Gypsum mortar screening device

Abstract

The utility model relates to the technical field of separation, in particular to a gypsum mortar screening device. Comprising a base, a power mechanism and an unblocking mechanism. An outer cylinder is fixed on the base; the outer cylinder axis is arranged front and back; a screening cylinder is coaxially arranged in the outer cylinder; the front end of the screening cylinder is provided with a feeding port, and the rear end is provided with a first discharging port. Mounting rings are arranged at two ends of the screening cylinder; a plugging ring is coaxially fixed on the outer side wall of the mounting ring; the plugging rings are rotatably mounted at front and rear ends of the outer cylinder; an outer cavity is defined by the plugging ring, the outer cylinder and the screening cylinder; a second discharge hole is formed in the lower end of the outer cavity. When washed sand is screened, the screening barrel is driven to rotate, and the unblocking mechanism provides impact force from the outer cavity to the interior of the screening barrel for large-particle materials clamped in the screening holes of the screening barrel, so that the large-particle materials clamped in the screening holes of the screening barrel are pushed into the screening barrel, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of separation, in particular to a gypsum mortar screening device. Background Art

[0002] Gypsum mortar production refers to mixing a certain proportion of washed sand, gypsum powder and other raw materials, as well as catalysts, and obtaining uniform powdered lime mortar through stirring. In the process of producing gypsum mortar, it is necessary to screen the washed sand to screen out the large particles in the washed sand to avoid affecting the flatness of the mixed gypsum mortar when painting the wall.

[0003] In the prior art, for example, the Chinese patent with the announcement number CN216705001U and the name of the gypsum mortar screening and filtering device, the public technical solution records that the bolted upper cylinder and the lower cylinder form a cylinder, the upper cylinder end is provided with a feed port, the end of the lower cylinder away from the feed port is provided with a first discharge port horizontally, and a second discharge port is provided longitudinally, and a screen cylinder with an opening at one end is provided inside, and the material enters the screen cylinder, and the small particle material can pass through the screen cylinder and move to the outside of the screen cylinder, and is discharged from the first discharge port, and the large particle material is intercepted in the screen cylinder and discharged from the second discharge port, and when the discharge hole 1 and the discharge hole 2 are in contact, the large particle material can be discharged. As the screening proceeds, some large particle materials may just get stuck in the screen holes of the screen cylinder, thereby affecting the screening efficiency of the screen cylinder. Utility Model Content

[0004] The utility model provides a gypsum mortar screening device to solve the above problems.

[0005] The utility model adopts the following technical scheme: a gypsum mortar screening device, including a base, a power mechanism, and a clearing mechanism; an outer cylinder is fixed on the base; the axis of the outer cylinder is arranged front and back; a screening cylinder is coaxially arranged in the outer cylinder; a feed port is arranged at the front end of the screening cylinder, and a first discharge port is arranged at the rear end;

[0006] Both ends of the screening cylinder are provided with mounting rings; a plugging ring is coaxially fixed on the outer wall of the mounting ring; the plugging ring is rotatably mounted at the front and rear ends of the outer cylinder; the plugging ring, the outer cylinder and the screening cylinder form an outer cavity; a second discharge port is provided at the lower end of the outer cavity;

[0007] The power mechanism is used to drive the screening drum to rotate;

[0008] The clearing mechanism is arranged in the outer cavity and above the screening drum. It is used to provide an impact force from the outer cavity to the screening drum to the large particle materials stuck in the sieve holes of the screening drum when the screening drum rotates, so as to push the large particle materials stuck in the sieve holes of the screening drum into the screening drum.

[0009] Furthermore, the blockage clearing mechanism includes a brush plate and a driving assembly; the brush plate is arranged in the outer cavity along the axis of the screening cylinder; the brush plate is radially slidably installed on the inner wall of the outer cylinder; an elastic assembly is connected between the brush plate and the outer cylinder;

[0010] A plurality of bristles are fixed on the side wall of the brush plate close to the screening cylinder; the bristles are arranged radially along the screening cylinder; the bristles are in the shape of elastic rods; the bristles abut against the outer side wall of the screening cylinder;

[0011] The driving assembly is used to periodically drive the brush plate to drive the bristles away from the screening cylinder, so that the elastic component accumulates force, and then the elastic component releases the force, driving the bristles to provide impact force from the outer cavity to the inside of the screening cylinder for large particle materials stuck in the sieve holes of the screening cylinder.

[0012] Furthermore, the driving assembly includes a driving protrusion and a matching protrusion; a plurality of driving protrusions are arranged around the mounting ring in the circumferential direction; the driving protrusion is arranged between the two blocking rings; a side wall at one end of the driving protrusion is arranged as a force storage wall, the force storage wall is in an arc shape, and a side wall at the other end is arranged as a force release wall; the force release wall is arranged along the radial direction of the screening cylinder;

[0013] The mating convex is fixed at both ends of the screen plate; the lower end of the mating convex is arc-shaped; the lower end of the mating convex abuts against the force storage wall of the driving convex. The power mechanism drives the screening cylinder and the mounting ring to rotate. When the mating convex slides along the force storage wall, the brush plate drives the bristles away from the screening cylinder and cleans the outer wall of the screening cylinder, and cleans the materials adhering to the outer wall of the screening cylinder to the lower end of the outer cavity, thereby improving the recovery rate of the materials after screening; when the screen plate is away from the screening cylinder, the elastic component is compressed to store force, and when the mating convex slides from the force storage wall to the force release wall, the elastic component releases force, and the bristles corresponding to the sieve holes of the screening cylinder provide impact force from the outer cavity to the inside of the screening cylinder for the large particles stuck in the sieve holes of the screening cylinder, so as to push the large particles stuck in the sieve holes of the screening cylinder into the screening cylinder, and the remaining bristles hit the outer wall of the screening cylinder to knock the screening cylinder, while assisting screening, promoting the large particles to separate from the sieve holes.

[0014] Furthermore, the elastic component includes a telescopic rod; the telescopic rod is arranged between the outer tube and the brush plate, the telescopic rod is arranged radially along the outer tube, one end of the telescopic rod is fixed on the outer tube, and the other end is fixed on the brush plate; a spring is sleeved on the telescopic rod; one end of the spring is fixed on the inner wall of the outer tube, and the other end is fixed on the brush plate.

[0015] Furthermore, the power mechanism includes a power motor and a power ring; the power ring is sleeved on the outside of one of the sealing rings; the power ring and the corresponding sealing ring are fixedly connected; the power ring is a gear ring; the power motor is fixed on the base; the power motor output shaft and the power ring are driven by gear meshing.

[0016] Furthermore, the base is tilted so that the front end of the screening drum is higher than the rear end, so that the large particles of materials retained in the screening drum can be moved to the first discharge port and discharged.

[0017] The beneficial effects are as follows: When screening washed sand, the screening cylinder is driven to rotate, and the blockage clearing mechanism provides an impact force from the outer cavity to the inside of the screening cylinder on the large-particle materials stuck in the screening holes of the screening cylinder, so as to push the large-particle materials stuck in the screening holes of the screening cylinder into the screening cylinder, improving the screening efficiency. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Structural schematic diagram of an embodiment of a gypsum mortar screening device of the present invention;

[0020] Figure 2 Rear view of the embodiment of the present invention;

[0021] Figure 3 For Figure 2 Cross-sectional view taken along line A-A in

[0022] Figure 4 For Figure 3 Enlarged view at C in

[0023] Figure 5 Side view of the embodiment of the present invention;

[0024] Figure 6 For Figure 5 Cross-sectional view taken along line B-B in

[0025] Figure 7 For Figure 6 Enlarged view at D in

[0026] Figure 8 Schematic diagram of the screening cylinder, plugging ring, power ring and driving convex of the embodiment of the present invention;

[0027] Figure 9 Schematic diagram of the blockage clearing mechanism of the embodiment of the present invention.

[0028] In the figure: 100, base; 200, outer cylinder; 300, screening cylinder; 310, feed inlet; 320, first discharge outlet; 400, mounting ring; 500, plugging ring; 510, outer cavity; 511, second discharge outlet; 610, power motor; 620, power ring; 710, brush plate; 720, driving convex; 730, mating convex; 740, elastic component. Detailed Embodiments

[0029] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0030] The features of the terms "first" and "second" in the description and claims of the present utility model may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] An embodiment of a gypsum mortar screening device of the present utility model is as Figures 1 to 9 shown: A gypsum mortar screening device includes a base 100, a power mechanism, and a clogging clearing mechanism; an outer cylinder 200 is fixed on the base 100; the axis of the outer cylinder 200 is arranged front and back; a screening cylinder 300 is coaxially arranged inside the outer cylinder 200; a feed port 310 is provided at the front end of the screening cylinder 300, and a first discharge port 320 is provided at the rear end; a first collection box is provided below the first discharge port 320.

[0034] Installation rings 400 are provided at both ends of the screening cylinder 300; a blocking ring 500 is coaxially fixed on the outer side wall of the installation ring 400;

[0035] The plugging ring 500 is rotatably installed at the front and rear ends of the outer cylinder 200; the plugging ring 500, the outer cylinder 200 and the screening cylinder 300 enclose an outer cavity 510; a second discharge port 511 is provided at the lower end of the outer cavity 510; a second collection box is provided below the second discharge port 511.

[0036] The base 100 is inclined such that the front end of the screening cylinder 300 is higher than the rear end. This facilitates the movement of large-particle materials remaining in the screening cylinder 300 to the first discharge port 320 and their discharge.

[0037] The power mechanism is used to drive the screening cylinder 300 to rotate; the power mechanism includes a power motor 610 and a power ring 620; the power ring 620 is sleeved outside one of the plugging rings 500; the power ring 620 is fixedly connected to the corresponding plugging ring 500; the power ring 620 is a toothed ring; the power motor 610 is fixed on the base 100; the output shaft of the power motor 610 and the power ring 620 are in meshing transmission through gears.

[0038] The blockage clearing mechanism is arranged in the outer cavity 510 and above the screening cylinder 300, and is used to provide an impact force from the outer cavity 510 to the inside of the screening cylinder 300 on the large-particle materials stuck in the sieve holes of the screening cylinder 300 when the screening cylinder 300 rotates, so as to push the large-particle materials stuck in the sieve holes of the screening cylinder 300 into the screening cylinder 300.

[0039] The blockage clearing mechanism includes a brush plate 710 and a driving assembly; the brush plate 710 is arranged in the outer cavity 510 along the axis of the screening cylinder 300; the brush plate 710 is slidably installed on the inner wall of the outer cylinder 200 along the radial direction of the outer cylinder 200; an elastic component 740 is connected between the brush plate 710 and the outer cylinder 200; the elastic component 740 includes a telescopic rod; the telescopic rod is arranged between the outer cylinder 200 and the brush plate 710, the telescopic rod is arranged along the radial direction of the outer cylinder 200, one end is fixed on the outer cylinder 200, and the other end is fixed on the brush plate 710; a spring is sleeved on the telescopic rod; one end of the spring is fixed on the inner wall of the outer cylinder 200, and the other end is fixed on the brush plate 710.

[0040] A plurality of bristles are fixed on the side wall of the brush plate 710 close to the screening cylinder 300; the bristles are arranged along the radial direction of the screening cylinder 300; the bristles are elastic rod-shaped; the bristles are in contact with the outer side wall of the screening cylinder 300;

[0041] The driving component is used to periodically drive the brush plate 710 to drive the bristles to first move away from the screening cylinder 300, so that the elastic component 740 stores energy, and then release the force of the elastic component 740, driving the bristles to provide an impact force from the outer cavity 510 to the inside of the screening cylinder 300 on the large particle materials stuck in the screening holes of the screening cylinder 300. The driving component includes a driving convex 720 and a mating convex 730; a plurality of driving convexes 720 are circumferentially arranged around the mounting ring 400; the driving convex 720 is arranged between two sealing rings 500; one side wall of one end of the driving convex 720 is set as a force storage wall, the force storage wall is arc-shaped, and the other side wall is set as a force release wall; the force release wall is arranged along the radial direction of the screening cylinder 300; the mating convex 730 is fixed at both ends of the sieve plate; the lower end of the mating convex 730 is arc-shaped; the lower end of the mating convex 730 abuts against the force storage wall of the driving convex 720. The power mechanism drives the screening cylinder 300 and the mounting ring 400 to rotate. When the mating convex 730 slides along the force storage wall, the brush plate 710 drives the bristles to move away from the screening cylinder 300 and clean the outer side wall of the screening cylinder 300, cleaning the materials adhered to the outer side wall of the screening cylinder 300 to the lower end of the outer cavity 510, improving the recovery rate of the screened materials; when the sieve plate moves away from the screening cylinder 300, it compresses the elastic component 740 to store energy. When the mating convex 730 slides from the force storage wall to the force release wall, the elastic component 740 releases force, and the bristles corresponding to the screening holes of the screening cylinder 300 provide an impact force from the outer cavity 510 to the inside of the screening cylinder 300 on the large particle materials stuck in the screening holes of the screening cylinder 300, so as to push the large particle materials stuck in the screening holes of the screening cylinder 300 into the screening cylinder 300, and the rest of the bristles hit the outer side wall of the screening cylinder 300 to knock on the screening cylinder 300, assisting in screening and promoting the detachment of large particle materials from the screening holes at the same time.

[0042] Combined with the above embodiments, the working principle and process of the present utility model are as follows: When screening the washed sand, start the power motor 610 to drive the sealing ring 500 to rotate, the sealing ring 500 drives the mounting ring 400 to rotate, and the mounting ring 400 drives the screening cylinder 300 to rotate. At the same time, the worker adds the washed sand into the screening cylinder 300 from the feed port 310.

[0043] When the mating convex 730 slides along the force storage wall, the brush plate 710 drives the bristles to move away from the screening cylinder 300 and clean the outer side wall of the screening cylinder 300, cleaning the materials adhered to the outer side wall of the screening cylinder 300 to the lower end of the outer cavity 510, improving the recovery rate of the screened materials; when the sieve plate moves away from the screening cylinder 300, it compresses the spring to store energy. When the mating convex 730 slides from the force storage wall to the force release wall, the spring releases force, and the bristles corresponding to the screening holes of the screening cylinder 300 provide an impact force from the outer cavity 510 to the inside of the screening cylinder 300 on the large particle materials stuck in the screening holes of the screening cylinder 300, so as to push the large particle materials stuck in the screening holes of the screening cylinder 300 into the screening cylinder 300, and the rest of the bristles hit the outer side wall of the screening cylinder 300 to knock on the screening cylinder 300, assisting in screening and promoting the detachment of large particle materials from the screening holes at the same time.

[0044] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A gypsum mortar screening device, characterized in that: It includes a base, a power mechanism, and a clogging clearing mechanism; an outer cylinder is fixed on the base; the axis of the outer cylinder is arranged front and back; a screening cylinder is coaxially arranged inside the outer cylinder; a feed inlet is arranged at the front end of the screening cylinder, and a first discharge outlet is arranged at the rear end. Mounting rings are arranged at both ends of the screening cylinder; a blocking ring is coaxially fixed on the outer side wall of the mounting ring; the blocking ring is rotatably mounted at the front and rear ends of the outer cylinder; the blocking ring, the outer cylinder, and the screening cylinder enclose an outer cavity; a second discharge outlet is arranged at the lower end of the outer cavity. The power mechanism is used to drive the screening cylinder to rotate. The clogging clearing mechanism is arranged in the outer cavity and above the screening cylinder, and is used to provide an impact force from the outer cavity to the inside of the screening cylinder for the large-particle materials stuck in the screening holes of the screening cylinder when the screening cylinder rotates, so as to push the large-particle materials stuck in the screening holes of the screening cylinder into the screening cylinder.

2. The gypsum mortar screening device according to claim 1, wherein: The clogging clearing mechanism includes a brush plate and a driving assembly; the brush plate is arranged along the axis of the screening cylinder in the outer cavity; the brush plate is slidably mounted on the inner wall of the outer cylinder along the radial direction of the outer cylinder; an elastic component is connected between the brush plate and the outer cylinder. A plurality of bristles are fixed on the side wall of the brush plate close to the screening cylinder; the bristles are arranged along the radial direction of the screening cylinder; the bristles are elastic rod-shaped; the bristles are in contact with the outer side wall of the screening cylinder. The driving assembly is used to periodically drive the brush plate to drive the bristles to first move away from the screening cylinder, so that the elastic component stores energy, and then release the energy of the elastic component, and drive the bristles to provide an impact force from the outer cavity to the inside of the screening cylinder for the large-particle materials stuck in the screening holes of the screening cylinder.

3. A gypsum mortar screening device according to claim 2, characterized in that: The driving assembly includes a driving convex and a mating convex; a plurality of driving convexes are arranged circumferentially around the mounting ring; the driving convexes are arranged between the two blocking rings; one side wall of one end of the driving convex is set as a power storage wall, the power storage wall is arc-shaped, and the other side wall is set as a force release wall; the force release wall is arranged along the radial direction of the screening cylinder. The mating convex is fixed at both ends of the sieve plate; the lower end of the mating convex is arc-shaped; the lower end of the mating convex is in contact with the power storage wall of the driving convex.

4. A gypsum mortar screening device according to claim 3, characterized in that: The elastic component includes a telescopic rod; the telescopic rod is arranged between the outer cylinder and the brush plate, the telescopic rod is arranged along the radial direction of the outer cylinder, one end is fixed on the outer cylinder, and the other end is fixed on the brush plate; a spring is sleeved on the telescopic rod; one end of the spring is fixed on the inner wall of the outer cylinder, and the other end is fixed on the brush plate.

5. A gypsum mortar screening device according to claim 4, characterized in that: The power mechanism includes a power motor and a power ring; the power ring is sleeved outside one of the blocking rings; the power ring is fixedly connected to the corresponding blocking ring; the power ring is a toothed ring; the power motor is fixed on the base; the output shaft of the power motor is in meshing transmission with the power ring through a gear.

6. The gypsum mortar screening device according to claim 1, characterized in that: The base is inclined, and the front end of the screening cylinder is higher than the rear end.

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