An inverted plastic bottle cap

Abstract

This invention belongs to the technical field of semiconductor equipment adhesive supply systems, specifically an inverted adhesive bottle cap, including an air inlet connector, an adhesive outlet connector, an inner cap, and an outer cap. The inner cap is divided into a connector connecting part and an outer cap connecting part connected together from bottom to top. The inner cap has gas flow channels and adhesive flow channels respectively opened inside. The outer cap is installed on the outside of the outer cap connecting part, and the top of the outer cap has a threaded hole for connecting the adhesive bottle. The threaded hole communicates with another opening of the gas flow channel and another opening of the adhesive flow channel on the top surface of the outer cap connecting part. This invention, through the inverted adhesive bottle cap structure formed by the cooperation of the inner and outer caps, allows the adhesive bottle to be inverted for adhesive supply after connection, enabling the photoresist in the bottle to be almost completely discharged under gravity, effectively reducing photoresist waste. Furthermore, the structure is simpler and easier to disassemble and maintain.

Description

Technical Field

[0001] This invention belongs to the technical field of semiconductor equipment adhesive supply systems, specifically an inverted adhesive bottle cap. Background Technology

[0002] Existing technology uses bottle caps as components for mating photoresist bottles, such as... Figure 1 and Figure 2 As shown, it generally consists of a mounting block 001 connected to the nozzle of the glue bottle, an air inlet connector 002, and a glue outlet connector 003. The glue bottle cap assembles with the glue bottle to ensure a seal. A connecting tube extending to the bottom of the glue bottle needs to be inserted into the glue outlet of the mounting block 001. Gas is introduced through the air inlet connector 002, creating a pressure difference between the inside and outside of the glue bottle, forcing the photoresist out from the connecting tube through the glue outlet connector 003. The glue bottle can then be connected to the glue supply system using the glue bottle cap.

[0003] The cap of this type of glue bottle is usually installed on the upright glue bottle. When the level of photoresist is lower than the bottom opening of the connecting tube, it is difficult to extract the photoresist from the glue bottle, resulting in residual photoresist in the glue bottle and thus wasting the photoresist. Summary of the Invention

[0004] To address the problem that the existing glue bottle cap structure, which is mounted on an upright glue bottle, makes it difficult to completely eject the photoresist from the glue bottle, the present invention aims to provide an inverted glue bottle cap.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] An inverted glue bottle cap includes an air inlet connector and a glue outlet connector, and also includes an inner cap and an outer cap;

[0007] The inner cover is divided into a connector connection part and an outer cover connection part connected together from bottom to top. The inner cover has a gas flow channel and an adhesive flow channel respectively. The gas flow channel has two openings. One opening of the gas flow channel is located on the outer side of the connector connection part and is connected to an air inlet connector. The other opening of the gas flow channel is located on the top surface of the outer cover connection part and is connected to another air inlet connector. The adhesive flow channel has two openings. One opening of the adhesive flow channel is located on the outer side of the connector connection part and is connected to an adhesive outlet connector. The other opening of the adhesive flow channel is located on the top surface of the outer cover connection part.

[0008] The outer cover is installed on the outside of the outer cover connecting part. The top of the outer cover has a threaded hole for connecting the glue bottle. The threaded hole is connected to another opening of the gas flow channel and another opening of the glue flow channel on the top surface of the outer cover connecting part.

[0009] A sealing gasket is provided between the inner side of the outer cover and the top surface of the outer cover connection part.

[0010] The outer cover is divided into an outer cover body and an outer cover notch block. An installation notch is provided on one side of the outer cover body. The outer cover notch block is inserted into the installation notch and connected to the outer cover body to form the outer cover. A connecting cavity is formed on the inner side of the outer cover that matches the external shape of the outer cover connecting part. The threaded hole is opened on the top surface of the outer cover body.

[0011] The outer cover body and the outer cover notch block are connected by several sets of matching connecting bolts and fixing nuts.

[0012] The connecting bolts and fixing nuts are provided in two sets, and the two sets of connecting bolts and fixing nuts are respectively provided on the left and right sides of the threaded hole.

[0013] The lower part of the outer peripheral surface of the outer cover connecting part is provided with a diameter reduction limiting annular groove, and the lower part of the inner side of the connecting cavity is provided with an annular limiting stop edge that matches the diameter reduction limiting annular groove.

[0014] The axial centerline of the other opening of the gas flow channel, the axial centerline of the other opening of the adhesive flow channel, and the axial centerline of the threaded hole are all perpendicular to the horizontal plane.

[0015] The axial center lines of the outer cover, the inner cover, and the threaded hole are all collinear.

[0016] The outer cover has a degree of freedom to rotate axially about the vertical direction relative to the inner cover.

[0017] The height of one end of the other air inlet connector, away from the top surface of the outer cover connection, is higher than the height of the other opening of the adhesive flow channel.

[0018] The advantages and positive effects of this invention are as follows:

[0019] This invention features an inverted glue bottle cap structure consisting of an inner cap and an outer cap. When connected to a glue bottle, the glue bottle is inverted for glue supply, allowing the photoresist in the bottle to be almost completely discharged under gravity, effectively reducing photoresist waste. Furthermore, the structure is simpler and easier to disassemble and maintain. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of a plastic bottle cap in the prior art;

[0021] Figure 2 A schematic diagram of the internal structure of a plastic bottle cap in the prior art;

[0022] Figure 3This is a schematic diagram of the disassembled structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 5 This is a schematic diagram illustrating the usage state of the present invention.

[0025] In the diagram: 1 is the inner cover, 101 is the connector connection part, 102 is the outer cover connection part, 103 is the gas flow channel, 104 is the adhesive flow channel, 2 is the outer cover, 201 is the outer cover body, 202 is the outer cover notch block, 203 is the threaded hole, 3 is the sealing gasket, 4 is the connecting bolt, and 5 is the fixing nut; 001 is the mounting block, 002 is the air inlet connector, 003 is the adhesive outlet connector, and 004 is the adhesive bottle. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 3-5 The present invention will be described in further detail below.

[0027] An inverted plastic bottle cap, such as Figure 3-5 As shown, this embodiment includes an air inlet connector 002 and an adhesive outlet connector 003, as well as an inner cover 1 and an outer cover 2.

[0028] The inner cover 1 is divided into a connector connection part 101 and an outer cover connection part 102 connected together from bottom to top. The inner cover 1 has a gas flow channel 103 and an adhesive flow channel 104 respectively. The gas flow channel 103 has two openings: one opening is located on the outer surface of the connector connection part 101 and connected to an air inlet connector 002; the other opening is located on the top surface of the outer cover connection part 102 and connected to another air inlet connector 002. The adhesive flow channel 104 has two openings: one opening is located on the outer surface of the connector connection part 101 and connected to an adhesive outlet connector 003; the other opening is located on the top surface of the outer cover connection part 102. In this embodiment, the connector connection part 101 and the outer cover connection part 102 are an integral structure, which is convenient to manufacture; the connector connection part 101 is connected to the equipment, and the connection method can adopt existing technology. In this embodiment, both the air inlet connector 002 and the photoresist outlet connector 003 are commercially available products, and the connection method is the prior art. The air inlet connector 002 is connected to an external air source on the outer side of the connector connection part 101, and the photoresist outlet connector 003 is connected to the equipment that needs to supply photoresist through a pipeline.

[0029] The outer cover 2 is installed on the outside of the outer cover connecting part 102. The top of the outer cover 2 is provided with a threaded hole 203 for connecting the glue bottle. The threaded hole 203 is connected to another opening of the gas flow channel 103 and another opening of the glue flow channel 104 on the top surface of the outer cover connecting part 102.

[0030] Specifically, in this embodiment, the axial center lines of the other opening of the gas flow channel 103, the other opening of the adhesive flow channel 104, and the threaded hole 203 are all perpendicular to the horizontal plane. The axial center lines of the outer cover 2, the inner cover 1, and the threaded hole 203 are all collinear. The height of the other air inlet connector 002, away from the top surface of the outer cover connecting part 102, is higher than the height of the other opening of the adhesive flow channel 104, ensuring smooth flow of adhesive and gas. In this embodiment, the outer cover 2 has a degree of freedom to rotate axially about the vertical direction relative to the inner cover 1. By rotating the outer cover 2, the adhesive bottle 004 can be tightly attached to the upper side of the top surface of the outer cover connecting part 102, and the overall orientation of the adhesive bottle 004 after being connected to the outer cover 2 can be easily adjusted to suit the external working environment.

[0031] Specifically, in this embodiment, a sealing gasket 3 is provided between the inner side of the outer cover 2 and the top surface of the outer cover connecting part 102. By setting the sealing gasket 3, the outer cover 2 and the bottle mouth of the glue bottle 004 can be directly and tightly pressed against the sealing gasket 3, ensuring the sealing effect between the inner side of the outer cover 2 and the top surface of the outer cover connecting part 102, and preventing photoresist leakage.

[0032] Specifically, in this embodiment, the outer cover 2 is divided into an outer cover body 201 and an outer cover notch block 202. An installation notch is provided on one side of the lower outer periphery of the outer cover body 201. The outer cover notch block 202 is inserted into the installation notch and connected to the outer cover body 201 to form the outer cover 2. A connecting cavity is formed on the inner side of the outer cover 2 that matches the external shape of the outer cover connecting portion 102. A threaded hole 203 is provided on the top surface of the outer cover body 201. In this embodiment, a diameter-reducing limiting annular groove is recessed inward on the lower part of the outer periphery of the outer cover connecting portion 102. An annular limiting stop edge, matching the diameter-reducing limiting annular groove, is protruding from the lower part of the inner side of the connecting cavity, serving to vertically limit the connection of the outer cover 2. In this embodiment, the installation notch is a semi-circular annular notch, allowing the outer cover body 201 and the outer cover notch block 202 to be easily installed or separated from the outer cover connecting portion 102 from the side.

[0033] Specifically, in this embodiment, the outer cover body 201 and the outer cover notch block 202 are connected by two sets of matching connecting bolts 4 and fixing nuts 5. The two sets of matching connecting bolts 4 and fixing nuts 5 are respectively set on the left and right sides of the threaded hole 203. The outer cover body 201 and the outer cover notch block 202 are respectively provided with through holes for the connecting bolts 4 to pass through, which makes disassembly and assembly convenient.

[0034] Working principle:

[0035] When assembling the glue bottle cap, first tighten the two air inlet connectors 002 and one glue outlet connector 003 to the corresponding positions on the inner cap 1. Then place the sealing gasket 3 on the top upper surface of the outer cap connecting part 102. Finally, wrap the outer cap body 201 and the outer cap notch block 202 around the outer cap connecting part 102, and connect the outer cap body 201 and the outer cap notch block 202 with the connecting bolts 4 and the fixing nuts 5, so that the inner cap 1 cannot be removed from the inside of the outer cap 2 and the outer cap 2 can rotate freely in the vertical direction.

[0036] When connecting and using the glue bottle 004, first align the threaded hole 203 of the outer cover 2 with the external thread of the glue bottle 004. Rotate the outer cover 2. When the glue bottle mouth contacts the sealing gasket 3, the glue bottle 004 exerts pressure on the sealing gasket 3 and the top surface of the outer cover connection part 102. As the outer cover 2 rotates continuously, the gap between the inner and outer covers decreases continuously, and the glue bottle mouth presses against the sealing gasket 3 until the outer cover 2 can no longer rotate. Then, invert the glue bottle 004 so that the connector connection part 101 is connected and fixed to the equipment. Due to gravity, the photoresist flows entirely to the glue bottle mouth. Gas is injected into the glue bottle 004 through the air inlet connector 002, thereby supplying photoresist to the equipment that needs to be supplied with photoresist. Since the glue bottle cap is connected to the glue bottle 004 and the glue bottle 004 is inverted for glue supply, the photoresist in the glue bottle 004 can be almost completely discharged under gravity, effectively reducing the waste of photoresist.

Claims

1. An inverted glue bottle cap, comprising an air inlet connector (002) and a glue outlet connector (003), characterized in that: It also includes an inner cover (1) and an outer cover (2); The inner cover (1) is divided into a connector connection part (101) and an outer cover connection part (102) connected together from bottom to top. The inner cover (1) has a gas flow channel (103) and an adhesive flow channel (104) respectively. The gas flow channel (103) has two openings. One opening of the gas flow channel (103) is located on the outer side of the connector connection part (101) and is connected to an air inlet connector (002). The other opening of the gas flow channel (103) is located on the top surface of the outer cover connection part (102) and is connected to another air inlet connector (002). The adhesive flow channel (104) has two openings. One opening of the adhesive flow channel (104) is located on the outer side of the connector connection part (101) and is connected to the adhesive outlet connector (003). The other opening of the adhesive flow channel (104) is located on the top surface of the outer cover connection part (102). The outer cover (2) is installed on the outside of the outer cover connecting part (102). The top of the outer cover (2) is provided with a threaded hole (203) for connecting the glue bottle. The threaded hole (203) is connected to another opening of the gas flow channel (103) on the top surface of the outer cover connecting part (102) and another opening of the glue flow channel (104). The outer cover (2) has a degree of freedom to rotate axially about the vertical direction relative to the inner cover (1).

2. The inverted rubber bottle cap according to claim 1, characterized in that: A sealing gasket (3) is provided between the inner side of the outer cover (2) and the top surface of the outer cover connecting part (102).

3. The inverted rubber bottle cap according to claim 1, characterized in that: The outer cover (2) is divided into an outer cover body (201) and an outer cover notch block (202). An installation notch is provided on one side of the outer cover body (201). The outer cover notch block (202) is embedded in the installation notch and connected to the outer cover body (201) to form the outer cover (2). A connecting cavity is formed on the inner side of the outer cover (2) that matches the external shape of the outer cover connecting part (102). The threaded hole (203) is opened on the top surface of the outer cover body (201).

4. The inverted rubber bottle cap according to claim 3, characterized in that: The outer cover body (201) and the outer cover notch block (202) are connected by a number of sets of connecting bolts (4) and fixing nuts (5).

5. An inverted rubber bottle cap according to claim 4, characterized in that: The connecting bolts (4) and fixing nuts (5) are provided in two sets, and the two sets of connecting bolts (4) and fixing nuts (5) are respectively provided on the left and right sides of the threaded hole (203).

6. The inverted rubber bottle cap according to claim 3, characterized in that: The lower part of the outer peripheral surface of the outer cover connecting part (102) is provided with a diameter reduction limiting annular groove, and the lower part of the inner side of the connecting cavity is provided with an annular limiting stop edge that matches the diameter reduction limiting annular groove.

7. The inverted rubber bottle cap according to claim 1, characterized in that: The axial centerline of the other opening of the gas channel (103), the axial centerline of the other opening of the adhesive channel (104), and the axial centerline of the threaded hole (203) are all perpendicular to the horizontal plane.

8. The inverted rubber bottle cap according to claim 1, characterized in that: The axial center lines of the outer cover (2), the inner cover (1), and the threaded hole (203) are all collinear.

9. An inverted rubber bottle cap according to claim 1, characterized in that: The height of one end of the other air inlet connector (002) away from the top surface of the outer cover connection (102) is higher than the height of the other opening of the adhesive flow channel (104).

Images