WO2014040547A1

WO2014040547A1 - Stamp position detection mechanism and roll-printing stamping device

Info

Publication number: WO2014040547A1
Application number: PCT/CN2013/083397
Authority: WO
Inventors: 王�锋; 向开谊; 王耀民; 汤晓杰
Original assignee: 山东新北洋信息技术股份有限公司
Priority date: 2012-09-13
Filing date: 2013-09-12
Publication date: 2014-03-20
Also published as: CN103673873B; CN103673873A

Abstract

A stamp position detection mechanism and roll-printing stamping device, the stamp position detection mechanism being used to detect the position of a stamp (12) relative to a roller (13), and comprising: a detection foil fixedly connected with a stamp rotating shaft (11), the stamp rotating shaft (11) being fixedly connected to the stamp (12); a sensor fixed on a chassis, disposed corresponding to the detection foil, and used to output a first signal when the stamp (12) is at an initial position, output a second signal when the stamp (12) is at a first deviation position, and output a third signal when the stamp (12) is at a second deviation position; and a controller used to determine the position of the stamp according to the signal outputted by the sensor.

Description

Stamp position detecting mechanism and roll stamping device

This application claims the priority of the Chinese invention patent application filed on September 13, 2012, submitted to the China Intellectual Property Office, with the application number 201210339547.5, the name of the "seal position detection mechanism and the roll stamping device". This is for reference. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of a roll stamping device, and more particularly to a stamp position detecting mechanism and a roll stamping device. BACKGROUND OF THE INVENTION Conventional bills, such as invoices and banking documents, are usually manually stamped one by one after printing. In order to improve the work efficiency and reduce the labor intensity of the operator, a roll stamping device has been proposed, which comprises a seal, a stamp shaft, a stamp roller and an ink roller, wherein the stamp comprises a circular arc-shaped printing surface, and the printing The signboard has a text for generating a signature on the surface of the ticket; the stamp is mounted on the stamp shaft and rotates synchronously with the stamp axis; both the stamp roller and the ink roller can be tangent to the stamp face of the stamp. During work, the ticket passes between the stamp roller and the seal, and drives the stamp and the stamp roller to rotate. When the stamp face of the stamp is matched with the stamp roller, the stamp forms a signature on the ticket, and at the same time, the stamp is printed during the rotation. The sign is also pressed into contact with the ink roller to absorb the ink on the ink roller to replenish the ink. In order to ensure that the stamp can generate a complete signature at the set position of the ticket, the stamp stamping device also needs to set a stamp position detecting mechanism, so that the controller of the stamp stamping device controls the stamp to start from the initial position and return to the initial position. Stop turning afterwards. Wherein, when the seal is rotated from the initial position, a complete signature can be formed at the set position of the surface of the ticket. The Chinese patent application No. 200720107842.2 discloses an automatic roll stamping device, which comprises a groove type sensor and a turntable having a notch. When the rolling seal is rotated 360 degrees, the notch of the turntable faces the groove type sensor, thereby obtaining a signal. And feedback to the controller of the roll stamping device. The problem with the seal detecting mechanism is that when the device is accidentally powered off during the rotation of the stamp, the controller of the stamping and stamping device cannot obtain the position of the stamp after the next power-on, so that it is impossible to judge when the stamp is to be reset to the initial position. Need to rotate the stamp in the forward or reverse direction. Since there is ink on the printing surface of the seal, if there is no ticket passing through the paper feeding passage and controlling the rotation of the stamp in an arbitrary direction, the printing ink may be attached to the stamping roller when the stamp is in contact with the stamping roller, and the ticket entering the back is create pollution. In order to solve the above problem, the Chinese patent application No. 201010109345.2 discloses an automatic scroll stamping device which is connected to an encoder on a stamp shaft and has an encoder for monitoring the position of the stamp shaft in a 360-degree range. The device rotates synchronously with the seal shaft, thereby detecting the rotational position of the stamp shaft in real time. Although the encoder provided in the above automatic roll stamping device can monitor the position of the stamp shaft in the 360-degree range, the price of the encoder is usually several times that of the ordinary sensor, thereby greatly increasing the equipment cost. It is not conducive to the promotion and application of the stamping and stamping device. In view of the relatively high cost of the seal detecting mechanism in the related art, an effective solution has not been proposed yet. SUMMARY OF THE INVENTION A main object of the present invention is to provide a stamp position detecting mechanism and a stamp stamping apparatus to solve the problem of relatively high cost of the stamp detecting mechanism in the related art. In order to achieve the above object, according to an aspect of the invention, a stamp position detecting mechanism is provided. The stamp position detecting mechanism is configured to detect a position of the stamp relative to the drum, and includes: a detecting piece fixedly connected with the stamp rotating shaft, wherein the stamp rotating shaft is fixedly connected with the stamp; the sensor is fixedly disposed on the frame and corresponding to the detecting piece, For outputting a first signal when the stamp is in an initial position, outputting a second signal when the stamp is in the first offset position, and outputting a third signal when the stamp is in the second offset position, wherein the stamp is rotated from the initial position It is just enough to generate a complete signature at the set position of the ticket between the stamp and the roller. When the stamp is in the first offset position, the center of the stamp face of the stamp is on the first side of the roller, and when the seal is in the second When the position is deviated, the center of the stamp face of the stamp is located on the second side of the drum; and a controller for determining the position of the stamp relative to the drum based on the signal output by the sensor. Further, the sensor is further configured to output a fourth signal when the stamp is in the intermediate position, wherein when the stamp is in the intermediate position, the center of the stamp face of the stamp is located at a tangent point where the stamp face is tangent to the drum. Further, the detecting piece includes: a first detecting piece fixedly connected to the stamp rotating shaft; and a second detecting piece fixedly connected to the stamp rotating shaft, and the second detecting piece and the first detecting piece are spaced apart from each other along the axial direction of the stamp rotating shaft Parallel settings. The sensor includes: a first sensor fixedly disposed on the frame, wherein the first sensor is disposed corresponding to the first detecting piece; the second sensor is fixedly disposed on the frame, wherein the second sensor is corresponding to the second detecting piece The first signal includes a first signal combination, the second signal includes a second signal combination, the third signal includes a third signal combination, and the fourth signal includes a fourth signal combination, when the seal is in an initial position, the first The sensor and the second sensor output a first type of signal combination. When the stamp is in the first offset position, the first sensor and the second sensor output a second signal combination. When the stamp is in the second offset position, the first sensor and the second sensor Pass The sensor outputs a third signal combination, and when the stamp is in the intermediate position, the first sensor and the second sensor output a fourth signal combination. Step, the first signal combination is that the first sensor outputs the second detection signal, the second sensor outputs the second detection signal, the second signal combination is that the first sensor outputs the second detection signal, and the second sensor outputs the first detection signal. The three signals are combined to output a first detection signal to the first sensor, the second sensor outputs a second detection signal, the fourth type of signal is combined to output a first detection signal to the first sensor, and the second sensor outputs a first detection signal. In the intermediate position, the first probe cooperates with the first sensor and the second probe cooperates with the second sensor. When the stamp is in the initial position, the first probe is separated from the first sensor and the second probe is separated from the second sensor. When the stamp is in the first offset position, the first probe is separated from the first sensor and the second probe is mated with the second sensor. When the stamp is in the second offset position, the first probe cooperates with the first sensor and the second probe is separated from the second sensor. Further, when the stamp is in the intermediate position, the first detecting piece is separated from the first sensor, and the second detecting piece is separated from the second sensor. When the stamp is in the initial position, the first probe cooperates with the first sensor and the second probe cooperates with the second sensor. When the stamp is in the first offset position, the first probe cooperates with the first sensor and the second probe is separated from the second sensor. When the stamp is in the second offset position, the first probe is separated from the first sensor and the second probe is mated with the second sensor. Further, the detecting piece includes: a first detecting piece fixedly connected to the stamp rotating shaft; and a second detecting piece fixedly connected to the stamp rotating shaft, and the second detecting piece and the first detecting piece are spaced apart from each other along the axial direction of the stamp rotating shaft Parallel settings. The sensor includes: a first sensor fixedly disposed on the frame, wherein the first sensor is disposed corresponding to the first detecting piece; the second sensor is fixedly disposed on the frame, wherein the second sensor is corresponding to the second detecting piece The first signal includes a first signal combination, the second signal includes a second signal combination, and the third signal includes a third signal combination. When the stamp is in the initial position, the first sensor and the second sensor output a first type of signal combination, and when the stamp is in the first offset position, the first sensor and the second sensor output a second signal combination, when the seal is in the second deviation In position, the first sensor and the second sensor output a third signal combination. Further, the first detecting piece and the second detecting piece are both semi-circular and project axially along the axis of rotation of the stamp, and the first detecting piece and the second detecting piece are combined into a circular shape, and the circular detecting piece comprises the first detecting piece. a semi-circular end and a semi-circular end of the second detecting piece are formed opposite to each other at two mating positions, in one of the abutting positions, the semicircular end of the first detecting piece and the semicircular shape of the second detecting piece There is a gap between the ends, and in another of the docking positions, the semicircular end of the first probe piece coincides with the semicircular end portion of the second probe piece. Further, the first sensor and the second sensor are both saddle-shaped photoelectric sensors, and the first detecting piece protrudes into the groove of the first sensor to block the light propagation path between the light emitter and the light receiver of the first sensor The second detecting piece protrudes into the groove of the second sensor to block the light propagation path between the light emitter and the light receiver of the second sensor. In order to achieve the above object, according to another aspect of the present invention, a roll stamping device is provided. The scroll stamping device comprises: a frame comprising: a left side plate and a right side plate arranged in parallel; a stamping mechanism for stamping the surface of the ticket, the stamp mechanism comprising a stamp shaft, a stamp, and a roller, wherein the stamp shaft And both ends of the roller are supported by the left side plate and the right side plate, the seal is fixedly connected with the stamp shaft, and the stamp is disposed opposite to the drum; any stamp position detecting mechanism provided according to the present invention is used for detecting the seal relative to the drum. Position; an oil roller for replenishing ink for the stamp; and a driving mechanism coupled to the stamp shaft for driving the stamp shaft to rotate about its own axis. In the present invention, by the setting of the detecting piece, the sensor outputs different signals when the stamp is in different positions, thereby solving the problem that the cost of the stamp detecting mechanism in the related art is relatively high, thereby reducing the equipment cost, and Improve the accuracy of stamp position detection. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a roll stamping apparatus according to an embodiment of the present invention; FIG. 2 is a cross-sectional view showing a structure of a scroll stamping apparatus according to an embodiment of the present invention; FIG. 4 is a schematic structural view of a stamp stamping device in accordance with an embodiment of the present invention; FIG. 4b is a schematic view of a stamp stamping device according to an embodiment of the present invention; FIG. FIG. 4c is a schematic structural view of the seal of the stamping and stamping device in a first offset position according to an embodiment of the present invention; 4d is a schematic view showing the structure of the stamping and stamping device in the second offset position according to an embodiment of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. 1 is a schematic structural view of a roll stamping device according to an embodiment of the invention. The embodiment of the present invention provides a stamp position detecting mechanism which can be used in the roll stamping apparatus shown in FIG. 1 for detecting the position of the stamp 12 relative to the drum 13. The detecting piece, the sensor and the controller are included, wherein the detecting piece is fixedly connected with the stamp rotating shaft 11 in the rolling stamping device, and the stamp rotating shaft 11 is fixedly connected with the stamp 12; the sensor is fixedly disposed on the frame and corresponding to the detecting piece The sensor is configured to output a first signal when the stamp 12 is in the initial position, output a second signal when the stamp 12 is in the first offset position, and output a third signal when the stamp 12 is in the second offset position. And a controller for determining the position of the stamp 12 relative to the drum 13 based on the signal output by the sensor. Wherein, when the stamp 12 is rotated from the initial position, a complete signature can be generated at the set position of the ticket. When the stamp 12 is in the first offset position, the center of the stamp surface of the stamp 12 is located on the first side of the drum 13, and the seal 12 When in the second offset position, the center of the stamp face of the stamp 12 is located on the second side of the drum 13. In the stamp position detecting mechanism provided in this embodiment, by the setting of the detecting piece, when the stamp is at different positions, the sensor outputs different signals, and the controller can determine the position of the stamp according to the sensor output signal, thereby improving the position of the stamp. The stamp position detection accuracy and the cost of the stamp position detecting mechanism are reduced. Further, since the seal position detecting mechanism can detect whether the stamp is in the initial position, the first offset position or the second offset position, when the seal is required to be forward or reverse when the stamp is to be reset to the initial position, The direction of rotation is determined based on the detected stamp position. For example, assuming that the seal is detected to be in the first offset position, when the stamp needs to be reset to the initial position, the control stamp is rotated in the direction of the first side of the drum 13, and when the seal is detected to be at the second offset position, the seal is required When resetting to the initial position, the control stamp is rotated in the direction of the second side of the drum 13, thereby preventing the ink on the stamp printing surface from adhering to the drum 13 when it comes into contact with the drum 13, causing contamination of the bill entering later. . Preferably, the sensor can also output a fourth signal when the stamp 12 is in the intermediate position, wherein when the stamp 12 is in the intermediate position, the center of the stamp face of the stamp 12 is located at a tangent point of the stamp face tangential to the drum 13 Thus, the stamp position detecting mechanism can detect not only whether the stamp is in the initial position, the first offset position or the The second position is deviated, and it is also possible to detect whether the seal is in the middle position, which further improves the accuracy of the seal detection. 2 is a cross-sectional view showing the structure of a roll stamping device in accordance with an embodiment of the present invention. The structure of the rolling stamping device of the embodiment of the present invention is specifically described below with reference to FIG. 1 and FIG. 2. As shown in FIG. 1 and FIG. 2, the rolling stamping device includes a frame, a stamp mechanism 1, and a stamp position detecting mechanism 2. , the ink roller 3, and the drive mechanism 4. Wherein, the frame comprises left side plates 81 and right side plates 82 arranged in parallel, and the distance between the two is greater than or equal to the maximum width of the bill. The stamp mechanism 1 is used to stamp the surface of the bill. The stamp mechanism 1 includes a seal shaft 11, a stamp 12, and a drum 13. The two ends of the stamp shaft 11 are supported by the left side plate 81 and the right side plate 82, and are drivingly connected to the driving mechanism 4, and can be rotated about the axis thereof by the driving mechanism 4; the stamp 12 is fixedly connected with the stamp rotating shaft 11 When the seal shaft 11 is rotated about its own axis, the stamp 12 is synchronously rotated with the stamp shaft 11. The stamp 12 is semi-cylindrical, and the printing surface is disposed on a semi-cylindrical arc surface; the drum 13 is disposed opposite to the stamp 12, and the drum 13 includes a drum shaft 131 and a roller 132, wherein the axis of the drum shaft 131 and the stamp shaft 11 is parallel to the axis, and both ends are supported by the left side plate 81 and the right side plate 82, and can be freely rotated about its own axis; the roller 132 is fixedly disposed on the periphery of the drum shaft 131, and the material thereof can be elastic material such as rubber or plastic. . When the ticket passes between the drum 13 and the stamp 12 and moves to the set position, the controller of the scroll stamping device (not shown) controls the driving mechanism 4 to drive the stamp shaft 11 to drive the stamp 12 to start from the initial position. During the rotation of the stamp 12, the printing surface on the stamp 12 is tangentially matched with the roller 132 of the drum 13, and the ink is transferred to the set position on the surface of the ticket to form a complete signature. When the seal shaft 11 is rotated one revolution, the stamp 12 is reset to the initial position. The ink roller 3 is used to replenish the ink for the stamp 12. The ink roller 3 includes a mandrel 31 and an idler wheel 32. The axis of the mandrel 31 is parallel to the axis of the stamp shaft 11, and both ends thereof are supported by the left side plate 81 and the right side plate 82 so as to be freely rotatable about its own axis. The roller 32 is fixedly disposed on the periphery of the mandrel 31. The material thereof may be a water-absorbent material such as a rubber sponge or a sponge, and the roller 32 stores a certain amount of ink. When the seal shaft 11 rotates to rotate the stamp 12, the stamp face of the stamp 12 is tangentially press-fitted with the roller 32 of the ink roller 3, and rolls relative to the roller 32, thereby sucking the ink on the roller 32. The drive mechanism 4 is for driving the rotation of the stamp shaft 11. The driving mechanism 4 includes a motor 41 and a transmission gear set 42 , wherein the motor 41 is fixed on the frame, and the transmission gear set 42 includes a first gear 421 , a second gear 422 and a transition gear 423 , wherein the first gear 421 and the motor 41 The output shaft is fixedly connected, the second gear 422 is fixedly coupled to the stamp shaft 11, and the transition gear 423 is simultaneously meshed with the first gear 421 and the second gear 422. When the output shaft of the motor 41 rotates, the seal shaft can be driven by the transmission gear set 42. 11 turns. The stamp position detecting mechanism 2 is for detecting the position of the stamp 12 with respect to the drum 13. 3 is a schematic structural view of a stamp position detecting mechanism according to an embodiment of the present invention. As shown in FIG. 2 and FIG. 3, the stamp position detecting mechanism 2 includes a first detecting piece 21, a second detecting piece 22, a first sensor 23, and a second sensor 24, wherein the first detecting piece 21 and the second detecting piece 2 22 is fixedly connected with the stamp shaft 11, and the two are arranged in parallel along the axial distance of the stamp shaft 11 . When the stamp rotating shaft 11 rotates, the first detecting piece 21 and the second detecting piece 22 rotate accordingly. The first sensor 23 and the second sensor 24 are fixedly disposed on the frame, wherein the first sensor 23 corresponds to the position of the first detecting piece 21, and the first detecting piece 21 can be coupled with the first sensor 23 during the rotation of the printing shaft 11 Cooperating or separating; the second sensor 24 is corresponding to the position of the second detecting piece 22, and the second detecting piece 22 can be engaged or disengaged with the second sensor 24 during the rotation of the printing shaft 11, the first sensor 23 and the second sensor 24 can be It is a photoelectric sensor or a mechanical sensor. In this embodiment, since the first detecting piece 21 and the second detecting piece 22 and the first sensor 23 and the second sensor 24 are provided, the first sensor 23 and the second sensor are detected when the position of the stamp is detected. 24, there will be a signal output, δ Ρ, the controller of the rolling stamp device obtains a combination of signals, at this time, the first signal corresponds to the first signal combination, and the second signal corresponds to the second The signal combination, the third signal corresponds to a third signal combination, and the fourth signal corresponds to a fourth signal combination. That is, the initial position of the stamp, the first offset position, the second offset position, and the intermediate position are respectively in one-to-one correspondence with the four combinations of the first sensor and the second sensor output signal, wherein the initial position means that the stamp 12 is from the position When rotating, it is just enough to generate a complete signature at the set position of the ticket. The intermediate position means that the center of the printing surface of the stamp 12 at the position is located at the tangent point of the printing surface tangential to the drum 13, and the first offset position refers to The center of the printing surface of the position stamp 12 (i.e., the center of the circular arc surface) is located on the first side of the drum 13, and the second offset position means that the center of the printing surface of the stamp 12 at the position is located on the second side of the drum 13. Therefore, the first relative positional relationship between the first detecting piece 21, the second detecting piece 22 and the stamp 12 is: when the first detecting piece 21 is separated from the first sensor 23, and the second detecting piece 22 is separated from the second sensor 24 When the first detecting piece 21 is engaged with the first sensor 23, and the second detecting piece 22 is engaged with the second sensor 24, the stamp 12 is at the intermediate position; when the first detecting piece 21 is first When the sensor 23 is separated, and the second detecting piece 22 is engaged with the second sensor 24, the stamp 12 is located at the first offset position; when the first detecting piece 21 is engaged with the first sensor 23, and the second detecting piece 22 and the second sensor 24 are When separated, the stamp 12 is in the second offset position. The second relative positional relationship between the first detecting piece 21, the second detecting piece 22 and the stamp 12 is: when the first detecting piece 21 is engaged with the first sensor 23, and the second detecting piece 22 is engaged with the second sensor 24, The stamp 12 is in the initial position; when the first detecting piece 21 is separated from the first sensor 23, and the second detecting piece 22 is separated from the second sensor 24, the stamp 12 is in the intermediate position; when the first detecting piece 21 and the first sensor 23 are Cooperate, and second When the detecting piece 22 is separated from the second sensor 24, the stamp 12 is located at the first offset position; when the first detecting piece 21 is separated from the first sensor 23, and the second detecting piece 22 is engaged with the second sensor 24, the stamp 12 is located at the Two off position. Specifically, the first detecting piece 21 and the second detecting piece 22 are both substantially semi-circular, and the two are arranged in parallel along the axial distance of the stamp rotating shaft 11 by a set distance. Projecting axially along the stamp shaft 11, the first detecting piece 21 and the second detecting piece 22 are combined into a circular shape, and the circular shape includes a semicircular end portion of the first detecting piece 21 and a semicircle of the second detecting piece 22 The two abutting positions formed at opposite ends of the shape have a gap between the semicircular end of the first detecting piece 21 and the semicircular end of the second detecting piece 22 in one of the abutting positions, and the other In the docking position, the semicircular end of the first detecting piece 21 coincides with the semicircular end portion of the second detecting piece 22, δΡ, the first detecting piece 21 and the second detecting piece 22 are combined to form a gap on the pair of sides, and A circle in which the pair of side portions coincide. In this embodiment, the first sensor 23 and the second sensor 24 are both saddle-shaped photoelectric sensors, and the first detecting piece 21 protrudes into the groove of the first sensor 23, and can block the light emitter and the light receiving of the first sensor 23. The light propagation path between the devices, the second detecting piece 22 extends into the groove of the second sensor 24, and can block the light propagation path between the light emitter and the light receiver of the second sensor 24. In the embodiment of the present invention, by detecting the output signals of the first sensor and the second sensor, the position of the seal relative to the drum can be determined, and the driving mechanism is driven to drive the rotation of the stamp shaft in an appropriate direction according to the position of the stamp, and reset to the initial state. Position, thereby avoiding the contact of the printing surface with the roller during the resetting process or reducing the contact area of the printing surface of the stamp with the roller during the resetting process, so as to prevent the ink on the printing surface of the stamp from being transferred to the roller The effect of pollution bills. Figures 4a to 4d illustrate four position detections of the stamp position detecting mechanism. For the sake of clarity, the first detecting piece 21 is indicated by a solid line, and the second detecting piece 22 is indicated by a broken line. In the figure, the relative positional relationship between the first detecting piece 21, the second detecting piece 22 and the stamp 12 is the first relative positional relationship described above. It is set that when the first detecting piece 21 is engaged with the first sensor 23, the first sensor 23 outputs a first detecting signal, such as a low level, when the first detecting piece 21 is separated from the first sensor 23, the first sensor 23 outputs The second detecting signal, such as a high level; when the second detecting piece 22 is engaged with the second sensor 24, the second sensor 24 outputs a first detecting signal, such as a low level, when the second detecting piece 22 and the second sensor 24 When separated, the second sensor 24 outputs a second detection signal, such as a high level. 4a is a schematic view showing the structure of the stamping and stamping device in the initial position according to an embodiment of the invention. As shown in Fig. 4a, when the scroll stamping device is in the standby state, the stamp 12 is in an initial position, in which the stamp face of the stamp 12 faces away from the drum 13, and when the stamp 12 is rotated by the position, the ticket can be set. Position student A complete signature is obtained. At this time, the first detecting piece 21 is separated from the first sensor 23, and the second detecting piece 22 is separated from the second sensor 24. Therefore, the first sensor 23 and the second sensor 24 both output the second detection. signal. 4b is a schematic view showing the structure of the stamping and stamping device in the middle position according to an embodiment of the present invention. As shown in FIG. 4b, if the center of the printing surface of the stamp 12 is located at a tangent point where the printing surface is tangential to the drum 13, at this time, the first detecting piece 21 is engaged with the first sensor 23, and the second detecting piece 22 is Cooperating with the second sensor 24, therefore, both the first sensor 23 and the second sensor 24 output a first detection signal. 4c is a schematic view showing the structure of the stamping and stamping device in the first offset position according to an embodiment of the invention. As shown in FIG. 4c, if the center of the printing surface of the stamp 12 is located on the first side of the drum 13 (as shown in the figure, the printing surface of the stamp 12 is biased toward the right side of the drum 13), at this time, the first detecting piece 21 is The first sensor 23 is separated, and the second detecting piece 22 is engaged with the second sensor 24. Therefore, the first sensor 23 outputs a second detecting signal, and the second sensor ₂₄ outputs a first detecting signal. FIG. 4d is an embodiment according to an embodiment of the present invention. Schematic diagram of the stamp of the stamping and stamping device in the second offset position. As shown in FIG. 4d, if the center of the printing surface of the stamp 12 is located on the second side of the drum 13 (as shown in the figure, the printing surface of the stamp 12 is biased toward the left side of the drum 13), at this time, the first detecting piece 21 and the first When the sensor 23 is engaged, the second detecting piece 22 is separated from the second sensor 24. Therefore, the first sensor 23 outputs the first detecting signal, and the second sensor 24 outputs the second detecting signal. The working process of the roll stamping device provided by the embodiment of the present invention is described below. When the controller of the roll stamping device receives the stamping command, in order to ensure that the stamp 12 can generate a complete signature at the set position of the ticket, it is first necessary to detect whether the stamp 12 is in the initial position, if the stamp 12 is not in the initial position. Therefore, it is necessary to determine, according to the output signals of the first sensor 23 and the second sensor 24, which position the stamp 12 is located, so as to control the driving mechanism 4 to drive the stamp shaft 11 to rotate in an appropriate direction, so as to avoid the ink on the printing surface of the stamp 12 as much as possible. In the case of the contamination roller 13, the stamp 12 is rotated to the initial position. The controller of the roll stamping device detects the output signals of the first sensor 23 and the second sensor 24. If the first sensor 23 and the second sensor 24 output the first detection signal, that is, the stamp 12 is in the middle position, the stamp 12 Regardless of whether it rotates in the counterclockwise direction or in the clockwise direction, the printing surface of the stamp 12 has the same contact area with the drum 13, so that the controller of the stamping and stamping device controls the output of the motor 41 of the driving mechanism 4 according to the position of the stamp 12. The shaft rotates in a predetermined direction (clockwise or counterclockwise), and when the controller of the scroll stamping device detects that both the first sensor 23 and the second sensor 24 output the second detection signal, the control motor 41 stops rotating. When the stamp 12 is moved to the initial position. If the first sensor 23 outputs the second detection signal, the second sensor 24 outputs the first detection signal, that is, the stamp 12 is in the first offset position, and the center of the stamp surface of the stamp 12 is located on the first side of the drum 13, at this time, the printing The controller of the stamping device controls the output shaft of the motor 41 of the drive mechanism 4 to rotate according to the position of the stamp 12 to drive the stamp shaft 11 to rotate in the first set direction (such as counterclockwise in the figure), thereby avoiding the seal 12 Contacting the printing surface with the drum 13 during the resetting process or reducing the contact area of the printing surface of the stamp 12 with the drum 13 during the resetting process, when the controller of the rolling stamping device detects the first sensor 23 and the When both of the sensors 24 output the second detection signal, the control motor 41 stops rotating, and at this time, the stamp 12 is moved to the initial position. If the first sensor 23 outputs the first detection signal, the second sensor 24 outputs the second detection signal, that is, the stamp 12 is in the second offset position, and the center of the stamp surface of the stamp 12 is located on the second side of the drum 13, at this time, the printing The controller of the stamping device controls the output shaft of the motor 41 of the drive mechanism 4 to rotate according to the position of the stamp 12 to drive the stamp shaft 11 to rotate in the opposite direction of the first set direction (such as clockwise as shown in the figure). Therefore, the contact of the printing surface of the stamp 12 with the drum 13 during the resetting process or the contact area of the printing surface of the stamp 12 with the drum 13 during the resetting process of the stamp 12 is prevented, when the controller of the stamping and stamping device detects the first When both the sensor 23 and the second sensor 24 output the second detection signal, the control motor 41 stops rotating, and at this time, the stamp 12 is moved to the initial position. When the controller of the roll stamping device detects that both the first sensor 23 and the second sensor 24 output the second detection signal, that is, when the stamp 12 is in the initial position, the ticket is conveyed between the stamp 12 and the drum 13, the controller The output shaft of the control motor 41 is rotated in a predetermined direction, and the stamp shaft 11 is driven to rotate by the transmission gear set 42. The stamp 12 is rolled relative to the drum 13, and the pattern of the label surface is transferred to the surface of the bill to generate a signature, with the seal shaft 11 Continue to rotate, the seal 12 is tangentially squeezed with the ink roller 3, thereby sucking the ink on the ink roller 3, and when the controller of the stamping and stamping device detects that the stamp 12 is rotated to the initial position, the control of the stamping and stamping device The motor control motor 41 stops rotating. The initial position, the intermediate position, the first offset position, and the second offset position of the stamp are respectively in one-to-one correspondence with the four combined values of the first sensor and the second sensor output signal, thereby detecting the outputs of the first sensor and the second sensor Signal, you can determine the position of the seal, and control the drive mechanism to drive the rotation of the stamp shaft in the appropriate direction according to the position of the stamp, so as to avoid the contact of the stamp surface with the roller during the reset process or reduce the seal during the reset process. The contact area between the printing surface and the roller reaches the effect of preventing the ink on the printing surface of the stamp from being transferred to the drum and contaminating the bill. Compared with the prior art, the seal detecting mechanism provided by the embodiment of the invention can accurately detect the position of the stamp by using a common sensor, thereby greatly reducing the equipment cost. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A stamp position detecting mechanism for detecting a position of a stamp (12) relative to a drum (13), the feature comprising:

a detecting piece fixedly connected to the stamp shaft (11), wherein the stamp shaft (11) is fixedly connected to the stamp (12);

a sensor, fixedly disposed on the frame, corresponding to the detecting piece, configured to output a first signal when the stamp (12) is in an initial position, when the stamp (12) is in a first offset position, Outputting a second signal, and outputting a third signal when the stamp (12) is in the second offset position, wherein the stamp (12) is rotated by the initial position to be located at the stamp (12) The set position of the ticket with the drum (13) generates a complete signature, and when the stamp (12) is in the first offset position, the center of the stamp face of the stamp (12) is located at the a first side of the drum (13), the center of the stamp face of the stamp (12) being located on a second side of the drum (13) when the stamp (12) is in the second offset position;

a controller for determining a position of the stamp (12) relative to the drum (13) based on a signal output by the sensor.

2. The stamp position detecting mechanism according to claim 1, wherein the sensor is further configured to output a fourth signal when the stamp (12) is at an intermediate position, wherein when the stamp is in the In the intermediate position, the center of the stamp face of the stamp (12) is located at a tangent point where the stamp face is tangent to the drum (13).

3. The stamp position detecting mechanism according to claim 2, wherein the detecting piece comprises:

a first detecting piece (21) fixedly connected to the stamp rotating shaft (11);

a second detecting piece (22) fixedly coupled to the stamp rotating shaft (11), and the second detecting piece (22) and the first detecting piece (21) are axially along the stamp rotating shaft (11) The interval setting distance is set in parallel, and the sensor includes:

a first sensor (23) is fixedly disposed on the frame, wherein the first sensor (23) is disposed corresponding to the first detecting piece (21); a second sensor (24) is fixedly disposed on the frame, wherein the second sensor (24) is disposed corresponding to the second detecting piece (22),

The first signal includes a first signal combination, the second signal includes a second signal combination, the third signal includes a third signal combination, and the fourth signal includes a fourth signal combination. The first sensor (23) and the second sensor (24) output the first type of signal combination when the stamp (12) is in the initial position,

The first sensor (23) and the second sensor (24) output the second signal combination when the stamp (12) is in the first offset position,

The first sensor (23) and the second sensor (24) output the third signal combination when the stamp (12) is in the second offset position,

The first sensor (23) and the second sensor (24) output the fourth signal combination when the stamp (12) is in the intermediate position.

4. The stamp position detecting mechanism according to claim 3, wherein

The first type of signal combination is: the first sensor (23) outputs a second detection signal, and the second sensor (24) outputs a second detection signal,

The second signal combination is: the first sensor (23) outputs a second detection signal, and the second sensor (24) outputs a first detection signal,

The third signal combination is: the first sensor (23) outputs a first detection signal, and the second sensor (24) outputs a second detection signal,

The fourth signal combination is: the first sensor (23) outputs a first detection signal, and the second sensor (24) outputs a first detection signal.

5. The stamp position detecting mechanism according to claim 3, wherein

When the stamp (12) is in the intermediate position, the first detecting piece (21) cooperates with the first sensor (23), and the second detecting piece (22) and the second sensor (24) cooperate, when the stamp (12) is in the initial position, the first detecting piece (21) is separated from the first sensor (23), and the second detecting piece (22) is The second sensor (24) is separated, and when the stamp (12) is in the first offset position, the first detecting piece (21) is separated from the first sensor (23), and the first The second detecting piece (22) cooperates with the second sensor (24), When the stamp (12) is in the second offset position, the first detecting piece (21) cooperates with the first sensor (23), and the second detecting piece (22) and the first The two sensors (24) are separated.

6. The stamp position detecting mechanism according to claim 3, wherein

When the stamp (12) is in the intermediate position, the first detecting piece (21) is separated from the first sensor (23), and the second detecting piece (22) and the second sensor are (24) separating, when the stamp (12) is in the initial position, the first detecting piece (21) is engaged with the first sensor (23), and the second detecting piece (22) is The second sensor (24) cooperates, when the stamp (12) is in the first offset position, the first detecting piece (21) cooperates with the first sensor (23), and the first The second detecting piece (22) is separated from the second sensor (24),

When the stamp (12) is in the second offset position, the first detecting piece (21) is separated from the first sensor (23), and the second detecting piece (22) is opposite to the first Two sensors (24) fit.

7. The stamp position detecting mechanism according to claim 1, wherein:

The probe includes:

The first sensor (23) is fixedly disposed on the frame, wherein the first sensor (23) is disposed corresponding to the first detecting piece (21);

a second sensor (24) is fixedly disposed on the frame, wherein the second sensor (24) is disposed corresponding to the second detecting piece (22),

The first signal includes a first type of signal combination, the second signal includes a second type of signal combination, and the third signal includes a third type of signal combination.

The first sensor (23) and the second sensor ( ₂₄ ) output the first type of signal combination when the stamp (12) is in the initial position, The first sensor (23) and the second sensor (24) output the second combination of signals when the stamp (12) is in the first offset position,

The first sensor (23) and the second sensor (24) output the third signal combination when the stamp (12) is in the second offset position. A stamp position detecting mechanism according to any one of claims 3 to 3, characterized in that

The first detecting piece (21) and the second detecting piece (22) are each semi-circular, projecting axially along the stamp rotating shaft (11), the first detecting piece (21) and the first The two detecting pieces (22) are combined into a circle including a semicircular end portion of the first detecting piece (21) and a semicircular end portion of the second detecting piece (22) Two docking positions formed opposite each other, in one of the docking positions, a gap between the semicircular end of the first detecting piece (21) and the semicircular end of the second detecting piece (22) In another docking position, the semicircular end of the first detecting piece (21) coincides with the semicircular end portion of the second detecting piece (22). A stamp position detecting mechanism according to any one of claims 3 to 3, characterized in that

The first sensor (23) and the second sensor (24) are both saddle-shaped photoelectric sensors, and the first detecting piece (21) protrudes into the groove of the first sensor (23), Blocking a light propagation path between the light emitter of the first sensor (23) and the light receiver, the second detector piece (22) extending into the recess of the second sensor (24), capable of blocking A light propagation path between the light emitter and the light receiver of the second sensor (24). A roll stamping device is characterized in that it comprises:

The frame includes a left side plate (81) and a right side plate (82) disposed in parallel;

a stamping mechanism (1) for stamping a surface of a ticket, the stamp mechanism (1) comprising a stamp rotating shaft (11), a stamp (12), and a drum (13), wherein the stamp rotating shaft (11) and the Both ends of the drum (13) are supported by the left side plate (81) and the right side plate (82), and the seal (12) is fixedly connected with the seal shaft (11), the seal (12) Opposite to the drum (13);

A stamp position detecting mechanism (2) according to any one of claims 1 to 9, for detecting a position of said stamp (12) with respect to said drum (13);

An ink roller (3) for replenishing ink for the stamp (12);

The driving mechanism (4) is drivingly coupled to the stamp shaft (11) for driving the stamp shaft (11) to rotate about its own axis.