Uniform oil coating device for pastry surfaces
By combining laser sensors and an automatic cleaning structure, the height of the pastry oiling device can be adjusted and automatic cleaning can be achieved, solving the problems of uneven oiling and incomplete cleaning, thus improving production efficiency and food safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANKUANG ENERGY GRP CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-15
AI Technical Summary
Existing pastry oiling devices cannot adjust the brushing height according to the thickness of the pastry, resulting in uneven oiling, low efficiency, and impact on large-scale production. Furthermore, the inadequate cleaning design endangers food hygiene and safety and increases costs.
It uses a laser sensor to monitor the thickness of the surface in real time, controls the electric push rod to adjust the height of the spray plate and the coating strip, and realizes simultaneous spraying and brushing operations. It is also equipped with an automatic cleaning structure that uses heated cleaning fluid and water for automatic cleaning.
To ensure uniform oiling, improve production efficiency, reduce labor and maintenance costs, guarantee food hygiene and safety, and extend equipment lifespan.
Smart Images
Figure CN224234573U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pastry processing technology, and in particular to a device for uniformly coating the surface of pastries with oil. Background Technology
[0002] In the process of making pastries, the oiling of the surface is mostly done manually, by directly using a brush or other tools to apply oil to the surface of the pastries.
[0003] The surface oiling device has the following problems: it is difficult to accurately control the amount of oil dispensed, which leads to uneven oil application. Some pastries have more oil on them, while others have less, resulting in inconsistent surface color and other characteristics after the pastries are processed.
[0004] An existing patent (publication number: CN221488992U) discloses a device for uniformly coating the surface of pastries. This utility model uses a controller to start a pneumatic diaphragm pump to extract oil from the oil tank. The detection probe of the liquid level sensor detects the drop in the oil level inside the tank. When the level drops to a set range, the information is transmitted to the controller, which then controls the pneumatic diaphragm pump to shut down. The oil extracted by the pneumatic diaphragm pump is transported to the inside of the oil pipe through the delivery pipe and sprayed out through the atomizing nozzle, so that the atomized oil is evenly sprayed on the surface of the pastries. By starting the first motor, the lead screw rotates inside the slide plate, and the linked slider slides inside the slide plate. At the same time, the U-shaped brush plate is linked to brush the oil evenly on the surface of the pastries, thereby achieving the purpose of precisely controlling the amount of oil dispensed.
[0005] To address the aforementioned issues, existing patents have provided solutions. However, in practical applications, the U-shaped brush plate height of the proposed pastry oiling device is fixed and cannot be adjusted according to the thickness of the pastry, limiting the application of pastries of different thicknesses. The spraying and brushing processes are independent of each other, resulting in lower efficiency than synchronous operation equipment. This affects the output of large-scale production and increases costs. Furthermore, it is difficult to guarantee the uniformity of oiling. The cleaning design only targets the conveyor belt, and the U-shaped brush plate lacks a synchronous cleaning mechanism, which not only endangers food hygiene and safety and reduces the brushing effect but also increases labor and maintenance costs.
[0006] To address this, a device for uniformly coating the surface of pastries is proposed. Utility Model Content
[0007] The purpose of this utility model is to provide a device for uniformly coating the surface of pastries, which can solve the problems of the pastry coating device proposed in the above-mentioned patent. In actual use, the U-shaped brush plate has a fixed height and cannot be adjusted according to the thickness of the pastries, which limits the coating of pastries of different thicknesses. The spraying and coating processes are independent of each other, and the efficiency is lower than that of synchronous operation equipment, which affects the output of large-scale production and increases costs. It is also difficult to guarantee the uniformity of coating. The cleaning design is only for the conveyor belt, and the U-shaped brush plate lacks a synchronous cleaning mechanism, which not only endangers food hygiene and safety and reduces the coating effect, but also increases labor and maintenance costs.
[0008] To achieve the above objectives, the present invention provides the following technical solution: a device for uniformly coating the surface of pastries, comprising a frame, an electric conveyor belt disposed inside the frame, a bracket bolted to the top of the frame, a controller bolted to the left side of the bracket, an oil tank disposed at the top of the bracket, an oil valve connected to the bottom of the oil tank, and an oiling mechanism disposed at the top of the bracket.
[0009] The oiling mechanism includes an oil pump bolted to the bottom of a bracket. The absorption end of the oil pump is connected to the front of an oil valve. The output end of the oil pump is connected to a hose, and the front of the hose is connected to a pilot valve. An electric push rod is bolted to the bottom of the bracket. A fixed plate is bolted to the telescopic end of the electric push rod. A spray plate is bolted to the bottom of the fixed plate. An atomizing port is opened at the bottom of the spray plate. An oiling strip is provided at the bottom of the spray plate. A laser sensor is provided at the bottom of the fixed plate. A cleaning structure is provided at the top of the bracket. The cleaning structure is connected to the top of the pilot valve.
[0010] Preferably, the cleaning structure includes a cleaning liquid tank and a cleaning water tank disposed on the top of the support, and both the cleaning liquid tank and the cleaning water tank are connected to an output valve on their inner sides, and the output valve is electrically connected to the controller.
[0011] Preferably, a water pump is provided on the top of the bracket, the absorption end of the water pump is connected to the output valve, and the water pump is electrically connected to the controller.
[0012] Preferably, the output end of the water pump is connected to a water guide deformation pipe, the bottom of the water guide deformation pipe is connected to a water valve, and the top of the water valve is connected to the front side of the top of the guide valve.
[0013] Preferably, a water-receiving plate is bolted to the front side of the bottom inside the frame, and the water-receiving plate is located on the front side of the bottom of the electric conveyor belt.
[0014] Preferably, a brush plate is bolted to the top of the water receiving plate, and the top of the brush plate contacts the front side of the bottom of the electric conveyor belt.
[0015] Preferably, a water collection frame is fixedly connected to the front side of the water receiving plate, and a drainage hopper is fixedly connected to the bottom inside the water collection frame.
[0016] Preferably, the bottom of the drainage hopper is connected to a drainage pipe, and the drainage pipe is connected to an oily wastewater collection and treatment device.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This application, by setting up an oiling mechanism, allows a laser sensor to monitor the thickness of the dots in real time during the electric conveyor belt transport process and feed the data back to the controller. The controller then precisely controls the electric push rod to flexibly adjust the height of the spray plate and the oiling belt, solving the problem of fixed brushing height and ensuring that the oiling belt can adapt to dots of different thicknesses. At the same time, the oil pump draws oil from the oil tank through the oil valve and sprays it out through the atomization nozzle of the spray plate, and the oiling belt applies the oil simultaneously, realizing simultaneous spraying and brushing operations, which greatly improves the oiling efficiency of dots, reduces the time cost of large-scale production, and the two work together to ensure the uniformity of oiling and improve product quality.
[0019] 2. This application, by setting up a cleaning structure, ensures that when cleaning is required after oiling, the guide valve is closed and oil delivery is stopped. The cleaning structure first uses heated cleaning fluid to remove oil stains from the oiled belt, and then uses heated cleaning water for a second rinse. During this process, the falling cleaning fluid and cleaning water simultaneously clean the surface of the electric conveyor belt. This not only avoids the growth of bacteria from oil residue, ensuring food hygiene and safety and maintaining a good coating effect, but also reduces manual cleaning costs, extends the service life of the oiled belt, reduces the frequency of component replacement, and thus reduces equipment maintenance costs. Attached Figure Description
[0020] Figure 1 This is an overall structural diagram of the device for uniformly coating the surface of pastries according to this utility model.
[0021] Figure 2 This is a structural diagram of the framework of this utility model;
[0022] Figure 3 This is a structural diagram of the oiling mechanism of this utility model;
[0023] Figure 4 This is a structural diagram of the cleaning structure of this utility model;
[0024] Figure 5 This is a structural diagram of the water receiving plate of this utility model.
[0025] In the diagram, 1. Frame; 2. Electric conveyor belt; 3. Support; 4. Controller; 5. Oil tank; 6. Oil valve; 7. Oiling mechanism; 71. Oil pump; 72. Hoses; 73. Pilot valve; 74. Electric push rod; 75. Fixed plate; 76. Spray plate; 77. Oiling belt; 78. Laser sensor; 79. Cleaning structure; 791. Cleaning fluid tank; 792. Cleaning water tank; 793. Output valve; 794. Water pump; 795. Water guide deformation pipe; 8. Water receiving plate; 9. Brush plate; 10. Water collection frame; 11. Drain hopper; 12. Drain pipe. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-5 The present invention provides the following technical solution:
[0028] A device for uniformly coating the surface of pastries includes a frame 1, an electric conveyor belt 2 inside the frame 1, a bracket 3 bolted to the top of the frame 1, a controller 4 bolted to the left side of the bracket 3, an oil tank 5 on the top of the bracket 3, an oil valve 6 connected to the bottom of the oil tank 5, and an oiling mechanism 7 on the top of the bracket 3.
[0029] The oiling mechanism 7 includes an oil pump 71 bolted to the bottom of the bracket 3. The absorption end of the oil pump 71 is connected to the front side of the oil valve 6. The output end of the oil pump 71 is connected to a hose 72. The front side of the hose 72 is connected to a pilot valve 73. An electric push rod 74 is bolted to the bottom of the bracket 3. A fixed plate 75 is bolted to the telescopic end of the electric push rod 74. A spray plate 76 is bolted to the bottom of the fixed plate 75. An atomizing port is opened at the bottom of the spray plate 76. An oiling strip 77 is provided at the bottom of the spray plate 76. A laser sensor 78 is provided at the bottom of the fixed plate 75. A cleaning structure 79 is provided at the top of the bracket 3. The cleaning structure 79 is connected to the top of the pilot valve 73.
[0030] In this embodiment: By setting up the oiling mechanism 7, a highly efficient, hygienic, and adaptable pasta oiling process is achieved. During operation, the pasta is placed on the electric conveyor belt 2 for transport. The laser sensor 78 in the oiling mechanism 7 monitors the thickness of the pasta based on the triangulation principle. The laser emitter inside the laser sensor 78 emits a laser beam, which is directed at the pasta being transported on the electric conveyor belt 2 at a specific angle. When the laser beam comes into contact with the surface of the pasta, it is reflected. The reflected light is received by the position-sensitive detector inside the sensor, thereby realizing real-time monitoring of the pasta thickness and transmitting the data to the controller 4. The controller 4 precisely controls the extension and retraction of the electric push rod 74 based on this data, adjusting the height of the fixed plate 75, the spray plate 76, and the oiling belt 77 so that the oiling belt 77 can closely adhere to pasta of different thicknesses. At the same time, the oil pump 71 is started, pumping oil from the oil tank 5 through the oil valve 6 and the soft... Pipe 72 and guide valve 73 deliver oil to spray plate 76, spraying atomized oil from atomizing nozzle to evenly cover the surface of the pastries. Simultaneously, oiling belt 77 applies oil to the sprayed area. This simultaneous spraying and brushing greatly improves oiling efficiency and uniformity, ensuring consistent pastry quality. When cleaning is required after oiling, guide valve 73 is closed, stopping oil delivery. Cleaning structure 79 first uses heated cleaning fluid to remove oil stains from oiling belt 77, then re-washes with heated cleaning water. During this process, the falling cleaning fluid and water simultaneously clean the surface of electric conveyor belt 2. This not only prevents residual oil from breeding bacteria, ensuring food hygiene and safety and maintaining good coating results, but also reduces manual cleaning costs, extends the service life of oiling belt 77, reduces component replacement frequency, and thus lowers equipment maintenance costs, making the entire oiling device more practical and reliable.
[0031] Specifically, such as Figure 4 As shown, the cleaning structure 79 includes a cleaning liquid tank 791 and a cleaning water tank 792 disposed on the top of the bracket 3. Both the inner sides of the cleaning liquid tank 791 and the cleaning water tank 792 are connected to an output valve 793, which is electrically connected to the controller 4.
[0032] Specifically, such as Figure 4 As shown, a water pump 794 is installed on the top of the bracket 3. The absorption end of the water pump 794 is connected to the output valve 793, and the water pump 794 is electrically connected to the controller 4.
[0033] Specifically, such as Figure 4 As shown, the output end of the water pump 794 is connected to the water guide deformation pipe 795, the bottom of the water guide deformation pipe 795 is connected to the water valve, and the top of the water valve is connected to the front side of the top of the pilot valve 73.
[0034] In this embodiment: By setting up the cleaning structure 79, when the oiling work is completed and cleaning is required, the controller 4 controls the output valve 793 inside the cleaning fluid tank 791 and the cleaning water tank 792 to open. At this time, the water pump 794 starts, drawing out the heated cleaning fluid from the cleaning fluid tank 791 and delivering it to the oiling belt 77 through the water guide deformation pipe 795, the water valve, and the guide valve 73. The strong oil-dissolving ability of the heated cleaning fluid is used to remove the oil stains on the oiling belt 77. After the initial cleaning is completed, the controller 4 controls the water pump 794 to start again. 94. Heated cleaning water is drawn from the cleaning water tank 792 and rewashed on the oiling belt 77 along the same path. The falling cleaning liquid and water drip onto the electric conveyor belt 2 under gravity, and the surface of the belt is cleaned simultaneously. The whole process is highly automated, eliminating the need for manual deep cleaning, effectively preventing the growth of bacteria from oil residue, ensuring food hygiene and safety, maintaining a good coating effect on the oiling belt 77, reducing manual cleaning costs, extending the service life of the oiling belt 77, reducing the frequency of component replacement, and thus reducing equipment maintenance costs.
[0035] Specifically, such as Figure 5 As shown, a water receiving plate 8 is bolted to the front side of the bottom inside the frame 1, and the water receiving plate 8 is located on the front side of the bottom of the electric conveyor belt 2.
[0036] Specifically, such as Figure 5 As shown, a brush plate 9 is bolted to the top of the water receiving plate 8, and the top of the brush plate 9 is in contact with the front side of the bottom of the electric conveyor belt 2.
[0037] In this embodiment: by setting up a water receiving plate 8 and a brush plate 9, during the cleaning process, the cleaning liquid and cleaning water flowing down from the electric conveyor belt 2 will drip onto the water receiving plate 8, preventing sewage from splashing everywhere and keeping the environment around the equipment clean. At the same time, the brush plate 9 contacts the bottom of the electric conveyor belt 2. As the electric conveyor belt 2 rotates, the brush plate 9 can further brush away the residual oil and impurities on the electric conveyor belt 2, enhancing the cleaning effect. The water receiving plate 8 and the brush plate 9 work together to prevent sewage from polluting the working area and improve the cleanliness of the electric conveyor belt 2, ensuring the hygiene of the equipment and the quality of subsequent pastry processing.
[0038] Specifically, such as Figure 5 As shown, a water collection frame 10 is fixedly connected to the front side of the water receiving plate 8, and a drainage hopper 11 is fixedly connected to the bottom inside the water collection frame 10.
[0039] Specifically, such as Figure 5 As shown, the bottom of the drainage hopper 11 is connected to a drainage pipe 12, and the drainage pipe 12 is connected to an oily wastewater collection and treatment device.
[0040] In this embodiment: by setting up a water collection frame 10 and a drain pipe 12, the sewage collected on the water receiving plate 8 will flow into the water collection frame 10. The water collection frame 10 plays the role of collecting sewage in a concentrated manner, preventing sewage from accumulating on the water receiving plate 8. After the sewage is collected in the water collection frame 10, it flows through the drain hopper 11 at the bottom to the drain pipe 12. The drain pipe 12 is connected to an oily wastewater collection and treatment device to transport the sewage to a designated location for treatment. This structural design realizes the orderly discharge and centralized treatment of sewage, avoids the pollution of the environment caused by the random discharge of sewage, ensures the hygiene and cleanliness of the working environment of the entire oiling device, and is conducive to the long-term stable operation of the equipment.
[0041] Working Principle: During the use of the uniform oiling device for pastry surfaces, the pastry is first placed on the electric conveyor belt 2. The controller 4 starts the electric conveyor belt 2, which then transports the pastry. The laser sensor 78 on the rear bottom of the fixed plate 75, based on the triangulation principle, monitors the pastry thickness in real time and transmits the data to the controller 4. The controller 4 precisely controls the extension and retraction of the electric push rod 74 based on the received data, adjusting the height of the fixed plate 75, spray plate 76, and oiling belt 77 so that the oiling belt 77 can contact the surface of pastries with different thicknesses. Simultaneously, the controller... 4. The control oil pump 71 starts, and the oil in the oil tank 5 is sequentially transported to the spray plate 76 through the oil valve 6, hose 72 and pilot valve 73. The oil is sprayed from the atomizing port at the bottom of the spray plate 76, and the atomized oil is evenly covered on the surface of the dots. The oiling belt 77 simultaneously brushes the sprayed area. Spraying and brushing are carried out simultaneously, which effectively improves the oiling efficiency and uniformity and ensures the quality of the dots. After the oiling work is completed, when it is necessary to clean the oiling belt 77 and the electric conveyor belt 2, the pilot valve 73 is closed to stop the oil supply, and the cleaning program is started. The controller 4 controls the inner side of the cleaning liquid tank 791 and the cleaning water tank 792. The output valve 793 is opened, and the water pump 794 draws out the heated cleaning fluid from the cleaning fluid tank 791. This fluid is then transported to the oiled belt 77 via the water guide pipe 795, water valve, and pilot valve 73 to dissolve and remove oil stains. After the initial cleaning, the water pump 794 draws heated cleaning water from the cleaning water tank 792 and repeats the cleaning process on the oiled belt 77. The falling cleaning fluid and water drip onto the electric conveyor belt 2 under gravity, achieving synchronous cleaning of the surface of the electric conveyor belt 2. During the cleaning process, the cleaning fluid and water flowing from the electric conveyor belt 2 will drip onto the water receiving plate 8 as it rotates. To prevent wastewater from splashing everywhere, the brush plate 9 on the top of the water receiving plate 8 contacts the bottom of the electric conveyor belt 2. As the electric conveyor belt 2 rotates, it further brushes away residual oil and impurities. Wastewater dripping onto the water receiving plate 8 will flow into the water collection frame 10, be collected by the drainage hopper 11, and then be transported to the external oil and wastewater collection and treatment device through the drainage pipe 12. This achieves orderly discharge and centralized treatment of wastewater. The entire process is highly automated, which not only solves the problems of low oiling efficiency and incomplete cleaning in traditional devices, but also ensures food hygiene and safety and reduces labor and equipment maintenance costs.
[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for uniformly coating the surface of pastries, comprising a frame (1), characterized in that: An electric conveyor belt (2) is installed inside the frame (1). A bracket (3) is bolted to the top of the frame (1). A controller (4) is bolted to the left side of the bracket (3). An oil tank (5) is installed on the top of the bracket (3). An oil valve (6) is connected to the bottom of the oil tank (5). An oiling mechanism (7) is installed on the top of the bracket (3). The oiling mechanism (7) includes an oil pump (71) bolted to the bottom of the bracket (3). The absorption end of the oil pump (71) is connected to the front side of the oil valve (6). The output end of the oil pump (71) is connected to a hose (72). The front side of the hose (72) is connected to a pilot valve (73). An electric push rod (74) is bolted to the bottom of the bracket (3). A fixed plate (75) is bolted to the telescopic end of the electric push rod (74). A spray plate (76) is bolted to the bottom of the fixed plate (75). An atomizing port is opened at the bottom of the spray plate (76). An oiling strip (77) is provided at the bottom of the spray plate (76). A laser sensor (78) is provided at the bottom of the fixed plate (75). A cleaning structure (79) is provided at the top of the bracket (3). The cleaning structure (79) is connected to the top of the pilot valve (73).
2. The device for uniformly coating the surface of pastries according to claim 1, characterized in that: The cleaning structure (79) includes a cleaning liquid tank (791) and a cleaning water tank (792) disposed on the top of the bracket (3). Both the inner sides of the cleaning liquid tank (791) and the cleaning water tank (792) are connected to an output valve (793), and the output valve (793) is electrically connected to the controller (4).
3. The device for uniformly coating the surface of pastries according to claim 2, characterized in that: A water pump (794) is provided on the top of the bracket (3). The absorption end of the water pump (794) is connected to the output valve (793). The water pump (794) is electrically connected to the controller (4).
4. The device for uniformly coating the surface of pastries according to claim 3, characterized in that: The output end of the water pump (794) is connected to a water guide deformation pipe (795), the bottom of the water guide deformation pipe (795) is connected to a water valve, and the top of the water valve is connected to the front side of the top of the pilot valve (73).
5. The device for uniformly coating the surface of pastries according to claim 1, characterized in that: A water receiving plate (8) is bolted to the front side of the bottom inside the frame (1), and the water receiving plate (8) is located on the front side of the bottom of the electric conveyor belt (2).
6. The device for uniformly coating the surface of pastries according to claim 5, characterized in that: A brush plate (9) is bolted to the top of the water receiving plate (8), and the top of the brush plate (9) contacts the front side of the bottom of the electric conveyor belt (2).
7. The device for uniformly coating the surface of pastries according to claim 5, characterized in that: A water collection frame (10) is fixedly connected to the front side of the water receiving plate (8), and a drainage hopper (11) is fixedly connected to the bottom inside the water collection frame (10).
8. The device for uniformly coating the surface of pastries according to claim 7, characterized in that: The bottom of the drainage hopper (11) is connected to a drainage pipe (12), and the drainage pipe (12) is connected to an oily wastewater collection and treatment device.