Printer using light source to reflect black label paper

Abstract

The invention belongs to the technical field of printers, and particularly relates to a printer using a light source to reflect black label paper, which comprises a printer body, a turning cover is rotatably mounted on the printer body, a connecting plate is fixedly mounted on the printer body and located on one side of the turning cover, a second cutting knife is fixedly mounted on the connecting plate, and a first cutting knife is slidably mounted on the turning cover; the driving assembly is located in the turning cover and used for driving the first cutting knife to move. The fixing assembly is located in the flip cover and used for fixing the flip cover; the supporting plate is fixedly installed at the bottom of an inner cavity of the printer body, a guide plate is fixedly installed at the top of the supporting plate, a rotating roller is rotationally installed in the printer body and located above the guide plate, and a thermosensitive piece is fixedly installed in the printer body and located on one side of the rotating roller. The problem of flip flat cable installation can be solved, and the material cost and the labor cost are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of printers, and in particular relates to a printer for detecting black mark paper by using light source reflection. Background Art

[0002] In office scenarios, printers can greatly improve work efficiency. Employees can quickly print out electronic documents for easy reading, modification, and discussion. Especially when paper materials are required for approval, signature, and other processes, the presence of printers is particularly important. At present, when printers detect black mark paper, they need to add a paper detector on the flip cover to detect the black mark of the paper (not printed). In this way, the flip cover needs to add a cable to pass through the flip cover, which is complicated in manufacturing process, long in installation time and high in cost. In view of this, we propose a printer that uses light source reflection to detect black mark paper. Summary of the invention

[0003] The object of the present invention is to provide a printer that uses light source reflection to detect black mark paper, so as to solve the problems raised in the above background technology.

[0004] In view of this, the present invention provides a printer for detecting black mark paper by using a light source reflection, comprising: A printer body, a flip cover is rotatably mounted on the printer body, a connecting plate is fixedly mounted on the printer body and located on one side of the flip cover, a second cutting knife is fixedly mounted on the connecting plate, and a first cutting knife is slidably mounted on the flip cover; A driving assembly, which is located in the flip cover and is used to drive the cutting knife to move; A fixing component, which is located in the flip cover and is used to fix the flip cover; A support plate, the support plate is fixedly installed at the bottom of the inner cavity of the printer body, a guide plate is fixedly installed on the top of the support plate, a rotating roller is rotatably installed in the printer body and above the guide plate, a thermal sheet is fixedly installed in the printer body and on one side of the rotating roller, an optical coupling PCB is fixedly installed on one side of the support plate, a transmitting lamp bead and a receiving lamp bead are fixedly installed in the support plate, a rectangular rod is fixedly installed in the printer body and on the other side of the support plate, a mounting plate is fixedly installed on the rectangular rod, a light-emitting column is fixedly installed on the mounting plate, and a black mark paper body is provided in the printer body. The power component is located in the printer body and is used to drive the rotating roller to rotate.

[0005] In the technical solution, when in use, the black label paper body is placed in the inner cavity of the printer body, and then the staff passes one end of the black label paper body between the light-emitting column and the support plate, and passes one end of the black label paper body between the rotating roller and the guide plate, and then passes one end of the black label paper body between the rotating roller and the thermal film, so that one end of the black label paper body is stretched to the outside, and then the staff can rotate and close the flip cover, and fix the position of the flip cover by the fixed component set, at this time, one end of the black label paper body will be located between the first cutting knife and the second cutting knife; When printing, the power assembly is set to drive the rotating roller to rotate. When the rotating roller rotates, it can drive one end of the black mark paper body to move toward the outside. At this time, the black mark paper body in the printer body will rotate on the two cylindrical blocks. During this process, the thermal film is always in contact with the black mark paper body, so that printing can be performed. In addition, the light emitted by the optical coupling PCB will be received by the receiving lamp bead. Subsequently, the light source after reception will be emitted by the emitting lamp bead to the light-emitting column. The black mark on the black mark paper body is detected by the light source, and then fed back to the sensor. In this way, the problem of installing the flip cover cable can be solved, and the material cost and labor cost can be reduced. After printing is completed, the driving component is set to drive the cutting knife 1 to move towards the direction close to the cutting knife 2, and when the cutting knife 1 overlaps with the cutting knife 2, one end of the black mark paper body can be cut.

[0006] In the above technical solution, further, the driving component includes: Two power chambers, both of which are opened in the flip cover, an electric push rod is fixedly installed in the power chamber, the output end of the electric push rod passes through one side of the power chamber and is tightly welded to the cutting knife, and the output shaft of the electric push rod is slidably connected to the power chamber.

[0007] In this technical solution, after printing is completed, the two electric push rods can be started, and the output shafts of the electric push rods will drive the cutter 1 to move towards the direction close to the cutter 2. When the cutter 1 overlaps with the cutter 2, one end of the black mark paper body can be cut.

[0008] In the above technical solution, further, the fixing assembly includes: A limit groove is provided in the flip cover, a limit block is slidably installed in the limit groove, one end of the limit block passes through one side of the limit groove and extends into the printer body, the other end of the limit block is fixedly installed with a spring fixed to the inner wall of the limit groove, and the upper end of the limit block passes through the top of the limit groove and extends to the outside.

[0009] In this technical solution, the staff rotates and closes the flip cover, and under the action of the rebound force of spring 1, spring 1 will push the limit block to move, so that one end of the limit block is inserted into the printer body, thereby fixing the position of the flip cover.

[0010] In the above technical solution, further, one end of the limit block is plugged into and matched with the printer body.

[0011] In this technical solution, it is ensured that one end of the limit block can be inserted into the printer body.

[0012] In the above technical solution, further, the power assembly includes: A protective shell is fixedly installed on one side of the printer body, a limit block is provided in the printer body, two gears are rotatably installed in the limit block, a motor is fixedly installed on one side of the printer body and located in the protective shell, an output end of the motor passes through one side of the printer body, extends into the cavity and is coaxially connected to one of the gears, and one end of the other gear passes through one side of the cavity, extends into the inner cavity of the printer body and is coaxially connected to the rotating roller.

[0013] In this technical solution, when the motor is started, the output shaft of the motor will drive one of the gears to rotate. Under the action of meshing, one of the gears will drive the other gear to rotate, and then the other gear will drive the rotating roller to rotate.

[0014] In the above technical solution, further, the output shaft of the motor is rotatably connected to the printer body and the cavity, one end of the other gear is rotatably connected to the printer body, and the two gears are meshed.

[0015] In this technical solution, it is ensured that the motor can operate normally, that one end of the gear can rotate in the printer body, and that under the action of meshing, the rotation of one gear can drive the rotation of the other gear.

[0016] In the above technical scheme, further, two through slots are provided in the printer body, cylindrical blocks are slidably installed in the through slots, the ends of the two cylindrical blocks that are close to each other respectively penetrate the opposite sides of the two through slots and extend into the inner cavity of the printer body, the ends of the two cylindrical blocks that are far away from each other are fixedly installed with two springs fixed to the inner walls of the corresponding through slots, a movable plate is fixedly installed on the top of the cylindrical block, a slide plate is fixedly installed on the top of the movable plate and located on the top of the printer body, two guide rods are fixedly installed in the through slot and above the cylindrical block, one end of the guide rods penetrates the movable plate, the black mark paper body is located on the two cylindrical blocks, and the black mark paper body is rotatably connected to the cylindrical blocks.

[0017] In the present technical solution, when in use, the staff first moves the two slides so that the two slides respectively drive the two movable plates away from each other. Subsequently, the two movable plates will respectively drive the two cylindrical blocks away from each other. Under the action of the guide rod, the displacement of the movable plates can be made more stable. At this time, the second spring will be squeezed and will shrink until the cylindrical block completely enters the through groove. Then, the staff can put the black label paper body into the inner cavity of the printer body and then release their hands. Under the action of the rebound force of the second spring, the second spring will push the cylindrical block to move in the direction close to the black label paper body until the cylindrical block enters the paper reel inside the black label paper body, thereby fixing the black label paper body.

[0018] In the above technical solution, further, the cylindrical block is slidably connected to the printer body, and the movable plate is slidably connected to the guide rod.

[0019] In this technical solution, it is ensured that the cylindrical block can slide in the printer body and that the movable plate can slide on the guide rod.

[0020] In the above technical solution, further, a rubber sleeve is fixedly installed on the rotating roller.

[0021] In this technical solution, under the action of the rubber sleeve, the material of the rubber sleeve is relatively soft, which can increase the friction between the rotating roller and the black label paper body, so that the rotating roller can drive one end of the black label paper body to move toward the outside when rotating.

[0022] In the above technical solution, further, both the cutting knife 1 and the cutting knife 2 are provided with saw teeth, and the saw teeth on the cutting knife 1 and the saw teeth on the cutting knife 2 are staggered with each other.

[0023] In this technical solution, it is ensured that the black label paper body can be cut when the second cutting knife overlaps with the first cutting knife, and the cutting effect is better, and there will be no situation where some areas are not cut.

[0024] The beneficial effects of the present invention are: 1. The printer that uses light source reflection to detect black mark paper can solve the problem of flip cover cable installation through the cooperation between the set optical coupling PCB, guide plate, rectangular rod, transmitting lamp beads, receiving lamp beads, rotating roller and light-emitting column, thereby reducing material cost and labor cost.

[0025] 2. The printer that uses light source reflection to check black mark paper, through the cooperation between the set cutter 1, cutter 2 and the driving component, both the cutter 1 and the cutter 2 are provided with saw teeth, when the cutter 2 overlaps with the cutter 1, the black mark paper body can be cut, and the cutting effect is better, and there will be no situation where some areas are cut off. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is one of the schematic diagrams of the structure inside the printer body of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the regional structure of the support plate in the present invention; Figure 5 This is the second schematic diagram of the structure inside the printer body of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 7 This is the third schematic diagram of the structure inside the printer body of the present invention; Figure 8 For the present invention Figure 7 The enlarged structural diagram at C in the middle; Fig. 9 This is one of the schematic diagrams of the internal structure of the flip cover in the present invention; Fig.10 For the present invention Fig. 9 The enlarged structural diagram at D in the middle; Fig.11 It is a schematic diagram of the cross-sectional structure of the flip cover in the present invention; Fig.12 This is the second schematic diagram of the internal structure of the flip cover in the present invention; Fig.13 For the present invention Fig.12 The enlarged structural diagram at E in the middle; Fig.14 This is the fourth schematic diagram of the structure inside the printer body of the present invention.

[0027] The symbols in the figure are: 1. Printer body; 2. Flip cover; 3. Slide plate; 4. Protective shell; 5. Cutter 1; 6. Connecting plate; 7. Black label paper body; 8. Rotating roller; 9. Rubber sleeve; 10. Thermal film; 11. Support plate; 12. Optocoupler PCB; 13. Transmitting lamp beads; 14. Mounting plate; 15. Cutter 2; 16. Guide plate; 17. Rectangular rod; 18. Light-emitting column; 19. Motor; 20. Gear; 21. Through groove; 22. Cavity; 23. Limit block; 24. Electric push rod; 25. Power cavity; 26. Spring 1; 27. Limit groove; 28. Spring 2; 29. ​​Cylindrical block; 30. Moving plate; 31. Guide rod; 32. Receive lamp beads. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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. Embodiment 1:

[0033] See also Figure 1 - Fig.14 As shown, this embodiment provides a printer for detecting black mark paper by using light source reflection, including: A printer body 1, a flip cover 2 is rotatably mounted on the printer body 1, a connecting plate 6 is fixedly mounted on the printer body 1 and located on one side of the flip cover 2, a cutting knife 2 15 is fixedly mounted on the connecting plate 6, and a cutting knife 1 5 is slidably mounted on the flip cover 2; A driving assembly, which is located in the flip cover 2 and is used to drive the cutting blade 5 to move; A fixing component, which is located inside the flip cover 2 and is used to fix the flip cover 2; A support plate 11 is fixedly mounted on the bottom of the inner cavity of the printer body 1, a guide plate 16 is fixedly mounted on the top of the support plate 11, a rotating roller 8 is rotatably mounted in the printer body 1 and above the guide plate 16, a thermal sheet 10 is fixedly mounted in the printer body 1 and on one side of the rotating roller 8, an optical coupler PCB 12 is fixedly mounted on one side of the support plate 11, a transmitting lamp bead 13 and a receiving lamp bead 32 are fixedly mounted in the support plate 11, a rectangular rod 17 is fixedly mounted in the printer body 1 and on the other side of the support plate 11, a mounting plate 14 is fixedly mounted on the rectangular rod 17, a light-emitting column 18 is fixedly mounted on the mounting plate 14, and a black mark paper body 7 is provided in the printer body 1. A power assembly is located in the printer body 1 and is used to drive the rotating roller 8 to rotate.

[0034] When in use, the black label paper body 7 is placed in the inner cavity of the printer body 1. Then, the staff passes one end of the black label paper body 7 between the light-emitting column 18 and the support plate 11, and passes one end of the black label paper body 7 between the rotating roller 8 and the guide plate 16, and then passes one end of the black label paper body 7 between the rotating roller 8 and the thermal film 10, so that one end of the black label paper body 7 is stretched to the outside. Then, the staff can rotate and close the flip cover 2, and fix the position of the flip cover 2 by the fixed component provided. At this time, one end of the black label paper body 7 will be located between the cutting knife 1 5 and the cutting knife 2 15; When printing, the power assembly is set to drive the rotating roller 8 to rotate. When the rotating roller 8 rotates, it can drive one end of the black mark paper body 7 to move toward the outside. At this time, the black mark paper body 7 in the printer body 1 will rotate on the two cylindrical blocks 29. During this process, the thermal film 10 is always in contact with the black mark paper body 7, so that printing can be performed, and the light emitted by the optical coupling PCB 12 will be received by the receiving lamp bead 32. Then, the light source after reception will be emitted by the emitting lamp bead 13 to the light-emitting column 18, and the black mark on the black mark paper body 7 is detected by the light source, and then fed back to the sensor, so that the problem of installing the cable of the flip cover 2 can be solved, and the material cost and labor cost can be reduced; After printing is completed, the driving assembly is set to drive the cutting blade 1 5 to move towards the direction close to the cutting blade 2 15. When the cutting blade 1 5 overlaps with the cutting blade 2 15, one end of the black mark paper body 7 can be cut. Embodiment 2:

[0035] This embodiment provides a printer for detecting black mark paper by light source reflection. In addition to the technical solutions of the above embodiments, it also has the following technical features. The driving component includes: Two power chambers 25 are both opened in the flip cover 2, and an electric push rod 24 is fixedly installed in the power chamber 25. The output end of the electric push rod 24 passes through one side of the power chamber 25 and is tightly welded to the cutting knife 5. The output shaft of the electric push rod 24 is slidably connected to the power chamber 25.

[0036] After printing is completed, the two electric push rods 24 can be started, and the output shafts of the electric push rods 24 will drive the cutting knife 1 5 to move towards the direction close to the cutting knife 2 15. When the cutting knife 1 5 overlaps with the cutting knife 2 15, one end of the black mark paper body 7 can be cut. Embodiment 3:

[0037] This embodiment provides a printer for detecting black mark paper by light source reflection. In addition to the technical solutions of the above embodiments, it also has the following technical features. The fixing component includes: The limiting groove 27 is provided in the flip cover 2, and a limiting block 23 is slidably installed in the limiting groove 27. One end of the limiting block 23 passes through one side of the limiting groove 27 and extends into the printer body 1. The other end of the limiting block 23 is fixedly installed with a spring 26 fixed to the inner wall of the limiting groove 27. The upper end of the limiting block 23 passes through the top of the limiting groove 27 and extends to the outside.

[0038] When the staff rotates and closes the flip cover 2, the spring 26 will move against the limit block 23 under the rebound force of the spring 26, so that one end of the limit block 23 is inserted into the printer body 1, thereby fixing the position of the flip cover 2. Embodiment 4:

[0039] This embodiment provides a printer that uses light source reflection to detect black mark paper. In addition to the technical solutions of the above embodiments, it also has the following technical features: one end of the limit block 23 is plugged into the printer body 1.

[0040] Here, it is ensured that one end of the limiting block 23 can be inserted into the printer body 1 . Embodiment 5:

[0041] This embodiment provides a printer for detecting black mark paper by light source reflection. In addition to the technical solutions of the above embodiments, it also has the following technical features. The power assembly includes: A protective shell 4 is fixedly installed on one side of the printer body 1. A limit block 23 is provided in the printer body 1. Two gears 20 are rotatably installed in the limit block 23. A motor 19 is fixedly installed on one side of the printer body 1 and located in the protective shell 4. The output end of the motor 19 passes through one side of the printer body 1 and extends into the cavity 22 and is coaxially connected to one of the gears 20. One end of the other gear 20 passes through one side of the cavity 22 and extends into the inner cavity of the printer body 1 and is coaxially connected to the rotating roller 8.

[0042] When the motor 19 is started, the output shaft of the motor 19 will drive one of the gears 20 to rotate. Under the action of meshing, one of the gears 20 will drive the other gear 20 to rotate, and then the other gear 20 will drive the rotating roller 8 to rotate. Embodiment 6:

[0043] The present embodiment provides a printer that uses light source reflection to detect black mark paper. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the output shaft of the motor 19 is rotatably connected to the printer body 1 and the cavity 22, one end of another gear 20 is rotatably connected to the printer body 1, and the two gears 20 are meshed.

[0044] Among them, it is ensured that the motor 19 can operate normally, and that one end of the gear 20 can rotate within the printer body 1. Under the action of meshing, it is ensured that the rotation of one gear 20 can drive the rotation of the other gear 20. Embodiment 7:

[0045] The present embodiment provides a printer for detecting black mark paper by light source reflection. In addition to the technical solutions of the above embodiments, the present invention also has the following technical features: two through slots 21 are provided in the printer body 1, and cylindrical blocks 29 are slidably installed in the through slots 21. The ends of the two cylindrical blocks 29 that are close to each other respectively penetrate the opposite sides of the two through slots 21 and extend into the inner cavity of the printer body 1. The ends of the two cylindrical blocks 29 that are far away from each other are fixedly installed with springs 28 that are fixed to the inner walls of the corresponding through slots 21. A movable plate 30 is fixedly installed on the top of the cylindrical blocks 29, and a slide plate 3 is fixedly installed on the top of the movable plate 30 and located on the top of the printer body 1. Two guide rods 31 are fixedly installed in the through slots 21 and above the cylindrical blocks 29, and one end of the guide rods 31 penetrates the movable plate 30. The black mark paper body 7 is located on the two cylindrical blocks 29, and the black mark paper body 7 is rotatably connected to the cylindrical blocks 29.

[0046] When in use, the staff first moves the two slide plates 3 so that the two slide plates 3 respectively drive the two movable plates 30 away from each other. Subsequently, the two movable plates 30 will respectively drive the two cylindrical blocks 29 away from each other. Under the action of the guide rod 31, the displacement of the movable plate 30 can be made more stable. At this time, the spring 28 will be squeezed and will shrink until the cylindrical block 29 completely enters the through groove 21. Then, the staff can put the black label paper body 7 into the inner cavity of the printer body 1, and then release their hands. Under the action of the rebound force of the spring 28, the spring 28 will push the cylindrical block 29 to move in the direction close to the black label paper body 7 until the cylindrical block 29 enters the paper reel in the black label paper body 7, thereby fixing the black label paper body 7. Embodiment 8:

[0047] This embodiment provides a printer that uses light source reflection to detect black mark paper. In addition to the technical solutions of the above embodiments, it also has the following technical features: the cylindrical block 29 is slidably connected to the printer body 1, and the movable plate 30 is slidably connected to the guide rod 31.

[0048] Here, it is ensured that the cylindrical block 29 can slide in the printer body 1 and that the movable plate 30 can slide on the guide rod 31 . Embodiment 9:

[0049] This embodiment provides a printer that uses light source reflection to detect black mark paper. In addition to the technical solutions of the above embodiments, it also has the following technical features: a rubber sleeve 9 is fixedly installed on the rotating roller 8.

[0050] Among them, under the action of the rubber sleeve 9, the material of the rubber sleeve 9 is relatively soft, which can increase the friction between the rotating roller 8 and the black mark paper body 7, so that the rotating roller 8 can drive one end of the black mark paper body 7 to move toward the outside when rotating. Embodiment 10:

[0051] The present embodiment provides a printer for detecting black mark paper by light source reflection. In addition to the technical solutions of the above-mentioned embodiments, the present invention also has the following technical features: both the cutting blade 1 5 and the cutting blade 2 15 are provided with saw teeth, and the saw teeth on the cutting blade 1 5 and the saw teeth on the cutting blade 2 15 are staggered with each other.

[0052] Among them, it is ensured that when the cutting blade 2 15 and the cutting blade 1 5 overlap, the black mark paper body 7 can be cut, and the cutting effect is better, and there will be no situation where some areas are not cut.

[0053] Working principle: When in use, the staff first moves the two slide plates 3 so that the two slide plates 3 respectively drive the two moving plates 30 away from each other. Then, the two moving plates 30 will respectively drive the two cylindrical blocks 29 away from each other. Under the action of the guide rod 31, the displacement of the moving plates 30 can be more stable. At this time, the second spring 28 will be squeezed and will shrink until the cylindrical block 29 completely enters the through groove 21. Then, the staff can put the black mark paper body 7 into the inner cavity of the printer body 1, and then release their hands. Under the action of the rebound force of the second spring 28, the second spring 28 will push the cylindrical block 29 to move in the direction close to the black mark paper body 7 until the cylindrical block 29 enters the paper roll in the black mark paper body 7, so that the black mark paper body 7 can be fixed. Then, the staff passes one end of the black label paper body 7 between the light-emitting column 18 and the support plate 11, passes one end of the black label paper body 7 between the rotating roller 8 and the guide plate 16, and then passes one end of the black label paper body 7 between the rotating roller 8 and the thermal film 10, so that one end of the black label paper body 7 is stretched to the outside. Then, the staff can rotate and close the flip cover 2. Under the action of the rebound force of the spring 1 26, the spring 1 26 will move against the limit block 23, so that one end of the limit block 23 is inserted into the printer body 1, so that the position of the flip cover 2 can be fixed. At this time, one end of the black label paper body 7 will be located between the cutting knife 1 5 and the cutting knife 2 15; When printing, the staff starts the motor 19, and the output shaft of the motor 19 will drive one of the gears 20 to rotate. Under the action of meshing, one of the gears 20 will drive the other gear 20 to rotate, and then the other gear 20 will drive the rotating roller 8 to rotate. Under the action of the rubber sleeve 9, the material of the rubber sleeve 9 is relatively soft, which can increase the friction between the rotating roller 8 and the black mark paper body 7, so that the rotating roller 8 can drive one end of the black mark paper body 7 to move toward the outside when rotating. At this time, the black mark paper body 7 in the printer body 1 will rotate on the two cylindrical blocks 29. During this process, the thermal film 10 is always in contact with the black mark paper body 7, so that printing can be performed, and the light emitted by the optical coupler PCB 12 will be received by the receiving lamp bead 32. Then, the light source after reception will be emitted by the emitting lamp bead 13 to the light-emitting column 18, and the black mark on the black mark paper body 7 is detected by the light source, and then fed back to the sensor. In this way, the problem of installing the cable of the flip cover 2 can be solved, and the material cost and labor cost can be reduced; After printing is completed, the two electric push rods 24 can be started, and the output shafts of the electric push rods 24 will drive the cutting knife 1 5 to move towards the direction close to the cutting knife 2 15. When the cutting knife 1 5 overlaps with the cutting knife 2 15, one end of the black mark paper body 7 can be cut.

[0054] 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 printer that uses light source reflection to detect black mark paper, characterized in that: include: A printer body (1), a flip cover (2) being rotatably mounted on the printer body (1), a connecting plate (6) being fixedly mounted on the printer body (1) and located on one side of the flip cover (2), a second cutting knife (15) being fixedly mounted on the connecting plate (6), and a first cutting knife (5) being slidably mounted on the flip cover (2); A drive assembly, the drive assembly being located in the flip cover (2) and being used to drive the cutting blade 1 (5) to move; A fixing component, the fixing component is located inside the flip cover (2) and is used to fix the flip cover (2); A support plate (11), the support plate (11) being fixedly mounted on the bottom of the inner cavity of the printer body (1), a guide plate (16) being fixedly mounted on the top of the support plate (11), a rotating roller (8) being rotatably mounted in the printer body (1) and located above the guide plate (16), a thermal sheet (10) being fixedly mounted in the printer body (1) and located on one side of the rotating roller (8), an optical coupling PCB (12) being fixedly mounted on one side of the support plate (11), a transmitting lamp bead (13) and a receiving lamp bead (32) being fixedly mounted in the support plate (11), a rectangular rod (17) being fixedly mounted in the printer body (1) and located on the other side of the support plate (11), a mounting plate (14) being fixedly mounted on the rectangular rod (17), a light-emitting column (18) being fixedly mounted on the mounting plate (14), and a black mark paper body (7) being arranged in the printer body (1); A power assembly is located in the printer body (1) and is used to drive the rotating roller (8) to rotate.

2. A printer for detecting black mark paper by light source reflection according to claim 1, characterized in that: The drive assembly comprises: Two power chambers (25), both of which are provided in the flip cover (2), an electric push rod (24) is fixedly installed in the power chamber (25), an output end of the electric push rod (24) passes through one side of the power chamber (25) and is tightly welded to the cutting knife (5), and an output shaft of the electric push rod (24) is slidably connected to the power chamber (25).

3. A printer for detecting black mark paper using light source reflection according to claim 1, characterized in that: The fixing assembly comprises: A limit groove (27), wherein the limit groove (27) is formed in the flip cover (2), a limit block (23) is slidably mounted in the limit groove (27), one end of the limit block (23) passes through one side of the limit groove (27) and extends into the printer body (1), a spring (26) fixed to the inner wall of the limit groove (27) is fixedly mounted on the other end of the limit block (23), and the upper end of the limit block (23) passes through the top of the limit groove (27) and extends to the outside.

4. A printer for detecting black mark paper using light source reflection according to claim 3, characterized in that: One end of the limit block (23) is plugged into and matched with the printer body (1).

5. A printer for detecting black mark paper using light source reflection according to claim 1, characterized in that: The power assembly comprises: A protective shell (4), the protective shell (4) being fixedly mounted on one side of a printer body (1), a limit block (23) being provided in the printer body (1), two gears (20) being rotatably mounted in the limit block (23), a motor (19) being fixedly mounted on one side of the printer body (1) and located in the protective shell (4), an output end of the motor (19) passing through one side of the printer body (1) extending into a cavity (22) and being coaxially connected to one of the gears (20), and one end of the other gear (20) passing through one side of the cavity (22) extending into an inner cavity of the printer body (1) and being coaxially connected to a rotating roller (8).

6. A printer for detecting black mark paper using light source reflection according to claim 5, characterized in that: The output shaft of the motor (19) is rotatably connected to the printer body (1) and the cavity (22), one end of the other gear (20) is rotatably connected to the printer body (1), and the two gears (20) are meshed.

7. A printer for detecting black mark paper using light source reflection according to claim 1, characterized in that: The printer body (1) is provided with two through slots (21), and cylindrical blocks (29) are slidably mounted in the through slots (21). The ends of the two cylindrical blocks (29) that are close to each other respectively penetrate the opposite sides of the two through slots (21) and extend into the inner cavity of the printer body (1). The ends of the two cylindrical blocks (29) that are far away from each other are fixedly mounted with springs (28) that are fixed to the inner walls of the corresponding through slots (21). A movable plate (30) is fixedly mounted on the top of the cylindrical blocks (29), and a slide plate (3) is fixedly mounted on the top of the movable plate (30) and located on the top of the printer body (1). Two guide rods (31) are fixedly mounted in the through slots (21) and located above the cylindrical blocks (29), and one end of the guide rods (31) penetrates the movable plate (30). The black mark paper body (7) is located on the two cylindrical blocks (29), and the black mark paper body (7) is rotatably connected to the cylindrical blocks (29).

8. A printer for detecting black mark paper using light source reflection according to claim 7, characterized in that: The cylindrical block (29) is slidably connected to the printer body (1), and the movable plate (30) is slidably connected to the guide rod (31).

9. A printer for detecting black mark paper using light source reflection according to claim 1, characterized in that: A rubber sleeve (9) is fixedly mounted on the rotating roller (8).

10. A printer for detecting black mark paper using light source reflection according to claim 1, characterized in that: The cutting knife 1 (5) and the cutting knife 2 (15) are both provided with saw teeth, and the saw teeth on the cutting knife 1 (5) and the saw teeth on the cutting knife 2 (15) are staggered with each other.

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