A cleaning device for natural food color extraction

Abstract

This utility model discloses a cleaning device for extracting natural food pigments, relating to the technical field of cleaning devices. The utility model includes a cleaning tank with a discharge port at the bottom, a conveyor box fixedly connected to the left side of the cleaning tank, a stirring mechanism installed inside the cleaning tank cavity, and a conveying mechanism installed inside the conveyor box cavity. Specifically, this utility model, through the setting of cleaning components, involves starting a motor that drives a scraper below, causing the scraper to rotate on top of a filter plate. Under the thrust of a thrust spring, the scraper tightly contacts the top of the filter plate, cleaning impurities on the filter plate. This allows for rapid separation of the cleaning liquid from the raw material, thus not slowing down the overall cleaning process, reducing filter screen damage due to corrosion, scaling, or excessive clogging, extending its replacement cycle, and reducing secondary contamination of the raw material caused by residual impurities on the filter screen coming into contact with new batches of raw materials.

Description

Technical Field

[0001] This utility model belongs to the technical field of cleaning devices, and in particular relates to a cleaning device for extracting natural food pigments. Background Technology

[0002] The main methods for extracting natural pigments include water extraction and organic solvent extraction. These methods all require dissolving the raw materials to obtain a mixture, followed by impurity removal and separation. In this process, a separatory filter is a key component, used to filter impurities from the mixture and ensure the purity and quality of the extracted pigments.

[0003] Because natural pigment raw materials have complex compositions and may contain various impurities such as mud, sand, and fibers, these impurities can easily adhere to the surface and pores of the filter screen, causing the filter screen to become clogged. This prevents the cleaning solution from separating from the raw materials quickly, thus slowing down the overall cleaning process and increasing the likelihood of the filter screen being damaged due to corrosion, scaling, or excessive clogging, thereby reducing the service life of the equipment. At the same time, the impurities remaining on the filter screen can cause secondary contamination of the raw materials when they come into contact with new batches of raw materials. Therefore, a cleaning device for the extraction of natural food pigments is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a cleaning device for the extraction of natural food pigments. Specifically, by setting up a cleaning component, after starting the motor, the scraper below rotates on top of the filter plate. Under the thrust of the push spring, the scraper tightly contacts the top of the filter plate, cleaning impurities on the filter plate. This solves the problem that existing natural pigment raw materials have complex compositions and may contain various impurities such as mud, sand, and fibers. These impurities easily adhere to the filter screen surface and pores, causing filter screen blockage, preventing the cleaning solution from quickly separating from the raw material, thus slowing down the overall cleaning process. This increases the likelihood of filter screen damage due to corrosion, scaling, or excessive blockage, thereby reducing the equipment's lifespan. Furthermore, the residual impurities on the filter screen can cause secondary contamination of new batches of raw materials upon contact.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a cleaning device for extracting natural food pigments, comprising a cleaning tank with a discharge port at the bottom, a conveying box fixedly connected to the left side of the cleaning tank, a stirring mechanism installed inside the cleaning tank cavity, a conveying mechanism installed inside the conveying box cavity, the stirring mechanism including a rotating component installed inside the cleaning tank cavity, and a cleaning component located below the rotating component. The cleaning component includes a filter plate fixedly connected inside the cleaning tank cavity, a scraper contacting the top of the filter plate, a fixed bracket fixedly connected to the top of the scraper, a retaining shaft connected internally to the retaining shaft via a pin, a resistance element at the end of the retaining shaft away from the retaining shaft, a fixed bracket connected to the end of the scraper near the center of the filter plate via a pin, an elastic cleaning brush installed at the bottom of the scraper, and the filter plate being installed at an angle.

[0007] Furthermore, a water tank is installed on the right side of the cleaning box, and a discharge port 1 fixed to the right side of the cleaning box is provided below the water tank. A discharge port 3 is installed at the bottom of the conveying box, and a feed port is provided at the top of the conveying box. Discharge ports 1, 2, and 3 are all equipped with valves.

[0008] Furthermore, the rotating assembly includes a motor fixedly connected to the top of the cleaning tank. The bottom output end of the motor is fixedly connected to a rotating shaft via a coupling. The rotating shaft passes through the cleaning tank and extends into the cavity. The outer surface of the rotating shaft is rotatably connected to the inner edge of the cleaning tank. A spiral blade is provided inside the cleaning tank cavity. The outer surface of the rotating shaft is fixedly connected to the inner ring of the spiral blade. The bottom of the rotating shaft is fixedly connected to the top of the fixed bracket. The spiral blade is used to flip the raw material extracted from natural food pigments up and down inside the cleaning tank cavity.

[0009] Furthermore, the top of the cleaning chamber is provided with two fixed rods. The corresponding sides of the two fixed rods are fixedly connected to the outer surface of the rotating shaft. The ends of the two fixed rods that are far apart from each other are respectively rotatably connected to stirring rods. The two stirring rods pass through the fixed rods and extend to the top and bottom. The bottom of the two fixed rods is provided with stirring plates. The center of the stirring plates is fixedly connected to the outer surface of the stirring rods. Several elastic cleaning strips are installed on the outer surface of the two stirring rods.

[0010] Furthermore, each of the two fixed rods is provided with a gear at its top, and the center of each gear is fixedly connected to the outer surface of the stirring rod. An internal gear is fixedly connected to the top of the cavity of the cleaning tank, and the outer surfaces of the two gears mesh with the inner wall of the internal gear. Both the internal gear and the outer surface of the gear are coated with waterproof paint.

[0011] Furthermore, the conveying mechanism includes a second motor fixedly connected to the left side of the conveying box. The right output end of the second motor is fixedly connected to a second rotating shaft via a coupling. The second rotating shaft passes through the conveying box and extends into the cavity. The outer surface of the second rotating shaft is rotatably connected to the inner edge of the conveying box. The cavity of the conveying box is provided with a second spiral blade fixedly connected to the outer surface of the second rotating shaft. The outer ring of the second spiral blade contacts a filter screen. The outer ring of the filter screen is fixedly connected to the inner wall of the conveying box. The filter screen is used to discharge larger impurities from the raw materials extracted from natural food colorings.

[0012] Furthermore, the resistance component includes a protective cover installed at the end of the second retaining shaft away from the second fixed bracket. The outer surface of the second retaining shaft is slidably connected to the inside of the protective cover. The end of the protective cover away from the second retaining shaft is fixedly connected to the first retaining shaft. A thrust spring is provided inside the cavity of the protective cover. The two ends of the thrust spring are fixedly connected to the corresponding sides of the first retaining shaft and the second retaining shaft, respectively. The side of the first retaining shaft away from the thrust spring is rotatably connected to the bottom of the inside of the first rotating shaft through a pin. A limit rod is provided in the inner ring of the thrust spring. The limit rod is fixed at the end of the first retaining shaft near the second retaining shaft.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model, by setting up a cleaning component, specifically, after starting the motor, drives the scraper below to rotate on the top of the filter plate. Under the thrust of the thrust spring, the scraper tightly contacts the top of the filter plate to clean the impurities on the filter plate, allowing the cleaning liquid to quickly separate from the raw material, thus not slowing down the overall cleaning rhythm, reducing the damage to the filter screen due to corrosion, scaling or excessive clogging, extending its replacement cycle, and reducing the secondary contamination of the raw material caused by the contact of the impurities remaining on the filter screen with the new batch of raw material.

[0015] 2. This utility model incorporates a rotating component. Specifically, starting a motor drives a rotating shaft to rotate, causing the spiral blades to rotate. As the rotating shaft rotates, the two fixed rods also rotate, and the gears on the two stirring rods move accordingly. The two gears begin to rotate in their meshing with the internal gear, causing the stirring plate to rotate during its circular motion. The centrifugal force and tumbling effect generated by the rotation allow the cleaning medium to fully contact the surface of the raw materials. Cleaning is achieved through the slight collision between the water flow and the raw materials themselves, reducing mechanical damage to fragile raw materials such as fruits, vegetables, and flowers.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the cleaning box of this utility model;

[0020] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the diagram;

[0021] Figure 4 This is a partial structural diagram of the rotating shaft of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the scraper of this utility model;

[0023] Figure 6 This utility model Figure 5 A magnified structural diagram of B in the diagram;

[0024] Figure 7 This is a schematic cross-sectional view of the conveyor box of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 111. Cleaning tank; 112. Water tank; 113. Outlet 1; 114. Outlet 2; 115. Outlet 3; 116. Inlet; 117. Conveying box; 2. Stirring mechanism; 21. Rotating assembly; 211. Motor 1; 212. Shaft 1; 213. Fixed rod; 214. Gear; 215. Internal gear; 216. Stirring rod; 217. Stirring plate; 218. Spiral blade 1; 22. Cleaning assembly; 221. Filter plate; 222. Fixed bracket 1; 223. Scraper; 224. Protective cover; 225. Shaft 1; 226. Thrust spring; 227. Shaft 2; 228. Fixed bracket 2; 3. Conveying mechanism; 311. Motor 2; 312. Shaft 2; 313. Spiral blade 2; 314. Filter screen cover. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1-7 As shown, this utility model is a cleaning device for extracting natural food pigments, including a cleaning tank 111, a discharge port 114 at the bottom of the cleaning tank 111, a conveying box 117 fixedly connected to the left side of the cleaning tank 111, a stirring mechanism 2 installed in the cavity of the cleaning tank 111, a conveying mechanism 3 installed in the cavity of the conveying box 117, the stirring mechanism 2 including a rotating component 21 installed in the cavity of the cleaning tank 111, a cleaning component 22, and a cleaning assembly. Component 22 is located below the rotating assembly 21. The cleaning assembly 22 includes a filter plate 221 fixedly connected to the cavity of the cleaning tank 111. The top of the filter plate 221 contacts a scraper 223. A second fixed bracket 228 is fixedly connected to the top of the scraper 223. A second retaining shaft 227 is connected to the inside of the second fixed bracket 228 via a pin. A resistance element is provided at the end of the retaining shaft 227 away from the second fixed bracket 228. The end of the scraper 223 near the center of the filter plate 221 is connected to a first fixed bracket 222 via a pin. A flexible cleaning brush is installed at the bottom of component 3. The filter plate 221 is installed at an angle. The resistance component includes a protective cover 224 installed at the end of the second retaining shaft 227 away from the fixed bracket 228. The outer surface of the second retaining shaft 227 is slidably connected to the inside of the protective cover 224. A retaining shaft 225 is fixedly connected to the end of the protective cover 224 away from the second retaining shaft 227. A thrust spring 226 is installed inside the cavity of the protective cover 224. The two ends of the thrust spring 226 are fixedly connected to the corresponding sides of the first retaining shaft 225 and the second retaining shaft 227, respectively. The side of shaft 225 away from the thrust spring 226 is rotatably connected to the bottom of shaft 212 via a pin. The inner ring of the thrust spring 226 is equipped with a limit rod, which is fixed to the end of shaft 225 near shaft 227. This cleans the impurities on the filter plate, allowing the cleaning fluid to separate quickly from the raw material, thus not slowing down the overall cleaning rhythm, reducing the damage to the filter screen due to corrosion, scaling or excessive clogging, extending its replacement cycle, and reducing the secondary contamination of the raw material caused by the contact of impurities remaining on the filter screen with the new batch of raw material.

[0029] A water tank 112 is installed on the right side of the cleaning tank 111. Below the water tank 112 is a discharge port 113 fixed to the right side of the cleaning tank 111. A discharge port 3 115 is installed at the bottom of the conveying box 117. A feed port 116 is installed at the top of the conveying box 117. Discharge ports 113, 114, and 115 are all equipped with valves.

[0030] The rotating assembly 21 includes a motor 211 fixedly connected to the top of the cleaning tank 111. A rotating shaft 212 is fixedly connected to the bottom output end of the motor 211 via a coupling. The rotating shaft 212 passes through the cleaning tank 111 and extends into the cavity. The outer surface of the rotating shaft 212 is rotatably connected to the inner edge of the cleaning tank 111. A spiral blade 218 is disposed within the cavity of the cleaning tank 111. The outer surface of the rotating shaft 212 is fixedly connected to the inner ring of the spiral blade 218. The bottom of the rotating shaft 212 is fixedly connected to the top of the fixed bracket 222. The spiral blade 218 is used to rotate the raw material extracted from natural food coloring up and down within the cavity of the cleaning tank 111. Two fixed rods 213 are disposed at the top of the cavity of the cleaning tank 111. One side of each fixed rod 213 is fixedly connected to the outer surface of the rotating shaft 212. Stirring rods 216 are rotatably connected to the ends of the two fixed rods 213 that are far apart from each other. 216 passes through the fixed rod 213 and extends to the top and bottom. A stirring plate 217 is provided at the bottom of each of the two fixed rods 213. The center of the stirring plate 217 is fixedly connected to the outer surface of the stirring rod 216. Several elastic cleaning strips are installed on the outer surface of the two stirring rods 216. A gear 214 is provided at the top of each of the two fixed rods 213. The center of the gear 214 is fixedly connected to the outer surface of the stirring rod 216. An internal gear 215 is fixedly connected to the top of the cavity of the cleaning tank 111. The outer surface of the two gears 214 meshes with the inner wall of the internal gear 215. The outer surfaces of the internal gear 215 and the gears 214 are coated with waterproof paint, so that the stirring plate rotates during the circular motion. The centrifugal force and tumbling effect generated by the rotation allow the cleaning medium to fully contact the surface of the raw material. Cleaning is achieved through the slight collision between the water flow and the raw material itself, reducing mechanical damage to fragile raw materials such as fruits, vegetables and flowers.

[0031] The conveying mechanism 3 includes a motor 311 fixedly connected to the left side of the conveying box 117. The right output end of the motor 311 is fixedly connected to a rotating shaft 312 via a coupling. The rotating shaft 312 passes through the conveying box 117 and extends into the cavity. The outer surface of the rotating shaft 312 is rotatably connected to the inner edge of the conveying box 117. The cavity of the conveying box 117 is provided with a spiral blade 313 fixedly connected to the outer surface of the rotating shaft 312. The outer ring of the spiral blade 313 contacts a filter screen 314. The outer ring of the filter screen 314 is fixedly connected to the inner wall of the conveying box 117. The filter screen 314 is used to discharge larger impurities from the raw materials extracted from natural food pigments.

[0032] A specific application of this embodiment is as follows: During use, the natural food to be extracted is poured into the feed inlet 116, and the motor 311 and water tank 112 are started simultaneously. The motor 311 then drives the shaft 312 to rotate, causing the spiral blades 313 to start rotating. This causes the natural food to tumble continuously in the filter screen 314. Then, the valve of the discharge outlet 115 is opened, and the water sprayed from the water tank 112 removes surface dirt, reducing the amount of impurities such as mud, dust, and microorganisms entering the extraction process. This reduces the pressure of subsequent purification, reduces the amount of hard impurities such as mud and fibers entering subsequent filtration equipment, reduces equipment wear and clogging probability, extends service life, reduces the complexity of subsequent cleaning steps, shortens the overall production cycle, and improves process controllability.

[0033] After the spiral blades 313 bring the natural food into the cleaning tank 111, and a certain amount of liquid is added to the cleaning tank 111, the motor 211 is started. The motor 211 then drives the rotating shaft 212 to rotate, causing the spiral blades 218 to rotate. This lifts the natural food in the water upward and drives the scraper 223 below, causing the scraper 223 to rotate on top of the filter plate 221. Under the thrust of the thrust spring 226, the scraper 223 is in close contact with the top of the filter plate 221, cleaning the impurities on the filter plate 221. With the rotation of the rotating shaft 212, the two fixed rods 213 also rotate, and the gears 214 on the two stirring rods 216 also move accordingly. Two gears 214 begin to rotate in the meshing with the internal gear 215, causing the stirring plate 217 to rotate in a circular motion. The centrifugal force and tumbling effect generated by the rotation allow the cleaning medium to fully contact the surface of the raw materials, including areas that are difficult to reach by ordinary soaking, such as crevices and folds. Cleaning is achieved through the slight collision between the water flow and the raw materials themselves, reducing the mechanical damage to fragile raw materials such as fruits, vegetables and flowers caused by high-pressure rinsing. The integrity of the raw material structure can reduce the premature loss of cell juice and reduce the excessive dilution or oxidation of pigments during the cleaning stage, thus better preserving their activity and extraction value. The water circulation improves the utilization rate of the cleaning medium, reduces the consumption of water resources and cleaning agents, and lowers production energy consumption.

[0034] After cleaning, first open the valve of outlet 2 114 to discharge the liquid, then open the valve of outlet 1 113 to bring out the natural food. After being discharged separately, the cleaned raw materials can directly enter the next process such as crushing and extraction without the need for additional solid-liquid separation, which shortens the production cycle. Furthermore, the separate collection of solid raw materials and liquids facilitates accurate measurement of raw material processing volume and cleaning liquid usage, making it easier to control production parameters and ensure batch-to-batch quality stability.

[0035] It should be noted that the control of motor 211 and motor 311 in this application can both be achieved by using a program set in the control panel and inputting relevant parameters as needed for automated control. This control method can be implemented using existing technologies, such as PLC.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cleaning device for extracting natural food pigments, comprising a cleaning tank (111), wherein a discharge port (114) is provided at the bottom of the cleaning tank (111), and a conveyor box (117) is fixedly connected to the left side of the cleaning tank (111), characterized in that, Also includes: A stirring mechanism (2) is installed inside the cleaning tank (111); The conveying mechanism (3) is disposed in the cavity of the conveying box (117); The stirring mechanism (2) includes a rotating component (21), which is installed inside the cleaning tank (111); A cleaning component (22) is disposed below the rotating component (21); The cleaning component (22) includes a filter plate (221) fixedly connected to the cavity of the cleaning tank (111). The top of the filter plate (221) is in contact with a scraper (223). The top of the scraper (223) is fixedly connected to a second fixed bracket (228). The interior of the second fixed bracket (228) is connected to a second retaining shaft (227) via a pin. A resistance element is provided at the end of the second retaining shaft (227) away from the second fixed bracket (228). The end of the scraper (223) near the center of the filter plate (221) is connected to a first fixed bracket (222) via a pin. Among them, the scraper (223) is equipped with an elastic cleaning brush at the bottom, and the filter plate (221) is installed at an angle.

2. The cleaning device for extracting natural food pigments according to claim 1, characterized in that, A water tank (112) is installed on the right side of the cleaning box (111). A discharge port (113) fixed to the right side of the cleaning box (111) is provided below the water tank (112). A discharge port (115) is installed at the bottom of the conveying box (117). A feed port (116) is provided above the conveying box (117). Among them, outlet 1 (113), outlet 2 (114) and outlet 3 (115) are all equipped with valves.

3. The cleaning device for extracting natural food pigments according to claim 1, characterized in that, The rotating assembly (21) includes a motor (211) fixedly connected to the top of the cleaning tank (111). The bottom output end of the motor (211) is fixedly connected to a rotating shaft (212) via a coupling. The rotating shaft (212) passes through the cleaning tank (111) and extends into the cavity. The outer surface of the rotating shaft (212) is rotatably connected to the inner edge of the cleaning tank (111). A spiral blade (218) is provided inside the cavity of the cleaning tank (111). The outer surface of the rotating shaft (212) is fixedly connected to the inner ring of the spiral blade (218). The bottom of the rotating shaft (212) is fixedly connected to the top of the fixed bracket (222). Among them, the spiral blade (218) is used to flip the raw materials for natural food pigment extraction up and down in the cavity of the cleaning box (111).

4. A cleaning device for extracting natural food pigments according to claim 3, characterized in that, The top of the cleaning tank (111) cavity is provided with two fixed rods (213). The two fixed rods (213) are fixedly connected to the outer surface of the rotating shaft (212) on their respective sides. The ends of the two fixed rods (213) that are far apart from each other are respectively rotatably connected to stirring rods (216). The two stirring rods (216) pass through the fixed rods (213) and extend to the top and bottom. The bottom of the two fixed rods (213) is provided with stirring plates (217). The center of the stirring plates (217) is fixedly connected to the outer surface of the stirring rods (216). Among them, several elastic cleaning strips are installed on the outer surface of the two stirring rods (216).

5. A cleaning device for extracting natural food pigments according to claim 4, characterized in that, The top of each of the two fixed rods (213) is provided with a gear (214), and the center of the two gears (214) is fixedly connected to the outer surface of the stirring rod (216). The top of the cavity of the cleaning tank (111) is fixedly connected with an internal gear (215), and the outer surface of the two gears (214) meshes with the inner wall of the internal gear (215). The outer surfaces of the internal gear (215) and the gear (214) are coated with waterproof paint.

6. A cleaning device for extracting natural food pigments according to claim 1, characterized in that, The conveying mechanism (3) includes a motor (311) fixedly connected to the left side of the conveying box (117). The right output end of the motor (311) is fixedly connected to a rotating shaft (312) via a coupling. The rotating shaft (312) passes through the conveying box (117) and extends into the cavity. The outer surface of the rotating shaft (312) is rotatably connected to the inner edge of the conveying box (117). The cavity of the conveying box (117) is provided with a spiral blade (313) fixedly connected to the outer surface of the rotating shaft (312). The outer ring of the spiral blade (313) contacts a filter screen (314). The outer ring of the filter screen (314) is fixedly connected to the inner wall of the conveying box (117). The filter screen (314) is used to remove larger impurities from the raw materials from which natural food pigments are extracted.

7. A cleaning device for extracting natural food pigments according to claim 1, characterized in that, The resistance component includes a protective cover (224) installed on the end of the second clamping shaft (227) away from the second fixed bracket (228). The outer surface of the second clamping shaft (227) is slidably connected to the inside of the protective cover (224). The end of the protective cover (224) away from the second clamping shaft (227) is fixedly connected to the first clamping shaft (225). A thrust spring (226) is provided in the cavity of the protective cover (224). The two ends of the thrust spring (226) are fixedly connected to the corresponding sides of the first clamping shaft (225) and the second clamping shaft (227), respectively. The side of the first clamping shaft (225) away from the thrust spring (226) is rotatably connected to the bottom of the first rotating shaft (212) through a pin. Among them, the inner ring of the thrust spring (226) is provided with a limit rod, which is fixed to the end of the first retaining shaft (225) near the second retaining shaft (227).

Images