Chestnut frying machine control system with material identification function and chestnut frying machine

Abstract

The invention relates to the technical field of chestnut frying machines, and discloses a chestnut frying machine control system with a material identification function and a chestnut frying machine, the chestnut frying machine control system comprises a chestnut frying machine body, a material receiving cabin and a material loading cabin; the material receiving cabin is mounted at a material opening of the chestnut frying machine body and used for receiving fried chestnuts and sand, and a sorting unit used for separating the chestnut sand is arranged in the material receiving cabin. According to the chestnut frying machine control system with the material recognition function and the chestnut frying machine, the recognition module in the feeding bin is combined with the Brazil nut effect generated by the vibration machine to achieve layering of chestnuts according to the size, and the chestnuts of different specifications can be accurately separated in cooperation with the spacing-adjustable limiting rope separation area. Meanwhile, the recycling unit can independently recycle the small Chinese chestnuts and put the small Chinese chestnuts in batches, the problems that the small Chinese chestnuts are too scorched and the large Chinese chestnuts are half-cooked due to mixed stir-frying of the large Chinese chestnuts and the small Chinese chestnuts are avoided, it is guaranteed that each Chinese chestnut is evenly heated, and the taste and quality consistency of finished products are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of chestnut roasting machine technology, specifically to a chestnut roasting machine control system and a chestnut roasting machine with material recognition function. Background Technology

[0002] As a core piece of equipment in the nut roasting and processing industry, chestnut roasting machines are widely used in the commercial roasting of agricultural products such as chestnuts, peanuts, and sunflower seeds. Traditional drum-type chestnut roasting machines heat the rotating drum using a heating device, and the material is turned over by built-in stirring blades or the drum's own rotation, allowing the chestnuts to mix with the high-temperature sand and gravel for heat transfer and achieving a uniform roasting effect. With the development of automation technology, modern chestnut roasting machines have gradually integrated temperature control systems, timing devices, and basic mechanical transmission structures, enabling them to achieve basic automatic roasting and batch processing functions.

[0003] However, existing chestnut roasting machines still have significant technical limitations in the feeding, sorting, and roasting control stages. First, traditional equipment generally lacks intelligent material identification functions, making it impossible to automatically detect and grade key physical characteristics of chestnuts such as particle size, weight, and variety. In actual production, the size differences between different batches of chestnuts are significant. When mixed and fed into the roasting machine, small chestnuts have a larger specific surface area and heat up faster, while large chestnuts have a longer heat conduction path and cook slower. This easily leads to a quality split where "small chestnuts are over-charred and large chestnuts are undercooked and lose their crispness," seriously affecting the taste and commercial consistency of the finished product.

[0004] Secondly, existing technologies have failed to effectively solve the problems of automated sorting and differentiated roasting of chestnuts of different sizes. Most equipment relies on manual sorting or coarse screening using fixed-aperture screens, resulting in low sorting accuracy, low efficiency, and an inability to achieve dynamic control during the roasting process. Furthermore, the control systems of traditional chestnut roasting machines can only provide simple temperature and time settings, failing to automatically match the optimal roasting scheme based on the actual characteristics of the material. This leads to a disconnect between processing parameters and material properties, resulting in high energy consumption and significant quality fluctuations.

[0005] Furthermore, the chestnut separation process after roasting often relies on manual sieving or a single-layer fixed screen with non-adjustable separation shaft spacing. This makes it difficult to simultaneously meet the dual requirements of separating "sand and chestnuts" and "large chestnuts and small chestnuts," resulting in cumbersome subsequent processing steps and limited production efficiency. These issues collectively hinder the development of chestnut roasting machines towards intelligence, precision, and standardization, making it difficult to meet the urgent needs of the modern food industry for high-quality and high-efficiency processing. Summary of the Invention

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a chestnut roasting machine control system and a chestnut roasting machine with material identification function, thereby solving the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a chestnut roasting machine with material identification function, comprising: a chestnut roasting machine body, a receiving chamber, and a feeding chamber; The receiving chamber is installed at the feed inlet of the chestnut roasting machine body and is used to receive roasted chestnuts and sand. The inside of the receiving chamber is equipped with a sorting unit for separating chestnut sand. The feeding chamber is installed above the chestnut roasting machine body via a moving unit for adding chestnuts into the chestnut roasting machine body, and the bottom of the feeding chamber is fixedly connected to an output pipe; the moving unit is used to drive the feeding chamber to move closer to and away from the feed inlet of the chestnut roasting machine body, and when moving closer, the output pipe of the feeding chamber is inserted into the inner cavity of the drum of the chestnut roasting machine body for feeding. The feeding chamber is equipped with an identification module for identifying chestnuts. The identification module is used to identify chestnuts of different sizes and to classify and put chestnuts of different sizes into the chestnut roasting machine body.

[0008] Preferably, the sorting unit includes a sorting rack installed inside the receiving chamber and a pull-out receiving frame installed inside the receiving chamber. The bottom of the sorting rack is fixedly connected to a collection cover, which is used to collect the sorted sand or small chestnuts into the receiving frame.

[0009] Preferably, the sorting frame is provided with a plurality of sorting shafts inside, and sand and chestnuts are sorted through the gaps between the plurality of sorting shafts. The receiving frame is provided with an adjusting component for adjusting the spacing of the plurality of sorting shafts, for sorting sand and chestnuts, as well as for sorting small chestnuts and large chestnuts.

[0010] Preferably, the moving unit includes a moving guide rail and an electric telescopic rod installed above the chestnut roasting machine body. The telescopic end of the electric telescopic rod is fixedly connected to the moving bracket of the moving guide rail, and the moving bracket on the moving guide rail is fixedly connected to the feeding chamber.

[0011] Preferably, the identification module includes two partitions hinged inside the loading chamber and two adjusting cylinders for adjusting the angle of the partitions. The two adjusting cylinders are inclined and hinged between the bottom of the partitions and the inner wall of the loading chamber. Vibrators are fixedly installed at the bottom of both partitions. The two vibrators are used to vibrate the chestnuts of different sizes above the two partitions to separate the large chestnuts and small chestnuts into layers. Several control units are installed between the two partitions, and sorting areas are reserved between each pair of control units for small chestnuts to pass through. The feeding hopper is equipped with a recycling unit for recovering small chestnuts.

[0012] Preferably, the control unit includes a limiting rope installed between two partitions, and the small chestnuts are used to pass through the sorting area between the two limiting ropes for sorting.

[0013] Preferably, the control unit further includes two sets of guide members respectively disposed at the bottom of the partition; The guide includes two movable blocks slidably connected to the bottom of the partition. The bottom of each movable block is rotatably connected to a guide shaft, and the guide shafts in both guides are in contact with the outer surface of the limiting rope, making the limiting rope rectangular. The bottom of the partition is fixedly connected to a spring assembly for squeezing the two movable blocks, which controls the two movable blocks to move apart, so that the limiting rope is in a taut state.

[0014] Preferably, a plurality of infrared counters are installed between the two partitions, the infrared counters being used to monitor the number of chestnuts being fed; an elastic limiting band is fixedly connected between the bottoms of the two partitions, and the elastic limiting band is located in the middle of the rectangular limiting rope, in order to prevent chestnuts from passing through the middle part of the limiting rope.

[0015] Preferably, the recycling unit includes a recycling frame rotatably connected to the feeding chamber via a rotating shaft. One side of the feeding chamber has an opening for inserting the receiving end of the recycling frame into it. A recycling cylinder is hinged between one side of the feeding chamber and the bottom of the recycling frame for adjusting the angle of the recycling frame. The bottom of the recycling frame is equipped with a baffle frame, and a gravity block is installed at the bottom of the baffle frame. The baffle frame is inserted into the inside of the recycling frame to prevent the small chestnuts from flowing out during the adjustment of the recycling frame angle. A limit block is set at the bottom of the baffle frame. When the receiving end of the recycling frame tilts downward, it is used to press against the baffle frame, so that the baffle frame automatically seals the recycling frame and prevents the chestnuts inside the recycling frame from flowing out in the downward tilted state. The inside of the feeding chamber is equipped with an electric drive component for controlling the extension of the limit block.

[0016] A chestnut roasting machine control system with material identification function includes a main control module, a roasting scheme database, an automatic matching module, an execution control module, and an identification and sensing module that is communicatively connected to the main control module. The identification and perception module includes a weighing sensor for collecting total chestnut weight data, a visual recognition camera for acquiring chestnut image data, an identification module for classifying and sorting chestnuts by size, and an infrared counter for monitoring the number of chestnuts being fed. The main control module integrates a data preprocessing unit and a fusion recognition unit: the data preprocessing unit is used to filter and denoise the weight data of the weighing sensor, perform grayscale conversion, edge detection and feature extraction on the image data of the visual recognition camera, and receive the quantity monitoring data of the infrared counter. The execution control module is electrically connected to the main control module, the heating device, stirring device, temperature regulating device, moving unit, regulating cylinder, vibrator, recovery cylinder, electric drive component, and regulating component of the sorting unit of the chestnut roasting machine. It is used to achieve the following control based on the selected roasting parameter set and the instructions from the main control module: The control unit moves the loading chamber to complete the action of approaching the loading chamber or moving away from the resetting chamber. S1. Control and adjust the angle of the partition plate using the cylinder, and work with the vibrator to achieve layered and orderly feeding of chestnuts; S2. Control the linkage of the recovery cylinder and electric drive components to complete the recovery and batch delivery of small chestnuts; S3. Adjust the spacing between the sorting shafts by controlling the adjusting components of the sorting unit to achieve the sorting of sand and chestnuts or chestnuts of different sizes; S4. Control the heating device, stirring device, and temperature regulating device to operate according to the appropriate roasting parameter set to complete the precise roasting of chestnuts.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention provides a chestnut roasting machine control system and a chestnut roasting machine with material identification function, which has the following beneficial effects: This invention achieves precise chestnut sorting and improves roasting uniformity: A recognition module within the feeding chamber, combined with the Brazil nut effect generated by the vibrator, enables chestnuts to be sorted by size. This, along with an adjustable-spacing sorting zone with limiting ropes, accurately separates chestnuts of different sizes. Simultaneously, the recycling unit can separately collect and batch-dispose of smaller chestnuts, avoiding the problem of "small chestnuts overcooked and large chestnuts undercooked" caused by mixing chestnuts of different sizes during roasting. This ensures that each chestnut is heated evenly, significantly improving the consistency of the finished product's taste and quality.

[0018] Highly intelligent, reducing reliance on manual labor: The control system integrates multi-sensor data fusion technology, using weighing sensors, visual recognition cameras, and infrared counters to automatically and accurately detect the weight, size, and quantity of chestnuts, eliminating the need for manual sorting and parameter setting. The automatic matching module can retrieve a suitable roasting parameter set from the database based on the recognition results, and the execution control module coordinates various execution components to complete the fully automated operation of feeding, sorting, and roasting, reducing manual intervention and lowering labor intensity and operational barriers.

[0019] Multifunctional adaptability enhances equipment practicality: The sorting unit, by adjusting the spacing of the sorting shafts, can achieve dual functions of separating "sand-chestnuts" and sorting "large chestnuts-small chestnuts," eliminating the need for additional sieving after roasting and improving processing efficiency; The control unit, through the change of the partition angle and the cooperation of the spring assembly and moving block, can achieve proportional adjustment of the length and width of the sorting area, adapting to the processing needs of different varieties and sizes of chestnuts and broadening the equipment's applicability; The infrared counter combined with weight data can calculate the average weight of a single chestnut, providing data support for optimizing roasting parameters and further improving roasting accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the chestnut roasting machine body of the present invention; Figure 2 This is a cross-sectional view of the chestnut roasting machine body of the present invention; Figure 3 This is a cross-sectional view of the feeding hopper of the present invention; Figure 4 This is a bottom view of the structure of the two partitions of the present invention; Figure 5 For the present invention Figure 4 A magnified view of a section at point A in the middle; Figure 6 This is a schematic diagram of the structure of the recycling unit of the present invention; Figure 7 This is a schematic diagram of the control system for the chestnut roasting machine with material identification function according to the present invention.

[0021] In the picture: 10. Chestnut roasting machine body; 11. Drum; 20. Receiving compartment; 21. Sorting rack; 22. Receiving frame; 23. Collection hood; 30. Feeding hopper; 31. Output pipe; 32. Moving guide rail; 33. Electric telescopic rod; 40. Identification module; 41. Partition plate; 42. Adjusting cylinder; 43. Vibrator; 50. Control unit; 51. Limiting rope; 52. Moving block; 53. Spring assembly; 54. Infrared counter; 55. Elastic limit band; 60. Recycling unit; 61. Recycling frame; 62. Recycling cylinder; 63. Baffle frame; 64. Limit block; 65. Electric drive component. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1: See attached document Figures 1 to 6 A chestnut roasting machine with material identification function includes: a chestnut roasting machine body 10, a receiving chamber 20 and a feeding chamber 30; the receiving chamber 20 is installed at the material inlet of the chestnut roasting machine body 10 and is used to receive roasted chestnuts and sand, and the receiving chamber 20 is provided with a sorting unit for separating chestnut sand. The chestnut roasting machine body 10 adopts the existing drum-type chestnut roasting machine equipment, which is used to add roasted goods such as sunflower seeds, peanuts, chestnuts, etc. to the drum 11; by heating the drum 11 and driving the drum 11 to rotate, the roasting of the goods is uniform; and by setting up a sorting unit, the materials after roasting are sorted. The feeding chamber 30 is installed above the chestnut roasting machine body 10 via a moving unit for adding chestnuts into the chestnut roasting machine body 10. The bottom of the feeding chamber 30 is fixedly connected to the output pipe 31. The moving unit is used to drive the feeding chamber 30 to move closer to and away from the material inlet of the chestnut roasting machine body 10. When moving closer, the output pipe 31 of the feeding chamber 30 is inserted into the inner cavity of the drum 11 of the chestnut roasting machine body 10 for feeding. The feeding chamber 30 is used to store the roasted material. The output end of the feeding chamber 30 is inserted into the roasting chestnut machine by the moving unit, forming an orderly feeding operation. There is no need for manual feeding, which improves the convenience and safety of operation. The feeding chamber 30 is equipped with an identification module 40 for identifying chestnuts. The identification module 40 is used to identify chestnuts of different sizes and to classify and put chestnuts of different sizes into the chestnut roasting machine body 10 after identification. The identification module 40 can identify chestnuts of different sizes or weights inside the feeding chamber 30, so as to control the heating time and temperature according to the different chestnuts, thereby improving the chestnut roasting effect. In addition, the identification module 40 can also sort chestnuts of different sizes and feed them in batches according to different sizes, thus avoiding the problem of over-roasting or under-roasting caused by putting chestnuts of different sizes into the chestnut roasting machine at the same time.

[0024] See attached document Figure 2 The sorting unit includes a sorting frame 21 installed inside the receiving chamber 20 and a pull-out receiving frame 22 installed inside the receiving chamber 20; a collection cover 23 is fixedly connected to the bottom of the sorting frame 21, and the collection cover 23 is used to collect the sorted sand or small chestnuts into the receiving frame 22. The receiving frame 22 is used to receive the sorted sand or to receive small chestnuts from chestnuts of different sizes. The collecting cover 23 is used to improve the receiving effect of the receiving frame 22 and prevent leakage.

[0025] See attached document Figure 2 The sorting frame 21 has several sorting shafts inside, which separate sand and chestnuts through the gaps between the sorting shafts. The receiving frame 22 has an adjusting component inside for adjusting the spacing between the sorting shafts, which is used for sorting sand and chestnuts as well as for sorting small chestnuts and large chestnuts. The adjusting component uses existing technology to synchronously adjust several sorting shafts using cylinders or lead screws, which increases or decreases the distance between the sorting shafts, thus enabling the sorting of sand and chestnuts or the sorting of large and small chestnuts, further improving the applicability of the chestnut roasting machine.

[0026] See attached document Figure 2 The moving unit includes a moving guide rail 32 and an electric telescopic rod 33 installed above the chestnut roasting machine body 10. The telescopic end of the electric telescopic rod 33 is fixedly connected to the moving bracket of the moving guide rail 32, and the moving bracket on the moving guide rail 32 is fixedly connected to the feeding chamber 30. The electric telescopic rod 33 is connected to the control system using existing connection and control methods. It is used to move the feeding chamber 30 by moving the support, so that the output pipe 31 at the bottom of the feeding chamber 30 is inserted into the drum 11 of the chestnut roasting machine, forming an orderly material feeding operation. Conversely, by driving the feeding chamber 30 to move in the opposite direction, the output pipe 31 can be moved away from the inside of the drum 11, forming an orderly roasting operation and subsequent material discharge operation.

[0027] See attached document Figure 3 and Figure 4 The identification module 40 includes two partitions 41 hinged inside the feeding chamber 30 and two adjusting cylinders 42 for adjusting the angle of the partitions 41. The two adjusting cylinders 42 are inclined and hinged between the bottom of the partitions 41 and the inner wall of the feeding chamber 30. Vibrators 43 are fixedly installed at the bottom of each of the two partitions 41. The two vibrators 43 are used to vibrate the chestnuts of different sizes above the two partitions 41 to make the large chestnuts and small chestnuts separate into upper and lower layers. Several control units 50 are installed between the two partitions 41. A sorting area for small chestnuts to pass through is reserved between each pair of control units 50. The feeding chamber 30 is equipped with a recycling unit 60 for recycling small chestnuts. The adjusting cylinder 42 is connected to an external power supply and control switch to drive the partition 41 to adjust its angle. When the two partitions 41 are in a horizontal state, they form a support structure for storing chestnuts inside the feeding chamber 30. The downward tilting motion of the partitions 41 causes the stored chestnuts to move downwards, cooperating with the output pipe 31 for feeding. The vibrator 43 adopts a vibration mechanism from the prior art, using existing connection and control methods. It is used to vibrate chestnuts of different sizes above the partitions 41, causing them to be layered using the Brazil nut effect, forming a preliminary layer of chestnuts of different sizes. The first step of sorting improves the convenience and efficiency of subsequent fine selection and separation. A sorting zone is set up through two control units 50, used to sort chestnuts. The control unit 50 is used to proportionally increase or decrease the size of the sorting zone, thus accommodating the sorting of chestnuts of different sizes. The recycling unit 60 is used to recycle small chestnuts from the chestnuts of different sizes stored inside the feeding chamber 30, preventing chestnuts of different sizes from being simultaneously placed in the chestnut roasting machine for roasting, which would make it difficult to control the heating time and temperature, easily leading to overheating of small chestnuts or underheating of large chestnuts.

[0028] See attached document Figure 5 The control unit 50 includes a limiting rope 51 installed between two partitions 41, and the small chestnuts are used to pass through the sorting area between the two limiting ropes 51 for sorting. The number of limiting ropes 51 is several, which are used to be equally spaced between the two partitions 41. The rectangular gap formed between the two partitions 41 is divided into several small rectangular holes by the limiting ropes 51, which facilitates the passage of individual chestnuts. This makes it easier to sort chestnuts of different sizes and collect the number of chestnuts during sorting.

[0029] See attached document Figure 5 The control unit 50 also includes two sets of guide members respectively disposed at the bottom of the partition 41; the guide members include two movable blocks 52 slidably connected to the bottom of the partition 41, the bottom of each of the two movable blocks 52 is rotatably connected to a guide shaft, and the guide shafts in the two guide members are in contact with the outer surface of the limiting rope 51, so that the limiting rope 51 is rectangular; the bottom of the partition 41 is fixedly connected to a spring assembly 53 for squeezing the two movable blocks 52, which is used to control the two movable blocks 52 to move away from each other, so that the limiting rope 51 is in a taut state; By using the moving block 52, guide shaft, and spring assembly 53, the unfolding state of the limiting rope 51 can be changed, thus enabling the sorting of chestnuts of different sizes. Specifically, as the two partitions 41 move downwards continuously, the distance between them gradually increases. Since the limiting rope 51 is at a fixed length, when the distance between the two partitions 41 increases, the two moving blocks 52 can move relative to each other, causing the rectangular length of the limiting rope 51 to gradually increase, while the width gradually decreases. This results in a gradual increase in the distance between adjacent limiting ropes 51, proportionally enlarging the length and width of the sorting area of ​​the control unit 50, making it suitable for sorting and exporting large chestnuts. Conversely, when the distance between adjacent limiting ropes 51 gradually decreases, it is suitable for sorting and exporting small chestnuts. This solves the problem that existing control structures can only adjust a single range of the sorting area, such as the length or width, making it difficult to identify and detect the quantity of chestnuts being processed.

[0030] Example 2: The difference from Example 1 is that; See attached document Figure 5 Several infrared counters 54 are installed between the two partitions 41. The infrared counters 54 are installed between the two limit ropes 51. The infrared counters 54 are used to monitor the number of chestnuts fed. By collecting the number of chestnuts fed, and combining it with the total mass of chestnuts divided by the number of chestnuts, the weight of a single chestnut can be known. Finally, by knowing the weight of a single chestnut, the size of the chestnut can be known, which forms the control of different processing times and temperatures in the future. An elastic limiting band 55 is fixedly connected between the bottoms of the two partitions 41, and the elastic limiting band 55 is located in the middle of the rectangular limiting rope 51 to prevent the chestnut from passing through the middle part of the limiting rope 51. When the distance between the two partitions 41 decreases, the internal gap hole of the limiting rope 51 will increase. The elastic limiting band 55 blocks the internal gap hole of the limiting rope 51 to prevent the chestnut from passing directly through the gap hole as the limiting rope 51 increases, causing the infrared counter 54 to be unable to collect data at this position, thus affecting the accuracy of subsequent metal detection.

[0031] Example 3: The difference from Example 1 is that; See attached document Figure 3 and Figure 6 The recycling unit 60 includes a recycling frame 61 rotatably connected to the loading chamber 30 via a rotating shaft. A movable opening is provided on one side of the loading chamber 30 for inserting the receiving end of the recycling frame 61 into it. A recycling cylinder 62 is hinged between one side of the loading chamber 30 and the bottom of the recycling frame 61 for adjusting the angle of the recycling frame 61. The recycling box 61 is used to receive small chestnuts identified by the identification module 40, preventing chestnuts of different sizes from being over-roasted when placed into the chestnut roasting machine simultaneously. The recycling cylinder 62 can drive the receiving end of the recycling box 61 to move up and down in a fan shape. The upward movement of the receiving end of the recycling box 61 can pull it closer to the two partitions 41, improving the reception effect of small chestnuts. Conversely, the downward movement of the receiving end can move it away from the distance between the two partitions 41 and move it away from the receiving area. This not only allows the sorted large chestnuts to directly enter the chestnut roasting machine through the output pipe 31 for roasting, but also allows the small chestnuts inside the recycling box 61 to be transported through the output pipe 31 to the large chestnuts that have been roasted for a certain period of time, forming a joint roasting operation and satisfying the synchronous roasting of chestnuts of different sizes. A baffle frame 63 is provided at the bottom of the recycling frame 61. A gravity block is installed at the bottom of the baffle frame 63, and the baffle frame 63 is inserted into the inside of the recycling frame 61. It is used to prevent the small pumps to be recycled from flowing out during the angle adjustment of the recycling frame 61. A limit block 64 is provided at the bottom of the baffle frame 63. When the receiving end of the recycling frame 61 tilts downward, it is used to press against the baffle frame 63, so that the baffle frame 63 automatically blocks the recycling frame 61 and prevents the pumps inside the recycling frame 61 from flowing out in the downward tilted state. An electric drive unit 65 is provided inside the feeding chamber 30 for controlling the extension of the limit block 64. A gravity block is installed at the bottom of the baffle frame 63, which facilitates the movement of the baffle frame 63 out of the inside of the recycling frame 61. This opens the receiving end of the recycling frame 61, allowing the small chestnuts sorted above the partition 41 to directly enter the recycling frame 61 for storage. The limiting block 64 is set up to allow the larger chestnuts above the partition 41 to be discharged after the baffle frame 63 has completely received the small chestnuts. At this time, the downward movement of the receiving end of the recycling frame 61 allows the falling large chestnuts to directly enter the drum 11 of the chestnut roasting machine through the output pipe 31. However, the downward movement of the receiving end of the recycling frame 61 can easily cause the loss of small chestnuts. Therefore, the limiting block 64 limits the baffle frame 63, which moves downward in sync, to prevent the recycling frame 61 from receiving the large chestnuts. When the end moves downwards, the baffle frame 63 will not move, thus inserting the baffle frame 63 into the recycling frame 61 to prevent the small chestnuts from being lost. The electric drive component 65 includes, but is not limited to, a cylinder or other electric components that extend the limit block 64. After the limit block 64 is retracted by the electric drive component 65, it loses its limit on the baffle frame 63, thus ensuring that the receiving end of the recycling frame 61 tilts downwards, so that the small chestnuts inside the recycling frame 61 can be exported. The small chestnuts are then placed into the large chestnuts that have been roasted for a certain period of time through the output pipe 31, forming a batch feeding operation. This solves the problem that when chestnuts of different sizes are placed into the chestnut roasting machine at the same time due to the different heating time and temperature, the skin of the small chestnuts is easily over-burned and the inside loses too much moisture, resulting in a dry and hard texture.

[0032] A chestnut roasting machine control system with material identification function includes a main control module, a roasting scheme database, an automatic matching module, an execution control module, and an identification and sensing module that is communicatively connected to the main control module. The identification and perception module includes a weighing sensor, a visual recognition camera, an identification module 40, and an infrared counter 54. The weighing sensor is installed in the feeding chamber 30 or inside the drum 11 of the chestnut roasting machine body 10 to collect the total weight data of the chestnuts. The visual recognition camera is installed inside the feeding chamber 30 to acquire image data of the chestnuts, including the size, color, shape, and surface texture features of the chestnuts. The identification module 40 is used to achieve layering and sorting of chestnuts by size, and the infrared counter 54 is used to monitor the number of chestnuts fed. The roasting scheme database is stored in the memory of the main control module. It contains multiple sets of roasting parameters that match different chestnut sizes, quantities, and varieties. The roasting parameter sets include roasting temperature curves, stirring speed, heating time, preheating time, heat preservation temperature, and cooling rate. The main control module integrates a data preprocessing unit and a fusion recognition unit: the data preprocessing unit is used to filter and denoise the weight data from the weighing sensor, perform grayscale conversion, edge detection, and feature extraction on the image data from the visual recognition camera, and simultaneously receive quantity monitoring data from the infrared counter 54; the fusion recognition unit adopts a multi-sensor data fusion algorithm to comprehensively analyze the weight data, image feature data, and quantity monitoring data to accurately identify the type and size classification of chestnuts and calculate the average weight of a single chestnut. The multi-sensor data fusion algorithm includes: identifying chestnut varieties through image data and establishing a chestnut size distribution model; Combining weight data and size distribution model, the number of chestnuts is calculated using the formula N=K·M / (ρ·V), where N is the number, M is the total weight, V is the average volume of a single chestnut, ρ is the density correction factor, and K is the roasting filling factor.

[0033] The set of frying parameters includes: frying temperature curve, stirring speed, heating time, preheating time, holding temperature, and cooling rate.

[0034] The automatic matching module is integrated into the main control module and is used to automatically select the appropriate roasting parameter set from the roasting scheme database based on the chestnut physical characteristic parameters (type, size grade, quantity, average weight per chestnut) output by the fusion recognition unit. The execution control module is electrically connected to the main control module, the heating device, stirring device, temperature regulating device and moving unit of the chestnut roasting machine, the regulating cylinder 42, the vibrator 43, the recovery cylinder 62, the electric drive component 65, and the regulating component of the sorting unit, respectively. It is used to realize the following control according to the selected roasting parameter set and the instructions of the main control module: The control unit drives the loading chamber 30 to complete the action of approaching the loading chamber or moving away from the resetting chamber. S1. Control and adjust the angle of the partition plate 41 by the control and adjustment cylinder 42, and cooperate with the vibrator 43 to realize the layering and orderly feeding of chestnuts; S2, control the linkage of recovery cylinder 62 and electric drive component 65 to complete the recovery and batch delivery of small chestnuts; S3. Adjust the spacing between the sorting shafts by controlling the adjusting components of the sorting unit to achieve the sorting of sand and chestnuts or chestnuts of different sizes; S4. Control the heating device, stirring device, and temperature regulating device to operate according to the appropriate roasting parameter set to complete the precise roasting of chestnuts.

[0035] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A chestnut roasting machine with material identification function, characterized in that, include: The chestnut roasting machine body, receiving chamber, and feeding chamber; The receiving chamber is installed at the feed inlet of the chestnut roasting machine body and is used to receive roasted chestnuts and sand. The inside of the receiving chamber is equipped with a sorting unit for separating chestnut sand. The feeding chamber is installed above the chestnut roasting machine body via a moving unit for adding chestnuts into the chestnut roasting machine body, and the bottom of the feeding chamber is fixedly connected to an output pipe; the moving unit is used to drive the feeding chamber to move closer to and away from the feed inlet of the chestnut roasting machine body, and when moving closer, the output pipe of the feeding chamber is inserted into the inner cavity of the drum of the chestnut roasting machine body for feeding. The feeding chamber is equipped with an identification module for identifying chestnuts. The identification module is used to identify chestnuts of different sizes and to classify and put chestnuts of different sizes into the chestnut roasting machine body.

2. The chestnut roasting machine with material identification function according to claim 1, characterized in that: The sorting unit includes a sorting rack installed inside the receiving chamber and a pull-out receiving frame installed inside the receiving chamber. The bottom of the sorting rack is fixedly connected to a collection cover, which is used to collect the sorted sand or small chestnuts into the receiving frame.

3. A chestnut roasting machine with material identification function according to claim 2, characterized in that: The sorting frame is equipped with several sorting shafts inside, which separate sand and chestnuts through the gaps between the sorting shafts. The receiving frame is equipped with an adjusting device for adjusting the spacing between the sorting shafts, which is used for sorting sand and chestnuts, as well as for sorting small chestnuts and large chestnuts.

4. A chestnut roasting machine with material identification function according to claim 1, characterized in that: The moving unit includes a moving guide rail and an electric telescopic rod installed above the chestnut roasting machine body. The telescopic end of the electric telescopic rod is fixedly connected to the moving bracket of the moving guide rail, and the moving bracket on the moving guide rail is fixedly connected to the feeding chamber.

5. A chestnut roasting machine with material identification function according to claim 1, characterized in that: The identification module includes two partitions hinged inside the loading chamber and two adjusting cylinders for adjusting the angle of the partitions. The two adjusting cylinders are inclined and hinged between the bottom of the partitions and the inner wall of the loading chamber. Vibrators are fixedly installed at the bottom of both partitions. The two vibrators are used to vibrate the chestnuts of different sizes above the two partitions to separate the large chestnuts and small chestnuts into layers. Several control units are installed between the two partitions, and sorting areas are reserved between each pair of control units for small chestnuts to pass through. The feeding hopper is equipped with a recycling unit for recovering small chestnuts.

6. A chestnut roasting machine with material identification function according to claim 5, characterized in that: The control unit includes a limiting rope installed between two partitions, and small chestnuts are used to pass through the sorting zone between the two limiting ropes for sorting.

7. A chestnut roasting machine with material identification function according to claim 6, characterized in that: The control unit also includes two sets of guides respectively disposed at the bottom of the partition; The guide includes two movable blocks slidably connected to the bottom of the partition. The bottom of each movable block is rotatably connected to a guide shaft, and the guide shafts in both guides are in contact with the outer surface of the limiting rope, making the limiting rope rectangular. The bottom of the partition is fixedly connected to a spring assembly for squeezing the two movable blocks, which controls the two movable blocks to move apart, so that the limiting rope is in a taut state.

8. A chestnut roasting machine with material identification function according to claim 7, characterized in that: Several infrared counters are installed between the two partitions to monitor the number of chestnuts being fed. An elastic limiting band is fixedly connected between the bottoms of the two partitions, and the elastic limiting band is located in the middle of the rectangular limiting rope to prevent chestnuts from passing through the middle of the limiting rope.

9. A chestnut roasting machine with material identification function according to claim 8, characterized in that: The recycling unit includes a recycling frame rotatably connected to the feeding chamber via a rotating shaft. A movable opening is provided on one side of the feeding chamber for inserting the receiving end of the recycling frame into it. A recycling cylinder is hinged between one side of the feeding chamber and the bottom of the recycling frame for adjusting the angle of the recycling frame. The bottom of the recycling frame is equipped with a baffle frame, and a gravity block is installed at the bottom of the baffle frame. The baffle frame is inserted into the inside of the recycling frame to prevent the small chestnuts from flowing out during the adjustment of the recycling frame angle. A limit block is set at the bottom of the baffle frame. When the receiving end of the recycling frame tilts downward, it is used to press against the baffle frame, so that the baffle frame automatically seals the recycling frame and prevents the chestnuts inside the recycling frame from flowing out in the downward tilted state. The inside of the feeding chamber is equipped with an electric drive component for controlling the extension of the limit block.

10. A chestnut roasting machine control system with material identification function as described in claims 1-9, characterized in that: It includes a main control module, a cooking scheme database, an automatic matching module, an execution control module, and an identification and perception module that communicates with the main control module; The identification and perception module includes a weighing sensor for collecting total chestnut weight data, a visual recognition camera for acquiring chestnut image data, an identification module for classifying and sorting chestnuts by size, and an infrared counter for monitoring the number of chestnuts being fed. The main control module integrates a data preprocessing unit and a fusion recognition unit: the data preprocessing unit is used to filter and denoise the weight data of the weighing sensor, perform grayscale conversion, edge detection and feature extraction on the image data of the visual recognition camera, and receive the quantity monitoring data of the infrared counter. The execution control module is electrically connected to the main control module, the heating device, stirring device, temperature regulating device, moving unit, regulating cylinder, vibrator, recovery cylinder, electric drive component, and regulating component of the sorting unit of the chestnut roasting machine. It is used to achieve the following control based on the selected roasting parameter set and the instructions from the main control module: The control unit moves the loading chamber to complete the action of approaching the loading chamber or moving away from the resetting chamber. S1. Control and adjust the angle of the partition plate using the cylinder, and work with the vibrator to achieve layered and orderly feeding of chestnuts; S2. Control the linkage of the recovery cylinder and electric drive components to complete the recovery and batch delivery of small chestnuts; S3. Adjust the spacing between the sorting shafts by controlling the adjusting components of the sorting unit to achieve the sorting of sand and chestnuts or chestnuts of different sizes; S4. Control the heating device, stirring device, and temperature regulating device to operate according to the appropriate roasting parameter set to complete the precise roasting of chestnuts.

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