Dust collection pneumatic three-way valve

Abstract

The utility model discloses a dust collection pneumatic three-way valve, which belongs to the technical field of a valve structure for dust removal of a plate separator, and comprises a valve cover, a valve seat, a valve core, a first circulation hole, a second circulation hole, a third circulation hole, a Z-axis follow-up dust collection pipe, a manual dust collection bifurcated pipe, a dust collection pipe, a driving mechanism and a valve position detection dual-mode indication mechanism, the valve element is rotationally connected with the valve deck and the valve element, a first circulation hole, a second circulation hole and a third circulation hole are formed in the wall, one end of the Z-axis follow-up dust suction pipe, one end of the manual dust suction bifurcated pipe and one end of the dust collection pipe are fixedly connected with a shell of the valve deck and a shell of the valve seat respectively, and the driving mechanism is installed at the bottom of the valve seat. The driving mechanism is used for providing driving force for adjusting the air inlet and outlet valve, and the valve position detection dual-mode indicating mechanism is installed between the valve seat and the driving mechanism and used for displaying and checking whether the valve is opened and closed in place or not. By means of the mode, the requirement for double-point-position dust collection which is not used at the same time can be met through one device.

Description

Technical Field

[0001] This utility model relates to the technical field of valve structure for dust removal in PCB depaneling machines, specifically to a dust suction pneumatic three-way valve. Background Technology

[0002] As a key piece of equipment in the PCB manufacturing industry, the dust pollution generated during the operation of the depaneling machine directly affects product yield and equipment lifespan, which places stringent requirements on the reliability of the dust removal system. Valves, as the core control components of the dust removal pipeline, directly determine the dust collection efficiency.

[0003] Current dust removal systems for PCB depaneling machines mostly use single-channel independent control, making it impossible to achieve multi-station cleaning operations with a single device. At the same time, due to the large size of the dust removal mechanism and insufficient modular design of internal components, disassembly is cumbersome, affecting daily cleaning and maintenance, and causing many inconveniences for dust removal in PCB depaneling machines.

[0004] Based on this, the present invention designs a dust suction pneumatic three-way valve to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a dust suction pneumatic three-way valve.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pneumatic three-way valve for vacuuming includes a valve cover, a valve seat, and a valve core. It also includes a first flow hole, a second flow hole, a third flow hole, a Z-axis follow-up vacuuming pipe, a manual vacuuming branch pipe, a dust collection pipe, a drive mechanism, and a dual-mode valve position detection indicator mechanism. The valve core is rotatably connected to both the valve cover and the valve core. The first, second, and third flow holes for controlling airflow direction are respectively formed on three adjacent walls of the valve core. The adjacent ends of the first, second, and third flow holes are connected, and the first, second, and third flow holes are combined to form a T-shaped hole. The Z-axis follow-up vacuuming pipe and the manual vacuuming branch pipe... One end of the manual suction branch pipe and the dust collection pipe are fixedly connected to the housing of the valve cover and the valve seat, respectively. The other end of the Z-axis follow-up suction pipe is used for follow-up suction of the cutting blade of the PCB machine during the automatic Z-axis PCB cutting process. The other end of the manual suction branch pipe is used for manual suction of other areas of the PCB machine. The other end of the dust collection pipe is fixedly connected to the air inlet of the dust collector to provide the driving force for suction. The drive mechanism is installed at the bottom of the valve seat and is used to control the rotation of the valve core. The valve position detection dual-mode indicator mechanism is installed between the valve seat and the drive mechanism and is used to display and check whether the valve is open or closed in place.

[0008] Furthermore, the drive mechanism includes a pneumatic actuator and a quick-release connection assembly, which is installed between the valve core and the thin rotary cylinder, and the thin rotary cylinder is fixedly connected to the valve seat.

[0009] Furthermore, the pneumatic actuator can be a thin rotary cylinder;

[0010] Furthermore, the quick-release connection assembly includes a connecting block and a locking pin, with a connecting groove at the lower end of the valve core, and the connecting block is inserted into the connecting groove. The connecting block is a square block.

[0011] Furthermore, locking grooves are provided on the locking pin and connecting block, and the inner wall of the locking groove is provided with threads for connection with bolts;

[0012] Furthermore, the valve position detection dual-mode indicating mechanism includes a valve position stroke indicating component and a valve position trigger indicating component. The valve position stroke indicating component and the valve position trigger indicating component are installed at the lower end of the valve seat. The valve position stroke indicating component is used to indicate the angle of rotation of the valve core driven by the thin rotary cylinder, and the valve position trigger indicating component is used to trigger the display when the valve position reaches the specified position.

[0013] Furthermore, the valve position stroke indicator assembly includes a rocker arm and a dial. The dial is set on the outer wall of the lower end of the valve seat. One end of the rocker arm is fixedly connected to the connecting block, and the other end of the rocker arm indicates the angle of rotation of the valve core.

[0014] Furthermore, the valve position trigger indicator assembly includes a first conductive plate, a second conductive plate, and an indicator light. The first conductive plate is fixedly connected to the rocker arm, and the two second conductive plates are fixedly connected to the lower outer wall of the valve seat on the same circumference. The indicator light is fixedly installed on the outer wall of the valve seat, and the first and second conductive plates are electrically connected to the indicator light.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. The dust collector equipped with a dust collection pneumatic three-way valve can meet the dual-point dust collection needs that are not used at the same time with one device.

[0016] 2. The locking pin of the fixed component that drives the rotation is located on the outside of the valve body, which makes it easy to disassemble and assemble, and easy to clean and maintain. At the same time, this structure eliminates the protruding connecting parts in the valve core, reducing wind resistance and improving dust removal efficiency.

[0017] 3. Two methods are provided for checking whether the valve is in the correct position: a dial indicator and an indicator light. This makes valve position observation and calibration more intuitive and convenient, which is beneficial for dust removal. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This utility model relates to a three-dimensional pneumatic three-way valve for dust collection. Figure 1 ;

[0020] Figure 2 This is a front view of a pneumatic three-way valve for dust collection according to the present invention;

[0021] Figure 3 This is a left view of a pneumatic three-way valve for dust collection according to the present invention;

[0022] Figure 4 For along Figure 2 A sectional view along the AA direction;

[0023] Figure 5 This is a partial structural diagram of a pneumatic three-way valve for dust collection according to the present invention;

[0024] Figure 6 For along Figure 2 BB direction sectional view.

[0025] The labels in the diagram represent:

[0026] 10. Valve cover; 11. Valve seat; 12. Valve core; 13. First flow hole; 14. Second flow hole; 15. Third flow hole; 16. Z-axis follow-up suction pipe; 17. Manual suction branch pipe; 18. Dust collection pipe; 2. Drive mechanism; 21. Thin rotary cylinder; 22. Quick-release connection assembly; 221. Connecting block; 222. Connecting groove; 223. Locking pin; 224. Locking groove; 3. Valve position detection dual-mode indicator mechanism; 31. Valve position stroke indicator assembly; 311. Swing rod; 312. Dial; 32. Valve position trigger indicator assembly; 321. First conductive sheet; 322. Second conductive sheet; 323. Indicator light. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0029] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-6 A vacuuming pneumatic three-way valve includes a valve cover 10, a valve seat 11 and a valve core 12, and also includes a first flow hole 13, a second flow hole 14 and a third flow hole 15, a Z-axis follow-up vacuuming pipe 16, a manual vacuuming branch pipe 17, a dust collection pipe 18, a drive mechanism 2 and a valve position detection dual-mode indicator mechanism 3.

[0030] The valve core 12 is rotatably connected to the valve cover 10 and the valve core 12. A first flow hole 13, a second flow hole 14, and a third flow hole 15 for controlling the airflow direction are respectively opened on three adjacent walls of the valve core 12. The adjacent ends of the first flow hole 13, the second flow hole 14, and the third flow hole 15 are connected, and the first flow hole 13, the second flow hole 14, and the third flow hole 15 are combined to form a T-shaped hole. One end of the Z-axis follow-up suction pipe 16, the manual suction branch pipe 17, and the dust collection pipe 18 are fixedly connected to the housings of the valve cover 10 and the valve seat 11, respectively. The other end of the Z-axis follow-up dust suction pipe 16 is used for follow-up dust suction during the automatic Z-axis separation process of the PCB cutting blade. The other end of the manual dust suction branch pipe 17 is used for manual dust suction in other areas of the PCB. The other end of the dust collection pipe 18 is fixedly connected to the air inlet of the dust collector to provide the driving force for dust suction. The drive mechanism 2 is installed at the bottom of the valve seat 11. The drive mechanism 2 is used to control the rotation of the valve core 12. The valve position detection dual-mode indicator mechanism 3 is installed between the valve seat 11 and the drive mechanism 2. The valve position detection dual-mode indicator mechanism 3 is used to display and check whether the valve is open or closed in place.

[0031] In this embodiment, the vacuuming pneumatic three-way valve is equipped with a Z-axis vacuuming mode and a manual vacuuming mode, which are used for Z-axis vacuuming and manual vacuuming, respectively.

[0032] The gear shown in the figure is the manual vacuuming gear. At this time, the second flow hole 14 on the valve core 12 is aligned and connected with the dust collection pipe 18, and the third flow hole 15 is aligned and connected with the manual vacuuming branch pipe 17. The Z-axis follow-up vacuuming pipe 16 is closed, and the dust collector connected to the other end of the dust collection pipe 18 is turned on, so that dust and debris enter from the manual vacuuming branch pipe 17 and are collected in the dust collection box of the dust collector through the dust collection pipe 18.

[0033] When switching to the Z-axis vacuum mode, the drive mechanism 2 starts to provide the driving force required for switching modes, causing the valve core 12 to rotate 90° counterclockwise in the top view. The valve position detection dual-mode indicator mechanism 3 can determine whether the valve is open or closed. At this time, the first flow hole 13 is connected to the Z-axis follow-up vacuum pipe 16, the third flow hole 15 is connected to the dust collection pipe 18, the manual vacuuming branch pipe 17 is closed, and the Z-axis follow-up vacuum pipe 16 adsorbs and cleans dust and debris.

[0034] In this embodiment, the dust collector equipped with a pneumatic three-way valve can meet the dual-point dust collection needs that are not used simultaneously with a single device. For example, if a PCBA depaneling machine is only matched with one dust collector, but there are two or more areas that need dust collection (dust collection needs that are not used simultaneously), such as the follow-up dust collection during the automatic depaneling process of the depaneling machine's cutting blade cutting the Z-axis, and the non-automatic manual dust collection needs for cleaning the front door area and the rear door area of ​​the depaneling machine, the dust collection pneumatic three-way valve in this embodiment can achieve these needs.

[0035] In some embodiments, please refer to the accompanying drawings. Figure 2 and Figure 4 The drive mechanism 2 includes a pneumatic actuator and a quick-release connection assembly 22. The pneumatic actuator can be a thin rotary cylinder 21. The quick-release connection assembly 22 is installed between the valve core 12 and the thin rotary cylinder 21. The thin rotary cylinder 21 is fixedly connected to the valve seat 11.

[0036] like Figure 4 As shown, the quick-release connection assembly 22 includes a connecting block 221 and a locking pin 223. A connecting groove 222 is provided at the lower end of the valve core 12. The connecting block 221 is inserted into the connecting groove 222. The connecting block 221 is set as a square block.

[0037] Locking grooves 224 are provided on locking pin 223 and connecting block 221, and the inner wall of locking groove 224 is provided with threads for connection with bolts.

[0038] In this embodiment, the thin rotary cylinder 21 is activated, and under the fixing action of the locking pin 223, it drives the connecting block 221 to rotate, and the connecting block 221 drives the valve core 12 to rotate synchronously.

[0039] In this embodiment, the locking pin 223 of the fixed component that drives the rotation is located on the outside of the valve body, which is easy to disassemble and assemble, and convenient for cleaning and maintenance. At the same time, this structure eliminates the protruding connecting parts in the valve core 12, reducing wind resistance and improving dust removal efficiency.

[0040] In some embodiments, please refer to the accompanying drawings. Figure 3 and Figure 5 The valve position detection dual-mode indicator mechanism 3 includes a valve position stroke indicator component 31 and a valve position trigger indicator component 32. The valve position stroke indicator component 31 and the valve position trigger indicator component 32 are installed at the lower end of the valve seat 11. The valve position stroke indicator component 31 is used to indicate the angle of rotation of the valve core 12 driven by the thin rotary cylinder 21. The valve position trigger indicator component 32 is used to trigger the display when the valve position reaches the specified position.

[0041] like Figure 5 As shown, the valve position stroke indicator assembly 31 includes a rocker arm 311 and a dial 312. The dial 312 is disposed on the lower outer wall of the valve seat 11. One end of the rocker arm 311 is fixedly connected to the connecting block 221, and the other end of the rocker arm 311 is provided with a pointer that matches the dial 312. The rocker arm 311 is used to indicate the angle of rotation of the valve core 12.

[0042] like Figure 5 As shown, the valve position trigger indicator assembly 32 includes a first conductive sheet 321, a second conductive sheet 322, and an indicator light 323. The first conductive sheet 321 is fixedly connected to the rocker arm 311, and the two second conductive sheets 322 are fixedly connected to the lower outer wall of the valve seat 11 on the same circumference. The indicator light 323 is fixedly installed on the outer wall of the valve seat 11. The first conductive sheet 321 and the second conductive sheet 322 are electrically connected to the indicator light 323.

[0043] In this embodiment, when the vacuuming pneumatic three-way valve switches gears, the swing arm 311 rotates synchronously with the connecting block 221, so that the rotation angle can be indicated on the dial 312. When the three-way valve reaches the Z-axis vacuuming gear and the manual vacuuming gear, the first conductive plate 321 rotates with the swing arm 311 and comes into contact with the second conductive plate 322, so that the indicator light 323 circuit is turned on and illuminates, indicating that the gear has been switched to the correct position.

[0044] In this embodiment, two methods are provided for checking whether the valve is in the correct position: dial 312 indication and indicator light 323 display. This makes valve position observation and calibration more intuitive and convenient, which is beneficial for dust removal.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pneumatic three-way valve for dust collection, comprising a valve cover (10), a valve seat (11), and a valve core (12), characterized in that: It also includes a first flow hole (13), a second flow hole (14), a third flow hole (15), a Z-axis follow-up suction pipe (16), a manual suction branch pipe (17), a dust collection pipe (18), a drive mechanism (2), and a valve position detection dual-mode indicator mechanism (3). The valve core (12) is rotatably connected to the valve cover (10) and the valve core (12). The first flow hole (13), the second flow hole (14), and the third flow hole (15) for controlling the airflow direction are respectively opened on the three adjacent walls of the valve core (12). The adjacent ends of the first flow hole (13), the second flow hole (14), and the third flow hole (15) are connected, and the first flow hole (13), the second flow hole (14), and the third flow hole (15) are combined to form a T-shaped hole. The Z-axis follow-up suction pipe ( 16) One end of the manual vacuuming branch pipe (17) and the dust collection pipe (18) are fixedly connected to the housing of the valve cover (10) and the valve seat (11), respectively. The other end of the Z-axis follow-up vacuuming pipe (16) is used for follow-up vacuuming of the cutting blade of the PCB machine during the automatic Z-axis PCB cutting process. The other end of the manual vacuuming branch pipe (17) is used for manual vacuuming of other areas of the PCB machine. The other end of the dust collection pipe (18) is fixedly connected to the air inlet of the dust collector to provide the driving force for vacuuming. The drive mechanism (2) is installed at the bottom of the valve seat (11). The drive mechanism (2) is used to control the rotation of the valve core (12). The valve position detection dual-mode indicator mechanism (3) is installed between the valve seat (11) and the drive mechanism (2). The valve position detection dual-mode indicator mechanism (3) is used to display and check whether the valve is open or closed in place.

2. The clean air pneumatic tee valve of claim 1, wherein, The drive mechanism (2) includes a pneumatic actuator and a quick-release connection assembly (22). The quick-release connection assembly (22) is installed between the valve core (12) and the thin rotary cylinder (21). The thin rotary cylinder (21) is fixedly connected to the valve seat (11).

3. The clean air pneumatic tee valve of claim 2, wherein, The pneumatic actuator can be a thin rotary cylinder (21).

4. The clean air pneumatic tee valve of claim 2, wherein, The quick-release connection assembly (22) includes a connecting block (221) and a locking pin (223). A connecting groove (222) is provided at the lower end of the valve core (12). The connecting block (221) is inserted into the connecting groove (222). The connecting block (221) is set as a square block.

5. The clean air pneumatic tee valve of claim 4, wherein, Locking grooves (224) are provided on the locking pin (223) and the connecting block (221), and the inner wall of the locking groove (224) is provided with threads for connection with bolts.

6. The vacuum suction pneumatic three-way valve according to claim 1, characterized in that, The valve position detection dual-mode indicator mechanism (3) includes a valve position stroke indicator component (31) and a valve position trigger indicator component (32). The valve position stroke indicator component (31) and the valve position trigger indicator component (32) are installed at the lower end of the valve seat (11). The valve position stroke indicator component (31) is used to indicate the angle of rotation of the valve core (12) driven by the thin rotary cylinder (21). The valve position trigger indicator component (32) is used to trigger the display when the valve position reaches the specified position.

7. The clean air pneumatic tee valve of claim 6, wherein, The valve position stroke indicator assembly (31) includes a rocker arm (311) and a dial (312). The dial (312) is set on the lower outer wall of the valve seat (11). One end of the rocker arm (311) is fixedly connected to the connecting block (221), and the other end of the rocker arm (311) indicates the angle of rotation of the valve core (12).

8. The clean air pneumatic tee valve of claim 7, wherein, The valve position trigger indicator assembly (32) includes a first conductive sheet (321), a second conductive sheet (322), and an indicator light (323). The first conductive sheet (321) is fixedly connected to the rocker arm (311), and the two second conductive sheets (322) are fixedly connected to the lower outer wall of the valve seat (11) on the same circumference. The indicator light (323) is fixedly installed on the outer wall of the valve seat (11). The first conductive sheet (321) and the second conductive sheet (322) are electrically connected to the indicator light (323).

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