A roasting apparatus

Abstract

This utility model belongs to the technical field of stir-frying devices, and in particular to a stir-frying device for baking. It includes a machine base, an electric heating plate mounted on the top of the machine base, pneumatic clamps on both sides of the electric heating plate on the top of the machine base, a stir-frying plate placed on top of the electric heating plate, an electric telescopic rod mounted on the top of the machine base, a supporting crossbar mounted on the top of the electric telescopic rod, a hollow rotating shaft rotatably mounted at one end of the supporting crossbar via a bearing, a stirring paddle mounted at the bottom end of the hollow rotating shaft, a motor mounted on the top of the supporting crossbar, the output end of the motor connected to a first gear, a second gear fixedly sleeved on the outer side of the hollow rotating shaft, a fixed shaft bracket mounted on the top of the supporting crossbar, a connecting fixed shaft fixedly mounted at the bottom of the fixed shaft bracket, integrally formed lateral hollow connecting rods connected to both sides of the hollow rotating shaft, a turning device rotatably mounted on the inner side of the lateral hollow connecting rods, and a second bevel gear at one end of the turning device. This device can effectively improve the stir-frying efficiency and uniformity.

Description

Technical Field

[0001] This utility model belongs to the technical field of frying devices, specifically relating to a frying device for baking. Background Technology

[0002] In the initial or refined processing of tea, roasting (also known as baking) is a crucial heat treatment step, directly affecting the aroma purity, flavor richness, and brewing endurance of the finished tea. Traditional tea-frying equipment is mostly a single-cavity direct-heating structure, with crude temperature control and a single stirring method, making it difficult to accurately handle the complex temperature control required for different types of tea. This limitation is particularly pronounced in advanced frying processes such as "nine-stage roasting," a refined heat treatment process widely used in the processing of high-end oolong tea, rock tea, and some green teas in recent years. Its basic concept is to divide the entire roasting process into nine heat treatment stages with consecutive temperature and time sequences and significantly different effects. Through strategies such as gradual heating, staged heat preservation, and precise cooling, it achieves the targeted transformation and flavor release of moisture, esters, alcohols, aldehydes, and ketones—aroma precursors—in the tea leaves. This process places extremely high demands on the thermal response speed, temperature control accuracy, stirring uniformity, and automatic collaborative control capabilities of the frying equipment.

[0003] Most tea-frying equipment commonly found on the market uses fixed-speed paddles or rotating drums for internal stirring, lacking a three-dimensional stirring and disturbance mechanism. This can easily lead to localized material accumulation and delayed heat conduction, affecting the uniformity of heating and the efficiency of internal quality transformation of the tea. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a stir-frying device for baking, which can effectively improve the efficiency and uniformity of stir-frying.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roasting device for baking, comprising a machine base, an electric heating plate mounted on the top of the machine base, pneumatic clamps on both sides of the electric heating plate on the top of the machine base, a roasting plate placed on top of the electric heating plate, an electric telescopic rod mounted on the top of the machine base, a supporting crossbar mounted on the top of the electric telescopic rod, a hollow rotating shaft rotatably mounted at one end of the supporting crossbar via a bearing, a stirring paddle mounted at the bottom end of the hollow rotating shaft, and a motor mounted on the top of the supporting crossbar. The output end is connected to the first gear. A second gear is fixedly sleeved on the outer side of the hollow shaft. A mesh cover fixing frame is installed at the bottom of the support cross frame. A mesh cover is installed at the bottom of the mesh cover fixing frame. A fixed shaft bracket is installed at the top of the support cross frame. A connecting fixed shaft is fixedly installed at the bottom of the fixed shaft bracket. The bottom end of the connecting fixed shaft is connected to the first bevel gear. Two integrally formed lateral hollow connecting rods are connected to both sides of the hollow shaft. A flipping device is rotatably installed on the inner side of the lateral hollow connecting rod. A second bevel gear is provided at one end of the flipping device.

[0006] The beneficial effects of this utility model are as follows: When this device is used to stir-fry tea, the electric heating plate is regulated by the control device to continuously provide a stable heat source to the stir-frying plate. At the same time, the electric telescopic rod drives the support crossbar to press down to the predetermined working position, so that the bottom of the mesh cover contacts the top of the stir-frying plate. The control motor starts and drives the first gear to rotate. The first gear drives the hollow shaft to rotate through meshing with the second gear. The stirring paddle rotates accordingly, continuously stirring the tea in the stir-frying plate to achieve uniform heating. At the same time, the hollow shaft also drives the lateral hollow connecting rods connected to its two sides to rotate synchronously. The shaft inside the lateral hollow connecting rod moves accordingly. Through the meshing of the second bevel gear and the first bevel gear, the shaft is driven to rotate, which drives the flipping device to rotate. The first and second flipping buckets on the flipping bucket fixing frame alternately scoop up the tea and throw it back onto the stir-frying plate as it rotates, effectively improving the stir-frying efficiency and uniformity.

[0007] During the stir-frying process, the mesh cover fixed by the mesh cover fixing frame under the support frame forms a three-dimensional protective structure for the stir-frying plate, preventing the tea leaves from splashing during the stir-frying process. This not only avoids the hot tea leaves splashing onto the personnel and ensures the safety of the operation, but also avoids the problem of tea leaves falling out and needing to be cleaned and recycled.

[0008] All units of the machine are coordinated and scheduled by a unified control device to achieve automatic linkage control of processes such as heating, clamping, stirring, and turning. Through the coordinated work of multiple steps of "heating + rotation stirring + shoveling and turning", it effectively overcomes the drawbacks of uneven stirring, easy burning at the bottom, and high manual operation intensity in traditional frying methods. It has significant beneficial effects such as high heating stability, strong stirring uniformity, high degree of automation, and sufficient safety protection, thereby improving the efficiency and quality control of tea roasting and processing.

[0009] To keep the stir-frying pan in place:

[0010] As a further improvement to the above technical solution: the pneumatic clamp includes a clamp bracket mounted on the top of the machine tool, a cylinder is mounted on one side of the clamp bracket, and the piston rod end of the cylinder is fixed to the clamping block.

[0011] The beneficial effects of this improvement are: the control cylinder drives the clamping block to clamp the frying pan and fix it, preventing displacement during heating and frying.

[0012] As a further improvement to the above technical solution: the stirring paddle has two blades, both of which are set at an angle of 45 degrees.

[0013] By using a paddle that is tilted at a 45-degree angle, the tea leaves can be stirred while passing over the top of the paddle.

[0014] As a further improvement to the above technical solution: the first gear meshes with the second gear, and the second bevel gear meshes with the first bevel gear.

[0015] When the motor drives the first gear to rotate, the first gear drives the second gear to rotate synchronously with the hollow shaft. When the hollow shaft rotates and drives the shaft to rotate in a circular motion, the second bevel gear, along with the movement of the shaft, transmits power with the first bevel gear, driving the shaft to rotate.

[0016] To improve stir-frying efficiency and evenness:

[0017] As a further improvement to the above technical solution: the tilting device includes a rotating shaft that is rotatably connected to the inner side of the lateral hollow connecting rod. One end of the rotating shaft is connected to the second bevel gear, and the other end of the rotating shaft is fixed to the tilting bucket fixing frame. The upper and lower ends of one side of the tilting bucket fixing frame are respectively fixedly connected to the first tilting bucket and the second tilting bucket.

[0018] The beneficial effects of this improvement are: when the flipping device rotates, the first and second flipping buckets on the flipping bucket fixing frame alternately scoop up the tea leaves and throw them back onto the frying pan as the rotation continues, effectively improving the frying efficiency and uniformity.

[0019] For the control of this device:

[0020] As a further improvement to the above technical solution: a control device is installed on the side of the machine tool.

[0021] The beneficial effects of this improvement are: the control device is equipped with a touch screen, and the control device has a processor module inside for controlling the device.

[0022] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the right front axonometric structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 This is a structural diagram of the stir-frying process of the mesh cover not shown in this utility model;

[0026] Figure 4 This is an enlarged structural diagram of part A of this utility model;

[0027] Figure 5 This is a schematic diagram of the flipping device in this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the mesh cover in this utility model;

[0029] In the diagram: 1. Machine base; 2. Electric heating plate; 3. Clamping bracket; 4. Cylinder; 5. Clamping block; 6. Stirring plate; 7. Electric telescopic rod; 8. Support crossbar; 9. Hollow rotating shaft; 10. Stirring paddle; 11. Motor; 12. First gear; 13. Second gear; 14. Mesh cover fixing frame; 15. Mesh cover; 16. Fixed shaft bracket; 17. Connecting fixed shaft; 18. First bevel gear; 19. Rotating shaft; 20. Second bevel gear; 21. Tipping bucket fixing frame; 22. First tipping bucket; 23. Second tipping bucket; 24. Lateral hollow connecting rod; 25. Control device. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0031] like Figure 1-6As shown, a baking and roasting apparatus includes a machine base 1. An electric heating plate 2 is mounted on the top of the machine base 1. Pneumatic clamps are provided on both sides of the electric heating plate 2 on the top of the machine base 1. A roasting pan 6 is placed on top of the electric heating plate 2. An electric telescopic rod 7 is mounted on the top of the electric telescopic rod 7. A support crossbeam 8 is mounted on top of the support crossbeam 8. A hollow rotating shaft 9 is rotatably mounted on one end of the support crossbeam 8 via a bearing. A stirring paddle 10 is mounted on the bottom end of the hollow rotating shaft 9. A motor 11 is mounted on top of the support crossbeam 8. The output end of the motor 11 is connected to a first gear 12. The hollow rotating shaft 9 is fixedly fitted with a second gear 13 on its outer side. A mesh cover fixing frame 14 is installed at the bottom of the supporting cross frame 8. A mesh cover 15 is installed at the bottom of the mesh cover fixing frame 14. A fixed shaft bracket 16 is installed at the top of the supporting cross frame 8. A connecting fixed shaft 17 is fixedly installed at the bottom of the fixed shaft bracket 16. The bottom end of the connecting fixed shaft 17 is connected to the first bevel gear 18. The hollow rotating shaft 9 is connected to two integrally formed lateral hollow connecting rods 24. A flipping device is rotatably installed on the inner side of the lateral hollow connecting rods 24. A second bevel gear 20 is provided at one end of the flipping device.

[0032] When this device is used to stir-fry tea leaves, the electric heating plate 2 is regulated by the control device 25 to continuously provide a stable heat source to the stir-frying plate 6. At the same time, the electric telescopic rod 7 drives the support crossbar 8 to press down to the predetermined working position, so that the bottom of the mesh cover 15 contacts the top of the stir-frying plate 6. The control motor 11 starts and drives the first gear 12 to rotate. The first gear 12 drives the hollow shaft 9 to rotate through the meshing with the second gear 13. The stirring paddle 10 rotates accordingly, continuously stirring the tea leaves in the stir-frying plate 6 to achieve uniform heating. At the same time, the hollow shaft 9 also drives the lateral hollow connecting rods 24 connected to its two sides to rotate synchronously. The shaft 19 inside the lateral hollow connecting rod 24 moves accordingly. Through the meshing of the second bevel gear 20 and the first bevel gear 18, the shaft 19 is driven to rotate, which drives the flipping device to rotate. The first flipping bucket 22 and the second flipping bucket 23 on the flipping bucket fixing frame 21 alternately scoop up the tea leaves and throw them back onto the stir-frying plate 6 as they rotate, effectively improving the stir-frying efficiency and uniformity.

[0033] During the stir-frying process, the mesh cover 15, which is fixed by the mesh cover fixing frame 14 under the support frame 8, forms a three-dimensional protective structure for the stir-frying plate 6, preventing the tea leaves from splashing during the stir-frying process. This not only avoids the hot tea leaves splashing onto the personnel and ensures the safety of the operation, but also avoids the problem of tea leaves falling out and needing to be cleaned and recycled.

[0034] All units of the machine are coordinated and scheduled by the control device 25 to realize automatic linkage control of processes such as heating, clamping, stirring, and turning. Through the coordinated work of multiple steps of "heating + rotation stirring + shoveling and turning", it effectively breaks through the drawbacks of uneven stirring, easy burning at the bottom, and high manual operation intensity in the traditional frying method. It has significant beneficial effects such as high heating stability, strong stirring uniformity, high degree of automation, and sufficient safety protection, thus improving the efficiency and quality control of tea roasting and processing.

[0035] The pneumatic clamp includes a clamp bracket 3 mounted on the top of the machine base 1, and a cylinder 4 is mounted on one side of the clamp bracket 3. The piston rod end of the cylinder 4 is fixed to the clamping block 5.

[0036] The control cylinder 4 drives the clamping block 5 to clamp the frying pan 6, fixing it in place and preventing displacement during heating and frying.

[0037] The stirring paddle 10 has two blades, both of which are tilted at a 45-degree angle.

[0038] By using a paddle that is tilted at a 45-degree angle, the tea leaves can be stirred while passing over the top of the paddle.

[0039] The first gear 12 meshes with the second gear 13, and the second bevel gear 20 meshes with the first bevel gear 18.

[0040] When the motor 11 drives the first gear 12 to rotate, the first gear 12 drives the second gear 13 to rotate synchronously with the hollow shaft 9. When the hollow shaft 9 rotates and drives the shaft 19 to rotate, the second bevel gear 20, along with the movement of the shaft 19, transmits power with the first bevel gear 18, driving the shaft 19 to rotate.

[0041] The flipping device includes a rotating shaft 19 rotatably connected to the inner side of the lateral hollow connecting rod 24. One end of the rotating shaft 19 is connected to the second bevel gear 20, and the other end of the rotating shaft 19 is fixed to the flipping bucket fixing frame 21. The upper and lower ends of one side of the flipping bucket fixing frame 21 are respectively fixedly connected to the first flipping bucket 22 and the second flipping bucket 23.

[0042] When the flipping device rotates, the first flipping bucket 22 and the second flipping bucket 23 on the flipping bucket fixing frame 21 alternately scoop up the tea leaves and throw them back onto the frying pan 6 as the rotation continues, effectively improving the frying efficiency and uniformity.

[0043] A control device 25 is installed on the side of the machine base 1.

[0044] The control device 25 is equipped with a touch screen and has a processor module inside for controlling the device.

[0045] The working principle and usage process of this utility model are as follows: When using this device, the operator first places the frying pan 6 on the electric heating plate 2 and starts the whole machine program through the control device 25. Then, the control cylinder 4 drives the clamping block 5 to clamp the frying pan 6 and fix it to prevent displacement during heating and frying. The control device 25 regulates the heating operation of the electric heating plate 2 to continuously provide a stable heat source to the frying pan 6. At the same time, the electric telescopic rod 7 drives the support crossbar 8 to press down to the predetermined working position, so that the bottom of the mesh cover 15 contacts the top of the frying pan 6. The control motor 11 starts and drives the first gear 12 to rotate. The first gear 12 drives the hollow rotating shaft 9 to rotate through meshing with the second gear 13. The stirring paddle 10 rotates accordingly to continuously stir the tea leaves in the frying pan 6 to achieve uniform heating. At the same time, the hollow rotating shaft 9 also drives the lateral hollow connecting rods connected to its two sides. 24 rotates synchronously, and the rotating shaft 19 inside the lateral hollow connecting rod 24 moves accordingly. Through the meshing of the second bevel gear 20 and the first bevel gear 18, the rotating shaft 19 is driven to rotate, causing the flipping device to rotate. This causes the first flipping bucket 22 and the second flipping bucket 23 on the flipping bucket fixing frame 21 to alternately scoop up the tea leaves and throw them back onto the frying pan 6 as the rotation progresses, effectively improving the frying efficiency and uniformity. During the frying process, the mesh cover 15, fixed by the mesh cover fixing frame 14 under the supporting crossbar 8, forms a three-dimensional protective structure for the frying pan 6, preventing the tea leaves from splashing during frying. This avoids the hot tea leaves splashing onto personnel, ensuring operational safety, and also avoids the problem of tea leaves falling out and needing to be cleaned and recycled. All units of the machine are uniformly coordinated and scheduled by the control device 25 to realize the automatic linkage control of processes such as heating, clamping, stirring, and flipping. The coordinated operation of "rotating and stirring + shoveling and tossing" effectively overcomes the drawbacks of traditional frying methods, such as uneven frying, easy burning at the bottom, and high manual labor intensity. It has significant benefits such as high heating stability, strong frying uniformity, high degree of automation, and sufficient safety protection, thereby improving the efficiency and quality control of tea roasting and processing.

[0046] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0047] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A roasting apparatus for baking, characterized in that: The machine includes a machine base (1), on which an electric heating plate (2) is installed. Pneumatic clamps are provided on both sides of the electric heating plate (2) on the top of the machine base (1). A stir-frying plate (6) is placed on top of the electric heating plate (2). An electric telescopic rod (7) is installed on top of the machine base (1). A support crossbar (8) is installed on top of the electric telescopic rod (7). A hollow rotating shaft (9) is rotatably mounted on one end of the support crossbar (8) via a bearing. A stirring paddle (10) is installed at the bottom end of the hollow rotating shaft (9). A motor (11) is installed on top of the support crossbar (8). The output end of the motor (11) is connected to a first gear (12). A second gear (13) is fixedly sleeved on the outer side of the hollow shaft (9). A mesh cover fixing frame (14) is installed at the bottom of the support cross frame (8). A mesh cover (15) is installed at the bottom of the mesh cover fixing frame (14). A fixed shaft bracket (16) is installed at the top of the support cross frame (8). A connecting fixed shaft (17) is fixedly installed at the bottom of the fixed shaft bracket (16). The bottom end of the connecting fixed shaft (17) is connected to the first bevel gear (18). A lateral hollow connecting rod (24) is integrally formed on both sides of the hollow shaft (9). A flipping device is rotatably installed on the inner side of the lateral hollow connecting rod (24). A second bevel gear (20) is provided at one end of the flipping device.

2. A roasting apparatus according to claim 1, wherein: The pneumatic clamp includes a clamp bracket (3) mounted on the top of the machine base (1), and a cylinder (4) is mounted on one side of the clamp bracket (3). The piston rod end of the cylinder (4) is fixed to the clamp block (5).

3. A roasting apparatus according to claim 1, wherein: The stirring paddle (10) has two blades, both of which are set at an angle of 45 degrees.

4. A roasting apparatus according to claim 1, wherein: The first gear (12) meshes with the second gear (13), and the second bevel gear (20) meshes with the first bevel gear (18).

5. A roasting apparatus according to claim 1, wherein: The flipping device includes a rotating shaft (19) rotatably connected to the inner side of the lateral hollow connecting rod (24). One end of the rotating shaft (19) is connected to the second bevel gear (20), and one end of the rotating shaft (19) is fixed to the flipping bucket fixing frame (21). The upper and lower ends of one side of the flipping bucket fixing frame (21) are respectively fixedly connected to the first flipping bucket (22) and the second flipping bucket (23).

6. A roasting apparatus according to claim 1, wherein: A control device (25) is installed on the side of the machine (1).

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