A cover plate hot stamping machine

Abstract

The present application relates to the technical field of printing, and discloses a cover plate hot stamping machine, which comprises a base, a fixed seat fixedly arranged on the base, a fixed disc fixedly arranged on the fixed seat, and a film belt wound on the fixed disc; a circular cavity is arranged in the fixed disc, and a fixed block is fixedly arranged in the circular cavity; a rotating sleeve is rotatably arranged on the fixed block, a plurality of arc-shaped plates are slidingly installed on the rotating sleeve; a heating plate and a refrigeration plate are fixedly arranged on each arc-shaped plate; a first opening and a second opening are arranged on the fixed disc; the first opening and the second opening are located on the same circumference; a transmission mechanism is installed between the fixed block and the rotating sleeve, which drives the arc-shaped plate to translate along the axis of the rotating sleeve when the arc-shaped plate passes between the first opening and the second opening; a power assembly is installed on the fixed block, which drives the rotating sleeve to rotate; a retracting and releasing mechanism is installed on the fixed disc, which is driven by the arc-shaped plate. The film belt of the present application can directly contact the heating plate and the refrigeration plate, the printing efficiency is high, and the heating and cooling effects are good.

Description

Technical Field

[0001] This invention relates to the field of printing technology, and in particular to a cover plate hot stamping machine. Background Technology

[0002] Hot stamping machines are mainly used to hot stamp metallic coatings onto the edges of plastic covers, transferring the coating from the plastic to the workpiece.

[0003] The hot stamping printing apparatus for cigarette box packaging paper disclosed in CN117301707A includes a frame with hot stamping rollers and pressure rollers arranged parallel to each other and adjacent to each other. A hot stamping station is formed between the hot stamping rollers and the pressure rollers. The hot stamping rollers include a core and a cylinder rotatably sleeved on the outside of the core. The outer wall of the core has heating chambers and cooling chambers sequentially formed along the feeding direction of the hot stamping film. Both the heating chambers and the cooling chambers are filled with a heat-conducting medium. The heating chamber spans the hot stamping station and is connected to a heating component. The cooling chamber is connected to a cooling component. A hot stamping plate is formed on the outer wall of the cylinder. The cylinder is driven by a rotary power mechanism that can drive the cylinder to rotate around its own axis so that the hot stamping plate circulates through the heating chamber and the cooling chamber.

[0004] Based on the above technical features, the technical problem is as follows: In the existing technology, the heating and cooling of hot stamping film both need to be carried out indirectly through the cylinder. However, the cylinder is in a rotating state. After each position of the cylinder rotates once, it needs to be reheated and cooled again when it returns to the heating chamber and cooling chamber. This results in low printing efficiency and poor heating and cooling effects.

[0005] Therefore, it is necessary to solve the above problems by using a cover plate hot stamping machine. Summary of the Invention

[0006] The purpose of this invention is to provide a cover plate hot stamping machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cover plate hot stamping machine, comprising a base, a fixed seat fixedly disposed on the base, a fixed disc fixedly disposed on the fixed seat, and a film strip wound around the circumferential end of the fixed disc;

[0008] A circular cavity is formed along the axial direction inside the fixed disk, and a cylindrical fixing block is coaxially fixed inside the circular cavity; a rotating cylinder is rotatably sleeved on the fixing block, and multiple matching arc plates are slidably installed on the outer wall of the rotating cylinder;

[0009] Multiple arc-shaped plates are arranged in a circle along the circumference of the rotating cylinder, with the ends of two adjacent arc-shaped plates sliding in contact; a heating plate for hot stamping and a cooling plate for cooling the film are fixedly installed on the outer side of each arc-shaped plate.

[0010] The fixed disk has a first opening for exposing the heating plate and a second opening for exposing the cooling plate along the circumferential direction at its circumferential end; the first opening and the second opening are located on the same circumference at the circumferential end of the fixed disk.

[0011] A transmission mechanism is installed between the fixed block and the rotating cylinder to drive the arc plate to translate along the axial direction of the rotating cylinder when the arc plate passes between the first opening and the second opening.

[0012] The fixed block is equipped with a power component that drives the rotating drum to rotate.

[0013] The fixed disc is equipped with a winding mechanism for releasing and rewinding the film strip, which is driven by an arc plate.

[0014] Preferably, the transmission mechanism includes a transmission groove and a transmission shaft arranged radially along the rotating cylinder; multiple guide grooves are formed axially on the cylinder body, the multiple guide grooves are evenly distributed circumferentially along the rotating cylinder, and each guide groove penetrates the cylinder body radially along the rotating cylinder; multiple arc-shaped plates correspond one-to-one with the multiple guide grooves, and a transmission shaft is fixedly arranged on the inner side of each arc-shaped plate; each transmission shaft penetrates the guide groove corresponding to its arc-shaped plate and is limited and slidably engaged with the guide groove; the transmission groove is formed circumferentially at the circumferential end of the fixed block, and each transmission shaft is inserted into the transmission groove and is limited and slidably engaged with the transmission groove.

[0015] Preferably, the transmission groove includes a first arc-shaped groove, a second arc-shaped groove, and two spiral connecting grooves with the same spiral direction, all formed along the circumference of the fixed block at the circumferential end of the fixed block; the two ends of the first arc-shaped groove correspond one-to-one with the two ends of the second arc-shaped groove, and a connecting groove is provided between each end of the first arc-shaped groove and the corresponding end of the second arc-shaped groove; a connecting groove is provided between the ends of the first opening and the second opening that are close to each other and between the ends that are far apart.

[0016] Preferably, the power assembly includes a gear and an internal gear ring; a fourth motor is fixedly installed inside the fixed block, and the gear is fixedly sleeved on the output shaft of the fourth motor; the internal gear ring is sleeved outside the fixed block and coaxially fixed inside the rotating drum; the gear and the internal gear ring mesh with each other.

[0017] Preferably, the take-up and take-up mechanism includes a release roller, a take-up roller, and a tension roller parallel to the central axis of the fixed disc; a first mounting base, a second mounting base, and a third mounting base are fixedly disposed on the circumferential end of the fixed disc; the release roller is rotatably mounted on the first mounting base, and the take-up roller is rotatably mounted on the third mounting base; a rotating frame is rotatably mounted on the second mounting base, and the tension roller is rotatably mounted on the rotating frame; a rotating shaft parallel to the tension roller is rotatably mounted on the second mounting base, and the rotating frame is fixedly connected to the rotating shaft; a third motor is fixedly mounted on the second mounting base, and the output shaft of the third motor is coaxially fixedly connected to the rotating shaft; a linkage assembly for driving the take-up roller to rotate is mounted on the third mounting base, and the linkage assembly is driven by an arc-shaped plate.

[0018] Preferably, the linkage component includes a roller; a connecting shaft is rotatably mounted on the third mounting base, the connecting shaft being parallel to the take-up roller; the roller is fixedly sleeved on the connecting shaft; a clearance hole is provided at the circumferential end of the fixed disc for the roller to roll and abut against the arc plate; a driven roller is coaxially fixedly connected to the take-up roller, and a driving roller is coaxially fixedly connected to the connecting shaft; the driving roller and the driven roller are driven and sleeved within the same transmission belt.

[0019] Preferably, a sliding seat is slidably mounted on the base, and a support frame is fixedly mounted on the sliding seat; a rotating seat is rotatably mounted on the support frame, and a fixing plate is fixedly mounted on the rotating seat; a rotating disk for placing a cover plate is rotatably mounted on the fixing plate, and a clamp for holding and fixing the cover plate is mounted on the rotating disk; a second motor is fixedly mounted on the fixing plate, and the output shaft of the second motor is coaxially and fixedly connected to the rotating disk; a first driving component for driving the sliding seat to slide closer to or away from the fixing seat is mounted on the base, and a second driving component for driving the rotating seat to rotate is mounted on the sliding seat.

[0020] Preferably, the clamp includes a clamping block; multiple electric push rods are radially fixedly installed on the axial end of the rotating disk away from the second motor, and the multiple electric push rods are evenly distributed along the circumference of the rotating disk; the cover plate is an annular plate, and a clamping block for pressing against the inner wall of the cover plate is fixedly provided on the telescopic shaft of each electric push rod.

[0021] Preferably, the first drive assembly includes a lead screw, which is rotatably mounted on the base and faces the fixed seat; the lead screw passes through the sliding seat and is threadedly connected to the sliding seat, and the sliding seat is in a limiting sliding fit with the base; a first motor is fixedly mounted on the base, and the output shaft of the first motor is coaxially fixedly connected to the lead screw.

[0022] Preferably, the second drive assembly includes a hydraulic cylinder; a second hinge seat is fixedly disposed on the sliding seat, and a first hinge seat is fixedly disposed on the fixed plate; the cylinder body of the hydraulic cylinder is hinged to the second hinge seat, and the telescopic shaft of the hydraulic cylinder is hinged to the first hinge seat.

[0023] The technical effects and advantages of this invention are as follows: When hot stamping is performed, the film tape of this invention can directly contact the heating plate exposed at the first opening. After hot stamping is completed, the cooling plate is exposed at the second opening through the transmission mechanism, so that the film tape can directly contact the cooling plate, resulting in high printing efficiency and good heating and cooling effects. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the first driving component and the second driving component of the present invention;

[0026] Figure 3 This is a schematic diagram of the fixture of the present invention;

[0027] Figure 4 This is a partial three-dimensional schematic diagram of the present invention;

[0028] Figure 5 For the present invention Figure 4 Enlarged view of point A;

[0029] Figure 6 This is a schematic diagram of the membrane tape of the present invention wound on a fixed disk;

[0030] Figure 7 This is a schematic diagram of the interior of the fixed disc of the present invention;

[0031] Figure 8 For the present invention Figure 7 Enlarged view of point B;

[0032] Figure 9 This is a half-sectional schematic diagram of the fixed disk of the present invention;

[0033] Figure 10 This is a schematic diagram of the transmission mechanism of the present invention.

[0034] In the diagram: 1. Base; 2. First slide groove; 3. Lead screw; 4. First motor; 5. Sliding seat; 6. Support frame; 7. Rotating seat; 8. Second motor; 9. Fixed plate; 10. Rotating disc; 11. Second slide groove; 12. Electric push rod; 13. Clamping block; 14. First hinge seat; 15. Second hinge seat; 16. Hydraulic cylinder; 17. Cover plate; 18. Fixed seat; 19. Support block; 20. Fixed disc; 21. First mounting seat; 22. Release roller; 23. Second mounting seat; 24. Rotating shaft; 25. Rotating frame; 26. Tensioner 27. Tensioning roller; 28. Third motor; 29. ​​Third mounting base; 30. Take-up roller; 31. Connecting shaft; 32. Driven wheel; 33. Drive wheel; 34. Transmission belt; 35. Roller; 36. Clearance hole; 37. Film belt; 38. First opening; 39. Second opening; 40. Fixing block; 41. Fourth motor; 42. Gear; 43. Rotary drum; 44. Internal gear ring; 45. First arc groove; 46. Transmission shaft; 47. Arc plate; 48. Cooling plate; 49. Heating plate; 50. Guide groove; 51. Connecting groove; 52. Second arc groove. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] This invention provides, for example Figures 1 to 10 The illustrated cover plate hot stamping machine includes a base 1. A fixed seat 18 is fixedly mounted on the top of the base 1, and a sliding seat 5 is slidably mounted thereon. A first groove 2 is formed on the top of the base 1 along the left-right horizontal direction, and the fixed seat 18 is located on the left side of the first groove 2.

[0037] The vertical cross-section of the first slide groove 2 is inverted T-shaped. The sliding seat 5 is matched with the first slide groove 2 and is slidably installed in the first slide groove 2. A first drive assembly is installed on the base 1. The first drive assembly is used to drive the sliding seat 5 to slide along the first slide groove 2 closer to or away from the fixed seat 18.

[0038] Specifically, the first drive assembly includes a lead screw 3, which is horizontally positioned within the first slide groove 2 and rotatably connected to the base 1. The lead screw 3 is horizontally oriented towards the fixed seat 18. The lead screw 3 passes through the sliding seat 5 and is threadedly connected to the sliding seat 5. A first motor 4 is fixedly mounted on the base 1, and the output shaft of the first motor 4 passes through the first slide groove 2 and is coaxially fixedly connected to the lead screw 3.

[0039] A support frame 6 is fixedly mounted on the top of the sliding seat 5. The support frame 6 consists of two vertical frames, one in front of the other. Two trunnions are positioned between the two vertical frames, coaxially opposite each other in the front-back horizontal direction. Each trunnion corresponds one-to-one with one of the two vertical frames, and each trunnion passes through the corresponding vertical frame in the front-back horizontal direction and is rotatably connected to the corresponding vertical frame. A rotating seat 7 is positioned between the two vertical frames, located between the two trunnions and fixedly connected to them.

[0040] A fixing plate 9 is fixedly mounted on the rotating base 7, and the fixing plate 9 is parallel to the two trunnions. A parallel rotating disc 10 is rotatably mounted on the fixing plate 9. The axial end of the rotating disc 10 opposite to the fixing plate 9 is coaxially fixed and integrally formed into a circular boss. A ring-shaped cover plate 17 for rotating hot stamping is fitted onto the circular boss.

[0041] A clamp is installed on the circular boss, and the clamp is used to hold and fix the cover plate 17.

[0042] Specifically, the clamp includes a clamping block 13. Four second sliding grooves 11 are radially formed inside the circular boss, and the four second sliding grooves 11 are evenly distributed along the circumference of the circular boss. The end of each second sliding groove 11 away from the central axis of the circular boss extends to the rotating disk 10.

[0043] Each second slide groove 11 is fitted with a retaining block 13. Each second slide groove 11 is fitted with an electric push rod 12, the telescopic shaft of which is directed outward along the sliding direction of the retaining block 13 within the second slide groove 11 and is fixedly connected to the retaining block 13 within the second slide groove 11. The four retaining blocks 13 are used to press against the inner wall of the cover plate 17.

[0044] A second motor 8 is fixedly mounted on the rotating base 7, and the output shaft of the second motor 8 is arranged radially along the trunnion. The output shaft of the second motor 8 passes through the fixed plate 9 and is coaxially fixedly connected to the rotating disk 10.

[0045] A second drive assembly is installed on the sliding seat 5. The second drive assembly is used to drive the rotating seat 7 to rotate up and down in the left and right directions.

[0046] Specifically, the second drive assembly includes a hydraulic cylinder 16. A second hinge seat 15 is fixedly mounted on the top of the sliding seat 5, and the second hinge seat 15 is located on the left side of the support frame 6. A first hinge seat 14 is fixedly mounted on the end of the fixed plate 9 opposite to the rotating disk 10. The cylinder body of the hydraulic cylinder 16 is hinged to the second hinge seat 15, and the telescopic shaft of the hydraulic cylinder 16 is hinged to the first hinge seat 14.

[0047] A horizontal support block 19 is fixedly installed on the top of the fixed base 18, and a fixed disc 20 is fixedly installed on the right end of the support block 19. The central axis of the fixed disc 20 is set along the horizontal direction.

[0048] A film strip 36 is circumferentially wound around the circumferential end of the fixed disc 20. The film strip 36 is released and wound up by a take-up and take-up mechanism fixed on the fixed disc 20. The film strip 36 refers to a plastic strip with printing coating for rotary hot stamping, which is prior art and will not be described in detail here.

[0049] Specifically, the unwinding mechanism includes a release roller 22, a take-up roller 29, and a tension roller 26, all parallel to the central axis of the fixed disc 20. A first mounting base 21, a second mounting base 23, and a third mounting base 28 are fixedly disposed on the circumferential end of the fixed disc 20. The first mounting base 21 is located at the front end of the fixed disc 20, the second mounting base 23 is located below the first mounting base 21, and the third mounting base 28 is located at the top end of the fixed disc 20.

[0050] The first mounting base 21 consists of two first mounting blocks, which are arranged one on the left and one on the right. The release roller 22 is placed horizontally between the two first mounting blocks and is rotatably connected to the two first mounting blocks.

[0051] The third mounting base 28 consists of two third mounting blocks, one on the left and one on the right. The take-up roller 29 is placed horizontally between the two third mounting blocks and is rotatably connected to them.

[0052] The second mounting base 23 consists of two second mounting blocks, one on the left and one on the right. A horizontal rotating shaft 24 is placed between the two second mounting blocks, and the rotating shaft 24 is rotatably connected to the two second mounting blocks. A third motor 27 is fixedly mounted on the second mounting block on the right, and the output shaft of the third motor 27 is coaxially and fixedly connected to the rotating shaft 24.

[0053] A rotating frame 25 is fixedly mounted on the rotating shaft 24. The rotating frame 25 consists of two fourth mounting blocks. The two fourth mounting blocks are arranged on the left and right sides, and the tension roller 26 is placed horizontally between the two fourth mounting blocks and is rotatably connected to the two fourth mounting blocks.

[0054] One end of the film belt 36 is wound around the release roller 22, and the other end is wound around the take-up roller 29. The film belt 36 passes over the tension roller 26, and the tension roller 26 rolls and comes into contact with the film belt 36.

[0055] The linkage component is installed on the third mounting base 28. The linkage component is used to drive the winding roller 29 to rotate.

[0056] Specifically, the linkage component includes a roller 34. A connecting shaft 30 is horizontally placed between the two third mounting blocks of the third mounting base 28. The connecting shaft 30 is located below and parallel to the take-up roller 29, and is rotatably connected to the two third mounting blocks. The roller 34 is fixedly sleeved on the connecting shaft 30.

[0057] A driven pulley 31 is coaxially fixedly connected to the right end of the take-up roller 29, and a driving pulley 32 is coaxially fixedly connected to the right end of the connecting shaft 30. The driving pulley 32 and the driven pulley 31 are driven and sleeved within the same transmission belt 33.

[0058] A circular cavity is formed axially within the fixed disk 20. A cylindrical fixing block 39 is coaxially disposed within the circular cavity and is fixedly connected to the fixed disk 20. A rotating cylinder 42 is rotatably mounted on the fixing block 39. A power assembly is installed on the fixing block 39 to drive the rotating cylinder 42 to rotate.

[0059] Specifically, the power assembly includes a gear 41 and an internal gear ring 43. A meshing ring groove is formed along the circumferential direction on the circumferential end of the fixing block 39. A fourth motor 40 is fixedly installed inside the fixing block 39, with the output shaft of the fourth motor 40 horizontally facing left and inserted into the meshing ring groove. The gear 41 is fixedly sleeved on the output shaft of the fourth motor 40 and located within the meshing ring groove. The internal gear ring 43 is sleeved on the outside of the fixing block 39 and coaxially fixed inside the rotating drum 42. The gear 41 and the internal gear ring 43 mesh with each other.

[0060] Multiple matching arc-shaped plates 46 are slidably installed on the outer wall of the rotating cylinder 42. The multiple arc-shaped plates 46 are arranged in a circle along the circumference of the rotating cylinder 42, and the ends of two adjacent arc-shaped plates 46 slide in contact.

[0061] Each arc-shaped plate 46 has a heating plate 48 and a cooling plate 47 fixedly installed on its outer side. The heating plate 48 and the cooling plate 47 are arc-shaped plates that match the arc-shaped plate 46. Each arc-shaped plate 46 also has a matching arc-shaped partition plate fixedly installed on its outer side. Each arc-shaped partition plate rolls up to separate the heating plate 48 and the cooling plate 47 on its respective arc-shaped plate 46. Each heating plate 48 is located on the left side of the arc-shaped partition plate on its respective arc-shaped plate 46, and each cooling plate 47 is located on the right side of the arc-shaped partition plate on its respective arc-shaped plate 46.

[0062] The outer sides of the cooling plate 47, the heating plate 48, and the arc-shaped partition plate are all in sliding contact with the inner wall of the circular cavity, and the inner side of the arc-shaped plate 46 is in sliding contact with the outer wall of the rotating cylinder 42.

[0063] The heating plate 48 is used for rotating the hot stamping process, and the cooling plate 47 is used to cool the film belt 36. Both the heating plate 48 and the cooling plate 47 are used for transmission contact with the film belt 36. A controller and a built-in power supply are fixedly installed inside the arc-shaped plate 46, and the controller and the built-in power supply are electrically connected. Both the cooling plate 47 and the heating plate 48 are electrically connected to the controller.

[0064] A clearance hole 35 is opened at the top of the circumferential end of the fixed disc 20. The bottom end of the roller 34 passes through the clearance hole 35 and rolls against the arc-shaped partition plate on the outer side of the arc plate 46 when the arc plate 46 rotates through the clearance hole 35.

[0065] A first opening 37 is formed along the circumferential direction at the upper edge of the fixed disk 20. The first opening 37 is located at the bottom end of the fixed disk 20 and is used to expose the heating plate 48.

[0066] A second opening 38 is made along the circumferential direction at the upper edge of the fixed disk 20. The second opening 38 is located at the rear end of the fixed disk 20 and is used to expose the cooling plate 47.

[0067] The first opening 37 and the second opening 38 are located on the same circumference at the circumferential end of the fixed disk 20 and are both connected to the circular cavity.

[0068] A transmission mechanism is installed between the fixed block 39 and the rotating cylinder 42. When the arc plate 46 passes between the first opening 37 and the second opening 38, the transmission mechanism drives the arc plate 46 to translate axially along the rotating cylinder 42 so that the heating plate 48 is exposed when it revolves to the first opening 37 and the cooling plate 47 is exposed when it revolves to the second opening 38.

[0069] Specifically, the transmission mechanism includes a transmission groove and a transmission shaft 45 arranged radially along the rotating cylinder 42. Multiple guide grooves 49 are axially formed on the cylinder body of the rotating cylinder 42, and these guide grooves 49 are evenly distributed circumferentially along the rotating cylinder 42. Each guide groove 49 penetrates the cylinder body radially along the rotating cylinder 42. Multiple arc-shaped plates 46 correspond one-to-one with the multiple guide grooves 49, and a transmission shaft 45 is fixedly mounted on the inner side of each arc-shaped plate 46. Each transmission shaft 45 penetrates the guide groove 49 corresponding to its arc-shaped plate 46 and is in a limiting sliding engagement with the guide groove 49. The transmission groove is formed circumferentially at the circumferential end of the fixing block 39, and each transmission shaft 45 is inserted into the transmission groove and is in a limiting sliding engagement with the transmission groove.

[0070] To ensure that the drive shaft 45 does not rotate during the sliding process in the drive groove, the shaft body of the drive shaft 45 located in the guide groove 49 rotates in the form of a square block.

[0071] The transmission groove includes a first arc-shaped groove 44 and a second arc-shaped groove 51 formed along the circumference of the fixed block 39 at the circumferential end of the fixed block 39, and two spiral connecting grooves 50 with the same spiral direction. The two ends of the first arc-shaped groove 44 correspond one-to-one with the two ends of the second arc-shaped groove 51, and a connecting groove 50 is provided to connect the two ends of the first arc-shaped groove 44 with the corresponding ends of the second arc-shaped groove 51.

[0072] A connecting groove 50 corresponds to each end of the first opening 37 and the second opening 38 that are close to each other and to each other that are far apart.

[0073] Working principle:

[0074] When the cover plate 17 is fixed, the annular cover plate 17 is fitted onto the circular boss on the side of the rotating disk 10 away from the second motor 8. The multiple electric push rods 12 inside the rotating disk 10 are activated. The telescopic shaft of the electric push rod 12 extends outward along the second slide groove 11 toward the outside of the circular boss, driving the abutment block 13 fixed thereto to move synchronously until the multiple abutment blocks 13 are all tightly abutted against the inner wall of the cover plate 17, thereby achieving the clamping and fixing of the cover plate 17 on the rotating disk 10.

[0075] When adjusting the position and angle of the cover plate 17, the first motor 4 is started. The output shaft of the first motor 4 drives the lead screw 3 to rotate in the first slide groove 2 of the base 1. Since the lead screw 3 is threadedly connected to the sliding seat 5 and the sliding seat 5 is in a limited sliding fit with the first slide groove 2, the rotation of the lead screw 3 is converted into the sliding of the sliding seat 5 along the first slide groove 2 toward the fixed seat 18. This causes the support frame 6, rotating seat 7, fixed plate 9, rotating disk 10 and cover plate 17 on the sliding seat 5 to move closer to the fixed disk 20 at the same time, until the cover plate 17 approaches the membrane belt 36 around the fixed disk 20.

[0076] When the hydraulic cylinder 16 is activated, the telescopic shaft of the hydraulic cylinder 16 extends and retracts. Through the hinge action of the first hinge seat 14 and the second hinge seat 15, the rotating seat 7 is driven to rotate around the trunnion on the support frame 6. The rotating seat 7 drives the fixed plate 9, the rotating disk 10 and the cover plate 17 to rotate synchronously until the cover plate 17 is tightly attached to the film strip 36 of the fixed disk 20 in the circumferential direction, thus meeting the hot stamping position requirements.

[0077] When rotating the hot stamping, the fourth motor 40 inside the fixed block 39 is started. The output shaft of the fourth motor 40 drives the gear 41 to rotate. The rotation of the gear 41 drives the internal gear ring 43 and the rotating drum 42 to rotate synchronously around the fixed block 39. When the rotating drum 42 rotates, it pushes the arc plate 46 to revolve around the fixed block 39 through the guide groove 49 and the transmission shaft 45.

[0078] When the arc-shaped plate 46 revolves around the fixed block 39, it slides along the transmission groove. When the transmission shaft 45 slides in the first arc-shaped groove 44, the arc-shaped plate 46 maintains its axial position. When the transmission shaft 45 slides from the first arc-shaped groove 44 through the connecting groove 50 to the second arc-shaped groove 51, the helical structure of the connecting groove 50 drives the transmission shaft 45 to move axially along the rotating drum 42, thereby causing the arc-shaped plate 46 to translate axially along the rotating drum 42.

[0079] When the arc plate 46 revolves to the position of the first opening 37 of the fixed disk 20, the arc plate 46, after axial translation, exposes the outer heating plate 48 from the first opening 37 and contacts the membrane belt 36 circumferentially of the fixed disk 20; when the arc plate 46 continues to revolve to the position of the second opening 38 of the fixed disk 20, the drive shaft 45 moves along another connecting groove 50, and the arc plate 46 is axially translated again, exposing the outer cooling plate 47 from the second opening 38 and contacting the membrane belt 36.

[0080] At the same time, the second motor 8 is started. The output shaft of the second motor 8 drives the rotating disk 10 to rotate around its own axis. The rotating disk 10 drives the cover plate 17 fixed on it to rotate synchronously. Since the cover plate 17 is in close contact with the film belt 36 and the film belt 36 is in contact with the heating plate 48 exposed at the first opening 37, the heating plate 48 heats the film belt 36, so that the printing ink on the film belt 36 is transferred to the edge of the rotating cover plate 17 after being heated, thus completing the hot stamping operation.

[0081] After hot stamping, the film strip 36 continues to move circumferentially with the fixed disc 20. When the film strip 36 moves to the position of the second opening 38, it comes into contact with the cooling plate 47 exposed at the second opening 38. The cooling plate 47 quickly cools the film strip 36 to prevent the untransferred paint on the film strip 36 from sticking due to residual heat, thus ensuring the smooth winding of the film strip 36 in the future.

[0082] During the hot stamping process, the film strip 36 is wound up and unwound. When the film strip 36 is released, the release roller 22 wound on the first mounting base 21 rotates synchronously with the winding of the film strip 36, continuously releasing new film strip 36 circumferentially to the fixed disc 20.

[0083] When adjusting the tension of the film belt 36, the third motor 27 on the second mounting base 23 is started. The output shaft of the third motor 27 drives the rotating shaft 24 to rotate, and the rotating shaft 24 drives the rotating frame 25 fixed thereto to rotate. The rotating frame 25 adjusts the position of the tension roller 26 on it so that the tension roller 26 always rolls and contacts the film belt 36, maintaining the tension of the film belt 36 during the hot stamping and cooling process, and ensuring the hot stamping accuracy.

[0084] When the film belt 36 is wound up, the arc plate 46 revolves through the clearance hole 35 of the fixed disc 20, and the arc-shaped partition plate on the outer side of the arc plate 46 rolls and abuts against the roller 34 on the third mounting base 28, causing the roller 34 to rotate; the roller 34 drives the connecting shaft 30 fixed to it to rotate, and the connecting shaft 30 drives the coaxially fixed drive wheel 32 to rotate; the drive wheel 32 drives the driven wheel 31 on the winding roller 29 to rotate through the transmission belt 33, and the driven wheel 31 drives the winding roller 29 to rotate, thereby winding up the cooled film belt 36.

[0085] After hot stamping is completed, turn off the second motor 8, the fourth motor 40 and the third motor 27, and start the first motor 4 in reverse so that the sliding seat 5 moves the cover plate 17 away from the fixed disc 20; start the electric push rod 12 so that the pressing block 13 retracts and disengages from the inner wall of the cover plate 17; finally, remove the hot stamped cover plate 17 to complete a complete hot stamping operation.

[0086] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cover laminator comprising a base (1), characterised in that: A fixing seat (18) is fixedly installed on the base (1), and a fixing disc (20) is fixedly installed on the fixing seat (18). A membrane strip (36) is wrapped around the circumferential end of the fixing disc (20). The fixed disc (20) has a circular cavity along the axial direction, and a cylindrical fixing block (39) is coaxially fixed in the circular cavity; a rotating cylinder (42) is rotatably sleeved on the fixing block (39), and multiple matching arc plates (46) are slidably installed on the outer wall of the rotating cylinder (42). Multiple arc-shaped plates (46) are arranged in a circle along the circumference of the rotating cylinder (42), and the ends of two adjacent arc-shaped plates (46) slide in contact; each arc-shaped plate (46) is fixedly provided with a heating plate (48) for hot stamping and a cooling plate (47) for cooling film belt (36) on its outer side. The fixed disk (20) has a first opening (37) for exposing the heating plate (48) and a second opening (38) for exposing the cooling plate (47) along the circumferential direction at its circumferential end; the first opening (37) and the second opening (38) are located on the same circumference at the circumferential end of the fixed disk (20). A transmission mechanism is installed between the fixed block (39) and the rotating cylinder (42) to drive the arc plate (46) to translate along the axial direction of the rotating cylinder (42) when the arc plate (46) passes between the first opening (37) and the second opening (38); The fixed block (39) is equipped with a power component that drives the rotating drum (42) to rotate. The fixed disc (20) is equipped with a winding mechanism for releasing and rewinding the film strip (36), which is driven by an arc plate (46). The transmission mechanism includes a transmission groove and a transmission shaft (45) arranged radially along the rotating cylinder (42); multiple guide grooves (49) are opened axially on the cylinder body of the rotating cylinder (42), the multiple guide grooves (49) are evenly distributed along the circumference of the rotating cylinder (42), and each guide groove (49) penetrates the cylinder body of the rotating cylinder (42) radially; multiple arc plates (46) correspond one-to-one with multiple guide grooves (49), and a transmission shaft (45) is fixedly arranged on the inner side of each arc plate (46); each transmission shaft (45) penetrates the guide groove (49) corresponding to the arc plate (46) and is limited and slidably engaged with the guide groove (49); the transmission groove is opened at the circumferential end of the fixed block (39) along the circumference of the fixed block (39), and each transmission shaft (45) is inserted into the transmission groove and is limited and slidably engaged with the transmission groove; The transmission groove includes a first arc-shaped groove (44), a second arc-shaped groove (51), and two spiral connecting grooves (50) with the same spiral direction, which are opened at the circumferential end of the fixed block (39). The two ends of the first arc-shaped groove (44) correspond one-to-one with the two ends of the second arc-shaped groove (51). A connecting groove (50) is provided between the two ends of the first arc-shaped groove (44) and the corresponding ends of the second arc-shaped groove (51). A connecting groove (50) is provided between the close ends of the first opening (37) and the far ends of the second opening (38). A sliding seat (5) is slidably mounted on the base (1), and a support frame (6) is fixedly mounted on the sliding seat (5); a rotating seat (7) is rotatably mounted on the support frame (6), and a fixing plate (9) is fixedly mounted on the rotating seat (7); a rotating disk (10) for placing a cover plate (17) is rotatably mounted on the fixing plate (9), and a clamp for holding and fixing the cover plate (17) is mounted on the rotating disk (10); a second motor (8) is fixedly mounted on the fixing plate (9), and the output shaft of the second motor (8) is coaxially fixedly connected to the rotating disk (10); a first driving component for driving the sliding seat (5) to slide closer to or away from the fixing seat (18) is mounted on the base (1), and a second driving component for driving the rotating seat (7) to rotate is mounted on the sliding seat (5).

2. A cover stamper as claimed in claim 1, wherein: The power assembly includes a gear (41) and an internal gear ring (43); a fourth motor (40) is fixedly installed inside the fixed block (39), and the gear (41) is fixedly sleeved on the output shaft of the fourth motor (40); the internal gear ring (43) is sleeved outside the fixed block (39) and coaxially fixed inside the rotating drum (42); the gear (41) and the internal gear ring (43) mesh with each other.

3. The cover laminating machine according to claim 1, characterized in that: The take-up and take-down mechanism includes a release roller (22), a take-up roller (29), and a tension roller (26) parallel to the central axis of the fixed disc (20); a first mounting base (21), a second mounting base (23), and a third mounting base (28) are fixedly arranged on the circumferential end of the fixed disc (20); the release roller (22) is rotatably mounted on the first mounting base (21), and the take-up roller (29) is rotatably mounted on the third mounting base (28); a rotating frame (25) is rotatably mounted on the second mounting base (23). The tension roller (26) is rotatably mounted on the rotating frame (25); a rotating shaft (24) parallel to the tension roller (26) is rotatably mounted on the second mounting base (23), and the rotating frame (25) is fixedly connected to the rotating shaft (24); a third motor (27) is fixedly mounted on the second mounting base (23), and the output shaft of the third motor (27) is coaxially fixedly connected to the rotating shaft (24); a linkage assembly for driving the winding roller (29) to rotate is mounted on the third mounting base (28), and the linkage assembly is driven by the arc plate (46).

4. A cover plate hot stamping machine according to claim 3, characterized in that: The linkage assembly includes a roller (34); a connecting shaft (30) is rotatably mounted on the third mounting base (28), the connecting shaft (30) being parallel to the take-up roller (29); the roller (34) is fixedly sleeved on the connecting shaft (30); the circumferential end of the fixed disc (20) is provided with a clearance hole (35) for the roller (34) to roll against the arc plate (46); the take-up roller (29) is coaxially fixedly connected to a driven wheel (31), and the connecting shaft (30) is coaxially fixedly connected to a driving wheel (32); the driving wheel (32) and the driven wheel (31) are drivenly sleeved in the same transmission belt (33).

5. A cover plate hot stamping machine according to claim 1, characterized in that: The clamp includes a clamping block (13); multiple electric push rods (12) are fixedly installed radially on the axial end of the rotating disk (10) away from the second motor (8), and the multiple electric push rods (12) are evenly distributed along the circumference of the rotating disk (10); the cover plate (17) is an annular plate, and a clamping block (13) for pressing against the inner wall of the cover plate (17) is fixedly provided on the telescopic shaft of each electric push rod (12).

6. A cover plate hot stamping machine according to claim 1, characterized in that: The first drive assembly includes a lead screw (3), which is rotatably mounted on the base (1) and faces the fixed seat (18); the lead screw (3) passes through the sliding seat (5) and is threadedly connected to the sliding seat (5), and the sliding seat (5) is in a limiting sliding fit with the base (1); a first motor (4) is fixedly mounted on the base (1), and the output shaft of the first motor (4) is coaxially fixedly connected to the lead screw (3).

7. A cover plate hot stamping machine according to claim 1, characterized in that: The second drive assembly includes a hydraulic cylinder (16); a second hinge seat (15) is fixedly disposed on the sliding seat (5), and a first hinge seat (14) is fixedly disposed on the fixed plate (9); the cylinder body of the hydraulic cylinder (16) is hinged to the second hinge seat (15), and the telescopic shaft of the hydraulic cylinder (16) is hinged to the first hinge seat (14).

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