A flipping device, a printer, and a flipping positioning and recognition method

Abstract

The present invention provides a flipping device, which relates to the technical field of printing devices and includes: a housing, a carrying platform configured to be rotatable relative to the housing within the housing, and a driving mechanism for driving the carrying platform to flip; at least one detection unit is disposed on each of the two sides of the housing, and a triggering unit for forming a trigger with the detection unit is disposed on each of the opposite sides of the carrying platform and the housing; a plurality of preset working positions are formed during the rotation of the carrying platform, and at each preset working position, the triggering unit has different triggering relationships with at least two detection units; and at least in one preset working position, at least one detection unit on each of the two sides of the housing is simultaneously triggered by the triggering unit, so as to locate and identify the position of the carrying platform according to the triggering conditions of the plurality of detection units, achieve precise positioning, and be able to perform position identification at different positions after multi-angle flipping. The present application further provides a printer and a flipping positioning and identification method.

Description

Technical Field

[0001] The present invention relates to the technical field of printing devices, and more particularly, to a flipping device, a printer, and a flipping positioning and identification method. Background Art

[0002] As the name implies, a card printer is a device used for printing ID cards. In daily work and life, with the popular application of smart cards, various ID cards or business cards with high-quality photos printed on them are the products of it. The key to card printing lies in the output quality. Although the photo printing quality of inkjet printers is quite good nowadays, card printers used for card printing often adopt the thermal sublimation principle.

[0003] Most ID cards need to be printed on both sides, that is, after printing on the front side, the card is flipped to the back side and then printed. Existing card printers can only print one side at a time, so the card needs to be manually flipped and put into the printer for printing again. For printers equipped with a flipping module, after printing the front side, the printer will automatically flip the card for back-side printing. Double-sided printing can be achieved with one operation, greatly improving the card-making efficiency.

[0004] Among them, the component for realizing automatic flipping is called a flipping module, which is used for flipping and feeding the card. At present, the position of the flipping module generally uses a relatively single detection method to locate the flipping position, so as to obtain the situation of the card's position and judge whether the card has completed flipping. This method has inaccurate positioning and single function, and cannot meet the position determination after multi-angle flipping of the existing flipping module. Moreover, the positioning method and flipping method of the existing flipping module have many limitations, relying too much on manufacturing precision and being easily affected by installation deviation, resulting in the inability to accurately identify whether the flipping module has run in place, and prone to problems such as failures, which affect the printing efficiency. Summary of the Invention

[0005] The present invention discloses a flipping device, a printer, and a flipping positioning and identification method, aiming to improve problems such as the single function and inaccurate positioning of the existing flipping module.

[0006] The present invention adopts the following solutions:

[0007] A flipping device, comprising: a housing, a carrying platform disposed in the housing in a manner that can rotate relative to the housing, and a driving mechanism for driving the carrying platform to flip; at least one detection unit is disposed on each of the two sides of the housing, and trigger units for forming a trigger with the detection unit are disposed on the opposite sides of the carrying platform and the housing on both sides; wherein, during the rotation process of the carrying platform, a plurality of preset positions are formed, and at each preset position, the trigger unit has different trigger relationships with at least two of the detection units; and at least at one preset position, at least one detection unit on each of the two sides of the housing is simultaneously triggered by the trigger unit.

[0008] As a further improvement, the detection unit includes a first detection unit and a second detection unit; the preset positions include a first position, a second position, and a third position; wherein, when the carrying platform is in the first position, both the first detection unit and the second detection unit are triggered by the corresponding trigger unit on the carrying platform; when the carrying platform is in the second position, only the first detection unit is triggered by the corresponding trigger unit on the carrying platform; when the carrying platform is in the third position, only the second detection unit is triggered by the corresponding trigger unit on the carrying platform.

[0009] As a further improvement, the two detection units are symmetrically disposed on the left and right sides of the housing, and the carrying platform has positioning disks symmetrically disposed on its left and right sides, and a plurality of the trigger units are disposed on the positioning disks to rotate with the positioning disks, so as to form a trigger relationship with the corresponding detection unit when the positioning disks move to the preset positions.

[0010] As a further improvement, the positioning disks are in a semi-circular disk shape, the two positioning disks can rotate synchronously, and the trigger units are disposed along their respective circumferences and facing the detection units; a first trigger unit and a second trigger unit are disposed along the diameter direction of one of the semi-circular disks, and a third trigger unit disposed opposite to the first trigger unit and a fourth trigger unit having an angle α with the third trigger unit and not disposed opposite to the second trigger unit are disposed on the other positioning disk.

[0011] As a further improvement, the trigger units for triggering the detection units at different positions are different, and during the rotation process of the carrying platform, there is no trigger relationship between the positioning disks and the detection units.

[0012] As a further improvement, the two positioning disks are driven by the carrier platform to rotate synchronously, and the two positioning disks are provided with the trigger units along their circumferences and facing the detection unit; one of the positioning disks is provided with a first trigger unit and a second trigger unit along the diameter direction of the semi-disk, and the other positioning disk is provided with a third trigger unit disposed opposite to the first trigger unit and a fourth trigger unit having an angle α with the third trigger unit and not disposed opposite to the second trigger unit.

[0013] As a further improvement, the driving mechanism drives the carrier platform to rotate 180° along the first working station to the second working station; the driving mechanism drives the carrier platform to rotate an angle α along the first working station to the third working station.

[0014] As a further improvement, the detection unit is an optoelectronic pair, and includes an optoelectronic emitter and an optoelectronic receiver disposed corresponding to the optoelectronic emitter; the trigger unit is a shielding plate, and the rotation of the carrier platform drives the shielding plate to move between the optoelectronic emitter and the optoelectronic emitter, and correspondingly shields to trigger the optoelectronic pair.

[0015] The present application further provides a printer, including the flipping device described above.

[0016] The present application further provides a flipping and positioning recognition method, applied to a printer, including the following steps:

[0017] According to different triggering relationships between each detection unit and the trigger unit, define whether the detection unit is triggered, and correspondingly generate preset working station information of the carrier platform.

[0018] Receive a detection signal group sent by at least two detection units;

[0019] According to the corresponding relationship between the detection signal group and the working station, judge the current working station of the printer.

[0020] As a further improvement, it further includes: after detecting that the detection unit is triggered by the trigger unit, control the driving mechanism to rotate a predetermined number of steps, and after rotation, judge the trigger state of the detection unit at the current working station again.

[0021] As a further improvement, it further includes: while driving the carrier platform to rotate forward by the driving mechanism, correspondingly drive the rubber roller for conveying the medium to be printed to rotate reversely; wherein, the rotation frequency of the carrier platform is consistent with that of the paper feeding roller, so as to stably place the medium to be printed relatively statically on the carrier platform.

[0022] By adopting the above technical solutions, the present invention can achieve the following technical effects:

[0023] 1. The flipping device, printer, and flipping positioning and recognition method of the present application are provided with at least two detection units on the outer shell, and a plurality of trigger units are correspondingly provided on the carrying platform. The trigger units can move along with the carrying platform. After the carrying platform rotates to different preset working positions, the trigger units and the at least two detection units have different triggering relationships, defining the position information of the carrying platform corresponding to the triggering relationships of different detection units. Thus, according to the triggering situations of the multiple detection units, the position where the carrying platform is located can be positioned and recognized, achieving precise positioning, ensuring that the flipping module operates in place at different working positions, and enabling positioning and recognition at different positions after multi-angle flipping.

[0024] 2. Under at least one of the preset working positions, at least one detection unit on each side of the detection units is triggered simultaneously, such that when multiple detection units are triggered simultaneously, they can correspond to a preset working position, having a combined triggering relationship of being triggered simultaneously. In this way, under the same number of preset working positions, the present application requires fewer detection units, thus greatly reducing the configuration quantity of the detection units. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0026] Figure 1 is a schematic structural diagram of the flipping device according to the first embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of the flipping device after hiding the outer shell, driving mechanism, and detection units. Among them, for the convenience of display, the left and right figures are schematic structural diagrams of the flipping device after hiding the outer shell from different perspectives;

[0028] Figure 3 is Figure 1 the schematic structural diagram of the flipping device in

[0029] Figure 4 is Figure 3 the schematic structural diagram of the carrying platform in

[0030] Figure 5 is Figure 3 the schematic structural diagram of the carrying platform in

[0031] Figure 6 is a flowchart of the flipping positioning and recognition method according to the third embodiment of the present invention;

[0032] Figure 7 It is a step flowchart of the flipping method of the flipping positioning recognition method of the preferred embodiment of the present invention.

[0033] Icons: 1 - housing; 11 - left housing; 12 - right housing; 13 - accommodation chamber; 2 - carrier; 21 - positioning disc; 3 - detection unit; 31 - first detection unit; 32 - second detection unit; 4 - triggering unit; 41 - first triggering unit; 42 - second triggering unit; 43 - third triggering unit; 44 - fourth triggering unit; 5 - paper feed roller; 6 - driving mechanism; 7 - driving unit. Specific embodiments

[0034] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more unless otherwise specifically defined.

[0037] In the present invention, unless otherwise clearly specified or limited, terms such as "install", "connect", "link", "fix", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0039] Embodiment

[0040] Combined Figures 1 to 5 , the first embodiment of the present invention provides a flipping device, including: a housing 1, a carrier 2 disposed in the housing 1 in a manner that can rotate relative to the housing 1, and a driving mechanism 6 for driving the carrier 2 to flip. Among them, at least one detection unit 3 is disposed on each side of the housing 1, trigger units 4 for forming a trigger with the detection unit 3 are disposed on the opposite sides of the two sides of the carrier 2 and the housing 1, and the rotation of the carrier 2 can drive the trigger unit 4 to move. The carrier 2 forms a plurality of preset stations during the rotation process, and at each preset station, the trigger unit 4 has different trigger relationships with at least two detection units 3. And at least in one preset station, at least one detection unit 3 on each side of the housing 1 is simultaneously triggered by the trigger unit 4.

[0041] In this embodiment, based on the different triggering relationships between the detection units 3 corresponding to different preset workstations of the carrier 2, the position information of the carrier 2 can be accurately obtained. The triggering unit 4 can move along with the carrier 2. After the carrier 2 rotates to different preset workstations, the triggering unit 4 has different triggering relationships with at least two detection units 3, defining the position information of the carrier 2 corresponding to the triggering relationships of different detection units 3. Thus, according to the triggering situations of multiple detection units 3, the position where the carrier 2 is located can be located and identified, achieving precise positioning, ensuring that the flipping module operates in place at different workstations, and enabling position identification at different positions after multi-angle flipping. At least in one of the preset workstations, at least one detection unit on each side of the detection units is triggered simultaneously, so that when multiple detection units are triggered simultaneously, they can correspond to a preset workstation, having a combined triggering relationship of being triggered simultaneously, so that with the same number of preset workstations, fewer detection units are required in this application, thus greatly reducing the configuration quantity of the detection units.

[0042] In this embodiment, the housing 1 is formed by the left housing 11 and the right housing 12 being boxed against each other to form an entire housing body, and inside the housing 1, there is an accommodation chamber 13 capable of accommodating and configuring the carrier 2 and allowing the carrier 2 to rotate inside, so that the carrier 2 can rotate relative to the housing 1, thereby enabling the card conveyed onto the carrier 2 to rotate along with the carrier 2 to complete card turning, and then being conveyed to an external printing device for back printing.

[0043] In this embodiment, at least two detection units 3 are arranged in the accommodation chamber 13. For example, at least two detection units 3 include a first detection unit 31 and a second detection unit 32. Among them, the first detection unit 31 can be arranged on the left housing 11, and the second detection unit 32 can be arranged on the right housing 12. When the carrier 2 rotates, it can drive the triggering unit 4 to move, and when the carrier 2 is in a preset workstation, the triggering unit 4 will form a corresponding triggering relationship with the first detection unit 31 and / or the second detection unit 32.

[0044] Among them, particularly in this embodiment, the preset workstations include a first workstation, a second workstation, and a third workstation. When the carrier table 2 is at the first workstation, both the first detection unit 31 and the second detection unit 32 are triggered by the corresponding trigger unit 4 on the carrier table 2. At this time, the first detection unit 31 and the second detection unit 32 are triggered simultaneously by the trigger unit 4. When the carrier table 2 is at the second workstation, the first detection unit 31 is triggered by the corresponding trigger unit 4 on the carrier table 2, and at this time, the second detection unit 32 is not triggered. When the carrier table 2 is at the third workstation, the second detection unit 32 is triggered by the corresponding trigger unit 4 on the carrier table 2, and at this time, the first detection unit 31 is not triggered. It is defined that the first workstation is the initial position of the carrier table 2, corresponding to receiving the card to be flipped from the transmission channel of the printing device. The second workstation is the position after the carrier table 2 is flipped, corresponding to sending the card back to the transmission channel of the printing device for reverse printing after flipping the card by 180°. The third workstation is the position where the carrier table 2 is rotated by a certain angle, and this position is used to convey the card in a direction different from the transmission channel to different process positions such as laminating the card or reading and writing information on the card. By whether the first trigger unit 41 and the second trigger unit 42 are both triggered, or partially triggered, or not triggered at all, the user can directly obtain the workstation information of the carrier table 2, locate the position of the carrier table 2, achieve precise positioning, and avoid the situation where the carrier table 2 is not flipped in place.

[0045] Furthermore, the trigger units 4 for triggering the detection unit 3 at different workstations are different. Among them, the trigger unit 4 for triggering the first detection unit 31 and the trigger unit 4 for triggering the second detection unit 32 are independent of each other and trigger their respective corresponding detection units 3. And the trigger units 4 for triggering the same detection unit 3 at different workstations are different trigger units 4 for triggering the detection unit 3.

[0046] In an embodiment of the present invention, the detection unit 3 may be, for example, an optoelectronic pair, which generally includes an optoelectronic emitter and an optoelectronic receiver corresponding to the optoelectronic emitter. When the trigger unit 4 and the detection unit 3 form a corresponding trigger relationship, the optoelectronic emitter and the optoelectronic receiver are blocked, correspondingly causing the detection unit 3 to be triggered. Among them, the trigger unit 3 is preferably a baffle plate, and the rotation of the carrier table 2 drives the baffle plate to move between the optoelectronic emitter and the optoelectronic receiver. When the carrier table 2 rotates to a preset workstation, the carrier table 2 is relatively stationary, so that the corresponding baffle plate is placed between the emitter and the receiver of the optoelectronic pair, thereby blocking the optoelectronic pair and correspondingly triggering the optoelectronic pair.

[0047] Specifically, in this embodiment, the two detection units 3 are symmetrically arranged on the left and right sides of the outer shell 1, so that the two detection units 3 are arranged opposite to each other at the same end of the outer shell 1. The carrier 2 has positioning disks 21 symmetrically placed on its left and right sides, and a plurality of trigger units 4 are arranged on the positioning disks 21 to rotate with the positioning disks 21, so that when the positioning disks 21 move to a preset working position, a corresponding trigger relationship is formed with the corresponding detection unit 3. Each trigger unit 4 corresponds to one of the preset working positions. Under the drive of the positioning disks 21, the trigger units 4 correspondingly cause the first detection unit 31 and the second detection unit 32 to be triggered simultaneously or only one of them to be triggered.

[0048] In this embodiment, during the rotation of the carrier 2, there is no trigger relationship between the positioning disk 21 and the detection unit 3. When the carrier 2 rotates to one of the preset working positions and stops rotating, at this time, the corresponding trigger unit 4 on the positioning disk 21 can generate a trigger relationship with the detection unit 3. Preferably, the positioning disk 21 is in a semi-circular disk shape. The two positioning disks 21 can rotate synchronously, and trigger units 4 are provided on the two positioning disks 21 along their circumferences and facing the detection unit 3. The number of trigger units 4 on at least one side of the carrier 2 is greater than one. One of the positioning disks 21 is provided with a first trigger unit 41 and a second trigger unit 42 along the diameter direction of the semi-circular disk, and the other positioning disk 21 is provided with a third trigger unit 43 arranged opposite to the first trigger unit 41 and a fourth trigger unit 44 having an angle α with the third trigger unit 43 and not arranged opposite to the second trigger unit 42.

[0049] In this embodiment, when the first trigger unit 41 triggers the first detection unit 31 and the third trigger unit 43 triggers the second detection unit 32, both the first detection unit 31 and the second detection unit 32 are triggered, corresponding to the conclusion that the carrier 2 is in the first working position. When the second trigger unit 42 triggers the first detection unit 31 and neither the third trigger unit 43 nor the fourth trigger unit 44 triggers the second detection unit 32, the first detection unit 31 is triggered and the second detection unit 32 is not triggered, corresponding to the conclusion that the carrier 2 is in the second working position. When neither the first trigger unit 41 nor the second unit triggers the first detection unit 31 and the fourth trigger unit 44 triggers the second detection unit 32, the first detection unit 31 is not triggered and the second trigger unit 42 is triggered, corresponding to the conclusion that the carrier 2 is in the first working position. Through different trigger relationships between the detection units 3 and the trigger units 4, the triggering or non-triggering of the detection units 3 is defined, and the corresponding preset working position information of the carrier 2 is generated, so as to accurately position.

[0050] The working process of the first embodiment of the present invention is described in detail below:

[0051] When the card is flipped for reverse printing, the card is transported via the external printing channel to the carrier 2 of the flipping device. At this point, the carrier 2 is in the first station, with the first trigger unit 41 triggering the first detection unit 31 and the third trigger unit 43 triggering the second detection unit (both detection units are triggered simultaneously). The drive mechanism 6 rotates the carrier 2 180° from the first station to the second station, rotating the carrier 2 from its initial position to the flipping position. At this point, only the second trigger unit 42 triggers the first detection unit 31, flipping the card 180° and returning it to the printing device's transport channel for reverse printing. When the card is flipped to the laminating or card reading / writing process, the drive mechanism 6 rotates the carrier 2 from the first station by an angle α to the third station, rotating the carrier 2 from its initial position to an angle α relative to the initial position. At this point, only the fourth trigger unit 44 triggers the second detection unit 32, rotating the card in a direction different from the transport channel, allowing the card to be transported to a different process position, such as laminating or reading / writing card information.

[0052] The range of angle α is 0° < α < 180°, so that the third station differs from the first station by an angle α, thereby increasing the different rotational positions of the carrier 2. The angle between the fourth trigger unit 44 and the third trigger unit 43 is α, and the fourth trigger unit 44 does not align with the first trigger unit 41 or the second trigger unit 42, thereby ensuring that the fourth trigger unit 44 can independently trigger the corresponding second detection unit 32, forming a corresponding third station. Angle α is preferably 90°, so that the third station is located in a vertical direction and outputs the card vertically to the lamination or information reading and writing process position.

[0053] Combine Figure 1 A second embodiment of the present invention provides a printer including the aforementioned flipping device. The printer's printing device prints on a card and transfers it along a printing path to the flipping device. The flipping device's carrier 2 receives the card and rotates to flip the card. The flipping device then flips the card 180° and returns it to the printing device's transfer path for reverse printing. Alternatively, the card is rotated by an angle α in a direction away from the transfer path and then transferred to a different process location for lamination, card reading, or information writing.

[0054] Combine Figures 6 to 7 A third embodiment of the present invention provides a flip positioning recognition method, which is applied to a printer and includes the following steps:

[0055] S1: receiving a detection signal group sent by at least two detection units;

[0056] S2: Determine the workstation at which the flipping device is currently working based on the correspondence between the detection signal group and the workstation.

[0057] Among them, a detection signal indicating whether it is triggered sent by the detection unit is received, and thus, according to the corresponding relationship between different detection signal groups and workstations, the workstation where the flipping device is located is obtained. Specifically, according to different triggering relationships between each detection unit 3 and the triggering unit 4, it is defined that the triggering or non-triggering of the detection unit 3 correspondingly generates preset workstation information of the corresponding carrier table 2. In this embodiment, the two detection units 3 include a first detection unit 31 and a second detection unit 32. One or both of the first detection unit 31 and the second detection unit 32 are triggered by corresponding multiple triggering units 4, and thus, according to different triggering relationships of each detection unit 3, preset workstation information is defined: the workstation includes a first workstation where both detection units 3 are triggered, a second workstation where the first detection unit 31 is triggered, and a third workstation where the second detection unit 32 is triggered. When a detection signal group in which both the first detection unit 31 and the second detection unit 32 are triggered is received, the carrier table 2 is at the first workstation position at this time. When a detection signal group in which the first detection unit 31 is triggered and the second detection unit 32 is not triggered is received, the carrier table 2 is at the second workstation position at this time. When a detection signal group in which the first detection unit 31 is not triggered and the second detection unit 32 is triggered is received, the carrier table 2 is at the third workstation position at this time. According to the corresponding relationship between each detection signal group and different workstations, the position of the carrier table 2 is accurately obtained.

[0058] Furthermore, the flipping positioning and recognition method further includes:

[0059] After detecting that the detection unit is triggered by the triggering unit, control the driving mechanism to rotate a predetermined number of steps, and after rotation, judge the triggering state of the detection unit at the current workstation again.

[0060] Among them, when the user reads the triggering situation of each detection unit 3, there may be a problem that the triggered detection unit 3 cannot be effectively read by the user due to problems such as accuracy and external jitter interference. In particular, when both detection units 3 are in a triggered state, if the triggering situations of the two detection units 3 cannot be effectively read, it is easy to misjudge the preset workstation, resulting in an incorrect positioning of the position of the carrier table 2.

[0061] In this embodiment, after detecting that the detection unit is triggered, the driving mechanism is controlled to rotate a predetermined number of steps (such as two steps) to the previous working station, and then the triggering situation of the detection unit at this working station is judged again to avoid misjudgment for the first time. Through a highly fault-tolerant positioning method, the detection unit 3 that is read as the non-triggered state is repeatedly read after multiple micro-rotations to overcome the problem of inaccurate reading of the detection unit 3 when it is in the triggered state caused by various factors. It should be noted that this positioning method is an inspection step in the flip positioning recognition method, and this detection step can be selectively operated according to actual needs, which ensures that the problem of inaccurate positioning recognition caused by the failure to read the triggering situation can be effectively avoided, and it will not take too much working time of the flipping device.

[0062] Further, the flip positioning recognition method further includes: while driving the carrier table to rotate forward by the driving mechanism 6, correspondingly driving the paper feed roller 5 for conveying the to-be-printed medium to rotate in the reverse direction, and the rotation frequencies of the carrier table 2 and the paper feed roller 5 are consistent, so as to stably place the to-be-printed medium relatively statically on the carrier table.

[0063] Specifically, the rotation of the carrier table 2 is linked to the paper feed transmission of the paper feed roller 5 arranged on the carrier table 2, and the to-be-printed card is placed in the paper feed channel formed by the carrier table 2 and the paper feed roller 5. The card to be flipped conveyed from the transmission channel of the printing device moves into this paper feed channel, and then is placed at the end face position of the carrier table 2 under the pressing of the paper feed roller 5. At this time, the carrier table 2 rotates forward, correspondingly rotating the card to the preset working station. At this time, the paper feed roller 5 rotates in the opposite direction relatively, and the rotation frequencies of the carrier table 2 and the paper feed roller 5 are consistent, so as to stably place the card relatively statically on the carrier table 2. It should be noted that the driving mechanism 6 for driving the carrier table 2 to rotate and the driving unit 7 for driving the paper feed roller 5 to rotate have a linkage relationship. When the driving mechanism 6 rotates to drive the carrier table 2 to rotate at a rotation frequency to switch the working station, the corresponding driving unit 7 operates to drive the paper feed roller 5 to rotate at the same rotation frequency. The driving mechanism 6 and the driving unit 7 are driven relatively independently so that the rotation frequency of the carrier table 2 is consistent with the rotation frequency of the paper feed roller 5, so that during the rotation of the carrier table 2, the paper feed roller 5 rotates in the opposite direction at the same rotation frequency, ensuring that the inertial driving of the card by the rotation of the carrier table 2 is offset by the reverse rotation of the paper feed roller 5 on the card, and avoiding the relative sliding and displacement of the card due to the inertial force when the carrier table 2 flips.

[0064] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention.

Claims

1. A turning device, comprising: A housing, a supporting platform arranged in the housing in a manner rotatable relative to the housing, and a driving mechanism for driving the supporting platform to flip; characterized in that, At least one detection unit is disposed on each side of the housing, and a trigger unit for triggering the detection unit is disposed on each side of the supporting platform opposite to the two sides of the housing; Wherein, the carrier forms a plurality of preset positions during the rotation process, and at each preset position, the trigger unit has a different trigger relationship with at least two of the detection units; and at least in one preset position, at least one detection unit on each side of the shell is triggered simultaneously by the trigger unit; the detection unit includes a first detection unit and a second detection unit; the two detection units are symmetrically arranged at the left and right sides of the shell, and the carrier has positioning plates symmetrically arranged on its left and right sides, and a plurality of the trigger units are arranged on the positioning plates to rotate with the positioning plates, so that when the positioning plates move to the preset position, they are in contact with each other. The corresponding detection units form a trigger relationship; the trigger units that trigger the detection units at different workstations are different, and during the rotation of the support platform, there is no trigger relationship between the positioning disk and the detection unit; the positioning disk is semicircular, and the two positioning disks can rotate synchronously, and the trigger units are provided along their respective circumferences and toward the detection units; one of the positioning disks is provided with a first trigger unit and a second trigger unit along the diameter direction of the semicircular disk, and the other positioning disk is provided with a third trigger unit arranged opposite to the first trigger unit and a fourth trigger unit that has an angle α with the third trigger unit and is not opposite to the second trigger unit.

2. The turning device according to claim 1, characterized in that: The preset workstations include a first workstation, a second workstation and a third workstation; wherein, when the carrier is at the first workstation, the first detection unit and the second detection unit are both triggered by the corresponding trigger unit on the carrier; when the carrier is at the second workstation, only the first detection unit is triggered by the corresponding trigger unit on the carrier; when the carrier is at the third workstation, only the second detection unit is triggered by the corresponding trigger unit on the carrier.

3. The turning device according to claim 1, characterized in that: The detection unit is a photoelectric pair, and includes a photoelectric emitter and a photoelectric receiver arranged corresponding to the photoelectric emitter; the trigger unit is a shielding plate, and the rotation of the supporting platform drives the shielding plate to move between the photoelectric emitter and the photoelectric emitter, correspondingly shielding to trigger the photoelectric pair.

4. A printer, characterized in that: The invention comprises a turning device according to any one of claims 1 to 3.

5. A flip positioning identification method, characterized in that: Applied to the printer as claimed in claim 4, comprising the following steps: receiving a detection signal group sent by at least two detection units; The workstation at which the flipping device is currently working is determined based on the correspondence between the detection signal group and the workstation.

6. The flip positioning identification method according to claim 5, characterized in that: Also includes: When it is detected that the detection unit is triggered by the trigger unit, the driving mechanism is controlled to rotate a predetermined number of steps, and after the rotation, the trigger state of the detection unit at the workstation is determined again.

7. The flip positioning identification method according to claim 6, characterized in that: Also includes: While the carrier is driven to rotate in the forward direction by the driving mechanism, the paper feed roller for conveying the medium to be printed is driven to rotate in the reverse direction accordingly; wherein, the rotation frequency of the carrier is consistent with that of the paper feed roller, so as to stabilize the medium to be printed and place it relatively still on the carrier.

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