Scraper blade device applied to horizontal helical ribbon stirring equipment

Abstract

The utility model relates to a scraper device applied to horizontal helical ribbon stirring equipment, and relates to the field of stirring equipment. The scraping mechanisms are arranged among the multiple double-helical-ribbon stirring paddles at intervals, the first ends of the scraping mechanisms are connected with the stirring shaft, and the second ends of the scraping mechanisms are used for scraping the inner circumferential wall of the U-shaped barrel. Under the condition, the problem that materials adhere to the inner wall of the U-shaped barrel can be solved, the cleaning difficulty and the maintenance cost of equipment are reduced, the mixing uniformity is improved, and material waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring equipment, in particular to a scraper device applied to horizontal spiral ribbon stirring equipment. Background Art

[0002] As a highly efficient mixing device, the horizontal ribbon mixer is widely used in the chemical, pharmaceutical, food, feed, plastics, and construction industries. It is particularly suitable for mixing powders, granules, and powders with small amounts of liquid, ensuring uniform distribution and thorough mixing. The mixer's structure primarily consists of a U-shaped barrel, ribbon impellers, and transmission components. The U-shaped barrel provides a closed mixing space for the materials, while the ribbon impellers achieve convection mixing through a double-layer design. The outer ribbon brings the materials from both sides toward the center, while the inner ribbon transports the materials from the center to the sides, creating a highly efficient convection mixing process.

[0003] However, despite the excellent performance of horizontal ribbon mixers in various industries, existing technology still has some shortcomings. One major issue is the tendency of materials to stick to the inner wall of the U-shaped barrel. This sticking phenomenon is particularly pronounced when handling highly viscous materials. Material sticking not only leads to uneven mixing and affects the quality of the final product, but also increases the difficulty of cleaning the equipment and maintenance costs. Furthermore, material stuck to the inner wall of the barrel is difficult to completely remove, resulting in material waste and increased production costs. Summary of the Invention

[0004] The purpose of the utility model is to provide a scraper device applied to a horizontal spiral ribbon stirring device to solve the problems existing in the above-mentioned prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A scraper device for a horizontal ribbon stirring device comprises a U-shaped cylinder, a stirring shaft rotatably disposed in the U-shaped cylinder, and a plurality of double-ribbon stirring paddles distributed on the stirring shaft. The scraper device for a horizontal ribbon stirring device further comprises:

[0007] The scraping mechanism is arranged at intervals between the plurality of double-ribbon stirring paddles, a first end of which is connected to the stirring shaft, and a second end of which is used to scrape the inner circumferential wall of the U-shaped cylinder.

[0008] In a possible implementation, the scraping mechanism includes:

[0009] a scraper support rod, a first end of which is fixed to the stirring shaft;

[0010] a scraper connected to the second end of the scraper support rod via an elastic member; and

[0011] The limiting guide is used to limit and guide the scraper so that the scraper moves along the radial direction of the U-shaped cylinder.

[0012] In a possible implementation, the elastic member includes:

[0013] an elastic cavity, which is opened inside the second end of the scraper support rod;

[0014] a spring disposed in the elastic cavity; and

[0015] an elastic telescopic rod, a first end of which is connected to the scraper, and a second end of which is telescopically disposed in the elastic cavity;

[0016] Wherein, one end of the spring close to the scraper is connected to the second end of the elastic telescopic rod through a spring seat.

[0017] In a possible implementation, a limit ring is further provided on the second end of the elastic telescopic rod, and the limit ring is located on the side of the spring seat away from the spring. The limit ring is used to prevent the second end of the elastic telescopic rod from sliding out of the elastic cavity.

[0018] In a possible implementation, the scraper is fixed to the first end of the elastic telescopic rod through a clamping plate and a bolt.

[0019] In a possible implementation, the limiting guide member includes:

[0020] a guide block mounted on one side of the scraper; and

[0021] A limiting groove is installed on the double-screw stirring paddle;

[0022] Wherein, the guide block is slidably connected to the limiting groove.

[0023] In a possible implementation, the double-ribbon stirring paddle includes a first ribbon stirring blade and a second ribbon stirring blade located outside the first ribbon stirring blade.

[0024] In a possible implementation, the plurality of scraping mechanisms are regularly staggered, irregularly staggered, or arranged on the same side.

[0025] In a possible implementation, the stirring shaft is driven by a driving motor.

[0026] The beneficial effects of the technical solution provided by the utility model include at least:

[0027] By spacing scraping mechanisms between the multiple twin-ribbon agitators, with the first end of the scraping mechanism connected to the agitator shaft and the second end used to scrape the inner wall of the U-shaped cylinder, this solves the problem of material sticking to the inner wall of the U-shaped cylinder, reduces cleaning difficulty and maintenance costs, improves mixing uniformity, and reduces material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0029] Figure 1 A schematic structural diagram of a scraper device applied to a horizontal ribbon stirring device provided by an exemplary embodiment of the present invention is shown.

[0030] Figure 2 A schematic structural diagram of a scraping mechanism of a scraper device applied to a horizontal spiral ribbon stirring device provided by an exemplary embodiment of the present invention is shown.

[0031] Figure 3 A side view schematically shows a scraping mechanism of a scraper device applied to a horizontal ribbon stirring device provided by an exemplary embodiment of the present invention.

[0032] Figure 4 A schematic structural diagram of a limiting guide member of a scraping mechanism of a scraper device applied to a horizontal spiral ribbon stirring device provided by an exemplary embodiment of the present invention is shown.

[0033] Figure 5 A schematic diagram of the rotation direction of a double-ribbon stirring paddle of a scraper device applied to a horizontal ribbon stirring device provided by an exemplary embodiment of the present invention is shown.

[0034] In the picture:

[0035] 1. U-shaped cylinder; 2. Stirring shaft; 3. Double-screw stirring paddle; 4. Scraping mechanism; 5. Driving motor;

[0036] 31. First spiral ribbon stirring blade; 32. Second spiral ribbon stirring blade;

[0037] 41. Scraper support rod; 42. Scraper; 43. Elastic member; 44. Position limiting guide; 45. Clamping plate; 46. Bolt;

[0038] 431, elastic cavity; 432, spring; 433, elastic telescopic rod; 434, spring seat; 435, limit ring;

[0039] 441. Guide block; 442. Limiting groove. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Among them, the same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings of the present utility model specification, and the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from specific parts, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model specification, the meaning of "multiple" is two or more.

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0043] Figure 1 A schematic structural diagram of a scraper device for a horizontal ribbon mixer, provided by an exemplary embodiment of the present invention, is shown. The scraper device for a horizontal ribbon mixer comprises a U-shaped cylinder 1, a stirring shaft 2 rotatably disposed within the U-shaped cylinder 1, a plurality of double-ribbon stirring paddles 3 distributed on the stirring shaft 2, and a scraping mechanism 4. The scraping mechanism 4 is spaced between the plurality of double-ribbon stirring paddles 3. The first end of the scraping mechanism 4 is connected to the stirring shaft 2, and the second end of the scraping mechanism 4 is used to scrape the inner circumferential wall of the U-shaped cylinder 1. The stirring shaft 2 is driven by a drive motor 5.

[0044] In the embodiment of the present application, the double-ribbon stirring paddle 3 includes a first spiral ribbon stirring blade 31 and a second spiral ribbon stirring blade 32 located outside the first spiral ribbon stirring blade 31 .

[0045] Optionally, the plurality of scraping mechanisms 4 are regularly staggered, irregularly staggered, or arranged on the same side.

[0046] Figure 2A structural schematic diagram of a scraper mechanism of a scraper device applied to a horizontal spiral ribbon mixing equipment provided by an exemplary embodiment of the present invention is shown. The above-mentioned scraper mechanism 4 includes a scraper support rod 41, a scraper 42, and a limiting guide 44. The first end of the scraper support rod 41 is fixed to the mixing shaft 2; the scraper 42 is connected to the second end of the scraper support rod 41 through an elastic member 43; the limiting guide 44 is used to limit and guide the scraper 42 so that the scraper 42 is displaced radially along the U-shaped cylinder 1.

[0047] It should be noted that the scraper 42 is made of tetrafluoroethylene (PTFE). During the mixing process, the Teflon scraper 42 adheres tightly to the inner wall of the U-shaped cylinder. Its low friction and non-stick properties effectively scrape away material adhering to the inner wall, ensuring uniform distribution of the material. Furthermore, the Teflon material's heat resistance and wear resistance ensure that the scraper 42 maintains excellent performance even under high temperatures and prolonged use, extending the life of the equipment. This improvement not only improves the mixing performance of the horizontal ribbon mixer, but also reduces production costs and increases overall production efficiency.

[0048] Furthermore, the elastic member 43 includes an elastic cavity 431, a spring 432, and an elastic telescopic rod 433. The elastic cavity 431 is located inside the second end of the scraper support rod 41; the spring 432 is disposed within the elastic cavity 431; the first end of the elastic telescopic rod 433 is connected to the scraper 42, and the second end of the elastic telescopic rod 433 is telescopically disposed within the elastic cavity 431. The end of the spring 432 closest to the scraper 42 is connected to the second end of the elastic telescopic rod 433 via a spring seat 434. A limit ring 435 is also disposed on the second end of the elastic telescopic rod 433. The limit ring 435 is located on the side of the spring seat 434 away from the spring 432 and is used to prevent the second end of the elastic telescopic rod 433 from sliding out of the elastic cavity 431.

[0049] In the embodiment of the present application, the deformation force released by the spring 432 is used to offset the force exerted on the scraper 42 during the rotation process, so as to ensure that the scraper 42 is in close contact with the inner circumferential wall of the U-shaped cylinder 1.

[0050] It is worth mentioning that an O-ring is provided at the position where the second end of the elastic telescopic rod 433 slides with the elastic cavity 431 to prevent foreign matter from entering the elastic cavity 431 .

[0051] Figure 3 A side view schematic diagram of a scraping mechanism of a scraper device applied to a horizontal ribbon mixing device provided by an exemplary embodiment of the present invention is shown, wherein the scraper 42 is fixed to the first end of the elastic telescopic rod 433 by a clamping plate 45 and a bolt 46 .

[0052] Figure 4A structural schematic diagram of a limiting guide member of a scraping mechanism of a scraper device applied to a horizontal spiral ribbon mixing equipment provided by an exemplary embodiment of the present invention is shown, wherein the limiting guide member 44 includes a guide block 441 installed on one side of the scraper 42, and a limiting groove 442 installed on the second spiral ribbon mixing blade 32, wherein the guide block 441 is slidably connected to the limiting groove 442.

[0053] Next, the working principle of the scraper device applied to the horizontal ribbon stirring equipment involved in the embodiment of the present invention is explained. Figure 5 A schematic diagram of the rotation direction of a double-ribbon stirring paddle of a scraper device applied to a horizontal ribbon stirring device provided by an exemplary embodiment of the present invention is shown.

[0054] When the horizontal ribbon stirring equipment is in working state, the driving motor drives the stirring shaft to rotate, driving the multiple double-ribbon stirring paddles on the stirring shaft to rotate;

[0055] Since the scraper mechanism is fixed on the stirring shaft, and the scraper is connected to the double-screw stirring paddle through the limiting guide, the scraper mechanism rotates along with the double-screw stirring paddle;

[0056] Since the scraper is connected to the second end of the scraper support rod through the elastic member, the scraper is always in close contact with the inner wall of the U-shaped cylinder 1, thereby scraping off the material adhered to the inner wall of the U-shaped cylinder.

[0057] In summary, by spacing scraping mechanisms between the multiple twin-ribbon agitators, with the first end of the scraping mechanism connected to the agitator shaft and the second end used to scrape the inner circumference of the U-shaped cylinder, the problem of material adhering to the inner wall of the U-shaped cylinder can be solved, the cleaning difficulty and maintenance costs of the equipment can be reduced, the mixing uniformity can be improved, and material waste can be reduced.

[0058] In the embodiments disclosed in this utility model, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments disclosed in this utility model based on specific circumstances.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A scraper device for a horizontal spiral ribbon stirring device, comprising a U-shaped cylinder (1), a stirring shaft (2) rotatably arranged in the U-shaped cylinder (1), and a plurality of double-spiral ribbon stirring blades (3) distributed on the stirring shaft (2), characterized in that: The scraper device applied to the horizontal ribbon stirring equipment also includes: A scraping mechanism (4) is arranged at intervals between the plurality of double-ribbon stirring blades (3), a first end of which is connected to the stirring shaft (2), and a second end of which is used to scrape the inner peripheral wall of the U-shaped cylinder (1).

2. The scraper device for horizontal ribbon stirring equipment according to claim 1, characterized in that: The scraping mechanism (4) comprises: a scraper support rod (41), a first end of which is fixed to the stirring shaft (2); a scraper (42) connected to the second end of the scraper support rod (41) via an elastic member (43); and A limiting guide (44) is used to limit and guide the scraper (42) so that the scraper (42) is displaced along the radial direction of the U-shaped cylinder (1).

3. The scraper device for horizontal ribbon stirring equipment according to claim 2, characterized in that: The elastic member (43) comprises: an elastic cavity (431) opened on the inner side of the second end of the scraper support rod (41); a spring (432) disposed in the elastic cavity (431); and An elastic telescopic rod (433), a first end of which is connected to the scraper (42), and a second end of which is telescopically disposed in the elastic cavity (431); One end of the spring (432) close to the scraper (42) is connected to the second end of the elastic telescopic rod (433) via a spring seat (434).

4. The scraper device for horizontal ribbon stirring equipment according to claim 3, characterized in that: A limit ring (435) is also provided on the second end of the elastic telescopic rod (433). The limit ring (435) is located on a side of the spring seat (434) away from the spring (432). The limit ring (435) is used to prevent the second end of the elastic telescopic rod (433) from sliding out of the elastic cavity (431).

5. The scraper device for horizontal ribbon stirring equipment according to claim 3, characterized in that: The scraper (42) is fixed to the first end of the elastic telescopic rod (433) via a clamping plate (45) and a bolt (46).

6. The scraper device for horizontal ribbon stirring equipment according to claim 2, characterized in that: The limiting guide member (44) includes: A guide block (441) mounted on one side of the scraper (42); and A limiting groove (442) is installed on the double-ribbon stirring paddle (3); Wherein, the guide block (441) is slidably connected to the limiting groove (442).

7. The scraper device for horizontal ribbon mixing equipment according to claim 1, characterized in that: The double-ribbon stirring paddle (3) comprises a first spiral stirring blade (31) and a second spiral stirring blade (32) located outside the first spiral stirring blade (31).

8. The scraper device for horizontal ribbon mixing equipment according to claim 1, characterized in that: The plurality of scraping mechanisms (4) are regularly staggered, irregularly staggered, or arranged on the same side.

9. The scraper device for horizontal ribbon mixing equipment according to claim 1, characterized in that: The stirring shaft (2) is driven by a driving motor (5).

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