Screening device for rubber powder production
By introducing a pneumatic telescopic rod to drive the needle in the rubber powder production device to automatically clear the blocked screen holes, the problem of screen blockage during the rubber powder screening process is solved, improving production efficiency and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-14
AI Technical Summary
Existing adhesive powder production equipment is prone to screen blockage during the screening process due to the high viscosity or high moisture content of the adhesive powder, requiring manual intervention for cleaning, which increases labor costs and reduces production capacity.
A screening device for producing adhesive powder was designed. It uses a pneumatic telescopic rod to drive the needle mounting base and the needle. By raising and lowering the needle at the corresponding position of the sieve hole, the device can automatically clear the blockage of adhesive powder particles and avoid downtime for cleaning.
This technology enables the screening device to automatically clear blockages without shutting down, improving work efficiency, reducing labor costs, and increasing production capacity.
Smart Images
Figure CN224114537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adhesive powder production technology, specifically a screening device for adhesive powder production. Background Technology
[0002] Rubber powder is a key material connecting resource recycling and industrial applications. Its diverse properties and environmental value make it an indispensable part of modern manufacturing. Different industries have strict requirements for the particle size distribution of rubber powder, therefore, rubber powder screening is a crucial step in rubber powder processing and application. Rubber powder screening refers to the process of classifying or removing impurities from rubber powder according to particle size, density, or other characteristics through physical methods (such as sieving, air separation, etc.). Its core objective is to obtain a uniform particle distribution or meet specific purity requirements according to application needs. Rubber powder typically refers to rubber powder (such as recycled tire rubber powder), polymer powder (such as redispersible latex powder for construction), or other industrial colloidal powders.
[0003] Currently, commonly used techniques for rubber powder screening include mechanical screening, air classifying, and ultrasonic-assisted screening. Mechanical screening works by using the vibration or rotation of multiple layers of screens (with different apertures) to classify rubber powder particles according to size; smaller particles pass through the screen, while larger particles are retained. Air classifying separates light and heavy particles using airflow, or utilizes differences in particle inertia to achieve classification; it is often used for ultrafine rubber powders (e.g., 200 mesh and above). Ultrasonic screening combines magnetic separation (to remove metals) and air classification (to separate fibers) to improve the purity of the rubber powder. These technologies are relatively mature and are widely used in rubber recycling, building materials, 3D printing, plastic coatings, and the pharmaceutical and food industries.
[0004] When a rubber powder screening device is in operation, rubber powder particles often easily clog the screen surface due to factors such as high viscosity or high moisture content. This usually requires manual intervention, such as stopping the machine to clean the screen and then restarting it, which significantly increases labor costs and reduces productivity. Currently, most rubber powder screening devices on the market lack efficient automatic screen cleaning capabilities. Therefore, this invention provides a rubber powder screening device that can automatically clean and unclog clogged screens to solve the aforementioned technical problems. Utility Model Content
[0005] The purpose of this utility model embodiment is to provide a screening device for producing adhesive powder, which aims to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A screening device for producing adhesive powder includes a screening cart body, with a screening plate installed inside the screening cart body. The surface of the screening plate has several screening holes of the same size. A screening cart support is provided on the side of the screening cart body, and a fixing plate is detachably connected to the outer side of the screening cart support. A pneumatic telescopic rod is installed on the surface of the fixing plate, and a needle mounting seat is provided at the telescopic end of the pneumatic telescopic rod. Several needles are detachably connected to the surface of the needle mounting seat. A connecting rod is connected to the surface of the fixing plate, and a fixed end clamp is connected to one end of the connecting rod. A hinge is installed on the outer side of the fixed end clamp, and a movable end clamp is rotatably connected to the surface of the hinge. Screws are provided on the surfaces of the movable end clamp and the fixed end clamp.
[0008] Furthermore, the surface of the needle mounting base is provided with several threaded grooves, and the needles are engaged with the inside of the threaded grooves. The surface of the needles is provided with fixing threads.
[0009] Furthermore, the position and specifications of the needle correspond one-to-one with the position and specifications of the sieve holes.
[0010] Furthermore, drawer slides are provided on both sides of the interior of the powder screening vehicle, and the screen plate is slidably connected inside the drawer slide.
[0011] Furthermore, the thickness of the middle section of the movable end clamp is consistent with the thickness of the fixing hole of the powder screening vehicle.
[0012] Furthermore, the surface of the needle is provided with an anti-adhesion coating.
[0013] The screening device for producing adhesive powder provided by this utility model has the following beneficial effects:
[0014] By incorporating a pneumatic telescopic rod, a fixed plate, a needle mounting base, and a needle, when adhesive powder particles clog the screen holes, the operator activates the pneumatic telescopic rod to control the raising and lowering of the needle mounting base. This allows the needle to intermittently puncture the screen holes, clearing the blockage of adhesive powder particles. The entire process can be completed without stopping the equipment. Therefore, the screening device for adhesive powder production provided by this invention can automatically clean and unclog screen plates. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a screening device for producing adhesive powder.
[0016] Figure 2 This is a top view of a screening device for producing adhesive powder, including a screening cart support, screening cart body, sieve plate, sieve holes, and screening cart fixing holes.
[0017] Figure 3This is a partial schematic diagram of a needle mounting base and a needle in a screening device for producing adhesive powder.
[0018] Figure 4 A screening device for producing adhesive powder Figure 1 A magnified view of a portion of point A in the middle.
[0019] Figure 5 A screening device for producing adhesive powder Figure 3 A magnified view of a section at point B.
[0020] In the diagram: 1. Pneumatic telescopic rod; 2. Fixing plate; 3. Connecting rod; 4. Needle mounting seat; 5. Needle; 6. Sieving cart bracket; 7. Drawer slide; 8. Sieving cart body; 9. Sieve plate; 10. Sieve hole; 11. Sieving cart fixing hole; 12. Hinge; 13. Moving end clamp; 14. Fixed end clamp; 15. Screw; 16. Threaded groove. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0023] like Figure 1 , Figure 2 as well as Figure 4 As shown in the illustration, this utility model provides a screening device for producing adhesive powder. The device includes a screening cart body 8, which typically has a certain slope, with the powder outlet at its end slightly lower than the starting point. A sieve plate 9 is installed inside the screening cart body 8. Preferably, the sieve plate is made of stainless steel, polyurethane, nylon, composite materials, or ceramic coatings, which are wear-resistant, have high hardness, and are more durable. The surface of the sieve plate 9 has several sieve holes 10 of the same size, the size of which is usually related to the required particle size of the adhesive powder to be screened. The above technical features are all mature existing technologies, and are technical solutions that are easy for those skilled in the art to obtain or conceive of. Those skilled in the art can make corresponding adjustments and selections based on the above technical solutions.
[0024] In one embodiment of this utility model, a screening cart support 6 is provided on the side of the screening cart body 8. The material of the screening cart support 6 should have the characteristics of high tensile strength, compressive strength, and high strength. Preferably, carbon steel, alloy steel, and cast iron can be used. A fixing plate 2 is detachably connected to the outer side of the screening cart support 6. A pneumatic telescopic rod 1 is installed on the surface of the fixing plate 2, and a needle mounting seat 4 is provided at the telescopic end of the pneumatic telescopic rod 1. Several needles 5 are detachably connected to the surface of the needle mounting seat 4.
[0025] A connecting rod 3 is connected to the surface of the fixed plate 2. Both the fixed plate 2 and the connecting rod 3 have threaded holes of the same size and specifications on their surfaces, allowing for a detachable connection. This installation method allows the fixed plate 2 to accommodate more models of connecting rod 3 and their downstream structures. One end of the connecting rod 3 is connected to a fixed end clamp 14, and a hinge 12 is mounted on the outside of the fixed end clamp 14. A movable end clamp 13 is rotatably connected to the surface of the hinge 12. The movable end clamp 13 has a concave structure on its surface, and both the movable end clamp 13 and the fixed end clamp 14 have corresponding holes of the same size. They can be fitted with screws 15 through these holes to form an adjustable clamp structure. Therefore, the fixed plate 2 and its entire assembly can accommodate screening cart brackets 6 of different sizes.
[0026] The working process of the above technical solution is as follows: When the screening device for rubber powder production is working, the main body 8 of the screening cart will form a small-range, horizontal reciprocating motion under the action of external force. This allows the rubber powder particles to gradually fall into the lower powder storage space through the structure of the screen plate 9 and the screen holes 10. When some rubber powder particles are stuck on the surface or inside of the screen holes 10 and cannot be screened, the operator activates the pneumatic telescopic rod 1, which drives the needle mounting seat 4 to move up and down. At the same time, since the position of the needle 5 corresponds to the vertical direction of the screen holes 10, during the intermittent up and down movement, the needle 5 can pierce and clear the rubber powder particles stuck on the surface and inside of the screen holes 10.
[0027] In this embodiment, the surface of the needle 5 is provided with an anti-adhesion coating. This is because the adhesive powder particles have a certain degree of stickiness. In order to prevent the needle 5 from being wrapped by them and thus affecting the subsequent puncture effect, the surface of the needle 5 can be sprayed with an anti-adhesion coating to make its working efficiency more efficient.
[0028] In this embodiment, drawer slides 7 are provided on both sides of the interior of the powder sieving cart body 8, and the sieve plate 9 is slidably connected inside the drawer slides 7. This is because the traditional method of replacing the sieve plate is time-consuming and complicated. By using the drawer-type sliding connection, the sieve plate 9 can be pulled out as a whole. This design greatly improves the efficiency of replacing the sieve plate 9 and reduces the difficulty of the work.
[0029] In this embodiment, the position and size of the needle 5 correspond one-to-one with the position and size of the sieve hole 10. This design allows the needle 5 to penetrate the sieve hole 10 more precisely, while avoiding the creation of new holes on the surface of the sieve plate 9.
[0030] In this embodiment, the thickness of the middle section of the movable end clamp 13 is the same as the thickness of the fixing hole 11 of the powder screening cart. This design is to ensure that the size of the groove of the movable clamp 13 can better fit into the fixing hole 11 of the powder screening cart, thereby achieving a more stable installation effect. When the powder screening cart body 8 is working, the fixing plate 2, the needle mounting seat 4, and the needle 5 can be stably fixed to it and perform synchronous reciprocating motion.
[0031] like Figure 3 and Figure 5 As shown, in one embodiment of this utility model, the surface of the needle mounting base 4 is provided with a plurality of threaded grooves 16, and the needle 5 is engaged with the inside of the threaded grooves 16, and the surface of the needle 5 is provided with a fixing thread.
[0032] In this embodiment, the needle 5 can be detachably connected to the needle mounting seat 4 by means of threaded installation. This connection method makes it easier to disassemble and replace worn or different specifications of needle 5. With the replacement of the sieve plate 9, sieving work of different precision can be carried out inside the same sieving cart body 8.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A screening device for producing adhesive powder, comprising a screening cart body (8), wherein a screening plate (9) is installed inside the screening cart body (8), and the surface of the screening plate (9) is provided with a plurality of screening holes (10) of the same size, characterized in that, The side of the powder screening vehicle body (8) is provided with a powder screening vehicle bracket (6), and a fixing plate (2) is detachably connected to the outside of the powder screening vehicle bracket (6). A pneumatic telescopic rod (1) is installed on the surface of the fixing plate (2), and a needle mounting seat (4) is provided at the telescopic end of the pneumatic telescopic rod (1). Several needles (5) are detachably connected to the surface of the needle mounting seat (4). The surface of the fixed plate (2) is connected to a connecting rod (3), and one end of the connecting rod (3) is connected to a fixed end clamp (14). A hinge (12) is installed on the outside of the fixed end clamp (14). A movable end clamp (13) is rotatably connected to the surface of the hinge (12). Screws (15) are provided on the surfaces of the movable end clamp (13) and the fixed end clamp (14).
2. The screening device for producing adhesive powder according to claim 1, characterized in that, The surface of the needle mounting base (4) is provided with several threaded grooves (16), and the needle (5) is engaged with the inside of the threaded grooves (16). The surface of the needle (5) is provided with a fixing thread.
3. The screening device for producing adhesive powder according to claim 1, characterized in that, The position and specifications of the needle (5) correspond one-to-one with the position and specifications of the sieve hole (10).
4. The screening device for producing adhesive powder according to claim 1, characterized in that, The powder screening vehicle body (8) has drawer slides (7) on both sides inside, and the screen plate (9) is slidably connected inside the drawer slides (7).
5. A screening device for producing adhesive powder according to claim 1, characterized in that, The thickness of the middle section of the movable end clamp (13) is consistent with the thickness of the fixing hole (11) of the powder screening vehicle.
6. The screening device for producing adhesive powder according to claim 1, characterized in that, The surface of the needle (5) is provided with an anti-adhesion coating.