A cylindrical contact friction driven label detection device

Abstract

The present invention belongs to the technical field of thermal printers, and in particular, relates to a cylindrical contact friction driven label detection device, comprising: a base and a bottom paper, the bottom paper is arranged on the top surface of the base, and a plurality of labels are arranged on the top surface of the bottom paper; two first slide grooves, the two first slide grooves are symmetrically opened on the base, a first slider is slidably connected in the first slide grooves, one side of one of the first sliders is fixedly connected to a speed sensor, a detection wheel is rotatably connected between the two first sliders, and one end of the detection wheel passes through one of the first sliders and extends into an inner cavity of the speed sensor; a plurality of spring grooves, the plurality of spring grooves are respectively opened on the top surfaces of the two first sliders, and are respectively connected to the inner cavities of the two first slide grooves, and a plurality of springs are respectively fixedly connected in the plurality of spring grooves. The present invention solves the problem that although the detection accuracy of the existing photoelectric switch can reach more than 99%, there is still a situation of missed detection of labels, which may be complained by customers.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal printers, and in particular relates to a cylindrical contact friction driven label detection device. Background Art

[0002] The working principle of a thermal printer is relatively simple and efficient. A semiconductor heating element is installed on the print head. When the print head heats up and contacts the thermal printing paper, the required pattern or text can be printed. This printing method is to heat the thermochromic coating on the thermal paper to cause a chemical reaction, so that the image or text appears in the heated area. This chemical reaction takes place at a certain temperature, and high temperature will accelerate this chemical reaction. Specifically, when the temperature is below 60°C, it takes a long time for the paper to turn dark; when the temperature is 200°C, this reaction will be completed within a few microseconds.

[0003] When the existing thermal printers print label paper (labels are separated into independent pieces of different specifications and pasted on the base paper, with a spacing of 2-3mm between each label and fed in rolls), a detection mechanism is required to detect the interval between two labels during the printing process in order to notify the print head when to work; the existing printers generally install a reflective photoelectric sensor on the upper paper path to determine the starting position of the interval between the two labels by the change of the reflection value (the interval between the paper tape when there is a label will be about 0.10mm thicker than the interval between the paper tape when there is no label), and although the detection accuracy of the existing photoelectric switch can reach more than 99%, there are still cases of missed detection of labels, which may be complained by customers. In view of this, we propose a cylindrical contact friction driven label detection device. Summary of the invention

[0004] The object of the present invention is to provide a cylindrical contact friction driven label detection device to solve the problems raised in the above background technology.

[0005] In view of this, the present invention provides a cylindrical contact friction driven label detection device, comprising:

[0006] A base and a bottom paper, wherein the bottom paper is arranged on the top surface of the base, and a plurality of labels are arranged on the top surface of the bottom paper;

[0007] Two first slide grooves, the two first slide grooves are symmetrically arranged on the base, a first slider is slidably connected in the first slide groove, a speed sensor is fixedly connected to one side of one of the first sliders, a detection wheel is rotatably connected between the two first sliders, and one end of the detection wheel passes through one of the first sliders and extends into the inner cavity of the speed sensor;

[0008] A plurality of spring grooves, wherein the plurality of spring grooves are respectively opened on the top surfaces of the two first sliding blocks and are respectively connected to the inner cavities of the two first sliding grooves, wherein a plurality of springs are respectively fixedly connected in the plurality of spring grooves, and the top ends of the plurality of springs are respectively fixed to the top surfaces of the inner walls of the two first sliding grooves;

[0009] A plurality of second slide grooves, wherein the plurality of second slide grooves are provided in the base and communicate with the inner cavities of the two first slide grooves, and two slide plates are respectively slidably connected between the plurality of second slide grooves, and the two slide plates are respectively attached to the bottom surfaces of the two first slide blocks;

[0010] A plurality of one-way threaded rods, wherein the plurality of one-way threaded rods are rotatably connected to the inner walls of the plurality of second slide grooves and are respectively threadedly connected to the two slide plates;

[0011] A driving assembly, which is located in the base and is used to drive the two slides to move;

[0012] A third slide groove, wherein the third slide groove is provided on the top surface of the base, wherein two second sliders are slidably connected in the third slide groove, and two limit plates are respectively fixedly connected to the top ends of the two second sliders, and the two limit plates are respectively located on both sides of the bottom paper;

[0013] The adjusting component is located in the base and is used to drive the two second sliding blocks to move.

[0014] Based on the above structure, by setting the first sliding groove and the first sliding block, it is ensured that the first sliding block can slide in the first sliding groove, and by setting the detection wheel, it is ensured that the detection wheel can rotate between the two first sliding blocks, and by setting the spring groove, the spring and the sliding block, it is ensured that the multiple springs can respectively drive the two first sliding blocks to be tightly attached to the two sliding blocks respectively by squeezing the bottom surfaces of the inner walls of the multiple spring grooves, and the detection wheel is always driven to be attached to the top surface of the label by the two first sliding blocks, and by setting the speed sensor, it is ensured that when the bottom paper moves to the appropriate position, the detection wheel will be located at the interval between the corresponding two labels, and because there is no label at the interval, the detection wheel will be located at the interval between the corresponding two labels. The measuring wheel will not contact with the label to generate friction, so that the measuring wheel will stall briefly at the interval between the corresponding two labels. When the measuring wheel stalls, the speed sensor will detect that the measuring wheel has stalled, and convert the slight change in speed caused by the stall into an electrical signal to notify the printing main control to determine whether the print head is working properly. When the measuring wheel stalls, the speed sensor will detect that the measuring wheel has stalled, and convert the slight change in speed caused by the stall into an electrical signal to notify the printing main control to determine whether the print head is working properly. By setting the second slide and the slide, it is ensured that the two slides can slide between multiple second slides respectively, so that the two slides can adjust the two The height of the first slider is ensured by the drive assembly and the one-way threaded rod, so that the user can drive the multiple one-way threaded rods to rotate through the drive assembly, so that the two sliders can be respectively affected by the threads of the multiple one-way threaded rods, and slide along the multiple second slide grooves respectively, so that the two sliders can respectively drive the two first sliders to slide in the two first slide grooves, so that the user can adjust the height of the two sliders according to the thickness of the label, and the two sliders can respectively adjust the height of the two first sliders, so that the two first sliders can adjust the height of the detection wheel, ensuring that the user can adjust the position of the detection wheel according to the thickness of multiple labels. The detection wheel can only be in contact with the top surfaces of multiple labels by adjusting the third slide groove, the second slider and the limit plate. The two second sliders can respectively drive the two limit plates to move along the third slide groove. The adjustment component can be used to ensure that the user can drive the two second sliders to move closer to or away from each other through the adjustment component. When the two second sliders move, the two second sliders can respectively drive the two limit plates to move, so that the two limit plates can limit the position of the bottom paper to prevent the bottom paper from shifting when moving on the base, causing multiple labels to tilt, affecting the rotation speed of the detection wheel and the detection results of the speed sensor.

[0015] In the above technical solution, further, the driving component includes:

[0016] A plurality of gear grooves, wherein the plurality of gear grooves are provided in the base and are respectively connected with the plurality of second slide grooves, wherein the first bevel gear and the second bevel gear are rotatably connected in the gear groove, and the first bevel gear and the second bevel gear are meshed with each other, and one end of the first bevel gear passes through the inner wall of the gear groove and extends into the second slide groove to be fixed with one end of the one-way threaded rod;

[0017] Two through slots, the two through slots are opened in the base and are respectively connected to the plurality of gear slots, two connecting rods are rotatably connected in the two through slots, and two ends of the two connecting rods extend into the plurality of gear slots and are respectively fixed to the plurality of second bevel gears;

[0018] A first movable groove, which is provided in the base and communicates with the two through grooves, wherein two first sprockets are rotatably connected in the first movable groove, and the two first sprockets are respectively fixed to the circumference of the two connecting rods, and a first chain is meshed between the two first sprockets;

[0019] a second movable groove, the second movable groove is provided in the base and communicated with one of the through grooves, a second sprocket and a third sprocket are rotatably connected in the second movable groove, and the second sprocket is fixed to the circumference of one of the connecting rods, and a second chain is meshed between the second sprocket and the third sprocket;

[0020] The rotating groove is arranged on the inner wall of the second movable groove and is connected to the outside. A rotating rod is rotatably connected in the rotating groove, and one end of the rotating rod extends into the second movable groove and is fixed to the third sprocket.

[0021] In this technical solution, it is ensured that the two first sliding blocks can drive the detection wheel to stick to the top surfaces of multiple labels of any thickness.

[0022] In the above technical solution, further, one end of the first bevel gear is rotatably connected to the second sliding groove.

[0023] In this technical solution, it is ensured that one end of the first bevel gear can rotate normally in the second sliding groove.

[0024] In the above technical solution, further, both ends of the two connecting rods are rotatably connected to a plurality of gear grooves respectively.

[0025] In this technical solution, it is ensured that both ends of the two connecting rods can rotate normally in the multiple gear grooves respectively.

[0026] In the above technical solution, further, one end of the rotating rod is rotatably connected to the second movable groove.

[0027] In this technical solution, it is ensured that one end of the rotating rod can rotate normally in the second movable groove.

[0028] In the above technical solution, further, the adjustment component includes:

[0029] A bidirectional threaded rod, which is rotatably connected to the inner wall of the third slide groove and is threadedly connected to the two second sliding blocks, and one end of the bidirectional threaded rod passes through the inner wall of the third slide groove and extends to the outside and is rotatably connected to the third slide groove, and one end of the bidirectional threaded rod is fixedly connected to a rotating wheel, and the rotating wheel is located outside and is rotatably connected to the base.

[0030] In this technical solution, it is ensured that the user can adjust the distance between the two limit plates according to the width of the base paper.

[0031] In the above technical solution, further, the two sections of threads on the bidirectional threaded rod have opposite rotation directions.

[0032] In this technical solution, it is ensured that when the bidirectional threaded rod rotates, the two second sliding blocks are respectively acted upon by the two sections of threads on the bidirectional threaded rod, and move closer to or farther away from each other along the third sliding groove.

[0033] In the above technical solution, further, the threads on the multiple one-way threaded rods have the same rotation direction.

[0034] In this technical solution, it is ensured that when the multiple one-way threaded rods rotate, the two slides will be moved respectively under the action of the threads of the multiple one-way threaded rods.

[0035] In the above technical solution, further, the detection wheel is attached to the top surface of one of the labels.

[0036] In this technical solution, it is ensured that when one of the labels passes through the detection wheel, the detection wheel can be rotated by the friction force of one of the labels.

[0037] In the above technical solution, further, the speed sensor is electrically connected to a main control component inside the thermal printer.

[0038] In this technical solution, it is ensured that the speed sensor can convert the slight change in rotation speed caused by the stall of the detection wheel into an electrical signal to notify the printing main control to determine the working time of the print head, so that the thermal printer can accurately print multiple labels.

[0039] The beneficial effects of the present invention are:

[0040] 1. The cylindrical contact friction driven label detection device ensures that the first slide block can slide in the first slide block by setting the first slide block and the first slide block, ensures that the detection wheel can rotate between the two first slide blocks by setting the detection wheel, ensures that the multiple springs can respectively drive the two first slide blocks to be closely attached to the two slide blocks by squeezing the bottom surfaces of the inner walls of the multiple spring grooves by setting the spring grooves, and drives the detection wheel to always be attached to the top surface of the label by the two first slide blocks, and ensures that when the bottom paper moves to the appropriate position by setting the speed sensor, the detection wheel will be located at the interval between the corresponding two labels, because there is no label at the interval. The reason is that the detection wheel will not contact with the label to generate friction, causing the detection wheel to stall briefly in the interval between the two corresponding labels. When the detection wheel stalls, the speed sensor will detect that the detection wheel has stalled, and convert the slight change in speed caused by the stall into an electrical signal to notify the printing main control to determine whether the print head is working properly. When the detection wheel stalls, the speed sensor will detect that the detection wheel has stalled, and convert the slight change in speed caused by the stall into an electrical signal to notify the printing main control to determine whether the print head is working properly. This solves the problem that although the existing photoelectric switch detection accuracy can reach more than 99%, there are still cases of missed detection of labels, which may be complained by customers.

[0041] 2. The cylindrical contact friction driven label detection device ensures that the two slides can slide between the multiple second slides respectively through the set second slide grooves and slide plates, so that the two slides can adjust the heights of the two first slide blocks respectively, and ensures that the user can drive the multiple one-way threaded rods to rotate through the driving assembly and the one-way threaded rod, so that the two slides can be respectively affected by the threads of the multiple one-way threaded rods and slide between the multiple second slide grooves respectively, so that the two slides can respectively drive the two first slide blocks to slide in the two first slide grooves, so that the user can adjust the height of the two slides according to the thickness of the label, and the two slides can respectively adjust the height of the two first slide blocks, so that the two first slide blocks can adjust the height of the detection wheel, ensuring that the user can adjust the position of the detection wheel according to the thickness of the multiple labels, so that the detection wheel can only be attached to the top surface of the multiple labels.

[0042] 3. The cylindrical contact friction driven label detection device ensures that the two second sliders can respectively drive the two limit plates to move along the third slider by means of the third slider, the second slider and the limit plate. The adjustment component can ensure that the user can drive the two second sliders to move closer to or away from each other through the adjustment component. When the two second sliders move, the two second sliders can respectively drive the two limit plates to move, so that the two limit plates can limit the position of the bottom paper to prevent the bottom paper from shifting when moving on the base, causing multiple labels to tilt, affecting the rotation speed of the detection wheel and the detection result of the speed sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0044] Figure 2 It is one of the schematic diagrams of the internal structure of the base of the present invention;

[0045] Figure 3 It is a schematic diagram of the explosion structure of the area of ​​the present invention;

[0046] Figure 4 It is a schematic cross-sectional structural diagram of the base of the present invention;

[0047] Figure 5 This is the second schematic diagram of the internal structure of the base of the present invention.

[0048] The symbols in the figure are:

[0049] 1. Base; 2. Bottom paper; 3. Label; 4. First slide groove; 5. First slider; 6. Speed ​​sensor; 7. Detection wheel; 8. Spring groove; 9. Spring; 10. Second slide groove; 11. Slide plate; 12. One-way threaded rod; 13. Third slide groove; 14. Second slider; 15. Limit plate; 16. Gear groove; 17. First bevel gear; 18. Second bevel gear; 19. Through groove; 20. Connecting rod; 21. First movable groove; 22. First sprocket; 23. First chain; 24. Second movable groove; 25. Second sprocket; 26. Third sprocket; 27. Second chain; 28. Rotating groove; 29. ​​Rotating rod; 30. Two-way threaded rod; 31. Rotating wheel. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0051] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0052] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0053] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0054] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0055] Embodiment 1:

[0056] See also Figure 1 - Figure 5 As shown, this embodiment provides a cylindrical contact friction driven label detection device, including:

[0057] A base 1 and a bottom paper 2, wherein the bottom paper 2 is arranged on the top surface of the base 1, and a plurality of labels 3 are arranged on the top surface of the bottom paper 2;

[0058] Two first slide grooves 4, the two first slide grooves 4 are symmetrically opened on the base 1, and the first slide grooves 4 are slidably connected with the first sliders 5, one side of one of the first sliders 5 is fixedly connected with the speed sensor 6, and a detection wheel 7 is rotatably connected between the two first sliders 5, and one end of the detection wheel 7 passes through one of the first sliders 5 and extends into the inner cavity of the speed sensor 6;

[0059] A plurality of spring grooves 8, the plurality of spring grooves 8 are respectively opened on the top surfaces of the two first sliding blocks 5, and are respectively communicated with the inner cavities of the two first sliding grooves 4, a plurality of springs 9 are respectively fixedly connected in the plurality of spring grooves 8, and the top ends of the plurality of springs 9 are respectively fixed to the top surfaces of the inner walls of the two first sliding grooves 4;

[0060] A plurality of second slide grooves 10, the plurality of second slide grooves 10 are opened in the base 1 and communicate with the inner cavities of the two first slide grooves 4, and two slide plates 11 are slidably connected between the plurality of second slide grooves 10, and the two slide plates 11 are respectively attached to the bottom surfaces of the two first slide blocks 5;

[0061] A plurality of one-way threaded rods 12, wherein the plurality of one-way threaded rods 12 are rotatably connected to the inner walls of the plurality of second slide grooves 10 and are respectively threadedly connected to the two slide plates 11;

[0062] A driving assembly, which is located in the base 1 and is used to drive the two slides 11 to move;

[0063] A third slide groove 13 is provided on the top surface of the base 1. Two second sliders 14 are slidably connected in the third slide groove 13. Two limit plates 15 are fixedly connected to the top ends of the two second sliders 14, and the two limit plates 15 are respectively located on both sides of the bottom paper 2;

[0064] The adjusting component is located in the base 1 and is used to drive the two second sliding blocks 14 to move.

[0065] Embodiment 2:

[0066] This embodiment provides a cylindrical contact friction driven label detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0067] A plurality of gear grooves 16 are provided in the base 1 and are respectively connected with the plurality of second slide grooves 10. A first bevel gear 17 and a second bevel gear 18 are rotatably connected in the gear groove 16, and the first bevel gear 17 and the second bevel gear 18 are meshed with each other. One end of the first bevel gear 17 passes through the inner wall of the gear groove 16 and extends into the second slide groove 10 to be fixed with one end of the one-way threaded rod 12.

[0068] Two through slots 19, the two through slots 19 are provided in the base 1 and are respectively connected to the plurality of gear slots 16, two connecting rods 20 are respectively rotatably connected in the two through slots 19, and two ends of the two connecting rods 20 respectively extend into the plurality of gear slots 16 and are respectively fixed to the plurality of second bevel gears 18;

[0069] A first movable groove 21, which is provided in the base 1 and communicates with the two through grooves 19. Two first sprocket wheels 22 are rotatably connected in the first movable groove 21, and the two first sprocket wheels 22 are respectively fixed to the circumference of the two connecting rods 20, and a first chain 23 is meshed between the two first sprocket wheels 22;

[0070] A second movable groove 24, which is provided in the base 1 and communicates with one of the through grooves 19, wherein a second sprocket 25 and a third sprocket 26 are rotatably connected in the second movable groove 24, and the second sprocket 25 is fixed to the circumference of one of the connecting rods 20, and a second chain 27 is meshed between the second sprocket 25 and the third sprocket 26;

[0071] The rotating groove 28 is provided on the inner wall of the second movable groove 24 and communicated with the outside. A rotating rod 29 is rotatably connected in the rotating groove 28 , and one end of the rotating rod 29 extends into the second movable groove 24 and is fixed to the third sprocket 26 .

[0072] Among them, when multiple labels 3 are thicker or thinner, the user rotates the rotating rod 29 by hand, so that the rotating rod 29 drives the third sprocket 26 to rotate in the second movable groove 24, so that the third sprocket 26 drives the second sprocket 25 to rotate in the second movable groove 24 through the second chain 27, and the second sprocket 25 drives one of the connecting rods 20 to rotate in one of the through grooves 19. When one of the connecting rods 20 rotates, one of the connecting rods 20 will drive one of the first sprockets 22 to rotate in the first movable groove 21, so that one of the first sprockets 22 drives another first sprocket 22 to rotate through the first chain 23, and the other first sprocket 22 drives the other connecting rod 20 to rotate in another through groove 19. When the two connecting rods 20 rotate, the two ends of the two connecting rods 20 will respectively drive the multiple second bevel gears 18 to rotate in the multiple gear grooves 16, so that the multiple second bevel gears 18 are The plurality of first bevel gears 17 are driven to rotate in the plurality of gear grooves 16. When the plurality of gear grooves 16 rotate, the plurality of gear grooves 16 will respectively drive the plurality of one-way threaded rods 12 to rotate in the plurality of second slide grooves 10. When the plurality of one-way threaded rods 12 rotate, the two slide plates 11 will be respectively affected by the threads of the plurality of one-way threaded rods 12 and move along the plurality of second slide grooves 10. When the two slide plates 11 move, the two slide plates 11 will respectively drive the two first sliders 5 to move in the two first slide grooves 4, so that the two first sliders 5 can adjust the height of the detection wheel 7 according to the thickness of the plurality of labels 3. When the two first sliders 5 move to the appropriate position, the two first sliders 5 will respectively be affected by the elastic force of the plurality of springs 9 to drive the detection wheel 7 to always be in contact with the top surface of the label 3, thereby ensuring that the two first sliders 5 can drive the detection wheel 7 to be in contact with the top surface of multiple labels 3 of any thickness.

[0073] Embodiment 3:

[0074] This embodiment provides a cylindrical contact friction driven label detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: one end of the first bevel gear 17 is rotatably connected to the second slide groove 10.

[0075] Here, it is ensured that one end of the first bevel gear 17 can rotate normally in the second sliding groove 10 .

[0076] Embodiment 4:

[0077] This embodiment provides a cylindrical contact friction driven label detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: both ends of the two connecting rods 20 are rotatably connected to the multiple gear grooves 16 respectively.

[0078] Here, it is ensured that both ends of the two connecting rods 20 can rotate normally in the plurality of gear grooves 16 .

[0079] Embodiment 5:

[0080] This embodiment provides a cylindrical contact friction driven label detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: one end of the rotating rod 29 is rotatably connected to the second movable groove 24.

[0081] Here, it is ensured that one end of the rotating rod 29 can rotate normally in the second movable groove 24 .

[0082] Embodiment 6:

[0083] This embodiment provides a cylindrical contact friction driven label detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the adjustment component includes:

[0084] A bidirectional threaded rod 30 is rotatably connected to the inner wall of the third slide groove 13 and is threadedly connected to the two second sliding blocks 14, and one end of the bidirectional threaded rod 30 passes through the inner wall of the third slide groove 13 and extends to the outside and is rotatably connected to the third slide groove 13, and one end of the bidirectional threaded rod 30 is fixedly connected to a rotating wheel 31, and the rotating wheel 31 is located outside and is rotatably connected to the base 1.

[0085] When in use, the user rotates the rotating wheel 31 by hand, so that the rotating wheel 31 drives the bidirectional threaded rod 30 to rotate in the third slide groove 13, so that the two second sliders 14 are acted upon by the threads of the bidirectional threaded rod 30, and move closer to or away from each other along the third slide groove 13, so that the two second sliders 14 respectively drive the two limit plates 15 closer to or away from each other, ensuring that the user can adjust the distance between the two limit plates 15 according to the width of the base paper 2.

[0086] Embodiment 7:

[0087] This embodiment provides a cylindrical contact friction driven label detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the two sections of threads on the bidirectional threaded rod 30 have opposite rotation directions.

[0088] It is ensured that when the bidirectional threaded rod 30 rotates, the two second sliding blocks 14 are respectively acted upon by the two threads on the bidirectional threaded rod 30 , and move closer to or farther from each other along the third sliding groove 13 .

[0089] Embodiment 8:

[0090] This embodiment provides a cylindrical contact friction driven label detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the threads on the multiple one-way threaded rods 12 have the same rotation direction.

[0091] It is ensured that when the multiple one-way threaded rods 12 rotate, the two slide plates 11 are respectively moved by the threads of the multiple one-way threaded rods 12 .

[0092] Embodiment 9:

[0093] This embodiment provides a cylindrical contact friction driven label detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the detection wheel 7 is attached to the top surface of one of the labels 3.

[0094] Here, it is ensured that when one of the tags 3 passes through the detection wheel 7 , the detection wheel 7 can be rotated by the friction force of one of the tags 3 .

[0095] Embodiment 10:

[0096] This embodiment provides a cylindrical contact friction driven label detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the speed sensor 6 is electrically connected to the main control component inside the thermal printer.

[0097] Among them, it is ensured that the speed sensor 6 can convert the slight change in the rotation speed caused by the stall of the detection wheel 7 into an electrical signal to notify the printing main control to determine the working time of the print head, so that the thermal printer can accurately print multiple labels 3.

[0098] When in use, the user rotates the wheel 31 by hand, allowing the wheel 31 to drive the bidirectional threaded rod 30 to rotate in the third slide groove 13, so that the two second sliders 14 are affected by the threads of the bidirectional threaded rod 30, and move closer to or away from each other along the third slide groove 13, allowing the two second sliders 14 to respectively drive the two limit plates 15 closer to or away from each other, ensuring that the user can adjust the distance between the two limit plates 15 according to the width of the bottom paper 2 to prevent the bottom paper 2 from offset when moving on the top surface of the base 1. Then the user starts the thermal printer and allows the roll feed roller on the thermal printer to drive the bottom paper 2 to move. When the bottom paper 2 moves, the bottom paper 2 will drive multiple labels 3 to move. When the bottom paper 2 drives multiple labels 3 through When passing under the detection wheel 7, one of the labels 3 will drive the detection wheel 7 to rotate between the two first sliders 5 through the friction between the detection wheel 7 and the detection wheel 7. When the bottom paper 2 continues to move to the appropriate position, the detection wheel 7 will be located at the interval between the two corresponding labels 3. Since there is no label 3 in the interval, the detection wheel 7 will not contact with the label 3 to generate friction, so that the detection wheel 7 will briefly stall at the interval between the two corresponding labels 3. When the detection wheel 7 stalls, the speed sensor 6 will detect that the detection wheel 7 has stalled, and convert the slight change in speed caused by the stall into an electrical signal to notify the printing main control to determine the working time of the print head, so that the thermal printer can accurately print multiple labels 3.

[0099] When the multiple labels 3 are thicker or thinner, the user rotates the rotating rod 29 by hand, so that the rotating rod 29 drives the third sprocket 26 to rotate in the second movable groove 24, so that the third sprocket 26 drives the second sprocket 25 to rotate in the second movable groove 24 through the second chain 27, and the second sprocket 25 drives one of the connecting rods 20 to rotate in one of the through grooves 19. When one of the connecting rods 20 rotates, one of the connecting rods 20 will drive one of the first sprockets 22 to rotate in the first movable groove 21, so that one of the first sprockets 22 drives another first sprocket 22 to rotate through the first chain 23, and the other first sprocket 22 drives the other connecting rod 20 to rotate in another through groove 19. When the two connecting rods 20 rotate, the two ends of the two connecting rods 20 will respectively drive the multiple second bevel gears 18 to rotate in the multiple gear grooves 16, so that the multiple second bevel gears 18 are respectively Drive multiple first bevel gears 17 to rotate in multiple gear grooves 16. When the multiple gear grooves 16 rotate, the multiple gear grooves 16 will respectively drive the multiple one-way threaded rods 12 to rotate in the multiple second slide grooves 10. When the multiple one-way threaded rods 12 rotate, the two slides 11 will be respectively affected by the threads of the multiple one-way threaded rods 12 and move along the multiple second slide grooves 10. When the two slides 11 move, the two slides 11 will respectively drive the two first sliders 5 to move in the two first slide grooves 4, so that the two first sliders 5 can adjust the height of the detection wheel 7 according to the thickness of the multiple labels 3. When the two first sliders 5 move to the appropriate position, the two first sliders 5 will respectively be affected by the elastic force of the multiple springs 9 to drive the detection wheel 7 to always be in contact with the top surface of the label 3, ensuring that the two first sliders 5 can drive the detection wheel 7 to be in contact with the top surface of multiple labels 3 of any thickness.

[0100] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A cylindrical contact friction driven label detection device, characterized in that: include: A base (1) and a bottom paper (2), wherein the bottom paper (2) is arranged on the top surface of the base (1), and a plurality of labels (3) are arranged on the top surface of the bottom paper (2); Two first slide grooves (4), the two first slide grooves (4) are symmetrically arranged on the base (1), a first slider (5) is slidably connected in the first slide groove (4), a speed sensor (6) is fixedly connected to one side of one of the first sliders (5), a detection wheel (7) is rotatably connected between the two first sliders (5), and one end of the detection wheel (7) passes through one of the first sliders (5) and extends into the inner cavity of the speed sensor (6); A plurality of spring grooves (8), wherein the plurality of spring grooves (8) are respectively formed on the top surfaces of the two first sliding blocks (5) and are respectively connected to the inner cavities of the two first sliding grooves (4); a plurality of springs (9) are respectively fixedly connected to the plurality of spring grooves (8), and the top ends of the plurality of springs (9) are respectively fixed to the top surfaces of the inner walls of the two first sliding grooves (4); A plurality of second slide grooves (10), wherein the plurality of second slide grooves (10) are arranged in the base (1) and are connected to the inner cavities of the two first slide grooves (4); two slide plates (11) are respectively slidably connected between the plurality of second slide grooves (10), and the two slide plates (11) are respectively in contact with the bottom surfaces of the two first slide blocks (5); A plurality of one-way threaded rods (12), wherein the plurality of one-way threaded rods (12) are respectively rotatably connected to the inner walls of the plurality of second slide grooves (10) and are respectively threadedly connected to the two slide plates (11); A driving assembly, the driving assembly being located in the base (1) and being used to drive the two slide plates (11) to move; A third slide groove (13), wherein the third slide groove (13) is provided on the top surface of the base (1), wherein two second sliders (14) are slidably connected in the third slide groove (13), and two limit plates (15) are respectively fixedly connected to the top ends of the two second sliders (14), and the two limit plates (15) are respectively located on both sides of the bottom paper (2); An adjustment component, the adjustment component is located in the base (1) and is used to drive the two second slide blocks (14) to move; The drive assembly comprises: A plurality of gear grooves (16), wherein the plurality of gear grooves (16) are provided in the base (1) and are respectively connected to the plurality of second slide grooves (10); a first bevel gear (17) and a second bevel gear (18) are rotatably connected in the gear groove (16), and the first bevel gear (17) and the second bevel gear (18) are meshed with each other; one end of the first bevel gear (17) passes through the inner wall of the gear groove (16) and extends into the second slide groove (10) to be fixed to one end of the one-way threaded rod (12); Two through slots (19), the two through slots (19) being formed in the base (1) and respectively connected to the plurality of gear slots (16), two connecting rods (20) being rotatably connected to the two through slots (19), and two ends of the two connecting rods (20) respectively extending into the plurality of gear slots (16) and respectively fixed to the plurality of second bevel gears (18); a first movable groove (21), the first movable groove (21) being formed in the base (1) and communicating with the two through grooves (19), two first sprocket wheels (22) being rotatably connected in the first movable groove (21), and the two first sprocket wheels (22) being respectively fixed to the circumferential sides of the two connecting rods (20), and a first chain (23) being meshed between the two first sprocket wheels (22); a second movable groove (24), the second movable groove (24) being formed in the base (1) and communicating with one of the through grooves (19), a second sprocket (25) and a third sprocket (26) being rotatably connected in the second movable groove (24), the second sprocket (25) being fixed to the circumference of one of the connecting rods (20), and a second chain (27) being meshed between the second sprocket (25) and the third sprocket (26); A rotating groove (28) is provided on the inner wall of the second movable groove (24) and is in communication with the outside. A rotating rod (29) is rotatably connected in the rotating groove (28), and one end of the rotating rod (29) extends into the second movable groove (24) and is fixed to the third sprocket (26).

2. A cylindrical contact friction driven label detection device according to claim 1, characterized in that: One end of the first bevel gear (17) is rotatably connected to the second sliding groove (10).

3. A cylindrical contact friction driven label detection device according to claim 1, characterized in that: Both ends of the two connecting rods (20) are rotatably connected to a plurality of gear grooves (16) respectively.

4. A cylindrical contact friction driven label detection device according to claim 3, characterized in that: One end of the rotating rod (29) is rotatably connected to the second movable groove (24).

5. The cylindrical contact friction driven label detection device according to claim 1, characterized in that: The adjustment component comprises: A bidirectional threaded rod (30), wherein the bidirectional threaded rod (30) is rotatably connected to the inner wall of the third slide groove (13) and is threadedly connected to the two second sliders (14), and one end of the bidirectional threaded rod (30) passes through the inner wall of the third slide groove (13) and extends to the outside to be rotatably connected to the third slide groove (13), and one end of the bidirectional threaded rod (30) is fixedly connected to a rotating wheel (31), and the rotating wheel (31) is located outside and is rotatably connected to the base (1).

6. A cylindrical contact friction driven label detection device according to claim 5, characterized in that: The two sections of threads on the bidirectional threaded rod (30) have opposite rotation directions.

7. The cylindrical contact friction driven label detection device according to claim 1, characterized in that: The threads on the multiple one-way threaded rods (12) have the same direction of rotation.

8. The cylindrical contact friction driven label detection device according to claim 1, characterized in that: The detection wheel (7) is attached to the top surface of one of the labels (3).

9. The cylindrical contact friction driven label detection device according to claim 1, characterized in that: The speed sensor (6) is electrically connected to a main control component inside the thermal printer.

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