Ultrasonic pulping device

Abstract

The utility model discloses an ultrasonic pulping device which comprises an upper cover component and a cylinder body component, the upper cover part comprises ultrasonic transducers, a vibration disc and a fixed grinding disc, and the multiple ultrasonic transducers are fixedly arranged on an upper cover; a plurality of spiral springs are distributed on the upper surface of the vibration disc and sleeve adjusting bolts, and the upper ends of the adjusting bolts penetrate through the upper cover and are in threaded connection with nuts fixed to the upper cover; the lower end face of the ultrasonic transducer abuts against the upper surface of the vibration disc. The vibration disc is located between the fixed grinding disc and the upper cover and tightly attached to the back face of the grinding face of the fixed grinding disc under the action of the spring. The upper cover is hermetically connected with the periphery of the cylinder body to form a closed space, and the fixed millstone and the movable millstone are positioned in the closed space. According to the utility model, the ultrasonic transducer is adopted to generate ultrasonic vibration, so that high-frequency friction is generated between the millstone and rice, and the grinding efficiency is improved; and fine grinding fineness can be achieved, and application with high product quality requirements is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to food processing equipment relates to the field of cereal and legume food grinding machinery, and especially to an ultrasonic pulp grinding device. BACKGROUND

[0002] The principle of the existing electric pulp grinder is usually that the motor drives the rotating moving grinding disc, under the action of centrifugal force, the rice in the gap between the fixed grinding disc and the moving grinding disc collides with each other, and through the comprehensive action of extrusion, shearing and friction, becomes rice pulp. For example, the electric pulp grinder disclosed in Chinese patent No. CN205361488U, the structure of which comprises lower grinding and upper grinding, the upper grinding is pressed on the lower grinding, the output shaft of the motor driving device rotates, causing the relative friction rotation between the lower grinding and the upper grinding: the food raw materials are introduced into the gap between the lower grinding and the upper grinding through the dropping device, and the water pump switch controls the water feeding device to send water into the lower grinding through the water collecting tank; under the action of pressure and friction, the food raw materials are ground into pulp liquid between the lower grinding and the upper grinding.

[0003] The existing electric pulp grinder has some problems in use, such as the effect of direct grinding is not good when the particle size of cereal and legume food raw materials is too large, the particle size is too coarse after grinding, the grinding effect is not good, and the practicability is poor; a large amount of residue is generated during the grinding process, the residue carries a large amount of unbroken materials, and contains a large amount of food raw material nutrients, so the loss rate of nutrients is high; the mechanical shearing force of the upper and lower grinding discs is difficult to fully break the fibers, the average particle size of the pulp is difficult to further reduce, and the residue retention rate is high; to solve these problems, some electric pulp grinders are provided with additional filtering devices such as filter screens at the pulp outlet, and the residue obtained after filtering is put into the pulp grinder for secondary grinding, which is beneficial to ensuring that the ground pulp is finer, but the process is complicated, the effect of one-step grinding into pulp cannot be achieved, and the maintenance cost increases. UTILITY MODEL CONTENTS

[0004] To solve the problems of the prior art, the utility model provides an ultrasonic pulp grinding device which can grind into pulp in one step, enhance the grinding effect and improve the practicability.

[0005] The technical scheme for achieving the utility model is as follows:

[0006] An ultrasonic pulp grinding device, comprising an upper cover part and a cylinder part;

[0007] The upper cover part comprises an upper cover, an ultrasonic transducer, an adjusting bolt, a vibrating disc, a barrel and a fixed grinding disc, a plurality of ultrasonic transducers are fixedly arranged on the upper cover; a plurality of spiral springs are distributed on the upper surface of the vibrating disc, the springs are sleeved on the adjusting bolt, the upper end of the spring abuts against the lower end face of the step of the adjusting bolt; the upper end of the adjusting bolt penetrates through the upper cover and is screwed with the upper cover; the lower end face of the ultrasonic transducer abuts against the upper surface of the vibrating disc;

[0008] The vibration disc is located between the fixed grinding disc and the upper cover, and is tightly attached to the back of the grinding surface of the fixed grinding disc under the action of the spring; the lower end of the material cylinder is fixedly communicated with the central feeding port of the fixed grinding disc, and the upper end of the material cylinder penetrates the central hole of the upper cover;

[0009] The cylinder component comprises a movable grinding disc, a cylinder and a slurry outlet pipe; the movable grinding disc is arranged in the cylinder, the center of the movable grinding disc is connected with the rotating shaft, the lower end of the rotating shaft penetrates the bottom surface of the cylinder and is connected with the output shaft of the motor; the slurry outlet pipe is arranged on the bottom surface of the cylinder and communicates with the inner cavity of the cylinder;

[0010] The upper cover is sealingly connected with the periphery of the cylinder to form a closed space, and the fixed grinding disc and the movable grinding disc are located in the closed space, and the grinding surfaces of the fixed grinding disc and the movable grinding disc are correspondingly arranged.

[0011] Further, the plurality of ultrasonic transducers are equally arranged around the center of the upper cover; each ultrasonic transducer corresponds to an adjusting bolt.

[0012] Further, the ultrasonic transducer is arranged on the inner side of the adjusting bolt corresponding thereto and between the center of the upper cover and the adjusting bolt corresponding thereto.

[0013] Further, a plurality of cross-section notches are arranged on the disc surface of the vibration disc, and the cross-section notches are distributed radially on the disc surface of the vibration disc; the vibration disc disc surface between two adjacent cross-section notches forms a vibration block, and each vibration block corresponds to an ultrasonic transducer and an adjusting bolt corresponding thereto.

[0014] Further, the thickness of the vibration disc is 0.5-1.0 mm; and the material is stainless steel.

[0015] Further, the width of the cross-section notch is 1.5-2.5 mm.

[0016] The adjusting bolt is used to adjust the amplitude of the vibration disc.

[0017] Further, a gap adjusting member is arranged, which is a fixed grinding disc adjusting wheel, the inner edge of the fixed grinding disc adjusting wheel is provided with threads and is connected with the outer wall of the material cylinder through threads, the lower part of the fixed grinding disc adjusting wheel is arranged in the groove on the upper surface of the upper cover and is inserted with the upper cover, the fixed grinding disc adjusting wheel is rotated to drive the material cylinder to move up and down under the action of the threads, and the gap between the grinding surfaces of the fixed grinding disc and the movable grinding disc is adjusted.

[0018] Further, a conveying auger is arranged, which is connected with the motor instead of the rotating shaft, and the conveying auger is inserted into the material cylinder from the lower end of the material cylinder.

[0019] Further, a hopper is included, and a lower end discharge port of the hopper is detachably connected with an upper end feeding port of the barrel.

[0020] Further, a water inlet pipe is included, and the water inlet pipe is arranged above the upper end feeding port of the barrel or the hopper.

[0021] Further, a base is included, and an upper end of the base is connected with a bottom end surface of the cylinder body, and the motor is arranged in the base.

[0022] Further, a skeleton sealing ring, a deep groove ball bearing and a bearing seat are included, a rotating shaft of the conveying auger is connected with the motor through the deep groove ball bearing, the deep groove ball bearing is arranged on the bottom surface of the cylinder body through the bearing seat, and an upper end surface of the deep groove ball bearing is connected with the bottom surface of the cylinder body through the skeleton sealing ring.

[0023] The role of the section notch is that the circumference of the vibration disc is evenly divided into 1.5-2.5mm wide notches, the section notch can change the stress distribution and deformation characteristics of the vibration disc surface, so that the vibration disc surface is elastically deformed under the action of the vibration force applied by the ultrasonic transducer, the mechanical energy of the ultrasonic transducer is amplified, and is transmitted to the fixed grinding disc, so that high-frequency friction is generated between the fixed grinding disc and the ground material, the wet ground material is displaced by the vibration force of the ultrasonic wave, and the structure of the wet ground material is damaged. Since the high-frequency vibration of the ultrasonic wave has high energy density and high power, the wet ground material can be crushed into fine particles in a short time, and at the same time, the motor drives the movable grinding disc to rotate, the wet ground material in the gap between the fixed grinding disc and the movable grinding disc is impacted under the action of centrifugal force, and the wet ground material is ground into pulp under the comprehensive action of extrusion, shearing and friction.

[0024] The ultrasonic grinding device amplifies the mechanical energy through the vibration disc, and finally transmits the high-frequency friction between the fixed grinding disc and the rice, and then drives the movable grinding disc to rotate under the action of centrifugal force. The wet ground material in the gap between the fixed grinding disc and the movable grinding disc is impacted, and the wet ground material is ground into pulp under the comprehensive action of extrusion, shearing and friction. The pulp is ground from coarse to fine along the inclined groove channel on the surface of the grinding disc, and is ground into pulp from the inside to the outside, and then is discharged through the pulp outlet pipe.

[0025] The unique energy transmission mode of the ultrasonic wave is used to realize faster and more complete crushing and fine processing of the material, promote the release and extraction of the nutrient components, and improve the nutritional value of the pulp.

[0026] The ultrasonic grinding device is applied to grinding of grains or bean food, such as rice, millet, soybeans, red beans and black beans.

[0027] The ultrasonic grinding device has the advantages that

[0028] (1) Ultrasonic vibration is generated by using an ultrasonic transducer, which can generate high-frequency friction between the grinding disc and the workpiece, thereby improving the grinding efficiency.

[0029] (2) It achieves a grinding effect with smaller fineness, less residue and less loss of nutrients in a single grinding process, which meets the application requirements with high product quality.

[0030] (3) The ultrasonic vibration generated by the ultrasonic transducer has a good cleaning effect. When cleaning the grinder with clean water, the ultrasonic transducer is turned on at the same time, which has a good cleaning effect on the grinding groove of the grinding disc.

[0031] (4) By conveying wet rice grains and water in a quantitative manner through the conveying auger, the amount of material being ground is accurate and consistent, which can maintain a continuous and stable conveying state and reduce interruptions in the grinding process, thereby improving production efficiency. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the ultrasonic grinding device in the embodiment;

[0033] Figure 2 This is a schematic diagram of the overall half-section structure of the ultrasonic grinding device in the embodiment;

[0034] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0035] Figure 4 This is an exploded view of the structure of the upper cover component of the ultrasonic grinding device in the embodiment;

[0036] Figure 5 for Figure 4 Enlarged view of section B;

[0037] Figure 6 The image shown is an exploded view of the cylinder component of the ultrasonic grinding device in the embodiment.

[0038] In the picture:

[0039] 1. Hopper;

[0040] 2. Top cover components; 2-1. Top cover; 2-2. Nut; 2-3. Sealing ring; 2-4. Ultrasonic transducer; 2-5. Adjusting wheel of the fixed grinding disc; 2-6. Adjusting bolt; 2-7. Spring; 2-8. Vibrating disc; 2-801. Cross-sectional notch; 2-802. Vibrating block; 2-9. Material cylinder; 2-10. Fixed grinding disc;

[0041] 3, cylinder part; 3-1, conveying screw; 3-2, dynamic grinding disc; 3-3, cylinder; 3-4, skeleton sealing ring; 3-5, deep groove ball bearing; 3-6, bearing seat; 3-7, slurry outlet pipe;

[0042] 4, base;

[0043] 5, motor;

[0044] 6, water inlet pipe. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model. EMBODIMENT

[0046] As shown in the figure, an ultrasonic pulp grinding device comprises an upper cover part 2 and a cylinder part 3. Figures 1-6

[0047] The upper cover part 2 comprises an upper cover 2-1, ultrasonic transducers 2-4, adjusting bolts 2-6, vibrating discs 2-8, barrels 2-9 and fixed grinding discs 2-10, a plurality of ultrasonic transducers 2-4 are fixedly arranged on the upper cover 2-1 through sealing rings 2-3; a plurality of helical springs 2-7 are distributed on the upper surface of the vibrating disc 2-8, the spring 2-7 is sleeved on the adjusting bolt 2-6, the upper end of the spring 2-7 abuts against the lower end face of the step of the adjusting bolt 2-6; the upper end of the adjusting bolt 2-6 penetrates the upper cover 2-1 and is screwed with the nut 2-2 fixed on the upper cover 2-1; the lower end face of the ultrasonic transducer 2-4 abuts against the upper surface of the vibrating disc 2-8; the vibrating disc 2-8 is located between the fixed grinding disc 2-10 and the upper cover 2-1, and the vibrating disc 2-8 is tightly attached to the back surface of the grinding surface of the fixed grinding disc 2-10 under the action of the spring 2-7; the lower end of the barrel 2-9 is fixedly communicated with the center feeding port of the fixed grinding disc 2-10, and the upper end of the barrel 2-9 penetrates the center hole of the upper cover 2-1. Figures 2-5

[0048] The cylinder part 3 comprises a dynamic grinding disc 3-2, a cylinder 3-3 and a slurry outlet pipe 3-7; the dynamic grinding disc 3-2 is arranged in the cylinder 3-3, the center of the dynamic grinding disc 3-2 is connected with a rotating shaft, and the lower end of the rotating shaft penetrates the bottom surface of the cylinder 3-3 and is connected with the output shaft of the motor 5; the slurry outlet pipe 3-7 is arranged on the bottom surface of the cylinder 3-3 and communicates with the inner cavity of the cylinder 3-3. Figure 6

[0049] ​​​The upper cover 2-1 is sealingly connected with the periphery of the cylinder body 3-3 to form a closed space, the fixed grinding disc 2-10 and the movable grinding disc 3-2 are located in the closed space, and the grinding surfaces of the fixed grinding disc 2-10 and the movable grinding disc 3-2 are correspondingly arranged. The surface pattern of the movable grinding disc is a bevel tooth pattern with an inclination angle of 40°, the greater the angle, the slower the material moves outward, and the surface pattern of the fixed grinding disc is a reverse bevel tooth pattern with an inclination angle of 30°, the movable grinding disc pattern and the fixed grinding disc pattern are staggered and distributed to form a cross grid, prolonging the residence time of the material and enhancing the grinding fineness.

[0050] Further, the plurality of ultrasonic transducers 2-4 are arranged on the upper cover 2-1 to be equally divided around the center of the upper cover 2-1, and each ultrasonic transducer 2-4 corresponds to an adjusting bolt 2-6.

[0051] Further, the ultrasonic transducer 2-4 is arranged on the inner side of the adjusting bolt 2-6 corresponding thereto, between the center of the upper cover 2-1 and the adjusting bolt 2-6 corresponding thereto.

[0052] Further, a plurality of cross-section notches 2-801 are arranged on the surface of the vibration disc 2-8, the cross-section notches 2-801 are radially distributed on the surface of the vibration disc 2-8 in a radial manner, the surface of the vibration disc 2-8 between adjacent two cross-section notches 2-801 forms a vibration block 2-802, and each vibration block 2-802 corresponds to an ultrasonic transducer 2-4 and an adjusting bolt 2-6 corresponding thereto.

[0053] Further, the thickness of the vibration disc 2-8 is 0.7mm, and the material is stainless steel.

[0054] As shown in Figure 4 the inner end of the cross-section notch 2-801 is close to the inner edge of the vibration disc 2-8, the inner end of the cross-section notch 2-801 is away from the inner edge of the vibration disc 2-8 by a distance of 5.0-15.0mm, in the case that the diameter of the vibration disc is 300mm, the inner end of the cross-section notch 2-801 is away from the inner edge of the vibration disc 2-8 by a distance of 10.0mm, the width of the cross-section notch 2-801 is 2.0mm, and the adjusting bolt 2-6 is arranged close to the outer edge of the vibration disc 2-8.

[0055] The adjusting bolt 2-6 is used to adjust the amplitude of the vibration disc 2-8. The amplitude of the vibration disc can be controlled by adjusting the pre-tightening force of the spring, and the amplitude range is 0.1-0.5mm.

[0056] Further, a gap adjusting member is included, which is a fixed grinding disc adjusting wheel 2-5, the inner edge of which is provided with threads for screwing with the outer wall of the barrel 2-9, and the lower part of the fixed grinding disc adjusting wheel 2-5 is inserted into the groove on the upper surface of the upper cover 2-1. By rotating the fixed grinding disc adjusting wheel 2-5, the barrel 2-9 is driven to move up and down on the fixed grinding disc 2-10 under the action of the threads, and the gap between the grinding surface of the fixed grinding disc 2-10 and the moving grinding disc 3-2 is adjusted to adapt to different materials to be ground and the required particle size. The fixed grinding disc moves up and down by 1.5 mm through the screw thread pair of the fixed grinding disc adjusting wheel 2-5, and the adjustment accuracy is 0.05 mm, and the gap between the fixed grinding disc and the moving grinding disc is 0.1-1.0 mm.

[0057] A conveying auger 3-1 is included, which replaces the rotating shaft and is connected with the motor 5, and the conveying auger 3-1 is inserted into the barrel 2-9 from the lower end of the barrel 2-9.

[0058] As shown in Figure 1 Figure 2 A hopper 1 is included, the lower end discharge port of which is detachably connected with the upper end feed port of the barrel 2-9, so as to facilitate the addition of materials to be ground between the fixed grinding disc 2-10 and the moving grinding disc 3-2, and easy to disassemble and clean.

[0059] A water inlet pipe 6 is included, which is arranged above the upper end feed port of the barrel 2-9 or the hopper 1, and the water inlet pipe 6 can be connected with a water source through an electric switch to control the water inlet amount through the electric switch, and easy to realize automatic water inlet control.

[0060] A base 4 is included, the upper end of which is connected with the bottom end surface of the cylinder body 3-3, and the motor 5 is located in the base 4.

[0061] As shown in Figure 6 A skeleton sealing ring 3-4, a deep groove ball bearing 3-5 and a bearing seat 3-6 are included, the rotating shaft of the conveying auger 3-1 is connected with the motor 5 through the deep groove ball bearing 3-5, the deep groove ball bearing 3-5 is arranged on the bottom surface of the cylinder body 3-3 through the bearing seat 3-6, and the upper end surface of the deep groove ball bearing 3-5 is connected with the bottom surface of the cylinder body 3-3 through the skeleton sealing ring 3-4.

[0062] The adjusting bolt 2-6 is used to adjust the amplitude of the vibration disc 2-8, the greater the spring 2-7 pressure, the smaller the amplitude, and the smaller the spring 2-7 pressure, the greater the amplitude.

[0063] The above technical scheme is used to prepare rice slurry, after the rice is pretreated by cleaning and soaking, the rice enters the hopper 1, and the water outlet pipe 6 starts to discharge water; the wet rice and water are quantitatively transported to the fixed grinding disc 2-10 through the hopper 1, the material cylinder 2-9 and the conveying auger 3-1, the ultrasonic transducer 2-4 fixed on the upper cover 2-1 converts the electric signal into mechanical vibration, which is transmitted to the surface of the vibration disc 2-8, the vibration disc 2-8 is circumferentially distributed with a plurality of cross-section notches 2-801 to amplify the mechanical energy, and finally transmitted to the fixed grinding disc 2-5 and the wet rice to generate high-frequency friction vibration, at the same time, the dynamic grinding disc 3-2 and the conveying auger 3-1 are rotated by the motor 5, the wet rice and water are transported by the conveying auger 3-1, the water and the wet rice are accurately controlled to be quantitatively transported by the grinding machine, and stable and efficient transportation is realized, so that the quality of the product is ensured.

[0064] The wet rice is transported and under the action of centrifugal force, the wet rice is impacted, extruded, sheared and rubbed in the gap between the fixed grinding disc 2-10 and the dynamic grinding disc 3-2, and becomes the rice slurry; the rice slurry moves from inside to outside along the inclined groove channel on the surface of the dynamic grinding disc 3-2, and the wet rice is ground into the rice slurry from coarse to fine; the rice slurry is discharged through the slurry outlet pipe 3-7 below the cylinder body 3-3, and the fine slurry is obtained without passing through the filter screen. The present application realizes one-step fine grinding into slurry, enhances the grinding effect and improves the practicability.

[0065] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the protection scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic pulping apparatus, characterized in that, Including the top cover component and the cylinder block component; The upper cover component includes an upper cover, ultrasonic transducers, adjusting bolts, a vibrating plate, a material cylinder, and a fixed grinding plate. Multiple ultrasonic transducers are fixedly mounted on the upper cover. Multiple helical springs are distributed on the upper surface of the vibrating plate, and the springs are sleeved on the adjusting bolts. The upper ends of the springs abut against the lower end face of the step of the adjusting bolts. The upper end of the adjusting bolts passes through the upper cover and is screwed to the upper cover. The lower end face of the ultrasonic transducers abuts against the upper surface of the vibrating plate. The vibratory feeder is located between the fixed grinding disc and the upper cover. Under the action of the spring, the vibratory feeder is in close contact with the back of the grinding surface of the fixed grinding disc. The lower end of the feed cylinder is fixedly connected to the central feed port of the fixed grinding disc, and the upper end of the feed cylinder passes through the central hole of the upper cover. The cylinder component includes a moving grinding disc, a cylinder body, and a slurry outlet pipe; the moving grinding disc is disposed inside the cylinder body, and the center of the moving grinding disc is connected to a rotating shaft, the lower end of the rotating shaft passing through the bottom surface of the cylinder body and connected to the output shaft of the motor; the slurry outlet pipe is disposed on the bottom surface of the cylinder body and communicates with the inner cavity of the cylinder body; The top cover is sealed to the cylinder body to form a closed space. The fixed grinding disc and the moving grinding disc are located in the closed space, and the grinding surfaces of the fixed grinding disc and the moving grinding disc are set correspondingly.

2. The ultrasonic pulping apparatus according to claim 1, characterized in that, The plurality of ultrasonic transducers are arranged in an evenly spaced pattern around the center of the upper cover; each ultrasonic transducer corresponds to an adjusting bolt.

3. The ultrasonic pulping apparatus according to claim 1, characterized in that, The ultrasonic transducer is located inside the corresponding adjusting bolt, between the center of the upper cover and the corresponding adjusting bolt.

4. The ultrasonic pulping apparatus according to claim 1 or 3, characterized in that, The vibratory plate has multiple cross-sectional notches on its surface, which are radially distributed on the surface of the vibratory plate. The vibratory plate surface between two adjacent cross-sectional notches forms a vibrating block, and each vibrating block corresponds to an ultrasonic transducer and its corresponding adjusting bolt.

5. The ultrasonic grinding apparatus according to claim 4, characterized in that, The width of the cross-sectional notch is 1.5-2.5 mm.

6. The ultrasonic pulping apparatus according to claim 1, characterized in that, The thickness of the vibratory plate is 0.5-1.0 mm.

7. The ultrasonic pulping apparatus according to claim 1, characterized in that, It includes a gap adjusting component, which is a fixed grinding disc adjusting wheel. The inner edge of the fixed grinding disc adjusting wheel is threaded and threadedly connected to the outer wall of the material cylinder. The lower part of the fixed grinding disc adjusting wheel is set in a groove on the upper surface of the upper cover and inserted into the upper cover.

8. The ultrasonic pulping apparatus according to claim 1, characterized in that, Includes a conveying auger, which replaces the rotating shaft and is connected to the motor. The conveying auger is inserted into the material cylinder from the lower port of the material cylinder.

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