High-speed printing and packaging forming machine special for frozen meat carton

Abstract

The invention relates to the field of food packaging, and particularly discloses a high-speed printing and packaging forming machine special for a frozen meat carton, which is used for printing the surface of a food packaging carton. Comprising a conveying belt and a UV ink printing module which is arranged on the conveying belt and used for printing the surface of a carton; a cooling module; the preheating module is used for heating the cartons before the cartons enter the UV ink printing module; the bin body sequentially accommodates the preheating module, the UV ink printing module and the cooling module in the first direction; the bin body comprises partition plates and a cavity which is formed by the partition plates in the first direction and used for containing the preheating module, the UV ink printing module and the cooling module. The cavity for accommodating the cooling module is communicated with the cavity for accommodating the preheating module through a return pipe; the high-speed printing, packaging and forming machine special for the frozen meat carton has the beneficial effects that waste heat generated during recycling and printing is used for preheating the carton before printing so as to improve the printing adhesive force, and therefore printing ink can achieve high waterproofness.

Description

Technical Field

[0001] This application relates to the field of food packaging, and in particular to a high-speed printing and packaging forming machine specifically for frozen meat cartons. Background Technology

[0002] In food processing and packaging, food information is printed on the surface of cardboard boxes using ink so that consumers can understand the food. However, when loading frozen meat, it is generally necessary to pre-freeze it, but the frozen food is prone to thawing during long-distance transportation. After thawing, the cardboard box becomes damp, causing the ink pattern printed on the packaging box to bleed, resulting in unclear patterns and customers not being able to understand the product information. Furthermore, after bleeding, harmful substances in the ink can easily corrode into the food. Therefore, it is necessary to design a method that can improve the adhesion of ink-printed patterns on frozen meat cartons, so that they will not be damaged by moisture during transportation. Summary of the Invention

[0003] To improve the poor water resistance of inks on existing cardboard boxes used for packaging frozen meat, this application provides a high-speed printing and packaging forming machine specifically for frozen meat cardboard boxes.

[0004] This application provides a high-speed printing and packaging forming machine specifically for frozen meat cartons, used for surface printing on food packaging cartons; comprising: Conveyor belt for conveying food packaging cartons along a first direction; The UV ink printing module is installed on the conveyor belt for printing on the surface of the carton; A cooling module is located on one side of the UV ink printing module to cure the UV ink; The preheating module heats the carton before it enters the UV ink printing module; The chamber, along the first direction, sequentially houses the preheating module, the UV ink printing module, and the cooling module; The chamber includes a partition and a cavity formed by the partition along a first direction to accommodate a preheating module, a UV ink printing module, and a cooling module; the cavity for accommodating the cooling module and the cavity for accommodating the preheating module are connected by a return pipe. By heating the carton before printing using a preheating module, the adhesion of the printing ink can be improved, thereby enhancing the water resistance of the ink. By setting up a cooling module, the cooling temperature can be actively controlled, and the residual heat generated during cooling can be recovered to the preheating module through a reflux pipe, ensuring that some moisture in the carton can be removed before printing.

[0005] Optional, the cooling module includes: The first temperature sensor is used to monitor the curing temperature; The fan is installed inside the cavity; The Peltier element is located at the air outlet of the fan; The fan is used to transfer the hot airflow inside the cavity containing the cooling module to the cavity where the preheating module is located.

[0006] Optional, the preheating module includes: The heating chamber forms a gas cavity to contain the heating airflow; The jet pipe is installed on the surface of the heating chamber and communicates with the air cavity; A deflector plate forms a guiding surface for guiding the heated airflow; A blockage block is installed on the guide plate and corresponds to the jet pipe; The second temperature sensor is used to monitor the surface temperature of the carton. The heating box is movably disposed within the cavity to be close to or away from the cardboard box; the guide plate is movably disposed within the air cavity to move the blockage block away from / into the jet pipe; the heating box is provided with a connecting pipe that connects the air cavity and an external heating fan; the connecting pipe is located between the top wall of the air cavity and the guide surface to form the first air outlet.

[0007] Optionally, a flow guide column may be provided for the blockage block; The guide column penetrates the jet pipe to contact the surface of the cardboard box; The sidewall of the guide column forms an inclined section.

[0008] Optionally, the guide plate forms a high-pressure chamber that communicates with the connecting pipe section; A groove corresponding to the blockage block is formed at the bottom of the high-pressure chamber; An air blowing hole is formed through the bottom of the groove; The groove wall slides down to the setting of the blocking plate; The blockage plate is equipped with a pin that penetrates the guide column and protrudes from the end face of the guide column; The blocking plate is connected to the bottom of the groove via a first elastic element.

[0009] Optionally, the preheating module also includes a drive assembly for driving the heating chamber closer to or away from the carton; the drive assembly includes: Guide rods are installed on the side wall of the compartment to guide the heating box closer to or away from the cardboard box; The slider is slidably mounted on the guide rod and fixedly connected to the heating box; An electromagnet is mounted at one end of the guide rod; A magnetic attraction element is mounted on the slider and positioned opposite the electromagnet. A second elastic element is provided between the electromagnet and the magnetic attractor.

[0010] Optionally, the electromagnet is electrically connected to the second temperature sensor.

[0011] Optionally, a heating groove for the return pipe is provided on the inner wall of the cavity where the preheating module is located; The walls of the heating tank are equipped with louvers.

[0012] In summary, this application includes at least one of the following beneficial technical effects: 1. The UV ink printing module emits ultraviolet light through a UV lamp to excite the photoinitiator in the ink to undergo a polymerization reaction, causing the ink to solidify instantly from a liquid state to a solid state after printing. The cooling module is used to controllably cool the cardboard box printed with UV ink, making the curing more stable. The preheating module can preheat the cardboard box before printing, allowing the ink to better improve the adhesion of the UV ink. Therefore, this application preheats the cardboard box before printing frozen meat packaging to remove as much moisture as possible; then UV printing is performed; and after printing, controlled-temperature cooling is used to further improve adhesion. 2. This application uses hot air to heat the cardboard box, which can clean the dust on the surface of the cardboard box while heating, thereby improving the yield rate of the cardboard box. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the compartment body according to an embodiment of this application; Figure 3 This is a schematic diagram of the overall structure of the heating box and the guide plate according to an embodiment of this application; Figure 4 yes Figure 3 Enlarged view of a portion of the image; Figure 5 This is a schematic diagram of the overall structure of the guide vane according to an embodiment of this application; Figure 6 This is a schematic diagram of the overall structure of the driver component according to an embodiment of this application.

[0014] Reference numerals: 100, Printing and Packaging Forming Machine; 1, Conveyor Belt; 2, UV Ink Printing Module; 3, Cooling Module; 4, Preheating Module; 5, Chamber; 6, Support; L, First Direction; 7, Partition; 8, First Chamber; 9, Second Chamber; 10, Third Chamber; 11, Return Pipe; 12, Heating Box; 13, Jet Pipe; 14, Guide Plate; 15, Blocking Block; 16, Air Chamber; 17, Connecting Pipe; 18, First Air Outlet; 19, Air Hole; 20, Guide Surface; 21, Airflow Channel; 22, Guide Column; 23, Inclined Part; 24, High Pressure Chamber; 25, Second Air Outlet; 26, Groove; 27, Air Blowing Hole; 28, First Elastic Element; 29, Ejector Pin; 30, Blocking Plate; 31, Guide Rod; 32, Slider; 33, Electromagnet; 34, Magnetic Attachment. Detailed Implementation

[0015] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0016] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0017] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0018] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0019] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] This application discloses a high-speed printing and packaging forming machine 100 specifically for frozen meat cartons, used for surface printing on frozen meat food packaging cartons; it includes: a conveyor belt 1, a UV ink printing module 2, a cooling module 3, a preheating module 4, and a chamber 5; wherein, the conveyor belt 1 is supported by a bracket 6, and a motor for driving the conveyor belt 1 to convey food packaging cartons along a first direction L is provided on the bracket 6; a chamber 5 is fixedly provided on the bracket 6, and the chamber 5 is composed of a chamber wall and a cavity defined by the chamber wall; the chamber wall is preferably fixed to the bracket 6 with screws so that the conveyor belt 1 passes through the cavity along the first direction L; two partitions 7 are provided on the inner wall of the cavity along the first direction L, and the partitions 7 form a first cavity 8, a second cavity 9, and a third cavity 10 along the first direction L; the preheating module 4, the UV ink printing module 2, and the cooling module 3 are sequentially arranged in the first cavity 8, the second cavity 9, and the third cavity 10 along the first direction L. The device comprises body 9 and a third cavity 10. Specifically, the UV ink printing module 2 is a commercially available UV ink printing device. This UV ink printing device is existing technology, which uses a UV lamp to emit ultraviolet light to excite the photoinitiator in the ink to undergo a polymerization reaction, causing the ink to instantly solidify from a liquid state to a solid state after printing. The cooling module 3 is used to controllably cool the cardboard box printed with UV ink, making the curing more stable. The preheating module 4 can preheat the cardboard box before printing, so that the ink can better improve the adhesion of the UV ink. Therefore, this application preheats the cardboard box before printing frozen meat packaging boxes to remove as much moisture as possible; then UV printing is performed; after printing, the adhesion is further improved by cooling at a controllable temperature.

[0021] Specifically, the third chamber is equipped with a cooling module 3 capable of controlling the cooling temperature. The cooling module 3 includes: a first temperature sensor, a fan, and a Peltier element. The first temperature sensor monitors the temperature of the airflow blown from the fan outlet. The airflow blown by the fan directly hits the surface of the cardboard box that has already been ink-printed. The Peltier element is located at the fan outlet; after the Peltier element is energized, it heats or cools the airflow according to the direction of the current. Thus, the airflow at the fan outlet forms hot or cold air after passing through the Peltier element, thereby controlling the cooling temperature after UV printing. Preferably, the first temperature sensor detects the temperature information within the third chamber. The signal is converted into a first electrical signal and transmitted to the information processor. The information processor receives the first electrical signal and, based on the built-in control program unit, selects a working mode or converts the first electrical signal into a corresponding input command based on the current working mode. In this embodiment, the output command includes: preset locking temperature of the first electrical signal, heating of the Peltier element, cooling of the Peltier element, and locking of the first electrical signal. Specifically, the preset locking temperature of the first electrical signal is 50℃-60℃, preferably 55℃. Through the above scheme, the stability of ink printing and the water resistance are improved. In a more specific implementation, the third chamber 10 is connected to the first chamber 8 via a return pipe 11; the heat flow from the fan in the third chamber is transferred to the first chamber 8; specifically, the inner wall of the third chamber is provided with a heating groove connected to the return pipe 11, and the groove wall of the heating groove is provided with louvers; in this way, the hot airflow can be evenly distributed to the first chamber, providing a constant temperature environment for preheating; it can be understood that after the carton enters the first chamber, the heat energy in the first chamber can first evaporate some of the moisture in the carton.

[0022] Specifically, a preheating module 4 is installed in the first chamber to heat the printed surface of the carton. The preheating module 4 includes: a heating box 12, jet pipes 13, a guide plate 14, a blocking block 15, and a second temperature sensor. The heating box 12 forms an air chamber 16, and a connecting pipe 17 connected to an external heating fan is installed on the heating box 12. The portion of the connecting pipe 17 inserted into the air chamber 16 forms a first air outlet 18. The heating fan can blow hot air at a temperature of over 50°C, which can heat the surface of the carton to between 40°C and 60°C. Specifically, multiple jet pipes 13 are arrayed near the surface of the carton in the heating box 12. The jet pipes 13 form air holes 19 for blowing the heated airflow onto the surface of the cardboard. The heated airflow can be guided by the air holes 19 to evenly contact the surface of the carton. Furthermore, the airflow can also blow away dust from the surface of the carton, improving the yield rate. More specifically, the guide plate 14 is movably disposed within the air chamber 16 and forms an irregularly shaped guide surface 20 corresponding to the first air outlet 18; wherein, the airflow flowing out from the first air outlet 18 forms a narrow and irregular airflow channel 21 on the top wall of the air chamber 16 and the guide surface 20, so the airflow velocity decreases when passing through the airflow channel 21; a blocking block 15 is disposed on the surface of the guide plate 14 near the air hole 19, which can block the air hole 19; the blocking block 15 is provided with a portion extending through the air hole 19 along the axial direction of the jet pipe 13. The guide column 22 has an end that is away from the blockage block 15 that can contact the cardboard box. When the heating box 12 is close to the cardboard box, the guide column 22 contacts the cardboard box, thereby driving the guide plate 14 away from the cardboard box, thus opening the air hole 19 of the blockage block 15. The heated airflow enters the air hole 19 and flows along the surface of the guide column 22 to the surface of the cardboard box. In addition, the side wall of the guide column 22 forms an inclined part 23, which can give the airflow a certain slope, which is conducive to the airflow flowing on the surface of the cardboard box, thereby improving the heating efficiency. Specifically, the guide plate 14 forms a high-pressure chamber 24 that is partially connected to the connecting pipe 17. The connecting pipe 17 is inserted into the high-pressure chamber 24, and a second air outlet 25 is formed within the high-pressure chamber 24. The heated airflow in the connecting pipe 17 is continuously introduced into the high-pressure chamber 24, forming an air pressure higher than that in the air chamber 16. The bottom of the high-pressure chamber 24, corresponding to the blocking block 15, is recessed to form a groove 26. A blowing hole 2719 is formed through the bottom of the groove 26, which can blow the airflow from the high-pressure chamber 24 into the blowing hole 19. The groove wall of the groove 26 slides down to a blocking plate 30. The blocking plate 30 has a pin 29 that penetrates the guide column 22 and protrudes from the end face of the guide column 22. The blocking plate 30 and the groove 26 form a high-pressure chamber 24. The bottom of the 6 is connected by a first elastic element 28, which is a spring, and always provides a pulling force to the blocking plate 30 blocking the groove 26. After the heating box 12 approaches the cardboard box, the ejector pin 29 first abuts against the cardboard box and drives the blocking plate 30 to move. Then, the heated airflow in the high-pressure chamber 24 is blown towards the air hole 19 through the air blowing hole 2719. Since the air pressure in the high-pressure chamber 24 is greater than the pressure in the air chamber 16, the flow rate of the heated airflow ejected from the air blowing hole 2719 is greater than the air flow rate of the guide surface 20. It can be understood that the air pressure in the air hole 19 is lower than the air pressure in the air chamber 16, so the air hole 19 can draw more hot air from the air chamber 16, which improves the uniformity of the hot airflow ejected from each air hole 19.

[0023] Specifically, the preheating module 4 also includes a drive assembly disposed on the outer wall of the chamber 5, which, when activated, moves the heating box 12 closer to or further away from the conveyor belt. This drive assembly includes: a guide rod 31, a slider 32, an electromagnet 33, and a magnetic attractor 34. The guide rod 31 is disposed opposite to the inner wall of the first chamber, and a slider 32 is slidably mounted on the guide rod 31. The slider 32 is fixedly connected to the wall of the heating box 12 so that the sliding of the slider 32 can move the heating box 12. An electromagnet 33 is disposed at the end of the guide rod 31 furthest from the conveyor belt 1, and an electromagnet 34 is disposed on the slider 32. The electromagnet 33 is accompanied by a magnetic attractor 34, which can be any metal or permanent magnet with magnetic permeability, specifically iron, cobalt, or a magnetic metal alloy. When the electromagnet 33 is energized, it can generate a magnetic field that attracts the magnetic attractor 34. Since the magnetic attraction of the electromagnet 33 is proportional to the magnitude of the current, the setting of the electromagnet 33 can also control the distance between the heating box 12 and the cardboard box. A second elastic element is set between the magnetic attractor 34 and the electromagnet 33. The second elastic element is a spring that always provides an elastic force that keeps the magnetic attractor 34 and the electromagnet 33 away from each other. Specifically, a second temperature sensor for monitoring the surface temperature of the cardboard box is installed in the first chamber. The second temperature sensor converts the detected surface temperature information of the cardboard box into a second electrical signal and transmits this signal to the information processor. The information processor receives the second electrical signal and, based on its built-in control program unit, selects a working mode or converts the second electrical signal into a corresponding input command based on the current working mode. In this embodiment, the output commands include: preset locking the temperature of the second electrical signal, energizing the electromagnet 33, de-energizing the electromagnet 33, and controlling the output current of the potentiometer. Specifically, the preset locking temperature of the second electrical signal is 40℃-50℃, preferably, the preset locking temperature of the first electrical signal is 45℃. Specifically, when the cardboard box just enters the first chamber, the electromagnet 33 is energized to drive the heating box 12 closer to the cardboard box when the second temperature sensor measures the surface temperature of the cardboard box. When the second temperature sensor measures a temperature greater than 50℃, the electromagnet 33 is energized and moves away from the cardboard box.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A high-speed printing and packaging forming machine specifically for frozen meat cartons, used for surface printing on food packaging cartons; characterized in that, include: Conveyor belt for conveying food packaging cartons along a first direction; A UV ink printing module is installed on the conveyor belt for printing on the surface of the carton; A cooling module is disposed on one side of the UV ink printing module to cure the UV ink; The preheating module heats the carton before it enters the UV ink printing module; The chamber, along the first direction, sequentially houses the preheating module, the UV ink printing module, and the cooling module; The chamber includes a partition and a cavity formed by the partition along the first direction to accommodate the preheating module, the UV ink printing module, and the cooling module; the cavity for accommodating the cooling module and the cavity for accommodating the preheating module are connected by a return pipe.

2. The high-speed printing and packaging forming machine for frozen meat cartons according to claim 1, characterized in that: The cooling module includes: The first temperature sensor is used to monitor the curing temperature; A fan is installed inside the cavity; A Peltier element is disposed at the air outlet of the fan; The fan is used to transfer the hot airflow inside the cavity containing the cooling module to the cavity where the preheating module is located.

3. The high-speed printing and packaging forming machine for frozen meat cartons according to claim 1, characterized in that: The preheating module includes: The heating chamber forms a gas cavity to contain the heating airflow; An air jet pipe is disposed on the surface of the heating box and communicates with the air chamber; A deflector plate forms a guiding surface for guiding the heated airflow; A blockage block is disposed on the guide plate and corresponds to the jet pipe; The second temperature sensor is used to monitor the surface temperature of the carton. The heating box is movably disposed within the cavity to be close to or away from the cardboard box; the guide plate is movably disposed within the air cavity to move the blockage block away from / into the jet pipe; the heating box is provided with a connecting pipe that connects the air cavity and an external heating fan; the connecting pipe is located between the top wall of the air cavity and the guide surface to form a first air outlet.

4. The high-speed printing and packaging forming machine for frozen meat cartons according to claim 3, characterized in that: The blockage block is equipped with a flow guide column; The guide column penetrates the jet pipe to contact the surface of the carton; The sidewall of the guide column is formed with an inclined section.

5. A high-speed printing and packaging forming machine for frozen meat cartons according to claim 3, characterized in that: The guide plate forms a high-pressure chamber that communicates with the connecting pipe portion; A groove corresponding to the blocking block is formed at the bottom of the high-pressure chamber; An air blowing hole is formed through the bottom of the groove; The groove wall slides to the location of the blocking plate; The blocking plate is provided with a pin that penetrates the guide column and protrudes from the end face of the guide column; The blocking plate is connected to the bottom of the groove via a first elastic element.

6. The high-speed printing and packaging forming machine for frozen meat cartons according to claim 3, characterized in that: The preheating module further includes a drive assembly for driving the heating box closer to or away from the cardboard box; the drive assembly includes: A guide rod is provided on the side wall of the compartment to guide the heating box toward or away from the carton; The slider is slidably mounted on the guide rod and fixedly connected to the heating box; An electromagnet is disposed at one end of the guide rod; A magnetic attractor is disposed on the slider and positioned opposite to the electromagnet; A second elastic element is provided between the electromagnet and the magnetic attractor.

7. A high-speed printing and packaging forming machine for frozen meat cartons according to claim 6, characterized in that: The electromagnet is electrically connected to the second temperature sensor.

8. The high-speed printing and packaging forming machine for frozen meat cartons according to claim 1, characterized in that: The inner wall of the cavity where the preheating module is located is provided with a heating groove for the return pipe; The heating tank is equipped with louvers on its walls.

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