CN116161460A - Negative pressure adsorption component - Google Patents

Abstract

The invention relates to a negative pressure adsorption assembly, which comprises a negative pressure generating head and an adsorption head connected with the negative pressure generating head, and the two ends of the negative pressure generating head are respectively a negative pressure end and an exhaust end. The pressure generating head has an air channel running through between the negative pressure end and the exhaust end, the inner wall of the air channel is provided with an air outlet, and the negative pressure generating head is also provided with a high-pressure air channel for feeding compressed gas, The end of the high-pressure air channel is connected to the air outlet, and the shape and/or orientation of the air outlet are configured so that the compressed gas flowing out from the air outlet flows out to the exhaust end so that the gas at the negative pressure end To generate negative pressure, the adsorption head includes an extended block, and a negative pressure connection port connected to the negative pressure end of the negative pressure generating head is opened in the block. The negative pressure is formed by compressing the gas, reducing the cost and time of workshop transformation. Moreover, the negative pressure generated is softer and less likely to damage the diaphragm.

Description

A negative pressure adsorption component

technical field

The invention belongs to the field of optical film manufacturing, and relates to a negative pressure adsorption component, which is used for absorbing the optical film for transfer, and can cooperate with a manipulator.

Background technique

Optical film is used in various displays, such as televisions, computers, mobile phones, instruments, etc. It needs to be transferred during the production process. Because it is relatively light and thin, the usual transfer method is to absorb it by a robot and transfer it to other place.

Usually, the adsorption mechanism in the manipulator is to adsorb the diaphragm through the vacuum suction head. The usual production workshop is equipped with an air compressor, and the compressed gas generated by the air compressor is supplied to each production operation point. If a negative pressure adsorption mechanism is used, a separate negative pressure system (adsorption through vacuum) is required, which increases the cost of the workshop and requires a long period of time to renovate the production workshop in the early stage.

Contents of the invention

The purpose of the present invention is to provide a negative pressure adsorption component, which solves the problem of how to carry out adsorption and transfer of a membrane without a negative pressure system.

In order to achieve the above object, the technical scheme adopted in the present invention is:

The invention provides a negative pressure adsorption assembly, which includes a negative pressure generating head and an adsorption head connected to the negative pressure generating head, and the two ends of the negative pressure generating head are respectively a negative pressure end and an exhaust end, The negative pressure generating head has an air channel running through between the negative pressure end and the exhaust end, the inner wall of the air channel is provided with an air outlet, and a high pressure air channel for feeding compressed gas is also arranged in the negative pressure generating head , the end of the high-pressure air passage is connected to the air outlet, and the shape and/or orientation of the air outlet are configured so that the compressed gas flowing out from the air outlet flows out to the exhaust end so that the negative pressure The suction head includes an extended block, and a negative pressure connection port connected to the negative pressure end of the negative pressure generating head is opened in the block.

Preferably, the air outlet hole extends in at least one circle in the inner wall of the air passage.

Further, the top wall of the air outlet near the exhaust end extends obliquely toward the exhaust end.

Furthermore, the bottom wall of the air outlet away from the exhaust end is a plane perpendicular to the axial direction of the air channel.

Further, the top wall of the outlet hole close to the exhaust end extends in an arc with a gradually increasing slope toward the exhaust end.

Preferably, an adsorption groove extending inward from the surface is opened in the block, at least part of the bottom of the adsorption groove extends inward to form a negative pressure channel, and the negative pressure connection port communicates with the negative pressure channel to provide negative pressure. pressure, the negative pressure channel extends along the bottom surface of the adsorption tank to the side wall of the adsorption tank and extends outward along the side wall, and the negative pressure channel extending in the side wall of the adsorption tank is long enough to make the When at least one diaphragm is adsorbed on the bottom surface of the adsorption tank, the next diaphragm can be adsorbed by using the negative pressure channel in the side wall of the adsorption tank.

Further, the negative pressure channel is in the state of opening to the adsorption groove as a whole on the side wall of the adsorption groove.

Further, the bottom surface and the side wall surface of the adsorption tank are respectively provided with a first support bar and a second support bar arranged side by side, and the negative pressure channel is adjacent to the first support bar or adjacent to the second support bar. extending between the support bars.

Furthermore, the spaces between the first support bars are interconnected to form the negative pressure channel.

Preferably, the negative pressure channels are provided at the corners of the side walls of the adsorption tank.

Due to the use of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:

The negative pressure adsorption assembly of the present invention passes compressed gas into the high-pressure air channel of its negative pressure generating head, and the compressed gas enters the air channel after passing through the air outlet and flows out to the exhaust end, forming a rapid air flow in the air channel, due to the Bernoulli principle , a negative pressure is formed in the air passage, and the negative pressure is transmitted to the suction head through the negative pressure end of the negative pressure generating head, and the suction head uses the negative pressure to adsorb the diaphragm. Moreover, the negative pressure generated in this way is softer and less likely to damage the diaphragm. And by adjusting the flow rate (or pressure) of the compressed gas to adjust the size of the generated negative pressure. In addition, the compressed air can be provided by the air compressor equipped in the production workshop, and the transformation cost and transformation time of the workshop are relatively small.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural view (with perspective) of a preferred embodiment of the present invention;

Figure 2 is an enlarged view of A in Figure 1;

Fig. 3 is a three-dimensional schematic diagram of the negative pressure generating head in Fig. 1;

Fig. 4 is a three-dimensional schematic diagram of the adsorption head in Fig. 1;

Fig. 5 is a bottom view of the adsorption head in Fig. 1;

Fig. 6 is a schematic diagram of the suction head in Fig. 1 absorbing multiple diaphragms;

Wherein, the reference signs are explained as follows:

1. Negative pressure generating head; 11. Negative pressure end; 12. Exhaust end; 13. Air passage; 14. Air outlet hole; 15. High pressure air passage;

2. Adsorption head; 21. Block; 211. Side wall; 22. Negative pressure connection port; 23. Adsorption tank; 231. Bottom surface; 24. Negative pressure channel; 25. First support bar; 26. Second support bar ; 27, connected slot; 28, missing slot;

3. Diaphragm.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

As shown in FIG. 1 , the negative pressure adsorption assembly includes two parts: a negative pressure generating head 1 and a suction head 2 . Wherein, the negative pressure generating head 1 utilizes compressed gas to generate negative pressure, and the adsorption head 2 is connected with the negative pressure generating head 1 and utilizes the negative pressure to adsorb the diaphragm 3 . As shown in Fig. 6, an adsorption groove 23 is provided in the adsorption head 2, and the diaphragm 3 is attracted into the adsorption groove 23, and multiple diaphragms 3 can be adsorbed in the adsorption groove 23 at the same time, and the diaphragms 3 are embedded in the adsorption groove 23 in a stacked manner. Inside.

As shown in FIG. 1 , the two ends of the negative pressure generating head 1 are a negative pressure end 11 and an exhaust end 12 respectively. The lower end is the negative pressure end 11, and the upper end is the exhaust end 12. As shown in FIG. 3 , the negative pressure generating head 1 is in the shape of a ring, and is provided with an air passage 13 running through between the negative pressure end 11 and the exhaust end 12 . As shown in Fig. 1 and Fig. 2, a high-pressure air channel 15 is arranged in the negative pressure generating head 1, and the high-pressure air channel 15 is used to feed compressed gas, and the high-pressure air channel 15 is located in the wall of the upper half of the negative pressure generating head 1, so that The wall at the place is thicker to accommodate the high-pressure air passage 15. The end of the high-pressure air channel 15 is connected to the air outlet hole 14 on the inner wall of the air channel 13 . The high-pressure gas in the high-pressure air channel 15 is released into the air channel 13 through the air outlet 14 . The air outlet hole 14 is annular and extends in a circle on the inner wall of the air channel 13 .

As shown in FIG. 2 , the air outlet hole 14 has a flared cross-sectional shape and is biased toward the exhaust end 12 . Due to Bernoulli's principle, a negative pressure can be formed in the air passage 13, and the air pressure in the space above the air outlet 14 is smaller than the air pressure in the space below the air outlet 14. The air flow at the negative pressure end 11 at the lower end is due to normal atmospheric pressure, the air flow here will be attracted to the upper half space of the air passage 13, and the gas in the adsorption head 2 connected with the negative pressure end 11 will also flow to the air passage 13.

As shown in Figure 2, the top wall of the air outlet 14 (the part indicated by B in Figure 2), that is, the top wall near the upper exhaust end 12 is inclined toward the exhaust end 12, and is an arc-shaped extension with a gradually increasing slope . The bottom wall of the outlet hole 14 (pointed by C in FIG. 2 ), that is, the bottom wall away from the upper exhaust end 12 is a horizontally extending plane, that is, a plane perpendicular to the axial direction of the air passage 13 . Such a structure makes the airflow released from the air outlet hole 14 flow to the upper exhaust end 12 .

In other embodiments, the shape or orientation of the air outlet hole 14 may also be in other forms, so that the airflow flowing out of the air outlet hole 14 flows upward. For example, the air outlet hole 14 may be an air channel extending upwards as a whole (that is, both the top wall and the bottom wall of the air outlet hole 14 extend upwards obliquely).

The reason why the airflow released from the air outlet hole 14 flows upward is to prevent the airflow from flowing downward into the adsorption head 2 , thereby affecting the flow of the airflow in the adsorption head 2 to the negative pressure generating head 1 . And the exhaust end 12 at the upper end can be connected with the atmosphere to receive the exhausted airflow. In fact, if the air flow in the air passage 13 is in other directions, such as horizontal flow, a negative pressure can also be formed in the air passage 13 to attract the gas in the adsorption head 2 .

In this example, the air outlet holes 14 extend in one circle on the inner wall of the air channel 13 , and in other embodiments, there may be more than two circles, and the air channels 13 with more than two circles are distributed along the axial direction in the air channel 13 . In this example, the air outlet hole 14 extends in a circle, and in other embodiments, it may also be opened in the air passage 13 at multiple points.

As shown in Figure 1, the adsorption head 2 includes an extended block 21, which is extended into a plate shape. As shown in Figure 6, the extended plate shape matches the shape of the diaphragm 3, thereby facilitating the adsorption of the diaphragm 3. .

As shown in Figure 1, a negative pressure connection port 22 is opened on the upper surface of the block 21, and the negative pressure connection port 22 is connected to the negative pressure end 11 and communicated with the air channel 13, so that the air flow can flow to the negative pressure center, that is, the air channel 13 upper part of the space. The lower surface of the block body 21 is provided with an adsorption groove 23 communicating with the negative pressure connection port 22 . The diaphragm 3 is sucked into the adsorption groove 23 by negative pressure.

As shown in FIG. 4 and FIG. 5 , the adsorption groove 23 extends from the lower surface of the block 21 (ie, the lower surface in FIG. 1 ) to the inside of the block 21 . At least part of the bottom surface 231 of the adsorption groove 23 extends inward to form a negative pressure channel 24 . First support bars 25 arranged side by side are also formed between the negative pressure channels 24 , that is, the space between the first support bars 25 is the negative pressure channel 24 . The negative pressure channel 24 communicates with the negative pressure connection port 22 . The first support strips 25 are juxtaposed and parallel to extend on the bottom surface of the adsorption groove 23 . The bottom surface 231 of the adsorption groove 23 is also provided with a communication groove 27, and the communication groove 27 runs through all the first support bars 25 transversely, so that the space between the adjacent first support bars 25 is communicated, so that the space between the first support bars 25 All gaps serve as part of the negative pressure channel 24 . The first support bar 25 is used to support the membrane 3 .

As shown in Figure 5, two first support bars 25 adjacent to the edge of the negative pressure connection port 22 are provided with a transverse gap 28, and the position of the gap 28 is set corresponding to the negative pressure connection port 22, which makes the negative pressure channel 24 The air flow flows to the negative pressure connection port 22 faster.

As shown in FIG. 4 and FIG. 5 , the negative pressure channel 24 extends along the bottom surface 231 of the adsorption groove 23 to the side wall 211 of the block 21 and extends into the side wall 211 . And extend in the direction of the outer end in the side wall 211 , and extend to the outer end of the side wall 211 all the time. Moreover, negative pressure passages 24 are distributed on a circle of side walls 211 . And the negative pressure channels 24 in the side wall 211 are distributed side by side. A second support bar 26 is formed between adjacent negative pressure channels 24 , and the second support bar 26 is used to support the periphery of the diaphragm 3 .

In this example, although the second support bar 26 extends from the inside to the outside on the side wall 211 , in other ways, it can also extend horizontally or in other directions.

In this example, although the negative pressure channel 24 in the side wall 211 extends all the way to the outer end of the side wall 211 , in other embodiments, it may not extend to the outer end.

The negative pressure channel 24 in the side wall 211 enables the negative pressure in the negative pressure generating head 1 around the side wall 211 to form an airflow, and the entire thickness of the sidewall 211 can form an airflow. The airflow of the side wall 211 can also adsorb the membrane 3 again when the membrane 3 is adsorbed in the adsorption groove 23 . The principle is shown in Figure 6.

As shown in FIG. 6 , after the membrane 3 is adsorbed in the adsorption groove 23 , the next membrane 3 can be adsorbed by using the negative pressure channel 24 in the side wall 211 .

The negative pressure passage 24 in the side wall 211 is long enough, so that after the membrane 3 is adsorbed in the adsorption groove 23, the negative pressure passage 24 still has an exposed part, so that air flow is generated in the remaining space of the adsorption groove 23, thereby adsorbing The next diaphragm 3. When the negative pressure channel 24 in the side wall 211 is the shortest, the exposed portion can still be exposed when a piece of membrane 3 is absorbed in the suction groove 23 and is sufficient to attract the next piece of membrane 3 .

In this example, the negative pressure channel 24 in the side wall 211 is entirely open to the adsorption groove 23 . In other embodiments, the negative pressure channel 24 in the side wall 211 can also communicate with the adsorption groove 23 through multiple openings. A plurality of openings are distributed on the sidewall 211 along the depth direction of the adsorption groove 23 .

As shown in Figure 6, the four corners of the adsorption groove 23, that is, the corners of the side wall 211, are all provided with negative pressure passages 24, that is, the position indicated by D in Figure 6, so that the corners of the adsorption groove 23 are also formed Negative pressure is beneficial to make the four corners of the diaphragm 3 adhere to the suction groove 23 and can also prevent the diaphragm 3 from being deformed.

The suction head 2 of this example can simultaneously absorb multiple pieces of membranes 3 , so that multiple pieces of membranes 3 can be transported at one time, which improves the transport efficiency. And in the prior art, as Chinese patent " CN217126233U ", " CN210253949U ", " CN112590349A ", the suction head all can only absorb a diaphragm.

And in this example, the negative pressure generating head 1 utilizes Bernoulli's principle to generate negative pressure, which can utilize the existing compressed gas generating system in the production workshop, and does not need to configure a separate vacuum system, so the transformation of the workshop is small and can be quickly applied.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention. Equivalent changes or modifications made in the spirit shall fall within the protection scope of the present invention.

Claims (10)

1. Negative pressure adsorption component, it includes negative pressure production head (1) and is connected with absorption head (2) that negative pressure produced head (1), its characterized in that: the negative pressure generating head is characterized in that two ends of the negative pressure generating head (1) are a negative pressure end (11) and an exhaust end (12) respectively, the negative pressure generating head (1) is provided with an air passage (13) penetrating between the negative pressure end (11) and the exhaust end (12), an air outlet (14) is formed in the inner wall of the air passage (13), a high-pressure air passage (15) for introducing compressed gas is further formed in the negative pressure generating head (1), the tail end of the high-pressure air passage (15) is connected with the air outlet (14), and the shape and/or orientation of the air outlet (14) are configured to enable compressed gas flowing out from the air outlet (14) to flow out to the exhaust end (12) so as to generate negative pressure at the negative pressure end (11), and the adsorption head (2) comprises an extended block (21), and a negative pressure (22) connected with the negative pressure end (11) of the negative pressure generating head (1) is formed in the block (21).

2. The negative pressure adsorption assembly of claim 1, wherein: the air outlet holes (14) extend into at least one circle in the inner wall of the air passage (13).

3. The negative pressure adsorption assembly of claim 2, wherein: the outlet holes (14) extend obliquely toward the exhaust end (12) near the top wall of the exhaust end (12).

4. A negative pressure suction assembly according to claim 3, wherein: the bottom wall of the air outlet hole (14) far away from the air outlet end (12) is a plane perpendicular to the axial direction of the air passage (13).

5. A negative pressure suction assembly according to claim 3, wherein: the top wall of the air outlet hole (14) close to the air outlet end (12) extends towards the air outlet end (12) in an arc shape with gradually increased inclination.

6. The negative pressure adsorption assembly of claim 1, wherein: the block body (21) is internally provided with an adsorption groove (23) extending inwards from the surface, at least part of the bottom surface of the adsorption groove (23) is internally extended to form a negative pressure channel (24), the negative pressure connection port (22) is communicated with the negative pressure channel (24) to provide negative pressure, the negative pressure channel (24) extends to the side wall of the adsorption groove (23) along the bottom surface of the adsorption groove (23) and extends outwards along the side wall, and the negative pressure channel (24) extending in the side wall of the adsorption groove (23) is long enough to enable the next membrane (3) to be adsorbed by the negative pressure channel (24) in the side wall of the adsorption groove (23) under the condition that at least one membrane (3) is adsorbed on the bottom surface of the adsorption groove (23).

7. The negative pressure suction assembly of claim 6, wherein: the negative pressure passage (24) is entirely open to the suction tank (23) on the side wall of the suction tank (23).

8. The negative pressure suction assembly of claim 6, wherein: the bottom surface and the side wall surface of the adsorption groove (23) are respectively provided with a first supporting bar (25) and a second supporting bar (26) which are distributed in parallel, and the negative pressure channel (24) extends between the adjacent first supporting bars (25) or the adjacent second supporting bars (26).

9. The negative pressure suction assembly of claim 8, wherein: the spaces between the first support bars (25) are mutually communicated so as to form the negative pressure channel (24).

10. The negative pressure adsorption assembly of claim 1, wherein: the corners of the side walls of the adsorption grooves (23) are respectively provided with the negative pressure channels (24).

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