A screening device for putty powder production

Abstract

The utility model mainly relates to the technical field of screening device, concretely relates to a screening device for putty powder production, including base, the top of base is set up in the inclination, and its above parallelly arranged has screening box, screening box is connected with reciprocating drive mechanism, and can reciprocate along the inclination direction of base top under its drive; The top of screening box is fixedly connected with feeding hopper in the vertical direction near the upper end position, the screen cloth and the guide plate are sequentially arranged in screening box from top to bottom along its length direction, the screen cloth and the inclined lower end of guide plate respectively abut with the first discharge gate and the second discharge gate that the corresponding position of screening box inner wall set up, the bottom side of screen cloth is provided with the cleaning scraper, the cleaning scraper is connected with the guide sliding sleeve, the guide sliding sleeve and the guide rod fixed in the inside of screening box slide fit, the extension direction of guide rod is identical with the arrangement direction of screen cloth, utilizes reciprocating motion inertia, and the cleaning scraper will continuously scrape and brush the screen cloth bottom surface and carry out self-cleaning.

Description

Technical Field

[0001] This utility model mainly relates to the field of screening device technology, specifically to a screening device for putty powder production. Background Technology

[0002] In the field of building decoration, putty powder is an indispensable basic material, and its quality directly affects the final effect of wall treatment. To ensure the fineness and uniformity of the putty powder and prevent lumps or impurities from affecting construction, screening is a crucial step in its production process.

[0003] Currently, the most commonly used screening devices in the industry are vibrating screens. In practical applications, a significant drawback of this traditional vibrating screening device has been found: putty powder has a fine texture and a certain degree of stickiness. During continuous vibration screening, fine powder easily embeds and adheres to the mesh of the screen, causing clogging. The effective screening area of ​​the screen gradually decreases with increasing working time, leading to a sharp decline in screening efficiency and reduced production capacity. At this point, the machine must be stopped and the screen cleaned. Existing cleaning methods usually require operators to remove the screen from the equipment and manually brush or beat it. This process is not only time-consuming and labor-intensive but also interrupts continuous production, severely impacting overall work efficiency and equipment utilization. Therefore, how to achieve self-cleaning of the screen and prevent clogging has become a pressing technical problem to be solved in this field. Utility Model Content

[0004] 1. The technical problem to be solved by the utility model: This invention provides a screening device for putty powder production to solve the technical problems existing in the background art.

[0005] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is as follows: a screening device for putty powder production, including a base, the top of which is inclined, and a screening box is arranged in parallel on it. The screening box is connected to a reciprocating drive mechanism and can reciprocate along the inclined direction of the top of the base under its drive. The top of the screening box is vertically connected to a feed hopper near the upper end. Inside the screening box, a screen and a guide plate are arranged sequentially from top to bottom along its length. The inclined lower ends of the screen and the guide plate abut against the first and second discharge ports opened at corresponding positions on the inner wall of the screening box, respectively. The bottom side of the screen is provided with a cleaning scraper, which is connected to a guide sleeve. The guide sleeve is slidably engaged with a guide rod fixed inside the screening box. The extension direction of the guide rod is consistent with the arrangement direction of the screen.

[0006] Furthermore, a guide plate is provided below the first discharge port; Near its lower end, the top of the base is provided with a first collection trough and a second collection trough in sequence along the inclined direction.

[0007] Furthermore, the reciprocating drive mechanism includes a drive slider fixedly installed at the bottom of the screening box. The drive slider is slidably engaged with a guide rail opened along the inclined direction of the top of the base. The two sides of the screening box are respectively connected to drive connecting rods through hinge shafts. The other ends of the two drive connecting rods are respectively eccentrically hinged to an eccentric wheel. The two eccentric wheels are fixedly installed on the same transmission shaft. The transmission shaft is rotatably supported on the base through a bearing seat. The transmission shaft and the drive motor fixedly installed on the base are connected by a synchronous belt transmission mechanism.

[0008] Furthermore, two buffer limit blocks are sleeved and fixed on the guide rod, and the two buffer limit blocks are respectively located at both ends of the guide rod and correspond to the end of the stroke of the guide sleeve.

[0009] Furthermore, a counterweight is fixedly installed at the bottom of the cleaning scraper.

[0010] 3. Beneficial effects: Compared with existing technologies, the technical solution provided by this utility model has the following advantages: The putty powder to be screened enters the screening box from the feed hopper and falls onto the screen surface. The reciprocating drive mechanism drives the screening box to vibrate reciprocally in an inclined direction, allowing putty powder of the qualified particle size to pass through the screen and fall onto the guide plate. Unqualified materials slide down the screen surface and are finally discharged through the first and second discharge ports respectively. Simultaneously, utilizing the inertia of the reciprocating motion, the cleaning scraper slides along the guide rod through the guide sleeve, continuously scraping the bottom surface of the screen to prevent clogging of the mesh. This cleaning process requires no additional drive mechanism, which helps reduce equipment costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the reciprocating drive mechanism of this utility model; Figure 3 This is a cross-sectional view of the screening box of this utility model; Figure 4 This is a schematic diagram of the exploded structure of the screen and cleaning scraper of this utility model.

[0012] Figure label: 1. Base; 101. First collection tank; 102. Second collection tank; 2. Screening box; 201. First discharge port; 202. Second discharge port; 3. Reciprocating drive mechanism; 301. Drive slider; 302. Guide rail; 303. Drive connecting rod; 304. Eccentric wheel; 305. Transmission shaft; 306. Bearing seat; 307. Drive motor; 308. Synchronous belt drive mechanism; 4. Feed hopper; 5. Screen; 6. Guide plate; 7. Cleaning scraper; 8. Guide sleeve; 9. Guide rod; 10. Guide plate; 11. Buffer limit block; 12. Counterweight block. Detailed Implementation

[0013] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0014] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0017] See attached document Figure 1-4 A screening device for putty powder production includes a base 1, the top of which is inclined, and a screening box 2 is arranged parallel to it. The screening box 2 is connected to a reciprocating drive mechanism 3, which drives it to reciprocate along the inclined direction of the top of the base 1. A feed hopper 4 is vertically fixedly connected to the top of the screening box 2 near the upper end. A screen 5 and a guide plate 6 are arranged sequentially from top to bottom along the length of the screening box 2. The inclined lower ends of the screen 5 and the guide plate 6 respectively abut against the first discharge port 201 and the second discharge port 202 opened at corresponding positions on the inner wall of the screening box 2. A cleaning scraper 7 is provided on the bottom side of the screen 5. The cleaning scraper 7 is connected to a guide sleeve 8. The guide sleeve 8 is slidably engaged with a guide rod 9 fixed inside the screening box 2. The extension direction of the guide rod 9 is consistent with the arrangement direction of the screen 5.

[0018] In this embodiment, during operation, the putty powder to be screened enters the screening box 2 through the feed hopper 4 and falls onto the upper surface of the screen 5. The reciprocating drive mechanism 3 drives the screening box 2 to reciprocate in the inclined direction, causing the screen 5 to vibrate and screen the putty powder. Putty powder with qualified particle size passes through the screen 5 and falls onto the guide plate 6, while unqualified material slides down the surface of the screen 5 and is finally discharged through the first discharge port 201 and the second discharge port 202 respectively. At the same time, under the inertia of the reciprocating motion, the cleaning scraper 7 slides along the guide rod 9 through the guide sleeve 8 to continuously scrape and clean the bottom surface of the screen 5, preventing the mesh from clogging. This cleaning process does not require an additional drive mechanism, which helps to reduce equipment costs.

[0019] A guide plate 10 is provided below the first discharge port 201; a first collection trough 101 and a second collection trough 102 are sequentially opened at the top of the base 1 near its lower end along the inclined direction.

[0020] In this embodiment, the qualified material discharged from the second outlet 202 falls into the first collection tank 101 and is collected, while the sieve residue discharged from the first outlet 201 is guided by the guide plate 10 to the second collection tank 102 for collection, thereby achieving effective separation and collection of qualified products and impurities.

[0021] The reciprocating drive mechanism 3 includes a drive slider 301 fixedly installed at the bottom of the screening box 2. The drive slider 301 is slidably engaged with a guide rail 302 opened along the inclined direction of the top of the base 1. The two sides of the screening box 2 are respectively connected to drive connecting rods 303 through hinge shafts. The other ends of the two drive connecting rods 303 are respectively eccentrically hinged to an eccentric wheel 304. The two eccentric wheels 304 are fixedly installed on the same transmission shaft 305. The transmission shaft 305 is rotatably supported on the base 1 through a bearing seat 306. The transmission shaft 305 and the drive motor 307 fixedly installed on the base 1 are connected by a synchronous belt transmission mechanism 308.

[0022] In this embodiment, the drive motor 307 starts and drives the transmission shaft 305 to rotate via the synchronous belt transmission mechanism 308, thereby driving the two eccentric wheels 304 to rotate synchronously. The two sets of drive connecting rods 303 pull the screening box 2, causing the drive slider 301 to slide back and forth along the guide rail 302, thereby realizing the reciprocating motion of the screening box 2 along the inclined direction of the top of the base 1.

[0023] In the above embodiments, the synchronous belt drive mechanism 308 is common knowledge in the art and will not be described in detail here.

[0024] Two buffer limit blocks 11 are fitted and fixed on the guide rod 9. The two buffer limit blocks 11 are located at both ends of the guide rod 9 and correspond to the end of the stroke of the guide sleeve 8.

[0025] In this embodiment, when the guide sleeve 8 reciprocates to the end of its stroke, it will come into contact with the buffer limit block 11, thereby playing a buffering and limiting role, effectively reducing impact noise and preventing structural damage.

[0026] A counterweight 12 is fixedly installed at the bottom of the cleaning scraper 7.

[0027] In this embodiment, the counterweight 12 is used to increase the overall mass of the cleaning scraper 7, which can increase the inertia of the cleaning scraper 7 when the screen box reciprocates, so that it maintains a more sufficient and stable contact force with the bottom surface of the screen 5, thereby improving the cleaning effect.

[0028] The above embodiments only illustrate a certain implementation of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent should be determined by the appended claims.

[0029] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art.

Claims

1. A screening device for putty powder production, characterized in that: Includes a base (1), the top of which is inclined, and a screening box (2) is arranged in parallel on it. The screening box (2) is connected to a reciprocating drive mechanism (3), and under its drive, it can reciprocate along the inclined direction of the top of the base (1). The top of the screening box (2) is vertically connected to the feed hopper (4) near the upper end. Inside the screening box (2), a screen (5) and a guide plate (6) are arranged sequentially from top to bottom along its length. The inclined lower ends of the screen (5) and the guide plate (6) respectively abut against the first discharge port (201) and the second discharge port (202) opened at corresponding positions on the inner wall of the screening box (2). A cleaning scraper (7) is provided on the bottom side of the screen (5). The cleaning scraper (7) is connected to a guide sleeve (8). The guide sleeve (8) is slidably engaged with a guide rod (9) fixed inside the screening box (2). The extension direction of the guide rod (9) is consistent with the arrangement direction of the screen (5).

2. The screening device for putty powder production according to claim 1, characterized in that: A guide plate (10) is provided below the first discharge port (201); The base (1) has a first collection groove (101) and a second collection groove (102) sequentially opened at the top near its lower end along the inclined direction.

3. The screening device for putty powder production according to claim 1, characterized in that: The reciprocating drive mechanism (3) includes a drive slider (301) fixedly installed at the bottom of the screening box (2). The drive slider (301) is slidably engaged with a guide rail (302) opened along the inclined direction of the top of the base (1). The two sides of the screening box (2) are respectively connected by a drive link (303) through a hinge shaft. The other end of the two drive links (303) is respectively eccentrically hinged to an eccentric wheel (304). The two eccentric wheels (304) are fixedly installed on the same transmission shaft (305). The transmission shaft (305) is rotatably supported on the base (1) through a bearing seat (306). The transmission shaft (305) is connected to the drive motor (307) fixedly installed on the base (1) through a synchronous belt transmission mechanism (308).

4. A screening device for putty powder production according to claim 1, characterized in that: Two buffer limit blocks (11) are sleeved and fixed on the guide rod (9). The two buffer limit blocks (11) are located at both ends of the guide rod (9) and correspond to the end of the stroke of the guide sleeve (8).

5. A screening device for putty powder production according to claim 1, characterized in that: A counterweight (12) is fixedly installed at the bottom of the cleaning scraper (7).

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