A tape pressing device for a thermal transfer printer and a printer

Abstract

The present invention provides a tape pressing device for a thermal transfer printer and a printer, wherein the tape pressing device comprises: a frame, a printing assembly arranged on the frame, a clamping and conveying assembly for clamping or releasing a tape and capable of conveying the tape, and a tape pressing assembly for clamping or releasing the tape, wherein the clamping and conveying assembly and the tape pressing assembly are both arranged on the frame, and the tape pressing assembly and the clamping and conveying assembly are arranged correspondingly. The tape is clamped and fixed by the tape pressing assembly, and then the tape is clamped and conveyed by the clamping and conveying assembly, so that the tape between the tape pressing assembly and the clamping and conveying assembly is tightened, so that the tape between the tape pressing assembly and the clamping and conveying assembly is tightened to eliminate the protrusions and depressions thereon, thereby improving the printing accuracy of the thermal transfer printer.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, and in particular to a tape pressing device for a thermal transfer printer and a printer. Background Art

[0002] The existing thermal transfer printer includes a frame, a printing component, and a clamping and conveying component for clamping and conveying the tape. The clamping and conveying component is located at the tape output side relative to the printing component. During the printing process, the clamping and conveying component can clamp the tape and fix the tape at the tape output side, thereby preventing the tape from moving over a large range during the printing process. However, the tape is released from the tape reel and the tape itself has certain internal stress, so the local position of the tape has protrusions and depressions. Since the tape between the tape reel and the clamping and conveying component is not tightened during the printing process, these protrusions and depressions are not eliminated, which in turn causes the thermal transfer printer to be unable to accurately print at the target position during the printing process, thereby reducing the printing accuracy of the thermal transfer printer. The existing thermal transfer printer has the problem of low printing accuracy. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a tape pressing device for a thermal transfer printer and a printer in view of the deficiencies in the prior art.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A tape pressing device for a thermal transfer printer, comprising: a frame, a printing component arranged on the frame, a clamping and conveying component for clamping or releasing the tape and capable of conveying the tape, and a tape pressing component for clamping or releasing the tape, the clamping and conveying component and the tape pressing component are both arranged on the frame, and the tape pressing component and the clamping and conveying component are arranged correspondingly.

[0005] The beneficial effects of the present invention are as follows: the adhesive tape is clamped and fixed by the adhesive tape pressing assembly, and then the adhesive tape is clamped and conveyed by the adhesive tape clamping and conveying assembly, so that the adhesive tape between the adhesive tape pressing assembly and the adhesive tape clamping and conveying assembly is tightened, and then after the adhesive tape is clamped and fixed by the adhesive tape clamping and conveying assembly, the printing assembly is used to print, so that the adhesive tape between the adhesive tape pressing assembly and the adhesive tape clamping and conveying assembly is tightened to eliminate the protrusions and depressions thereon, so that the thermal transfer printer can print more accurately at the target position during the printing process, thereby improving the printing accuracy of the thermal transfer printer.

[0006] Further, the printing assembly is movably arranged on the frame, the printing assembly is arranged between the pressing tape assembly and the clamping and conveying assembly, and the tape between the pressing tape assembly and the clamping and conveying assembly is located on the movement track of the printing assembly.

[0007] The beneficial effect of adopting the above further scheme is: the tape is clamped and fixed by the tape pressing assembly, and then the tape is clamped and conveyed by the clamping and conveying assembly, so that the tape between the tape pressing assembly and the clamping and conveying assembly is tightened, and then after the tape is clamped and fixed by the clamping and conveying assembly, the printing assembly is used to print, so that the tape between the tape pressing assembly and the clamping and conveying assembly is tightened to eliminate the protrusions and depressions thereon, so that the thermal transfer printer can print at the target position more accurately during the printing process, thereby improving the printing accuracy of the thermal transfer printer.

[0008] Furthermore, the tape pressing assembly includes: a fixed support plate and a pressure plate, wherein the fixed support plate is arranged on the frame, the fixed support plate is used to support the tape on the tape input side of the printing assembly, the pressure plate is movably arranged on the fixed support plate so as to press or release the tape between the fixed support plate and the pressure plate, and a gap is arranged between the pressure plate and the fixed support plate for conveying the tape.

[0009] The beneficial effect of adopting the above further scheme is: when the pressing plate is in the pressing position, the pressing plate contacts the fixed support plate and clamps the tape between the fixed pressing plate and the fixed support plate; when the pressing plate is in the lifting position, the pressing plate is separated from the fixed support plate, and the tape between the pressing plate and the fixed support plate can be clamped and conveyed forward or backward by the clamping and conveying assembly.

[0010] Further, the pressure tape assembly also includes: a first bracket, a pivot frame for installing a pressure plate, a first driving shaft for driving the pivot frame, a lifting and pressing cam for driving the pivot frame to move up and down, a first motor for driving the first driving shaft to rotate, and a reset spring for applying tension to the pivot frame, the first bracket is installed at the bottom of the fixed support plate, the first driving shaft is rotatably arranged on the first bracket, the lifting and pressing cam is sleeved on the first driving shaft, the pivot frame is pivotally installed on the first bracket through the pivot shaft so as to switch between a pressing position and a lifting position, the lifting and pressing cam abuts against the bottom of the pivot frame so as to drive the pivot frame to switch between the pressing position and the lifting position, the pressure plate is connected to the pivot frame, a mounting hole for mounting the pressure plate is provided on the fixed support plate, and the pressure plate is exposed on the top of the fixed support plate through the mounting hole; the first motor is arranged on the first bracket, the first driving shaft is transmission-connected to the first motor, and the two ends of the reset spring are connected to the first bracket and the pivot frame in sequence so as to bias the pivot frame to the pressing position.

[0011] The beneficial effect of adopting the above further scheme is that the pivot frame is pivotally mounted on the first bracket through the pivot shaft so as to switch between the pressing position and the lifting position, the lifting cam is connected to the first drive shaft in a transmission manner, and the cam working surface of the lifting cam abuts against the pivot frame so as to drive the pivot frame to switch between the pressing position and the lifting position through its own rotation. When the pivot frame is in the pressing position, the pressure plate contacts the fixed support plate to clamp the tape between the fixed pressure plate and the fixed support plate; when the pivot frame is in the lifting position, the pressure plate is separated from the fixed support plate, and the tape between the pressure plate and the fixed support plate can be clamped and conveyed forward or backward by the clamping and conveying assembly. The two ends of the reset spring are connected to the pivot frame and the first bracket one by one so as to apply a biasing force biased to the pressing position to the pivot frame. When the pivot frame is in the downward position, the pressure plate contacts the fixed support plate and clamps the tape between the fixed pressure plate and the fixed support plate; when the pivot frame is in the raised position, the pressure plate is separated from the fixed support plate, and the tape between the pressure plate and the fixed support plate can be clamped and conveyed forward or backward by the clamping and conveying assembly.

[0012] Furthermore, the adhesive tape assembly further comprises: a buffer pad for buffering the adhesive tape, wherein the buffer pad is arranged on the surface of the pressing plate facing the fixed support plate.

[0013] The beneficial effect of adopting the above further solution is that the buffer pad can be made of soft buffer material, such as rubber, foam board, etc., so as to avoid damaging the tape.

[0014] Furthermore, the clamping and conveying assembly includes: a bidirectional conveying roller for conveying the tape and a tape pressure wheel for clamping or releasing the tape, the bidirectional conveying roller is rotatably arranged on the frame, the bidirectional conveying roller is located on the tape output side of the printing assembly, the tape pressure wheel is movably arranged on the frame up and down, and a gap for tape transmission is arranged between the bidirectional conveying roller and the tape pressure wheel.

[0015] The beneficial effect of adopting the above further solution is that the clamping and conveying assembly is controlled by the control system of the thermal transfer printer to convey the tape forward and backward to cooperate with the printing assembly to move in the lateral direction to perform printing operations on the tape.

[0016] Furthermore, the clamping and conveying assembly also includes: a second bracket, a rocker arm for installing a rubber pressure belt wheel, a second driving shaft for driving the rocker arm, and an adjusting cam for driving the rocker arm to swing, the second bracket is arranged on the frame, the second driving shaft is rotatably arranged on the second bracket, the adjusting cam is sleeved on the second driving shaft, the middle part of the rocker arm is rotatably arranged on the second bracket, the rubber pressure belt wheel is rotatably arranged on one end of the rocker arm, and the adjusting cam abuts against the other end of the rocker arm.

[0017] The beneficial effect of adopting the above further scheme is that the cam adjusting portion of the adjusting cam abuts against the other end of the rocker arm so as to drive the rocker arm to switch between the pressing position and the separation position by pivoting. In the pressing position, the pressure belt wheel is pressed on the conveying roller to clamp the conveying belt. In the separation position, the pressure belt wheel is separated from the conveying roller.

[0018] Furthermore, it also includes: a guide rail for movably mounting the printing component on the frame and a slider for mounting the printing component, the guide rail is arranged on the frame, the slider is slidably arranged on the guide rail, and the printing component is arranged on the slider.

[0019] The beneficial effect of adopting the above further solution is that the guide rail and the slider are arranged so that the printing operation can be performed during the sliding process.

[0020] Furthermore, it also includes: a screw rod for driving the printing component to slide and a nut for installing the printing component, the screw rod is rotatably arranged on the frame, the nut is sleeved on the screw rod, and the printing component is arranged on the nut.

[0021] The beneficial effect of adopting the above further solution is that the screw rod and the nut are arranged so that the printing operation can be performed during the sliding process.

[0022] In addition, the present invention also provides a printer, which includes: a tape pressing device for a thermal transfer printer as described in any one of the above.

[0023] The beneficial effects of the present invention are as follows: the adhesive tape is clamped and fixed by the adhesive tape pressing assembly, and then the conveying adhesive tape is clamped and conveyed by the clamping and conveying assembly, so that the adhesive tape between the adhesive tape pressing assembly and the clamping and conveying assembly is tightened, and then after the adhesive tape is clamped and fixed by the clamping and conveying assembly, the printing assembly is used to print, so that the adhesive tape between the adhesive tape pressing assembly and the clamping and conveying assembly is tightened and the protrusions and depressions thereon are eliminated, so that the thermal transfer printer can print more accurately at the target position during the printing process, thereby improving the printing accuracy of the thermal transfer printer. When the printing assembly of the thermal transfer printer is printing, the pivot frame is located at the pressing position and the swing arm is located at the pressing position, the pressure plate contacts the fixed support plate and clamps the adhesive tape between the fixed pressure plate and the fixed support plate, and the adhesive tape pressing wheel is pressed on the conveying roller to clamp the fixed adhesive tape.

[0024] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is one of the structural schematic diagrams of the adhesive tape pressing device of the thermal transfer printer provided in an embodiment of the present invention.

[0026] Figure 2 The second structural schematic diagram of the adhesive tape pressing device of the thermal transfer printer provided in the embodiment of the present invention.

[0027] Figure 3 The third structural schematic diagram of the adhesive tape pressing device of the thermal transfer printer provided in the embodiment of the present invention.

[0028] Figure 4 The fourth structural schematic diagram of the adhesive tape pressing device of the thermal transfer printer provided in an embodiment of the present invention.

[0029] Figure 5 This is one of the structural schematic diagrams of the clamping and conveying assembly provided in an embodiment of the present invention.

[0030] Figure 6 The second structural schematic diagram of the clamping and conveying assembly provided in an embodiment of the present invention.

[0031] Figure 7 The third structural schematic diagram of the clamping and conveying assembly provided in an embodiment of the present invention.

[0032] Figure 8 The fourth structural schematic diagram of the clamping and conveying assembly provided in an embodiment of the present invention.

[0033] Fig. 9 The fifth structural schematic diagram of the clamping and conveying assembly provided in the embodiment of the present invention.

[0034] Fig.10 The sixth structural schematic diagram of the clamping and conveying assembly provided in an embodiment of the present invention.

[0035] Fig.11 The seventh structural schematic diagram of the clamping and conveying assembly provided in an embodiment of the present invention.

[0036] Fig.12 The eighth structural schematic diagram of the clamping and conveying assembly provided in an embodiment of the present invention.

[0037] Fig.13 The ninth structural schematic diagram of the clamping and conveying assembly provided in an embodiment of the present invention.

[0038] Fig.14 The tenth structural schematic diagram of the clamping and conveying assembly provided in an embodiment of the present invention.

[0039] Fig.15 The eleventh structural schematic diagram of the clamping and conveying assembly provided in an embodiment of the present invention.

[0040] Fig.16 This is one of the structural schematic diagrams of the adhesive tape assembly provided in an embodiment of the present invention.

[0041] Fig.17 The second structural schematic diagram of the adhesive tape assembly provided in the embodiment of the present invention.

[0042] Fig.18 The third structural schematic diagram of the adhesive tape assembly provided in an embodiment of the present invention.

[0043] Fig.19 The fourth structural schematic diagram of the pressing tape assembly provided in an embodiment of the present invention.

[0044] Fig. 20 The fifth structural schematic diagram of the adhesive tape assembly provided in the embodiment of the present invention.

[0045] Explanation of the accompanying drawings: 1-frame; 2-printing assembly; 3-clamping and conveying assembly; 4-pressing tape assembly; 5-fixed support plate; 6-pressing plate; 7-first bracket; 8-pivoting frame; 9-first driving shaft; 10-lifting and pressing cam; 11-first motor; 12-reset spring; 13-buffer pad; 14-bidirectional conveying roller; 15-pressing tape wheel; 17-second bracket; 18-rocker; 19-adjusting cam; 20-screw rod; 21-nut; 22-crossbeam; 23-printing support plate; 24-third motor; 25-fourth motor; 26-second motor; 27-pivoting shaft; 28-coupling; 29-second driving shaft. DETAILED DESCRIPTION

[0046] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0047] like Figures 1 to 4 As shown, an embodiment of the present invention provides a tape pressing device for a thermal transfer printer, which includes: a frame 1, a printing component 2 arranged on the frame 1, a clamping and conveying component 3 for clamping or releasing the tape and capable of conveying the tape, and a tape pressing component 4 for clamping or releasing the tape, the clamping and conveying component 3 and the tape pressing component 4 are both arranged on the frame 1, and the tape pressing component 4 and the clamping and conveying component 3 are arranged correspondingly.

[0048] The beneficial effects of the present invention are as follows: the adhesive tape is clamped and fixed by the adhesive tape pressing assembly, and then the adhesive tape is clamped and conveyed by the adhesive tape clamping and conveying assembly, so that the adhesive tape between the adhesive tape pressing assembly and the adhesive tape clamping and conveying assembly is tightened, and then after the adhesive tape is clamped and fixed by the adhesive tape clamping and conveying assembly, the printing assembly is used to print, so that the adhesive tape between the adhesive tape pressing assembly and the adhesive tape clamping and conveying assembly is tightened to eliminate the protrusions and depressions thereon, so that the thermal transfer printer can print more accurately at the target position during the printing process, thereby improving the printing accuracy of the thermal transfer printer.

[0049] Furthermore, the printing component 2 is movably arranged on the frame 1, and the printing component 2 is arranged between the pressing tape component 4 and the clamping and conveying component 3, and the tape between the pressing tape component 4 and the clamping and conveying component 3 is located on the movement trajectory of the printing component 2.

[0050] like Figures 1 to 4 As shown, an embodiment of the present invention provides a tape pressing device for a thermal transfer printer, comprising a frame 1, a printing assembly 2, a clamping and conveying assembly 3 for clamping and conveying a tape, a tape pressing assembly 4 for fixing the tape on the tape input side, a guide rail slider assembly and a screw nut assembly (i.e., a combination structure of a screw and a nut), the printing assembly 2, the clamping and conveying assembly 3 and the tape pressing assembly 4 are respectively fixed on the frame 1, and relative to the printing assembly 2, the clamping and conveying assembly 3 is located on the tape output side; the tape pressing assembly 4 is located on the tape input side, and the guide rail slider assembly and the screw nut assembly are respectively fixed on the frame 1. The mother assemblies are parallel to each other and are both arranged on the frame 1 in the transverse direction. The frame 1 includes a transversely arranged crossbeam 22 and a printing support plate 23. The guide rail slider assembly is installed below the crossbeam 22. The screw in the screw nut assembly is pivotally installed on the frame 1. One end of the screw 20 is drivingly connected to the third motor 24. The printing assembly is fixedly connected to the slider in the guide rail slider assembly so that it can be slidably installed on the frame 1 in the transverse direction. The printing assembly 2 is fixedly connected to the nut 21 in the screw nut assembly so that it can be driven by the third motor 24 to slide in the transverse direction. The print head in the printing assembly 2 is arranged in the longitudinal direction so that the printing operation can be performed during the sliding process.

[0051] The main function of the clamping and conveying component 3 is to convey the tape forward and backward under the control of the thermal transfer printer control system to cooperate with the printing component 2 to move in the lateral direction to perform printing operations on the tape.

[0052] like Figure 3 and Figure 4 As shown, the clamping conveying assembly 3 includes a bidirectional conveying roller group 14, a pressure roller assembly, a fourth motor 25 and a second motor 26. The bidirectional conveying roller group 14 can be pivotally mounted on the frame 1 and arranged in the transverse direction. One end of the bidirectional conveying roller group 14 is transmission-connected to the fourth motor 25 so as to be driven by the fourth motor 25 to pivot in the forward and reverse directions.

[0053] like Figure 3 and Figure 4As shown, the pressure roller assembly includes: a second bracket 17, a rocker arm 18, a pressure tape wheel 15, an adjusting cam 19 and a second driving shaft 29. The second bracket 17 is mounted on the frame 1, and the middle part of the rocker arm 18 is pivotally mounted on the second bracket 17. The pressure tape wheel 15 is laterally and rotatably arranged at one end of the rocker arm 18. One end of the second driving shaft 29 is transmission-connected to the second motor 26. The adjusting cam 19 is penetrated on the second driving shaft 29 and transmission-connected to the second driving shaft 29. The cam adjusting portion of the adjusting cam 19 abuts against the other end of the rocker arm 18 so as to drive the rocker arm 18 to switch between the pressing position and the separation position by pivoting. In the pressing position, the pressure tape wheel 15 is pressed on the bidirectional conveying roller 14 to clamp the conveying tape. In the separation position, the pressure tape wheel 15 is separated from the bidirectional conveying roller 14.

[0054] like Figures 5 to 15 As shown, the tape pressing assembly 4 includes: a fixed support plate 5, a first motor 11, a first drive shaft 9, a first bracket 7, a lifting and pressing cam 10, a pivot frame 8, a pressing plate 6 and a reset spring 12. Both ends of the fixed support plate 5 are fixed to the frame 1 and are adjacent to the printing support plate 23 (located on the tape input side of the printing support plate). The top of the first bracket 7 is fixed to the bottom surface of the fixed support plate 5 by fasteners. The first motor 11 is fixed on the first bracket 7. The first drive shaft 9 is connected to the output shaft of the first motor 11 through a coupling 28. The pivot frame 8 is pivotally mounted on the first bracket 7 through a pivot shaft 27 so as to switch between a pressing position and a lifting position. The cam 10 is transmission connected to the first drive shaft 9, and the cam working surface of the lifting cam 10 abuts against the pivot frame 8 so that the pivot frame 8 can be driven to switch between the downward position and the lifting position through its own rotation. The two ends of the return spring 12 are connected to the pivot frame 8 and the first bracket 7 one by one so as to apply a biasing force biased to the downward position to the pivot frame 8. When the pivot frame 8 is in the downward position, the pressure plate 6 contacts the fixed support plate 5 and clamps the tape between the fixed pressure plate 6 and the fixed support plate 5; when the pivot frame 8 is in the lifting position, the pressure plate 6 is separated from the fixed support plate 5, and the tape between the pressure plate 6 and the fixed support plate 5 can be clamped and conveyed forward or backward by the clamping and conveying component 3.

[0055] like Figures 16 to 20 As shown, the first bracket 7 is a rectangular bracket formed by bending a metal plate (the bottom of the rectangular bracket is open), the pivot frame 8 is also a rectangular bracket formed by bending a metal plate (the bottom of the rectangular bracket is open), the pivot frame 8 is arranged in the first bracket 7, the top of the first bracket 7 is provided with a first opening, the fixed support plate 5 is provided with a second opening, and the pressure plate 6 is fastened to the top surface of the pivot frame 8 through the first opening and the second opening.

[0056] like Fig.18As shown, the pressing portion of the pivot frame 8 is provided with a buffer pad 13, which can be made of a soft buffer material, such as rubber, foam board, etc., so as to avoid damaging the tape.

[0057] The adhesive tape pressing assembly 4 comprises: two first brackets 7, two lifting and pressing cams 10, two pivoting frames 8, and two pressing plates 6. Both ends of the first driving shaft 9 are pivotally mounted on the two first brackets 7 through bearings.

[0058] When the printing assembly of the thermal transfer printer is printing, the pivot frame 8 is in the downward position and the rocker arm is in the pressing position, the pressure plate 6 contacts the fixed support plate 5 and clamps the tape between the fixed pressure plate 6 and the fixed support plate 5, and the tape pressing wheel 15 is pressed on the bidirectional conveying roller 14 to clamp the fixed tape.

[0059] like Fig.16 As shown, further, the tape pressing component 4 includes: a fixed support plate 5 for supporting the tape on the tape input side of the printing component 2 and a pressure plate 6 for pressing or releasing the tape on the tape input side of the printing component 2, the fixed support plate 5 is arranged on the frame 1, the fixed support plate 5 is located for supporting the tape on the tape input side of the printing component 2, the pressure plate 6 can be movably arranged on the fixed support plate 5 up and down so as to press or release the tape between the fixed support plate 5 and the pressure plate 6, and a gap for tape transmission is arranged between the pressure plate 6 and the fixed support plate 5.

[0060] The beneficial effect of adopting the above further scheme is: when the pressing plate is in the pressing position, the pressing plate contacts the fixed support plate and clamps the tape between the fixed pressing plate and the fixed support plate; when the pressing plate is in the lifting position, the pressing plate is separated from the fixed support plate, and the tape between the pressing plate and the fixed support plate can be clamped and conveyed forward or backward by the clamping and conveying assembly.

[0061] like Figures 16 to 20As shown, further, the pressing tape assembly 4 also includes: a first bracket 7 for supporting the pressure plate 6, a pivot frame 8 for supporting and installing the pressure plate 6, a first driving shaft 9 for driving the pivot frame 8, a lifting and pressing cam 10 for driving the pivot frame 8 to move up and down, a first motor 11 for driving the first driving shaft 9 to rotate, and a return spring 12 for applying tension to the pivot frame 8, the first bracket 7 is installed at the bottom of the fixed support plate 5, the first driving shaft 9 is rotatably set on the first bracket 7, the lifting and pressing cam 10 is sleeved on the first driving shaft 9, and the pivot frame 8 is pivotally installed on the first bracket 7 through a pivot shaft 27 and can move up and down. In order to switch between the depressed position and the lifted position, the lifting cam 10 abuts against the bottom of the pivot frame 8 so as to drive the pivot frame 8 to switch between the depressed position and the lifted position, the pressure plate 6 is connected to the pivot frame 8, and the fixed support plate 5 is provided with a mounting hole for mounting the pressure plate 6, and the pressure plate 6 is exposed at the top of the fixed support plate 5 through the mounting hole; the first motor 11 is arranged on the first bracket 7, and the first drive shaft 9 is transmission-connected to the first motor 11, and the two ends of the return spring 12 are connected to the first bracket 7 and the pivot frame 8 in sequence, so as to bias the pivot frame 8 to the depressed position.

[0062] The beneficial effect of adopting the above further scheme is that the pivot frame is pivotally mounted on the first bracket through the pivot shaft 27 so as to switch between the pressing position and the lifting position, the lifting cam is in driving connection with the first driving shaft, and the cam working surface of the lifting cam abuts against the pivot frame so as to drive the pivot frame to switch between the pressing position and the lifting position through its own rotation. When the pivot frame is in the pressing position, the pressure plate contacts the fixed support plate to clamp the adhesive tape between the fixed pressure plate and the fixed support plate; when the pivot frame is in the lifting position, the pressure plate is separated from the fixed support plate, and the adhesive tape between the pressure plate and the fixed support plate can be clamped and conveyed forward or backward by the clamping and conveying assembly.

[0063] The mounting hole is the second opening.

[0064] like Fig.16 and Fig. 20 As shown, further, the pressing belt assembly 4 also includes: a first motor 11 for driving the first driving shaft 9 to rotate and a return spring 12 for applying tension to the pivot frame 8, the first motor 11 is arranged on the first bracket 7, the first driving shaft 9 is connected to the first motor 11, and the two ends of the return spring 12 are connected to the first bracket 7 and the pivot frame 8 in sequence.

[0065] The beneficial effect of adopting the above further solution is that the two ends of the return spring are connected to the pivot frame and the first bracket in a one-to-one correspondence, so as to apply a biasing force biased to the downward pressing position to the pivot frame. When the pivot frame is in the downward pressing position, the pressure plate contacts the fixed support plate and clamps the adhesive tape between the fixed pressure plate and the fixed support plate; when the pivot frame is in the raised position, the pressure plate is separated from the fixed support plate, and the adhesive tape between the pressure plate and the fixed support plate can be clamped and conveyed forward or backward by the clamping and conveying assembly.

[0066] like Fig.16 and Fig. 20 As shown, further, the adhesive tape assembly 4 further includes: a buffer pad 13 for buffering the adhesive tape, and the buffer pad 13 is arranged on the surface of the pressing plate 6 facing the fixed support plate 5.

[0067] The beneficial effect of adopting the above further solution is that the buffer pad can be made of soft buffer material, such as rubber, foam board, etc., so as to avoid damaging the tape.

[0068] like Figure 3 and Figure 4 As shown, further, the clamping and conveying component 3 includes: a bidirectional conveying roller 14 for conveying the tape and a tape pressing wheel 15 for clamping or releasing the tape, the bidirectional conveying roller 14 is rotatably arranged on the frame 1, the bidirectional conveying roller 14 is located on the tape output side of the printing component 2, the tape pressing wheel 15 is movably arranged on the frame 1 up and down, and a gap for tape transmission is arranged between the bidirectional conveying roller 14 and the tape pressing wheel 15.

[0069] The beneficial effect of adopting the above further solution is that the clamping and conveying assembly is controlled by the control system of the thermal transfer printer to convey the tape forward and backward to cooperate with the printing assembly to move in the lateral direction to perform printing operations on the tape.

[0070] like Figure 3 and Figure 4 As shown, further, the clamping and conveying assembly 3 also includes: a second bracket 17 for supporting the rubber pressure belt wheel 15, a rocker arm 18 for supporting and installing the rubber pressure belt wheel 15, a second driving shaft 29 for driving the rocker arm 18, and an adjusting cam 19 for driving the rocker arm 18 to swing up and down, the second bracket 17 is arranged on the frame 1, the second driving shaft 29 is rotatably arranged on the second bracket 1, the adjusting cam 19 is sleeved on the second driving shaft 29, the middle part of the rocker arm 18 is rotatably arranged on the second bracket 17, the rubber pressure belt wheel 15 is rotatably arranged at one end of the rocker arm 18, and the adjusting cam 19 is connected and abutted with the other end of the rocker arm 18.

[0071] The beneficial effect of adopting the above further scheme is that the cam adjusting portion of the adjusting cam abuts against the other end of the rocker arm so as to drive the rocker arm to switch between the pressing position and the separation position by pivoting. In the pressing position, the pressure belt wheel is pressed on the conveying roller to clamp the conveying belt. In the separation position, the pressure belt wheel is separated from the conveying roller.

[0072] Furthermore, it also includes: a guide rail for movably mounting the printing component 2 on the frame 1 and a slider for mounting the printing component 2, the guide rail is arranged on the frame 1, the slider is slidably arranged on the guide rail, and the printing component 2 is arranged on the slider.

[0073] The beneficial effect of adopting the above further solution is that the guide rail and the slider are arranged so that the printing operation can be performed during the sliding process.

[0074] like Figure 2 As shown, further, it also includes: a screw rod 20 for driving the printing component 2 to slide and a nut 21 for installing the printing component 2, the screw rod 20 is rotatably arranged on the frame 1, the nut 21 is sleeved on the screw rod 20, and the printing component 2 is arranged on the nut 21.

[0075] The beneficial effect of adopting the above further solution is that the screw rod and the nut are arranged so that the printing operation can be performed during the sliding process.

[0076] In addition, the present invention also provides a printer, which includes: a tape pressing device for a thermal transfer printer as described in any one of the above.

[0077] The beneficial effects of the present invention are as follows: the adhesive tape is clamped and fixed by the adhesive tape pressing assembly, and then the conveying adhesive tape is clamped and conveyed by the clamping and conveying assembly, so that the adhesive tape between the adhesive tape pressing assembly and the clamping and conveying assembly is tightened, and then after the adhesive tape is clamped and fixed by the clamping and conveying assembly, the printing assembly is used to print, so that the adhesive tape between the adhesive tape pressing assembly and the clamping and conveying assembly is tightened and the protrusions and depressions thereon are eliminated, so that the thermal transfer printer can print more accurately at the target position during the printing process, thereby improving the printing accuracy of the thermal transfer printer. When the printing assembly of the thermal transfer printer is printing, the pivot frame is located at the pressing position and the swing arm is located at the pressing position, the pressure plate contacts the fixed support plate and clamps the adhesive tape between the fixed pressure plate and the fixed support plate, and the adhesive tape pressing wheel is pressed on the conveying roller to clamp the fixed adhesive tape.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tape pressing device for a thermal transfer printer, characterized in that: include: A frame (1), a printing assembly (2) arranged on the frame (1), a clamping and conveying assembly (3) for clamping or releasing an adhesive tape and capable of conveying the adhesive tape, and a tape pressing assembly (4) for clamping or releasing the adhesive tape, wherein the clamping and conveying assembly (3) and the tape pressing assembly (4) are both arranged on the frame (1), and the tape pressing assembly (4) and the clamping and conveying assembly (3) are arranged correspondingly; The printing assembly (2) is movably arranged on the frame (1), the printing assembly (2) is arranged between the adhesive tape assembly (4) and the clamping and conveying assembly (3), and the adhesive tape between the adhesive tape assembly (4) and the clamping and conveying assembly (3) is located on the movement track of the printing assembly (2); The adhesive tape pressing assembly (4) comprises: a fixed support plate (5) and a pressure plate (6), wherein the fixed support plate (5) is arranged on the frame (1), the fixed support plate (5) is used to support the adhesive tape at the adhesive tape input side of the printing assembly (2), the pressure plate (6) is movably arranged on the fixed support plate (5) so as to press or release the adhesive tape between the fixed support plate (5) and the pressure plate (6), and a gap for conveying the adhesive tape is arranged between the pressure plate (6) and the fixed support plate (5); The adhesive tape assembly (4) further comprises: a first bracket (7), a pivot bracket (8) for mounting a pressure plate (6), a first drive shaft (9) for driving the pivot bracket (8), a lifting and pressing cam (10) for driving the pivot bracket (8) to move up and down, a first motor (11) for driving the first drive shaft (9) to rotate, and a return spring (12) for applying a pulling force to the pivot bracket (8), wherein the first bracket (7) is mounted at the bottom of the fixed support plate (5), the first drive shaft (9) is rotatably arranged on the first bracket (7), the lifting and pressing cam (10) is sleeved on the first drive shaft (9), and the pivot bracket (8) is pivotally mounted on the first bracket (7) via a pivot shaft (27) so as to be in a downward pressing position. and a lifting position, the lifting cam (10) abuts against the bottom of the pivot frame (8) so as to drive the pivot frame (8) to switch between the pressing position and the lifting position, the pressing plate (6) is connected to the pivot frame (8), and a mounting hole for mounting the pressing plate (6) is provided on the fixed support plate (5), and the pressing plate (6) is exposed on the top of the fixed support plate (5) through the mounting hole; the first motor (11) is arranged on the first bracket (7), the first drive shaft (9) is transmission-connected to the first motor (11), and the two ends of the return spring (12) are connected to the first bracket (7) and the pivot frame (8) in sequence so as to bias the pivot frame (8) to the pressing position; The clamping and conveying assembly (3) comprises: a bidirectional conveying roller (14) for conveying the adhesive tape and a tape pressing wheel (15) for clamping or releasing the adhesive tape, the bidirectional conveying roller (14) being rotatably arranged on the frame (1), the bidirectional conveying roller (14) being located on the adhesive tape output side of the printing assembly (2), the tape pressing wheel (15) being movably arranged on the frame (1) up and down, and a gap for conveying the adhesive tape being arranged between the bidirectional conveying roller (14) and the tape pressing wheel (15); The clamping and conveying assembly (3) further comprises: a second bracket (17), a swing rod (18) for mounting a rubber belt wheel (15), a second driving shaft (29) for driving the swing rod (18), and an adjusting cam (19) for driving the swing rod (18) to swing, wherein the second bracket (17) is arranged on the frame (1), the second driving shaft (29) is rotatably arranged on the second bracket (17), the adjusting cam (19) is sleeved on the second driving shaft (29), the middle part of the swing rod (18) is rotatably arranged on the second bracket (17), the rubber belt wheel (15) is rotatably arranged on one end of the swing rod (18), and the adjusting cam (19) abuts against the other end of the swing rod (18).

2. A tape pressing device for a thermal transfer printer according to claim 1, characterized in that: The adhesive tape pressing assembly (4) further comprises: a buffer pad (13) for providing buffering for the adhesive tape, wherein the buffer pad (13) is arranged on the surface of the pressing plate (6) facing the fixed support plate (5).

3. The adhesive tape pressing device for a thermal transfer printer according to claim 1, characterized in that: Also includes: A guide rail for movably mounting a printing component (2) on a frame (1) and a slider for mounting the printing component (2), wherein the guide rail is arranged on the frame (1), the slider is slidably arranged on the guide rail, and the printing component (2) is arranged on the slider.

4. The adhesive tape pressing device for a thermal transfer printer according to claim 1, characterized in that: Also includes: A screw rod (20) for driving the printing assembly (2) to slide and a nut (21) for mounting the printing assembly (2), wherein the screw rod (20) is rotatably arranged on the frame (1), the nut (21) is sleeved on the screw rod (20), and the printing assembly (2) is arranged on the nut (21).

5. A printer, characterized in that: include: A tape pressing device for a thermal transfer printer as described in any one of claims 1 to 4.

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