Continuous stirrer

Abstract

The utility model relates to a continuous stirrer. Comprising a rack, and a premixing device and a secondary mixing device which are distributed up and down are mounted on the rack; the discharge hole of the premixing device is communicated with the feed end of the secondary mixing device; the premixing device comprises a premixing stirring barrel which is longitudinally arranged, the bottom of the premixing stirring barrel is in a plane shape, a discharging opening is formed in the edge of the premixing stirring barrel, a first discharging valve assembly is installed at the discharging opening, and the premixing device further comprises a first stirring assembly which is rotationally connected in the premixing stirring barrel and used for stirring materials and pushing the materials to the discharging opening. The device further comprises a second stirring drive. The secondary mixing device comprises a remixing container structure which is transversely arranged; a discharge port is formed in the outer end part of the remixing container structure; a discharge valve assembly II is mounted at the discharge port; and a second stirring assembly is rotationally connected into the remixing container structure and used for stirring the materials and pushing the materials to the discharging opening, and the remixing device further comprises a first stirring drive. According to the utility model, materials can be continuously pre-mixed and secondarily mixed, the mixing effect is good, the machine does not need to be stopped in the material adding and discharging process, the working efficiency is high, and the continuity is strong.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing equipment, and in particular relates to a continuous mixer. Background Technology

[0002] As natural stone resources become increasingly scarce, artificial stone slabs are gradually replacing natural stone in the field of decoration projects. Artificial stone slabs, as a new type of decorative material, are experiencing significant development opportunities.

[0003] Currently, the main methods for molding artificial stone slabs include: 1. Casting: This method produces synthetic stone slabs with a large amount of chemical adhesives, resulting in slabs with low strength, low density, and easy deformation and bending, limiting their application range. 2. Pressure and vibration molding: Compared to casting, this method produces synthetic stone slabs with significantly improved performance and reduced chemical adhesive usage, achieving a decorative and usability effect almost identical to natural stone. In the manufacturing process of artificial stone slabs, the mixing of raw materials is an essential step. Since the uniformity of the mixing directly affects the quality of the finished product, this step requires a high level of uniformity in the mixing of raw materials.

[0004] However, the mixing uniformity of existing mixing equipment is not ideal, which affects the quality of finished artificial stone slabs. In addition, when the raw materials need to be mixed a second time, the pre-mixed materials are usually mixed and then the machine is turned off. The materials are then transferred to the next mixing equipment for secondary mixing. In order to ensure operational safety, the machine needs to be stopped during the material addition process. This affects the continuity of secondary mixing of the mixing device and reduces efficiency. Therefore, it is urgent to design a continuous mixer to solve the above problems. Utility Model Content

[0005] This invention provides a continuous mixer with a reasonable structural design to solve the technical problems existing in the prior art. This invention can continuously premix and secondary mix materials, achieving good mixing results. No machine stoppage is required during material addition and unloading, resulting in high working efficiency and strong continuity.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A continuous mixer includes a frame, on which a premixing device and a secondary mixing device are installed vertically and vertically; the discharge port of the premixing device is connected to the inlet of the secondary mixing device; the premixing device includes a longitudinally arranged premixing tank fixed to the frame, the bottom of the premixing tank is flat and a discharge port is provided at the edge, a discharge valve assembly is installed at the discharge port, and a longitudinally arranged mixing group is rotatably connected inside the premixing tank. Component 1 is used to stir the material in the premixing tank and push the material to the discharge port, and also includes a stirring drive 2 for driving the stirring component 1 to rotate; the secondary mixing device includes a horizontally arranged remixing container structure fixed to the frame, a discharge port is opened at the outer end of the remixing container structure and a discharge valve component 2 is installed at the discharge port; the horizontally arranged stirring component 2 is rotatably connected inside the remixing container structure, used to stir the material in the remixing container structure and push the material to the discharge port, and also includes a stirring drive 1 for driving the stirring component 2 to rotate.

[0007] The advantages and positive effects of this utility model are as follows: This utility model provides a continuous mixer. Through the premixing device, materials can be vertically mixed to achieve premixing. Through the secondary mixing device, the premixed materials can be horizontally mixed to achieve secondary mixing, resulting in good mixing effect. Since the premixing device is located above the secondary mixing device, and the outlet of the premixing device is connected to the inlet of the secondary mixing device, material addition, multiple mixing operations, and unloading operations can be performed without stopping the machine during mixing. This reduces the material transfer and transportation links in multiple mixing processes, achieves continuous mixing operation, reduces labor intensity in the production process, and improves work efficiency.

[0008] Preferably, the stirring assembly includes a rotating shaft sleeve that seals and penetrates the premixing tank. A stirring vertical shaft is rotatably connected to the rotating shaft sleeve. A support arm mounting sleeve is installed at the upper end of the stirring vertical shaft. A first support arm, a second support arm, a third support arm, and a fourth support arm are fixedly connected to the support arm mounting sleeve, which are distributed circumferentially and increase in length sequentially. A first stirring rod is installed at the outer end of the first support arm. An inner stirring plate is installed on the first stirring rod, which is adjacent to the rotating shaft sleeve and has a clearance fit with it. A second stirring rod is installed at the outer end of the second support arm. A stirring blade is installed at the lower part of the second stirring rod. A third stirring rod is installed at the outer end of the third support arm. A stirring blade is installed at the lower part of the third stirring rod. A fourth stirring rod is installed at the outer end of the fourth support arm. An outer stirring plate is installed at the lower part of the fourth stirring rod.

[0009] Preferably, the discharge valve assembly includes a valve plate pivot seat fixed to the outer wall of the premixing tank, a longitudinally arranged rotating shaft pivotally connected to the valve plate pivot seat and a discharge valve plate fixed to the rotating shaft, and a valve plate support arm integrally formed at the pivot end of the discharge valve plate; it also includes a drive cylinder seat fixed to the outer wall of the premixing tank, and a discharge drive cylinder pivotally connected between the drive cylinder seat and the valve plate support arm; it also includes a discharge reinforcing plate installed at the bottom of the premixing tank, and a discharge slide corresponding to the discharge valve plate installed on the discharge reinforcing plate.

[0010] Preferably, the stirring assembly 2 includes a horizontally arranged stirring shaft that is rotatably connected to the remixing container structure. Several stirring mounting discs are fixed to the outer wall of the stirring shaft and evenly distributed along its axial direction. Several second scrapers and several scraper connecting plates are installed on each stirring mounting disc and distributed along the circumference. A first scraper with adjustable position is installed on each scraper connecting plate.

[0011] Preferably, the discharge valve assembly includes two guide grooves fixed to the end of the remixing container structure. The two guide grooves are distributed above and below the discharge port opened at the end of the remixing container structure. An insert plate is slidably inserted between the two guide grooves. A grooved connecting block is installed at the outer end of the insert plate. The assembly also includes a linear drive cylinder installed on the remixing container structure. A cylinder connector is installed at the extended end of the linear drive cylinder. The cylinder connector is movably connected to the grooved connecting block.

[0012] Preferably, the remixing container structure includes an outer mixing chamber fixed to a frame, an inner mixing liner fixed inside the outer mixing chamber, and a connecting inclined plate installed between the open end of the outer mixing chamber and the open end of the inner mixing liner; it also includes several wear-resistant liners fixed to the inner wall of the inner mixing liner.

[0013] Preferably, it also includes a discharge hood installed at the end of the remixing container structure and covering the discharge valve assembly 2, the lower end of the discharge hood being open. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the stirring component one in this utility model;

[0016] Figure 3 This is a three-dimensional structural schematic diagram of the unloading valve assembly one in this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the remixing container structure in this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the stirring component two in this utility model.

[0019] In the diagram: 1. Frame; 2. Mixing drive one; 3. Mixing drive two; 4. Premixing tank; 5. Mixing assembly one; 5-1. First support arm; 5-2. Second support arm; 5-3. Third support arm; 5-4. Fourth support arm; 5-5. Support arm mounting sleeve; 5-6. Vertical pole adapter block; 5-7. Fourth mixing rod; 5-8. Outer mixing plate; 5-9. First mixing rod; 5-10. Rotating shaft sleeve; 5-11. Mixing vertical shaft; 5-12. Inner mixing plate; 5-13. Second mixing rod; 5-14. Mixing blade one; 5-15. Third mixing rod; 5-16. Mixing blade two; 6. Discharge valve assembly one; 6-1. Discharge 6-1. Slide; 6-2. Unloading reinforcing plate; 6-3. Unloading valve plate; 6-4. Valve plate support arm; 6-5. Drive cylinder seat; 6-6. Unloading drive cylinder; 6-7. Pivot mounting shaft; 6-8. Valve plate pivot seat; 6-9. Valve plate reinforcing rib; 7. Mixing assembly two; 7-1. Mixing horizontal shaft; 7-2. First scraper; 7-3. Scraper connecting plate; 7-4. Second scraper; 7-5. Mixing mounting plate; 8. Remixing container structure; 8-1. Mixing outer box; 8-2. Mixing inner liner; 8-3. Connecting inclined plate; 8-4. Wear-resistant liner; 8-5. Slide receiving groove; 9. Discharge hood; 10. Unloading valve assembly two; 11. Guardrail. Detailed Implementation

[0020] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided in detail:

[0021] Please see Figure 1 The continuous mixer of this utility model includes a frame 1, on which a premixing device and a secondary mixing device are installed in a vertically distributed manner; the discharge port of the premixing device is connected to the feed end of the secondary mixing device.

[0022] The aforementioned premixing device includes a longitudinally arranged premixing tank 4 fixed to a frame 1, with several wear-resistant liners installed on the inner wall of the premixing tank 4. The bottom of the premixing tank 4 is flat and has a discharge port at the edge. A discharge valve assembly 6 is installed at the discharge port. The device also includes a longitudinally arranged stirring assembly 5 rotatably connected inside the premixing tank 4 for stirring the material inside the premixing tank 4 and pushing the material towards the discharge port. Furthermore, it includes a stirring drive 3 for driving the stirring assembly 5 to rotate.

[0023] See further Figure 2The aforementioned stirring assembly 5 includes a rotating shaft sleeve 5-10 that seals and penetrates the premixing tank 4. A stirring vertical shaft 5-11, rotatably connected to the rotating shaft sleeve 5-10, is inserted inside the rotating shaft sleeve 5-10. A support arm mounting sleeve 5-5 is installed at the upper end of the stirring vertical shaft 5-11. A first support arm 5-1, a second support arm 5-2, a third support arm 5-3, and a fourth support arm 5-4, distributed circumferentially and increasing in length sequentially, are fixedly connected to the support arm mounting sleeve 5-5. The stirring vertical shaft 5-11 is rotatably connected to the rotating shaft sleeve 5-10 via a rolling bearing. The upper end of the stirring vertical shaft 5-11 extends above the rotating shaft sleeve 5-10 and is detachably connected to the support arm mounting sleeve 5-5 via a locking nut. The upper end of the rotating shaft sleeve 5-10 extends into the inner cavity of the support arm mounting sleeve 5-5 and is clearance-fitted with it.

[0024] A longitudinally arranged first stirring rod 5-9 is installed at the outer end of the first arm 5-1. An inner stirring plate 5-12 is installed on the first stirring rod 5-9, which is adjacent to and clearance-fitted with the rotating shaft sleeve 5-10. A longitudinally arranged second stirring rod 5-13 is installed at the outer end of the second arm 5-2. A stirring blade 5-14 with a plow-shaped structure is installed at the lower part of the second stirring rod 5-13. A longitudinally arranged third stirring rod 5-15 is installed at the outer end of the third arm 5-3. A stirring blade 5-16 with a plow-shaped structure is installed at the lower part of the third stirring rod 5-15. A longitudinally arranged fourth stirring rod 5-7 with an outer stirring plate 5-8 with an inclined arrangement is installed at the lower part of the fourth stirring rod 5-7. In this embodiment, the outer stirring plate 5-8, stirring blade one 5-14 and stirring blade two 5-16 are all close to the bottom surface of the premixing tank 4 and are fitted with it with a gap.

[0025] In addition, a pole adapter block 5-6 is welded and fixed to the outer end of the first arm 5-1, the second arm 5-2, the third arm 5-3 and the fourth arm 5-4. A through hole for passing through the corresponding stirring rod is opened in the middle of the pole adapter block 5-6. The stirring rod is detachably connected to the pole adapter block 5-6 by a screw screwed into it.

[0026] like Figure 1 As shown, the above-mentioned stirring drive 3 includes a drive motor with the output shaft arranged longitudinally. A transmission pair is installed between the drive motor and the stirring vertical shaft 5-11 in the stirring assembly 5. The transmission pair can be a pulley transmission pair or a sprocket transmission pair. In this embodiment, a pulley transmission pair is used.

[0027] See further Figure 3The aforementioned discharge valve assembly 6 includes a valve plate pivot seat 6-8 fixedly attached to the outer wall of the premixing tank 4, a longitudinally arranged rotating shaft pivotally connected to the valve plate pivot seat 6-8 and a discharge valve plate 6-3 fixedly attached to the rotating shaft, and a valve plate support arm 6-4 integrally formed at the pivot end of the discharge valve plate 6-3; it also includes a drive cylinder seat 6-5 fixedly attached to the outer wall of the premixing tank 4, and a discharge drive cylinder 6-6 pivotally connected between the drive cylinder seat 6-5 and the valve plate support arm 6-4; it also includes a discharge reinforcing plate 6-2 installed at the bottom of the premixing tank 4, and a discharge slide 6-1 corresponding to the discharge valve plate 6-3 installed on the discharge reinforcing plate 6-2.

[0028] Several valve plate reinforcing ribs 6-9 are provided on the bottom surface of the discharge valve plate 6-3. The discharge valve plate 6-3 is adapted to the discharge port opened on the bottom surface of the premixing tank 4. A pivot mounting shaft 6-7 is pivotally connected to the outer end of the valve plate support arm 6-4. The discharge drive cylinder 6-6 is arranged laterally and the cylinder barrel of the discharge drive cylinder 6-6 is pivotally connected to the drive cylinder seat 6-5 through a pin. The extended end of the discharge drive cylinder 6-6 is pivotally connected to the pivot mounting shaft 6-7 through a cylinder joint.

[0029] During operation, the rotating vertical shaft 5-11 drives the outer mixing plate 5-8 to revolve, and the outer mixing plate 5-8 can completely sweep over the discharge valve plate 6-3 in the discharge valve assembly 6.

[0030] See further Figure 1 The aforementioned secondary mixing device includes a remixing container structure 8 fixedly attached to the frame 1 and arranged laterally. A discharge port is provided at the outer end of the remixing container structure 8 and a discharge valve assembly 2 10 is installed at the discharge port. A stirring assembly 2 7 is rotatably connected inside the remixing container structure 8 for stirring the material inside the remixing container structure 8 and pushing the material to the discharge port. The device also includes a stirring drive 1 2 for driving the stirring assembly 2 7 to rotate.

[0031] like Figure 5As shown, the aforementioned stirring assembly 7 includes a horizontally arranged stirring shaft 7-1 rotatably connected to the remixing container structure 8. A plurality of stirring mounting discs 7-5, evenly distributed along its axial direction, are welded and fixed to the outer wall of the stirring shaft 7-1. Each stirring mounting disc 7-5 is equipped with a plurality of circumferentially distributed second scrapers 7-4 and a plurality of scraper connecting plates 7-3. Each scraper connecting plate 7-3 is equipped with a position-adjustable first scraper 7-2. In this embodiment, four second scrapers 7-4 and two scraper connecting plates 7-3 are provided. The two scraper connecting plates 7-3 are centrally symmetrical about the stirring mounting discs 7-5, and the four second scrapers 7-4 are arranged in pairs between the two scraper connecting plates 7-3. The second scrapers 7-4 are bent, with the bending direction pointing towards the discharge port opened at the end of the remixing container structure 8. A strip-shaped hole is provided on the first scraper 7-2, and the first scraper 7-2 and the scraper connecting plate 7-3 are locked together by bolts and lock nuts passing through the strip-shaped hole.

[0032] like Figure 4 As shown, the above-mentioned stirring drive 2 includes a drive motor mounted on the frame 1 and a reducer mounted on the frame 1. The output shaft of the reducer is connected to the stirring horizontal shaft 7-1 in the stirring assembly 7. A transmission pair is installed between the output shaft of the drive motor and the input shaft of the reducer. The above-mentioned transmission pair can be a pulley transmission pair or a sprocket transmission pair. In this embodiment, a pulley transmission pair is used.

[0033] Furthermore, the aforementioned discharge valve assembly 2 10 includes two guide grooves fixed to the end of the remixing container structure 8. The two guide grooves are distributed above and below the discharge port opened at the end of the remixing container structure 8. An insert plate is slidably passed between the two guide grooves, and a grooved connecting block is installed at the outer end of the insert plate. It also includes a linear drive cylinder installed on the remixing container structure 8. A cylinder connector is installed at the extended end of the linear drive cylinder. A U-shaped slot is opened on the grooved connecting block. The aforementioned cylinder connector passes through the U-shaped slot and is movably connected to it.

[0034] See further Figure 4 The aforementioned remixing container structure 8 includes an outer mixing chamber 8-1 fixedly connected to the frame 1, an inner mixing liner 8-2 fixedly connected inside the outer mixing chamber 8-1, and a connecting inclined plate 8-3 installed between the open end of the outer mixing chamber 8-1 and the open end of the inner mixing liner 8-2; it also includes several wear-resistant liners 8-4 fixedly connected to the inner wall of the inner mixing liner 8-2. The connecting inclined plate 8-3 is inclined, with the inclination direction gradually approaching the inner mixing liner 8-2 from top to bottom. A slide channel receiving groove 8-5 adapted to the outer wall of the discharge slide channel 6-1 is provided at the inner end of the outer mixing chamber 8-1.

[0035] like Figure 1As shown, this embodiment also includes a discharge hood 9 installed at the end of the remixing container structure 8, covering the discharge valve assembly 2 10, with the lower end of the discharge hood 9 being open. Additionally, guardrails 11 and ladders are installed on the frame 1 to facilitate maintenance by personnel.

[0036] Working principle:

[0037] In actual operation, the stirring drive 3 in the premixing device and the stirring drive 2 in the secondary mixing device are activated. The various raw materials requiring premixing are poured into the premixing tank 4 according to the specified ratio. The activated stirring drive 3 drives the stirring component 5 to rotate, thereby stirring the materials in the premixing tank 4. Given that the first arm 5-1, the second arm 5-2, the third arm 5-3, and the fourth arm 5-4 are circumferentially distributed and their lengths increase sequentially, the rotating stirring component 5 can stir the materials in the middle area of ​​the premixing tank 4. The material in the middle area is stirred with the surrounding material and pushed towards the discharge port during the unloading operation. After a period of premixing, the unloading drive cylinder 6-6 in the unloading valve assembly 6 is activated, which drives the unloading valve plate 6-3 to swing outward, thereby opening the discharge port. Under the action of the stirring assembly 5, the material falls from the discharge port into the remixing container structure 8. After the premixing device completes the unloading operation, raw materials can be added to the premixing tank 4 again, and then the subsequent premixing operation can be carried out when the secondary mixing device is working.

[0038] The activated stirring drive 2 can drive the stirring component 7 to rotate, thereby performing a secondary mixing operation on the material in the remixing container structure 8. At the same time, other materials / additives can be added to the remixing container structure 8 during the above-mentioned stirring operation. After a period of secondary mixing operation, the discharge valve component 10 is activated to open the discharge port at the end of the remixing container structure 8, thereby performing a discharge operation. After the remixing container structure 8 is emptied, the discharge port of the premixing tank 4 can be opened to discharge the premixed material back into the remixing container structure 8 for secondary mixing operation. Premixing and secondary mixing operations can be performed continuously without stopping the machine.

Claims

1. A continuous mixer characterized by: The utility model provides a premixing device and secondary mixing device, which are arranged in an up-down distribution on a rack (1), and a discharge port of the premixing device is communicated with a feeding end of the secondary mixing device.

2. The continuous mixer of claim 1, wherein: The stirring assembly one (5) comprises a rotating shaft sleeve (5-10) penetrating through the premixing stirring barrel (4) in a sealed mode, a stirring vertical shaft (5-11) is arranged in the rotating shaft sleeve (5-10) and connected with the rotating shaft sleeve (5-10) in a rotating mode, a branch arm mounting sleeve (5-5) is arranged on the upper end of the stirring vertical shaft (5-11), first, second, third and fourth branch arms (5-1, 5-2, 5-3 and 5-4) are arranged on the branch arm mounting sleeve (5-5) in a circumferential distribution and in a length-increasing sequence, a first stirring rod (5-9) is arranged on the outer end of the first branch arm (5-1), an inner stirring plate (5-12) is arranged on the first stirring rod (5-9) and closely arranged on the rotating shaft sleeve (5-10) and matched with the rotating shaft sleeve (5-10) in a gap mode, a second stirring rod (5-13) is arranged on the outer end of the second branch arm (5-2), a stirring blade one (5-14) is arranged on the lower part of the second stirring rod (5-13), a third stirring rod (5-15) is arranged on the outer end of the third branch arm (5-3), a stirring blade two (5-16) is arranged on the lower part of the third stirring rod (5-15), a fourth stirring rod (5-7) is arranged on the outer end of the fourth branch arm (5-4), and an outer stirring plate (5-8) is arranged on the lower part of the fourth stirring rod (5-7).

3. The continuous mixer of claim 1, wherein: The unloading valve assembly one (6) comprises a valve plate pivot base (6-8) fixed on the outer wall of the premixing stirring barrel (4), a rotating shaft is pivotally connected on the valve plate pivot base (6-8), and an unloading valve plate (6-3) is fixed on the rotating shaft; a valve plate supporting arm (6-4) is integrally formed on the pivot end of the unloading valve plate (6-3); a driving cylinder seat (6-5) is fixed on the outer wall of the premixing stirring barrel (4), and an unloading driving cylinder (6-6) is pivotally connected between the driving cylinder seat (6-5) and the valve plate supporting arm (6-4); an unloading reinforcing plate (6-2) is installed on the bottom of the premixing stirring barrel (4), and a discharging chute (6-1) corresponding to the unloading valve plate (6-3) is installed on the unloading reinforcing plate (6-2).

4. The continuous mixer of claim 1 wherein: The stirring assembly two (7) comprises a stirring horizontal shaft (7-1) transversely arranged and rotationally connected with the remixing container structure (8), a plurality of stirring mounting discs (7-5) uniformly distributed along the axial direction of the stirring horizontal shaft (7-1) are fixed on the outer wall of the stirring horizontal shaft (7-1), a plurality of second scrapers (7-4) distributed in the circumferential direction and a plurality of scraper connecting plates (7-3) are installed on each stirring mounting disc (7-5), and a first scraper (7-2) with adjustable position is installed on each scraper connecting plate (7-3).

5. The continuous mixer of claim 1, wherein: The unloading valve assembly two (10) comprises two guide groove members fixed on the end of the remixing container structure (8), the two guide groove members are arranged above and below the unloading port opened on the end of the remixing container structure (8), a plug plate is slidably arranged between the two guide groove members, a grooved connecting block is installed on the outer end of the plug plate; a linear driving air cylinder is installed on the remixing container structure (8), a cylinder connecting head is installed on the extending end of the linear driving air cylinder, and the cylinder connecting head is movably connected with the grooved connecting block.

6. The continuous mixer of claim 1, wherein: The remixing container structure (8) comprises a stirring outer box (8-1) fixed on the rack (1), a stirring inner container (8-2) fixed in the stirring outer box (8-1), and a connecting inclined plate (8-3) installed between the open end of the stirring outer box (8-1) and the open end of the stirring inner container (8-2); a plurality of wear-resistant lining plates (8-4) are fixed on the inner wall of the stirring inner container (8-2).

7. The continuous mixer of claim 1, wherein: The discharging cover (9) covering the unloading valve assembly two (10) is installed on the end of the remixing container structure (8), and the lower end of the discharging cover (9) is open.

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