An LED sterilization device for a banknote sorting machine and the banknote sorting machine

Abstract

The present invention discloses an LED sterilization device for a banknote sorting machine and the banknote sorting machine. The LED sterilization device includes two LED sterilization devices, which are respectively installed on both sides of the banknote passage of the machine body and are used to irradiate both end faces of the passing banknotes with ultraviolet light. The LED sterilization device includes a lamp housing, the lamp housing is provided with a lamp groove, an LED lamp board is installed in the lamp groove, one side of the lamp housing facing the banknote passage is open and the open end is closed by a lens; LED lamp beads are installed on the LED lamp board, and the LED lamp beads emit ultraviolet light after being energized, and the ultraviolet light irradiates the banknotes through the lens; a plurality of irradiation probes are installed in the lamp groove, and the irradiation probes are used to detect the irradiance of the ultraviolet light emitted by the opposite LED lamp board. The present invention solves the problem of synchronous disinfection during the banknote sorting process. By using UVC deep ultraviolet LEDs to emit ultraviolet light, the UVC violet LEDs have the advantages of long life and fast switching, etc., which can effectively solve the sterilization problem during the banknote sorting process.

Description

Technical Field

[0001] The present invention relates to the field of financial equipment, and particularly to an LED sterilization device for a banknote sorting machine and the banknote sorting machine. Background Art

[0002] Banknotes have the risk of indirectly spreading viruses. Currently, the banknote sorting machines used in the market do not have the function of disinfecting banknotes, which is likely to cause cross-infection. In view of this, the present invention provides an LED sterilization device for a banknote sorting machine and the banknote sorting machine. The LED sterilization device sterilizes banknotes by irradiating them with ultraviolet light, thus avoiding cross-infection. Summary of the Invention

[0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an LED sterilization device for a banknote sorting machine and the banknote sorting machine.

[0004] To achieve the above object, the present invention provides an LED sterilization device for a banknote sorting machine, including two LED sterilization devices which are respectively installed on both sides of the banknote channel of the machine body and are used for irradiating both end faces of the passing banknotes with ultraviolet light; the LED sterilization device includes a lamp housing which is provided with a lamp slot, an LED lamp board is installed in the lamp slot, one side of the lamp housing facing the banknote channel is open and the open end is closed by a lens; LED lamp beads are installed on the LED lamp board, and after the LED lamp beads are powered on, they emit ultraviolet light, and the ultraviolet light irradiates the banknotes through the lens; a plurality of irradiation probes are installed in the lamp slot, and the irradiation probes are used for detecting the irradiance of the ultraviolet light emitted by the opposite LED lamp board.

[0005] Preferably, it further includes a rolling brush mechanism. The rolling brush mechanism includes a cleaning frame, on which two shaft plates and a guide rail are installed. The two shaft plates are assembled with the screw rod in a circumferentially rotatable and non-axially movable manner. A driving block is sleeved on the screw rod, and the driving block is assembled with the screw rod in a screwed manner through threads. The driving block is installed on a rolling brush frame, and a slider is arranged on the rolling brush frame. The slider is engaged with and slidably assembled with a guide rail groove which is arranged on the guide rail. A rolling brush is installed on the rolling brush frame, and the rolling brush can enter between the two lenses to brush the lenses.

[0006] Preferably, it further includes a width-adjusting bottom plate which is installed in the machine body. A push rod motor is installed on the width-adjusting bottom plate, and the push rod motor shaft of the push rod motor is assembled with a width-adjusting vertical plate. The width-adjusting vertical plate is axially slidably sleeved on a width-adjusting optical axis. One end of the width-adjusting optical axis is sleeved with a spring and then assembled with the lamp housing of another LED sterilization device. The two ends of the spring are respectively fixedly assembled with the lamp housing and the width-adjusting vertical plate. A nut is sleeved on the other end of the width-adjusting optical axis, and the nut is used for limiting the maximum interval between the lamp housing and the width-adjusting vertical plate.

[0007] Preferably, the screw rod is connected to the motor shaft through a first belt to form a belt drive mechanism, and the motor shaft is installed in the motor.

[0008] Preferably, the brush roller frame is circumferentially rotatably assembled with the first rotating shaft and the shaft tube. The first rotating shaft is connected to the shaft tube through a second belt to form a belt drive mechanism. One end of the shaft tube is installed in the brush roller cavity of the brush roller and is fixedly assembled with the brush roller. There are countless bristles on the outer wall of the brush roller; a rotating gear is also installed on the first rotating shaft, and the rotating gear meshes with the first rack for transmission. The first rack is installed on the guide rail.

[0009] Preferably, through negative pressure grooves are provided on the side wall of the brush roller; one end of the first rotating shaft is also installed in the negative pressure housing and is assembled with the first negative pressure gear. The negative pressure housing is installed on the brush roller frame. The first negative pressure gear meshes with the second negative pressure gear for transmission. The second negative pressure gear is sleeved on the second rotating shaft. One end of the second rotating shaft passes through the negative pressure partition plate and is assembled with the impeller. The impeller is installed in the suction cavity. The suction cavity is respectively communicated with one end of the exhaust port and one end of the pipeline. The other end of the exhaust port penetrates through the negative pressure housing; the negative pressure partition plate is installed in the negative pressure housing, and the exhaust port and the suction cavity are arranged in the negative pressure housing; the other end of the pipeline is communicated with the inside of the sealing cover. The sealing cover is installed on the brush roller frame and is communicated with the shaft hole inside the shaft tube.

[0010] Preferably, a filter screen is installed in the shaft hole. There are several through filter holes on the filter screen, and the filter holes are used to prevent large particle impurities from passing through.

[0011] Preferably, the first negative pressure gear is a one-way gear, and its locking direction is the rotation direction of the first rotating shaft when the brush roller frame is away from the motor, and vice versa is the rotation direction.

[0012] Preferably, the bottom of the brush roller cavity is open, and the open end is closed by an end cover. One end of the end cover is hinged to the brush roller through a pin shaft, and the end cover and the pin shaft are not circumferentially rotatably assembled; the bottom of the pin shaft passes through the end cover and is assembled with the switch gear, and the switch gear can mesh with the second rack;

[0013] The second rack is installed on the drawer frame near the motor end. The drawer frame is installed in the machine body. A drawer is slidably installed in the drawer frame. The top of the drawer is open and is located below the brush roller cavity. When the end cover is opened, the sundries in the brush roller cavity will fall into the drawer under the action of gravity for storage.

[0014] The present invention also discloses a banknote sorting machine, which applies the above-mentioned LED sterilization device.

[0015] The beneficial effects of the present invention are:

[0016] The present invention solves the problem of synchronous disinfection function during the banknote sorting process. It uses UVC deep ultraviolet LEDs to emit ultraviolet light. UVC violet LEDs have the advantages of long life and fast switching, which can effectively solve the sterilization problem during the banknote sorting process. In addition, the present invention uses a roller brush to clean the lens, thereby ensuring the light transmittance of the lens and also ensuring the sterilization effect of the ultraviolet light. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figures 1 - 2 is a schematic structural diagram of the present invention, where Figure 2 is a cross-sectional view of the banknote channel 111 in the width direction.

[0018] Figure 3 is a schematic structural diagram of the LED sterilization device.

[0019] Figures 4 - 7 is a schematic structural diagram of the roller brush mechanism, where Figure 6 is a cross-sectional view at the central plane where the axis of the roller brush 720 is located.

[0020] Figures 8 - 9 is a partial structural diagram at the roller brush 720. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] Refer to Figures 1 - 3 , the banknote sorter of this embodiment includes a body 110. A banknote channel 111 is provided inside the body 110, and at least two receiving plates 130 are installed on the body 110. Two LED sterilization devices 200 are installed on the banknote channel 111, and the two LED sterilization devices are respectively installed on both sides of the banknote channel 111. When in use, banknotes are conveyed through the banknote channel 111, and then pass through banknote verification, identification, between the two LED sterilization devices 200 in sequence, and finally are respectively conveyed to the corresponding receiving plates according to the identified denominations, currencies, etc. to complete sorting. When the banknote 01 passes between the two LED sterilization devices 200, the LED sterilization devices 200 both emit ultraviolet light to irradiate both end faces of the banknote to sterilize the banknote.

[0024] The LED sterilization device 200 includes a lamp housing 210, which is provided with a lamp groove 211, in which an LED lamp board 220 is installed. The lamp housing 210 is open on one side facing the banknote channel 111 and the open end is closed by a lens 230, and the lens 230 is in a transparent state; LED lamp beads are installed on the LED lamp board 220, and the LED lamp beads emit ultraviolet light when powered on, and the ultraviolet light shines on the banknotes through the lens.

[0025] Since banknotes carry more or less dust, solid impurities, fibers, hair, etc., they are likely to shake off the impurities adsorbed when passing through the lens, so that the impurities are adsorbed on the lenses of the upper and lower LED sterilization devices. The main method at present is to open the body regularly for cleaning, but this method requires complex disassembly, which is time-consuming and laborious. It is also difficult to clean in time because it is impossible to detect the crops attached to the lenses. In this regard, the applicant has also made the following improvements:

[0026] A plurality of irradiation probes are installed in the lamp trough 211, and the irradiation probes are used to detect the irradiance of the ultraviolet light emitted by the opposite LED light board. When in use, first ensure that there is no obstruction between the two LED sterilization devices, then start the LED light board on one side and the irradiation probe on the other side, detect the irradiance at this time, and then compare it with the irradiance when the lens is cleaned. Once it is found that the irradiance decreases by more than the preset threshold, it is judged that cleaning is required, and then the management personnel can be prompted to clean or the roller brush mechanism can be used for automatic cleaning.

[0027] See also Figures 4 - 9 The roller brush mechanism includes a width-adjusting base plate 140, which is installed in the body. A push rod motor 310 is installed on the width-adjusting base plate 140. The push rod motor shaft 311 of the push rod motor 310 is assembled with the width-adjusting vertical plate 150. The width-adjusting vertical plate 150 can be axially slidably mounted on the width-adjusting optical axis 410. A spring 510 is mounted on one end of the width-adjusting optical axis 410 and then assembled with a lamp housing 210 of an LED sterilization device 200. The two ends of the spring 510 are respectively assembled and fixed with the lamp housing 210 and the width-adjusting vertical plate 150. A nut 411 is mounted on the other end of the width-adjusting optical axis 410. The nut 411 is used to limit the maximum distance between the lamp housing 210 and the width-adjusting vertical plate 150. When in use, the spring 510 is used to realize the active adjustment of the distance between the lamp housing 210 and the width-adjusting vertical plate 150, so that the LED sterilization device 200 has a certain flexibility to adapt to the subsequent brushing of the roller brush 720.

[0028] Another LED sterilization device 200 is installed on the cleaning rack 160, and two shaft plates 161 and guide rails 430 are installed on the cleaning rack 160. The two shaft plates 161 and the screw 420 can rotate in a circular manner but cannot move axially. A driving block 171 is mounted on the screw 420, and the driving block 171 is screwed together with the screw 420 through a thread. The driving block 171 is installed on the roller brush rack 170, and a slider 172 is provided on the roller brush rack 170. The slider is engaged with the guide groove 431 and can be slidably assembled. The guide groove 431 is provided on the guide rail 430.

[0029] The screw 420 is connected to the motor shaft 321 through the first belt 710 to form a belt transmission mechanism. The motor shaft 321 is installed in the motor 320. After the motor 320 is started, it can drive the motor shaft to rotate, thereby driving the screw 420 to rotate so that the roller brush frame 170 moves along the axial direction of the screw.

[0030] The roller brush frame 170 is assembled with the first rotating shaft 450 and the shaft tube 470 so as to be rotatable in a circle. The first rotating shaft 450 is connected to the shaft tube 470 through the second belt 740 and forms a belt transmission mechanism. One end of the shaft tube 470 is installed in the roller brush cavity 723 of the roller brush 720 and is assembled and fixed with the roller brush 720. The outer wall of the roller brush 720 is provided with numerous bristles 721, and the side wall is provided with a penetrating negative pressure groove 722. When in use, the push rod motor 310 is started to drive the corresponding LED sterilization device 200 away from the other LED sterilization device, so that the sterilization gap 201 is widened to facilitate the roller brush to pass through. The motor is started, and the motor drives the screw to rotate, thereby driving the roller brush frame to move toward the sterilization gap 201. The roller brush 720 brushes the lenses on both sides with the bristles, so as to brush off the attachments on the lenses to achieve the purpose of cleaning. When the roller brush frame moves to the end farthest from the motor, the motor reverses and drives the roller brush frame to reset, and so on and so forth until the lenses meet the cleaning requirements. During cleaning, since one of the LED sterilization devices has a certain degree of mobility, the clamping force of the lens and the roller brush can be increased, thereby increasing the cleaning effect.

[0031] Preferably, a rotating tooth 620 is also installed on the first rotating shaft 450, and the rotating tooth 620 is meshed with the first rack 611 for transmission. The first rack 611 is installed on the guide rail 430, so that the roller brush frame can drive the first rotating shaft to rotate when moving along the screw, thereby driving the roller brush to rotate to increase the brushing effect.

[0032] One end of the first rotating shaft 450 is also inserted into the negative pressure housing 180 and assembled with the first negative pressure gear 631. The negative pressure housing 180 is installed on the roller brush holder 170. The first negative pressure gear 631 is in meshing transmission with the second negative pressure gear 632. The second negative pressure gear 632 is sleeved on the second rotating shaft 460. One end of the second rotating shaft 460 passes through the negative pressure partition plate 183 and is assembled with the impeller 650. The impeller 650 is installed in the suction chamber 182. The suction chamber 182 is respectively communicated with one end of the exhaust port 181 and one end of the pipeline 530. The other end of the exhaust port 181 penetrates through the negative pressure housing 180. The negative pressure partition plate 183 is installed in the negative pressure housing 180. The exhaust port 181 and the suction chamber 182 are arranged in the negative pressure housing. When the impeller rotates, it can generate a suction negative pressure on the pipeline 530, and the air flow is discharged from the exhaust port 181.

[0033] The other end of the pipeline 530 is internally communicated with the inside of the sealing cover 540. The sealing cover 540 is installed on the roller brush holder 170 and is communicated with the shaft hole 471 inside the shaft tube 470. A filter screen 560 is installed in the shaft hole 471. Several through filter holes 561 are arranged on the filter screen 560. The filter holes 561 are used to prevent large particle impurities from passing through.

[0034] During use, the first rotating shaft drives the impeller to rotate. The impeller generates a negative pressure on the pipeline, so that while the roller brush rotates, air flow is sucked in through the negative pressure groove 722, and thus the dust and the like brushed off are sucked into the roller brush cavity 723 for storage, avoiding secondary pollution and improving the cleaning effect at the same time.

[0035] More preferably, the first negative pressure gear 631 is a one-way gear, and its locking direction is the rotation direction of the first rotating shaft 450 when the roller brush holder is away from the motor, and vice versa is the rotation direction. This design is mainly to avoid the reverse rotation of the impeller, so as to blow air into the roller brush cavity 723, causing the sundries in the roller brush cavity 723 to be blown out and causing secondary pollution.

[0036] Preferably, in order to facilitate the discharge of the sundries in the roller brush cavity 723, the following improvement is also made in this embodiment: The bottom of the roller brush cavity 723 is open, and the open end is closed by an end cover 730. One end of the end cover 730 is hinged to the roller brush 720 through a pin shaft 440. The end cover 730 and the pin shaft 440 are not assembled in a circumferentially rotatable manner; after the bottom of the pin shaft 440 passes through the end cover 730, it is assembled with the switch gear 640. The switch gear 640 can be meshed with the second rack 612, so as to realize the opening and closing of the end cover 730 and realize the opening and closing of the bottom of the roller brush cavity 723.

[0037] The second rack 612 is installed on the drawer rack 190 near one end of the motor. The drawer rack 190 is installed inside the machine body. A drawer 520 is slidably installed in the drawer rack 190. The top of the drawer 520 is open and is located below the brush roller chamber 723. When the end cover 730 is opened, the sundries in the brush roller chamber will fall into the drawer for storage under the action of gravity. The operator only needs to pull out the drawer for cleaning.

[0038] Preferably, in order to make the end cover 730 more stable when closed and prevent the sundries in the brush roller chamber from being thrown out due to the loosening of the end cover, in this embodiment, a second magnet 552 is further installed at one end of the brush roller 720 away from the pin shaft 440, and a first magnet 551 is installed at the corresponding position of the end cover 730. Both the first magnet 551 and the second magnet 552 are magnetic and opposite in polarity. When the end cover closes the bottom of the brush roller chamber 723, the adsorption of the first magnet 551 and the second magnet 552 can prevent the end cover from being opened unnecessarily under the action of centrifugal force, causing the sundries in the brush roller chamber to be thrown out.

[0039] Those not detailed in the present invention are all well-known technologies in the art.

[0040] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning, or limited experiments based on the concept of the present invention on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. An LED sterilization device for a banknote sorting machine, comprising two LED sterilization devices, which are respectively installed on both sides of the banknote channel of the machine body and are used to irradiate both end faces of the passing banknotes with ultraviolet light; characterized in that, The LED sterilization device includes a lamp housing. The lamp housing is provided with a lamp slot, and an LED lamp board is installed in the lamp slot. One side of the lamp housing facing the banknote channel is open, and the open end is closed by a lens. LED lamp beads are installed on the LED lamp board. After the LED lamp beads are powered on, they emit ultraviolet light, and the ultraviolet light irradiates the banknotes through the lens. A plurality of irradiation probes are installed in the lamp slot, and the irradiation probes are used to detect the irradiance of the ultraviolet light emitted by the opposite LED lamp board. It further includes a rotary brush mechanism. The rotary brush mechanism includes a cleaning frame. Two shaft plates and a guide rail are installed on the cleaning frame. The two shaft plates are circumferentially rotatable and axially non-movable with respect to the screw rod. A driving block is sleeved on the screw rod, and the driving block is screwed and assembled with the screw rod through threads. The driving block is installed on the rotary brush frame. A slider is provided on the rotary brush frame, and the slider is engaged and slidably assembled with the guide rail groove. The guide rail groove is provided on the guide rail. A rotary brush is installed on the rotary brush frame, and the rotary brush enters between the two lenses to brush the lenses. It further includes a width-adjusting bottom plate. The width-adjusting bottom plate is installed in the machine body. A push rod motor is installed on the width-adjusting bottom plate. The push rod of the push rod motor is assembled with a width-adjusting vertical plate. The width-adjusting vertical plate is axially slidably sleeved on the width-adjusting optical axis. One end of the width-adjusting optical axis is sleeved with a spring and then assembled with the lamp housing of another LED sterilization device. The two ends of the spring are respectively fixedly assembled with the lamp housing and the width-adjusting vertical plate. A nut is sleeved on the other end of the width-adjusting optical axis, and the nut is used to limit the maximum interval between the lamp housing and the width-adjusting vertical plate. The rotary brush frame is circumferentially rotatably assembled with a first rotating shaft and a shaft tube. The first rotating shaft is connected to the shaft tube through a second belt to form a belt transmission mechanism. One end of the shaft tube is inserted into the rotary brush cavity of the rotary brush and fixedly assembled with the rotary brush. Innumerable bristles are provided on the outer wall of the rotary brush. A rotating gear is further installed on the first rotating shaft, and the rotating gear meshes and drives with a first rack. The first rack is installed on the guide rail. A through negative pressure groove is provided on the side wall of the rotary brush. One end of the first rotating shaft is also inserted into a negative pressure housing and assembled with a first negative pressure gear. The negative pressure housing is installed on the rotary brush frame. The first negative pressure gear meshes and drives with a second negative pressure gear. The second negative pressure gear is sleeved on a second rotating shaft. One end of the second rotating shaft passes through a negative pressure partition plate and is assembled with an impeller. The impeller is installed in a suction cavity. The suction cavity is respectively communicated with one end of an exhaust port and one end of a pipeline. The other end of the exhaust port penetrates through the negative pressure housing. The negative pressure partition plate is installed in the negative pressure housing. The exhaust port and the suction cavity are provided in the negative pressure housing. The other end of the pipeline is internally communicated with a sealing cover. The sealing cover is installed on the rotary brush frame and communicated with the shaft hole inside the shaft tube.

2. The LED sterilization device according to claim 1, wherein, The first negative pressure gear is a one-way gear, and its locking direction is the rotation direction of the first rotating shaft when the rotary brush frame is away from the motor, and vice versa is the rotation direction.

3. The LED sterilization device according to claim 1, wherein The bottom of the rotary brush cavity is open, and the open end is closed by an end cover. One end of the end cover is hinged to the rotary brush through a pin shaft, and the end cover is not circumferentially rotatable with respect to the pin shaft. The bottom of the pin shaft passes through the end cover and is assembled with a switch gear, and the switch gear meshes with a second rack. The second rack is installed on the drawer frame near the motor end. The drawer frame is installed in the machine body. A drawer is slidably installed in the drawer frame. The top of the drawer is open and located below the rotary brush cavity. When the end cover is opened, the sundries in the rotary brush cavity will fall into the drawer under the action of gravity for storage.

4. The LED sterilization device according to claim 1, characterized in that, The screw rod is connected to the motor shaft through a first belt to form a belt drive mechanism, and the motor shaft is installed in the motor.

5. The LED sterilization device according to claim 1, wherein A filter screen is installed in the shaft hole, and several through filter holes are provided on the filter screen, and the filter holes are used to prevent large particle impurities from passing through.

6. A banknote sorting machine, characterized in that, The LED sterilization device according to any one of claims 1-5 is applied.

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