Invoice box structure of bill module and portable bill module

Abstract

The present application relates to the technical field of bill dispensing equipment, and provides an invoice box structure for a bill module and a portable bill module. The invoice box structure is disposed within a box and includes a ticket box assembly, a paper feed and separation assembly, and an elastic suspension assembly. The paper feed and separation assembly is rotatably disposed within the box, and the elastic suspension assembly is disposed within the box. The elastic suspension assembly is connected to the paper feed and separation assembly and provides an upward pulling force for the paper feed and separation assembly to rotate upward. The box is provided with an insertion port, through which the ticket box assembly is inserted into the box and abuts the elastic suspension assembly, thereby canceling the upward pulling force exerted on the paper feed and separation assembly. Simultaneously, the paper feed and separation assembly automatically rotates downward under its own weight, causing the suction roller of the paper feed and separation assembly to press against the bill in the ticket box assembly. By maintaining a stable pressure between the suction roller and the bill, the paper pulling force of the bill does not change, thereby ensuring that no bills get stuck or overlapped during bill dispensing.

Description

Technical Field

[0001] The present application belongs to the technical field of bill issuing equipment, and more specifically, relates to an invoice box structure of a bill module and a portable bill module. Background Art

[0002] With the development of self-service equipment in the financial and other industries, higher requirements are placed on the stability of the equipment. It is required that the bill issuance module should not have duplicates when issuing bills, and that the card ticket failure rate should be low.

[0003] Existing ticket dispensing equipment typically dispenses tickets via a fixed roller assembly. As the thickness of a ticket decreases, the roller assembly's pressure on the ticket decreases, causing variations in the paper-tip force. This uneven paper-tip force can lead to ticket jams and the simultaneous dispensing of multiple tickets. Consequently, the failure rate for both duplicate and jammed tickets in existing ticket dispensing equipment remains high, typically exceeding 1 in 1000. This rate can even exceed 1 in 100 in particularly humid and hot environments due to the increased stickiness between tickets. This creates significant inconvenience for customers and significantly impacts the company's reputation. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide an invoice box structure of a bill module to solve the technical problem in the prior art that due to changes in bill pressure, the paper rubbing force changes during the invoice process, thereby causing ticket jams or duplicates.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide an invoice box structure of a bill module, which is arranged in a box body, including a ticket box assembly, a paper feeding and separating assembly and an elastic hanging assembly. The paper feeding and separating assembly is rotatably arranged in the box body, and the elastic hanging assembly is arranged in the box body. The elastic hanging assembly is connected to the paper feeding and separating assembly and provides an upward pulling force for the paper feeding and separating assembly to rotate upward. An insertion port is provided on the box body, and the ticket box assembly is inserted into the box body from the insertion port and abuts against the elastic hanging assembly, so that the elastic hanging assembly cancels the upward pulling force on the paper feeding and separating assembly. At the same time, the paper feeding and separating assembly automatically rotates downward under its own gravity so that the paper suction wheel of the paper feeding and separating assembly presses against the bill of the ticket box assembly.

[0006] In one embodiment, the ticket box assembly includes an invoice box and a ticket return box, wherein the ticket return box is hinged to the invoice box and is arranged above the invoice box.

[0007] In one embodiment, a supporting plate is movably provided in the invoice box, and a supporting spring is provided between the bottom plate of the invoice box and the supporting plate to drive the supporting plate to move upward.

[0008] In one embodiment, a rear baffle and a side baffle are movably provided on the supporting plate, and a plurality of rollers are provided on the supporting plate.

[0009] In one embodiment, the invoice box is movably provided with a front baffle, and the invoice box is provided with a return spring, one end of the return spring is fixed to the top of the side wall of the invoice box, and the other end is connected to the front baffle, and a slider is slidingly provided on the side wall of the invoice box, and a first pull rope is provided between the slider and the front baffle. When the ticket box assembly is inserted into the box body, the slider slides backward, and the front baffle is pulled downward by the first pull rope and the return spring is stretched.

[0010] In one embodiment, the elastic suspension assembly includes a mounting post, a push rod, a lifting spring and a second pull rope. The mounting post is fixed in the box body. A through hole is provided in the mounting post. The push rod is movably inserted in the through hole. The lifting spring is sleeved on the push rod and the two ends of the lifting spring are respectively abutted against the end cap of the push rod and the end face of the mounting post. One end of the second pull rope is connected to the push rod in the through hole, and the other end is connected to the paper feeding and sheeting assembly. The length direction of the push rod is parallel to the insertion direction of the ticket box assembly. When no external force is applied, the lifting spring pulls the paper feeding and sheeting assembly upward through the second pull rope.

[0011] In one embodiment, the paper feeding and sheeting assembly includes a mounting bracket, a main shaft, an upper sheeting wheel, a lower sheeting wheel, a drive motor and the paper suction wheel. The main shaft is rotatably arranged in the box body, the mounting bracket is rotatably mounted on the main shaft, the drive motor is fixed in the box body and is connected to the main shaft through a main transmission belt. The upper sheeting wheel and the lower sheeting wheel are rotatably arranged on the mounting bracket, the paper suction wheel is rotatably arranged on the mounting bracket, the main shaft and the lower sheeting wheel and the paper suction wheel are connected through a synchronous belt assembly; the second pull rope is connected to the mounting bracket.

[0012] Another object of the present application is to provide a portable ticket module, comprising a box body, a printing component, a reversing component and the invoice box structure of the ticket module as described above, wherein a ticket conveying channel is provided in the box body, and a ticket outlet is provided on the box body, one end of the ticket conveying channel is connected to the ticket outlet, and the other end is connected to the paper feeding and sheeting component.

[0013] In one embodiment, when the ticket box assembly is assembled in the box body, the ticket return box of the ticket box assembly is located below the bill conveying channel; and a docking channel is rotatably provided on the bill conveying channel.

[0014] The beneficial effects of the invoice box structure and portable invoice module of the ticket module provided by the present application are: when the ticket box assembly is not installed in the box, the paper feeding and separating assembly rotates upward under the action of the elastic hanging assembly, so that the paper suction wheel is in a higher position; when the ticket box assembly is inserted into the box, it first abuts the elastic hanging assembly, so that the elastic hanging assembly gradually cancels the upward pulling force on the paper feeding and separating assembly, and the paper feeding and separating assembly rotates downward under the action of its own gravity and presses the paper suction wheel against the bill; as more bills are issued, the thickness of the bills in the ticket box assembly gradually decreases, and at this time the paper feeding and separating assembly will also gradually decrease due to its own gravity, always keeping the pressure between the paper suction wheel and the bill in a stable state, so that the paper rubbing force of the bill will not change, ensuring that there will be no stuck or doubled bills when the bills are issued. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 A schematic diagram of the structure of a portable bill module provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the internal structure of the box in the portable ticket module provided in an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the main structure of the ticket box component in the invoice box structure of the bill module provided in an embodiment of the present application;

[0019] Figure 4 This is a schematic diagram of the structure of the invoice box structure of the bill module provided in an embodiment of the present application after the bill is placed in the ticket box component;

[0020] Figure 5 A schematic diagram of the working principle of the ticket box component in the invoice box structure of the bill module provided in an embodiment of the present application;

[0021] Figure 6 A schematic diagram of the insertion process of the ticket box assembly in the invoice box structure of the ticket module provided in an embodiment of the present application into the box body;

[0022] Figure 7This is a structural diagram showing the invoice box structure of the bill module provided in an embodiment of the present application, in which the ticket box assembly is completely installed in the box;

[0023] Figure 8 A schematic diagram of the structure of the ticket box component in the invoice box structure of the ticket module provided in an embodiment of the present application, in which the bills are about to be issued;

[0024] Figure 9 A schematic diagram of the three-dimensional structure of the paper feeding and sheet separation component in the invoice box structure of the bill module provided in an embodiment of the present application;

[0025] Figure 10 This is a schematic top view of the paper feeding and sheet separation components in the invoice box structure of the bill module provided in an embodiment of the present application.

[0026] Among them, the reference numerals in the figures are:

[0027] 1. Box body; 11. Ticket conveying channel; 12. Ticket outlet; 13. Insertion port; 14. Docking channel; 2. Ticket box assembly; 21. Invoice box; 211. Slider; 212. First pull rope; 22. Ticket return box; 23. Loading plate; 24. Support spring; 25. Rear baffle; 26. Side baffle; 27. Roller; 28. Front baffle; 29. ​​Return spring; 3. Paper feeding and sheeting assembly; 31. Mounting bracket; 32. Main shaft; 33. Upper sheeting wheel; 34. Lower sheeting wheel; 35. Drive motor; 36. Paper suction wheel; 37. Main transmission belt; 38. Synchronous belt assembly; 381. First synchronous belt; 382. Second synchronous belt; 4. Elastic suspension assembly; 41. Mounting column; 42. Push rod; 43. Lifting spring; 44. Second pull rope; 5. Printing assembly; 6. Reversing assembly. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0029] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0032] like Figures 1-10 As shown, a portable receipt module provided in an embodiment of the present application is now described in detail. The portable receipt module includes a housing 1, a printing assembly 5, a reversing assembly 6, and an invoice box structure of the receipt module disposed within the housing 1. The housing 1 is provided with a receipt conveying passage 11. The printing assembly 5 and the reversing assembly 6 respectively print and reverse the receipts within the receipt conveying passage 11. The printing assembly 5 and the reversing assembly 6 are conventional structures. A detection sensor assembly is also provided within the housing 1 for checking whether the receipt is normal. The invoice box structure of the receipt module is used to issue receipts 7.

[0033] like Figure 2 and Figure 3 As shown, in this embodiment, the invoice box structure of the bill module includes a ticket box assembly 2, a paper feed and separation assembly 3, and an elastic suspension assembly 4. The paper feed and separation assembly 3 is rotatably mounted within the box body 1. The elastic suspension assembly 4 is disposed within the box body 1 and above the paper feed and separation assembly 3. The elastic suspension assembly 4 is connected to the paper feed and separation assembly 3 and provides an upward pull for the paper feed and separation assembly 3 to rotate upward. The box body 1 is provided with an insertion port 13, through which the ticket box assembly 2 can be removably mounted within the box body 1, making it convenient to add bills 7. The box body 1 is provided with a ticket outlet 12. One end of a bill conveying channel 11 is connected to the ticket outlet 12, and the other end is connected to the paper feed and separation assembly 3. In other words, the paper feed and separation assembly 3 feeds bills into the bill conveying channel 11. After operation by the reversing assembly 6, the printing assembly 5, and other components, the normal bills are discharged from the ticket outlet 12.

[0034] In this embodiment, the ticket box assembly 2 is inserted into the box body 1 from the insertion port 13 and abuts the elastic hanging assembly 4, so that the elastic hanging assembly 4 cancels the upward pulling force on the paper feeding and separating assembly 3. At the same time, the paper feeding and separating assembly 3 automatically rotates downward under its own gravity so that the paper suction wheel 36 of the paper feeding and separating assembly 3 presses against the bill of the ticket box assembly 2.

[0035] First, the bills 7 are stacked and placed in the ticket box assembly 2. When the ticket box assembly 2 is not loaded into the box body 1, the paper feeding and sheeting assembly 3 rotates upward under the action of the elastic hanging assembly 4, so that the paper suction wheel 36 is in a higher position. When the ticket box assembly 2 is inserted into the box body 1, it first abuts the elastic hanging assembly 4, so that the elastic hanging assembly 4 gradually cancels the upward pulling force on the paper feeding and sheeting assembly 3, and the paper feeding and sheeting assembly 3 rotates downward under the action of its own gravity and presses the paper suction wheel 36 against the bills. As more bills are issued, the thickness of the bills 7 in the ticket box assembly 2 gradually decreases. At this time, the paper feeding and sheeting assembly 3 will also gradually decrease due to its own gravity, and the pressure between the paper suction wheel 36 and the bills 7 is always kept in a stable state. In this way, the paper rubbing force of the bill will not change, ensuring that there will be no stuck tickets or double tickets when the bills are issued.

[0036] In this embodiment, if Figure 3 、 Figure 4 and Figure 5 and Figure 7 As shown, the ticket box assembly 2 includes an invoice box 21 and a return ticket box 22. The return ticket box 22 is hinged to the rear end of the invoice box 21 and is arranged above the invoice box 21. The invoice box 21 is used to load the bills 7; the return ticket box 22 is used to recycle abnormal bills. In this embodiment, the front end of the invoice box 21 refers to the end of the invoice box 21 close to the paper feeding and sheeting assembly 3 after the invoice box 21 is inserted into the box body 1 (on the left side in the figure); the rear end of the invoice box 21 refers to the end close to the insertion port 13 (on the right side in the figure). In this embodiment, as Figure 7 As shown, when the ticket box assembly 2 is assembled in the box body 1, the ticket return box 22 of the ticket box assembly 2 is located below the bill conveying channel 11; a docking channel 14 is rotatably provided on the bill conveying channel 11, and the function of the docking channel 14 is that when the bill is abnormal, the docking channel 14 will recycle the abnormal bill into the ticket return box 22; when the bill is normal, the docking channel 14 is connected with the bill conveying channel 11 to realize the normal issuance of the bill.

[0037] like Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, in this embodiment, a supporting plate 23 is movably provided in the invoice box 21. A supporting spring 24 is provided between the bottom plate of the invoice box 21 and the supporting plate 23 to drive the supporting plate 23 to move upward. The supporting spring 24 provides an upward supporting force for the supporting plate 23. Figure 7As shown, when bills are stacked on the supporting plate 23, the supporting spring 24 is compressed due to the large number of bills; Figure 8 As shown, as the bills are issued, the thickness of the bill stack becomes thinner and the weight decreases, and the support spring 24 pushes the supporting plate 23 upward, so that the bills and the paper suction wheel 36 maintain a stable pressing state.

[0038] like Figure 5 As shown, in this embodiment, a rear baffle 25 and a side baffle 26 are movably provided on the supporting plate 23. The function of the rear baffle 25 and the side baffle 26 is to adapt to bills of different sizes so that the bills can be neatly placed on the supporting plate 23. A plurality of rollers 27 are provided on the supporting plate 23 to reduce friction and facilitate the movement of bills.

[0039] like Figure 3-5 As shown, in this embodiment, the invoice box 21 is movably provided with a front baffle 28, and the invoice box 21 is provided with a return tension spring 29. One end of the return tension spring 29 is fixed to the top of the side wall of the invoice box 21, and the other end is connected to the front baffle 28. A slider 211 is slidably provided on the side wall of the invoice box 21, and a first pull rope 212 is provided between the slider 211 and the front baffle 28. A positioning wheel is provided on the side wall of the invoice box 21 to make the first pull rope 212 have an L-shaped direction; when the ticket box assembly 2 is inserted into the box body 1, the box body 1 is The inner wall acts as a barrier for the slider 211. Specifically, the inner wall of the box body 1 is provided with a block or retaining groove to block the slider 211. As the ticket box assembly 2 continues to be pushed into the box body 1, the slider 211 slides backward. As the slider 211 slides backward (to the right in the figure), the first pull rope 212 pulls the front baffle 28 downward, and the return spring 29 is stretched. The front baffle 28 moves downward to the lower end, releasing the front end of the bill so that the suction wheel 36 can press against the bill. In this embodiment, the height of the front baffle 28 is half the height of the invoice box 21. The front end of the invoice box 21 is also provided with a fixed plate, which is fixed to the lower end of the invoice box 21. The front baffle 28 and the fixed plate are slidably connected by a matching groove and ridge. The front baffle 28 is a U-shaped plate, which facilitates the connection between the front baffle 28 and the return spring 29 on the side wall of the invoice box 21. When the ticket box assembly 2 is pulled out of the box body 1, the slider 211 is not restricted by external forces, and the return spring 29 returns to its initial state, causing the upper baffle to slide upward to the upper end, forming a bill placement cavity in the invoice box 21. The slider 211 slides forward (to the left in the figure) under the tension of the return spring 29. Figure 3 When no bill is placed, the front baffle 28 is at the upper end; Figure 4 and Figure 7 The bill assembly is assembled in the box body 1 and the front baffle 28 is at the lower end.

[0040] like Figure 2 、 Figure 6 、 Figure 7 and Figure 8 As shown, in this embodiment, the elastic suspension assembly 4 includes a mounting post 41, a push rod 42, a lifting spring 43, and a second pull rope 44. The mounting post 41 is fixed within the housing 1 and has a through hole defined therein. The push rod 42 is movably inserted into the through hole. The push rod 42 is a T-shaped rod. The lifting spring 43 is sleeved on the push rod 42, with its ends respectively abutting the end cap of the push rod 42 and the end surface of the mounting post 41. One end of the second pull rope 44 is connected to the push rod 42 within the through hole, and the other end is connected to the paper feed and separation assembly 3. The length of the push rod 42 is parallel to the insertion direction of the ticket box assembly 2. When no external force is applied, the lifting spring 43 pulls the paper feed and separation assembly 3 upward via the second pull rope 44. At least one elastic suspension assembly 4 is provided to ensure that it can pull the paper feed and separation assembly 3 upward.

[0041] like Figure 9 and Figure 10 As shown, the paper feeding and sheeting assembly 3 includes a mounting bracket 31, a main shaft 32, an upper sheeting wheel 33, a lower sheeting wheel 34, a drive motor 35 and a paper suction wheel 36. The main shaft 32 is rotatably arranged in the box body 1. The main shaft 32 is the rotation point of the paper feeding and sheeting assembly 3. The mounting bracket 31 is rotatably mounted on the main shaft 32. The mounting bracket 31 can rotate relative to the main shaft 32. A ticket separation channel is provided on the mounting bracket 31. The ticket separation channel is hinged at the docking point of the ticket conveying channel 11, so as to ensure that the channel size will not be affected during the rotation of the mounting bracket 31.

[0042] In this embodiment, a main pulley is provided on the main shaft 32, a drive motor 35 is fixed in the box body 1, and the output shaft of the drive motor 35 is connected to the main pulley on the main shaft 32 through a main transmission belt 37. The function of the drive motor 35 is to drive the main shaft 32 to rotate.

[0043] In this embodiment, the upper and lower separating wheels 33, 34 are rotatably mounted on the mounting bracket 31 via rotating shafts and are located on either side of the dispensing channel. The suction wheel 36 is rotatably mounted on the mounting bracket 31 via rotating shafts. The main shaft 32 is connected to the lower and suction wheels 34, 36, via a timing belt assembly 38. The timing belt assembly 38 includes a first timing belt 381 and a second timing belt 382. The first timing belt 381 connects the main shaft 32 to the rotating shaft of the lower separating wheel 34, while the second timing belt 382 connects the main shaft 32 to the rotating shaft of the suction wheel 36. A second pull rope 44 is connected to the mounting bracket 31. When the ticket box assembly 2 is inserted into the box body 1, the paper suction wheel 36 is pressed against the upper surface of the bill, and the drive motor 35 works, driving the main shaft 32 to rotate through the main transmission belt 37. When the main shaft 32 is driven, the lower separating wheel 34 and the paper suction wheel 36 are driven to rotate at the same time through the first synchronous belt 381 and the second synchronous belt 382. When the paper suction wheel 36 rotates, the bill is transported between the upper separating wheel 33 and the lower separating wheel 34, and then sent into the bill conveying channel 11 after the separating action of the upper separating wheel 33 and the lower separating wheel 34.

[0044] like Figure 6 As shown, the bills are first stacked in the invoice box 21, and then the ticket box assembly 2 is inserted into the box body 1 from the insertion port 13. During the insertion process, the slider 211 is blocked by the side wall of the box body 1, so that the position of the slider 211 is limited. When the ticket box assembly 2 continues to be inserted, the slider 211 slides backward relative to the invoice box 21, and then the front baffle 28 is pulled downward by the first pull rope 212, so that the front end of the bill is released;

[0045] like Figure 7 As shown, when the bill assembly is about to be inserted into place, the front side of the ticket return box 22 will press the top rod 42. When the bill assembly continues to be inserted, the top plate slides into the mounting column 41 and compresses the lifting spring 43. The paper feed and sheeting assembly 3 rotates downward under its own gravity. When the ticket box assembly 2 is inserted into place, the front baffle 28 is fully opened, and the paper suction wheel 36 of the paper feed and sheeting assembly 3 presses against the front upper surface of the bill.

[0046] The drive motor 35 works to dispense bills one by one through the paper suction wheel 36. During the dispensing process, the paper feeding and sheeting assembly 3 will continuously apply a stable pressure to the bill under its own gravity, and the support spring 24 will also continuously apply an upward supporting force to the bill. Therefore, even if the bill becomes thinner due to the advancement of dispensing, it will not affect the change of the paper picking force, ensuring that the bill will not be stuck or overlapped.

[0047] like Figure 8As shown, when the bills are almost exhausted, the mounting bracket 31 overlaps the front baffle 28 or the fixed plate, so that the paper feeding and separating assembly 3 does not continue to rotate downward. At this time, since the bills are very few and light in weight, the support spring 24 lifts the carrier plate 23 to ensure that the remaining bills are stably pressed against the suction wheel 36, ensuring normal conveyance of the bills.

[0048] In this embodiment, because the paper feed and separation assembly 3 moves downward and upward under its own weight and the bills are acted upon by the support spring 24, bill dispensing requires minimal space, resulting in a more compact structure. Furthermore, because the paper feed and separation assembly 3 continuously presses against the bills under its own weight, this fundamentally overcomes the existing problem of varying pickup force due to pressure fluctuations during bill dispensing, addressing issues such as ticket jamming and overlap caused by uneven pickup force. To address the need for minimal pressure when there are fewer bills, a mounting bracket 31 is attached to the front baffle 28 or fixed plate, keeping the suction roller 36 stationary. The support spring 24 then lifts the carrier plate 23, pressing the bills against the suction roller 36.

[0049] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. The invoice box structure of the bill module is arranged in the box body (1), and is characterized in that: The invention comprises a ticket box assembly (2), a paper feeding and separating assembly (3) and an elastic hanging assembly (4), wherein the paper feeding and separating assembly (3) is rotatably arranged in the box body (1) through a mounting bracket (31), and the elastic hanging assembly (4) is arranged in the box body (1), and the elastic hanging assembly (4) is connected to the paper feeding and separating assembly (3) and provides an upward pulling force for the paper feeding and separating assembly (3) to rotate upward, and an insertion port (13) is provided on the box body (1), and the ticket box assembly (2) is inserted into the box body (1) from the insertion port (13) and abuts against the elastic hanging assembly (4), so that the elastic hanging assembly (4) cancels the paper feeding and separating assembly ( 3) upward pulling force, at the same time, the paper feeding and separating assembly (3) automatically rotates downward under its own weight so that the paper suction wheel (36) of the paper feeding and separating assembly (3) presses against the bills in the ticket box assembly (2); a supporting plate (23) for supporting bills is movably provided in the invoice box (21) of the ticket box assembly (2), and a supporting spring (24) for driving the supporting plate (23) to move upward is provided between the bottom plate of the invoice box (21) and the supporting plate (23); when the bills are about to be issued, a front baffle (28) or a fixed plate is provided at the front end of the invoice box 21 to overlap the mounting bracket (31) to limit the paper feeding and separating assembly (3) from continuing to rotate downward.

2. The invoice box structure of the bill module according to claim 1, characterized in that: The ticket box assembly (2) comprises an invoice box (21) and a ticket return box (22), wherein the ticket return box (22) is hinged to the invoice box (21) and is arranged above the invoice box (21).

3. The invoice box structure of the bill module according to claim 2, characterized in that: A rear baffle (25) and a side baffle (26) are movably provided on the carrying plate (23), and a plurality of rollers (27) are provided on the carrying plate (23).

4. The invoice box structure of the bill module according to claim 3, characterized in that: The invoice box (21) is provided with a front baffle (28) in a movable manner. The invoice box (21) is provided with a return tension spring (29). One end of the return tension spring (29) is fixed to the top of the side wall of the invoice box (21), and the other end is connected to the front baffle (28). A slider (211) is slidably provided on the side wall of the invoice box (21). A first pull rope (212) is provided between the slider (211) and the front baffle (28). When the ticket box assembly (2) is inserted into the box body (1), the slider (211) slides backward, and the front baffle (28) is pulled downward by the first pull rope (212), and the return tension spring (29) is stretched.

5. The invoice box structure of the bill module according to any one of claims 1 to 4, characterized in that: The elastic suspension assembly (4) includes a mounting post (41), a push rod (42), a lifting spring (43) and a second pull rope (44). The mounting post (41) is fixed in the box body (1). A through hole is provided in the mounting post (41). The push rod (42) is movably inserted in the through hole. The lifting spring (43) is sleeved on the push rod (42) and the two ends of the lifting spring (43) are respectively in contact with the end cap of the push rod (42) and the end face of the mounting post (41). One end of the second pull rope (44) is connected to the push rod (42) in the through hole, and the other end is connected to the paper feeding and sheeting assembly (3). The length direction of the push rod (42) is parallel to the insertion direction of the ticket box assembly (2). When no external force is applied, the lifting spring (43) pulls the paper feeding and sheeting assembly (3) to rotate upward through the second pull rope (44).

6. The invoice box structure of the bill module according to claim 5, characterized in that: The paper feeding and separating assembly (3) comprises a mounting bracket (31), a main shaft (32), an upper separating wheel (33), a lower separating wheel (34), a driving motor (35) and the paper suction wheel (36); the main shaft (32) is rotatably arranged in the box body (1); the mounting bracket (31) is rotatably mounted on the main shaft (32); the driving motor (35) is fixed in the box body (1) and is connected to the main shaft (32) through a main transmission belt (37); the upper separating wheel (33) and the lower separating wheel (34) are rotatably arranged on the mounting bracket (31); the paper suction wheel (36) is rotatably arranged on the mounting bracket (31); the main shaft (32) is connected to the lower separating wheel (34) and the paper suction wheel (36) through a synchronous belt assembly (38); and the second pull rope (44) is connected to the mounting bracket (31).

7. Portable ticket module, characterized in that: An invoice box structure comprising a box body (1), a printing assembly (5), a reversing assembly (6), and a bill module according to any one of claims 1 to 6, wherein a bill conveying channel (11) is provided in the box body (1), a ticket outlet (12) is provided on the box body (1), one end of the bill conveying channel (11) is connected to the ticket outlet (12), and the other end is connected to the paper feeding and sheeting assembly (3).

8. The portable ticket module according to claim 7, wherein: When the ticket box assembly (2) is assembled in the box body (1), the ticket return box (22) of the ticket box assembly (2) is located below the bill conveying channel (11); a docking channel (14) is rotatably provided on the bill conveying channel (11).

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