Heat dissipation device for hot stamping machine

Abstract

The present application relates to a heat dissipation device for a hot stamping machine, which belongs to the technical field of hot stamping machines, and includes a base, a hot stamping plate and a printing table. The hot stamping plate is slidably arranged on the base, the printing table is fixedly arranged on the base and is located below the hot stamping plate, the substrate is placed on the printing table, the hot stamping plate is used to stamp the electrochemical aluminum foil onto the surface of the substrate, the printing table and the hot stamping plate are both hollow, a vortex tube is arranged on one side of the printing table, the cold end of the vortex tube is connected to the inside of the printing table, the hot end of the vortex tube is connected to the hot stamping plate, the inlet end of the vortex tube is connected to a compressed gas supply device, the compressed gas supply device passes compressed air into the vortex tube, the air through the cold end of the vortex tube enters the printing table to cool the printing table, the air through the hot end of the vortex tube enters the hot stamping plate to heat the hot stamping plate, the heat dissipation device also includes a compression tank, and the gas discharged from the printing table and the hot stamping plate is collected and passed into the compression tank and compressed. The present application has the effect of facilitating the cooling of the printing table.

Description

Technical Field

[0001] The present application relates to the technical field of hot stamping machines, and in particular to a heat dissipation device for hot stamping machines. Background Art

[0002] Hot stamping refers to the process of hot stamping anodized aluminum foil onto the surface of a substrate under a certain temperature and pressure. A hot stamping machine is a machine used for hot stamping. The hot stamping process mainly uses the principle of heat transfer. Under the combined pressure, the anodized aluminum contacts the hot stamping plate and the substrate. As the heating of the electric heating plate causes the hot stamping plate to have a certain amount of heat, the anodized aluminum is heated to melt the hot-melt dyeing resin layer and the adhesive solvent, the adhesion of the dyeing resin layer decreases, and the viscosity of the special heat-sensitive adhesive increases after melting. The aluminum layer is transferred to the substrate while peeling off the anodized aluminum base film. After the heating is stopped, the adhesive quickly cools and solidifies, and the aluminum layer is firmly attached to the substrate, completing the hot stamping work.

[0003] At present, a patent document with authorization announcement number CN214563786U discloses an automatic hot stamping machine, including a base, a printing table, a support column, a hydraulic device and a hot stamping plate. The printing table is arranged at the upper end of the base, the support column is arranged at the upper edge of the base, one end of the hydraulic device is fixedly connected to the top of the support column, and the other end is fixedly connected to the hot stamping plate. One side of the base is a feeding end, and the other side is a discharging end. A feeding mechanism is provided on the feeding end, and a discharging mechanism is provided on the discharging end. The feeding mechanism includes a discharge box, a loading tray and a pusher. The loading tray can move up and down along the discharge box. The pusher is used to push the material from the discharge box into the hot stamping plate. The discharging mechanism includes a pushing plate and a receiving plate. The pushing plate can push the material on the receiving plate. Infrared probes are provided on the feeding mechanism and the discharging mechanism. The structure is simple, easy to use, high in working efficiency, high in automation level, and reduces the labor intensity of workers.

[0004] However, when the hot stamping machine is in use, the hot stamping plate of the hot stamping machine is continuously heated and pressed down to the printing table, which increases the temperature of the printing table. When the temperature is too high, it is not only easy to damage the surface of the substrate, affecting the hot stamping effect, but also shortening the service life of the printing table. Summary of the invention

[0005] In order to facilitate cooling of the printing table, the present application provides a heat dissipation device for a hot stamping machine.

[0006] The heat dissipation device of a hot stamping machine provided in this application adopts the following technical solution:

[0007] A heat dissipation device for a hot stamping machine comprises a base, a hot stamping plate and a printing table, wherein the hot stamping plate is slidably arranged on the base, the printing table is fixedly arranged on the base and is located below the hot stamping plate, a substrate is placed on the printing table, the hot stamping plate is used for hot stamping an electrochemical aluminum foil onto the surface of the substrate, the printing table and the hot stamping plate are both hollow, a vortex tube is arranged on one side of the printing table, a cold end of the vortex tube is connected to the inside of the printing table, a hot end of the vortex tube is connected to the hot stamping plate, an inlet end of the vortex tube is connected to a compressed gas supply device, the compressed gas supply device passes compressed air into the vortex tube, air passing through the cold end of the vortex tube enters the printing table to cool the printing table, and air passing through the hot end of the vortex tube enters the hot stamping plate to heat the hot stamping plate, the heat dissipation device also comprises a compression tank, and the gas discharged from the printing table and the hot stamping plate is collected and passed into the compression tank for compression.

[0008] Optionally, a turbofan is rotatably provided on the bottom wall of the inner cavity of the printing table, and the turbofan is located directly below the substrate, with the air outlet end of the turbofan facing the top wall of the inner cavity; a driving fan blade is coaxially provided on the turbofan mounting shaft, and the driving fan blade is located below the turbofan, and the compressed air entering the cavity from the cold end of the vortex tube impacts the driving fan blade to drive the turbofan to rotate, so as to blow the compressed air to the top of the cavity.

[0009] Optionally, the hot stamping plate and the printing table are provided with air outlet holes on the side facing away from the vortex tube, and the hot stamping plate and the printing table are connected to the compression tank through an air duct arranged in the air outlet hole. A piston column for opening and closing the air outlet hole is slidably arranged in the air outlet hole, and the piston column slides along the axial direction of the air outlet hole. An air outlet channel is provided at the end of the piston column located in the cavity toward the side wall of the piston column. The piston column slides toward the air duct, so that the outlet of the air outlet channel enters the air duct to balance the air pressure in the cavity.

[0010] Optionally, a first spring is provided on the air outlet, the length direction of the first spring is parallel to the axial direction of the air outlet, the first spring is located between the cavity and the piston column, one end of the first spring is fixedly provided in the air outlet, and the other end is fixedly provided at the bottom of the piston column, and the first spring drives the piston column to have a movement tendency to slide toward the cavity.

[0011] Optionally, a receiving groove is provided on the receiving surface of the printing table, a receiving seat is provided on the printing table and in the receiving groove, the printing material is placed on the receiving seat, the receiving seat and the peripheral wall of the receiving groove are in a separated state, antifreeze is provided in the receiving groove, the peripheral wall of the receiving seat is immersed in the antifreeze and the liquid level of the antifreeze is lower than the top surface of the receiving seat, and the buoyancy exerted by the antifreeze on the receiving seat is less than the gravity of the receiving seat.

[0012] Optionally, a plurality of positioning rods are provided on the peripheral wall of the receiving seat, and the length direction of the positioning rods is perpendicular to the side wall, and the ends of the positioning rods abut against the inner wall of the receiving groove; a shielding plate is provided on the side wall of the receiving seat and close to the top wall, and a shielding groove for the shielding plate to be engaged is provided on the printing table, and after the shielding plate is engaged in the shielding groove, the gap between the receiving seat and the receiving groove is blocked.

[0013] Optionally, a purge pipe is provided on the receiving seat, a long strip groove is opened on the side of the purge pipe, a transition channel is opened at the axis of the purge pipe, the transition channel is connected with the long strip groove, a purge channel is opened in the direction of the substrate on the purge pipe, the purge channel is connected with the transition channel, and the heat dissipation device also includes a purge part, which is used to pass the hot air in the hot stamping plate into the purge pipe when the hot stamping plate is pressed down, and blow it toward the hot stamping plate, the substrate and the receiving seat through the purge channel.

[0014] Optionally, the purge component includes a plug-in slot on the hot stamping plate for the purge pipe to be plugged in, a connecting channel is provided between the plug-in slot and the cavity of the hot stamping plate, the purge component also includes a plugging head slidably arranged in the plug-in slot, the plugging head slides along the axial direction of the plug-in slot, the initial position of the plugging head is located at the opening of the connecting channel, and the connecting channel is blocked, and after the purge pipe is plugged into the plug-in slot, the plugging head is pushed to slide toward the bottom wall of the plug-in slot, and the connecting channel is opened, and the hot air in the hot stamping plate enters the long strip groove and the transition channel through the connecting channel, and is discharged through the purge channel.

[0015] Optionally, a second spring is provided on the hot stamping plate and in the plug-in slot, the second spring is located between the bottom of the plug-in slot and the plugging head, one end of the second spring is fixedly provided on the bottom wall of the plug-in slot, and the other end is fixedly provided on the bottom of the plugging head, the second spring drives the plugging head to have a sliding movement tendency toward and away from the bottom wall of the plug-in slot.

[0016] Optionally, three purge channels are provided, one of which is provided in a horizontal direction to purge the substrate, and the other two purge channels are symmetrically arranged in the horizontal direction and face the hot stamping plate and the receiving seat respectively.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] When hot stamping a substrate, the substrate is placed on the printing table, the electroplated aluminum foil is placed on the substrate, the hot stamping plate is moved down and pressed on the electroplated aluminum foil and the electroplated aluminum foil is pressed on the substrate, thereby completing the hot stamping operation; while the substrate is hot stamping, the compressed gas supply device passes the compressed gas into the vortex tube, the compressed gas rotates at high speed in the vortex tube and flows along the vortex tube, and the compressed gas enters the cavity in the printing table through the cold end of the vortex tube, dissipates heat and cools the printing table, thereby reducing the possibility of damage to the substrate and the printing table;

[0019] During the hot stamping process, the heat of the hot stamping plate is transferred to the substrate and the printed material, and the temperature of the hot stamping plate decreases. If the hot stamping plate is to maintain the set temperature, the power needs to be increased to maintain the temperature of the hot stamping plate, resulting in a large consumption of electric energy. At this time, the compressed gas flowing out from the hot end of the vortex tube enters the cavity of the hot stamping plate. The compressed gas carries heat and transfers it to the hot stamping plate to maintain the temperature of the hot stamping plate, thereby reducing the electric energy consumed to maintain the temperature of the hot stamping plate.

[0020] After the compressed gas passes through the vortex tube to cool down the printing table and heat the hot stamping plate, the compressed gas is collected and passed into the compression tank. After the compressed gas is compressed again, it can be used as a compressed gas supply device to recycle the compressed gas, reducing the practical cost of the hot stamping machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a heat dissipation device for a hot stamping machine according to an embodiment of the present application;

[0022] Figure 2 It is a cross-sectional view of a hot stamping plate and a printing table in a heat dissipation device of a hot stamping machine according to an embodiment of the present application;

[0023] Figure 3 It is a cross-sectional view of a receiving seat in a heat dissipation device of a hot stamping machine according to an embodiment of the present application;

[0024] Figure 4 It is a structural schematic diagram of a hot stamping plate and a printing platform in a heat dissipation device of a hot stamping machine according to an embodiment of the present application;

[0025] Figure 5 yes Figure 3 A magnified schematic diagram of part A;

[0026] Figure 6 yes Figure 4 A magnified schematic diagram of part B;

[0027] Figure 7 yes Figure 2 A magnified schematic diagram of part C;

[0028] Figure 8 yes Figure 4 Enlarged schematic diagram of part D in the figure.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. base; 2. hot stamping plate; 3. printing table; 4. vortex tube; 5. compressed gas supply device; 6. compression tank; 7. cavity; 8. turbofan; 9. driving blades; 10. air outlet; 11. piston column; 12. air outlet channel; 13. first spring; 14. receiving groove; 15. receiving seat; 16. positioning rod; 17. shielding plate; 18. shielding groove; 19. purge tube; 20. long strip groove; 21. transition channel; 22. purge channel; 23. plugging slot; 24. connecting channel; 25. plugging head; 26. second spring. DETAILED DESCRIPTION

[0030] The following combination Figure 1-Figure 8 This application is described in further detail.

[0031] The present application embodiment discloses a heat dissipation device for a hot stamping machine. Figure 1 The heat dissipation device of the hot stamping machine includes a base 1, a hot stamping plate 2 and a printing table 3. The hot stamping plate 2 is slidably arranged on the base 1, and the printing table 3 is fixedly arranged on the base 1 and located below the hot stamping plate 2. The substrate is placed on the printing table 3, and the hot stamping plate 2 is used to hot stamp the electrochemical aluminum foil onto the surface of the substrate;

[0032] Reference Figure 2 The printing table 3 and the hot stamping plate 2 are both hollow. A vortex tube 4 is arranged on one side of the printing table 3. The cold end of the vortex tube 4 is connected to the inside of the printing table 3, and the hot end of the vortex tube 4 is connected to the hot stamping plate 2. The inlet end of the vortex tube 4 is connected to the compressed gas supply device 5 (compressed gas storage cylinder). The compressed gas supply device 5 passes compressed air into the vortex tube 4. The air from the cold end of the vortex tube 4 enters the printing table 3 to cool the printing table 3. The air from the hot end of the vortex tube 4 enters the hot stamping plate 2 to heat the hot stamping plate 2. When hot stamping the substrate, the substrate is placed on the printing table 3, the electrochemical aluminum foil is placed above the substrate, and the hot stamping plate 2 is moved down and pressed onto the electrochemical aluminum foil. The electrochemical aluminum foil is placed above the foil and pressed onto the substrate, thereby completing the hot stamping operation; when the substrate is hot stamped, the compressed gas supply device 5 passes the compressed gas into the vortex tube 4, and the compressed gas rotates at a high speed in the vortex tube 4 and flows along the vortex tube 4. The compressed gas enters the cavity 7 in the printing table 3 through the cold end of the vortex tube 4, dissipates heat and cools the printing table 3, thereby reducing the possibility of damage to the substrate and the printing table 3; the compressed gas flowing out from the hot end of the vortex tube 4 enters the cavity 7 of the hot stamping plate 2, and the compressed gas carries heat and transfers it to the hot stamping plate 2 to maintain the temperature of the hot stamping plate 2, thereby reducing the electrical energy consumed in maintaining the temperature of the hot stamping plate 2.

[0033] Reference Figure 2 and Figure 3In order to facilitate the reuse of compressed gas, the heat dissipation device also includes a compression tank 6. The gas exhausted from the printing table 3 and the hot stamping plate 2 is collected and introduced into the compression tank 6 for compression. After the compressed gas passes through the vortex tube 4 to cool the printing table 3 and heat the hot stamping plate 2, the compressed gas is collected and introduced into the compression tank 6. After the compressed gas is compressed again, it can be used as a compressed gas supply device to circulate the compressed gas, thereby reducing the practical cost of the hot stamping machine.

[0034] Reference Figure 3 and Figure 4 In the embodiment of the present application, after the cold-end compressed gas enters the cavity 7 of the printing table 3, the weight of the compressed air is greater than the weight of the air, resulting in the cold-end compressed air being located at the bottom of the cavity 7, and it is difficult to cool the receiving surface of the printing table 3. Therefore, in order to improve the cooling effect of the cold-end compressed air on the printing table 3, a turbofan 8 is rotatably provided on the bottom wall of the inner cavity of the printing table 3. The turbofan 8 is located directly below the substrate, and the air outlet of the turbofan 8 faces the top wall of the inner cavity;

[0035] Reference Figure 3 and Figure 4 The turbofan 8 mounting shaft is coaxially provided with a driving blade 9, which is located below the turbofan 8. The connecting end of the vortex tube 4 and the printing table 3 faces the driving blade 9. The compressed air entering the cavity 7 from the cold end of the vortex tube 4 impacts the driving blade 9 and drives the turbofan 8 to rotate, so as to blow the compressed air to the top of the cavity 7. After the compressed air at the cold end enters the cavity 7, the compressed air has a certain initial velocity. The compressed air impacts the driving blade 9, driving the driving blade 9 to rotate. The driving blade 9 rotates and drives the turbofan 8 to rotate. The rotation of the turbofan 8 blows the compressed gas toward the top of the cavity 7 to cool the receiving surface of the printing table 3, thereby improving the cooling effect of the printing table 3.

[0036] Reference Figure 3 and Figure 5 In order to prolong the residence time of the compressed gas in the cavity 7 and improve the cooling effect and the heating effect of the hot stamping plate 2, in the embodiment of the present application, the hot stamping plate 2 and the printing platform 3 are both provided with an air outlet 10 on the side away from the vortex tube 4. Under the action of the air outlet 10, it is convenient for the gas in the cavity 7 to be discharged and the compressed gas to enter the cavity 7. The hot stamping plate 2 and the printing platform 3 are both connected to the compression tank 6 through the air duct arranged in the air outlet 10. Figure 4 and Figure 6 A piston column 11 for opening and closing the air outlet 10 is slidably provided in the air outlet 10, and the piston column 11 slides along the axial direction of the air outlet 10. An air outlet channel 12 is opened on the side wall of the piston column 11 at the end of the piston column 11 located in the cavity 7. The piston column 11 slides toward the air duct, so that the outlet of the air outlet channel 12 enters the air duct to balance the air pressure in the cavity 7.

[0037] The vortex tube 4 conveys the compressed gas into the cavity 7, and the air pressure in the cavity 7 gradually increases. When the thrust exerted by the air pressure on the piston column 11 is greater than the friction between the piston column 11 and the air outlet 10, the air pressure pushes the piston column 11 to slide toward the outside of the cavity 7. When the outlet of the air outlet channel 12 moves out of the air outlet, the compressed gas in the cavity 7 is discharged through the air outlet channel 12, which facilitates the compressed gas to pass into the cavity 7; and under the action of the piston column 11, the air outlet 10 is closed, and the residence time of the compressed gas in the cavity 7 is prolonged, thereby improving the heating effect on the hot stamping plate 2 and the cooling effect on the printing table 3; at the same time, the compressed gas in the cavity 7 is discharged at intervals, which reduces the consumption of compressed gas as a whole and reduces the use cost of the hot stamping machine.

[0038] Reference Figure 4 and Figure 6 In order to facilitate the piston column 11 to block the air outlet 10, a first spring 13 is provided on the air outlet 10. In the embodiment of the present application, the length direction of the first spring 13 is parallel to the axial direction of the air outlet 10. The first spring 13 is located between the cavity 7 and the piston column 11. One end of the first spring 13 is fixedly arranged on the folding plate, and the other end is fixedly arranged at the bottom of the piston column 11. The first spring 13 drives the piston column 11 to have a movement tendency to slide toward the cavity 7; after the piston column 11 moves toward the outside under the action of air pressure to open the air outlet channel 12, at this time, the first spring 13 is in a stretched state. As the air pressure in the cavity 7 decreases, the thrust applied by the air pressure on the piston column 11 is less than the pulling force of the first spring 13, and the first spring 13 pulls the piston column 11 back to the air outlet 10 to close the air outlet 10.

[0039] Reference Figure 2 and Figure 7In order to improve the cooling effect on the printing surface of the printing table 3, a receiving groove 14 is opened on the receiving surface of the printing table 3, and a receiving seat 15 is arranged on the printing table 3 and located in the receiving groove 14. The printing material is placed on the receiving seat 15, and the receiving seat 15 is separated from the peripheral wall of the receiving groove 14. Antifreeze is arranged in the receiving groove 14, and the peripheral wall of the receiving seat 15 is immersed in the antifreeze and the liquid level of the antifreeze is lower than the top surface of the receiving seat 15. The buoyancy exerted by the antifreeze on the receiving seat 15 is less than the gravity of the receiving seat 15; when the compressed air enters the cavity 7 to cool the printing table 3, the temperature of the printing table 3 drops. At this time, the temperature of the antifreeze The temperature of the receiving seat 15 is lowered because the receiving seat 15 is immersed in the antifreeze liquid all around, so the temperature of the surface of the receiving seat 15 drops more evenly, and the temperature at various places is roughly the same, thereby reducing the possibility of a high local temperature on the receiving surface and improving the cooling effect on the printing surface; at the same time, under the isolation effect of the antifreeze liquid, the temperature drop speed of the receiving seat 15 is more stable, and the possibility of an instantaneous and substantial drop in the temperature of the receiving seat 15 is reduced, thereby reducing the possibility of condensation of water vapor in the air on the receiving seat 15, thereby reducing damage to the substrate and improving the quality of the substrate.

[0040] Reference Figure 2 and Figure 7 In order to reduce the possibility of the receiving seat 15 shaking in the receiving groove 14, a plurality of positioning rods 16 are provided on the peripheral wall of the receiving seat 15. The length direction of the positioning rods 16 is perpendicular to the side wall, and the ends of the positioning rods 16 abut against the inner wall of the receiving groove 14. Under the action of the positioning rods 16, the receiving seat 15 is fixed in the receiving groove 14, and the possibility of the receiving seat 15 shaking is reduced, thereby improving the hot stamping effect on the substrate.

[0041] Reference Figure 2 and Figure 7 In order to extend the service life of the antifreeze, a shielding plate 17 is provided on the side wall of the receiving seat 15 and near the top wall, and a shielding groove 18 for the shielding plate 17 to be engaged is provided on the printing table 3. After the shielding plate 17 is engaged in the shielding groove 18, the gap between the receiving seat 15 and the receiving groove 14 is blocked; under the action of the shielding plate 17, the annular opening of the receiving groove 14 is closed, thereby reducing the possibility of the antifreeze being directly exposed to the air, thereby extending the service life of the antifreeze.

[0042] Reference Figure 4 and Figure 8During the hot stamping process, a large amount of waste gas will be generated during the production and use of the substrate because the working principle of hot stamping is high-temperature molding. The waste gas will not only threaten the health of the operators; and the metal foil will melt at high temperature and transfer to the surface of the substrate. In this process, some fine particles will be generated to form dust. In order to remove the waste gas and dust from the receiving seat 15 in time and reduce the impact on the operators, a purge pipe 19 is provided on the receiving seat 15. The purge pipe 19 is located on the printing surface of the receiving seat 15 and is perpendicular to the printing surface. The purge pipe A long strip groove 20 is opened on the side of 19, and the long strip groove 20 is opened along the length direction of the purge tube 19. A transition channel 21 is opened at the axis of the purge tube 19, and the transition channel 21 is connected with the long strip groove 20. A purge channel 22 is opened in the direction of the substrate in the purge tube 19, and the purge channel 22 is connected with the transition channel 21. The heat dissipation device also includes a purge member. The purge member is used to pass the hot air in the hot stamping plate 2 into the purge tube 19 when the hot stamping plate 2 is pressed down, and blow it toward the hot stamping plate 2, the substrate and the receiving seat 15 through the purge channel 22.

[0043] When the hot stamping plate 2 moves toward the receiving seat 15 and approaches the receiving seat 15, under the action of the purge member, the compressed air in the hot stamping plate 2 enters the long strip groove 20 of the purge pipe 19, and enters the purge channel 22 along the transition channel 21, and is then discharged from the purge channel 22, thereby purging the hot stamping plate 2, the receiving seat 15 and the printing material, making it easier to disperse the exhaust gas and dust from around the hot stamping plate 2, thereby reducing the impact on the operator.

[0044] Reference Figure 4 and Figure 8 The purge component includes a plug-in slot 23 provided on the hot stamping plate 2 for the purge tube 19 to be plugged in. A connecting passage 24 is provided between the plug-in slot 23 and the cavity 7 of the hot stamping plate 2. The purge component also includes a plugging head 25 slidably arranged in the plug-in slot 23. The plugging head 25 slides along the axial direction of the plug-in slot 23. The initial position of the plugging head 25 is located at the opening of the connecting passage 24, and the connecting passage 24 is blocked. After the purge tube 19 is plugged into the plug-in slot 23, the plugging head 25 is pushed to slide toward the bottom wall of the plug-in slot 23, and the connecting passage 24 is opened. The hot air in the hot stamping plate 2 enters the long strip slot 20 and the transition channel 21 through the connecting channel 24, and is discharged through the purge channel 22.

[0045] When the hot stamping plate 2 is hot stamping the substrate, the hot stamping plate 2 is close to the receiving seat 15, and the purge tube 19 is relatively plugged into the plug slot 23. After the purge tube 19 enters the plug slot 23, the purge tube 19 drives the plug head 25 to move toward the depth of the plug slot 23, and the connecting channel 24 is opened. After the connecting channel 24 is opened, the compressed air in the cavity 7 enters the long strip groove 20 from the connecting channel 24, and enters the purge channel 22 along the transition channel 21. At this time, the hot stamping plate 2 and the substrate are in a separated state, and the compressed air purges the surface of the hot stamping plate 2, and removes the dust remaining on the hot stamping plate 2, thereby reducing the possibility of the dust retained by the hot stamping plate 2 being hot stamped on the substrate, thereby improving the substrate Hot stamping quality; at the same time, because the purging compressed air comes from the cavity 7 of the hot stamping plate 2, the temperature of the compressed air is relatively high, thereby reducing the impact on the temperature of the hot stamping plate 2, and facilitating the maintenance of the temperature of the hot stamping plate 2, and facilitating the hot stamping operation; at the same time, after the hot stamping machine is started, the hot stamping plate 2 is first pressed down and close to the receiving seat 15, so that the compressed air purges the receiving seat 15 to remove impurities on the receiving seat 15, and appropriately heats the receiving seat 15 to eliminate condensed water on the receiving seat 15; when the hot stamping plate 2 is hot stamping the substrate, the air outlet of the purge channel 22 is located outside the plug-in slot 23, and the exhaust gas and dust generated during the hot stamping process are blown away by the compressed gas, thereby reducing the concentration of exhaust gas and dust, and reducing the impact on the operator.

[0046] Reference Figure 4 and Figure 8 In order to facilitate the return of the plugging head 25 to the initial position and block the connecting channel 24 when the hot stamping plate 2 moves back, a second spring 26 is arranged on the hot stamping plate 2 and in the plug-in slot 23. The second spring 26 is located between the bottom of the plug-in slot 23 and the plugging head 25. One end of the second spring 26 is fixedly arranged on the bottom wall of the plug-in slot 23, and the other end is fixedly arranged at the bottom of the plugging head 25. The second spring 26 drives the plugging head 25 to have a sliding movement tendency away from the bottom wall of the plug-in slot 23; when the purge tube 19 drives the plugging head 25 to move toward the deep inside of the plug-in slot 23, the second spring 26 is in a compressed state. When the hot stamping plate 2 returns, under the action of the thrust of the second spring 26, the plugging head 25 is driven to slide and close the connecting channel 24.

[0047] Reference Figure 4 and Figure 8 In the embodiment of the present application, three purge channels 22 are provided, one purge channel 22 is provided in the horizontal direction to purge the substrate, and the other two purge channels 22 are symmetrically arranged along the horizontal direction and face the hot stamping plate 2 and the receiving seat 15 respectively.

[0048] The implementation principle of a heat dissipation device for a hot stamping machine in the embodiment of the present application is as follows:

[0049] When hot stamping a substrate, the substrate is placed on the printing table 3, and the electroplated aluminum foil is placed above the substrate. The hot stamping plate 2 moves down and is pressed onto the electroplated aluminum foil and the electroplated aluminum foil is pressed onto the substrate, thereby completing the hot stamping operation. While the substrate is hot stamping, the compressed gas supply device 5 passes compressed gas into the vortex tube 4, and the compressed gas rotates at high speed in the vortex tube 4 and flows along the vortex tube 4. The compressed gas enters the cavity 7 in the printing table 3 through the cold end of the vortex tube 4, dissipates heat and cools the printing table 3, thereby reducing the possibility of damage to the substrate and the printing table 3. The compressed gas flowing out from the hot end of the vortex tube 4 enters the cavity 7 of the hot stamping plate 2. Because the compressed gas carries heat and transfers it to the hot stamping plate 2 to maintain the temperature of the hot stamping plate 2, the electric energy consumed to maintain the temperature of the hot stamping plate 2 is reduced.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heat dissipation device for a hot stamping machine, characterized in that: The printing platform (3) comprises a base (1), a hot stamping plate (2) and a printing table (3), wherein the hot stamping plate (2) is slidably arranged on the base (1), the printing table (3) is fixedly arranged on the base (1) and is located below the hot stamping plate (2), a substrate is placed on the printing table (3), the hot stamping plate (2) is used to hot stamp anodized aluminum foil onto the surface of the substrate, the printing table (3) and the hot stamping plate (2) are both hollow, a vortex tube (4) is arranged on one side of the printing table (3), the cold end of the vortex tube (4) is connected to the inside of the printing table (3), and the vortex tube (4) is connected to the inner side of the printing table (3). The hot end is connected to the hot stamping plate (2), the inlet end of the vortex tube (4) is connected to the compressed gas supply device (5), the compressed gas supply device (5) passes compressed air into the vortex tube (4), the air passes through the cold end of the vortex tube (4) into the printing table (3) to cool the printing table (3), and the air passes through the hot end of the vortex tube (4) into the hot stamping plate (2) to heat the hot stamping plate (2), the heat dissipation device also includes a compression tank (6), the gas discharged from the printing table (3) and the hot stamping plate (2) is collected and passed into the compression tank (6) for compression; The receiving surface of the printing platform (3) is provided with a receiving groove (14), a receiving seat (15) is provided on the printing platform (3) and located in the receiving groove (14), a substrate is placed on the receiving seat (15), the receiving seat (15) and the peripheral wall of the receiving groove (14) are in a separated state, antifreeze is provided in the receiving groove (14), the peripheral wall of the receiving seat (15) is immersed in the antifreeze and the liquid level of the antifreeze is lower than the top surface of the receiving seat (15), and the buoyancy exerted by the antifreeze on the receiving seat (15) is smaller than the weight of the receiving seat (15); The peripheral wall of the receiving seat (15) is provided with a plurality of positioning rods (16), the length direction of the positioning rods (16) is perpendicular to the side wall, and the end of the positioning rods (16) abuts against the inner wall of the receiving groove (14); a shielding plate (17) is provided on the side wall of the receiving seat (15) and close to the top wall, and a shielding groove (18) for the shielding plate (17) to be engaged is provided on the printing platform (3); after the shielding plate (17) is engaged in the shielding groove (18), the gap between the receiving seat (15) and the receiving groove (14) is blocked; The receiving seat (15) is provided with a purge pipe (19), the purge pipe (19) is provided with a long strip groove (20) on the side, a transition channel (21) is provided at the axis of the purge pipe (19), the transition channel (21) is connected with the long strip groove (20), the purge pipe (19) is provided with a purge channel (22) in the direction of the substrate, the purge channel (22) is connected with the transition channel (21), and the heat dissipation device also includes a purge member, the purge member is used to pass the hot air in the hot stamping plate (2) into the purge pipe (19) when the hot stamping plate (2) is pressed down, and blow the hot air toward the hot stamping plate (2), the substrate and the receiving seat (15) through the purge channel (22); The purge component includes a plug-in slot (23) provided on the hot stamping plate (2) for plugging the purge tube (19), a connecting passage (24) being provided between the plug-in slot (23) and the cavity (7) of the hot stamping plate (2), and the purge component also includes a plugging head (25) slidably arranged in the plug-in slot (23), the plugging head (25) sliding along the axial direction of the plug-in slot (23), the initial position of the plugging head (25) being located at the opening of the connecting passage (24), and the connecting passage (24) being blocked, and after the purge tube (19) is plugged into the plug-in slot (23), the plugging head (25) is pushed to slide toward the bottom wall of the plug-in slot (23), and the connecting passage (24) is opened, and the hot air in the hot stamping plate (2) enters the long strip slot (20) and the transition passage (21) through the connecting passage (24), and is discharged through the purge passage (22).

2. A heat dissipation device for a hot stamping machine according to claim 1, characterized in that: A turbofan (8) is rotatably arranged on the bottom wall of the inner cavity of the printing table (3), and the turbofan (8) is located directly below the printing material, with the air outlet end of the turbofan (8) facing the top wall of the inner cavity; a driving blade (9) is coaxially arranged on the mounting shaft of the turbofan (8), and the driving blade (9) is located below the turbofan (8); the compressed air entering the cavity (7) from the cold end of the vortex tube (4) impacts the driving blade (9), thereby driving the turbofan (8) to rotate, so as to blow the compressed air toward the top of the cavity (7).

3. The heat dissipation device for a hot stamping machine according to claim 1, characterized in that: The hot stamping plate (2) and the printing platform (3) are both provided with an air outlet (10) on the side facing away from the vortex tube (4). The hot stamping plate (2) and the printing platform (3) are both connected to the compression tank (6) through an air duct arranged in the air outlet (10). A piston column (11) for opening and closing the air outlet (10) is slidably arranged in the air outlet (10). The piston column (11) slides along the axial direction of the air outlet (10). An air outlet channel (12) is provided at the end of the piston column (11) located in the cavity (7) toward the side wall of the piston column (11). The piston column (11) slides toward the air duct, so that the outlet of the air outlet channel (12) enters the air duct to balance the air pressure in the cavity (7).

4. The heat dissipation device for a hot stamping machine according to claim 3, characterized in that: The air outlet (10) is provided with a first spring (13), the length direction of the first spring (13) is parallel to the axial direction of the air outlet (10), the first spring (13) is located between the cavity (7) and the piston column (11), one end of the first spring (13) is fixedly arranged in the air outlet (10), and the other end is fixedly arranged at the bottom of the piston column (11), and the first spring (13) drives the piston column (11) to have a movement tendency of sliding toward the cavity (7).

5. The heat dissipation device for a hot stamping machine according to claim 1, characterized in that: A second spring (26) is arranged on the hot stamping plate (2) and in the plug-in slot (23). The second spring (26) is located between the bottom of the plug-in slot (23) and the plugging head (25). One end of the second spring (26) is fixedly arranged on the bottom wall of the plug-in slot (23), and the other end is fixedly arranged on the bottom of the plugging head (25). The second spring (26) drives the plugging head (25) to have a sliding movement tendency toward and away from the bottom wall of the plug-in slot (23).

6. The heat dissipation device for a hot stamping machine according to claim 1, characterized in that: Three purge channels (22) are provided, one of which is provided in a horizontal direction to purge the printed material, and the other two purge channels (22) are symmetrically arranged along the horizontal direction and face the hot stamping plate (2) and the receiving seat (15) respectively.

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