A kind of equipment and process for hot stamping on the surface of powder box top cover

Abstract

The present invention relates to the field of printing technology, and discloses a surface hot stamping device and process for the top cover of a powder box, including a transfer film that is tensioned, a hot pressing plate that is fixedly arranged at the power output end of a driving member, and also includes: a fixed column, a piston rod and a conveying rod are dynamically sealed and plugged on the column, the piston rod and the conveying rod are connected so that when the piston rod slides, the conveying rod is driven to slide in the opposite direction; a square pier that is fixedly installed on the top of the column, a feed channel corresponding to the conveying rod and used to accommodate the top cover is opened on the square pier, the feed channel runs through the front side of the square pier, the top cover is placed in the feed channel with the top surface facing upward, and a support plate for supporting the top cover is arranged at the bottom of the feed channel. The present invention can automatically remove the top cover from the processing station and effectively avoid the obstruction of the transfer film without the need for an additional manipulator design, and can also realize automatic dust removal of the top cover, thereby saving the manual dust removal process.

Description

Technical Field

[0001] The invention relates to the field of printing technology, and in particular to a device and a process for hot stamping the surface of a powder box top cover. Background Art

[0002] The hot stamping process uses the principle of heat transfer to transfer the aluminum layer in the electroplated aluminum to the surface of the substrate to form a special metal effect. During the processing of the powder box, hot stamping is required on the upper surface of the top cover of the powder box to form specific patterns and texts.

[0003] When the top cover of the powder box is hot stamped, in order to improve the quality of hot stamping, the upper surface of the top cover needs to be kept clean. Therefore, in the prior art, a manual wind dust removal operation is usually performed before the top cover is placed in the workstation, that is, the top cover is held and placed in a strong air outlet, and the attachments attached to the top cover are blown away by strong wind, and then the top cover is placed in the processing station for hot stamping. After the hot stamping is completed, the top cover is manually removed from the processing station. After the actual operation of the above prior art, the inventor found that the prior art has at least the following defects:

[0004] Firstly, the manual dust removal process needs to be added during dust removal, which increases the operator's operating procedures. In addition, since the transfer film is located above the hot stamping station and is very close to the top of the top cover, and the transfer film will cover the entire top of the top cover, when the top cover is manually removed from the processing station, the transfer film will cause great obstruction, and there is a risk of contact with the heating plate and being burned by the heating plate when the hand is extended into the processing station, which poses a safety hazard. Even if a robot is added to replace the manual removal of the top cover from the hot stamping processing station, although the contact between the hand and the heating plate can be avoided, thereby ensuring the safety of the operator, it will be inconvenient to operate due to the presence of the transfer film at the processing station, and the design of the robot will greatly increase the equipment cost. Therefore, how to automatically remove the top cover from the processing station and effectively avoid the obstruction of the transfer film without the need for an additional robot design, and how to achieve automatic dust removal of the top cover to save the manual dust removal process are technical problems that need to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to provide a device and process for hot stamping the surface of a powder box top cover to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a device for hot stamping the surface of a powder box top cover, comprising a transfer film arranged in a tensioned manner, a hot pressing plate fixedly arranged at the power output end of a driving member, and further comprising:

[0007] A fixed column, a piston rod and a conveying rod are dynamically sealed and plugged into the column, and the piston rod and the conveying rod are connected so that when the piston rod slides, the conveying rod is driven to slide in the opposite direction;

[0008] A square pier fixedly mounted on the top of the column, the square pier is provided with a feeding channel corresponding to the conveying rod and used to accommodate the top cover, the feeding channel runs through the front side of the square pier, the top cover is placed in the feeding channel with the top surface facing upward, a supporting plate for supporting the top cover is provided at the bottom of the feeding channel, and an air outlet is provided on the rear side of the square pier and is connected to a fan through the air outlet;

[0009] A baffle plate disposed on the square pier is used to prevent the top cover from moving downward so as to separate the top cover from the conveying rod;

[0010] The piston rod is fixedly connected to the power output end of the driving member. In the process of the driving member driving the piston rod downward, the conveying rod is driven upward to be inserted into the top cover and drives the top cover to pass through the baffle and then pass through the air outlet to be dusted; in the process of the driving member driving the piston rod upward to drive the conveying rod to move downward, the top cover is limited by the baffle and blocks the air outlet, so that when the top cover is separated from the conveying rod, the fan blows the top cover out from the front side of the square pier.

[0011] In the above-mentioned powder box top cover surface hot stamping device, the conveying rod includes an integrally arranged contact piece, and the contact piece abuts and cooperates with the baffle during the up and down sliding process of the conveying rod, and the baffle is elastically rotatably arranged so that when the contact piece abuts against the baffle, it drives the baffle to rotate and then passes over the baffle. During the downward movement of the conveying rod, when the contact piece passes over the baffle, the baffle elastically resets and supports the bottom of the top cover so that the top cover cannot move downward together with the conveying rod.

[0012] The above-mentioned powder box top cover surface hot stamping equipment has two baffles, and two clamping plates that are elastically rotatably provided on the square pier and overlap the two baffles one by one, and the clamping plates are located above the baffles. During the upward movement of the conveying rod, the top cover is driven to pass through between the two baffles and then enter between the two clamping plates and is elastically clamped by the two clamping plates so that the top cover can be fixed and then hot stamped.

[0013] In the above-mentioned powder box top cover surface hot stamping device, the conveying rod drives the contact piece to drive the two baffles to rotate during the downward movement so that the two baffles drive the tops of the two clamping plates to rotate toward the outside of the top cover in a one-to-one manner, thereby automatically releasing the top cover.

[0014] In the above-mentioned powder box top cover surface hot stamping device, when the top of the conveying rod is inserted into the top cover and abuts against the top cover, a gap is formed between the contact piece and the top cover so that the contact piece passes over the baffle and does not contact the top cover when the baffle rotates upward elastically.

[0015] The above-mentioned powder box top cover surface hot stamping equipment, the side of the square pier is provided with a feeding inlet connected to the feeding channel, the support plate extends into the feeding inlet, the number of the support plates is two and they are symmetrically arranged, the top cover is located on the top of the two support plates and is inserted into the feeding channel from the feeding inlet until it abuts against the inner wall of the feeding channel.

[0016] The above-mentioned powder box top cover surface hot stamping equipment, the column is provided with a central hole corresponding to the conveying rod and passing through the column, and a sealing hole corresponding to the piston rod and passing through the column, the conveying rod dynamic seal is inserted in the central hole, and the piston rod dynamic seal is inserted in the sealing hole.

[0017] In the above-mentioned device for hot stamping the surface of the powder box top cover, the central hole comprises an upper hole and a lower hole which are sequentially connected up and down, the diameter of the upper hole is larger than that of the lower hole and is used to accommodate the contact piece.

[0018] In the above-mentioned powder box top cover surface hot stamping device, the bottom of the column is sealed with a base, the top of the base is provided with a stepped groove, and the bottom of the lower hole and the bottom of the sealing hole are both connected to the stepped groove.

[0019] A hot stamping process for the top cover of a powder box, based on the hot stamping equipment, comprises the following steps:

[0020] S1, feeding: first put the top cover to be stamped into the feeding channel from the feeding entrance on the side of the square pier until it abuts against the inner wall of the feeding channel. Feeding from the feeding entrance will not be hindered by the transfer film, and the operation is more convenient;

[0021] S2, synchronous processing of feeding, dust removal and hot stamping: start the driving member, and the power output end of the driving member drives the hot pressing plate and the piston rod to move downward synchronously. The downward movement of the hot pressing plate is to approach the top of the transfer film and cooperate with the conveying rod to perform hot stamping on the top cover. The piston rod moves downward to drive the conveying rod to slide upward. The upward sliding of the conveying rod is synchronized with the downward movement of the hot pressing plate. During the upward sliding of the conveying rod, the conveying rod is first inserted into the top cover and then drives the top cover to continuously approach the air outlet. When the top cover passes through the feeding channel, the dust of the top cover is achieved based on the setting of the fan. After that, the top cover continuously approaches the bottom of the transfer film. When the top cover abuts against the bottom of the transfer film, the feeding of the top cover is achieved. When the feeding of the top cover is completed, the hot pressing plate and the top of the transfer film are also abutted, so that the hot pressing plate and the conveying rod are used to squeeze the transfer film together to achieve hot stamping on the top cover, thereby achieving the feeding, dust removal and hot stamping of the top cover synchronously.

[0022] S3, automatic unloading: After the hot stamping is completed, the power output end of the driving part drives the hot pressing plate and the piston rod to move upward synchronously until they are reset. The upward movement of the piston rod drives the conveying rod to move downward. During the downward movement of the conveying rod, the top cover is first driven to move downward synchronously. Then the top cover is limited by the baffle and separated from the conveying rod that is moving downward. At this time, the top cover blocks the air outlet, and then the fan blows the top cover that has been hot stamped out from the front side of the square pier to achieve automatic unloading. This unloading method cleverly uses the wind power of the fan, eliminates the design of the robot, and will not be hindered by the transfer film.

[0023] Beneficial effect: In the above technical scheme, the present invention provides a powder box top cover surface hot stamping equipment and process, by establishing a connection between the power output end of the driving member and the conveying rod, so that only through the reciprocating operation of the power output end of the driving member, the top cover can be loaded and unloaded in the vertical direction, so that it will not be hindered by the transfer film; and by arranging the air outlet in the top cover loading and unloading stroke, the top of the top cover can be automatically dusted in the process of the driving member driving the hot pressing plate to move down for hot stamping, thereby eliminating the additional manual dust removal process; and after the hot stamping is completed, the driving member drives the hot pressing plate to move downward to remove the dust from the top of the top cover. During the upward reset process, the top cover is driven to move downward first to move away from the transfer film, thereby avoiding obstruction by the transfer film, and then the top cover is cleverly blown out from the front side of the square pier by the strong wind generated by the fan, thereby realizing automatic unloading. This unloading method not only ensures that the top cover will not be obstructed by the transfer film, but also does not require the design of an additional robot. It can be seen that the present invention can automatically remove the top cover from the processing station and effectively avoid obstruction by the transfer film without the need for an additional robot design, and can also realize automatic dust removal of the top cover, thereby saving the manual dust removal process, and can effectively solve the deficiencies in the prior art;

[0024] Furthermore, the present invention can automatically fix and center the top cover during upward movement by elastically rotating the two clamping plates above the two baffles, so that the top cover is positioned specifically during hot stamping, thereby ensuring the uniformity and stability of the hot stamping position of the top cover;

[0025] Moreover, by utilizing the ingenious cooperation between the two baffles, the two clamping plates and the contact piece, when the conveying rod is moved down and reset, when the contact piece drives the two baffles to rotate, the two baffles can drive the top of the corresponding two clamping plates to rotate toward the outside of the top cover, thereby automatically releasing the fixation of the two clamping plates to the top cover so that the top cover can automatically fall onto the two baffles. It can be seen that the two baffles can not only support the top cover, but also automatically release the fixed top cover when rotating, which has an unexpected technical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the three-dimensional structure of the hot stamping equipment provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of a cross-sectional structure between a base, a column, a square pier, a conveying rod and a piston rod in an initial state provided by an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the disassembly structure of the base, the column, the square pier and the piston rod provided in an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure between two baffles and two clamping plates provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of a top cover provided by an embodiment of the present invention when being squeezed by two clamping plates;

[0032] Figure 6 A schematic diagram of the structure of a conveying rod provided in an embodiment of the present invention;

[0033] Figure 7 A schematic diagram of the structure between the square pier and the fan provided in an embodiment of the present invention;

[0034] Figure 8 A schematic diagram of the structure of a square pier provided in an embodiment of the present invention;

[0035] Fig. 9 A schematic cross-sectional view of the structure of the embodiment of the present invention when the top cover is lowered into the delivery port in the initial state;

[0036] Fig.10 The embodiment of the present invention provides Fig. 9 A schematic diagram of the enlarged structure of part A;

[0037] Fig.11 A schematic cross-sectional view of the structure of the conveying rod provided in the embodiment of the present invention when it is inserted into the top cover and pushes the top cover upward to drive the two baffles to rotate;

[0038] Fig.12 A schematic cross-sectional view of the top cover when two clamping plates provided in an embodiment of the present invention clamp and fix the top cover;

[0039] Fig.13 A schematic cross-sectional view of the structure when the contact piece drives two baffles to rotate during the downward movement of the conveying rod provided by the embodiment of the present invention;

[0040] Fig.14 A schematic cross-sectional view of the top plate provided in an embodiment of the present invention when it is released and falls on top of two baffles.

[0041] Description of reference numerals:

[0042] 1. Fixed plate; 2. Base; 201. Step groove; 3. Column; 301. Upper hole; 302. Lower hole; 303. Sealing hole; 4. Square pier; 401. Feeding entrance; 402. Feeding channel; 403. Air outlet; 404. Avoiding groove; 405. Inner groove; 406. Through hole; 5. Baffle; 501. L-shaped plate; 502. Arc plate; 503. Guide plate; 6. Clamp; 601. Pressing plate; 7. Transfer film; 8. Top cover; 9. Conveying rod; 901. Contact piece; 10. Support plate; 11. First rotating shaft; 12. Second rotating shaft; 13. Piston rod; 14. Driving member; 15. Hot pressing plate; 16. Unwinding roller; 17. Orienting roller; 18. Winding roller; 19. Bolt sheet; 20. Support plate; 21. Torsion spring; 22. Fan. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] First embodiment:

[0045] like Figure 1-14 As shown, an embodiment of the present invention provides a powder box top cover surface hot stamping device, comprising a transfer film 7 arranged in a tensioned manner, a hot pressing plate 15 fixedly arranged at the power output end of a driving member 14, and further comprising:

[0046] A fixed column 3, on which a piston rod 13 and a delivery rod 9 are dynamically sealed and plugged, the piston rod 13 and the delivery rod 9 are connected so that when the piston rod 13 slides, the delivery rod 9 is driven to slide in the opposite direction;

[0047] A square pier 4 is fixedly mounted on the top of the column 3, and a feeding channel 402 is provided on the square pier 4, which corresponds to the conveying rod 9 and is used to accommodate the top cover 8. The feeding channel 402 passes through the front side of the square pier 4, and the top cover 8 is placed in the feeding channel 402 with the top surface facing upward. A support plate 10 for supporting the top cover 8 is provided at the bottom of the feeding channel 402, and an air outlet 403 is provided on the rear side of the square pier 4 and is connected to the fan 22 through the air outlet 403;

[0048] The baffle plate 5 disposed on the square pier 4 is used to prevent the top cover 8 from moving downward so as to separate the top cover 8 from the conveying rod 9;

[0049] The piston rod 13 is fixedly connected to the power output end of the driving member 14. In the process of the driving member 14 driving the hot pressing plate 15 and the piston rod 13 to move downward, the conveying rod 9 is driven upward to be inserted into the top cover 8 and drives the top cover 8 to pass through the baffle 5 and then pass through the air outlet 403 to be dusted, and then reversely extrude the transfer film 7 with the hot pressing plate 15 to achieve hot stamping; in the process of the driving member 14 driving the hot pressing plate 15 and the piston rod 13 to move upward to drive the conveying rod 9 to move downward, the top cover 8 is limited by the baffle 5 and blocks the air outlet 403, so that when the top cover 8 is separated from the conveying rod 9, the fan 22 blows the top cover 8 out from the front side of the square pier 4.

[0050] The hot stamping device on the top cover of the powder box provided in this embodiment is used for hot stamping the top surface of the top cover. The words related to position and direction mentioned in the text are relative to the drawings, and the "dynamic seal" in the text refers to sliding and sealing. Specifically, it includes a fixed plate 1, on which a feed roller 16, a winding roller 18 and a plurality of directional rollers 17 are rotatably arranged. The transfer film 7 passes through the plurality of directional rollers 17 in sequence from the feed roller 16 and is wound up by the winding roller 18. A section of the transfer film 7 located between the two directional rollers 17 corresponds to the hot pressing plate 15 and is used for hot stamping. During hot stamping, the hot pressing plate 15 is located above the transfer film 7, and the top cover 8 is located below the transfer film 7 and squeezes each other. The structural settings of the feed roller 16, the winding roller 18 and the plurality of directional rollers 17 are all prior art and will not be described in detail. The driving member 14 is a hydraulic cylinder or a pneumatic cylinder. The speed of the power output end of the driving member 14 should not be too fast. The speed can be adjusted according to actual needs. The details are not repeated. The driving member 14 is fixedly mounted on the fixed plate 1. The hot pressing plate 15 and the piston rod 13 are fixedly mounted on the power output end of the driving member 14. The driving member 14 is used to drive the hot pressing plate 15 and the piston rod 13 to move up and down. The number of piston rods 13 is multiple. In this embodiment, the number of piston rods 13 is four. The four piston rods 13 are arranged at the four corners of a rectangle. The hot pressing plate 15 is located at the center of the two piston rods 13. The column 3 and the square pier 4 are fixedly connected by bolt sheets 19, the column 3 is fixedly connected to the fixed plate 1, the piston rod 13 is dynamically sealed and plugged into the column 3 and slides through the square pier 4 and is fixedly connected to the power output end of the driving member 14, and a conveying rod 9 is also dynamically sealed and plugged into the column 3. The conveying rod 9 is used to push the top cover 8 and push the top cover 8 to the processing station for hot stamping. The conveying rod 9 is connected to the column 3, so that when the column 3 is driven to move downward by the driving member 14, the column 3 can drive the conveying rod 9 to move upward synchronously, and the upward movement of the conveying rod 9 realizes the continuous pushing of the top cover 8 until the top cover 8 completes the hot stamping.

[0051] In this embodiment, the feeding channel 402 opened on the square pier 4 passes through the top and bottom of the square pier 4 so that the top cover 8 can pass through the square pier 4. The feeding channel 402 also passes through the front side of the square pier 4, so that the top cover 8 can be unloaded from the front side of the square pier 4. The support plate 10 is fixedly installed at the bottom of the feeding channel 402 for supporting the top cover 8. There are two support plates 10, and the conveying rod 9 can pass between the two support plates 10. In the initial state, the top of the conveying rod 9 is not higher than the top height of the support plate 10. The top cover 8 to be stamped is placed with the top surface facing up in the feeding channel 402, and the open mouth of the top cover 8 is downward and abutted against the top surface of the support plate 10. The conveying rod 9 is cylindrical. When the side of the top cover 8 abuts against the inner wall of the feeding channel 402, the top cover 8 is coaxial with the conveying rod 9. At this time, the conveying rod 9 can be accurately inserted into the top cover 8 when it moves up. The rear side of the square pier 4 is provided with an air vent 403, one side of the air vent 403 is connected to the feeding channel 402, and the other side is connected to the outside. The side of the air vent 403 connected to the outside is connected to the fan 22, and the fan 22 is used to output strong winds. The strong winds are blown into the feeding channel 402 through the air vent 403 to remove dust from the top of the top cover 8, and the opening of the air vent 403 connected to the feeding channel 402 is larger than the opening connected to the outside so that the strong wind blown out from the air vent 403 completely covers the top surface of the top cover 8. In the initial state, when the top cover 8 is placed in the feeding channel 402, the top height of the top cover 8 is lower than the height of the air vent 403 so that the strong wind cannot blow to the top cover 8.

[0052] Among them, the baffle plate 5 is arranged on the square pier 4 and partially extends into the feeding channel 402. The baffle plate 5 is used to prevent the top cover 8 from moving downward so as to separate the top cover 8 from the conveying rod 9. Specifically, in the process of the conveying rod 9 moving upward, when the top cover 8 is pushed to the processing station by the conveying rod 9 for hot stamping, the top cover 8 can sequentially pass over the baffle plate 5 and the air outlet 403, and then the top cover 8 completes the hot stamping. After the hot stamping is completed, the driving member 14 will drive the hot pressing plate 15 and the piston rod 13 to move upward and reset. The upward movement of the piston rod 13 drives the conveying rod 9 to move downward and reset. The top cover 8 also moves downward with the conveying rod 9 under the action of gravity. When the top cover 8 reaches the baffle plate 5, the top cover 8 is blocked by the baffle plate 5 and cannot continue to move downward. The top cover 8 The opening surface of the top cover 8 abuts against the top surface of the baffle 5. At this time, the top cover 8 is located in the feeding channel 402 and covers the air outlet 403, and the conveying rod 9 continues to move downward. When the conveying rod 9 is separated from the top cover 8, due to the lack of the limit of the conveying rod 9, the top cover 8 can be blown under the action of strong wind. Since the feeding channel 402 runs through the front side of the square pier 4 and the air outlet 403 is located on the rear side of the square pier 4, the strong wind blows toward the front side of the square pier 4, so that the top cover 8 is blown out from the front side of the feeding channel 402, realizing automatic unloading, and cleverly avoiding the obstruction of the transfer film 7 to the unloading of the top cover 8. A support plate 20 is fixedly installed on the front side of the feeding channel 402 for receiving the blown-out top cover 8.

[0053] The working principle is as follows: first, place the top cover 8 to be stamped with the top surface facing upward on the support plate 10 in the feeding channel 402, and make the side of the top cover 8 abut against the inner wall of the feeding channel 402, then start the fan 22 and the driving member 14, and the fan 22 can also be started first. The strong wind generated when the fan 22 is started blows into the feeding channel 402, and the start of the driving member 14 drives the hot pressing plate 15 and the piston rod 13 to move downward synchronously. The downward movement of the hot pressing plate 15 makes it constantly approach the top of the transfer film 7, and the downward movement of the piston rod 13 drives the conveying rod 9 to move upward continuously. When the conveying rod 9 moves upward, first its top is accurately inserted into the top cover 8, and then it drives the top cover 8 to move upward together. During the upward movement of the top cover 8, it first passes through the baffle 5, and then constantly approaches the air outlet 403. When the top of the top cover 8 reaches the air outlet 403 At this time, strong wind removes the attachments such as dust on the top surface of the top cover 8, and then the top cover 8 reaches the processing station. At this time, the top of the top cover 8 is located above the square pier 4 and abuts against the bottom of the transfer film 7. At the same time, the hot pressing plate 15 abuts against the top of the transfer film 7. Then the hot pressing plate 15 and the top cover 8 simultaneously squeeze the transfer film 7 to achieve hot stamping of the top cover 8. After the hot stamping is completed, the driving member 14 drives the hot pressing plate 15 and the piston rod 13 to move up and reset. The upward movement of the piston rod 13 drives the conveying rod 9 to move down and reset. The top cover 8 moves down with the conveying rod 9 under the action of gravity. When the top cover 8 reaches the baffle 5, the top cover 8 is limited by the baffle 5. After the conveying rod 9 is separated from the top cover 8, due to the lack of the conveying rod 9 limiting the position, the top cover 8 is blown out from the front side of the feeding channel 402 by the strong wind generated by the fan 22 to achieve automatic unloading.

[0054] It can be seen that in this embodiment, by establishing a connection between the power output end of the driving member 14 and the conveying rod 9, the top cover 8 can be loaded and unloaded in the vertical direction only by the reciprocating operation of the power output end of the driving member 14, so that it will not be hindered by the transfer film 7; and by arranging the air outlet 403 in the loading and unloading stroke of the top cover 8, the dust removal operation on the top of the top cover 8 can be automatically realized in the process of the driving member 14 driving the hot pressing plate 15 to move down for hot stamping, thereby eliminating the additional manual dust removal process; and after the hot stamping is completed, the driving member 14 drives the hot pressing plate 15 to move up and reset. The top cover 8 is driven to move downward first to move away from the transfer film 7, thereby avoiding obstruction of the transfer film 7, and then the top cover 8 is cleverly blown out from the front side of the square pier 4 by the strong wind generated by the fan 22, thereby realizing automatic unloading. This unloading method ensures that the top cover 8 will not be obstructed by the transfer film 7, and there is no need to increase the design of a robot. It can be seen that the present invention does not require an additional robot design, and can not only automatically remove the top cover from the processing station and effectively avoid obstruction of the transfer film, but also realize automatic dust removal of the top cover, thereby saving the manual dust removal process, and can effectively solve the shortcomings of the prior art.

[0055] In this embodiment, the conveying rod 9 includes an integrally arranged contact piece 901. When the conveying rod 9 slides up and down, the contact piece 901 abuts against the baffle 5. The baffle 5 is elastically rotatable so that when the contact piece 901 abuts against the baffle 5, the baffle 5 is driven to rotate and then pass over the baffle 5. When the contact piece 901 passes over the baffle 5 during the downward movement of the conveying rod 9, the baffle 5 is elastically reset and supports the bottom of the top cover 8 so that the top cover 8 cannot move down together with the conveying rod 9. Specifically, the contact piece 901 is staggered from the support plate 10 in the horizontal direction but partially overlaps with the baffle 5. The top cover 8 also partially overlaps with the baffle 5, so that when the conveying rod 9 moves up and down, the top cover 8 and the contact piece 901 will partially abut against the baffle 5 when they reach the baffle 5. When the conveying rod 9 drives the contact piece 901 and the top cover 8 to move upward, the top cover 8 and the contact piece 901 abut against the baffle 5 in turn and drive the baffle 5 to rotate, so that the top cover 8 and the contact piece 901 can both pass over the baffle 5. When the conveying rod 9 moves downward, The contact piece 901 first drives the baffle 5 to rotate elastically and pass over the baffle 5, and then the baffle 5 is reset and abuts against the bottom of the top cover 8. The self-weight of the top cover 8 cannot drive the baffle 5 to rotate elastically, that is, the resistance of the baffle 5 to the elastic rotation downward is greater than the gravity of the top cover 8, so that the baffle 5 can support the top cover 8, so that the top cover 8 cannot pass over the baffle 5, and thus cannot continue to move downward, and the conveying rod 9 drives the contact piece 901 to continue to move downward, so that the conveying rod 9 is pulled out from the top cover 8, thereby realizing the separation of the conveying rod 9 and the top cover 8.

[0056] There are two baffles 5, and two clamps 6 are elastically rotatably arranged on the square pier 4 and overlapped with the two baffles 5 one by one. The clamps 6 are located above the baffles 5. When the conveying rod 9 moves upward, it drives the top cover 8 to pass through between the two baffles 5 and then enter between the two clamps 6 and be elastically clamped by the two clamps 6 so that the top cover 8 is fixed and then gilded. Specifically, two inner grooves 405 corresponding to the two baffles 5 are opened in the square pier 4, and the two inner grooves 405 are connected with the feeding channel 402. The baffle 5 is rotatably arranged in the inner groove 405 through the first rotating shaft 11, and the clamps 6 are rotatably arranged in the inner groove 405 through the second rotating shaft 12. The second rotating shaft 12 is fixedly installed in the inner groove 405, and the clamps 6 are rotatably connected with the second rotating shaft 12. A torsion spring 21 is arranged between the clamps 6 and the second rotating shaft 12, and the torsion spring 21 is clamped with the clamps 6 and fixedly connected with the second rotating shaft 12, and the torsion of the torsion spring 21 is used to realize the elastic rotation of the clamps 6. A pressure plate 601 is integrally provided on the top of the splint 6. The two pressure plates 601 are in an "eight" shape and are used to abut against the side of the top cover 8. The surface where the pressure plate 601 abuts against the top cover 8 is an arcuate surface. Based on the torsion force of the torsion spring 21, when the top cover 8 enters between the two pressure plates 601 from the bottom, the top cover 8 pushes the two pressure plates 601 to elastically rotate toward the outside of the top cover 8. Under the action of the elastic force, the two pressure plates 601 squeeze the arcuate side surface of the top cover 8 to fit with the arcuate inner wall of the feeding channel 402, thereby realizing the centering and fixation of the top cover 8, so that the top cover 8 is in a specific position during hot stamping, thereby ensuring the uniformity and stability of the hot stamping position of the top cover 8.

[0057] Among them, the two clamps 6 are located between the two baffles 5, and the height of the clamps 6 is higher than the baffles 5, so that when the top cover 8 moves upward, it will first pass through the two baffles 5 and then enter between the two clamps 6. When the top cover 8 is located at the processing station, the contact piece 901 is also located above the two baffles 5. In the initial state, the two baffles 5 are in one-to-one contact with the two clamps 6. When the conveying rod 9 moves upward and the top cover 8 or the contact piece 901 drives the two baffles 5 to rotate, the two baffles 5 do not contact the clamps 6. At this time, the baffles 5 do not have elastic rotation force. On the contrary, when the conveying rod 9 moves downward and the contact piece 901 drives the baffle 5 to rotate, the two baffles 5 push the two clamps 6 to rotate elastically in one-to-one correspondence. Based on the elastic rotation force of the clamps 6, the baffles 5 also rotate elastically. Therefore, when the contact piece 901 is staggered with the baffle 5, the baffle 5 can be elastically reset, so that the baffle 5 can support the top cover 8 and prevent the top cover 8 from moving downward.

[0058] The baffle 5 includes an L-shaped plate 501, an arc plate 502 and a guide plate 503 connected in one piece, the first rotating shaft 11 is rotatably connected at the corner of the L-shaped plate 501, the arc plate 502 and the guide plate 503 are located in the feeding channel 402 and fixedly connected to the same end of the L-shaped plate 501, the side of the L-shaped plate 501 away from the arc plate 502 is abutted against the clamping plate 6, the two arc plates 502 are used to support the top cover 8, and the two guide plates 503 extend to the front side of the square pier 4, which are used to provide support for the top cover 8 when the top cover 8 is blown away by strong wind, so that the top cover 8 is unloaded onto the supporting plate 20 along the two guide plates 503. Two avoidance grooves 404 corresponding to the two baffles 5 are also provided in the square pier 4, and the two avoidance grooves 404 are used to provide rotation space for the two baffles 5 to ensure the smooth rotation of the baffles 5. Moreover, the weight of the L-shaped plate 501 is smaller than that of the arc-shaped plate 502 and the guide plate 503, so that when the two baffles 5 are pushed and rotated by the upwardly moved top cover 8 or the contact piece 901, the two baffles 5 can automatically reset under the action of gravity.

[0059] Furthermore, during the downward movement of the conveying rod 9, the contact piece 901 is driven to drive the two baffles 5 to rotate so that the two baffles 5 drive the tops of the two clamping plates 6 to rotate toward the outside of the top cover 8 in a one-to-one correspondence, thereby automatically releasing the top cover 8. Specifically, since the top cover 8 is fixed by the two clamping plates 6, the top cover 8 needs to be released to realize the automatic unloading of the top cover 8. For this reason, the present invention does not need to add additional structures, and only needs to use the downward movement of the conveying rod 9 to reset, that is: when the conveying rod 9 moves downward, the contact piece 901 constantly approaches the two arc-shaped plates 502 and pushes the two arc-shaped plates 502 to rotate around the corresponding first rotating shaft 11, and the rotation of the two arc-shaped plates 502 causes the two L-shaped plates 501 to rotate as well. The rotation of the two L-shaped plates 501 pushes the two clamping plates 6 to rotate about the corresponding second rotating shaft 12 in a one-to-one correspondence. At this time, the two pressing plates 601 rotate toward the outside of the top cover 8 to release the fixation of the top cover 8. It can be seen that the two baffles 5 can not only support the top cover 8, but also automatically release the fixed top cover 8 when rotating, which has an unexpected technical effect.

[0060] When the fixation of the top cover 8 is released, the top cover 8 falls downward under the action of its own gravity and is re-mounted on the top of the conveying rod 9. When the contact piece 901 passes over the baffle 5, the two arc plates 502 are reset under the action of elastic force. At this time, the two arc plates 502 support the bottom of the top cover 8 to prevent the top cover 8 from moving downward. As the conveying rod 9 continues to move downward, the conveying rod 9 is separated from the top cover 8. The strong wind generated by the fan 22 blows into the feeding channel 402 through the air outlet 403 and blows the top cover 8 out of the feeding channel 402. The top cover 8 enters the support plate 20 along the two guide plates 503 to achieve unloading.

[0061] Among them, when the top of the conveying rod 9 is inserted into the top cover 8 and abuts against the top cover 8, a gap is formed between the contact piece 901 and the top cover 8 so that the contact piece 901 passes over the baffle 5 and does not contact the top cover 8 when the baffle 5 elastically rotates upward. This design can prevent the top cover 8 from being elastically collided by the baffle 5, thereby improving stability.

[0062] Furthermore, a feed inlet 401 connected to the feed channel 402 is provided on the side of the square pier 4, and the support plate 10 extends into the feed inlet 401. The number of the support plates 10 is two and they are arranged symmetrically. The top cover 8 is located on the top of the two support plates 10 and is inserted into the feed channel 402 from the feed inlet 401 until it abuts against the inner wall of the feed channel 402. In this way, the top cover 8 to be stamped is fed into the feed channel 402 from the side of the square pier 4, which is different from the feeding direction of the top cover 8 that has been stamped, so that the feeding of the top cover 8 to be stamped and the feeding out of the top cover 8 that has been stamped can be carried out synchronously, thereby improving the operation efficiency.

[0063] In this embodiment, the column 3 is provided with a central hole corresponding to the delivery rod 9 and penetrating the column 3, and a sealing hole 303 corresponding to the piston rod 13 and penetrating the column 3. Both the central hole and the sealing hole 303 penetrate the top and bottom surfaces of the column 3. The delivery rod 9 is dynamically sealed and inserted in the central hole, and the piston rod 13 is dynamically sealed and inserted in the sealing hole 303. The number of sealing holes 303 is the same as the number of piston rods 13 and corresponds one to one, and the multiple sealing holes 303 are all connected to the central hole. The square pier 4 is provided with through holes 406 corresponding one to one to the multiple sealing holes 303, and the multiple piston rods 13 pass through the multiple through holes 406 in a one-to-one manner.

[0064] The central hole includes an upper hole 301 and a lower hole 302 connected in sequence. The diameter of the upper hole 301 is larger than that of the lower hole 302 and is used to accommodate the contact piece 901. The conveying rod 9 is dynamically sealed and plugged into the lower hole 302.

[0065] The method for achieving the connection between the multiple sealing holes 303 and the center hole is as follows: the bottom of the column 3 is sealed with a base 2, the base 2 is fixedly connected to the fixed plate 1, and a stepped groove 201 is provided on the top of the base 2. The bottom of the lower hole 302 and the bottom of the sealing hole 303 are both connected to the stepped groove 201, that is: the multiple sealing holes 303 are connected to the lower hole 302 through the stepped groove 201, thereby achieving the connection between the multiple sealing holes 303 and the center hole.

[0066] Among them, two support plates 10 are arranged front and back, and two baffles 5 are arranged left and right. The front and rear side surfaces of the contact piece 901 are flat surfaces and are located between the two support plates 10 so that the contact piece 901 does not contact the two support plates 10; the left and right side surfaces of the contact piece 901 are arc-shaped surfaces and are also located between the two support plates 10 and do not contact the two support plates 10, but partially overlap with the two arc plates 502, so that the contact piece 901 can drive the baffle 5 to rotate when it passes over the baffle 5.

[0067] Second embodiment:

[0068] like Figure 1-14 As shown, a hot stamping process for the surface of a powder box top cover provided by an embodiment of the present invention is based on the hot stamping equipment mentioned above and includes the following steps:

[0069] S1, feeding: first, put the top cover 8 to be stamped into the feeding channel 402 from the feeding port 401 on the side of the square pier 4 until it abuts against the inner wall of the feeding channel 402. The feeding from the feeding port 401 will not be hindered by the transfer film 7, and the operation is more convenient;

[0070] S2, synchronous processing of feeding, dust removal and hot stamping: start the driving member 14, the power output end of the driving member 14 drives the hot pressing plate 15 and the piston rod 13 to move downward synchronously, the hot pressing plate 15 moves downward to get close to the top of the transfer film 7 and cooperate with the conveying rod 9 to perform hot stamping on the top cover 8, the piston rod 13 moves downward to drive the conveying rod 9 to slide upward, the upward sliding of the conveying rod 9 is synchronized with the downward movement of the hot pressing plate 15, and during the upward sliding of the conveying rod 9, the conveying rod 9 is first inserted into the top cover 8 and then drives the top cover 8 to continuously Close to the air outlet 403, when the top cover 8 passes through the feeding channel 402, the top cover 8 is dusted based on the setting of the fan 22, and then the top cover 8 continues to approach the bottom of the transfer film 7. When the top cover 8 abuts against the bottom of the transfer film 7, the top cover 8 is loaded. When the loading of the top cover 8 is completed, the hot pressing plate 15 and the top of the transfer film 7 are also abutted, so that the hot pressing plate 15 and the conveying rod 9 jointly squeeze the transfer film 7 to achieve hot stamping of the top cover 8, thereby simultaneously achieving the loading, dust removal and hot stamping of the top cover 8;

[0071] S3, automatic unloading: after the hot stamping is completed, the power output end of the driving part 14 drives the hot pressing plate 15 and the piston rod 13 to move upward synchronously until they are reset. The upward movement of the piston rod 13 drives the conveying rod 9 to move downward. During the downward movement of the conveying rod 9, the top cover 8 is first driven to move downward synchronously. Then, the top cover 8 is limited by the baffle 5 and separated from the conveying rod 9 that is moving downward. At this time, the top cover 8 blocks the air outlet 403, and then the fan 22 blows the top cover 8 that has been completed with hot stamping out from the front side of the square pier 4 to realize automatic unloading. This unloading method cleverly utilizes the wind power of the fan 22, eliminates the design of the robot, and will not be hindered by the transfer film 7.

[0072] In step S2, the number of baffles 5 is two, and two clamping plates 6 are elastically rotatably arranged on the square pier 4 and overlapped with the two baffles 5 one by one. The clamping plates 6 are located above the baffles 5. During the upward movement of the conveying rod 9, the top cover 8 is driven to pass through between the two baffles 5 and then enter between the two clamping plates 6 and be elastically clamped by the two clamping plates 6 so that the top cover 8 is fixed and then gilded. Specifically, two inner grooves 405 corresponding to the two baffles 5 are opened in the square pier 4, and the two inner grooves 405 are connected with the feeding channel 402. The baffle 5 is rotatably arranged in the inner groove 405 through the first rotating shaft 11, and the clamping plate 6 is rotatably arranged in the inner groove 405 through the second rotating shaft 12. The second rotating shaft 12 is fixedly installed in the inner groove 405, and the clamping plate 6 is rotatably connected with the second rotating shaft 12. A torsion spring 21 is arranged between the clamping plate 6 and the second rotating shaft 12, and the torsion spring 21 is clamped with the clamping plate 6 and fixedly connected with the second rotating shaft 12, and the elastic rotation of the clamping plate 6 is realized by the torsion of the torsion spring 21. A pressure plate 601 is integrally provided on the top of the splint 6. The two pressure plates 601 are in an "eight" shape and are used to abut against the side of the top cover 8. The surface where the pressure plate 601 abuts against the top cover 8 is an arcuate surface. Based on the torsion force of the torsion spring 21, when the top cover 8 enters between the two pressure plates 601 from the bottom, the top cover 8 pushes the two pressure plates 601 to elastically rotate toward the outside of the top cover 8. Under the action of the elastic force, the two pressure plates 601 squeeze the arcuate side surface of the top cover 8 to fit with the arcuate inner wall of the feeding channel 402, thereby realizing the centering and fixation of the top cover 8, so that the top cover 8 is in a specific position during hot stamping, thereby ensuring the uniformity and stability of the hot stamping position of the top cover 8.

[0073] In step S3, during the downward movement of the conveying rod 9, the contact piece 901 is driven to drive the two baffles 5 to rotate so that the two baffles 5 drive the tops of the two clamping plates 6 to rotate toward the outside of the top cover 8 in a one-to-one correspondence, thereby automatically releasing the top cover 8. Specifically, since the top cover 8 is fixed by the two clamping plates 6, the top cover 8 needs to be released to realize the automatic unloading of the top cover 8. For this reason, the present invention does not need to add additional structures, and only needs to use the downward movement of the conveying rod 9 to reset, that is: when the conveying rod 9 moves downward, the contact piece 901 constantly approaches the two arc plates 502 and pushes the two arc plates 502 to rotate around the corresponding first rotating shaft 11, and the rotation of the two arc plates 502 causes the two L-shaped plates 501 to rotate as well. The rotation of the two L-shaped plates 501 pushes the two clamping plates 6 to rotate about the corresponding second rotating shaft 12 in a one-to-one correspondence. At this time, the two pressing plates 601 rotate toward the outside of the top cover 8 to release the fixation of the top cover 8. It can be seen that the two baffles 5 can not only support the top cover 8, but also automatically release the fixed top cover 8 when rotating, which has an unexpected technical effect.

[0074] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for hot stamping the surface of a powder box top cover, comprising a transfer film (7) arranged in a tensioned manner, and a hot pressing plate (15) fixedly arranged at the power output end of a driving member (14), characterized in that: Also includes: A fixedly arranged column (3), on which a piston rod (13) and a conveying rod (9) are slidably and sealingly inserted, and the piston rod (13) and the conveying rod (9) are connected so that when the piston rod (13) slides, the conveying rod (9) is driven to slide in the opposite direction; A square pier (4) is fixedly mounted on the top of the column (3), the square pier (4) is provided with a feeding channel (402) corresponding to the conveying rod (9) and used to accommodate the top cover (8), the feeding channel (402) passes through the front side of the square pier (4), the top cover (8) is placed in the feeding channel (402) with the top surface facing upward, a support plate (10) for supporting the top cover (8) is provided at the bottom of the feeding channel (402), and an air outlet (403) is provided on the rear side of the square pier (4) and a fan (22) is connected through the air outlet (403); A baffle (5) disposed on the square pier (4) and used to prevent the top cover (8) from moving downward so as to separate the top cover (8) from the conveying rod (9); The piston rod (13) is fixedly connected to the power output end of the driving member (14); in the process of the driving member (14) driving the piston rod (13) to move downward, the conveying rod (9) is driven upward to be inserted into the top cover (8) and the top cover (8) is driven to pass through the baffle (5) and then pass through the air outlet (403) to be dusted; in the process of the driving member (14) driving the piston rod (13) to move upward to drive the conveying rod (9) to move downward, the top cover (8) is limited by the baffle (5) and blocks the air outlet (403), so that when the top cover (8) is separated from the conveying rod (9), the fan (22) blows the top cover (8) out from the front side of the square pier (4); The conveying rod (9) comprises an integrally arranged contact piece (901); the contact piece (901) abuts against the baffle (5) during the upward and downward sliding of the conveying rod (9); the baffle (5) is elastically rotatable so that when the contact piece (901) abuts against the baffle (5), the baffle (5) is driven to rotate and then passes over the baffle (5); when the conveying rod (9) passes over the baffle (5), the baffle (5) elastically resets and supports the bottom of the top cover (8) so that the top cover (8) cannot move downward together with the conveying rod (9); The column (3) is provided with a central hole corresponding to the delivery rod (9) and penetrating the column (3), and a sealing hole (303) corresponding to the piston rod (13) and penetrating the column (3); the delivery rod (9) is slidably and sealingly inserted in the central hole, and the piston rod (13) is slidably and sealingly inserted in the sealing hole (303).

2. The device for hot stamping the top cover of a powder box according to claim 1, characterized in that: The number of the baffles (5) is two, and two clamping plates (6) are elastically rotatably provided on the square pier (4) and overlap the two baffles (5) one by one. The clamping plates (6) are located above the baffles (5). During the upward movement of the conveying rod (9), the top cover (8) is driven to pass through between the two baffles (5) and then enter between the two clamping plates (6) and be elastically clamped by the two clamping plates (6) so that the top cover (8) is fixed and then gilded.

3. The device for hot stamping the top cover of a powder box according to claim 2, characterized in that: During the downward movement of the conveying rod (9), the contact piece (901) is driven to drive the two baffles (5) to rotate, so that the two baffles (5) drive the tops of the two clamping plates (6) to rotate toward the outside of the top cover (8) in a one-to-one correspondence, thereby automatically releasing the top cover (8).

4. The device for hot stamping the top cover of a powder box according to claim 1, characterized in that: When the top of the conveying rod (9) is inserted into the top cover (8) and abuts against the top cover (8), a gap is formed between the contact piece (901) and the top cover (8) so that the contact piece (901) passes over the baffle (5) and does not contact the top cover (8) when the baffle (5) elastically rotates upward.

5. The device for hot stamping the top cover of a powder box according to claim 1, characterized in that: The side of the square pier (4) is provided with a feeding inlet (401) connected to the feeding channel (402); the support plate (10) extends into the feeding inlet (401); the number of the support plates (10) is two and they are arranged symmetrically; the top cover (8) is located on the top of the two support plates (10) and is inserted into the feeding channel (402) from the feeding inlet (401) until it abuts against the inner wall of the feeding channel (402).

6. The device for hot stamping the top cover of a powder box according to claim 1, characterized in that: The central hole comprises an upper hole (301) and a lower hole (302) which are connected in sequence from top to bottom; the diameter of the upper hole (301) is larger than that of the lower hole (302) and is used to accommodate a contact sheet (901).

7. The device for hot stamping the top cover of a powder box according to claim 6, characterized in that: The bottom of the column (3) is sealed with a base (2), the top of the base (2) is provided with a stepped groove (201), and the bottom of the lower hole (302) and the bottom of the sealing hole (303) are both connected to the stepped groove (201).

8. A hot stamping process for the top cover of a powder box, based on the hot stamping equipment described in any one of claims 1 to 7, characterized in that: The following steps are involved: S1, feeding: first, the top cover (8) to be stamped is placed into the feeding channel (402) from the feeding port (401) on the side of the square pier (4) until it abuts against the inner wall of the feeding channel (402). The feeding from the feeding port (401) will not be hindered by the transfer film (7), and the operation is more convenient; S2, simultaneous processing of material loading, dust removal and hot stamping: the driving member (14) is started, and the power output end of the driving member (14) drives the hot pressing plate (15) and the piston rod (13) to move downward synchronously. The hot pressing plate (15) moves downward to approach the top of the transfer film (7) and cooperate with the conveying rod (9) to perform hot stamping on the top cover (8). The piston rod (13) moves downward to drive the conveying rod (9) to slide upward. The upward sliding of the conveying rod (9) is synchronized with the downward movement of the hot pressing plate (15). During the upward sliding process of the conveying rod (9), the conveying rod (9) is first inserted into the top cover (8) and then drives the top cover (8) to continuously approach. The air outlet (403) is configured such that when the top cover (8) passes through the feeding channel (402), dust removal of the top cover (8) is achieved based on the setting of the fan (22), and then the top cover (8) continuously approaches the bottom of the transfer film (7). When the top cover (8) abuts against the bottom of the transfer film (7), the top cover (8) is loaded. When the loading of the top cover (8) is completed, the hot pressing plate (15) also abuts against the top of the transfer film (7), thereby achieving hot stamping of the top cover (8) under the joint extrusion action of the hot pressing plate (15) and the conveying rod (9) on the transfer film (7), thereby simultaneously achieving loading, dust removal and hot stamping of the top cover (8); S3, automatic unloading: after the hot stamping is completed, the power output end of the driving member (14) drives the hot pressing plate (15) and the piston rod (13) to move upward synchronously until they are reset. The upward movement of the piston rod (13) drives the conveying rod (9) to move downward. During the downward movement of the conveying rod (9), the top cover (8) is first driven to move downward synchronously. Then, the top cover (8) is limited by the baffle (5) and separated from the conveying rod (9) that is moving downward. At this time, the top cover (8) blocks the air outlet (403), and then the fan (22) blows the top cover (8) that has been completed with hot stamping out from the front side of the square pier (4), thereby realizing automatic unloading. This unloading method cleverly utilizes the wind power of the fan (22), eliminates the design of the robot, and is not hindered by the transfer film (7).

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