at a fixed position of the paperboard. A trigger guide frame (2212) is also installed on the side baffle (2205), and a linkage component (23) for cooperating with changing the position of the inkjet printer (2104) is arranged on the trigger guide frame (2212). The transmission assembly in the guide frame (1) includes an active roller shaft (101) arranged in an upper row and a driven roller shaft (102) arranged in a lower row. The active roller shaft (101) and the driven roller shaft (102) are both provided with a plurality of rubber transmission wheels (103) to facilitate the transportation of cardboard.

2. The printing device for cardboard production according to claim 1, characterized in that: The linkage component (23) includes a linkage rack (2301) arranged above the rack bracket (2101), the linkage rack (2301) meshing with a supporting gear (2102) on the rack bracket (2101), a linkage rod (2304) is also installed on the linkage rack (2301) in the direction facing the trigger adjustment component (22), a fixing sleeve (2305) is also mounted on the end of the linkage rod (2304), fixing plates extend from both sides of the fixing sleeve (2305), and bolts are installed on the fixing plates, and a plurality of bolt holes (2216) for matching the bolts are equidistantly provided on the trigger guide frame (2212).

3. The printing device for cardboard production according to claim 2, characterized in that: Bolt rods (2213) are rotatably mounted on both ends of the trigger guide frame (2212), and a telescopic frame (2211) is mounted on the bolt rod (2213). The telescopic frame (2211) and the bolt rod (2213) are threadedly matched, and slide grooves (2214) are arranged on both sides of the telescopic frame (2211). Guide rails (2215) extend outward from both ends of the trigger guide frame (2212), and the guide rails (2215) are slidably inserted in the slide grooves (2214). A trigger rod (2210) is also rotatably mounted on the bottom of the telescopic frame (2211), and the trigger rod (2210) is fixedly connected to the top of the side baffle (2205).

4. The printing device for cardboard production according to claim 1, characterized in that: The trigger adjustment component (22) further comprises an adjustment screw (2201) installed between the two protective baffles (2), the adjustment plate (2202) is slidably mounted on the adjustment screw (2201), and fixing bolt sleeves (2203) are also installed on both sides of the adjustment plate (2202), and the fixing bolt sleeves (2203) are threadedly mounted on the adjustment screw (2201).

5. The printing device for cardboard production according to claim 4, characterized in that: The side of the adjustment plate (2202) is also provided with an embedded groove (2206), and a shaft sleeve (2207) is installed on the front end of the inclined baffle (2204). A hinge shaft (2208) is rotatably installed in the shaft sleeve (2207). The hinge shaft (2208) is rotatably installed in the embedded groove (2206). The upper and lower ends of the hinge shaft (2208) are also provided with torsion springs (2209), and the two ends of the torsion spring (2209) are respectively restricted on the embedded groove (2206) and the shaft sleeve (2207).

6. The printing device for cardboard production according to claim 1, characterized in that: The number of meshing support gears (2102) on the rack bracket (2101) is set to two or three, and the number of support rods (2103) installed on the corresponding front and rear support gears (2102) is also set to two or three, the inkjet printer (2104) is installed on the two or three support rods (2103), and support frames (2108) are respectively installed on the two ends of the support rods (2103), and a driving servo motor is also installed on one end of one of the support rods (2103).

7. A printing device for cardboard production according to claim 1 or 6, characterized in that: A holder (2109) is also installed on the top of the support frame (2108), and a limit shaft seat (2110) is installed on the holder (2109) by means of screws. A limit slide bar (2111) is slidably mounted in the limit shaft seat (2110), and the limit slide bar (2111) is installed between the two protective baffles (2).

8. The printing device for cardboard production according to claim 1, characterized in that: A replaceable nozzle assembly (2105) is installed on the bottom of the inkjet printer (2104), and a plurality of ink storage cartridges (2106) are also arranged on the top of the inkjet printer (2104). The ink storage cartridges (2106) are connected to ink tubes (2107), and inks of different colors can be stored in the ink storage cartridges (2106).

9. The printing device for cardboard production according to claim 1, characterized in that: A sprocket (104) is also installed on the end of the active roller shaft (101) extending outside the guide rail frame (1), and a plurality of sprockets (104) are driven and installed with a same chain (105), and an extrusion sprocket (109) is also driven and installed below the chain (105).

10. The printing device for cardboard production according to claim 9, characterized in that: A driving gear (107) is also installed on the outer side of the guide rail frame (1), a driving motor (108) is installed on the central axis of the driving gear (107), and a passive gear (106) is also mounted on the active roller shaft (101) close to the driving gear (107), and the passive gear (106) is meshed with the driving gear (107).

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