CN212711949U - Adhesive tape stretching device for thermal transfer printer and thermal transfer printer - Google Patents
Adhesive tape stretching device for thermal transfer printer and thermal transfer printer Download PDFInfo
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- CN212711949U CN212711949U CN202020505183.3U CN202020505183U CN212711949U CN 212711949 U CN212711949 U CN 212711949U CN 202020505183 U CN202020505183 U CN 202020505183U CN 212711949 U CN212711949 U CN 212711949U
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Abstract
The invention discloses a thermal transfer printer and an adhesive tape stretching device thereof, wherein the adhesive tape stretching device comprises: the automatic adhesive tape pulling machine comprises a rack, a first clamping and conveying assembly, a second clamping and conveying assembly, a first sensor and a controller, wherein the controller is provided with a clamping and conveying mode and an adhesive tape stretching mode; when the controller is in the tape stretching mode, the controller controls the first clamping conveying assembly and the second clamping conveying assembly to clamp and convey the tapes in a speed difference mode, and when the tightness of the tapes between the first clamping conveying assembly and the second clamping conveying assembly measured by the first sensor is larger than or equal to a preset value, the controller is changed from the tape stretching mode to the clamping conveying mode; when the clamping conveying mode is used for clamping and conveying the adhesive tape for a preset distance, the controller is changed into an adhesive tape stretching mode from the clamping conveying mode.
Description
Technical Field
The invention relates to the field of thermal transfer printers, in particular to an adhesive tape stretching device for a thermal transfer printer and the thermal transfer printer.
Background
Thermal transfer printers are widely used in various industries because of their advantages of high printing speed, long storage time of printed products, and the like. The existing thermal transfer printer has a double printing function, wherein double printing refers to that multiple color ribbons of different colors are adopted to be sequentially printed on the same section of adhesive tape so that the adhesive tape displays multiple colors, in the double printing process, the adhesive tape needs to be retreated to a starting position after printing the color ribbon of one color, then the color ribbon of another color is replaced on the thermal transfer printer, then the thermal transfer printer continues to print by using the color ribbon of the another color from the starting position, and in order to ensure that the colors of different color ribbons are accurately printed on the adhesive tape all the time, the adhesive tape needs to be ensured to be accurately returned to the starting position.
Because the adhesive tape has certain ductility, and the adhesive tape in the existing thermal transfer printer is not completely tightened after being released from the adhesive tape roll, the problem that the adhesive tape cannot be accurately detected by the sensor and recorded in the electric control system exists in the releasing and returning processes of the adhesive tape, so that the existing thermal transfer printer has the problem of poor sleeving precision.
Disclosure of Invention
The invention aims to provide an adhesive tape stretching device for a thermal transfer printer, so as to be capable of tightening an adhesive tape in the thermal transfer printer.
In order to achieve the above object, the present invention provides an adhesive tape stretching device for a thermal transfer printer, the adhesive tape stretching device comprising: a frame, a first clamping and conveying assembly for clamping and conveying the adhesive tape, a second clamping and conveying assembly for clamping and conveying the adhesive tape, a first sensor and a controller with a clamping and conveying mode and an adhesive tape stretching mode, the first clamping conveying assembly and the second clamping conveying assembly are arranged on the rack at intervals and are positioned at the adhesive tape input end and the adhesive tape output end in a one-to-one correspondence manner, the first sensor is used for detecting the tightness of the adhesive tape between the first clamping conveying assembly and the second clamping conveying assembly in real time, the controller is respectively electrically connected with the first clamping and conveying assembly, the second clamping and conveying assembly and the first sensor, when the clamping conveying mode is adopted, the controller controls the first clamping conveying assembly and the second clamping conveying assembly to synchronously clamp and convey the rubber belt at a constant speed; when the controller is in a tape stretching mode, the controller controls the first clamping conveying assembly and the second clamping conveying assembly to clamp and convey the tapes in a speed difference mode so as to tighten the tapes between the first clamping conveying assembly and the second clamping conveying assembly, and when the first sensor detects that the tightness of the tapes between the first clamping conveying assembly and the second clamping conveying assembly is larger than or equal to a preset value, the controller is changed from the tape stretching mode to the clamping conveying mode; when the clamping conveying mode is used for clamping the conveying adhesive tape for a preset distance, the controller is changed into the tape stretching mode from the clamping conveying mode.
Further, when the controller is in the tape stretching mode, the controller controls the first clamping and conveying assembly to clamp and convey the adhesive tape reversely and forwardly in a circulating manner at a first reverse clamping and conveying speed and a first forward clamping and conveying speed, and controls the second clamping and conveying assembly to clamp and convey the adhesive tape reversely and forwardly in a circulating manner at a second reverse clamping and conveying speed and a second forward clamping and conveying speed, wherein the first reverse clamping and conveying speed is greater than the second reverse clamping and conveying speed, and the first forward clamping and conveying speed is less than the second forward clamping and conveying speed.
Further, the frame includes left mounting panel, right mounting panel and a plurality of fastening connection the left mounting panel with the connecting rod of right mounting panel.
The first clamping and conveying assembly comprises a first driving roller set, a first driven roller set, a first driving assembly, a first linear driving assembly and a second linear driving assembly, two ends of the first driving roller set are in one-to-one correspondence and rotatably mounted on the left mounting plate and the right mounting plate, the first driving assembly is in transmission connection with the first driving roller set so as to drive the first driving roller set to rotate, two ends of the first driven roller set are in one-to-one correspondence and rotatably mounted on respective driven ends of the first linear driving assembly and the second linear driving assembly, and the first linear driving assembly and the second linear driving assembly are mounted on the left mounting plate and the right mounting plate in one-to-one correspondence and used for synchronously driving the first driven roller set to abut against and keep away from the first driving roller set; the second clamping conveying assembly comprises a second driving roller set, a second driven roller set, a second driving assembly, a third linear driving assembly and a fourth linear driving assembly, two ends of the second driving roller set are in one-to-one correspondence and rotatably installed on the left installation plate and the right installation plate, the second driving assembly is in transmission connection with the second driving roller set so as to drive the second driving roller set to rotate, two ends of the second driven roller set are in one-to-one correspondence and rotatably installed on the driven ends of the third linear driving assembly and the fourth linear driving assembly respectively, the third linear driving assembly and the fourth linear driving assembly are installed on the left installation plate and the right installation plate in one-to-one correspondence and used for synchronously driving the second driven roller set to abut against and keep away from the second driving roller set, and the controller respectively corresponds to the first driving assembly, The first linear driving assembly, the second driving assembly, the third linear driving assembly and the fourth linear driving assembly are electrically connected.
Further, the first nip transport assembly further includes a second sensor electrically connected to the controller for detecting whether the first set of driven rollers abuts the first set of drive rollers, and the second nip transport assembly further includes a third sensor electrically connected to the controller for detecting whether the second set of driven rollers abuts the second set of drive rollers.
Furthermore, the first driving assembly and the second driving assembly comprise a servo motor and a speed reducer in transmission connection with the servo motor, and the first sensor is a torque sensor arranged in the servo motor.
Further, the first driving roller group comprises a first driving roller shaft and a first driving roller which is installed on the first driving roller shaft in a transmission connection mode, two ends of the first driving roller shaft are in one-to-one correspondence and are installed on the left installation plate and the right installation plate in a rotatable mode, the first driven roller group comprises a first driven roller shaft and a first driven roller which is installed on the first driven roller shaft, and two ends of the first driven roller shaft are in one-to-one correspondence and are installed on the driven ends of the first linear driving assembly and the second linear driving assembly in a rotatable mode; the second driving roller group comprises a second driving roller shaft and a second driving roller wheel which is installed on the second driving roller shaft in a transmission connection mode, the two ends of the second driving roller shaft correspond to each other one by one and are installed on the left installation plate and the right installation plate in a rotating mode, the second driven roller group comprises a second driven roller shaft and a second driven roller wheel which is installed on the second driven roller shaft, and the two ends of the second driven roller shaft correspond to each other and are installed on the third linear driving assembly and the fourth linear driving assembly respectively and driven ends.
Further, the first linear driving assembly, the second linear driving assembly, the third linear driving assembly and the fourth linear driving assembly all include a stepping motor, a lead screw, a nut seat, a first mounting seat, a second mounting seat, a plurality of guide shafts, a limiting block and a plurality of springs, the lead screw is in transmission connection with the stepping motor through a coupling, the stepping motor is mounted on the first mounting seat through a bracket, the lead screw sequentially passes through the first mounting seat, the limiting block, the nut seat and the second mounting seat and is in one-to-one rotatable fit, threaded fit and rotatable fit with the first mounting seat, the limiting block, the nut seat and the second mounting seat, and the guide shafts sequentially pass through the first mounting seat, the limiting block, the springs, the nut seat and the second mounting seat and are in rotatable fit, threaded fit and rotatable fit with the first mounting seat, The limiting blocks, the nut seats and the second mounting seats are in one-to-one corresponding limiting fit, slidable fit and limiting fit, the first mounting seats, the limiting blocks and the second mounting seats are fixedly mounted at corresponding positions of the rack at intervals, and two ends of the first driven roll shaft are in one-to-one correspondence and rotatably mounted on the respective nut seats of the first linear driving assembly and the second linear driving assembly through two bearings; two ends of the second driven roll shaft are in one-to-one correspondence through two bearings and are rotatably installed on the nut seats of the third linear driving assembly and the fourth linear driving assembly respectively.
Furthermore, two ends of the first driving roll shaft are in one-to-one correspondence through two bearings and are rotatably installed on the second installation seats of the first linear driving assembly and the second linear driving assembly respectively; and two ends of the second driving roll shaft are in one-to-one correspondence through two bearings and are rotatably arranged on the respective second mounting seats of the third linear driving assembly and the fourth linear driving assembly.
In addition, the invention also provides a thermal transfer printer which comprises the tape stretching device for the thermal transfer printer.
The adhesive tape stretching device for the thermal transfer printer can control the first clamping conveying assembly and the second clamping conveying assembly to clamp and convey the adhesive tapes in a speed difference mode through the controller, so that the adhesive tapes between the first clamping conveying assembly and the second clamping conveying assembly are tightened, then the first clamping conveying assembly and the second clamping conveying assembly are controlled by the controller to synchronously clamp and convey the adhesive tapes at the same speed, the tightened adhesive tapes are conveyed to other subsequent processes such as thermal transfer printing, and the unstrained adhesive tapes are conveyed between the first clamping conveying assembly and the second clamping conveying assembly.
The thermal transfer printer of the invention also has the advantages of the tape stretching device because the tape stretching device for the thermal transfer printer of the invention is included.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective view of an embodiment of a tape stretching device for a thermal transfer printer according to the present invention;
fig. 2 is a perspective view of the tape stretching device in fig. 1 from another perspective;
fig. 3 is a perspective view of a first clamping conveyor assembly in the tape stretching device of fig. 1;
fig. 4 is a perspective view of a second clamping conveyor assembly in the tape stretching device of fig. 1;
fig. 5 is a perspective view of one of the first, second, third and fourth linear driving assemblies in the tape stretching device of fig. 1;
fig. 6 is a front view of one of the first, second, third and fourth linear driving assemblies in the tape stretching device of fig. 1.
Description of the reference numerals
1. Frame 2, first centre gripping conveying assembly
3. Second clamping conveying assembly 4 and adhesive tape
11. Left mounting plate 12, right mounting plate
13. Connecting rod
21. First driving roller set 22 and first driven roller set
23. First drive assembly 24, first linear drive assembly
25. Second linear driving assembly
31. A second driving roller set 32 and a second driven roller set
33. Second drive assembly 34, third linear drive assembly
35. Fourth linear driving assembly
51. Servo motor 52, speed reducer
61. Stepping motor 62 and lead screw
63. Nut seat 64 and first mounting seat
65. Second mounting seat 66 and guide shaft
67. Limiting block 68 and spring
69. Coupler 70 and bracket
211. A first driving roller shaft 212 and a first driving roller
221. First driven roller shaft 222, first driven roller
311. A second driving roller shaft 312 and a second driving roller
321. Second driven roller shaft 322, second driven roller
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention discloses an adhesive tape stretching device for a thermal transfer printer, and particularly, as shown in fig. 1 to 6, the adhesive tape stretching device comprises: a frame 1, a first clamping and conveying component 2 for clamping and conveying the adhesive tape 4, a second clamping and conveying component 3 for clamping and conveying the adhesive tape 4, a first sensor and a controller with a clamping and conveying mode and an adhesive tape stretching mode, the first clamping and conveying assembly 2 and the second clamping and conveying assembly 3 are arranged on the frame 1 at intervals and are positioned at the input end and the output end of the adhesive tape in a one-to-one correspondence manner, the first sensor is used for detecting the tightness of the adhesive tape 4 between the first clamping conveying component 2 and the second clamping conveying component 3 in real time, the controller is respectively electrically connected with the first clamping and conveying assembly 2, the second clamping and conveying assembly 3 and the first sensor, when in the clamping conveying mode, the controller controls the first clamping conveying assembly 2 and the second clamping conveying assembly 3 to synchronously clamp and convey the rubber belt 4 at the same speed; when the first clamping conveying assembly 2 and the second clamping conveying assembly 3 are in a tape stretching mode, the controller controls the first clamping conveying assembly 2 and the second clamping conveying assembly 3 to clamp and convey the adhesive tapes 4 in a speed difference mode so as to tighten the adhesive tapes 4 between the first clamping conveying assembly 2 and the second clamping conveying assembly 3, and when the first sensor detects that the tightness of the adhesive tapes 4 between the first clamping conveying assembly 2 and the second clamping conveying assembly 3 is larger than or equal to a preset value, the controller is changed from the tape stretching mode to the clamping conveying mode; when the clamping conveying mode is used for clamping the conveying rubber belt 4 for a preset distance, the controller is changed into the rubber belt stretching mode from the clamping conveying mode.
The adhesive tape stretching device for the thermal transfer printer can control the first clamping and conveying assembly 2 and the second clamping and conveying assembly 3 to clamp and convey the adhesive tape 4 in a speed difference mode through the controller, so that the adhesive tape 4 between the first clamping and conveying assembly 2 and the second clamping and conveying assembly 3 is tightened, then the first clamping and conveying assembly 2 and the second clamping and conveying assembly 3 are controlled by the controller to synchronously clamp and convey the adhesive tape 4 at a constant speed, so that the tightened adhesive tape 4 is conveyed to other subsequent processes such as thermal transfer printing and the like, and the unstrained adhesive tape 4 is conveyed between the first clamping and conveying assembly 2 and the second clamping and conveying assembly 3.
It should be noted that, the specific structural forms of the frame 1, the first clamping and conveying assembly 2, and the second clamping and conveying assembly 3, the specific types of the first sensor and the controller, and the predetermined value, the predetermined distance, and the specific speed at which the controller controls the first clamping and conveying assembly 2 and the second clamping and conveying assembly 3 to clamp and convey the adhesive tape 4 in different modes can be set as required, and all of them are within the technical idea of the present invention. Specific embodiments of the above-described structure will be described below by way of example.
In the tape stretching device for a thermal transfer printer of the present invention, in order to control the first nipping conveyor assembly 2 and the second nipping conveyor assembly 3 to nip the conveyor tape 4 in such a manner as to have a speed difference so as to tighten the adhesive tape 4 between the first nipping conveyor assembly 2 and the second nipping conveyor assembly 3, when the device is in the tape stretching mode, the controller controls the first clamping and conveying assembly 2 to circularly and forwardly clamp and convey the adhesive tape 4 in the reverse direction at a first reverse clamping and conveying speed and a first forward clamping and conveying speed and controls the second clamping and conveying assembly 3 to circularly and forwardly clamp and convey the adhesive tape 4 in the reverse direction at a second reverse clamping and conveying speed and a second forward clamping and conveying speed, the first reverse clamping conveying speed is higher than the second reverse clamping conveying speed, and the first forward clamping conveying speed is lower than the second forward clamping conveying speed; optionally, when the tape stretching mode is in the tape stretching mode, the controller controls the first clamping and conveying assembly 2 to circularly and forwardly clamp and convey the adhesive tape 4 in the reverse direction and the forward direction and controls the second clamping and conveying assembly 3 to circularly and forwardly clamp and convey the adhesive tape 4 in the reverse direction and the forward direction at a first reverse clamping and conveying speed and a second forward clamping and conveying speed, wherein the first reverse clamping and conveying speed is greater than the second reverse clamping and conveying speed, and the first forward clamping and conveying speed is less than the second forward clamping and conveying speed.
The forward nip conveyance means nip conveyance from the tape input end toward the tape output end, and the reverse nip conveyance means nip conveyance from the tape output end toward the tape input end. It should be noted that the controller may also control the cycle time of the first and second gripping and conveying assemblies 2 and 3 according to the need.
In the above tape-stretching device, specifically, the chassis 1 includes a left mounting plate 11, a right mounting plate 12, and a plurality of connecting rods 13 fixedly connecting the left mounting plate 11 and the right mounting plate 12. More specifically, as shown in fig. 3, the first clamping and conveying assembly 2 includes a first driving roller set 21, a first driven roller set 22, a first driving assembly 23, a first linear driving assembly 24 and a second linear driving assembly 25, two ends of the first driving roller set 21 are correspondingly and rotatably mounted on the left mounting plate 11 and the right mounting plate 12, the first driving assembly 23 is in transmission connection with the first driving roller set 21 so as to drive the first driving roller set 21 to rotate, two ends of the first driven roller set 22 are correspondingly and rotatably mounted on the driven ends of the first linear driving assembly 24 and the second linear driving assembly 25, and the first linear driving assembly 24 and the second linear driving assembly 25 are correspondingly mounted on the left mounting plate 11 and the right mounting plate 12 so as to synchronously drive the first driven roller set 22 to abut against and be away from the first driving roller set 21 (the first driven roller set 22 and the second driven roller set 22) and the second linear driving assembly 25 are correspondingly mounted on the left mounting plate 11 and the right mounting plate 12 When the driving roller group 21 is close to the belt conveyor, the belt conveyor 4 can be clamped, and when the first driven roller group 22 and the first driving roller group 21 are far away from each other, the belt conveyor 4 can be replaced, and the thermal transfer printer can be maintained and debugged conveniently); as shown in fig. 4, the second clamping and conveying assembly 3 includes a second driving roller set 31, a second driven roller set 32, a second driving assembly 33, a third linear driving assembly 34 and a fourth linear driving assembly 35, two ends of the second driving roller set 31 are correspondingly and rotatably mounted on the left mounting plate 11 and the right mounting plate 12, the second driving assembly 33 is in transmission connection with the second driving roller set 31 so as to drive the second driving roller set 31 to rotate, two ends of the second driven roller set 32 are correspondingly and rotatably mounted on the driven ends of the third linear driving assembly 34 and the fourth linear driving assembly 35, respectively, the third linear driving assembly 34 and the fourth linear driving assembly 35 are correspondingly mounted on the left mounting plate 11 and the right mounting plate 12 so as to synchronously drive the second driven roller set 32 to abut against and separate from the second driving roller set 31 (the second driven roller set 32 and the second driving roller set 32) and the fourth driving roller set 35 are correspondingly mounted on the left mounting plate 11 and the right mounting plate 12 so as to synchronously drive the second driven roller 31 to clamp the conveyor belt 4, and the second driven roller set 32 and the second driving roller set 31 are far away from each other to replace the belt 4 and to facilitate maintenance and commissioning of the thermal transfer printer), and the controller is electrically connected to the first driving assembly 23, the first linear driving assembly 24, the second linear driving assembly 25, the second driving assembly 33, the third linear driving assembly 34 and the fourth linear driving assembly 35, respectively.
In the above tape stretching device, preferably, the first nip transport assembly 2 further includes a second sensor electrically connected to the controller, the second sensor is configured to detect whether the first driven roller set 22 abuts against the first driving roller set 21, the second nip transport assembly 3 further includes a third sensor electrically connected to the controller, and the third sensor is configured to detect whether the second driven roller set 32 abuts against the second driving roller set 31.
In the above tape stretching device, specifically, as shown in fig. 3 and 4, each of the first driving assembly 23 and the second driving assembly 33 includes a servo motor 51 and a speed reducer 52 in transmission connection with the servo motor 51, and since the magnitude of the torque of the servo motor 51 is proportional to the tightness of the tape 4, the first sensor may preferably be a torque sensor built in the servo motor 51.
In the tape-pulling device, more specifically, as shown in fig. 3, the first driving roller set 21 includes a first driving roller shaft 211 and a first driving roller 212 installed on the first driving roller shaft 211 in a transmission connection manner, two ends of the first driving roller shaft 211 are installed on the left installation plate 11 and the right installation plate 12 in a one-to-one correspondence and rotatable manner, the first driven roller set 22 includes a first driven roller shaft 221 and a first driven roller 222 installed on the first driven roller shaft 221 in a transmission connection or rotatable manner, two ends of the first driven roller shaft 221 are installed on respective driven ends of the first linear driving assembly 24 and the second linear driving assembly 25 in a one-to-one correspondence and rotatable manner; as shown in fig. 4, the second driving roller set 31 includes a second driving roller shaft 311 and a second driving roller 312 installed on the second driving roller shaft 311 in a transmission connection manner, two ends of the second driving roller shaft 311 are installed on the left installation plate 11 and the right installation plate 12 in a one-to-one correspondence manner and are rotatable, the second driven roller set 32 includes a second driven roller shaft 321 and a second driven roller 322 installed on the second driven roller shaft 321 in a transmission connection manner or are rotatable, and two ends of the second driven roller shaft 321 are installed on respective driven ends of the third linear driving assembly 34 and the fourth linear driving assembly 35 in a one-to-one correspondence manner and are rotatable.
In the above tape-stretching device, more specifically, as shown in fig. 5 and 6, each of the first linear driving assembly 24, the second linear driving assembly 25, the third linear driving assembly 34 and the fourth linear driving assembly 35 includes a stepping motor 61, a lead screw 62, a nut seat 63, a first mounting seat 64, a second mounting seat 65, a plurality of guide shafts 66, a limiting block 67 and a plurality of springs 68, the lead screw 62 is in transmission connection with the stepping motor 61 through a coupling 69, the stepping motor 61 is mounted on the first mounting seat 64 through a bracket 70, the lead screw 62 sequentially passes through the first mounting seat 64, the limiting block 67, the nut seat 63 and the second mounting seat 65 and is in one-to-one rotatable fit, rotatable fit and rotatable fit with the first mounting seat 64, the limiting block 67, the nut seat 63 and the second mounting seat 65, The guide shaft 66 sequentially passes through the first mounting seat 64, the limiting block 67, the spring 68, the nut seat 63 and the second mounting seat 65 and is in one-to-one limit fit, slidable fit and limit fit with the first mounting seat 64, the limiting block 67, the nut seat 63 and the second mounting seat 65, the first mounting seat 64, the limiting block 67 and the second mounting seat 65 are fixedly mounted at corresponding positions of the rack 1 at intervals, and two ends of the first driven roller shaft 221 are in one-to-one correspondence and rotatably mounted on the nut seats 63 of the first linear driving assembly 24 and the second linear driving assembly 25 through two bearings; both ends of the second driven roller shaft 321 are rotatably mounted to the nut seats 63 of the third linear driving unit 34 and the fourth linear driving unit 35 through two bearings in a one-to-one correspondence manner.
In the above tape-pulling device, more specifically, as shown in fig. 3, two ends of the first driving roller shaft 211 are one-to-one corresponding and rotatably mounted to the respective second mounting seats 65 of the first linear driving assembly 24 and the second linear driving assembly 25 through two bearings; as shown in fig. 4, both ends of the second drive roller shaft 311 are rotatably mounted to the second mounting seats 65 of the third and fourth linear drive units 34 and 35 through two bearings in a one-to-one correspondence manner.
In addition, the invention also provides a thermal transfer printer which comprises the tape stretching device for the thermal transfer printer.
The thermal transfer printer of the invention also has the advantages of the tape stretching device because the tape stretching device for the thermal transfer printer of the invention is included.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. An adhesive tape stretching device for a thermal transfer printer, the adhesive tape stretching device comprising: the automatic adhesive tape pulling machine comprises a rack (1), a first clamping and conveying assembly (2) used for clamping and conveying an adhesive tape (4), a second clamping and conveying assembly (3) used for clamping and conveying the adhesive tape (4), a first sensor and a controller with a clamping and conveying mode and an adhesive tape pulling mode, wherein the first clamping and conveying assembly (2) and the second clamping and conveying assembly (3) are arranged on the rack (1) at intervals and are located at an adhesive tape input end and an adhesive tape output end in a one-to-one correspondence mode, the first sensor is used for detecting the tightness of the adhesive tape (4) between the first clamping and conveying assembly (2) and the second clamping and conveying assembly (3) in real time, the controller is electrically connected with the first clamping and conveying assembly (2), the second clamping and conveying assembly (3) and the first sensor respectively, when the controller is located in the clamping and conveying mode, the controller controls the first clamping conveying assembly (2) and the second clamping conveying assembly (3) to synchronously clamp and convey the rubber belt (4) at a constant speed; when the device is in a tape stretching mode, the controller controls the first clamping conveying assembly (2) and the second clamping conveying assembly (3) to clamp and convey the adhesive tapes (4) in a speed difference mode so as to tighten the adhesive tapes (4) between the first clamping conveying assembly (2) and the second clamping conveying assembly (3), and when the first sensor detects that the tightness of the adhesive tapes (4) between the first clamping conveying assembly (2) and the second clamping conveying assembly (3) is larger than or equal to a preset value, the controller is switched from the tape stretching mode to the clamping conveying mode; when the clamping conveying mode is used for clamping the conveying adhesive tape (4) for a preset distance, the controller is changed into the tape stretching mode from the clamping conveying mode.
2. The tape stretching device for a thermal transfer printer according to claim 1, wherein when in the tape stretching mode, the controller cyclically controls the first grip conveying assembly (2) to grip the adhesive tape (4) in the reverse direction and in the forward direction at a first reverse grip conveying speed and a first forward grip conveying speed and cyclically controls the second grip conveying assembly (3) to grip the adhesive tape (4) in the reverse direction and in the forward direction at a second reverse grip conveying speed and a second forward grip conveying speed, the first reverse grip conveying speed being greater than the second reverse grip conveying speed, and the first forward grip conveying speed being less than the second forward grip conveying speed.
3. The tape stretching device for a thermal transfer printer according to any one of claims 1 to 2, characterized in that said frame (1) comprises a left mounting plate (11), a right mounting plate (12) and a plurality of connecting rods (13) which firmly connect said left mounting plate (11) and said right mounting plate (12).
4. The tape stretching device for the thermal transfer printer according to claim 3, wherein the first clamping conveying assembly (2) comprises a first driving roller set (21), a first driven roller set (22), a first driving assembly (23), a first linear driving assembly (24) and a second linear driving assembly (25), two ends of the first driving roller set (21) are correspondingly and rotatably mounted on the left mounting plate (11) and the right mounting plate (12), the first driving assembly (23) is in transmission connection with the first driving roller set (21) so as to drive the first driving roller set (21) to rotate, two ends of the first driven roller set (22) are correspondingly and rotatably mounted on respective driven ends of the first linear driving assembly (24) and the second linear driving assembly (25), and the first linear driving assembly (24) and the second linear driving assembly (25) are correspondingly mounted on the first driving roller set (21) and the second driving roller set (25) respectively -on the left mounting plate (11) and the right mounting plate (12) and for driving the first set of driven rollers (22) synchronously against and away from the first set of driving rollers (21); second centre gripping conveying component (3) includes second drive roller set (31), driven roller set (32) of second, second drive assembly (33), third straight line drive assembly (34) and fourth straight line drive assembly (35), the both ends one-to-one of second drive roller set (31) and rotationally install in left side mounting panel (11) and right side mounting panel (12), second drive assembly (33) with second drive roller set (31) transmission is connected, so that the drive second drive roller set (31) is rotatory, the both ends one-to-one of driven roller set (32) of second and rotationally install in third straight line drive assembly (34) and the respective driven end of fourth straight line drive assembly (35), third straight line drive assembly (34) with fourth straight line drive assembly (35) one-to-one install in left side mounting panel (11) and right side mounting panel (12) and be used for synchronous drive the driven of second The roller group (32) is close to and far away from the second driving roller group (31), and the controller is respectively electrically connected with the first driving assembly (23), the first linear driving assembly (24), the second linear driving assembly (25), the second driving assembly (33), the third linear driving assembly (34) and the fourth linear driving assembly (35).
5. The tape stretching device for a thermal transfer printer according to claim 4, wherein the first nip conveyor assembly (2) further comprises a second sensor electrically connected to the controller for detecting whether the first driven roller set (22) abuts against the first driving roller set (21), and the second nip conveyor assembly (3) further comprises a third sensor electrically connected to the controller for detecting whether the second driven roller set (32) abuts against the second driving roller set (31).
6. The tape stretching device for a thermal transfer printer according to claim 4, wherein the first driving assembly (23) and the second driving assembly (33) each comprise a servo motor (51) and a reducer (52) in transmission connection with the servo motor (51), and the first sensor is a torque sensor built in the servo motor (51).
7. The tape stretching device for the thermal transfer printer according to claim 4, wherein the first driving roller group (21) comprises a first driving roller shaft (211) and a first driving roller (212) which is installed on the first driving roller shaft (211) in a transmission connection manner, two ends of the first driving roller shaft (211) are installed on the left installation plate (11) and the right installation plate (12) in a one-to-one correspondence and rotatable manner, the first driven roller group (22) comprises a first driven roller shaft (221) and a first driven roller (222) which is installed on the first driven roller shaft (221), two ends of the first driven roller shaft (221) are installed on respective driven ends of the first linear driving component (24) and the second linear driving component (25) in a one-to-one correspondence and rotatable manner; the second driving roller group (31) comprises a second driving roller shaft (311) and a second driving roller wheel (312) which is installed on the second driving roller shaft (311) in a transmission connection mode, two ends of the second driving roller shaft (311) correspond to each other one by one and are installed on the left installation plate (11) and the right installation plate (12) in a rotating mode, the second driven roller group (32) comprises a second driven roller shaft (321) and a second driven roller wheel (322) which is installed on the second driven roller shaft (321), two ends of the second driven roller shaft (321) correspond to each other one by one and are installed on the third linear driving assembly (34) and the fourth linear driving assembly (35) respectively and driven ends.
8. The tape stretching device for the thermal transfer printer according to claim 7, wherein the first linear driving assembly (24), the second linear driving assembly (25), the third linear driving assembly (34) and the fourth linear driving assembly (35) each comprise a stepping motor (61), a lead screw (62), a nut seat (63), a first mounting seat (64), a second mounting seat (65), a plurality of guide shafts (66), a stop block (67) and a plurality of springs (68), the lead screw (62) is in transmission connection with the stepping motor (61) through a coupling (69), the stepping motor (61) is mounted on the first mounting seat (64) through a bracket (70), and the lead screw (62) sequentially passes through the first mounting seat (64), the stop block (67), the nut seat (63) and the second mounting seat (65) and is in communication with the first mounting seat (64), The limiting block (67), the nut seat (63) and the second mounting seat (65) are in one-to-one corresponding rotatable fit, threaded fit and rotatable fit, the guide shaft (66) sequentially penetrates through the first mounting seat (64), the limiting block (67), the spring (68), the nut seat (63) and the second mounting seat (65) and is in one-to-one corresponding limited fit, slidable fit and limited fit with the first mounting seat (64), the limiting block (67), the nut seat (63) and the second mounting seat (65), the first mounting seat (64), the limiting block (67) and the second mounting seat (65) are fixedly mounted at corresponding positions of the rack (1) at intervals, two ends of the first driven roller shaft (221) are in one-to-one corresponding and rotatable mounting on the first linear driving assembly (24) and the second linear driving assembly through two bearings A nut seat (63) of each drive unit (25); two ends of the second driven roller shaft (321) are correspondingly and rotatably arranged on the nut seats (63) of the third linear driving assembly (34) and the fourth linear driving assembly (35) through two bearings.
9. The tape stretching device for a thermal transfer printer according to claim 8, wherein both ends of the first driving roller shaft (211) are one-to-one and rotatably mounted to the respective second mounting seats (65) of the first linear driving assembly (24) and the second linear driving assembly (25) through two bearings; two ends of the second driving roller shaft (311) are in one-to-one correspondence through two bearings and are rotatably installed on the second installation seats (65) of the third linear driving assembly (34) and the fourth linear driving assembly (35).
10. A thermal transfer printer, characterized in that it comprises a tape-pulling device for a thermal transfer printer according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020505183.3U CN212711949U (en) | 2020-04-08 | 2020-04-08 | Adhesive tape stretching device for thermal transfer printer and thermal transfer printer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020505183.3U CN212711949U (en) | 2020-04-08 | 2020-04-08 | Adhesive tape stretching device for thermal transfer printer and thermal transfer printer |
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| CN212711949U true CN212711949U (en) | 2021-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061843A (en) * | 2020-04-08 | 2020-12-11 | 湖南鼎一致远科技发展有限公司 | Adhesive tape stretching device for thermal transfer printer and thermal transfer printer |
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- 2020-04-08 CN CN202020505183.3U patent/CN212711949U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061843A (en) * | 2020-04-08 | 2020-12-11 | 湖南鼎一致远科技发展有限公司 | Adhesive tape stretching device for thermal transfer printer and thermal transfer printer |
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