Iron frame screen

Abstract

The utility model discloses an iron frame screen, which relates to the screen field, and comprises a main support frame, the top surface of the main support frame is integrally and fixedly provided with a punching steel screen plate, the top surface of the main support frame is uniformly and symmetrically provided with matched edge holes, one side edge of the main support frame is horizontally butted with a mounting extension rod, and the mounting extension rod is provided with a mounting hole. Fixing through holes are symmetrically formed in the top surfaces of the mounting extension rods, clamping grooves are horizontally formed in the top surfaces of the fixing through holes, sealing rubber strips are horizontally clamped to the inner side edges of the clamping grooves, supporting bottom rods are horizontally, uniformly and fixedly welded to the inner side edge of the main supporting frame, and stable clamping strips are horizontally and fixedly welded to the inner side edge of the main supporting frame. An integrated sealing and fixing structure which is formed by welding the frame, hot-pressing the punched steel plate and the screen mesh and then hot-pressing the iron frame is adopted, so that the overall stability is better, the screen mesh is better attached to the vibrating screen during installation and is firmer, and the service life is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of sieve technology, specifically an iron frame sieve. Background Technology

[0002] A vibrating screen operates by utilizing the reciprocating rotary vibration generated by a vibrator. The upper rotating weight of the vibrator causes the screen surface to produce planar rotary vibration, while the lower rotating weight causes it to produce conical rotary vibration. The combined effect of these two forces results in a complex rotary vibration of the screen surface. Its vibration trajectory is a complex spatial curve. This curve projects as a circle on the horizontal plane and as an ellipse on the vertical plane. Adjusting the excitation force of the upper and lower rotating weights changes the amplitude. Adjusting the spatial phase angle of the upper and lower weights alters the shape of the screen surface's motion trajectory and thus the trajectory of the material on the screen surface.

[0003] When using a vibrating screen, the screen structure is simply a mesh plate connected to a frame. During vibration screening, the screen may fall due to impact, making stable screening impossible. Furthermore, the fixed connection at the edges leaves the middle section unsupported, resulting in greater impact force, which can cause the screen to break and require cleaning, thus affecting the overall service life. Utility Model Content

[0004] The purpose of this utility model is to provide an iron frame screen to solve the problems mentioned in the background art. When using current vibrating screens, the screen structure is set on the frame by connecting the screen plates. During vibration screening, the screen may fall due to impact, resulting in unstable screening. At the same time, the fixed connection at the edge leaves the middle part suspended without a fixed support structure, which makes it receive greater impact force, causing the filter screen to break and be cleaned, thus affecting the overall service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steel frame screen includes a main support frame. A perforated steel mesh plate is integrally fixed to the top surface of the main support frame. The top surface of the main support frame has evenly and symmetrically arranged mating edge holes. One side of the main support frame is horizontally connected to an extension rod. The top surface of the extension rod has symmetrically arranged fixing through holes. The top surface of the fixing through holes has horizontally arranged snap-fit ​​grooves. A sealing strip is horizontally snapped into the inner side of the snap-fit ​​grooves. Supporting base rods are horizontally and evenly fixedly welded to the inner side of the main support frame. Stabilizing strips are horizontally and fixedly welded to the inner side of the main support frame. The sides of the stabilizing strips have evenly arranged sleeves. The perforated steel mesh plate has a stainless steel filter screen fixedly installed on its bottom surface by hot pressing. The inner side of the main support frame has symmetrically opened internal through holes. The inner side of the internal through holes is horizontally inserted with a fixing screw. The side of the extension rod has symmetrically opened mating screw holes. The outer side of the sealing strip is symmetrically fixed with a rigid snap-fit ​​strip. The inner side of the snap-fit ​​groove has symmetrically opened internal snap grooves. The two sides of the sealing strip have symmetrically opened stabilizing grooves. The one side of the rigid snap-fit ​​strip has symmetrically opened side movable grooves. The inner side of the side movable groove is snapped with a top spring. The inner side of the side movable groove is snapped with a snap-fit ​​wedge.

[0007] In a preferred embodiment of this utility model: the perforated steel mesh plate is a multi-hole plate structure, and the perforated steel mesh plate is integrally fixed at the inner top opening end of the main support frame. The bottom surface of the perforated steel mesh plate and the top surface of the stainless steel filter screen are fixedly bonded to each other by heat pressing. There are multiple matching edge holes, and the multiple matching edge holes are arranged horizontally and equidistantly in a straight line at the top surface of the main support frame near the two sides. The edge position of the stainless steel filter screen and the matching edge holes are fixedly connected to each other by stamping.

[0008] In a preferred embodiment of this utility model: all the fixing through holes are opened through the entire structure, the snap-fit ​​groove is opened horizontally through the entire structure, and the two ends of the snap-fit ​​groove extend through the two side walls of the extension rod to the outside in an open shape. The sealing strip is made of soft rubber sealing strip material.

[0009] As a preferred embodiment of this utility model: the supporting base rod is made of small round tube material, and there are multiple supporting base rods. The multiple supporting base rods are arranged in parallel at equal intervals. The supporting base rods are arranged in two sets superimposed on each other at the bottom opening of the inner side of the main support frame. The stabilizing clips are welded and fixed to each other in a cross shape. The multiple supporting base rods are all horizontally fixed and inserted into the inner side of the socket hole.

[0010] In a preferred embodiment of this utility model: one open end of the inner through hole is correspondingly connected to the open end of the mating screw hole to maintain communication; one end of the fixing screw extends horizontally into the interior of the mating screw hole and is threadedly fixed to each other; the hard snap-fit ​​strip is made of hard material and is horizontally fixed in the stabilizing groove.

[0011] In a preferred embodiment of this utility model, the insertion end of the buckle block is disposed at one end of the top connecting spring, and the buckle block is correspondingly disposed on the inner side of the inner buckle groove at the end away from the top connecting spring.

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

[0013] This invention secures the extension rod by horizontally butt-fitting one side of the main support frame with bolts passing through the inner through hole and threaded into the corresponding mating screw hole. A sealing strip is then pressed and snapped into the snap-fit ​​groove. Under the pressure of the top spring, one end of the snap-fit ​​wedge is snapped into the inner snap-fit ​​groove. The rigid snap-fit ​​strip provides stable engagement. This design prevents vibration and displacement of the sealing strip during subsequent sealing applications. The extension rod is then installed on the vibrating screen within the main support frame. After being positioned, the installation is completed using fixed through holes and bolts. The integrated hot-pressed perforated steel mesh plate and stainless steel filter screen are fixedly connected to each other, making it more secure and stable during use. The bottom support rod increases strength and can be directly snapped onto the vibrating screen for installation, making the installation more snug and firm. The integrated sealed and fixed structure, which uses frame welding, perforated steel plate and screen hot pressing, and then hot-pressed iron frame, makes the overall stability better. During installation, it fits the vibrating screen better and is more secure, greatly extending the service life. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of a three-dimensional structure of an iron frame screen.

[0016] Figure 2 A structural schematic diagram showing the connection details of the main support frame of an iron frame screen in a frontal cross-section.

[0017] Figure 3 A top-view cross-sectional schematic diagram showing the connection details of the installation extension rod of an iron frame screen.

[0018] Figure 4A structural schematic diagram showing the connection details of a sealing strip for an iron frame screen.

[0019] In the diagram: 1. Main support frame; 2. Perforated steel mesh plate; 3. Fitting edge hole; 4. Installation extension rod; 5. Fixing through hole; 6. Snap-fit ​​groove; 7. Sealing strip; 8. Support base rod; 9. Stabilizing clip; 10. Sleeve hole; 11. Stainless steel filter screen; 12. Inner through hole; 13. Fixing screw; 14. Fitting screw hole; 15. Hard snap-fit ​​strip; 16. Inner snap groove; 17. Stabilizing groove; 18. Side movable groove; 19. Top connection spring; 20. Snap-fit ​​inclined block. Detailed Implementation

[0020] Please see Figure 1 In this embodiment of the utility model, an iron frame screen includes a main support frame 1. A perforated steel mesh plate 2 is integrally fixedly installed on the top surface of the main support frame 1. Matching edge holes 3 are evenly and symmetrically opened on the top surface of the main support frame 1. An extension rod 4 is horizontally connected to one side of the main support frame 1. The perforated steel mesh plate 2 has a multi-hole plate structure and is integrally fixedly installed at the inner top opening end of the main support frame 1. The bottom surface of the perforated steel mesh plate 2 and the top surface of the stainless steel filter screen 11 are fixedly bonded together by heat pressing. There are multiple matching edge holes 3, and the multiple matching edge holes 3 are arranged in a... The stainless steel filter screen 11 is arranged horizontally and equidistantly on the top surface of the main support frame 1 near both sides. The edge of the stainless steel filter screen 11 and the mating edge hole 3 are fixedly connected to each other by stamping. The top surface of the extension rod 4 is symmetrically provided with a fixing through hole 5. The top surface of the fixing through hole 5 is horizontally provided with a snap-fit ​​groove 6. The inner side of the snap-fit ​​groove 6 is horizontally snapped with a sealing strip 7. The fixing through holes 5 are all through-holes. The snap-fit ​​groove 6 is horizontally through-holes. The two ends of the snap-fit ​​groove 6 extend through the two end side walls of the extension rod 4 to the outside and are open. The sealing strip 7 is made of soft rubber sealing strip material.

[0021] Please see Figure 2-4In this embodiment of the utility model, an iron frame screen is provided, wherein a support base rod 8 is horizontally and uniformly fixedly welded to the inner side of the main support frame 1, and a stabilizing clip 9 is horizontally and fixedly welded to the inner side of the main support frame 1. The stabilizing clip 9 has uniformly opened socket holes 10 on its side. The support base rod 8 is made of small round tube material, and there are multiple support base rods 8 arranged parallel to each other at equal intervals. The support base rods 8 are arranged in two sets, superimposed on each other, at the bottom opening of the inner side of the main support frame 1. The stabilizing clips 9 are welded and fixed in a cross shape, and multiple support base rods 8 are horizontally fixedly inserted into the inner side of the socket holes 10. A stainless steel filter screen 11 is hot-pressed and fixed to the bottom surface of the perforated steel mesh plate 2. Symmetrical inner through holes 12 are opened on the inner side of the main support frame 1, and fixing screws 13 are horizontally inserted into the inner side of the inner through holes 12. The side where the extension rod 4 is installed is symmetrically... The sealing strip 7 has a mating screw hole 14. A rigid snap-fit ​​strip 15 is symmetrically fixed and bonded to the outer side of the sealing strip 7. An inner snap-fit ​​groove 16 is symmetrically opened on the inner side of the snap-fit ​​groove 6. A stabilizing groove 17 is symmetrically arranged on both sides of the sealing strip 7. One open end of the inner through hole 12 is correspondingly connected to the open end of the mating screw hole 14 to maintain communication. One end of the fixing screw 13 extends horizontally into the interior of the mating screw hole 14 and is threadedly fixed to each other. The rigid snap-fit ​​strip 15 is made of rigid material and is horizontally fixed in the stabilizing groove 17. A side movable groove 18 is symmetrically opened on one side of the rigid snap-fit ​​strip 15. A top spring 19 is snapped into the inner side of the side movable groove 18. A snap-fit ​​wedge 20 is snapped into the inner side of the side movable groove 18. The insertion end of the snap-fit ​​wedge 20 is connected to one end of the top spring 19. The end of the snap-fit ​​wedge 20 away from the top spring 19 is correspondingly snapped into the inner side of the inner snap-fit ​​groove 16.

[0022] The working principle of this utility model is as follows:

[0023] The extension rod 4 is horizontally connected to the side of the main support frame 1. Bolts are used to pass through the inner through hole 12 and then threaded into the corresponding mating screw hole 14, thus fixing the extension rod 4 in place. The sealing strip 7 is then pressed and snapped into the snap-fit ​​groove 6. Under the pressure of the top spring 19, one end of the snap-fit ​​inclined block 20 is snapped into the inner snap-fit ​​groove 16. The support of the rigid snap-fit ​​strip 15 makes the snap-fit ​​more stable. This prevents vibration and movement from dislodging the sealing strip 7 during subsequent sealing applications. After the main support frame 1 is installed in the designated position on the vibrating screen, it is fixed with bolts through the fixing through hole 5. The integrated hot-pressed perforated steel mesh plate 2 and the stainless steel filter screen 11 are fixedly connected, making them more secure and stable during use. The bottom support rod 8 increases strength and can also be directly snapped onto the vibrating screen for a more secure and fitting installation.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A steel frame screen, comprising a main support frame (1), characterized in that, The top surface of the main support frame (1) is integrally fixed with a perforated steel mesh plate (2). The top surface of the main support frame (1) is evenly and symmetrically provided with mating edge holes (3). One side of the main support frame (1) is horizontally connected with an installation extension rod (4). The top surface of the installation extension rod (4) is symmetrically provided with a fixing through hole (5). The top surface of the fixing through hole (5) is horizontally provided with a snap-fit ​​groove (6). The inner side of the snap-fit ​​groove (6) is horizontally snapped with a sealing strip (7). The inner side of the main support frame (1) is horizontally and evenly fixedly welded with a support base rod (8). The inner side of the main support frame (1) is horizontally and fixedly welded with a stabilizing clip (9). The side of the stabilizing clip (9) is evenly provided with a sleeve hole (10). The bottom surface of the perforated steel mesh plate (2) is hot-pressed. A stainless steel filter screen (11) is fixedly installed in a combined manner. The inner side of the main support frame (1) is symmetrically provided with an inner through hole (12). A fixing screw (13) is horizontally inserted into the inner side of the inner through hole (12). A matching screw hole (14) is symmetrically provided on one side of the installation extension rod (4). A hard snap strip (15) is symmetrically fixedly bonded to the outer side of the sealing strip (7). An inner snap groove (16) is symmetrically provided on the inner side of the snap groove (6). A stabilizing groove (17) is symmetrically provided on both sides of the sealing strip (7). A side movable groove (18) is symmetrically provided on one side of the hard snap strip (15). A top spring (19) is snapped into the inner side of the side movable groove (18). A snap-on inclined block (20) is snapped into the inner side of the side movable groove (18).

2. The iron frame screen according to claim 1, characterized in that, The perforated steel mesh plate (2) is a multi-hole plate structure, and the perforated steel mesh plate (2) is integrally fixed at the inner top opening of the main support frame (1). The bottom surface of the perforated steel mesh plate (2) and the top surface of the stainless steel filter (11) are fixedly bonded to each other by hot pressing. There are multiple matching edge holes (3), and the multiple matching edge holes (3) are arranged horizontally and equidistantly in a straight line at the top surface of the main support frame (1) near the two sides. The edge position of the stainless steel filter (11) and the matching edge holes (3) are fixedly connected to each other by stamping.

3. The iron frame screen according to claim 1, characterized in that, All the fixed through holes (5) are opened through, the snap-fit ​​groove (6) is opened horizontally through, and the two ends of the snap-fit ​​groove (6) are installed through the two end side walls of the extension rod (4) and extend to the outside in an open shape. The sealing strip (7) is made of soft rubber sealing strip material.

4. The iron frame screen according to claim 1, characterized in that, The support base rod (8) is made of small round tube material. There are multiple support base rods (8), and the multiple support base rods (8) are arranged parallel to each other at equal intervals. The support base rods (8) are arranged in two sets superimposed on each other at the bottom opening of the inner side of the main support frame (1). The stabilizing clips (9) are welded and fixed to each other in a cross shape. The multiple support base rods (8) are all horizontally fixed and inserted into the inner side of the socket hole (10).

5. A wire mesh screen according to claim 1, characterized in that, One open end of the inner through hole (12) is correspondingly connected to the open end of the mating screw hole (14) to maintain communication. One end of the fixing screw (13) extends horizontally into the interior of the mating screw hole (14) and is threadedly fixed to each other. The hard snap-fit ​​strip (15) is made of hard material and is horizontally fixed in the stabilizing groove (17).

6. The iron frame screen according to claim 1, characterized in that, The insertion end of the buckle block (20) is positioned at one end of the top spring (19), and the buckle block (20) is positioned at the inner side of the inner buckle groove (16) at the end away from the top spring (19).

Images