A phosphate ester flame retardant vibrating sifter

Abstract

The utility model discloses a kind of phosphate ester flame retardant vibrating screeners, including screening machine shell, screening plate is slidably connected in the screening machine shell, the screening plate is inclinedly arranged, and phosphate ester flame retardant is screened by screening plate, the inner wall of the screening machine shell is rotatably connected with No. one rotating rod and No. two rotating rods, a plurality of knock cams are fixedly sleeved on No. one rotating rod and No. two rotating rods, and the outer contour of knock cam periodically abuts and hits the lower surface of the screening plate to drive its vibration, the utility model is driven No. one rotating rod, No. two rotating rods and knock cam rotation by the screening plate of inclinedly arranged and drive assembly, knock cam is knocked to screening plate in the process of rotation, screening plate moves up and down under the action of spring, so that screening plate vibration occurs, granular phosphate ester flame retardant can be avoided to stay on screening plate, the screen hole of screening plate is avoided to be blocked, and the screening effect of screening plate to phosphate ester flame retardant is improved.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and more specifically, to a vibrating sieve for phosphate ester flame retardants. Background Technology

[0002] Phosphate ester flame retardants are highly efficient flame retardant additives widely used in plastics, rubber, coatings and other fields. During their production, the pulverized materials often need to be particle size classified to ensure that the product has uniform particle size and good flowability, so as to meet the requirements of subsequent processing and use.

[0003] During the production of flame retardants, large particles in the raw materials typically need to be screened to ensure uniform particle size, thereby improving their efficiency and dispersion performance. However, in existing screening devices, larger particles tend to remain on the surface of the screening plate, accumulating over time and clogging the screen holes, leading to decreased screening efficiency and affecting the continuous and stable operation of the equipment. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a vibrating sieve machine for phosphate flame retardants. It solves the problem that traditional printer spindles often require the use of tools such as screwdrivers and presses during installation, making the disassembly and assembly process cumbersome and hindering the quick disassembly and maintenance of the spindle.

[0005] To achieve the above objectives, this utility model provides a vibrating sieve for phosphate ester flame retardants, comprising a sieve housing, a slidably connected sieve plate within the sieve housing, the sieve plate being inclined for sieving phosphate ester flame retardants, a first rotating rod and a second rotating rod rotatably connected to the inner wall of the sieve housing, each of the first and second rotating rods having multiple striking cams fixedly sleeved on it, the outer contours of the striking cams periodically abutting and striking the lower surface of the sieve plate to drive its vibration, and a mounting box fixedly connected to the side wall of the sieve housing, the mounting box containing a drive assembly for synchronously driving the first and second rotating rods to rotate.

[0006] Preferably, the drive assembly includes a geared motor, a first drive sprocket, a second drive sprocket, and a chain. The first and second rotating rods both penetrate the side walls of the screening machine housing and the mounting box and extend into the mounting box. The geared motor is fixedly installed on the inner wall of the mounting box, and the output end of the geared motor is fixedly connected to the first rotating rod. The first drive sprocket is fixedly sleeved on the first rotating rod, and the second drive sprocket is fixedly sleeved on the second rotating rod. The chain is sleeved on the first and second drive sprockets.

[0007] Preferably, two connecting plates are fixedly connected to the inner wall, and multiple springs are fixedly connected to each connecting plate, with the upper end of each spring fixedly connected to the screening plate.

[0008] Preferably, a U-shaped placement plate is fixedly connected to the side wall of the screening machine housing, a collection box is provided on the U-shaped placement plate, a discharge port is opened on the side wall of the screening machine housing, two limiting vertical blocks are symmetrically fixedly connected to the collection box, insertion slots matching the limiting vertical blocks are symmetrically opened on the inner wall of the U-shaped placement plate, and a handle is fixedly connected to the collection box.

[0009] Preferably, two guide blocks are symmetrically fixedly connected to the inner wall of the screening machine housing. The guide blocks guide the phosphate flame retardant, which facilitates the discharge of the phosphate flame retardant.

[0010] Preferably, the lower end face of the screening machine housing is provided with an opening, the upper end face of the screening machine housing is provided with a feed inlet, and four support legs are symmetrically and fixedly connected to the lower end face of the screening machine housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The inclined screening plate and the drive assembly drive the first rotating rod, the second rotating rod, and the striking cam to rotate. During the rotation of the striking cam, the screening plate is struck. Under the action of the spring, the screening plate moves up and down, causing the screening plate to vibrate. This can prevent particulate phosphate flame retardants from remaining on the screening plate, prevent the screen holes from being blocked, and improve the screening effect of the screening plate on phosphate flame retardants. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure inside the mounting box in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure inside the housing of the Zhong'an screening machine of this utility model.

[0016] Figure 4 This utility model Figure 2 Enlarged view of point A;

[0017] Figure 5 This utility model Figure 2 Enlarged view of point B.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. Screening machine housing; 101. Feed inlet; 102. Support leg; 2. Screening plate; 201. Connecting plate; 202. Spring; 301. Rotating rod No. 1; 302. Rotating rod No. 2; 303. Striking cam; 304. Gear motor; 305. Transmission sprocket No. 1; 306. Transmission sprocket No. 2; 307. Chain; 4. Mounting box; 5. Collection box; 501. Limiting vertical block; 502. Handle; 6. U-shaped placement plate; 7. Guide inclined block. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 This embodiment provides a vibrating screen for phosphate ester flame retardants, including a screen housing 1. Considering that in existing screening devices, larger particles easily remain on the surface of the screening plate 2 during operation, and can clog the screen holes after prolonged accumulation, leading to decreased screening efficiency and affecting the continuous and stable operation of the equipment, a screening plate 2 is slidably connected within the screen housing 1. The screening plate 2 is inclined, and the phosphate ester flame retardant is screened through the screening plate 2. A first rotating rod 301 and a second rotating rod 302 are rotatably connected to the inner wall of the screen housing 1. Multiple striking cams 303 are fixedly sleeved on the second rotating rod 302. The outer contour of the striking cam 303 periodically abuts against and impacts the lower surface of the screening plate 2 to drive its vibration. A mounting box 4 is fixedly connected to the side wall of the screening machine housing 1. A drive assembly is provided inside the mounting box 4. The drive assembly is used to synchronously drive the first rotating rod 301 and the second rotating rod 302 to rotate. Two connecting plates 201 are fixedly connected to the inner wall of 1. Multiple springs 202 are fixedly connected to each connecting plate 201. The upper end of each spring 202 is fixedly connected to the screening plate 2.

[0022] In summary, the improvement of this embodiment lies in:

[0023] The inclined screening plate 2, along with the drive assembly, rotates the first rotating rod 301, the second rotating rod 302, and the striking cam 303. During the rotation of the striking cam 303, the screening plate 2 is struck. Under the action of the spring 202, the screening plate 2 moves up and down, causing the screening plate 2 to vibrate. This prevents granular phosphate flame retardant from remaining on the screening plate 2, avoids clogging of the screen holes, and improves the screening effect of the screening plate 2 on the phosphate flame retardant.

[0024] Based on the above, other structures also need to be disclosed in detail, such as:

[0025] Please see Figure 2 , Figure 4 and Figure 5 Considering the need to drive the first rotating rod 301 and the second rotating rod 302 to rotate synchronously, the drive assembly includes a geared motor 304, a first transmission sprocket 305, a second transmission sprocket 306, and a chain 307. Both the first rotating rod 301 and the second rotating rod 302 penetrate the side walls of the screening machine housing 1 and the mounting box 4 and extend into the mounting box 4. The geared motor 304 is fixedly mounted on the inner wall of the mounting box 4, and its output end is fixedly connected to the first rotating rod 301. The first transmission sprocket 305 is fixedly mounted on the inner wall of the mounting box 4. A fixed sleeve is attached to the first rotating rod 301, and a second transmission sprocket 306 is fixedly attached to the second rotating rod 302. A chain 307 is sleeved on the first transmission sprocket 305 and the second transmission sprocket 306. When the reduction motor 304 is started, the output end of the reduction motor 304 drives the first rotating rod 301 to rotate. The first rotating rod 301 drives the second rotating rod 302 to rotate through the first transmission sprocket 305, the second transmission sprocket 306 and the chain 307, thereby driving the first rotating rod 301 and the second rotating rod 302 to rotate synchronously.

[0026] Please see Figure 1 and Figure 2 Considering the need to collect the granular phosphate flame retardant after screening, a U-shaped placement plate 6 is fixedly connected to the side wall of the screening machine housing 1. A collection box 5 is set on the U-shaped placement plate 6. A discharge port is opened on the side wall of the screening machine housing 1. Two limiting vertical blocks 501 are symmetrically fixedly connected to the collection box 5. Insertion slots matching the limiting vertical blocks 501 are symmetrically opened on the inner wall of the U-shaped placement plate 6. A handle 502 is fixedly connected to the collection box 5. The granular phosphate flame retardant moves along the screening plate 2 and enters the collection box 5 through the discharge port.

[0027] Please see Figure 3 Two guide blocks 7 are symmetrically fixedly connected to the inner wall of the screening machine housing 1. The guide blocks 7 guide the phosphate flame retardant, which facilitates the discharge of the phosphate flame retardant.

[0028] Please see Figure 1 , Figure 2 and Figure 3 The lower end face of the screening machine housing 1 is provided with a through-hole, and the upper end face of the screening machine housing 1 is provided with a feed inlet 101. Four support legs 102 are symmetrically and fixedly connected to the lower end face of the screening machine housing 1. The phosphate flame retardant is added into the screening machine housing 1 through the feed inlet 101, and the powdered phosphate flame retardant is discharged from the through-hole.

[0029] In summary, the working principle of this solution is as follows:

[0030] The phosphate flame retardant is added into the screening machine housing 1 through the feed inlet 101. The phosphate flame retardant falls onto the screening plate 2, which screens it. The powdered phosphate flame retardant passes through the sieve holes of the screening plate 2 and falls into the lower end of the screening machine housing 1, while the granular phosphate flame retardant moves downward along the screening plate 2. The reduction motor 304 is started, and the output end of the reduction motor 304 drives the first rotating rod 301 to rotate. The first rotating rod 301 is driven by the first transmission sprocket 305 and the second transmission sprocket. 306 and chain 307 drive the second rotating rod 302 to rotate, which in turn drives the first rotating rod 301, the second rotating rod 302 and the striking cam 303 to rotate. During the rotation of the striking cam 303, it strikes the screening plate 2. Under the action of spring 202, the screening plate 2 moves up and down, causing the screening plate 2 to vibrate, which improves the screening effect of the screening plate 2 on the phosphate ester flame retardant, and at the same time accelerates the downward movement of the granular phosphate ester flame retardant. The granular phosphate ester flame retardant passes through the discharge port and enters the collection box 5.

[0031] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0032] 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 vibrating sieve for phosphate ester flame retardants, comprising a sieve housing (1), characterized in that: A screening plate (2) is slidably connected in the screening machine housing (1). The screening plate (2) is inclined and screens the phosphate ester flame retardant. A first rotating rod (301) and a second rotating rod (302) are rotatably connected to the inner wall of the screening machine housing (1). Multiple striking cams (303) are fixedly sleeved on the first rotating rod (301) and the second rotating rod (302). The outer contour of the striking cam (303) periodically abuts and impacts the lower surface of the screening plate (2) to drive its vibration. A mounting box (4) is fixedly connected to the side wall of the screening machine housing (1). A driving component is provided in the mounting box (4). The driving component is used to synchronously drive the first rotating rod (301) and the second rotating rod (302) to rotate.

2. The vibrating sieve for phosphate ester flame retardants according to claim 1, characterized in that: The drive assembly includes a geared motor (304), a first transmission sprocket (305), a second transmission sprocket (306), and a chain (307). The first rotating rod (301) and the second rotating rod (302) both penetrate the side wall of the screening machine housing (1) and the mounting box (4) and extend into the mounting box (4). The geared motor (304) is fixedly installed on the inner wall of the mounting box (4). The output end of the geared motor (304) is fixedly connected to the first rotating rod (301). The first transmission sprocket (305) is fixedly sleeved on the first rotating rod (301). The second transmission sprocket (306) is fixedly sleeved on the second rotating rod (302). The chain (307) is sleeved on the first transmission sprocket (305) and the second transmission sprocket (306).

3. The vibrating sieve for phosphate ester flame retardants according to claim 1, characterized in that: Two connecting plates (201) are fixedly connected to the inner wall of the screening machine housing (1). Each connecting plate (201) is fixedly connected to multiple springs (202), and the upper end of each spring (202) is fixedly connected to the screening plate (2).

4. The vibrating sieve for phosphate ester flame retardants according to claim 3, characterized in that: A U-shaped placement plate (6) is fixedly connected to the side wall of the screening machine housing (1). A collection box (5) is provided on the U-shaped placement plate (6). A discharge port is opened on the side wall of the screening machine housing (1). Two limiting vertical blocks (501) are symmetrically fixedly connected to the collection box (5). An insertion groove matching the limiting vertical block (501) is symmetrically opened on the inner wall of the U-shaped placement plate (6). A handle (502) is fixedly connected to the collection box (5).

5. The vibrating sieve for phosphate ester flame retardants according to claim 1, characterized in that: Two guide blocks (7) are symmetrically fixedly connected to the inner wall of the screening machine housing (1). The guide blocks (7) guide the phosphate flame retardant, which facilitates the discharge of the phosphate flame retardant.

6. The vibrating sieve for phosphate ester flame retardants according to claim 1, characterized in that: The lower end face of the screening machine housing (1) is provided with an opening, the upper end face of the screening machine housing (1) is provided with a feed inlet (101), and four support legs (102) are symmetrically and fixedly connected to the lower end face of the screening machine housing (1).

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