Grain frying machine

Abstract

The utility model discloses a grain stir-frying machine, relates to the field of grain processing equipment, and aims to improve the heat utilization rate and the heating uniformity. The grain stir-frying machine comprises a rack, a stir-frying barrel, a driving device and a heating device, the heating device comprises a soaking layer, a heat preservation layer and a heating coil. The soaking layer of the heating device can enable heat generated by the heating coil to be more uniformly distributed and transmitted to the side wall of the stir-frying cavity, so that the temperature gradient is reduced, and the stir-fried grains in the stir-frying cavity are ensured to be uniformly heated; the heat preservation layer of the heating device can effectively prevent heat generated by the heating coil from being transmitted outwards from the frying barrel, heat loss is reduced, the heat utilization rate of equipment is improved, and energy consumption is reduced; the heating coil not only can generate heat, but also has a spiral structure with at least three turns, so that heat can be uniformly emitted, the temperature uniformity of each part of the side wall of the stir-frying cavity is further improved, the stir-frying barrel can reach a stable working temperature more quickly, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of grain processing equipment, in particular to a grain frying machine. Background Art

[0002] In China, winemaking has a long history. Different grain raw materials play different roles in the winemaking process and also affect the flavor and quality of the wine. Common grains include sorghum, wheat, corn, rice and barley. Each grain has its own unique flavor and nutritional components, which will be reflected in the wine. For example, highland barley, a cereal crop of the genus Hordeum in the Poaceae family, contains beneficial health ingredients including β-glucan and γ-aminobutyric acid, which can be preserved in the wine through distillation during the winemaking process.

[0003] In order to gelatinize the grains and ferment wine with unique aroma and flavor, some current winemaking processes require the grains to be fried before fermentation. Usually, there are two ways: manual frying and machine frying. Machine frying is generally performed by a grain frying machine. Existing grain frying machines generally include a frame, a frying cylinder rotatably arranged on the frame, a driving motor connected to the frying cylinder, and a heating device for heating the frying cylinder, and the heating device generally includes a plurality of heating tubes.

[0004] Although the existing grain frying machines can provide sufficient heat source for frying through multiple heating tubes, they have problems such as low heat utilization rate and high energy consumption. There is also the problem of uneven heating, which will cause some grains to be overheated and burnt during the frying process, while other parts will not be heated enough. The burnt grains may introduce harmful substances and affect the quality of the wine. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a grain frying machine with high heat utilization rate and more uniform heating.

[0006] The utility model solves the technical problem by adopting the following technical solution: a grain frying machine comprises a frame, a frying cylinder, a driving device and a heating device;

[0007] The frying cylinder has a frying cavity and a feeding cavity which are connected to each other, and the frying cylinder is rotatably arranged on the frame;

[0008] The driving device is connected to the frying cylinder through a transmission mechanism, and is used to drive the frying cylinder to rotate;

[0009] The heating device comprises a heat-saturating layer, a heat-insulating layer and a heating coil;

[0010] The heat-equalizing layer is wrapped and arranged on the outer peripheral surface of the frying cylinder corresponding to the frying cavity;

[0011] The heat-insulating layer is wrapped and arranged on the outer peripheral surface of the heat-averaging layer;

[0012] A mounting groove is arranged on at least one matching surface between the heat-averaging layer and the heat-insulating layer. The heating coil is spirally wound in the mounting groove with the axis of the frying tube as the center line for at least three turns.

[0013] Furthermore, the turns of the heating coil are arranged at equal intervals;

[0014] The frontmost turn of the heating coil corresponds to the front end of the frying cavity, and the rearmost turn of the heating coil corresponds to the rear end of the frying cavity.

[0015] Furthermore, the frame includes supporting legs, and a vibration-damping base plate is provided at the lower end of the supporting legs.

[0016] Furthermore, at least one group of rollers is provided at the rear end of the frame, and the roller group includes a first roller and a second roller which are spaced apart from each other on the left and right sides; the first roller and the second roller are respectively supported on the lower left and lower right parts of the stir-frying cylinder, and both are in rolling cooperation with the stir-frying cylinder;

[0017] At least one support arm is provided at the front end of the frame, and a coupling seat is provided on the support arm;

[0018] The front end of the frying tube is provided with a head cover with a convex arc surface structure, the outer surface of the head cover is provided with a coupling plate, the coupling plate is provided with a main shaft coaxial with the frying tube, and the main shaft is rotatably connected to the coupling seat.

[0019] Furthermore, a reinforcement layer is provided at a portion of the frying cylinder that is in contact with the first roller and / or the second roller.

[0020] Furthermore, the driving device includes a driving motor and a reducer, and the power input end of the reducer is drivingly connected to the power output end of the driving motor.

[0021] Furthermore, the driving device also includes a protective cover that covers the driving motor and the reducer.

[0022] Furthermore, the transmission mechanism includes a driving wheel arranged on the power output end of the reducer, a driven wheel arranged on the main shaft, and a power transmission member wound around the driving wheel and the driven wheel.

[0023] Furthermore, the reducer is a cycloid pinwheel reducer;

[0024] The driving wheel and the driven wheel are both sprockets, and the power transmission member is a chain.

[0025] Furthermore, the grain frying machine also includes a heating power supply device, and the heating power supply device includes a conductive slip ring and a brush;

[0026] The conductive slip ring is mounted on the main shaft through an insulating member and is electrically connected to the heating coil;

[0027] The brush is fixedly arranged and in sliding contact with the conductive slip ring.

[0028] The beneficial effects of the utility model are as follows: the heat-averaging layer of the heating device can make the heat generated by the heating coil more evenly distributed and transferred to the side wall of the frying cylinder corresponding to the frying cavity, reducing the temperature gradient to ensure that the fried grains in the frying cavity are heated evenly, avoiding local overheating or overcooling, thereby improving the quality of frying; the heat-insulating layer of the heating device can effectively prevent the heat generated by the heating coil from being transferred outward from the frying cylinder, reducing heat loss, improving the thermal utilization rate of the equipment, and reducing energy consumption; the heating coil can not only generate heat, but also has a spiral structure of at least three turns, which can generate heat evenly, further improving the uniformity of the temperature at various locations on the side wall of the frying cavity, and also helping the frying cylinder to reach a stable working temperature faster, reducing the preheating time, and improving production efficiency.

[0029] The technical effects brought about or directly produced by other technical features of the utility model will be described in detail in the subsequent specific implementation method section. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the implementation structure of the utility model;

[0031] Figure 2 yes Figure 1 A partial enlarged view of the P in the middle;

[0032] Figure 3 is along Figure 1 Sectional view along line AA;

[0033] The following are marked in the figure: frame 100, supporting legs 110, vibration-damping base plate 111, supporting arms 120, coupling seat 130, first roller 141, second roller 142, frying tube 200, frying chamber 201, reinforcing layer 202, head cover 210, coupling plate 220, main shaft 230, driving device 300, driving motor 310, reducer 320, heating device 400, heat-averaging layer 410, insulation layer 420, heating coil 430, driving wheel 510, driven wheel 520, power transmission member 530, conductive slip ring 610. DETAILED DESCRIPTION

[0034] The utility model is further described below in conjunction with the accompanying drawings. The same reference numerals in the accompanying drawings represent components with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positions, and dimensional relationships based on the directions or position relationships shown in the accompanying drawings, and are only for the convenience of description, and do not indicate or imply that the referred device or component must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] The term "transmission connection" refers to a connection method used to transmit power or motion in a mechanical system, for example: a connection method achieved through a transmission mechanism such as a coupling, a reducer, a gear assembly, a worm gear assembly, etc. The term "rotatably arranged or connected" refers to a connection method between two parts so that one of the parts can rotate relative to the other part; this connection method is usually achieved using mechanical components such as bearings, sleeves, and shaft hole fits. When the term "multiple" indicates a quantity, it usually refers to a quantity of three or more, for example: "multiple" usually refers to three or more. The expression "mainly composed of..." is interpreted as also containing structural components not mentioned in the sentence. The term "and / or" is merely an association relationship that describes the associated objects, indicating that there can be three relationships, for example: A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] Combination Figure 1 , Figure 2 and Figure 3 As shown, the grain frying machine includes a frame 100, a frying cylinder 200, a driving device 300 and a heating device 400;

[0038] The frame 100 is a supporting component of the grain frying machine, which is mainly used to install and support other components and maintain the position of the entire machine;

[0039] The frying cylinder 200 is a component of the grain frying machine for containing and frying grains. The frying cylinder 200 has a frying cavity 201 and a feeding cavity that are connected to each other. The frying cylinder 200 is rotatably arranged on the frame 100.

[0040] The driving device 300 is connected to the stir-frying cylinder 200 through a transmission mechanism, and is used to drive the stir-frying cylinder 200 to rotate; the driving device 300 can be a motor or a motor assembly, a cylinder assembly, a cylinder assembly, etc.; the transmission mechanism can be a gear transmission mechanism, a belt transmission mechanism, a chain transmission mechanism, etc.

[0041] The heating device 400 is a component of the grain frying machine that generates heat, and is used to evaporate the moisture in the grain to be fried and fry it to gelatinize; the heating device 400 includes a heat-averaging layer 410, a heat-insulating layer 420, and a heating coil 430;

[0042] The heat-averaging layer 410 is wrapped and arranged on the outer peripheral surface of the stir-frying cylinder 200 corresponding to the stir-frying cavity 201; the heat-averaging layer 410 can make the heat generated by the heating coil 430 more evenly distributed and transferred to the side wall of the stir-frying cylinder 200 corresponding to the stir-frying cavity 201, so as to reduce the temperature gradient, ensure that the stir-fried grains in the stir-frying cavity 201 are heated evenly, and avoid local overheating or overcooling; the heat-averaging layer 410 is usually made of a material with a thermal conductivity higher than 150W / m·K, such as copper or copper alloy, aluminum or aluminum alloy, etc.

[0043] The heat-insulating layer 420 is wrapped around the outer circumference of the heat-averaging layer 410; the heat-insulating layer 420 can effectively prevent the heat generated by the heating coil 430 from being transferred outward from the frying tube 200, reduce heat loss, improve the heat utilization rate of the equipment, and reduce energy consumption; the heat-insulating layer 420 is usually made of high-temperature resistant heat-insulating materials, such as ceramic fiber, graphite felt, heat-insulating cotton, etc.

[0044] A mounting groove is provided on at least one mating surface between the heat-averaging layer 410 and the heat-insulating layer 420. The heating coil 430 is spirally wound at least three times in the mounting groove with the axis of the stir-frying tube 200 as the center line. The heating coil 430 can not only generate heat, but also has a spiral structure with at least three turns, which can generate heat evenly, further improve the temperature uniformity of each part of the side wall of the stir-frying cavity 201, and also help the stir-frying tube 200 to reach a stable working temperature faster, reduce the preheating time, and improve production efficiency. The structure of the mounting groove can be various, such as: cylindrical groove, spiral groove, grid groove, etc. The mounting groove can be opened on the outer peripheral surface of the heat-averaging layer 410, or opened on the inner peripheral surface of the heat-insulating layer 420, or formed by the half grooves opened on the outer peripheral surface of the heat-averaging layer 410 and opened on the inner peripheral surface of the heat-insulating layer 420.

[0045] Combination Figure 1 and Figure 2As shown, in some embodiments of the present invention, the turns of the heating coil 430 are arranged at equal intervals; the turn of the heating coil 430 at the front side corresponds to the front end of the stir-frying cavity 201, and the turn of the heating coil 430 at the rear side corresponds to the rear end of the stir-frying cavity 201. In this way, the heating coil 430 can be distributed more orderly and evenly on the outside of the stir-frying cavity 201, so as to further improve the uniformity of heating.

[0046] Combination Figure 1 and Figure 3 As shown, in some embodiments of the utility model, the frame 100 includes a support leg 110, and a vibration-damping base plate 111 is provided at the lower end of the support leg 110; the vibration-damping base plate 111 can reduce the vibration generated during the operation of the grain frying machine to ensure its working stability while reducing the noise generated.

[0047] Recombination Figure 1 and Figure 3 As shown, in some embodiments of the utility model, at least one group of roller groups is provided at the rear end of the frame 100, and the roller group includes a first roller 141 and a second roller 142 that are spaced apart on the left and right sides; the first roller 141 and the second roller 142 are respectively supported on the lower left and lower right parts of the frying tube 200, and both are rollingly matched with the frying tube 200; at least one support arm 120 is provided at the front end of the frame 100, and a coupling seat 130 is provided on the support arm 120; a head cover 210 with a convex arc structure is provided at the front end of the frying tube 200, and a coupling plate 220 is provided on the outer surface of the head cover 210, and a main shaft 230 coaxial with the frying tube 200 is provided on the coupling plate 220, and the main shaft 230 is rotatably connected to the coupling seat 130.

[0048] The stir-frying cylinder 200 is supported and installed in the above manner, which is not only stable and reliable, but also can increase the amount of stir-frying materials in a single time, thereby improving the operating efficiency and service life of the machine. Among them, one, two or more support arms 120 can be provided as needed, and the coupling seat 130 can generally be rotatably matched with the main shaft 230 through an axial hole, a sleeve or a bearing, and the coupling seat 130 is preferably a bearing seat with a bearing. The roller group can be provided in one, two or more groups as needed, and the first roller 141 and the second roller 142 are both rotatably arranged rollers, and the spacing between the first roller 141 and the second roller 142 in the same group is smaller than the outer diameter of the stir-frying cylinder 200. The head cover 210 is mainly used to close the front end of the stir-frying cylinder 200, and its convex arc surface structure can ensure that it has a high structural strength and load-bearing capacity. The coupling plate 220 is mainly used to adapt to the curvature of the head cover 210 to facilitate the installation of the main shaft 230; the coupling plate 220 is usually fixedly installed on the outer surface of the head cover 210, or is made into a structure integrated with the head cover 210; the main shaft 230 is mainly used to support and drive the frying tube 200 to rotate; in order to strengthen the structure, a plurality of reinforcing plates are usually evenly distributed between the main shaft 230 and the coupling plate 220.

[0049] For example Figure 1 As shown, in some embodiments of the present invention, a reinforcement layer 202 is provided at the portion of the stir-frying cylinder 200 that contacts the first roller 141 and / or the second roller 142 to reduce the wear of the stir-frying cylinder 200 and increase the service life. The reinforcement layer 202 is usually made of wear-resistant material or friction-reducing material, such as chrome alloy steel, aluminum oxide ceramic, ceramic coating, etc.

[0050] For example Figure 1 As shown, in some embodiments of the present invention, the driving device 300 includes a driving motor 310 and a reducer 320, and the power input end of the reducer 320 is connected to the power output end of the driving motor 310 to adjust the output speed and provide a greater power output. The reducer 320 can be of various types, preferably a cycloidal pinwheel reducer; the cycloidal pinwheel reducer has the advantages of high transmission efficiency, stable operation, strong load-bearing capacity, high precision, compact structure and long life, and is particularly suitable for auxiliary driving the frying tube 200 to rotate.

[0051] In some embodiments of the present invention, the driving device 300 further includes a protective cover (not shown in the drawings) covering the driving motor 310 and the reducer 320 , so as to protect the driving motor 310 and the reducer 320 .

[0052] Recombination Figure 1 and Figure 3As shown, in some embodiments of the present invention, the transmission mechanism includes a driving wheel 510 disposed on the power output end of the reducer 320, a driven wheel 520 disposed on the main shaft 230, and a power transmission member 530 wound around the driving wheel 510 and the driven wheel 520. The transmission mechanism has the advantages of simple structure, high transmission efficiency, flexible speed change, etc.

[0053] In order to transmit greater power, in some embodiments of the present invention, the driving wheel 510 and the driven wheel 520 are preferably sprockets, and the power transmission member 530 is preferably a chain.

[0054] Recombination Figure 1 and Figure 3 As shown, in some embodiments of the present invention, the grain frying machine further includes a heating power supply device, which includes a conductive slip ring 610 and a brush; the conductive slip ring 610 is installed on the main shaft 230 through an insulating member and is electrically connected to the heating coil 430; the brush is fixedly arranged and in sliding contact with the conductive slip ring 610. The heating power supply device has the advantages of simple structure, stable power supply, and easy maintenance, and can improve the reliability and safety of the grain frying machine to ensure its performance and service life.

[0055] The present invention is described in detail in detail and is not intended to be limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terms used herein are selected to best explain the principles, practical applications, or technological advances of the embodiments, or to enable other persons skilled in the art to understand the embodiments disclosed herein, compared to the technology found on the market.

[0056] It should be understood that, for the sake of clarity, certain features of the present invention described in the context of separate embodiments may also be provided in combination in a single embodiment. Conversely, for the sake of brevity, various features of the present invention described in the context of a single embodiment may also be provided individually or in any suitable sub-combination, or in any other described embodiment of the present invention where appropriate. Certain features described in the context of various embodiments are not considered essential features of those embodiments unless the embodiments do not work without those features.

Claims

1. A grain frying machine, comprising a frame (100), a frying cylinder (200), a driving device (300) and a heating device (400); The frying cylinder (200) comprises a frying cavity (201) and a feeding cavity which are connected to each other, and the frying cylinder (200) is rotatably arranged on the frame (100); The driving device (300) is connected to the frying cylinder (200) through a transmission mechanism, and is used to drive the frying cylinder (200) to rotate; Features: The heating device (400) comprises a heat-averaging layer (410), a heat-insulating layer (420) and a heating coil (430); The heat-dissipating layer (410) is wrapped and arranged on the outer peripheral surface of the frying cylinder (200) corresponding to the frying cavity (201); The heat-insulating layer (420) is wrapped and arranged on the outer peripheral surface of the heat-averaging layer (410); A mounting groove is provided on at least one matching surface between the heat-averaging layer (410) and the heat-insulating layer (420), and the heating coil (430) is spirally wound in the mounting groove with at least three turns around the axis of the stir-frying tube (200).

2. The grain frying machine according to claim 1, characterized in that: The turns of the heating coil (430) are arranged at equal intervals; The frontmost turn of the heating coil (430) corresponds to the front end of the frying chamber (201), and the rearmost turn of the heating coil (430) corresponds to the rear end of the frying chamber (201).

3. The grain frying machine according to claim 1, characterized in that: The frame (100) comprises a supporting leg (110), and a vibration-damping bottom plate (111) is provided at the lower end of the supporting leg (110).

4. The grain frying machine according to claim 1, characterized in that: At least one group of rollers is disposed at the rear end of the frame (100), the roller group comprising a first roller (141) and a second roller (142) spaced apart from each other on the left and right sides; the first roller (141) and the second roller (142) are supported on the lower left and lower right sides of the stir-frying cylinder (200) respectively, and both are in rolling cooperation with the stir-frying cylinder (200); At least one support arm (120) is disposed at the front end of the frame (100), and a shaft coupling seat (130) is disposed on the support arm (120); The front end of the stir-frying tube (200) is provided with a head cover (210) with a convex arc surface structure, and the outer surface of the head cover (210) is provided with a coupling plate (220), and the coupling plate (220) is provided with a main shaft (230) coaxial with the stir-frying tube (200), and the main shaft (230) is rotatably connected to the coupling seat (130).

5. The grain frying machine according to claim 4, characterized in that: A reinforcement layer (202) is provided at a portion of the frying cylinder (200) that is used to contact the first roller (141) and / or the second roller (142).

6. The grain frying machine according to claim 4, characterized in that: The driving device (300) comprises a driving motor (310) and a reducer (320), wherein a power input end of the reducer (320) is drivingly connected to a power output end of the driving motor (310).

7. The grain frying machine according to claim 6, characterized in that: The driving device (300) further comprises a protective cover that covers the driving motor (310) and the reducer (320).

8. The grain frying machine according to claim 6, characterized in that: The transmission mechanism comprises a driving wheel (510) arranged on the power output end of the reducer (320), a driven wheel (520) arranged on the main shaft (230), and a power transmission member (530) wound around the driving wheel (510) and the driven wheel (520).

9. The grain frying machine according to claim 8, characterized in that: The reducer (320) is a cycloid pinwheel reducer; The driving wheel (510) and the driven wheel (520) are both sprocket wheels, and the power transmission member (530) is a chain.

10. The grain frying machine according to any one of claims 1 to 9, characterized in that: It also includes a heating power supply device, which includes a conductive slip ring (610) and a brush; The conductive slip ring (610) is installed on the main shaft (230) through an insulating member and is electrically connected to the heating coil (430); The brush is fixedly arranged and is in sliding contact with the conductive slip ring (610).

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