Aluminum foil printing apparatus and tightness monitoring method

Abstract

This application relates to the field of metal embossing technology, and provides an aluminum foil printing apparatus, including an unwinding mechanism, a winding mechanism, several transmission mechanisms, several concave printing mechanisms, several tension adjustment mechanisms, and several blowing mechanisms for unwinding aluminum foil rolls; a traction mechanism between the unwinding mechanism and the winding mechanism, the traction mechanism being close to the winding mechanism; several concave printing mechanisms located between the unwinding mechanism and the winding mechanism, each concave printing mechanism being equipped with the blowing mechanism and the tension adjustment mechanism; several transmission mechanisms connected to the concave printing mechanisms, the aluminum foil roll being transmitted from the unwinding mechanism through the transmission mechanisms sequentially from the tension adjustment mechanism and the blowing mechanism to the several concave printing mechanisms. This application has the effect of stabilizing the tension during the printing process. Furthermore, a method for monitoring the tension of an aluminum foil printing apparatus is also provided.

Description

Technical Field

[0001] This application relates to the field of metal embossing technology, and in particular to an aluminum foil printing device and a method for monitoring the tightness of the foil. Background Technology

[0002] Aluminum foil printing machines typically use gravure printing, which is suitable for printing large batches of roll material. A thick, elastic rubber blanket covers the surface of the impression cylinder, allowing the ink in the recesses of the printing plate to be smoothly transferred to the aluminum foil surface. The process flow of an aluminum foil printing machine is unwinding, gravure printing, cooling and drying, and rewinding. However, aluminum foil printing machines usually use multiple printing presses for sequential printing, employing an overlay method. First, a lighter color is printed on the preceding press, and then a darker color is printed on the following press, thus gradually printing the ink onto the aluminum foil roll to complete the initial printing.

[0003] Existing aluminum foil printing machines typically use air cooling for drying and cooling after overprinting. This high-speed airflow can cause the aluminum foil roll to be subjected to air pressure, making it difficult to maintain a stable tightness and affecting the printing pattern and the normal operation of subsequent processes. Summary of the Invention

[0004] To address the aforementioned issues, this application provides an aluminum foil printing apparatus and a method for monitoring the tightness of the foil.

[0005] The aluminum foil printing equipment and tightness monitoring method provided in this application adopt the following technical solution:

[0006] An aluminum foil printing device includes an unwinding mechanism, a winding mechanism, several transmission mechanisms, several concave printing mechanisms, several tension adjustment mechanisms, and several blowing mechanisms for unwinding aluminum foil rolls; a traction mechanism between the unwinding mechanism and the winding mechanism, the traction mechanism being close to the winding mechanism; several concave printing mechanisms located between the unwinding mechanism and the winding mechanism, each concave printing mechanism being equipped with the blowing mechanism and the tension adjustment mechanism; several transmission mechanisms connected to the concave printing mechanisms, the aluminum foil roll being transmitted from the unwinding mechanism through the transmission mechanisms sequentially from the tension adjustment mechanism and the blowing mechanism to the several concave printing mechanisms, and then connected to the winding mechanism after being connected to the traction mechanism, forming the unwinding and winding path of the aluminum foil roll; the blowing mechanism is electrically connected to the tension adjustment mechanism, so that when the blowing mechanism blows the aluminum foil roll, the tension adjustment mechanism adjusts the tension of the aluminum foil roll in real time according to the blowing force of the blowing mechanism.

[0007] By adopting the above technical solution, the aluminum foil roll is unwound from the unwinding mechanism by the traction effect of the traction mechanism, and enters the concave printing mechanism for concave printing through the winding and unwinding path and the transmission mechanism. Utilizing the electrical connection between the blowing mechanism and the tension adjustment mechanism, when the blowing mechanism blows the aluminum foil roll, the tension adjustment mechanism can adjust the tension synchronously according to the air pressure generated by the blowing mechanism on the aluminum foil roll. The tension adjustment mechanism can also adjust the blowing power and force of the blowing mechanism according to the tension, so that the blown air pressure is more stable and appropriate.

[0008] Optionally, the tension adjustment mechanism includes a tension adjustment part, a transmission part, and a sensing part; the tension adjustment part is connected to the concave printing mechanism; the sensing part is installed on the tension adjustment part and connected to the tension adjustment part; the transmission part is movably connected to the adjustment end of the tension adjustment part and contacts the aluminum foil roll.

[0009] By adopting the above technical solution, the sensing value of the sensing unit is set, and the adjusting end of the tension adjustment unit drives the transmission unit to move towards the aluminum foil roll. During the movement, the transmission unit contacts the aluminum foil roll and applies pressure to the aluminum foil roll. As the aluminum foil roll becomes tighter or looser under pressure, the same pressure is applied to the sensing unit until the sensing unit senses that the pressure applied by the aluminum foil roll to the sensing unit reaches the sensing value. At this point, the tension adjustment unit stops adjusting and maintains this position until the sensing unit senses a change in the sensing value during the winding process, at which point it adjusts again, so as to achieve the effect of adjusting the tension in real time according to the winding situation.

[0010] Optionally, the adjusting end of the tension adjustment part is provided with a telescopic groove, and a telescopic part is slidably connected in the telescopic groove; the sensing part is located in the telescopic groove; an elastic part is provided in the telescopic groove, one end of the elastic part is connected to the telescopic part, and the other end is connected to the sensing part.

[0011] By adopting the above technical solution, the adjusting end of the tension adjustment part drives the telescopic part and the transmission part to move. When the transmission part comes into contact with the aluminum foil roll, the transmission part is pressed and the pressure is transmitted to the elastic part through the telescopic part. That is, the telescopic part slides along the telescopic groove and compresses the elastic part. The elastic force generated after the elastic part is compressed is transmitted to the sensing part. The sensing part can monitor the pressure to control the tension adjustment part to adjust the pressure of the transmission part on the aluminum foil roll. At the same time, the buffering effect of the elastic part is used to better protect the stability of the aluminum foil roll during the winding process and reduce the possibility of damage.

[0012] Optionally, the purging mechanism includes a purging box, a purging section, an air pump, and an air storage section; the purging box is connected to the concave printing mechanism; the purging section is connected to the purging box and aligned with the concave printing mechanism; the air storage section contains inert gas, the air storage section is connected to the purging box, and the air pump is provided at the connection point.

[0013] By adopting the above technical solution, an air pump is used to deliver gas to the purge box, which then distributes the gas to each purge section. The purge section compresses and disperses the gas to ensure balanced force distribution.

[0014] Optionally, the inert gas in the gas storage section is nitrogen.

[0015] By adopting the above technical solution, nitrogen purging can increase the quality of aluminum foil rolls and the service life of equipment. At the same time, high-pressure airflow can be used to clean the surface of aluminum foil rolls, achieving both cleaning and protection.

[0016] Optionally, the purging section is provided with a diversion section, the diversion section having a diversion port, the diversion port separating and conveying the inert gas.

[0017] By adopting the above technical solution, the flow divider can adjust the blowing path, so that the blowing direction of the airflow can be adjusted according to the installation position. Several flow dividers can divide the airflow in multiple directions, making the airflow more dispersed and increasing the contact area with the aluminum foil roll.

[0018] Optionally, the tension adjustment mechanism is mounted on the purging mechanism, and the purging mechanism provides the driving force for the tension adjustment mechanism.

[0019] By adopting the above technical solution, the tension adjustment mechanism can adjust the aluminum foil roll by using the wind power of the blowing mechanism. The integrated operation mode can reduce the driving source, reduce power loss, and increase the accuracy of adjustment.

[0020] Optionally, the telescopic groove is connected to the purge box, and the telescopic part slides along the telescopic groove under the blowing of the airflow and squeezes the elastic part; the elastic part squeezes and generates elastic force which is transmitted to the sensing part.

[0021] By adopting the above technical solution, the telescopic part is squeezed by air pressure, causing the telescopic part to move along the telescopic groove towards the aluminum foil roll. During the movement, the transmission part is driven to abut against the aluminum foil roll. At the same time, the telescopic part is squeezed by the air pressure, causing the elastic part to squeeze the sensing part. After the sensing part obtains the sensing value, it controls the air force blown by the air pump in the blowing mechanism according to the sensing value until the sensing value stabilizes.

[0022] Optionally, the tension adjustment mechanism further includes a locking part; the locking part is connected to the telescopic groove and is connected to the telescopic part.

[0023] By adopting the above technical solution, when the sensing part detects the sensing value, the locking part will lock the telescopic part, so that the tightness adjustment can remain stable and will not shift arbitrarily after the adjustment is completed.

[0024] A method for monitoring the tightness of aluminum foil printing, comprising aluminum foil printing equipment and a controller, includes the following steps:

[0025] Input the sensed value to the controller and set the error range;

[0026] Roll-up test;

[0027] The purging mechanism purifies, while the tension adjustment mechanism adjusts the tension simultaneously.

[0028] The tension adjustment mechanism adjusts the tension according to the purging force, and saves the record point after the sensing value is reached.

[0029] By adopting the above technical solution and according to the above tightness monitoring method, the purging mechanism and the tightness adjustment mechanism can be synchronously adjusted to a stable and balanced tightness and purging force.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. The aluminum foil roll is unwound from the unwinding mechanism by the traction mechanism and enters the concave printing mechanism for concave printing through the winding and unwinding path and the transmission mechanism. Utilizing the electrical connection between the blowing mechanism and the tension adjustment mechanism, the tension adjustment mechanism can adjust the tension synchronously according to the air pressure generated by the blowing mechanism on the aluminum foil roll. The tension adjustment mechanism can also adjust the blowing power and force of the blowing mechanism according to the tension, so that the blown air pressure is more stable and appropriate.

[0032] 2. Set the sensing value of the sensing unit. The adjusting end of the tension adjustment unit drives the transmission unit to move towards the aluminum foil roll. During the movement, the transmission unit contacts the aluminum foil roll and applies pressure to the aluminum foil roll. As the aluminum foil roll tightens or loosens under pressure, the same pressure is applied to the sensing unit until the sensing unit senses that the pressure applied by the aluminum foil roll to the sensing unit reaches the sensing value. The tension adjustment unit stops adjusting and maintains this position until the sensing unit senses a change in the sensing value during the winding process. Then, it adjusts again to achieve the effect of adjusting the tension in real time according to the winding situation.

[0033] 3. The adjusting end of the tension adjustment section drives the telescopic section and the transmission section to move. When the transmission section contacts the aluminum foil roll, the transmission section is pressed and transmits the pressure to the elastic section through the telescopic section. That is, the telescopic section slides along the telescopic groove and compresses the elastic section. The elastic force generated after the elastic section is compressed is transmitted to the sensing section. The sensing section can monitor the pressure to control the tension adjustment section to adjust the pressure of the transmission section on the aluminum foil roll. At the same time, the buffering effect of the elastic section is used to better protect the stability of the aluminum foil roll during the winding process and reduce the possibility of damage.

[0034] 4. Using air pressure to squeeze the telescopic part, the telescopic part moves along the telescopic groove towards the aluminum foil roll. During the movement, the transmission part is driven to press against the aluminum foil roll. At the same time, the telescopic part is squeezed by the air pressure, which in turn squeezes the sensing part. After the sensing part obtains the sensing value, it controls the air force blown by the air pump in the blowing mechanism according to the sensing value until the sensing value stabilizes. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the planar structure of an aluminum foil printing device according to an embodiment of this application;

[0036] Figure 2 This is a schematic diagram of the first planar structure of the tension adjustment mechanism in some embodiments of this application;

[0037] Figure 3 This is a schematic diagram of a second planar structure of the tension adjustment mechanism in some embodiments of this application;

[0038] Figure 4 This is a schematic side view of the first type of purging mechanism in some embodiments of this application;

[0039] Figure 5 This is a second side view schematic diagram of the purging mechanism in some embodiments of this application;

[0040] Figure 6 This is a schematic diagram of a third planar structure of the tension adjustment mechanism in some embodiments of this application;

[0041] Figure 7 This is a schematic diagram of the flow structure of the tightness monitoring method in some embodiments of this application;

[0042] The labels in the attached diagram are as follows: 1. Unwinding mechanism, 2. Rewinding mechanism, 3. Traction mechanism, 4. Transmission mechanism, 5. Concave printing mechanism, 6. Tension adjustment mechanism, 61. Tension adjustment section, 611. Telescopic groove, 62. Transmission section, 63. Sensing section, 64. Telescopic section, 65. Elastic section, 66. Locking section, 7. Blowing mechanism, 71. Blowing box, 72. Blowing section, 73. Air pump, 74. Air storage section, 75. Diverting section. Detailed Implementation

[0043] The following specific examples illustrate the implementation methods of this application. Those skilled in the art can easily understand other advantages and effects of this application from the information disclosed herein. This application can also be implemented or applied through other different specific embodiments, and various details in this application can be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0044] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.

[0045] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this application, as well as features of different embodiments or examples.

[0046] Furthermore, the terms "first" and "second" are used only to indicate an objective and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0048] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail below.

[0049] This application discloses an aluminum foil printing device and a method for monitoring the tightness of the foil.

[0050] An aluminum foil printing device, as described above Figure 1The system includes an unwinding mechanism 1 for unwinding aluminum foil rolls, a winding mechanism 2, several transmission mechanisms 4, several concave printing mechanisms 5, several tension adjustment mechanisms 6, and several blowing mechanisms 7. A traction mechanism 3 is provided between the unwinding mechanism 1 and the winding mechanism 2. The traction mechanism 3 is close to the winding mechanism 2. Alternatively, a first traction mechanism 3 and a second traction mechanism 3 can be provided. The first traction mechanism 3 is close to the unwinding mechanism 1 to increase the traction force. The traction mechanism 3 may include components such as a drive motor and traction rollers. The drive motor drives the traction rollers to rotate. The aluminum foil rolls are wound around the unwinding mechanism 1 and one end passes through the unwinding and winding path of the aluminum foil rolls. Then, they pass through the concave printing mechanism 5, the tension adjustment mechanism 6, and the blowing mechanism 7 to the traction mechanism 3, and finally are wound into the winding mechanism 2 to form a complete unwinding and winding path.

[0051] Several transmission mechanisms 4 are installed on the concave printing mechanism 5, and additional connecting frames can also be installed. The transmission mechanism 4 can be a pivotable transmission roller, which is used to transmit and guide the aluminum foil roll.

[0052] In addition, it is equipped with an automatic operation control panel with a built-in controller to provide automated winding control and a visual operation platform, as well as auxiliary equipment such as an oven and a web guiding device.

[0053] The winding mechanism 2 includes a winding roller and a winding fixing bracket, with the winding roller pivotally connected to the winding fixing bracket. The unwinding mechanism 1 includes an unwinding roller and an unwinding fixing bracket, with the unwinding roller pivotally connected to the unwinding fixing bracket, so that the aluminum foil roll can be wound into the winding mechanism 2 and the unwinding mechanism 1, and can be wound or unwound in the pivoting direction.

[0054] Several concave printing mechanisms 5 are located between the unwinding mechanism 1 and the rewinding mechanism 2. The concave printing mechanism 5 includes a concave printing roller, a driving device, a front-to-back conversion device, etc. When the aluminum foil roll is rewound from the concave printing mechanism 5, the concave printing roller is used to perform concave printing on the aluminum foil roll, and the front-to-back conversion device performs printing surface conversion and other work processes.

[0055] Each concave printing mechanism 5 is equipped with a blowing mechanism 7 and a tension adjustment mechanism 6. The tension adjustment mechanism 6 and the concave printing mechanism 5 are located on the winding and unwinding path of the aluminum foil roll. The blowing mechanism 7 is electrically connected to the tension adjustment mechanism 6. The tension adjustment mechanism 6 is used to provide stable tension adjustment when the aluminum foil roll moves along the concave printing mechanism 5. This prevents the aluminum foil roll from being too loose or too tight during concave printing, which could cause the printing position to shift. Excessive tightness can also cause the aluminum foil roll to be easily damaged. The tension adjustment mechanism 6 adjusts the slack of the aluminum foil roll according to the traction speed and traction force of the traction mechanism 3, so that the aluminum foil roll is printed more accurately and stably during the printing process.

[0056] The blowing mechanism 7 uses high-pressure air cooling to quickly cool the heat generated by the aluminum foil roll during printing. However, since the blowing end of the blowing mechanism 7 needs to be aligned with the aluminum foil roll, the aluminum foil roll will be subjected to air pressure during cooling, causing deviations in the tightness of the aluminum foil roll. Therefore, by utilizing the electrical connection between the blowing mechanism 7 and the tightness adjustment mechanism 6, when the blowing mechanism 7 is blowing the aluminum foil roll, the tightness adjustment mechanism 6 can adjust the tightness according to the air pressure generated by the blowing mechanism 7. At the same time, during the winding process of the aluminum foil roll, the tightness adjustment mechanism 6 can also adjust the blowing power of the blowing mechanism 7 according to the tightness, so that the blowing air pressure is more stable and appropriate. A controller can be set up in the electrical connection for control.

[0057] Furthermore, the tension adjustment mechanism 6 includes a tension adjustment part 61, a transmission part 62, and a sensing part 63; the tension adjustment part 61 is connected to the concave printing mechanism 5, and the tension adjustment part 61 can adopt any telescopic drive element such as a telescopic cylinder or a pneumatic cylinder, and the adjustment end of the tension adjustment part 61 is the telescopic end.

[0058] The sensing unit 63 is installed on and connected to the tension adjustment unit 61. The sensing unit 63 can be a pressure sensor. The pressure sensor can monitor the pressure of the aluminum foil roll on the pressure sensor when it is being wound up, so that the pressure sensor can adjust the extension length of the tension adjustment unit 61 according to the pressure.

[0059] The transmission part 62 is movably connected to the adjustment end of the tension adjustment part 61 and is in contact with the aluminum foil roll. The transmission part 62 can be a transmission roller. The transmission roller and the adjustment end of the tension adjustment part 61 can be pivotally connected. The transmission roller can rotate along the adjustment end of the tension adjustment part 61. When the adjustment end of the tension adjustment part 61 drives the transmission roller to move towards the aluminum foil roll, the transmission roller applies pressure to the aluminum foil roll while the aluminum foil roll can roll and be conveyed along the surface of the transmission roller.

[0060] Specifically, the sensing value of the sensing unit 63 is set, and the adjusting end of the tension adjusting unit 61 drives the transmission unit 62 to move towards the aluminum foil roll. During the movement, the transmission unit 62 contacts the aluminum foil roll and applies pressure to it. As the aluminum foil roll tightens or loosens under pressure, the same pressure is applied to the sensing unit 63 until the sensing unit 63 senses that the pressure applied by the aluminum foil roll to the sensing unit 63 reaches the sensing value. At this point, the tension adjusting unit 61 stops adjusting and maintains this position until the sensing unit 63 senses a change in the sensing value during the winding process, at which point it adjusts again.

[0061] Furthermore, the adjusting end of the tension adjustment part 61 is provided with a telescopic groove 611, and a telescopic part 64 is slidably connected in the telescopic groove 611. The telescopic part 64 can be a telescopic rod or a telescopic frame. The telescopic part 64 can slide along the telescopic groove 611. A first limiting protrusion is provided at the opening of the telescopic groove 611, and a second limiting protrusion is provided at the end of the telescopic part 64 away from the opening of the telescopic groove 611. When the telescopic part 64 is about to leave the telescopic groove 611, the first limiting protrusion and the second limiting protrusion engage, preventing the telescopic part 64 from leaving the telescopic groove 611.

[0062] The sensing part 63 is located inside the telescopic groove 611, specifically at the bottom of the groove. An elastic part 65 is provided inside the telescopic groove 611. One end of the elastic part 65 is connected to the telescopic part 64, and the other end is connected to the sensing part 63. The elastic part 65 can be a compression spring, which applies pressure to the sensing part 63. The main function of the telescopic part 64 and the elastic part 65 is to provide additional cushioning when the aluminum foil roll is wound up, preventing the transmission part 62 from directly pressing the aluminum foil roll and damaging it. The cushioning effect also prevents the aluminum foil roll from breaking when bumps or unevenness occur during winding. Instead, the aluminum foil roll is cushioned by the telescopic part 64 and the elastic part 65, improving the yield.

[0063] Specifically, the adjusting end of the tension adjustment section 61 drives the telescopic section 64 and the transmission section 62 to move. When the transmission section 62 contacts the aluminum foil roll, the transmission section 62 is pressed and the pressure is transmitted to the elastic section 65 through the telescopic section 64. That is, the telescopic section 64 slides along the telescopic groove 611 and compresses the elastic section 65. The elastic force generated after the elastic section 65 is compressed is transmitted to the sensing section 63. The sensing section 63 can monitor the pressure to control the tension adjustment section 61 to adjust the pressure of the transmission section 62 on the aluminum foil roll. At the same time, the buffering effect of the elastic section 65 is used to better protect the stability of the aluminum foil roll during the winding process and reduce the possibility of damage.

[0064] The transmission unit 62 may also employ two sets of transmission rollers with a gap between them. The aluminum foil roll is wound up from the gap. By using two sets of transmission rollers, the tension can be adjusted by the pull of any transmission roller regardless of which direction the tension adjustment unit 61 is adjusted.

[0065] In some embodiments, the purging mechanism 7 includes a purging box 71, a purging section 72, an air pump 73, and an air storage section 74; the purging box 71 is connected to the concave printing mechanism 5, and the size of the purging box 71 is close to the printing area size of the concave printing mechanism 5, so that the purging box 71 can stably cover the concave printing mechanism 5 when blowing out high-pressure airflow, specifically a rectangular box structure made of metal.

[0066] The purging section 72 is connected to the purging box 71 and aligned with the concave printing mechanism 5. The purging section 72 may use a purging nozzle, which is used to further compress the fluid and accelerate the purging speed and efficiency.

[0067] The gas storage section 74 contains inert gas and is connected to the purge box 71. An air pump 73 is installed at the connection point. The gas storage section 74 can be a gas storage tank or a gas storage cylinder. The gas storage section 74 and the purge box 71 can be connected by a connecting pipe. The air pump 73 is used to deliver gas to the purge box 71. The purge box 71 distributes the gas to each purge section 72. The purge section 72 compresses and disperses the gas to ensure balanced force distribution.

[0068] High-pressure airflow using inert gas can prevent aluminum foil rolls from being oxidized and corroded. Nitrogen is the best inert gas to use. Nitrogen purging can increase the quality of aluminum foil rolls and the service life of equipment. At the same time, high-pressure airflow can be used to clean the surface of aluminum foil rolls, which can play a role in cleaning and protection.

[0069] Furthermore, the purging section 72 is provided with a diversion section 75, which has a diversion port. The diversion port separates and delivers the inert gas. The diversion section 75 can use several diversion blades. The diversion blades can adjust the purging path, so that the blowing direction of the airflow can be adjusted according to the installation position. Several diversion blades can divert the airflow from multiple directions, making the airflow more dispersed and increasing the contact area with the aluminum foil roll.

[0070] In some embodiments, the tension adjustment mechanism 6 is mounted on the purging mechanism 7. Specifically, the tension adjustment mechanism 6 is driven by the wind power of the purging mechanism 7 to adjust the aluminum foil roll. The integrated operation reduces the driving source, lowers power loss, and increases the accuracy of adjustment.

[0071] Furthermore, when the tension adjustment mechanism 6 includes a tension adjustment part 61, a transmission part 62, a sensing part 63, a telescopic part 64, and an elastic part 65, the tension adjustment part 61 can be a piston cylinder with a telescopic groove 611 inside. The telescopic part 64 can be a piston rod that moves along the telescopic groove 611. The piston cylinder is fixedly installed on the purging mechanism 7, specifically on the purging box 71 and connected to it. The sensing end of the sensing part 63 is located inside the telescopic groove 611. One end of the elastic part 65 is installed around the telescopic part 64, and the other end is connected to the sensing end. At the same time, the piston rod extends through the sensing end of the sensing part 63 toward the aluminum foil roll. The sensing end can be an annular sensing sheet.

[0072] Specifically, when the purging mechanism 7 is running, the purging box 71 contains inert gas. After the inert gas enters the tension adjustment section 61, it provides air pressure to the tension adjustment section 61. The air pressure squeezes the telescopic section 64, causing the telescopic section 64 to move along the telescopic groove 611 toward the aluminum foil roll. During the movement, the transmission section 62 is driven to abut against the aluminum foil roll. At the same time, the telescopic section 64 is affected by the air pressure and squeezes the elastic section 65, causing the elastic section 65 to squeeze the sensing section 63. After the sensing section 63 obtains the sensing value, it controls the air force blown by the air pump 73 in the blowing mechanism according to the sensing value until the sensing value is stable and the blowing direction is the same as the adjustment direction, making the adjustment more convenient and achieving integrated operation of tension adjustment and purging process.

[0073] The sensed value is a range of values, and the range is the error range. That is, if the pressure is within the range of values, then the pressure has reached the range of the sensed value.

[0074] Further reference Figure 6 As shown, the tension adjustment mechanism 6 also includes a locking part 66; the locking part 66 is connected to the telescopic groove 611 and is connected to the telescopic part 64. The locking part 66 can be a locking push rod. The locking push rod is electrically connected to the sensing part 63. When the sensing part 63 senses that the pressure reaches the sensing value, the locking push rod extends and locks the telescopic part 64, thus locking the telescopic part 64.

[0075] The locking part 66 can also be an electromagnetic chuck, and the telescopic part 64 is made of a magnetic material. When the sensing part 63 reaches the sensing value, the electromagnetic chuck is energized, so that it is attracted to the surface of the telescopic part 64 to achieve a fixing effect. When the sensing value deviates, the electromagnetic chuck is de-energized and loses its magnetic attraction, and the telescopic part 64 can continue to extend and retract. The illustration uses an electromagnetic chuck as an example.

[0076] This application also provides a method for monitoring the tightness of aluminum foil printing, comprising the aluminum foil printing equipment and controller described in the above embodiments, including the following steps:

[0077] S100: Input the sensed value to the controller and set the error range;

[0078] The set sensing value can be a range of pressure sensing values. The pressure within the range is within the error range, so the value range is also the error range.

[0079] S200, winding test;

[0080] The test run of the winding was conducted using waste aluminum foil rolls to obtain relatively balanced and stable sensing values, and the input sensing values ​​were then modified to appropriate values.

[0081] S300, the purging mechanism 7 purifies, and the tension adjustment mechanism 6 adjusts the tension synchronously;

[0082] When the blowing mechanism 7 blows synchronously, the high-speed airflow will apply wind pressure to the aluminum foil roll. Therefore, the tension adjustment mechanism 6 needs to be adjusted synchronously to ensure the stability of the force on the aluminum foil roll during the winding process.

[0083] S310, the tension adjustment unit 61 drives the telescopic unit 64 and the transmission unit 62 to move toward the aluminum foil roll and applies pressure to the sensing unit 63. If an elastic unit 65 is provided, the elastic force of the elastic unit 65 is used to apply pressure to the sensing unit 63 until the pressure reaches the sensing value, and then the position is maintained, and the aluminum foil roll is wound up along the surface of the transmission unit 62.

[0084] S320. After reaching the sensing value, an electrical signal is sent to the controller, so that after receiving the electrical signal, the controller issues an instruction to maintain the blowing force of the blowing mechanism 7, so as to ensure that the blowing force of the blowing mechanism 7 is stable.

[0085] S330. After receiving the electrical signal indicating that the sensing value has been reached, the controller saves the recording point. This recording point contains information such as the blowing force of the blowing mechanism 7 and the extension length of the tension adjustment part 61 at the current sensing value. When adjustment is needed next time, the tension adjustment part 61 and the blowing mechanism 7 can be directly adjusted to the recorded data at this recording point to improve the efficiency of the next operation.

[0086] S331. If the sensor reading is incorrect after adjusting to the recording point during the next operation, reset the settings and restart the adjustment of the purging mechanism 7 and the tension adjustment mechanism 6.

[0087] S400, tension adjustment mechanism 6 adjusts the tension according to the purging force;

[0088] When the purging power needs to be increased, the high-speed airflow accelerates, and the air pressure on the aluminum foil roll will also be different. Therefore, the tension adjustment mechanism 6 needs to be adjusted according to the purging force at all times.

[0089] When the tension adjustment mechanism 6 is installed on the purging mechanism 7, the air pressure generated by the airflow of the purging mechanism 7 determines the tension of the tension adjustment mechanism 6.

[0090] When a locking part 66 is provided, when the sensing part 63 detects that the tightness has reached the sensing value, the sensing part 63 sends an electrical signal to the controller. After receiving the sensing value signal from the sensing part 63, the controller sends a locking signal to the locking part 66, and the locking part 66 locks the telescopic part 64.

[0091] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. An aluminum foil printing device, characterized in that, The system includes an unwinding mechanism (1) for unwinding aluminum foil rolls, a winding mechanism (2), several transmission mechanisms (4), several concave printing mechanisms (5), several tension adjustment mechanisms (6), and several blowing mechanisms (7); a traction mechanism (3) is provided between the unwinding mechanism (1) and the winding mechanism (2), and the traction mechanism (3) is close to the winding mechanism (2); several concave printing mechanisms (5) are located between the unwinding mechanism (1) and the winding mechanism (2), and each concave printing mechanism (5) is provided with the blowing mechanism (7) and the tension adjustment mechanism (6); the concave printing mechanism (5) The upper part is connected to several of the aforementioned transmission mechanisms (4). The aluminum foil roll is transmitted from the unwinding mechanism (1) through the transmission mechanism (4) to several of the aforementioned concave printing mechanisms (5) in sequence from the tension adjustment mechanism (6) and the blowing mechanism (7), and then connected to the traction mechanism (3) and the winding mechanism (2) to form the winding and unwinding path of the aluminum foil roll. The blowing mechanism (7) is electrically connected to the tension adjustment mechanism (6), so that when the blowing mechanism (7) blows the aluminum foil roll, the tension adjustment mechanism (6) adjusts the tension of the aluminum foil roll in real time according to the blowing force of the blowing mechanism (7).

2. The aluminum foil printing equipment according to claim 1, characterized in that, The tension adjustment mechanism (6) includes a tension adjustment part (61), a transmission part (62), and a sensing part (63); the tension adjustment part (61) is connected to the concave printing mechanism (5); the sensing part (63) is installed on the tension adjustment part (61) and connected to the tension adjustment part (61); the transmission part (62) is movably connected to the adjustment end of the tension adjustment part (61) and is in contact with the aluminum foil roll.

3. The aluminum foil printing equipment according to claim 2, characterized in that, The tension adjustment part (61) has an adjustment end with a telescopic groove (611), and a telescopic part (64) is slidably connected in the telescopic groove (611); the sensing part (63) is located in the telescopic groove (611); an elastic part (65) is provided in the telescopic groove (611), one end of the elastic part (65) is connected to the telescopic part (64), and the other end is connected to the sensing part (63).

4. The aluminum foil printing equipment according to claim 3, characterized in that, The purging mechanism (7) includes a purging box (71), a purging section (72), an air pump (73), and an air storage section (74); the purging box (71) is connected to the concave printing mechanism (5); the purging section (72) is connected to the purging box (71) and aligned with the concave printing mechanism (5); the air storage section (74) contains inert gas, the air storage section (74) is connected to the purging box (71), and the air pump (73) is provided at the connection point.

5. The aluminum foil printing equipment according to claim 4, characterized in that, The inert gas in the gas storage section (74) is nitrogen.

6. The aluminum foil printing equipment according to claim 4, characterized in that, The purging section (72) is provided with a diversion section (75), and the diversion section (75) has a diversion port, which separates and transports the inert gas.

7. An aluminum foil printing device according to claim 4 or 6, characterized in that, The tension adjustment mechanism (6) is mounted on the purging mechanism (7), and the purging mechanism (7) provides the driving force for the tension adjustment mechanism (6).

8. The aluminum foil printing equipment according to claim 7, characterized in that, The telescopic groove (611) is connected to the purge box (71). The telescopic part (64) is blown by the airflow and slides along the telescopic groove (611), and squeezes the elastic part (65). The elastic part (65) squeezes and generates elastic force, which is transmitted to the sensing part (63).

9. An aluminum foil printing device according to claim 3 or 8, characterized in that, The tension adjustment mechanism (6) further includes a locking part (66); the locking part (66) is connected to the telescopic groove (611) and is connected to the telescopic part (64).

10. A method for monitoring the tightness of aluminum foil printing equipment, characterized in that, The aluminum foil printing equipment and controller according to claim 1 include the following steps: Input the sensed value to the controller and set the error range; Roll-up test; The purging mechanism (7) purifies, and the tension adjustment mechanism (6) adjusts the tension simultaneously; The tension adjustment mechanism (6) adjusts the tension according to the purging force, and saves the recording point after reaching the sensing value.

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