A gilding machine

Abstract

The utility model belongs to the gilding machine technical field, concretely relates to a gilding machine, including the host computer of execution gilding operation, be equipped with the transfer roll and mounting bracket that can be opposite to the up and down motion of gilding piece on the host computer, be equipped with the paper feeding mechanism of located transfer roll one side, first support mechanism and located transfer roll the other side second support mechanism, paper collecting mechanism in proper order on the mounting bracket, second support mechanism and first support mechanism structure are same, still be equipped with detection mechanism between second support mechanism and transfer roll, first support mechanism be equipped with with transfer roll opposite and parallelly arranged limit roll, cooperation roll, limit roll and cooperation roll are rubber roll and can rotate oppositely. Through the setting of above -mentioned component, not only avoid the shift of gilding paper, and make gilding paper always keep tight, also adapt the gilding paper of multiple specification width size simultaneously.

Description

Technical Field

[0001] This utility model belongs to the technical field of hot stamping machines, and specifically relates to a hot stamping machine. Background Technology

[0002] In the field of hot stamping, the stable tension of hot stamping foil is a key prerequisite for ensuring the accuracy of hot stamping and the continuity of production. In the existing technology, the tension of hot stamping foil is usually achieved through the coordinated action of the unwinding frame and the rewinding frame. The unwinding frame is responsible for continuously releasing the substrate to be hot stamped, while the rewinding frame simultaneously recycles the waste paper after the hot stamping operation is completed. The two maintain the tension of the hot stamping foil in the processing path by matching their rotation speeds.

[0003] However, existing tensioning and winding structures have significant technical defects in practical applications, especially for narrow hot stamping foil. Due to the weak rigidity of the substrate and poor lateral stress stability, lateral misalignment is prone to occur during the dynamic process of unwinding and rewinding. Once the hot stamping foil is misaligned, it directly leads to a mismatch between the hot stamping pattern and the preset position of the workpiece, causing hot stamping operation misalignment and resulting in a large number of scrapped products. At the same time, after the misalignment problem occurs, the normal operation of the hot stamping equipment must be interrupted, and the position of the hot stamping foil must be manually adjusted to restore alignment. This not only seriously disrupts the production process but also significantly increases the cost of manual intervention and production time loss.

[0004] Meanwhile, during the hot stamping process, the hot stamping foil needs to pass through heated rollers to transfer the hot stamping layer. After being heated, the waste paper's substrate undergoes irreversible deformation and lengthening due to thermal expansion and contraction. Existing winding racks typically set their winding speed based on the theoretical feed speed of the hot stamping foil, without considering the dimensional changes of the waste paper after heating. This results in a mismatch between the winding speed of the winding rack and the actual output speed of the waste paper. The winding speed cannot adapt to the elongated state of the waste paper in time, causing loose accumulation of waste paper before winding, which significantly reduces the tension of the hot stamping foil throughout the processing path. Insufficient tension further exacerbates the risk of lateral displacement of the hot stamping foil, ultimately leading to a continuous deterioration in the accuracy of the hot stamping position. Frequent downtime for adjustments causes unnecessary mechanical wear on the equipment's transmission system and positioning mechanism, shortening the equipment's lifespan. Simultaneously, increased scrap rates and decreased production efficiency directly drive up production costs for enterprises. Existing technology can no longer meet the demands of high-precision, continuous hot stamping production. Utility Model Content

[0005] The purpose of this utility model is to provide a hot stamping machine that solves the technical problem that existing eyeglass display racks do not have functions such as cable management and height adjustment to meet the needs of XR eyeglasses during display.

[0006] To achieve the above objectives, this utility model provides a hot stamping machine, including a main unit for performing hot stamping operations. The main unit is equipped with a transfer roller and a mounting frame that can move up and down relative to the workpiece to be hot stamped. The mounting frame sequentially includes a paper feeding mechanism and a first support mechanism located on one side of the transfer roller, and a second support mechanism and a paper receiving mechanism located on the other side of the transfer roller. The second support mechanism has the same structure as the first support mechanism, and a detection mechanism is also provided between the second support mechanism and the transfer roller. The first support mechanism includes a limiting roller and a cooperating roller arranged opposite and parallel to the transfer roller. The limiting roller and the cooperating roller are rubber rollers and can rotate relative to each other. The limiting roller includes at least one second circular roller, with a first circular roller and a first limiting block arranged sequentially on both sides of the second circular roller. The diameters of the second circular roller and the first circular roller are different. The mating roller includes at least one fourth circular roller, with a third circular roller and a second limiting block arranged sequentially on both sides of the fourth circular roller. The third circular roller abuts against the first circular roller and has the same diameter. The second circular roller and the fourth circular roller abut against each other. The first circular roller is connected to the second circular rollers on both sides, and the fourth circular roller is connected to the third circular rollers on both sides, so that the first circular roller rotates synchronously with the second circular rollers on both sides, and the fourth circular roller rotates synchronously with the third circular rollers on both sides.

[0007] Preferably, the number or diameter of the second and fourth rollers is adjusted to accommodate hot stamping foil of different widths.

[0008] Preferably, the detection mechanism includes a telescopic rod fixed on the mounting frame, and a micro switch located at the end of the telescopic rod adjacent to the hot stamping foil. The micro switch is positioned above and in contact with the waste paper after hot stamping is completed. The paper receiving mechanism includes a paper receiving frame and a servo motor.

[0009] Preferably, the first support mechanism further includes a first connecting frame that is detachably connected to the mounting frame, and the first connecting frame is provided with a first support rod and a second support rod that are perpendicular to the first connecting frame on the side adjacent to the transfer roller.

[0010] Preferably, the first support rod and the second support rod are threaded rods.

[0011] Preferably, the limiting roller is fixedly mounted on the first support rod, and the mating roller is fixedly mounted on the second support rod.

[0012] Preferably, the first limiting block and the second limiting block are nuts and are matched with the first support rod and the second support rod, respectively, and the first limiting block and the second limiting block are fixed to the first support rod and the second support rod by thread engagement.

[0013] Preferably, the diameter of the second roller is smaller than the diameter of the first roller, and the sum of the diameters of the fourth roller and the second roller is equal to twice the diameter of the first roller.

[0014] Preferably, the first, second, third, and fourth rollers are deep groove ball bearings with a silicone layer on their outer surfaces, and the inner ring diameters of the first, second, third, and fourth rollers are the same, with their outer rings connected together.

[0015] Preferably, the diameter of the first limiting block is the same as the diameter of the inner ring of the first roller, and the diameter of the second limiting block is the same as the diameter of the inner ring of the third roller.

[0016] The hot stamping machine provided in this embodiment of the utility model has at least one of the following technical effects:

[0017] This utility model discloses a hot stamping machine that, through the synergistic action of a limiting roller and a cooperating roller, can precisely guide and constrain the hot stamping paper. The structural design of the limiting roller and cooperating roller effectively prevents lateral displacement. The first and second circular rollers in the limiting roller have different diameters and rotate synchronously to form a groove-like structure. The third and fourth circular rollers in the cooperating roller form a corresponding cam-like cooperating structure. The limiting roller and the cooperating roller abut against each other, ensuring the hot stamping paper is stably embedded in the groove. Simultaneously, the silicone layer on the outer surface of the circular roller increases frictional resistance and avoids damage from hard contact. Combined with the rigid positioning of the first and second limiting blocks, and in conjunction with the paper feeding and receiving mechanisms, this significantly reduces the risk of misalignment of narrow-width hot stamping paper.

[0018] In this utility model, a hot stamping machine, with the cooperation of the detection mechanism, the paper feeding mechanism, and the paper taking mechanism, when the hot stamping paper deforms and elongates due to heating, resulting in a decrease in tension, the micro switch that was originally in contact with the waste paper generates a signal because it is separated from the waste paper. This signal drives the paper taking frame to accelerate winding through the servo motor, effectively offsetting the effect of thermal deformation, maintaining constant tension of the hot stamping paper, avoiding positioning deviation caused by slack, reducing the frequency of machine stoppages for adjustment, and sensing the tension status of the hot stamping paper in real time to achieve dynamic tension adjustment.

[0019] This utility model discloses a hot stamping machine. With the modular roller assembly, by increasing or decreasing the number of second and fourth rollers or adjusting their diameter, it can quickly adapt to hot stamping foils of different widths, improve the versatility of the equipment, and significantly reduce the equipment investment cost. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A perspective view of a hot stamping machine provided for an embodiment of this utility model.

[0022] Figure 2 A front view of a hot stamping machine provided for an embodiment of this utility model.

[0023] Figure 3 A perspective view of a first support mechanism in a hot stamping machine provided for an embodiment of this utility model.

[0024] Figure 4 An exploded view of the second support mechanism in a hot stamping machine provided in this embodiment of the present invention.

[0025] Figure 5 A cross-sectional view of a limiting roller in a hot stamping machine provided for an embodiment of this utility model.

[0026] The following are the labeling elements in the figure:

[0027] 10—Main Unit 11—Transfer Roller 12—Mounting Frame 20—Paper Feeding Mechanism 21—Paper Feeding Rack

[0028] 22—First paper feed roller 23—Second paper feed roller 24—Paper roller 25—Servo motor

[0029] 30—First support mechanism; 31—First connecting frame; 32—First support rod; 33—Second support rod

[0030] 34—Limiting roller; 341—First limiting block; 342—First circular roller; 343—Second circular roller

[0031] 35—Matching roller; 351—Second limiting block; 352—Third circular roller; 353—Fourth circular roller

[0032] 40—Second support mechanism; 50—Detection mechanism; 51—Telescopic rod; 52—Micro switch

[0033] 60—Paper receiving mechanism; 61—Paper receiving rack; 62—Servo motor II. Detailed Implementation

[0034] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0038] In one embodiment of this utility model, such as Figure 1-4 As shown, a hot stamping machine is provided, including a main unit 10 for performing hot stamping operations. The main unit 10 is provided with a transfer roller 11 that can move up and down relative to the workpiece to be hot stamped and a mounting frame 12. The mounting frame 12 is provided with a paper feeding mechanism 20 and a first support mechanism 30 located on one side of the transfer roller 11, and a second support mechanism 40 and a paper receiving mechanism 60 located on the other side of the transfer roller 11. The second support mechanism 40 has the same structure as the first support mechanism 30. A detection mechanism 50 is also provided between the second support mechanism 40 and the transfer roller 11.

[0039] The main unit 10 integrates the power transmission system, temperature control system, and overall control module required for hot stamping operations, ensuring that all components can be precisely assembled and work together. During the hot stamping process, the main unit 10 provides the power drive for the transfer roller 11 to move up and down, while providing a stable support foundation for components such as the mounting frame 12 and the paper feeding mechanism 20, ensuring the continuity and stability of the hot stamping operation.

[0040] The transfer roller 11 is installed in the middle working area of ​​the main unit 10. The axis of the transfer roller 11 is perpendicular to the conveying direction of the workpiece to be hot-stamped, and the transfer roller 11 moves up and down reciprocally relative to the workpiece under the drive of the main unit 10. The outer surface of the transfer roller 11 is provided with a heating layer, which can stabilize the temperature within a preset range according to the hot-stamping process requirements during operation. When the workpiece to be hot-stamped is conveyed to the bottom of the transfer roller 11, the transfer roller 11 moves downward, so that the hot-stamping foil is in close contact with the surface of the workpiece. Through the synergy of heat and pressure, the metal foil layer on the hot-stamping foil is transferred to the surface of the workpiece, completing the transfer of the hot-stamping pattern. After the operation is completed, the transfer roller 11 returns to its original position, waiting for the next hot-stamping cycle.

[0041] The mounting bracket 12 is a rectangular rigid structure. It is detachably fixed to the main unit 10 by bolts and is located above the transfer roller 11. The mounting bracket 12 is symmetrically distributed along the axial direction of the transfer roller 11. The surface of the mounting bracket 12 is provided with evenly distributed threaded holes, which facilitates the subsequent support mechanism 30 to adjust the installation position according to the width and other specifications of the hot stamping foil.

[0042] The paper feeding mechanism 20 is mounted on the mounting frame 12 and is located on the side of the transfer roller 11 facing the feeding direction. The paper feeding mechanism 20 continuously and stably feeds the hot stamping paper substrate to the transfer roller 11, providing a continuous supply of raw materials for the hot stamping operation.

[0043] The paper feeding mechanism 20 includes a paper feeding frame 21, a first paper feeding roller 22, a second paper feeding roller 23, a paper roller 24, and a servo motor 25.

[0044] The paper feeding rack 21 is fixedly connected to the mounting frame 12. The paper feeding rack 21 is used to install the first paper feeding roller 22 and the second paper feeding roller 23. The first paper feeding roller 22 and the second paper feeding roller 23 are rubber rollers. The first paper feeding roller 22 and the second paper feeding roller 23 are parallel and abut against each other. They are rotatably installed in the paper feeding rack 21 through the bearing seat.

[0045] The servo motor 25 is fixed to the side of the mounting bracket 12. Its output shaft is connected to one end of the first paper feeding roller 22 via a synchronous belt. The servo motor 25 is electrically connected to the control module of the main unit 10. The speed of the servo motor 25 is adjusted according to the hot stamping operation speed, thereby controlling the rotation speed of the first paper feeding roller 22. With the first paper feeding roller 22 and the second paper feeding roller 23 parallel and in relative contact, the first paper feeding roller 22 drives the second paper feeding roller 23 to rotate.

[0046] The paper roller 24 is the carrier of the roll hot stamping paper. The paper roller 24 is set above the first paper feeding roller 22 and between the first paper feeding roller 22 and the second paper feeding roller 23 by a support rod. The paper roller 24 and the support rod are rotatably connected by a bearing.

[0047] After being released from the paper roller 24, the hot stamping foil passes between the first paper feed roller 22 and the second paper feed roller 23. The foil is clamped and transported through the squeezing contact between the first and second paper feed rollers 22 and 23. Driven by the servo motor 25, the first and second paper feed rollers 22 and 23 pull the paper roller 24 to rotate, thus conveying the hot stamping foil. The cooperation between the first and second paper feed rollers 22 and 23 and the servo motor 25 precisely controls the transmission length of the hot stamping foil to the first support mechanism 30 and prevents wrinkles or deviations in the foil before it enters the support mechanism through the friction of the rubber rollers. Simultaneously, the flexible properties of the silicone layer prevent hard contact from damaging the metal foil layer on the surface of the hot stamping foil. The cooperation between the first and second paper feed rollers 22 and 23, the paper roller 24, and the servo motor 25 ensures the quality of the hot stamping, guarantees the smoothness of the foil transmission path, and reduces transmission resistance.

[0048] The first support mechanism 30 is mounted on the mounting frame 12 and is located between the paper feeding mechanism 20 and the transfer roller 11. The first support mechanism 30 guides and limits the hot stamping paper output by the paper feeding mechanism 20 to prevent the hot stamping paper from shifting laterally before entering the transfer roller 11.

[0049] The first support mechanism 30 includes a first connecting frame 31, a first support rod 32, a second support rod 33, a limiting roller 34, and a mating roller 35.

[0050] The first connecting frame 31 is rectangular and has a long through hole. The first connecting frame 31 is detachably connected to the mounting frame 12 by bolts. When it is necessary to adapt to hot stamping foil of different widths or to perform hot stamping operations on different workpieces, the height and angle of the first connecting frame 31 relative to the mounting frame 12 can be adjusted by removing the bolts.

[0051] The first support rod 32 and the second support rod 33 are threaded rods. The first support rod 32 and the second support rod 33 are parallel to and perpendicular to the first connecting frame 31 on the side of the first connecting frame 31 facing the transfer roller 11. The first support rod 32 is located above the second support rod 33. The distance between the first support rod 32 and the second support rod is adjusted according to the diameter of the limiting roller 34 and the mating roller 35. The lengths of the first support rod 32 and the second support rod 33 are matched with the length of the transfer roller 11 to ensure support for hot stamping foil of different widths.

[0052] The limiting roller 34 is coaxially disposed on the first support rod 32. The limiting roller 34 includes a second circular roller 343 disposed along the axial direction of the first support rod 32, and a first circular roller 342 and a first limiting block 341 disposed adjacent to each other on both sides of the second circular roller 343.

[0053] Both the first roller 342 and the second roller 343 are deep groove ball bearings with a 2mm thick silicone layer on their outer surface. The outer diameter of the second roller 343 is smaller than the outer diameter of the first roller 342, and the inner ring diameters of the first roller 342 and the second roller 343 are the same. In this embodiment, the diameter of the first roller 342 is 45mm and the diameter of the second roller 343 is 42.5mm, so that the middle of the limiting roller 34 forms a groove-shaped structure with a width consistent with the width of the hot stamping foil.

[0054] like Figure 5 As shown, the outer rings of the first roller 342 and the second roller 343 overlap. Neodymium iron boron magnets are provided between the end faces of the outer rings of the first roller 342 and the second roller 343 to connect the outer rings of the first roller 342 and the second roller 343, thereby further ensuring that the outer rings of the first roller 342 and the second roller 343 rotate synchronously and avoiding wear of hot stamping foil due to different rotation speeds of the rollers.

[0055] The first limiting block 341 is a hexagonal nut that matches the thread on the surface of the first support rod 32. The diameter of the first limiting block 341 is the same as the inner ring diameter of the first roller 342. The first limiting block 341 is fixed to both ends of the first support rod 32 by threaded engagement and abuts against the first roller 342. The first limiting block 341 axially limits the first roller 342 and the second roller 343 to prevent axial movement of the rollers during rotation, thereby preventing the hot stamping foil from being deflected by the moving rollers. At the same time, the first limiting block 341 axially limits the first roller 342 and the second roller 343, so that the outer rings of the first roller 342 and the second roller 343 abut against each other, ensuring that the outer rings of the first roller 342 and the second roller 343 rotate synchronously.

[0056] By adjusting the number or diameter of the second roller 343 to accommodate hot stamping foil of different widths, the silicone layer of the second roller 343 increases the friction with the hot stamping foil, preventing the hot stamping foil from slipping during transport, and also avoids hard contact that could damage the metal foil layer on the surface of the hot stamping foil.

[0057] The mating roller 35 is coaxially fixed on the second support rod 33. The mating roller 35 includes a fourth circular roller 353 arranged along the axial direction of the second support rod 33, and a third circular roller 352 and a second limiting block 351 arranged adjacent to both sides of the fourth circular roller 353.

[0058] The third roller 352 and the fourth roller 353 are both deep groove ball bearings with a silicone layer on the outer surface. The inner ring diameter of the third roller 352 and the fourth roller 353 matches the outer diameter of the second support rod 33, and the outer rings of the third roller 352 and the fourth roller 353 are connected to achieve synchronous rotation.

[0059] The diameter of the third roller 352 is the same as that of the first roller 342. The diameter of the third roller 352 is larger than that of the fourth roller 353, and the sum of the diameters of the fourth roller 353 and the second roller 343 is twice the diameter of the first roller 342. In this embodiment, the diameter of the third roller 352 is 45mm and the diameter of the fourth roller 353 is 47.5mm, so that the outer surface of the mating roller 35 forms a cam-shaped protrusion structure, which cooperates with the groove-shaped recess structure of the limiting roller 34. A channel adapted to the width of the hot stamping foil is formed between the limiting roller 34 and the mating roller 35. Through the synergistic effect of the recess of the limiting roller 34 and the protrusion of the mating roller 35, the lateral precise positioning of the hot stamping foil is achieved, completely solving the problem of easy lateral misalignment of narrow hot stamping foil in the prior art.

[0060] The second limiting block 351 is a hexagonal nut that matches the second support rod 33. It is fixed to both ends of the second support rod 33 by threaded engagement. Its function is the same as that of the first limiting block 341, which axially limits the third roller 352 and the fourth roller 353 to prevent the third roller 352 and the fourth roller 353 from moving axially and to ensure that the mating roller 35 and the limiting roller 34 are kept in the preset position.

[0061] The silicone layers of the second roller 343 and the fourth roller 353 form a tight fit due to mutual contact. When the paper take-up holder 61 of the paper take-up mechanism 60 winds up the waste paper, the traction force generated by the hot stamping paper during the winding process will drive the second roller 343 and the fourth roller 353 to rotate synchronously. The high coefficient of friction of the silicone layer can ensure that the hot stamping paper and the roller surface do not slip relative to each other, so that the rotation speed of the roller is perfectly matched with the transmission speed of the hot stamping paper. At the same time, the silicone layer in the contact state can form a continuous and uniform clamping force, which not only prevents the hot stamping paper from wrinkling due to uneven force during transmission, but also further constrains the lateral position of the hot stamping paper through the synchronous rotation of the roller, preventing it from deviating to the side under the action of the winding traction force. Ultimately, it ensures that the transmission path of the hot stamping paper from the transfer roller 11 to the paper take-up holder 61 is always stable, improving the continuity and accuracy of the overall hot stamping operation.

[0062] The second support mechanism 40 is mounted on the mounting frame 12 and is located on the side of the transfer roller 11 facing the paper delivery mechanism. The structure of the second support mechanism 40 is exactly the same as that of the first support mechanism 30.

[0063] The second support mechanism 40 serves to guide and limit the waste paper after hot stamping. Since the waste paper has just been heated by the transfer roller 11, the substrate will be slightly deformed due to thermal expansion and contraction. If it is not limited, it is easy to shift laterally, which will affect the position of the hot stamping paper at the transfer roller 11 by pulling in the opposite direction, resulting in hot stamping misalignment. At the same time, the second support mechanism 40 and the first support mechanism 30 are distributed on both sides of the transfer roller 11, and can work together with the paper feeding mechanism 20 and the paper receiving mechanism 60 from both ends of the transfer roller 11 to maintain the position of the hot stamping paper in the entire transmission path.

[0064] The detection mechanism 50 is installed on the mounting frame 12 and is located between the second support mechanism 40 and the transfer roller 11, directly above the waste paper conveying path. The detection mechanism 50 detects the tension of the waste paper in real time and sends a signal back to the paper receiving mechanism 60 to realize dynamic tension adjustment of the hot stamping paper.

[0065] like Figure 2 As shown, the detection mechanism 50 includes an L-shaped telescopic rod 51 and a micro switch 52. One end of the telescopic rod 51 is fixed to the first connecting frame 31 by bolts, and the other end is perpendicular to the waste paper conveying path. By adjusting the length of the telescopic rod 51, the position of the micro switch 52 relative to the hot stamping foil can be adjusted.

[0066] The micro switch 52 is fixed to the lower end of the telescopic rod 51, which is perpendicular to the waste paper conveying path. The contact of the micro switch 52 is in close contact with the upper surface of the waste paper and is connected to the servo motor 62 of the paper receiving mechanism 60. When the hot stamping foil (waste paper) is in a normally taut state, the surface of the waste paper applies stable pressure to the contact of the micro switch 52, and the micro switch 52 remains closed. The servo motor 62 maintains the preset speed for winding. When the tension of the waste paper decreases due to heating deformation or other reasons, the surface of the waste paper will sag and the pressure on the micro switch 52 will disappear. The micro switch 52 will then disconnect and send a signal to the control module. After receiving the signal, the control module immediately controls the servo motor 62 to accelerate and speed up the winding to tighten the waste paper. When the waste paper is tightened again and contacts the contact of the micro switch 52 again, the micro switch 52 closes, the signal is reset, and the servo motor 62 returns to the preset speed. This real-time detection and dynamic adjustment design avoids fluctuations in the hot stamping paper force throughout the entire transmission path due to factors such as loose waste paper, reducing the frequency of downtime for adjustments.

[0067] The paper receiving mechanism 60 is mounted on the mounting frame 12 and is located on the side of the second support mechanism 40 away from the transfer roller 11. The paper receiving mechanism 60 plays the role of collecting waste paper after hot stamping is completed, and works with the detection mechanism 50, the paper feeding mechanism 20, the first support mechanism 30, and the second support mechanism 40 to maintain the overall tension of the hot stamping paper.

[0068] The paper take-up mechanism 60 includes a paper take-up frame 61 and a second servo motor 62. The paper take-up frame 61 is a roll-type structure, consisting of a roll and support plates on both sides. The paper take-up frame 61 is mounted on the mounting frame 12 via bearing seats, and the axis of the paper take-up frame 61 is parallel to the axis of the transfer roller 11. The second servo motor 62 is connected to one end of the paper take-up frame 61 via a transmission mechanism and is electrically connected to the control module of the host 10 and the micro switch 52 of the detection mechanism 50. The second servo motor 62 sets the initial winding speed according to the paper feeding speed of the paper feeding mechanism 20 to ensure basic matching between the winding speed and the paper feeding speed. The second servo motor 62 receives the on / off signal of the micro switch 52. When it detects that the waste paper is loose, it immediately accelerates the winding; when the waste paper is taut, it returns to the basic speed to achieve dynamic tension balance. This avoids both waste paper loosening due to slow winding and waste paper excessive stretching and breakage due to excessive winding, further ensuring the continuity and stability of the hot stamping operation.

[0069] The working principle of this utility model is as follows: A hot stamping machine firstly places and fixes the roll of hot stamping paper onto the paper roller 24. Then, the free end of the hot stamping paper released from the paper roller 24 is manually pulled, first passing between the first paper feeding roller 22 and the second paper feeding roller 23 in the paper feeding mechanism 20, and then introduced between the limiting roller 34 and the mating roller 35 of the first support mechanism 30—so that the hot stamping paper is accurately embedded in the transmission channel formed by the limiting roller 34 and the mating roller 35. Subsequently, the hot stamping paper is continued to be pulled under the transfer roller 11 and then passed into... Between the limiting roller 34 and the cooperating roller 35 of the second support mechanism 40, the free end of the hot stamping foil is finally fixed on the roll of the take-up rack 61 of the take-up mechanism 60, thus completing the construction of the entire hot stamping foil transmission path. After that, by setting the initial speed of the servo motor 25 of the paper feeding mechanism 20 and the initial speed of the servo motor 62 of the take-up mechanism 60, and observing the surface condition of the hot stamping foil, the tension of the hot stamping foil between the paper feeding mechanism 20 and the take-up mechanism 60 is adjusted until the hot stamping foil is in a state of no slack or excessive stretching and wrinkles.

[0070] Subsequently, the first paper feeding roller 22 and the second paper feeding roller 23, driven by servo motor 25, clamp and transport the hot stamping foil, causing the paper roller 24 to rotate and release the foil. The hot stamping foil enters the first support mechanism 30, and through the transmission channel formed by the limiting roller 34 and the cooperating roller 35, it achieves precise lateral positioning to prevent deviation. The hot stamping foil, after being positioned, is transported to the area below the transfer roller 11, where the transfer roller 11 presses downwards, transferring the metal foil layer to the surface of the part to be hot stamped, completing the hot stamping. The waste paper after hot stamping enters the second support mechanism 40, where it is guided and positioned again to avoid deviation caused by heat deformation. The waste paper passes through the detection mechanism 50, where the micro switch 52 detects its tension status in real time. If the waste paper is loose, servo motor 62 accelerates and drives the take-up rack 61 to rewind it. If the waste paper is taut, servo motor 62 maintains the normal rewinding speed, ultimately achieving stable recycling of the waste paper. This invention effectively solves the problems of narrow hot stamping foil being prone to shifting and the unstable paper force caused by thermal deformation of waste paper in existing hot stamping machines. At the same time, it can adapt to various specifications of hot stamping foil by adjusting the number / diameter of the rollers, thereby improving the equipment's versatility and production efficiency.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot stamping machine, comprising a main unit for performing hot stamping operations, wherein the main unit is provided with a transfer roller and a mounting frame that can move up and down relative to the workpiece to be hot stamped, characterized in that: The mounting frame is sequentially equipped with a paper feeding mechanism and a first support mechanism on one side of the transfer roller, and a second support mechanism and a paper receiving mechanism on the other side of the transfer roller. The second support mechanism has the same structure as the first support mechanism, and a detection mechanism is also provided between the second support mechanism and the transfer roller. The first support mechanism is equipped with a limiting roller and a mating roller that are directly opposite to and parallel to the transfer roller. The limiting roller and the mating roller are rubber rollers and can rotate relative to each other. The limiting roller includes at least one second circular roller, and a first circular roller and a first limiting block are sequentially provided on both sides of the second circular roller. The diameters of the second circular roller and the first circular roller are different. The mating roller includes at least one fourth circular roller, and a third circular roller and a second limiting block are sequentially provided on both sides of the fourth circular roller. The third circular roller abuts against the first circular roller and has the same diameter. The second circular roller and the fourth circular roller abut against each other. The first circular roller is connected to the second circular rollers on both sides, and the fourth circular roller is connected to the third circular rollers on both sides, so that the first circular roller rotates synchronously with the second circular rollers on both sides, and the fourth circular roller rotates synchronously with the third circular rollers on both sides.

2. The hot stamping machine according to claim 1, characterized in that: The number or diameter of the second and fourth rollers can be adjusted to accommodate hot stamping foil of different widths.

3. A hot stamping machine according to claim 1, characterized in that: The detection mechanism includes a telescopic rod fixed on the mounting frame, and a micro switch located at the end of the telescopic rod adjacent to the hot stamping foil. The micro switch is positioned above and in contact with the waste paper after hot stamping is completed. The paper receiving mechanism includes a paper receiving frame and a servo motor.

4. A hot stamping machine according to claim 1, characterized in that: The first support mechanism also includes a first connecting frame that is detachably connected to the mounting frame. The first connecting frame has a first support rod and a second support rod that are perpendicular to the first connecting frame on the side adjacent to the transfer roller.

5. A hot stamping machine according to claim 4, characterized in that: The first support rod and the second support rod are threaded rods.

6. A hot stamping machine according to claim 4, characterized in that: The limiting roller is fixedly mounted on the first support rod, and the mating roller is fixedly mounted on the second support rod.

7. A hot stamping machine according to claim 4, characterized in that: The first limiting block and the second limiting block are nuts and are matched with the first support rod and the second support rod. The first limiting block and the second limiting block are respectively fixed to the first support rod and the second support rod by thread engagement.

8. A hot stamping machine according to claim 1, characterized in that: The diameter of the second roller is smaller than the diameter of the first roller, and the sum of the diameters of the fourth roller and the second roller is equal to twice the diameter of the first roller.

9. A hot stamping machine according to claim 1, characterized in that: The first, second, third, and fourth rollers are preferably deep groove ball bearings with a silicone layer on their outer surfaces, and the inner ring diameters of the first, second, third, and fourth rollers are the same, with their outer rings connected together.

10. A hot stamping machine according to claim 7 or 9, characterized in that: The diameter of the first limiting block is the same as the diameter of the inner ring of the first roller, and the diameter of the second limiting block is the same as the diameter of the inner ring of the third roller.

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