Film thermal printing device and method

Abstract

The invention relates to the technical field of film processing, in particular to a film thermal printing device which comprises a connecting base, the end face of the connecting base is connected with a film roller through a support, and the end face of the connecting base is connected with an adjustable driving structure. An adjustable driving structure is arranged on the end face of the connecting base, and an adjustable edge pressing structure is connected to the position, located on one side of the adjustable driving structure, of the end face of the connecting base. Therefore, the distance between the driving roller and the driven roller can be adjusted through the transmission structure by means of a driving motor and an adjusting rotating rod in the adjustable driving structure, a film can be tightly clamped between the driving roller and the driven roller, and the situation that the film slips during transmission, data printed on the film are overlapped, and the printing effect is affected is avoided; and meanwhile, the film can be conveniently installed, and films with different thicknesses can be clamped and driven for use.

Description

Technical Field

[0001] The invention relates to the technical field of film processing, in particular to a film thermal printing device and method. Background Art

[0002] Thermal printing technology applies heat to thermal paper through the semiconductor heating element on the print head, causing a chemical reaction in the thermal coating on the paper to print the image. It is currently widely used in gas station pumps, information kiosks, voucher printers, on-demand printing of transportation and products, and heart monitors.

[0003] At present, the film thermal printing device is used to print films that are cut in advance. When the printed data cannot cover the entire film, it will cause film waste. At the same time, the film may get stuck during printing. At this time, the film needs to be pulled out manually, which will cause damage to the device. At the same time, the film will not be transported in time during film printing, resulting in overlapping data printed on the film, affecting the printing effect. At the same time, the printing device can only print on films of the same thickness, which affects the range of film printing. In view of the above problems, it is necessary to provide a film thermal printing device. Summary of the invention

[0004] The present invention provides a film thermal printing device to solve the above problems.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A film thermal printing device comprises a connecting base, a film roller is connected to the end surface of the connecting base via a bracket, an adjustable driving structure is connected to the end surface of the connecting base, an adjustable edge pressing structure is connected to the end surface of the connecting base and located on one side of the adjustable driving structure, a shearing structure is connected to the end surface of the connecting base and located on the other side of the adjustable driving structure, a thermal printing head is connected to the side wall of the shearing structure, and a controller is connected to the end surface of the connecting base via a bracket;

[0007] The adjustable edge pressing structure includes a connecting shell, the connecting shell is connected to the end face of the connecting base, the top of the connecting shell inner cavity is connected to the electric telescopic rod through a connecting seat, the driving end of the electric telescopic rod is connected to the movable connecting plate through the connecting seat, the four corners of the movable connecting plate are connected to a limited sliding rod, and the two ends of the limited sliding rod are connected to the upper and lower end faces of the inner cavity of the connecting shell, and the side wall of the movable connecting plate is rotatably connected to multiple groups of driving pull rods through the connecting seat. The other end of the driving pull rod is rotatably connected to a connecting pull rod through a rotating shaft, and one end of the connecting pull rod is rotatably connected to the side wall of the inner cavity of the connecting shell through the connecting seat. The other end of the connecting pull rod is rotatably connected to the connecting pull rod through the rotating shaft, and the side wall of the connecting bent rod is rotatably connected to a fixed connecting plate through the rotating shaft, the fixed connecting plate is connected to the end face of the connecting shell, and the other end of the connecting bent rod is connected to the connecting connecting plate, and the bottom of the connecting connecting plate is symmetrically connected to a spring seat, and the bottom of the spring seat and the end face of the connecting shell are connected with a pressure plate.

[0008] As a preferred solution of the present invention, the adjustable driving structure includes a connecting box body, which is connected to the end face of the connecting base, and the side wall of the connecting box body is connected to a driving motor through a connecting seat, the driving end of the driving motor is located in the inner cavity of the connecting box body and is connected to a driving roller through a coupling, the other end of the driving roller is connected to a driving gear, the side wall of the driving gear is meshed with a rotating gear, the side wall of the rotating gear is meshed with a transmission gear, the side wall of the transmission gear is meshed with a driven gear, the center of the rotating gear is rotatably connected to a rotating shaft through a bearing, and the center of the transmission gear is rotatably connected to a transmission shaft through a bearing.

[0009] As a preferred solution of the present invention, a rotating rod is connected to the side walls of the rotating shaft and the transmission shaft, and a driven rotating shaft is connected at the center of the driven gear, and a driven rotating rod is connected to the side walls of the transmission shaft and the driven rotating shaft and located on one side of the rotating rod, and a driven roller is connected at the center of the driven gear and located above the driving roller, and a moving slider is symmetrically connected to the side wall of the driven roller shaft, and the end face of the moving slider is connected to a fixed connecting plate, and the end face of the fixed connecting plate is connected to a lifting vertical rod, and the outer wall of the lifting vertical rod and the end face of the connecting box are connected to the fixed box, the side wall of the fixed box is connected to an adjusting rod, one end of the adjusting rod is connected to a rotating knob, and the cylindrical surface of the adjusting rod is connected to the side wall of the fixed box, and an axis fixer is connected, and an adjusting gear is connected on the side wall of the adjusting rod and located in the inner cavity of the fixed box, and a fixed rack is meshed and connected on the side wall of the adjusting gear, and the fixed rack is connected to the side wall of the lifting vertical rod.

[0010] As a preferred solution of the present invention, the shearing structure includes a fixed frame, which is connected to the end face of the connecting base, and a fixed slide rod is symmetrically connected to the fixed frame, and a driving slide rod and a connecting slide rod are connected to the side wall of the fixed slide rod, a buffer spring is connected to the bottom of the connecting slide rod and the side wall of the fixed slide rod, and a connecting slide rod is connected to the bottom of the buffer spring and the side wall of the fixed slide rod, an electric push rod is connected between the driving slide rod and the fixed frame, and a driving rotating plate and a connecting rotating plate are symmetrically rotatably connected to the side walls of the driving slide rod and the connecting slide rod through a rotating axis, and the other ends of the driving rotating plate and the connecting rotating plate are rotatably connected to the connecting rotating plate through a rotating axis, and a connecting rotating rod is connected to the side wall of the connecting rotating plate, and cutting blades are connected to the opposite end faces of the driving rotating plate and the connecting slide rod.

[0011] As a preferred solution of the present invention, the thermal print head is connected to the controller via a wire and the connection method is electrical connection, the drive motor is connected to the controller via a wire and the connection method is electrical connection, and the drive roller is connected to the side wall of the inner cavity of the connection box via a bearing seat, wherein the connection method of the drive roller and the bearing seat is rotational connection;

[0012] One end of the rotating shaft is connected to the side wall of the connecting box through a bearing, wherein the rotating shaft and the bearing seat are connected in a rotating manner, and the rotating shaft and the rotating rod are rotationally connected through a bearing.

[0013] As a preferred solution of the present invention, the transmission shaft and the rotating rod are rotatably connected via a bearing, the transmission shaft and the driven rod are rotatably connected via a bearing, and the driven shaft and the driven rod are rotatably connected via a bearing;

[0014] The driven roller is connected to the side wall of the movable slider through a bearing seat, wherein the connection between the driven roller and the bearing seat is a rotational connection, and a slide groove is provided on the side wall of the connecting box body corresponding to the movable slider, wherein the connection between the movable slider and the slide groove is a sliding connection.

[0015] As a preferred solution of the present invention, a slide groove is provided on the fixed box body and corresponds to the lifting rod, wherein the lifting rod and the slide groove are connected in a sliding manner, and the adjusting rotating rod is connected to the side wall of the fixed box body through a bearing seat, wherein the adjusting rotating rod and the bearing seat are connected in a rotating manner;

[0016] The electric telescopic rod is connected to the controller through a wire and the connection method is electrical connection. The movable connecting plate is provided with a connecting hole corresponding to the limiting slide rod, wherein the connection method of the limiting slide rod and the connecting hole is a sliding connection.

[0017] As a preferred solution of the present invention, four groups of driving rods are arranged, wherein the four groups of driving rods are symmetrically connected to the side walls of the movable connecting plate through connecting seats in pairs, the connecting curved rods are of L-shaped structure, wherein the lengths of the two groups of connecting curved rods on the right are greater than the lengths of the two groups of connecting curved rods on the left, and the edge pressing plate is of shuttle-shaped structure.

[0018] As a preferred solution of the present invention, connecting holes are provided on the driving skateboard, the connecting skateboard and the connecting skateboard and correspond to the fixed slide rod, wherein the fixed slide rod is connected to the connecting hole by a sliding connection, the electric push rod is connected to the controller by a wire and the connection method is an electrical connection, and the connecting rotating rod is connected to the side wall of the fixed frame through a bearing seat, wherein the connecting rotating rod is connected to the bearing seat by a rotating connection.

[0019] A method for using a film thermal printing device, the specific steps are as follows:

[0020] Step 1: The film on the film roller is passed through the bottom of the edge pressing plate in the adjustable edge pressing structure, between the driving roller and the driven roller in the adjustable driving structure, between the driving rotating plate and the cutting blade connected to the slide plate in the shearing structure, and into the thermal print head in sequence;

[0021] Step 2: Control the electric telescopic rod through the controller. When the driving end of the electric telescopic rod moves upward, it drives the moving connecting plate to move upward. When the moving connecting plate moves upward, the connecting rod is pulled outward through multiple sets of driving rods. When the connecting rod rotates, the other end of the connecting rod is pulled upward to rotate. When the connecting rod rotates, the other end of the connecting curved rod is driven to rotate downward, and then the other end of the connecting curved rod is connected to the connecting plate, the spring seat and the edge pressing plate to press the film.

[0022] Step 3: Manually turn on the switch on the shaft holder, then manually turn the adjusting lever, which drives the adjusting gear to rotate. When the adjusting gear rotates, it drives the fixed rack and the fixed connecting plate at the bottom of the lifting rod to move downward. When the fixed connecting plate moves downward, it drives the driven roller on the moving slider to move downward in the slide groove on the connecting box, so that the film is tightly clamped between the driving roller and the driven roller.

[0023] At the same time, during the movement of the driven roller, the driving gear, the rotating gear, the transmission gear and the driven gear are kept in meshing state under the action of the rotational connection between the rotating shaft, the transmission shaft and the rotating rod, and the rotational connection between the transmission shaft, the driven shaft and the rotating rod;

[0024] Step 4: Control the driving motor through the controller. When the driving end of the driving motor rotates, the driving roller is driven to rotate, the driving roller drives the driving gear to rotate, the driving gear drives the rotating gear to rotate, the rotating gear drives the transmission gear to rotate, the transmission gear drives the driven gear to rotate, the driven gear drives the driven roller to rotate, and then the film is transported forward;

[0025] Step 5: Control the operation of the thermal print head through the controller to print the film;

[0026] Step six: Control the electric push rod through the controller. When the driving end of the electric push rod moves upward, it drives the driving slide and the cutting blade to move upward. When the driving slide moves upward, it drives the driving turn plates on both sides of the driving slide to rotate. When the driving turn plate rotates, it drives the connecting turn plate to rotate through the connecting turn plate and the connecting turn rod. When the connecting turn plate rotates, it drives the connecting slide, the buffer spring, the connecting slide and the cutting blade to move downward, and then cuts the film.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] In the present invention, an adjustable driving structure is provided in the film thermal printing device, so that the driving motor and the adjusting rotating rod in the adjustable driving structure can be used to adjust the distance between the driving roller and the driven roller through the transmission structure, so that the film can be tightly clamped between the driving roller and the driven roller, avoiding slipping during film transmission, resulting in overlapping of data printed on the film, affecting the printing effect, and facilitating the installation of the film. At the same time, the film can be clamped and driven for use with different thicknesses.

[0029] In the present invention, an adjustable edge pressing structure is provided in the film thermal printing device, so that the edge of the film is pressed on the workbench by using the electric telescopic rod in the adjustable edge pressing structure through the transmission structure, thereby preventing the film from curling during transmission, causing the printing device to jam and reduce the service life of the printing device, and at the same time facilitating the installation of the film.

[0030] In the present invention, a shearing structure is arranged in the film thermal printing device, so that the film is automatically sheared by utilizing the electric push rod in the shearing structure through the transmission structure, so that the film shearing work can be carried out in time, and the waste of film is eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the positive side structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the adjustable driving structure of the present invention;

[0033] Figure 3 for Figure 2Schematic diagram of some structures;

[0034] Figure 4 It is a structural schematic diagram of the adjustable edge pressing structure of the present invention;

[0035] Figure 5 for Figure 4 Schematic diagram of some structures;

[0036] Figure 6 It is a structural schematic diagram of the shear structure of the present invention;

[0037] Figure 7 for Figure 6 Schematic diagram of part of the structure.

[0038] In the figure: 1, connecting base; 2, film roller; 3, adjustable driving structure; 4, adjustable edge pressing structure; 5, shearing structure; 6, thermal print head; 7, controller; 301, connecting box; 302, driving motor; 303, driving roller; 304, driving gear; 305, rotating gear; 306, transmission gear; 307, driven gear; 308, rotating shaft; 309, transmission shaft; 310, rotating rod; 311, driven shaft; 312, driven rod; 313, driven roller; 314, moving slider; 315, fixed connecting plate; 316, lifting pole; 317, fixed box; 318, adjusting rod; 319, rotating knob; 320, shaft holder ; 321, adjusting gear; 322, fixing rack; 401, connecting shell; 402, electric telescopic rod; 403, moving connecting plate; 404, limiting slide; 405, driving pull rod; 406, connecting pull rod; 407, connecting pull rod; 408, connecting curved rod; 409, fixed connecting plate; 410, connecting connecting plate; 411, spring seat; 412, edge pressing plate; 501, fixed frame; 502, fixed slide; 503, driving slide; 504, connecting slide; 505, buffer spring; 506, connecting slide; 507, electric push rod; 508, driving rotating plate; 509, connecting rotating plate; 510, connecting rotating plate; 511, connecting rotating rod; 512, cutting blade. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] For example, please refer to Figure 1-Figure 7 , the present invention provides a technical solution:

[0041] A film thermal printing device comprises a connecting base 1, a film roller 2 is connected to the end surface of the connecting base 1 through a bracket, an adjustable driving structure 3 is connected to the end surface of the connecting base 1, an adjustable edge pressing structure 4 is connected to the end surface of the connecting base 1 and located on one side of the adjustable driving structure 3, a shearing structure 5 is connected to the end surface of the connecting base 1 and located on the other side of the adjustable driving structure 3, a thermal printing head 6 is connected to the side wall of the shearing structure 5, and a controller 7 is connected to the end surface of the connecting base 1 through a bracket;

[0042] Furthermore, the thermal print head 6 is connected to the controller 7 via a wire and the connection is electrical, and the operation of the thermal print head 6 can be controlled by the controller 7;

[0043] In this embodiment, reference Figure 1 , Figure 2 and Figure 3 The adjustable driving structure 3 includes a connecting box 301, which is connected to the end surface of the connecting base 1. The side wall of the connecting box 301 is connected to a driving motor 302 through a connecting seat. The driving end of the driving motor 302 is located in the inner cavity of the connecting box 301 and is connected to a driving roller 303 through a coupling. The other end of the driving roller 303 is connected to a driving gear 304. The side wall of the driving gear 304 is meshed with a rotating gear 305. The side wall of the rotating gear 305 is The transmission gear 306 is meshedly connected, and a driven gear 307 is meshedly connected on the side wall of the transmission gear 306. A rotating shaft 308 is rotatably connected to the center of the rotating gear 305 through a bearing. A transmission shaft 309 is rotatably connected to the center of the transmission gear 306 through a bearing. A rotating rod 310 is connected to the side walls of the rotating shaft 308 and the transmission shaft 309. A driven shaft 311 is connected to the center of the driven gear 307. The side walls of the transmission shaft 309 and the driven shaft 311 are parallel. A driven rotating rod 312 is connected to one side of the rotating rotating rod 310, a driven roller 313 is connected to the center of the driven gear 307 and above the driving roller 303, a moving slider 314 is symmetrically connected to the side wall of the rotating shaft of the driven roller 313, a fixed connecting plate 315 is connected to the end surface of the moving slider 314, a lifting rod 316 is connected to the end surface of the fixed connecting plate 315, and a fixed box 316 is connected to the outer wall of the lifting rod 316 and the end surface of the connecting box 301. 7. An adjusting rod 318 is connected to the side wall of the fixed box 317, one end of which is connected to a rotating knob 319, an axis holder 320 is connected to the cylindrical surface of the adjusting rod 318 located on the side wall of the fixed box 317, an adjusting gear 321 is connected to the side wall of the adjusting rod 318 and located in the inner cavity of the fixed box 317, a fixed rack 322 is meshed and connected to the side wall of the adjusting gear 321, and the fixed rack 322 is connected to the side wall of the lifting pole 316;

[0044] Based on the above structure and the connection relationship of the above structure, the driving motor 302 is controlled by the controller 7. When the driving end of the driving motor 302 rotates, the driving roller 303, the driving gear 304, the rotating gear 305, the transmission gear 306, the driven gear 307 and the driven roller 313 are driven to rotate in sequence, so as to transport the film forward. The switch on the shaft holder 320 is turned on, and the adjusting lever 318 is manually rotated. The adjusting lever 318 drives the adjusting gear 321 to rotate. When the adjusting gear 321 rotates, the fixed rack 322 and the lifting rod 313 are driven to rotate. 16. The fixed connecting plate 315, the movable slider 314 and the driven roller 313 move to adjust the distance between the driving roller 303 and the driven roller 313. During the movement of the driven roller 313, the driving gear 304, the rotating gear 305, the transmission gear 306 and the driven gear 307 are kept in meshing state under the action of the rotating shaft 308 and the transmission shaft 309 being connected with the rotating rod 310, and the transmission shaft 309 and the driven shaft 311 being connected with the rotating rod 310. Therefore, when the driving roller 303 rotates, the driven roller 313 can be driven to rotate in the opposite direction.

[0045] Furthermore, the drive motor 302 is connected to the controller 7 via a wire and the connection is electrical, and the operation of the drive motor 302 can be controlled by the controller 7;

[0046] Furthermore, the driving roller 303 is connected to the side wall of the inner cavity of the connecting box 301 through a bearing seat, wherein the driving roller 303 and the bearing seat are connected in a rotational manner, which can ensure that the driving roller 303 can rotate during operation, and one end of the rotating shaft 308 is connected to the side wall of the connecting box 301 through a bearing, wherein the rotating shaft 308 and the bearing seat are connected in a rotational manner, the rotating shaft 308 and the rotating rod 310 are rotationally connected through a bearing, the transmission shaft 309 and the rotating rod 310 are rotationally connected through a bearing, the transmission shaft 309 and the driven rod 312 are rotationally connected through a bearing, and the driven shaft 311 and the driven rod 312 are rotationally connected through a bearing, which can ensure that the driven roller 313 can rotate after adjustment. , can rotate smoothly, the driven roller 313 is connected to the side wall of the movable slider 314 through the bearing seat, wherein the connection mode of the driven roller 313 and the bearing seat is a rotation connection, which can ensure that the driven roller 313 can rotate smoothly when in use, and a slide groove is provided on the side wall of the connecting box 301 and corresponds to the movable slider 314, wherein the connection mode of the movable slider 314 and the slide groove is a sliding connection, and a slide groove is provided on the fixed box 317 and corresponds to the lifting vertical rod 316, wherein the connection mode of the lifting vertical rod 316 and the slide groove is a sliding connection, and the adjusting rotating rod 318 is connected to the side wall of the fixed box 317 through the bearing seat, wherein the connection mode of the adjusting rotating rod 318 and the bearing seat is a rotation connection, which can ensure that the driven roller 313 can be adjusted smoothly;

[0047] In this embodiment, reference Figure 1 , Figure 4 and Figure 5The adjustable edge pressing structure 4 includes a connecting shell 401, which is connected to the end surface of the connecting base 1. The top of the inner cavity of the connecting shell 401 is connected to an electric telescopic rod 402 through a connecting seat. The driving end of the electric telescopic rod 402 is connected to a movable connecting plate 403 through a connecting seat. The four corners of the movable connecting plate 403 are connected to limited sliding rods 404. The two ends of the limited sliding rod 404 are connected to the upper and lower end surfaces of the inner cavity of the connecting shell 401. A plurality of driving pull rods 405 are rotatably connected to the side wall of the movable connecting plate 403 through a connecting seat. The other end of the driving pull rod 405 is rotatably connected to a connecting pull rod 406 through a rotating shaft. The connecting pull rod 40 One end of the connecting rod 406 is rotatably connected to the side wall of the inner cavity of the connecting shell 401 through a connecting seat, the other end of the connecting rod 406 is rotatably connected to the connecting rod 407 through a rotating shaft, the other end of the connecting rod 407 is rotatably connected to the connecting bent rod 408 through the rotating shaft, the side wall of the connecting bent rod 408 is rotatably connected to a fixed connecting plate 409 through a rotating shaft, the fixed connecting plate 409 is connected to the end surface of the connecting shell 401, the other end of the connecting bent rod 408 is connected to a connecting connecting plate 410, the bottom of the connecting connecting plate 410 is symmetrically connected to a spring seat 411, and the bottom of the spring seat 411 and located on the end surface of the connecting shell 401 is connected to a pressure plate 412;

[0048] Based on the above structure and the connection relationship of the above structure, the electric telescopic rod 402 is controlled by the controller 7. When the driving end of the electric telescopic rod 402 moves upward, the movable connecting plate 403 is driven to move upward. When the movable connecting plate 403 moves upward, the connecting rod 406 is pulled outward by multiple sets of driving rods 405. When the connecting rod 406 rotates, the other end of the connecting rod 407 is pulled to rotate upward. When the connecting rod 407 rotates, the other end of the connecting bent rod 408 is driven to rotate downward. Then, the other end of the connecting bent rod 408 is connected to the connecting plate 410, the spring seat 411 and the edge pressing plate 412 to press the edge of the film.

[0049] Furthermore, the electric telescopic rod 402 is connected to the controller 7 via a wire and the connection is electrical, and the operation of the electric telescopic rod 402 can be controlled by the controller 7;

[0050] Furthermore, a connection hole is provided on the movable connecting plate 403 and corresponds to the limit slide bar 404, wherein the connection mode of the limit slide bar 404 and the connection hole is a sliding connection, and when the adjustable edge pressing structure 4 is in operation, the movable connecting plate 403 can be limited, and four groups of driving pull rods 405 are provided, wherein the four groups of driving pull rods 405 are symmetrically connected to the side wall of the movable connecting plate 403 through the connecting seat in pairs, and the connecting curved rod 408 is an L-shaped structure, wherein the length of the two right groups of connecting curved rods 408 is greater than the length of the two left groups of connecting curved rods 408, and when the film is edge pressed, the edge pressing position can be not on the same straight line, so that the range of edge pressing is wider, and the edge pressing plate 412 is a shuttle-shaped structure;

[0051] In this embodiment, reference Figure 1 , Figure 6 and Figure 7 The shear structure 5 includes a fixed frame 501, which is connected to the end surface of the connecting base 1. The fixed frame 501 is symmetrically connected to a fixed slide bar 502. The side wall of the fixed slide bar 502 is connected to a driving slide plate 503 and a connecting slide plate 504. The bottom of the connecting slide plate 504 and the side wall of the fixed slide bar 502 are connected to a buffer spring 505. The bottom of the buffer spring 505 and the side wall of the fixed slide bar 502 are connected to a connecting slide plate 506. The driving slide plate 5 An electric push rod 507 is connected between 03 and the fixed frame 501, and a driving rotating plate 508 and a connecting rotating plate 509 are symmetrically connected to the side walls of the driving slide 503 and the connecting slide 504 through a rotating axis, and the other ends of the driving rotating plate 508 and the connecting rotating plate 509 are rotatably connected to a connecting rotating plate 510 through a rotating axis, and a connecting rotating rod 511 is connected to the side wall of the connecting rotating plate 510, and cutting blades 512 are connected to the opposite end surfaces of the driving rotating plate 508 and the connecting slide 506;

[0052] Based on the above structure and the connection relationship of the above structure, the controller 7 controls the electric push rod 507. When the driving end of the electric push rod 507 moves upward, the driving slide 503 and the cutting blade 512 are driven to move upward. When the driving slide 503 moves upward, the driving rotating plate 508 is driven to rotate. When the driving rotating plate 508 rotates, the connecting rotating plate 509 is driven to rotate through the connecting rotating plate 510 and the connecting rotating rod 511. When the connecting rotating plate 509 rotates, the connecting slide 504, the connecting slide 506 and the cutting blade 512 are driven to move downward, and then the film is cut.

[0053] Furthermore, the electric push rod 507 is connected to the controller 7 via a wire and the connection is electrical, and the operation of the electric push rod 507 can be controlled by the controller 7;

[0054] Furthermore, connecting holes are provided on the driving slide 503, the connecting slide 504 and the connecting slide 506 and correspond to the fixed slide bar 502, wherein the fixed slide bar 502 is connected to the connecting holes in a sliding manner. When the shear structure 5 is running, the driving slide 503, the connecting slide 504 and the connecting slide 506 can slide smoothly on the side wall of the fixed slide bar 502, and the connecting rotating rod 511 is connected to the side wall of the fixed frame 501 through a bearing seat, wherein the connecting rotating rod 511 is connected to the bearing seat in a rotating manner.

[0055] The working process of the present invention is as follows: when using the film thermal printing device, firstly, the device is connected to a power source so that the device is in a working state, and the specific steps are as follows:

[0056] Step 1: The film on the film roller 2 is passed through the bottom of the edge pressing plate 412 in the adjustable edge pressing structure 4, between the driving roller 303 and the driven roller 313 in the adjustable driving structure 3, between the driving rotating plate 508 and the cutting blade 512 connected to the slide plate 506 in the shearing structure 5, and into the thermal print head 6 in sequence;

[0057] Step 2: Control the electric telescopic rod 402 through the controller 7. When the driving end of the electric telescopic rod 402 moves upward, the moving connecting plate 403 is driven to move upward. When the moving connecting plate 403 moves upward, the connecting rod 406 is pulled outward through multiple sets of driving rods 405. When the connecting rod 406 rotates, the other end of the connecting rod 407 is pulled to rotate upward. When the connecting rod 407 rotates, the other end of the connecting curved rod 408 is driven to rotate downward. Then, the other end of the connecting curved rod 408 is connected to the connecting plate 410, the spring seat 411 and the edge pressing plate 412 to press the film.

[0058] Step 3: Manually turn on the switch on the shaft holder 320, then manually rotate the adjusting rod 318, the adjusting rod 318 drives the adjusting gear 321 to rotate, when the adjusting gear 321 rotates, it drives the fixed rack 322 and the fixed connecting plate 315 at the bottom of the lifting rod 316 to move downward, when the fixed connecting plate 315 moves downward, it drives the driven roller 313 on the moving slider 314 to move downward in the slide groove on the connecting box 301, so that the film is tightly clamped between the driving roller 303 and the driven roller 313;

[0059] At the same time, during the movement of the driven roller 313, the driving gear 304, the rotating gear 305, the transmission gear 306 and the driven gear 307 are kept in meshing state under the action of the rotation connection between the rotating shaft 308, the transmission shaft 309 and the rotating rod 310, and the rotation connection between the transmission shaft 309, the driven shaft 311 and the rotating rod 310;

[0060] Step 4: The driving motor 302 is controlled by the controller 7. When the driving end of the driving motor 302 rotates, the driving roller 303 is driven to rotate, the driving roller 303 drives the driving gear 304 to rotate, the driving gear 304 drives the rotating gear 305 to rotate, the rotating gear 305 drives the transmission gear 306 to rotate, the transmission gear 306 drives the driven gear 307 to rotate, the driven gear 307 drives the driven roller 313 to rotate, and then the film is transported forward;

[0061] Step 5: Control the operation of the thermal print head 6 through the controller 7 to print the film;

[0062] Step six: Control the electric push rod 507 through the controller 7. When the driving end of the electric push rod 507 moves upward, it drives the driving slide 503 and the cutting blade 512 to move upward. When the driving slide 503 moves upward, it drives the driving rotating plates 508 on both sides of the driving slide 503 to rotate. When the driving rotating plate 508 rotates, it drives the connecting rotating plate 509 to rotate through the connecting rotating plate 510 and the connecting rotating rod 511. When the connecting rotating plate 509 rotates, it drives the connecting slide 504, the buffer spring 505, the connecting slide 506 and the cutting blade 512 to move downward, and then cuts the film.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film thermal printing device, comprising a connecting base (1), characterized in that: A film roller (2) is connected to the end surface of the connecting base (1) via a bracket, an adjustable driving structure (3) is connected to the end surface of the connecting base (1), an adjustable edge pressing structure (4) is connected to the end surface of the connecting base (1) and located on one side of the adjustable driving structure (3), a shearing structure (5) is connected to the end surface of the connecting base (1) and located on the other side of the adjustable driving structure (3), a thermal print head (6) is connected to the side wall of the shearing structure (5), and a controller (7) is connected to the end surface of the connecting base (1) via a bracket; The adjustable edge pressing structure (4) comprises a connecting shell (401), wherein the connecting shell (401) is connected to the end face of the connecting base (1), the top of the inner cavity of the connecting shell (401) is connected to an electric telescopic rod (402) via a connecting seat, the driving end of the electric telescopic rod (402) is connected to a movable connecting plate (403) via a connecting seat, the four corners of the movable connecting plate (403) are connected to limit slide bars (404), the two ends of the limit slide bars (404) are connected to the upper and lower end faces of the inner cavity of the connecting shell (401), a plurality of driving pull rods (405) are rotatably connected to the side wall of the movable connecting plate (403) via a connecting seat, the other end of the driving pull rod (405) is rotatably connected to a connecting pull rod (406) via a rotating shaft, and the connecting pull rod (406) is connected to the movable connecting plate (403) via a connecting seat. One end of the connecting rod (406) is rotatably connected to the side wall of the inner cavity of the connecting shell (401) through a connecting seat, the other end of the connecting rod (406) is rotatably connected to the connecting rod (407) through a rotating shaft, the other end of the connecting rod (407) is rotatably connected to the connecting bent rod (408) through the rotating shaft, the side wall of the connecting bent rod (408) is rotatably connected to a fixed connecting plate (409) through a rotating shaft, the fixed connecting plate (409) is connected to the end face of the connecting shell (401), the other end of the connecting bent rod (408) is connected to a connecting connecting plate (410), the bottom of the connecting connecting plate (410) is symmetrically connected to a spring seat (411), the bottom of the spring seat (411) and located on the end face of the connecting shell (401) is connected to a pressure plate (412).

2. A film thermal printing device according to claim 1, characterized in that: The adjustable driving structure (3) comprises a connecting box (301), wherein the connecting box (301) is connected to the end surface of the connecting base (1), a driving motor (302) is connected to the side wall of the connecting box (301) via a connecting seat, a driving end of the driving motor (302) is located in the inner cavity of the connecting box (301) and is connected to a driving roller (303) via a coupling, the other end of the driving roller (303) is connected to a driving gear (304), a rotating gear (305) is meshedly connected to the side wall of the driving gear (304), a transmission gear (306) is meshedly connected to the side wall of the rotating gear (305), a driven gear (307) is meshedly connected to the side wall of the transmission gear (306), a rotating shaft (308) is rotatably connected to the center of the rotating gear (305) via a bearing, and a transmission shaft (309) is rotatably connected to the center of the transmission gear (306) via a bearing.

3. A film thermal printing device according to claim 2, characterized in that: A rotating rod (310) is connected to the side walls of the rotating shaft (308) and the transmission shaft (309); a driven shaft (311) is connected to the center of the driven gear (307); a driven shaft (312) is connected to the side walls of the transmission shaft (309) and the driven shaft (311) and located on one side of the rotating rod (310); a driven roller (313) is connected to the center of the driven gear (307) and located above the driving roller (303); a moving slider (314) is symmetrically connected to the side wall of the rotating shaft of the driven roller (313); a fixed connecting plate (315) is connected to the end surface of the moving slider (314); a lifting rod (316) is connected to the end surface of the fixed connecting plate (315); ), a fixed box (317) is connected on the outer wall of the lifting rod (316) and located on the end surface of the connecting box (301), an adjusting rotating rod (318) is connected on the side wall of the fixed box (317), one end of the adjusting rotating rod (318) is connected to a rotating knob (319), an axis fixer (320) is connected on the cylindrical surface of the adjusting rotating rod (318) and located on the side wall of the fixed box (317), an adjusting gear (321) is connected on the side wall of the adjusting rotating rod (318) and located in the inner cavity of the fixed box (317), a fixed rack (322) is meshed and connected on the side wall of the adjusting gear (321), and the fixed rack (322) is connected to the side wall of the lifting rod (316).

4. A film thermal printing device according to claim 3, characterized in that: The shear structure (5) comprises a fixed frame (501), wherein the fixed frame (501) is connected to the end surface of the connecting base (1), a fixed slide bar (502) is symmetrically connected to the fixed frame (501), a driving slide bar (503) and a connecting slide bar (504) are connected to the side wall of the fixed slide bar (502), a buffer spring (505) is connected to the bottom of the connecting slide bar (504) and located on the side wall of the fixed slide bar (502), a connecting slide bar (506) is connected to the bottom of the buffer spring (505) and located on the side wall of the fixed slide bar (502), and the driving slide bar (503) and the connecting slide bar (504) are connected to the side wall of the fixed slide bar (502). An electric push rod (507) is connected between the plate (503) and the fixed frame (501); a driving rotating plate (508) and a connecting rotating plate (509) are symmetrically connected to each other on the side walls of the driving slide plate (503) and the connecting slide plate (504) via a rotation axis; the other ends of the driving rotating plate (508) and the connecting rotating plate (509) are rotatably connected to a connecting rotating plate (510) via a rotation axis; a connecting rotating rod (511) is connected to the side wall of the connecting rotating plate (510); and cutting blades (512) are connected to the opposite end surfaces of the driving rotating plate (508) and the connecting slide plate (506).

5. A film thermal printing device according to claim 4, characterized in that: The thermal print head (6) is connected to the controller (7) via a wire and the connection method is electrical connection, the drive motor (302) is connected to the controller (7) via a wire and the connection method is electrical connection, and the drive roller (303) is connected to the side wall of the inner cavity of the connection box (301) via a bearing seat, wherein the connection method of the drive roller (303) and the bearing seat is a rotational connection; One end of the rotating shaft (308) is connected to the side wall of the connecting box (301) via a bearing, wherein the rotating shaft (308) is connected to the bearing seat in a rotating manner, and the rotating shaft (308) is rotationally connected to the rotating rod (310) via a bearing.

6. A film thermal printing device according to claim 4, characterized in that: The transmission shaft (309) and the rotating rod (310) are rotationally connected via a bearing, the transmission shaft (309) and the driven rod (312) are rotationally connected via a bearing, and the driven shaft (311) and the driven rod (312) are rotationally connected via a bearing; The driven roller (313) is connected to the side wall of the movable slider (314) via a bearing seat, wherein the driven roller (313) and the bearing seat are connected in a rotational manner, and a slide groove is provided on the side wall of the connection box (301) corresponding to the movable slider (314), wherein the movable slider (314) and the slide groove are connected in a sliding manner.

7. A film thermal printing device according to claim 4, characterized in that: A slide groove is provided on the fixed box (317) and corresponds to the lifting rod (316), wherein the lifting rod (316) is connected to the slide groove in a sliding manner, and the adjusting rotating rod (318) is connected to the side wall of the fixed box (317) through a bearing seat, wherein the adjusting rotating rod (318) is connected to the bearing seat in a rotating manner; The electric telescopic rod (402) is connected to the controller (7) via a wire and the connection method is electrical connection. The movable connecting plate (403) is provided with a connecting hole corresponding to the limiting slide bar (404), wherein the connection method between the limiting slide bar (404) and the connecting hole is a sliding connection.

8. A film thermal printing device according to claim 4, characterized in that: The driving rods (405) are provided in four groups, wherein the four groups of driving rods (405) are symmetrically connected to the side wall of the movable connecting plate (403) through a connecting seat in pairs, and the connecting curved rods (408) are of L-shaped structure, wherein the lengths of the two right groups of connecting curved rods (408) are greater than the lengths of the two left groups of connecting curved rods (408), and the edge pressing plate (412) is of a shuttle-shaped structure.

9. A film thermal printing device according to claim 4, characterized in that: The driving slide plate (503), the connecting slide plate (504) and the connecting slide plate (506) are provided with connecting holes corresponding to the fixed slide bar (502), wherein the fixed slide bar (502) is connected to the connecting holes in a sliding manner, the electric push rod (507) is connected to the controller (7) via a wire and the connection method is an electrical connection, and the connecting rotating rod (511) is connected to the side wall of the fixed frame (501) via a bearing seat, wherein the connecting rotating rod (511) is connected to the bearing seat in a rotating manner.

10. A method for using a film thermal printing device according to any one of claims 4 to 9, characterized in that: The steps are as follows: Step 1: The film on the film roller (2) is sequentially passed through the bottom of the edge pressing plate (412) in the adjustable edge pressing structure (4), between the driving roller (303) and the driven roller (313) in the adjustable driving structure (3), between the driving rotating plate (508) and the cutting blade (512) connected to the sliding plate (506) in the shearing structure (5), and into the thermal printing head (6); Step 2: Control the electric telescopic rod (402) through the controller (7), when the driving end of the electric telescopic rod (402) moves upward, it drives the movable connecting plate (403) to move upward, when the movable connecting plate (403) moves upward, it pulls the connecting rod (406) to rotate outward through multiple sets of driving rods (405), when the connecting rod (406) rotates, it pulls the other end of the connecting rod (407) to rotate upward, when the connecting rod (407) rotates, it drives the other end of the connecting curved rod (408) to rotate downward, and then the other end of the connecting curved rod (408) connects the connecting plate (410), the spring seat (411) and the edge pressing plate (412) to press the film; Step 3: manually turn on the switch on the shaft holder (320), then manually rotate the adjusting lever (318), the adjusting lever (318) drives the adjusting gear (321) to rotate, when the adjusting gear (321) rotates, it drives the fixed rack (322) and the fixed connecting plate (315) at the bottom of the lifting rod (316) to move downward, when the fixed connecting plate (315) moves downward, it drives the driven roller (313) on the moving slider (314) to move downward in the slide groove on the connecting box (301), so that the film is tightly clamped between the driving roller (303) and the driven roller (313); At the same time, during the movement of the driven roller (313), the rotational connection between the rotating shaft (308), the transmission shaft (309) and the rotating rod (310), and the rotational connection between the transmission shaft (309), the driven shaft (311) and the rotating rod (310) are maintained, so that the driving gear (304), the rotating gear (305), the transmission gear (306) and the driven gear (307) are kept in a meshing state; Step 4: The driving motor (302) is controlled by the controller (7). When the driving end of the driving motor (302) rotates, the driving roller (303) is driven to rotate, the driving roller (303) drives the driving gear (304) to rotate, the driving gear (304) drives the rotating gear (305) to rotate, the rotating gear (305) drives the transmission gear (306) to rotate, the transmission gear (306) drives the driven gear (307) to rotate, the driven gear (307) drives the driven roller (313) to rotate, and the film is transported forward; Step 5: Controlling the operation of the thermal print head (6) through the controller (7) to print the film; Step 6: The electric push rod (507) is controlled by the controller (7). When the driving end of the electric push rod (507) moves upward, the driving slide plate (503) and the cutting blade (512) are driven to move upward. When the driving slide plate (503) moves upward, the driving rotating plates (508) on both sides of the driving slide plate (503) are driven to rotate. When the driving rotating plates (508) rotate, the connecting rotating plates (509) are driven to rotate through the connecting rotating plates (510) and the connecting rotating rods (511). When the connecting rotating plates (509) rotate, the connecting slide plate (504), the buffer spring (505), the connecting slide plate (506) and the cutting blade (512) are driven to move downward, and then the film is cut.

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