A packaging box surface printing device

By introducing an electrostatic adsorption and brush reciprocating motion cleaning mechanism into the packaging box surface printing device, the problem of impurities adhering to the packaging box before printing is solved, thus improving the printing quality.

CN224528267UActive Publication Date: 2026-07-21HUNAN HUAYOU PACKAGING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN HUAYOU PACKAGING MATERIALS CO LTD
Filing Date
2025-07-21
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, before printing, impurities such as fibers and paper scraps adhere to the packaging boxes, resulting in blurred, broken, or damaged printed patterns, which reduces the printing effect.

Method used

A packaging box surface printing device was designed, comprising a conveyor belt, a clamping mechanism, and a cleaning mechanism. The cleaning mechanism uses an electrostatic rod to attract and remove impurities, and the reciprocating motion of the brush plate is achieved through the cooperation of gears and cams to enhance the cleaning effect.

Benefits of technology

It effectively removes paper scraps and dust from the surface of packaging boxes, improves printing quality, and ensures the clarity and integrity of printed patterns.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224528267U_ABST
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Abstract

The utility model relates to packing box production field especially, and is a kind of packing box surface printing device, including conveyer belt, the fixed frame is fixed in conveyer belt top, it is equipped with several clamping mechanisms between conveyer belt and fixed frame, clamping mechanism is equipped with packing box, still include two cleaning mechanisms that packing box is symmetrically distributed before and after, and cleaning mechanism includes support plate. Through the paper scrap on the surface of packing box preliminary cleaning of brush plate, then through electrostatic generating stick to the fine paper scrap and dust on the surface of packing box are adsorbed cleaning, through gear rotation to scrape frame and remove the fine paper scrap and dust adsorbed on the surface of electrostatic generating stick, in this process, gear drives cam to intermittently impact brush plate, so that brush plate is reciprocating along two sides in limiting frame, increase the cleaning effect of brush plate to packing box, to reduce the interference of impurity to printed pattern, improve printing quality.
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Description

Technical Field

[0001] This utility model relates to the field of packaging box production, and in particular to a packaging box surface printing device. Background Technology

[0002] According to the patent document with publication number CN222522271U, the patent document describes a process where a packaging box is placed on the top surface of a limiting base. A motor drives a fixed rod to rotate, which in turn moves two connecting bars closer to the motor. This causes two limiting plates to clamp and limit the packaging box. A conveyor belt then carries the limiting base and the packaging box clamped and limited on its surface into a double-sided printing device. The printing process begins, and the packaging box is printed. After printing, the packaging box enters a drying room where its surface is dried.

[0003] The patent document states that before the packaging box enters the double-sided printing equipment, some fibers, paper scraps or other impurities will be generated during the production process. These impurities may adhere to the surface of the packaging box, thereby hindering the uniform distribution of ink, resulting in blurry, broken or missing printed patterns and text, and reducing the printing effect of the packaging box. Utility Model Content

[0004] The purpose of this invention is to provide a packaging box surface printing device to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A packaging box surface printing device includes a conveyor belt, a fixed frame fixed to the top of the conveyor belt, a plurality of clamping mechanisms between the conveyor belt and the fixed frame, a packaging box being placed inside the clamping mechanism, and two cleaning mechanisms symmetrically distributed at the front and back of the packaging box.

[0007] The cleaning mechanism includes a support plate, an electrostatic generator fixed to the top of the support plate, a slide frame fitted around the outside of the electrostatic generator, a scraper fixed to the bottom of the slide frame, a slide plate fixed to one side of the slide frame, a gear rotatably connected to the side of the slide plate near the packaging box, a rack meshing with one side of the gear fixed to the top of the support plate, a cam fixed to the side of the gear near the packaging box, a limit frame located on one side of the cam fixed to the top of the support plate, a brush plate slidably connected to the other side of the limit frame, and several second springs fixed between the brush plate and the limit frame.

[0008] Preferably, a double-sided printing device is installed at the top of the conveyor belt, a double-sided drying device is installed on one side of the double-sided printing device, and support frames are installed on the front and rear sides of the conveyor belt. Both the double-sided printing device and the double-sided drying device are fixedly connected to the support frames.

[0009] Preferably, the clamping mechanism includes a top plate that is slidably connected to the bottom of the fixing frame, and a bottom plate is provided above and below the top plate, with the top plate and bottom plate located at the top and bottom of the packaging box, respectively.

[0010] Preferably, the top plate and the bottom plate are fixed with fixing plates at the four corners of their respective sides, and the fixing plates are provided with clamps on the side of the fixing plates that are close to the packaging box. A first spring is fixed between the fixing plates and the clamps.

[0011] Preferably, the support plate is fixed to the top of the support frame, and a motor is fixedly installed at the input end of the gear.

[0012] Preferably, a limiting plate is fixed on the side of the rack away from the packaging box to facilitate the sliding of the slide plate.

[0013] Preferably, the scraper has a triangular cross-section, the bottom of the scraper is attached to the outer surface of the electrostatic generator, and the scraper is made of soft rubber.

[0014] The advantages compared to existing technologies are as follows: The brush plate initially cleans the paper scraps on the surface of the packaging box, and then the electrostatic generator rod adsorbs and cleans the fine paper scraps and dust on the surface of the packaging box. The gear rotation drives the scraper to scrape off the fine paper scraps and dust adsorbed on the surface of the electrostatic generator rod. During this process, the gear drives the cam to intermittently impact the brush plate, causing the brush plate to reciprocate along both sides within the limit frame, which increases the cleaning effect of the brush plate on the packaging box, thereby reducing the interference of impurities on the printed pattern and improving the printing quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the packaging box surface printing device described in this utility model;

[0017] Figure 2 This is a front view of the packaging box surface printing device described in this utility model;

[0018] Figure 3 yes Figure 2 Sectional view at point AA;

[0019] Figure 4 yes Figure 2 Sectional view at point BB;

[0020] Figure 5This is a schematic diagram of the clamping mechanism of the packaging box surface printing device described in this utility model;

[0021] Figure 6 This is a schematic diagram of the cleaning mechanism of the packaging box surface printing device described in this utility model;

[0022] Figure 7 This is a schematic diagram of the slide and plate structure of the packaging box surface printing device described in this utility model;

[0023] Figure 8 yes Figure 4 Enlarged view of point C in the middle.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Conveyor belt; 2. Fixing frame; 3. Packaging box; 4. Double-sided printing equipment; 5. Double-sided drying equipment; 6. Clamping mechanism; 7. Cleaning mechanism; 601. Top plate; 602. Bottom plate; 603. Fixing plate; 604. Clamping plate; 605. First spring; 701. Support plate; 702. Static generator rod; 703. Slide; 704. Scraper; 705. Slide plate; 706. Gear; 707. Rack; 708. Cam; 709. Brush plate; 710. Limiting frame; 711. Second spring. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-8 As shown, a packaging box surface printing device includes a conveyor belt 1, a fixed frame 2 fixed on the top of the conveyor belt 1, a plurality of clamping mechanisms 6 between the conveyor belt 1 and the fixed frame 2, a packaging box 3 is placed in the clamping mechanism 6, and two cleaning mechanisms 7 are symmetrically distributed in front and behind the packaging box 3.

[0029] In this embodiment: the cleaning mechanism 7 includes a support plate 701, an electrostatic generator 702 fixed to the top of the support plate 701, a slide 703 sleeved on the outside of the electrostatic generator 702, a scraper 704 fixed to the bottom of the slide 703, a slide plate 705 fixed to one side of the slide 703, a gear 706 rotatably connected to the side of the slide plate 705 near the packaging box 3, a rack 707 fixed to the top of the support plate 701 that meshes with one side of the gear 706, a cam 708 fixed to the side of the gear 706 near the packaging box 3, a limiting frame 710 fixed to the top of the support plate 701 located on one side of the cam 708, a brush plate 709 slidably connected to the other side of the limiting frame 710, and a fixed connection between the brush plate 709 and the limiting frame 710. Several second springs 711 are fixed. The brush plate 709 performs initial cleaning of paper scraps on the surface of the packaging box 3. Then, the electrostatic generator 702 adsorbs and cleans the fine paper scraps and dust on the surface of the packaging box 3. The gear 706 rotates and rolls along the rack 707, thereby driving the slide plate 705 and the slide 703 to move in the vertical direction, so that the scraper 704 scrapes off the fine paper scraps and dust adsorbed on the surface of the electrostatic generator 702. During this process, the gear 706 drives the cam 708 to rotate, and the cam 708 intermittently impacts the brush plate 709. After the several second springs 711 are compressed and rebound, the brush plate 709 is reset, so that the brush plate 709 reciprocates along both sides within the limit frame 710.

[0030] In this embodiment: a double-sided printing device 4 is provided at the top of the conveyor belt 1, a double-sided drying device 5 is provided on one side of the double-sided printing device 4, and support frames are provided on the front and rear sides of the conveyor belt 1. The double-sided printing device 4 and the double-sided drying device 5 are both fixedly connected to the support frames. The conveyor belt 1 drives several clamping mechanisms 6 and the clamped packaging boxes 3 to move from one side to the other side. The double-sided printing device 4 prints on the front and rear sides of the packaging boxes 3, and the double-sided drying device 5 dries the printed packaging boxes 3.

[0031] In this embodiment: the clamping mechanism 6 includes a top plate 601, which is slidably connected to the bottom of the fixing frame 2. A bottom plate 602 is provided above and below the top plate 601. The top plate 601 and the bottom plate 602 are located at the top and bottom of the packaging box 3, respectively. The top plate 601 and the bottom plate 602 protect the top and bottom of the packaging box 3 to prevent wear and tear on the packaging box 3 during movement. The fixing frame 2 restricts and stabilizes the movement of the top plate 601, so that the packaging box 3 moves stably on the top of the conveyor belt 1.

[0032] In this embodiment: the top plate 601 and the bottom plate 602 are fixed with four corners on the side close to each other. The fixed plate 603 is provided with a clamping plate 604 on the side close to the packaging box 3. A first spring 605 is fixed between the fixed plate 603 and the clamping plate 604. By inserting the packaging box 3 between the four clamping plates 604, the four first springs 605 are compressed and pushed by the reaction force to push the four fixed plates 603 to clamp the packaging box 3.

[0033] In this embodiment: the support plate 701 is fixed to the top of the support frame, and a motor is fixedly installed at the input end of the gear 706, which drives the gear 706 to rotate.

[0034] In this embodiment, a limiting plate is fixed on the side of the rack 707 away from the packaging box 3 to cooperate with the sliding plate 705 to slide. The limiting plate enables the sliding plate 705 to move stably in the vertical direction under the drive of the gear 706.

[0035] In this embodiment: the scraper 704 has a triangular cross-section, the bottom of the scraper 704 is attached to the outer surface of the electrostatic generator 702, and the scraper 704 is made of soft rubber. By moving the scraper 704 downward, the fine paper scraps and dust adsorbed on the surface of the electrostatic generator 702 are scraped off.

[0036] Working principle: The packaging box 3 is inserted between four clamping plates 604. The compression and reaction of four first springs 605 pushes four fixing plates 603 to clamp the packaging box 3. The conveyor belt 1 drives several clamping mechanisms 6 and the clamped packaging box 3 to move from one side to the other. The packaging box 3 first passes through the cleaning mechanism 7, where a brush plate 709 performs preliminary cleaning of paper scraps on its surface. Then, an electrostatic generator 702 adsorbs and cleans fine paper scraps and dust from the surface of the packaging box 3. During this process, the motor drives the gear 706 to rotate forward. The gear 706 rotates along the rack 707, thereby driving the slide plate 705 and the carriage 703 to move downwards vertically. The limiting plate keeps the slide plate 705 within the gear... Driven by 706, the scraper moves steadily downwards in the vertical direction, causing the scraper 704 to scrape away the fine paper scraps and dust adsorbed on the surface of the electrostatic generator 702. The motor drives the gear 706 to rotate in the opposite direction, causing the scraper 704 to reset. During the rotation of the gear 706, the cam 708 rotates, and the cam 708 intermittently impacts the brush plate 709. Several second springs 711 are compressed and rebound, causing the brush plate 709 to reset. The brush plate 709 then reciprocates along both sides within the limit frame 710. The cleaned packaging box 3 passes through the double-sided printing equipment 4 and the double-sided drying equipment 5 in sequence. The double-sided printing equipment 4 prints on both the front and back sides of the packaging box 3, and the double-sided drying equipment 5 dries the printed packaging box 3.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A packaging box surface printing device, comprising a conveyor belt (1), a fixing frame (2) fixed to the top of the conveyor belt (1), and a plurality of clamping mechanisms (6) provided between the conveyor belt (1) and the fixing frame (2), wherein a packaging box (3) is provided inside the clamping mechanism (6), characterized in that: It also includes two cleaning mechanisms (7) symmetrically distributed at the front and back of the packaging box (3); The cleaning mechanism (7) includes a support plate (701), a static electricity generator (702) is fixed to the top of the support plate (701), a slide (703) is fitted around the outside of the static electricity generator (702), a scraper (704) is fixed to the bottom of the slide (703), a slide plate (705) is fixed to one side of the slide (703), and a gear (706) is rotatably connected to the side of the slide plate (705) near the packaging box (3). The top of the support plate (701) A rack (707) is fixed to one side of the gear (706), a cam (708) is fixed to the side of the gear (706) near the packaging box (3), a limiting frame (710) located on one side of the cam (708) is fixed to the top of the support plate (701), a brush plate (709) is slidably connected to the other side of the limiting frame (710), and a plurality of second springs (711) are fixed between the brush plate (709) and the limiting frame (710).

2. The packaging box surface printing device according to claim 1, characterized in that: The top of the conveyor belt (1) is equipped with a double-sided printing device (4), and a double-sided drying device (5) is provided on one side of the double-sided printing device (4). Support frames are provided on the front and rear sides of the conveyor belt (1). The double-sided printing device (4) and the double-sided drying device (5) are both fixedly connected to the support frames.

3. The packaging box surface printing device according to claim 1, characterized in that: The clamping mechanism (6) includes a top plate (601) which is slidably connected to the bottom of the fixing frame (2). A bottom plate (602) is provided above and below the top plate (601). The top plate (601) and the bottom plate (602) are located at the top and bottom of the packaging box (3), respectively.

4. The packaging box surface printing device according to claim 3, characterized in that: The top plate (601) and the bottom plate (602) are each fixed with a fixing plate (603) at the four corners of the side closest to each other. Each fixing plate (603) is provided with a clamping plate (604) on the side of the packaging box (3). A first spring (605) is fixed between the fixing plate (603) and the clamping plate (604).

5. The packaging box surface printing device according to claim 1, characterized in that: The support plate (701) is fixed to the top of the support frame, and a motor is fixedly installed at the input end of the gear (706).

6. The packaging box surface printing device according to claim 1, characterized in that: The rack (707) is fixed with a limiting plate on the side away from the packaging box (3) for sliding with the sliding plate (705).

7. The packaging box surface printing device according to claim 1, characterized in that: The scraper (704) has a triangular cross-section, and the bottom of the scraper (704) is attached to the outer surface of the electrostatic generator (702). The scraper (704) is made of soft rubber.