A blender and a blending method thereof

Abstract

The application discloses a mixer and a stirring method thereof, and relates to the technical field of stirring equipment.The mixer comprises a rack, a driving assembly, a limiting assembly, a material bucket, a stirring assembly, a magnetic heating coil, a heat preservation sleeve and an end cover.The driving assembly is installed on the top of the rack, and the movable end of the driving assembly is used for driving the limiting assembly to slide up and down.The material bucket is clamped on the top of the limiting assembly and can move up and down with the limiting assembly.The stirring assembly is arranged on the top of the rack and is used for stirring the material in the material bucket.The end cover is fixedly connected to the top of the rack and is sleeved on the stirring assembly to seal the top opening of the material bucket.The magnetic heating coil is coaxially and sleevedly connected to the top of the stirring assembly.The heat preservation sleeve is used for sleeving the outside of the material bucket to heat and measure the temperature of the material bucket.The application can realize efficient and uniform heating during the stirring process, and has good axial circulating mixing capacity and online defoaming function.

Description

Technical Field

[0001] This invention relates to the field of mixing equipment technology, and in particular to a mixer and its mixing method. Background Technology

[0002] In the production of fine chemical products such as adhesives and slurries, mixing equipment is crucial for achieving uniform material mixing. Traditional mixers typically employ a jacketed or barrel-wall-embedded heating element structure, coupled with single-stage impellers, capable of meeting the mixing requirements of materials with general viscosities. Due to their simple structure and relatively convenient operation, they are widely used in small- to medium-batch production. However, with the increasingly stringent processing requirements for high-viscosity and temperature-sensitive adhesives, the limitations of traditional mixing equipment in terms of heating efficiency, temperature uniformity, and mixing effect are gradually becoming apparent.

[0003] Existing mixers suffer from several shortcomings: First, the heating device is fixed to the barrel wall, requiring heat to pass through the wall before being conducted to the material. This results in high thermal resistance, slow response, and a significant temperature gradient within the barrel, affecting the consistency of the adhesive reaction and its final performance. Second, traditional single-stage mixing paddles primarily use radial flow with weak axial circulation. High-viscosity materials are prone to stratification and mixing dead zones, and air bubbles trapped during mixing are difficult to escape naturally, typically requiring transfer to dedicated degassing equipment, leading to cumbersome processes and reduced efficiency. Furthermore, the barrel wall heating method makes each mixing barrel an independent heating unit, necessitating repeated preheating when switching material batches, resulting in energy waste and equipment redundancy. These problems severely restrict the continuous and automated production level of adhesive mixing.

[0004] Therefore, how to develop a mixer that can achieve efficient and uniform heating during the mixing process, while also having good axial circulation mixing capability and online degassing function, in order to solve the problems of low thermal efficiency, uneven temperature, many mixing dead zones and difficulty in removing bubbles in existing equipment, has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a mixer and its mixing method that can achieve efficient and uniform heating during the mixing process, while also having good axial circulation mixing capability and online degassing function, so as to solve the problems of low thermal efficiency, uneven temperature, many mixing dead zones and difficulty in removing bubbles in existing equipment.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention discloses a mixer, comprising a frame, a drive assembly, a limiting assembly, a material container, a stirring assembly, a magnetic heating coil, an insulation sleeve, and an end cap. The fixed end of the drive assembly is mounted on the top of the frame, and the movable end of the drive assembly is used to drive the limiting assembly to move up and down. The material container is engaged with the top of the limiting assembly and can move up and down with the limiting assembly. The stirring assembly is disposed on the top of the frame and is used to stir the material contained in the material container. The end cap is fixedly connected to the top of the frame and is fitted onto the stirring assembly. The end cap has a clearance hole for the stirring assembly to pass through and is used to seal the top opening of the material container. The magnetic heating coil is coaxially fitted onto the top of the stirring assembly and is located above the end cap. The insulation sleeve is fixedly connected to the top of the frame and is fitted onto the outside of the material container to insulate and measure the temperature of the material container.

[0007] Preferably, the frame includes a base, columns, and a top plate. The base is configured in an H-shape. Two columns are symmetrically arranged on the top of the base and are located at both ends of the crossbar of the base. The top plate is fixedly connected to the top of the columns, and multiple first reinforcing ribs are provided at the connection position between the columns and the top plate. The columns divide the space above the top plate into two areas: a working area and an installation area.

[0008] Preferably, the drive assembly includes a multi-stage hydraulic cylinder, a first guide rod, and a lifting platform. Two multi-stage hydraulic cylinders are symmetrically fixedly connected to the bottom of the mounting area of ​​the top plate, and the fixed end of the multi-stage hydraulic cylinder is hinged to the bottom of the top plate. The telescopic end of the multi-stage hydraulic cylinder is hinged to the lifting platform. The lifting platform is provided with a second guide hole, and the lifting platform is slidably connected to the column through the second guide hole. At least two first guide rods are spaced apart between the two columns, and one end of the first guide rod is fixedly connected to the bottom of the top plate, and the other end of the first guide rod is fixedly connected to the crossbar in the middle of the base. The lifting platform is slidably connected to the first guide rod through the first guide hole. A first sliding groove is provided on one side of the column, and a first slider that matches the first sliding groove is provided in the second guide hole.

[0009] Preferably, the limiting component includes a first support plate, a second support plate, a first locking block, a second guide rod, a limiting baffle, a second slider, and a stop block. The first support plate is fixedly connected to the working end of the lifting platform and is integrally formed with the lifting platform. Multiple second reinforcing ribs are provided between the first support plate and the lifting platform. Two first locking blocks are symmetrically arranged at the end of the first support plate away from the lifting platform for locking and supporting the material bucket. The end of the first support plate away from the lifting platform has an opening for the material bucket to enter. The second support plate has a U-shaped structure, and the second… Two second guide rods are vertically arranged at the top of the closed end of the support plate. A third guide hole is opened in the middle of the first support plate to slide with the second guide rods. The top of the second guide rod passes through the third guide hole and is fastened to the limiting baffle bolt. Two second sliders are symmetrically arranged at the top of the open end of the second support plate. The second sliders are used to slide with the bottom of the material bucket. A stop is provided on the side of the second slider near the closed end of the second support plate. The stop is used to limit the sliding stroke of the material bucket along the second slider. A first limiting hole is opened at the top of the other end of the second slider.

[0010] Preferably, the material bucket includes casters, a second locking block, a mounting plate, a rotating plunger, a guide sleeve, and a sealing protrusion. Four casters are disposed at the bottom of the material bucket, and two guide sleeves are disposed at the bottom of the material bucket, with the guide sleeves slidingly engaging with the second slider. Two mounting plates are symmetrically disposed at the rear end of the material bucket, and the mounting positions of the mounting plates correspond to the mounting positions of the guide sleeves. The rotating plunger is mounted on the mounting plate, and the telescopic end of the rotating plunger is used for insertion engagement with the first limiting hole.

[0011] Preferably, the stirring assembly includes a drive motor, a stirring rod assembly, an inner spiral stirring paddle, an isolating flow direction cylinder, an outer spiral stirring paddle, and a scraper. The drive motor is installed at the top of the working area of ​​the top plate. One end of the stirring rod assembly passes through the top plate and is fixedly connected to the rotating end of the drive motor. The other end of the stirring rod assembly passes through the clearance hole on the end cover and extends downward. The inner spiral stirring paddle, the isolating flow direction cylinder, the outer spiral stirring paddle, and the scraper are coaxially sleeved on the outside of the stirring rod assembly from the inside to the outside, and the inner spiral stirring paddle, the isolating flow direction cylinder, the outer spiral stirring paddle, and the scraper are all located below the end cover.

[0012] Preferably, the stirring rod assembly includes a first central shaft, a heat-insulating shaft section, and a second central shaft connected end to end in sequence. One end of the first central shaft passes through the top plate and is fixedly connected to the rotating end of the drive motor. The other end of the first central shaft is fastened to the heat-insulating shaft section via a flange. One end of the second central shaft is fastened to the other end of the heat-insulating shaft section via a flange. The other end of the second central shaft passes through the clearance hole and extends downward. The magnetic heating coil is sleeved on the second central shaft and located above the end cap. The inner spiral stirring paddle is fixedly connected to the second central shaft. The isolation flow direction cylinder is fixedly connected to the second central shaft via a first connecting rod. The outer spiral stirring paddle is fixedly connected to the outer periphery of the isolation flow direction cylinder. The scraper is fixedly connected to the outer edge of the outer spiral stirring paddle, and the top of the scraper is fixedly connected to the second central shaft via a second connecting rod.

[0013] Preferably, the end cap further includes an observation window, a vacuum hole, a material inlet hole, a fourth connecting rod, and a sealing groove. The end cap is fixedly connected to the top plate via the fourth connecting rod. The observation window, vacuum hole, and material inlet hole are all located on the end cap, and the vacuum hole and material inlet hole are each equipped with an independent valve for independently controlling the opening and closing of their respective channels. The sealing groove is located at the bottom of the end cap and is used to match and seal with the sealing protrusion on the top of the material container. A sealing strip is installed in the sealing groove.

[0014] Preferably, the insulation sleeve is fixedly connected to the bottom of the top plate by a third connecting rod, and the insulation sleeve is located below the end cap. A temperature measuring component is installed on the insulation sleeve for measuring the outer wall temperature of the material barrel.

[0015] A mixing method using a mixer includes the following steps: S1. Push the material bucket containing the material to be stirred into the predetermined position of the limiting component through the universal wheels at its bottom, so that the two guide sleeves at the bottom of the material bucket slide and engage with the corresponding second sliders respectively, until the rear end of the material bucket abuts against the stop block; then operate the rotating plunger so that its telescopic end extends out and inserts into the first limiting hole at the top of the second slider to complete the locking of the material bucket. S2. Activate the multi-stage hydraulic cylinder of the drive assembly to drive the lifting platform to slide upward along the first guide rod and column, thereby moving the first support plate upward. Subsequently, the first locking block on the first support plate engages with the second locking block on the side wall of the material bucket. At the same time, the top of the first support plate abuts against the bottom of the limiting baffle. At this time, the lifting force of the first support plate is transmitted to the second support plate through the limiting baffle. That is, the first locking block and the second slider lift the material bucket together until the sealing protrusion at the top of the material bucket is tightly pressed against the sealing strip in the sealing groove at the bottom of the end cap, thereby sealing the internal cavity of the material bucket. S3. Activate the magnetic heating coil to electromagnetically induction heat the second central shaft of the stirring assembly, causing eddy current heating in the second central shaft; the heat is directly transferred to the inner spiral stirring paddle fixed thereon via the second central shaft, and also transferred to the isolation flow cylinder, outer spiral stirring paddle, and scraper via the first and second connecting rods; simultaneously, activate the drive motor to drive the stirring rod assembly to rotate, causing the inner spiral stirring paddle, outer spiral stirring paddle, and scraper to rotate synchronously, stirring the material in the material tank, so that the heated stirring assembly directly heats the material and achieves temperature uniformity; S4. During the stirring and heating process, the temperature of the outer wall of the material barrel is monitored in real time by the temperature measuring component installed on the insulation sleeve to indirectly obtain the temperature information of the internal material; at the same time, according to the process requirements, the valve on the vacuum hole can be opened or closed independently to perform vacuuming and degassing operation inside the material barrel, or the valve on the material inlet hole can be opened or closed independently to replenish the material barrel; and a camera can be installed to observe the stirring status inside the barrel in real time through the observation window; S5. After the stirring and heating reach the predetermined requirements, the magnetic heating coil and the drive motor are turned off in sequence; then the multi-stage hydraulic cylinder of the drive assembly is activated to reverse the action, driving the lifting platform to descend, and causing the limiting assembly and the material bucket to descend synchronously, so that the sealing protrusion on the top of the material bucket disengages from the sealing groove at the bottom of the end cover; after the material bucket has completely descended to the initial position, the rotating plunger is operated to make its telescopic end exit the first limiting hole, releasing the locking of the material bucket, and removing the material bucket from the limiting assembly, thus completing the entire stirring operation process.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are as follows: 1) The heating method of this invention achieves a transformation from "barrel wall heating" to "self-heating of the stirring component". By placing a magnetic heating coil on the second central shaft of the stirring rod assembly, the second central shaft itself generates eddy current heating, and the heat is then directly transferred to the material through the inner spiral stirring paddle, the isolation flow cylinder, the outer spiral stirring paddle, and the scraper. This design eliminates the step of heat penetrating the barrel wall, resulting in a fast thermal response. Furthermore, the rotating stirring component itself acts as a heating element, directly contacting the material. Combined with the stirring action, this allows the temperature inside the barrel to quickly become uniform, avoiding localized overheating or overcooling. This is particularly suitable for processing temperature-sensitive adhesive materials. 2) The stirring assembly of this invention employs a composite structure of inner and outer propellers and scrapers, forming a highly efficient three-dimensional circulating flow field. The inner spiral stirring propeller generates a downward axial thrust, while the outer spiral stirring propeller generates an upward axial thrust. The combination of these two forces creates a large circulation of material within the container, flowing downwards from the center and upwards along the container wall, effectively eliminating the layering and dead zones present in traditional stirring. Simultaneously, the scraper rotates close to the container wall, promptly scraping off material adhering to the wall and reducing residue. Under vacuum conditions, this axial circulation continuously brings material from the bottom to the surface, allowing deeper air bubbles to escape more easily, significantly improving degassing efficiency and uniformity. 3) This invention enables rapid loading and unloading, sealing, online vacuuming, and material replenishment of the material container, improving production continuity and automation. The first and second support plates in the limiting assembly slide together via a second guide rod, ensuring that the material container engages and is lifted during ascent, and disengages and resets during descent. The entire sequence of actions is reliable and interference-free. The end cap is independently equipped with a vacuuming hole and a material inlet hole, each with a valve. This allows for independent vacuuming and degassing or additive replenishment without interrupting stirring, eliminating the need to transfer materials or open the end cap. This simplifies the process, reduces energy consumption and labor costs, and facilitates continuous mass production. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of a mixer according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a mixer according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the frame structure in this invention; Figure 4 This is a schematic diagram of the driving component in this invention; Figure 5 This is a schematic diagram of the connection structure between the limiting component and the lifting platform in this invention; Figure 6 This is a schematic diagram of the structure of the second support plate in this invention; Figure 7 This is a schematic diagram of the structure of the first support plate in this invention; Figure 8 This is a schematic diagram of the material bucket structure in this invention. Figure 1 ; Figure 9 This is a schematic diagram of the material bucket structure in this invention. Figure 2 ; Figure 10 This is a schematic diagram of the connection structure of the stirring assembly, magnetic heating coil, and end cap in this invention. Figure 1 ; Figure 11 This is a schematic diagram of the connection structure of the stirring assembly, magnetic heating coil, and end cap in this invention. Figure 2 ; Figure 12 This is a schematic diagram of the end cap structure in this invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Base; 12. Column; 121. First slide groove; 13. Top plate; 14. First reinforcing rib; 2. Drive assembly; 21. Multi-stage hydraulic cylinder; 22. First guide rod; 23. Lifting platform; 231. First guide hole; 232. Second guide hole; 24. First slider; 3. Limiting assembly; 31. First support plate; 311. Third guide hole; 32. Second support plate; 33. First locking block; 34. Second guide rod; 35. Limiting baffle; 36. Second slider; 361. First limiting hole; 37. Second reinforcing rib; 38. Stop block; 4. Material bucket; 41. Caster wheel; 42. 43. Second snap-fit ​​block; 44. Mounting plate; 45. Rotary plunger; 46. Guide sleeve; 57. Sealing protrusion; 58. Stirring assembly; 59. Drive motor; 50. Stirring rod assembly; 51. First central shaft; 52. Insulated shaft section; 52. Second central shaft; 53. Inner spiral stirring paddle; 54. Isolation flow cylinder; 55. Outer spiral stirring paddle; 56. Scraper; 57. First connecting rod; 58. Second connecting rod; 6. Magnetic heating coil; 7. Insulation sleeve; 71. Third connecting rod; 82. End cap; 83. Clearance hole; 84. Observation window; 85. Vacuum hole; 86. Material inlet hole; 87. Fourth connecting rod; 88. Sealing groove. Detailed Implementation

[0020] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] like Figure 1-12As shown, a mixer includes a frame 1, a drive assembly 2, a limiting assembly 3, a material container 4, a stirring assembly 5, a magnetic heating coil 6, an insulation sleeve 7, and an end cap 8. The fixed end of the drive assembly 2 is mounted on the top of the frame 1, and the movable end of the drive assembly 2 is used to drive the limiting assembly 3 to move up and down. The material container 4 is engaged with the top of the limiting assembly 3 and can move up and down with the limiting assembly 3. The stirring assembly 5 is disposed on the top of the frame 1 and is used to stir the material contained in the material container 4. The end cap 8 is fixedly connected to the top of the frame 1 and is sleeved on the stirring assembly 5. The end cap 8 has a clearance hole 81 for the stirring assembly 5 to pass through. The end cap 8 is used to seal the top opening of the material tank 4. The magnetic heating coil 6 is coaxially sleeved and connected to the top of the stirring assembly 5 and is located above the end cap 8. The heat insulation sleeve 7 is fixedly connected to the top of the frame 1 and is used to sleeve the outside of the material tank 4 to insulate and measure the temperature of the material tank 4.

[0022] Specifically, by placing the magnetic heating coil 6 on top of the stirring assembly 5 and above the end cap 8, induction heating of the stirring assembly 5 itself is achieved. The heat is directly transferred from the stirring assembly 5 to the glue inside the material bucket 4, avoiding the heat loss and uneven temperature problems of traditional bucket wall heating methods. Simultaneously, the insulation sleeve 7 is fitted over the outside of the material bucket 4, reducing heat loss and allowing the temperature sensing components on it to monitor the bucket wall temperature in real time, indirectly reflecting the material temperature, which is beneficial for process control. The frame 1 serves as the supporting foundation for the entire equipment, and the drive assembly 2 drives the limiting assembly 3 to rise and fall, enabling the material bucket 4 to move easily up and down, achieving rapid loading, unloading, and sealing.

[0023] Specifically, the frame 1 includes a base 11, columns 12, and a top plate 13. The base 11 is configured in an H-shape. Two columns 12 are symmetrically arranged on the top of the base 11 and are located at both ends of the crossbar of the base 11. The top plate 13 is fixedly connected to the top of the columns 12, and multiple first reinforcing ribs 14 are provided at the connection position between the columns 12 and the top plate 13. The columns 12 divide the space above the top plate 13 into two areas: a working area and an installation area.

[0024] Specifically, the base 11 adopts an H-shaped structure, which provides stable support and prevents the equipment from shaking during the mixing process. Two uprights 12 are symmetrically arranged, and together with the first reinforcing rib 14, enhance the strength of the connection between the top plate 13 and the uprights 12, ensuring long-term reliability. The top plate 13 is divided into a working area and an installation area by the uprights 12. The working area is used to install the mixing assembly 5, and the installation area is used to install the drive assembly 2. This partitioned arrangement ensures that the various functional modules do not interfere with each other, facilitating maintenance and repair.

[0025] Specifically, the drive assembly 2 includes a multi-stage hydraulic cylinder 21, a first guide rod 22, and a lifting platform 23. Two multi-stage hydraulic cylinders 21 are symmetrically fixedly connected to the bottom of the mounting area of ​​the top plate 13, and the fixed end of the multi-stage hydraulic cylinder 21 is hinged to the bottom of the top plate 13. The telescopic end of the multi-stage hydraulic cylinder 21 is hinged to the lifting platform 23. The lifting platform 23 is provided with a second guide hole 232. The lifting platform 23 is slidably sleeved to the column 12 through the second guide hole 232. At least two first guide rods 22 are spaced apart between the two columns 12. One end of the first guide rod 22 is fixedly connected to the bottom of the top plate 13, and the other end of the first guide rod 22 is fixedly connected to the crossbar in the middle of the base 11. The lifting platform 23 is slidably connected to the first guide rod 22 through the first guide hole 231. A first groove 121 is provided on one side of the column 12, and a first slider 24 matching the first groove 121 is provided in the second guide hole 232.

[0026] Specifically, the two multi-stage hydraulic cylinders 21 are symmetrically arranged to provide uniform lifting force and prevent the lifting platform 23 from tilting. The lifting platform 23 is simultaneously slidably fitted with the column 12 through the second guide hole 232 and slidably connected to the first guide rod 22 through the first guide hole 231, forming a double guide to ensure the stability of the lifting process. The cooperation between the first slider 24 and the first slide groove 121 further restricts the circumferential rotation of the lifting platform 23, ensuring that the lifting platform 23 can only move in the vertical direction, thereby ensuring that the material bucket 4 can be accurately aligned with the end cover 8 when it rises.

[0027] Specifically, the limiting component 3 includes a first support plate 31, a second support plate 32, a first locking block 33, a second guide rod 34, a limiting baffle 35, a second slider 36, and a stop block 38. The first support plate 31 is fixedly connected to the working end of the lifting platform 23, and the first support plate 31 and the lifting platform 23 are integrally formed. A plurality of second reinforcing ribs 37 are provided between the first support plate 31 and the lifting platform 23. Two first locking blocks 33 are symmetrically arranged at the end of the first support plate 31 away from the lifting platform 23 for locking and supporting the material bucket 4. The end of the first support plate 31 away from the lifting platform 23 is provided with an opening for the material bucket 4 to enter. The second support plate 32 has a U-shaped structure, and the first... Two second guide rods 34 are vertically arranged at the top of the closed end of the second support plate 32. A third guide hole 311 is opened in the middle of the first support plate 31 to slide with the second guide rods 34. The top of the second guide rods 34 passes through the third guide hole 311 and is bolted to the limiting baffle 35. Two second sliders 36 are symmetrically arranged at the top of the open end of the second support plate 32. The second sliders 36 are used to slide with the bottom of the material bucket 4. A stop block 38 is provided on the side of the second slider 36 near the closed end of the second support plate 32. The stop block 38 is used to limit the sliding stroke of the material bucket 4 along the second slider 36. A first limiting hole 361 is opened at the top of the other end of the second slider 36.

[0028] Specifically, the first support plate 31 is integrally formed with the lifting platform 23 and is reinforced with a second reinforcing rib 37, enabling it to withstand the weight of the material bucket 4 when fully loaded without deformation. In the initial state, the first support plate 31 naturally adheres to the top of the second support plate 32 under the action of gravity. At this time, the first locking block 33 is in a low position and will not interfere with the movement of the material bucket 4 when it is pushed in from the opening. When the material bucket 4 slides into place with the second slider 36 through the bottom guide sleeve 45 and is locked by operating the rotating plunger 44, the lifting platform 23 begins to drive the first support plate 31 to move upward. Since the second support plate 32 is only slidably connected to the first support plate 31 through the second guide rod 34 at this time, it remains in its original position under the action of gravity. Therefore, the first support plate 31 will slide upward relative to the second support plate 32 for a certain distance until the first locking block 33 rises to the position where it engages with the second locking block 42 on the side wall of the material bucket 4. Subsequently, the first support plate 31 continues to rise, and the bottom of the limiting baffle 35 abuts against the top of the first support plate 31. This transmits the upward force to the second guide rod 34 via the limiting baffle 35, causing the second support plate 32 to slide upwards together. At this time, the first locking block 33 and the second slider 36 together lift the material bucket 4 upwards. During descent, when the material bucket 4 descends to near the bottom, the second support plate 32 first touches the lower limiting structure and stops descending, while the first support plate 31 continues to move downwards a short distance, causing the first locking block 33 to disengage from the second locking block 42. Only then does the lifting platform 23 come to a complete stop. This design ensures that the material bucket 4 can be locked before being lifted during ascent and can be released before resetting during descent. The entire sequence of actions is reliable and does not cause interference.

[0029] Specifically, the material bin 4 includes casters 41, a second locking block 42, a mounting plate 43, a rotating plunger 44, a guide sleeve 45, and a sealing protrusion 46. The four casters 41 are located at the bottom of the material bin 4, and the two guide sleeves 45 are located at the bottom of the material bin 4. The guide sleeves 45 slide in cooperation with the second slider 36. The rear end of the material bin 4 is symmetrically provided with two mounting plates 43, and the installation positions of the mounting plates 43 correspond to the installation positions of the guide sleeves 45. The rotating plunger 44 is mounted on the mounting plate 43, and the telescopic end of the rotating plunger 44 is used to insert and cooperate with the first limiting hole 361.

[0030] Specifically, the casters 41 allow the material container 4 to move easily, facilitating transfer between different processes. The sliding engagement between the guide sleeve 45 and the second slider 36 ensures the directional accuracy of the material container 4 when pushed into the limiting assembly 3. Once the material container 4 is in place, the telescopic end of the rotating plunger 44 inserts into the first limiting hole 361, locking the material container 4 and the second slider 36 together to prevent displacement of the material container 4 during lifting and stirring. The sealing protrusion 46 engages with the sealing groove 86 of the end cap 8 to form a reliable sealing structure.

[0031] Specifically, the stirring assembly 5 includes a drive motor 51, a stirring rod assembly 52, an inner spiral stirring paddle 53, an isolation flow direction cylinder 54, an outer spiral stirring paddle 55, and a scraper 56. The drive motor 51 is installed at the top of the working area of ​​the top plate 13. One end of the stirring rod assembly 52 passes through the top plate 13 and is fixedly connected to the rotating end of the drive motor 51. The other end of the stirring rod assembly 52 passes through the clearance hole 81 on the end cover 8 and extends downward. The inner spiral stirring paddle 53, the isolation flow direction cylinder 54, the outer spiral stirring paddle 55, and the scraper 56 are coaxially sleeved on the outside of the stirring rod assembly 52 from the inside to the outside, and the inner spiral stirring paddle 53, the isolation flow direction cylinder 54, the outer spiral stirring paddle 55, and the scraper 56 are all located below the end cover 8.

[0032] Specifically, the drive motor 51 is mounted on top of the working area of ​​the top plate 13 for easy heat dissipation and maintenance. The inner spiral agitator 53 generates a downward axial thrust when rotating, pushing the material downwards from the center; the outer spiral agitator 55 generates an upward axial thrust, causing the material to form a three-dimensional circulation within the container, preventing stratification. The flow isolation cylinder 54 separates the inner spiral agitator 53 and the outer spiral agitator 55, preventing interference between the two flow directions. The scraper 56 rotates close to the inner wall of the material container 4, scraping off material adhering to the container wall and mixing it, reducing residue and dead zones.

[0033] Specifically, the stirring rod assembly 52 includes a first central shaft 521, a heat-insulating shaft section 522, and a second central shaft 523 connected end to end in sequence. One end of the first central shaft 521 passes through the top plate 13 and is fixedly connected to the rotating end of the drive motor 51. The other end of the first central shaft 521 is fastened to the heat-insulating shaft section 522 via a flange. One end of the second central shaft 523 is fastened to the other end of the heat-insulating shaft section 522 via a flange. The other end of the second central shaft 523 passes through the clearance hole 81 and extends downwards. The magnetic heating coil 6 is sleeved on the second central shaft 523 and located above the end cap 8. The inner spiral stirring paddle 53 is fixedly connected to the second central shaft 523. The isolation flow direction cylinder 54 is fixedly connected to the second central shaft 523 through the first connecting rod 57. The outer spiral stirring paddle 55 is fixedly connected to the outer periphery of the isolation flow direction cylinder 54. The scraper 56 is fixedly connected to the outer edge of the outer spiral stirring paddle 55, and the top of the scraper 56 is fixedly connected to the second central shaft 523 through the second connecting rod 58.

[0034] Specifically, the magnetic heating coil 6 is mounted on the second central shaft 523. When energized, it generates an alternating magnetic field, causing the second central shaft 523 to heat up. The heat-insulating shaft section 522 is made of a low thermal conductivity material, which effectively prevents the heat on the second central shaft 523 from being transferred upwards to the first central shaft 521 and the drive motor 51, protecting the motor from high temperatures. The second central shaft 523 directly conducts heat to the inner spiral stirring paddle 53, and then through the first connecting rod 57 and the second connecting rod 58, it is transferred to the isolation flow cylinder 54, the outer spiral stirring paddle 55, and the scraper 56, making the lower half of the entire stirring assembly 5 a heating element, directly contacting the material for heating, resulting in high thermal efficiency and uniform temperature.

[0035] Specifically, the end cap 8 also includes an observation window 82, a vacuum hole 83, a material inlet hole 84, a fourth connecting rod 85, and a sealing groove 86. The end cap 8 is fixedly connected to the top plate 13 via the fourth connecting rod 85. The observation window 82, the vacuum hole 83, and the material inlet hole 84 are all opened on the end cap 8, and the vacuum hole 83 and the material inlet hole 84 are each equipped with an independent valve for independently controlling the opening and closing of their respective channels. The bottom of the end cap 8 is provided with the sealing groove 86, which is used to match and seal with the sealing protrusion 46 on the top of the material barrel 4, and a sealing strip is installed in the sealing groove 86.

[0036] Specifically, the observation window 82 is made of transparent, pressure-resistant glass, allowing operators to monitor the mixing status of the materials inside the container at any time. The vacuum port 83 is connected to an external vacuum pump, which can evacuate the inside of the material container 4 during mixing, effectively removing air bubbles from the adhesive. The material inlet port 84 is used to add additives or auxiliaries during mixing without opening the end cap 8, preventing material exposure and heat loss. Two independent valves control the vacuum and material inlet channels respectively, preventing mutual interference during operation. The sealing strip in the sealing groove 86 cooperates with the sealing protrusion 46 to form an airtight seal after the material container 4 rises and is compressed, meeting the requirements for vacuum operation.

[0037] Specifically, the insulation sleeve 7 is fixedly connected to the bottom of the top plate 13 via the third connecting rod 71, and the insulation sleeve 7 is located below the end cover 8. A temperature measuring component is installed on the insulation sleeve 7 to measure the outer wall temperature of the material barrel 4.

[0038] Specifically, the insulation jacket 7 is fitted over the outside of the material container 4, with its inner layer being insulation material, which reduces heat loss to the environment and saves energy. The temperature sensing component can be multiple patch-type temperature sensors distributed at different heights inside the insulation jacket 7, capable of measuring the temperature of different areas on the outer wall of the material container 4 in real time. Because the material container 4 has a thin wall and good thermal conductivity, the outer wall temperature can approximately reflect the temperature of the material inside the container. Based on this temperature data, the operator can adjust the power of the magnetic heating coil 6 to achieve precise control of the heating process.

[0039] Specifically, the material container 4 is made of a metal material with good thermal conductivity, such as stainless steel or aluminum alloy. This material does not need to be magnetic, because the heating method of this invention involves heating the stirring assembly 5 via a magnetic heating coil 6, and then the stirring assembly 5 directly transfers the heat to the material; the material container 4 itself does not participate in the heating process. The purpose of selecting a high thermal conductivity material is to ensure that when the material is heated, the heat can be quickly transferred through the material to the inner wall of the material container 4, and then conducted to the outer wall, so that it can be accurately sensed by the temperature measuring component on the insulation jacket 7, ensuring timely and accurate temperature feedback. At the same time, the material should have good corrosion resistance to withstand long-term contact with chemical materials such as adhesives.

[0040] A mixing method using a mixer includes the following steps: S1. The material bucket 4 containing the material to be stirred is pushed into the predetermined position of the limiting component 3 by the universal wheels 41 at its bottom, so that the two guide sleeves 45 at the bottom of the material bucket 4 slide and engage with the corresponding second slider 36 until the rear end of the material bucket 4 abuts against the stop block 38; then the rotating plunger 44 is operated so that its telescopic end extends out and inserts into the first limiting hole 361 at the top of the second slider 36 to complete the locking of the material bucket 4; S2. Activate the multi-stage hydraulic cylinder 21 of the drive assembly 2 to drive the lifting platform 23 to slide upward along the first guide rod 22 and the column 12, thereby moving the first support plate 31 upward. Subsequently, the first locking block 33 on the first support plate 31 engages with the second locking block 42 on the side wall of the material barrel 4. At the same time, the top of the first support plate 31 abuts against the bottom of the limiting baffle 35. At this time, the lifting force of the first support plate 31 is transmitted to the second support plate 32 through the limiting baffle 35. That is, the first locking block 33 and the second slider 36 lift the material barrel 4 together until the sealing protrusion 46 at the top of the material barrel 4 is tightly pressed against the sealing strip in the sealing groove 86 at the bottom of the end cover 8, thereby sealing the internal cavity of the material barrel 4. S3. Activate the magnetic heating coil 6 to electromagnetically induction heat the second central shaft 523 of the stirring assembly 5, causing the second central shaft 523 to generate eddy current heating. The heat is directly transferred to the inner spiral stirring paddle 53 fixed thereon via the second central shaft 523, and to the isolation flow cylinder 54, the outer spiral stirring paddle 55, and the scraper 56 via the first connecting rod 57 and the second connecting rod 58. Simultaneously, activate the drive motor 51 to drive the stirring rod assembly 52 to rotate, causing the inner spiral stirring paddle 53, the outer spiral stirring paddle 55, and the scraper 56 to rotate synchronously, stirring the material in the material tank 4, so that the heated stirring assembly directly heats the material and achieves temperature uniformity. S4. During the stirring and heating process, the temperature of the outer wall of the material tank 4 is monitored in real time by the temperature measuring component installed on the insulation sleeve 7 to indirectly obtain the temperature information of the internal material; at the same time, according to the process requirements, the valve on the vacuum hole 83 can be opened or closed independently to perform vacuum degassing operation inside the material tank 4, or the valve on the material inlet hole 84 can be opened or closed independently to replenish the material tank 4; and a camera can be installed to observe the stirring status inside the tank in real time through the observation window 82. S5. After the stirring and heating reach the predetermined requirements, the magnetic heating coil 6 and the drive motor 51 are turned off in sequence; then the multi-stage hydraulic cylinder 21 of the drive assembly 2 is activated to reverse the action, driving the lifting platform 23 to descend, which in turn drives the limiting assembly 3 and the material bucket 4 to descend synchronously, so that the sealing protrusion 46 on the top of the material bucket 4 is disengaged from the sealing groove 86 at the bottom of the end cover 8; after the material bucket 4 has completely descended to the initial position, the rotating plunger 44 is operated to make its telescopic end exit the first limiting hole 361, thereby releasing the locking of the material bucket 4 and removing the material bucket 4 from the limiting assembly 3, thus completing the entire stirring operation process.

[0041] Specifically, this mixing method achieves fully automated operation from loading, sealing, heating and mixing to unloading of the material bucket. In step S1, the design of the universal wheel 41 and the guide sleeve 45 allows the material bucket 4 to be easily pushed in and accurately positioned, and the locking of the rotating plunger 44 ensures that the bucket will not slide during the lifting process. In step S2, the multi-stage hydraulic cylinder 21 provides stable lifting power. The engagement of the first locking block 33 and the second locking block 42, as well as the abutment of the first support plate 31 and the limiting baffle 35, ensure that the lifting force can be evenly transmitted, so that the sealing protrusion 46 and the sealing strip in the sealing groove 86 are tightly pressed together to form a reliable sealing cavity. Step S3 is the core of this method. The magnetic heating coil 6 directly heats the mixing component 5 itself. The mixing component 5 directly transfers heat to the material while mixing it, resulting in high thermal efficiency and uniform temperature, avoiding the thermal lag and local overheating problems of traditional heating methods. In step S4, the temperature measuring component on the insulation jacket 7 provides real-time temperature feedback, and the vacuuming and feeding operations can be performed without interrupting the stirring, significantly improving production efficiency. The lowering and unlocking operations in step S5 are simple and quick, facilitating the replacement of the material container 4 for continuous production.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A mixer, characterized in that: The machine includes a frame (1), a drive assembly (2), a limiting assembly (3), a material bucket (4), a stirring assembly (5), a magnetic heating coil (6), an insulation sleeve (7), and an end cap (8). The fixed end of the drive assembly (2) is installed on the top of the frame (1), and the movable end of the drive assembly (2) is used to drive the limiting assembly (3) to slide up and down. The material bucket (4) is engaged with the top of the limiting assembly (3) and can move up and down with the limiting assembly (3). The stirring assembly (5) is located on the top of the frame (1) and is used to stir the material in the material bucket (4). The end cap (8) 8) The end cap (8) is fixedly connected to the top of the frame (1) and sleeved on the stirring assembly (5). The end cap (8) has a clearance hole (81) for the stirring assembly (5) to pass through. The end cap (8) is used to seal the top opening of the material bucket (4). The magnetic heating coil (6) is coaxially sleeved and connected to the top of the stirring assembly (5). The magnetic heating coil (6) is located above the end cap (8). The heat insulation sleeve (7) is fixedly connected to the top of the frame (1) and is used to sleeve the outside of the material bucket (4) to heat and measure the temperature of the material bucket (4).

2. The mixer according to claim 1, characterized in that: The frame (1) includes a base (11), columns (12) and a top plate (13). The base (11) is configured in an H-shape. Two columns (12) are symmetrically arranged on the top of the base (11) and are located at both ends of the crossbar of the base (11). The top plate (13) is fixedly connected to the top of the columns (12). Multiple first reinforcing ribs (14) are provided at the connection position between the columns (12) and the top plate (13). The columns (12) divide the space above the top plate (13) into two areas: a working area and an installation area.

3. A mixer according to claim 2, characterized in that: The drive assembly (2) includes a multi-stage hydraulic cylinder (21), a first guide rod (22), and a lifting platform (23). Two multi-stage hydraulic cylinders (21) are symmetrically fixedly connected to the bottom of the mounting area of ​​the top plate (13), and the fixed end of the multi-stage hydraulic cylinder (21) is hinged to the bottom of the top plate (13). The telescopic end of the multi-stage hydraulic cylinder (21) is hinged to the lifting platform (23). The lifting platform (23) is provided with a second guide hole (232). (23) The first guide rod (22) is slidably connected to the column (12) through the second guide hole (232), and at least two first guide rods (22) are spaced apart between the two columns (12). One end of the first guide rod (22) is fixedly connected to the bottom of the top plate (13), and the other end of the first guide rod (22) is fixedly connected to the crossbar in the middle of the base (11). The lifting platform (23) is slidably connected to the first guide rod (22) through the first guide hole (231). The column (12) has a first groove (121) on one side, and a first slider (24) matching the first groove (121) is provided in the second guide hole (232).

4. A mixer according to claim 3, characterized in that: The limiting component (3) includes a first support plate (31), a second support plate (32), a first locking block (33), a second guide rod (34), a limiting baffle (35), a second slider (36), and a stop block (38). The first support plate (31) is fixedly connected to the working end of the lifting platform (23), and the first support plate (31) and the lifting platform (23) are integrally formed. A plurality of second reinforcing ribs (37) are provided between the first support plate (31) and the lifting platform (23). Two first locking blocks (33) are symmetrically arranged at one end of the first support plate (31) away from the lifting platform (23) for locking and lifting the material bucket (4). An opening for the material bucket (4) to enter is provided at one end of the first support plate (31) away from the lifting platform (23). The second support plate (32) has a U-shaped structure, and the... Two second guide rods (34) are vertically arranged at the top of the closed end of the second support plate (32). A third guide hole (311) is opened in the middle of the first support plate (31) to slide with the second guide rod (34). The top of the second guide rod (34) passes through the third guide hole (311) and is bolted to the limiting baffle (35). Two second sliders (36) are symmetrically arranged at the top of the open end of the second support plate (32). The second sliders (36) are used to slide with the bottom of the material bucket (4). The second slider (36) is provided with a stop (38) on the side of the second slider (36) near the closed end of the second support plate (32). The stop (38) is used to limit the sliding stroke of the material bucket (4) along the second slider (36). A first limiting hole (361) is opened at the top of the other end of the second slider (36).

5. A mixer according to claim 4, characterized in that: The material bucket (4) includes casters (41), a second snap-fit ​​block (42), a mounting plate (43), a rotary plunger (44), a guide sleeve (45), and a sealing protrusion (46). Four casters (41) are located at the bottom of the material bucket (4), and two guide sleeves (45) are located at the bottom of the material bucket (4). The guide sleeves (45) slide in cooperation with the second slider (36). Two mounting plates (43) are symmetrically arranged at the rear end of the material bucket (4), and the mounting positions of the mounting plates (43) correspond to the mounting positions of the guide sleeves (45). The rotary plunger (44) is mounted on the mounting plate (43), and the telescopic end of the rotary plunger (44) is used to insert into the first limiting hole (361).

6. A mixer according to claim 2, characterized in that: The stirring assembly (5) includes a drive motor (51), a stirring rod assembly (52), an inner spiral stirring paddle (53), an isolation flow direction cylinder (54), an outer spiral stirring paddle (55), and a scraper (56). The drive motor (51) is installed at the top of the working area of ​​the top plate (13). One end of the stirring rod assembly (52) passes through the top plate (13) and is fixedly connected to the rotating end of the drive motor (51). The other end of the stirring rod assembly (52) passes through the clearance hole (81) on the end cover (8) and extends downward. The inner spiral stirring paddle (53), the isolation flow direction cylinder (54), the outer spiral stirring paddle (55), and the scraper (56) are coaxially sleeved on the outside of the stirring rod assembly (52) from the inside to the outside. The inner spiral stirring paddle (53), the isolation flow direction cylinder (54), the outer spiral stirring paddle (55), and the scraper (56) are all located below the end cover (8).

7. A mixer according to claim 6, characterized in that: The stirring rod assembly (52) includes a first central shaft (521), a heat-insulating shaft section (522), and a second central shaft (523) connected end to end in sequence. One end of the first central shaft (521) passes through the top plate (13) and is fixedly connected to the rotating end of the drive motor (51). The other end of the first central shaft (521) is fastened to the heat-insulating shaft section (522) through a flange. One end of the second central shaft (523) is fastened to the other end of the heat-insulating shaft section (522) through a flange. The other end of the second central shaft (523) passes through the clearance hole (81) and extends downward. The magnetic heating coil (6) is sleeved on the second central shaft (523) and located above the end cap (8). The inner spiral stirring paddle (53) is fixedly connected to the second central shaft (523). The isolation flow cylinder (54) is fixedly connected to the second central shaft (523) through the first connecting rod (57). The outer spiral stirring paddle (55) is fixedly connected to the outer periphery of the isolation flow cylinder (54). The scraper (56) is fixedly connected to the outer edge of the outer spiral stirring paddle (55), and the top of the scraper (56) is fixedly connected to the second central shaft (523) through the second connecting rod (58).

8. A mixer according to claim 5, characterized in that: The end cap (8) also includes an observation window (82), a vacuum hole (83), a material inlet hole (84), a fourth connecting rod (85), and a sealing groove (86). The end cap (8) is fixedly connected to the top plate (13) through the fourth connecting rod (85). The observation window (82), the vacuum hole (83), and the material inlet hole (84) are all opened on the end cap (8). The vacuum hole (83) and the material inlet hole (84) are each equipped with an independent valve for independently controlling the opening and closing of their respective channels. The bottom of the end cap (8) is provided with the sealing groove (86). The sealing groove (86) is used to match and seal with the sealing protrusion (46) on the top of the material bucket (4). A sealing strip is installed in the sealing groove (86).

9. A mixer according to claim 8, characterized in that: The insulation sleeve (7) is fixedly connected to the bottom of the top plate (13) by the third connecting rod (71), and the insulation sleeve (7) is located below the end cap (8). A temperature measuring component is installed on the insulation sleeve (7) to measure the outer wall temperature of the material barrel (4).

10. A mixing method using a mixer, characterized in that: A mixer according to any one of claims 1 to 9 includes the following steps: S1. Push the material bucket (4) containing the material to be stirred into the predetermined position of the limiting component (3) through the universal wheels (41) at its bottom, so that the two guide sleeves (45) at the bottom of the material bucket (4) slide and engage with the corresponding second slider (36) until the rear end of the material bucket (4) abuts against the stop block (38); then operate the rotating plunger (44) so ​​that its telescopic end extends out and inserts into the first limiting hole (361) at the top of the second slider (36) to complete the locking of the material bucket (4); S2. Start the multi-stage hydraulic cylinder (21) of the drive assembly (2) to drive the lifting platform (23) to slide upward along the first guide rod (22) and column (12), thereby moving the first support plate (31) upward. Subsequently, the first snap-fit ​​block (33) on the first support plate (31) snaps into the second snap-fit ​​block (42) on the side wall of the material barrel (4). At the same time, the top of the first support plate (31) abuts against the bottom of the limiting baffle (35). At this time, the lifting force of the first support plate (31) is transmitted to the second support plate (32) through the limiting baffle (35). That is, the first snap-fit ​​block (33) and the second slider (36) lift the material barrel (4) together until the sealing protrusion (46) on the top of the material barrel (4) is tightly pressed against the sealing strip in the sealing groove (86) at the bottom of the end cover (8), thereby sealing the internal cavity of the material barrel (4). S3. Start the magnetic heating coil (6) to electromagnetically induction heat the second central shaft (523) of the stirring assembly (5), causing the second central shaft (523) to generate eddy current heating; the heat is directly transferred to the inner spiral stirring paddle (53) fixed thereon via the second central shaft (523), and is also transferred to the isolation flow cylinder (54), the outer spiral stirring paddle (55) and the scraper (56) via the first connecting rod (57) and the second connecting rod (58); at the same time, start the drive motor (51) to drive the stirring rod assembly (52) to rotate, causing the inner spiral stirring paddle (53), the outer spiral stirring paddle (55) and the scraper (56) to rotate synchronously, stirring the material in the material bucket (4), so that the heated stirring assembly directly heats the material and achieves temperature uniformity; S4. During the stirring and heating process, the temperature of the outer wall of the material barrel (4) is monitored in real time by the temperature measuring component installed on the insulation sleeve (7) to indirectly obtain the temperature information of the internal material; at the same time, according to the process requirements, the valve on the vacuum hole (83) can be opened or closed independently to perform vacuum degassing operation inside the material barrel (4), or the valve on the material inlet hole (84) can be opened or closed independently to replenish the material barrel (4); and a camera can be installed to observe the stirring status inside the barrel in real time through the observation window (82); S5. When the stirring and heating reach the predetermined requirements, turn off the magnetic heating coil (6) and the drive motor (51) in sequence; then start the multi-stage hydraulic cylinder (21) of the drive assembly (2) to reverse the action, drive the lifting platform (23) to descend, and drive the limiting assembly (3) and the material bucket (4) to descend synchronously, so that the sealing protrusion (46) on the top of the material bucket (4) is separated from the sealing groove (86) at the bottom of the end cover (8); After the material bucket (4) has completely descended to the initial position, operate the rotating plunger (44) to make its telescopic end exit the first limiting hole (361), release the locking of the material bucket (4), and remove the material bucket (4) from the limiting component (3) to complete the entire stirring operation process.

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