Connection table door opening interruption device

Abstract

The utility model relates to a door opening interrupting device for a connection table, which belongs to the technical field of connection tables and comprises a first control device, a second control device and a magnetic inductive switch, the magnetic inductive switch is respectively and electrically connected with the first control device and the second control device, the first control device comprises a PLC (programmable logic controller) 1, and a Y0 end of the PLC 1 is connected with one end of the magnetic inductive switch. The other end of the magnetic induction switch is connected with the second control device, the magnetic induction switch is additionally arranged on the connection table protective cover, and the magnetic switch is connected to a board solving signal of a front machine of the connection table, so that external foreign matters are effectively prevented from entering the connection table and falling on a PCB (printed circuit board).

Description

Technical Field

[0001] This utility model relates to the field of connecting platform technology, and in particular to a connecting platform door opening interruption device. Background Technology

[0002] In the production process, the conveyor belt is a crucial link connecting key processes and ensuring the smooth flow of PCB boards. Dust adhering to the surfaces of miscellaneous items in the production workshop, such as randomly placed tools and spare parts, can easily be dispersed onto the PCB boards or conveyor belts by the airflow generated by personnel movement and equipment operation. Hair, skin flakes, and fibers shed from clothing during daily activities also enter the production environment, quietly becoming a potential hazard and accumulating on the surface of the conveyor belt or conveyor belt over time.

[0003] Currently, connection stations are generally equipped with protective covers, such as Figure 1 As shown, the current protective cover is flat. When it is not open, it can effectively prevent the PCB board on the docking platform from being contaminated by the outside. However, when the protective cover is open, the docking platform will continue to operate and the PCB board will be transported normally. Foreign objects will fall onto the PCB board when the door is opened. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the above-mentioned traditional technology and provide a docking station door opening interruption device. A magnetic induction switch is added to the docking station protective cover. By connecting the magnetic switch to the board request signal of the docking station to the front machine, it effectively prevents foreign objects from entering the docking station and falling onto the PCB board.

[0005] The purpose of this utility model is achieved through the following technical measures: a connecting platform door opening interruption device, including a first control device, a second control device and a magnetic induction switch, wherein the magnetic induction switch is electrically connected to the first control device and the second control device respectively, the first control device includes a PLC1, the Y0 terminal of the PLC1 is connected to one end of the magnetic induction switch, and the other end of the magnetic induction switch is connected to the second control device.

[0006] As a further improvement to the above technical solution:

[0007] The second control device includes a PLC2, and the X5 terminal of the PLC2 is connected to the other end of the magnetic induction switch.

[0008] The model of PLC1 is VH-14MR, and the model of PLC2 is VH-14MR.

[0009] The Y0 terminal of PLC1 is connected to one end of switch L1, and the other end of switch L1 is connected to the COM0 terminal of PLC1. The Y2 terminal of PLC1 is connected to one end of switch L2, and the other end of switch L2 is connected to the COM2 terminal of PLC1. The COM2 terminal of PLC1 is grounded. The Y2 terminal of PLC1 is connected to one end of relay R1, and the other end of relay R1 is connected to the second transmission motor M2 via the second driver. The X0 terminal of PLC1 is connected to the inlet sensor.

[0010] The Y2 terminal of PLC2 is connected to one end of switch L3, and the other end of switch L3 is connected to the COM2 terminal of PLC2. The COM2 terminal of PLC2 is grounded. The Y2 terminal of PLC2 is connected to one end of relay R2, and the other end of relay R2 is connected to the first transmission motor M1 via the first driver. The Y1 terminal of PLC2 is connected to one end of switch L4, and the other end of switch L4 is connected to the COM1 terminal of PLC2. The Y1 terminal of PLC2 is connected to the X4 terminal of PLC1. The COM1 terminal of PLC2 is connected to the GND terminal of PLC1. The GND terminal of PLC2 is connected to the COM0 terminal of PLC1. The X2 terminal of PLC2 is connected to the output sensor.

[0011] The first control device is installed on the docking platform, and the second control device is installed on the front machine.

[0012] The connecting platform is equipped with a protective cover, which includes two side panels. The two side panels are respectively located on the upper sides of the connecting platform. A back panel is located on the upper rear side of the connecting platform. The back panel is fixedly connected to the two side panels. A top panel is located above the two side panels. The top panel is fixedly connected to the back panel and the two side panels respectively. A protective cover door is hinged to the top panel. The width of the protective cover door is equal to the width between the two side panels. The protective cover door, the back panel, the top panel, and the two side panels together form a closed cavity.

[0013] The protective cover door includes a connecting plate and a front panel, which are fixedly connected. The connecting plate is hinged to the top plate, and both the front panel and the back panel are perpendicular to the docking platform.

[0014] The connecting plate is inclined, and the angle between the connecting plate and the front panel is 120 degrees.

[0015] The magnetic induction switch includes a magnetic sensor and a single switch. The magnetic sensor is installed on one of the side plates, and the single switch is installed on one side of the protective cover. The single switch corresponds to the magnetic sensor, and the effective distance between the magnetic sensor and the single switch is 0-15mm.

[0016] Due to the adoption of the above technical solution, the advantages of this utility model compared with the prior art are as follows: This utility model adds a magnetic induction switch to the protective cover of the connecting platform. By connecting the magnetic switch to the board request signal of the connecting platform to the front machine, when the door is opened, the magnetic induction switch is separated and the induction signal is interrupted, thus cutting off the board request signal of the connecting platform to the front machine. The front machine no longer flows the PCB board out to the rear. After the door is closed, the magnetic switch induction signal is restored and connected to the board request signal of the front machine, so that the PCB board of the front machine can flow out. This effectively prevents foreign objects from entering the connecting platform and falling onto the PCB board.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the connecting platform and protective cover in the background art of this utility model;

[0019] Figure 2 A circuit diagram of a docking station door opening interruption device in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connecting platform and protective cover in an embodiment of this utility model;

[0021] Figure 4 yes Figure 3 The left view.

[0022] In the diagram, 1-connecting platform, 2-protective cover, 21-connecting plate, 22-front panel, 3-magnetic induction switch, 4-observation window, 5-handle, 6-side panel, 7-back panel, 8-top panel, 9-magnetic sensor, 10-single switch, 11-first control device, 12-second control device, 13-second driver, 14-entry sensor, 15-first driver, 16-exit sensor, 17-protective cover door. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Example

[0026] like Figure 2-4 As shown, a docking station door opening interruption device includes a first control device 11, a second control device 12, and a magnetic induction switch 3. The first control device 11 is installed on the docking station 1, and the second control device 12 is installed on the front unit, which supplies PCB boards to the docking station 1.

[0027] A protective cover 2 is provided above the connecting platform 1. The protective cover 2 includes two side plates 6, which are respectively located on the upper sides of the connecting platform 1. A back plate 7 is provided on the upper rear side of the connecting platform 1. The back plate 7 is fixedly connected to the two side plates 6. A top plate 8 is provided above the two side plates 6. The top plate 8 is fixedly connected to the back plate 7 and the two side plates 6 respectively. A protective cover door 17 is hinged to the top plate 8. The width of the protective cover door 17 is equal to the width between the two side plates 6. The protective cover door 17, the back plate 7, the top plate 8 and the two side plates 6 together form a closed cavity.

[0028] The protective cover door 17 includes a connecting plate 21 and a front panel 22, which are fixedly connected. The connecting plate 21 is hinged to the top plate 8. Both the front panel 22 and the back plate 7 are perpendicular to the docking platform 1. The connecting plate 21 is inclined, and the included angle between the connecting plate 21 and the front panel 22 is 120 degrees. The connecting plate 21 is provided with an observation window 4, through which the internal working conditions can be observed. The front panel 22 is provided with a handle 5, which can be used to open the protective cover door 17.

[0029] The magnetic induction switch 3 is electrically connected to the first control device 11 and the second control device 12 respectively. The magnetic induction switch 3 includes a magnetic sensor 9 and a single switch 10. The magnetic sensor 9 is disposed on one of the side plates 6, and the single switch 10 is disposed on one side of the protective cover 2. The single switch 10 corresponds to the magnetic sensor 9. The effective distance between the magnetic sensor 9 and the single switch 10 is 0-15mm, and the magnetic induction intensity within 0-15mm meets 1500GS.

[0030] Working principle of magnetic induction switch 3: When a single switch 10 is close to the magnetic sensor 9, the circuit is connected; conversely, when a single switch A is more than 15mm away from the magnetic sensor 9, the circuit is disconnected.

[0031] The first control device 11 includes a PLC1, model VH-14MR. The Y0 terminal of the PLC1 is connected to one end of the switch L1, the other end of the switch L1 is connected to the COM0 terminal of the PLC1, the Y0 terminal of the PLC1 is connected to one end of the magnetic induction switch 3, and the other end of the magnetic induction switch 3 is connected to the second control device 12.

[0032] The Y2 terminal of PLC1 is connected to one end of switch L2, the other end of switch L2 is connected to the com2 terminal of PLC1, the com2 terminal of PLC1 is grounded, the Y2 terminal of PLC1 is connected to one end of relay R1, and the other end of relay R1 is connected to the second transmission motor M2 via the second driver 13.

[0033] The X0 terminal of PLC1 is connected to the inlet sensor 14.

[0034] The second control device 12 includes a PLC2, model VH-14MR. The Y2 terminal of the PLC2 is connected to one end of the switch L3, and the other end of the switch L3 is connected to the com2 terminal of the PLC2. The com2 terminal of the PLC2 is grounded. The Y2 terminal of the PLC2 is connected to one end of the relay R2, and the other end of the relay R2 is connected to the first transmission motor M1 via the first driver 15.

[0035] The Y1 terminal of PLC2 is connected to one end of switch L4, the other end of switch L4 is connected to the COM1 terminal of PLC2, the Y1 terminal of PLC2 is connected to the X4 terminal of PLC1, and the COM1 terminal of PLC2 is connected to the GND terminal of PLC1.

[0036] The GND terminal of PLC2 is connected to the COM0 terminal of PLC1, and the X5 terminal of PLC2 is connected to the other end of the magnetic induction switch 3.

[0037] The X2 terminal of PLC2 is connected to the output sensor 16.

[0038] Working principle:

[0039] 1. When the protective cover door 17 is closed, the magnetic induction switch 3 is connected. When the inlet sensor 14 on the connecting platform 1 is not detected, the switch L1 of the first control device 11 of the connecting platform 1 is closed and sends a board request signal to the second control device 12 of the front machine. When the outlet sensor 16 of the second control device 12 detects the PCB board, the switch L4 of the second control device 12 is closed and sends a board output signal to the first control device 11. The switch L3 of the second control device 12 is closed, and the first transmission motor M1 starts to convey the PCB board to the connecting platform 1. When the inlet sensor 14 on the connecting platform 1 detects the board, the switch L2 of the first control device 11 is closed, and the second transmission motor M2 starts to convey.

[0040] 2. When the protective cover door 17 is opened, the magnetic induction switch 3 is disconnected, cutting off the board request signal from the connecting platform to the front machine. The front machine cannot receive the board request signal. Even if the outlet sensor 16 senses the board, the switch L3 cannot close, so the PCB board will not be sent out, effectively preventing foreign objects from entering the connecting platform and falling onto the PCB board.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for interrupting the opening of a connecting platform door, characterized in that: It includes a first control device (11), a second control device (12) and a magnetic induction switch (3). The magnetic induction switch (3) is electrically connected to the first control device (11) and the second control device (12) respectively. The first control device (11) includes a PLC1. The Y0 terminal of the PLC1 is connected to one end of the magnetic induction switch (3), and the other end of the magnetic induction switch (3) is connected to the second control device (12).

2. The connecting platform door opening interruption device according to claim 1, characterized in that: The second control device (12) includes a PLC2, and the X5 terminal of the PLC2 is connected to the other end of the magnetic induction switch (3).

3. A connecting platform door opening interruption device according to claim 1 or 2, characterized in that: The model of PLC1 is VH-14MR, and the model of PLC2 is VH-14MR.

4. The connecting platform door opening interruption device according to claim 3, characterized in that: The Y0 terminal of PLC1 is connected to one end of switch L1, the other end of switch L1 is connected to the com0 terminal of PLC1, the Y2 terminal of PLC1 is connected to one end of switch L2, the other end of switch L2 is connected to the com2 terminal of PLC1, the com2 terminal of PLC1 is grounded, the Y2 terminal of PLC1 is connected to one end of relay R1, the other end of relay R1 is connected to the second transmission motor M2 via the second driver (13); the X0 terminal of PLC1 is connected to the inlet sensor (14).

5. The connecting platform door opening interruption device according to claim 4, characterized in that: The Y2 terminal of PLC2 is connected to one end of switch L3, the other end of switch L3 is connected to the com2 terminal of PLC2, the com2 terminal of PLC2 is grounded, the Y2 terminal of PLC2 is connected to one end of relay R2, the other end of relay R2 is connected to the first transmission motor M1 via the first driver (15); the Y1 terminal of PLC2 is connected to one end of switch L4, the other end of switch L4 is connected to the com1 terminal of PLC2, the Y1 terminal of PLC2 is connected to the X4 terminal of PLC1, the com1 terminal of PLC2 is connected to the GND terminal of PLC1; the GND terminal of PLC2 is connected to the com0 terminal of PLC1; the X2 terminal of PLC2 is connected to the output sensor (16).

6. The connecting platform door opening interruption device according to claim 1, characterized in that: The first control device (11) is installed on the docking platform (1), and the second control device (12) is installed on the front machine.

7. A connecting platform door opening interruption device according to claim 6, characterized in that: The connecting platform (1) is provided with a protective cover (2) above it. The protective cover (2) includes two side plates (6). The two side plates (6) are respectively set on the upper sides of the connecting platform (1). The connecting platform (1) is provided with a back plate (7) on the upper rear side. The back plate (7) is fixedly connected to the side plates (6) on both sides. The two side plates (6) are provided with a top plate (8) above them. The top plate (8) is fixedly connected to the back plate (7) and the two side plates (6) respectively. The top plate (8) is hinged with a protective cover door (17). The width of the protective cover door (17) is equal to the width between the two side plates (6). The protective cover door (17), the back plate (7), the top plate (8) and the two side plates (6) together form a closed cavity.

8. A docking station door opening interruption device according to claim 7, characterized in that: The protective cover door (17) includes a connecting plate (21) and a front panel (22). The connecting plate (21) and the front panel (22) are fixedly connected. The connecting plate (21) is hinged to the top plate (8). The front panel (22) and the back panel (7) are both set perpendicular to the docking platform (1).

9. A docking station door opening interruption device according to claim 8, characterized in that: The connecting plate (21) is inclined, and the angle between the connecting plate (21) and the front panel (22) is 120 degrees.

10. A docking station door opening interruption device according to claim 9, characterized in that: The magnetic induction switch (3) includes a magnetic sensor (9) and a single switch (10). The magnetic sensor (9) is disposed on one of the side plates (6), and the single switch (10) is disposed on one side of the protective cover (2). The single switch (10) corresponds to the magnetic sensor (9), and the effective distance between the magnetic sensor (9) and the single switch (10) is 0-15mm.

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