CN212796260U - Thermal transfer printer - Google Patents

Abstract

The utility model relates to a thermal transfer prints technical field, in particular to thermal transfer printer. The utility model discloses a heat-transfer seal printer includes frame, printing element and sharp displacement mechanism, the frame has the horizontally and prints the mesa, one side of printing the mesa is the sticky tape entry, and the opposite side is the sticky tape export, printing element set up in print the mesa top and be close to its position, sharp displacement mechanism assemble in the frame, and with the printing element transmission is connected, be used for ordering about printing element follows print the mesa rectilinear movement between its both ends, thereby it is right print the sticky tape of printing mesa upper surface process. The advantages are that: structural design is reasonable, operation convenient to use, and the effectual current thermal transfer printer of having solved beats printer head and adopts fixed mounting to have the narrower problem of printing width.

Description

Thermal transfer printer

Technical Field

The utility model relates to a thermal transfer prints technical field, in particular to thermal transfer printer.

Background

The printing assembly of the existing thermal transfer printer generally comprises a printing head which is fixed on the printer, and the printing head is generally transversely arranged, i.e. the printing head is parallel to the width direction of the adhesive tape, so that the width of a finished product printed by the thermal transfer printer corresponds to the width of the printing head, i.e. the printed finished product is limited by the width of the printing head.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a heat-transfer seal printer is provided, the effectual defect of overcoming prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides a thermal transfer printer, includes the frame, printing element and straight line displacement mechanism, above-mentioned frame has the horizontally to print the mesa, and one side of above-mentioned printing mesa is the sticky tape entry, and the opposite side is the sticky tape export, and above-mentioned printing element sets up in above-mentioned printing mesa top near its position, and above-mentioned straight line displacement mechanism assembles in above-mentioned frame to be connected with above-mentioned printing element transmission, be used for ordering about above-mentioned printing element along above-mentioned printing mesa rectilinear movement between its both ends, thereby print the sticky tape that the mesa upper surface of the printing passed through to the aforesaid.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

The machine frame is provided with a machine frame, a rubber belt inlet and a rubber belt outlet, and the machine frame is provided with a rubber belt conveying mechanism which is assembled in the machine frame and used for conveying rubber belts in two directions between the rubber belt inlet and the rubber belt outlet.

Further, the adhesive tape conveying mechanism comprises a bidirectional conveying roller set and an adhesive tape pinch roller set, the bidirectional conveying roller set comprises a first driving device, a driving shaft and a conveying wheel, the driving shaft is horizontally assembled on the frame along the extending direction of the two ends of the printing table board and is rotatably arranged below the printing table board at a position corresponding to the adhesive tape outlet, the first driving device is in transmission connection with one end of the driving shaft and is used for driving the driving shaft to rotate around the axis of the driving shaft, a plurality of coaxial conveying wheels are distributed on the driving shaft at intervals along the axial direction of the driving shaft, notches corresponding to the conveying wheels one by one are formed in the printing table board, the upper parts of the conveying wheels protrude upwards from the corresponding notches, the adhesive tape pinch roller set comprises a connecting shaft, a second driving device, a swinging rod piece and a pinch roller, the connecting shaft is horizontally assembled on the frame along the extending direction of the two ends of the printing table board, the second driving device is arranged above the printing table board in a rotatable mode and corresponds to the position of the adhesive tape outlet, cams which correspond to the conveying wheels and the pressing wheels in a one-to-one mode are arranged on the connecting shaft, the second driving device is in transmission connection with one end of the connecting shaft and is used for driving the connecting shaft to swing around the central line of the connecting shaft, the swinging rod pieces are arranged above the conveying wheels in a one-to-one mode and are connected to the rack in a rotatable mode through supports which are connected with the swinging rod pieces in a rotatable mode, one end of each swinging rod piece extends to the position below the corresponding cam and is in contact with the cam, the pressing wheels are rotatably arranged at the other end of each swinging rod piece, a rebound part is further connected between each support and the swinging rod pieces, the second driving device is used for driving the connecting shaft to drive the cam to rotate, and therefore protruding portions of the cam slide through the other end of each swinging, when the protruding part of the cam slides along the surface of the swinging rod piece, one end of the swinging rod piece moves downwards, the other end of the swinging rod piece drives the pressing wheel to move upwards to be away from the conveying wheel, and after the protruding part of the cam slides through the swinging rod piece, the rebounding part drives one end of the swinging rod piece to move upwards to return, and the other end of the swinging rod piece drives the pressing wheel to move downwards to be close to the conveying wheel.

Further, the linear displacement mechanism comprises a roller screw transmission pair and a guide rail, a screw of the roller screw transmission pair is horizontally and rotatably arranged between two ends of the rack and is positioned above a position between the adhesive tape inlet and the adhesive tape outlet, the guide rail is horizontally arranged between two ends of the rack and is positioned on one side of the screw, the printing assembly is fixedly connected with a nut seat of the roller screw transmission pair and is in sliding connection with the guide rail, and a driving mechanism of the roller screw transmission pair can drive the screw to rotate so as to drive the nut seat and the printing assembly to move between two ends of the printing table board along the guide rail.

Further, the printing component comprises a shell, a ribbon box component, a printing head and a printing head lifting driving component, wherein the lower end and one side of the shell are open and arranged, and one side of the shell is open and faces the tape inlet, the ribbon box component comprises two ribbon boxes which are arranged at two ends of the inner side of the shell in parallel and at intervals, the lower parts of one sides of the two ribbon boxes close to the open side of the shell are connected into a whole through a connecting piece, ribbon rolls which horizontally extend along two sides of the two ribbon boxes are respectively arranged in the two ribbon boxes, a ribbon is wound on one of the two ribbon rolls, strip-shaped openings for the ribbon to pass through are arranged at the lower parts of one sides of the two ribbon boxes close to each other, the ribbon is drawn out from one of the two ribbon rolls and sequentially passes through the two strip-shaped openings to be wound on the other ribbon roll, and a ribbon collecting component and a ribbon releasing component which respectively correspond to the ribbon rolls of the, the ribbon collecting assembly and the ribbon releasing assembly extend into the corresponding ribbon boxes respectively and are in transmission connection with the corresponding ribbon coils, so that the two ribbon coils are driven to rotate to collect and release the ribbon, the printing head stretches over the ribbon section between the two strip-shaped openings, and the printing head lifting driving assembly is installed in the shell and is in transmission connection with the printing head and used for driving the printing head to move up and down to press the ribbon section or separate the ribbon section from the printing head.

Further, the print head lifting driving assembly comprises a fixing plate, a mounting plate, a rotary driving device and a swinging connecting rod assembly, wherein the fixing plate is vertically fixed on the top wall in the shell and positioned between the two ribbon cassettes and stretches across the upper part of the ribbon section, the mounting plate is arranged at one end of the fixing plate in parallel, the print head is arranged at the lower end of the mounting plate, two sides of one end, close to the mounting plate, of the fixing plate are respectively provided with a guide structure, two sides of the mounting plate are respectively in vertical sliding fit with the guide structures at two sides of one end of the fixing plate, the rotary driving device is assembled on the fixing plate, one end of the swinging connecting rod assembly is in transmission connection with the rotary driving device, the other end of the swinging connecting rod assembly is movably connected with the mounting plate, the, thereby driving the mounting plate and the printing head to move up and down relative to the guide structure.

Further, the swing connecting rod component comprises a U-shaped shifting fork, a swing rod and a connecting rod which are respectively arranged in a vertical plane, the swing rod is a U-shaped piece with an upward opening, one end of the fixing plate is rotatably connected with the upper part of one end of the fixing plate close to the mounting plate, the other end of the fixing plate is movably connected with the shifting fork through a pin shaft limited in the shifting fork, the closed end of the swing rod is matched with an arc chute arranged on the fixed plate in a sliding connection way, the upper end of the connecting rod is rotationally connected with the closed end of the swing rod, the lower end of the rotary driving device is movably connected with the mounting plate, the rotary driving device is in transmission connection with the shifting fork, the rotary driving device is used for driving the shifting fork to drive the swinging rod to swing around the rotating connection point of the swinging rod and the fixed plate, thereby driving the lower end of the swing rod to slide along the corresponding sliding groove, and further driving the connecting rod and the mounting plate to move up and down along the guide structure.

Furthermore, the lower end of the connecting rod is provided with an assembly hole, the mounting plate is provided with a positioning pin which is vertical to the mounting plate and penetrates through the assembly hole, and the lower end of the connecting rod is movably connected through the matching of the positioning pin and the assembly hole; the mounting plate is fixed with a T-shaped component corresponding to the lower end of the connecting rod at one end close to the fixing plate, the pointed end of the T-shaped component is downward and provided with the positioning pin, the lower end of the connecting rod is provided with a T-shaped connecting part, the connecting part is provided with the assembling hole, and elastic pieces are respectively connected between two ends of straight sections of the T-shaped component and the T-shaped connecting part.

Further, the color ribbon releasing assembly and the color ribbon retracting assembly have the same specification, and each of the color ribbon releasing assembly and the color ribbon retracting assembly includes a guide shaft, a motor, a synchronous belt, a primary belt wheel and a secondary belt wheel, wherein the side walls of the two sides of the color ribbon cassette are respectively provided with a color ribbon roll assembling port, two ends of the color ribbon roll respectively extend into the color ribbon roll assembling ports of the two sides of the color ribbon cassette, the guide shaft passes through the corresponding color ribbon roll, one end of the guide shaft is rotatably connected with the inner wall of the housing away from the opening side and is coaxially assembled with the secondary belt wheel at the end, one side of the secondary belt wheel close to the color ribbon roll is provided with a concave area, the inner wall of the concave area is provided with a butting assembly capable of moving along the axial direction of the concave area, the butting assembly is in transmission connection with one end of the corresponding color ribbon roll close to the butting assembly, the primary pulley is coaxially mounted on the driving shaft of the motor, the timing belt is wound around the primary pulley and the secondary pulley, and the color belt coil is fitted on the guide shaft.

The utility model has the advantages that: structural design is reasonable, operation convenient to use, and the effectual current thermal transfer printer of having solved beats printer head and adopts fixed mounting to have the narrower problem of printing width.

Drawings

Fig. 1 is a schematic structural diagram of a thermal transfer printer according to the present invention;

FIG. 2 is a schematic structural diagram of a thermal transfer printer according to the present invention;

FIG. 3 is an enlarged view of the portion A in FIG. 2;

fig. 4 is a schematic structural diagram of a thermal transfer printer according to a third embodiment of the present invention;

FIG. 5 is a schematic structural view of a swing link member in the thermal transfer printer of the present invention;

FIG. 6 is a schematic view of a printing assembly of the thermal transfer printer of the present invention;

FIG. 7 is a schematic view of a ribbon cartridge in a thermal transfer printer according to the present invention;

FIG. 8 is a structural matching diagram of the lifting mechanism and the print head of the thermal transfer printer according to the present invention;

fig. 9 is a schematic structural view of a lifting mechanism in the thermal transfer printer of the present invention;

FIG. 10 is a schematic view of the lifting mechanism of the thermal transfer printer of the present invention with the fixing plate removed;

fig. 11 is a schematic structural view of a ribbon feeding/receiving assembly of the thermal transfer printer of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a housing, 2, a ribbon cassette, 3, a print head, 4, a print head lifting drive assembly, 5, a ribbon segment, 7, a frame, 8, a printing assembly, 9, a linear displacement mechanism, 41, a fixing plate, 42, a mounting plate, 43, a rotary drive device, 44, a shift fork, 45, a swing rod, 46, a connecting rod, 47, a track, 48, a guide wheel, 49, an elastic member, 61, a guide shaft, 62, a motor, 63, a synchronous belt, 64, a secondary pulley, 65, a docking assembly, 66, a guide pin, 71, a printing table top, 97, a roller screw transmission pair, 98, a guide rail, 101, a first drive device, 102, a drive shaft, 103, a conveying wheel, 111, a connecting rod, 112, a second drive device, 113, a swing rod member, 114, a press wheel, 411, a sliding chute, 421, a positioning pin, 422, a T-shaped member, 461, a T-shaped connecting part, 651, a bayonet, a 1111, a cam, 1131, 1132. a second coupling shaft.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example (b): as shown in fig. 1 to 5, the thermal transfer printer of the present embodiment includes a frame 7, a printing assembly 8 and a linear displacement mechanism 9, wherein the frame 7 has a horizontal printing table 71, one side of the printing table is a tape inlet, and the other side is a tape outlet, the printing assembly 8 is disposed above the printing table 71 and close to the printing table 71, and the linear displacement mechanism 9 is assembled in the frame 7 and is in transmission connection with the printing assembly 8, and is configured to drive the printing assembly 8 to move linearly along the printing table 71 between two ends thereof, so as to print the tape passing through the upper surface of the printing table 71.

In the whole embodiment, the printing component 8 can be adjusted to transversely move to any position of the width of the adhesive tape below through the linear displacement mechanism 9, the printing flexibility is enhanced, the printing width is improved, the problem of limitation of the fixed printing width of the traditional thermal transfer printer is thoroughly solved, and the sequentially printed width is greatly improved.

As a preferred embodiment, the apparatus further comprises a tape feeding mechanism, which is mounted in the frame 7, for feeding the tape bidirectionally between the tape inlet and the tape outlet.

In this embodiment, the tape can be conveyed well and stably on the printing table 71 by the tape conveying mechanism to complete the continuous printing operation.

As a preferred embodiment, as shown in fig. 3, 4 and 5, the tape conveying mechanism includes a bidirectional conveying roller set and a tape pinch roller set, the bidirectional conveying roller set includes a first driving device 101, a driving shaft 102 and a conveying roller 103, the driving shaft 102 is horizontally mounted on the frame 7 along the extending direction of the two ends of the printing table 71 and is rotatably disposed below the printing table 71 at a position corresponding to the tape outlet, the first driving device 101 is in transmission connection with one end of the driving shaft 102 for driving the driving shaft 102 to rotate around the axis thereof, the driving shaft 102 is provided with a plurality of coaxial conveying rollers 103 at intervals along the axial direction thereof, the printing table 71 is provided with notches corresponding to the conveying rollers 103 one by one, the upper portions of the conveying rollers 103 protrude upwards to the corresponding notches, and the tape pinch roller set includes a connecting shaft 111, A second driving device 112, a swinging rod 113 and a pressing wheel 114, wherein the connecting shaft 111 is horizontally mounted on the frame 7 along the extending direction of the two ends of the printing table 71 and is rotatably disposed above the printing table 71 corresponding to the position of the adhesive tape outlet, the connecting shaft 111 is provided with cams 1111 corresponding to the conveying wheels 103 and the pressing wheel 114 one by one, the second driving device 112 is in transmission connection with one end of the connecting shaft 111 for driving the connecting shaft 111 to swing around the central line thereof, the swinging rod 113 is provided with a plurality of swinging rods 113 and is disposed above the plurality of conveying wheels 103 one by one, the swinging rod 113 is mounted on the frame 7 through a bracket rotatably connected with the swinging rod 113, one end of the swinging rod 113 extends to the lower part of the corresponding cam 1111 and is in contact with the cam 1111, and the other end of the swinging rod 113 is rotatably mounted with the pressing wheel 114, a resilient member is connected between the bracket and the pendulum member 113, the second driving device 112 is configured to drive the connecting shaft 111 to drive the cam 1111 to rotate, so that the protruding portion of the cam 1111 periodically slides over the other end of the pendulum member 113, and when the protruding portion of the cam 1111 slides along the surface of the pendulum member 113, one end of the pendulum member 113 moves downward, the other end drives the pressing wheel 114 to move upward and away from the conveying wheel 103, and when the protruding portion of the cam 1111 slides over the pendulum member 113, the resilient member drives one end of the pendulum member 113 to move upward and return, and the other end drives the pressing wheel 114 to move downward and approach the conveying wheel 103.

In this embodiment, during printing, the second driving device 112 drives the connecting shaft 111 and the cam 1111 to rotate, so that the swinging member 113 swings periodically, the pressing wheel 114 and the conveying wheel 103 are made to approach periodically and tighten the adhesive tape therebetween, and the conveying wheel 103 conveys the adhesive tape periodically to feed.

To be noted: the two-way conveying roller sets can be arranged in two groups and are respectively assembled with the frame 1.

It should be added that: as shown in fig. 4 and 5, the pendulum member 113 is rotatably connected to the support via a first coupling shaft 1131, the support is further connected to a second coupling shaft 1132 parallel to the first coupling shaft 1131, and the second coupling shaft 1132 is equipped with a torsion spring connected to an upper end of one end of the pendulum member 113, and the torsion spring constitutes a resilient member.

The first driving device 101 and the second driving device 101 both adopt a transmission assembly of a motor and a belt pulley, a main wheel is coaxially arranged on a driving shaft of the motor, the main wheel and an auxiliary wheel jointly surround the belt pulley, and the auxiliary wheel is respectively in transmission connection with the corresponding connecting shaft 111 or the driving shaft 102.

In a preferred embodiment, the linear displacement mechanism 9 includes a roller screw transmission pair 97 and a guide rail 98, the screw of the roller screw transmission pair 97 is horizontally and rotatably disposed between two ends of the frame 7 and above a position between the tape inlet and the tape outlet, the guide rail 98 is horizontally disposed between two ends of the frame 7 and on one side of the screw, the printing module 8 is fixedly connected to the nut holder of the roller screw transmission pair 97 and slidably connected to the guide rail 98, and the driving mechanism of the roller screw transmission pair 97 can rotate the screw to drive the nut holder and the printing module 8 to move along the guide rail 98 between two ends of the printing table 71.

In this embodiment, the linear displacement mechanism 9 adopts a conventional screw transmission pair, and the operation is stable and simple, and the printing assembly 8 can be effectively driven to move transversely to adjust the printing width on the adhesive tape surface.

The driving mechanism of the roller screw transmission pair 97 adopts a transmission assembly of a motor and a belt pulley, one end of a screw rod is coaxially connected with an auxiliary wheel, a driving shaft of the motor is coaxially provided with a main wheel, and the main wheel and the auxiliary wheel are surrounded on the belt pulley together.

Of course, the above-mentioned linear displacement mechanism 9 may also adopt other forms of linear displacement mechanisms 9, such as a telescopic device, an air cylinder, a hydraulic cylinder, an electric push rod, etc., as long as it can drive the printing component 8 to move stably and well for printing.

As a preferred embodiment, as shown in fig. 6 and 7, the printing assembly 8 includes a housing 1, a ribbon cassette assembly, a printing head 3 and a printing head lifting/lowering driving assembly 4, wherein the housing 1 is open at a lower end and one side thereof, and the one side thereof is open toward the tape inlet, the ribbon cassette assembly includes two ribbon cassettes 2 which are arranged at two ends of the inner side of the housing 1 in parallel and spaced manner, the two ribbon cassettes 2 are connected together through a connecting member at a lower portion of the side thereof close to the open side of the housing 1, ribbon reels which horizontally extend along both sides thereof are respectively installed in the two ribbon cassettes 2, and the ribbon is wound around one of the ribbon reels, a strip port through which the ribbon passes is provided at a lower portion of the side close to the two ribbon cassettes 2, the ribbon is drawn out from one of the ribbon reels, sequentially passes through the two strip ports, and is wound around the other ribbon reel, the inner wall of the other side of the shell 1 is provided with a color ribbon collecting assembly and a color ribbon releasing assembly which respectively correspond to the color ribbon rolls of the two color ribbon cassettes 2, the color ribbon collecting assembly and the color ribbon releasing assembly respectively extend into the corresponding color ribbon cassettes 2 and are in transmission connection with the corresponding color ribbon rolls so as to drive the two color ribbon rolls to rotate to collect/release the color ribbon, the printing head 3 spans the upper part of a color ribbon section 5 between the two strip-shaped openings, and the printing head lifting driving assembly 4 is arranged in the shell 1 and is in transmission connection with the printing head 3 and is used for driving the printing head 3 to move up and down to press the color ribbon section 5 or separate from each other.

In this embodiment, ribbon cartridge 2 and print head 3 integrated design in a casing 1, the occupation space is small, the cooperation is compact between the component, in the in-service use, the ribbon roll that will be convoluteed with the ribbon is connected with square ribbon subassembly, with another ribbon roll (another waits to convolute the ribbon) and receive the ribbon subassembly and be connected, in the printing process, print head lift drive assembly 4 drives print head 3 and moves down and pushes down ribbon section 5 between two ribbon cartridges 4 to the adhesive tape of below, it unreels to put the ribbon subassembly, receive the rolling of ribbon subassembly in step, can accomplish in the adhesive tape traction transportation process and print.

Of course, the printing assembly 8 may also be the printing assembly of other thermal transfer printers in the prior art, and the above embodiment is only one of the embodiments of the thermal transfer printer of the present invention, and should include, but not be limited to, the structural composition of the printing assembly 8.

As a preferred embodiment, as shown in fig. 8 and 9, the print head lifting driving assembly 4 includes a fixing plate 41, a mounting plate 42, a rotation driving device 43 and a swinging link assembly, the fixing plate 41 is vertically fixed on the inner top wall of the housing 1, and is located between the two ribbon cartridges 2 and crosses over the ribbon section 5, the mounting plate 42 is disposed at one end of the fixing plate 41 in parallel, the print head 3 is mounted at the lower end of the mounting plate 42, two sides of one end of the fixing plate 41 close to the mounting plate 42 are respectively provided with a guiding structure, two sides of the mounting plate 42 are respectively vertically slidably engaged with the guiding structures at two sides of one end of the fixing plate 41, the rotation driving device 43 is assembled on the fixing plate 41, one end of the swinging link assembly is in transmission connection with the rotation driving device 43, and the other end is movably connected with the mounting plate 42, the rotation driving device 43 is used to drive the swing link assembly to swing up and down, so as to drive the mounting plate 42 and the printing head 3 to move up and down relative to the guiding structure.

In this embodiment, the operation process of the print head lifting drive assembly 4 specifically includes: the rotary driving device 43 drives the swing link assembly to swing up and down around the connection point of the swing link assembly and the swing link assembly, and in the swinging process, the lower end of the swing link assembly can drive the mounting plate 42 to drive the printing head 3 to move up and down along the guide structure, so that the ribbon section 5 is pressed down (printed) or the ribbon section is moved upwards to separate (stop printing), the whole structure is simple, and the operation and the use are convenient.

Of course, the print head lifting/lowering driving assembly 4 may be a direct lifting/lowering driving member, such as: cylinders, electric push rods, etc.

More specifically, as shown in fig. 8, 9 and 10, the swing link assembly includes a U-shaped fork 44, a swing rod 45 and a link 46 respectively disposed in a vertical plane, the swing rod 45 is a U-shaped member with an upward opening, one end of the swing rod 45 is rotatably connected to an upper portion of one end of the fixing plate 41 close to the mounting plate 42, the other end of the swing rod is movably connected to the fork 44 through a pin limited inside the fork 44, a closed end of the swing rod 45 is slidably connected to and engaged with an arc-shaped chute 411 disposed on the fixing plate 41, an upper end of the link 46 is rotatably connected to a closed end of the swing rod 45, a lower end of the link is movably connected to the mounting plate 42, the rotation driving device 43 is drivingly connected to the fork 44, the rotation driving device 43 is configured to drive the fork 44 to swing the swing rod 45 around a rotation connection point of the swing rod and the fixing, thereby driving the lower end of the swing rod 45 to slide along the corresponding sliding slot 411, and further driving the connecting rod 46 and the mounting plate 42 to move up and down along the guiding structure.

In this embodiment, the operation process specifically includes: the rotary driving device 43 drives the shifting fork 44 to swing, the shifting fork 44 drives the swing rod 45 to swing up and down around a connection point of the swing rod 45 and the fixing plate 41, the swing rod 45 drives the connecting rod 46 to move up and down in the swing process, and therefore the mounting plate 42 in sliding fit with the guide structure and the printing head 3 are driven to move up and down.

As a preferred embodiment, as shown in fig. 10, the lower end of the connecting rod 46 is provided with a mounting hole, the mounting plate 42 is provided with a positioning pin 421 perpendicular thereto and penetrating through the mounting hole, and the lower end of the connecting rod 46 is movably connected by the matching of the positioning pin 421 and the mounting hole; a T-shaped member 422 corresponding to the lower end of the connecting rod 46 is fixed to one end of the mounting plate 42 close to the fixing plate 41, the positioning pin 421 is provided such that the tip of the T-shaped member 422 faces downward, a T-shaped connecting portion 461 provided with the mounting hole is provided at the lower end of the connecting rod 46, and elastic members are connected between both ends of the straight sections of the T-shaped member 422 and the T-shaped connecting portion 461, respectively.

In this embodiment, the lower end of the connecting rod 46 and the mounting plate 42 are matched with each other through the pin shaft and the hole, the matching between the structures is compact, the design of the T-shaped member 422 and the T-shaped connecting portion 461 is beneficial to the good assembly of the elastic piece 49, and the design of the elastic piece 49 can play a certain buffering role, so that the mechanical jamming can be effectively prevented, and the good operation of the swing link assembly is ensured.

The elastic member 49 is a conventional spring, and is easy to assemble and easy to use.

In a preferred embodiment, the rotation driving device 43 is a motor, which is mounted on the upper portion of the end of the fixing plate 41 away from the mounting plate 42, and the driving shaft of the motor passes through the fixing plate 41 and is connected and fixed to the closed end of the fork, and the rotation driving device 43 is installed reasonably, and is stable and convenient to use.

In a preferred embodiment, the guiding structure is two vertically arranged rails 47, two sides of one end of the mounting plate 42 close to the fixing plate 41 are respectively and rotatably provided with a plurality of guiding wheels 48 which are vertically spaced, and the guiding wheels 48 are respectively located at one side where the two rails 47 are close to each other and are respectively in rolling fit with the corresponding side of the rail 47.

In this embodiment, the guide wheels 48 on both sides of the mounting plate 42 are designed, and the guide wheels 48 are matched with the rails 47 in a rolling manner, so that the mounting plate 42 can be ensured to move up and down along the correct direction, the shaking is not easy to occur, and meanwhile, the friction force of the contact between the guide wheels and the rails can be reduced through the rolling fit, and the energy consumption of the relative movement time is further reduced.

Preferably, the print head 3 is a bar-shaped member spanning the ribbon section 5, and the printing amplitude is moderate, effectively cooperating with the ribbon section 5.

As a preferred embodiment, as shown in fig. 11, the ink ribbon feeding module and the ink ribbon collecting module have the same specification, and each of them includes a guide shaft 61, a motor 62, a timing belt 63, a primary pulley and a secondary pulley 64, wherein the side walls of the two sides of the ink ribbon cassette 2 are respectively provided with a ribbon roll mounting opening, the two ends of the ribbon roll respectively extend into the ribbon roll mounting openings of the two sides of the ink ribbon cassette 2, the guide shaft 61 passes through the corresponding ribbon roll, one end of the guide shaft 61 is rotatably connected with the inner wall of the housing 1 away from the open side, the secondary pulley 64 is coaxially mounted at the end, one side of the secondary pulley 64 close to the ribbon roll is provided with a concave area, the inner wall of the concave area is provided with a docking assembly 65 capable of moving along the axial direction thereof, the docking assembly 65 is drivingly connected with the corresponding end of the ribbon roll close to the docking assembly, the motor 62 is mounted on the inner wall of the ribbon roll away from the ribbon roll, and is located below the secondary pulley 64, the primary pulley is coaxially mounted on the driving shaft of the motor 62, the timing belt 63 is wound around the primary pulley and the secondary pulley 64, and the ribbon coil is wound around the guide shaft 61.

In this embodiment, the ribbon roll is put into corresponding leading axle 61 by ribbon roll assembly opening cover in the installation, and be connected through butt joint subassembly and the transmission of corresponding subband wheel 64 detachably, realize the rotation of ribbon roll and receive/unreel, make the ribbon roll in ribbon cartridge 2 can accomplish the operation of receiving/unreeling of two ribbon rolls under the drive of butt joint subassembly 65 and corresponding subband wheel 64, specifically, motor 62 drives the primary pulley operation, can order about subband wheel 64 and leading axle 61 through hold-in range 63 rotatory, thereby it rotates to drive butt joint subassembly 65 and the ribbon roll that corresponds through subband wheel 64, realize unreeling or the operation of rolling, whole subassembly operation is more stable.

More specifically, the recessed area has a circular groove-shaped structure, the docking assembly 65 is a circular ring-shaped sheet-shaped member, the bottom wall of the recessed area is provided with a plurality of guide pins 66 extending in the axial direction of the guide shaft 61, the docking assembly 65 is provided with hole sites corresponding to the guide pins 66 one to one, the guide pins 66 pass through the corresponding hole sites, an elastic member is connected between the bottom wall of the recessed area and the docking assembly 65, the inner ring of the docking assembly 65 is provided with a plurality of bayonets 651 at intervals along the circumferential direction thereof, and the outer periphery of one end of the ribbon roll near the docking assembly 65 is provided with a plurality of bayonets 651 in snap-fit engagement therewith.

The docking assembly 65 is designed reasonably, so that the ribbon roll and the secondary pulley 64 can be matched in a tight transmission connection manner, and the secondary pulley 64 can rotate while driving the ribbon roll to rotate for winding/unwinding.

It should be noted that: a stopper detachably attached to the end of the guide shaft 61 should be provided at the ribbon roll mounting port to prevent the ribbon roll from coming off the end of the guide shaft 61.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A thermal transfer printer, characterized by: including frame (7), printing element (8) and straight line displacement mechanism (9), frame (7) have horizontally print mesa (71), one side of printing mesa is the sticky tape entry, and the opposite side is the sticky tape export, printing element (8) set up in print mesa (71) top is close to its position, straight line displacement mechanism (9) assemble in frame (7), and with printing element (8) transmission is connected, be used for ordering about printing element (8) are followed print mesa (71) rectilinear movement between its both ends, thereby right the sticky tape that the upper surface of print mesa (71) passed through prints.

2. The thermal transfer printer of claim 1, wherein: the machine also comprises a rubber belt conveying mechanism which is assembled in the machine frame (7) and is used for conveying rubber belts in two directions between the rubber belt inlet and the rubber belt outlet.

3. A thermal transfer printer according to claim 2, wherein: the adhesive tape conveying mechanism comprises a bidirectional conveying roller set and an adhesive tape pinch roller set, the bidirectional conveying roller set comprises a first driving device (101), a driving shaft (102) and a conveying wheel (103), the driving shaft (102) is horizontally assembled on the rack (7) along the extending direction of two ends of the printing table board (71) and is rotatably arranged at the position below the printing table board (71) corresponding to an adhesive tape outlet, the first driving device (101) is in transmission connection with one end of the driving shaft (102) and is used for driving the driving shaft (102) to rotate around the axis of the driving shaft, a plurality of coaxial conveying wheels (103) are distributed on the driving shaft (102) at intervals along the axial direction of the driving shaft, notches which are in one-to-one correspondence with the conveying wheels (103) are formed on the printing table board (71), and the upper parts of the conveying wheels (103) protrude upwards from the corresponding notches, the adhesive tape pinch roller set comprises a connecting shaft (111), a second driving device (112), a swing rod piece (113) and a pinch roller (114), wherein the connecting shaft (111) is horizontally assembled on the rack (7) along the extending direction of two ends of a printing table board (71) and is rotatably arranged above the printing table board (71) to correspond to the position of an adhesive tape outlet, cams (1111) which correspond to the conveying wheels (103) and the pinch roller (114) one by one respectively are assembled on the connecting shaft (111), the second driving device (112) is in transmission connection with one end of the connecting shaft (111) and is used for driving the connecting shaft (111) to swing around the central line of the connecting shaft, a plurality of swing rod pieces (113) are arranged above the conveying wheels (103) in a one-to-one correspondence manner, the swing rod pieces (113) are respectively assembled on the rack (7) through supports which are connected with the swing rod pieces in a rotating manner, one end of the pendulum rod piece (113) extends to the lower part of the corresponding cam (1111) and is in contact with the cam (1111), the other end of the pendulum rod piece is rotatably provided with the pressing wheel (114), a rebound component is further connected between the bracket and the pendulum rod piece (113), the second driving device (112) is used for driving the connecting shaft (111) to drive the cam (1111) to rotate, so that the protruding part of the cam (1111) slides through the other end of the pendulum rod piece (113) periodically, when the protruding part of the cam (1111) slides along the surface of the pendulum rod piece (113), one end of the pendulum rod piece (113) moves downwards, the other end drives the pressing wheel (114) to move upwards to be far away from the conveying wheel (103), and when the protruding part of the cam (1111) slides through the pendulum rod piece (113), the rebound component drives one end of the pendulum rod piece (113) to move upwards to return, the other end drives the pressing wheel (114) to move downwards to be close to the conveying wheel (103).

4. The thermal transfer printer of claim 1, wherein: the linear displacement mechanism (9) comprises a roller screw transmission pair (97) and a guide rail (98), a screw of the roller screw transmission pair (97) is horizontally and rotatably arranged between two ends of the rack (7) and is positioned above a position between the adhesive tape inlet and the adhesive tape outlet, the guide rail (98) is horizontally arranged between two ends of the rack (7) and is positioned on one side of the screw, the printing assembly (8) is fixedly connected with a nut seat of the roller screw transmission pair (97) and is in sliding connection with the guide rail (98), and a driving mechanism of the roller screw transmission pair (97) can drive the screw to rotate, so that the nut seat and the printing assembly (8) are driven to move between two ends of the printing table top (71) along the guide rail (98).

5. The thermal transfer printer according to any one of claims 1 to 4, wherein: the printing component (8) comprises a shell (1), a ribbon box component, a printing head (3) and a printing head lifting driving component (4), wherein the lower end and one side of the shell (1) are arranged in an open mode, one side of the shell is open and faces towards the adhesive tape inlet, the ribbon box component comprises two ribbon boxes (2) which are arranged in parallel and at intervals and are arranged at two ends of the inner side of the shell (1), the two ribbon boxes (2) are connected into a whole through a connecting piece and close to the lower part of one side of the open side of the shell (1), ribbon rolls which horizontally extend along two sides of the two ribbon boxes are respectively arranged in the two ribbon boxes (2), the ribbon is wound on one of the ribbon rolls, strip-shaped openings for the ribbon to pass through are formed in the lower part of one side, close to each other, of the two ribbon boxes (2), the ribbon is pulled out by one of the ribbon rolls and, the ribbon winding and unwinding device is characterized in that the ribbon winding and unwinding device is wound on the other ribbon roll, a ribbon winding assembly and a ribbon unwinding assembly which correspond to the two ribbon rolls of the ribbon cartridge (2) are arranged on the inner wall of the other side of the shell (1), the ribbon winding assembly and the ribbon unwinding assembly extend into the corresponding ribbon cartridge (2) respectively and are in transmission connection with the corresponding ribbon rolls, so that the two ribbon rolls are driven to rotate to wind/unwind a ribbon, the printing head (3) stretches over a ribbon section (5) between the two strip-shaped openings, and the printing head lifting driving assembly (4) is installed in the shell (1) and is in transmission connection with the printing head (3) and is used for driving the printing head (3) to move up and down to press the ribbon section (5) or separate from each other.

6. The thermal transfer printer of claim 5, wherein: the printing head lifting driving assembly (4) comprises a fixing plate (41), a mounting plate (42), a rotary driving device (43) and a swinging connecting rod assembly, wherein the fixing plate (41) is vertically fixed on the top wall in the shell (1), is positioned between the two ribbon cassettes (2) and stretches across the upper part of the ribbon section (5), the mounting plate (42) is arranged at one end of the fixing plate (41) in parallel, the printing head (3) is arranged at the lower end of the mounting plate (42), two sides of one end, close to the mounting plate (42), of the fixing plate (41) are respectively provided with a guide structure, two sides of the mounting plate (42) are respectively in vertical sliding fit with the guide structures at two sides of one end of the fixing plate (41), the rotary driving device (43) is assembled on the fixing plate (41), and one end of the swinging connecting rod assembly is in transmission connection with the rotary driving device (43), the other end of the swinging connecting rod component is movably connected with the mounting plate (42), and the rotating driving device (43) is used for driving the swinging connecting rod component to swing up and down, so that the mounting plate (42) and the printing head (3) are driven to move up and down relative to the guide structure.

7. The thermal transfer printer of claim 6, wherein: the swing link assembly comprises a U-shaped shifting fork (44), a swing rod (45) and a connecting rod (46) which are respectively arranged in a vertical plane, the swing rod (45) is a U-shaped piece with an upward opening, one end of the swing rod is rotatably connected with the upper part of one end, close to the mounting plate (42), of the fixing plate (41), the other end of the swing rod is rotatably connected with the shifting fork (44) through a pin shaft limited in the shifting fork (44), the closed end of the swing rod (45) is matched with an arc-shaped sliding groove (411) arranged on the fixing plate (41) in a sliding connection mode, the upper end of the connecting rod (46) is rotatably connected with the closed end of the swing rod (45), the lower end of the connecting rod is movably connected with the mounting plate (42), a rotary driving device (43) is in transmission connection with the shifting fork (44), the rotary driving device (43) is used for driving the shifting fork (44) to drive the swing rod (45) to swing around the rotary, thereby driving the lower end of the swinging rod (45) to slide along the corresponding sliding groove (411), and further driving the connecting rod (46) and the mounting plate (42) to move up and down along the guide structure.

8. The thermal transfer printer of claim 7, wherein: the lower end of the connecting rod (46) is provided with an assembly hole, the mounting plate (42) is provided with a positioning pin (421) which is perpendicular to the mounting plate and penetrates through the assembly hole, and the lower end of the connecting rod (46) is movably connected through the matching of the positioning pin (421) and the assembly hole; the mounting panel (42) are close to the one end of fixed plate (41) fixed with T shape component (422) that connecting rod (46) lower extreme corresponds, and the pointed end of this T shape component (422) is down, and be equipped with locating pin (421), the lower extreme of connecting rod (46) is equipped with T shape connecting portion (461), is equipped with on this connecting portion the pilot hole, be connected with elastic component (49) between the both ends of the straight section of T shape component (422) and T shape connecting portion (461) the two respectively.

9. The thermal transfer printer of claim 5, wherein: the ribbon releasing component and the ribbon collecting component are consistent in specification and respectively comprise a guide shaft (61), a motor (62), a synchronous belt (63), a main belt wheel and a secondary belt wheel (64), ribbon roll assembling ports are respectively arranged on the side walls of two sides of the ribbon cartridge (2), two ends of the ribbon roll respectively extend to two sides of the ribbon cartridge (2) in the ribbon roll assembling ports, the guide shaft (61) penetrates through the corresponding ribbon roll, one end of the guide shaft (61) is rotationally connected with the inner wall of the shell (1) far away from the open side, the secondary belt wheel (64) is coaxially assembled at the end, a concave area is arranged on one side, close to the ribbon roll, of the secondary belt wheel (64), a butt joint component (65) capable of axially moving is arranged on the inner wall of the concave area, and the butt joint component (65) is detachably connected with the corresponding end, close to the ribbon roll, the motor (62) is mounted on the inner wall of one side, away from the ribbon roll assembly opening, of the ribbon cartridge (2) and located below the secondary pulley (64), the primary pulley is coaxially assembled on a driving shaft of the motor (62), the synchronous belt (63) surrounds the primary pulley and the secondary pulley (64), and the ribbon roll is sleeved on the guide shaft (61).

10. The thermal transfer printer of claim 9, wherein: the depressed area is circular slot shape structure, butt joint subassembly (65) are the annular flaky component of circle, be equipped with a plurality of edges on the diapire of depressed area uide pin (66) of the axial extension of aiming axis (61), be equipped with on butt joint subassembly (65) with the hole site of uide pin (66) one-to-one, uide pin (66) pass the hole site that corresponds, the diapire of depressed area with be connected with the elastic component between butt joint subassembly (65), a plurality of bayonet sockets (651) have been seted up along its circumference interval to the inner ring of butt joint subassembly (65), the ribbon rolls are close to be equipped with on one end periphery of butt joint subassembly (65) with a plurality of bayonet socket (651) joint complex fixture block.

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