Carton printing device with positioning function

By combining the carton raw material positioning component and the limiting conveying component, the problem of carton printing positioning error is solved, achieving precise positioning and stable transportation of cartons, and improving printing accuracy and production efficiency.

CN122058641APending Publication Date: 2026-05-19CHONGQING RUIFENG AIRPORT PACKAGING MATERIALS SALES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING RUIFENG AIRPORT PACKAGING MATERIALS SALES CO LTD
Filing Date
2026-04-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing technologies, the positioning of cardboard box raw materials during printing is inaccurate due to the inability to position them precisely during feeding, resulting in positioning errors that affect printing accuracy and production efficiency.

Method used

The system employs a combination of a carton material positioning component and a limiting conveyor component. By cooperating with a synchronously adjusting handwheel and a sliding base, precise positioning of the carton is achieved. Furthermore, the combination of a printing conveyor belt and a floating pressure roller ensures stable transportation and printing accuracy.

Benefits of technology

It enables precise positioning and stable transportation of cardboard boxes, improves printing accuracy and production efficiency, and reduces waste emissions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a carton printing device with a positioning function, and relates to the technical field of carton printing positioning, the carton printing device comprises a device conveying base station, a carton raw material positioning assembly for positioning feeding is arranged at one end of the device conveying base station, and a limiting conveying assembly is further arranged at one end of the device conveying base station; a printing control host is arranged in the middle of the device conveying base table, a carton printer is arranged at the inner end of the printing control host, and a printing protective cover is arranged at the upper end of the carton printer. Stacked cartons are placed on the carton raw material positioning assembly, single pieces separated from carton piles are stably conveyed through the limiting conveying assembly, then the single pieces are positioned by the printing conveying limiting frame and printed by the carton printer, and a positioning structure is transited; and the positioning effect between the carton raw material positioning assembly and the limiting conveying assembly is matched.
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Description

Technical Field

[0001] This invention relates to the field of carton printing positioning technology, specifically to a carton printing device with positioning function. Background Technology

[0002] Corrugated cardboard has the advantages of being inexpensive and having adequate structural strength, and is commonly used as a board material for making packaging boxes. When making corrugated boxes, patterns need to be printed on the corrugated cardboard to ensure the appearance of the packaging boxes. For example, the invention disclosed in application number CN202311192360.1 is a high-efficiency and environmentally friendly corrugated cardboard printing device. This invention relates to the field of corrugated cardboard printing fixture technology. The frame is fixedly mounted on a base, the worktable is mounted inside the frame, the printing press is mounted above the worktable, the board positioning mechanism is mounted on the frame and above the worktable, the printing mounting frame is spun onto the upper left side plate of the frame via a rotating shaft, the printing press is fixedly mounted on the printing mounting frame, the printing rotary cylinder is fixedly mounted on the frame, and the output shaft of the printing rotary cylinder is connected to the rotating shaft of the printing mounting frame. The unloading mechanism is located inside the frame. By setting a fixture that can accurately position the substrate, and by configuring the positioning fixture and printing fixture as a rotatable movable structure, it facilitates accurate positioning and printing of patterns during corrugated cardboard printing, thereby reducing subsequent cutting and waste disposal processes, improving printing production efficiency, and reducing waste emissions.

[0003] However, in the actual implementation of the above-mentioned technical solution, during the printing positioning process, the carton raw material cannot be positioned and aligned during the feeding process. As a result, even if it is repositioned when it enters the printing position, the positioning effect will still have errors. The positioning structure is disconnected, causing the positioning structure to fail. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a carton printing device with positioning function, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a carton printing device with positioning function, comprising a device transport base, a carton raw material positioning component for positioning and feeding is provided at one end of the device transport base, a limiting conveying component is also provided at one end of the device transport base, a printing control host is provided in the middle of the device transport base, a carton printer is provided inside the printing control host, and a printing protective cover is provided on the upper end of the carton printer.

[0006] Preferably, the device transport base is provided with a printing transport belt in the middle, and adjustable distance printing transport limiting frames are provided on both sides of the inner wall of the device transport base and above the printing transport belt.

[0007] Preferably, the rear end of the transport base of the device is provided with a discharge conveyor, the discharge conveyor is provided with a number of finished product conveying rollers, and the lower end of the discharge conveyor is provided with a number of conveyor support columns.

[0008] Preferably, an operating table is fixedly installed on the side of the printing control host, and an operating display screen for editing printing formats is provided on the operating table.

[0009] Preferably, the carton raw material positioning assembly includes: a positioning assembly platform, a feeding operation platform, a feeding conveyor roller, a width positioning support column, a bidirectional screw mounting frame, a synchronous bidirectional screw, a synchronous adjustment handwheel, a single-piece feeding adjustment assembly, a positioning side plate sliding rail, a side plate sliding base, a sliding base upper screw sleeve, and a cardboard positioning side plate.

[0010] The positioning component platform is connected to the end face of the device transport base. The upper end of the positioning component platform is integrally provided with a feeding operation platform. The upper end of the feeding operation platform is fixedly installed with a width positioning support column. Several feeding conveying rollers are arranged between the feeding operation platforms. A bidirectional screw mounting frame is provided on the upper end of the width positioning support column. A synchronous bidirectional screw is rotatably installed between the bidirectional screw mounting frames. A synchronous adjustment handwheel is coaxially fixedly installed on one end of the synchronous bidirectional screw.

[0011] A positioning side plate sliding rail is fixedly connected between the width positioning support columns. A single-piece feeding adjustment component is fixedly installed in the middle of the positioning side plate sliding rail. Side plate sliding bases are slidably arranged on the positioning side plate sliding rail and on both sides of the single-piece feeding adjustment component. A cardboard positioning side plate is integrally arranged on the side of the side plate sliding base. A sliding base upper screw sleeve is integrally arranged on the synchronous bidirectional screw.

[0012] Preferably, a feeding positioning push plate is slidably arranged on the positioning component platform, and a positioning push plate base is integrally provided at the lower end of the feeding positioning push plate, and a base spring rod is fixedly connected to the rear end of the positioning push plate base.

[0013] A spring top sleeve is fixedly installed on the lower end of the positioning component, which is fitted onto the spring rod of the base. A spring fixing plate is integrally provided at the end of the spring rod of the base, and a push plate top spring is provided between the spring fixing plate and the spring top sleeve.

[0014] Preferably, the single-piece feeding adjustment assembly includes: an adjustment assembly base, a bidirectional screw through hole, a single-piece adjustment slide, a single-piece top plate groove, a single-piece right-angle top plate, a top plate connecting rod, and a fixing screw hole;

[0015] The adjustment component base is connected between the positioning side plate sliding rails. The upper end of the adjustment component base is provided with a bidirectional screw through hole, and the lower end of the adjustment component base is provided with a single-piece top plate groove. A single-piece adjustment slide groove is provided in the single-piece top plate groove, and a single-piece right-angle top plate is slidably arranged in the single-piece top plate groove.

[0016] The single right-angle top plate has an integrated top plate connecting rod at its rear end and located within the single adjustment groove, and the rear end of the top plate connecting rod has a fixing screw hole.

[0017] Preferably, a fixing bolt is provided in the fixing screw hole.

[0018] Preferably, the limiting conveying assembly includes: a conveying assembly housing, a housing fixing frame, a pressure roller top housing, a pressure roller top cover, a pressure roller bracket, a floating pressure roller, and a pressure roller top spring;

[0019] The device has a housing fixing frame between the inner walls of the transport base, and a conveying component housing between the housing fixing frames. A pressure roller top shell is provided at the lower end of the upper inner wall of the conveying component housing. A pressure roller top cover is slidably provided inside the pressure roller top shell. A pressure roller bracket is integrally provided at the lower end of the pressure roller top cover. A floating pressure roller is rotatably installed at the lower end of the pressure roller bracket. A pressure roller top spring is provided at the upper end of the pressure roller top cover.

[0020] Preferably, a fixed roller is fixedly installed inside the outer casing frame.

[0021] This invention provides a carton printing apparatus with a positioning function. It has the following advantages:

[0022] (1) The present invention places the stacked cartons on the carton material positioning component and transports the individual pieces separated from the carton stack stably through the limiting conveying component. Then, the printed transport limiting frame is positioned and printed by the carton printer to transition the positioning structure. This works in conjunction with the positioning effect between the carton material positioning component and the limiting conveying component.

[0023] (2) The present invention inputs the printed graphic into the printing control host through the operation display screen, controls the printing conveyor belt to transport the graphic, and prints it through the carton printer.

[0024] (3) In this invention, the stacked cartons are placed on the feeding conveyor roller, and then the synchronous adjustment handwheel is rotated to drive the synchronous bidirectional screw to rotate. In conjunction with the screw sleeve on the sliding base, the cardboard positioning side plate on the side of the sliding base moves synchronously to position the carton stack. Then, the feeding positioning push plate at the rear end presses the carton stack against the inner end face of the single feeding adjustment component. The push plate top spring presses against the spring fixing plate, and the base spring through rod is pulled to clamp and position it, without hindering the carton stack from decreasing downward.

[0025] (4) By rotating the fixing bolt, the top plate connecting rod slides in the single-piece adjustment groove, thereby enabling the single right-angle top plate to slide in the single-piece top plate groove, so that the lower end of the single right-angle top plate can adapt to corrugated cardboard boxes of different thicknesses, allowing the single piece to pass through.

[0026] (5) When a single carton enters the lower part of the conveyor assembly housing, the present invention uses a printed conveyor belt in conjunction with a floating pressure roller to ensure stable transport after positioning. The upper pressure roller top spring presses the lower pressure roller cover and pressure roller bracket. When the material is fed in overlapping layers, the thickness increases, which presses the pressure roller top spring, causing the upper carton to contact the fixed roller, thus offsetting the overlapping upper carton and ensuring single-piece feeding. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the cardboard box raw material positioning component in this invention;

[0030] Figure 4 This is a schematic diagram of the structure of the cardboard box raw material positioning component from another perspective in this invention;

[0031] Figure 5 This is a schematic diagram of the structure of the single-piece feeding adjustment assembly in this invention;

[0032] Figure 6 This is a side view of the single-piece feeding adjustment assembly in this invention.

[0033] Figure 7 For the present invention Figure 6 Schematic diagram of the cross-sectional structure of line aa in the middle;

[0034] Figure 8 This is a schematic diagram of the structure of the limiting transmission component in this invention;

[0035] Figure 9 This is a side view of the structure of the limiting transmission component in this invention;

[0036] Figure 10 For the present invention Figure 9 A schematic diagram of the cross-sectional structure of the middle bb line.

[0037] The components include: 1. Equipment transport base; 2. Printing control host; 3. Carton raw material positioning assembly; 301. Positioning assembly platform; 302. Feeding operation platform; 303. Feeding conveyor roller; 304. Feeding positioning push plate; 305. Width positioning support column; 306. Bidirectional screw mounting bracket; 307. Synchronous bidirectional screw; 308. Synchronous adjustment handwheel; 309. Single-piece feeding adjustment assembly; 3091. Adjustment assembly base; 3092. Bidirectional screw through hole; 3093. Single-piece adjustment slide; 3094. Single-piece top plate groove; 3095. Single-piece right-angle top plate; 3096. Top plate connecting rod; 3097. Fixing screw hole; 3098. Fixing bolt; 310. Positioning side plate sliding rail; 311. Side plate sliding... 312. Sliding base with threaded sleeve; 313. Cardboard positioning side plate; 314. Positioning push plate base; 315. Base spring rod; 316. Spring fixing plate; 317. Spring top sleeve; 318. Push plate top spring; 4. Restricting conveyor assembly; 401. Conveyor assembly housing; 402. Housing fixing frame; 403. Fixed roller; 404. Pressure roller top shell; 405. Pressure roller top cover; 406. Pressure roller bracket; 407. Floating pressure roller; 408. Pressure roller top spring; 5. Carton printer; 6. Printing protective cover; 7. Discharge conveyor; 8. Finished product conveyor roller; 9. Conveyor support column; 10. Operating table; 11. Operating display screen; 12. Printing conveyor belt; 13. Printing conveyor limit frame. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 2As shown, this embodiment of the invention provides a carton printing device with positioning function, including a device transport base 1. A carton raw material positioning component 3 for positioning and feeding is provided at one end of the device transport base 1. A limiting conveying component 4 is also provided at one end of the device transport base 1. A printing control host 2 is provided in the middle of the device transport base 1. A carton printer 5 is provided inside the printing control host 2. A printing protective cover 6 is provided on the upper end of the carton printer 5. A printing conveyor belt 12 is provided in the middle of the device transport base 1. Adjustable distance printing conveying limiting frames 13 are provided on both sides of the inner wall of the device transport base 1 and above the printing conveyor belt 12. An output conveyor 7 is provided at the rear end of the device transport base 1. Several finished product conveying rollers 8 are provided inside the output conveyor 7. Several conveyor support columns 9 are provided at the lower end of the output conveyor 7. An operating table 10 is fixedly installed on the side of the printing control host 2. An operation display screen 11 for editing printing formats is provided on the operating table 10.

[0040] In the above technical solution, the stacked cartons are placed on the carton material positioning component 3, and the individual pieces separated from the carton stack are stably transported by the limiting conveying component 4. Then, they are positioned by the printed transport limiting frame 13 and printed by the carton printer 5 to transition the positioning structure, which works in conjunction with the positioning effect between the carton material positioning component 3 and the limiting conveying component 4.

[0041] The graphic to be printed is input into the printing control host 2 by operating the display screen 11, and the printing conveyor belt 12 is controlled to transport the graphic, which is then printed by the carton printer 5.

[0042] like Figure 1 , Figures 3 to 4As shown, the carton raw material positioning assembly 3 includes: a positioning assembly platform 301, a feeding operating platform 302, a feeding conveyor roller 303, a width positioning support column 305, a bidirectional screw mounting bracket 306, a synchronous bidirectional screw 307, a synchronous adjustment handwheel 308, a single-piece feeding adjustment assembly 309, a positioning side plate sliding rail 310, a side plate sliding base 311, a sliding base upper screw sleeve 312, and a cardboard positioning side plate 313; the positioning assembly platform 301 is connected to the end face of the device transport base 1, and the positioning assembly platform 3... 01. An integrated feeding operating platform 302 is provided at the upper end. A width positioning support column 305 is fixedly installed on the upper end of the feeding operating platform 302. Several feeding conveyor rollers 303 are arranged between the feeding operating platforms 302. A bidirectional screw mounting bracket 306 is provided on the upper end of the width positioning support column 305. A synchronous bidirectional screw 307 is rotatably installed between the bidirectional screw mounting brackets 306. A synchronous adjusting handwheel 308 is coaxially fixedly installed on one end of the synchronous bidirectional screw 307. The width positioning support column 305... A positioning side plate sliding rail 310 is fixedly connected between 5. A single-piece feeding adjustment component 309 is fixedly installed in the middle of the positioning side plate sliding rail 310. Side plate sliding bases 311 are slidably arranged on the positioning side plate sliding rail 310 and on both sides of the single-piece feeding adjustment component 309. A cardboard positioning side plate 313 is integrally provided on the side of the side plate sliding base 311. A sliding base upper screw sleeve 312 is integrally provided on the upper end of the side plate sliding base 311 and is fitted onto the synchronous bidirectional screw 307. The positioning group A feeding positioning push plate 304 is slidably mounted on the worktable 301. A positioning push plate base 314 is integrally mounted at the lower end of the feeding positioning push plate 304. A base spring rod 315 is fixedly connected to the rear end of the positioning push plate base 314. A spring top sleeve 317 is fixedly mounted on the lower end of the positioning assembly table 301 and is fitted onto the base spring rod 315. A spring fixing plate 316 is integrally mounted at the end of the base spring rod 315. A push plate top spring 318 is provided between the spring fixing plate 316 and the spring top sleeve 317.

[0043] In the above technical solution, the stacked cartons are placed on the feeding conveyor roller 303, and then the synchronous adjustment handwheel 308 is rotated to drive the synchronous bidirectional screw 307 to rotate. In conjunction with the screw sleeve 312 on the sliding base, the cardboard positioning side plate 313 on the side of the side plate sliding base 311 moves synchronously to position the carton stack. Then, the feeding positioning push plate 304 at the rear end presses the carton stack against the inner end face of the single feeding adjustment component 309. The push plate top spring 318 presses against the spring fixing plate 316, and pulls the base spring through rod 315 to clamp and position it, without hindering the downward reduction of the carton stack.

[0044] like Figure 3 , Figures 5 to 7As shown, the single-piece feeding adjustment assembly 309 includes: an adjustment assembly base 3091, a bidirectional screw through hole 3092, a single-piece adjustment slide groove 3093, a single-piece top plate groove 3094, a single-piece right-angle top plate 3095, a top plate connecting rod 3096, and a fixing screw hole 3097; the adjustment assembly base 3091 is connected between the positioning side plate sliding rails 310, and the upper end of the adjustment assembly base 3091 is provided with a bidirectional screw through hole 3092. The lower end is provided with a single-piece top plate groove 3094, and a single-piece adjusting slide groove 3093 is provided in the single-piece top plate groove 3094. A single-piece right-angle top plate 3095 is slidably arranged in the single-piece top plate groove 3094. A top plate connecting rod 3096 is integrally provided at the rear end of the single-piece right-angle top plate 3095 and located in the single-piece adjusting slide groove 3093. A fixing screw hole 3097 is provided at the rear end of the top plate connecting rod 3096, and a fixing bolt 3098 is provided in the fixing screw hole 3097.

[0045] In the above technical solution, by rotating the fixing bolt 3098, the top plate connecting rod 3096 slides in the single-piece adjusting groove 3093, thereby enabling the single right-angle top plate 3095 to slide in the single-piece top plate groove 3094, so that the lower end of the single right-angle top plate 3095 can adapt to corrugated cardboard boxes of different thicknesses, allowing them to pass through individually.

[0046] like Figure 1 , Figures 8 to 10 As shown, the limiting conveying component 4 includes: a conveying component housing 401, a housing fixing frame 402, a pressure roller top housing 404, a pressure roller upper cover 405, a pressure roller bracket 406, a floating pressure roller 407, and a pressure roller top spring 408; the housing fixing frame 402 is provided between the inner walls of the device transport base 1, the conveying component housing 401 is provided between the housing fixing frames 402, the pressure roller top housing 404 is provided at the lower end of the top inner wall of the conveying component housing 401, the pressure roller upper cover 405 is slidably provided inside the pressure roller top housing 404, the pressure roller bracket 406 is integrally provided at the lower end of the pressure roller upper cover 405, the floating pressure roller 407 is rotatably installed at the lower end of the pressure roller bracket 406, the pressure roller top spring 408 is provided at the upper end of the pressure roller upper cover 405, and a fixed roller 403 is fixedly installed inside the housing fixing frame 402.

[0047] In the above technical solution, when a single carton enters below the housing 401 of the conveyor assembly, the printed conveyor belt 12, in conjunction with the floating pressure roller 407, ensures stable transportation after positioning. The upper pressure roller top spring 408 presses the lower pressure roller cover 405 and pressure roller bracket 406. When the materials are fed in overlapping layers, the increased thickness presses the pressure roller top spring 408, causing the upper carton to contact the fixed roller 403, thus staggering the overlapping upper cartons and ensuring single-piece feeding.

[0048] Working principle:

[0049] This invention places stacked cartons on the carton material positioning component 3, and transports individual pieces separated from the carton stack stably through the limiting conveying component 4. Subsequently, the pieces are positioned by the printed transport limiting frame 13 and printed by the carton printer 5, thus transitioning the positioning structure and coordinating the positioning effect between the carton material positioning component 3 and the limiting conveying component 4.

[0050] The graphic to be printed is input into the printing control host 2 by operating the display screen 11, and the printing conveyor belt 12 is controlled to transport it and print it through the carton printer 5.

[0051] In this process, the stacked cartons are placed on the feeding conveyor roller 303, and then the synchronous adjustment handwheel 308 is rotated to drive the synchronous bidirectional screw 307 to rotate. In conjunction with the screw sleeve 312 on the sliding base, the cardboard positioning side plate 313 on the side of the side plate sliding base 311 moves synchronously to position the carton stack. Then, the feeding positioning push plate 304 at the rear end presses the carton stack against the inner end face of the single feeding adjustment component 309. The push plate top spring 318 presses against the spring fixing plate 316, and pulls the base spring through rod 315 to clamp and position it, without hindering the carton stack from decreasing downward.

[0052] By rotating the fixing bolt 3098, the top plate connecting rod 3096 can slide in the single-piece adjusting slide groove 3093, thereby enabling the single right-angle top plate 3095 to slide in the single top plate groove 3094, so that the lower end of the single right-angle top plate 3095 can adapt to corrugated cardboard boxes of different thicknesses, allowing them to pass through individually.

[0053] When a single carton enters below the housing 401 of the conveyor assembly, the printed conveyor belt 12, in conjunction with the floating pressure roller 407, ensures stable transport after positioning. The upper pressure roller top spring 408 presses the lower pressure roller cover 405 and pressure roller bracket 406. When the cartons are fed in overlapping layers, the increased thickness presses the pressure roller top spring 408, causing the upper cartons to contact the fixed roller 403, thus offsetting the overlapping cartons and ensuring single-piece feeding.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A carton printing apparatus with positioning function, comprising an apparatus transport base (1), characterized in that, The device transport base (1) is provided with a carton raw material positioning component (3) for positioning and feeding at one end, and a limiting conveying component (4) is also provided at one end of the device transport base (1). The device transport base (1) is provided with a printing control host (2) in the middle, and a carton printer (5) is provided inside the printing control host (2). A printing protective cover (6) is provided on the upper end of the carton printer (5).

2. The carton printing device with positioning function according to claim 1, characterized in that, The device transport base (1) has a printing transport belt (12) in the middle, and adjustable distance printing transport limit frames (13) are provided on both sides of the inner wall of the device transport base (1) and above the printing transport belt (12).

3. The carton printing device with positioning function according to claim 2, characterized in that, The device transport base (1) is provided with a discharge conveyor (7) at the rear end. The discharge conveyor (7) is provided with several finished product conveyor rollers (8). The discharge conveyor (7) is provided with several conveyor support columns (9) at the lower end.

4. A carton printing device with positioning function according to claim 3, characterized in that, The printing control host (2) has an operating table (10) fixedly installed on its side, and the operating table (10) is equipped with an operation display screen (11) for editing printing formats.

5. A carton printing device with positioning function according to claim 4, characterized in that, The carton raw material positioning component (3) includes: a positioning component platform (301), a feeding operation platform (302), a feeding conveyor roller (303), a width positioning support column (305), a bidirectional screw mounting bracket (306), a synchronous bidirectional screw (307), a synchronous adjustment handwheel (308), a single-piece feeding adjustment component (309), a positioning side plate sliding rail (310), a side plate sliding base (311), a sliding base upper screw sleeve (312), and a cardboard positioning side plate (313). The positioning component platform (301) is connected to the end face of the device transport base (1). The upper end of the positioning component platform (301) is integrally provided with a feeding operation platform (302). Several feeding conveyor rollers (303) are arranged between the feeding operation platforms (302). A width positioning support column (305) is fixedly installed on the upper end of the feeding operation platform (302). A bidirectional screw mounting bracket (306) is provided on the upper end of the width positioning support column (305). A synchronous bidirectional screw (307) is rotatably installed between the bidirectional screw mounting brackets (306). A synchronous adjustment handwheel (308) is coaxially fixedly installed on one end of the synchronous bidirectional screw (307). A positioning side plate sliding rail (310) is fixedly connected between the width positioning support columns (305). A single-piece feeding adjustment component (309) is fixedly installed in the middle of the positioning side plate sliding rail (310). A side plate sliding base (311) is slidably arranged on the positioning side plate sliding rail (310) and on both sides of the single-piece feeding adjustment component (309). A cardboard positioning side plate (313) is integrally arranged on the side of the side plate sliding base (311). A sliding base upper screw sleeve (312) is integrally arranged on the upper end of the side plate sliding base (311) and sleeved on the synchronous bidirectional screw (307).

6. A carton printing device with positioning function according to claim 5, characterized in that, The positioning component platform (301) is slidably provided with a feeding positioning push plate (304), and the lower end of the feeding positioning push plate (304) is integrally provided with a positioning push plate base (314), and the rear end of the positioning push plate base (314) is fixedly connected with a base spring rod (315). The lower end of the positioning component platform (301) is fixedly installed with a spring top sleeve (317) which is sleeved on the base spring through rod (315). The end of the base spring through rod (315) is integrally provided with a spring fixing plate (316), and a push plate top spring (318) is provided between the spring fixing plate (316) and the spring top sleeve (317).

7. A carton printing device with positioning function according to claim 6, characterized in that, The single-piece feeding adjustment assembly (309) includes: adjustment assembly base (3091), bidirectional screw through hole (3092), single-piece adjustment slide groove (3093), single-piece top plate groove (3094), single-piece right-angle top plate (3095), top plate connecting rod (3096), and fixing screw hole (3097); The adjustment component base (3091) is connected between the positioning side plate sliding rail (310). The upper end of the adjustment component base (3091) is provided with a bidirectional screw through hole (3092), and the lower end of the adjustment component base (3091) is provided with a single-piece top plate groove (3094). A single-piece adjustment slide groove (3093) is provided in the single-piece top plate groove (3094), and a single-piece right-angle top plate (3095) is slidably arranged in the single-piece top plate groove (3094). The single right-angle top plate (3095) is integrated with a top plate connecting rod (3096) at its rear end and located within the single adjustment groove (3093). The rear end of the top plate connecting rod (3096) is provided with a fixing screw hole (3097).

8. A carton printing apparatus with positioning function according to claim 7, characterized in that, A fixing bolt (3098) is provided in the fixing screw hole (3097).

9. A carton printing device with positioning function according to claim 8, characterized in that, The restricted transmission assembly (4) includes: a transmission assembly housing (401), a housing fixing frame (402), a pressure roller top housing (404), a pressure roller top cover (405), a pressure roller bracket (406), a floating pressure roller (407), and a pressure roller top spring (408). A housing fixing frame (402) is provided between the inner walls of the transport base (1) of the device. A conveying component housing (401) is provided between the housing fixing frames (402). A pressure roller top shell (404) is provided at the lower end of the inner wall of the top of the conveying component housing (401). A pressure roller top cover (405) is slidably provided inside the pressure roller top shell (404). A pressure roller bracket (406) is integrally provided at the lower end of the pressure roller top cover (405). A floating pressure roller (407) is rotatably installed at the lower end of the pressure roller bracket (406). A pressure roller top spring (408) is provided at the upper end of the pressure roller top cover (405).

10. A carton printing apparatus with positioning function according to claim 9, characterized in that, A fixed roller (403) is fixedly installed inside the outer casing fixing frame (402).