An automatic pancake maker

Abstract

The utility model discloses an automatic baking machine, including casing, equipment frame, heating mechanism, baking mechanism, take cake mechanism, bagging mechanism, detection piece, temperature sensing piece and central control device, the import for delivering cake embryo is provided to the casing upper portion, the cake mouth is provided to the casing bottom, and the equipment frame is set up in the casing interior, and the import door corresponding with the import is movably set up to the equipment frame upper portion, and the baking cake storage area corresponding with the cake mouth is provided to the equipment frame bottom, heating mechanism sets up on the baking cake frame, and the heating area for baking cake embryo is provided between heating mechanism, baking mechanism sets up in the heating area, take cake mechanism sets up in the heating area and is located above baking mechanism. The utility model whole realization baking cake making's full automation process, from the material feeding trigger, positioning, heating baking to paper bag adsorption, open and take out cake bagging, all do not need manual intervention, effectively improved baking cake making efficiency, reduced manual operation cost.

Description

Technical Field

[0001] This utility model relates to the field of pasta processing technology, and in particular to an automatic pancake baking machine. Background Technology

[0002] Baked flatbread is a common traditional food that is loved by consumers. Currently, most baked flatbread production on the market relies on manual labor. From dough preparation and baking to packaging, all processes require manual intervention, which is not only inefficient but also costly. Furthermore, manual operation makes it difficult to ensure the standardization and stability of the baking process, easily leading to problems such as uneven baking and substandard hygiene.

[0003] With the development of automation technology, some semi-automatic pancake baking equipment has gradually emerged. However, these devices still require manual operation, such as manually placing the dough into the heating equipment and manually removing the pancakes and bagging them. The degree of automation is low, which cannot meet the needs of large-scale, high-efficiency pancake production. Furthermore, when manually bagging the pancakes after they are removed, the high temperature of the pancakes can easily burn the operators, and manual contact increases the risk of food microbial contamination. Utility Model Content

[0004] The purpose of this invention is to provide an automatic pancake maker to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An automatic pancake baking machine includes a housing, a frame, a heating mechanism, a baking mechanism, a pancake dispensing mechanism, a bagging mechanism, a detector, a temperature sensor, and a central control device. The housing has an inlet at its upper part for dispensing pancake dough and a dispensing port at its bottom. The frame is located inside the housing, with an inlet door movably mounted on its upper part corresponding to the inlet, and a pancake storage area at its bottom corresponding to the dispensing port. The heating mechanism is mounted on the baking frame, and a heating zone for baking pancake dough is provided between the heating mechanisms. The baking mechanism is located within the heating zone to receive the pancake dough fed from the inlet. The dispensing mechanism is located within the heating zone and... Located above the baking mechanism, it scrapes the baked pancakes carried on the baking mechanism downwards after baking; the bagging mechanism is located at the bottom of the equipment rack and below the baking mechanism. The bagging mechanism takes out the paper bag stored at the bottom of the equipment rack, places it in the pancake storage area, and opens the paper bag to receive the pancakes sliding down from the baking mechanism; the detector is located at the top of the equipment rack to detect the pancake dough entering from the inlet; the temperature sensor is located inside the equipment rack to detect temperature changes in the heating zone; the detector, the temperature sensor, the heating mechanism, the pancake retrieval mechanism, and the bagging mechanism are all electrically connected to the central control device.

[0007] Preferably, the heating mechanism includes two rows of symmetrically distributed heating tubes, such as stainless steel U-shaped heating tubes, with a power of 1.5-2kW / tube. Each row has 3-5 tubes spaced 10-15cm apart along the height of the equipment frame, and the distance between the two rows of heating tubes is 15-20cm, forming a heating zone with a width adapted to the diameter of the cake. The power supply circuit of the heating tubes includes a relay that is electrically connected to the central control device. The central control device achieves precise temperature regulation by adjusting the power supply duty cycle and using PWM control.

[0008] Preferably, the detector is a photoelectric detector, such as a diffuse reflection infrared sensor, located on the upper part of the equipment rack with the probe facing the inlet. When the dough passes through the inlet, it blocks the infrared beam, and the detector sends a high-level start signal to the central control device. The temperature sensor is a temperature sensor, such as a PT100 platinum resistance thermometer, with a temperature range of 0-300℃ and an accuracy of ±0.5℃. It is located at the center of the heating zone, equidistant from the upper and lower heating tubes, and collects temperature data in real time and transmits it to the central control device.

[0009] Preferably, the equipment rack is equipped with 2-4 cooling fans, distributed on both sides of the heating zone and the top of the equipment rack, and electrically connected to the central control device. The cooling fans accelerate the air circulation in the heating zone, so that the temperature is evenly distributed.

[0010] Preferably, the baking mechanism includes a baking net and a linkage. The mesh size of the baking net is 5×5mm to prevent the dough from falling while ensuring smooth heat flow. The baking net is movably positioned in the heating zone via a rotating shaft and can rotate 0-90° around the shaft. The linkage is movably connected to the baking net and, under the control of the central control device, drives the baking net to rotate, causing the baked dough to detach from the baking net and slide down to the bagging mechanism.

[0011] Preferably, the linkage includes a pancake griddle electromagnet and a linkage rod: the pancake griddle electromagnet is fixed to one side of the equipment frame and electrically connected to the central control device; one end of the linkage rod is connected to the side of the pancake griddle through a hinge, the middle part is movably mounted on the crossbar of the equipment frame through a bushing, and the other end is provided with an iron first suction head; when the pancake griddle electromagnet is energized, the first suction head drives the linkage rod to rotate, thereby driving the pancake griddle to flip, and the flipping angle is controlled by the length of the linkage rod, such as flipping 45° to make the pancake slide off.

[0012] Preferably, the cake-retrieving mechanism includes a cake-retrieving scraper, which is movably mounted on vertical guide rails on both sides of the equipment frame via a slider and can slide up and down; the top of the scraper is hinged to the lower end of the pull rod, the pull rod is hinged to the middle of the crossbar, one end of the crossbar is movably mounted on the column of the equipment frame via a bushing, and the other end is equipped with a second iron adsorption head, corresponding to the cake-retrieving electromagnet, the parameters of which are the same as those of the cake mesh electromagnet; when the cake-retrieving electromagnet is energized, the adsorption of the second adsorption head drives the crossbar to rotate, and pulls the scraper along the guide rail downwards via the pull rod, scraping the cake off the cake mesh. The downward speed of the scraper is 5-10cm / s to avoid breaking the cake.

[0013] Preferably, the bagging mechanism includes a bag-taking component and a bag-supporting component: a paper bag storage area is provided at the bottom of the equipment frame, a bag-taking component is provided on the side of the pancake storage area away from the storage area, and a bag-supporting component is provided above the pancake storage area; the bag-taking component and the bag-supporting component work together to ensure that the paper bag is already open and in the receiving position when the pancake slides down.

[0014] Preferably, the bag-retrieving component includes a bag-suction motor, a first bracket, and a suction cup; the bag-suction motor is fixed to the bottom of the equipment frame, and the power shaft is connected to one end of the first bracket via a coupling, driving the bracket to rotate horizontally by 0-90°, and the suction cup is installed at the other end of the bracket, which is connected to a miniature vacuum pump via an air pipe, with a vacuum degree of -0.08MPa; during operation, the suction cup adheres to the top layer of paper bags in the paper bag storage area, the vacuum pump draws a vacuum to adsorb the paper bags, and the bag-suction motor drives the bracket to rotate above the pancake storage area;

[0015] The bag-holding component includes a bag-holding motor, a second support, and a support claw. The support claw is an arc-shaped claw, with its curvature adapted to the opening of the paper bag. The bag-holding motor is fixed to the bottom of the equipment frame, and its power shaft is connected to one end of the second support, driving the support to lift and rotate. The other end of the support is connected to the support claw. When the paper bag is placed in the storage area, the bag-holding motor drives the second support to descend, causing the end of the support claw to insert into the opening of the paper bag. The outer side of the support claw fits against the inner wall of the paper bag. Then, the motor drives the support to rotate 10-15°, and the support claw opens the paper bag to both sides, expanding the opening diameter to 10-12cm to ensure that the pancake falls in smoothly. The suction motor, suction cup, and bag-holding motor are all electrically connected to the central control device to achieve coordinated bag retrieval and bag-holding sequence.

[0016] Preferably, the central control device includes an MCU and a temperature controller, such as a PID temperature control module, model RKC CB100. The MCU is electrically connected to the suction bag motor, suction cup, bag support motor, detector, and temperature sensor, respectively, to receive sensor signals and output control commands. The temperature controller is electrically connected to the power supply circuit of the heating mechanism. The MCU sends the target temperature to the temperature controller via a serial port. The temperature controller adjusts the power supply to the heating tube according to the real-time temperature feedback from the temperature sensor to achieve stable temperature in the heating zone.

[0017] Preferably, the central control device further includes a payment activation module, which is electrically connected to the MCU. The payment activation module includes a QR code generation unit and a signal receiving unit. The QR code generation unit generates a payment QR code. After the user scans the code to pay via a mobile terminal, the payment platform sends a payment success signal to the signal receiving unit. The signal receiving unit then transmits the signal to the MCU, and the MCU starts the machine after receiving the signal.

[0018] Preferably, the central control device further includes a manual start button and / or a coin-operated payment module, which is electrically connected to the MCU.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model requires no manual operation from the feeding of the dough to the baking and packaging of the cakes, reducing labor costs by 70%. The detection device triggers automatic start-up, avoiding human error, and ensuring even baking with less burning.

[0021] 2. In this utility model, two rows of symmetrical heating tubes form a uniform heating zone, and the temperature sensor provides real-time temperature feedback to avoid overheating or underheating;

[0022] 3. The bagging mechanism of this utility model is fully automated, avoiding manual contact with the high-temperature baking of the cakes and preventing microbial contamination of the cakes;

[0023] 4. This utility model realizes a fully automated process for making baked flatbreads. From feeding trigger, positioning, heating and baking to paper bag adsorption, opening and packaging, no manual intervention is required, which effectively improves the efficiency of making baked flatbreads and reduces the cost of manual operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0026] Figure 2 yes Figure 1 Rear view.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1. Photodetector; 2. Import door; 3. Temperature sensor; 4. Heating element; 5. Cooling fan; 6. Pancake mesh electromagnet; 7. Pancake retrieval electromagnet; 8. Central control device; 9. Temperature controller; 10. Suction bag motor; 11. Suction cup; 12. Bag support motor; 13. Pancake storage area; 14. Paper bag storage area; 15. Housing; 16. Support claw. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 The technical solution of this utility model will be further explained below:

[0030] like Figure 1-2 As shown, an automatic pancake baking machine includes a housing 15, a frame, a heating mechanism, a baking mechanism, a pancake dispensing mechanism, a bagging mechanism, a detector, a temperature sensor, and a central control device 8. The housing 15 has an inlet for dispensing pancake dough at its upper part and a dispensing port at its bottom. Specifically, the housing 15 is entirely made of food-grade stainless steel, welded into a cylindrical shape, with a sandblasted surface. A long, narrow opening is centrally located at the top, accommodating round pancake dough with a diameter of 120-180mm. The dispensing port has a 45° chamfered edge to prevent jamming during dough insertion. A rectangular dispensing port is located at the front bottom, with a transparent, high-temperature resistant acrylic plate installed at the opening to allow observation of the bagging process. A silicone sealing ring is provided at the edge of the plate to prevent hot air from escaping and scalding the user.

[0031] Specifically, such as Figure 1As shown, the equipment rack is located inside the housing 15. An inlet door 2, corresponding to the inlet, is movably installed on the upper part of the equipment rack, and a baking storage area 13, corresponding to the baking opening, is located at the bottom of the equipment rack. In other words, the inlet door 2 is movably installed via a hinge directly below the upper baking opening. A torsion spring is installed at the door hinge, allowing it to close naturally. When the baking dough is inserted, it is pushed open by gravity and automatically resets after passing through, preventing heat from overflowing from the heating zone. The central area at the bottom is used to place the paper bag opened by the bagging mechanism, and an anti-slip silicone pad is provided at the bottom of this area to prevent the paper bag from shifting.

[0032] Among them, such as Figure 1 As shown, the heating mechanism is mounted on the baking rack, and heating zones for baking the dough are provided between the heating mechanisms. That is, they are symmetrically arranged along the left and right columns of the equipment rack, with gaps left from the front and rear inner walls to form independent heating chambers; the heating zones are located between the two rows of heating elements, covering the range of motion of the baking mechanism to ensure that the dough is heated evenly.

[0033] Specifically, such as Figure 1 As shown, the heating mechanism includes two rows of symmetrically distributed heating tubes 4, with a gap between the two rows of symmetrically distributed heating tubes 4 to form a heating zone; the power supply circuit of the heating tubes 4 is electrically connected to the central control device 8. That is to say, U-shaped heating tubes 4 are used, with two rows symmetrically distributed on the left and right, and each row is arranged at a certain interval along the height direction to form a three-dimensional heating field; the heating tubes 4 in the same row are staggered to avoid heating blind spots, and the distance between the inner sides of the two rows of heating tubes 4 forms the width of the heating zone, ensuring that the cross-sectional temperature of the heating zone is uniform.

[0034] Heating tube 4 is divided into two groups, each group is connected in series with a solid-state relay. The relay input is connected to the GPIO interface of the central control device 8. The central control device 8 controls the relay to turn on and off through PWM signal, and adjusts the duty cycle of the power supply of heating tube 4. For example, when the target temperature is 200℃, the duty cycle is 100% in the initial stage, and drops to 30%-50% when approaching the target. In addition, a thermal fuse is connected in series in the power supply circuit. When heating tube 4 is abnormally overheated, it melts and cuts off the power supply.

[0035] Among them, such as Figure 1 and Figure 2 As shown, the detector is located on the top of the equipment rack and is used to detect the dough entering from the inlet. The temperature sensor is located inside the equipment rack and is used to detect temperature changes within the heating zone. In other words, the detector detects whether a dough has been added; when a dough is added, operation is initiated. Furthermore, the temperature sensor monitors the temperature changes within the heating zone in real time to prevent excessively high temperatures.

[0036] Specifically, the detection element includes a photodetector 1, which is located on the upper part of the equipment rack and faces the inlet. When the photodetector 1 detects the dough being fed in, it sends a start signal to the central control device 8. The temperature sensing element includes a temperature sensor 3, which is located in the heating zone and electrically connected to the central control device 8. In other words, the photodetector 1 is a diffuse reflection infrared photodetector with a DC12V operating voltage and an NPN normally open output. It outputs a low level when an object is detected. The photodetector 1 is mounted on the upper crossbeam of the equipment rack, with its probe axis coinciding with the center of the dough feeding port, 30mm from the lower edge of the port. A metal protective cover is fitted over the probe to prevent oil contamination of the lens. When there is no dough, the infrared light emitted by the sensor is not reflected, resulting in a high-level output. When a dough is fed in, it blocks the beam and reflects some of the infrared light to the receiver, causing the sensor to output a low level and send a start signal to the central control device 8.

[0037] Temperature sensor 3 is a platinum resistance temperature sensor, which is fixed to the geometric center of the heating zone by a metal bracket. The probe is inserted 50mm into the heating zone to avoid direct contact with the heating tube 4 and to ensure the detection of ambient temperature. The bracket is insulated from the equipment rack and uses a ceramic gasket to prevent electromagnetic interference. The sensor is connected to the AD acquisition module of the central control device 8 through a shielded twisted pair cable to upload temperature data in real time.

[0038] When the detector detects the dough, it sends a low-level signal to the central control device 8. The central control device 8 immediately starts the heating mechanism. The temperature sensor collects the temperature of the heating zone in real time. The central control device 8 compares the temperature with the target temperature and adjusts the power of the heating tube 4. If the detector does not detect the dough but the temperature of the heating zone exceeds 50°C, the central control device 8 determines that it is burning dry, automatically cuts off the heating power and alarms.

[0039] Among them, such as Figure 1 and Figure 2 As shown, the equipment rack is equipped with several cooling fans 5, which are electrically connected to the central control device 8. That is, in this embodiment, the equipment rack has two cooling fans 5, which are used to accelerate airflow in the heating area, resulting in a more uniform temperature distribution.

[0040] Among them, such as Figure 1 As shown, the baking mechanism is located within the heating zone to support the dough pieces fed in from the inlet. Specifically, the baking mechanism is mounted on the crossbeams on both sides of the equipment frame via a rotating shaft, supporting the dough pieces falling from the feeding port and achieving 360° baking within the heating zone. After baking, a mechanical action causes the dough pieces to detach from the supporting surface and slide into the bagging mechanism.

[0041] Specifically, the baking mechanism includes a baking griddle and a linkage. The baking griddle is movably disposed within the heating zone and is movably connected to the linkage to drive the griddle within the heating zone. The linkage is electrically connected to the central control device 8. In other words, the baking griddle is made of 304 stainless steel wire mesh, with stainless steel edging to prevent scratches. A rotating shaft is welded to the center of the griddle, and both ends of the shaft are connected to the crossbeams on both sides of the equipment frame via deep groove ball bearings. The bearing seats are fixed to the crossbeams.

[0042] The linkage component converts external power into the rotational motion of the pancake griddle, enabling the pancake to be positioned and subsequently tilted and released. One end of the linkage component is movably connected to the edge of the pancake griddle via a hinge or pull rod, while the other end is connected to the power source, forming a lever structure. The linkage component drives the pancake griddle to rotate from the baking state to the tilted position and then to the sliding state. The rotation angle is limited by a limit block to ensure that the sliding position is consistent each time.

[0043] In other words, when the baking process is underway, the griddle supports and carries the dough, ensuring it is in full contact with the heating zone. The mesh structure ensures that hot air penetrates and the bottom of the dough is heated evenly. After baking, the linkage drives the griddle to rotate and tilt. Under the action of gravity and the pushing force of the scraper of the dough-removing mechanism, the baked dough slides down the inclined surface of the griddle to the bagging mechanism.

[0044] Among them, such as Figure 1 As shown, the linkage includes a pancake electromagnet 6 and a linkage rod. The pancake electromagnet 6 is disposed on one side of the equipment frame and is electrically connected to the central control device 8. One end of the linkage rod is movably connected to the pancake mesh, and the linkage rod is movably disposed on the equipment frame. The other end of the linkage rod is provided with a first suction head corresponding to the pancake electromagnet 6. That is, the pancake electromagnet 6 is a DC frame electromagnet, which is fixed to the right column of the equipment frame by an L-shaped bracket. The electromagnet coil is connected in series with a freewheeling diode and is connected to the GPIO interface of the central control device 8 through a relay. When the central control device 8 outputs a high level, the relay is activated, and the electromagnet is energized. The end of the linkage rod is movably connected to the extension ear plate of the pancake mesh edge through a fisheye bearing to ensure that the pancake mesh rotates without jamming. The middle part of the linkage rod is movably connected to the fixed shaft on the crossbeam of the equipment frame through a brass bushing to form a lever fulcrum. The other end of the linkage rod is welded with an iron disc, which is directly opposite the suction surface of the pancake electromagnet 6.

[0045] When the dough needs to be supported, the electromagnet is energized, attracting the linkage rod. The linkage rod causes the dough rack to tilt and intercept within the heating zone, presenting a supporting and lifting state. After baking, the central control device 8 outputs reverse DC power to the dough rack electromagnet 6. The electromagnet is energized and generates a reverse force, pushing the first suction head to move away from the electromagnet. This causes the linkage rod to rotate around the central fulcrum, and the dough rack gradually becomes vertical, which, together with the dough removal mechanism, removes the baked dough.

[0046] Among them, such as Figure 1 and Figure 2 As shown, the pancake-retrieving mechanism is located within the heating zone and above the pancake-baking mechanism. It is used to scrape the pancakes resting on the baking mechanism downwards after baking. In other words, the pancake-retrieving mechanism is installed above the baking mechanism and connected to the top beam of the equipment frame via a vertical guide rail. After baking, it slides downwards along the guide rail and uses a scraper to remove the pancakes from the surface of the baking mechanism. Combined with the flipping action of the baking mechanism, this ensures that no pancake residue slips off.

[0047] Specifically, the cake-retrieving mechanism includes a cake-retrieving scraper, which is movably mounted on the equipment frame and movably connected to a pull rod. The pull rod is movably connected to a crossbar, which is movably mounted on the equipment frame. A second adsorption head corresponding to the cake-retrieving electromagnet 7 is provided at the end of the crossbar away from the pull rod. The cake-retrieving electromagnet 7 is located on one side of the equipment frame and is electrically connected to the central control device 8. That is, the top of the scraper is fixed to a slider by bolts, and the slider is slidably connected to a vertical guide rail to ensure smooth vertical movement of the scraper. The cake-retrieving scraper is generally arc-shaped, with a 0.5mm rounded corner on the side in contact with the cake mesh to avoid scratching it. The two ends of the pull rod are movably connected to the connecting lugs at the top of the scraper and the connecting seat in the middle of the crossbar via spherical bearings. The middle of the crossbar is movably connected to the top beam of the equipment frame via a rotating shaft, forming a lever fulcrum. A second adsorption head is welded to the end of the crossbar away from the pull rod, with a smooth surface to ensure the electromagnet's adsorption area.

[0048] The pancake-removing electromagnet 7 is a DC push-pull type electromagnet fixed to the left column of the equipment frame via an L-shaped bracket. A return spring is sleeved on one end of the crossbar near the second adsorption head, with one end fixed to the crossbar and the other end fixed to the equipment frame column, keeping the crossbar in its initial position in its natural state. In the initial state, the pancake-removing electromagnet 7 is de-energized, and the return spring pulls the crossbar to rotate counterclockwise, with the scraper at its highest point under the pull of the pull rod. After the baking completion signal is triggered, the central control device 8 controls the pancake-removing electromagnet 7 to be energized, generating a suction force to attract the second adsorption head, causing the crossbar to rotate clockwise. The pull rod is pulled down, driving the scraper to slide down the guide rail until it contacts the surface of the pancake grid. The action of the pancake-removing mechanism and the flipping of the pancake grid start synchronously. The pushing force of the scraper and the tilting of the pancake grid form a combined force to ensure that the pancake is released instantly.

[0049] Among them, such as Figure 1As shown, the bagging mechanism is located at the bottom of the equipment rack and below the baking mechanism. The bagging mechanism removes paper bags stored at the bottom of the equipment rack, places them in the baking storage area 13, and opens the paper bags to catch the pancakes sliding down from the baking mechanism. In other words, the bagging mechanism is installed at the bottom of the equipment rack, and a paper bag storage area 14 is provided on one side of the bottom of the equipment rack, which can hold 100 labeled pancake paper bags. It starts 10 seconds before baking is complete, automatically removing a single paper bag from the storage area, transferring it to the baking storage area 13, and opening the bag opening to catch the sliding pancakes, achieving a seamless "baking-bagging" process.

[0050] Specifically, such as Figure 1 As shown, the bagging mechanism includes a bag-removing component and a bag-supporting component. A paper bag storage area 14 for storing paper bags is provided on one side of the pancake storage area 13. A bag-removing component is provided on the side of the pancake storage area 13 away from the paper bag storage area 14, for removing the paper bags stored in the paper bag storage area 14 and placing them in the pancake storage area 13. A bag-supporting component is provided above the pancake storage area 13 for opening up the paper bags placed in the pancake storage area 13. In other words, the pancake storage area 13 is located in the central area at the bottom of the equipment rack, with a food-grade silicone mat at the bottom; the paper bag storage area 14 is located on one side of the pancake storage area 13. The bag retrieval device is used to retrieve one paper bag at a time from the paper bag storage area 14 and transfer it to the center of the pancake storage area 13; the bag support device opens the flat paper bag transferred to the pancake storage area 13 to form an upward-opening cavity to receive the pancakes that slide down. After the bag retrieval device completes the placement of the paper bag, the bag support device is immediately activated. The bagging process starts 10 seconds after the pancakes are baked and is completed when the pancakes slide down, ensuring a seamless connection.

[0051] Specifically, such as Figure 1 and Figure 2As shown, the bag-collecting component includes a bag-suction motor 10, a first bracket, and a suction cup 11. The power shaft of the bag-suction motor 10 is connected to one end of the first bracket, and the other end of the bracket is provided with the suction cup 11. The bag-supporting component includes a bag-supporting motor 12, a second bracket, and a support claw 16. The power shaft of the bag-supporting motor 12 is connected to one end of the second bracket, and the other end of the second bracket is connected to the support claw 16. The end of the support claw 16 is inserted into the paper bag, and the support claw 16 is in contact with the inner wall of one side of the paper bag. Driven by the bag-supporting motor 12, the support claw 16 pushes one side of the paper bag outward. The bag-suction motor 10, the suction cup 11, and the bag-supporting motor 12 are all electrically connected to the central control device 8. In other words, the suction bag motor 10 is fixed to the bottom of the equipment frame by a motor bracket, and the power shaft is connected to the first bracket by a coupling. The first bracket is an L-shaped aluminum alloy bracket, and a suction cup 11 is installed at the end of the long arm. It can rotate 360° to adjust the angle of the suction cup 11. The suction cup 11 is a food-grade nitrile rubber vacuum suction cup 11, which is connected to a micro vacuum pump through a PU air tube. A pressure sensor is installed on the suction cup 11 to detect the adsorption status. When the vacuum degree is lower than -60kPa, the adsorption is considered successful.

[0052] The suction bag motor 10 drives the first bracket to rotate 90° clockwise, so that the suction cup 11 is perpendicular to the surface of the uppermost paper bag in the storage area; the MCU controls the vacuum pump to start, and a -70kPa vacuum is formed in the suction cup 11. The pressure sensor feeds back a signal that the adsorption is successful, and the suction bag motor 10 drives the first bracket to rotate 90° counterclockwise, transferring the paper bag to the positioning boss in the pancake storage area 13.

[0053] The bag-opening motor 12 is a DC geared motor with an encoder. The second bracket is a telescopic stainless steel bracket with a support claw 16 seat installed at the bottom. The support claw 16 is an arc-shaped claw with rounded corners at the claw end to avoid tearing the paper bag. After the paper bag placement signal is triggered, the bag-opening motor 12 drives the second bracket to rotate, so that the support claw 16 inserts into the opening of the paper bag and fits against the inner wall of the paper bag. As the bag-opening motor 12 rotates, it gradually opens the upper part of the paper bag. After the pancake falls in, the bag-opening motor 12 drives the bracket to rotate counterclockwise to reset.

[0054] The central control device 8 includes an MCU and a temperature controller 9. The MCU is electrically connected to the suction bag motor 10, the suction cup 11, the bag support motor 12 and the temperature controller 9 respectively. The temperature controller 9 is electrically connected to the power supply circuit of the heating mechanism. In other words, the MCU is a microcontroller that integrates multiple UART, SPI, and I2C interfaces and a 16-bit ADC. It is equipped with an 8MHz external crystal oscillator, a reset circuit (button reset + watchdog reset), and a JTAG debugging interface. The power module uses a DC-DC converter with an input of 12V and an output of 3.3V / 5V / 24V, an output current of 3A, and a ripple of ≤50mV. The temperature controller 9 uses an RKC CB100 PID temperature controller 9, which can be configured via the MCU serial port with a proportional band P=20%, an integral time I=60s, and a derivative time D=10s. It supports setting 5 commonly used temperatures (180℃ / 190℃ / 200℃ / 210℃ / 220℃) via the buttons on the central control device 8, or a custom input of 150-250℃ in 1℃ increments.

[0055] The photoelectric sensor outputs NPN, the suction cup 11 adsorption signal, limit switch, etc. are connected to the MCU GPIO through an optocoupler isolation circuit, the temperature sensor is acquired through the ADC module, the suction bag motor 10 / bag support motor 12 are connected to the MCU through the ULN2003 stepper motor driver board, and support forward and reverse rotation and speed adjustment through PWM control, the heating tube 4, vacuum pump, electromagnet are controlled through the relay module, and the relay coil is connected in parallel with the freewheeling diode to protect the MCU port.

[0056] It should be noted that a QR code payment activation module is also set on the outer shell. Users can scan the QR code to power on the device, and then put in the dough to start automatic baking. The QR code payment activation module is a mature existing technology, which will not be described in detail here.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automatic pancake baking machine, characterized in that, include: The shell (15) has an inlet for feeding the dough at the top and a dough-taking opening at the bottom. The equipment rack is located inside the housing (15). The upper part of the equipment rack is movably provided with an inlet door (2) corresponding to the inlet. The bottom of the equipment rack is provided with a baking storage area (13) corresponding to the baking opening. A heating mechanism is provided on the baking rack, and a heating zone for baking the dough is provided between the heating mechanisms; A baking mechanism, which is disposed within the heating zone, is used to hold the dough fed in from the inlet; A cake-scooping mechanism is disposed within the heating zone and above the cake-baking mechanism to scrape the cakes carried on the cake-baking mechanism downwards after baking is completed. A bagging mechanism is provided at the bottom of the equipment rack and below the baking mechanism. The bagging mechanism takes out the paper bag stored at the bottom of the equipment rack, places it in the baking storage area (13), and opens the paper bag to receive the baking pancakes sliding down from the baking mechanism. The detector, temperature sensor and central control device (8) are provided. The detector is located on the top of the equipment rack and is used to detect the cake entering from the inlet. The temperature sensor is located inside the equipment rack and is used to detect temperature changes in the heating zone. The detector, the temperature sensor, the heating mechanism, the cake taking mechanism and the bagging mechanism are all electrically connected to the central control device (8).

2. The automatic pancake machine as described in claim 1, characterized in that, The heating mechanism includes two rows of symmetrically distributed heating tubes (4), and a gap is provided between the two rows of symmetrically distributed heating tubes (4) to form a heating zone; the power supply circuit of the heating tubes (4) is electrically connected to the central control device (8).

3. The automatic pancake machine as described in claim 1, characterized in that, The detection device includes a photodetector (1), which is located on the upper part of the equipment rack and faces the inlet position. When the photodetector (1) detects the dough being put in, it sends a start signal to the central control device (8). The temperature sensing device includes a temperature sensor (3), which is located in the heating zone and is electrically connected to the central control device (8).

4. The automatic pancake machine as described in claim 1 or 3, characterized in that, The equipment rack is equipped with several cooling fans (5), and the cooling fans (5) are electrically connected to the central control device (8).

5. The automatic pancake machine as described in claim 1, characterized in that, The baking mechanism includes a baking grid and a linkage. The baking grid is movably disposed within the heating zone and is movably connected to the linkage to drive the baking grid to move within the heating zone. The linkage is electrically connected to the central control device (8).

6. The automatic pancake baking machine as described in claim 5, characterized in that, The linkage includes a pancake electromagnet (6) and a linkage rod. The pancake electromagnet (6) is disposed on one side of the equipment frame and is electrically connected to the central control device (8). One end of the linkage rod is movably connected to the pancake and is movably disposed on the equipment frame. The other end of the linkage rod is provided with a first adsorption head corresponding to the pancake electromagnet (6).

7. The automatic pancake machine as described in claim 1, characterized in that, The cake-retrieving mechanism includes a cake-retrieving scraper, which is movably mounted on the equipment frame and movably connected to a pull rod. The pull rod is movably connected to a crossbar, which is movably mounted on the equipment frame. A second suction head corresponding to the cake-retrieving electromagnet (7) is provided at one end of the crossbar away from the pull rod. The cake-retrieving electromagnet (7) is located on one side of the equipment frame and is electrically connected to the central control device (8).

8. The automatic pancake machine as described in claim 1, characterized in that, The bagging mechanism includes a bag-removing component and a bag-supporting component. A paper bag storage area (14) for storing paper bags is provided on one side of the pancake storage area (13). A bag-removing component is provided on the side of the pancake storage area (13) away from the paper bag storage area (14) for removing the paper bags stored in the paper bag storage area (14) and placing them in the pancake storage area (13). A bag-supporting component is provided above the pancake storage area (13) for opening up the paper bags placed in the pancake storage area (13).

9. The automatic pancake machine as described in claim 8, characterized in that, The bag-retrieving component includes a bag-suction motor (10), a first bracket, and a suction cup (11). The power shaft of the bag-suction motor (10) is connected to one end of the first bracket, and the other end of the bracket is provided with a suction cup (11). The bag-supporting component includes a bag-supporting motor (12), a second bracket, and a support claw (16). The power shaft of the bag-supporting motor (12) is connected to one end of the second bracket, and the other end of the second bracket is connected to the support claw (16). The end of the support claw (16) is inserted into the paper bag, and the support claw (16) is in contact with the inner wall of one side of the paper bag. Under the drive of the bag-supporting motor (12), the support claw (16) pushes one side of the paper bag to open outward. The bag-suction motor (10), the suction cup (11), and the bag-supporting motor (12) are all electrically connected to the central control device (8).

10. The automatic pancake machine as described in claim 9, characterized in that, The central control device (8) includes an MCU and a temperature controller (9). The MCU is electrically connected to the suction bag motor (10), the suction cup (11), the bag support motor (12), and the temperature controller (9). The temperature controller (9) is electrically connected to the power supply circuit of the heating mechanism. The MCU is electrically connected to the QR code payment start module.

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