Folding vertical carton printing equipment and carton printing machine

Abstract

This disclosure provides a folding vertical carton printing equipment and a carton printing machine. The aforementioned folding vertical carton printing equipment includes a carton printing machine housing, a carton conveying device, and a carton inking and printing device. The carton conveying device includes a carton flipping mechanism and a flipping power mechanism. The flipping power mechanism includes a flipping rotating base, a swing connecting shaft, a push-pull connecting shaft, and a flipping push-pull cylinder. The push-pull connecting shaft is also connected to the telescopic end of the flipping push-pull cylinder. The carton clamping and flipping assembly corresponds to the transfer conveyor belt, facilitating the carton clamping and flipping assembly to hold and fix the transfer conveyor belt and the folding vertical carton together, ensuring that the surface of the folding vertical carton is flat and does not warp or deform, thus improving the multi-sided printing efficiency of the folding vertical carton. The flipping rotating shaft achieves rotation at a specified angle, facilitating precise flipping of the folding vertical carton and improving the accuracy of the flipping angle control of the folding vertical carton.

Description

Technical Field

[0001] This disclosure relates to the field of printing equipment technology, and in particular to a folding vertical carton printing device and a carton printing machine. Background Technology

[0002] A printing press is a software-controlled device that marks products (marking refers to various types of barcodes, text, graphics, etc.). It typically uses two methods: contact printing and non-contact printing. Non-contact methods include Continuous Inkjet Printer (CIJ), Piezoelectric Inkjet Printer (PIJ), and Thermal Inkjet Printer (TIJ).

[0003] In the current cardboard packaging industry, the traditional method for printing product information such as production order number, place of production, and weight on the outer surface of cardboard boxes is to print while the box is still flat and not folded. This requires manual flipping at least once to print on multiple sides. After printing, the box needs to be folded again before being put into the packaging process. Similarly, for folded upright cardboard boxes, only the top can be printed, requiring manual flipping at least once to print on the other sides. Moreover, there is a possibility that the flipping is not done properly, requiring readjustment of the flipping angle, resulting in low printing efficiency. Summary of the Invention

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a folding upright carton printing equipment and carton printing machine that effectively improves the multi-sided printing efficiency of folding upright cartons and provides precise control of the flipping angle.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] A folding upright carton printing device includes: a carton printing machine housing, a carton flipping mechanism, and a carton ink coating and printing device; the carton conveying device includes a carton flipping mechanism and a flipping power mechanism; the folding upright carton flipping mechanism includes a transfer conveyor belt and a carton clamping and flipping assembly; the transfer conveyor belt is located between an upper carton conveyor belt and an unloading conveyor belt, and is used to transfer folding upright cartons; the carton clamping and flipping assembly is disposed on the carton printing machine housing, and is correspondingly disposed with the transfer conveyor belt; the clamping and flipping end of the carton clamping and flipping assembly is used to connect to the folding upright carton and the transfer conveyor belt respectively, so that the folding upright carton and the transfer conveyor belt flip together; the carton clamping and flipping assembly includes two opposing flipping clamping and fixing members, each flipping clamping and fixing member including a flipping rotation shaft and a carton clamping and fixing plate; the carton... The carton clamping and fixing plate is located on the side of the transfer conveyor belt. The carton clamping and fixing plate abuts against the folded upright carton and the transfer conveyor belt. The flipping rotation shaft is connected to the carton clamping and fixing plate. The flipping power mechanism includes a flipping rotating base, a swing connecting shaft, a push-pull connecting shaft, and a flipping push-pull cylinder. The flipping rotating base has a rotating shaft receiving hole. The flipping rotating shaft passes through the rotating shaft receiving hole. The end of the flipping rotating shaft away from the carton clamping and fixing plate is connected to the swing connecting shaft. The swing connecting shaft is rotatably connected to the push-pull connecting shaft. The push-pull connecting shaft is also connected to the telescopic end of the flipping push-pull cylinder. The flipping push-pull cylinder is mounted on the carton printing machine housing. The carton ink coating and printing device is mounted on the carton printing machine housing. The printing end of the carton ink coating and printing device faces the transfer conveyor belt to perform multi-sided ink coating and printing on the folded upright carton.

[0007] In one embodiment, the flipping power mechanism further includes a flipping angle positioning component, which includes a flipping bracket and a flipping positioning support rod connected to each other. The flipping bracket is disposed on the carton printing machine housing, and the flipping positioning support rod is disposed adjacent to the flipping rotation axis.

[0008] In one embodiment, the flipping positioning support rod is located on the rotating fan surface corresponding to the rotation trajectory of the flipping rotation axis.

[0009] In one embodiment, the number of the flipping angle positioning components is two, and the two flipping angle positioning components are arranged opposite to each other.

[0010] In one embodiment, the rotation angle formed by the abutment positions of the flipping rotation shaft and the two flipping positioning abutment rods is 90°.

[0011] In one embodiment, the carton inking and printing apparatus includes a printing displacement component, an inking and printing machine housing, and an ultraviolet curing lamp. The printing displacement component is disposed on the carton printing machine housing, and the inking and printing machine housing is connected to the movable end of the printing displacement component. The printing end of the inking and printing machine housing faces the carton printing machine housing. The ultraviolet curing lamp is disposed on the inking and printing machine housing, and the ultraviolet curing lamp and the inking and printing machine housing are arranged sequentially along the transmission direction of the transfer conveyor belt. The curing light output end of the ultraviolet curing lamp faces the carton printing machine housing.

[0012] In one embodiment, the folding upright carton printing equipment further includes a carton surface cleaning mechanism. The carton surface cleaning mechanism includes an upper conveyor belt and a carton dust removal assembly. The upper conveyor belt is mounted on the carton printing machine chassis. The carton dust removal assembly includes a dust removal bracket, a first dust removal duct, and a carton loading barcode reader. The dust removal bracket is mounted on the carton printing machine chassis, and the first dust removal duct is mounted on the dust removal bracket. The outlet end of the first dust removal duct faces the upper conveyor belt. The first dust removal duct is used to output ionizing air to the folding upright carton to remove surface dust from the folding upright carton. The carton loading barcode reader is connected to the dust removal bracket, and its reading end faces the upper conveyor belt. The carton loading barcode reader is used to read the code of the folding upright carton to activate the first dust removal duct.

[0013] In one embodiment, the carton dust removal assembly further includes a first telescopic member, a second telescopic member, and a second dust removal duct. Both the first and second telescopic members are connected to the dust removal bracket. The lifting end of the first telescopic member is connected to the carton loading barcode reader so that the carton loading barcode reader is closer to or farther from the upper carton conveyor belt. The lifting end of the second telescopic member is connected to the second dust removal duct so that the second dust removal duct is closer to or farther from the upper carton conveyor belt.

[0014] In one embodiment, the folding upright carton printing equipment further includes a carton printing proofreading mechanism. The carton printing proofreading mechanism includes an unloading conveyor belt, a rejection conveyor belt, and a printing inspection component. The unloading conveyor belt and the rejection conveyor belt are both disposed on the carton printing machine chassis, with the rejection conveyor belt disposed adjacent to the unloading conveyor belt. The printing inspection component includes a printing verification slide rail and a printing verification device. The printing verification slide rail is disposed on the carton printing machine chassis, and the printing verification device is slidably connected to the printing verification slide rail. The collecting end of the printing verification device faces the unloading conveyor belt, and the printing verification device is used to proofread the printing on the folding upright carton so that the rejection conveyor belt can be driven to remove the folding upright carton with printing errors.

[0015] A carton printing machine includes the folding vertical carton printing equipment described in any of the above embodiments.

[0016] Compared with the prior art, this disclosure has at least the following advantages:

[0017] After the folding upright cardboard box is placed on the transfer conveyor belt, the cardboard box clamping and flipping assembly aligns with the transfer conveyor belt, allowing it to hold and secure the transfer conveyor belt and the folding upright cardboard box together. During multi-sided printing of the folding upright cardboard box by the cardboard box ink coating and printing device, the cardboard box clamping and flipping assembly synchronously flips the transfer conveyor belt and the folding upright cardboard box, ensuring the surface of the folding upright cardboard box is flat and free from warping or deformation. This allows the cardboard box ink coating and printing device to form codes containing various information on multiple surfaces of the folding upright cardboard box through printing, eliminating the need for manual flipping and effectively improving the efficiency of multi-sided printing of the folding upright cardboard box. Furthermore, when the extension and retraction end of the flipping push-pull cylinder extends, the flipping rotation shaft rotates at a specified angle, facilitating precise flipping of the folding upright cardboard box and improving the accuracy of the flipping angle control. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a folding vertical carton printing device in one embodiment;

[0020] Figure 2 for Figure 1 A schematic diagram of the carton flipping mechanism and flipping power mechanism of the folding vertical carton printing equipment shown.

[0021] Figure 3 for Figure 2 A schematic diagram of the structure shown from another perspective;

[0022] Figure 4 for Figure 1 The enlarged schematic diagram of the folding vertical carton printing equipment shown at point A1. Detailed Implementation

[0023] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] This disclosure relates to a folding upright carton printing device. In one embodiment, the folding upright carton printing device includes a carton printing machine housing, a carton flipping mechanism, and a carton inking and printing device. The carton printing machine housing is used to house an upper carton conveyor belt and an unloading conveyor belt for transporting folding upright cartons. The folding upright carton flipping mechanism includes a transfer conveyor belt and a carton clamping and flipping assembly. The transfer conveyor belt is located between the upper carton conveyor belt and the unloading conveyor belt, and is used to transfer the folding upright carton. The carton clamping and flipping assembly is disposed on the carton printing machine housing, and is correspondingly disposed with the transfer conveyor belt. The clamping and flipping end of the carton clamping and flipping assembly is used to connect to both the folding upright carton and the transfer conveyor belt, so that the folding upright carton and the transfer conveyor belt flip together. The carton ink coating and printing device is mounted on the carton printing machine housing, with its printing end facing the transfer conveyor belt to perform multi-sided ink coating and printing on the folding upright carton. After the folding upright carton is placed on the transfer conveyor belt, the carton clamping and flipping assembly corresponds to the transfer conveyor belt, facilitating the clamping and flipping assembly to hold and fix the transfer conveyor belt and the folding upright carton together. During multi-sided printing of the folding upright carton by the carton ink coating and printing device, the carton clamping and flipping assembly synchronously flips the transfer conveyor belt and the folding upright carton, ensuring the surface of the folding upright carton is flat and free from warping or deformation. This allows the carton ink coating and printing device to form codes containing various information on multiple surfaces of the folding upright carton through printing, eliminating the need for manual flipping and effectively improving the efficiency of multi-sided printing on the folding upright carton.

[0027] Please see Figure 1 This is a schematic diagram of the structure of a folding vertical carton printing device according to an embodiment of the present disclosure.

[0028] One embodiment of the folding upright carton printing equipment 10 includes a carton printing machine housing 100, a carton flipping mechanism 200, and a carton inking and printing device 300. The carton printing machine housing 100 is used to house the upper conveyor belt and the lower conveyor belt for transporting folding upright cartons. Please refer to the accompanying documentation. Figure 2 The folding upright carton flipping mechanism 200 includes a transfer conveyor belt 210 and a carton clamping and flipping assembly 220. The transfer conveyor belt 210 is located between the loading conveyor belt and the unloading conveyor belt and is used to transfer the folding upright carton. The carton clamping and flipping assembly 220 is mounted on the carton printing machine housing 100 and is correspondingly arranged with the transfer conveyor belt 210. The clamping and flipping end of the carton clamping and flipping assembly 220 is used to connect to both the folding upright carton and the transfer conveyor belt 210, so that the folding upright carton and the transfer conveyor belt 210 flip together. The carton inking and printing device 300 is mounted on the carton printing machine housing 100 and is used to perform coding and inking operations on at least two surfaces of the folding upright carton.

[0029] In this embodiment, after the folding upright carton is placed on the transfer conveyor belt 210, the carton clamping and flipping assembly 220 corresponds to the transfer conveyor belt 210, so that the carton clamping and flipping assembly 220 can hold and fix the transfer conveyor belt 210 and the folding upright carton together. When the carton ink coating and printing device 300 performs multi-sided printing on the folding upright carton, the carton clamping and flipping assembly 220 flips the transfer conveyor belt 210 and the folding upright carton synchronously, so that the surface of the folding upright carton is flat and does not warp or deform. This allows the carton ink coating and printing device 300 to form codes with various information on multiple surfaces of the folding upright carton through printing, without the need for manual flipping, effectively improving the efficiency of multi-sided printing on the folding upright carton.

[0030] In one embodiment, the carton ink coating and printing apparatus can perform contact or non-contact printing. For example, the carton ink coating and printing apparatus is a screen printing apparatus; or, for example, the carton ink coating and printing apparatus is a jet printing apparatus.

[0031] In one embodiment, please refer to Figure 2The carton clamping and flipping assembly 220 includes two opposing flipping clamping fasteners 222. Each flipping clamping fastener 222 includes a flipping rotation shaft 2222 and a carton clamping fastener plate 2224. The carton clamping fastener plate 2224 is located on the side of the transfer conveyor belt 210 and abuts against the folded upright carton and the transfer conveyor belt 210. One end of the flipping rotation shaft 2222 is connected to the rotation shaft of the flipping power mechanism, and the other end of the flipping rotation shaft 2222 is connected to the carton clamping fastener plate 2224. In this embodiment, the two flipping clamping fasteners 222 are located on both sides of the transfer conveyor belt 210. For example, the carton clamping fastener plate 2224 is parallel to the transmission direction of the transfer conveyor belt 210. The flip-up clamping fixing member 222 fixes the folded upright carton and the transfer conveyor belt 210 by clamping. Specifically, the carton clamping fixing plate 2224 abuts against the side of the folded upright carton and the side of the transfer conveyor belt 210 respectively, so that the two carton clamping fixing plates 2224 jointly clamp the folded upright carton and the transfer conveyor belt 210, thereby keeping the folded upright carton and the transfer conveyor belt 210 in a fixed relative position. The flipping rotation shaft 2222 serves as an extension of the rotating shaft of the flipping power mechanism. The flipping rotation shaft 2222 is fixedly connected to the rotating shaft of the flipping power mechanism. When the rotating shaft of the flipping power mechanism rotates, the flipping rotation shaft 2222 drives the carton clamping and fixing plate 2224 to rotate, so that the folded upright carton and the transfer conveyor belt 210 are flipped synchronously, which facilitates the carton ink printing device 300 to perform multi-sided printing, thereby improving the printing efficiency of the folded upright carton.

[0032] Further, please refer to Figure 2 The folding upright carton flipping mechanism 200 further includes a clamping positioning sensor 230, which is disposed on the carton clamping fixing plate 2224. The sensing end of the clamping positioning sensor 230 faces the folding upright carton to sense the clamping distance between the carton clamping fixing plate 2224 and the folding upright carton. In this embodiment, the clamping positioning sensor 230 is located on the carton clamping fixing plate 2224. The clamping positioning sensor 230 serves as a sensing device for the distance between the carton clamping fixing plate 2224 and the folding upright carton. The clamping positioning sensor 230 determines the distance between the carton clamping fixing plate 2224 and the folding upright carton, ensuring the contact between the carton clamping fixing plate 2224 and the folding upright carton, and avoiding excessive compression of the folding upright carton by the carton clamping fixing plate 2224 during flipping.

[0033] In another embodiment, the flipping rotation shaft 2222 has a telescopic function to adjust the squeezing force between the carton clamping fixing plate 2224 and the folded upright carton according to the distance sensed by the clamping positioning sensor 230. For example, the flipping rotation shaft 2222 is an adjustable-length telescopic rod; or, the flipping power mechanism is connected to the telescopic end of a telescopic mechanism, and the telescopic function of the telescopic end of the telescopic mechanism is used to realize the telescopic adjustment of the flipping rotation shaft 2222.

[0034] In one embodiment, please refer to Figure 3 The carton clamping and flipping assembly 220 further includes a first clamping member 224, which includes a first clamping cylinder 2242 and a first clamping clamping plate 2244. The first clamping cylinder 2242 is connected to the carton clamping fixing plate 2224, and the telescopic end of the first clamping cylinder 2242 is connected to the first clamping clamping plate 2244. The first clamping clamping plate 2244 and the carton clamping fixing plate 2224 are arranged parallel to each other, and the first clamping clamping plate 2244 is used to abut against the first surface of the folded upright carton. In this embodiment, the first clamping cylinder 2242 is located on the carton clamping and fixing plate 2224. The first clamping cylinder 2242 serves as the extension and retraction power source for the first clamping clamp 2244. Under the extension and retraction of the extension and retraction end of the first clamping cylinder 2242, the first clamping clamp 2244 is stably held against the first surface of the folded upright carton, thereby increasing the clamping contact area of ​​the folded upright carton and increasing the clamping force of the folded upright carton. As a result, the first clamping clamp 2244 and the carton clamping and fixing plate 2224 jointly clamp the folded upright carton, thereby improving the clamping stability of the folded upright carton.

[0035] Further, please refer to Figure 3 The carton clamping and fixing plate 2224 has a through hole 202. The telescopic end of the first clamping cylinder 2242 passes through the through hole 202, so that the first clamping clamp 2244 moves closer to or further away from the folded upright carton. In this embodiment, the through hole 202 is provided on the carton clamping and fixing plate 2224, and the through hole 202 corresponds to the first clamping cylinder 2242. The telescopic end of the first clamping cylinder 2242 moves within the through hole 202, so that the first clamping clamp 2244 abuts against the first surface of the folded upright carton after passing through the through hole 202, thereby facilitating stable clamping of the first surface of the folded upright carton.

[0036] In another embodiment, there are two first clamping members 224, and the two first clamping clamps 2244 are respectively located on both sides of the folding upright carton. The first clamping clamps 2244 correspond one-to-one with the carton clamping fixing plate 2224, and the through hole 202 is located in the middle of the first clamping clamp 2244.

[0037] In one embodiment, please refer to Figure 2 The carton clamping and flipping assembly 220 further includes a second clamping member 226, which includes a second clamping cylinder 2262 and a second clamping clamping plate 2264. The second clamping cylinder 2262 is connected to the carton clamping fixing plate 2224, and the telescopic end of the second clamping cylinder 2262 is connected to the second clamping clamping plate 2264. The second clamping clamping plate 2264 and the carton clamping fixing plate 2224 are arranged perpendicular to each other, and the second clamping clamping plate 2264 is used to abut against the second surface of the folded upright carton. In this embodiment, the second clamping cylinder 2262 is located on the carton clamping and fixing plate 2224. The second clamping cylinder 2262 serves as the power source for the extension and retraction of the second clamping plate 2264. Under the extension and retraction of the extension end of the second clamping cylinder 2262, the second clamping plate 2264 is stably held against the second surface of the folded upright carton, thereby increasing the fixed contact area of ​​the folded upright carton. Furthermore, the second clamping plate 2264 is perpendicular to the carton clamping and fixing plate 2224, that is, the second clamping plate 2264 is parallel to the second surface of the folded upright carton. This allows the second clamping plate 2264 and the first clamping plate 2244 to fix the folded upright carton from two mutually perpendicular directions, thereby further improving the clamping stability of the folded upright carton.

[0038] Further, please refer to Figure 2The second clamping plate 2264 includes a clamping base plate 2264a and a turning connecting portion 2264b connected to each other. The clamping base plate 2264a abuts against the second surface of the folded upright cardboard box, and the turning connecting portion 2264b corresponds to the first surface of the folded upright cardboard box. The turning connecting portion 2264b is detachably connected to the telescopic end of the second clamping cylinder 2262. In this embodiment, the clamping base plate 2264a is parallel to the second surface of the folded upright cardboard box and perpendicular to the first clamping plate 2244. The clamping base plate 2264a fixes the second surface of the folded upright cardboard box. The turning connection 2264b is located between the clamping base plate 2264a and the second clamping cylinder 2262. The turning connection 2264b is also opposite to the first surface, so that the clamping base plate 2264a is connected to the telescopic end of the second clamping cylinder 2262 through the turning connection 2264b, thereby allowing the clamping base plate 2264a to rise and fall on the second surface perpendicular to the folded upright carton, which facilitates clamping and squeezing the second surface of the folded upright carton.

[0039] In one embodiment, please refer to Figure 2 The carton clamping and flipping assembly 220 further includes a third clamping member 228, which includes a third clamping cylinder 2282 and a clamping hinge claw 2284. The third clamping cylinder 2282 is connected to the carton clamping fixing plate 2224, and the telescopic end of the third clamping cylinder 2282 is connected to the clamping hinge claw 2284. The clamping hinge claw 2284 is used to abut against the third surface of the folded upright carton. The third surface of the folded upright carton is perpendicular to both the first and second surfaces of the folded upright carton. In this embodiment, the third clamping cylinder 2282 is located on the carton clamping and fixing plate 2224. The third clamping cylinder 2282 serves as the power source for the extension and retraction of the clamping hinge claw 2284. Under the extension and retraction of the extension end of the third clamping cylinder 2282, the clamping hinge claw 2284 is stably held against the third surface of the folded upright carton, increasing the fixed contact area of ​​the folded upright carton. Furthermore, the contact surface between the clamping hinge claw 2284 and the folded upright carton is the third surface, which is perpendicular to both the first and second surfaces. This generates a common clamping force in the three perpendicular directions of the folded upright carton, further improving its stability during flipping. Thus, by using clamping mechanisms in each direction to hold each surface of the folded upright carton flat, the distance between the inkjet nozzle and the printing surface of the folded upright carton is uniform during printing, avoiding uneven printing caused by surface warping in folded upright cartons without clamping mechanisms.

[0040] In another embodiment, the clamping hinge gripper 2284 is a hinge structure, wherein one leaf abuts against the first surface, and the other leaf abuts against the third surface and is connected to the telescopic end of the third clamping cylinder.

[0041] In another embodiment, the folding upright carton is a cube or cuboid. There are two of each of the first clamping member 224, the second clamping member 226, and the third clamping member 228. The two first clamping members 224 are positioned opposite each other, the two second clamping members 226 are positioned opposite each other, and the two third clamping members 228 are positioned opposite each other. Specifically, the two first clamping members 224 correspond to two opposite sides of the folding upright carton, the two second clamping members 226 correspond to the bottom and top surfaces of the folding upright carton, and the two third clamping members 228 correspond to the front and rear surfaces of the folding upright carton. The front surface of the folding upright carton faces the unloading conveyor belt, and the rear surface of the folding upright carton faces the loading conveyor belt.

[0042] In another embodiment, the number of the second clamping member 226 is one, and the second clamping member 226 abuts against the top surface of the folded upright carton to hold the folded upright carton against the transfer conveyor belt 210. When flipped, the transfer conveyor belt 210 stops transporting.

[0043] In another embodiment, there is one third clamping member 228. The third clamping member 228 abuts against the rear end face of the folded upright carton. The transfer conveyor belt 210 is provided with a liftable baffle. The baffle is arranged opposite to the third clamping member 228. The baffle is used to rise before the folded upright carton is flipped so as to abut against the front end face of the folded upright carton, so that the folded upright carton is positioned on the transfer conveyor belt 210 and is clamped together with the third clamping member 228.

[0044] In one embodiment, please refer to Figure 2The folding vertical carton printing equipment 10 also includes a flipping power mechanism 400. The flipping power mechanism 400 includes a flipping rotating base 410, a swing connecting shaft 420, a push-pull connecting shaft 430, and a flipping push-pull cylinder 440. The flipping rotating base 410 has a rotating shaft receiving hole 402. The flipping rotating shaft 2222 passes through the rotating shaft receiving hole 402. One end of the flipping rotating shaft 2222 away from the carton clamping fixing plate 2224 is connected to the swing connecting shaft 420. The swing connecting shaft 420 is rotatably connected to the push-pull connecting shaft 430. The push-pull connecting shaft 430 is also connected to the telescopic end of the flipping push-pull cylinder 440. The flipping push-pull cylinder 440 is mounted on the carton printing machine housing 100. In this embodiment, the swing connecting shaft 420 and the push-pull connecting shaft 430 are rotatably connected to each other to form a linkage structure. The swing connecting shaft 420 rotates around the end of the flipping rotating shaft 2222, and the push-pull connecting shaft 430 rotates around the end of the swing connecting shaft 420. The flipping rotating shaft 2222 is rotatably inserted into the rotating shaft receiving hole 402. Under the extension and retraction of the extension and retraction end of the flipping push-pull cylinder 440, the push-pull connecting shaft 430 is moved, causing the swing connecting shaft 420 to rotate simultaneously at two connection points, namely, the connection points between the swing connecting shaft 420, the push-pull connecting shaft 430, and the flipping rotating shaft 2222. Thus, when the extension and retraction end of the flipping push-pull cylinder 440 extends and retracts, the flipping rotating shaft 2222 rotates, facilitating the flipping of the folding upright cardboard box.

[0045] Further, please refer to Figure 2 The flipping power mechanism 400 also includes a flipping angle positioning component 450. The flipping angle positioning component 450 includes a flipping bracket 452 and a flipping positioning support rod 454 connected to each other. The flipping bracket 452 is disposed on the carton printing machine housing 100. The flipping positioning support rod 454 is disposed adjacent to the flipping rotation shaft 2222 and is located on the rotating fan surface corresponding to the rotation trajectory of the flipping rotation shaft 2222. In this embodiment, the flipping bracket 452 serves as the mounting bracket for the flipping positioning support rod 454. The end of the flipping positioning support rod 454 faces the side of the flipping rotation shaft 2222. The flipping rotation shaft 2222 forms a rotating fan during rotation. The flipping positioning support rod 454 is used to abut against the flipping rotation shaft 2222 when it rotates to a designated position, so that the rotation angle of the flipping rotation shaft 2222 is limited within a specified range. This fixes the flipping angle of the folding upright carton, making it easier to flip the surface of the folding upright carton that needs to be flipped for printing so that it faces the carton ink coating and printing device 300, thereby improving the printing alignment accuracy.

[0046] In another embodiment, there are two flip angle positioning members 450, which are arranged opposite to each other. The rotation angle formed by the flip rotation shaft 2222 and the two flip positioning abutment rods 454 at their respective abutment positions is 90°, so that the rotation angle of the flip rotation shaft 2222 is 90°, which facilitates the printing operation on two adjacent vertical surfaces of the cubic folded upright carton.

[0047] In one embodiment, please refer to Figure 1 The carton ink coating and printing device 300 includes a printing displacement component 310, an ink coating and printing machine housing 320, and an ultraviolet curing lamp 330. The printing displacement component 310 is disposed on the carton printing machine housing 100. The ink coating and printing machine housing 320 is connected to the moving end of the printing displacement component 310. The printing end of the ink coating and printing machine housing 320 faces the carton printing machine housing 100, that is, the printing end of the carton ink coating and printing device 320 faces the transfer conveyor belt 210. The ultraviolet curing lamp 330 is disposed on the ink coating and printing machine housing 320. The ultraviolet curing lamp 330 and the ink coating and printing machine housing 320 are arranged sequentially along the transmission direction of the transfer conveyor belt 210. The curing light output end of the ultraviolet curing lamp 330 faces the carton printing machine housing 100. In this embodiment, the printing displacement component 310 serves as a spatial moving part for the inking printing machine chassis 320 and the ultraviolet curing lamp 330. Specifically, the printing displacement component 310 has the function of moving in three mutually perpendicular directions (X, Y, and Z). Driven by the printing displacement component 310, the inking printing machine chassis 320 and the ultraviolet curing lamp 330 can move to a position corresponding to the transfer conveyor belt 210, for example, the inking printing machine chassis 320 and the ultraviolet curing lamp 330 are both located above the transfer conveyor belt 210. Thus, during the printing operation, the inking printing machine chassis 320 and the ultraviolet curing lamp 330 move along the transmission direction of the transfer conveyor belt 210. The inking printing machine chassis 320 sprays ink onto the printing area of ​​the folding upright carton, and then the ultraviolet curing lamp 330 cures the ink in the printing area with ultraviolet light, facilitating the rapid formation of a code that is not easily peeled off.

[0048] In another embodiment, the UV curing lamp 330 is also connected to the main controller inside the ink coating printing machine chassis 320. After the ink coating printing machine chassis 320 applies ink to any printing area, the main controller controls the UV curing lamp 330 to turn on and controls the turning time to improve the curing effect of the ink.

[0049] In another embodiment, the ink-coating printing machine chassis 320 has multiple printheads. Specifically, the ink-coating printing machine chassis 320 uses three printheads to complete printing at one time, that is, the three printheads spray ink in a time-sharing manner during one movement.

[0050] In one embodiment, please refer to Figure 1 The folding vertical carton printing equipment 10 also includes a carton surface cleaning mechanism 500, which includes an upper carton conveyor belt 510 and a carton dust removal assembly 520. The upper carton conveyor belt 510 is mounted on the carton printing machine housing 100. Please refer to the attached document for further details. Figure 4 The carton dust removal assembly 520 includes a dust removal bracket 522, a first dust removal duct 524, and a carton loading barcode reader 526. The dust removal bracket 522 is mounted on the carton printing machine housing 100. The first dust removal duct 524 is mounted on the dust removal bracket 522, with its outlet facing the upper carton conveyor belt 510. The first dust removal duct 524 is used to output ion air to the folded upright carton to remove surface dust from the folded upright carton. The carton loading barcode reader 526 is connected to the dust removal bracket 522, with its reading end facing the upper carton conveyor belt 510. The carton loading barcode reader 526 is used to read the code of the folded upright carton to activate the first dust removal duct 524. In this embodiment, both the first dust removal duct 524 and the carton loading barcode reader 526 are mounted on the dust removal bracket 522. The carton loading barcode reader 526 collects the code of the folded upright carton to determine its type, thereby facilitating the determination of whether electrostatic dust removal is required. When dust removal is needed, the first dust removal duct 524 blows ionized air onto the surface of the folded upright carton based on the information read by the carton loading barcode reader 526, removing dust from the surface of the folded upright carton through electrostatic dust removal, facilitating subsequent ink application on the clean surface to form stable new coding information.

[0051] Further, please refer to Figure 4The carton dust removal assembly 520 further includes a first telescopic member 528, a second telescopic member 521, and a second dust removal duct 523. Both the first telescopic member 528 and the second telescopic member 521 are connected to the dust removal bracket 522. The lifting end of the first telescopic member 528 is connected to the carton loading barcode reader 526, allowing the carton loading barcode reader 526 to move closer to or further away from the upper carton conveyor belt 510. The lifting end of the second telescopic member 521 is connected to the second dust removal duct 523, allowing the second dust removal duct 523 to move closer to or further away from the upper carton conveyor belt 510. In this embodiment, the first telescopic member 528 serves as a movable component of the carton loading barcode reader 526, facilitating the extension and retraction of the carton loading barcode reader 526 above the upper carton conveyor belt 510. This allows the carton loading barcode reader 526 to read codes from the top and front and rear ends of the folded upright carton, thereby improving the accuracy of information collection from the folded upright carton. The second telescopic member 521 serves as a movable component of the second dust removal duct 523. Under the extension and retraction of the second telescopic member 521, the second dust removal duct 523 extends and retracts above the upper box conveyor belt 510, facilitating electrostatic dust removal of the top and front and rear ends of the folded upright carton by the second dust removal duct 523, thereby improving the dust removal effect of the folded upright carton.

[0052] In another embodiment, both the first telescopic member and the second telescopic member are sleeve rod structures, namely an outer tube and a lifting inner tube that are sleeved together. The outer tube is sleeved on the lifting inner tube and is connected to the dust removal bracket. The lifting inner tube slides through the outer tube. One end of the lifting inner tube serves as the lifting end, and the other end of the lifting inner tube is connected to the lifting cylinder or motor.

[0053] In one embodiment, please refer to Figure 1The folding upright carton printing equipment 10 also includes a carton printing proofreading mechanism 600. The carton printing proofreading mechanism 600 includes an unloading conveyor belt 610, a rejection conveyor belt 620, and a printing inspection component 630. The unloading conveyor belt 610 and the rejection conveyor belt 620 are both mounted on the carton printing machine housing 100, with the rejection conveyor belt 620 positioned adjacent to the unloading conveyor belt 610. The printing inspection component 630 includes a printing verification slide rail 632 and a printing verifier 634. The printing verification slide rail 632 is mounted on the carton printing machine housing 100, and the printing verifier 634 is slidably connected to the printing verification slide rail 632. The collecting end of the printing verifier 634 faces the unloading conveyor belt 610, and the printing verifier 634 is used to proofread the printing on the folding upright carton so that the rejection conveyor belt 620 can remove the folding upright carton with printing errors. In this embodiment, the unloading conveyor belt 610 and the printing verification device 634 are arranged opposite each other. The printing verification device 634 collects and verifies the printing on the folding upright cartons to determine whether there are any errors in the printing. Specifically, it detects the clarity of the printing and the correctness of the coding information. The rejection conveyor belt 620 works in conjunction with the unloading conveyor belt 610. When the printing on the folding upright cartons is error-free, the printing verification device 634 sends a continue transmission signal to the unloading conveyor belt 610 and a stop transmission signal to the rejection conveyor belt 620, allowing the error-free folding upright cartons to enter the next normal process. Conversely, when there is a printing error on the folding upright cartons, the printing verification device 634 sends a stop transmission signal to the unloading conveyor belt 610 and an start transmission signal to the rejection conveyor belt 620, causing the error-printed folding upright cartons to enter the NG process, thus preventing them from entering the next normal process.

[0054] In another embodiment, the unloading conveyor belt includes multiple sequentially arranged sub-belts, with a portion of the rejection conveyor belt located between any two adjacent sub-belts, such that the unloading conveyor belt and the rejection conveyor belt are interlocked. This ensures that the conveying surfaces are flush, facilitating the transport of folded upright cartons on different conveyor belts. This facilitates the screening of folded upright cartons, ensuring that qualified printed folded upright cartons are accurately delivered to the next production process, while unqualified printed folded upright cartons are rejected.

[0055] In one embodiment, this disclosure also relates to a carton printing machine, including the folding upright carton printing equipment described in any of the above embodiments. In this embodiment, the folding upright carton printing equipment includes a carton printing machine housing, a carton flipping mechanism, and a carton inking and printing device. The carton printing machine housing is used to house an upper carton conveyor belt and an unloading conveyor belt for transporting folding upright cartons. The folding upright carton flipping mechanism includes a transfer conveyor belt and a carton clamping and flipping assembly. The transfer conveyor belt is located between the upper carton conveyor belt and the unloading conveyor belt, and is used to transfer the folding upright carton. The carton clamping and flipping assembly is disposed on the carton printing machine housing, and is correspondingly disposed with the transfer conveyor belt. The clamping and flipping end of the carton clamping and flipping assembly is used to connect to the folding upright carton and the transfer conveyor belt respectively, so that the folding upright carton and the transfer conveyor belt flip together. The carton ink coating and printing device is mounted on the carton printing machine housing. This device is used to perform coding and ink coating operations on at least two surfaces of the folding upright carton. After the folding upright carton is placed on the transfer conveyor belt, the carton clamping and flipping assembly corresponds to the transfer conveyor belt, facilitating the clamping and flipping assembly to hold and fix the transfer conveyor belt and the folding upright carton together. When the carton ink coating and printing device performs multi-sided printing on the folding upright carton, the carton clamping and flipping assembly synchronously flips the transfer conveyor belt and the folding upright carton, ensuring the surface of the folding upright carton is flat and free from warping or deformation. This allows the carton ink coating and printing device to form codes containing various information on multiple surfaces of the folding upright carton through printing, eliminating the need for manual flipping and effectively improving the efficiency of multi-sided printing on the folding upright carton.

[0056] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent disclosure. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent disclosure should be determined by the appended claims.

Claims

1. A folding vertical cardboard box printing device, characterized in that, include: Cardboard box printing machine casing, A carton conveying device includes a carton flipping mechanism and a flipping power mechanism. The carton flipping mechanism includes a transfer conveyor belt and a carton clamping and flipping assembly. The transfer conveyor belt is located between the loading conveyor belt and the unloading conveyor belt and is used to transfer folded upright cartons. The carton clamping and flipping assembly is mounted on the carton printing machine chassis and is correspondingly arranged with the transfer conveyor belt. The clamping and flipping end of the carton clamping and flipping assembly is used to connect to both the folded upright carton and the transfer conveyor belt, so that the folded upright carton and the transfer conveyor belt flip together. The carton clamping and flipping assembly includes two opposing flipping clamping and fixing members, each of which includes a flipping rotation mechanism. The machine includes a shaft and a carton clamping plate, the carton clamping plate being located on the side of the transfer conveyor belt and abutting against the folding upright carton and the transfer conveyor belt. The flipping rotating shaft is connected to the carton clamping plate. The flipping power mechanism includes a flipping rotating base, a swing connecting shaft, a push-pull connecting shaft, and a flipping push-pull cylinder. The flipping rotating base has a rotating shaft receiving hole, the flipping rotating shaft passing through the rotating shaft receiving hole, and one end of the flipping rotating shaft away from the carton clamping plate being connected to the swing connecting shaft. The swing connecting shaft is rotatably connected to the push-pull connecting shaft, and the push-pull connecting shaft is also connected to the telescopic end of the flipping push-pull cylinder, which is mounted on the carton printing machine housing. A carton ink coating and printing device is installed on the carton printing machine housing, with the printing end of the carton ink coating and printing device facing the transfer conveyor belt, so as to perform multi-sided ink coating and printing on the folded upright carton. The flipping power mechanism further includes a flipping angle positioning component, which includes a flipping bracket and a flipping positioning support rod connected to each other. The flipping bracket is disposed on the carton printing machine housing, and the flipping positioning support rod is disposed adjacent to the flipping rotation shaft. The rotation angle formed by the flipping rotation shaft and the two flipping positioning support rods at their respective contact positions is 90°. The carton clamping and flipping assembly further includes a first clamping member, a second clamping member, and a third clamping member. The first clamping member includes a first clamping cylinder and a first clamping plate. The first clamping cylinder is connected to the carton clamping fixing plate, and the telescopic end of the first clamping cylinder is connected to the first clamping plate. The first clamping plate and the carton clamping fixing plate are arranged parallel to each other. The first clamping plate is used to abut against the first surface of the folded upright carton. The carton clamping fixing plate has a through hole, and the telescopic end of the first clamping cylinder passes through the through hole so that the first clamping plate moves closer to or further away from the folded upright carton. The second clamping component includes a second clamping cylinder and a second clamping clamp. The second clamping cylinder is connected to the carton clamping and fixing plate. The telescopic end of the second clamping cylinder is connected to the second clamping clamp. The second clamping clamp and the carton clamping and fixing plate are arranged perpendicularly to each other. The second clamping clamp is used to abut against the second surface of the folded upright carton. The second clamping clamp includes a clamping base plate and a turning connecting part that are connected to each other. The clamping base plate abuts against the second surface of the folded upright carton. The turning connecting part corresponds to the first surface of the folded upright carton. The turning connecting part is detachably connected to the telescopic end of the second clamping cylinder. The third clamping component includes a third clamping cylinder and a clamping hinge claw. The third clamping cylinder is connected to the carton clamping and fixing plate. The telescopic end of the third clamping cylinder is connected to the clamping hinge claw. The clamping hinge claw is used to abut against the third surface of the folded upright carton. The third surface of the folded upright carton is perpendicular to both the first and second surfaces of the folded upright carton.

2. The folding vertical carton printing equipment according to claim 1, characterized in that, The flipping positioning and holding rod is located on the rotating fan surface corresponding to the rotation trajectory of the flipping rotation axis.

3. The folding vertical carton printing equipment according to claim 1, characterized in that, The number of the flipping angle positioning components is two, and the two flipping angle positioning components are arranged opposite to each other.

4. The folding vertical carton printing equipment according to claim 1, characterized in that, The carton ink coating and printing device includes a printing displacement component, an ink coating and printing machine chassis, and an ultraviolet curing lamp. The printing displacement component is disposed on the carton printing machine chassis, and the ink coating and printing machine chassis is connected to the moving end of the printing displacement component. The printing end of the ink coating and printing machine chassis faces the carton printing machine chassis. The ultraviolet curing lamp is disposed on the ink coating and printing machine chassis, and the ultraviolet curing lamp and the ink coating and printing machine chassis are arranged sequentially along the transmission direction of the transfer conveyor belt. The curing light output end of the ultraviolet curing lamp faces the carton printing machine chassis.

5. The folding vertical carton printing equipment according to claim 1, characterized in that, The folding upright carton printing equipment also includes a carton surface cleaning mechanism, which includes an upper conveyor belt and a carton dust removal assembly. The upper conveyor belt is mounted on the carton printing machine chassis. The carton dust removal assembly includes a dust removal bracket, a first dust removal duct, and a carton loading barcode reader. The dust removal bracket is mounted on the carton printing machine chassis, and the first dust removal duct is mounted on the dust removal bracket. The outlet end of the first dust removal duct faces the upper conveyor belt and is used to output ion air to the folding upright carton to remove surface dust. The carton loading barcode reader is connected to the dust removal bracket, and its reading end faces the upper conveyor belt. The carton loading barcode reader is used to read the code of the folding upright carton to activate the first dust removal duct.

6. The folding vertical carton printing equipment according to claim 5, characterized in that, The carton dust removal assembly further includes a first telescopic member, a second telescopic member, and a second dust removal duct. Both the first and second telescopic members are connected to the dust removal bracket. The lifting end of the first telescopic member is connected to the carton loading barcode reader so that the carton loading barcode reader is closer to or farther from the upper carton conveyor belt. The lifting end of the second telescopic member is connected to the second dust removal duct so that the second dust removal duct is closer to or farther from the upper carton conveyor belt.

7. The folding vertical carton printing equipment according to claim 1, characterized in that, The folding upright carton printing equipment also includes a carton printing proofreading mechanism, which includes an unloading conveyor belt, a rejection conveyor belt, and a printing inspection component. The unloading conveyor belt and the rejection conveyor belt are both mounted on the carton printing machine housing, with the rejection conveyor belt positioned adjacent to the unloading conveyor belt. The printing inspection component includes a printing verification slide rail and a printing verifier. The printing verification slide rail is mounted on the carton printing machine housing, and the printing verifier is slidably connected to the printing verification slide rail. The collecting end of the printing verifier faces the unloading conveyor belt, and the printing verifier is used to proofread the printing on the folding upright carton so that the rejection conveyor belt can be driven to remove the folding upright carton with printing errors.

8. A cardboard box printing machine, characterized in that, The folding vertical carton printing equipment includes any one of claims 1 to 7.

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