Conveying assembly and baking machine

Abstract

The utility model discloses a conveying assembly and a baking machine, and the conveying assembly comprises a conveying part which is provided with a connecting part so as to be connected with a printing medium at a designated position, so that the conveying part drives the printing medium to move; the position indicating piece is provided with an indicating part, the position indicating piece moves along with the movement of the conveying piece, and a mapping relation exists between the indicating part and the connecting part; and the position detection circuit is arranged in the moving path of the position indicating piece and is used for generating a positioning detection signal when the indicating part moves to a preset position. According to the technical scheme, the position of the connecting part can be accurately determined through the positioning detection signal, so that the connecting part is accurately connected with the printing medium, the connecting accuracy of the connecting part and the printing medium is improved, meanwhile, automatic combination of the printing medium and the conveying assembly is achieved, manual operation of a user is not needed, user operation is simplified, and user experience is improved. And the combination efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of digital printing, and particularly relates to a conveying assembly and a baking machine. BACKGROUND

[0002] DTF (Direct to Film) technology is a printing technology, which can transfer colorful or monochrome design patterns onto various objects such as clothes and hats made of various materials, and generally requires processes such as printing design, scattering hot melt adhesive powder, and heating transfer.

[0003] In the baking process, the printing medium usually needs to be combined with the internal structure in the baking machine, so that the internal structure of the baking machine can drive the printing medium to run in the baking machine, thereby realizing the baking of the printing medium. However, the current combination mode of the printing medium and the internal structure in the baking machine usually needs manual operation, that is, the user manually fixes the printing medium in the baking machine, thereby causing low combination efficiency and complicated operation of the two.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to provide a conveying assembly and a baking machine to improve the combination efficiency of the internal structure of the baking machine and the printing medium, and simplify the user operation.

[0006] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0007] According to one aspect of an embodiment of the present application, a conveying assembly is provided, comprising:

[0008] A conveying member is provided with a connecting portion to connect with a printing medium at a specified position to drive the printing medium to move;

[0009] A position indicating member is provided with an indicating portion, the position indicating member moves with the movement of the conveying member, and the indicating portion has a mapping relationship with the connecting portion;

[0010] A position detection circuit is arranged in the movement path of the position indicating member, and is used to generate a positioning detection signal when the indicating portion moves to a preset position.

[0011] In one embodiment of the present application, the position detection circuit comprises:

[0012] a detection circuit for generating a first positioning signal when the indicating part moves to the preset position;

[0013] a trigger circuit for triggering a second positioning signal according to the first positioning signal, the second positioning signal being used for indicating whether the connecting part reaches the specified position, and the second positioning signal being the positioning detection signal.

[0014] In an embodiment of the present application, the detection circuit comprises a signal generator for generating the first positioning signal by signal inversion when the indicating part passes.

[0015] In an embodiment of the present application, the signal generator comprises a signal transmitting tube and a signal receiving tube.

[0016] The position indicating member comprises a blocking part and a connecting part, the indicating part being the blocking part or the connecting part, the signal transmitting tube and the signal receiving tube being oppositely arranged and forming a signal transmitting / receiving path, the connecting part being used for connecting the signal transmitting / receiving path, and the blocking part being used for blocking the signal transmitting / receiving path; or,

[0017] The signal transmitting tube and the signal receiving tube of the transmission assembly are arranged on the same side, the position indicating member comprises a reflecting part and a hollow part, the indicating part being the reflecting part or the hollow part, the reflecting part being used for reflecting the signal emitted by the signal transmitting tube to the signal receiving tube, and the hollow part being used for allowing the signal emitted by the signal transmitting tube to pass through.

[0018] In an embodiment of the present application, the position detection circuit further comprises a first filter circuit, the first filter circuit comprising a first capacitor and a first resistor, the signal transmitting tube being connected in parallel with the first capacitor, one end of the first resistor being connected to a forward conducting end of the signal transmitting tube, and the other end of the first resistor being connected to a power supply; a reverse cut-off end of the signal transmitting tube being grounded; and / or,

[0019] The detection circuit further comprises a second filter circuit, the second filter circuit comprising a second capacitor and a second resistor, a controlled end of the signal receiving tube being used for receiving the signal emitted by the signal transmitting tube, a first end of the signal receiving tube being grounded, a second end of the signal receiving tube being connected to the trigger circuit, the second capacitor being arranged between the first end and the second end of the signal receiving tube, one end of the second resistor being connected to the second end of the signal receiving tube, and the other end of the second resistor being connected to the power supply.

[0020] In an embodiment of the present application, the position detection circuit further comprises an indication circuit connected with the detection circuit, for generating a position indication signal according to the first positioning signal, the position indication signal being used for indicating whether the indication part is moved to the preset position; and / or,

[0021] The position detection circuit further comprises a first electrostatic protection and filtering circuit, the first electrostatic protection and filtering circuit comprising a first electrostatic discharge protection diode, a first filtering capacitor and a first magnetic bead, one end of the first electrostatic discharge protection diode being connected with the detection circuit and the other end being grounded; one end of the first filtering capacitor being connected with the detection circuit and the other end being grounded; a first end of the first magnetic bead being connected with the detection circuit and a second end being connected with the trigger circuit.

[0022] In an embodiment of the present application, the trigger circuit comprises a flip-flop, a filtering circuit and a current limiting circuit.

[0023] The input end of the flip-flop is connected with the detection circuit through the current limiting circuit, and the output end of the flip-flop is used for outputting the second positioning signal.

[0024] The power supply end of the flip-flop and the filtering circuit are both connected with a power supply.

[0025] In an embodiment of the present application, the filtering circuit comprises a second filtering capacitor, one end of the second filtering capacitor being connected with the power supply end of the flip-flop and the other end being grounded; and / or,

[0026] The current limiting circuit comprises a first current limiting resistor, one end of the first current limiting resistor being connected with the detection circuit and the other end being connected with the input end of the flip-flop.

[0027] In an embodiment of the present application, the trigger circuit further comprises a second current limiting resistor, one end of the second current limiting resistor being connected with the output end of the flip-flop and the other end being used for outputting the second positioning signal; and / or,

[0028] The trigger circuit further comprises a pull-up resistor, one end of the pull-up resistor being connected with the power supply and the other end being connected with the output end of the flip-flop; and / or,

[0029] The trigger circuit further comprises a second electrostatic protection and filtering circuit, the second electrostatic protection and filtering circuit comprising a second electrostatic discharge protection diode and a third filtering capacitor; a first end of the second electrostatic discharge protection diode and a first end of the third filtering capacitor being connected with the detection circuit, and a second end of the second electrostatic discharge protection diode and a second end of the third filtering capacitor being grounded.

[0030] In one embodiment of the present application, the conveying member comprises a conveying belt, and the connecting portion is a protrusion provided on the conveying belt; and / or,

[0031] The connecting portion is a plurality of connecting portions, and the plurality of connecting portions are arranged at intervals along the conveying direction of the conveying member; and / or,

[0032] The position indicating member comprises a code disc, and the indicating portion is a solid portion or a hollow portion on the code disc; and / or,

[0033] The indicating portion is a plurality of indicating portions, and the plurality of indicating portions are arranged at intervals along the rotation axis of the code disc. According to one aspect of the embodiment of the present application, a baking machine is provided, which comprises the conveying assembly provided by any one of the embodiments of the present application.

[0034] In the technical solution provided by the embodiment of the present application, the conveying assembly comprises a conveying member, a position indicating member and a position detection circuit. The conveying member is provided with a connecting portion, so as to be connected with a printing medium at a specified position to drive the printing medium to move. The position indicating member has an indicating portion. The position indicating member moves with the conveying member, and the indicating portion has a mapping relationship with the connecting portion. The position detection circuit is arranged in the movement path of the position indicating member, and is configured to generate a positioning detection signal when the indicating portion moves to a preset position. In this way, the position of the connecting portion on the conveying member can be clearly obtained by the position detection circuit, so that the connecting portion is combined with the printing medium at the preset position. The accuracy of the combination of the connecting portion and the printing medium is improved by this accurate positioning. Meanwhile, the action of automatically combining the printing medium with the conveying assembly inside the baking machine is realized, and manual operation of the user is not required, so that the operation of the user is simplified, and the combination efficiency of the internal structure of the baking machine and the printing medium is improved.

[0035] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0036] The drawings incorporated into the specification and forming a part thereof illustrate embodiments in accordance with the present application and, together with the description, serve to explain the principles of the application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0037] Figure 1 A structural block diagram of a conveying assembly to which the technical solution of the present application is applied is schematically shown.

[0038] Figure 2A A structural block diagram of a conveying assembly to which the technical solution of the present application is applied is schematically shown.

[0039] Figure 2BA structural block diagram of a conveying assembly to which the technical solution of the present application is applied is schematically shown.

[0040] Figure 3 A circuit diagram of a position detection circuit provided by an embodiment of the present application is schematically shown.

[0041] Figure 4 A circuit diagram of a position detection circuit provided by an embodiment of the present application is schematically shown. DETAILED DESCRIPTION

[0042] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the inventive aspects to those skilled in the art.

[0043] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the

[0044] The block diagrams in the drawings show only the functional entities and not necessarily the physical separation of the functional entities. That is, the functional entities can be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0045] Figure 1 A structural block diagram of a conveying assembly to which the technical solution of the present application is applied is schematically shown.

[0046] As Figure 1 shown, the conveying assembly 100 comprises a conveying member 110, a position indicating member 120 and a position detection circuit 130. The conveying member 110 is provided with a connecting portion 111, which can be connected with a printing medium 200 at a specified position to drive the printing medium 200 to move. For example, the specified position can be the entrance of the printing medium 200 into the conveying assembly 100. The printing medium can be a medium printed with a pattern, such as a transfer film (PET film, PVC film, PS film, ABS film, PP film) and the like.

[0047] The position indicating member 120 can move with the movement of the conveying member 110, and the position indicating member 120 comprises an indicating part 121, which has a mapping relationship with the connecting part 111 in the conveying member 110. For example, the movement of the connecting part 111 by a first distance corresponds to the movement of the indicating part 121 by a second distance or the rotation of the indicating part 121 by a predetermined angle. The first distance and the second distance can be equal or not equal. When the connecting part 111 moves to a specified position, the indicating part 121 moves to a preset position.

[0048] The position detection circuit 130 is arranged in the movement path of the position indicating member 120. When the indicating part 121 moves to the preset position, the position detection circuit 130 generates a positioning detection signal. Based on the positioning detection signal, it can be determined whether the indicating part 121 moves to the preset position. Since the indicating part 121 has a mapping relationship with the connecting part 111, based on the mapping relationship, it can be deduced whether the connecting part 111 moves to the specified position. Since the connecting part 111 can be connected with the printing medium 200 at the specified position, it can be further determined whether the connecting part 111 is connected with the printing medium 200. In this way, through the positioning detection signal, the position of the connecting part 111 can be known, and the movement speed of the connecting part 111 and the movement speed of the printing medium 200 can be controlled, so that they are connected at the specified position, thereby improving the accuracy of the combination of the connecting part 111 and the printing medium 200. At the same time, based on this position detection, the automatic combination of the connecting part 111 and the printing medium 200 can be realized, without the need for manual operation by the user, thereby simplifying the user operation and improving the combination efficiency of the internal structure of the baking machine and the printing medium 200.

[0049] In an embodiment of the present application, the conveying assembly 100 is applied to a baking machine. The printing medium 200 is usually conveyed to the conveying assembly 100 in the baking machine by a printing host after completing a printing operation, and therefore the specified position is usually the entrance of the conveying assembly 100, where the entrance refers to the entrance of the printing medium 200 on the conveying assembly 100.

[0050] In the technical solution of the present application, the printing medium 200 has a plurality of connecting parts 111 on both sides, and the distances between the connecting parts 111 are the same. Correspondingly, in the conveying member 110, the number of the connecting parts 111 is multiple, and the connecting parts 111 are arranged at intervals along the conveying direction of the conveying member 110. The distance between any two adjacent connecting parts 111 is the same, and the distance between the two adjacent connecting parts 111 is matched with the distance between the two adjacent connecting units on the printing medium 200, so that the connecting part 111 can be connected with the printing medium 200 at the specified position.

[0051] Figure 2A The structure block diagram of the conveying assembly applying the technical solution of the present application is schematically shown.

[0052] AsFigure 2A As shown, the conveying member 110 includes a conveying belt 112, and the connecting portion 111 is a protrusion provided on the conveying belt 112. The connecting units on both sides of the printing medium 200 are connecting holes 210, and the protrusion on the conveying belt 112 can be connected with the connecting holes 210.

[0053] The position detection circuit 130 includes a detection circuit 131 and a trigger circuit 132. The detection circuit 131 is configured to generate a first positioning signal when the indicating portion 121 moves to a preset position; and the trigger circuit 132 is configured to trigger a second positioning signal according to the first positioning signal, the second positioning signal being used to indicate whether the connecting portion 111 reaches a specified position, and the second positioning signal being a positioning detection signal.

[0054] In an embodiment of the present application, the detection circuit 131 includes a signal generator, which is configured to generate a signal inversion when the indicating portion 121 passes through, so as to generate the first positioning signal. Specifically, a position where the signal generator is located can be taken as the preset position in the moving path of the indicating portion 121. When the indicating portion 121 passes through the signal generator, the signal generator can generate a first signal; and when the indicating portion 121 leaves the signal generator, the signal generator can generate a second signal. The first signal and the second signal are two opposite signals. Here, the first signal can be taken as the first positioning signal, or the first signal and the second signal can be combined as the first positioning signal. The combination of the first signal and the second signal can not only show when the indicating portion 121 moves to the preset position, but also show when the indicating portion 121 leaves the preset position, and further infer when the connecting portion 111 moves to the specified position and when the connecting portion 111 leaves the specified position.

[0055] In an embodiment of the present application, as shown in Figure 2A The signal generator includes a signal transmitting tube 131a and a signal receiving tube 131b. The position indicating member 120 includes a blocking portion 121a and a connecting portion 121b. The connecting portion 121a is configured to connect the signal transmitting path, and the blocking portion 121b is configured to block the signal transmitting path. The signal transmitting tube 131a and the signal receiving tube 131b are oppositely arranged and form the signal transmitting path.

[0056] In some embodiments, as shown in Figure 2A The detection circuit 131 includes a U-shaped structure, and the signal transmitting tube 131a and the signal receiving tube 131b are oppositely arranged at two sides of the U-shaped structure. When there is no shielding, the signal transmitted by the signal transmitting tube 131a can reach the signal receiving tube 131b, thereby forming a signal transmitting path. Both the blocking portion 121a and the connecting portion 121b can pass through the U-shaped structure. When the blocking portion 121a is located in the U-shaped structure, the signal transmitting path in the U-shaped structure is blocked, so that the signal generator generates a first signal; and when the connecting portion 121b is located in the U-shaped structure, the signal transmitting path in the U-shaped structure is normally connected, so that the signal generator generates a second signal.

[0057] In one embodiment of this application, the signal emitted by the signal transmitting tube 131a may be an optical signal, an ultrasonic signal, a magnetic signal, etc.

[0058] In one embodiment of this application, the position indicator 120 includes a code disk 120. The connecting portion 121b can refer to a gear-shaped hole formed on the code disk 120, also called a cutout portion; the blocking portion 121a can be a portion of solid material between two adjacent connecting portions 121b, also called a solid portion. The size of the connecting portion 121b matches the size of the connecting portion 111 in the conveyor 110, so that the connecting portion 111 can be inserted into the connecting portion 121b, thereby connecting the connecting portion 121b to the code disk 120. The spacing between two adjacent cutout portions also matches the spacing between two adjacent connecting portions 111.

[0059] In one embodiment of this application, the signal generator is a Hall sensor, and a magnet can be provided on the solid part of the code disk 120 to form a trigger part (equivalent to the function of the blocking part 121a or the connecting part 121b mentioned above). When the magnet passes through the Hall sensor, an electrical signal is generated, and when the cutout part passes through the Hall sensor, another electrical signal is generated.

[0060] like Figure 2A As shown, during the operation of the transport assembly 100, the printing medium 200 moves forward, and the transport member 110 also moves forward. At a designated position, hole 210 1 on the printing medium 200 engages with connecting part 1 1 on the transport member 110, so that the printing medium 200 engages with the transport member 110 in the area corresponding to hole 210 1. At the code disk 120, assume that connecting part 111 30 engages with the connecting part 121b in the code disk 120 at this time. As the printing medium 200 and the transport member 110 continue to move, hole 210 2 on the printing medium 200 moves to a designated position, and connecting part 111 2 on the transport member 110 also moves to a designated position, so hole 210 2 and connecting part 111 2 engage. At the code disk 120, the code disk 120 rotates with the movement of the transport member 110, so that connecting part 111 31 engages with the connecting part 121b in the code disk 120. Similarly, as the printing medium 200 and the conveyor 110 continue to operate, the holes 210 on the printing medium 200 will all be connected to the connecting parts 111 on the conveyor 110, so that the conveyor 110 can stably drive the printing medium 200 to run.

[0061] In the process of changing from the 30th connecting part 111 being combined with the communicating part 121b in the code disc 120 to the 31st connecting part 111 being combined with the communicating part 121b in the code disc 120, the code disc 120 rotates in the U-shaped groove structure of the detection circuit 131, and one communicating part 121b, one blocking part 121a and another communicating part 121b pass through the U-shaped groove structure in turn. Assuming that low level represents the passing of the communicating part 121b and high level represents the passing of the blocking part 121a, thus the detection circuit 131 can generate the first positioning signal with low level and high level rotating. It can be seen that when the communicating part 121b in the code disc 120 passes through the U-shaped groove structure, the connecting part 111 on the conveying member 110 has just reached the designated position combined with the hole 210 on the printing medium 200, and when the blocking part 121a in the code disc 120 passes through the U-shaped groove structure, the connecting part 111 on the conveying member 110 has not reached the designated position. Thus, based on this mapping relationship, the final positioning detection signal can indicate whether the connecting part 111 passes through the designated position.

[0062] Figure 2B The structural block diagram of the conveying assembly to which the technical scheme of the present application is applied is schematically shown.

[0063] Figure 2B The structure of the conveying assembly shown is similar to that of the conveying assembly shown in Figure 2A The structure of the conveying assembly shown is similar to that of the conveying assembly shown in Figure 2B In the conveying assembly shown, the signal emitting tube 131a and the signal receiving tube 131b are arranged on the same side, the position indicating member 120 includes a reflecting part 121c and a hollow part 121d, the indicating part 121 is the reflecting part 121c or the hollow part 121d, the reflecting part 121c is used for reflecting the signal emitted by the signal emitting tube 131a to the signal receiving tube 131b, and the hollow part 121d is used for allowing the signal emitted by the signal emitting tube 131a to pass through. Both the reflecting part 121c and the hollow part 121d can pass in front of the signal emitting end of the signal emitting tube 131a, when the reflecting part 121c passes through the signal emitting tube 131a, the signal emitted by the signal emitting tube 131a is reflected to the signal receiving tube 131b, so that the signal generator generates a third signal; when the hollow part 121d passes through the signal emitting tube 131a, the signal emitted by the signal emitting tube 131a passes through the hollow part 121d and cannot reach the signal receiving tube 131b, so that the signal generator generates a fourth signal. The third signal and the fourth signal herein can be the same as or different from the first signal and the second signal, for example, the third signal and the second signal are both low level signals, and the fourth signal and the first signal are both high level signals. Figure 2B The other structures of the conveying assembly shown are the same as those of the conveying assembly shown in Figure 2A The other structures of the conveying assembly shown are the same as those of the conveying assembly shown in

[0064] In an embodiment of the present application, the position indicating member 120 comprises a code disc, and a reflecting member can be arranged on the physical part of the code disc to form the reflecting part 121c, for example, the reflecting member can be a mirror; the hollow part on the code disc can be directly used as the hollow part 121d.

[0065] Figure 3 A circuit diagram of the position detection circuit provided by an embodiment of the present application is schematically shown, and the embodiment is a further refinement of the detection circuit in the above-mentioned embodiment.

[0066] As shown in Figure 3 The position detection circuit 131 comprises a signal emitting tube D, a signal receiving tube O and a first filter circuit, and the first filter circuit can be any circuit capable of realizing a filtering function, for example, the filtering can be realized by means of series inductance, parallel capacitance, common filtering of capacitance and inductance, π-type LC filtering, electronic filter, etc. It needs to be explained that any filter circuit of the present application can select a specific circuit structure according to the requirement, and different filter circuits can adopt the same circuit structure or different circuit structures.

[0067] In an embodiment of the present application, the first filter circuit comprises a first capacitance C1 and a first resistance R1. The signal emitting tube D is connected in parallel with the first capacitance C1, one end of the first resistance R1 is connected with the forward conducting end of the signal emitting tube D, and the other end is connected with the power supply VCC; the reverse cut-off end of the signal emitting tube D is grounded; the signal receiving tube O comprises a controlled end, a first end and a second end, wherein the controlled end of the signal receiving tube O is used to receive the signal emitted by the signal emitting tube D, the first end of the signal receiving tube O is grounded, and the second end of the signal receiving tube O is connected with the trigger circuit 132.

[0068] In an embodiment of the present application, the signal emitting tube D is a light emitting diode, and the signal receiving tube O is a phototriode, and the two are oppositely arranged on the two sides of the U-shaped groove structure. The second end of the signal receiving tube O is used to output the first positioning signal. Specifically, the control signal received by the controlled end of the signal receiving tube O is the light signal emitted by the signal emitting tube D. When the controlled end of the signal receiving tube O receives the light signal emitted by the signal emitting tube D, the first end and the second end of the signal receiving tube O are turned on, and since the first end of the signal receiving tube O is grounded, the second end of the signal receiving tube O is a low-level signal at this time. When the controlled end of the signal receiving tube O does not receive the light signal emitted by the signal emitting tube D, the first end and the second end of the signal receiving tube O cannot be turned on, and the voltage at the second end of the signal receiving tube O is affected by the power supply VCC at this time, which is a high-level signal.

[0069] In the code disc running process, when the entity part passes through the U-shaped groove structure, the entity part will shield the light signal emitted by the signal emitting tube D, so that the controlled end of the signal receiving tube O cannot receive the light signal emitted by the signal emitting tube D, thereby making the second end of the signal receiving tube O be a high-level signal; when the hollow part passes through the U-shaped groove structure, the light signal emitted by the signal emitting tube D can be transmitted to the controlled end of the signal receiving tube O through the hollow part, so that the second end and the first end of the signal receiving tube O are conducted, thereby making the second end of the signal receiving tube O be a low-level signal. Thus, the first positioning signal at the second end of the signal receiving tube O is similar to a square wave signal, which reflects the running condition of the code disc and also reflects the positioning condition of the connecting part.

[0070] In an embodiment of the present application, the signal emitting tube D, the signal receiving tube O and the U-shaped groove structure can constitute an electronic device, for example, a reflective optical interrupter.

[0071] In an embodiment of the present application, as shown in Figure 3 the detection circuit 131 includes a second filter circuit, the second filter circuit includes a second capacitor C2 and a second resistor R2, the second capacitor C2 is arranged between the first end of the signal receiving tube O and the second end of the signal receiving tube O; one end of the second resistor R2 is connected to the second end of the signal receiving tube O, and the other end is connected to the power supply VCC.

[0072] In an embodiment of the present application, as shown in Figure 3 the position detection circuit further includes an indication circuit 133, the indication circuit 133 is connected with the detection circuit 131, and is used for generating a position indication signal according to the first positioning signal, the position indication signal is used for reflecting whether the indicating part moves to a preset position. The position indication signal can be in the form of a sound signal, a light signal, etc.

[0073] In an embodiment of the present application, taking the light signal as an example of the position indication signal, as shown in Figure 3 the indication circuit 133 includes a light-emitting diode D3 and a third resistor R3, one end of the third resistor R3 is connected to the power supply VCC, and the other end is connected to the forward conducting end of the light-emitting diode D3, the reverse blocking end of the light-emitting diode D3 is connected with the detection circuit 131, here, the reverse blocking end of the second light-emitting diode D3 is mainly connected with the second end of the signal receiving tube O. Optionally, when the position indication signal is a sound signal, the light-emitting diode D3 can be replaced by a device capable of emitting a sound signal such as a buzzer, and other elements in the indication circuit 133 can also be adaptively adjusted according to the requirements.

[0074] When the second end of the signal receiving tube O is at low level, the positive and negative voltage difference of the light emitting diode D3 is large, the light emitting diode D3 is turned on, thereby emitting a light signal, at this time the hollow part in the indicating code disc passes through the U-shaped groove structure. When the second end of the signal receiving tube O is at high level, the positive and negative voltage difference of the light emitting diode D3 is small, the light emitting diode D3 cannot be turned on, and thus cannot emit a light signal, at this time the solid part in the indicating code disc passes through the U-shaped groove structure. In terms of visual effect, the position indication signal is the intermittent flashing light of the light emitting diode D3.

[0075] In an embodiment of the present application, as shown in Figure 3 the position detection circuit further comprises a first electrostatic protection and filtering circuit, the first electrostatic protection and filtering circuit is used to realize the electrostatic protection function and the filtering function, the electrostatic protection function can be realized by an electrostatic discharge (ESD) protection device, such as an ESD diode. The filtering function can be realized by a filtering circuit.

[0076] In an embodiment of the present application, the first electrostatic protection and filtering circuit comprises a first electrostatic discharge protection diode D1, a first filtering capacitor C3 and a first magnetic bead FB1; one end of the first electrostatic discharge protection diode D1 is connected to the detection circuit 131 (such as the second end of the signal receiving tube O), and the other end is grounded; one end of the first filtering capacitor C3 is connected to the detection circuit 131 (such as the second end of the signal receiving tube O), and the other end is grounded; one end of the first magnetic bead FB1 is connected to the detection circuit 131 (such as the second end of the signal receiving tube O), and the other end is connected to the trigger circuit 132. The first electrostatic discharge protection diode D1 is used to protect the circuit device from electrostatic discharge. The first filtering capacitor C3 is used to filter the positioning detection signal. The first magnetic bead FB1 is used to filter out high-frequency interference in the circuit.

[0077] In an embodiment of the present application, as shown in Figure 3 the position detection circuit further comprises a first connector J1, the first connector J1 comprises three interfaces. The position detection circuit further comprises a third electrostatic discharge protection diode D2 and a third magnetic bead FB2. One end of the third electrostatic discharge protection diode D2 is connected to the first interface 1 of the first connector J1, and the other end is grounded; one end of the third magnetic bead FB2 is connected to the first interface 1 of the first connector J1, and the other end is connected to the power supply VSS. The second interface 2 of the first connector J1 is used to output the first positioning signal. The third interface 3 of the first connector J1 is grounded. The first connector J1 is used to be connected with the trigger circuit 132, so as to transmit the first positioning signal to the trigger circuit 132.

[0078] Figure 4The circuit diagram of the position detection circuit provided by one embodiment of the present application is schematically shown, and the embodiment is a further refinement of the trigger circuit in the above embodiment.

[0079] As shown in Figure 4 , the trigger circuit 132 comprises a flip-flop U24, a filter circuit 1321 and a current limiting circuit 1322. The flip-flop U24 comprises an input end, an output end and a power supply end. The input end of the flip-flop U24 is connected to the detection circuit 131 (the second end of the signal receiving tube O as shown in Figure 3 ) through the current limiting circuit 1322, the output end of the flip-flop U24 is used for outputting the second positioning signal, and the power supply end of the flip-flop U24 and the filter circuit 1321 are both connected to the power supply VCC.

[0080] In one embodiment of the present application, as shown in Figure 4 , the filter circuit 1321 comprises a second filter capacitor C238, one end of the second filter capacitor C238 is connected to the power supply end of the flip-flop U24, and the other end is grounded.

[0081] In one embodiment of the present application, the filter circuit 1321 can comprise a plurality of filter capacitors, and one end of the plurality of filter capacitors is connected to the power supply end of the flip-flop U24 after being connected in parallel, and the other end is grounded. Taking two filter capacitors as an example, one end of the two filter capacitors is connected to the power supply end of the flip-flop U24, and the other end is grounded.

[0082] In one embodiment of the present application, as shown in Figure 4 , the current limiting circuit comprises a first current limiting resistor R320, one end of the first current limiting resistor R320 is connected to the detection circuit 131 (the second end of the signal receiving tube O as shown in Figure 3 ), and the other end is connected to the input end of the flip-flop U24.

[0083] In one embodiment of the present application, as shown in Figure 4 , the trigger circuit 132 further comprises a pull-down resistor, one end of the pull-down resistor is connected to the input end of the flip-flop U24, and the other end is grounded.

[0084] In one embodiment of the present application, the flip-flop U24 can be any flip-flop capable of changing its output state when receiving a specific input signal, such as a Schmitt trigger, an RS flip-flop, a D flip-flop, etc. In the present application, when the first positioning signal input into the flip-flop U24 is a high-level signal, the flip-flop U24 can output a high-level signal; then when the first positioning signal input into the flip-flop U24 is a low-level signal, the flip-flop U24 can output a low-level signal. Alternatively, when the first positioning signal input into the flip-flop U24 is a high-level signal, the flip-flop U24 can output a low-level signal; then when the first positioning signal input into the flip-flop U24 is a low-level signal, the flip-flop U24 can output a high-level signal.

[0085] In one embodiment of the present application, as shown in Figure 4 The trigger circuit 131 further comprises a second electrostatic protection and filtering circuit, which comprises a second electrostatic discharge protection diode D3 and a third filtering capacitor C245. The first end of the second electrostatic discharge protection diode D3 and the first end of the third filtering capacitor C245 are connected to the detection circuit 131, and the second end of the second electrostatic discharge protection diode D3 and the second end of the third filtering capacitor C245 are grounded. The second electrostatic discharge protection diode D3 also plays a role in static protection. The third filtering capacitor C245 is used for filtering processing.

[0086] In one embodiment of the present application, as shown in Figure 4 The trigger circuit further comprises a second current limiting resistor R321, one end of the second current limiting resistor R321 is connected to the output end of the flip-flop U24, and the other end is used for outputting a second positioning signal.

[0087] In one embodiment of the present application, the trigger circuit further comprises a pull-up resistor R319, one end of the pull-up resistor R319 is connected to the power supply VCC, and the other end is grounded.

[0088] In one embodiment of the present application, as shown in Figure 4 The trigger circuit 132 further comprises a fourth resistor R322, one end of the fourth resistor R322 is connected to the pull-up resistor R319, and the other end is grounded.

[0089] In one embodiment of the present application, as shown in Figure 4 The trigger circuit 132 further comprises a fourth filtering capacitor C244, one end of the fourth filtering capacitor C244 is connected to the output end of the flip-flop U24, and the other end is grounded.

[0090] In one embodiment of the present application, as shown in Figure 4 The trigger circuit 132 further comprises a second connector J2, which comprises three interfaces, and the three interfaces of the second connector J2 are respectively connected to the three interfaces of the aforementioned first connector J1 in one-to-one correspondence, that is, the first interface 1 of the second connector J2 is connected to the first interface 1 of the first connector J1; the second interface 2 of the second connector J2 is connected to the second interface 2 of the first connector J1, and the third interface 3 of the second connector J2 and the third interface 3 of the first connector J1 are grounded.

[0091] In an embodiment of the present application, the trigger circuit 132 further comprises a protection filtering module 1323, which comprises a fuse F13 and a filtering unit. One end of the fuse F13 is connected to the power supply VCC, and the other end is connected to the first interface 1 of the second connector J2. The filtering unit comprises a fifth filtering capacitor C242, one end of which is connected to the first interface 1 of the second connector J2, and the other end is grounded. When the current in the circuit is too large, the fuse F13 is blown, thereby cutting off the circuit and preventing the damage of the circuit board caused by short circuit from spreading to the later stage circuit.

[0092] In an embodiment of the present application, the filtering unit can comprise a plurality of filtering capacitors connected in parallel, one end of which is connected to the first interface 1 of the second connector J2, and the other end is grounded. Taking two filtering capacitors as an example, one end of each of the two filtering capacitors is connected to the first interface 1 of the second connector J2, and the other end is grounded.

[0093] The embodiments of the present application also provide a baking machine (not shown in the figure), which comprises the conveying assembly 100 described above.

[0094] In some embodiments, the baking machine can further comprise a baking assembly, a powder scattering assembly, and the like, to realize the baking of the printing medium.

[0095] It should be noted that although several modules or units of the device for action execution are mentioned in the foregoing detailed description, such a division is not mandatory. Indeed, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into several modules or units embodied.

[0096] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the present application along with its general principles and features. This application is intended to cover any and all such adaptations of variations of the application incorporating elements of the present application.

[0097] It is understood that the present application is not limited to the precise construction disclosed above and shown in the drawings, and that various modifications and changes can be effected therein by those skilled in the art without departing from the scope of the application. The scope of the application should be limited only by the appended claims.

Claims

1. A transfer assembly characterized by, The conveying assembly comprises: a conveying member, which is provided with a connecting portion to connect with a printing medium at a specified position to drive the printing medium to move; a position indicating member, which has an indicating portion and moves with the conveying member, and the indicating portion has a mapping relationship with the connecting portion; a position detecting circuit, which is arranged in a moving path of the position indicating member and generates a positioning detection signal when the indicating portion moves to a preset position.

2. The transfer assembly of claim 1, wherein, The position detecting circuit comprises: a detecting circuit, which generates a first positioning signal when the indicating portion moves to the preset position; a triggering circuit, which triggers a second positioning signal according to the first positioning signal, the second positioning signal is used to indicate whether the connecting portion reaches the specified position, and the second positioning signal is the positioning detection signal.

3. The transfer assembly of claim 2, wherein, The detecting circuit comprises a signal generator, which generates the first positioning signal by signal inversion when the indicating portion passes.

4. The transfer assembly of claim 3, wherein, The signal generator comprises a signal transmitting tube and a signal receiving tube; The position indicating member comprises a blocking portion and a communicating portion, the indicating portion is the blocking portion or the communicating portion, the signal transmitting tube and the signal receiving tube are oppositely arranged and form a signal transmitting and receiving path, the communicating portion is used to communicate the signal transmitting and receiving path, and the blocking portion is used to block the signal transmitting and receiving path; Or, The signal transmitting tube and the signal receiving tube of the conveying assembly are arranged on the same side, the position indicating member comprises a reflecting portion and a hollow portion, the indicating portion is the reflecting portion or the hollow portion, the reflecting portion is used to reflect the signal emitted by the signal transmitting tube to the signal receiving tube, and the hollow portion is used to allow the signal emitted by the signal transmitting tube to pass through.

5. The transfer assembly of claim 4, wherein, The position detecting circuit further comprises a first filter circuit, the first filter circuit comprises a first capacitor and a first resistor, the signal transmitting tube is connected in parallel with the first capacitor, one end of the first resistor is connected with a forward conducting end of the signal transmitting tube, and the other end is connected with a power supply; a reverse cut-off end of the signal transmitting tube is grounded; and / or The detecting circuit further comprises a second filter circuit, the second filter circuit comprises a second capacitor and a second resistor, a controlled end of the signal receiving tube is used to receive the signal emitted by the signal transmitting tube, a first end of the signal receiving tube is grounded, a second end of the signal receiving tube is connected with the triggering circuit, the second capacitor is arranged between the first end and the second end of the signal receiving tube, one end of the second resistor is connected with the second end of the signal receiving tube, and the other end is connected with the power supply.

6. The transfer assembly of claim 2, wherein, The position detecting circuit further comprises an indicating circuit, which is connected with the detecting circuit and is used to generate a position indicating signal according to the first positioning signal, the position indicating signal is used to indicate whether the indicating portion moves to the preset position; and / or The position detection circuit further comprises a first electrostatic protection and filtering circuit, the first electrostatic protection and filtering circuit comprising a first electrostatic discharge protection diode, a first filtering capacitor and a first magnetic bead, one end of the first electrostatic discharge protection diode being connected to the detection circuit and the other end being grounded, one end of the first filtering capacitor being connected to the detection circuit and the other end being grounded, and a first end of the first magnetic bead being connected to the detection circuit and a second end being connected to the trigger circuit.

7. The transfer assembly of claim 2, wherein, The trigger circuit comprises a flip-flop, a filtering circuit and a current limiting circuit. An input end of the flip-flop is connected to the detection circuit through the current limiting circuit, and an output end of the flip-flop is used for outputting the second positioning signal. A power supply end of the flip-flop and the filtering circuit are both connected to a power supply.

8. The transfer assembly of claim 7, wherein, The filtering circuit comprises a second filtering capacitor, one end of the second filtering capacitor being connected to the power supply end of the flip-flop and the other end being grounded; and / or, The current limiting circuit comprises a first current limiting resistor, one end of the first current limiting resistor being connected to the detection circuit and the other end being connected to the input end of the flip-flop.

9. The transfer assembly of claim 7, wherein, The trigger circuit further comprises a second current limiting resistor, one end of the second current limiting resistor being connected to the output end of the flip-flop and the other end being used for outputting the second positioning signal; and / or, The trigger circuit further comprises a pull-up resistor, one end of the pull-up resistor being connected to the power supply and the other end being connected to the output end of the flip-flop; and / or, The trigger circuit further comprises a second electrostatic protection and filtering circuit, the second electrostatic protection and filtering circuit comprising a second electrostatic discharge protection diode and a third filtering capacitor, a first end of the second electrostatic discharge protection diode and a first end of the third filtering capacitor being connected to the detection circuit, and a second end of the second electrostatic discharge protection diode and a second end of the third filtering capacitor being grounded.

10. The transfer assembly of any one of claims 1 to 9, wherein, The conveying member comprises a conveying belt, and the connecting part is a protrusion provided on the conveying belt; and / or, The connecting part is a plurality of connecting parts, and the plurality of connecting parts are arranged at intervals along a conveying direction of the conveying member; and / or, The position indicating member comprises a code disc, and the indicating part is a solid part or a hollow part on the code disc; and / or, The indicating part is a plurality of indicating parts, and the plurality of indicating parts are arranged at intervals along a rotation axis of the code disc.

11. A toasting machine characterised in that, The conveying assembly comprises the conveying member and the position indicating member. The conveying assembly comprises the conveying member and the position indicating member.

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