A surface pre-cleaning device for corrugated box printing

Abstract

The utility model discloses a corrugated carton printing is with surface pre -cleaning device relates to corrugated carton production technical field, including frame, the inside of frame is provided with a group of transmission module, the top of frame is provided with the cleaning mechanism for realizing carton board double -sided cleaning, and the cleaning mechanism includes: cleaning unit and dust absorption unit, and the cleaning unit sets up in the top of frame, including the mount frame fixed mounting in the top of frame, through the upper brush roller and lower brush roller synchronous cleaning design, solved corrugated paperboard bottom surface pollutant and cannot remove technical pain point, and the traditional equipment only cleans the printing surface, and the dust, paper powder etc. Pollutants that the bottom surface stains will be extruded and raised in the printing machine conveying process, cause the top surface secondary pollution after cleaning. The design passes through the double -roller synchronous rotation brush washes paperboard double -sided, and the stratified collection of dust absorption unit is combined, and the pollutant migration path is blocked from the source, and the printing surface cleanliness and printing quality are improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box production technology, specifically to a surface pre-cleaning device for corrugated cardboard box printing. Background Technology

[0002] Corrugated cardboard boxes are now ubiquitous in daily life. They are made from corrugated cardboard through die-cutting, creasing, stapling, or gluing. Corrugated cardboard boxes are one of the most widely used packaging products. Because they are considered environmentally friendly, facilitating both environmental protection and loading / unloading, their usage has consistently been the highest among all packaging products.

[0003] According to the patent titled "A Surface Pre-cleaning Device for Corrugated Cardboard Box Printing" (Patent Publication No.: CN219115041U, Patent Publication Date: 2023-06-02), the device includes a frame with a rotating conveyor belt. A cleaning assembly is installed on the frame corresponding to the conveyor belt. The cleaning assembly includes a housing covering the upper side of the conveyor belt, and a cylinder inside the housing. A second motor is mounted on the piston rod of the cylinder. The cylinder drives the second motor to reciprocate along the conveyor belt. The output shaft of the second motor points towards the conveyor belt and has a first brush. Two second brushes, parallel to the axis, are located on either side of the output shaft. These second brushes can both revolve around the output shaft and rotate on their own axes. The first and second brushes work together to clean the corrugated cardboard boxes entering the housing. This device provides a convenient and easy way to clean corrugated cardboard boxes.

[0004] Based on the aforementioned existing technology, current surface pre-cleaning devices for corrugated cardboard box printing still have the following problems: existing cleaning devices only clean the top surface that is about to be printed. However, the bottom surface of the corrugated cardboard also becomes contaminated with dust, paper dust, oil, and other pollutants during transportation. When the cardboard is fed into the printing press, the contaminants on the bottom surface are squeezed, rubbed, and lifted by equipment components such as conveyor belts, rollers, and pressure rollers, and then fall back onto the already cleaned printing surface. Therefore, this utility model provides a surface pre-cleaning device for corrugated cardboard box printing. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a surface pre-cleaning device for corrugated cardboard box printing. This device solves the following problems associated with existing surface pre-cleaning devices for corrugated cardboard box printing: Existing cleaning devices only clean the top surface to be printed. However, the bottom surface of the corrugated cardboard also accumulates dust, paper dust, oil, and other contaminants during transportation. When the cardboard is fed into the printing press, these contaminants are squeezed, rubbed, and lifted by the conveyor belt, rollers, pressure rollers, and other equipment components, eventually falling back onto the already cleaned printing surface.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a surface pre-cleaning device for corrugated cardboard box printing, comprising a frame, a set of conveying modules disposed inside the frame, and a cleaning mechanism disposed above the frame for double-sided cleaning of the cardboard board, the cleaning mechanism comprising:

[0007] The cleaning unit is located above the frame and includes a mounting bracket fixedly installed above the frame. The mounting bracket has sliding grooves on both the front and rear sides. An upper brush roller and a lower brush roller are slidably mounted inside the mounting bracket via a rotating ring. The distance between the upper brush roller and the lower brush roller can be adjusted by adjusting components provided on both the front and rear sides of the frame.

[0008] The dust collection unit is located inside the frame and is used to collect the dust generated during cleaning.

[0009] Preferably, the adjusting assembly includes an upper linkage gear fixedly installed at both ends of the upper brush roller, and a lower linkage gear fixedly installed at both ends of the lower brush roller. An upper connecting rod is rotatably installed on the outer side of the upper linkage gear, and a lower connecting rod is rotatably installed on the outer side of the lower linkage gear. A linkage rod is rotatably installed between the upper and lower connecting rods. An upper drive gear and a lower drive gear are rotatably installed on the inner side of the linkage rod, and the upper drive gear and the lower drive gear are respectively meshed with the upper linkage gear and the lower linkage gear.

[0010] Preferably, protective shells are fixedly installed on both the front and rear sides of the frame to protect the adjustment components.

[0011] Preferably, the adjustment assembly further includes a hydraulic rod fixedly installed on the front side of the protective shell, and the output end of the hydraulic rod passes through the protective shell and extends to one side of the linkage rod for fixed connection.

[0012] Preferably, a fixing plate is fixedly installed on the outside of the linkage rod in the front adjustment assembly of the mounting bracket, and a drive unit is fixedly installed on the outside of the fixing plate, with the output end of the drive unit passing through the fixing plate and fixedly connected to the upper drive gear.

[0013] Preferably, the dust collection unit includes a dust collection head fixedly installed on the left side of the mounting frame and a collection box fixedly installed below the inner cavity of the frame. A dust collection head is fixedly installed above the dust collection head, and a second multi-head tube is fixedly installed below the collection box, with one end of the second multi-head tube fixedly connected to a first multi-head tube. A dust collection box is fixedly installed on the top of the mounting frame, and one end of the first multi-head tube is fixedly connected to the left side of the dust collection box. A filter plate is installed inside the dust collection box, and a dust pump is fixedly installed on the right side of the dust collection box.

[0014] This invention provides a surface pre-cleaning device for corrugated cardboard box printing. Compared with the prior art, it has the following advantages:

[0015] 1. This surface pre-cleaning device for corrugated cardboard printing solves the technical problem of inability to remove contaminants from the bottom surface of corrugated cardboard through a synchronous cleaning design of upper and lower brush rollers. Traditional equipment only cleans the printed surface, while dust, paper dust, and other contaminants on the bottom surface are squeezed and stirred up during the printing press conveyor, causing secondary contamination of the cleaned top surface. This design uses dual rollers to synchronously rotate and brush both sides of the cardboard, combined with the layered collection of the dust suction unit, to block the migration path of contaminants at the source, significantly improving the cleanliness of the printed surface and the printing quality.

[0016] 2. This surface pre-cleaning device for corrugated cardboard box printing achieves precise synchronous adjustment of the gap between the upper brush roller 213 and the lower brush roller 214 through the linkage between the upper and lower linkage gears, the upper drive gear, the lower drive gear, and the hydraulic rod. The hydraulic rod 48 pushes the linkage rod 47, causing the upper and lower connecting rods to move in opposite directions, allowing the brush rollers to automatically adapt to different gaps according to the cardboard thickness. This ensures balanced pressure between the two rollers, prevents cardboard deformation or uneven cleaning, and significantly enhances the equipment's adaptability to the production of cardboard boxes of different specifications. Attached Figure Description

[0017] Figure 1 This is a right-side perspective view of the structure of this utility model;

[0018] Figure 2 This is a right-side perspective view of the cleaning mechanism of this utility model.

[0019] Figure 3 A split-out left-side perspective view of the cleaning mechanism of this utility model;

[0020] Figure 4 This is a left-side perspective view of the cleaning mechanism of this utility model.

[0021] In the diagram: 1-Frame, 2-Cleaning mechanism, 21-Cleaning unit, 211-Mounting bracket, 212-Slide rail, 213-Upper brush roller, 214-Lower brush roller, 215-Rotating ring, 22-Dust suction unit, 221-Dust suction head, 222-Collection box, 223-First multi-head tube, 224-Second multi-head tube, 225-Dust collection box, 226-Filter plate, 227-Dust pump, 3-Transfer module, 4-Adjusting component, 41-Upper linkage gear, 42-Upper connecting rod, 43-Upper drive gear, 44-Lower linkage gear, 45-Lower connecting rod, 46-Lower drive gear, 47-Linkage rod, 48-Hydraulic rod, 5-Fixing plate, 6-Drive unit, 7-Protective shell. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] A surface pre-cleaning device for corrugated cardboard box printing includes a frame 1, a set of conveying modules 3 arranged inside the frame 1, and a cleaning mechanism 2 arranged above the frame 1 for double-sided cleaning of the cardboard. The cleaning mechanism 2 includes:

[0025] The cleaning unit 21 is located above the frame 1 and includes a mounting bracket 211 fixedly installed above the frame 1. The mounting bracket 211 has sliding grooves 212 on both the front and rear sides. The upper brush roller 213 and the lower brush roller 214 are slidably mounted inside the mounting bracket 211 via a rotating ring 215. The distance between the upper brush roller 213 and the lower brush roller 214 can be adjusted by adjusting components 4 provided on both the front and rear sides of the frame 1.

[0026] The dust collection unit 22 is located inside the frame 1 and is used to collect the dust that has been cleaned.

[0027] The sliding groove 212 and the rotating ring 215 cooperate to allow the upper brush roller 213 and the lower brush roller 214 to slide and adjust their distance, achieving simultaneous cleaning of both sides of the cardboard, thoroughly removing dust, paper dust and other contaminants from the top and bottom surfaces, and preventing secondary contamination of the printed surface.

[0028] In this embodiment, the adjustment component 4 includes an upper linkage gear 41 fixedly installed at both ends of the upper brush roller 213, and a lower linkage gear 44 fixedly installed at both ends of the lower brush roller 214. An upper connecting rod 42 is rotatably installed on the outer side of the upper linkage gear 41, and a lower connecting rod 45 is rotatably installed on the outer side of the lower linkage gear 44. A linkage rod 47 is rotatably installed between the upper connecting rod 42 and the lower connecting rod 45. An upper driving gear 43 and a lower driving gear 46 are rotatably installed on the inner side of the linkage rod 47, and the upper driving gear 43 and the lower driving gear 46 are respectively meshed with the upper linkage gear 41 and the lower linkage gear 44.

[0029] The upper linkage gear 41 and the lower linkage gear 44 are fixed at both ends of the upper brush roller 213 and the lower brush roller 214, respectively. They are connected to the linkage rod 47 through the upper connecting rod 42 and the lower connecting rod 45. The upper drive gear 43 and the lower drive gear 46 mesh with the upper linkage gear 41 and the lower linkage gear 44 to transmit power. When the hydraulic rod 48 pushes the linkage rod 47, it drives the upper connecting rod 42 and the lower connecting rod 45 to move in the opposite direction, so that the distance between the upper brush roller 213 and the lower brush roller 214 is adjusted synchronously, so as to adapt to different thicknesses of cardboard and avoid uneven cleaning or cardboard deformation.

[0030] In this embodiment, protective shells 7 are fixedly installed on both the front and rear sides of the frame 1 to protect the adjustment component 4.

[0031] The protective shell 7 covers the front and rear sides of the frame 1 and encloses the adjustment components 4 to prevent dust and paper scraps from entering the gears and linkage mechanism, thus extending the equipment life and reducing the frequency of maintenance.

[0032] In this embodiment, the adjustment component 4 also includes a hydraulic rod 48 fixedly installed on the front side of the protective shell 7, and the output end of the hydraulic rod 48 passes through the protective shell 7 and extends to one side of the linkage rod 47 and is fixedly connected thereto.

[0033] In this embodiment, a fixing plate 5 is fixedly installed on the outside of the linkage rod 47 in the front adjustment assembly 4 of the mounting bracket 211, and a drive unit 6 is fixedly installed on the outside of the fixing plate 5. The output end of the drive unit 6 passes through the fixing plate 5 and is fixedly connected to the upper drive gear 43.

[0034] In this embodiment, the dust collection unit 22 includes a dust collection head 221 fixedly installed on the left side of the mounting frame 211 and a collection box 222 fixedly installed below the inner cavity of the frame 1. The dust collection head 221 is fixedly installed above the dust collection head 221, and a second multi-head tube 224 is fixedly installed below the collection box 222. One end of the second multi-head tube 224 is fixedly connected to the first multi-head tube 223. A dust collection box 225 is fixedly installed on the top of the mounting frame 211. One end of the first multi-head tube 223 is fixedly connected to the left side of the dust collection box 225. A filter plate 226 is installed inside the dust collection box 225, and a dust collection pump 227 is fixedly installed on the right side of the dust collection box 225.

[0035] The first multi-head pipe 223 and the second multi-head pipe 224 are connected to the dust collection box 225. The dust pump 227 generates negative pressure, and the filter plate 226 intercepts particulate matter. The dual-channel design avoids the dispersion of pollutants and blocks secondary pollution.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] During operation, firstly, the hydraulic rod 48 pushes and pulls the linkage rod 47. The linkage rod 47 drives the upper linkage gear 41 and the lower linkage gear 44 to move in opposite directions through the upper linkage rod 42 and the lower linkage rod 45. The upper linkage gear 41 and the lower linkage gear 44 drive the upper brush roller 213 and the lower brush roller 214 to move synchronously to adjust the distance between them for cleaning the cardboard.

[0038] Next, the drive unit 6 operates, driving the upper drive gear 43 to rotate. The upper drive gear 43 drives the lower drive gear 46 to rotate. The upper drive gear 43 and the lower drive gear 46 drive the upper linkage gear 41 and the lower linkage gear 44 to rotate in opposite directions. The upper linkage gear 41 and the lower linkage gear 44 drive the upper brush roller 213 and the lower brush roller 214 to run synchronously. The cardboard is placed above the left conveyor module 3. The motor on the conveyor module 3 drives the rollers and belt to rotate, transporting the cardboard. When the cardboard enters between the upper brush roller 213 and the lower brush roller 214, the upper brush roller 213 and the lower brush roller 214 clean the surface of the cardboard.

[0039] Then, during the cleaning process, the vacuum pump 227 operates, generating suction on the inside of the vacuum head 221 and the collection box 222 through the first multi-head tube 223 and the second multi-head tube 224. The vacuum head 221 sucks the dust swept above the cardboard into the dust collection box 225 and filters it through the filter plate 226. The collection box 222 sucks the dust swept below the cardboard into the dust collection box 225 and filters it through the filter plate 226.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface pre-cleaning device for corrugated cardboard box printing, comprising a frame (1), wherein a set of conveying modules (3) are arranged inside the frame (1), characterized in that: A cleaning mechanism (2) is provided above the frame (1) to achieve double-sided cleaning of the cardboard. The cleaning mechanism (2) includes: The cleaning unit (21) is located above the frame (1) and includes a mounting bracket (211) fixedly installed above the frame (1). The mounting bracket (211) has sliding grooves (212) on both the front and rear sides. The upper brush roller (213) and the lower brush roller (214) are slidably installed inside the mounting bracket (211) via a rotating ring (215). The distance between the upper brush roller (213) and the lower brush roller (214) can be adjusted by adjusting components (4) provided on both the front and rear sides of the frame (1). A dust collection unit (22) is located inside the frame (1) and is used to collect the dust that has been cleaned.

2. The surface pre-cleaning device for corrugated cardboard box printing according to claim 1, characterized in that: The adjustment assembly (4) includes an upper linkage gear (41) fixedly installed at both ends of the upper brush roller (213), and a lower linkage gear (44) fixedly installed at both ends of the lower brush roller (214). An upper connecting rod (42) is rotatably installed on the outer side of the upper linkage gear (41), and a lower connecting rod (45) is rotatably installed on the outer side of the lower linkage gear (44). A linkage rod (47) is rotatably installed between the upper connecting rod (42) and the lower connecting rod (45). An upper drive gear (43) and a lower drive gear (46) are rotatably installed on the inner side of the linkage rod (47), and the upper drive gear (43) and the lower drive gear (46) are respectively meshed with the upper linkage gear (41) and the lower linkage gear (44).

3. The surface pre-cleaning device for corrugated cardboard box printing according to claim 2, characterized in that: The frame (1) is fixedly equipped with protective shells (7) on both the front and rear sides to protect the adjustment components (4).

4. The surface pre-cleaning device for corrugated cardboard box printing according to claim 3, characterized in that: The adjustment assembly (4) also includes a hydraulic rod (48) fixedly installed on the front side of the protective shell (7), and the output end of the hydraulic rod (48) passes through the protective shell (7) and extends to one side of the linkage rod (47) and is fixedly connected thereto.

5. The surface pre-cleaning device for corrugated cardboard box printing according to claim 2, characterized in that: A fixing plate (5) is fixedly installed on the outside of the linkage rod (47) in the front adjustment assembly (4) of the mounting bracket (211). A drive unit (6) is fixedly installed on the outside of the fixing plate (5), and the output end of the drive unit (6) passes through the fixing plate (5) and is fixedly connected to the upper drive gear (43).

6. The surface pre-cleaning device for corrugated cardboard box printing according to claim 1, characterized in that: The vacuum unit (22) includes a vacuum head (221) fixedly installed on the left side of the mounting frame (211) and a collection box (222) fixedly installed below the inner cavity of the frame (1). The vacuum head (221) is fixedly installed above the vacuum head (221), and a second multi-head tube (224) is fixedly installed below the collection box (222). One end of the second multi-head tube (224) is fixedly connected to the first multi-head tube (223). A dust collection box (225) is fixedly installed on the top of the mounting frame (211). One end of the first multi-head tube (223) is fixedly connected to the left side of the dust collection box (225). A filter plate (226) is installed inside the dust collection box (225), and a vacuum pump (227) is fixedly installed on the right side of the dust collection box (225).

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