CN111974676A - A screen fixing device - Google Patents

Abstract

An embodiment of the present invention discloses a screen fixing device, comprising a support device and a fixed sealing device, the screen is installed on the support device, and the support device is detachably installed on the inner wall of the vibrating screen through the fixed sealing device . The embodiment of the present invention provides a screen fixing device to solve the problems in the prior art, such as low work efficiency and easy powder leakage due to the complicated screen fixing structure and the difficulty in installation, fixing, disassembly and cleaning.

Description

A screen fixing device

technical field

Embodiments of the present invention relate to the technical field of vibrating screens, in particular to a screen fixing device.

Background technique

At present, vibrating screens are used in many fields, such as pharmaceutical, food, chemical, mining, metallurgy, steel and other industries.

The fixing of each layer of the existing vibrating screen is composed of a screen, a pressure plate, a sealing ring, a clamp and other components. During the use of the vibrating screen, the screen used by the vibrating screen needs to be replaced frequently according to production requirements. Screens with different mesh numbers, especially in the pharmaceutical industry, need to be disassembled and washed frequently in addition to replacing the screens with different mesh numbers. Therefore, disassembling the screens has become a more complicated and heavy work in the process of using the vibrating screen.

The use of vibrating screen in the pharmaceutical industry will have high requirements on the sealing of the vibrating screen. Once the dust leakage occurs between the screen layers during the working process, it will have a serious impact on the quality of the drug. The fixed structure of the screen is complex, the installation and fixing, disassembly and cleaning are difficult, the work efficiency is low, the design structure is complex, the processing precision is high, the processing difficulty is large, and the processing cost is high. Therefore, there is a need for a screen fixing solution with a simple structure, which can realize convenient and quick disassembly and is economical and effective.

SUMMARY OF THE INVENTION

Therefore, the embodiment of the present invention provides a screen fixing device to solve the problems in the prior art, such as low work efficiency, easy powder leakage, etc. .

In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:

A screen fixing device according to an embodiment of the present invention includes a support device and a fixed sealing device, the screen is installed on the support device, and the support device is detachably installed on the inner wall of the vibrating screen through the fixed sealing device .

Further, the supporting device includes a supporting member, the outer side wall of the supporting member is provided with a groove, and the screen is fixed on the upper surface of the supporting member; the fixed sealing device includes an inflatable sealing assembly, so The inflatable seal assembly is installed in the groove of the support.

Further, a ring-shaped member is selected as the support member, an annular groove is formed on the outer surface of the ring-shaped member, and the screen mesh is fixed on the upper ring surface of the ring-shaped member.

Further, the inflatable sealing assembly includes a sealing ring and an inflating nozzle, the inflating nozzle is fixed on the sealing ring, and a closed annular cavity is opened in the center of the sealing ring, and the annular cavity is connected to the sealing ring. The inflatable nozzle is connected.

Further, the sealing ring is installed in the groove, and the shape of the sealing ring is adapted to the shape of the groove.

Further, a gap is left between the support and the inner wall of the vibrating screen, and a gap is left between the inflatable sealing assembly and the inner wall of the vibrating screen when the air is not inflated.

Further, a support leg mechanism is also included, the support leg mechanism is installed on the lower surface of the support device, and the support leg mechanism is used to support the support device.

Further, the support leg mechanism includes a metal seat and a support leg, the metal seat is connected to the support device, and the support leg is connected to a side of the metal seat away from the support device.

Further, the material of the support legs is a soft material, and the number of the support legs is not less than two.

A vibrating screen, comprising the screen fixing device according to any one of claims 1-9.

The embodiments of the present invention have the following advantages:

1. The screen fixing device disclosed in the present invention installs the screen in the vibrating screen through a supporting device and a fixed sealing device. The device has a simple structure, low processing cost, convenient installation and disassembly, no powder leakage, and good sealing effect. high working efficiency;

2. In the present invention, the screen mesh is assembled into a whole through the screen mesh fixing device. When installing, it is only necessary to install the fixed device with the screen mesh into the vibrating screen in sequence according to the production requirements, and there is no need to divide the vibrating screen into multiple segments. Reconnect, easy to install and disassemble;

3. The material of the fixed sealing device used in the present invention is an elastic material. When inflated and expanded, it can stick to the wall of the vibrating screen according to the shape of the inner wall of the vibrating screen, and use the characteristics of the elastic annular cavity to make up for the irregular shape of the inner wall of the vibrating screen. , to ensure the sealing effect, and also reduce the processing accuracy requirements for the inner wall of the vibrating screen and reduce the processing cost;

4. The fixed sealing device used in the present invention completely separates the metal part of the support device from the inner wall of the vibrating screen, avoiding the vibration of the vibrating screen and causing the collision and friction between metals, reducing noise and prolonging the service life of the equipment.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can also be obtained according to the extension of the drawings provided without creative efforts.

The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the conditions for the implementation of the present invention, so there is no technical The substantive meaning, any modification of the structure, the change of the proportional relationship or the adjustment of the size, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the technical content disclosed in the present invention. within the scope of coverage.

1 is a partial cross-sectional view of a screen fixing device and a vibrating screen provided by an embodiment of the present invention;

2 is a schematic structural diagram of a screen fixing device and a vibrating screen provided by an embodiment of the present invention;

3 is a top view of a vibrating screen provided by an embodiment of the present invention;

In the figure: 1. Support; 2. Sealing ring; 3. Inflating nozzle; 4. Annular cavity; 5. Metal seat; 6. Supporting leg; 7. Screen; 8. Vibrating screen; 101. One layer of screen ; 201, two-layer screen; 301, three-layer screen.

Detailed ways

The embodiments of the present invention are described below by specific specific embodiments. Those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-3, an embodiment of the present invention discloses a screen fixing device, including a support device and a fixed sealing device, the screen 7 is installed on the support device, and the support device passes through the fixed sealing device Removably installed on the inner wall of the vibrating screen 8 . The support device includes a support 1, the outer side wall of the support is provided with a groove, and the opening direction of the groove faces the inner wall of the vibrating screen 8 for fixing the screen 7, and the screen 7 is fixed on the upper part of the support. surface. The support member 1 is an annular member, the outer surface of the annular member is provided with an annular groove, and the screen 7 is fixed on the upper annular surface of the annular member. The screen fixing device disclosed in the present invention installs the screen 7 in the vibrating screen 8 through a supporting device and a fixed sealing device. The device has a simple structure, low processing cost, convenient installation and disassembly, no powder leakage and good sealing effect. high working efficiency. The traditional vibrating screen is a segmented mechanism, and multiple segments need to be assembled before use, while the screen fixing device assembles the screen into a whole. The fixing device of the net is installed into the vibrating screen, and there is no need to divide the vibrating screen into multiple segments and then reconnect, and the installation and disassembly are convenient.

The stationary sealing device comprises an inflatable sealing assembly which is installed in the groove of the support 1 . The inflatable sealing assembly includes a sealing ring 2 and an inflating nozzle 3. The inflating nozzle 3 is fixed on the sealing ring 2. A closed annular cavity 4 is opened in the center of the sealing ring 2. The annular cavity 4 It communicates with the inflatable nozzle 3 . The sealing ring 2 is installed in the groove of the support member 1, and the shape of the sealing ring 2 is adapted to the shape of the groove. The material of the fixed sealing device used in the present invention is an elastic material. When inflated and expanded, it can stick to the wall of the vibrating screen 8 according to the shape of the inner wall of the vibrating screen 8, and use the characteristics of the annular cavity 4 to make up for the irregular shape of the inner wall of the vibrating screen 8. It can ensure the sealing effect and reduce the processing accuracy requirements for the inner wall of the vibrating screen 8; fix the sealing device to completely separate the metal part of the support device from the inner wall of the vibrating screen 8 to avoid the vibration of the vibrating screen 8 causing metal The collision and friction between them reduces noise and prolongs the service life of the equipment. A gap is left between the support 1 and the inner wall of the vibrating screen 8 , and a gap is left between the inflatable sealing assembly and the inner wall of the vibrating screen 8 when not inflated.

The material of the sealing ring 2 is an elastic material, but not limited to a silicone material; the groove of the support 1 is not limited to a square or arc shape. The shape of the sealing ring 2 is the same as that of the groove, and the sealing ring 2 is close to the groove when inflated.

It also includes an outrigger mechanism, the lower surface of the support 1 can be optionally installed with an outrigger mechanism, and the outrigger mechanism is used for the upper and lower spatial positioning of the multi-layer screen. For example, between the first-layer screen 101 and the second-layer screen 201, and between the second-layer screen 201 and the third-layer screen 301, a leg mechanism needs to be provided. The outrigger mechanism includes a metal base 5 and a support leg 6, the metal base 5 is connected to the support 1, the support leg 6 is connected to the side of the metal base 5 away from the support device, and the material of the support leg 6 can be a soft material, but is not limited to Silicone material, the support legs 6 are installed on the metal base 5, and the support legs 6 of different heights can be replaced according to the distance between the upper and lower screens. The support legs 6 of soft material can be easily disassembled from the metal base 5. The number of support leg mechanisms No less than two, so as to ensure that the placement of the screen fixture is easy to find the level. A layer of screen mesh 101 is directly fixed on the lowest layer of the wall of the vibrating screen 8, and there is no need to install a supporting leg mechanism.

working principle:

First, insert the sealing ring 2 of the fixed sealing device into the annular groove of the support member 1, place the support member 1 equipped with the sealing ring 2 in the vibrating screen 8, and connect the air nozzle 3 through the side wall of the vibrating screen 8 to connect the outside For the air source, the direction of the inflatable nozzle 3 can also be the inner side or the upper and lower sides of the sealing ring 2. The inflatable nozzle 3 is connected to the outer side of the wall of the vibrating screen 8 through the trachea and communicated with the external air source. After the screen fixing device is placed in the designated position in the vibrating screen 8, the compressed air from the external air source is inflated into the annular cavity 4 of the sealing ring 2 through the inflation nozzle 3 of the fixed sealing device, and the sealing ring 2 is close to the vibrating screen. The direction of the side wall of 8 expands until the side wall of the vibrating screen 8 is pressed. There is a gap between the sealing ring 2 and the side wall of the vibrating screen 8 when it is not inflated.

According to the above operation, the annular cavity 4 of the sealing ring 2 is continuously filled with gas with a stable pressure to maintain the bonding force between the sealing ring 2 and the side wall of the vibrating screen 8, and the screen is fixed to the vibrating screen by the support 1. In the screen 8, at the same time, the sealing ring 2 seals and isolates the upper and lower layers of the screen to prevent a large number of materials from the upper screen from leaking into the lower screen, thereby affecting the stability of subsequent production. The structure of the sealing ring 2 can be adjusted according to the needs of different industries. For example, a flash structure is added to the upper edge of the sealing ring 2 close to the side wall of the vibrating screen 8 to prevent the material of the upper screen from entering the gap.

The vibrating screen 8 can be made into a single-layer vibrating screen 8 or a multi-layer vibrating screen 8 by using the screen fixing device of the present invention as required.

Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the present invention, which will be obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention fall within the scope of the claimed protection of the present invention.

Claims (10)

1. A screen cloth fixing device which characterized in that: the screen mesh screening device comprises a supporting device and a fixing and sealing device, wherein the screen mesh is arranged on the supporting device, and the supporting device is detachably arranged on the inner wall of the vibrating screen through the fixing and sealing device.

2. A screen fixing means as claimed in claim 1, in which: the supporting device comprises a supporting piece, a groove is formed in the outer side wall of the supporting piece, and the screen is fixed on the upper surface of the supporting piece; the fixed sealing means comprises an inflatable sealing assembly mounted in a recess of the support member.

3. A screen fixing means as claimed in claim 2, in which: the supporting piece is a ring-shaped piece, an annular groove is formed in the outer surface of the ring-shaped piece, and the screen is fixed on the upper annular surface of the ring-shaped piece.

4. A screen fixing means as claimed in claim 2, in which: the inflatable sealing assembly comprises a sealing ring and an inflating nozzle, the inflating nozzle is fixed on the sealing ring, a closed annular cavity is formed in the center of the sealing ring, and the annular cavity is communicated with the inflating nozzle.

5. A screen fixing means as claimed in claim 4, in which: the sealing ring is arranged in the groove, and the shape of the sealing ring is matched with that of the groove.

6. A screen fixing means as claimed in claim 2, in which: a gap is reserved between the supporting piece and the inner wall of the vibrating screen, and a gap is reserved between the inflatable sealing assembly and the inner wall of the vibrating screen when the inflatable sealing assembly is not inflated.

7. A screen fixing means as claimed in claim 1, in which: the support device is characterized by further comprising a support leg mechanism, wherein the support leg mechanism is installed on the lower surface of the support device and is used for supporting the support device.

8. A screen fixing means as claimed in claim 7, in which: the supporting leg mechanism comprises a metal seat and a supporting leg, the metal seat is connected with the supporting device, and the supporting leg is connected to one side, far away from the supporting device, of the metal seat.

9. A screen fixing means as claimed in claim 8, in which: the supporting legs are made of soft materials, and the number of the supporting legs is not less than two.

10. A vibrating screen is characterized in that: comprising a screen fixing device as claimed in any of claims 1 to 9.

Images