Stone screening device with anti-blocking function

Abstract

The utility model relates to concrete processing technical field, concretely is a kind of gravel screening device with anti-blocking function, including feed hopper, the bottom end of the feed hopper is inserted in the middle part of the top of box, the inner wall of the box is equipped with screening mechanism, support column is welded with the just below of screening mechanism in the inner wall of the box, the tail end of the support column is welded with protective box, the inside of the protective box is clamped with thimble mechanism, the bottom end of the box is equipped with aggregate hopper, the bottom end of the aggregate hopper is equipped with discharge gate, the outer wall of the aggregate hopper is equipped with support frame. Improved screening device, the bottom end of the feed hopper is divided into the extension channel, can realize the uniform distribution of raw materials on screening mechanism, avoid raw materials to form accumulation or partial load, reduce the screen hole blockage due to local overload, thimble mechanism can automatically remove the gravel blocked on screen plate, prevent screen hole from being blocked, reduce the production interruption due to blockage, ensure the smooth of screen hole, improve the precision and efficiency of screening.

Description

Technical Field

[0001] This utility model relates to the field of concrete processing technology, specifically to a stone screening device with anti-clogging function. Background Technology

[0002] Concrete processing is a crucial step in the construction industry, involving the mixing and stirring of raw materials such as cement, sand, gravel, and water to form concrete. The purpose of concrete processing is to produce concrete that meets specific requirements for the construction and maintenance of building structures, roads, bridges, and other infrastructure. Many factors need to be considered in concrete processing, including the source of raw materials, concrete mix design, mixing and transportation methods, environmental conditions, and construction techniques, to ensure that the final concrete product meets the requirements of the engineering design and its intended use.

[0003] A stone screening device is a mechanical device used to screen stones of different sizes. It plays an important role in industries such as construction, road construction, and concrete processing. The main function of a screening device is to classify stones according to their particle size for subsequent use. There are various types of stone screening devices, including vibrating screens, drum screens, and flat screens, each with its unique characteristics and applicable scope. When selecting a stone screening device, it is necessary to comprehensively consider factors such as specific project requirements, the characteristics of the stones, and the processing capacity.

[0004] In the process of realizing this utility model, the inventors discovered the following problems with the prior art: 1. In the existing screening device, when the raw material is poured into the device, the raw material will be concentrated on the top of the screen plate, which can easily cause local overload and screen hole blockage; 2. In the existing screening device, when the screen plate is used to vibrate and screen the stone raw material, the stones with larger diameters may block the inside of the screen holes, thereby affecting the screening efficiency and easily causing equipment damage. Utility Model Content

[0005] The purpose of this utility model is to provide a stone screening device with anti-clogging function to solve the problems mentioned in the background art. In existing screening devices, when raw materials are poured into the device, they tend to concentrate at the top of the screen plate, easily causing local overload and screen hole blockage. Furthermore, in existing screening devices, when using the screen plate for vibratory screening of stone raw materials, larger diameter stones may clog the screen holes, affecting screening efficiency and potentially causing equipment damage. To achieve the above objective, this utility model provides the following technical solution: a stone screening device with anti-clogging function, including a feed hopper, the bottom end of which is inserted into the middle of the top of a housing. The inner wall of the housing is provided with a screening mechanism. A support column is welded to the inner wall of the housing directly below the screening mechanism. A protective box is welded to the tail end of the support column. A pin mechanism is engaged inside the protective box. A collection hopper is provided at the bottom of the housing, with a discharge port at the bottom end. A support frame is provided on the outer wall of the collection hopper.

[0006] More preferably, the bottom outlet of the feed hopper is provided with three expanding channels.

[0007] More preferably, the screening mechanism consists of a vibrating motor and a screen plate, wherein the outer wall of the screen plate is welded to the inner wall of the housing, and the vibrating motor is screwed to the left and right sides of the top of the screen plate.

[0008] More preferably, the ejector pin mechanism consists of a pin column, a hydraulic cylinder, and a perforated plate, wherein the pin column is located at the top of the perforated plate, the drive end of the hydraulic cylinder is inserted into the middle of the bottom of the perforated plate, and the hydraulic cylinder is engaged inside the protective box.

[0009] More preferably, the outer walls on the left and right sides of the sluice plate are provided with sliders, and the inner walls on the left and right sides of the box are provided with grooves, with the sliders and grooves slidingly connected through each other.

[0010] More preferably, the surface of the sieve plate is provided with a plurality of sieve holes, the diameter of which is larger than the maximum diameter of the needle column.

[0011] More preferably, the support column is arranged at an angle.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In this invention, the bottom outlet of the feed hopper is provided with three expanding channels. These channels guide the raw material in different directions, achieving a uniform distribution of the raw material on the screening mechanism. This helps prevent the raw material from accumulating or being unevenly loaded during the screening process, ensuring that the screening mechanism can perform screening work more efficiently. The uniform distribution of raw material also reduces dead zones during the screening process, improves the screening effect, and reduces incomplete screening caused by raw material accumulation, thereby improving the overall screening efficiency. At the same time, when the raw material is evenly distributed on the screening mechanism, it can reduce screen hole blockage caused by local overload, extend the service life of the screen plate, reduce the number of shutdowns for cleaning, and improve the operating efficiency of the equipment.

[0014] In this invention, when a stone gets stuck in the sieve hole on the sieve plate, the operator can activate the hydraulic cylinder, causing its drive end to extend upward and push the inserted perforated plate upward until the needle at the top of the perforated plate can pass through the sieve hole and push the stone blocking it outward. Stones that meet the specifications will then pass through the perforated plate and continue to fall downward, thus completing the unblocking operation of the sieve plate. During this process, the ejector mechanism can automatically remove the stones blocking the sieve plate, preventing the sieve holes from being blocked and reducing production interruptions caused by blockages. The automatic unblocking function of the ejector mechanism reduces wear and damage to the sieve plate, extends its service life, and reduces the cost of maintenance and replacement. At the same time, the automatic unblocking function of the ejector mechanism also ensures that the sieve holes are unobstructed, which helps to improve the screening accuracy and efficiency and reduce the content of large particles in the undersize material. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a side view sectional structural diagram of the present invention;

[0017] Figure 3 This is a frontal cross-sectional view of the present invention.

[0018] Figure 4 This is a schematic diagram of the ejector mechanism of this utility model.

[0019] In the diagram: 1. Feed hopper; 101. Diverting channel; 2. Box body; 201. Slide chute; 3. Screening mechanism; 301. Vibrating motor; 302. Screen plate; 4. Support column; 5. Protective box; 6. Pin mechanism; 601. Pin column; 602. Hydraulic cylinder; 603. Slot plate; 604. Sliding block; 7. Collection hopper; 8. Discharge port; 9. Support frame. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a stone screening device with anti-clogging function, including a feeding hopper 1, the bottom end of which is inserted into the middle of the top of a box 2, a screening mechanism 3 is provided on the inner wall of the box 2, a support column 4 is welded to the inner wall of the box 2 directly below the screening mechanism 3, a protective box 5 is welded to the tail end of the support column 4, a pin mechanism 6 is snapped into the inside of the protective box 5, a collecting hopper 7 is provided at the bottom of the box 2, a discharge port 8 is provided at the bottom of the collecting hopper 7, and a support frame 9 is provided on the outer wall of the collecting hopper 7.

[0022] In this embodiment, as Figure 1 and Figure 2 and Figure 3 As shown, the bottom outlet of the feed hopper 1 is provided with three expanding channels 101. It should be noted that when the operator feeds the raw material from the feed hopper 1 into the housing 2, the raw material will be guided to different positions on the top of the screening mechanism 3 along the three expanding channels 101 in different directions. During this period, the raw material is guided in different directions by the expanding channels 101, which can achieve uniform distribution of the raw material on the screening mechanism 3. This helps to avoid the accumulation or uneven loading of raw material during the screening process, ensuring that the screening mechanism 3 can perform screening work more efficiently. The uniform distribution of raw material can reduce dead zones in the screening process, improve the screening effect, and reduce incomplete screening caused by raw material accumulation, thereby improving the overall screening efficiency. At the same time, when the raw material is evenly distributed on the screening mechanism 3, it can reduce the clogging of the screen holes caused by local overload, extend the service life of the screen plate 302, reduce the number of shutdowns for cleaning, and improve the operating efficiency of the equipment.

[0023] In this embodiment, as Figure 4As shown, the screening mechanism 3 consists of a vibrating motor 301 and a screen plate 302. The outer wall of the screen plate 302 is welded to the inner wall of the housing 2, and the vibrating motor 301 is screwed to the left and right sides of the top of the screen plate 302. It should be noted that after the raw material is evenly distributed on the top of the screen plate 302 through the expansion channel 101 at the bottom of the feed hopper 1, the operator can start the vibrating motor 301, which will drive the screen plate 302 screwed to it to start vibrating. This will cause the raw material falling to the top to vibrate synchronously, and allow the stones that meet the specifications in the raw material to fall through the screen holes. During this process, the vibration... The vibrating motor 301 enables the screen plate 302 to vibrate, which helps the stones move quickly on the screen plate 302, increases the screening speed, and thus speeds up the entire screening process. At the same time, the vibrating motor 301 drives the screen plate 302 to perform vibrating screening. By adjusting the vibration frequency and amplitude, it can adapt to different screening needs. Compared with traditional screening methods, the vibration generated by the vibrating motor 301 is sufficient to move the stones, reducing the need for additional mechanical force. The energy consumption required for vibrating screening is also less, thereby reducing energy consumption and maintenance costs, and improving the reliability and production efficiency of the equipment.

[0024] In this embodiment, as Figure 4 As shown, the ejector mechanism 6 consists of a needle post 601, a hydraulic cylinder 602, and a sieve plate 603. The needle post 601 is located at the top of the sieve plate 603, and the drive end of the hydraulic cylinder 602 is inserted into the middle of the bottom of the sieve plate 603. The hydraulic cylinder 602 is also engaged inside the protective box 5. It should be noted that when a stone gets stuck in the sieve hole on the surface of the sieve plate 302, the operator can activate the hydraulic cylinder 602, causing its drive end to extend upward and push the sieve plate 603, which is inserted therein, upward until the needle post 601 at the top of the sieve plate 603 can pass through the sieve hole and push the stone blocking it outward. The stones that meet the specifications will pass through the sieve plate 603 and continue to fall downwards, thus completing the unblocking operation of the sieve plate 302. During this process, the ejector pin mechanism 6 can automatically remove the stones blocking the sieve plate 302, preventing the sieve holes from being blocked and reducing production interruptions caused by blockages. The automatic unblocking function of the ejector pin mechanism 6 reduces wear and damage to the sieve plate 302, extends the service life of the sieve plate 302, and thus reduces the cost of maintaining and replacing the sieve plate 302. At the same time, the automatic unblocking function of the ejector pin mechanism 6 also ensures that the sieve holes are unobstructed, which helps to improve the screening accuracy and efficiency and reduce the content of large particles in the undersize material.

[0025] In this embodiment, as Figure 3 and Figure 4As shown, sliders 604 are provided on the outer walls of the left and right sides of the perforated plate 603, and grooves 201 are provided on the inner walls of the left and right sides of the housing 2. The sliders 604 and the grooves 201 are slidably connected through each other. It should be noted that when the hydraulic cylinder 602 pushes the perforated plate 603 upward to move it, the sliders 604 on the left and right sides of the perforated plate 603 will also slide up and down synchronously along the inner wall of the grooves 201. During this period, the grooves 201 provide a fixed track for the sliders 604 to ensure that the perforated plate 604 moves under the drive of the hydraulic cylinder 602. When the sluice plate 603 moves upward, the slider 604 can slide smoothly up and down along the groove 201, thereby accurately positioning the sluice plate 603 and the needle column 601, ensuring that the needle column 601 can be correctly aligned with the sieve hole of the sieve plate 302, and the groove 201 ensures that the slider 604 remains horizontal during the up and down movement, preventing the sluice plate 603 from tilting, which helps to stabilize the movement of the sluice plate 603, ensuring that the movement of the sluice plate 603 is smooth and orderly when the ejector mechanism 6 is working, thereby avoiding equipment damage caused by vibration or unstable movement.

[0026] In this embodiment, as Figure 4 As shown, the surface of the sieve plate 302 is provided with a number of sieve holes, the diameter of which is larger than the maximum diameter of the needle column 601. It should be noted that in this utility model, the number of sieve holes on the surface of the sieve plate 302 corresponds to the position of the needle column 601 in the pin mechanism 6 and the number of holes is the same. At the same time, the diameter of the sieve holes is larger than the maximum diameter of the needle column 601. When the hydraulic cylinder 602 is activated to push the screen plate 603 upward, the needle column 601 can pass through the sieve holes smoothly, effectively pushing out the stones blocking the sieve holes without damaging the sieve plate 302. The smaller diameter needle column 601 can move more flexibly in the sieve holes, which helps to quickly find and clear the blocked stones. At the same time, since the diameter of the needle column 601 is smaller than that of the sieve hole, the size of the sieve hole will not be enlarged when the needle column 601 passes through the sieve hole, so that the sieve hole will not be further blocked by the passage of the needle column 601. This ensures that the screening mechanism 3 can work continuously and stably, improving the overall efficiency of concrete processing.

[0027] In this embodiment, as Figure 2 and Figure 3As shown, the support column 4 is set at an angle. It should be noted that the hydraulic cylinder 602 in the ejector mechanism 6 is snapped into the inside of the protective box 5, and the outer wall of the protective box 5 is welded to the inner wall of the box 2 through the support column 4. During the activation of the ejector mechanism 6, the angled support column 4 can provide additional support, enhance the stability of the hydraulic cylinder 602 and the protective box 5, and ensure that the drive end of the hydraulic cylinder 602 can stably push the drain plate 603 up and down during the unblocking process. At the same time, the angled setting of the support column 4 also helps to disperse the force acting on the protective box 5 and the box 2, avoid local stress concentration, reduce structural damage caused by excessive load, and reduce equipment wear caused by mechanical vibration or impact, thus extending the service life of the ejector mechanism 6.

[0028] The method of use and advantages of this utility model: This stone screening device with anti-clogging function operates as follows:

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the operator first feeds the raw material from the feed hopper 1 into the housing 2. During this process, the raw material is guided along the three expansion channels 101 in different directions to different positions on the top of the screening mechanism 3, thus distributing it evenly on the top of the screen plate 302. Then, the vibration motor 301 is started, causing the screen plate 302, which is screwed to it, to start vibrating. At the same time, the raw material falling to the top of it vibrates synchronously on the top of the screen plate 302, causing the stones in the raw material to move quickly on the screen plate 302. At this time, stones that meet the specifications will fall through the screen holes, while some larger diameter stones may block the screen holes. Inside, at the same time, the operator can activate the hydraulic cylinder 602, causing its drive end to extend upward and push the inserted sieve plate 603 upward. During this period, the sliders 604 on the left and right sides of the sieve plate 603 will also slide up and down synchronously along the inner wall of the chute 201, ensuring that the needle column 601 on the top of the sieve plate 603 can pass through the screen hole accurately and push out the stones blocked inside. At this time, the stones that meet the specifications will still pass through the sieve plate 603 and continue to fall downward, and fall into the collection hopper 7, and then be discharged outward through the discharge port 8, thus completing the vibratory screening of the stones.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stone screening device with anti-clogging function, comprising a feed hopper (1), characterized in that: The bottom end of the feed hopper (1) is inserted into the middle of the top of the box body (2). The inner wall of the box body (2) is provided with a screening mechanism (3). The inner wall of the box body (2) is welded with a support column (4) directly below the screening mechanism (3). The tail end of the support column (4) is welded with a protective box (5). The inside of the protective box (5) is fitted with a pin mechanism (6). The bottom end of the box body (2) is provided with a collection hopper (7). The bottom end of the collection hopper (7) is provided with a discharge port (8). The outer wall of the collection hopper (7) is provided with a support frame (9).

2. The stone screening device with anti-clogging function according to claim 1, characterized in that: The bottom outlet of the feed hopper (1) is provided with three expanding channels (101).

3. The stone screening device with anti-clogging function according to claim 1, characterized in that: The screening mechanism (3) consists of a vibration motor (301) and a sieve plate (302), wherein the outer wall of the sieve plate (302) is welded to the inner wall of the box (2), and the vibration motor (301) is screwed to the left and right sides of the top of the sieve plate (302).

4. A stone screening device with anti-clogging function according to claim 1, characterized in that: The pin mechanism (6) consists of a pin column (601), a hydraulic cylinder (602) and a sprue plate (603). The pin column (601) is located at the top of the sprue plate (603), the drive end of the hydraulic cylinder (602) is inserted into the middle of the bottom of the sprue plate (603), and the hydraulic cylinder (602) is snapped into the inside of the protective box (5).

5. A stone screening device with anti-clogging function according to claim 4, characterized in that: The outer walls of the left and right sides of the sluice plate (603) are provided with sliders (604), and the inner walls of the left and right sides of the box (2) are provided with grooves (201). The sliders (604) and the grooves (201) are slidably connected through each other.

6. A stone screening device with anti-clogging function according to claim 3, characterized in that: The surface of the sieve plate (302) is provided with a number of sieve holes, the diameter of which is larger than the maximum diameter of the needle column (601).

7. A stone screening device with anti-clogging function according to claim 1, characterized in that: The support column (4) is set at an angle.

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