Secondary turnover device for cold stamping film

Abstract

The invention provides a secondary turnover device for a cold stamping film, and relates to the technical field of cold stamping equipment. The device comprises an upper rolling mechanism, a lower rolling mechanism, a reversing adjusting mechanism, a cold ironing mechanism, a rolling mechanism, a fixed mounting mechanism and a cold ironing control unit which are all arranged on the fixed mounting mechanism. The upper winding mechanism, the lower winding mechanism, the reversing adjusting mechanism and the winding mechanism are all located above the reversing adjusting mechanism. The roll-up mechanism is close to the front relative to the roll-down mechanism in the cold ironing direction; the winding mechanism is located on one side of the winding mechanism. The reversing adjusting mechanism is located between the roll discharging mechanism and the cold ironing mechanism. The cold ironing control unit is connected with the upper rolling mechanism, the lower rolling mechanism, the reversing adjusting mechanism, the cold ironing mechanism and the rolling mechanism. According to the device, the cold stamping content of the cold stamping film needle is reasonably and secondarily overturned and utilized, and reasonable cold stamping position typesetting is carried out in combination with the cold stamping content, so that the utilization efficiency of the cold stamping film is greatly improved, and the material and production cost of the cold stamping film are effectively saved.

Description

Technical Field

[0001] The invention relates to the technical field of cold stamping equipment, and in particular to a secondary turning device for cold stamping film. Background Art

[0002] The cold foil process is increasingly used in the light industry and packaging and printing industries. Cold foil makes packaging more exquisite and pleasing to the eye. For the cold foil film used in the cold foil process, cold foil is performed by laminating it with the substrate. In order to ensure the continuity of production and improve production efficiency, the cold foil film is rolled up and unrolled during the cold foil process to be synchronously laminated with the substrate.

[0003] However, at present, there is a waste of cold stamping film in the cold stamping process, especially when the cold stamping content is small in scope and quantity, it will cause a large amount of waste of cold stamping film, which is not conducive to the control of production costs. Therefore, how to reasonably utilize cold stamping film in production has become an important issue that needs to be solved. At present, there are some ways to efficiently utilize cold stamping film, but the results are not high. Reusing cold stamping film with the help of secondary flipping is one way, but how to efficiently utilize secondary flipping requires further in-depth research.

[0004] Therefore, designing a secondary flipping device for cold stamping film, which can perform a reasonable secondary flipping of the cold stamping film according to the cold stamping content and reasonably arrange the cold stamping position according to the cold stamping content, greatly improves the utilization efficiency of the cold stamping film and effectively saves the material and production cost of the cold stamping film, is an urgent problem to be solved. Summary of the invention

[0005] The object of the present invention is to provide a secondary flipping device for cold stamping film, which alternately unwinds and synchro-nizes with the substrate through an upper roll mechanism and a lower roll mechanism to complete the cold stamping process. Since the upper roll mechanism and the lower roll mechanism alternately unwind and rewind, the same roll of cold stamping film can be repeatedly rewinded and unwinded, and the position of the cold stamping film can be adjusted according to the cold stamping content under the control and adjustment of the cold stamping control unit, so as to fully utilize the cold stamping film to the maximum extent possible, which greatly solves the use of the cold stamping film in the production process. On the one hand, it not only solves the production and use cost of the cold stamping film, but also saves the process of replacing the cold stamping film in the process of alternating use of the same roll of cold stamping film, and effectively improves the cold stamping efficiency. At the same time, the reversing adjustment mechanism reasonably adjusts the transmission direction of the cold stamping film during the cold stamping process to ensure the lamination with the substrate, and also controls the tension of the cold stamping film to ensure the effect of cold stamping. The rewinding mechanism can perform corresponding alternating rewinding according to the alternating unwinding of the upper roll mechanism and the lower roll mechanism, so that the alternating rewinding is faster, and the fixed installation mechanism provides a space platform for the position setting of the entire cold stamping mechanism, so that the layout of the secondary flipping cold stamping mechanism is more reasonable. In addition, the cold perm control unit realizes synchronous control of the entire cold perm mechanism to ensure the orderly and efficient alternating cold perm.

[0006] In a first aspect, the present invention provides a secondary turning device for cold stamping film, comprising an upper rolling mechanism, a lower rolling mechanism, a reversing adjustment mechanism, a cold stamping mechanism, a rewinding mechanism, a fixed installation mechanism and a cold stamping control unit; the upper rolling mechanism, the lower rolling mechanism, the reversing adjustment mechanism, the cold stamping mechanism and the rewinding mechanism are all arranged on the fixed installation mechanism; the upper rolling mechanism, the lower rolling mechanism, the reversing adjustment mechanism and the rewinding mechanism are all located above the reversing adjustment mechanism; the upper rolling mechanism and the lower rolling mechanism alternately unwind and rewind the cold stamping film, and the upper rolling mechanism is closer to the front of the lower rolling mechanism along the cold stamping direction; the rewinding mechanism is located on one side of the upper rolling mechanism; The direction adjustment mechanism is located between the lower roll mechanism and the cold foil mechanism; the cold foil control unit is respectively connected with the upper roll mechanism, the lower roll mechanism, the direction reversing adjustment mechanism, the cold foil mechanism and the winding mechanism; the substrate is guided to the cold foil mechanism through one end of the direction reversing adjustment mechanism for cold foiling, and is guided by the other end of the direction reversing adjustment mechanism after cold foiling, and is selected to be wound on the upper roll mechanism and the lower roll mechanism under the control of the winding mechanism; the cold foil control unit controls the relative positions of the upper roll mechanism and the lower roll mechanism in the direction of the winding shaft, so as to realize the alternating unwinding and winding of the substrate on the upper roll mechanism and the lower roll mechanism and the cold foil position arrangement on the cold foil film.

[0007] In the present invention, the device alternately unwinds synchronously with the substrate through the upper roll mechanism and the lower roll mechanism to complete the cold stamping process. Since the upper roll mechanism and the lower roll mechanism alternately unwind and rewind, the same roll of cold stamping film can be repeatedly rewinded and unwinded, and the position of the cold stamping film can be adjusted according to the cold stamping content under the control and adjustment of the cold stamping control unit, so as to fully utilize the cold stamping film to the maximum extent possible, which greatly solves the use of the cold stamping film in the production process. On the one hand, it not only solves the production and use costs of the cold stamping film, but also saves the process of replacing the cold stamping film in the process of alternating use of the same roll of cold stamping film, and effectively improves the cold stamping efficiency. At the same time, the reversing adjustment mechanism reasonably adjusts the transmission direction of the cold stamping film during the cold stamping process to ensure the lamination with the substrate, and also controls the tension of the cold stamping film to ensure the effect of cold stamping. The rewinding mechanism can perform corresponding alternating rewinding according to the alternating unwinding of the upper roll mechanism and the lower roll mechanism, so that the alternating rewinding is faster, and the fixed installation mechanism provides a space platform for the position setting of the entire cold stamping mechanism, so that the layout of the secondary flip cold stamping mechanism is more reasonable. In addition, the cold perm control unit realizes synchronous control of the entire cold perm mechanism to ensure the orderly and efficient alternating cold perm.

[0008] As a possible implementation method, the upper rolling mechanism includes an upper position adjustment roller, an upper winding guide roller, an upper unwinding guide roller, a first upper reversing roller and a second upper reversing roller, all of which are connected to the cold stamping control unit; one end of the upper position adjustment roller is telescopically arranged on the fixed installation mechanism; the upper unwinding guide roller is arranged on the end of the upper position adjustment roller away from the winding mechanism; the upper winding guide roller is arranged on the side of the upper position adjustment roller opposite to the upper unwinding guide roller; the first upper reversing roller is located below the upper unwinding guide roller; the second upper reversing roller is located below the first upper reversing roller; the cold stamping film on the upper position adjustment roller passes through the upper unwinding guide roller, the first upper reversing roller and the second upper reversing roller in sequence and reaches the reversing adjustment mechanism.

[0009] In the present invention, the upper roll mechanism is a winding and unwinding structure located above the lower roll mechanism on the fixed installation mechanism. Usually, the upper roll mechanism is a winding and unwinding mechanism that lags behind the lower roll mechanism during the alternating operation, that is, when the cold stamping is usually started, the cold stamping film is first placed on the lower roll mechanism, and then enters the upper roll mechanism through the winding. In order to ensure that the upper roll mechanism can smoothly and efficiently unwind and rewind the cold stamping film, an upper winding guide roller for guiding the winding and an upper unwinding guide roller for guiding the initial unwinding are provided, and the interval between the upper position adjustment roller and the upper winding guide roller and the upper unwinding guide roller is set according to the winding diameter of the cold stamping film to ensure smooth winding and unwinding. Of course, the upper roll mechanism is far away from the cold stamping mechanism, so it is necessary to set a reversing roller to guide the transmission direction. At the same time, considering the reasonable layout, a first upper reversing roller and a second upper reversing roller are provided for reversing guidance. For the upper roll mechanism, the speed is controlled by the cold stamping control unit to achieve efficient and reasonable alternating flipping synchronous cold stamping.

[0010] As a possible implementation method, the lower rolling mechanism includes a lower position adjustment roller, a lower winding guide roller, a lower unwinding guide roller and a first lower reversing roller, all of which are connected to the cold stamping control unit; one end of the lower position adjustment roller is telescopically arranged on the fixed mounting mechanism; the lower unwinding guide roller is arranged on the end of the lower position adjustment roller away from the winding mechanism; the lower winding guide roller is arranged on the side of the lower position adjustment roller opposite to the lower unwinding guide roller; the first lower reversing roller is located below the lower unwinding guide roller; the cold stamping film on the lower position adjustment roller passes through the lower unwinding guide roller and the first lower reversing roller in sequence and reaches the reversing adjustment mechanism.

[0011] In the present invention, the lower roll mechanism is similar to the upper roll mechanism in that a lower unwinding guide roller and a lower winding guide roller are provided for unwinding and winding guidance, and the first lower line-changing roller is provided to guide the cold foil film transmission direction. Here, the first lower reversing roller is actually a reversing roller shared with the upper roll mechanism, and can also guide the cold foil film transmitted by the second upper reversing roller of the upper averaging mechanism. Similarly, the lower roll mechanism reasonably controls the rotation speed through the cold foil control unit to complete efficient alternating flipping synchronous cold foiling.

[0012] As a possible implementation, the reversing adjustment mechanism includes a front moving adjustment roller, a front moving actuator, a rear moving adjustment roller, a rear moving actuator and a force sensor; the front moving actuator and the rear moving actuator are fixedly arranged on the fixed installation mechanism, and the front moving actuator is closer to the front of the rear moving actuator in the cold stamping direction; one end of the front moving adjustment roller is connected to the front moving actuator, and the front moving adjustment roller is actuated in the cold stamping direction under the actuation of the front moving actuator; one end of the rear moving adjustment roller is connected to the rear moving actuator, and the rear moving adjustment roller is actuated in the opposite direction of the cold stamping direction under the actuation of the rear moving actuator; the force sensors are respectively arranged on the front moving adjustment roller and the rear moving adjustment roller; the front moving actuator, the rear moving actuator and the force sensor are all connected to the cold stamping control unit.

[0013] In the present invention, the reversing adjustment mechanism has two important functions. One is to receive the cold stamping film guided by the upper roll mechanism or the lower roll mechanism and guide it to the cold stamping mechanism to be bonded with the substrate for cold stamping. The other is that the cold stamping film will change its tension due to factors such as the friction of the roller during the guiding process. Therefore, it is necessary to ensure a reasonable tension before bonding with the substrate to avoid defects such as wrinkles in the bonding that affect the cold stamping effect. Therefore, the reversing adjustment mechanism moves the adjustment roller through the actuator to adjust the tension of the cold stamping film. Of course, the force sensor can feedback the tension of the cold stamping film in real time to adjust the tension of the cold stamping film more accurately and timely. It can be understood that for the cold stamping of the cold stamping film, tension adjustment needs to be provided at both ends so that the cold stamping film and the substrate can be bonded optimally during the entire cold stamping process to ensure the cold stamping effect.

[0014] As a possible implementation method, the winding mechanism includes a first winding reversing roller, a second winding reversing roller, a third winding reversing roller, an upper and lower winding selection roller and a fourth winding reversing roller; the first winding reversing roller, the second winding reversing roller and the third winding reversing roller are all located below the lower winding mechanism, and the third winding reversing roller is close to the lower winding mechanism; the upper and lower winding selection rollers are located above the third winding reversing roller; the upper and lower winding selection rollers are movably arranged on the fixed installation mechanism, and the movement direction of the upper and lower winding selection rollers is The fourth winding reversing roller is located above the upper and lower winding selection rollers; the cold foil film separated from the cold foil mechanism passes through the first winding reversing roller, the second winding reversing roller and the third winding reversing roller in sequence, and the movement of the upper and lower winding selection rollers determines whether the cold foil film is wound on the lower winding mechanism or wound on the upper winding mechanism after passing through the fourth winding reversing roller; the first winding reversing roller, the second winding reversing roller, the third winding reversing roller, the upper and lower winding selection rollers and the fourth winding reversing roller are all connected to the cold foil control unit.

[0015] In the present invention, the winding mechanism, on the one hand, guides the cold foil film reasonably after cold foiling, and on the other hand, completes the alternate winding of the cold foil film. It should be noted that the guide directions formed by the reversing rollers of the winding mechanism are perpendicular to each other, which can maximize the friction area of ​​the rollers on the cold foil film to ensure that the cold foil film will not be loosened. The upper and lower winding reversing rollers change their positions by moving, and then adjust the guiding direction to achieve the alternate winding and guiding of the cold foil film.

[0016] As a possible implementation, the cold stamping operation width of the cold stamping mechanism is greater than the width of the cold stamping film used for the cold stamping.

[0017] In the present invention, it should be noted that for the secondary flipping of the cold stamping film, in order to more reasonably arrange the cold stamping film, the alternating flipping will be staggered from the original cold stamping position, so it is necessary to provide space for the staggered position. Therefore, in order to ensure that the cold stamping film is not damaged and wrinkles caused by the staggered position are not caused, the cold operating width of the cold stamping mechanism should be greater than the width of the cold stamping film, so that the cold stamping film can be arranged with space margin when staggered.

[0018] As a possible implementation method, the cold stamping film secondary flipping device is configured to: determine the initial unwinding position according to the cold stamping content, and calibrate the initial cold stamping position of the cold stamping content on the initially unrolled cold stamping film; determine the secondary flipping parameters according to the initial cold stamping position and the size of the cold stamping film to form secondary flipping control data; perform secondary flipping cold stamping according to the secondary flipping control data, monitor the real-time cold stamping parameters of the cold stamping film, and adjust the cold stamping parameters according to the real-time monitoring results.

[0019] In the present invention, the secondary reversal cold stamping process is different from the commonly seen cold stamping process, and thus a reasonable control method is provided for the secondary reversal device. First, the unwinding position needs to be determined based on the cold stamping content. On the one hand, targeted position calibration based on the cold stamping content can improve the utilization rate of the cold stamping film with different cold stamping contents. On the other hand, it provides a reasonable reference to accurately control the position of the unwinding and winding movement of the upper and lower winding mechanisms. Since the secondary reversal cold stamping will use the same cold stamping film for multiple cold stampings, it is necessary to obtain the mechanism control data based on multiple cold stampings to provide control data for the cold stamping control mechanism. Considering the effect of cold stamping in the real-time cold stamping process, it is necessary to detect the cold stamping process and make reasonable data recording adjustments for alternating winding.

[0020] As a possible implementation method, the secondary flipping parameters are determined according to the initial cold stamping position and the size of the cold stamping film to form the secondary flipping control data, including: using the cold stamping mark point on the cold stamping plane of the cold stamping mechanism as a reference point, calibrating the initial cold stamping position of the unit substrate to form the cold stamping calibration initial position; determining the cold stamping width size W of the cold stamping content in the direction perpendicular to the cold stamping direction according to the initial cold stamping position p ; Determine the cold-iron length L of the cold-iron content along the cold-iron direction according to the initial cold-iron position p ; Set the effective cold stamping width interval W gap , and according to the effective cold stamping width interval W gap , Cold stamping width W p And the effective cold stamping width W of the cold stamping plane work , determine the number of secondary flips C, where: Express Take an integer; take the cold stamping mark as a reference, determine the initial unwinding position of the upper and lower roll mechanisms according to the cold stamping initial position; set the effective cold stamping length interval L gap , and according to the effective cold stamping length interval L gap , cold stamping length L p And the effective spacing L between adjacent unit substrates work , determine the number of line feed flips H, where:

[0021] Express Take an integer; (W gap +W p ) is used as a reference, the telescopic movement positions of the upper and lower rolling mechanisms in the direction perpendicular to the cold stamping direction are determined alternately each time, and the sum of the alternating movement times is equal to the secondary flipping times C, forming the secondary flipping movement information of a single row alternating sequence; the secondary flipping movement information of a single row alternating sequence and the line feed flipping times H are combined to form the secondary flipping control data.

[0022] In the present invention, the extraction of the secondary flip control data mainly includes two aspects. On the one hand, the width margin that can be adjusted by the upper and lower rolling mechanisms in the process of alternating movement along the vertical cold stamping direction based on the cold stamping content is the data basis for making full use of the cold stamping film dosage in the width direction. Of course, a certain interval should be ensured between the positions of each cold stamping, which is a necessary material loss to avoid adverse effects on the cold stamping effect, such as edge loss. At the same time, the total number of alternating cold stampings should be obtained to count the number of alternations in the subsequent real-time cold stamping process, and then provide a threshold judgment for line feed to continue alternation. On the other hand, there are also intervals between unit substrates, but the material retention caused by the position adjustment along the vertical cold stamping direction cannot be fully utilized, so the line feed misalignment needs to be considered to use the cold stamping film material more effectively. Similar to the horizontal alternation, the line feed misalignment also needs to consider a certain interval margin to ensure the cold stamping effect, and the number of line feed alternations also needs to be determined according to the cold stamping content to provide a reference for threshold judgment for replacing a new cold stamping film.

[0023] As a possible implementation method, secondary reversal cold stamping is performed according to secondary reversal control data, and real-time cold stamping parameters of the cold stamping film are monitored, and cold stamping parameters are adjusted according to real-time monitoring results, including: adjusting the positions of the upper and lower roll mechanisms according to the initial unwinding position; performing alternating movement unwinding control on the upper and lower roll mechanisms according to the alternating sequence secondary reversal movement data, and performing corresponding alternating rewinding control on the rewinding mechanism; obtaining the real-time tension of the cold stamping film acting on the reversing adjustment mechanism, and performing cold stamping tension control according to the real-time tension of the cold stamping film; counting the number of alternations of the upper and lower roll mechanisms in real time, and when the total number of alternations reaches the secondary reversal number C, controlling the upper and lower roll mechanisms to return to the initial unwinding position, and synchronizing the unwinding speed with the substrate movement speed to perform staggered cold stamping until the number of staggered lines reaches the line feed reversal number H.

[0024] In the present invention, the cold stamping process of the cold stamping film is monitored in real time, and two aspects are mainly considered. One is the tension monitoring of the cold stamping film to ensure that the cold stamping film is cold stamped with the substrate within a reasonable tension range. The control of the tension affects the effect of cold stamping, so real-time monitoring is required, and the reversing adjustment mechanism is used to adjust the tension through the monitoring information feedback. On the other hand, the number of alternating cold stamping in the width direction and the number of line break misalignment in the length direction are counted. The number of alternating cold stamping in the width direction is counted for the line break misalignment adjustment, and the number of line break misalignment in the length direction is counted for the replacement of the new cold stamping film. It can be understood that each horizontal alternation will have a certain stay, that is, waiting for the remaining cold stamping film to be rolled up before unwinding, so it is necessary to synchronously control the conveying speed of the substrate to ensure synchronous laminating operations. Of course, the conveying speed of the substrate also needs to be considered for the line break operation to achieve line break misalignment adjustment.

[0025] As a possible implementation method, the real-time tension of the cold stamping film acting on the reversing adjustment mechanism is obtained, and the cold stamping tension is controlled according to the real-time tension of the cold stamping film, including: setting a preset cold stamping tension, and performing the following control analysis according to the real-time tension of the cold stamping film: when the real-time tension of the cold stamping film is less than the preset cold stamping tension, an inward movement control information is generated to control the reversing adjustment mechanism to move closer until the real-time tension of the cold stamping film is equal to the preset cold stamping tension; when the real-time tension of the cold stamping film is greater than the preset cold stamping tension, an outward movement control information is generated to control the reversing adjustment mechanism to move apart until the real-time tension of the cold stamping film is equal to the preset cold stamping tension.

[0026] In the present invention, the tension monitoring of the cold foil film mainly involves collecting the real-time tension value and comparing it with the preset tension value, and then moving the roller of the reversing adjustment mechanism according to the comparison result to adjust the tension.

[0027] The beneficial effects of the cold foil secondary turning device provided by the present invention are as follows:

[0028] The device uses the upper roll mechanism and the lower roll mechanism to alternately unwind synchronously with the substrate to complete the cold stamping process. Since the upper roll mechanism and the lower roll mechanism alternately unwind and rewind, the same roll of cold stamping film can be repeatedly rewinded and unwinded, and the position of the cold stamping film can be adjusted according to the cold stamping content under the control and adjustment of the cold stamping control unit, so as to fully utilize the cold stamping film to the maximum extent possible, which greatly solves the use of the cold stamping film in the production process. On the one hand, it not only solves the production and use costs of the cold stamping film, but also saves the process of replacing the cold stamping film during the alternating use of the same roll of cold stamping film, and effectively improves the cold stamping efficiency. At the same time, the reversing adjustment mechanism reasonably adjusts the transmission direction of the cold stamping film during the cold stamping process to ensure the lamination with the substrate, and also controls the tension of the cold stamping film to ensure the effect of cold stamping. The rewinding mechanism can perform corresponding alternating rewinding according to the alternating unwinding of the upper roll mechanism and the lower roll mechanism, making the alternating rewinding faster. The fixed installation mechanism provides a space platform for the position setting of the entire cold stamping mechanism, making the layout of the secondary flip cold stamping mechanism more reasonable. In addition, the cold perm control unit realizes synchronous control of the entire cold perm mechanism to ensure the orderly and efficient alternating cold perm. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic diagram of the structure of a secondary flipping device for cold foil provided in an embodiment of the present invention;

[0031] Figure 2 This is a step diagram of a device for secondary flipping of cold foil provided in an embodiment of the present invention.

[0032] Label:

[0033] 01. Upper winding mechanism; 11. Upper position adjustment roller; 12. Upper winding guide roller; 13. Upper unwinding guide roller; 14. First upper reversing roller; 15. Second upper reversing roller; 02. Lower winding mechanism; 21. Lower position adjustment roller; 22. Lower winding guide roller; 23. Lower unwinding guide roller; 24. First lower reversing roller; 03. Reversing adjustment mechanism; 31. Front moving actuator; 32. Front moving adjustment roller; 33. Rear moving actuator; 34. Rear moving adjustment roller; 04. Cold stamping mechanism; 05. Fixed installation mechanism; 06. Winding mechanism; 61. First winding reversing roller; 62. Second winding reversing roller; 63. Third winding reversing roller; 64. Upper and lower winding selection rollers; 65. Fourth winding reversing roller; X. Cold stamping direction. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] The cold foil process is increasingly used in the light industry and packaging and printing industries. Cold foil makes packaging more exquisite and pleasing to the eye. For the cold foil film used in the cold foil process, cold foil is performed by laminating it with the substrate. In order to ensure the continuity of production and improve production efficiency, the cold foil film is rolled up and unrolled during the cold foil process to be synchronously laminated with the substrate.

[0036] However, at present, there is a waste of cold stamping film in the cold stamping process, especially when the cold stamping content is small in scope and quantity, it will cause a large amount of waste of cold stamping film, which is not conducive to the control of production costs. Therefore, how to reasonably utilize cold stamping film in production has become an important issue that needs to be solved. At present, there are some ways to efficiently utilize cold stamping film, but the results are not high. Reusing cold stamping film with the help of secondary flipping is one way, but how to efficiently utilize secondary flipping requires further in-depth research.

[0037] refer to Figure 1 The embodiment of the present invention provides a secondary turning device for cold stamping film, which comprises an upper rolling mechanism 01, a lower rolling mechanism 02, a reversing adjustment mechanism 03, a cold stamping mechanism 04, a rewinding mechanism 06, a fixed installation mechanism 05 and a cold stamping control unit; the upper rolling mechanism 01, the lower rolling mechanism 02, the reversing adjustment mechanism 03, the cold stamping mechanism 04 and the rewinding mechanism 06 are all arranged on the fixed installation mechanism 05; the upper rolling mechanism 01, the lower rolling mechanism 02, the reversing adjustment mechanism 03 and the rewinding mechanism 06 are all located above the reversing adjustment mechanism 03; the upper rolling mechanism 01 and the lower rolling mechanism 02 alternately unwind and rewind the cold stamping film, and the upper rolling mechanism 01 is closer to the front of the lower rolling mechanism 02 along the cold stamping direction X; the rewinding mechanism 06 is located at the upper rolling mechanism 01; the reversing adjustment mechanism 03 is located between the lower roll mechanism 02 and the cold stamping mechanism 04; the cold stamping control unit is respectively connected to the upper roll mechanism 01, the lower roll mechanism 02, the reversing adjustment mechanism 03, the cold stamping mechanism 04 and the winding mechanism 06; the substrate is guided to the cold stamping mechanism 04 through one end of the reversing adjustment mechanism 03 for cold stamping, and after cold stamping, it is guided by the other end of the reversing adjustment mechanism 03 to be wound on the upper roll mechanism 01 and the lower roll mechanism 02 under the control of the winding mechanism 06; the cold stamping control unit controls the relative positions of the upper roll mechanism 01 and the lower roll mechanism 02 in the direction of the winding shaft, so as to realize the alternating unwinding and winding of the substrate on the upper roll mechanism 01 and the lower roll mechanism 02 and the cold stamping position arrangement on the cold stamping film.

[0038] The device uses the upper roll mechanism 01 and the lower roll mechanism 02 to alternately unwind and unwind synchronously with the substrate to complete the cold stamping process. Since the upper roll mechanism 01 and the lower roll mechanism 02 alternately unwind and rewind, the same roll of cold stamping film can be repeatedly unwound and rewound, and the position of the cold stamping film can be adjusted according to the cold stamping content under the control and adjustment of the cold stamping control unit, thereby fully utilizing the cold stamping film to the maximum extent possible, greatly solving the use of the cold stamping film in the production process. On the one hand, it not only solves the production and use costs of the cold stamping film, but also saves the process of replacing the cold stamping film during the alternating use of the same roll of cold stamping film, effectively improving the cold stamping efficiency. At the same time, the reversing adjustment mechanism 03 reasonably adjusts the transmission direction of the cold stamping film during the cold stamping process to ensure the bonding with the substrate, and also controls the tension of the cold stamping film to ensure the effect of cold stamping. The rewinding mechanism 06 can perform corresponding alternate rewinding according to the alternate unwinding of the upper rewinding mechanism 01 and the lower rewinding mechanism 02, making the alternate rewinding faster, and the fixed installation mechanism 05 provides a space platform for the entire cold perm mechanism 04, making the layout of the secondary flip cold perm mechanism 04 more reasonable. In addition, the cold perm control unit realizes synchronous control of the entire cold perm mechanism 04, ensuring the orderly and efficient alternating flip cold perm.

[0039] Specifically, the winding mechanism 01 includes an upper position adjustment roller 11, an upper winding guide roller 12, an upper unwinding guide roller 13, a first upper reversing roller 14 and a second upper reversing roller 15, all of which are connected to the cold stamping control unit; one end of the upper position adjustment roller 11 is telescopically arranged on the fixed installation mechanism 05; the upper unwinding guide roller 13 is arranged on the end of the upper position adjustment roller 11 away from the winding mechanism 06; the upper winding guide roller 12 is arranged on the side of the upper position adjustment roller 11 opposite to the upper unwinding guide roller 13; the first upper reversing roller 14 is located below the upper unwinding guide roller 13; the second upper reversing roller 15 is located below the first upper reversing roller 14; the cold stamping film on the upper position adjustment roller 11 passes through the upper unwinding guide roller 13, the first upper reversing roller 14 and the second upper reversing roller 15 in sequence and reaches the reversing adjustment mechanism 03.

[0040] The upper roll mechanism 01 is a winding and unwinding structure located above the lower roll mechanism 02 on the fixed installation mechanism 05. Usually, the upper roll mechanism 01 is a winding and unwinding mechanism that lags behind the lower roll mechanism 02 during the alternating operation. That is, when the cold stamping is started, the cold stamping film is first placed on the lower roll mechanism 02 and then enters the upper roll mechanism 01 through the winding. In order to ensure that the upper roll mechanism 01 can smoothly and efficiently unwind and rewind the cold stamping film, an upper winding guide roller 12 for guiding the winding and an upper unwinding guide roller 13 for guiding the initial unwinding are provided. The interval between the upper position adjustment roller 11 and the upper winding guide roller 12 and the upper unwinding guide roller 13 is set according to the winding diameter of the cold stamping film to ensure smooth winding and unwinding. Of course, the upper roll mechanism 01 is far away from the cold stamping mechanism 04, so it is necessary to set a reversing roller to guide the transmission direction. At the same time, considering the reasonable layout, a first upper reversing roller 14 and a second upper reversing roller 15 are provided for reversing guidance. For the winding mechanism 01, the rotation speed is controlled by the cold-ironing control unit to achieve efficient and reasonable alternating turning and synchronous cold-ironing.

[0041] The lower rolling mechanism 02 includes a lower position adjustment roller 21, a lower winding guide roller 22, a lower unwinding guide roller 23 and a first lower reversing roller 24, all of which are connected to the cold stamping control unit; one end of the lower position adjustment roller 21 is telescopically arranged on the fixed installation mechanism 05; the lower unwinding guide roller 23 is arranged on the end of the lower position adjustment roller 21 away from the winding mechanism 06; the lower winding guide roller 22 is arranged on the side of the lower position adjustment roller 21 opposite to the lower unwinding guide roller 23; the first lower reversing roller 24 is located below the lower unwinding guide roller 23; the cold stamping film on the lower position adjustment roller 21 passes through the lower unwinding guide roller 23 and the first lower reversing roller 24 in turn and reaches the reversing adjustment mechanism 03.

[0042] The lower roll mechanism 02 is similar to the upper roll mechanism 01 in that a lower unwinding guide roller 23 and a lower winding guide roller 22 are provided for unwinding and winding guidance, and the first lower line-changing roller is provided to guide the cold foil film transmission direction. The first lower reversing roller 24 is actually a reversing roller shared with the upper roll mechanism 01, and can also guide the cold foil film transmitted by the second upper reversing roller 15 of the upper averaging mechanism. Similarly, the lower roll mechanism 02 reasonably controls the rotation speed through the cold foil control unit to achieve efficient alternating flipping synchronous cold foiling.

[0043] The reversing adjustment mechanism 03 includes a front moving adjustment roller 32, a front moving actuator 31, a rear moving adjustment roller 34, a rear moving actuator 33 and a force sensor; the front moving actuator 31 and the rear moving actuator 33 are fixedly arranged on the fixed installation mechanism 05, and the front moving actuator 31 is closer to the front of the rear moving actuator 33 in the cold stamping direction X; one end of the front moving adjustment roller 32 is connected to the front moving actuator 31, and the front moving adjustment roller 32 is actuated along the cold stamping direction X under the actuation of the front moving actuator 31; one end of the rear moving adjustment roller 34 is connected to the rear moving actuator 33, and the rear moving adjustment roller 34 is actuated in the opposite direction of the cold stamping direction X under the actuation of the rear moving actuator 33; the force sensors are respectively arranged on the front moving adjustment roller 32 and the rear moving adjustment roller 34; the front moving actuator 31, the rear moving actuator 33 and the force sensor are all connected to the cold stamping control unit.

[0044] The reversing adjustment mechanism 03 has two important functions. One is to receive the cold stamping film guided by the upper roll mechanism 01 or the lower roll mechanism 02 and to guide it to the cold stamping mechanism 04 to be bonded to the substrate for cold stamping. The other is that the cold stamping film will change its tension due to factors such as the friction of the roller during the guiding process. Therefore, it is necessary to ensure a reasonable tension before bonding with the substrate to avoid defects such as wrinkles that affect the cold stamping effect. Therefore, the reversing adjustment mechanism 03 moves the adjustment roller through the actuator to adjust the cold stamping film tension. Of course, the force sensor can feedback the cold stamping film tension in real time to adjust the cold stamping film tension more accurately and timely. It can be understood that for cold stamping of the cold stamping film, tension adjustment needs to be provided at both ends to ensure that the cold stamping film and the substrate are optimally bonded during the entire cold stamping process to ensure the cold stamping effect.

[0045] The winding mechanism 06 includes a first winding reversing roller 61, a second winding reversing roller 62, a third winding reversing roller 63, an upper and lower winding selection roller 64 and a fourth winding reversing roller 65; the first winding reversing roller 61, the second winding reversing roller 62 and the third winding reversing roller 63 are all located below the lower winding mechanism 02, and the third winding reversing roller 63 is close to the lower winding mechanism 02; the upper and lower winding selection rollers 64 are located above the third winding reversing roller 63; the upper and lower winding selection rollers 64 are movably arranged on the fixed installation mechanism 05, and the moving direction of the upper and lower winding selection rollers 64 is in line with the cold ironing direction. The fourth winding reversing roller 65 is located above the upper and lower winding selection rollers 64; the cold foil film separated from the cold foil mechanism 04 passes through the first winding reversing roller 61, the second winding reversing roller 62 and the third winding reversing roller 63 in sequence, and the movement of the upper and lower winding selection rollers 64 determines whether the cold foil film is wound on the lower winding mechanism 02 or wound on the upper winding mechanism 01 after passing through the fourth winding reversing roller 65; the first winding reversing roller 61, the second winding reversing roller 62, the third winding reversing roller 63, the upper and lower winding selection rollers 64 and the fourth winding reversing roller 65 are all connected to the cold foil control unit.

[0046] On the one hand, the winding mechanism 06 guides the cold foil film after cold foiling reasonably, and on the other hand, it also completes the alternating winding of the cold foil film. It should be noted that the guide directions formed by the reversing rollers of the winding mechanism 06 are perpendicular to each other, which can maximize the friction area of ​​the rollers on the cold foil film to ensure that the cold foil film will not be loose. The upper and lower winding reversing rollers change their positions by moving, and then adjust the guiding direction to achieve the alternating winding and guiding of the cold foil film.

[0047] The cold-ironing operation width of the cold-ironing mechanism 04 is greater than the width of the cold-ironing film used for cold-ironing. It should be noted that for the secondary flipping of the cold-ironing film, in order to more reasonably arrange the cold-ironing film, the alternating flipping will be staggered from the original cold-ironing position, so it is necessary to provide a space for the dislocation. Therefore, in order to ensure that the cold-ironing film is not damaged and wrinkles caused by the dislocation are not caused, the cold-operating width of the cold-ironing mechanism 04 should be greater than the width of the cold-ironing film, so that the cold-ironing film can be arranged with a space margin when the dislocation occurs.

[0048] The post-valve flow measurement of the cold foil secondary flipping device specifically includes the following steps:

[0049] S1: determining an initial unwinding position according to the cold-foaming content, and calibrating an initial cold-foaming position of the cold-foaming content on the initially unwinding cold-foaming film.

[0050] The secondary flip cold stamping process is different from the commonly seen cold stamping process, so a reasonable control method is provided for the secondary flipping device. First, the unwinding position needs to be determined based on the cold stamping content. On the one hand, targeted position calibration based on the cold stamping content can improve the utilization rate of the cold stamping film with different cold stamping contents. On the other hand, it provides a reasonable reference for accurate position control of the unwinding and winding movements of the upper and lower winding mechanisms. Since the secondary flip cold stamping will use the same cold stamping film for multiple times, it is necessary to obtain the mechanism control data based on multiple cold stampings to provide control data for the cold stamping control mechanism. Considering the effect of cold stamping in the real-time cold stamping process, it is necessary to detect the cold stamping process and make reasonable data recording adjustments for alternating winding.

[0051] S2: Determine the secondary flipping parameters according to the initial cold stamping position and the size of the cold stamping film to form secondary flipping control data.

[0052] The secondary flipping parameters are determined according to the initial cold stamping position and the size of the cold stamping film to form the secondary flipping control data, including: using the cold stamping mark point on the cold stamping plane of the cold stamping mechanism as a reference point, calibrating the initial cold stamping position of the unit substrate to form the cold stamping calibration initial position; determining the cold stamping width size W of the cold stamping content in the direction perpendicular to the cold stamping direction according to the initial cold stamping position p; Determine the cold-iron length L of the cold-iron content along the cold-iron direction according to the initial cold-iron position p ; Set the effective cold stamping width interval W gap , and according to the effective cold stamping width interval W gap , Cold stamping width W p And the effective cold stamping width W of the cold stamping plane work , determine the number of secondary flips C, where: Express Take an integer; take the cold stamping mark as a reference, determine the initial unwinding position of the upper and lower roll mechanisms according to the cold stamping initial position; set the effective cold stamping length interval L gap , and according to the effective cold stamping length interval L gap , cold stamping length L p And the effective spacing L between adjacent unit substrates work , determine the number of line feed flips H, where:

[0053] Express Take an integer; (W gap +W p ) is used as a reference, the telescopic movement positions of the upper and lower rolling mechanisms in the direction perpendicular to the cold stamping direction are determined alternately each time, and the sum of the alternating movement times is equal to the secondary flipping times C, forming the secondary flipping movement information of a single row alternating sequence; the secondary flipping movement information of a single row alternating sequence and the line feed flipping times H are combined to form the secondary flipping control data.

[0054] The extraction of secondary flip control data here mainly includes two aspects. On the one hand, the width margin that can be adjusted by the upper and lower rolling mechanisms in the process of alternating movement along the vertical cold stamping direction based on the cold stamping content is the data basis for making full use of the cold stamping film in the width direction. Of course, a certain interval should be guaranteed between the positions of each cold stamping, which is necessary for material loss to avoid adverse effects on the cold stamping effect, such as edge loss. At the same time, the total number of alternating cold stamping should be obtained to count the number of alternations in the subsequent real-time cold stamping process, and then provide a threshold judgment for line feed to continue alternation. On the other hand, there are also intervals between unit substrates, but the material retention caused by position adjustment along the vertical cold stamping direction cannot be fully utilized, so the line feed misalignment needs to be considered to use the cold stamping film material more effectively. Similar to the horizontal alternation, the line feed misalignment also needs to consider a certain interval margin to ensure the cold stamping effect, and the number of line feed alternations also needs to be determined according to the cold stamping content to provide a reference for threshold judgment for replacing a new cold stamping film.

[0055] S3: Perform secondary flip cold stamping according to the secondary flip control data, monitor the real-time cold stamping parameters of the cold stamping film, and adjust the cold stamping parameters according to the real-time monitoring results.

[0056] According to the secondary reversal control data, secondary reversal cold stamping is performed, and the real-time cold stamping parameters of the cold stamping film are monitored, and the cold stamping parameters are adjusted according to the real-time monitoring results, including: adjusting the positions of the upper and lower roll mechanisms according to the initial unwinding position; performing alternating movement unwinding control on the upper and lower roll mechanisms according to the alternating sequence secondary reversal movement data, and performing corresponding alternating rewinding control on the rewinding mechanism; obtaining the real-time tension of the cold stamping film acting on the reversing adjustment mechanism, and performing cold stamping tension control according to the real-time tension of the cold stamping film; counting the number of alternations of the upper and lower roll mechanisms in real time, and when the total number of alternations reaches the secondary reversal number C, controlling the upper and lower roll mechanisms to return to the initial unwinding position, and synchronizing the unwinding speed with the substrate movement speed, and performing staggered cold stamping until the number of staggered lines reaches the number of line change reversals H.

[0057] Real-time monitoring of the cold stamping process of the cold stamping film mainly considers two aspects. One is the tension monitoring of the cold stamping film to ensure that the cold stamping film is cold stamped with the substrate within a reasonable tension range. The control of tension affects the effect of cold stamping, so real-time monitoring is required. The reversing adjustment mechanism is used to adjust the tension through the monitoring information feedback. On the other hand, the number of alternating cold stamping in the width direction and the number of line break misalignment in the length direction are counted. The number of alternating in the width direction is used to judge the line break misalignment adjustment, and the number of line break misalignment in the length direction is used to judge the replacement of the new cold stamping film. It can be understood that each horizontal alternation will have a certain stop, that is, waiting for the remaining cold stamping film to be rolled up before unwinding, so it is necessary to synchronously control the conveying speed of the substrate to ensure synchronous laminating operations. Of course, the conveying speed of the substrate also needs to be considered for the line break operation to achieve line break misalignment adjustment.

[0058] The real-time tension of the cold-foam film acting on the reversing adjustment mechanism is obtained, and the cold-foam tension is controlled according to the real-time tension of the cold-foam film, including: setting the preset cold-foam tension, and performing the following control analysis according to the real-time tension of the cold-foam film: when the real-time tension of the cold-foam film is less than the preset cold-foam tension, an inward movement control information is generated to control the reversing adjustment mechanism to move closer until the real-time tension of the cold-foam film is equal to the preset cold-foam tension; when the real-time tension of the cold-foam film is greater than the preset cold-foam tension, an outward movement control information is generated to control the reversing adjustment mechanism to move apart until the real-time tension of the cold-foam film is equal to the preset cold-foam tension. For the tension monitoring of the cold-foam film, the real-time tension value is collected and compared with the preset tension value, and then the roller of the reversing adjustment mechanism is moved according to the comparison result to adjust the tension.

[0059] In summary, the beneficial effects of the cold foil secondary turning device provided by the embodiment of the present invention are as follows:

[0060] The device uses the upper roll mechanism and the lower roll mechanism to alternately unwind synchronously with the substrate to complete the cold stamping process. Since the upper roll mechanism and the lower roll mechanism alternately unwind and rewind, the same roll of cold stamping film can be repeatedly rewinded and unwinded, and the position of the cold stamping film can be adjusted according to the cold stamping content under the control and adjustment of the cold stamping control unit, so as to fully utilize the cold stamping film to the maximum extent possible, which greatly solves the use of the cold stamping film in the production process. On the one hand, it not only solves the production and use costs of the cold stamping film, but also saves the process of replacing the cold stamping film during the alternating use of the same roll of cold stamping film, and effectively improves the cold stamping efficiency. At the same time, the reversing adjustment mechanism reasonably adjusts the transmission direction of the cold stamping film during the cold stamping process to ensure the lamination with the substrate, and also controls the tension of the cold stamping film to ensure the effect of cold stamping. The rewinding mechanism can perform corresponding alternating rewinding according to the alternating unwinding of the upper roll mechanism and the lower roll mechanism, making the alternating rewinding faster. The fixed installation mechanism provides a space platform for the position setting of the entire cold stamping mechanism, making the layout of the secondary flip cold stamping mechanism more reasonable. In addition, the cold perm control unit realizes synchronous control of the entire cold perm mechanism to ensure the orderly and efficient alternating cold perm.

[0061] In the embodiments of the present application, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain information is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved by means of the arrangement order of each piece of information agreed in advance (for example, specified by the protocol), thereby reducing the indication overhead to a certain extent. At the same time, the common parts of each piece of information can also be identified and indicated uniformly to reduce the indication overhead caused by indicating the same information separately.

[0062] In addition, the specific indication method may also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof. The specific details of the various indication methods can refer to the prior art and will not be repeated herein. As can be seen from the above, for example, when it is necessary to indicate multiple information of the same type, different indication methods may be used for different information. In the specific implementation process, the desired indication method can be selected according to specific needs. The embodiment of the present application does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present application should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.

[0063] It should be understood that the information to be indicated can be sent as a whole, or divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different. The specific sending method is not limited in the embodiment of the present application. Among them, the sending period and / or sending time of these sub-information can be pre-defined, for example, pre-defined according to a protocol, or can be configured by the sending end device by sending configuration information to the receiving end device.

[0064] "Pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in the device, and the embodiments of the present application do not limit the specific implementation method. Among them, "saving" can mean saving in one or more memories. The one or more memories can be set separately or integrated in an encoder or decoder, a processor, or a communication device. The one or more memories can also be partially set separately and partially integrated in a decoder, a processor, or a communication device. The type of memory can be any form of storage medium, which is not limited by the embodiments of the present application.

[0065] The "protocol" involved in the embodiments of the present application may refer to a protocol family in the communication field, a standard protocol with a similar protocol family frame structure, or a related protocol used in future communication systems, and the embodiments of the present application do not make specific limitations on this.

[0066] In the embodiments of the present application, descriptions such as "when...", "in the case of...", "if" and "if" all mean that the device will make corresponding processing under certain objective circumstances. It does not limit the time, nor does it require the device to have a judgment action when implementing it, nor does it mean that there are other limitations.

[0067] In the description of the embodiments of the present application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in the embodiments of the present application is only a description of the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In addition, in the description of the embodiments of the present application, unless otherwise specified, "multiple" refers to two or more than two. "At least one of the following" or its similar expression refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple. In addition, in order to facilitate the clear description of the technical solution of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish the same or similar items with basically the same functions and effects. Those skilled in the art will appreciate that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit the difference. At the same time, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0068] It should be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0069] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0070] The above embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0071] It should be understood that the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship, but it may also indicate an "and / or" relationship. Please refer to the context for specific understanding.

[0072] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0073] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0074] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0075] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0076] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0077] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0078] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0079] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0080] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A secondary turning device for cold foil film, characterized in that: include: An upper roll-up mechanism, a lower roll-up mechanism, a reversing adjustment mechanism, a cold-ironing mechanism, a rewinding mechanism, a fixed installation mechanism and a cold-ironing control unit; the upper roll-up mechanism, the lower roll-up mechanism, the reversing adjustment mechanism, the cold-ironing mechanism and the rewinding mechanism are all arranged on the fixed installation mechanism; the upper roll-up mechanism, the lower roll-up mechanism, the reversing adjustment mechanism and the rewinding mechanism are all located above the reversing adjustment mechanism; the upper roll-up mechanism and the lower roll-up mechanism unwind and rewind the cold-ironing film alternately, and the upper roll-up mechanism is closer to the front of the lower roll-up mechanism along the cold-ironing direction; the rewinding mechanism is located on one side of the upper roll-up mechanism; the reversing adjustment mechanism is located between the lower roll-up mechanism and the cold-ironing mechanism; the cold-ironing control unit is respectively connected to the upper roll-up mechanism, the lower roll-up mechanism, the reversing adjustment mechanism, the cold-ironing mechanism and the rewinding mechanism; The substrate is guided to the cold foil mechanism through one end of the reversing adjustment mechanism for cold foiling, and is guided by the other end of the reversing adjustment mechanism after cold foiling, and is selected to be foiled on the upper foil mechanism and the lower foil mechanism under the control of the winding mechanism; the cold foil control unit controls the relative positions of the upper foil mechanism and the lower foil mechanism in the direction of the winding shaft, so as to realize the alternating unwinding and winding of the substrate on the upper foil mechanism and the lower foil mechanism, and the arrangement of the cold foil positions on the cold foil film.

2. The cold foil film secondary turning device according to claim 1, characterized in that: The winding mechanism includes an upper position adjustment roller, an upper winding guide roller, an upper unwinding guide roller, a first upper reversing roller and a second upper reversing roller, all of which are connected to the cold stamping control unit; one end of the upper position adjustment roller is telescopically arranged on the fixed installation mechanism; the upper unwinding guide roller is arranged on the end of the upper position adjustment roller away from the winding mechanism; the upper winding guide roller is arranged on the side of the upper position adjustment roller opposite to the upper unwinding guide roller; the first upper reversing roller is located below the upper unwinding guide roller; the second upper reversing roller is located below the first upper reversing roller; the cold stamping film on the upper position adjustment roller passes through the upper unwinding guide roller, the first upper reversing roller and the second upper reversing roller in sequence and reaches the reversing adjustment mechanism.

3. The cold foil film secondary turning device according to claim 2, characterized in that: The lower rolling mechanism includes a lower position adjustment roller, a lower winding guide roller, a lower unwinding guide roller and a first lower reversing roller, all of which are connected to the cold stamping control unit; one end of the lower position adjustment roller is telescopically arranged on the fixed installation mechanism; the lower unwinding guide roller is arranged on the end of the lower position adjustment roller away from the winding mechanism; the lower winding guide roller is arranged on the side of the lower position adjustment roller opposite to the lower unwinding guide roller; the first lower reversing roller is located below the lower unwinding guide roller; the cold stamping film on the lower position adjustment roller passes through the lower unwinding guide roller and the first lower reversing roller in sequence and reaches the reversing adjustment mechanism.

4. The cold foil film secondary turning device according to claim 3, characterized in that: The reversing adjustment mechanism includes a front moving adjustment roller, a front moving actuator, a rear moving adjustment roller, a rear moving actuator and a force sensor; the front moving actuator and the rear moving actuator are fixedly arranged on the fixed installation mechanism, and the front moving actuator is closer to the front of the rear moving actuator in the cold stamping direction; one end of the front moving adjustment roller is connected to the front moving actuator, and the front moving adjustment roller is actuated along the cold stamping direction under the actuation of the front moving actuator; one end of the rear moving adjustment roller is connected to the rear moving actuator, and the rear moving adjustment roller is actuated in the opposite direction of the cold stamping direction under the actuation of the rear moving actuator; the force sensors are respectively arranged on the front moving adjustment roller and the rear moving adjustment roller; the front moving actuator, the rear moving actuator and the force sensor are all connected to the cold stamping control unit.

5. The cold foil film secondary turning device according to claim 4, characterized in that: The winding mechanism comprises a first winding reversing roller, a second winding reversing roller, a third winding reversing roller, an upper and lower winding selection roller and a fourth winding reversing roller; the first winding reversing roller, the second winding reversing roller and the third winding reversing roller are all located below the lower winding mechanism, and the third winding reversing roller is close to the lower winding mechanism; the upper and lower winding selection rollers are located above the third winding reversing roller; the upper and lower winding selection rollers are movably arranged on the fixed installation mechanism, and the moving directions of the upper and lower winding selection rollers are parallel to the cold ironing direction; The fourth winding reversing roller is located above the upper and lower winding selection rollers; the cold stamping film separated from the cold stamping mechanism passes through the first winding reversing roller, the second winding reversing roller and the third winding reversing roller in sequence, and the movement of the upper and lower winding selection rollers determines whether the cold stamping film is wound on the lower winding mechanism or wound on the upper winding mechanism after passing through the fourth winding reversing roller; the first winding reversing roller, the second winding reversing roller, the third winding reversing roller, the upper and lower winding selection rollers and the fourth winding reversing roller are all connected to the cold stamping control unit.

6. The cold foil film secondary turning device according to claim 5, characterized in that: The cold stamping operation width of the cold stamping mechanism is greater than the width of the cold stamping film used for cold stamping.

7. The cold foil film secondary turning device according to claim 6, characterized in that: The cold foil film secondary turning device is configured as follows: Determine the initial unwinding position according to the cold-foaming content, and calibrate the initial cold-foaming position of the cold-foaming content on the initially unwinding cold-foaming film; Determine secondary flipping parameters according to the initial cold stamping position and the size of the cold stamping film to form secondary flipping control data; The secondary reversal cold stamping is performed according to the secondary reversal control data, and the real-time cold stamping parameters of the cold stamping film are monitored, and the cold stamping parameters are adjusted according to the real-time monitoring results.

8. The cold foil film secondary turning device according to claim 7, characterized in that: The determining of the secondary flipping parameters according to the initial cold stamping position and the size of the cold stamping film to form the secondary flipping control data includes: Using the cold stamping mark point on the cold stamping plane of the cold stamping mechanism as a reference point, calibrating the initial cold stamping position of the unit substrate to form a cold stamping calibrated initial position; Determine the cold-waving width W of the cold-waving content in a direction perpendicular to the cold-waving direction according to the initial cold-waving position p ; Determine the cold-ironing length L of the cold-ironing content along the cold-ironing direction according to the initial cold-ironing position p ; Set the effective cold stamping width interval W gap , and according to the effective cold stamping width interval W gap , the cold stamping width dimension W p And the effective cold stamping width W of the cold stamping plane work , determine the number of secondary flips C, where: Express Take the integer; Taking the cold stamping mark point as a reference and according to the cold stamping initial position, determining the initial unwinding position of the upper and lower winding mechanisms; Set the effective cold stamping length interval L gap , and according to the effective cold stamping length interval L gap , the cold stamping length dimension L p And the effective spacing L between adjacent unit substrates work , determine the number of line feed flips H, where: Express Take the integer; With (W gap +W p ) as a reference, alternately determine the telescopic movement positions of the upper rolling mechanism and the lower rolling mechanism each time in the direction perpendicular to the cold stamping direction, and the sum of the alternating movement times is equal to the secondary flipping times C, forming a single-line alternating sequence secondary flipping movement information; The secondary flipping control data is formed by combining the single-line alternating sequence secondary flipping movement information and the line feed flipping times H.

9. The cold foil film secondary turning device according to claim 8, characterized in that: The method of performing secondary reversal cold stamping according to the secondary reversal control data, monitoring the real-time cold stamping parameters of the cold stamping film, and adjusting the cold stamping parameters according to the real-time monitoring results includes: According to the initial unwinding position, the upper winding mechanism and the lower winding mechanism are adjusted in position; According to the alternating sequence secondary flip movement data, the upper winding mechanism and the lower winding mechanism are subjected to alternating movement unwinding control, and the winding mechanism is subjected to corresponding alternating winding control; Acquiring the real-time tension of the cold stamping film acting on the reversing adjustment mechanism, and controlling the cold stamping tension according to the real-time tension of the cold stamping film; The number of alternations of the upper roll-up mechanism and the lower roll-up mechanism is counted in real time. When the total number of alternations reaches the number of secondary flippings C, the upper roll-up mechanism and the lower roll-up mechanism are controlled to return to the initial unwinding position, and the unwinding speed is synchronized with the substrate moving speed to perform staggered cold foiling until the number of staggered lines reaches the number of line change flippings H.

10. The cold foil film secondary turning device according to claim 9, characterized in that: The method of obtaining the real-time tension of the cold stamping film acting on the reversing adjustment mechanism and controlling the cold stamping tension according to the real-time tension of the cold stamping film includes: Set the preset cold foil tension, and perform the following control analysis based on the real-time tension of the cold foil film: When the real-time tension of the cold stamping film is less than the preset cold stamping tension, inward movement control information is generated to control the reversing adjustment mechanism to move closer until the real-time tension of the cold stamping film is equal to the preset cold stamping tension; When the real-time tension of the cold stamping film is greater than the preset cold stamping tension, outward movement control information is generated to control the reversing adjustment mechanism to move separately until the real-time tension of the cold stamping film is equal to the preset cold stamping tension.

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