Powder coating device for quick-frozen rice dumplings

Abstract

The utility model discloses a flour coating device for quick-frozen rice dumplings, and belongs to the technical field of food processing. The utility model discloses a powder coating device for quick-frozen rice dumplings. The powder coating device comprises a base, the supporting assembly comprises a ring seat and a supporting rod; the center of the powder wrapping disc is provided with a first ball seat part, and an extension rod is fixed on the first ball seat part; the driving motor is provided with a swing arm, and the swing arm is rotationally connected with the extension rod; a powder spraying barrel is fixedly installed on the supporting rod, a powder inlet pipe is fixedly connected between the powder spraying barrel and the base, the powder spraying barrel is provided with a nozzle, one-way valves are installed in the powder inlet pipe and the nozzle, a piston is slidably installed in the powder spraying barrel, and a push rod is fixedly installed on the piston and abuts against the powder wrapping disc; the driving motor drives the swing arm to be rotationally connected with the extension rod, so that the flour wrapping disc rotates in the ring seat in a swinging manner, rice dumplings uniformly roll in the flour wrapping process, the surfaces of the rice dumplings can be uniformly covered with glutinous rice flour, and powder accumulation or lack in local areas is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing, in particular to a powder coating device for quick-frozen glutinous rice balls. Background Art

[0002] Tangyuan, a traditional Chinese holiday food, has become increasingly popular among consumers in recent years. Its unique glutinous rice coating and rich fillings offer both high nutritional value and a pleasant taste. However, the flour coating process is a crucial step in the production of quick-frozen tangyuan, directly impacting product quality and production efficiency.

[0003] Traditionally, glutinous rice balls (Tangyuan) are coated with flour by hand, evenly spreading glutinous rice flour on the surface. This method is not only inefficient but also difficult to ensure uniform coating, which can lead to inconsistent product appearance and quality. Furthermore, manual operation is difficult to fully guarantee hygienic conditions, which can easily lead to food safety issues. Especially in large-scale production, manual coating cannot meet the requirements of efficiency, hygiene, and standardization.

[0004] Several coating devices are currently available for the production of quick-frozen glutinous rice balls (Ganyuan), but these still present challenges in practical use. For example, some devices have complex structures, making operation and maintenance difficult. Others offer suboptimal coating results, with glutinous rice flour easily sticking or unevenly distributed. Therefore, developing a coating device for quick-frozen glutinous rice balls that is simple in structure, easy to operate, provides excellent coating results, and maintains stable operation is an urgent need for the industry. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art of unsatisfactory flour coating effect and easy adhesion or uneven distribution of glutinous rice flour, and proposes a flour coating device for quick-frozen glutinous rice balls.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A powder coating device for quick-frozen glutinous rice balls, comprising: a base filled with glutinous rice flour; a support assembly fixed to the base, comprising a ring seat and support rods, the support rods being equidistantly distributed along the circumference of the ring seat; a powder coating plate having a first ball seat portion at the center, an extension rod being fixed to the first ball seat portion, and the powder coating plate being rotatably mounted in the ring seat via the first ball seat portion; a drive motor being fixed between the support rods and provided with a swing arm, the swing arm being rotatably connected to the extension rod; wherein a powder spraying barrel is fixedly mounted on the support rod, a powder inlet pipe is fixedly connected between the powder spraying barrel and the base, the powder spraying barrel having a nozzle, a one-way valve being installed in the powder inlet pipe and the nozzle, a piston being slidably mounted in the powder spraying barrel, a push rod being fixedly mounted on the piston, and the push rod abutting against the powder coating plate.

[0008] In order to reduce the jamming problem of the push rod and the contact surface of the powder coating tray, preferably, the bottom of the push rod has a second ball seat portion, and the second ball seat portion abuts against the powder coating tray.

[0009] In order to achieve continuous powder spraying operation on the glutinous rice balls, further, a first spring is installed on the push rod, and the two ends of the first spring are respectively fixed to the piston and the inner bottom surface of the powder spraying cylinder.

[0010] In order to effectively provide a stable power transmission method, further, an angle α is formed between the swing arm and the base, and 35°<α<55°.

[0011] In order to effectively remove excess glutinous rice flour on the surface of the glutinous rice balls, avoid excessive powder accumulation on the surface of the glutinous rice balls, and make the coating more uniform, preferably, a hollow rod rack is slidably mounted on the support rod, and a brush is fixed to one end of the hollow rod rack close to the coating plate.

[0012] In order to enable the brush to apply appropriate force to the surface of the glutinous rice balls, thereby distributing the glutinous rice flour more evenly, further, an adjusting bolt is threadedly installed on the support rod, and the adjusting bolt abuts against the hollow rod frame.

[0013] In order to improve the surface adhesion of the glutinous rice balls by spraying water on the surface of the glutinous rice balls and facilitate the flour coating operation, a water pump is fixedly installed on the base for connecting to an external water source, and a hose is connected between the water pump and the hollow rod frame.

[0014] In order to prevent the glutinous rice flour from sticking together or adhering to an incorrect position, further, the hollow rod frame is outer-mounted with an ionization rod, and an insulating layer is provided between the ionization rod and the hollow rod frame.

[0015] Compared with the prior art, the present invention provides a powder coating device for quick-frozen glutinous rice balls, which has the following beneficial effects:

[0016] The powder coating device for quick-frozen glutinous rice balls is configured to pour the frozen glutinous rice balls into the powder coating plate through the arrangement of the powder coating plate, the driving motor, the push rod, the piston and the powder spraying barrel, and the driving motor causes the powder coating plate to swing and rotate in the ring seat through the rotation connection of the swing arm and the extension rod, so that the glutinous rice balls roll evenly during the powder coating process, so that the glutinous rice flour can be evenly covered on all surfaces of the glutinous rice balls, and the accumulation or lack of powder in local areas is avoided. At the same time, the up and down swinging can prevent the glutinous rice flour from forming lumps at the bottom of the container or on the surface of the glutinous rice balls, maintain the fluidity of the powder, ensure that the surface of the glutinous rice balls is always covered with a uniform layer of powder, and by swinging up and down, the glutinous rice balls will not stay in a certain position for a long time during the powder coating process, reduce the possibility of adhesion and breakage, and improve the appearance and quality of the product; at the same time, the powder coating plate that fluctuates up and down pushes the push rod reciprocatingly, and sprays the glutinous rice flour evenly on the surface of the glutinous rice balls by air flow spraying, so that the powder distribution is more uniform, and the accumulation and adhesion of powder are further avoided.

[0017] 2. The powder coating device for quick-frozen glutinous rice balls can change the distance between the hollow rod frame and the glutinous rice balls by adjusting the settings of the bolt and the brush, so that the brush can exert appropriate force on the surface of the glutinous rice balls, thereby more evenly distributing the glutinous rice flour. In addition, the sizes of glutinous rice balls from different batches may vary. Adjusting the distance between the brush and the glutinous rice balls can adapt to these differences, ensuring that each glutinous rice ball can be properly coated with powder, and the quality of the coating will not be affected by different sizes.

[0018] 3. This coating device for quick-frozen glutinous rice balls utilizes an ionization rod. During the coating process, the rod generates a strong electric field around the rod-shaped electrode using electricity from a high-voltage power supply. This strong electric field ionizes air molecules, generating positive and negative ions. These ions diffuse and act on the electric field to rapidly neutralize static charges on the surfaces of the glutinous rice balls and glutinous rice flour. When the glutinous rice balls enter the coating area, the ionized airflow from the ionization rod covers the surface of the glutinous rice balls and glutinous rice flour, eliminating static electricity and preventing the glutinous rice flour from clinging or clinging to incorrect locations. By adjusting the ionization intensity, the effectiveness of static elimination can be controlled, ensuring a smooth coating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a powder coating device for quick-frozen glutinous rice balls proposed in this utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of a powder coating device for quick-frozen glutinous rice balls proposed in this utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the powder spraying cylinder and hollow rod frame structure of a powder coating device for quick-frozen glutinous rice balls proposed in the utility model;

[0022] Figure 4 The utility model is a schematic diagram of a hollow rod frame structure of a powder coating device for quick-frozen glutinous rice balls.

[0023] In the figure: 1. Base; 2. Support assembly; 201. Ring seat; 202. Support rod; 203. Through hole; 204. Guide rod; 205. Second spring; 3. Powder coating plate; 301. First ball seat; 302. Extension rod; 4. Drive motor; 401. Swing arm; 5. Powder spray gun; 501. Nozzle; 502. Piston; 6. Powder inlet pipe; 7. Push rod; 701. Second ball seat; 702. First spring; 8. Adjustment bolt; 9. Water pump; 10. Hose; 11. Ionization rod; 12. Hollow rod rack; 1201. Brush; 13. Insulation layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] Example:

[0027] Reference Figure 1-Figure 2 A powder coating device for quick-frozen glutinous rice balls includes a base 1, a support component 2, a powder coating plate 3 and a drive motor 4.

[0028] The base 1 is filled with glutinous rice flour; the support assembly 2 is fixed on the base 1, and includes a ring seat 201 and a support rod 202, and the support rods 202 are equidistantly distributed along the circumference of the ring seat 201; the powder coating plate 3 has a first ball seat portion 301 in the center, and an extension rod 302 is fixed on the first ball seat portion 301, and the powder coating plate 3 is rotatably installed in the ring seat 201 through the first ball seat portion 301; the drive motor 4 is fixed between the support rods 202 and is equipped with a swing arm 401, which is rotatably connected to the extension rod 302. Optionally, there is an angle α between the swing arm 401 and the base 1, 35°<α<55°, preferably, α is 45°, which can effectively provide a stable power transmission method, and through the angle setting, the powder coating plate 3 can also produce up and down swinging while rotating, further improving the uniformity of the powder coating of the glutinous rice balls.

[0029] Specifically, refer to Figure 3 A powder spraying barrel 5 is fixedly mounted on the support rod 202, a powder inlet pipe 6 is fixedly connected between the powder spraying barrel 5 and the base 1, the powder spraying barrel 5 has a nozzle 501, a one-way valve is installed in the powder inlet pipe 6 and the nozzle 501, a piston 502 is slidably mounted in the powder spraying barrel 5, a push rod 7 is fixedly mounted on the piston 502, and the push rod 7 abuts against the powder coating plate 3.

[0030] It should be noted that the working surfaces of the powder inlet pipe 6 and the one-way valve installed in the nozzle 501 are opposite to each other. In this way, when negative pressure is generated inside the powder spraying tube 5, the internal pressure can only allow the glutinous rice powder in the base 1 to be filled into the powder spraying tube 5 through the powder inlet pipe 6. When the inside of the powder spraying tube 5 is squeezed, the glutinous rice powder inside can only be sprayed out from the nozzle 501.

[0031] By setting the above structure, the frozen glutinous rice balls are poured into the coating pan 3, and the driving motor 4 transmits the rotational force to the coating pan 3 through the rotational connection between the swing arm 401 and the extension rod 302, so that the coating pan 3 swings and rotates in the ring seat 201, so that the glutinous rice balls roll evenly during the coating process, so that the glutinous rice flour can be evenly covered on all surfaces of the glutinous rice balls, avoiding powder accumulation or lack in local areas. At the same time, the up and down swinging can prevent the glutinous rice flour from forming lumps at the bottom of the container or on the surface of the glutinous rice balls, maintain the fluidity of the powder, ensure that the surface of the glutinous rice balls is always covered with a uniform layer of powder, and by swinging up and down, the glutinous rice balls will not stay in a certain position for a long time during the coating process, reducing the possibility of adhesion and breakage, and improving the appearance and quality of the product; at the same time, the up and down oscillating coating pan 3 reciprocates to push the push rod 7, and the push rod 7 pushes the piston 502 to spray the glutinous rice flour filled in the powder spraying barrel 5 from the nozzle 501, and the glutinous rice flour is evenly sprayed on the surface of the glutinous rice balls by airflow spraying, so that the powder distribution is more uniform, further avoiding powder accumulation and adhesion.

[0032] Each structure is described in detail below with reference to the accompanying drawings.

[0033] Reference Figure 2 In order to reduce the jamming problem of the contact surface between the push rod 7 and the powder coating plate 3, the bottom of the push rod 7 has a second ball seat portion 701, and the second ball seat portion 701 abuts against the powder coating plate 3; the so-called abutment means that the powder coating plate 3 applies a force to the second ball seat portion 701, so that the second ball seat portion 701 is always in contact with the powder coating plate 3 under the action of the first spring 702.

[0034] Reference Figure 3 A first spring 702 is installed on the push rod 7, and both ends of the first spring 702 are fixed to the piston 502 and the inner bottom surface of the powder spraying tube 5 respectively.

[0035] When the powder coating plate 3 swings up and down to the lowest position, the push rod 7 is always in contact with the powder coating plate 3 under the action of the reset force of the first spring 702, and at the same time as the push rod 7 is reset, a negative pressure is generated inside the powder spraying tube 5, allowing the glutinous rice flour in the base 1 to be filled into the powder spraying tube 5 through the powder inlet pipe 6 for replenishment, thereby realizing continuous powder spraying operation of the glutinous rice balls.

[0036] Reference Figure 3 and Figure 4 A hollow rod frame 12 is slidably mounted on the support rod 202 , and a brush 1201 is fixed to one end of the hollow rod frame 12 close to the powder coating plate 3 .

[0037] By lightly brushing the surface of the glutinous rice balls, you can effectively remove excess glutinous rice flour from the surface of the glutinous rice balls, avoid excessive powder accumulation on the surface of the glutinous rice balls, make the powder coating more uniform, achieve the ideal powder layer thickness, and brush the glutinous rice flour on the surface of the glutinous rice balls to make it smoother and flatter, maintain the independence of each glutinous rice ball, ensure its shape is complete, and help improve the appearance quality of the glutinous rice balls.

[0038] Reference Figure 3 An adjusting bolt 8 is threadedly mounted on the support rod 202 , and the adjusting bolt 8 abuts against the hollow rod frame 12 .

[0039] Specifically, the support rod 202 has two through holes 203 of the same size, and a guide rod 204 is slidably installed in the through hole 203. The guide rod 204 is fixedly connected to the hollow rod frame 12, and a second spring 205 is installed on the guide rod 204. The two ends of the second spring 205 are respectively fixed to the hollow rod frame 12 and the support rod 202. By rotating the adjusting bolt 8, the distance between the hollow rod frame 12 and the glutinous rice balls is changed, so that the brush 1201 can apply appropriate force to the surface of the glutinous rice balls, thereby more evenly distributing the glutinous rice flour. In addition, the sizes of glutinous rice balls from different batches may be different. Adjusting the distance between the brush 1201 and the glutinous rice balls can adapt to these differences, ensuring that each glutinous rice ball can be properly coated with powder, and the quality of the coating will not be affected by different sizes.

[0040] Reference Figure 1 and Figure 4 A water pump 9 is fixedly installed on the base 1 for connecting to an external water source, and a hose 10 is connected between the water pump 9 and the hollow rod frame 12.

[0041] By spraying water on the surface of the glutinous rice balls, the surface adhesion of the glutinous rice balls is improved, making the coating operation easier.

[0042] Reference Figure 4 The hollow rod frame 12 is outer-mounted with the ionization rod 11 , and an insulating layer 13 is provided between the ionization rod 11 and the hollow rod frame 12 .

[0043] During the coating process, the ionization rod 11 generates a strong electric field around the rod-shaped electrode using electricity supplied by a high-voltage power supply. This strong electric field ionizes air molecules, producing positive and negative ions. These ions, through diffusion and the action of the electric field, quickly neutralize the static charge on the surfaces of the glutinous rice balls and glutinous rice flour. As the glutinous rice balls enter the coating area, the ionized airflow emitted by the ionization rod 11 covers the surfaces of the glutinous rice balls and glutinous rice flour, eliminating static electricity and preventing the glutinous rice flour from clinging or clinging to incorrect locations. By adjusting the ionization intensity, the effectiveness of the static elimination can be controlled, ensuring a smooth coating process.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A powder coating device for quick-frozen glutinous rice balls, characterized in that: include: A base (1) filled with glutinous rice flour; A support assembly (2) is fixed on the base (1), comprising a ring seat (201) and support rods (202), wherein the support rods (202) are equidistantly distributed along the circumference of the ring seat (201); The powder coating tray (3) has a first ball seat portion (301) at its center, an extension rod (302) is fixed to the first ball seat portion (301), and the powder coating tray (3) is rotatably mounted in the ring seat (201) via the first ball seat portion (301); A driving motor (4) is fixed between the support rods (202) and is provided with a swing arm (401), wherein the swing arm (401) is rotatably connected to the extension rod (302); A powder spraying barrel (5) is fixedly mounted on the support rod (202), a powder feed pipe (6) is fixedly connected between the powder spraying barrel (5) and the base (1), the powder spraying barrel (5) has a nozzle (501), a one-way valve is installed in the powder feed pipe (6) and the nozzle (501), a piston (502) is slidably mounted in the powder spraying barrel (5), a push rod (7) is fixedly mounted on the piston (502), and the push rod (7) abuts against the powder coating plate (3).

2. A powder coating device for quick-frozen glutinous rice balls according to claim 1, characterized in that: The bottom of the push rod (7) has a second ball seat portion (701), and the second ball seat portion (701) abuts against the powder coating plate (3).

3. A powder coating device for quick-frozen glutinous rice balls according to claim 2, characterized in that: A first spring (702) is installed on the push rod (7), and two ends of the first spring (702) are respectively fixed to the piston (502) and the inner bottom surface of the powder spraying cylinder (5).

4. A powder coating device for quick-frozen glutinous rice balls according to claim 3, characterized in that: An included angle α is formed between the swing arm (401) and the base (1), and the angle α is 35°<α<55°.

5. The powder coating device for quick-frozen glutinous rice balls according to claim 1, characterized in that: A hollow rod frame (12) is slidably mounted on the support rod (202), and a brush (1201) is fixed to one end of the hollow rod frame (12) close to the powder coating plate (3).

6. The powder coating device for quick-frozen glutinous rice balls according to claim 5, characterized in that: An adjusting bolt (8) is threadedly mounted on the support rod (202), and the adjusting bolt (8) abuts against the hollow rod frame (12).

7. The powder coating device for quick-frozen glutinous rice balls according to claim 6, characterized in that: A water pump (9) is fixedly mounted on the base (1) for connecting to an external water source, and a hose (10) is connected between the water pump (9) and the hollow rod frame (12).

8. The powder coating device for quick-frozen glutinous rice balls according to claim 7, characterized in that: The hollow rod frame (12) is externally connected to the ionization rod (11), and an insulating layer (13) is provided between the ionization rod (11) and the hollow rod frame (12).

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