Automatic control device for warehouse cargo spraying door

Abstract

The utility model aims to provide the automatic control device for the warehouse cargo spraying door, which is simple in structure and realizes automatic opening and closing control of the existing cargo spraying door. The automatic control device is arranged between a storage RCS system and a cargo shower door, automatic door closers are arranged on an outer door and an inner door of the cargo shower door, and the automatic control device for the storage cargo shower door comprises a gate opening and closing circuit used for controlling opening and closing of the outer door and the inner door of the cargo shower door through the automatic door closers; the door opening in-place signal feedback circuit is used for sensing whether an outer door and an inner door of the cargo spraying door are opened in place or not; the double-door interlocking circuit is used for keeping the internal space of the cargo spraying door clean and controlling the opening and closing of an outer door and an inner door of the cargo spraying door; and the air shower circuit is used for controlling starting and closing of a fan of the cargo shower door. The circuit can be applied to the field of circuit control.

Description

Technical Field

[0001] The utility model relates to the field of circuit control, in particular to an automatic control device for a storage cargo shower door. Background Art

[0002] During the deployment and construction of intelligent warehousing for automated material handling, it is necessary to connect the control of the cargo shower door in the dust-free workshop to the RCS system (Robot Control System), so that when the AGV travels to the cargo shower door, the cargo shower door can perform functions such as opening, closing, starting, and closing the air shower according to the scheduling instructions of the RCS. The RCS system deploys a terminal hardware controller at the cargo shower door. After receiving the control instructions from the RCS system, the controller reads or controls the corresponding input / output ports, and its input and output signals are IO voltage signals.

[0003] Currently, the cargo shower door is a manual door and does not have the function of automatic opening and closing; at the same time, the cargo shower door itself does not have an external communication interface, so it cannot receive the opening and closing instructions of the controller, nor can it feedback the opening and closing status. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an automatic control device for a storage cargo shower door with a simple structure that can automatically control the opening and closing of the existing cargo shower door.

[0005] The technical solution adopted by the utility model is that it is arranged between the RCS system and the cargo shower door in the warehouse. Automatic door closers are provided on both the outer door and the inner door of the cargo shower door. The automatic control device for the storage cargo shower door includes

[0006] A switch door circuit for controlling the opening and closing of the outer door and the inner door of the cargo shower door through the automatic door closer;

[0007] An opening in-place signal feedback circuit for sensing whether the opening of the outer door and the inner door of the cargo shower door is in place;

[0008] A double-door interlock circuit for controlling the opening and closing of the outer door and the inner door of the cargo shower door to keep the internal space of the cargo shower door clean; and

[0009] An air shower circuit for controlling the start and stop of the blower of the cargo shower door.

[0010] As can be seen from the above solution, an automatic control device for a storage cargo shower door composed of a door opening and closing circuit, a door opening in-place signal feedback circuit, a double-door interlock circuit, and a air shower circuit establishes a connection between the RCS system of the storage and the cargo shower door. By using the operation of the automatic control device for the storage cargo shower door, when the outer door is opened from outside the workshop, the inner door is automatically locked. After entering the air shower room and closing the outer door, the air shower is automatically turned on inside the air shower room and stops when the set time is reached. During the air shower, the inner door and the outer door are locked simultaneously and neither side can open the door. After the air shower ends, both the inner door and the outer door are unlocked. Opening the inner door to enter the workshop, the outer door is automatically locked instantly when the inner door is opened. After the inner door is closed, the cargo shower door enters the standby state and the inner and outer doors are unlocked. When the inner door is opened from inside the workshop, the outer door is automatically locked. After entering the air shower room and closing the inner door, the inner door is unlocked. When the outer door is pushed open from inside the air shower room instantly, the inner door is automatically locked. After walking out of the air shower room and closing the outer door, the inner door is automatically unlocked and returns to the standby state. It can be seen that the structure of the present utility model is simple, and only a controller needs to be added to the existing cargo shower door to achieve the above automation functions. Compared with the prior art, both the outer door and the inner door of the cargo shower door achieve automatic opening and closing, providing guarantee for the subsequent automatic and safe passage of the AGV cart through the cargo shower door.

[0011] Further, the door opening and closing circuit includes a controller terminal connected to the RCS system of the storage, a fifth intermediate relay, and a sixth intermediate relay. The 5th contact of the fifth intermediate relay is connected to the 1st contact of the sixth intermediate relay. Light-emitting diodes are provided on both the fifth intermediate relay and the sixth intermediate relay.

[0012] As can be seen from the above solution, the door opening signal sent by the RCS system of the storage acts on the fifth intermediate relay and forms self-locking through the sixth intermediate relay, which is equivalent to the automatic door closer always executing the door opening instruction and keeping the door in the normally open state. The door closing signal sent by the RCS system of the storage will act on the sixth intermediate relay. After the sixth intermediate relay operates, the self-locking is released, "COM" and the "access control signal" are disconnected, and the automatic door closer can start to execute the door closing action. The outer door or the inner door of the cargo shower door can thus achieve the opening or closing action.

[0013] Further, the door opening in-place signal feedback circuit includes a door opening in-place position sensor. The door opening in-place position sensor is connected to the RCS system of the storage through the controller terminal. When the door opening in-place position sensor detects a metal object, it outputs a low level, indicating that the door opening is in place. As can be seen from the above solution, the position sensor is used to sense the opening position of the door. When the door opening in-place position sensor detects a metal object, it outputs a low level, indicating that the door opening is in place, realizing the generation of the feedback signal, making the process of door opening and closing a closed-loop process, and ensuring the use safety of the cargo shower door.

[0014] Furthermore, the double-door interlock circuit includes a first intermediate relay and an inner door distance sensor. An LED is connected to the inner door distance sensor. The first intermediate relay and the inner door distance sensor are connected to the RCS system of the warehouse through the controller terminal block. By using the interlock circuit, the interaction between the inner door and the outer door of the air shower door is realized, ensuring that the air inside the air shower door cannot circulate directly, and guaranteeing the cleanliness of the air shower room.

[0015] In addition, the air shower circuit includes a second intermediate relay, a first time relay, and an outer door distance sensor. The power supply circuit of the AC contactor of the blower of the air shower door is connected in series between the normally open contact of the second intermediate relay and the normally closed contact of the first time relay. The second intermediate relay, the first time relay, and the outer door distance sensor are respectively connected to the RCS system of the warehouse through the controller terminal block. By using the air shower circuit to control the opening and closing of the blower in the air shower door, combined with the rhythm of the opening and closing of the outer door and the inner door of the air shower door, it is ensured that the air shower room is always dust-free. At the same time, the compact linkage of the blower, the outer door, and the inner door ensures the time rhythm and reduces the time cost.

[0016] Further, the automatic control device for the warehouse air shower door further includes a lamp control circuit. The lamp control circuit includes a seventh intermediate relay, an eighth intermediate relay, and a second time relay. The seventh intermediate relay, the eighth intermediate relay, and the second time relay are connected in sequence. The normally open contact of the eighth intermediate relay is connected to the lamp tube control circuit to control the lighting and extinguishing of the lamp tube. The second time relay is a power-on delay relay. The seventh intermediate relay is driven by a logical OR gate circuit composed of the first intermediate relay and the second intermediate relay. Thus, since the lights do not need to be turned on for a long time, they only need to be turned on when there are people or goods passing through inside the air shower door, and the lights are turned off when the air shower door is in standby. When the inner door or the outer door is opened, the lights are always on. After both the inner door and the outer door are closed, the lamp tube lights up for a set period of time and then turns off automatically, thereby enabling the air shower room to have better energy-saving effects. Description of the Drawings

[0017] Figure 1 is the overall schematic diagram of the present invention;

[0018] Figure 2 is the schematic diagram of the switch door circuit;

[0019] Figure 3 is the schematic diagram of the door open in-place signal feedback circuit;

[0020] Figure 4 is the schematic diagram of the double-door interlock circuit;

[0021] Figure 5is the schematic diagram of the air shower circuit;

[0022] Figure 6 is the schematic diagram of the lamp control circuit. Detailed implementation mode

[0023] As Figures 1 to 6 shown, the utility model is arranged between the RCS system and the air shower door in the warehouse. Automatic door closers are installed on both the outer door and the inner door of the air shower door. Here, an electric door closer is installed on each door of the air shower room, and the door closer drives the door leaf to open and close. The door closer can be controlled by manual push induction, button and remote control. The automatic door closers are paired in pairs and connected through the double-door synchronization function. Controlling one of them will cause the other to act synchronously.

[0024] When the "COM" and "access control signal" output by the RCS system in the warehouse are short-circuited, the door closer performs the opening action. The two interfaces are respectively connected to normally open buttons. When the buttons are pressed, the two places are connected, and the door closer performs the opening action. When these two contacts are disconnected, the door closer automatically performs the closing action after a delay period, and the delay time is adjustable. The utility model also controls the opening and closing of the door by controlling the on-off of these two contacts.

[0025] The automatic control device for the warehouse air shower door includes

[0026] a switch door circuit for controlling the opening and closing of the outer door and the inner door of the air shower door through the automatic door closer;

[0027] an opening in-place signal feedback circuit for sensing whether the outer door and the inner door of the air shower door are in place when opening;

[0028] a double-door interlock circuit for keeping the internal space of the air shower door clean and controlling the opening and closing of the outer door and the inner door of the air shower door; and

[0029] an air shower circuit for controlling the start and stop of the blower of the air shower door.

[0030] As Figure 1 and Figure 2As shown in the figure, the door opening and closing circuit includes a controller terminal connected to the RCS system of the warehouse, a fifth intermediate relay KA5, and a sixth intermediate relay KA6. The 5th contact of the fifth intermediate relay KA5 is connected to the 1st contact of the sixth intermediate relay KA6. Light-emitting diodes are provided on both the fifth intermediate relay KA5 and the sixth intermediate relay KA6. Specifically, the door opening signal of the RCS system of the warehouse acts on the fifth intermediate relay KA5 and forms self-locking through the sixth intermediate relay KA6, which is equivalent to the automatic door closer always executing the door opening instruction and keeping the door in the normally open state. During the time when the door is normally open, people, goods, etc. can safely pass through the door without the risk of collision. The door closing signal output by the RCS system of the warehouse will act on the sixth intermediate relay KA6. After the sixth intermediate relay KA6 operates, the self-locking is released, "COM" and the "access control signal" are disconnected, and the door closer can start to execute the door closing action.

[0031] As Figure 1 and Figure 3 shown in the figure, the door opening in-place signal feedback circuit includes a door opening in-place position sensor S3. The door opening in-place position sensor S3 is connected to the RCS system of the warehouse through the controller terminal. When the door opening in-place position sensor S3 detects a metal object, it outputs a low level, indicating that the door opening is in place.

[0032] When the outer door and the inner door of the goods shower door are fully opened, the door opening in-place position sensor S3 detects a metal, and the signal line outputs a low level. Its signal line is connected to the corresponding input port of the terminal hardware, and the low level is valid.

[0033] As Figure 1 and Figure 4 shown in the figure, the double-door interlock circuit includes a first intermediate relay KA1 and an inner door distance sensor S1. A light-emitting diode is connected to the inner door distance sensor S1. The first intermediate relay KA1 and the inner door distance sensor S1 are connected to the RCS system of the warehouse through the controller terminal.

[0034] The inner door distance sensor S1 is installed on the inner door. When the door is closed, it detects a metal and outputs a high level (12V), driving the first intermediate relay KA1 to operate and turning on the outer door opening signal. At this time, if there is an outer door opening signal, the opening action can be normally responded to; if the inner door is opened (such as manually opening the door), the first intermediate relay KA1 does not operate. Since the outer door opening signal circuit is connected to the normally open contact of the first intermediate relay KA1, even if the outer door terminal controller issues an outer door opening signal at this time, the door closer cannot respond. Similarly, the inner door distance sensor of the outer door controls the inner door opening signal circuit, thus forming an interlock.

[0035] As Figure 1 and Figure 5As shown, the air shower circuit includes a second intermediate relay KA2, a first time relay KT1, and an outer door distance sensor S2. The power supply circuit of the AC contactor P8 of the fan of the air shower door is connected in series between the normally open contact of the second intermediate relay KA2 and the normally closed contact of the first time relay KT1. The second intermediate relay KA2, the first time relay KT1, and the outer door distance sensor S2 are respectively connected to the RCS system of the warehouse through the controller terminal block.

[0036] When entering the air shower room from the outside, at the moment of closing the door, the outer door distance sensor S2 of the outer door drives the second intermediate relay KA2 and the first time relay KT1 (delay action type). The second intermediate relay KA2 acts immediately, the contactor is energized, and the fan starts to work. After 6 seconds, the first time relay KT1 acts, the normally closed contact disconnects, the fan stops working, and at the same time the normally open contact of the first time relay KT1 closes, and the inner door closer can start to respond to the door opening signal.

[0037] Among them, the function of the second intermediate relay KA2: to ensure that the AC contactor of the fan can only be energized after the outer door is closed. Otherwise, without the second intermediate relay KA2, as long as the outer door is opened, the coil of the first time relay KT1 loses power, and the fan will start.

[0038] Such as Figure 1 and Figure 6 As shown, the automatic control device for the warehouse air shower door further includes a lamp control circuit. The lamp control circuit includes a seventh intermediate relay KA7, an eighth intermediate relay KA8, and a second time relay KT2. The seventh intermediate relay KA7, the eighth intermediate relay KA8, and the second time relay KT2 are connected in sequence. The normally open contact of the eighth intermediate relay KA8 is connected to the lamp control circuit to control the on and off of the lamp tube. The second time relay KT2 is an electrified delay relay, and the seventh intermediate relay KA7 is driven by a logic OR gate circuit composed of the first intermediate relay KA1 and the second intermediate relay KA2.

[0039] Here, in the standby situation, the lights are off. When the inner door or the outer door is opened, the lights are always on. After both the inner and outer doors are closed, the lamp tube turns off automatically after 3 minutes.

[0040] Because the lights do not need to be turned on for a long time and only need to be turned on when there are people or goods passing through the air shower door, the states sensed by the distance sensors installed at the inner and outer doors are used as the trigger conditions. At the same time, a set of contacts of the first intermediate relay KA1 and the second intermediate relay KA2 designed in the double-door interlock circuit are used. The normally open contact of the eighth intermediate relay KA8 is connected to the lamp control circuit to control the on and off of the lights. The second time relay KT2 is an electrified delay relay, and the set time is 3 minutes.

[0041] When the inner door or the outer door is opened instantaneously, the eighth intermediate relay KA8 is energized and operates, and the light is on. At the same time, self-locking is formed through a set of normally closed contacts of the second time relay KT2. The light remains on during the door opening period. When the door is closed instantaneously, the normally open contact of the first intermediate relay KA1 is closed, "TIMER_ENABLE" enables the seventh intermediate relay KA7, and the second time relay KT2 starts to be energized. After 3 minutes, the second time relay KT2 operates, disconnects the self-locking of the eighth intermediate relay KA8, and the light goes out.

[0042] Here, the first intermediate relay KA1 and the second intermediate relay KA2 form a logical OR gate circuit, and both can drive the seventh intermediate relay KA7.

[0043] Through specific design, in the standby condition, the eighth intermediate relay KA8 and the second time relay KT2 are in the de-energized state, extending their service life.

[0044] The structure of the utility model is simple. Only by adding a controller to the existing air shower door can the above-mentioned automatic functions be realized. Compared with the prior art, both the outer door and the inner door of the air shower door can be automatically opened and closed, providing guarantee for the subsequent automatic and safe passage of the AGV cart through the air shower door.

[0045] Finally, it should be emphasized that the above are only the preferred embodiments of the utility model and are not used to limit the utility model. For those skilled in the art, the utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. An automatic control device for a storage cargo shower door, characterized in that: The device is installed between the RCS system and the cargo shower door of the warehouse. The outer door and the inner door of the cargo shower door are both equipped with automatic door closers. The automatic control device for the warehouse cargo shower door includes A switch door circuit for controlling the opening and closing of the outer door and the inner door of the cargo shower door through the automatic door closer; A door opening signal feedback circuit for sensing whether the outer door and the inner door of the cargo shower door are fully opened; A double door interlock circuit for controlling the opening and closing of the outer door and the inner door of the cargo shower door to keep the inner space of the cargo shower door clean; and Air shower circuit used to start and shut down the fan of the cargo shower door.

2. The automatic control device for a storage cargo shower door according to claim 1 is characterized in that: The switch gate circuit includes a controller terminal connected to the RCS system of the warehouse, a fifth intermediate relay (KA5) and a sixth intermediate relay (KA6), the fifth contact of the fifth intermediate relay (KA5) is connected to the first contact of the sixth intermediate relay (KA6), and light-emitting diodes are provided on the fifth intermediate relay (KA5) and the sixth intermediate relay (KA6).

3. The automatic control device for a storage cargo shower door according to claim 2 is characterized in that: The door opening position sensor (S3) is connected to the RCS system of the warehouse through the controller terminal. When the door opening position sensor (S3) detects a metal object, it outputs a low level, indicating that the door is fully opened.

4. The automatic control device for a storage cargo shower door according to claim 2, characterized in that: The double-door interlocking circuit comprises a first intermediate relay (KA1) and an inner door distance sensor (S1), the inner door distance sensor (S1) is connected to a light-emitting diode, and the first intermediate relay (KA1) and the inner door distance sensor (S1) are connected to the RCS system of the warehouse through the controller wiring terminals.

5. The automatic control device for storage cargo shower door according to claim 4 is characterized in that: The air shower circuit includes a second intermediate relay (KA2), a first time relay (KT1) and an outer door distance sensor (S2); a power supply circuit of an AC contactor (P8) of a fan of the cargo shower door is connected in series to a normally open contact of the second intermediate relay (KA2) and a normally closed contact of the first time relay (KT1); the second intermediate relay (KA2), the first time relay (KT1) and the outer door distance sensor (S2) are respectively connected to the RCS system of the warehouse through the controller wiring terminals.

6. The automatic control device for storage cargo shower door according to claim 5, characterized in that: The automatic control device for the storage cargo shower door also includes a light control circuit, which includes a seventh intermediate relay (KA7), an eighth intermediate relay (KA8) and a second time relay (KT2). The seventh intermediate relay (KA7), the eighth intermediate relay (KA8) and the second time relay (KT2) are connected in sequence, and the normally open contact of the eighth intermediate relay (KA8) is connected to the lamp control circuit to control the lighting and extinguishing of the lamp. The second time relay (KT2) is a power-on delay relay, and the seventh intermediate relay (KA7) is driven by a logic OR gate circuit composed of the first intermediate relay (KA1) and the second intermediate relay (KA2).

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