Self-service cash register all-in-one machine

Abstract

The invention discloses a self-service cash register all-in-one machine, and relates to the technical field of cash register, and the machine comprises an objective table which is used for placing commodities and weighing the commodities; the scanning module is used for collecting image information of commodities on the objective table; the printing module comprises a rubber roller and a thermosensitive frame, the rubber roller is matched with a thermosensitive piece at the bottom of the thermosensitive frame, and the printing module is used for printing shopping bills; and when the adjusting assembly is adjusted to the first state, the position of the rubber roller can be limited, and the rubber roller is prevented from being separated from the thermosensitive frame. The adjusting assembly is adjusted to the first state, so that the arc-shaped end of the limiting clamping rod limits the core shaft to the groove bottom of the guide groove, the core shaft cannot slide along the guide groove, a customer cannot open the cover plate from the outside, damage to the internal structure of equipment is avoided, and normal use of the equipment is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cashiers, and particularly relates to a self-service cash register integrated machine. Background Art

[0002] The thermal printing device of the existing cash register generally includes a housing and an embedded movement assembly. The embedded movement assembly includes a separating member and a base. A paper feeding channel is formed between the separating member and the base. The thermal film is arranged on the separating member, the rubber roller is arranged on the base, the thermal film abuts against the rubber roller, and the thermal printing paper presents printed content after passing through the thermal film.

[0003] Chinese Patent with the publication number CN209999884U discloses an embedded thermal printer and a thermal printing device with anti-misopening, including a base and a cover body. The base is provided with a thermal film, the cover body covers the paper bin, a rubber roller is rotatably arranged on the cover body, the thermal film is opposite to the rubber roller, and the embedded thermal printer further includes a locking member, a levering member and a locking piece. The locking member is provided with a locking portion and a first driving portion, the locking member is rotatably arranged on the base, the locking portion is detachably connected to the rubber roller, the levering member is provided with a levering portion and a second driving portion, the levering member is rotatably arranged on the base, the second driving portion is adjacent to the first driving portion and drives the locking member to rotate, and the locking piece can move on the base and can be rotationally and limitatively matched with the levering portion. The rubber roller is detachably locked by the locking member. When opening, the rotation of the levering member drives the rotation of the locking member, and the locking piece is rotationally and limitatively matched with the levering portion, thereby realizing the prevention of misopening the cover and improving the operating stability of the movement.

[0004] Although the above patent can prevent misopening of the cover, for self-service cash register equipment, since it is in a state without professional supervision, some customers will still close the anti-misopening component and then open the cover body by themselves, thus randomly moving the internal structure of the equipment, which may lead to equipment failure. At the same time, the pressure between the above-mentioned thermal printing rubber roller and the thermal printing head is unstable, and the pressure between the thermal printing rubber roller and the thermal printing head cannot be adjusted, thus affecting the smooth progress of the bill printing process.

[0005] Therefore, it is very necessary to invent a self-service cash register integrated machine to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a self-service cash register integrated machine to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A self-service cash register integrated machine, comprising: a loading platform for placing goods and weighing them; a scanning module for collecting image information of the goods on the loading platform; a printing module, which includes a rubber roller and a thermal printer holder, and the rubber roller cooperates with the thermal sheet at the bottom of the thermal printer holder for printing shopping receipts; an adjusting component, when the adjusting component is adjusted to the first state, it can limit the position of the rubber roller to prevent the rubber roller from separating from the thermal printer holder, and when the adjusting component is adjusted to the second state, it can adjust the pressure between the rubber roller and the thermal printer holder, and moreover, the adjusting component can monitor the pressure between the rubber roller and the thermal printer holder in real time, and when the two are forced to separate, it can give an alarm; a display screen for displaying shopping information and providing a user interaction interface.

[0008] Preferably, the printing module further includes an inner core and a roller holder rotatably installed on the front side of the inner core. When the roller holder rotates into the inner core, the core shaft in the middle of the rubber roller is embedded into the guiding groove on the side surface of the inner core. At this time, the rubber roller is in contact with the thermal sheet, and the adjusting component limits the rubber roller through the core shaft.

[0009] Preferably, the adjusting component includes two limiting parts symmetrically and rotatably installed on the two outer side surfaces of the inner core. After the roller holder rotates into the inner core, the adjusting component can limit the core shaft at the bottom of the guiding groove through the limiting parts, so that the roller holder cannot rotate out of the inner core.

[0010] Preferably, the limiting part includes: a limiting clamping rod, the end of which is set to be arc-shaped, and the arc-shaped end of the limiting clamping rod can smoothly contact the core shaft and limit the core shaft; an elastic rotating rod, which is fixedly connected to the limiting clamping rod through a rotating ring and is rotatably installed on the outside of the inner core; when the arc-shaped end of the limiting clamping rod is not in contact with the core shaft, the elastic rotating rod can drive the limiting clamping rod to rotate after receiving a downward pressure, and during this process, the elastic rotating rod will not deform downward. When the arc-shaped end of the limiting clamping rod rotates to abut against the core shaft, the elastic rotating rod will deform downward when it continues to receive a downward pressure.

[0011] Preferably, the adjusting component further includes: a partition plate located above the thermal printer holder; an adjusting plate located above the partition plate; a first guide post fixedly installed on the top of the thermal printer holder and passing through the adjusting plate and the partition plate and extending above the adjusting plate; a first elastic member fixedly installed between the adjusting plate and the partition plate, which can provide a downward thrust to the partition plate; a pressure sensor fixedly installed at the bottom of the partition plate; the first elastic member presses down the partition plate, so that the detection end of the pressure sensor abuts against the top of the thermal printer holder, and the pressure value between the thermal sheet and the rubber roller is transmitted to the pressure sensor through the thermal printer holder, realizing the monitoring of the pressure value between the thermal sheet and the rubber roller.

[0012] Preferably, the adjusting assembly further includes: vertical grooves penetrating through both sides of the inner core; extension plates fixedly installed on the sides of the adjusting plates and extending through the vertical grooves to the outside of the inner core; connecting ears fixedly installed on the inner sides of the inner cores; second guide posts fixedly installed on the tops of the adjusting plates and penetrating above the connecting ears; and second elastic members fixedly installed between the tops of the connecting ears and the second guide posts. The second elastic members can provide an upward thrust to the second guide posts, so that the extension plates are located at the highest positions within the vertical grooves.

[0013] Preferably, the adjusting assembly further includes: a driving rod slidably installed on the side of the inner core, with the bottom end of the driving rod abutting against the top end of the elastic rotating rod; a connecting rod fixedly installed at the top end of the driving rod and located above the extension plate; and a micro linear motor fixedly installed on the side of the inner core, with its movable end fixedly connected to the driving rod. The micro linear motor can drive the driving rod to slide up and down.

[0014] Preferably, the adjusting assembly further includes: a pressing frame fixedly installed at the bottom of the thermal sensitive frame; and a pressing rod fixedly installed at the top of the roller frame. When the roller frame rotates out of the inner core, the pressing rod will force the pressing frame to drive the thermal sensitive frame to move upward, squeezing the pressure sensor.

[0015] Preferably, the printing module further includes: a housing sleeved outside the inner core; a cover plate rotatably installed on the front side of the housing, with the roller frame fixedly installed on the cover plate. By rotating the cover plate, the rubber roller and the thermal sensitive sheet can be brought into contact with or separated from each other; a paper bin fixedly installed inside the housing and located behind the inner core for storing printing paper; and a driving part installed outside the inner core for driving the rubber roller to rotate.

[0016] The technical effects and advantages of the present invention are as follows: 1. By adjusting the adjusting assembly to the first state, the arc-shaped end of the limit clamping rod restricts the core shaft at the bottom of the guiding groove, and the core shaft cannot slide along the guiding groove. In this way, customers cannot open the cover plate from the outside, avoiding damage to the internal structure of the device and ensuring the normal use of the device.

[0017] 2. Through the coordinated use of the pressing frame and the pressing rod, when a customer forcibly opens the cover plate from the outside, the pressing rod pushes the pressing frame upward. The pressure sensor monitors and transmits information about the change in the pressure value between the partition plate and the thermal sensitive frame to the controller, and the controller issues an alarm through the alarm module to remind that a customer is trying to forcibly open the cover plate from the outside.

[0018] 3. The present invention realizes the real-time monitoring of the pressure between the rubber roller and the thermal sheet during the printing process by setting a pressure sensor; when the stable pressure between the thermal sheet and the rubber roller cannot be maintained, by adjusting the adjusting component to the second state, the adjusting plate presses down on the first elastic member and the partition plate, thereby increasing the pressure exerted by the pressure sensor on the thermal holder, and further increasing the pressure between the thermal sheet and the rubber roller, so as to realize the adjustment of the pressure between the rubber roller and the thermal sheet, maintain a stable pressure between the rubber roller and the thermal sheet, and ensure the smooth progress of the bill printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the positions of the scanning module and the printing module of the present invention.

[0021] Figure 3 It is a schematic diagram of the cooperation between the outer shell and the cover plate of the present invention.

[0022] Figure 4 It is a schematic diagram of the installation position of the paper bin of the present invention.

[0023] Figure 5 It is a schematic diagram of the installation position of the roller holder of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the inner core of the present invention.

[0025] Figure 7 It is a schematic diagram of the installation position of the connecting ear of the present invention.

[0026] Figure 8 It is a schematic diagram of the cooperation between the abutting frame and the abutting rod of the present invention.

[0027] Figure 9 It is a schematic diagram of the cooperation between the thermal sheet and the rubber roller of the present invention.

[0028] Figure 10 It is a schematic diagram of the structure of the adjusting component of the present invention.

[0029] Figure 11 It is a schematic diagram of the structure of the adjusting component in the initial state of the present invention.

[0030] Figure 12 It is a schematic diagram of the structure of the adjusting component in the first state of the present invention.

[0031] Figure 13 It is a schematic diagram of the structure of the adjusting component in the second state of the present invention.

[0032] In the figure: 1. Loading platform; 2. Scanning module; 3. Printing module; 4. Adjusting component; 5. Display screen; 31. Rubber roller; 32. Thermal printer holder; 33. Thermal printer; 34. Inner core; 35. Roller holder; 36. Core shaft; 37. Guide groove; 38. Outer shell; 39. Cover plate; 310. Paper bin; 311. Driving part; 41. Limiting part; 42. Partition board; 43. Adjusting plate; 44. First guide post; 45. First elastic part; 46. Pressure sensor; 47. Vertical groove; 48. Extension plate; 49. Connecting ear; 410. Second guide post; 411. Second elastic part; 412. Driving rod; 413. Connecting rod; 414. Micro linear motor; 415. Jacking frame; 416. Jacking rod; 4101. Limiting clamping rod; 4102. Elastic rotating rod; 4103. Rotating ring. Detailed implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] The present invention provides a self-service cash register integrated machine as Figures 1 to 13 shown, including: A loading platform 1 for placing goods and weighing them. A weighing pan and a weighing sensor are installed inside the loading platform 1. The goods are placed on the weighing pan for weighing, and the weighing information is transmitted to the controller. The weighing pan and the weighing sensor are prior arts and will not be elaborated here.

[0035] A scanning module 2 for collecting image information of the goods on the loading platform 1. The scanning module 2 includes a camera and an image recognition module. The camera is used to capture the image information of the goods on the weighing pan and transmit it to the image recognition module for processing. The camera and the image recognition module are prior arts and will not be elaborated here.

[0036] A printing module 3, which includes a rubber roller 31 and a thermal printer holder 32. The rubber roller 31 cooperates with the thermal printer 33 at the bottom of the thermal printer holder 32 to print shopping receipts.

[0037] Specifically, the printing module 3 further includes an inner core 34 and a roller holder 35 rotatably installed on the front side of the inner core 34. An installation groove is provided at the top of the roller holder 35. The core shaft 36 in the middle of the rubber roller 31 is rotatably installed in the installation groove. When the roller holder 35 rotates into the inner core 34, the core shaft 36 in the middle of the rubber roller 31 is embedded into the guide groove 37 on the side of the inner core 34. At this time, the rubber roller 31 is in contact with the thermal printer 33, and the adjusting component 4 limits the rubber roller 31 through the core shaft 36.

[0038] More specifically, the printing module 3 further includes: a housing 38 sleeved outside the inner core 34; a cover plate 39 rotatably mounted on the front side of the housing 38, a roller frame 35 fixedly mounted on the cover plate 39, and the rubber roller 31 and the roller frame 35 rotate synchronously with the cover plate 39. By rotating the cover plate 39, the rubber roller 31 and the thermal sheet 33 can be brought into contact with or separated from each other; a paper bin 310 fixedly mounted inside the housing 38 and located behind the inner core 34 for storing printing paper. The printing paper passes between the rubber roller 31 and the thermal sheet 33 to achieve the printing of bills; a driving part 311 mounted outside the inner core 34 for driving the rubber roller 31 to rotate.

[0039] It should be noted that the driving part 311 includes a first gear, a second gear and a belt pulley. The first gear is fixedly mounted at one end of the core shaft 36. The second gear and the belt pulley are both rotatably mounted outside the inner core 34. The first gear and the second gear are meshed with each other. A micro driving motor is fixedly mounted inside the inner core 34. The output shaft of the micro driving motor is connected to the belt pulley and the belt pulley and the second gear are both connected by belt drives. The micro driving motor drives the second gear to rotate through the belt and the belt pulley. The second gear drives the core shaft 36 to rotate through the first gear, so that the core shaft 36 drives the rubber roller 31 to rotate, and at this time, the conveying and printing of the printing paper are realized.

[0040] The adjusting assembly 4. When the adjusting assembly 4 is in the initial state, the guiding groove 37 is in an open state, which is convenient for the core shaft 36 to be inserted into the guiding groove 37. When the adjusting assembly 4 is adjusted to the first state, the position of the rubber roller 31 can be limited to prevent the rubber roller 31 from separating from the thermal frame 32. When the adjusting assembly 4 is adjusted to the second state, the pressure between the rubber roller 31 and the thermal frame 32 can be adjusted. Moreover, the adjusting assembly 4 can monitor the pressure between the rubber roller 31 and the thermal frame 32 in real time. When the two are forced to separate, an alarm can be given.

[0041] Specifically, the adjusting assembly 4 includes two limiting parts 41 symmetrically and rotatably mounted on the two outer sides of the inner core 34. After the roller frame 35 rotates into the inner core 34, the adjusting assembly 4 can limit the core shaft 36 at the bottom of the guiding groove 37 through the limiting parts 41, so that the roller frame 35 cannot rotate out of the inner core 34.

[0042] More specifically, the limiting part 41 includes: a limiting clamping rod 4101, the end of which is arc-shaped. The arc-shaped end of the limiting clamping rod 4101 can smoothly contact the mandrel 36 and limit the mandrel 36, and the arc-shaped end will not interfere with the rotation of the mandrel 36; an elastic rotating rod 4102, which is fixedly connected to the limiting clamping rod 4101 through a rotating ring 4103 and is rotatably installed on the outside of the inner core 34. When the elastic rotating rod 4102 is subjected to a downward extrusion force, it will drive the limiting clamping rod 4101 to rotate through the rotating ring 4103, so that the arc-shaped end of the limiting clamping rod 4101 moves upward and abuts against the mandrel 36. The weight of the arc-shaped end of the limiting clamping rod 4101 is greater than that of the elastic rotating rod 4102. When the elastic rotating rod 4102 is not subjected to a downward extrusion force, the position of the arc-shaped end of the limiting clamping rod 4101 is lower than the height of the guiding groove 37.

[0043] It should be noted that when the arc-shaped end of the limiting clamping rod 4101 does not contact the mandrel 36, the elastic rotating rod 4102 can drive the limiting clamping rod 4101 to rotate through the rotating ring 4103 after being subjected to a downward pressure. During this process, the elastic rotating rod 4102 will not deform downward. When the arc-shaped end of the limiting clamping rod 4101 rotates to abut against the mandrel 36, the elastic rotating rod 4102 will deform downward when it continues to be subjected to a downward pressure.

[0044] Meanwhile, the adjusting assembly 4 further includes: a partition plate 42, which is located above the thermal-sensitive holder 32; an adjusting plate 43, which is located above the partition plate 42; a first guide post 44, which is fixedly installed at the top of the thermal-sensitive holder 32, penetrates through the adjusting plate 43 and the partition plate 42 and extends above the adjusting plate 43, and the top end of the first guide post 44 will not break out of the adjusting plate 43; a first elastic member 45, which is fixedly installed between the adjusting plate 43 and the partition plate 42 and can provide a downward thrust to the partition plate 42; a pressure sensor 46, which is fixedly installed at the bottom of the partition plate 42.

[0045] It should be noted that the first elastic member 45 presses down the partition plate 42, so that the detection end of the pressure sensor 46 abuts against the top of the thermal-sensitive holder 32. The pressure value between the thermal-sensitive sheet 33 and the rubber roller 31 is transmitted to the pressure sensor 46 through the thermal-sensitive holder 32, and the pressure sensor 46 transmits the monitored pressure value to the controller to realize the real-time monitoring of the pressure value between the thermal-sensitive sheet 33 and the rubber roller 31.

[0046] Moreover, the adjusting component 4 further includes: a vertical groove 47 penetrating through both sides of the inner core 34; an extension plate 48 fixedly installed on the side surface of the adjusting plate 43 and extending to the outside of the inner core 34 through the vertical groove 47; a connecting ear 49 fixedly installed on the inner side of the inner core 34; a second guide post 410 fixedly installed on the top of the adjusting plate 43 and penetrating above the connecting ear 49. The second guide post 410 can slide up and down along the connecting ear 49 and will not fall out of the connecting ear 49; a second elastic member 411 fixedly installed between the top of the connecting ear 49 and the second guide post 410. The second elastic member 411 can provide an upward thrust to the second guide post 410, so that the extension plate 48 is located at the highest position in the vertical groove 47; a driving rod 412 slidably installed on the side surface of the inner core 34, and the bottom end of the driving rod 412 abuts against the top end of the elastic rotating rod 4102; a connecting rod 413 fixedly installed at the top end of the driving rod 412 and located above the extension plate 48; a micro linear motor 414 fixedly installed on the side surface of the inner core 34, and its movable end is fixedly connected to the driving rod 412. The micro linear motor 414 is electrically connected to the controller. The controller can adjust the working state of the micro linear motor 414, and the micro linear motor 414 can drive the driving rod 412 to slide up and down.

[0047] Furthermore, the adjusting component 4 further includes: a pressing frame 415 fixedly installed at the bottom of the thermal sensitive frame 32; a pressing rod 416 fixedly installed at the top of the roller frame 35. The side surface of the pressing frame 415 is an inclined arc surface structure and the top of the pressing rod 416 is hemispherical, which is convenient for the pressing rod 416 to slide along the pressing frame 415; when the roller frame 35 rotates out of the inner core 34, the pressing rod 416 will force the pressing frame 415 to drive the thermal sensitive frame 32 to move upward, squeezing the pressure sensor 46.

[0048] A display screen 5 is used to display shopping information and provide a user interaction interface. A controller is installed inside the display screen 5. The controller is used to receive and process information from each module and control the overall operation of the device. The setting of the controller is prior art and will not be elaborated here, nor is it shown in the figure. The controller transmits the received commodity information, price, payment code, etc. to the display screen 5 for users to observe and operate.

[0049] In summary, when installing the rubber roller 31, first adjust the adjusting component 4 to the initial state, such as Figure 11As shown, at this time, the driving rod 412 is at the highest position, the connecting rod 413 is not disengaged from the extension plate 48, and the extension plate 48 is at the highest position in the vertical groove 47 under the thrust of the second elastic member 411. The bottom end of the driving rod 412 does not press the elastic rotating rod 4102 downward, and the arc-shaped end of the limit clamping rod 4101 is located below the guiding groove 37. The guiding groove 37 is in an open state. At this time, the rotating cover plate 39 is buckled on the front side of the outer shell 38, and the rubber roller 31 rotates to a state where it is in contact with the thermal-sensitive sheet 33.

[0050] Subsequently, the adjusting assembly 4 is adjusted to the first state, that is, as Figure 12 shown. The first state is that the limit clamping rod 4101 restricts the core shaft 36 at the bottom of the guiding groove 37, and at this time, the connecting rod 413 just abuts against the top end of the extension plate 48, and the extension plate 48 is still at the highest position in the vertical groove 47. Specifically, the process of adjusting the adjusting assembly 4 from the initial state to the first state is as follows: the micro linear motor 414 pushes the driving rod 412 downward, and the bottom end of the driving rod 412 will push down the elastic rotating rod 4102, so that the elastic rotating rod 4102 drives the limit clamping rod 4101 to rotate through the rotating ring 4103 until the arc-shaped end of the limit clamping rod 4101 abuts against the core shaft 36, thereby preventing the core shaft 36 from sliding out along the guiding groove 37.

[0051] When the first elastic member 45 weakens in elasticity after long-term use, the first elastic member 45 will not be able to provide sufficient thrust to the partition plate 42. At this time, the downward pressure exerted by the partition plate 42 on the thermal-sensitive holder 32 through the pressure sensor 46 will decrease, resulting in a decrease in the pressure between the thermal-sensitive sheet 33 and the rubber roller 31, causing the pressure between the thermal-sensitive sheet 33 and the rubber roller 31 to be unstable, and further affecting the printing effect. At this time, the adjusting assembly 4 is adjusted to the second state, that is, as Figure 13As shown in the figure, in the second state, the limit latch 4101 remains in contact with the mandrel 36, the elastic rotating rod 4102 deforms downward, the connecting rod 413 presses down the extension plate 48, so that the adjusting plate 43 applies a downward pressure to the first elastic member 45 and the partition plate 42; specifically, the process of the adjusting assembly 4 adjusting from the first state to the second state is as follows: the micro linear motor 414 pushes the driving rod 412 to move further downward, the bottom end of the driving rod 412 further presses downward against the elastic rotating rod 4102, and since the arc end of the limit latch 4101 has been pressed against the mandrel 36 at this time, the limit latch 4101 will not continue to rotate and always remains in contact with the mandrel 36. The bottom end of the driving rod 412 will cause the elastic rotating rod 4102 to deform downward. During the further downward movement of the driving rod 412, the connecting rod 413 will press down the extension plate 48, so that the extension plate 48 drives the adjusting plate 43 to move downward, applying a downward pressure to the first elastic member 45 and the partition plate 42, thereby increasing the pressure applied by the partition plate 42 and the pressure sensor 46 to the thermal sensitive bracket 32, and further increasing the pressure between the thermal sensitive sheet 33 and the rubber roller 31, so as to realize the adjustment of the pressure between the rubber roller 31 and the thermal sensitive sheet 33.

[0052] When a customer forcibly opens the cover plate 39 from the outside, at this time the roller bracket 35 will rotate outward following the cover plate 39, and the mandrel 36 pushes the limit latch 4101 to rotate. Since the adjusting assembly 4 is in the first state as shown in the figure at this time, and the bottom end of the driving rod 412 presses against the elastic rotating rod 4102, the elastic rotating rod 4102 will deform downward to a certain extent. At the same time, the roller bracket 35 drives the abutting rod 416 to move synchronously. Since the top of the abutting rod 416 will rise first during the outward rotation of the roller bracket 35, the abutting rod 416 will push the thermal sensitive bracket 32 upward through the abutting frame 415, causing the pressure value monitored by the pressure sensor 46 to change. At this time, the pressure sensor 46 transmits the monitoring signal to the controller, and the controller controls the alarm module to give an alarm. Figure 12 By adjusting the adjusting assembly 4 to the first state through the controller, the arc end of the limit latch 4101 is in contact with the mandrel 36, and the mandrel 36 is restricted at the bottom of the guide groove 37, and the mandrel 36 cannot slide along the guide groove 37, so that the customer cannot open the cover plate 39 from the outside, thus avoiding damage to the internal structure of the equipment and ensuring the normal use of the equipment.

[0053] When a customer forcibly opens the cover plate 39 from the outside, the abutting rod 416 pushes the abutting frame 415 upward, the pressure sensor 46 monitors that the pressure value between the partition plate 42 and the thermal sensitive bracket 32 changes, and transmits the information of the pressure value change to the controller in time, so that the controller gives an alarm through the alarm module to remind that a customer is trying to forcibly open the cover plate 39 from the outside.

[0054] When a customer forcibly opens the cover plate 39 from the outside, the abutting rod 416 pushes the abutting frame 415 upward, the pressure sensor 46 monitors that the pressure value between the partition plate 42 and the thermal sensitive bracket 32 changes, and transmits the information of the pressure value change to the controller in time, so that the controller gives an alarm through the alarm module to remind that a customer is trying to forcibly open the cover plate 39 from the outside.

[0055] By arranging a pressure sensor 46 between the partition plate 42 and the thermal head holder 32, real-time monitoring of the pressure between the rubber roller 31 and the thermal head 33 during the printing process is achieved; When the stable pressure between the thermal head 33 and the rubber roller 31 cannot be maintained due to the weakened elasticity of the first elastic member 45, the adjusting assembly 4 is adjusted to the second state by the controller, so that the connecting rod 413 presses down on the first elastic member 45 and the partition plate 42 through the adjusting plate 43, thereby increasing the pressure exerted by the pressure sensor 46 on the thermal head holder 32, and further increasing the pressure between the thermal head 33 and the rubber roller 31, so as to adjust the pressure between the rubber roller 31 and the thermal head 33, maintain a stable pressure between the rubber roller 31 and the thermal head 33, and ensure the smooth progress of the bill printing process.

[0056] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-service cashier integrated machine, characterized in that, Comprising: A stage for placing goods and weighing them; A scanning module for collecting image information of goods on the stage; A printing module, which includes a rubber roller and a thermal rack. The rubber roller cooperates with the thermal film at the bottom of the thermal rack for printing shopping receipts; An adjusting component. When the adjusting component is adjusted to the first state, it can limit the position of the rubber roller to prevent the rubber roller from separating from the thermal rack. When the adjusting component is adjusted to the second state, it can adjust the pressure between the rubber roller and the thermal rack. Moreover, the adjusting component can monitor the pressure between the rubber roller and the thermal rack in real time and can give an alarm when the two are forced to separate; A display screen for displaying shopping information and providing a user interaction interface.

2. The self-service cash register all-in-one machine according to claim 1, characterized in that: The printing module further includes an inner core and a roller rack rotatably installed on the front side of the inner core. When the roller rack rotates into the inner core, the core shaft in the middle of the rubber roller is embedded into the guiding groove on the side of the inner core. At this time, the rubber roller is in contact with the thermal film, and the adjusting component limits the rubber roller through the core shaft.

3. The self-service cash register integrated machine according to claim 2, wherein: The adjusting component includes two symmetrically rotatably installed limiting parts on the two outer sides of the inner core. After the roller rack rotates into the inner core, the adjusting component can limit the core shaft at the bottom of the guiding groove through the limiting parts, so that the roller rack cannot rotate out of the inner core.

4. The self-service cash register integrated machine according to claim 3, characterized in that: The limiting part includes: A limiting clamping rod, the end of which is arc-shaped. The arc-shaped end of the limiting clamping rod can smoothly contact the core shaft and limit the core shaft; An elastic rotating rod, which is fixedly connected to the limiting clamping rod through a rotating ring and is rotatably installed on the outside of the inner core; When the arc-shaped end of the limiting clamping rod does not contact the core shaft, the elastic rotating rod can drive the limiting clamping rod to rotate after being subjected to a downward pressure. During this process, the elastic rotating rod will not deform downward. When the arc-shaped end of the limiting clamping rod rotates to abut against the core shaft, the elastic rotating rod will deform downward when it continues to be subjected to a downward pressure.

5. The self-service cash register integrated machine according to claim 4, characterized in that: The adjusting component further includes: A partition plate located above the thermal rack; An adjusting plate located above the partition plate; A first guide post fixedly installed on the top of the thermal rack and passing through the adjusting plate and the partition plate and extending above the adjusting plate; A first elastic member fixedly installed between the adjusting plate and the partition plate, which can provide a downward thrust to the partition plate; A pressure sensor fixedly installed at the bottom of the partition plate; The first elastic member presses down the partition plate, so that the detection end of the pressure sensor abuts against the top of the thermal rack. The pressure value between the thermal film and the rubber roller is transmitted to the pressure sensor through the thermal rack to realize the monitoring of the pressure value between the thermal film and the rubber roller.

6. The self-service cash register integrated machine according to claim 5, wherein: The adjusting component further includes: Vertical grooves penetratingly opened on both sides of the inner core; An extension plate fixedly installed on the side of the adjusting plate and passing through the vertical groove and extending to the outside of the inner core; A connecting ear fixedly installed on the inner side of the inner core; A second guide post fixedly installed on the top of the adjusting plate and penetrating above the connecting ear; A second elastic member fixedly installed between the top of the connecting ear and the second guide post. The second elastic member can provide an upward thrust to the second guide post, so that the extension plate is at the highest position in the vertical groove.

7. The self-service cash register integrated machine according to claim 6, characterized in that: The adjusting component further includes: A driving rod slidably installed on the side of the inner core, and the bottom end of the driving rod abuts against the top end of the elastic rotating rod; The connecting rod is fixedly installed at the top end of the driving rod and is located above the extension plate; The micro linear motor is fixedly installed on the side of the inner core, and its movable end is fixedly connected to the driving rod. The micro linear motor can drive the driving rod to slide up and down.

8. A self-service cash register integrated machine according to claim 7, characterized in that: The adjusting assembly further includes: The abutting frame is fixedly installed at the bottom of the thermal sensitive frame; The abutting rod is fixedly installed at the top of the roller frame; When the roller frame rotates out of the inner core, the abutting rod will force the abutting frame to drive the thermal sensitive frame to move upward, causing extrusion on the pressure sensor.

9. The self-service cash register integrated machine according to claim 8, characterized in that: The printing module further includes: The outer shell is sleeved outside the inner core; The cover plate is rotatably installed on the front side of the outer shell. The roller frame is fixedly installed on the cover plate. By rotating the cover plate, the rubber roller and the thermal sensitive sheet can be brought into contact with or separated from each other; The paper bin is fixedly installed inside the outer shell and is located at the rear side of the inner core for storing printing paper; The driving part is installed outside the inner core and is used to drive the rubber roller to rotate.

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