Classified weighing device capable of being used for powder with different particle sizes
By combining a screening mechanism and a weighing device, the automated classification and weighing of powders of different particle sizes is achieved, solving the problem of uneven powder mixing and improving the quality stability of concrete.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAOMING HAOHAN BUILDING MATERIALS CO LTD
- Filing Date
- 2025-02-11
- Publication Date
- 2026-05-01
AI Technical Summary
Existing powder weighing devices cannot effectively classify and weigh powders of different particle sizes, resulting in poor powder flowability, uneven mixing, and affecting the strength of subsequent concrete.
A classification and weighing system including a screening mechanism and a weighing device was designed. The particle size separation of powder is achieved through the screen plate and vibrating motor in the screening box, and the automated weighing and feeding control is achieved by combining solenoid valves and PLC controller.
It enables effective classification and weighing of powders with different particle sizes, ensuring uniform mixing and improving the quality stability of concrete.
Smart Images
Figure CN224181298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weighing device technology, and more specifically, to a classification weighing device that can be used for powders of different particle sizes. Background Technology
[0002] Artificial sand making involves processing mountain rocks and river pebbles dredged from riverbeds into sand suitable for construction using an impact crusher (also known as a sand making machine). The artificial sand making machine, also called a vertical impact crusher, is widely used in various industries such as ores, cement, refractory materials, bauxite clinker, corundum, glass raw materials, manufactured building sand, stone materials, and various metallurgical slags. The main process for processing mountain rocks and river pebbles into sand suitable for construction includes sand making, sand particle and powder separation, weighing the sand particles or powder according to product requirements, and mixing the materials using a dry mortar mixer with a flying knife device.
[0003] Based on the above, the inventors have discovered the following problems: In the current sand making process, after the sand particles and powder are separated, there are inconsistent particle sizes inside the powder. The current powder weighing device is not convenient for classifying and weighing powder with different particle sizes. The inconsistent particle size inside the powder can easily make the powder flowability worse, resulting in uneven mixing, which will also have an adverse effect on the strength of the subsequent concrete.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a classification and weighing device that can be used for powders of different particle sizes, in order to achieve a more practical purpose. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a classification and weighing device that can be used for powders of different particle sizes, specifically achieved through the following technical solution:
[0006] A sorting and weighing device for powders of different particle sizes includes a main body and a screening mechanism. The main body includes a working box, inside which a support plate is installed. A pair of elongated grooves are formed on the support plate, and each of the pair of elongated grooves is connected to a discharge pipe. A solenoid valve is fitted on the outside of each pair of discharge pipes, and a storage tank is installed at the upper end of each pair of discharge pipes. A connecting block is installed between the pair of storage tanks, and the bottom ends of the pair of storage tanks are in contact with the upper end of the support plate. The screening mechanism includes a screening box, which is located at the upper end of the working box. A feed inlet is installed at the upper end of the screening box. An installation frame is installed inside the screening box, and a horizontal plate is installed at the bottom end of the installation frame. A pair of vertical rods are movably inserted inside the horizontal plate, and a first screening cover is installed between the pair of vertical rods. A second screening cover is installed at the upper end of the first screening cover, and screen plates are installed inside both the first and second screening covers.
[0007] Furthermore, a first discharge pipe and a second discharge pipe are respectively installed on the outer side of the first screening cover and the second screening cover. The first discharge pipe and the second discharge pipe are located on the same axis as a pair of storage tanks, and both the outer side of the first discharge pipe and the second discharge pipe are provided with openings.
[0008] The beneficial effect of adopting the above-mentioned further solution is that by setting an opening on the outer side of the first discharge pipe near the first screening hood, and similarly setting an opening on the outer side of the second discharge pipe near the second screening hood, with the openings located at the upper end of the bottom of the inclined screen plate, it is convenient for the material on the screen plate inside the first and second screening hoods to enter the interior of the first and second discharge pipes respectively through the openings. At the same time, the first and second discharge pipes and their corresponding storage tanks are located on the same axis, which facilitates the material to enter the interior of the storage tank through the first and second discharge pipes.
[0009] Furthermore, a vibration motor is installed at the bottom of the first screening cover, and a second spring is movably sleeved on the outside of a pair of vertical rods. The two ends of the second spring are fixedly connected to the bottom of the first screening cover and the upper end of the horizontal plate, respectively.
[0010] The beneficial effect of adopting the above-mentioned further solution is that, through the combined use of the vibrating motor and the second spring, when the vibrating motor is started, it is convenient for the first screening hood to vibrate. At the same time, during the vibration of the first screening hood, the vertical rod installed at its bottom end will pass back and forth through the horizontal plate during the continuous vibration.
[0011] Furthermore, a pair of telescopic rods are installed on both sides of the bottom of the work box, a weighing plate is installed between the pair of telescopic rods, a weighing sensor is installed at the bottom of the weighing plate, and a material box is installed at the top of the weighing plate.
[0012] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a material box and having the material box and its corresponding storage bucket located on the same axis, when the material inside the storage bucket falls into the material box, the weighing plate is squeezed by the gravity of the material inside the material box, causing the telescopic rod to contract, and at the same time, it squeezes the weighing sensor.
[0013] Furthermore, a first spring is movably sleeved on the outside of the pair of telescopic rods, and the two ends of the first spring are fixedly connected to the bottom end of the weighing plate and the inner wall of the working box, respectively.
[0014] The beneficial effect of adopting the above-mentioned further solution is that by setting a first spring on the outside of the telescopic rod, when the weighing plate is no longer subjected to the gravity of the material inside the hopper, it is easy for the moving end of the weighing plate and the telescopic rod to reset under the elastic force of the first spring.
[0015] Furthermore, a pair of PLC controllers are installed on the outer side of the work box, and the PLC controllers are electrically connected to the solenoid valve and the weighing sensor respectively through wires.
[0016] The beneficial effect of adopting the above-mentioned further solution is that by connecting the solenoid valve and the weighing sensor to the PLC controller, which includes a display screen and a digital keypad, the user can first set the weighing weight through the digital keypad on the PLC controller, and then control the solenoid valve to work and feed the material. When the set weight is reached, the weighing sensor sends a signal to the PLC controller, and the PLC controller sends a signal to the solenoid valve to close the solenoid valve and prevent the storage tank from continuing to feed the material.
[0017] Furthermore, a first door is hinged to the inside of the front of the work box, and a second door is hinged to the inside of both sides of the work box.
[0018] The beneficial effect of adopting the above-mentioned further solution is that by setting a first box door, it is convenient to open the first box door to take out a pair of storage buckets, and by setting a second box door, it is convenient to open the second box door to take out and put in the material box.
[0019] The beneficial effects of this utility model are as follows: This utility model provides a classification and weighing device for powders of different particle sizes through the above design. This device, by setting support plates and long grooves on a pair of support plates, aligns the discharge pipes at the bottom of a pair of storage tanks with the long grooves, pushing the storage tanks into the working box until the outer side of the discharge pipe abuts against the inner wall of the long groove. A solenoid valve is installed outside the discharge pipe; opening and closing the solenoid valve allows for the discharge and stopping of the storage tanks. An inlet is provided at the top of the screening box, facilitating the placement of powder into the second screening hood for classification according to different particle sizes. Screen plates are installed inside the first and second screening hoods. Because the screen plates are installed at an angle, and the mesh size of the screen plate inside the first screening hood is smaller than... The mesh of the screen plate inside the second screening hood, through the cooperation of a vibrating motor and a second spring, facilitates the vibration of both the first and second screening hoods. This allows small-diameter powder to pass through the screen plate inside the second screening hood and enter the first screening hood, where it resides on the screen plate installed inside. Meanwhile, large-diameter powder remains on the screen plate installed inside the second screening hood. Simultaneously, the openings on one side of the first and second discharge pipes are located above the inclined screen plate. Thus, during continuous vibration, the large-diameter powder on the screen plate inside the second screening hood and the small-diameter powder on the screen plate inside the first screening hood can respectively enter the storage tank through the second and first discharge pipes, completing the classification of powders of different diameters. When the classified powders in the pair of storage tanks enter the material bin, the weighing plate is compressed by the gravity of the material inside the bin, causing the telescopic rod to contract, while simultaneously compressing the weighing sensor. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 A three-dimensional structural diagram of a classification and weighing device for powders of different particle sizes provided by this utility model. Figure 1 ;
[0022] Figure 2 A three-dimensional structural diagram of a classification and weighing device for powders of different particle sizes provided by this utility model. Figure 2 ;
[0023] Figure 3A three-dimensional unfolded structural diagram of a support plate and storage bucket for a classification and weighing device for powders of different particle sizes provided by this utility model;
[0024] Figure 4 An exploded three-dimensional structural diagram of a screening box for a classification and weighing device for powders of different particle sizes provided by this utility model;
[0025] Figure 5 This is a partial front cross-sectional view of the working box of a sorting and weighing device for powders of different particle sizes provided by this utility model.
[0026] In the diagram: 100, Main body; 1001, Working box; 1002, Support plate; 1003, Discharge pipe; 1004, Storage tank; 1005, Connecting block; 1006, Telescopic rod; 1007, First spring; 1008, Weighing plate; 1009, Weighing sensor; 1010, Material box; 1011, PLC controller; 1012, First box door; 1013, Second box door; 200, Screening mechanism; 2001, Screening box; 2002, Feed inlet; 2003, Mounting frame; 2004, Horizontal plate; 2005, Vertical rod; 2006, Second spring; 2007, First screening cover; 2008, Second screening cover; 2009, First discharge pipe; 2010, Second discharge pipe; 2011, Screen plate; 2012, Vibration motor. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0029] Example 1
[0030] This utility model provides the following technical solutions: such as Figures 1-5As shown, a sorting and weighing device for powders of different particle sizes includes a main body 100 and a screening mechanism 200. The main body 100 includes a working box 1001, inside which a support plate 1002 is installed. A pair of elongated slots are formed on the support plate 1002, and each of the pair of elongated slots is connected to a discharge pipe 1003. A solenoid valve is fitted on the outside of each pair of discharge pipes 1003, and a storage tank 1004 is installed at the upper end of each pair of discharge pipes 1003. A connecting block 1005 is installed between the pair of storage tanks 1004. The bottom end of the storage bin 1004 is attached to the upper end of the support plate 1002. The screening mechanism 200 includes a screening box 2001, which is located at the upper end of the working box 1001. A feed inlet 2002 is installed at the upper end of the screening box 2001. A mounting frame 2003 is installed inside the screening box 2001. A horizontal plate 2004 is installed at the bottom end of the mounting frame 2003. A pair of vertical rods 2005 are movably inserted inside the horizontal plate 2004. A first screening cover 2007 is installed between the pair of vertical rods 2005. The first screening cover 2007... A second screening hood 2008 is installed at the upper end. Screen plates 2011 are installed inside both the first screening hood 2007 and the second screening hood 2008. A solenoid valve is installed outside the discharge pipe 1003; opening and closing the solenoid valve allows for the discharge and stopping of material from the storage tank 1004. An inlet 2002 facilitates the placement of powder into the second screening hood 2008 for classification according to different particle sizes. Screens are installed inside the first screening hood 2007 and the second screening hood 2008. Since a pair of screen plates 2011 are installed at an angle, and the mesh size of the screen plate 2011 inside the first screening hood 2007 is smaller than that inside the screen plate 2011 inside the second screening hood 2008, when the first screening hood 2007 and the second screening hood 2008 vibrate, it is convenient for small-diameter powder to pass through the screen plate 2011 inside the second screening hood 2008 and enter the first screening hood 2007 and be located on the screen plate 2011 installed inside it. At this time, large-diameter powder remains on the screen plate 2011 installed inside the second screening hood 2008.
[0031] Example 2
[0032] Reference Figures 1-5As shown, a first discharge pipe 2009 and a second discharge pipe 2010 are respectively installed on the outer side of the first screening hood 2007 and the second screening hood 2008. The first discharge pipe 2009 and the second discharge pipe 2010 are located on the same axis as a pair of storage tanks 1004, and both the first discharge pipe 2009 and the second discharge pipe 2010 have openings on their outer sides. A vibration motor 2012 is installed at the bottom of the first screening hood 2007. A second spring 2006 is movably sleeved on the outside of a pair of vertical rods 2005. The two ends of the second spring 2006 are fixedly connected to the bottom of the first screening hood 2007 and the upper end of the horizontal plate 2004, respectively. An opening is provided on the outer side of the first discharge pipe 2009 near the first screening hood 2007, and an opening is also provided on the outer side of the second discharge pipe 2010 near the second screening hood 2008. The opening is located at the top of the bottom of the inclined screen plate 2011, which facilitates the material on the screen plate 2011 inside the first screening cover 2007 and the second screening cover 2008 to enter the first discharge pipe 2009 and the second discharge pipe 2010 respectively through the opening. At the same time, the first discharge pipe 2009 and the second discharge pipe 2010 and their corresponding storage tank 1004 are located on the same axis, which facilitates the material to enter the storage tank 1004 through the first discharge pipe 2009 and the second discharge pipe 2010 to achieve classified storage. With the cooperation of the vibration motor 2012 and the second spring 2006, when the vibration motor 2012 is started, the first screening cover 2007 vibrates. At the same time, during the vibration of the first screening cover 2007, the vertical rod 2005 installed at its bottom end will pass back and forth through the horizontal plate 2004 during continuous vibration.
[0033] Example 3
[0034] Reference Figures 1-5As shown, a pair of telescopic rods 1006 are installed on both sides of the bottom of the working box 1001. A weighing plate 1008 is installed between the pair of telescopic rods 1006. A weighing sensor 1009 is installed at the bottom of the weighing plate 1008, and a material box 1010 is installed at the top of the weighing plate 1008. A first spring 1007 is movably sleeved on the outside of the pair of telescopic rods 1006. The two ends of the first spring 1007 are fixedly connected to the bottom of the weighing plate 1008 and the inner wall of the working box 1001, respectively. A pair of PLC controllers 1011 are installed on one side of the outside of the working box 1001. The PLC controllers 1011 are electrically connected to the solenoid valve and the weighing sensor 1009 through wires. A first box door 1012 is hinged to the inside of the front of the working box 1001, and a second box door 1013 is hinged to the inside of both sides of the working box 1001. By setting up the material box 1010, when the material inside the storage tank 1004 is... After the material falls into the material bin 1010, the weighing plate 1008 is compressed by the gravity of the material inside the material bin 1010, causing the telescopic rod 1006 to contract. At the same time, it compresses the weighing sensor 1009. By setting a first spring 1007 on the outside of the telescopic rod 1006, when the weighing plate 1008 is no longer subjected to the gravity of the material inside the material bin 1010, the moving ends of the weighing plate 1008 and the telescopic rod 1006 can be reset under the elastic force of the first spring 1007. By connecting the solenoid valve and the weighing sensor 1009 to the PLC controller 1011, the user can first set the weighing weight through the digital keypad on the PLC controller 1011, and then control the solenoid valve to work and discharge the material. When the set weight is reached, the weighing sensor 1009 sends a signal to the PLC controller 1011, and the PLC controller 1011 sends a signal to the solenoid valve to close the solenoid valve and prevent further material discharge.
[0035] Specifically, the working principle of this sorting and weighing device for powders of different particle sizes is as follows: First, open the first door 1012. Align the discharge pipes 1003 at the bottom of the pair of storage bins 1004 with the long trough. Then, push the pair of storage bins 1004 into the working box 1001 until the outer side of the discharge pipe 1003 abuts against the inner wall of the long trough. Open the second door 1013 and place the material box 1010 on the weighing plate 1008. Then, place the powder into the second screening hood 20 through the feed inlet 2002. The internal preparation of screen 2008 involves classifying the powder according to its different particle sizes. By starting the vibration motor 2012, the first screening hood 2007 and the second screening hood 2008 vibrate. Simultaneously, during the vibration of the first screening hood 2007, the vertical rod 2005 installed at its bottom repeatedly passes through the horizontal plate 2004, facilitating the passage of smaller particle sizes through the screen plate 2011 inside the second screening hood 2008 and into the first screening hood 2007, where it rests on the screen plate 2011. At this point, larger particle sizes remain... The screen plate 2011 installed inside the second screening hood 2008 facilitates the separation of large-diameter powder from the screen plate 2011 inside the second screening hood 2008 and small-diameter powder from the screen plate 2011 inside the first screening hood 2007 into the storage tank 1004 via the second discharge pipe 2010 and the first discharge pipe 2009, respectively, thus completing the separation of powders of different particle sizes. After the separated powders in the pair of storage tanks 1004 enter the material bin 1010, the user first controls the PLC controller 1011. The digital keypad component on the device is used to set the weighing weight, and then the solenoid valve is controlled to operate and discharge the material. When the material inside the storage tank 1004 falls into the material box 1010, the weighing plate 1008 is subjected to the gravity of the material inside the material box 1010 and squeezes the telescopic rod 1006 to shrink it. At the same time, it squeezes the weighing sensor 1009. When the set weight is reached, the weighing sensor 1009 sends a signal to the PLC controller 1011. The PLC controller 1011 sends a signal to the solenoid valve to close the solenoid valve and prevent further material discharge.
[0036] It should be noted that the specific model and specifications of the weighing sensor 1009, PLC controller 1011 and vibration motor 2012 of a classification and weighing device that can be used for powders of different particle sizes need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.
[0037] A sorting and weighing device for powders of different particle sizes is available. The power supply and operating principle of the weighing sensor 1009, PLC controller 1011 and vibration motor 2012 are clear to those skilled in the art and will not be described in detail here.
[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A sorting and weighing device applicable to powders of different particle sizes, characterized in that, The system includes a main body (100) and a screening mechanism (200). The main body (100) includes a working box (1001), inside which a support plate (1002) is installed. A pair of long slots are formed on the support plate (1002), and each of the long slots is connected to a discharge pipe (1003). A solenoid valve is fitted around each of the discharge pipes (1003), and a storage tank (1004) is installed at the upper end of each discharge pipe (1003). A connecting block (1005) is installed between the two storage tanks (1004), and the bottom ends of the two storage tanks (1004) are in contact with the upper ends of the support plate (1002). The screening mechanism (200) includes a screening box (2... 001), the screening box (2001) is located at the upper end of the working box (1001), and the upper end of the screening box (2001) is equipped with a feed inlet (2002). The screening box (2001) is equipped with a mounting frame (2003), and the bottom end of the mounting frame (2003) is equipped with a horizontal plate (2004). A pair of vertical rods (2005) are movably inserted inside the horizontal plate (2004). A first screening cover (2007) is installed between the pair of vertical rods (2005). A second screening cover (2008) is installed at the upper end of the first screening cover (2007). Screen plates (2011) are installed inside both the first screening cover (2007) and the second screening cover (2008).
2. The sorting and weighing device for powders of different particle sizes according to claim 1, characterized in that, The first screening hood (2007) and the second screening hood (2008) are respectively equipped with a first discharge pipe (2009) and a second discharge pipe (2010) on their outer sides. The first discharge pipe (2009) and the second discharge pipe (2010) are respectively located on the same axis as a pair of storage tanks (1004), and the first discharge pipe (2009) and the second discharge pipe (2010) are each provided with an opening on their outer side.
3. A sorting and weighing device for powders of different particle sizes according to claim 2, characterized in that, A vibration motor (2012) is installed at the bottom of the first screening cover (2007), and a second spring (2006) is movably sleeved on the outside of a pair of vertical rods (2005). The two ends of the second spring (2006) are fixedly connected to the bottom of the first screening cover (2007) and the upper end of the horizontal plate (2004), respectively.
4. A sorting and weighing device for powders of different particle sizes according to claim 1, characterized in that, A pair of telescopic rods (1006) are installed on both sides of the bottom of the working box (1001), and a weighing plate (1008) is installed between the pair of telescopic rods (1006). A weighing sensor (1009) is installed at the bottom of the weighing plate (1008), and a material box (1010) is installed at the top of the weighing plate (1008).
5. A sorting and weighing device for powders of different particle sizes according to claim 4, characterized in that, A first spring (1007) is movably sleeved on the outside of a pair of telescopic rods (1006), and the two ends of the first spring (1007) are fixedly connected to the bottom end of the weighing plate (1008) and the inner wall of the working box (1001), respectively.
6. A sorting and weighing device for powders of different particle sizes according to claim 5, characterized in that, A pair of PLC controllers (1011) are installed on the outside of the work box (1001). The PLC controllers (1011) are electrically connected to the solenoid valve and the weighing sensor (1009) respectively through wires.
7. A sorting and weighing device for powders of different particle sizes according to claim 6, characterized in that, The front of the work box (1001) is hinged with a first door (1012), and the inside of both sides of the work box (1001) is hinged with a second door (1013).