Valve island type vacuum generator system

Abstract

The invention discloses a valve terminal type vacuum generator system which comprises a plurality of vacuum generators and further comprises a plurality of bases in one-to-one correspondence with the vacuum generators, the bases are stacked in the X-axis direction, and each vacuum generator is detachably matched with the corresponding base in an inserted mode so that mechanical connection and electrical connection can be formed between the vacuum generator and the corresponding base. When the vacuum generator breaks down or needs to be maintained, the whole valve terminal assembly does not need to be disassembled, the plunger latch is moved from the first position to the second position by pulling the plunger latch forwards so that fixed connection between the vacuum generator and the base can be removed, and therefore the vacuum generator can be disassembled from the corresponding base. Similarly, when the vacuum generator is mounted, the vacuum generator is inserted into the base, and the plunger latch is moved from the second position to the first position, so that the vacuum generator is fixedly connected with the base. The device is simple in structure and convenient to operate, saves the time for disassembling and assembling the vacuum generator, and is high in working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum generators, and in particular to a valve island type vacuum generator system. Background Art

[0002] The vacuum generator is a pneumatic component that uses the flow of compressed air to form a certain degree of vacuum. As a means of achieving automation, it has been widely used in electronics, semiconductor component assembly, automobile assembly, automatic handling machinery, light industrial machinery, food machinery, medical machinery, printing machinery, plastic product machinery, packaging machinery, forging machinery, robots and many other fields.

[0003] Valve island type vacuum equipment integrates signal input / output and signal control, just like a control island. Valve island type vacuum equipment is a new generation of gas-electric integrated control components. Valve island type vacuum equipment greatly simplifies the debugging, performance detection, diagnosis and maintenance of complex systems, and has broad application prospects.

[0004] For example, a vacuum island disclosed in a Chinese invention patent (publication number: CN118462875A) includes a plurality of vacuum generators, which are stacked along a first direction A; the vacuum generator includes a confluence valve unit, a vacuum generating unit connected to the confluence valve unit, and a control valve unit; the confluence valve unit is provided with a confluence port, a first flow channel connected to the confluence port, and a second flow channel; the vacuum generating unit is provided with a vacuum exhaust flow channel and a vacuum breaking flow channel, the vacuum exhaust flow channel has an air inlet end, an air suction end, and an air exhaust end, and the vacuum breaking flow channel is connected to the second flow channel; the control valve unit is used to control the conduction or closing of the vacuum generating flow channel of the vacuum generating unit, or control the conduction or closing of the vacuum breaking flow channel on the confluence valve unit. The confluence valve unit, the vacuum generating unit, and the three-position five-way valve unit are integrated, and the flow channels of each unit form a connected working flow channel after being assembled, and no additional flow channels need to be arranged. The flow channel layout is reasonable, the structure is compact, and it is conducive to the miniaturization of the device.

[0005] However, a vacuum island disclosed in the above-mentioned prior art is a vacuum island in which several vacuum generators are stacked along a first direction A by long bolts, and a confluence valve unit, a vacuum generating unit and a three-position five-way valve unit are integrated into one body. The vacuum generating unit has multiple valves integrated inside, and is a component of the vacuum island that is more prone to failure. When the vacuum generating unit fails or needs maintenance, the entire valve island assembly needs to be disassembled, which is inconvenient to repair or replace, has low work efficiency, and cannot be maintained online.

[0006] Therefore, it is necessary to improve the existing technology. Summary of the invention

[0007] The purpose of the present invention is to solve the problem in the prior art that when the vacuum generator fails or needs maintenance, the entire valve island assembly needs to be disassembled, resulting in low work efficiency and inconvenient maintenance or replacement, and to propose a valve island type vacuum generator system.

[0008] To achieve the above object, the present invention adopts the following technical solutions: A valve island type vacuum generator system, comprising a plurality of vacuum generators, and also comprising a plurality of bases corresponding to the vacuum generators one by one, the plurality of bases are stacked along the X-axis direction, and each of the vacuum generators is detachably plugged into and matched with the corresponding base to form a mechanical and electrical connection between the two; a base air inlet and a base exhaust port are provided on the base, and an air inlet duct connected to the base air inlet and an air outlet duct connected to the base exhaust port are provided inside the base, when the plurality of bases are stacked, the positions of the air inlet ducts correspond and are interconnected to form an air inlet merging channel, the positions of the air outlet ducts correspond and are interconnected to form an exhaust merging channel, and the air inlet merging channel and the exhaust merging channel are arranged separately from each other; the vacuum generator is provided with a generator air inlet corresponding to the base air inlet, and a generator air outlet corresponding to the base exhaust port.

[0009] Furthermore, each of the bases is provided with a circuit board A, and the circuit board A is respectively provided with a first electrical signal plug interface, a second electrical signal plug interface and a third electrical signal plug interface, wherein any two adjacent bases are plugged together through the corresponding first electrical signal plug interface and the second electrical signal plug interface to achieve electrical connection between the two adjacent bases; the vacuum generator is provided with a circuit board B inside, and the circuit board B is provided with a fourth electrical signal plug interface plugged together with the third electrical signal plug interface to achieve electrical connection between the vacuum generator and the base.

[0010] Furthermore, it also includes a first mounting seat and a second mounting seat, and several of the bases are serially connected between the first mounting seat and the second mounting seat along the X-axis direction. The first mounting seat is provided with a circuit board C, and the circuit board C is provided with a fifth electrical signal plug interface. The fifth electrical signal plug interface is plugged into and matched with the first electrical signal plug interface of the base located at the outermost side to achieve electrical connection between the first mounting seat and the base at the outermost side.

[0011] Furthermore, it also includes a control box, which is fixedly connected to the first mounting seat. A circuit board D is arranged in the control box, and the circuit board D is provided with a sixth electrical signal plug interface. The circuit board C is provided with a seventh electrical signal plug interface that is plugged and matched with the sixth electrical signal plug interface to achieve electrical connection between the control box and the first mounting seat.

[0012] Furthermore, a plug part is provided at the bottom of the vacuum generator, and the base is provided with a socket that cooperates with the plug part, and the plug part and the socket are plugged and cooperated to realize the connection between the vacuum generator and the base; a latch that cooperates with the plug part for locking is slidably provided in the base, and the latch can slide between a first position and a second position relative to the base; when the latch is in the first position, the latch locks the plug part, so that the vacuum generator is fixedly connected to the base; when the latch is in the second position, the latch releases the lock on the plug part, so that the vacuum generator and the base are released from the fixed connection.

[0013] Furthermore, the plug part includes a first plug part, a second plug part and a third plug part arranged at the bottom of the vacuum generator, and the socket includes a first socket corresponding to the first plug part and a second socket corresponding to the third plug part; the side edge of the bottom of the first plug part is provided with a locking groove arranged along the sliding direction of the latch, and the latch is provided with a first locking mouth that locks with the locking groove; the second plug part is provided with a locking buckle, and the latch is provided with a second locking mouth that locks with the locking buckle; the bottom side wall of the third plug part is provided with a third locking mouth, and the latch is provided with a locking tongue that locks with the third locking mouth.

[0014] Furthermore, the vacuum generator includes an equipment main body module, a valve assembly module and a pressure gauge module, the pressure gauge module and the valve assembly module are both installed to the equipment main body module, the valve assembly module includes an air-controlled valve unit, and a control valve unit connected to the air-controlled valve unit, the air-controlled valve unit includes a vacuum valve and a piercing valve, the control valve unit includes a vacuum pilot valve for controlling the operation of the vacuum valve and an air-piercing pilot valve for controlling the operation of the air-piercing valve; the equipment main body module is provided with a negative pressure suction working port.

[0015] Furthermore, the control valve unit is respectively provided with a pilot air intake converging channel, a vacuum control air channel and an air-breaking control air channel, the pilot air intake converging channel is respectively connected with the vacuum pilot valve and the air-breaking pilot valve, the vacuum control air channel is respectively connected with the vacuum pilot valve and the vacuum valve, and the air-breaking control air channel is respectively connected with the air-breaking pilot valve and the air-breaking valve; the air control valve unit is respectively provided with a vacuum valve inlet and a vacuum valve outlet corresponding to the vacuum valve, and an air-breaking valve inlet and an air-breaking valve outlet corresponding to the air-breaking valve, and the air-breaking valve inlet is always connected with the pilot air intake converging channel; the vacuum valve inlet is connected with the generator inlet through a first air path, the vacuum valve outlet is connected with the generator outlet through a second air path, the air-breaking valve inlet is connected with the generator inlet through a third air path, and the air-breaking valve outlet is connected with the negative pressure suction working port of the equipment main module through a fourth air path.

[0016] Furthermore, the air-controlled valve unit also includes an air-controlled valve body, a partition is provided in the air-controlled valve body, the partition divides the inner cavity of the air-controlled valve body into an upper mounting cavity and a lower mounting cavity, the vacuum valve is arranged in the upper mounting cavity, the air-breaking valve is arranged in the lower mounting cavity, a valve stem A is movably provided in the vacuum valve, an upper cavity of the valve stem A is provided between the upper end surface of the valve stem A and the air-controlled valve body, a lower cavity of the valve stem A is provided between the lower end surface of the valve stem A and the partition, a valve stem B is movably provided in the air-breaking valve, an upper cavity of the valve stem B is provided between the upper end surface of the valve stem B and the partition, a lower cavity of the valve stem B is provided between the lower end surface of the valve stem B and the air-controlled valve body, the vacuum control airway is connected with the upper cavity of the valve stem A, and the air-breaking control airway is connected with both the lower cavity of the valve stem A and the upper cavity of the valve stem B.

[0017] Furthermore, a nozzle assembly is detachably provided inside the vacuum generator, wherein an air inlet of the nozzle assembly is connected to an air outlet of the vacuum valve, and an air outlet of the nozzle assembly is connected to an exhaust confluence channel; the nozzle assembly comprises a primary nozzle, a secondary nozzle and a receiving tube connected in sequence, at least a Laval nozzle is used inside the primary nozzle, a suction side hole corresponding to the Laval nozzle is provided on the nozzle assembly, and the primary nozzle and the secondary nozzle, as well as the secondary nozzle and the receiving tube are detachably connected by connecting grooves and protrusions.

[0018] After adopting the above structure, the beneficial effects of the present invention are: The valve island type vacuum generator system described in the present invention includes a plurality of vacuum generators and a plurality of bases corresponding to the vacuum generators. The plurality of bases are stacked along the X-axis direction, and each of the vacuum generators is removably plugged and matched with the corresponding base to form a mechanical connection and an electrical connection between the two. When the vacuum generator fails or needs to be repaired, there is no need to disassemble the entire valve island assembly. By pulling the latch forward and moving the latch from the first position to the second position, the vacuum generator and the base can be released from the fixed connection, so that the vacuum generator can be removed from the corresponding base. The structure is simple and easy to operate, which saves time for disassembling the vacuum generator and improves work efficiency. Similarly, when installing the vacuum generator, the vacuum generator is inserted into the base and the latch is moved from the second position to the first position to achieve a fixed connection between the vacuum generator and the base, which greatly facilitates the installation of the vacuum generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the specific embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 (with a cover plate); Figure 3 It is an exploded view of the overall structure of the present invention (with a cover plate); Figure 4 It is a transverse cross-sectional view of the overall structure of the present invention. Figure 1 ; Figure 5 It is a transverse cross-sectional view of the overall structure of the present invention. Figure 2 ; Figure 6 It is a transverse cross-sectional view of the overall structure of the present invention. Figure 3 ; Figure 7 The longitudinal section of the vacuum generator of the present invention and the base are connected in cooperation Figure 1 ; Figure 8 This is a longitudinal cross-sectional view of the vacuum generator of the present invention in cooperation with the base. Figure 2 ; Fig. 9 This is a longitudinal cross-sectional view of the vacuum generator of the present invention in cooperation with the base. Figure 3 ; Fig.10 The present invention Fig. 9 A schematic diagram of the structure at A; Fig.11 The longitudinal section of the vacuum generator of the present invention and the base are connected in cooperation Figure 4 ; Fig.12 This is a longitudinal cross-sectional view of the vacuum generator of the present invention in cooperation with the base. Figure 5 ; Fig.13 The longitudinal section of the vacuum generator of the present invention and the base are connected in cooperation Figure 6 ; Fig.14 The control box of the present invention is connected with the first mounting seat, the base and the second mounting seat. Figure 1 ; Fig.15 The control box of the present invention is connected with the first mounting seat, the base and the second mounting seat. Figure 2 (with a cover plate); Fig.16 is a schematic diagram of the matching connection between the vacuum generator and the latch of the present invention (the latch is in the first position); Fig.17 The present invention Fig.16A schematic diagram of the structure at B; Fig.18 is a three-dimensional schematic diagram of a vacuum generator of the present invention; Fig.19 The present invention Fig.18 A schematic diagram of the structure at position C of FIG. Fig. 20 is an exploded view of the vacuum generator of the present invention; Fig.21 It is a three-dimensional schematic diagram of the cooperative connection between the base and the latch of the present invention; Fig. 22 is a three-dimensional schematic diagram of the latch of the present invention; Fig.23 is a three-dimensional schematic diagram of a cover plate of the present invention; Fig.24 It is a three-dimensional schematic diagram of the nozzle assembly of the present invention.

[0021] Figures 1 to 24 The bid number is: 1. Vacuum generator; 11. Generator air inlet; 12. Generator air outlet; 13. Circuit board B; 131. Fourth electrical signal plug interface; 14. First plug part; 141. Locking groove; 15. Second plug part; 151. Locking buckle; 1511. Gap; 1512. Protrusion; 1513. Guide slope; 1514. Stop slope; 16. Third plug part; 161. Third locking port; 2. Base; 21. Base air inlet; 22. Base air outlet; 23. Air inlet duct; 24. Air outlet duct; 25. Circuit board A; 251. First electrical signal plug interface; 252. Second electrical signal plug interface; 253. Third electrical signal plug interface; 26. First socket; 27. Second socket; 28. First sealing ring; 29. Cover plate; 291. First blocking block; 2911. Second sealing ring; 292. Second blocking block; 2921. Third sealing ring; 3. First mounting seat; 31. Circuit board C; 311. Fifth electrical signal plug interface; 312. Seventh electrical signal plug interface; 32. Connector; 4. Second mounting seat; 41. Positive pressure centralized air inlet; 42. Mounting seat air inlet duct; 43. Centralized exhaust port; 431. Silencer; 432. Fourth sealing ring; 44. Mounting seat exhaust duct; 5. Control box; 51. Circuit board D; 511. Sixth electrical signal plug interface; 6. Latch; 61. First locking port; 611. Large end; 612. Small end; 62. Second locking port; 63. Lock tongue; 64. Vertical portion; 65. Handle ;7. Equipment main body module;71. First air circuit;72. Second air circuit;73. Third air circuit;74. Fourth air circuit;75. Negative pressure suction working port;751. Negative pressure suction chamber;76. First wedge-shaped positioning groove;77. Second wedge-shaped positioning groove;78. Throttle valve;79. Filter device;791. Buckle structure;7911. Buckle;7912. Slot;8. Valve assembly module;81. Vacuum valve;811. Vacuum valve air inlet;812. Vacuum valve air outlet;813. Valve stem A;814. Vacuum manual lever;82. Breaking valve;821. Breaking valve air inlet;822. Breaking valve air outlet;823. Valve stem B;83. Vacuum pilot valve;84. Breaking pilot valve;841. Breaking manual lever;85. Pilot air intake confluence channel; 86, vacuum control airway; 87, air-breaking control airway; 88, air control valve body; 881, partition; 882, upper mounting cavity; 883, lower mounting cavity; 891, first wedge-shaped positioning block; 892, second wedge-shaped positioning block; 9, pressure gauge module; 91, pressure sensor; 10, nozzle assembly; 101, nozzle assembly air inlet; 102, nozzle assembly air outlet; 103, first-stage nozzle; 1031, connecting groove; 1032, raised portion; 104, second-stage nozzle; 105, receiving tube; 106, suction side hole; 1061, first suction side hole; 1062, second suction side hole; 107, fifth sealing ring; 108, chamber; 109, handle; 110, air intake confluence channel;120. Exhaust confluence channel. ; DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0024] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly defined and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or the like, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the present invention are for illustrative purposes only and do not represent the only implementation method.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] like Figures 1 to 24As shown, a valve island type vacuum generator system includes a plurality of vacuum generators 1, and also includes a plurality of bases 2 corresponding to the vacuum generators 1 one by one, the plurality of bases 2 are stacked along the X-axis direction, each of the vacuum generators 1 is detachably plugged and matched with the corresponding base 2, so that the two are mechanically and electrically connected; the base 2 is provided with a base air inlet 21 and a base exhaust port 22, and the base 2 is provided with an air inlet duct 23 connected to the base air inlet 21 and an air exhaust port 22 connected to the base exhaust port 23. 2, when several bases 2 are stacked, the positions of the air inlet ducts 23 correspond and are interconnected to form an air inlet converging channel 110, and the positions of the air outlet ducts 24 correspond and are interconnected to form an exhaust converging channel 120, and the air inlet converging channel 110 and the exhaust converging channel 120 are arranged separately from each other; the vacuum generator 1 is provided with a generator air inlet 11 corresponding to the base air inlet 21, and a generator air outlet 12 corresponding to the base exhaust port 22. A circuit board A25 is provided in each of the bases 2, and the circuit board A25 is respectively provided with a first electrical signal plug interface 251, a second electrical signal plug interface 252 and a third electrical signal plug interface 253, wherein any two adjacent bases 2 are plugged in and matched with each other through the corresponding first electrical signal plug interface 251 and the second electrical signal plug interface 252 to achieve electrical connection between the two adjacent bases 2; a circuit board B13 is provided inside the vacuum generator 1, and the circuit board B13 is provided with a fourth electrical signal plug interface 131 which is plugged in and matched with the third electrical signal plug interface 253 to achieve electrical connection between the vacuum generator 1 and the base 2. It also includes a first mounting seat 3 and a second mounting seat 4, and a plurality of bases 2 are serially connected between the first mounting seat 3 and the second mounting seat 4 along the X-axis direction. The first mounting seat 3 is provided with a circuit board C31, and the circuit board C31 is provided with a fifth electrical signal plug interface 311. The fifth electrical signal plug interface 311 is plugged into and matched with the first electrical signal plug interface 251 of the base 2 located at the outermost side to realize the electrical connection between the first mounting seat 3 and the base 2 at the outermost side.

[0030] Based on the above embodiments, the present invention aims to provide a valve island type vacuum generator system, including a plurality of vacuum generators 1, and a plurality of bases 2 corresponding to the vacuum generators 1, the plurality of bases 2 are stacked along the X-axis direction, and each of the vacuum generators 1 is removably plugged and matched with the corresponding base 2, so that the two are mechanically and electrically connected. When the vacuum generator 1 fails or needs to be repaired, it is not necessary to disassemble the entire valve island assembly. By pulling the latch 6 forward and moving the latch 6 from the first position to the second position, the vacuum generator 1 and the base 2 can be released from the fixed connection, so that the vacuum generator 1 can be removed from the corresponding base 2. The structure is simple and easy to operate, which saves the time of disassembling the vacuum generator 1 and improves the work efficiency. Similarly, when installing the vacuum generator 1, the vacuum generator 1 is inserted into the base 2, and the latch 6 is moved from the second position to the first position to achieve the fixed connection between the vacuum generator 1 and the base 2, which greatly facilitates the installation of the vacuum generator 1.

[0031] In this embodiment, if Figure 3 As shown, the first mounting seat 3, the second mounting seat 4 and the base 2 are provided with a connector 32 transversely through them to realize the detachable connection of the first mounting seat 3, the second mounting seat 4 and the base 2. The expansion function of the base assembly is realized by detachably providing a plurality of bases 2 between the first mounting seat 3 and the second mounting seat 4. When the number of bases 2 needs to be increased, the connector 32 is loosened and taken out. After the required number of bases 2 is increased, the first mounting seat 3, the base 2 and the second mounting seat 4 are fastened with the connector 32. At the same time, a spare base 2 can also be configured to facilitate customers to expand the vacuum generator 1. For example, when N vacuum generators 1 need to be used, N+1 bases 2 are assembled between the first mounting seat 3 and the second mounting seat 4, and a cover plate 29 is installed on one of the bases 2. When the N+1th base 2 needs to be activated, the cover plate 29 only needs to be removed and the vacuum generator 1 is plugged into the spare base 2.

[0032] In this embodiment, if Figure 3 , Figure 5 and 6As shown in the figure, the first mounting seat 3 and / or the second mounting seat 4 are provided with a positive pressure centralized air inlet 41, a mounting seat air inlet passage 42 for connecting the positive pressure centralized air inlet 41 with the air inlet converging channel 110, and the first mounting seat 3 and / or the second mounting seat 4 are provided with a centralized exhaust port 43, and a mounting seat exhaust passage 44 for connecting the centralized exhaust port 43 with the exhaust converging channel 120. The arrangement of the positive pressure centralized air inlet 41 and the air inlet converging channel 110 enables the vacuum generator system to achieve unified air intake; the arrangement of the centralized exhaust port 43 and the exhaust converging channel 120 enables the vacuum generator system to achieve unified exhaust. In a further embodiment, the base 2 is provided with a base air inlet 21 and a base air outlet 22, and the base 2 is provided with an air inlet duct 23 connected to the base air inlet 21 and an air outlet duct 24 connected to the base air outlet 22. When a plurality of bases 2 are stacked, the positions of the air inlet ducts 23 correspond and are connected to each other to form an air inlet confluence channel 110, and the positions of the air outlet ducts 24 correspond and are connected to each other to form an air outlet confluence channel 120, and the air inlet confluence channel 110 and the air outlet confluence channel 120 are arranged separately from each other. The vacuum generator 1 is provided with a generator air inlet 11 corresponding to the base air inlet 21 and a generator air outlet 12 corresponding to the base air outlet 22. Through the design of this structure, the vacuum generator 1 is connected to the intake confluence channel 110 through the generator air inlet 11 set at the bottom thereof, and is connected to the exhaust confluence channel 120 through the generator air outlet 12 set at the bottom thereof, so as to realize the unified intake and exhaust of the vacuum generator system. The mechanism of unified intake and unified exhaust is set in the base 2. When the vacuum generator 1 needs to be replaced, it is only necessary to disassemble the vacuum generator 1 without disassembling the entire valve island assembly, making the repair and maintenance of the vacuum generator 1 more convenient. Furthermore, the unified intake and unified exhaust method is adopted, so that each vacuum generator 1 does not need to be additionally provided with an intake assembly (such as an air pipe, etc.) and a silencer 431, which is conducive to reducing the cost of the vacuum generator system.

[0033] In this embodiment, if Figure 4 and Fig. 9As shown, each of the bases 2 is provided with a circuit board A25, and the circuit board A25 is respectively provided with a first electrical signal plug interface 251, a second electrical signal plug interface 252 and a third electrical signal plug interface 253, wherein any two adjacent bases 2 are plugged in and matched with each other through the corresponding first electrical signal plug interface 251 and the second electrical signal plug interface 252 to achieve electrical connection between the two adjacent bases 2; the vacuum generator 1 is provided with a circuit board B13 inside, and the circuit board B13 is provided with a fourth electrical signal plug interface 131 plugged in and matched with the third electrical signal plug interface 253 to achieve electrical connection between the vacuum generator 1 and the base 2. The first electrical signal plug interface 251 is a first row of pins, the second electrical signal plug interface 252 is a first row of females; the third electrical signal plug interface 253 is a second row of females, and the fourth electrical signal plug interface 131 is a second row of pins. The first row of pins and the first row of females are plugged in and the second row of pins and the second row of females are plugged in to replace the traditional wiring harness connection. This structural design makes the electrical connection between the adjacent bases 2 and between the vacuum generator 1 and the base 2 more convenient. There is no need to sort out the wiring harness and then connect it to the corresponding end. It is only necessary to insert the first row of pins into the first row of females and the second row of pins into the second row of females. The first row of pins and the first row of females, and the second row of pins and the second row of females are used to realize a detachable connection structure, which has the characteristics of easy disassembly and assembly and simple maintenance. In addition, this structure makes the overall structure of the installed vacuum generator system more compact and beautiful.

[0034] As another preferred embodiment of the present invention, it further comprises a control box 5, which is fixedly connected to the first mounting seat 3, and a circuit board D51 is arranged in the control box 5, and the circuit board D51 is provided with a sixth electrical signal plug interface 511, and the circuit board C31 is provided with a seventh electrical signal plug interface 312 which is plugged and matched with the sixth electrical signal plug interface 511, so as to realize the electrical connection between the control box 5 and the first mounting seat 3. In this embodiment, as Figure 3 and Figure 4 As shown, the sixth electrical signal plug interface 511 is a first row of pins, and the seventh electrical signal plug interface 312 is a first row of females. The first row of pins and the first row of females are plugged in to replace the traditional wiring harness connection. This structural design makes the electrical connection between the control box 5 and the first mounting seat 3 more convenient. There is no need to sort out the wiring harness and then connect it to the corresponding end. It is only necessary to insert the first row of pins into the first row of females. In addition, this structure makes the overall structure of the vacuum generator system after installation more compact and beautiful.

[0035] As another preferred embodiment of the present invention, a plug part is provided at the bottom of the vacuum generator 1, and a socket is provided at the base 2 for cooperating with the plug part, and the plug part is plugged and matched with the socket to realize the connection between the vacuum generator 1 and the base 2; a latch 6 for locking and cooperating with the plug part is slidably provided in the base 2, and the latch 6 can slide between a first position and a second position relative to the base 2; when the latch 6 is in the first position, the latch 6 locks the plug part, so that the vacuum generator 1 is fixedly connected to the base 2; when the latch 6 is in the second position, the latch 6 releases the lock on the plug part, so that the vacuum generator 1 and the base 2 are released from the fixed connection. The plug part includes a first plug part 14, a second plug part 15 and a third plug part 16 arranged at the bottom of the vacuum generator 1, and the socket includes a first socket 26 corresponding to the first plug part 14 and a second socket 27 corresponding to the third plug part 16; the side edge of the bottom of the first plug part 14 is provided with a locking groove 141 arranged along the sliding direction of the latch 6, and the latch 6 is provided with a first locking mouth 61 that is locked and matched with the locking groove 141; the second plug part 15 is provided with a locking buckle 151, and the latch 6 is provided with a second locking mouth 62 that is locked and matched with the locking buckle 151; the bottom side wall of the third plug part 16 is provided with a third locking mouth 161, and the latch 6 is provided with a locking tongue 63 that is locked and matched with the third locking mouth 161.

[0036] In this embodiment, if Fig.16 , Fig.17 and Fig. 22 As shown, the latch 6 can slide between the first position and the second position of the base 2 relative to the base 2. When the latch 6 is located at the first position, the locking buckle 151 is inserted into the second locking opening 62 to achieve locking cooperation, and the first plug part 14 slides into the small end 612 of the first locking opening 61 to achieve locking cooperation between the locking groove 141 and the small end 612. The locking tongue 63 is inserted into the third locking opening 161 to achieve locking cooperation, so as to achieve fixed connection between the vacuum generator 1 and the base 2. At this time, the vacuum generator 1 cannot be removed from the base 2; when it is necessary to move the latch 6 from the first position to the second position, the latch 6 is pulled forward by the handle 65, so that the locking buckle 151 is disengaged from the second locking opening 62, the locking groove 141 slides into the large opening end 611 of the first locking opening 61, and the locking tongue 63 is disengaged from the third locking opening 161, so as to release the fixed connection between the vacuum generator 1 and the base 2. At this time, the vacuum generator 1 can be removed from the base 2.

[0037] In a further embodiment, the second plug portion 15 is provided with two locking buckles 151 that cooperate with the second locking opening 62, the two locking buckles 151 both extend forward relative to the second plug portion 15, a gap 1511 is formed between the two locking buckles 151 for the locking buckles 151 to deform, and the surfaces of the two locking buckles 151 that are separated from each other are provided with protrusions 1512, and the protrusions 1512 are provided with guide slopes 1513 and locking slopes 1514 that respectively cooperate with the second locking opening 62. Fig.18 and 19 As shown in the figure, the setting of the gap 1511 reserves deformation space for the deformation of the locking buckle 151. When the locking buckle 151 is inserted into the second locking opening 62, the two locking buckles 151 approach each other, so that the protrusion 1512 can enter the second locking opening 62. After entering the second locking opening 62, the locking buckle 151 recovers under the action of its own elastic force to achieve the locking function. The setting of the guide slope 1513 facilitates the locking buckle 151 to drive the protrusion 1512 to insert into the second locking opening 62, and the setting of the locking slope 1514 is used for locking with the second locking opening 62. In a further embodiment, the inclination angle of the locking slope 1514 is larger than the inclination angle of the guide slope 1513, so that the locking slope 1514 can achieve locking with the second locking opening 62, so that the latch 6 remains in a state of locking with the locking buckle 151.

[0038] In a further embodiment, the first locking opening 61 includes a large opening end 611 for the first plug portion 14 to enter and a small opening end 612 for locking with the first plug portion 14. Fig. 22 As shown, when the vacuum generator 1 needs to be locked with the base 2, the first plug part 14 enters through the large mouth end 611, and moves the latch 6 from the second position of the base 2 to the first position of the base 2. At this time, the first plug part 14 slides into the small mouth end 612, and the lock groove 141 forms a locking fit at the small mouth end 612; when the vacuum generator 1 needs to be disengaged from the locking fit with the base 2, the first plug part 14 slides from the small mouth end 612 into the large mouth end 611, so that the first plug part 14 can be pulled out from the large mouth end 611.

[0039] In a further embodiment, a cover plate 29 is further included. When the vacuum generator 1 is not required to be arranged on the base 2, the base air inlet 21 and the base air outlet 22 of the base 2 are blocked by the cover plate 29. The bottom of the cover plate 29 is provided with a first block 291 corresponding to the base air inlet 21 and a second block 292 corresponding to the base air outlet 22. Fig.23As shown, the provision of the cover plate 29 facilitates the configuration of the spare base 2, so as to facilitate the customer to expand the vacuum generator 1. For example, when N vacuum generators 1 are needed, N+1 bases 2 are assembled between the first mounting seat 3 and the second mounting seat 4, and the cover plate 29 is installed on one of the bases 2. When the N+1th base 2 needs to be activated, it is only necessary to remove the cover plate 29 and plug the vacuum generator 1 into the spare base 2. Of course, two or more spare bases 2 can also be provided, that is, two or more bases 2 with cover plates 29 are configured. In this embodiment, the detachable connection mechanism between the cover plate 29 and the base 2 is the same as the detachable connection mechanism between the vacuum generator 1 and the base 2, which will not be repeated here.

[0040] In a further embodiment, Figure 3 As shown, a second sealing ring 2911 is provided between the first blocking block 291 and the base air inlet 21, and a third sealing ring 2921 is provided between the second blocking block 292 and the base exhaust port 22. The provision of the second sealing ring 2911 increases the sealing performance between the base air inlet 21 and the first blocking block 291; the provision of the third sealing ring 2921 increases the sealing performance between the base exhaust port 22 and the second blocking block 292.

[0041] In a further embodiment, a first sealing ring 28 is provided between the first mounting seat 3 and the base 2, between adjacent bases 2, and between the base 2 and the second mounting seat 4. The first sealing ring 28 is provided to prevent leakage of gas in the intake merging channel 110 and the exhaust merging channel 120.

[0042] As another preferred embodiment of the present invention, the vacuum generator 1 is detachably provided with a nozzle assembly 10 inside, the nozzle assembly air inlet 101 of the nozzle assembly 10 is connected to the vacuum valve air outlet 812, and the nozzle assembly air outlet 102 of the nozzle assembly 10 is connected to the exhaust confluence channel 120; the nozzle assembly 10 includes a primary nozzle 103, a secondary nozzle 104 and a receiving tube 105 connected in sequence, at least the primary nozzle 103 has a Laval nozzle inside, and a suction side hole 106 corresponding to the Laval nozzle is provided on the nozzle assembly 10, and the primary nozzle 103 and the secondary nozzle 104, and the secondary nozzle 104 and the receiving tube 105 are detachably connected by a connecting groove 1031 and a protrusion 1032. In this embodiment, Fig.10 and Fig.24As shown, the first Laval nozzle is used inside the first-stage nozzle 103, and the second Laval nozzle is used inside the second-stage nozzle 104. The suction side hole 106 includes a first suction side hole 1061 corresponding to the first Laval nozzle and a second suction side hole 1062 corresponding to the second Laval nozzle. The first-stage nozzle 103, the second-stage nozzle 104 and the receiving tube 105 are connected in series in sequence along the axial direction, and the connection relationship is stable and reliable, not easy to separate, and easy to disassemble and assemble. After the gas passes through the first Laval nozzle, it passes through the second Laval nozzle to generate a secondary vacuum. Through this bipolar vacuum structural design, the flow rate of the product when vacuuming is very large, and the vacuuming speed is faster.

[0043] In a further embodiment, the nozzle assembly 10 also includes a mounting head connected to the receiving tube 105, one end of the mounting head extends out of the device main body module 7, and the end of the mounting head extending out of the device main body module 7 is provided with a handle portion 109. The mounting head and the receiving tube 105 are detachably connected using a connecting groove 1031 and a protrusion 1032. A chamber 108 for installing the nozzle assembly 10 is provided inside the device main body module 7, and the side wall of the mounting head is provided with a limiting portion extending radially outward, and the inner wall of the chamber 108 is provided with a limiting groove circumferentially for sliding cooperation with the limiting portion, and the inner wall of the chamber 108 is also provided with a notch groove connected to the limiting groove, and the notch groove extends outward along the axial direction of the chamber 108. When the mounting head rotates relative to the chamber 108, the limiting portion is driven to rotate in the limiting groove, and when the limiting portion rotates to align with the notch groove, the limiting portion can slide out of the notch groove to release the limit. Fig.10 and Fig.24 As shown, when the nozzle assembly 10 needs to be repaired or replaced, the user can use the handle 109 to screw the installation head to drive the nozzle assembly 10 to rotate. When the limiting portion is rotated to be aligned with the notch groove, the installation head and the nozzle assembly 10 can be pulled out by the handle 109 for cleaning and maintenance. During installation, the nozzle assembly 10 is inserted into the chamber 108, and the limiting portion is aligned with the notch groove and inserted. After insertion, the installation head and the nozzle assembly 10 are driven to rotate in the chamber 108 by the handle 109, so that the limiting portion enters the limiting groove through the notch groove, plays a limiting role, and prevents the nozzle assembly 10 from unexpectedly slipping out of the chamber 108.

[0044] In a further embodiment, a fifth sealing ring 107 is provided at the connection between the primary nozzle 103 and the secondary nozzle 104, and at the connection between the secondary nozzle 104 and the receiving tube 105. Fig.10 and Fig.24 As shown, the fifth sealing ring 107 is sealed with the inner wall of the chamber 108 to prevent air leakage.

[0045] As another preferred embodiment of the present invention, the vacuum generator 1 includes an equipment main body module 7, a valve assembly module 8 and a pressure gauge module 9, the pressure gauge module 9 and the valve assembly module 8 are both installed to the equipment main body module 7, the valve assembly module 8 includes an air-controlled valve unit and a control valve unit connected to the air-controlled valve unit, the air-controlled valve unit includes a vacuum valve 81 and a piercing valve 82, the control valve unit includes a vacuum pilot valve 83 for controlling the operation of the vacuum valve 81 and a piercing pilot valve 84 for controlling the operation of the piercing valve 82; the equipment main body module 7 is provided with a negative pressure suction working port 75. The control valve unit is provided with a pilot air intake converging channel 85, a vacuum control air channel 86 and a piercing air control air channel 87. The pilot air intake converging channel 85 is connected to the vacuum pilot valve 83 and the piercing air pilot valve 84 respectively, the vacuum control air channel 86 is connected to the vacuum pilot valve 83 and the vacuum valve 81 respectively, and the piercing air control air channel 87 is connected to the piercing air pilot valve 84 and the piercing air valve 82 respectively; the air control valve unit is provided with a vacuum valve air inlet 811 and a vacuum valve air outlet 812 corresponding to the vacuum valve 81, and a vacuum valve air outlet 813 corresponding to the piercing air valve 82. The air-breaking valve air inlet 821 and the air-breaking valve air outlet 822 should be coordinated, the air-breaking valve air inlet 821 is always connected with the pilot air inlet convergence channel 85; the vacuum valve air inlet 811 is connected with the generator air inlet 11 through the first air path 71, the vacuum valve air outlet 812 is connected with the generator air outlet 12 through the second air path 72, the air-breaking valve air inlet 821 is connected with the generator air inlet 11 through the third air path 73, and the air-breaking valve air outlet 822 is connected with the negative pressure suction working port 75 of the equipment main module 7 through the fourth air path 74. The air-controlled valve unit also includes an air-controlled valve body 88, in which a partition 881 is provided, and the partition 881 divides the inner cavity of the air-controlled valve body 88 into an upper mounting cavity 882 and a lower mounting cavity 883. The vacuum valve 81 is provided in the upper mounting cavity 882, and the air-breaking valve 82 is provided in the lower mounting cavity 883. A valve stem A813 is movably provided in the vacuum valve 81, and a valve stem A813 is provided between the upper end surface of the valve stem A813 and the air-controlled valve body 88. The upper chamber, the lower chamber of valve stem A is provided between the lower end surface of valve stem A813 and the partition 881, the valve stem B823 is movably provided in the air-breaking valve 82, the upper chamber of valve stem B is provided between the upper end surface of valve stem B823 and the partition 881, the lower chamber of valve stem B is provided between the lower end surface of valve stem B823 and the air-controlled valve body 88, the vacuum control airway 86 is connected with the upper chamber of valve stem A, and the air-breaking control airway 87 is connected with both the lower chamber of valve stem A and the upper chamber of valve stem B. The partition 881 is provided with an air vent for connecting the lower chamber of valve stem A and the upper chamber of valve stem B. The pilot air intake confluence channel 85 is always connected with the air-breaking valve air inlet 821, that is, the pilot air intake confluence channel 85 is always connected with the positive pressure air source.

[0046] In this embodiment, the air-breaking valve 82 is provided with a reset spring B for controlling the reset of the valve stem B823. It should be noted that the valve stem A813 can also achieve the reset function by moving upward under the action of air pressure. Therefore, the user can selectively assemble the reset spring A for resetting the valve stem A813 according to their actual needs. When the user chooses not to assemble the reset spring A in the lower cavity of the valve stem A, the vacuum generator 1 has a power-off holding function. Specifically, after the suction cup installed at the negative pressure suction working port 75 adsorbs the product and there is a sudden power outage during the transportation process, the valve stem A813 will not automatically reset, but will always remain in the current position. At this time, the suction cup will always remain in the working state of adsorbing the product and will not release the product. This function helps to protect the adsorbed product and avoid the adsorbed product from being released during transportation due to power outage and causing damage.

[0047] The valve island type vacuum generator system described in the present invention can realize multiple functions, such as vacuuming and breaking air operations. Through modular design, the overall structure becomes more compact, thereby saving installation space and facilitating installation and subsequent maintenance work. The connections between various components are tighter, reducing the possibility of leakage, and can achieve efficient collaborative work. It can not only draw vacuum from the system to achieve the required vacuum degree, but also quickly break the vacuum state when needed and restore to a normal atmospheric pressure environment. This vacuum generator system can meet the diverse needs under complex working conditions, thereby significantly improving work efficiency.

[0048] Specifically, in this embodiment, the vacuum valve 81 and the air-breaking valve 82 are both two-position two-way air-controlled valves, and the vacuum pilot valve 83 and the air-breaking pilot valve 84 are both two-position three-way solenoid valves; the vacuum valve air inlet 811 of the vacuum valve 81 is connected to the generator air inlet 11 through the first air path 71, and the vacuum valve air outlet 812 of the vacuum valve 81 is connected to the nozzle assembly air inlet 101 through the second air path 72; the air-breaking valve air inlet 821 of the air-breaking valve 82 is connected to the generator air inlet 11 through the third air path 73, and the air-breaking valve air outlet 822 of the air-breaking valve 82 is connected to the negative pressure suction working port 75 through the fourth air path 74. The chamber 108 is provided with a first side wall hole corresponding to the first suction side hole 1061 and a second side wall hole corresponding to the second suction side hole 1062; a second one-way valve flap is provided at the second side wall hole, and a first one-way valve flap can be selectively provided at the first side wall hole. In this embodiment, if Fig. 9 As shown, a first one-way valve flap is arranged at the first side wall hole, and a second one-way valve flap is arranged at the second side wall hole.

[0049] Working process: the positive pressure gas source takes in air through the positive pressure concentrated air inlet 41, and the positive pressure gas entering from the positive pressure concentrated air inlet 41 is divided into two paths, one path is through the base air inlet 21, the generator air inlet 11, and the first air path 71 to reach the vacuum valve air inlet 811 of the vacuum valve 81; the other path is through the base air inlet 21, the generator air inlet 11, and the third air path 73 to reach the air-breaking valve air inlet 821 of the air-breaking valve 82. When the vacuum valve 81 needs to work, the vacuum pilot valve 83 works, so that the vacuum control airway 86 is opened, the valve stem A813 moves downward, the vacuum valve outlet 812 of the vacuum valve 81 is connected with the vacuum valve inlet 811, and the positive pressure gas enters the nozzle assembly inlet 101 of the nozzle assembly 10 through the second air path 72; when the positive pressure gas flows through the nozzle assembly 10, a negative pressure is generated around the nozzle assembly 10, that is, a high negative pressure is generated around the first-level nozzle 103, and a low negative pressure is generated around the second-level nozzle 104, driving the negative pressure suction working port 75 to inhale, and the air pressure difference between the chamber 108 and the negative pressure suction chamber 751 causes the first one-way valve flap and the second one-way valve flap to open. When the negative pressure value generated in the chamber 108 is less than the negative pressure value of the second suction side hole 1062, the second one-way valve flap is closed, and the first one-way valve flap is still open to achieve inhalation; at this time, the valve stem B823 does not move, and the air-breaking valve 82 does not work. When the air-breaking valve 82 needs to work, the air-breaking pilot valve 84 controls the air-breaking control airway 87 to open, the valve stem A813 moves up, the valve stem B823 moves down, the vacuum valve 81 does not work, the air-breaking valve outlet 822 of the air-breaking valve 82 is connected with the air-breaking valve inlet 821, and the positive pressure gas will be divided into two paths after coming out of the air-breaking valve outlet 822. The first path of gas passes through the throttle of the throttle valve 78 and reaches the negative pressure suction working port 75 through the fourth gas path 74 to break the air and discharge; the second path of gas enters the filter device 79, the negative pressure suction chamber 751 and the nozzle assembly 10, and is finally discharged from the centralized exhaust port 43. The setting of the second path of gas ensures that the air-breaking pressure reaching the negative pressure suction working port 75 will not be too high, which is conducive to protecting the adsorbed product. When the air-breaking control airway 87 is closed, the valve stem B823 is reset under the action of the reset spring B.

[0050] In this embodiment, a first one-way valve flap is provided at the first suction side hole 1061. The setting of the first one-way valve flap enables the vacuum generator 1 to have the function of maintaining vacuum. Specifically, when the product has been adsorbed and the pressure gauge module 9 measures that the negative pressure value reaches a preset value, such as -80Kpa, the vacuum valve 81 stops working and the first one-way valve flap closes, so that the negative pressure value in the negative pressure suction chamber 751 is maintained within a preset range. At this time, the vacuum generator 1 will not continue to consume positive pressure gas, thereby greatly reducing the consumption of positive pressure gas.

[0051] In a further embodiment, the vacuum valve 81 is provided with a vacuum manual lever 814, and the air-breaking pilot valve 84 is provided with an air-breaking manual lever 841. In an initial state, the vacuum valve air inlet 811 of the vacuum valve 81 is not connected to the vacuum valve air outlet 812. When the vacuum manual lever 814 is pressed, the vacuum valve air inlet 811 of the vacuum valve 81 is connected to the vacuum valve air outlet 812; in an initial state, the air-breaking valve air inlet 821 of the air-breaking valve 82 is not connected to the air-breaking valve air outlet 822. When the air-breaking manual lever 841 is pressed, the air-breaking valve air inlet 821 of the air-breaking valve 82 is connected to the air-breaking valve air outlet 822. By providing the vacuum manual lever 814 and the air-breaking manual lever 841, both electrical control and manual control can be realized. In the event of insufficient power supply or failure, the user can perform manual control operations to ensure the normal operation of the equipment. The dual control method greatly improves the reliability and flexibility of the equipment. In this embodiment, if Figure 3 As shown, since the vacuum generator 1 is a sheet-like structure, and in order to make the structure of the vacuum generator 1 compact, the vacuum manual rod 814 is arranged on the vacuum valve 81. The specific structures of the vacuum pilot valve 83, the air-breaking pilot valve 84 and the air-breaking manual rod 841 can refer to a solenoid control valve disclosed in a Chinese invention patent application (publication number: CN110657276A). In view of the fact that the basic structures / principles of the vacuum pilot valve 83, the air-breaking pilot valve 84 and the air-breaking manual rod 841 have been disclosed in detail in the prior art, they will not be described in detail in this embodiment.

[0052] In a further embodiment, the valve assembly module 8 is provided with a first wedge-shaped positioning block 891 and a second wedge-shaped positioning block 892, and the device main body module 7 is provided with a first wedge-shaped positioning groove 76 corresponding to the first wedge-shaped positioning block 891 and a second wedge-shaped positioning groove 77 corresponding to the second wedge-shaped positioning block 892. The valve assembly module 8 is quickly positioned with the device main body module 7 by the cooperation of the first wedge-shaped positioning block 891 with the first wedge-shaped positioning groove 76, and the cooperation of the second wedge-shaped positioning block 892 with the second wedge-shaped positioning groove 77, and then the valve assembly module 8 is fixedly installed to the device main body module 7 by a bolt, so that the valve assembly module 8 can be quickly and conveniently fixedly installed to the device main body module 7. In addition, in the process of tightening the bolts, the first wedge-shaped positioning block 891 and the first wedge-shaped positioning groove 76, and the second wedge-shaped positioning block 892 and the second wedge-shaped positioning groove 77 are gradually wedged, so that the connection between the valve assembly module 8 and the device main body module 7 is tight and stable.

[0053] In a further embodiment, the pressure gauge module 9 is provided with a pressure sensor 91, and the detection end of the pressure sensor 91 extends into the negative pressure suction chamber 751 to detect the negative pressure data in the negative pressure suction chamber 751. Fig.11As shown, the energy-saving function of the vacuum generator 1 is realized by setting a pressure sensor 91. Specifically, the pressure sensor 91 detects the negative pressure data in the negative pressure suction chamber 751, and after comparing the pressure value with the preset pressure range, the vacuum pilot valve 83 is switched between the on and off states, so that the negative pressure value in the negative pressure suction chamber 751 is maintained within a preset and stable range, preventing the adsorbed object from falling, and greatly reducing the consumption of positive pressure gas.

[0054] As another preferred embodiment of the present invention, the vacuum generator 1 further includes a throttle valve 78, which is arranged on the fourth gas path 74 and located between the air-breaking valve outlet 822 and the negative pressure suction working port 75. The positive pressure gas flowing out of the air-breaking valve 82 reaches the negative pressure suction working port 75 after being throttled by the throttle valve 78. Fig.11 As shown, the positive pressure gas flowing out of the air-breaking valve outlet 822 of the air-breaking valve 82 passes through the throttling of the throttle valve 78 and reaches the negative pressure suction working port 75 through the fourth gas path 74 for air-breaking. The setting of the throttle valve 78 can adjust the flow rate of the air-breaking outlet, thereby avoiding the blowing away of the product due to the large air-breaking flow when adsorbing small products.

[0055] As another preferred embodiment of the present invention, a silencer 431 is provided at the centralized exhaust port 43. A fourth sealing ring 432 is provided at the silencer 431 and the centralized exhaust port 43. Figure 3 As shown, several of the vacuum generators 1 are connected to the silencer 431 via the exhaust converging channel 120, and the silencer 431 is used to perform the unified silencing and exhaust, which is beneficial to reduce the noise generated when the vacuum generator system is working. The unified exhaust method is adopted, so that each vacuum generator 1 does not need to be additionally provided with a silencer 431, which is beneficial to reduce the cost of the vacuum generator system. The provision of the fourth sealing ring 432 increases the sealing between the silencer 431 and the first mounting seat 3 and the second mounting seat 4.

[0056] As another preferred embodiment of the present invention, a negative pressure suction chamber 751 is provided inside the main body module 7 of the device, and the negative pressure suction working port 75 is connected to the suction side hole 106 of the nozzle assembly 10 through the negative pressure suction chamber 751; a filter device 79 is provided at the negative pressure suction working port 75, and the filter device 79 is detachably mounted on the vacuum generator 1 using a snap-on structure 791. In this embodiment, Fig.10 As shown, the filter device 79 is disposed between the negative pressure suction working port 75 and the negative pressure suction chamber 751 to filter the gas sucked in by the negative pressure suction working port 75 .

[0057] In a further embodiment, Figure 7As shown, the filter device 79 is provided with an elastic sheet, the elastic sheet is provided with a buckle 7911, and the device main body module 7 is provided with a slot 7912 that is engaged with the buckle 7911. The bottom of the filter device 79 is provided with a plug-in portion, and the device main body module 7 is provided with a plug-in slot for the plug-in portion to be inserted. When installing the filter device 79, the plug-in portion is inserted into the plug-in slot, and the buckle 7911 is inserted into the slot 7912. The detachable installation of the filter device 79 is achieved by the engagement of the buckle 7911 with the slot 7912, which facilitates the replacement of the filter device 79.

[0058] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the present invention.

Claims

1. A valve island type vacuum generator system, comprising a plurality of vacuum generators (1), characterized in that: Also includes: A plurality of bases (2) corresponding one to the vacuum generators (1), the plurality of bases (2) being stacked along the X-axis direction, and each of the vacuum generators (1) being removably plugged into and matched with the corresponding base (2) so that the two are mechanically and electrically connected; The base (2) is provided with a base air inlet (21) and a base air outlet (22); the base (2) is provided with an air inlet passage (23) in communication with the base air inlet (21) and an air outlet passage (24) in communication with the base air outlet (22); when a plurality of bases (2) are stacked, the positions of the air inlet passages (23) correspond and are interconnected to form an air inlet converging passage (110); the positions of the air outlet passages (24) correspond and are interconnected to form an air outlet converging passage (120); the air inlet converging passage (110) and the air outlet converging passage (120) are arranged to be separated from each other; The vacuum generator (1) is provided with a generator air inlet (11) correspondingly connected to a base air inlet (21), and a generator air outlet (12) correspondingly connected to a base air outlet (22).

2. A valve island type vacuum generator system according to claim 1, characterized in that: A circuit board A (25) is arranged inside each of the bases (2), and the circuit board A (25) is respectively provided with a first electrical signal plug interface (251), a second electrical signal plug interface (252), and a third electrical signal plug interface (253), wherein any two adjacent bases (2) are plugged in and matched with each other through the corresponding first electrical signal plug interface (251) and the second electrical signal plug interface (252), so as to realize an electrical connection between the two adjacent bases (2); a circuit board B (13) is arranged inside the vacuum generator (1), and the circuit board B (13) is provided with a fourth electrical signal plug interface (131) plugged in and matched with the third electrical signal plug interface (253), so as to realize an electrical connection between the vacuum generator (1) and the base (2).

3. A valve island type vacuum generator system according to claim 2, characterized in that: The invention also comprises a first mounting seat (3) and a second mounting seat (4), wherein a plurality of the bases (2) are connected in series between the first mounting seat (3) and the second mounting seat (4) along the X-axis direction, wherein the first mounting seat (3) is provided with a circuit board C (31), wherein the circuit board C (31) is provided with a fifth electrical signal plug interface (311), and the fifth electrical signal plug interface (311) is plugged and matched with a first electrical signal plug interface (251) of the base (2) located at the outermost side, so as to realize electrical connection between the first mounting seat (3) and the base (2) at the outermost side.

4. A valve island type vacuum generator system according to claim 3, characterized in that: The device further comprises a control box (5), the control box (5) being fixedly connected to the first mounting seat (3), a circuit board D (51) being arranged inside the control box (5), the circuit board D (51) being provided with a sixth electrical signal plug interface (511), and the circuit board C (31) being provided with a seventh electrical signal plug interface (312) which is plugged and matched with the sixth electrical signal plug interface (511), so as to realize electrical connection between the control box (5) and the first mounting seat (3).

5. The valve island type vacuum generator system according to claim 1, characterized in that: The vacuum generator (1) is provided with a plug portion at the bottom, and the base (2) is provided with a socket that cooperates with the plug portion, and the plug portion and the socket are plugged and cooperated to realize the connection between the vacuum generator (1) and the base (2); a latch (6) that is slidably provided in the base (2) and is locked with the plug portion, and the latch (6) can slide between a first position and a second position relative to the base (2); when the latch (6) is in the first position, the latch (6) locks the plug portion, so that the vacuum generator (1) and the base (2) are fixedly connected; when the latch (6) is in the second position, the latch (6) releases the lock on the plug portion, so that the vacuum generator (1) and the base (2) are released from the fixed connection.

6. A valve island type vacuum generator system according to claim 5, characterized in that: The plug part comprises a first plug part (14), a second plug part (15) and a third plug part (16) which are arranged at the bottom of the vacuum generator (1); the socket comprises a first socket (26) corresponding to the first plug part (14) and a second socket (27) corresponding to the third plug part (16); a side edge of the bottom of the first plug part (14) is provided with a locking groove (141) arranged along the sliding direction of the lock latch (6); the lock latch (6) is provided with a first locking opening (61) which is locked with the locking groove (141); the second plug part (15) is provided with a locking buckle (151), and the lock latch (6) is provided with a second locking opening (62) which is locked with the locking buckle (151); a side wall of the bottom of the third plug part (16) is provided with a third locking opening (161), and the lock latch (6) is provided with a locking tongue (63) which is locked with the third locking opening (161).

7. A valve island type vacuum generator system according to claim 1, characterized in that: The vacuum generator (1) comprises an equipment main body module (7), a valve assembly module (8) and a pressure gauge module (9); the pressure gauge module (9) and the valve assembly module (8) are both mounted on the equipment main body module (7); the valve assembly module (8) comprises an air-controlled valve unit and a control valve unit connected to the air-controlled valve unit; the air-controlled valve unit comprises a vacuum valve (81) and a piercing valve (82); the control valve unit comprises a vacuum pilot valve (83) for controlling the operation of the vacuum valve (81) and a piercing pilot valve (84) for controlling the operation of the piercing valve (82); the equipment main body module (7) is provided with a negative pressure suction working port (75).

8. A valve island type vacuum generator system according to claim 7, characterized in that: The control valve unit is provided with a pilot air intake converging channel (85), a vacuum control air channel (86) and a blast control air channel (87), respectively; the pilot air intake converging channel (85) is respectively connected to the vacuum pilot valve (83) and the blast pilot valve (84), the vacuum control air channel (86) is respectively connected to the vacuum pilot valve (83) and the vacuum valve (81), and the blast control air channel (87) is respectively connected to the blast pilot valve (84) and the blast valve (82); the air control valve unit is provided with a vacuum valve air inlet (811) and a vacuum valve air outlet (812) which are respectively matched with the vacuum valve (81), and a vacuum valve air outlet (813) which are respectively matched with the vacuum valve (82). The air-breaking valve air inlet (821) and the air-breaking valve air outlet (822) are matched, and the air-breaking valve air inlet (821) is always connected to the pilot air inlet converging channel (85); the vacuum valve air inlet (811) is connected to the generator air inlet (11) through the first air path (71), and the vacuum valve air outlet (812) is connected to the generator air outlet (12) through the second air path (72); the air-breaking valve air inlet (821) is connected to the generator air inlet (11) through the third air path (73), and the air-breaking valve air outlet (822) is connected to the negative pressure suction working port (75) of the equipment main body module (7) through the fourth air path (74).

9. A valve island type vacuum generator system according to claim 8, characterized in that: The air-controlled valve unit further comprises an air-controlled valve body (88), wherein a partition (881) is provided in the air-controlled valve body (88), wherein the partition (881) divides the inner cavity of the air-controlled valve body (88) into an upper mounting cavity (882) and a lower mounting cavity (883), wherein the vacuum valve (81) is provided in the upper mounting cavity (882), wherein the air-breaking valve (82) is provided in the lower mounting cavity (883), and wherein a valve stem A (813) is movably provided in the vacuum valve (81), wherein a valve stem A (813) is provided between the upper end surface of the valve stem A (813) and the air-controlled valve body (88). A valve stem A upper cavity is provided, a valve stem A lower cavity is provided between the lower end surface of the valve stem A (813) and the partition (881), a valve stem B (823) is movably provided in the air-breaking valve (82), a valve stem B upper cavity is provided between the upper end surface of the valve stem B (823) and the partition (881), a valve stem B lower cavity is provided between the lower end surface of the valve stem B (823) and the air-controlled valve body (88), the vacuum control airway (86) is connected to the valve stem A upper cavity, and the air-breaking control airway (87) is connected to both the valve stem A lower cavity and the valve stem B upper cavity.

10. A valve island type vacuum generator system according to claim 8, characterized in that: The vacuum generator (1) is detachably provided with a nozzle assembly (10) inside. The nozzle assembly air inlet (101) of the nozzle assembly (10) is connected to the vacuum valve air outlet (812), and the nozzle assembly air outlet (102) of the nozzle assembly (10) is connected to the exhaust converging channel (120). The nozzle assembly (10) comprises a primary nozzle (103), a secondary nozzle (104) and a receiving pipe (105) which are connected in sequence. At least a Laval nozzle is used inside the primary nozzle (103). A suction side hole (106) corresponding to the Laval nozzle is provided on the nozzle assembly (10). The primary nozzle (103) and the secondary nozzle (104), as well as the secondary nozzle (104) and the receiving pipe (105) are detachably connected by means of a connecting groove (1031) and a protruding portion (1032).

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