Grinding and crushing device and crushing method for food raw materials with uniform granularity

Abstract

The invention relates to the field of food processing, in particular to a grinding and crushing device and method for food raw materials with uniform granularity. Comprising a bin body, a crushing mechanism and a grinding mechanism are arranged in the bin body, a uniform scattering mechanism is arranged in the bin body and located between the crushing mechanism and the grinding mechanism, the uniform scattering mechanism comprises material guide plates and beating wheels matched with the material guide plates, and the two material guide plates are symmetrically arranged in the bin body; one beating wheel is arranged in the bin body and close to the lower end of each material guide plate, a fixed comb tooth structure is arranged at the lower end of each material guide plate, and a movable comb tooth structure is arranged on the surface of each beating wheel. Candy raw materials are continuously sheared and impacted through cooperation of the first comb tooth rod and the second comb tooth rod rotating at a high speed, it is ensured that the particle size of the candy raw materials is uniform, caking is prevented, meanwhile, cooling airflow circularly flows in the cooling channel, the temperature of the heat-sensitive candy raw materials is effectively controlled, and it is prevented that subsequent grinding is affected due to heating softening and adhesion of the heat-sensitive candy raw materials.

Description

Technical Field

[0001] The present invention relates to the field of food processing, and in particular to a grinding and crushing device and a crushing method for food raw materials with uniform particle size. Background Art

[0002] In the food processing industry, grinding and crushing equipment is widely used for raw material refinement, such as crushing and grinding. Tablet candies are made by screening, crushing, granulating, mixing, tableting, and packaging candy ingredients, sweeteners, and flavorings. These ingredients are typically in block or granular form. While existing grinding equipment can achieve a certain degree of candy crushing, it still has shortcomings in controlling particle size uniformity. This often results in over-crushing or incomplete crushing, impacting the quality and efficiency of subsequent processing.

[0003] The Chinese patent authorization publication number CN119819429A disclosed at present is a food processing crusher, which includes a conveying cylinder arranged with a downward tilt at the right end, a feed cylinder fixedly installed at the upper left end of the conveying cylinder, and a discharge port at the lower right end of the conveying cylinder. A shaking device is installed in the conveying cylinder, and an active device is also installed in the conveying cylinder. An impact device and a grinding device are installed on the active device from left to right, and the impact device is used to impact and crush candy raw materials; the inner wall of the conveying cylinder is circumferentially provided with multiple groups of arc groove groups evenly arranged on the left and right, each group of arc groove groups includes multiple arc grooves evenly arranged in the circumferential direction, the shaking device includes an arc slider slidably installed in the arc groove, and a reset spring is connected between the arc slider and the arc groove, and multiple The arc-shaped sliders are fixedly installed with a shaking cylinder, and a through hole is opened at the position of the feed cylinder at the upper left end of the shaking cylinder; the active device includes a motor fixedly installed on the right inner wall of the conveying cylinder, and the motor output shaft is fixedly installed with a rotating shaft, and the left end of the rotating shaft is rotatably connected to the left inner wall of the conveying cylinder, and a matching unit for driving the shaking cylinder to shake the candy raw materials evenly is installed on the left side of the rotating shaft, and two screening units arranged on the left and right are installed in the middle of the rotating shaft, and the screening units are used to screen the processed candy raw materials; the grinding device includes a plurality of circumferentially evenly arranged square spring rods fixedly installed on the outside of the rotating shaft and located between the two screening units, and an arc-structured grinding plate is slidably installed on the end of the square spring rod away from the rotating shaft through a pressure spring.

[0004] According to the above patent, the patent uses an impact device to impact and crush the candy raw materials, thereby ensuring that the harder block candy raw materials can be completely crushed. At the same time, the crushed candy raw materials are ground by a grinding device, thereby making the processed candy raw materials have a uniform particle size, thereby ensuring the quality of the pressed candy after processing.

[0005] While the aforementioned impact crushing and grinding device can improve the crushing efficiency and particle size uniformity of candy ingredients to a certain extent, the heat generated by mechanical friction and impact during the crushing process can cause the material to soften, stick, or even clump, affecting the subsequent grinding particle size accuracy. Therefore, a device for grinding and crushing food ingredients with uniform particle size is needed to meet the processing requirements of heat-sensitive candy ingredients. Summary of the Invention

[0006] In response to the problems existing in the existing technology, a device for grinding and crushing food raw materials with uniform particle size is provided. The device continuously shears and impacts the candy raw materials through the cooperation of a first comb tooth rod and a high-speed rotating second comb tooth rod, ensuring the uniform particle size of the candy raw materials and preventing agglomeration. At the same time, the cooling air flow circulates in the cooling channel to effectively control the temperature of heat-sensitive candy raw materials and prevent them from softening and sticking due to heat.

[0007] In order to solve the problems of the prior art, the present invention provides a food raw material grinding and crushing device with uniform particle size, including a bin body, in which a crushing mechanism and a grinding mechanism are sequentially provided from top to bottom, a uniform scattering mechanism is provided in the bin body and between the crushing mechanism and the grinding mechanism, the uniform scattering mechanism includes a guide plate for guiding the raw materials to slide down and a striking wheel cooperating with the guide plate to disperse the raw materials, two inclined guide plates are symmetrically provided in the bin body, a mounting frame for supporting the upper ends of the two guide plates is provided on the bin body, a striking wheel is rotatably provided in the bin body and near the lower end position of each guide plate, a fixed comb tooth structure is provided at the lower end of each guide plate, and a movable comb tooth structure is provided on the surface of each striking wheel which is alternately arranged with the fixed comb tooth structure, when the striking wheel is continuously rotating, the movable comb tooth structure passes through the gap of the fixed comb tooth structure from top to bottom, forming a continuous shearing and impact action area for the raw materials.

[0008] Preferably, a guide plate fixedly connected to the mounting frame is provided above and near the upper end of each guide plate, a cooling channel is formed between each guide plate and the corresponding guide plate, and a main air channel and a branch air channel connected to each cooling channel are provided on the mounting frame.

[0009] Preferably, the lower end of the guide plate is provided with a plurality of first comb tooth rods at equal intervals along its width direction, and the surface of the striking wheel is provided with a plurality of second comb tooth rods at equal intervals along its axial direction, which are staggered with the first comb tooth rods. All the first comb tooth rods together constitute the fixed comb tooth structure, and all the second comb tooth rods together constitute the movable comb tooth structure.

[0010] Preferably, a plurality of movable comb tooth structures are evenly distributed on the surface of the striking wheel along its circumferential direction.

[0011] Preferably, each second comb tooth rod is fixed with a pointed cone bar along its length direction. When the second comb tooth rod passes between adjacent first comb tooth rods, the raw materials stuck therein are cut downward by the pointed cone bar and are in a compressed shear state.

[0012] Preferably, a support plate fixedly connected to the mounting frame is provided below each guide plate near its upper end, and a movable gap is left between the support plate and the guide plate. The upper end of the guide plate is axially connected to the mounting frame, and the guide plate can vibrate periodically along the rotation direction of the striking wheel with its axial joint as the rotation center.

[0013] Preferably, each support plate is provided with a buffer rubber strip for elastically supporting the corresponding material guide plate, and the buffer rubber strip is arranged on the support plate and close to the lower end of the material guide plate.

[0014] Preferably, a vibration generator is provided in the bin body and between the two striking wheels, which cooperates with the two striking wheels to synchronously drive the two guide plates to vibrate.

[0015] Preferably, the crushing mechanism has two crushing wheels symmetrically arranged in the silo body, and a net bag for preliminarily screening raw materials is provided in the silo body and below the two crushing wheels. A lower slide is provided between the net bag and each guide plate, and the lower end of each lower slide extends obliquely toward the upper half of the corresponding guide plate.

[0016] The present invention also provides a method for grinding and crushing food raw materials with uniform particle size, comprising the following steps: S1. Put the candy raw materials into the silo and crush them preliminarily through two crushing wheels; S2, the crushed candy raw materials are preliminarily screened by the net bag below and fall onto the surface of the inclined guide plate; S3, starting the striking wheel to drive the movable comb structure and the fixed comb structure to alternately shear and impact the candy raw materials, while simultaneously cooling them through the cold air channel; S4. The candy materials that have been broken up and cooled enter the grinding mechanism for final fine grinding.

[0017] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses a uniform breaking mechanism to effectively disperse and evenly process the candy raw materials before entering the grinding stage. After the candy raw materials are initially crushed by the crushing mechanism, they slide evenly along the inclined guide plate and then enter the shearing and impact area formed by the first comb rod and the second comb rod. The high-speed rotating second comb rod and the fixed first comb rod are staggered to continuously impact, pull and shear the candy raw materials, further breaking up large particles and preventing agglomeration. At the same time, the pointed cone bars on the second comb rod enhance the cutting effect, improving the crushing efficiency and particle size consistency. Improving the crushing and dispersion effect effectively ensures that the candy raw materials have good particle size uniformity and stable fluidity before entering the grinding mechanism, thereby improving the subsequent grinding efficiency and the consistency of the output quality. 2. The present invention realizes the continuous delivery of cooling airflow through the cooling channel between the guide plate and the drainage plate in combination with the main airway and the branch airway, so that the candy raw materials are cooled in real time during the process of sliding on the guide plate. The cooling airflow forms a circulating flow in the cooling channel, effectively taking away the heat from the surface of the guide plate and the candy raw materials themselves, and preventing the candy raw materials from entering the grinding area in a softened or large-blocked state. It not only ensures the temperature stability of the candy raw materials during the sliding process, but also improves its flow uniformity, avoiding local blockage or uneven distribution problems. The cooled candy raw materials smoothly enter the processing area between the striking wheel and the fixed comb structure in a stable physical state, providing a good foundation for subsequent efficient dispersion and fine grinding, and are particularly suitable for the processing needs of heat-sensitive candy raw materials; 3. This invention uses the linkage between the slide plate and the connecting rod during the rotation of the striking wheel, combined with the elastic action of the rubber roller and the rubber buffer strip, to generate periodic reciprocating vibrations within the guide plate's movable gap. This effectively prevents the candy ingredients from lingering or accumulating on the guide plate's surface, enhancing their smooth descent and ensuring even distribution and stable delivery to the fixed comb structure below. Simultaneously, the rubber buffer strip absorbs vibrations and shocks, improving the smoothness of the guide plate's movement. The slide plate is periodically pressed down and reset by the second comb rod, forming a continuous drive mechanism. This further ensures the continuity and uniformity of the candy ingredient crushing and dispersion process, thereby improving overall processing efficiency and output quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a device for grinding and crushing food raw materials with uniform particle size according to the present invention; Figure 2 This is a partial three-dimensional cross-sectional view of a device for grinding and crushing food raw materials with uniform particle size according to the present invention. Figure 3 It is a planar cross-sectional view of a device for grinding and crushing food raw materials with uniform particle size according to the present invention; Figure 4 It is a middle cross-sectional view of a device for grinding and crushing food raw materials with uniform particle size according to the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of a food raw material grinding and crushing device with uniform particle size without the bin body of the present invention; Figure 6 It is a planar cross-sectional view of a guide plate and a striking wheel of a device for grinding and crushing food raw materials with uniform particle size according to the present invention; Figure 7 This is a three-dimensional cross-sectional view of the guide plate and the beating wheel of a food raw material grinding and crushing device with uniform particle size according to the present invention. Figure 1 ; Figure 8 This is a three-dimensional cross-sectional view of the guide plate and the beating wheel of a food raw material grinding and crushing device with uniform particle size according to the present invention. Figure 2 ; Figure 9 The present invention Figure 6 A magnified diagram of point A Figure 10 The present invention Figure 7 An enlarged schematic diagram of point B; Figure 11 The present invention Figure 8 An enlarged schematic diagram of point C; Figure 12 The present invention Figure 3 An enlarged schematic diagram of point D; Figure 13 The present invention Figure 7 Enlarged schematic diagram of point E.

[0019] The numbers in the figure are: 1. warehouse body; 11. mounting frame; 111. main air duct; 112. branch air duct; 12. feed port; 2. guide plate; 21. fixed comb tooth structure; 211. first comb tooth rod; 3. striking wheel; 31. movable comb tooth structure; 311. second comb tooth rod; 312. pointed cone bar; 4. drainage plate; 41. cooling channel; 5. support plate; 51. buffer rubber strip; 6. vibration generator; 61. slide plate; 611. hinge part; 612. flat plate; 62. connecting rod; 63. slide rail; 64. rubber roller; 7. crushing wheel; 71. net bag; 72. lower slide plate. DETAILED DESCRIPTION

[0020] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] See also Figures 1-8As shown, a food raw material grinding and crushing device with uniform particle size includes a warehouse body 1, in which a crushing mechanism and a grinding mechanism are sequentially provided from top to bottom, and a uniform scattering mechanism is provided in the warehouse body 1 and between the crushing mechanism and the grinding mechanism, and the uniform scattering mechanism includes a guide plate 2 for guiding the raw materials to slide down and a striking wheel 3 cooperating with the guide plate 2 to disperse the raw materials, two inclined guide plates 2 are symmetrically provided in the warehouse body 1, and a mounting frame 11 is provided on the warehouse body 1 for supporting the upper ends of the two guide plates 2, and a striking wheel 3 is rotatably provided in the warehouse body 1 and near the lower end of each guide plate 2, and a fixed comb tooth structure 21 is provided at the lower end of each guide plate 2, and a movable comb tooth structure 31 is provided on the surface of each striking wheel 3 which is alternately arranged with the fixed comb tooth structure 21, and when the striking wheel 3 is continuously rotating, the movable comb tooth structure 31 passes through the gap of the fixed comb tooth structure 21 from top to bottom, forming a continuous shearing and impact action area for the raw materials.

[0022] A feed port 12 is provided on the top of the bin body 1 .

[0023] The grinding mechanism is not shown in the figures.

[0024] After entering the candy material through the feed port 12 at the top of the bin 1, it undergoes initial crushing by the crushing mechanism. Gravity then forces the crushed candy material downward, gradually dropping it into the area between the crushing and grinding mechanisms. At this point, the candy material encounters two symmetrically arranged inclined guide plates 2, which are arranged at a predetermined angle, allowing the candy material to slide evenly along their surfaces. This downward movement prevents accumulation or deflection, but is naturally guided to the area below where the beating wheels 3 operate.

[0025] The beating wheel 3 then rotates continuously, with the movable comb teeth moving downwards through the gaps between the fixed comb teeth. During this process, the candy material is impacted, pulled, and further dispersed by the high-speed moving comb teeth. This shearing and impacting action is highly continuous and uniform, not only breaking large particles into smaller ones, but also effectively preventing clumping and uneven distribution of the candy material before it enters the grinding mechanism.

[0026] At the same time, because the rotation direction of the beating wheel 3 is properly coordinated with the direction of the candy material's descent, the candy material is repeatedly sheared and struck as it passes through this area, achieving a more refined pre-processing effect. After this stage of processing, the candy material finally falls evenly into the grinding mechanism below, providing an excellent foundation for subsequent fine grinding.

[0027] Throughout the entire process, the uniform scattering mechanism ensures that the candy raw materials discharged from the crushing mechanism are fully broken up and evenly distributed before entering the grinding stage, avoiding the problem of reduced grinding efficiency caused by large differences in candy raw material particle size or uneven distribution. This not only improves the overall operating efficiency of the device, but also ensures the consistency of the output quality.

[0028] See also Figure 4-Figure 9 As shown, a guide plate 4 fixedly connected to the mounting frame 11 is provided above and near the upper end of each guide plate 2, and a cooling channel 41 is formed between each guide plate 4 and the corresponding guide plate 2. A main air channel 111 and a branch air channel 112 connected to each cooling channel 41 are provided on the mounting frame 11.

[0029] As the candy material slides down the guide plate 2, cooling air flows in through the main air passage 111 on the mounting frame 11 and is delivered to the designated location via the branch air passages 112 corresponding to each cooling channel 41. Once the cooling air enters the cooling channel 41 formed between the guide plate 4 and the guide plate 2, it forms a continuous airflow loop within the channel. As the airflow flows, it directly contacts the surface of the guide plate 2 and the falling candy material, rapidly removing heat from both, effectively reducing the temperature.

[0030] During this process, the cooling airflow serves not only to cool the guide plate 2 itself but, more importantly, to control the temperature of the candy materials as they slide down. Since the candy materials may generate a certain amount of heat due to impact and friction during the crushing stage, their temperature may tend to rise. The cooling airflow, in conjunction with the beating wheel 3, can cool and re-crush the candy materials before they enter the grinding area, preventing them from entering the grinding area in a softened or clumping state.

[0031] When processing heat-sensitive candy ingredients, to ensure they do not soften or clump before entering the grinding stage, which would result in poor subsequent grinding results, effective temperature control is achieved through the synergy of cooling airflow and material flow path.

[0032] Specifically, as the candy material slides down the inclined guide plate 2 after being crushed, cooling air flows from the main air channel 111 on the mounting frame 11 and is evenly delivered through the branch air channels 112 connected to each cooling channel 41 into the cooling channels 41 formed between the guide plate 2 and the flow guide plate 4, forming a continuously circulating airflow. This airflow directly contacts the surface of the guide plate 2 and the sliding candy material, quickly removing the heat generated by crushing and friction between the two, thereby controlling the temperature of the candy material within a safe range and maintaining its hardened state.

[0033] Because cooling channels 41 create a high airflow velocity and enhanced heat transfer efficiency within a narrow space, the cooling effect is enhanced. Furthermore, the air flow driven by the rotation of the beating wheel 3 also helps to enhance the turbulence of the cooling airflow and the heat transfer efficiency. This effectively prevents the candy ingredients from remaining softened or clumping together before grinding, ensuring they remain in a stable, dispersed, and hardened state before entering the subsequent grinding stage.

[0034] After cooling, the candy ingredients maintain a stable physical state, flowing evenly and smoothly downward into the processing area between the beating wheel 3 and the fixed comb structure 21, providing an excellent foundation for subsequent dispersion and grinding. The entire process effectively protects heat-sensitive candy ingredients, ensuring they remain in ideal processing condition throughout the crushing and pre-treatment stages.

[0035] See also Figure 4-11 and Figure 13 As shown, a plurality of first comb tooth rods 211 are provided at equal intervals along the width direction at the lower end of the guide plate 2, and a plurality of second comb tooth rods 311 are provided at equal intervals along the axial direction of the striking wheel 3, which are staggered with the first comb tooth rods 211. All the first comb tooth rods 211 together constitute the fixed comb tooth structure 21, and all the second comb tooth rods 311 together constitute the movable comb tooth structure 31.

[0036] As the candy material slides down to the lower end of the guide plate 2, it first contacts the multiple first comb-tooth rods 211, which are evenly spaced along the width of the guide plate 2. Simultaneously, the striking wheel 3 rotates continuously, and the multiple second comb-tooth rods 311, evenly spaced along its axis, rotate synchronously with it. During this rotation, the second comb-tooth rods 311 continuously intersect with the first comb-tooth rods 211, maintaining a certain clearance between them.

[0037] After entering the shear and impact zone formed by the first and second comb bars 211, 311, the candy material is subjected to continuous impact and pulling by the high-speed rotating second comb bars 311. Because the first comb bars 211 are stationary while the second comb bars 311 move with the beating wheel 3, this interaction between the dynamic and static comb teeth shears and disperses the candy material in this zone, further breaking it into smaller particles and effectively preventing clumping. Throughout this process, the candy material passes evenly through the gaps, ensuring a more uniform particle size distribution before entering the grinding mechanism.

[0038] The first comb tooth rod 211 extends along the lower end of the guide plate 2 to the root of the teeth near the striking wheel 3. To ensure that the candy raw materials are sheared before entering the grinding area, the candy raw materials cannot bypass the shearing area when sliding down the guide plate 2 and must enter the shearing action area formed by the fixed comb tooth structure 21 and the movable comb tooth structure 31. The candy raw materials that can pass through the gaps in the first comb tooth rod 211 fall directly downward, while the candy raw materials that cannot pass through the gaps in the first comb tooth rod 211 are crushed again under the shearing action and fall out of the gaps.

[0039] This effectively seals potential channels between the comb teeth, preventing candy particles from falling directly into the grinding area untreated. Simultaneously, the second comb rods 311 rotate continuously with the striking wheel 3, creating a dynamic interlaced shearing pattern with the extended first comb rods 211. Combined with the tapered bars 312, these bars forcibly cut and crush any candy ingredients caught in the gaps, ensuring that all candy ingredients are fully sheared before grinding, improving subsequent grinding efficiency and ensuring consistent particle size.

[0040] See also Figure 4-Figure 8 As shown, a plurality of movable comb tooth structures 31 are evenly distributed on the surface of the striking wheel 3 along its circumferential direction.

[0041] When the beating wheel 3 begins to rotate, the evenly distributed movable comb teeth 31 along the circumference enhance the contact efficiency between the second comb teeth rods 311 and the candy material, ensuring that each second comb teeth rod 311 fully participates in the candy material processing process, thereby improving the overall crushing and dispersion effect. This allows the candy material to be broken up more finely, providing a good particle size foundation for the subsequent grinding process.

[0042] See also Figure 4-Figure 8 and Figure 11 As shown, each second comb tooth rod 311 is fixed with a pointed cone bar 312 along its length direction. When the second comb tooth rod 311 passes between adjacent first comb tooth rods 211, the raw materials stuck therein are cut downward by the pointed cone bar 312 and are in a compressed shear state.

[0043] As the second comb-tooth rods 311 rotate with the striking wheel 3 and pass through the gaps between adjacent first comb-tooth rods 211, the tapered strips 312 fixed thereto cut into the candy material trapped in the gaps. As the second comb-tooth rods 311 continue to move, the tapered strips 312 exert downward pressure on the candy material along their length, creating a compressive shearing state between the candy material and the first comb-tooth rods 211. This effectively disrupts the structural connections within the candy material, further breaking it down into finer particles.

[0044] During this process, the tapered strips 312 enhance the penetration of the candy material, increasing the cutting effect on the candy material that would otherwise be subjected to impact or compression, thereby improving overall crushing efficiency, ensuring the consistency of the output particle size, and providing a more uniform candy material base for subsequent grinding.

[0045] See also Figure 4-Figure 9 As shown, a support plate 5 fixedly connected to the mounting frame 11 is provided below each guide plate 2 near its upper end, and a movable gap is left between the support plate 5 and the guide plate 2. The upper end of the guide plate 2 is axially connected to the mounting frame 11, and the guide plate 2 can periodically vibrate along the rotation direction of the striking wheel 3 with its axial joint as the rotation center.

[0046] When the striking wheel 3 rotates, a movable gap is left between the support plate 5 and the guide plate 2 to allow the movement thereof. During operation, the guide plate 2 generates periodic vibrations along the rotation direction of the striking wheel 3 within the movable gap.

[0047] The periodic vibration effectively prevents the candy material from accumulating or settling on the surface of guide plate 2, enhancing its smoothness. Furthermore, the vibration promotes a more even distribution of the candy material across the surface of guide plate 2, allowing for a stable transport of the material toward the fixed comb structure 21 below, further ensuring the continuity and stability of the crushing and dispersion process.

[0048] See also Figure 4-Figure 8 、 Figure 10 and Figure 11 As shown, each support plate 5 is provided with a buffer rubber strip 51 for elastically supporting the corresponding material guide plate 2 . The buffer rubber strip 51 is arranged on the support plate 5 and close to the lower end of the material guide plate 2 .

[0049] When the guide plate 2 experiences periodic vibrations at its pivot point, the rubber cushion strip 51 on the support plate 5 near the lower end of the guide plate 2 undergoes elastic deformation. The rubber cushion strip 51 provides elastic support for the guide plate 2 during vibration, absorbing the impact force generated by the movement of the guide plate 2 through its own compression and rebound effects, making the swing of the guide plate 2 more stable and providing a certain damping effect.

[0050] See also Figure 2-Figure 9 and Figure 12 As shown, a vibration generator 6 is provided in the bin body 1 and between the two striking wheels 3 to synchronously drive the two guide plates 2 to vibrate.

[0051] The vibration generator 6 includes a slide plate 61 vertically slidably arranged on the warehouse body 1 and a connecting rod 62 respectively hinged to the two material guide plates 2.

[0052] A hinge portion 611 is provided at the upper end of the slide plate 61 , and one end of each connecting rod 62 is hinged to the hinge portion 611 , and the other end is hinged to the corresponding material guide plate 2 .

[0053] The warehouse body 1 is provided with a slide rail 63 for the slide plate 61 to slide therein and a rubber roller 64 in contact with the hinge portion 611 , and the rubber roller 64 is provided below the hinge portion 611 .

[0054] A flat plate 612 is disposed laterally at the lower end of the slide plate 61 toward each beating wheel 3 , and a feeding chute is provided on the flat plate 612 to prevent candy raw materials from piling up.

[0055] As the striking wheel 3 rotates, the second comb-toothed rods 311 evenly distributed on its periphery rotate synchronously. When the ends of the second comb-toothed rods 311 extending outward from the striking wheel 3 rotate to a position opposite to the flat plate 612, the front ends of the second comb-toothed rods 311 first come into contact with the surface of the flat plate 612.

[0056] As the striking wheel 3 continues to rotate, the second comb-toothed rod 311 slides along the surface of the flat plate 612, exerting downward pressure. This compresses the flat plate 612, causing the rubber roller 64 and the rubber cushion strip 51 to gradually deform and simultaneously accumulate energy. When the second comb-toothed rod 311 continues to rotate past the highest contact point and completely disengages from the flat plate 612, the elastic restoring force of the rubber roller 64 and the rubber cushion strip 51 causes the flat plate 612 to reset. These forces then gradually rebound, completing a single striking and rebound cycle.

[0057] When the two striking wheels 3 rotate continuously so that the second comb rod 311 periodically passes through the flat plate 612 , the two guide plates 2 are in a reciprocating vibration state under the pulling of the connecting rod 62 and the resetting cooperation of the rubber roller 64 and the buffer rubber strip 51 .

[0058] Specifically, as the two striking wheels 3 continue to rotate, the second comb-toothed rods 311 on their surfaces periodically pass the flat plate 612 disposed transversely at the lower end of the slide plate 61. When the second comb-toothed rods 311 contact the flat plate 612 and continue to rotate, they exert downward pressure on the flat plate 612, causing the slide plate 61 to slide downward along the slide rail 63 on the chamber 1. At this point, the hinged portion 611 moves downward, compressing the rubber roller 64 and pulling the guide plate 2 downward via the connecting rod 62. This causes both the rubber roller 64 and the rubber cushion strip 51 beneath the guide plate 2 to undergo elastic deformation.

[0059] As the second comb rod 311 continues to rotate and disengages from the flat plate 612, the pressure on the flat plate 612 gradually dissipates. Driven by the rebound action of the rubber roller 64 and the rubber cushion strip 51, the slide plate 61 begins to return upward along the guide rail 63, driving the hinge 611 back to its initial position. The up-and-down reciprocating motion of the slide plate 61 is transmitted to the two guide plates 2 via the connecting rod 62, maintaining a constant reciprocating vibration. This enhances the fluidity and uniformity of the candy ingredients on the guide plates 2, preventing material blockage and uneven distribution.

[0060] See also Figure 2-Figure 4 As shown, the crushing mechanism has two crushing wheels 7 symmetrically arranged in the silo 1, and a net bag 71 for preliminarily screening raw materials is provided in the silo 1 and below the two crushing wheels 7. A lower slide 72 is provided between the net bag 71 and each guide plate 2, and the lower end of each lower slide 72 extends obliquely toward the upper half of the corresponding guide plate 2.

[0061] After the two crushing wheels 7 have completed the initial crushing of the candy material, the crushed candy material falls downward under the action of gravity and lands in a net bag 71 located below the crushing wheels 7. The net bag 71 performs a preliminary screening of the candy material, with smaller particles passing through the mesh of the net bag 71, while larger pieces of candy material that have not been fully crushed are retained above the net bag 71, awaiting further crushing.

[0062] The candy material passing through the net bag 71 then slides downward along the surface of each lower slide plate 72, so that the candy material is accurately delivered to the upper half of the guide plate 2. It is ensured that the candy material is evenly dispersed when it slides down to the lower half of the guide plate 2, providing a basis for subsequent breaking up.

[0063] A method for grinding and crushing food raw materials with uniform particle size, applied to the above-mentioned device for grinding and crushing food raw materials with uniform particle size, comprises the following steps: S1, put the candy raw materials into the bin 1 and perform preliminary crushing through two crushing wheels 7; S2, the crushed candy raw materials are preliminarily screened by the net bag 71 below and fall onto the surface of the inclined guide plate 2; S3, starting the striking wheel 3 to drive the movable comb structure 31 and the fixed comb structure 21 to alternately shear and impact the candy raw materials, while simultaneously cooling them through the cold air channel; S4. The candy materials that have been broken up and cooled enter the grinding mechanism for final fine grinding.

[0064] The present invention enhances the uniformity of candy material dispersion during the crushing and pre-processing stages through the synergistic effects of the uniform breaking mechanism, cooling channel 41, and vibration of guide plate 2. The first comb bar 211, along with the high-speed rotating second comb bar 311 and its tapered bars 312, continuously shears, impacts, and cuts the candy material, achieving efficient crushing and preventing clumping, ensuring uniform particle size.

[0065] Simultaneously, cooling air circulates within the cooling channel 41 between the guide plate 2 and the drain plate 4, effectively controlling the temperature of heat-sensitive candy ingredients and preventing them from softening and sticking due to heat. Furthermore, the beating wheel 3, in conjunction with the vibration generator 6, drives the guide plate 2 to generate periodic vibrations, enhancing the fluidity of the candy ingredients and preventing accumulation and blockage. Together, these ensure excellent physical stability and uniform distribution of the candy ingredients before they enter the grinding mechanism, thereby improving subsequent grinding efficiency and consistent output quality. This is particularly suitable for processing heat-sensitive candy ingredients.

[0066] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. A device for grinding and crushing food raw materials with uniform particle size, comprising a silo, wherein a crushing mechanism and a grinding mechanism are sequentially arranged in the silo from top to bottom; characterized in that: A uniform scattering mechanism is provided in the bin body and between the crushing mechanism and the grinding mechanism, and the uniform scattering mechanism includes a guide plate for guiding the raw materials to slide down and a striking wheel cooperating with the guide plate to disperse the raw materials; two inclined guide plates are symmetrically provided in the bin body, and a mounting frame for supporting the upper ends of the two guide plates is provided on the bin body; a striking wheel is rotatably provided in the bin body and near the lower end of each guide plate; a fixed comb tooth structure is provided at the lower end of each guide plate, and a movable comb tooth structure is provided on the surface of each striking wheel which is alternately arranged with the fixed comb tooth structure. When the striking wheel is in a continuous rotation state, the movable comb tooth structure passes through the gap of the fixed comb tooth structure from top to bottom, forming a continuous shearing and impact action area for the raw materials.

2. The device for grinding and crushing food raw materials with uniform particle size according to claim 1, characterized in that: A guide plate fixedly connected to the mounting frame is provided above and near the upper end of each guide plate. A cooling channel is formed between each guide plate and the corresponding guide plate. The mounting frame is provided with a main air channel and a branch air channel connected to each cooling channel.

3. The device for grinding and crushing food raw materials with uniform particle size according to claim 2, characterized in that: The lower end of the guide plate is provided with a plurality of first comb tooth rods at equal intervals along its width direction, and the surface of the striking wheel is provided with a plurality of second comb tooth rods at equal intervals along its axial direction, which are staggered with the first comb tooth rods. All the first comb tooth rods together constitute the fixed comb tooth structure, and all the second comb tooth rods together constitute the movable comb tooth structure.

4. The device for grinding and crushing food raw materials with uniform particle size according to claim 3, characterized in that: A plurality of movable comb tooth structures are evenly distributed on the surface of the striking wheel along its circumferential direction.

5. The device for grinding and crushing food raw materials with uniform particle size according to claim 4, characterized in that: A pointed cone bar is fixedly provided on each second comb tooth rod along its length direction. When the second comb tooth rod passes between adjacent first comb tooth rods, the raw materials stuck therein are cut downward by the pointed cone bar and are in a compressed shear state.

6. The device for grinding and crushing food raw materials with uniform particle size according to claim 2, characterized in that: A support plate fixedly connected to the mounting frame is provided below each guide plate near its upper end, with a movable gap left between the support plate and the guide plate. The upper end of the guide plate is axially connected to the mounting frame, and the guide plate can vibrate periodically along the rotation direction of the striking wheel with its axial connection as the rotation center.

7. The device for grinding and crushing food raw materials with uniform particle size according to claim 6, characterized in that: Each support plate is provided with a buffer rubber strip for elastically supporting the corresponding material guide plate. The buffer rubber strip is arranged on the support plate and close to the lower end of the material guide plate.

8. The device for grinding and crushing food raw materials with uniform particle size according to claim 7, characterized in that: A vibration generator is provided in the warehouse body and between the two striking wheels, and is used to drive the two material guide plates to vibrate synchronously with the two striking wheels.

9. The device for grinding and crushing food raw materials with uniform particle size according to claim 1, characterized in that: The crushing mechanism has two crushing wheels symmetrically arranged in the bin body. A net bag for preliminarily screening raw materials is provided in the bin body and below the two crushing wheels. A lower slide is provided between the net bag and each guide plate. The lower end of each lower slide extends obliquely toward the upper half of the corresponding guide plate.

10. A method for grinding and crushing food raw materials with uniform particle size, applied to a device for grinding and crushing food raw materials with uniform particle size according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Put the candy raw materials into the silo and crush them preliminarily through two crushing wheels; S2, the crushed candy raw materials are preliminarily screened by the net bag below and fall onto the surface of the inclined guide plate; S3, starting the striking wheel to drive the movable comb structure and the fixed comb structure to alternately shear and impact the candy raw materials, while simultaneously cooling them through the cold air channel; S4. The candy materials that have been broken up and cooled enter the grinding mechanism for final fine grinding.

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