A vacuum suction pen

Abstract

The present invention discloses a vacuum suction pen, comprising a hollow pen tube, an air stop valve, and a switch structure. One end of the pen tube is connected to a suction nozzle, and the other end of the pen tube is connected to a compressed air source, thereby forming a compressed air circuit within the pen tube. The air stop valve is disposed on the compressed air circuit, and the switch structure is used to control the connection and disconnection of the air stop valve, thereby connecting or disconnecting the compressed air circuit. This technical solution controls the connection and disconnection of the air stop valve by the switch structure, thereby connecting or disconnecting the compressed air circuit, avoiding the continuous opening of the compressed air source and conserving compressed air.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated circuit manufacturing, in particular to a vacuum suction pen. Background Art

[0002] A vacuum pen is a small pneumatic tool shaped like a pen. It consists of a plastic or rubber housing, a vacuum generator (pneumatic), a vacuum cup, an elbow, and a reel (pneumatic). It can be flexibly used in the assembly of small parts. It can be used to absorb wafers without damaging them, achieving a traceless effect. Therefore, it is widely used in integrated circuit manufacturing.

[0003] Vacuum suction pens can be divided into two categories: pneumatic suction pens and manual suction pens. Compared with manual suction pens, pneumatic suction pens are more powerful. The general air source of pneumatic suction pens requires compressed air. Traditional vacuum suction pens do not have the ability to control the on and off of the air source. Continuous opening of the air will cause a waste of energy (compressed air). Summary of the Invention

[0004] The main purpose of the present invention is to provide a vacuum suction pen, which aims to solve the problem that traditional vacuum suction pens do not have the ability to control the on and off of the air source, and continuous opening of the air will cause waste of energy (compressed air).

[0005] To achieve the above-mentioned objectives, the present invention proposes a vacuum suction pen, which includes a hollow pen tube, an air stop valve and a switch structure. One end of the pen tube is connected to a suction nozzle, and the other end of the pen tube is used to connect to a compressed air source to form a compressed air path in the pen tube; the air stop valve is arranged on the compressed air path; the switch structure is used to control the connection and disconnection of the air stop valve, thereby connecting or disconnecting the compressed air path.

[0006] Optionally, the air stop valve includes:

[0007] An air intake structure includes a column, one end of which is provided with a first channel, the first channel being connected to a compressed air source; and

[0008] A sealing structure comprising an annular baffle, which is sleeved outside the column, wherein the inner circumferential side and the outer circumferential side of the baffle respectively abut against the outer circumferential side of the column and the inner circumferential side of the pen barrel for sealing;

[0009] A first through hole is formed on the side wall of the column, the first through hole is connected to the inner end of the first channel, and the baffle is movably arranged along the axial direction of the column.

[0010] Optionally, a second channel is formed at the other end of the column, the second channel is spaced apart from the first channel, and a second through hole communicating with the inner end of the second channel is further formed on the side of the column;

[0011] The sealing structure includes two baffles, which are separated in the axial direction of the column. When the two baffles move to a first preset position, the first through hole and the second through hole are located between the two baffles, the two ends of the column are located outside the two baffles, the first channel and the second channel are connected, and when the two baffles move to a second preset position, the second through hole is located between the two baffles, the first through hole is located outside the two baffles, and the first channel and the second channel are separated.

[0012] Optionally, the switch structure includes a linkage mechanism, and the linkage mechanism includes:

[0013] A transmission rod is provided in the pen tube, and one end of the transmission rod is rotatably mounted on the pen tube;

[0014] a sliding rod, disposed in the pen barrel and slidably mounted on the pen barrel along the axial direction of the pen barrel, one end of the sliding rod in the sliding direction being hinged to the other end of the transmission rod, the other end of the sliding rod having a movable stroke that moves toward or away from the baffle to drive the baffle to move; and

[0015] A driving member drives the transmission rod to rotate.

[0016] Optionally, a through hole is provided on the side wall of the pen tube, and the driving member includes a driving rod and a button extending laterally from one end of the driving rod, the other end of the driving rod abuts against the transmission rod, and the button is movably provided in the through hole and has a movable stroke along the radial direction of the pen tube, thereby driving the other end of the driving rod to move, thereby driving the transmission rod to rotate.

[0017] Optionally, an elastic reset member is provided in the pen tube, so that the button has a pressed position and a reset position, which correspond to the on state and the off state of the air stop valve respectively.

[0018] Optionally, the air intake structure includes a large diameter pipe section, a small diameter pipe section and a connecting section connecting the large diameter pipe section and the small diameter pipe section. The outer circumference of the large diameter pipe section is abutted and sealed against the inner circumference of the pen tube. One end of the large diameter pipe section away from the small diameter pipe section is used to connect to a compressed air source. The small diameter pipe section forms the column. One end of the elastic return member abuts against the connecting section, and the other end abuts against the baffle.

[0019] Optionally, the pen tube is further provided with a pressure relief hole, and the pressure relief hole is located between the suction nozzle and the air stop valve.

[0020] Optionally, an air outlet elbow is provided in the pen tube and is located between the suction nozzle and the air stop valve. One end of the air outlet elbow is arranged close to the air stop valve, and the other end is connected to the pressure relief hole.

[0021] Optionally, the vacuum suction pen includes a finger ring having a circumferential opening, and the opening of the finger ring is away from the pen tube for easy picking.

[0022] In the technical solution of the present invention, the vacuum suction pen includes a hollow pen tube, an air stop valve, and a switch structure. One end of the pen tube is connected to a suction nozzle, and the other end of the pen tube is connected to a compressed air source, thereby forming a compressed air path within the pen tube. The air stop valve is disposed on the compressed air path, and the switch structure is used to control the opening and closing of the air stop valve, thereby connecting or disconnecting the compressed air path. By controlling the opening and closing of the air stop valve by the switch structure, the compressed air path is connected or disconnected, preventing the compressed air source from being continuously open and conserving compressed air. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 A schematic structural diagram of an embodiment of the vacuum suction pen provided by the present invention;

[0025] Figure 2 for Figure 1 Explosion diagram of the vacuum pen in [1].

[0026] Figure 3 for Figure 2 Schematic diagram of the assembly state of some components of the vacuum suction pen;

[0027] Figure 4 for Figure 2 A cross-sectional view of the assembly state of the air intake structure and sealing structure of the vacuum suction pen.

[0028] Description of Figure Numbers:

[0029]

[0030]

[0031] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] A vacuum pen is a small pneumatic tool shaped like a pen. It consists of a plastic or rubber housing, a vacuum generator (pneumatic), a vacuum cup, an elbow, and a reel (pneumatic). It can be flexibly used in the assembly of small parts. It can be used to absorb wafers without damaging them, achieving a traceless effect. Therefore, it is widely used in integrated circuit manufacturing.

[0036] Vacuum suction pens can be divided into two categories: pneumatic suction pens and manual suction pens. Compared with manual suction pens, pneumatic suction pens are more powerful. The general air source of pneumatic suction pens requires compressed air. Traditional vacuum suction pens do not have the ability to control the on and off of the air source. Continuous opening of the air will cause a waste of energy (compressed air).

[0037] In view of this, the present invention provides a vacuum suction pen, which avoids the continuous opening of the compressed air source and saves compressed air. Figures 1 to 4 This is an embodiment of the vacuum suction pen provided by the present invention.

[0038] In the embodiment of the present invention, please refer to Figures 1 to 4The vacuum pen 100 includes a hollow pen tube 1, an air stop valve 2, and a switch structure 3. One end of the pen tube 1 is connected to a suction nozzle 4, and the other end of the pen tube 1 is connected to a compressed air source, thereby forming a compressed air circuit within the pen tube 1. The air stop valve 2 is provided on the compressed air circuit. The switch structure 3 is used to control the connection and disconnection of the air stop valve 2, thereby connecting or disconnecting the compressed air circuit.

[0039] In the technical solution of the present invention, the switching structure 3 is used to control the connection and disconnection of the air stop valve 2, thereby connecting or disconnecting the compressed air path, avoiding the continuous opening of the compressed air source, and saving compressed air.

[0040] In this embodiment, the air stop valve 2 includes an air intake structure 21 and a sealing structure 22. The air intake structure 21 includes a cylinder 211, and a first channel 2111 is defined at one end of the cylinder 211, and the first channel 2111 is connected to a compressed air source; the sealing structure 22 includes an annular baffle 221, which is sleeved on the outside of the cylinder 211, and the inner circumferential side and the outer circumferential side of the baffle 221 are respectively abutted and sealed against the outer circumferential side of the cylinder 211 and the inner circumferential side of the pen tube 1; wherein, a first through hole 2112 is defined in the side wall of the cylinder 211, and the first through hole 2112 is connected to the inner end of the first channel 2111, and the baffle 221 is movably arranged along the axial direction of the cylinder 211. With this arrangement, when the baffle 221 moves to a preset position, one end of the column 211 defining the first passage 2111 and the first through hole 2112 are located on the same side of the baffle 221, and the compressed air path is blocked by the baffle 221, i.e., the air stop valve 2 is in an off state. When the baffle 221 moves to another preset position, one end of the column 211 defining the first passage 2111 and the first through hole 2112 are located on either side of the baffle 221, respectively, and the compressed air path is connected at the baffle 221 due to the first passage 2111, i.e., the air stop valve 2 is in an on state. The baffle 221 is sleeved outside the column 211 and moves along the axial direction of the column 211 to achieve the disconnection and connection of the air stop valve 2, resulting in a simple structure and convenient control.

[0041] Furthermore, a second channel 2113 is provided at the other end of the column 211, and the second channel 2113 is separated from the first channel 2111. A second through hole 2114 communicating with the inner end of the second channel 2113 is also provided on the side of the column 211; the sealing structure 22 includes two baffles 221, and the two baffles 221 are separated in the axial direction of the column 211. When the two baffles 221 move to the first preset position, the first through hole 2112 and the second through hole 2114 are located between the two baffles 221, and the two ends of the column 211 are located on the outside of the two baffles 221. The first channel 2111 and the second channel 2113 are communicated. When the two baffles 221 move to the second preset position, the second through hole 2114 is located between the two baffles 221, and the first through hole 2112 is located on the outside of the two baffles 221, and the first channel 2111 and the second channel 2113 are separated. With such an arrangement, when the two baffles 221 move to the first preset position, the compressed gas path is connected, and the compressed gas flows out from the second channel 2113. The second channel 2113 is opened at the other end of the column 211, and the compressed gas can form a jet to ensure the use effect of the compressed gas.

[0042] The present invention does not limit the specific structure of the switch mechanism 3. It can be a push rod directly mounted on the baffle 221, which moves the baffle 221 by pushing the push rod. In this embodiment, the switch mechanism 3 includes a linkage mechanism 31, which comprises a transmission rod 311, a sliding rod 312, and a driving member 313. The transmission rod 311 is disposed within the pen barrel 1, one end of which is rotatably mounted on the pen barrel 1. The sliding rod 312 is disposed within the pen barrel 1 and slidably mounted thereon along the axial direction of the pen barrel 1. One end of the sliding rod 312 is hingedly connected to the other end of the transmission rod 311 in the sliding direction. The other end of the sliding rod 312 has a movable range that allows it to move toward or away from the baffle 221, thereby driving the movement of the baffle 221. The driving member 313 drives the transmission rod 311 to rotate. This arrangement allows the control end of the switch mechanism 3 to be configured as needed through the linkage mechanism 31, resulting in a flexible layout and convenient use of the vacuum pen 100.

[0043] Furthermore, the side wall of the pen tube 1 is provided with a through hole, and the driving member 313 includes a driving rod 3131 and a button 3132 extending laterally from one end of the driving rod 3131. The other end of the driving rod 3131 abuts the transmission rod 311. The button 3132 is movably inserted into the through hole and has a movable stroke along the radial direction of the pen tube 1, thereby driving the other end of the driving rod 3131 to move, thereby driving the transmission rod 311 to rotate. By setting the linkage mechanism, the button 3132 can be set in a position close to the human hand, making it easy to hold and press. Of course, other methods such as pulling a pull cord can also be used instead of pressing the button 3132, and the present invention is not limited thereto. In this embodiment, the button 3132 is used, the structural setting is relatively simple, and the operation is more convenient.

[0044] In this embodiment, an elastic return member 5 is provided in the pen tube 1, so that the button 3132 has a pressed position and a reset position, which respectively correspond to the connected state and disconnected state of the air stop valve 2. Therefore, when the vacuum suction pen 100 needs to be used, the button 3132 is pressed to connect the air stop valve 2, so that the compressed air path is connected, and the compressed air enters the vacuum generating part in the pen tube 1, consuming the compressed air to generate vacuum suction; when not in use, the button 3132 rebounds to the reset position, disconnecting the air stop valve 2, disconnecting the compressed air path, not consuming compressed air and not generating vacuum suction, thereby avoiding waste of compressed air.

[0045] Furthermore, the air inlet structure 21 includes a large-diameter tube section, a small-diameter tube section, and a connecting section connecting the large-diameter and small-diameter tube sections. The outer circumference of the large-diameter tube section is sealed against the inner circumference of the pen barrel 1. The end of the large-diameter tube section, remote from the small-diameter tube section, is connected to a compressed air source. The small-diameter tube section forms the column 211. One end of the elastic return member 5 abuts the connecting section, and the other end abuts the baffle 221. With this arrangement, compressed air enters through the large-diameter tube section and flows out through the small-diameter tube section, forming a jet, ensuring effective use of the compressed air. Furthermore, the elastic return member 5 is convenient and stable to install. The present invention does not limit the specific structure of the elastic return member 5, and it may be an elastic gasket, an elastic rubber ring, or the like. In this embodiment, the elastic return member 5 is a spring 51, which is sleeved outside the column 211, with one end abutting the connecting section and the other end abutting the baffle 221. The spring 51 is a durable and reliable structure.

[0046] In this embodiment, the pen tube 1 is further provided with a pressure relief hole 11 , which is located between the suction nozzle 4 and the air stop valve 2 , so that the waste gas in the pen tube 1 can be discharged.

[0047] Furthermore, an air outlet elbow head 6 is provided in the pen tube 1, which is located between the suction nozzle 4 and the air stop valve 2. One end of the air outlet elbow head 6 is arranged close to the air stop valve 2, and the other end is connected to the pressure relief hole 11. The air outlet elbow head 6 is provided to facilitate the discharge of exhaust gas.

[0048] In this embodiment, the vacuum pen 100 includes a finger ring 7 having a circumferential opening. The opening of the finger ring 7 is located away from the pen tube 1, making it easier to pick up the pen. The circumferential opening of the finger ring 7 makes it easier to fit fingers of different sizes and makes it easier for the user to insert and remove the finger.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A vacuum pen, characterized in that: include: A hollow pen tube, one end of which is connected to a suction nozzle, and the other end of which is connected to a compressed air source to form a compressed air path in the pen tube; a stop valve, provided on the compressed air path; as well as, a switch structure for controlling the connection and disconnection of the air stop valve, thereby connecting or disconnecting the compressed air circuit; The air stop valve includes an air intake structure and a sealing structure. The air intake structure includes a column, one end of which is provided with a first channel connected to a compressed air source. The sealing structure includes an annular baffle, which is sleeved outside the column. The inner and outer circumferential sides of the baffle are respectively in contact with the outer circumference of the column and the inner circumference of the pen barrel to seal. A first through hole is formed on the side wall of the column, the first through hole is connected to the inner end of the first channel, and the baffle is movably arranged along the axial direction of the column; A second channel is formed at the other end of the column, the second channel being spaced apart from the first channel, and a second through hole is formed at the side of the column and communicating with the inner end of the second channel; The sealing structure includes two baffles, which are separated in the axial direction of the column. When the two baffles move to a first preset position, the first through hole and the second through hole are located between the two baffles, the two ends of the column are located outside the two baffles, the first channel and the second channel are connected, and when the two baffles move to a second preset position, the second through hole is located between the two baffles, the first through hole is located outside the two baffles, and the first channel and the second channel are separated.

2. The vacuum pen according to claim 1, wherein: The switch structure includes a linkage mechanism, and the linkage mechanism includes: A transmission rod is provided in the pen tube, and one end of the transmission rod is rotatably mounted on the pen tube; a sliding rod, disposed in the pen barrel and slidably mounted on the pen barrel along the axial direction of the pen barrel, one end of the sliding rod in the sliding direction being hinged to the other end of the transmission rod, the other end of the sliding rod having a movable stroke that moves toward or away from the baffle to drive the baffle to move; and A driving member drives the transmission rod to rotate.

3. The vacuum pen according to claim 2, wherein: A through hole is provided on the side wall of the pen tube, and the driving member includes a driving rod and a button extending laterally from one end of the driving rod. The other end of the driving rod abuts against the transmission rod. The button is movably penetrated through the through hole and has a movable stroke along the radial direction of the pen tube, thereby driving the other end of the driving rod to move, thereby driving the transmission rod to rotate.

4. The vacuum pen according to claim 3, wherein: An elastic reset member is provided in the pen tube, so that the button has a pressed position and a reset position, which correspond to the on state and the off state of the air stop valve respectively.

5. The vacuum pen according to claim 4, wherein: The air intake structure includes a large-diameter pipe section, a small-diameter pipe section, and a connecting section connecting the large-diameter pipe section and the small-diameter pipe section. The outer circumference of the large-diameter pipe section is abutted and sealed against the inner circumference of the pen tube. One end of the large-diameter pipe section away from the small-diameter pipe section is used to connect to a compressed air source. The small-diameter pipe section forms the column. One end of the elastic return member abuts against the connecting section, and the other end abuts against the baffle.

6. The vacuum pen according to claim 1, wherein: The pen tube is further provided with a pressure relief hole, which is located between the suction nozzle and the air stop valve.

7. The vacuum pen according to claim 6, wherein: An air outlet elbow is provided in the pen tube and is located between the suction nozzle and the air stop valve. One end of the air outlet elbow is arranged close to the air stop valve, and the other end is connected to the pressure relief hole.

8. The vacuum suction pen according to any one of claims 1 to 7, characterized in that: The vacuum suction pen comprises a finger ring having an opening in a circumferential direction. The opening of the finger ring is away from the pen tube, so as to be easy to take.

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