A packaging box surface printing process

Abstract

The application discloses a packaging color box surface printing process and relates to the color box printing technical field.The printing equipment comprises an ink detection assembly, a printing roller is rotationally connected to the inside of a detection compartment box, a spray head is connected to the upper end of an A three-way valve, an ink conveying pipe is connected to the middle end of the A three-way valve, and a color detector is fixed above the printing roller on the top of the compartment of the detection compartment box.The packaging color box surface printing process is characterized in that: the ink supplied each time reaches the A three-way valve through the ink conveying pipe, the color of the supplied ink needs to be detected at this time, the ink is sprayed onto the surface of the printing roller, and then the color detector is used to detect whether the color of the ink on the surface of the printing roller is consistent with the color of the previously used ink, so that the color of the ink supplied each time is detected once, the ink used in batches is ensured to be of the same color type, and the printed color box pattern is ensured to be of the same color without color difference or color inconsistency, so that the color is clear and consistent.

Description

Technical Field

[0001] This invention relates to the field of color box printing technology, specifically to a surface printing process for packaging color boxes. Background Technology

[0002] Packaging boxes are boxes used to package products. Packaging boxes can ensure the safety of products during transportation. In order to beautify the packaging, various patterns are often printed on the product packaging boxes to improve the packaging grade. Therefore, printing equipment is required.

[0003] Existing printing equipment, including ink printing, requires sufficient ink when printing on the surface of packaging boxes. However, existing printing equipment often does not check the ink color when adding ink. As a result, when the ink color is incorrect or the ink quality is inconsistent, the surface pattern of the box printed by the two batches of ink will have color difference or inconsistency.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a printing process for the surface of packaging boxes. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a surface printing process for packaging color boxes, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a surface printing process for packaging color boxes, wherein the surface printing process for packaging color boxes, based on printing equipment, includes the following operational steps:

[0007] Step 1: There are two sets of snap-fit ​​assembly substrates, ink reservoirs, and ink filling ports, each with a one-to-one correspondence. The two sets of snap-fit ​​assembly substrates, ink reservoirs, and ink filling ports are used in turn. That is, ink is filled into the snap-fit ​​assembly substrate and ink reservoir through the ink filling port. This is the A reservoir. At this time, the expansion of this set of ink reservoirs causes the snap-fit ​​assembly plate to move to one side under force, which causes the other ink reservoir, the B reservoir, to be compressed under force.

[0008] After the ink in bladder A is used up, the liquid level sensor detects that the ink is insufficient and sends an ink refill prompt to the ink refilling personnel. The ink refilling personnel inject the corresponding ink into the other ink refill port according to the ink color and pattern indication on the surface of the ink cartridge. At this time, bladder B expands while bladder A is compressed. Since there are two different types of ink in bladder A and bladder B and they do not mix with each other, the ink in bladder B reaches bladder A through the ink supply tube via bladder B three-way valve when in use.

[0009] Step 2: After the ink inside the B bladder reaches the A three-way valve, it needs to be color-tested. At this time, the A three-way valve closes the ink injection tube and opens the printhead, so that the ink inside the B bladder is sprayed onto the surface of the inking roller. The inking roller is rotated by the motor to make its surface evenly inked. Then, the color detector is used to check whether the color of the ink on the surface of the inking roller is consistent with the color of the ink used in the A bladder. If they are consistent, proceed to the next stage.

[0010] That is, the printhead is closed and the ink injection tube channel is open, so that the ink inside the B bag enters the inkjet cartridge along the ink injection tube. The color box to be printed is placed flat on the surface of the conveyor belt. The conveyor belt moves the color box, and at the same time, the electric lifting push rod carries the inkjet cartridge down to approach the color box. The output motor drives the reciprocating screw to make the inkjet cartridge move back and forth to spray ink onto the surface of the color box on the conveyor belt, thereby realizing the printing of the pattern on the surface of the color box.

[0011] Step 3: If the color detector detects that the ink color on the surface of the inking roller is inconsistent with the ink color used in the A cartridge, the ink filling tube channel and printhead are closed, the external prompting device of the color detector issues a prompt to the staff, and the printing operation is paused. After the staff determines the location of the B cartridge according to the prompt, the ink inside is extracted, and the snap-fit ​​assembly board is disassembled to remove the B cartridge. Then the snap-fit ​​assembly board of the B cartridge is disassembled to expose the ink reservoir and the inside of the snap-fit ​​assembly board of the B cartridge for cleaning. During this process, the cause of the incorrect ink color in the B cartridge is determined. After clarifying the cause, ink is selected again to replenish the A cartridge, and the ink detection process is repeated. After the ink reservoir and the inside of the snap-fit ​​assembly board of the B cartridge are cleaned, the snap-fit ​​assembly board is rinsed, reassembled, and inserted into the ink cartridge. The snap-fit ​​assembly board is then reassembled, and the B cartridge is put back into use.

[0012] Step 4: After the color detector finishes detecting the ink color on the surface of the inking roller, the inking roller rotates and comes into contact with the cleaning cotton roller on its side. The cleaning cotton roller then removes the ink from the surface of the inking roller, so that the inking roller can enter the preparation stage for the next color detection after the ink is removed.

[0013] After cleaning, the cleaning cotton roller needs to be periodically removed from the testing compartment box, cleaned again, and then reinserted into the testing compartment box for reuse.

[0014] Furthermore, the printing equipment includes an ink detection assembly, which includes a detection chamber, an inking roller, an A-type three-way valve, a printhead, an ink injection tube, an ink supply tube, and a colorimeter. The inking roller is rotatably connected inside the detection chamber, and an A-type three-way valve is provided on the side of the detection chamber. The upper end of the A-type three-way valve is connected to the printhead, and the lower end of the A-type three-way valve is connected to the ink injection tube. The middle end of the A-type three-way valve is connected to the ink supply tube. A colorimeter is fixed on the top of the chamber above the inking roller.

[0015] Furthermore, the ink detection assembly also includes a cleaning cotton roller, which is attached to the side of the ink roller and is inserted through and rotatably connected to the inside of the detection compartment.

[0016] Furthermore, the bottom of the testing compartment is fixed with a guide rail bracket, and electric lifting push rods are installed inside both sides of the guide rail bracket.

[0017] Furthermore, a slider is connected to the top of the electric lifting push rod, and a reciprocating lead screw is inserted inside the slider and the guide rail bracket.

[0018] Furthermore, an output motor is connected to the end of the reciprocating lead screw, and an inkjet cartridge is fitted onto the surface of the reciprocating lead screw.

[0019] Furthermore, an ink filling tube is connected to the top of the inkjet cartridge, and a conveyor belt is provided directly below the inkjet cartridge.

[0020] Furthermore, the end of the ink supply tube furthest from the A three-way valve is connected to an ink cartridge assembly. The ink cartridge assembly includes an ink cartridge, a snap-fit ​​assembly base plate, an ink reservoir, a snap-fit ​​assembly middle plate, a B three-way valve, and a liquid level sensor. The snap-fit ​​assembly base plate is inserted into the inside of the ink cartridge at an angle on both sides, and the ink reservoir is connected to the side of the snap-fit ​​assembly base plate. The snap-fit ​​assembly middle plate is connected between the ink reservoirs. The B three-way valve is connected to one side of the snap-fit ​​assembly base plate, and a liquid level sensor is installed inside the ink reservoir.

[0021] Furthermore, the snap-fit ​​assembly substrate is connected to the ink supply tube via a B three-way valve, and the interior of the snap-fit ​​assembly substrate is connected to the interior of the ink storage bladder.

[0022] Furthermore, the ink cartridge assembly also includes an ink filling port, and the end of the snap-fit ​​assembly substrate away from the B three-way valve is provided with an ink filling port, which is exposed outside the ink cartridge.

[0023] This invention provides a printing process for the surface of packaging boxes, which has the following beneficial effects:

[0024] 1. In the printing process of this packaging box, each time the ink is replenished, it reaches the A three-way valve along the ink supply tube. At this time, the color of the replenished ink needs to be tested. The ink is sprayed onto the surface of the inking roller, and then a color detector is used to check whether the color of the ink on the surface of the inking roller is consistent with the color of the ink used before. Thus, a color test is performed on each replenished ink to ensure that the ink used in the previous batch is of the same color type. This ensures that the printed color box pattern has the same color without color difference or inconsistency, and ensures clear and consistent color.

[0025] 2. In the printing process of this packaging box, the inking roller rotates and adheres to the cleaning cotton roller on its side. The cleaning cotton roller removes the ink from the surface of the inking roller. The motor drives the cleaning cotton roller to rotate to enhance the cleaning effect, so that the inking roller can enter the preparation stage for the next color detection after the ink is removed. After cleaning, the cleaning cotton roller needs to be periodically pulled out from the detection compartment, cleaned again, and then reinserted into the detection compartment for reuse. Moreover, the cleaning cotton roller is connected to the motor and the detection compartment by plugging and unplugging, which facilitates disassembly and cleaning to ensure that the surface of the inking roller is clean.

[0026] 3. In the printing process of this packaging box, if the ink color is inconsistent with the previously used ink color, the external prompting device of the color detector will issue a prompt to the staff and suspend the printing operation. After the staff determines the location according to the prompt, they will extract the ink from the corresponding ink reservoir and disassemble the snap-fit ​​assembly plate to remove reservoir A or B. Then, they will disassemble the snap-fit ​​assembly substrate of reservoir A or B to expose and clean the inside of the ink reservoir and snap-fit ​​assembly substrate. After the inside of the ink reservoir and snap-fit ​​assembly substrate of reservoir A or B is cleaned, the snap-fit ​​assembly substrate is rinsed, reassembled, and inserted into the ink cartridge. The snap-fit ​​assembly plate is then reassembled, allowing reservoir A or B to be used again. Retention is achieved between reservoir A and B, as they do not interfere with each other. Therefore, even if an ink color mismatch is detected, it will not interfere with the other ink reservoir. Furthermore, the snap-fit ​​assembly substrate and snap-fit ​​assembly plate can be disassembled and separated, allowing for cleaning of the space inside the reservoir with the incorrect ink color, enabling reuse and reducing cleaning difficulty. Attached Figure Description

[0027] Figure 1 This is a top view of the internal structure of the ink cartridge of the present invention;

[0028] Figure 2 This is a side view of the internal structure of the ink cartridge of the present invention;

[0029] Figure 3 This is a side view of the internal structure of the detection compartment box of the present invention;

[0030] Figure 4 This is a front view schematic diagram of the inking roller structure of the present invention;

[0031] Figure 5 This is a front view structural diagram of the inkjet cartridge of the present invention.

[0032] In the diagram: 1. Ink detection assembly; 101. Detection chamber; 102. Inking roller; 103. A three-way valve; 104. Printhead; 105. Ink filling tube; 106. Ink supply tube; 107. Color detector; 108. Cleaning cotton roller; 2. Guide rail bracket; 3. Electric lifting push rod; 4. Slider; 5. Reciprocating lead screw; 6. Output motor; 7. Inkjet cartridge; 8. Conveyor belt; 9. Ink cartridge assembly; 901. Ink cartridge loading; 902. Snap-fit ​​assembly base plate; 903. Ink reservoir; 904. Snap-fit ​​assembly middle plate; 905. B three-way valve; 906. Liquid level sensor; 907. Ink filling port. Detailed Implementation

[0033] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0034] like Figures 1-5 As shown, the present invention provides a technical solution: a surface printing process for packaging color boxes, which, based on printing equipment, includes the following operational steps:

[0035] Step 1: There are two sets of snap-fit ​​assembly substrate 902, ink reservoir 903, and ink filling port 907, which are provided in a one-to-one correspondence. The two sets of snap-fit ​​assembly substrate 902, ink reservoir 903, and ink filling port 907 are used in turn. That is, ink is filled into the snap-fit ​​assembly substrate 902 and ink reservoir 903 through the ink filling port 907. This is the A reservoir. At this time, the expansion of the ink reservoir 903 causes the snap-fit ​​assembly plate 904 to move to one side under force, which causes the other ink reservoir 903, namely the B reservoir, to be compressed under force.

[0036] After the ink in bladder A is used up, the liquid level sensor 906 senses that the ink is insufficient and sends an ink refill prompt to the ink refilling personnel. The ink refilling personnel inject the corresponding ink into the other ink refill port 907 according to the ink color and pattern indication on the surface of the ink cartridge 901. At this time, bladder B expands while bladder A is compressed. Since the ink in bladder A and bladder B is of two different types and does not mix with each other, the ink in bladder B reaches bladder A three-way valve 103 through bladder B three-way valve 905 along ink supply pipe 106 when in use.

[0037] Step 2: After the ink inside the B bladder reaches the A three-way valve 103, it needs to be color-tested. At this time, the A three-way valve 103 closes the ink injection tube 105 and opens the nozzle 104, so that the ink inside the B bladder is sprayed onto the surface of the inking roller 102. The inking roller 102 is rotated by a motor to make its surface evenly inked. Then, the color detector 107 is used to detect whether the ink color on the surface of the inking roller 102 is consistent with the ink color used in the A bladder. If they are consistent, proceed to the next stage.

[0038] When the printhead 104 is closed and the ink injection tube 105 is open, the ink inside the B bag enters the inkjet cartridge 7 along the ink injection tube 105. The color box to be printed is placed flat on the surface of the conveyor belt 8. The conveyor belt 8 moves the color box, and at the same time, the electric lifting push rod 3 carries the inkjet cartridge 7 down to approach the color box. The output motor 6 drives the reciprocating screw 5 to make the inkjet cartridge 7 move back and forth to spray ink onto the surface of the color box on the conveyor belt 8, thereby realizing the printing of the pattern on the surface of the color box.

[0039] Step 3: If the color detector 107 detects that the ink color on the surface of the inking roller 102 is inconsistent with the ink color used in the A cartridge, the ink filling tube 105 channel and the printhead 104 are closed. The external prompting device of the color detector 107 issues a prompt to the operator and suspends the printing operation. After the operator determines the location of the B cartridge according to the prompt, the ink inside is extracted. The B cartridge is then removed by disassembling the snap-fit ​​assembly plate 904. Subsequently, the snap-fit ​​assembly substrate 902 of the B cartridge is disassembled to expose the ink storage sac 903 and the inside of the snap-fit ​​assembly substrate 902 of the B cartridge and clean them. During this process, the reason for the incorrect ink color in the B cartridge is determined. After clarifying the reason, ink is selected again to replenish the A cartridge and the ink detection process is repeated. After the inside of the ink storage sac 903 and the snap-fit ​​assembly substrate 902 of the B cartridge is cleaned, the snap-fit ​​assembly substrate 902 is rinsed, assembled, and inserted into the ink cartridge 901. The snap-fit ​​assembly plate 904 is then reassembled, allowing the B cartridge to be used again.

[0040] Step 4: After the color detector 107 has finished detecting the ink color on the surface of the inking roller 102, the inking roller 102 rotates and comes into contact with the cleaning cotton roller 108 on its side. The cleaning cotton roller 108 then removes the ink from the surface of the inking roller 102, so that the inking roller 102 can enter the preparation stage for the next color detection after the ink is removed.

[0041] After cleaning, the cleaning cotton roller 108 needs to be periodically removed from the detection compartment box 101, cleaned again, and then reinserted into the detection compartment box 101 for continued use.

[0042] like Figures 3-5 As shown, the printing equipment includes an ink detection assembly 1, which includes a detection chamber 101, an inking roller 102, an A three-way valve 103, a printhead 104, an ink injection tube 105, an ink supply tube 106, and a color detector 107. The inking roller 102 is rotatably connected inside the detection chamber 101, and the A three-way valve 103 is provided on the side of the detection chamber 101. The printhead 104 is connected to the upper end of the A three-way valve 103, the ink injection tube 105 is connected to the lower end of the A three-way valve 103, and the ink supply tube 106 is connected to the middle end of the A three-way valve 103. The color detector 107 is fixed on the top of the chamber of the detection chamber 101 above the inking roller 102.

[0043] The specific operation is as follows: Each time the ink is replenished, it reaches the A three-way valve 103 along the ink supply tube 106. At this time, the color of the replenished ink needs to be detected. The A three-way valve 103 closes the ink supply tube 105 and opens the printhead 104, so that the ink is sprayed onto the surface of the inking roller 102. The inking roller 102 is rotated by a motor to make its surface evenly inked. Then, the color detector 107 is used to detect whether the ink color on the surface of the inking roller 102 is consistent with the ink color used before. If it is consistent, it enters the next stage, that is, the printhead 104 is closed and the ink supply tube 105 is opened, so that the ink enters the inkjet cartridge 7 along the ink supply tube 105 to wait for use. In this way, the color of each replenished ink is detected to ensure that the ink used in the previous batch is of the same color type, thereby ensuring that the printed color box pattern has the same color without color difference or inconsistency.

[0044] like Figures 3-5 As shown, the ink detection assembly 1 also includes a cleaning cotton roller 108. The cleaning cotton roller 108 is attached to the side of the ink roller 102, and the cleaning cotton roller 108 is inserted through and rotatably connected to the inside of the detection compartment box 101.

[0045] The specific operation is as follows: After the color detector 107 completes the ink color detection on the surface of the inking roller 102, the inking roller 102 rotates and comes into contact with the cleaning cotton roller 108 on its side. The cleaning cotton roller 108 then removes the ink from the surface of the inking roller 102. The cleaning cotton roller 108 can be connected to a motor, which drives the cleaning cotton roller 108 to rotate to enhance the cleaning effect, so that the inking roller 102 can enter the preparation stage for the next color detection after the ink is removed. After cleaning, the cleaning cotton roller 108 needs to be periodically removed from the detection compartment box 101, cleaned again, and then reinserted into the detection compartment box 101 for reuse.

[0046] Therefore, by cleaning the surface of the inking roller 102 after each inking by the cleaning cotton roller 108, the surface of the inking roller 102 can be quickly restored to cleanliness so that the next color detection operation can be carried out. The inking rollers 102 are distributed in each compartment inside the detection compartment box 101 so that the inking rollers 102 do not interfere with each other. Moreover, the cleaning cotton roller 108 is connected to the motor and the detection compartment box 101 by plugging and unplugging, which facilitates disassembly and cleaning in the future to ensure that the surface of the inking roller 102 is clean.

[0047] like Figure 5As shown, the bottom of the test compartment box 101 is fixed with a guide rail bracket 2, and electric lifting push rods 3 are provided inside both sides of the guide rail bracket 2. The top of the electric lifting push rod 3 is connected to a slider 4, and a reciprocating screw 5 is passed through the slider 4 and the guide rail bracket 2. The end of the reciprocating screw 5 is connected to an output motor 6, and an inkjet cartridge 7 is sleeved on the surface of the reciprocating screw 5. The top of the inkjet cartridge 7 is connected to an ink filling tube 105, and a conveyor belt 8 is provided directly below the inkjet cartridge 7.

[0048] The specific operation is as follows: the color box to be printed is placed flat on the surface of the conveyor belt 8. The conveyor belt 8 drives the color box to move. At the same time, the electric lifting push rod 3 carries the inkjet cartridge 7 down to approach the color box. The output motor 6 drives the reciprocating screw 5 to make the inkjet cartridge 7 move back and forth to spray ink onto the surface of the color box on the conveyor belt 8, thereby realizing the printing of the pattern on the surface of the color box.

[0049] like Figures 1-3 As shown, the end of the ink supply tube 106 furthest from the A three-way valve 103 is connected to an ink cartridge assembly 9. The ink cartridge assembly 9 includes an ink cartridge 901, a snap-fit ​​assembly base plate 902, an ink reservoir 903, a snap-fit ​​assembly middle plate 904, a B three-way valve 905, and a liquid level sensor 906. The snap-fit ​​assembly base plate 902 is inserted into the interior of the ink cartridge 901 at an angle on both sides, and the ink reservoir 903 is connected to the side of the snap-fit ​​assembly base plate 902. The snap-fit ​​assembly middle plate 904 connects the ink reservoirs 903. One end of the assembly substrate 902 is connected to a B three-way valve 905. The ink reservoir 903 is equipped with a liquid level sensor 906. The snap-fit ​​assembly substrate 902 is connected to the ink supply tube 106 through the B three-way valve 905. The interior of the snap-fit ​​assembly substrate 902 is connected to the interior of the ink reservoir 903. The ink cartridge assembly 9 also includes an ink filling port 907. The end of the snap-fit ​​assembly substrate 902 away from the B three-way valve 905 is provided with an ink filling port 907, and the ink filling port 907 is exposed outside the ink cartridge 901.

[0050] The specific operation is as follows: There are two sets of snap-fit ​​assembly substrate 902, ink reservoir 903, and ink filling port 907, which are in one-to-one correspondence. The two sets of snap-fit ​​assembly substrate 902, ink reservoir 903, and ink filling port 907 are used in turn. The two reservoirs are called reservoir A and reservoir B. When one of reservoir A and reservoir B is replenished with ink, the other reservoir will be compressed. Reservoirs A and B are tilted in the ink cartridge 901 so that the ink can be fully utilized. The liquid level sensor 906 is set at a lower position to accurately control the remaining ink and promptly remind personnel that ink needs to be replenished. The color detection operation is activated every time the ink is detected from depletion to full. The color detection operation does not work at other times.

[0051] After replenishment, the ink in both ink reservoirs A and B undergoes color testing. If the ink color differs from the previously used ink, the ink supply tube 105 and printhead 104 are closed. The external prompting device of the color detector 107 alerts the operator, and printing is paused. Following the prompt, the operator locates the corresponding ink reservoir 903, extracts the ink, and disassembles the snap-fit ​​assembly plate 904 to remove either ink reservoir A or B. Subsequently, the snap-fit ​​assembly substrate 902 of ink reservoir A or B is disassembled to expose and clean the interior of the ink reservoir 903 and the snap-fit ​​assembly substrate 902. During this process, the cause of the incorrect ink color is determined, and after clarifying the cause... The ink is reselected and added to another cartridge, and the ink detection process is repeated. After the ink storage cartridge 903 and the snap-fit ​​assembly substrate 902 of cartridge A or B are cleaned, the snap-fit ​​assembly substrate 902 is rinsed, assembled, and inserted into the ink cartridge 901. The snap-fit ​​assembly middle plate 904 is then reassembled, allowing cartridge A or B to be used again. Cartridges A and B do not interfere with each other, so even if an incorrect ink color is detected, it will not interfere with the other cartridge. Furthermore, the snap-fit ​​assembly substrate 902 and the snap-fit ​​assembly middle plate 904 can be disassembled to clean the space inside the cartridge with the incorrect ink color, so as to restore it to reuse and reduce the cleaning difficulty.

[0052] In summary, as Figures 1-5 As shown, the printing process on the surface of this packaging box involves two sets of snap-fit ​​assembly substrates 902, ink reservoirs 903, and ink inlets 907, each corresponding to a specific component. These two sets of snap-fit ​​assembly substrates 902, ink reservoirs 903, and ink inlets 907 are used alternately. Ink is injected into the snap-fit ​​assembly substrates 902 and ink reservoirs 903 through the ink inlet 907 (this is reservoir A). At this time, the expansion of this set of ink reservoirs 903 causes the snap-fit ​​assembly plate 904 to move to one side, thus causing the other... The ink reservoir 903, or bladder B, is compressed under force. After the ink in bladder A is used up, the liquid level sensor 906 senses that the ink is insufficient and sends an ink refill prompt to the ink refilling personnel. The ink refilling personnel inject the corresponding ink into the other ink refill port 907 according to the ink color and pattern indication on the surface of the ink cartridge 901. At this time, bladder B expands while bladder A is compressed. Since the ink in bladder A and bladder B is of two different types and does not mix with each other, the ink in bladder B reaches bladder A three-way valve 103 through bladder B three-way valve 905 along ink supply tube 106 when in use.

[0053] After the ink inside the B bladder reaches the A three-way valve 103, it needs to be color-tested. At this time, the A three-way valve 103 closes the ink injection tube 105 and opens the printhead 104, so that the ink inside the B bladder is sprayed onto the surface of the inking roller 102. The inking roller 102 is rotated by a motor to make its surface evenly inked. Then, the color detector 107 is used to detect whether the color of the ink on the surface of the inking roller 102 is consistent with the color of the ink used in the A bladder. If they are consistent, the next stage is entered; that is, the printhead 104 is closed and the ink injection tube 105 is opened, so that the ink inside the B bladder enters the inkjet cartridge 7 along the ink injection tube 105. The color box to be printed is placed flat on the surface of the conveyor belt 8. The conveyor belt 8 moves the color box, and at the same time, the electric lifting push rod 3 carries the inkjet cartridge 7 down to approach the color box. The output motor 6 drives the reciprocating screw 5 to make the inkjet cartridge 7 move back and forth to spray ink onto the surface of the color box on the conveyor belt 8, thereby realizing the printing of the pattern on the surface of the color box.

[0054] If the color detector 107 detects that the ink color on the surface of the inking roller 102 is inconsistent with the ink color previously used in cartridge A, the ink filling tube 105 channel and the printhead 104 are closed. The external prompting device of the color detector 107 issues a prompt to the operator and suspends the printing operation. After the operator determines the location of cartridge B according to the prompt, the ink inside is extracted, and the snap-fit ​​assembly plate 904 is disassembled to remove cartridge B. Then, the snap-fit ​​assembly substrate 902 of cartridge B is disassembled to expose the ink storage sac 903 and the inside of the snap-fit ​​assembly substrate 902 of cartridge B and clean them. During this process, the reason for the incorrect ink color in cartridge B is determined. After clarifying the reason, ink is selected again to replenish cartridge A and the ink detection process is repeated. After the inside of the ink storage sac 903 and the snap-fit ​​assembly substrate 902 of cartridge B is cleaned, the snap-fit ​​assembly substrate 902 is rinsed, assembled and inserted into the ink cartridge 901, and the snap-fit ​​assembly plate 904 is reassembled so that cartridge B can be used again.

[0055] After the color detector 107 has completed the ink color detection on the surface of the inking roller 102, the inking roller 102 rotates and comes into contact with the cleaning cotton roller 108 on its side. The cleaning cotton roller 108 then removes the ink from the surface of the inking roller 102, so that the inking roller 102 can enter the preparation stage for the next color detection after the ink is removed. After cleaning, the cleaning cotton roller 108 needs to be periodically pulled out from the detection compartment box 101, cleaned again, and then reinserted into the detection compartment box 101 for use.

[0056] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A packaging carton surface printing process characterized by: The packaging color box surface printing process based on the printing equipment comprises the following operation steps: Step one: the clamping assembly substrate (902), ink storage bag (903), ink injection port (907) are respectively provided with two and one-to-one correspondence, two groups of clamping assembly substrate (902), ink storage bag (903), ink injection port (907) are used alternately, that is, the ink injection port (907) of one group is used to fill the inside of the corresponding clamping assembly substrate (902) and ink storage bag (903) with ink, which is A bag, at this time, the ink storage bag (903) of this group expands to make the clamping assembly middle plate (904) move to one side under stress, so that the ink storage bag (903) of the other group, that is, B bag, is compressed under stress; After the ink in the A bag is used up, the liquid level sensor (906) senses that the ink is insufficient and sends an ink injection prompt to the staff, the staff injects the corresponding ink into the other ink injection port (907) according to the ink color type prompt on the surface of the ink filling box (901), at this time, the B bag expands and the A bag is compressed, since the A bag and the B bag are two kinds of ink and do not mix with each other, the ink in the B bag is used through the B three-way valve (905) along the ink conveying pipe (106) to the A three-way valve (103); Step two: the ink in the B bag needs to be color detected after reaching the A three-way valve (103), at this time, the A three-way valve (103) closes the ink injection pipe (105) channel and opens the nozzle (104), so that the ink in the B bag is sprayed to the surface of the ink roller (102), the ink roller (102) is rotated by the motor to make the surface of the ink roller (102) uniformly inked, and then the color detection instrument (107) is used to detect whether the color of the ink on the surface of the ink roller (102) is consistent with the color of the ink in the A bag, if consistent, then enter the next stage; That is, the nozzle (104) is closed and the ink injection pipe (105) channel is opened, so that the ink in the B bag enters the inside of the inkjet box (7) along the ink injection pipe (105), and the color box to be printed is placed on the surface of the conveying belt (8), the conveying belt (8) drives the color box to move, at the same time, the electric lifting push rod (3) carries the inkjet box (7) to descend and approach the color box, the output motor (6) drives the reciprocating screw rod (5) to make the inkjet box (7) reciprocate to print ink on the surface of the color box on the conveying belt (8), thereby realizing the pattern printing on the surface of the color box. Step three: if the color detector (107) detects that the ink color on the surface of the inking roller (102) is inconsistent with the ink color used in the previous A capsule, the ink injection pipe (105) channel and the nozzle (104) are closed, the color detector (107) is connected to the prompting device to prompt the staff, and the printing operation is suspended. The staff determines the position of the B capsule after the ink in the B capsule is pumped out, disassembles the clamping assembly middle plate (904) to take out the B capsule, then disassembles the clamping assembly base plate (902) of the B capsule to expose and clean the ink storage capsule (903) and the clamping assembly base plate (902) inside, determines the reason for the inconsistent ink color in the B capsule, and after the reason is clarified, selects the ink again to supplement it to the A capsule and repeats the ink color detection process. After the ink storage capsule (903) and the clamping assembly base plate (902) inside the B capsule are cleaned, the clamping assembly base plate (902) is washed and assembled and inserted into the ink cartridge (901), and the clamping assembly middle plate (904) is reassembled, so that the B capsule can be restored to use; Step four: after the color detector (107) detects the ink color on the surface of the inking roller (102), the inking roller (102) rotates and is attached to the cleaning cotton roller (108) on its side. The cleaning cotton roller (108) thus removes the ink on the surface of the inking roller (102), so that the inking roller (102) can enter the preparation stage for the next ink color detection after the ink is removed. The cleaning cotton roller (108) needs to be periodically removed from the inside of the detection compartment box (101) after cleaning, and then reinserted into the detection compartment box (101) after cleaning and restored to use.

2. A process for printing on the surface of a packaging box according to claim 1, characterized in that: The printing device comprises an ink detection assembly (1), which comprises a detection compartment box (101), an inking roller (102), an A three-way valve (103), a nozzle (104), an ink injection pipe (105), an ink delivery pipe (106) and a color detector (107). The inside of the detection compartment box (101) is rotatably connected with the inking roller (102), and the side of the detection compartment box (101) is provided with the A three-way valve (103). The upper end of the A three-way valve (103) is connected with the nozzle (104), and the lower end of the A three-way valve (103) is connected with the ink injection pipe (105). The middle part of the A three-way valve (103) is connected with the ink delivery pipe (106). The top of the compartment of the detection compartment box (101) is fixed with the color detector (107) above the inking roller (102).

3. A process for printing on the surface of a packaging box according to claim 2, characterized in that: The ink detection assembly (1) further comprises a cleaning cotton roller (108), which is attached to the side of the inking roller (102) and rotatably connected inside the detection compartment box (101).

4. A process for printing on the surface of a packaging box according to claim 2, characterized in that: The bottom of the detection compartment box (101) is fixed with a guide rail bracket (2), and the inside of the guide rail bracket (2) on both sides is provided with an electric lifting push rod (3).

5. A process for printing on the surface of a packaging box according to claim 4, characterized in that: The top of the electric lifting push rod (3) is connected with a sliding block (4), and the inside of the sliding block (4) and the guide rail support (2) is provided with a reciprocating screw rod (5).

6. A process for printing on the surface of a packaging box according to claim 2, characterized in that: The end of the reciprocating screw rod (5) is connected with an output motor (6), and the surface of the reciprocating screw rod (5) is sleeved with an inkjet cartridge (7).

7. A process for printing on the surface of a packaging box according to claim 6, characterized in that: The top of the inkjet cartridge (7) is connected with an ink injection pipe (105), and the inkjet cartridge (7) is provided below with a conveying belt (8).

8. A process for printing on the surface of a packaging box according to claim 2, characterized in that: The end of the ink injection pipe (106) away from the A three-way valve (103) is connected with an ink cartridge assembly (9), the ink cartridge assembly (9) comprises an ink cartridge (901), a clamping assembly base plate (902), an ink storage bag (903), a clamping assembly middle plate (904), a B three-way valve (905) and a liquid level sensor (906), the inside of the ink cartridge (901) is inserted with the clamping assembly base plate (902) on both sides in an inclined manner, the side of the clamping assembly base plate (902) is connected with the ink storage bag (903), the ink storage bag (903) is connected with the clamping assembly middle plate (904) between them, one end of the clamping assembly base plate (902) is connected with the B three-way valve (905) on the side, and the inside of the ink storage bag (903) is provided with the liquid level sensor (906).

9. A process for printing on the surface of a packaging box according to claim 8, characterized in that: The clamping assembly base plate (902) is connected with the ink injection pipe (106) through the B three-way valve (905), and the inside of the clamping assembly base plate (902) is communicated with the inside of the ink storage bag (903).

10. A process for printing on the surface of a packaging box according to claim 8, characterized in that: The ink cartridge assembly (9) further comprises an ink injection port (907), and the end of the clamping assembly base plate (902) away from the B three-way valve (905) is provided with the ink injection port (907), and the ink injection port (907) is exposed outside the ink cartridge (901).

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