Automatic numbering machine and complement printing system

Abstract

The invention discloses an automatic numbering machine and a complement printing system, and the automatic numbering machine comprises a core shaft which is connected to a base; the character wheel is rotationally connected to the outer portion of the mandrel, a plurality of printing numbers are arranged on the outer side of the character wheel, and a plurality of locking grooves opposite to the printing numbers in the radial direction are formed in the inner side face of the character wheel; the axial positioning lock is positioned in the mandrel and is provided with a top lock wedge capable of axially moving and an ejector pin in sliding contact with the top lock wedge; and when the top lock wedge is driven to axially move, the ejector pin radially extends out of the mandrel and is clamped in the lock groove or radially retracts and retreats from the lock groove. According to the invention, the problem of irregular printing numbers in the process of complementing and printing small banknotes by a large-piece complementing machine can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of banknote printing equipment, and in particular to an automatic numbering machine and a supplementary code printing system. Background Art

[0002] Since the task of printing supplementary codes on banknotes is generally not large, it is currently only for commemorative banknotes and other products (products require continuous numbers when leaving the factory, so non-continuous number supplementary code printing is required). Therefore, the production capacity of large-sheet supplementary code machines is obviously underutilized, and the post-printing process of banknotes is complicated (cutting, serial numbering, etc.), and there are certain safety risks. Therefore, there is an urgent need for a supplementary code printing system that can efficiently print supplementary codes on small banknotes and ensure the neatness of the printed numbers during the supplementary code printing process. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic numbering machine and a supplementary code printing system to solve the problem of uneven printing of numbers in a large-sheet supplementary code printing process of small-sheet banknotes.

[0004] The above-mentioned implementation objectives of the present invention are mainly achieved by the following technical solutions:

[0005] In one aspect, the present invention provides an automatic numbering machine, comprising:

[0006] A mandrel connected to the base;

[0007] At least one character wheel, rotatably connected to the outside of the core shaft, the outer side of the character wheel has a plurality of printed numbers, and the inner side of the character wheel is provided with a plurality of locking grooves radially opposite to the plurality of printed numbers;

[0008] An axial positioning lock is located inside the core shaft, and the axial positioning lock has an axially movable top locking wedge and a push pin in sliding contact with the top locking wedge; when the top locking wedge is driven to move axially, the push pin radially extends out of the core shaft and is engaged in the lock groove, or radially retracts and exits from the lock groove.

[0009] In a preferred embodiment of the present invention, the axial positioning lock also has a fixed seat, which is fixed in the core shaft. The ejector pin is movably connected to the fixed seat along the radial direction of the character wheel, and an elastic member that can apply a restoring force to the ejector pin is provided between the fixed seat and the ejector pin.

[0010] In a preferred embodiment of the present invention, the top locking wedge has a wedge-shaped surface, and the ejector pin has a support member in sliding contact with the wedge-shaped surface. When the top locking wedge is driven to move axially, the support member slides on the wedge-shaped surface to drive the ejector pin to radially extend out of the core shaft or radially retract.

[0011] In a preferred embodiment of the present invention, a cylinder for driving the top locking wedge to move axially is provided at one end of the core shaft, and an output shaft of the cylinder is connected to the top locking wedge.

[0012] In a preferred embodiment of the present invention, the character wheel has a driven gear, and a driving shaft driven by a motor is connected to the base, and the driving gear on the driving shaft meshes with the driven gear to drive the character wheel to rotate.

[0013] In a preferred embodiment of the present invention, a plurality of the character wheels are spaced apart on the core shaft along the axial direction of the core shaft, and some of the character wheels are connected to the motor drive through a gear mechanism.

[0014] In a preferred embodiment of the present invention, a positioning hole extending in a radial direction is provided on the outer side wall of the core shaft, and a spring and a top ball are provided in the positioning hole. Under the elastic force of the spring, the top ball can extend out of the core shaft and be clamped in the locking groove of the remaining character wheels.

[0015] In a preferred embodiment of the present invention, the locking groove is a V-shaped groove, and the locking groove includes two side surfaces and an arc bottom surface connected between the two side surfaces.

[0016] In a preferred embodiment of the present invention, the angle between the two side surfaces is not less than 71°.

[0017] In a preferred embodiment of the present invention, the automatic numbering machine also includes an external positioning lock, which is connected to the base and arranged adjacent to the character wheel, and a positioning groove is provided between adjacent printed numbers on the character wheel, and the external positioning lock has a positioning column that can move toward the direction close to the character wheel to be embedded in the positioning groove.

[0018] On the other hand, the present invention also provides a complementary code printing system, which includes a paper feeding section, a printing section, a drying section and a paper receiving section connected in sequence along the conveying direction of the paper, wherein the printing section is provided with the automatic numbering machine as described above.

[0019] Compared with the prior art, the technical solution of the present invention has the following characteristics and advantages:

[0020] 1. The automatic numbering machine described in the present invention can realize the supplementary code printing of small banknotes and notes, realize the automatic alignment of the character wheel through the axial positioning lock, and ensure the uniformity of the banknote number printing.

[0021] 2. The automatic numbering machine described in the present invention aligns the character wheel on the outside of the character wheel through an external positioning lock, thereby further ensuring the uniformity of printing of banknote numbers.

[0022] 3. The complementary code printing system of the present invention receives a list of numbers to be printed from an upper-level sorting machine, and a motor drives the character wheel to automatically dial to the correct position. A flat-press printing process prints the number of a banknote. After printing is completed, the system is triggered to automatically dial the next number, and this cycle is repeated to achieve continuous complementary code printing of non-continuous numbers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0024] Figure 1 The figure is a schematic diagram of the overall structure of the automatic numbering machine of the present invention;

[0025] Figure 2 It is a schematic cross-sectional view of the automatic numbering machine of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the character wheel of the present invention;

[0027] Figure 4 Another structural schematic diagram of the character wheel of the present invention;

[0028] Figure 5 This is a schematic diagram of the overall structure of the axial positioning lock of the present invention;

[0029] Figure 6 It is a schematic cross-sectional structure diagram of the axial positioning lock of the present invention;

[0030] Figure 7 Another structural schematic diagram of the automatic numbering machine of the present invention;

[0031] Figure 8 Another cross-sectional structural schematic diagram of the automatic numbering machine of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the ejector pin and the locking groove of the present invention;

[0033] Fig.10 Another structural schematic diagram of the ejector pin and the locking groove of the present invention;

[0034] Fig.11 This is a schematic diagram of the structure of the external positioning lock of the present invention;

[0035] Fig.12 It is a structural schematic diagram of an automatic numbering machine with an external positioning lock;

[0036] Fig.13 It is a structural schematic diagram of the complementary code printing system of the present invention.

[0037] Description of Figure Numbers:

[0038] 10. Base;

[0039] 20. Mandrel; 21. Positioning hole; 22. Spring; 23. Top ball;

[0040] 30, axial positioning lock; 31, top locking wedge; 311, wedge-shaped surface; 312, wedge-shaped strip; 313, accommodating space; 32, ejector pin; 321, support member; 322, slider; 33, fixing seat; 331, through hole; 34, elastic member;

[0041] 40, character wheel; 41, printed number; 42, lock slot; 421, side surface; 422, arc bottom surface; 43, driven gear; 44, positioning slot;

[0042] 50. Cylinder; 51. Cylinder body; 52. Output shaft; 53. Fixing member;

[0043] 60. Motor; 61. Driving shaft; 62. Driving gear;

[0044] 70. External positioning lock; 72. Positioning plate;

[0045] 80. Paper feeding section; 81. Printing section; 82. Drying section; 83. Paper receiving section; 84. Detection mechanism; 85. Waste rejection mechanism. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0047] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] Implementation method 1:

[0050] like Figures 1 to 4 As shown, the present invention provides an automatic numbering machine, which includes: a spindle 20 connected to a base 10; at least one character wheel 40 rotatably connected to the outside of the spindle 20, the outer side of the character wheel 40 has a plurality of printed numbers 41, and the inner side of the character wheel 40 is provided with a plurality of lock grooves 42 radially opposite to the plurality of printed numbers 41; an axial positioning lock 30, located in the spindle 20, the axial positioning lock 30 has an axially movable top locking wedge 31 and a top pin 32 in sliding contact with the top locking wedge 31; when the top locking wedge 31 is driven to move axially, the top pin 32 radially extends out of the spindle 20 and is engaged in the lock groove 42 or radially retracts and exits from the lock groove 42.

[0051] The automatic numbering machine of the present invention realizes the supplementary code printing of small banknotes by means of the character wheel 40 arranged on the core shaft 20. At the same time, an axial positioning lock 30 is arranged inside the core shaft 20 for positioning and locking the character wheel 40 before printing to ensure the uniformity of the numbers printed on the banknotes.

[0052] Specifically, Figure 1 and Figure 2 As shown, the base 10 has a bottom plate and two side plates, the two side plates are arranged perpendicular to the bottom plate, the bottom plate is used to connect other control components or to fix the entire automatic numbering machine, and the two side plates are used to connect the core shaft 20.

[0053] The two ends of the mandrel 20 are respectively mounted on the two side plates of the base 10 and fixed by bolts. At least one character wheel 40 is sleeved on the outer side of the mandrel 20, and the character wheel 40 is coaxially arranged with the mandrel 20. The character wheel 40 on the mandrel 20 is axially fixed and can rotate circumferentially on the mandrel 20.

[0054] like Figure 3 and Figure 4 As shown, printed numbers 41 are arranged at intervals on the circumferential outer side of the character wheel 40. The printed numbers 41 are digital molds or letter molds processed and formed on the outer surface of the character wheel 40. Alternatively, separately processed digital molds or letter molds can be installed on the outer circumferential side of the character wheel 40.

[0055] For example, in one embodiment, a total of 10 digital molds 0-9 are respectively provided on the outer circumference of a character wheel 40 for printing numbers. The number of character wheels 40 provided on the mandrel 20 and the type of printed number 41 provided on each character wheel 40 can be determined according to actual printing requirements and are not specifically limited here.

[0056] When the character wheel 40 on the core shaft 20 rotates to the designated printing position, due to factors such as driving error and manufacturing error, the printed numbers 41 on multiple character wheels 40 used to print the same row of numbers cannot be completely aligned. Therefore, an axial positioning lock 30 is provided in the core shaft 20 of the automatic numbering machine described in the present invention, and the locking and alignment of multiple character wheels 40 are achieved through the cooperation of the axial positioning lock 30 and the locking groove 42 on the character wheel 40.

[0057] like Figure 3 and Figure 4 As shown, a plurality of locking grooves 42 are provided on the inner circumferential side of each character wheel 40, and a corresponding locking groove 42 is provided for each printed number 41, and the two are arranged radially opposite to each other. Figure 2 , Figure 5 and Figure 6 As shown, an installation space for an axial positioning lock 30 is opened in the core shaft 20, and the axial positioning lock 30 is installed in the installation space; the axial positioning lock 30 has an axially movable top locking wedge 31 and a push pin 32 in sliding contact with the top locking wedge 31, and the top locking wedge 31 can move axially in the core shaft 20 under the drive of an external power; the push pin 32 is a strip-shaped piece that can move radially in the core shaft 20, and the axial movement of the top locking wedge 31 can drive the push pin 32 to move radially.

[0058] In this embodiment, the ejector pin 32 is arranged at the bottom of the spindle 20, and the installation space on the spindle 20 is a strip-shaped groove opened at the bottom of the spindle 20 and open toward the bottom. The ejector pin 32 can be radially extended from the spindle 20 or radially retracted into the spindle 20 under the drive of the ejector locking wedge 31. The ejector pin 32 is provided with a clamping strip that can cooperate with the locking groove 42 on the character wheel 40. When the ejector pin 32 is radially extended from the spindle 20, the clamping strip on the ejector pin 32 can be clamped and embedded in the locking groove 42 on the character wheel 40, thereby fine-tuning and fixing the circumferential position of the character wheel 40, thereby ensuring the neatness of the printed number 41.

[0059] According to one embodiment of the present invention, Figure 5 and Figure 6 As shown, the axial positioning lock 30 also has a fixed seat 33, which is fixed in the core shaft 20. Along the radial direction of the character wheel 40, the ejector pin 32 is movably connected to the fixed seat 33, and an elastic member 34 that can apply a restoring force to the ejector pin 32 is provided between the fixed seat 33 and the ejector pin 32.

[0060] Specifically, the fixing seat 33 is provided with a plurality of through holes 331 extending in the radial direction, and the ejector pin 32 has a plurality of sliders 322 inserted into the through holes 331. The sliders 322 and the clamping strip at the bottom of the ejector pin 32 are an integrated structure, and the sliders 322 can move radially in the through holes 331, thereby driving the clamping strip to extend or retract radially.

[0061] An elastic member 34 is provided between the ejector pin 32 and the fixing seat 33, and in this embodiment, the elastic member 34 is a spring. Since the fixing seat 33 is fixed in the mandrel 20, under the action of the spring, the ejector pin 32 can radially extend out of the mandrel 20 and then be inserted into the lock groove 42 of the character wheel 40, thereby realizing the locking and positioning of the character wheel 40. When the external driving force drives the ejector locking wedge 31 to move axially, the ejector locking wedge 31 drives the ejector pin 32 to radially retract against the elastic force of the spring, thereby causing the card strip to withdraw from the lock groove 42 of the character wheel 40, thereby releasing the locking of the character wheel 40.

[0062] In actual application of the automatic numbering machine, the number printing time is usually longer than the dialing time, that is, the time required for the character wheel 40 to be locked is longer than the time to be unlocked. Therefore, it is more reasonable to drive the ejector pin 32 to extend radially through the elastic force of the elastic member 34 to achieve locking, and at the same time drive the ejector pin 32 to retract radially through the ejector locking wedge 31 to unlock, thereby reducing the waste of resources. Of course, it can also be set to drive the ejector pin 32 to extend radially through the ejector locking wedge 31 to achieve locking, and at the same time drive the ejector pin 32 to retract radially through the elastic force of the elastic member 34 to unlock, which is not specifically limited here.

[0063] Further, such as Figure 5 and Figure 6 As shown, the top locking wedge 31 has a wedge surface 311, and the ejector pin 32 has a support member 321 that is in sliding contact with the wedge surface 311. When the top locking wedge 31 is driven to move axially, the support member 321 slides on the wedge surface 311 to drive the ejector pin 32 to radially extend out of the core shaft 20 or radially retract.

[0064] The cam 322 is secured to the cam 324 by the engagement of the support member 321 with the engagement member 322. The cam 322 is secured to the cam 324 by the engagement member 322. The cam 322 is secured to the cam 324 by the engagement member 322.

[0065] Each wedge strip 312 has a wedge surface 311, and the bottom surface of the wedge strip 312 is in sliding contact with the top surface of the fixed seat 33. Driven by an external driving force, the wedge strip 312 can slide on the top surface of the fixed seat 33; the two wedge surfaces 311 of the two wedge strips 312 are in sliding contact with the support members 321 extending from both sides of the slider 322 respectively. When the wedge strip 312 moves toward the support member 321 under the action of the external driving force, the support member 321 slides upward along the wedge surface 311, thereby driving the ejector pin 32 to retract radially.

[0066] According to one embodiment of the present invention, a cylinder 50 for driving the top locking wedge 31 to move axially is provided at one end of the core shaft 20, and the cylinder 50 includes a cylinder body 51 and an output shaft 52, the cylinder body 51 is fixed to one side of the base 10, and the output shaft 52 of the cylinder 50 is connected to the top locking wedge 31. Of course, the method of providing the top locking wedge 31 with an axial driving force is not limited to the cylinder 50 drive, and other driving methods can also be used, which is not specifically limited here.

[0067] According to one embodiment of the present invention, Figure 7 As shown, the character wheel 40 has a driven gear 43 , and a driving shaft 61 driven by a motor 60 is connected to the base 10 , and a driving gear 62 on the driving shaft 61 meshes with the driven gear 43 to drive the character wheel 40 to rotate.

[0068] In the process of complementary code printing, in order to realize automatic dialing of the character wheel 40, the information received by the control system is used to control the rotation of the motor 60 to realize automatic dialing of the character wheel 40. Compared with manual dialing, it can greatly improve the efficiency of complementary code printing.

[0069] Specifically, Figure 7As shown (in order to show the structure more clearly, the structure of the axial positioning lock 30 driven by the cylinder 50 is not shown in the figure), a driven gear 43 is connected to one end face of the character wheel 40, and the driven gear 43 can rotate around the core shaft 20 together with the character wheel 40; a driving shaft 61 is provided between the two side plates of the base 10, and a motor 60 is connected to one side of the driving shaft 61. The motor 60 is fixed on one of the side plates and is drivingly connected to the driving shaft 61. The driving shaft 61 is provided with a driving gear 62 that meshes with the driven gear 43, so that the automatic dialing of the character wheel 40 is realized by the rotation of the motor 60. Preferably, the motor 60 in the present invention selects a stepping motor to ensure the rotation control accuracy of the character wheel 40.

[0070] According to an embodiment of the present invention, a plurality of character wheels 40 are spaced apart on the core shaft 20 along the axial direction of the core shaft 20 , and some of the character wheels 40 are drivingly connected to the motor 60 via a gear mechanism.

[0071] In the actual process of supplementary code printing, especially when supplementary code printing is performed on the same batch of banknotes, some numbers or letters will basically not change or will change very little. Therefore, if all the character wheels 40 on the core shaft 20 are designed to be driven by a motor 60, the size of the automatic numbering machine will be greatly increased. Especially when there are many character wheels 40 arranged on the core shaft 20, there is also the problem of how to reasonably arrange a large number of motors 60 and driving shafts 61.

[0072] Therefore, in a preferred embodiment of the present invention, a motor 60 is provided to drive the automatic rotation of the character wheel 40 that needs to be rotated frequently; while for the character wheel 40 that rotates less frequently, there is no need to provide a motor 60 to drive it, and dialing can be done manually or in other simpler ways.

[0073] Further, such as Figure 7 and Figure 8 As shown, a positioning hole 21 extending in the radial direction is provided on the outer side wall of the core shaft 20, and a spring 22 and a top ball 23 are provided in the positioning hole 21. Under the elastic force of the spring 22, the top ball 23 can extend out of the core shaft 20 and be clamped in the locking groove 42 of the remaining character wheel 40.

[0074] For some character wheels 40 that are not driven by the motor 60 (i.e., character wheels 40 that do not need to be rotated frequently), when the motor 60 drives the character wheels 40 to rotate and dial, the cylinder 50 drives the ejector pin 32 to retract radially to release the lock on all character wheels 40. At this time, the character wheels 40 that are not driven by the motor 60 are also in an unlocked state. Therefore, a positioning structure is required to prevent them from rotating when the axial positioning lock 30 releases the lock on the character wheels 40.

[0075] Specifically, Figure 8As shown, in this embodiment, a positioning hole 21 extending in the radial direction is provided at the top of the spindle 20, and the positioning hole 21 corresponds to the locking groove 42 on the character wheel 40. A spring 22 and a top ball 23 are provided in the positioning hole 21, and the top ball 23 is located at the radial outer side of the positioning hole 21. Under the action of the elastic force of the spring 22, the top ball 23 can extend from the positioning hole 21 and be clamped in the locking groove 42 of the character wheel 40. When it is necessary to dial the character wheel 40 without the motor 60, the character wheel 40 is manually rotated, and the locking groove 42 supported by the top ball 23 squeezes the top ball 23 and the spring 22, so that the top ball 23 retracts into the positioning hole 21. At this time, the top ball 23 is pressed against the arc surface between the locking grooves 42, and it is easy to manually dial the character wheel 40 until the character wheel 40 turns to the next locking groove 42, and the top ball 23 pops out under the action of the spring 22 and pushes into the locking groove 42, thereby playing a role of positioning and locking.

[0076] According to one embodiment of the present invention, Figure 4 and Fig. 9 As shown, the locking groove 42 is a V-shaped groove, and the locking groove 42 includes two side surfaces 421 and an arc bottom surface 422 connected between the two side surfaces 421 .

[0077] An arc bottom surface 422 is designed between the two side surfaces 421 to replace the common V-shaped groove structure with only two side surfaces 421. The tip of the clamping strip on the ejector pin 32 does not contact the arc bottom surface 422, so that the ejector pin 32 and the locking groove 42 can be better matched to avoid large positioning errors.

[0078] According to one embodiment of the present invention, Fig. 9 and Fig.10 As shown, the angle between the two side surfaces 421 of the locking groove 42 is not less than 71°.

[0079] When the motor 60 drives the character wheel 40 to rotate to the right position, due to the error of the motor 60 and the error of manufacturing precision, etc., Fig.10 In order to ensure that the ejector pin 32 can effectively adjust the position of the character wheel 40 during the radial extension process, the character wheel 40 is adjusted from Fig.10 The state shown in Fig. 9 In the state shown, the angle between the two side surfaces 421 of the locking groove 42 needs to be greater than or equal to 71° to ensure that the ejector pin 32 can smoothly fine-tune the position of the ejector pin 32 .

[0080] According to one embodiment of the present invention, Figure 3 and Fig.11As shown, the automatic numbering machine further includes an external positioning lock 70 , which is connected to the base 10 and disposed adjacent to the character wheel 40 . The external positioning lock 70 has a positioning plate 72 that can move toward the direction close to the character wheel 40 to abut against the character wheel 40 .

[0081] During the complementary code printing process, the method of internally aligning the character wheel 40 only by the axial positioning lock 30 cannot completely guarantee the neatness of number printing, especially after the lock groove 42 and the ejector pin 32 are worn due to long-term use; therefore, on the basis of the original axial positioning lock 30, an external positioning lock 70 can be added to cooperate with the axial positioning lock 30 to further improve the neatness of number printing.

[0082] Specifically, Figure 1 , Figure 7 , Fig.11 and Fig.12 As shown, an external positioning lock 70 is installed on one side of the base 10. The external positioning lock 70 has a positioning plate 72. The positioning plate 72 is movably connected to the base 10 through a connecting structure. The positioning plate 72 is driven by a cylinder. The length direction of the positioning plate 72 (the extension direction of the end face abutting against the character wheel 40) is parallel to the axial direction of the core shaft 20. Therefore, under the drive of the cylinder, the positioning plate 72 can further fine-tune the position of the character wheel 40 in the process of abutting against the outer side of the character wheel 40, thereby ensuring the neat effect of the character wheel 40.

[0083] Furthermore, in a preferred embodiment of the present invention, positioning grooves 44 are provided between adjacent printed numbers 41 on the character wheel 40 , and the external positioning lock 70 has a positioning column that can move toward the direction close to the character wheel 40 to be inserted into the positioning groove 44 .

[0084] Specifically, positioning grooves 44 are provided between two adjacent printed numbers 41, and a plurality of positioning posts are arranged at intervals along the axial direction of the core shaft 20. Driven by the cylinder, the positioning posts can move toward the character wheel 40 to be embedded in the positioning grooves 44 on the character wheel 40. Since the plurality of positioning posts are located on the same straight line, the positioning posts can further fine-tune the position of the character wheel 40 during the process of the positioning posts being embedded in the positioning grooves 44, thereby ensuring the neatness of the character wheel 40.

[0085] The workflow of the automatic numbering machine described in the present invention is as follows:

[0086] First, the cylinder 50 connected to the axial positioning lock 30 is opened, and the ejector pin 32 is radially retracted to release the lock of the character wheel 40. At the same time, the motor 60 receives the signal sent by the control system, and then controls the character wheel 40 to rotate to the number position that needs to be printed. If the character wheel 40 that is not driven by the motor 60 also needs to be adjusted, the motor 60 drives the character wheel 40 to rotate, and the character wheel 40 that needs to be adjusted is manually dialed. When all the character wheels 40 are adjusted to the right position, the cylinder 50 connected to the axial positioning lock 30 is closed, and the ejector pin 32 is radially extended under the action of the elastic member 34, and the position of the character wheel 40 is adjusted and locked at the same time. After that, the cylinder connected to the external positioning lock 70 is opened, and the cylinder drives multiple positioning columns to be embedded in the positioning groove 44 on the character wheel 40, and then the position of the character wheel 40 is further fine-tuned and locked. At this time, the preparation process of the automatic numbering machine before printing the banknote has been completed. When the number is printed, the above process is repeated to print the next banknote that needs to be supplemented.

[0087] Implementation method 2:

[0088] like Fig.13 As shown, the present invention also provides a complementary code printing system. Along the conveying direction of the paper, the complementary code printing system includes a paper feeding section 80, a printing section 81, a drying section 82 and a paper receiving section 83 connected in sequence, wherein the printing section 81 is provided with an automatic numbering machine as described in the first embodiment.

[0089] When the complementary code printing system of the present invention is working, the banknotes are output from the paper feeding section 80 and enter the printing section 81. At the same time, the automatic numbering machine in the printing section 81 starts to work, receives the number information that needs complementary code printing sent by the sorting machine, and dials the character wheel 40 according to the received number information. After the dialing is completed, the character wheel 40 is inked, and then a flat-pressing printing process is carried out. The banknotes with number printing are transported to the drying section 82, dried and cured by a UV curing light source, and the dried banknotes are stored in the paper receiving section 83.

[0090] Further, such as Fig.13 As shown, in a preferred embodiment of the present invention, a detection mechanism 84 and a rejection mechanism 85 are provided between the drying section 82 and the paper receiving section 83. The dried banknotes are firstly detected by the detection mechanism 84 to check whether the position of the numbers printed on the banknotes is correct, whether the numbers are clear, etc., and the banknotes that do not meet the standards are recorded and transmitted to the rejection mechanism 85, and the banknotes that do not meet the standards are rejected by the rejection mechanism 85 and reprinted.

[0091] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic numbering machine, It is characterized in that include: A mandrel connected to the base; At least one character wheel, rotatably connected to the outside of the core shaft, the outer side of the character wheel has a plurality of printed numbers, and the inner side of the character wheel is provided with a plurality of locking grooves radially opposite to the plurality of printed numbers; An axial positioning lock is located inside the core shaft, and the axial positioning lock has an axially movable top locking wedge and a push pin in sliding contact with the top locking wedge; when the top locking wedge is driven to move axially, the push pin radially extends out of the core shaft and is engaged in the lock groove, or radially retracts and exits from the lock groove.

2. The automatic numbering machine according to claim 1, It is characterized in that The axial positioning lock also has a fixed seat, which is fixed in the core shaft. The ejector pin is movably connected to the fixed seat along the radial direction of the character wheel. An elastic member capable of applying a restoring force to the ejector pin is provided between the fixed seat and the ejector pin.

3. The automatic numbering machine according to claim 1 or 2, It is characterized in that The top locking wedge has a wedge surface, and the ejector pin has a support member in sliding contact with the wedge surface. When the top locking wedge is driven to move axially, the support member slides on the wedge surface to drive the ejector pin to radially extend out of the core shaft or radially retract.

4. The automatic numbering machine according to claim 3, It is characterized in that A cylinder for driving the top locking wedge to move axially is provided at one end of the core shaft, and an output shaft of the cylinder is connected to the top locking wedge.

5. The automatic numbering machine according to claim 1, It is characterized in that The character wheel has a driven gear, and a driving shaft driven by a motor is connected to the base, and the driving gear on the driving shaft meshes with the driven gear to drive the character wheel to rotate.

6. The automatic numbering machine according to claim 1 or 2, It is characterized in that Along the axial direction of the core shaft, a plurality of character wheels are arranged on the core shaft at intervals, and some of the character wheels are connected to the motor drive through a gear mechanism.

7. The automatic numbering machine according to claim 6, It is characterized in that A positioning hole extending in the radial direction is provided on the outer side wall of the core shaft, a spring and a top ball are provided in the positioning hole, and under the elastic force of the spring, the top ball can extend out of the core shaft and be clamped in the locking groove of the remaining character wheels.

8. The automatic numbering machine according to claim 1, It is characterized in that The locking groove is a V-shaped groove, comprising two side surfaces and an arc bottom surface connected between the two side surfaces, and the angle between the two side surfaces is not less than 71°.

9. The automatic numbering machine according to claim 1 or 2, It is characterized in that The automatic numbering machine also includes an external positioning lock, which is connected to the base and arranged adjacent to the character wheel. A positioning groove is arranged between adjacent printed numbers on the character wheel. The external positioning lock has a positioning column that can move toward the direction close to the character wheel to be embedded in the positioning groove.

10. A complementary code printing system, It is characterized in that Along the conveying direction of the paper, the complementary code printing system comprises a paper feeding section, a printing section, a drying section and a paper receiving section which are connected in sequence, wherein the printing section is provided with an automatic numbering machine as claimed in any one of claims 1 to 9.

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