Cutting head of shearing machine

Abstract

The utility model discloses a cutting head of a shearing machine, and provides the following scheme aiming at the problem that the long-term storage stability of emulsion is influenced due to the facts that the particle size distribution of prepared colostrum is in a wider interval range and the distribution in the range is extremely non-uniform due to the fact that the sizes of emulsion particles are uneven and the whole body is too large in a cutting head combination mode of an existing device. Comprising a base and a fixing sleeve installed on the surface of the base. According to the utility model, the combination of the second-stage tool bit and the third-stage tool bit is adopted, the tooth density of the third-stage tool bit is large, the number of circles of the teeth is large, the second-stage tool bit firstly carries out preliminary shearing on the emulsion, and then the third-stage tool bit carries out fine shearing, so that the design ensures that the particle size of the emulsion can be gradually thinned to the required target size from the larger size; the finally obtained emulsion has smaller and more uniform particle size distribution, the problems of wide particle size distribution, non-uniformity and large emulsion particles of primary emulsion generated by a traditional tool bit can be effectively solved, and the quality and the stability of the emulsion are remarkably improved.

Description

Technical Field

[0001] This utility model relates to a cutting head, specifically a shearing machine cutting head, belonging to the technical field of shearing emulsifiers. Background Technology

[0002] In many industrial production fields today, such as food processing, cosmetics manufacturing, pharmaceuticals and chemicals, the preparation and processing of emulsions is a key production link. As the core equipment for achieving efficient preparation and fine processing of emulsions, the performance of the cutting head component of the multi-functional shear emulsifier plays a decisive role in the quality of the emulsion.

[0003] In the prior art, such as the shear emulsifier disclosed in publication number CN221452427U, the start and stop of the stirring motor and the shear motor are independently controlled by a stirring switch and a shear switch respectively, allowing independent control of the cutter head and the stirring part to meet different mixing requirements. However, the above-mentioned prior art solutions have the following shortcomings:

[0004] 1. Insufficient processing efficiency and continuity

[0005] The shear emulsifier disclosed in announcement number CN221452427U is typically used for intermittent production, requiring batch processing of materials, resulting in low production efficiency. Furthermore, the single-pass processing capacity of the insertion-type equipment is limited by the container capacity, making it unsuitable for large-scale industrial production.

[0006] 2. Inaccurate control of process parameters

[0007] When shearing samples with an insertion shear press, parameter fluctuations (such as temperature and shearing time) may occur between batches, affecting product consistency. It is impossible to control shearing intensity and time in real time by adjusting parameters such as flow rate, pressure, and rotation speed, making it unsuitable for process-sensitive emulsions (such as nanoemulsions).

[0008] 3. Poor cutting effect

[0009] Linear velocity difference: The rotor linear velocity of online pipeline equipment can reach 40m / s. The material flows at high speed in the pipeline and is repeatedly subjected to multi-stage shearing (rotor-stator structure). However, insertion equipment is usually difficult to achieve the same high speed due to structural limitations. Moreover, the shearing area is relatively fixed and the material circulation path is limited. This may result in local uneven shearing and a wider emulsion particle size distribution, leading to poor shearing and dispersion effects.

[0010] Limitations of convective shearing: Insertion devices rely on convective mixing within the container, which may lead to uneven shearing due to differences in material flowability;

[0011] Temperature control limitations: Insertion devices rely on external cooling, and prolonged batch shearing may cause localized overheating, affecting the activity of heat-sensitive components and related impurities.

[0012] 4. High risk of pollution

[0013] Insertion shearing machines require manual intervention (such as opening the lid, transferring materials, etc.), which increases the possibility of contamination and cannot avoid external contamination during the production process, posing a risk of cross-contamination.

[0014] 5. High cleaning and maintenance costs

[0015] Cleaning difficulty: Insertion-type devices require disassembly of the shear head for cleaning and cannot be cleaned directly through pipes;

[0016] Maintenance complexity: Insertion devices are prone to mechanical failures due to their multi-motor drive and complex structure, resulting in numerous maintenance points.

[0017] 6. Poor compatibility

[0018] Insertion shearing machines have relatively limited functionality, and multiple steps require separate equipment processing, increasing operational complexity and making them unsuitable for complex formulations.

[0019] 7. Inadequate space occupation and operational safety.

[0020] Insertion shearing machines are large in size (especially large-capacity batch equipment), and there is a risk of mechanical injury when operated manually. Operators need to be in close contact with high-speed rotating parts, which makes them less safe.

[0021] The aforementioned shear emulsifier has significant drawbacks in use. The resulting primary emulsion has a wide range of particle size distribution, and the distribution within this range is extremely uneven, resulting in inconsistent particle sizes and an overall large size, which affects the long-term storage stability of the emulsion. Utility Model Content

[0022] The purpose of this invention is to provide a shearing cutter head to solve the problem that the primary emulsion particle size distribution produced by the above-mentioned device cutter head combination method exhibits a wide range and is extremely uneven within this range, resulting in uneven particle size and an overall large size, which affects the long-term storage stability of the emulsion.

[0023] The present invention achieves the above objectives through the following technical solution: a shearing machine blade, comprising a base and a fixing sleeve mounted on the surface of the base;

[0024] A bottom bushing is provided above the fixed sleeve. The surface of the bottom bushing is integrally formed with a discharge port valve. Two tertiary cutter heads and one secondary cutter head are sequentially arranged on the surface of the bottom bushing. An upper bushing is provided on the side of the secondary cutter head away from the tertiary cutter head. A connecting flange pipe is integrally formed on the surface of the upper bushing. Rotors are provided inside both the tertiary and secondary cutter heads. Stators are provided on the outside of the rotors. The stators are fixedly installed inside the tertiary and secondary cutter heads respectively. The rotors are connected to the output shaft of a servo motor installed in the fixed sleeve.

[0025] As a further improvement of this utility model, an annular channel is provided at the center of both the third-stage and second-stage cutter heads.

[0026] As a further improvement of this utility model: teeth are provided on the surface of the stator inside the third-stage cutter head and the second-stage cutter head, and grooves are provided on the surface of the rotor.

[0027] As a further improvement of this invention, the third-stage cutter head has a higher tooth density and more tooth turns than the second-stage cutter head.

[0028] As a further improvement of this utility model: both the third-stage cutter head and the second-stage cutter head have mounting grooves on their surfaces, and sealing gaskets are embedded in the mounting grooves.

[0029] As a further embodiment of this utility model: a tee connecting flange is provided on the surface of the connecting flange pipe, and the connecting flange pipe and the tee connecting flange are connected by a flange connecting clamp. The other two ports of the tee connecting flange are respectively connected to the oil phase pipeline and the water phase pipeline through pipes.

[0030] As a further embodiment of this utility model: a hinge seat is fixed on the surface of the fixed sleeve, a sleeve is rotatably connected inside the hinge seat, an L-shaped fastener is slidably connected to the surface of the sleeve, a locking bolt is slidably connected to the through hole opened on the surface of the L-shaped fastener, one end of the locking bolt is threadedly connected to the inside of the sleeve, and a slot adapted to the L-shaped snap-fit ​​part of the L-shaped fastener is opened on the surface of the upper bushing.

[0031] The beneficial effects of this utility model are:

[0032] This invention utilizes a combination of a bottom bushing, a discharge port valve, a three-stage cutter head, a two-stage cutter head, an upper bushing, a rotor, teeth, a sealing gasket, an annular channel, an insert groove, a hinge seat, a sleeve, and a stator. It employs a combination of two-stage and three-stage cutter heads, with the three-stage cutter head having a high tooth density and numerous turns. The two-stage cutter head first performs preliminary shearing of the emulsion, followed by fine shearing by the three-stage cutter head. This design ensures that the emulsion particle size can be gradually refined from a larger size to the required smaller size, resulting in a final emulsion with smaller and more uniform particle size distribution. This effectively overcomes the problems of wide and uneven initial emulsion particle size distribution and large particles caused by traditional cutter heads, significantly improving the quality and stability of the emulsion.

[0033] The teeth on the stator surface and the grooves on the rotor work together to generate a strong shearing and stirring effect on the emulsion through their relative motion. This can break larger particles in the emulsion into smaller units, achieving efficient shear emulsification, which helps to improve the dispersibility and uniformity of the emulsion and ensure the high quality of the product.

[0034] The integrated discharge port on the bottom bushing features a valve that precisely controls the emulsion's discharge speed and flow rate. By adjusting the valve's opening, the residence time of the emulsion within the shearing machine can be controlled, allowing for flexible adjustment of the shearing effect according to different product requirements. During production, operators can extend or shorten the emulsion's residence time within the cutter head based on actual conditions, thereby obtaining a particle size distribution and emulsion quality that better meet product requirements and improving the controllability of the production process. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0036] Figure 2 This is a schematic diagram of the rotor, teeth, and annular channel in this utility model;

[0037] Figure 3 This is a schematic diagram of the mounting groove and stator in this utility model;

[0038] Figure 4 This is a schematic diagram of the structure of the sleeve, locking bolt, and hinge seat in this utility model;

[0039] In the diagram: 1. Base; 2. Fixing sleeve; 3. Bottom bushing; 4. Discharge port valve; 5. Three-stage cutter head; 6. Two-stage cutter head; 7. Upper bushing; 8. Rotor; 9. Teeth; 10. Sealing gasket; 11. Annular channel; 12. Insert groove; 13. Connecting flange pipe; 14. Flange connecting clamp; 15. T-junction connecting flange pipe; 16. Hinge seat; 17. Sleeve; 18. L-shaped fastener; 19. Locking bolt; 20. Slot; 21. Stator. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 protection scope of the present utility model.

[0041] Example 1

[0042] like Figures 1 to 4 As shown, a shearing machine blade includes a base 1 and a fixing sleeve 2 mounted on the surface of the base 1;

[0043] A bottom bushing 3 is provided above the fixed sleeve 2. The surface of the bottom bushing 3 is integrally formed with a discharge port valve 4. Two tertiary cutter heads 5 and one secondary cutter head 6 are sequentially arranged on the surface of the bottom bushing 3. An upper bushing 7 is provided on the side of the secondary cutter head 6 away from the tertiary cutter head 5. A connecting flange pipe 13 is integrally formed on the surface of the upper bushing 7. A rotor 8 is provided inside both the tertiary cutter head 5 and the secondary cutter head 6. A stator 21 is provided on the outside of the rotor 8. The stator 21 is fixedly installed in the tertiary cutter head 5 and the secondary cutter head 6 respectively. The rotor 8 is connected to the output shaft of the servo motor installed in the fixed sleeve 2.

[0044] Two tertiary cutter heads 5 and one secondary cutter head 6 are sequentially arranged. This layout is based on the optimization consideration of the emulsion shearing and emulsification process. First, after the emulsion enters the shearing machine, it first passes through the secondary cutter head 6 for preliminary shearing and dispersion. Due to its own structural characteristics, the secondary cutter head 6 can perform relatively coarse processing on the emulsion, initially breaking down larger emulsion particles. Then, the emulsion passes through two tertiary cutter heads 5. The tertiary cutter heads 5 have a high tooth density and many turns, which can perform fine shearing and refining on the emulsion, making the emulsion particles smaller. After multiple shearing and refining processes, the particle size distribution of the emulsion becomes more uniform, meeting the product's requirements for emulsion particle size.

[0045] Furthermore, an annular channel 11 is provided at the center of both the third-stage cutter head 5 and the second-stage cutter head 6.

[0046] The annular channel 11 provides a clear path for the emulsion to flow within the cutter head. When the emulsion enters the cutter head, it flows along the annular channel 11, making the emulsion flow more orderly and controllable. This avoids turbulent or disordered flow of the emulsion within the cutter head, ensuring that the emulsion can pass evenly through the shearing region between the stator 21 and the rotor 8, thereby ensuring that each part of the emulsion receives a relatively uniform shearing action.

[0047] Furthermore, teeth 9 are provided on the surface of the stator 21 inside the third-stage cutter head 5 and the second-stage cutter head 6, and grooves are provided on the surface of the rotor 8.

[0048] As the emulsion passes through the cutter head, the grooves of the rotor 8 and the teeth 9 of the stator 21 cut the emulsion like scissors, breaking larger droplets or particles in the emulsion into smaller units, thereby achieving shear emulsification of the emulsion. For some larger emulsion particles, the teeth 9 and the grooves can apply shearing forces from different directions, subjecting them to shearing action in multiple directions, effectively improving the efficiency and effect of shearing.

[0049] Furthermore, the teeth 9 of the third-stage cutter head 5 have a higher density and more turns than those of the second-stage cutter head 6.

[0050] The secondary cutter head 6 has a relatively small tooth density and number of teeth, which performs preliminary crushing and dispersion of the emulsion, and pre-treats the larger emulsion particles, so that the particle size distribution of the emulsion begins to become more uniform. Subsequently, the emulsion enters the tertiary cutter head 5, which has more teeth and a higher tooth density, and can perform more precise treatment of the emulsion, refining the particle size to the required degree, thus ensuring the quality of the final product.

[0051] Example 2

[0052] Improvements based on Example 1:

[0053] Furthermore, both the third-stage cutter head 5 and the second-stage cutter head 6 have mounting grooves 12 on their surfaces, and sealing gaskets 10 are embedded in the mounting grooves 12.

[0054] The sealing gasket 10 in the insert groove 12 can effectively fill the gaps between the cutter heads or between the cutter head and other components, preventing the emulsion from leaking from these parts under pressure. The sealing gasket 10 will form a sealing layer on the contact surface, ensuring that the emulsion is confined inside the cutter head and within the designed flow channel, thus ensuring the smooth progress of the shear emulsification process.

[0055] Furthermore, a tee connecting flange 15 is provided on the surface of the connecting flange 13. The connecting flange 13 and the tee connecting flange 15 are connected by a flange connecting clamp 14. The other two ports of the tee connecting flange 15 are respectively connected to the oil phase pipeline and the water phase pipeline through pipes.

[0056] The oil phase and water phase pipelines connected to the tee flange pipe 15 allow for convenient adjustment of the feed ratio of the oil and water phases. Depending on different product requirements, the flow rates of the oil and water phases can be precisely controlled by adjusting the valves or flow control devices on their respective pipelines, thereby enabling flexible adjustment of the emulsion formulation.

[0057] Furthermore, a hinge seat 16 is fixed to the surface of the fixed sleeve 2, a sleeve 17 is rotatably connected inside the hinge seat 16, an L-shaped fastener 18 is slidably connected to the surface of the sleeve 17, a locking bolt 19 is slidably connected to the through hole opened on the surface of the L-shaped fastener 18, one end of the locking bolt 19 is threadedly connected to the inside of the sleeve 17, and a slot 20 adapted to the L-shaped snap-fit ​​part of the L-shaped fastener 18 is opened on the surface of the upper bushing 7.

[0058] The L-shaped fastener 18 is slidably connected to the surface of the sleeve 17, and the locking bolt 19 is passed through the through hole opened on the surface of the L-shaped fastener 18, so that one end of the locking bolt 19 is threaded into the sleeve 17. By adjusting the position of the L-shaped fastener 18, its L-shaped snap-fit ​​part is snapped into the snap groove 20 opened on the surface of the upper bushing 7. Then the locking bolt 19 is tightened to firmly fix the upper bushing 7 in the corresponding position, providing structural stability for the entire cutter head.

[0059] Working principle: When in use, first install the bottom bushing 3 on top of the fixed sleeve 2, and add a valve 4 to the integrally formed discharge port on the surface of the bottom bushing 3. The valve should have good sealing and adjustability and be able to control the opening and closing of the discharge port and the flow rate as needed.

[0060] Subsequently, two third-stage cutter heads 5 and one second-stage cutter head 6 are installed on the surface of the bottom bushing 3 in sequence. During the installation process, the rotor 8 is installed into the interior of the third-stage cutter head 5 and the second-stage cutter head 6 respectively, so that the outer side of the rotor 8 is tightly attached to the stator 21. At the same time, the rotor 8 is connected to the output shaft of the servo motor installed on the fixed sleeve 2 to ensure the concentricity and connection between the motor output shaft and the rotor 8, and to avoid shaft offset or loosening during operation.

[0061] The annular channel 11 at the center of the third-stage cutter head 5 and the second-stage cutter head 6 should have a smooth inner wall to ensure smooth flow of the emulsion. At the same time, a sealing gasket 10 is installed in the mounting groove 12 on the surface of the third-stage cutter head 5 and the second-stage cutter head 6 to ensure the sealing of the cutter head connection and prevent emulsion leakage.

[0062] Install the upper bushing 7 on the side of the secondary cutter head 6 away from the tertiary cutter head 5. At the same time as installing the upper bushing 7, connect the integrally formed connecting flange pipe 13 to the tee connecting flange pipe 15. Use the flange connecting clamp 14 to firmly connect the connecting flange pipe 13 and the tee connecting flange pipe 15 together to ensure the tightness and sealing of the connection. The other two ports of the tee connecting flange pipe 15 are connected to the oil phase pipeline and the water phase pipeline respectively through pipes. The pipe connection should use a sealed joint to prevent the emulsion from leaking during the transmission process.

[0063] The L-shaped fastener 18 is slidably connected to the surface of the sleeve 17, and the locking bolt 19 is passed through the through hole opened on the surface of the L-shaped fastener 18, so that one end of the locking bolt 19 is threaded into the sleeve 17. By adjusting the position of the L-shaped fastener 18, its L-shaped snap-fit ​​part is snapped into the snap groove 20 opened on the surface of the upper bushing 7. Then the locking bolt 19 is tightened to firmly fix the upper bushing 7 in the corresponding position, providing structural stability for the entire cutter head.

[0064] After installing the shearing head, connect the shearing machine to a stable power supply and check that all connections are secure. Check that the discharge valve 4 is closed. Simultaneously, connect the oil phase and water phase pipelines to both ends of the tee flange 15, ensuring tight and leak-free connections. Inject predetermined proportions of oil and water phase materials into the oil and water phase pipelines respectively. Then, start the servo motor mounted on the fixed sleeve 2. Adjust the motor speed to a suitable range according to the specific emulsion shearing requirements. Driven by the motor, the rotor 8 begins to rotate. The relative motion between the rotor 8 and the stator 21 generates shearing force. Due to the ratio of the three-stage cutter head 5 to the two-stage cutter head... The teeth 9 of the primary cutter head 6 have a high density and many turns. During the shearing process, the emulsion first passes through the secondary cutter head 6. The stator 21 and rotor 8 of the secondary cutter head 6 use their teeth 9 and grooves to perform preliminary shearing and dispersion of the emulsion, so that the emulsion forms a certain flow and shearing action in the annular channel 11, which initially reduces the size of the emulsion particles. The emulsion after being processed by the secondary cutter head 6 then enters the tertiary cutter head 5. The stator 21 and rotor 8 of the tertiary cutter head 5 will further refine the emulsion. In this process, because the tertiary cutter head 5 has more teeth 9 and more turns, it can generate a stronger shearing action on the emulsion, further refine the emulsion particles, and make their particle size more uniform.

[0065] During operation, the opening of the discharge port valve 4 can be adjusted according to the state of the emulsion and the required shearing effect to control the residence time of the emulsion in the shearing machine, so that the emulsion stays in the cutter head for a longer time to obtain a more uniform particle size distribution. After running for a period of time, the state of the emulsion flowing out of the discharge port is observed, and the particle size of the emulsion is measured using a particle size measuring instrument such as a laser particle size analyzer. Based on the measurement results, parameters such as motor speed, opening of discharge port valve 4, or material ratio are adjusted until the desired particle size distribution and emulsion quality are obtained.

[0066] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0067] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A shear head, comprising a base (1) and a fixed sleeve (2) mounted on the surface of the base (1); characterized in that: The upper part of the fixed sleeve (2) is provided with a bottom bushing (3), the surface of the bottom bushing (3) is integrally formed with a discharge port adding valve (4), the surface of the bottom bushing (3) is sequentially provided with two three-stage tool bits (5) and a two-stage tool bit (6), the side of the two-stage tool bit (6) away from the three-stage tool bit (5) is provided with an upper bushing (7), the surface of the upper bushing (7) is integrally formed with a connecting flange pipe (13), the interiors of the three-stage tool bit (5) and the two-stage tool bit (6) are provided with rotors (8), the outer sides of the rotors (8) are provided with stators (21), the stators (21) are fixedly installed in the three-stage tool bit (5) and the two-stage tool bit (6) respectively, and the rotors (8) are connected with the output shaft of the servo motor installed in the fixed sleeve (2).

2. The shear head of claim 1, wherein: The interiors of the three-stage tool bit (5) and the two-stage tool bit (6) are both provided with annular channels (11) at the central positions.

3. The shear head of claim 1, wherein: The surfaces of the stators (21) in the interiors of the three-stage tool bit (5) and the two-stage tool bit (6) are both provided with teeth (9), and the surface of the rotor (8) is provided with a bite groove.

4. The shear head of claim 1, wherein: The density of the teeth (9) of the three-stage tool bit (5) is greater than that of the two-stage tool bit (6), and the number of turns of the three-stage tool bit (5) is more than that of the two-stage tool bit (6).

5. The shear head of claim 1, wherein: The surfaces of the three-stage tool bit (5) and the two-stage tool bit (6) are both provided with embedding grooves (12), and the embedding grooves (12) are embedded with sealing gaskets (10).

6. The shear head of claim 1, wherein: The surface of the connecting flange pipe (13) is provided with a three-way connecting flange pipe (15), the connecting flange pipe (13) and the three-way connecting flange pipe (15) are connected through a flange connecting clamp (14), and the other two ports of the three-way connecting flange pipe (15) are connected with an oil phase pipeline and a water phase pipeline through pipelines.

7. The shear head of claim 1, wherein: The surface of the fixed sleeve (2) is fixedly provided with a hinged seat (16), the hinged seat (16) is rotationally connected with a sleeve pipe (17), the surface of the sleeve pipe (17) is slidingly connected with an L-shaped fastener (18), a locking bolt (19) is slidingly arranged in the through hole formed in the surface of the L-shaped fastener (18), one end of the locking bolt (19) is threadedly connected in the sleeve pipe (17), and the surface of the upper bushing (7) is provided with a clamping groove (20) matched with the L-shaped clamping part of the L-shaped fastener (18).

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