CN215945013U - Membrane material overspeed device tensioner and directional ultrasonic screen - Google Patents
Membrane material overspeed device tensioner and directional ultrasonic screen Download PDFInfo
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- CN215945013U CN215945013U CN202121827928.9U CN202121827928U CN215945013U CN 215945013 U CN215945013 U CN 215945013U CN 202121827928 U CN202121827928 U CN 202121827928U CN 215945013 U CN215945013 U CN 215945013U
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Abstract
The utility model discloses a membrane material tensioning device and a directional ultrasonic screen, wherein the membrane material tensioning device comprises a base, a clamping and fixing structure and a jacking structure, the periphery of a membrane material is clamped and fixed on the base through the clamping and fixing structure, the jacking structure comprises a jacking piece, the jacking piece is positioned below a part to be tensioned of the membrane material and distributed along at least one circle close to the outer edge of the part to be tensioned, and the jacking piece jacks the outer edge of the part to be tensioned of the membrane material upwards to tension the part to be tensioned of the membrane material. The utility model is suitable for the film pasting in the field of directional ultrasonic screens, and in addition, the driving efficiency is improved due to the tensioning of the film material, so that the directional ultrasonic screen generates higher sound pressure level.
Description
Technical Field
The utility model relates to the technical field of control of surface tension of membrane materials, in particular to a membrane material tensioning device and a directional ultrasonic screen.
Background
Traditional pad pasting board divide into soft to hard/hard to hard sticking film machine, and soft platform generally is used for placing the membrane material, and hard platform is used for placing substrates such as apron, glass, and in touch-sensitive screen display field, the platform possesses the function of bleeding during the laminating, can guarantee that the material levels and adsorbs on the mesa, and general laminating mode adopts and pastes completely in addition.
But in directional ultrasonic screen field, the material is because there is certain space to be used for vibrations, consequently need adopt the frame laminating mode, and the membrane material can lead to the material to become lax because vibrations produce the creep in normal work in addition, consequently needs the membrane material to keep self to have certain tension when the laminating, just can effectively overcome lax problem, but traditional pad pasting board can't satisfy this demand.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a membrane material tensioning device for controlling the surface tension of a membrane material of a directional ultrasonic screen and the directional ultrasonic screen.
To achieve the above object, in one aspect, the present invention provides a film material tension device, including:
the film material to be tensioned is arranged on the base;
the periphery of the membrane material is clamped and fixed on the base through the clamping and fixing structure, and the membrane material is divided into a peripheral pressing part and a part to be tensioned, wherein the peripheral pressing part is positioned in the periphery;
the jacking structure comprises a jacking piece, the jacking piece is located below the part to be tensioned of the film and distributed along at least one circle close to the outer edge of the part to be tensioned, and the jacking piece upwards jacks the outer edge of the part to be tensioned of the film to tension the film of the part to be tensioned.
In a preferred embodiment, the clamping and fixing structure comprises a cover plate and a plurality of pressing pieces, the cover plate is covered on the membrane material and covers the periphery of the membrane material, the pressing pieces are arranged on the base, the pressing pieces are distributed along the periphery of the cover plate, the cover plate is pressed, and the membrane material under the cover plate is clamped and fixed on the base.
In a preferred embodiment, the clamping and fixing structure further comprises an elastic sealing member, and the elastic sealing member is positioned above the film material pressing part and/or below the film material pressing part and is arranged close to the film material pressing part.
In a preferred embodiment, at least one circle of seal receiving groove is formed in a portion of the base corresponding to the cover plate, and the elastic sealing element is received in the seal receiving groove and partially exposed out of the seal receiving groove.
In a preferred embodiment, the top fastening piece is provided with a plurality of circles, the circles of the top fastening piece are distributed inwards at intervals from the outer edge of the part to be tensioned of the membrane material, and the circles of the top fastening piece correspond to cover plates with different sizes respectively.
In a preferred embodiment, the base is provided with at least one circle of top fastener accommodating grooves for accommodating top fasteners, and the top fasteners are located in the top fastener accommodating grooves and are lifted upwards to be at least partially exposed out of the top fastener accommodating grooves in a working state.
In a preferred embodiment, the top member is an inflation tube inflatable inwardly, and the inflation tube expands in an inflated state upwardly against an outer edge of the portion of the membrane to be tensioned until the portion of the membrane to be tensioned is tensioned.
In a preferred embodiment, the tightening structure further includes an air faucet for providing air, the air faucet is disposed on the base and is communicated with the inflation tube.
In a preferred embodiment, the inflation tube is a rubber tube.
In a preferred embodiment, the inflation tube is applied with 1-5 1.01 × 105And expanding the membrane material after the atmospheric pressure of Pa, and tensioning the membrane material, wherein the thickness of the membrane material is 10-50 mu m.
In another aspect, the present invention provides a directional ultrasound screen, including: the vibrating membrane material is tensioned by the membrane material tensioning device.
Compared with the prior art, the utility model has the following beneficial effects:
1. the membrane material is tensioned through the abutting structure after the periphery of the membrane material is tightly pressed, so that the membrane material is suitable for membrane pasting in the field of directional ultrasonic screens.
2. The tightening degree of the tightening piece of the utility model to the vibration film material is adjustable, thereby being capable of uniformly and effectively controlling the surface tension of the vibration film material.
3. The utility model is suitable for tensioning membrane materials with various sizes by arranging a plurality of circles of top fastening pieces, wherein each circle of top fastening piece corresponds to a cover plate with one size.
Description of the drawings:
FIG. 1 is a schematic perspective view of a film tensioning device according to the present invention;
FIG. 2 is a schematic view of a split structure of the film material tensioning device of the present invention;
FIG. 3 is a schematic structural view of the film material tensioning device provided with a plurality of circles of the inflation tube according to the present invention;
FIG. 4 is a schematic cross-sectional view of the membrane material of the present invention pressed and fixed on the base;
FIG. 5 is a schematic cross-sectional view of the membrane material of the present invention after being tensioned.
The reference signs are:
1. the base, 2, press from both sides tight fixed knot structure, 21, apron, 22, compress tightly the piece, 23, elastic sealing spare, 24, sealed holding tank, 3, the tight structure in top, 31, the tight piece in top, 32, the tight piece holding tank in top, 33, air cock, 4, membrane material, 41, compress tightly the part, 42, treat the tensioning part.
The specific implementation mode is as follows:
the following detailed description of specific embodiments of the utility model is provided, but it should be understood that the scope of the utility model is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Referring to fig. 1 and 2, a film tensioning device of the present invention includes a base 1, a clamping and fixing structure 2, and a tightening structure 3. Wherein, treat the tensioning membrane material 4 and bear on base 1, press from both sides tight fixed knot structure 2 and be used for pressing from both sides the tight fixed 4 all around of membrane material of fixing, push up tight structure 3 and be used for with the tensioning of membrane material 4 uncompacted part.
Specifically, in this embodiment, the clamping and fixing structure 2 includes a cover plate 21 and a plurality of pressing members 22, wherein the cover plate 21 is a hollow frame structure, and covers the membrane material 4 on the base 1 to cover the periphery of the membrane material 4, and the part of the membrane material 4 not covered by the cover plate 21 is the part of the membrane material 4 to be tensioned, so for convenience of description, the periphery of the membrane material 4 pressed by the cover plate 21 is defined as a pressing part 41, and the part of the membrane material 4 not pressed by the cover plate 21 and located in the periphery is defined as a part 42 to be tensioned. The utility model does not require the size (such as width) of the film material pressing part 41, of course, the narrower the width, the higher the utilization rate of the film material 4, but the too narrow width can not play a good role in pressing and fixing the periphery of the film material 4, so the utility model needs to be set according to the actual situation as long as the periphery of the film material 4 can be well pressed and fixed on the base 1. In addition, the size of the portion to be tensioned 42 of the film 4 is larger than the size of another film or glass to be bonded body to be bonded with the film 4.
A plurality of compressing members 22 are arranged on the base 1, and the plurality of compressing members 22 are distributed along the periphery of the cover plate 21 to compress the cover plate 21, and the film material 4 under the cover plate 21 is clamped and fixed on the base 1. Preferably, at least two sides of each side of the cover plate 21 are respectively provided with a pressing member 22, and the number of the pressing members 22 arranged on each side of the cover plate 21 is not limited in the present invention. If the size of the film material 4 is small, a pressing piece 22 is respectively arranged on each side of the cover plate 21 to play a good clamping role on the film material 4, however, if the size of the film material 4 is large, namely the length and the width of the film material 4 are long, if only one pressing piece 22 is arranged on each side, the periphery of the film material 4 cannot be well fixed, and therefore, a plurality of pressing pieces 22 are preferably arranged on each side of the cover plate 21. In practice, the pressing member 22 may be a horizontal clamp, and the clamp is fixed to the side of the base 1 by a screw (not shown) or the like.
Of course, the clamping and fixing structure 2 of the present invention is not limited to the structure comprising the cover plate 21 and the plurality of pressing members 22, and the present invention is applicable to the fixing structure that can press and fix the periphery of the cover plate 21 to the base 1.
Preferably, in order to increase the damping of the clamping and fixing structure 2 to press the film 4, the clamping and fixing structure 2 of the present invention further includes an elastic sealing member 23, in practice, the elastic sealing member 23 may be located above the film pressing portion 41, specifically, may be located on the cover plate 21, or may also be located below the film pressing portion 41, specifically, may be located on the base 1, or may be located above or below the film pressing portion 41, and the elastic sealing member 23 is located close to the film pressing portion 41. In this embodiment, the elastic sealing member 23 is a sealing strip, and the elastic sealing member 23 is located below the film pressing portion 41. Specifically, the part of the base 1 corresponding to the cover plate 21 is provided with at least one circle of sealing accommodating groove 24 for accommodating the elastic sealing element 23, each circle of sealing accommodating groove 24 accommodates one sealing strip, most of the sealing strips are accommodated in the sealing accommodating groove 24, the tops of the sealing strips are exposed out of the sealing accommodating groove 24, and the exposed parts of the sealing strips are attached to the film pressing part 41 tightly, so that when the pressing part 22 presses the cover plate 21 downwards, due to the existence of the sealing strips, the buffering damping between the cover plate 21 and the film 4 can be increased, and the film 4 is prevented from being easily damaged in the pressing process. Of course, the present invention is not limited to the material and the installation position of the elastic sealing member 23, and the present invention can be applied to any sealing structure as long as the sealing structure can increase the damping of the clamping and fixing structure 2 to compress the film material 4.
Specifically, the tightening structure 3 includes a tightening member 31, wherein the tightening member 31 is located below the portion to be tightened 42 of the film material and is distributed along at least one turn near the outer edge of the portion to be tightened 42, and the film material of the portion to be tightened 42 is tightened by pushing the tightening member 31 upward against the outer edge of the portion to be tightened 42 of the film material 4. In this embodiment, the tightening member 31 is disposed on the base 1, specifically, at least one circle of tightening member accommodating grooves 32 for accommodating the tightening member 31 is disposed on the base 1 corresponding to the area of the to-be-tensioned portion 42 of the film, and the tightening member accommodating grooves 32 are distributed near the outer edge of the to-be-tensioned portion 42 of the film (i.e., the inner edge of the cover plate). As shown in FIG. 3, preferably, a plurality of loops of the fastening member receiving groove 32 are provided on the base 1, the plurality of loops of the fastening member receiving groove 32 being spaced inwardly from the outer edge of the portion 42 of the film to be tensioned on the base 1, and a fastening member 31 is received in each loop of the fastening member receiving groove 32. The top fastening member 31 is located in the top fastening member receiving groove 32 in an inoperative state, and is lifted upwards in an operative state so that at least the top fastening member 31 is partially exposed out of the top fastening member receiving groove 32, and the exposed part is used for lifting and tensioning the film 4 on the base 1. Each circle of top tight piece holding tank 32 corresponds to a specification and size's apron 21, specifically, when top tight piece holding tank 32 is close to the setting to the base 1 inboard more, explains that membrane material 4 size is reduced relatively, then corresponding apron 21 size also reduces thereupon, on the contrary, when top tight piece holding tank 32 is close to the setting to the base 1 outside more, explains that membrane material 4 size is increased relatively, then corresponding apron 21 size is bigger. Of course, the cover plate 21 may be configured to have an adjustable size to accommodate different sizes of the tightening members 31.
In this embodiment, the tightening member 31 is specifically an inflation tube that can be inflated inward, and is further specifically a pressure rubber tube. In addition, the tightening structure 3 of this embodiment further includes an air faucet 33 for providing air, the air faucet 33 is disposed on the base 1 and is communicated with the inflation tube, and specifically, the air faucet 33 and the inflation tube can be communicated by disposing a corresponding through hole (not shown) on the base 1. When the device works, the pressure rubber tube is inflated through the air nozzle 33, so that the pressure rubber tube is expanded, and the surface of the membrane material 4 is tensioned. Preferably, the air pressure of the air inflation tube is adjustable, so that the surface tension of the diaphragm material 4 is uniformly and effectively controlled. The utility model is not limited to the structure of the inflation tube defined herein, and other structures that can jack up and tension the membrane material 4 can be applied to the utility model. Preferably, in this embodiment, the air pressure applied to the air tube is in the range of 1-5 air pressure, 1.01 × 10 air pressure5Pa, and the thickness of the tensioned membrane material 4 is 10-50 μm.
Referring to fig. 4 and 5, the working principle of the film material tensioning device of the present invention is specifically as follows: the membrane material 4 is placed on the upper surface of the base 1, the cover plate 21 is covered, and the periphery of the membrane material 4 is tightly pressed and fixed between the cover plate 21 and the base 1 through the pressing piece 22. After the membrane material 4 is fixed and compressed, the pressure rubber tube is inflated through the air nozzle 33, the pressure rubber tube expands after being inflated, and the periphery of the membrane material 4 is clamped by the cover plate 21 and the base 1, so that the expanded pressure rubber tube can tension the surface of the part 42 of the membrane material to be compressed. At this time, a glass substrate (not shown) is placed on the portion to be compressed 42 of the membrane material after tensioning, and the vibration membrane material 4 of the directional ultrasonic screen is attached to the glass substrate.
The utility model has the advantages that: 1. through 4 tensioning of making 4 tensioning of membrane material through the tight structure 3 in top after compressing tightly all around with membrane material, be applicable to the pad pasting in directional ultrasonic screen field, in addition, because 4 tensioning of membrane material improve drive efficiency to produce higher sound pressure level. 2. The tightening degree of the tightening piece 31 of the utility model to the vibration film material 4 can be adjusted, thereby the surface tension of the vibration film material 4 can be uniformly and effectively controlled. 3. By arranging multiple rings of top members 31, each ring of top members 31 corresponds to one size of cover plate 21, the tensioning of the membrane 4 with multiple sizes can be applied.
The utility model also discloses a directional ultrasonic screen which comprises the vibrating membrane material 4, wherein the vibrating membrane material 4 is tensioned by the membrane material tensioning device.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (10)
1. A membrane tensioning device, comprising:
the film material to be tensioned is arranged on the base;
the periphery of the membrane material is clamped and fixed on the base through the clamping and fixing structure, and the membrane material is divided into a peripheral pressing part and a part to be tensioned, wherein the peripheral pressing part is positioned in the periphery;
the jacking structure comprises a jacking piece, the jacking piece is located below the part to be tensioned of the film and distributed along at least one circle close to the outer edge of the part to be tensioned, and the jacking piece upwards jacks the outer edge of the part to be tensioned of the film to tension the film of the part to be tensioned.
2. The film tensioning device according to claim 1, wherein the clamping and fixing structure comprises a cover plate and a plurality of pressing members, the cover plate is covered on the film and covers the periphery of the film, the pressing members are arranged on the base, the plurality of pressing members are distributed along the periphery of the cover plate, and the cover plate is pressed to clamp and fix the film below the cover plate on the base.
3. The film tensioning device of claim 2, wherein the clamping fixture further comprises a resilient seal positioned above and/or below the film clamping portion and positioned against the film clamping portion.
4. The film tensioning device according to claim 3, wherein the portion of the base corresponding to the cover plate is provided with at least one circle of sealing receiving groove for receiving the elastic sealing element, and the elastic sealing element is received in the sealing receiving groove and partially exposed out of the sealing receiving groove.
5. The film tensioning device according to claim 2, wherein the top member is provided with a plurality of turns, the plurality of turns of the top member are spaced inwardly from an outer edge of the portion of the film to be tensioned, and the plurality of turns of the top member correspond to cover plates of different sizes, respectively.
6. The film tensioning device of claim 1, wherein the base includes at least one loop of tightening member receiving slots for receiving tightening members, the tightening members being located within the tightening member receiving slots and being upwardly biased to be at least partially exposed by the tightening member receiving slots in the operating position.
7. The film tensioning device according to claim 1 or 5, wherein the tightening member is an inwardly inflatable inflation tube which in an inflated state expands upwardly against the outer edge of the portion of the film to be tensioned until the film of the portion to be tensioned is tensioned.
8. The film tensioning device of claim 7, wherein the tightening structure further comprises a gas nozzle for providing gas, the gas nozzle is disposed on the base and is in communication with the gas-filled tube.
9. The film tensioning device of claim 7, wherein 1-5 inflatable tubes are applied to the film, and the number of inflatable tubes is 1.01 x 105And expanding the membrane material after the atmospheric pressure of Pa, and tensioning the membrane material, wherein the thickness of the membrane material is 10-50 mu m.
10. A directional ultrasound screen, characterized in that it comprises a vibrating membrane material, said vibrating membrane material being tensioned by a membrane tensioning device according to any of the preceding claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121827928.9U CN215945013U (en) | 2021-08-06 | 2021-08-06 | Membrane material overspeed device tensioner and directional ultrasonic screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121827928.9U CN215945013U (en) | 2021-08-06 | 2021-08-06 | Membrane material overspeed device tensioner and directional ultrasonic screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215945013U true CN215945013U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121827928.9U Active CN215945013U (en) | 2021-08-06 | 2021-08-06 | Membrane material overspeed device tensioner and directional ultrasonic screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215945013U (en) |
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2021
- 2021-08-06 CN CN202121827928.9U patent/CN215945013U/en active Active
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