Improved structure of cold ironing equipment

Abstract

The utility model discloses an improved structure of cold stamping equipment, which comprises a mounting frame, the mounting frame is provided with an unwinding device, a winding device, a first conveying part, a hot stamping component, a second conveying component, a backing material conveying component, a glue spraying device and an electric control device, the second conveying component comprises a hot stamping film conveying roller and a backing material conveying roller, and the hot stamping film conveying roller is provided with a hot stamping film. The hot stamping assembly comprises a hot stamping roller and a supporting roller which rotate synchronously, and is characterized by further comprising a tension sensor, a first color code electric eye and a second color code electric eye, and the first color code electric eye is fixed to the mounting frame and corresponds to a backing material; the tension sensor is arranged between the first conveying piece and the hot stamping roller, and the second color code electric eye is fixed to the mounting frame and corresponds to the hot stamping film; according to the cold stamping equipment, the tension applied to the gold stamping film before hot stamping can be adjusted, so that the gold stamping film corresponds to the position of a pattern to be printed on the backing material.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold stamping printing equipment technical field, especially in kind of cold stamping equipment improvement structure. BACKGROUND

[0002] As a unique printing process, hot stamping has been more and more attention, hot stamping is divided into hot stamping and cold stamping, wherein hot stamping process uses the back of the aluminum foil with hot melt glue, when hot stamping, the temperature and pressure of the hot stamping plate are used to melt the hot melt glue to realize the transfer of the hot stamping foil, cold stamping is a kind of technology that uses UV curing adhesive to transfer the hot stamping foil on the gold stamping film to the printing material with the help of the printing plate, compared with the traditional hot stamping technology, the whole process does not need heating, and does not need special metal hot stamping plate, so it can save a lot of energy, and it is a new technology that meets the green environmental protection requirements.

[0003] A key factor restricting the investment of printing enterprises in cold stamping equipment is that the online post-stamping speed must be consistent with the printing speed, and it is impossible to use skip to realize the saving of hot stamping foil as in hot stamping equipment, and there will be a blank area between the printed objects when printing one by one, so when the gold stamping film is used up once, there will be an unused hot stamping foil area on the gold stamping film, causing waste of the gold stamping film.

[0004] In order to alleviate the above problems, the gold stamping film of the gold stamping film winding roller is placed on the gold stamping film unwinding roller for secondary utilization, but the secondary utilization of the previous gold stamping film is prone to failure, because the gold stamping film is taut under the action of the natural tension between the transmission rollers during the first use, so that the gold stamping film is slightly stretched (this slight stretching is not recoverable after reducing or removing the tension), resulting in that the distance between the adjacent two used hot stamping foil patterns on the gold stamping film (i.e. the unused hot stamping foil area) becomes larger, which is different from the distance between each pattern on the printed object and has a position corresponding error; and this error will accumulate with the conveying, resulting in that the subsequent error becomes larger and larger, affecting the subsequent multiple use of the gold stamping film. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the deficiency of prior art, and provides a cold stamping equipment improvement structure which can adjust the tension of gold stamping film before stamping, and make the position of gold stamping film corresponding to the printed pattern on the base material.

[0006] The utility model aims at solving the deficiency of prior art, and provides a cold stamping equipment improvement structure which can adjust the tension of gold stamping film before stamping, and make the position of gold stamping film corresponding to the printed pattern on the base material.

[0007] A cold stamping equipment improvement structure, comprising a mounting frame, the mounting frame is provided with: unwinding device, winding device, first conveying piece, hot stamping assembly, second conveying assembly, base material conveying assembly, glue spraying device and electric control device, characterized by further comprising tension sensor, first color mark electric eye and second color mark electric eye.

[0008] The second conveying assembly comprises a gold stamping film conveying roller and a base material conveying roller;

[0009] The unwinding device, the winding device, the stamping assembly, the first conveying member and the gold stamping film conveying roller work cooperatively to convey the gold stamping film, one end of the gold stamping film placed on the unwinding device passes through the first conveying member, the stamping assembly and the gold stamping film conveying roller in sequence and is then recycled to the winding device;

[0010] The base material conveying assembly is used to convey the base material through the stamping assembly, the base material passing through the stamping assembly is continuously conveyed to the corresponding position by the base material conveying roller, and the glue spraying device sprays glue to the pattern to be printed position of the base material;

[0011] The stamping assembly comprises stamping rollers and supporting rollers rotating synchronously, and the base material and the gold stamping film pass through between the stamping rollers and the supporting rollers in close contact, so that the stamping foil on the gold stamping film is transferred to the pattern to be printed of the base material;

[0012] The first color mark electric eye is fixed on the mounting frame and corresponds to the base material;

[0013] The tension sensor is arranged between the first conveying member and the stamping roller, and the second color mark electric eye is fixed on the mounting frame and corresponds to the gold stamping film;

[0014] The winding device, the first conveying member, the supporting roller, the base material conveying assembly, the glue spraying device, the tension sensor, the first color mark electric eye and the second color mark electric eye are electrically connected with the electric control device respectively.

[0015] The cold stamping equipment with the improved structure is provided with the tension sensor, the first color mark electric eye and the second color mark electric eye, the first color mark electric eye can detect the corresponding position on the base material and feed back the position signal to the electric control device, the second color mark electric eye can detect the corresponding position on the gold stamping film and feed back the position signal to the electric control device, and the tension sensor detects the tension value of the gold stamping film before stamping, so that the electric control device can control the speed of the first conveying member according to the position signal and the tension value, that is, the adjustment of the tension of the gold stamping film before stamping is realized, the gold stamping film can correspond to the pattern to be printed on the base material in subsequent secondary stamping or even multiple stamping, and the normal use of the secondary stamping or even multiple stamping is ensured.

[0016] The purpose of the utility model can also be solved by the following technical measures:

[0017] Specific further, still include fixed seat, fixed seat includes the upper bearing section and the lower connecting section connected, the lower connecting section is connected on the installation frame, the upper bearing section is located on the side of the tension sensor, the second color mark electric eye is fixedly connected on the upper bearing section, the upper bearing section of the fixed seat provides the installation carrier for the second color mark electric eye, and the stable installation of the second color mark electric eye on the installation frame is realized through the lower connecting section of the fixed seat, and the installation is relatively simple and the installation effect is good, and simultaneously, the upper bearing section is located on the side of the tension sensor, and the corresponding position of the gold stamping film through the tension sensor is also convenient for the second color mark electric eye to detect.

[0018] Specific further, still include UV curing lamp, the installation frame is provided with the fixing frame and the fixing frame is located on the side of the support roller, the through hole is opened in the fixing frame, the UV curing lamp is fixed in the through hole, and the side of the UV curing lamp is close to the support roller, to make the UV curing lamp irradiate the bottom material and the gold stamping film after gilding stamping compound, the gilding stamping foil on the bottom material can be firmly connected on the to-be-printed pattern of the bottom material, and in addition, the through hole of the fixing frame provides the installation space for the UV curing lamp, and the irradiation range of the UV curing lamp is limited, to make the UV curing lamp stable irradiation the specified position on the support roller.

[0019] Specific further, the bottom material conveying assembly includes the driving conveying roller and a plurality of driven conveying rollers, the first color mark electric eye is located on the side of one of the driven conveying rollers, and the driving motor is connected on the side of the driving conveying roller and is electrically connected with the electric control device, the bottom material conveying assembly only needs to be provided with the driving conveying roller and a plurality of driven conveying rollers, and the position transmission of the bottom material on the installation frame can be realized, the structure is simple, and the transmission effect is good, and in addition, the first color mark electric eye is located on the side of one of the driven conveying rollers, and the corresponding position of the bottom material through the driven conveying roller is also convenient for the first color mark electric eye to detect.

[0020] Specific further, the installation frame is also provided with the digital nozzle, and the digital nozzle is close to a plurality of driven conveying rollers, along the direction of the bottom material, the first color mark electric eye, the digital nozzle and the gilding stamping assembly are sequentially arranged, and the digital nozzle constitutes the glue spraying device, the digital nozzle can spray glue on the corresponding position of the bottom material on a plurality of driven conveying rollers according to the signal transmitted by the first color mark electric eye.

[0021] Specific further, the third conveying roller is arranged between the gilding stamping assembly and the bottom material conveying roller, the bottom material conveying roller is located on the side of the third conveying roller, and the gold stamping film conveying roller is located above the third conveying roller, so that the gold stamping film after gilding stamping passes through the third conveying roller and is recycled to the winding device through the gold stamping film conveying roller, the bottom material passes through the third conveying roller and is conveyed to the corresponding position through the bottom material conveying roller, and the separation of the bottom material and the gold stamping film after gilding stamping is realized.

[0022] The beneficial effects of the utility model are as follows:

[0023] (1) This cold foil stamping equipment has an improved structure. By adding a tension sensor, a first color mark photocell and a second color mark photocell, the first color mark photocell can detect the corresponding position on the base material and feed the position signal back to the electronic control device. The second color mark photocell can detect the corresponding position on the hot foil stamping film and feed the position signal back to the electronic control device. The tension sensor detects the tension value of the hot foil stamping film before hot foil stamping. Then, the electronic control device can adjust the speed of the first conveyor according to the above position signal and tension value. That is, the tension of the hot foil stamping film before hot foil stamping is adjusted so that the hot foil stamping film can correspond to the pattern to be printed on the base material during subsequent secondary hot foil stamping and even multiple hot foil stamping, ensuring the normal use of secondary hot foil stamping and even multiple hot foil stamping.

[0024] (2) The upper support section of the fixed base provides a mounting carrier for the second color mark photoelectric sensor, and the lower connecting section of the fixed base enables the second color mark photoelectric sensor to be stably installed on the mounting frame. It is relatively easy to install and has a good installation effect. At the same time, the upper support section is located on one side of the tension sensor, which also makes it easy for the second color mark photoelectric sensor to detect the corresponding position of the hot stamping film passing through the tension sensor.

[0025] (3) The hot stamping foil printed on the base material can be firmly attached to the pattern to be printed on the base material. Furthermore, the through hole of the fixing frame provides installation space for the UV curing lamp and also limits the irradiation range of the UV curing lamp so that the UV curing lamp can stably irradiate the designated position on the support roller. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the improved structure of the cold ironing equipment of this utility model.

[0027] Figure 2 This is a perspective view of the improved structure of the cold ironing equipment of this utility model.

[0028] Figure 3 for Figure 2 Enlarged view of point A.

[0029] Figure 4 for Figure 2 Another perspective diagram. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0031] Implementation examples, in conjunction with Figures 1 to 4 As shown, an improved structure for a cold ironing equipment includes an installation frame 1, on which an unwinding device 2, a rewinding device 3, a first conveyor 4, a hot stamping assembly 5, a second conveyor 6, a base material conveying assembly 7, a glue spraying device 8, and an electrical control device are provided. The feature is that it also includes a tension sensor 9, a first color mark photocell 10, and a second color mark photocell 20.

[0032] The second conveying assembly 6 comprises a gold foil conveying roller 61 and a base material conveying roller 62,

[0033] The unwinding device 2, the winding device 3, the stamping assembly 5, the first conveying member 4 and the gold foil conveying roller 61 work cooperatively to convey the gold foil, one end of the gold foil placed on the unwinding device 2 passes through the first conveying member 4, the stamping assembly 5 and the gold foil conveying roller 61 in sequence and is then recycled to the winding device 3;

[0034] The base material conveying assembly 7 is used to convey the base material through the stamping assembly 5, the base material passing through the stamping assembly 5 is continuously conveyed to the corresponding position by the base material conveying roller 62, and the glue spraying device 8 sprays glue to the pattern position to be printed on the base material;

[0035] The stamping assembly 5 comprises a stamping roller 51 and a supporting roller 52 rotating synchronously, and the base material and the gold foil pass through the stamping roller 51 and the supporting roller 52 in close contact to transfer the stamping foil on the gold foil to the pattern to be printed on the base material;

[0036] The first color mark electric eye 10 is fixed on the mounting frame 1 and corresponds to the base material;

[0037] The tension sensor 9 is arranged between the first conveying member 4 and the stamping roller 51, and the second color mark electric eye 20 is fixed on the mounting frame 1 and corresponds to the gold foil;

[0038] The winding device 3, the first conveying member 4, the supporting roller 52, the base material conveying assembly 7, the glue spraying device 8, the tension sensor 9, the first color mark electric eye 10 and the second color mark electric eye 20 are respectively electrically connected with the electric control device; the electric control device can be a common microcomputer, which has a control system built-in and is not shown.

[0039] As a specific scheme, a fixed seat 30 is further included, the fixed seat 30 comprises an upper supporting section 301 and a lower connecting section 302 connected with each other, the lower connecting section 302 is connected to the mounting frame 1, the upper supporting section 301 is located on one side of the tension sensor 9, and the second color mark electric eye 20 is fixedly connected to the upper supporting section 301.

[0040] As a more specific scheme, a UV curing lamp 53 is further included, a fixed frame 11 is arranged on the mounting frame 1 and located on one side of the supporting roller 52, a through hole 12 is formed in the fixed frame 11, the UV curing lamp 53 is fixed in the through hole 12 and located on one side close to the supporting roller 52, so that the UV curing lamp 53 irradiates the base material and the gold foil after stamping and transferring.

[0041] As a more specific scheme, the base material conveying assembly 7 comprises a driving conveying roller 71 and a plurality of driven conveying rollers 72, the first color mark electric eye 10 is located on one side of one of the driven conveying rollers 72, and the driving conveying roller 71 is connected with a driving motor 100 on one side, and the driving motor 100 is electrically connected with the electric control device.

[0042] In the embodiment, a digital nozzle is further arranged on the mounting frame 1 and is close to the driven conveying rollers 72, and in the base material running direction, the first color mark electric eye 10, the digital nozzle and the hot stamping assembly 5 are arranged in the order of sequence, and the digital nozzle constitutes the glue spraying device 8.

[0043] As a more specific scheme, the unwinding device 2 is an unwinding roller, the winding device 3 is a winding roller, the first conveying member 4 is a first conveying roller, and the winding roller, the first conveying roller and the supporting roller 52 are all connected with a driving motor 100, and the driving motor 100 is electrically connected with the electric control device.

[0044] As a better embodiment, a third conveying roller 63 is further arranged between the hot stamping assembly 5 and the base material conveying roller 62, the base material conveying roller 62 is located on one side of the third conveying roller 63, and the gold stamping film conveying roller 61 is located above the third conveying roller 63.

[0045] The base material of the gold stamping film is a pet polyester film, which will be greatly stretched when receiving a large tension (such as 180N), and will shrink when being wound up with a small tension (such as 100N) after stretching.

[0046] The tension sensor 9 can be a SA cantilever tension sensor produced by Huizhou Aibo Intelligent Control Equipment Co., Ltd., www.aiboauto.com, model SA-020-000106.

[0047] A control method for improving the structure of the cold stamping equipment, characterized by comprising the following steps:

[0048] S1, starting preparation, one end of the gold stamping film is pulled out from the unwinding device 2, sequentially passes through the first conveying member 4, the tension sensor 9, the abutting hot stamping roller 51 and the supporting roller 52, and is fixed on the winding device 3 after the gold stamping film conveying roller 61 to be wound, the tension sensor 9 detects the tension of the gold stamping film in real time and feeds back the initial tension value to the control system of the electric control device; one end of the base material on one outer side of the mounting frame 1 passes through the abutting hot stamping roller 51 and the supporting roller 52 through the base material conveying assembly 7, and then continues to be transmitted to the other outer side of the mounting frame 1 through the base material conveying roller 62;

[0049] S2, first hot stamping, the electric control device controls the corresponding components to start working, the base material is conveyed by the base material conveying assembly 7, and then enters the hot stamping assembly 5 to cooperate with the gold stamping film after passing through the first color mark electric eye 10 and the glue spraying device 8, in this process, the first color mark electric eye 10 detects the position of the to-be-printed pattern on the base material and sends a corresponding signal to the control system, so that the control system controls the glue spraying device 8 to spray glue onto the to-be-printed pattern on the base material;

[0050] A larger tension value is input to the control system, and the control system calculates the tension difference according to the tension value and the initial tension value, and then controls the speed of the first conveying member 4 according to the tension difference, so that the speed difference between the first conveying member 4 and the hot stamping roller 51 becomes larger, that is, the tension on the gold stamping film before entering the hot stamping assembly 5 becomes larger, and then the gold stamping film is stretched by a larger amplitude;

[0051] When the gold stamping film enters the hot stamping assembly 5, the hot stamping tin part of the gold stamping film contacting the glue will be transferred to the to-be-printed pattern on the base material, and the gold stamping film after passing through the hot stamping assembly 5 is fixed on the winding device 3 through the gold stamping film conveying roller 61, in this process, because the torque of the winding device 3 is small, the tension on the gold stamping film after passing through the hot stamping assembly 5 becomes smaller, the gold stamping film will shrink because of the large amplitude of stretching before, and then the distance between the adjacent two used hot stamping foil patterns on the gold stamping film will be reduced, which will be smaller than the distance of the to-be-printed pattern on the base material; the winding device 3 is a winding roller, so the torque of the winding device 3 is controlled by the driving motor 100, and the torque of the winding device 3 is actually the torque of the driving motor 100.

[0052] S3, second hot stamping, the gold stamping film on the winding device 3 is placed on the unwinding device 2 again for secondary hot stamping, in the secondary hot stamping process, the control system of the electric control device detects the distance between the adjacent two used hot stamping foil patterns on the gold stamping film in real time according to the second color mark electric eye 20, and the distance of the to-be-printed pattern on the base material is detected by the first color mark electric eye 10, and then the control system calculates the error between the two, and at the same time, the initial tension value detected by the tension sensor 9 is used, the electric control device calculates the tension amount to be compensated according to the above error and the initial tension value, controls the speed difference between the first conveying member 4 and the hot stamping roller 51 according to the tension amount to be compensated, and then controls the speed of the first conveying member 4, so that the distance between the adjacent two used hot stamping foil patterns on the gold stamping film is equal to the distance of the to-be-printed pattern on the base material, ensuring that the positions of the two entering the hot stamping assembly 5 for hot stamping are corresponding, and ensuring the stable use of the secondary hot stamping; the principle of three times or even multiple times of the gold stamping film is the same.

[0053] As a more specific solution, in the above-mentioned S2 and S3 steps, the speed of the supporting roller 52 is kept constant, so that the speed of the stamping roller 51 rotating synchronously with the supporting roller 52 is kept constant, which is beneficial to keeping the stamping speed between the stamping roller 51 and the supporting roller 52 constant, and guarantees the stamping effect. On the other hand, since the speed of the stamping roller 51 is constant, it is only necessary to adjust the speed of the first conveying member 4 to realize the adjustment of the tension of the gold stamping film between the first conveying member 4 and the stamping roller 51.

[0054] More specifically, in the first-time stamping, the gold stamping film is conveyed with a large tension (for example, 180 N) before entering the stamping assembly, and the gold stamping film after passing through the stamping assembly is wound up with a small tension (for example, 100 N). Since the gold stamping film is full of stamping tin, a large degree of stretching adjustment of the gold stamping film will not affect the position correspondence between the gold stamping film and the to-be-printed pattern on the base material.

[0055] In the second-time stamping, the gold stamping film is first conveyed with a general tension (for example, 150 N), and the control system of the electric control device detects the distance between the adjacent two used stamping tin patterns (i.e., the pattern without stamping tin) on the gold stamping film and the distance of the to-be-printed pattern on the base material in real time according to the second color mark electric eye 20 and the first color mark electric eye 10. If the pattern without stamping tin on the gold stamping film moves in the winding direction, the control system adjusts the tension to a small tension (for example, 100 N, which requires increasing the speed of the first conveying member 4) so that the pattern without stamping tin on the gold stamping film moves in the unwinding direction and corresponds to the to-be-printed pattern on the base material. Conversely, if the pattern without stamping tin on the gold stamping film moves in the unwinding direction, the control system adjusts the tension to a large tension (for example, 180 N, which requires decreasing the speed of the first conveying member 4) so that the pattern without stamping tin on the gold stamping film moves in the winding direction and corresponds to the to-be-printed pattern on the base material. If the position corresponds, the gold stamping film is continuously conveyed with the general tension (for example, 150 N) before entering the stamping assembly to perform corresponding work.

[0056] As another control method of the cold stamping equipment, it is similar to the control method of the above-mentioned embodiment one, except that in the S2 step, during the first-time stamping, the gold stamping film is subjected to the same tension in the conveying process before stamping and the conveying and winding process after stamping, and the tension is a general tension, and the first-time stamping is completed. Before the second-time stamping, the gold stamping film is placed on the unwinding device 2 again, so that one end of the gold stamping film passes through the first conveying member 4, the stamping assembly 5, and the gold stamping film conveying roller 61 in turn and is recovered to the winding device 3, and in this process, the base material does not participate in the conveying. The gold stamping film is conveyed with a large tension before entering the stamping assembly 5, and the gold stamping film after passing through the stamping assembly 5 is recovered to the winding device 3 with a small tension. This method can also well realize the contraction effect of the gold stamping film before the second-time stamping, and provide adjustment space for the second-time stamping.

Claims

1. An improved structure for a cold ironing equipment, comprising a mounting frame (1), wherein the mounting frame (1) is provided with an unwinding device (2), a rewinding device (3), a first conveyor (4), a hot stamping assembly (5), a second conveyor assembly (6), a base material conveying assembly (7), a glue spraying device (8), and an electrical control device, characterized in that, Further comprising a tension sensor (9), a first color mark electric eye (10) and a second color mark electric eye (20); The second conveying assembly (6) comprises a gold stamping film conveying roller (61) and a base material conveying roller (62), The unwinding device (2), the winding device (3), the stamping assembly (5), the first conveying member (4) and the gold stamping film conveying roller (61) are cooperated to convey the gold stamping film, one end of the gold stamping film placed on the unwinding device (2) passes through the first conveying member (4), the stamping assembly (5) and the gold stamping film conveying roller (61) in sequence and is recycled to the winding device (3); The base material conveying assembly (7) is used to convey the base material through the stamping assembly (5), the base material passing through the stamping assembly (5) is continuously conveyed to the corresponding position by the base material conveying roller (62), and the glue spraying device (8) sprays glue to the pattern to be printed position of the base material; The stamping assembly (5) comprises a stamping roller (51) and a supporting roller (52) rotating synchronously, and the base material and the gold stamping film pass through between the stamping roller (51) and the supporting roller (52) in close contact, so that the stamping foil on the gold stamping film is transferred to the pattern to be printed of the base material; The first color mark electric eye (10) is fixed on the mounting frame (1) and corresponds to the base material; The tension sensor (9) is arranged between the first conveying member (4) and the stamping roller (51), and the second color mark electric eye (20) is fixed on the mounting frame (1) and corresponds to the gold stamping film; The winding device (3), the first conveying member (4), the supporting roller (52), the base material conveying assembly (7), the glue spraying device (8), the tension sensor (9), the first color mark electric eye (10) and the second color mark electric eye (20) are respectively electrically connected with the electric control device.

2. The cold-pinking apparatus improvement structure according to claim 1, wherein Further comprising a fixing seat (30), the fixing seat (30) comprises an upper supporting section (301) and a lower connecting section (302) connected with each other, the lower connecting section (302) is connected to the mounting frame (1), and the upper supporting section (301) is located on one side of the tension sensor (9), and the second color mark electric eye (20) is fixedly connected to the upper supporting section (301).

3. The cold-pinking apparatus improvement structure according to claim 1, wherein Further comprising a UV curing lamp (53), the mounting frame (1) is provided with a fixing frame (11) located on one side of the supporting roller (52), the fixing frame (11) is provided with a through hole (12), the UV curing lamp (53) is fixed in the through hole (12) and located on one side of the supporting roller (52), so that the UV curing lamp (53) irradiates the base material and the gold stamping film after stamping and compounding.

4. The cold-pinking apparatus improvement structure according to claim 1, wherein The base material conveying assembly (7) comprises a driving conveying roller (71) and a plurality of driven conveying rollers (72), the first color mark electric eye (10) is located on one side of one of the driven conveying rollers (72), and a driving motor (100) is connected to one side of the driving conveying roller (71) and electrically connected with the electric control device.

5. The cold-pinking apparatus improvement structure according to claim 4, wherein The installation frame (1) is further provided with a digital nozzle, and the digital nozzle is close to a plurality of driven conveying rollers (72). In the direction of the bottom material running, the first color mark electric eye (10), the digital nozzle and the hot stamping assembly (5) are sequentially arranged, and the digital nozzle constitutes the glue spraying device (8).

6. The cold-pinking apparatus improvement structure according to claim 1, wherein The hot stamping assembly (5) and the bottom material conveying roller (62) are further provided with a third conveying roller (63), the bottom material conveying roller (62) is located on one side of the third conveying roller (63), and the gold stamping film conveying roller (61) is located above the third conveying roller (63).

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