An intelligent inert gas storage

Abstract

The present invention discloses an inert gas intelligent material warehouse, which belongs to the field of warehouse storage and retrieval technology. The intelligent material warehouse includes a shelf and a stacker for storing and retrieving goods. The shelf is divided into a plurality of independent storage locations, the storage locations are filled with nitrogen, and the storage locations are composed of a plurality of horizontally and vertically arranged storage locations; the stacker includes a linear slide rail, a lifting fixed frame, a lifting slide rail and a material retrieving box, the linear slide rail is slidably connected to the lifting fixed frame, the lifting slide rail is fixedly installed on the lifting fixed frame, and the lifting slide rail is slidably connected to the material retrieving box. The present invention forms a closed space with the shelf storage location by nitrogen replacement, so that nitrogen in the shelf does not leak out when storing and retrieving goods. Among them, the space adjustment component in the material retrieving box can adjust the space size of the material retrieving cavity, effectively reducing the consumption of nitrogen and further improving resource utilization.

Description

Technical Field

[0001] The present invention belongs to the technical field of warehouse storage and retrieval, and in particular relates to an intelligent inert gas warehouse. Background Art

[0002] With the rapid development of science and technology, an increasing number of high-precision devices have emerged, widely used in fields such as semiconductors, microelectronics, precision instrument manufacturing, and biotechnology. However, high-precision devices are easily corroded or oxidized by moisture and oxygen in the air during storage. Therefore, high-precision devices must be stored in an oxygen-free environment, which traditional storage warehouses often cannot meet. In recent years, the rise of smart warehouse technology has provided a new solution to this problem. Smart warehouses use advanced technology to fill the warehouse with sufficient nitrogen to maintain a constant temperature, humidity, and pressure. Through automatic control systems, they achieve precise control and real-time monitoring of warehouse environmental parameters, providing more reliable protection for the storage of high-precision devices.

[0003] However, in the actual application of smart warehouses, especially during the storage and retrieval of goods, nitrogen leakage is prone to occur. At the same time, as the number of storage and retrieval times increases, the outside air will gradually penetrate into the shelves, reducing the purity of the nitrogen in the shelves. Summary of the Invention

[0004] Purpose of the invention: The main purpose of the present invention is to provide an inert gas intelligent material warehouse, which can avoid nitrogen gas leakage in the shelves and prevent air from penetrating into the shelves when the stacker crane stores and retrieves goods.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] An inert gas intelligent material warehouse includes shelves and stackers. The shelves are divided into multiple independent storage locations. Different storage locations can store different goods. The storage locations are filled with nitrogen and are kept at a constant temperature and pressure. The storage locations are composed of multiple horizontally and vertically arranged warehouses for storing goods. Each warehouse has an independent warehouse door. Goods are stored and retrieved through the warehouse door. The location and three-dimensional information of the goods are uploaded to the system through sensors and visual positioning; the stacker includes a linear slide, a lifting fixed frame, a lifting slide and a material picking box. The stacker moves horizontally on the linear slide to deliver the goods to the warehouse entrance or warehouse location. The linear slide is slidably connected to the lifting fixed frame, which is the weight of the stacker. The load-bearing structure maintains the stability of the stacker operation, and a lifting slide is fixedly installed on the lifting fixed frame, and a material picking box is slidably connected to the lifting slide, and the material picking box includes an outer box body, a space adjustment component and a material picking component, and a material picking cavity with a material picking port on one side is provided in the outer box body, and a material picking component that can extend out of the material picking cavity is fixedly installed at the center of the material picking cavity, and the space adjustment component is movably arranged on both sides of the material picking component, and an adjustable material picking cavity is formed between the space adjustment component and the outer box body, and a plurality of exhaust holes and a plurality of air injection holes are fixedly provided on the cavity wall of the adjustable material picking cavity; the material picking cavity of the stacker and the shelf position can form a relatively closed space for storing and retrieving goods.

[0007] The material picking assembly includes an automatically retractable fork, which includes a lower fork body, a middle fork body, an upper fork body and a driving device. The lower fork body is slidably connected to the middle fork body, and the middle fork body is slidably connected to the upper fork body. The driving device is fixedly installed on the lower side of the material picking cavity and is connected to the lower fork body through a gear rack, thereby driving the fork to retract and retract. The retraction and extension of the fork realizes rapid storage and retrieval of goods.

[0008] The space adjustment component includes a first partition, a second partition, a sealing groove, a slide rail, an avoidance groove and a drive device box; the slide rails are fixedly installed on the left and right sides of the outer box body, and the second partition is slidably connected to the slide rails. The second partition and the first partition are sealed and vertically connected by welding to form an L-shaped movable partition. The size of the material collection cavity is adjusted according to the information of the goods to be collected, which saves the use of nitrogen and also saves the time for storing and retrieving goods.

[0009] Preferably, a sealing groove is provided at the inner and lower parts of the outer box body, a slide rail is fixedly installed in the sealing groove, a first partition is slidably connected to the slide rail, and the first partition is embedded in the avoidance groove opened above the outer box body. The drive device box is arranged above the avoidance groove and forms a closed space with the material taking chamber.

[0010] Preferably, the drive device box includes a connecting block, a servo motor and a bidirectional screw rod. The first partition is connected to the bidirectional screw rod through the connecting block. The servo motor is fixedly installed on the right or left side of the screw rod to drive the first partition to move along the slide rail.

[0011] The outer box body is provided with an air bag on one side of the material taking port. When the stacker reaches the target storage position, the air bag pops open, and the outer box body and the target storage position form a closed space.

[0012] The outer box body is also fixedly installed with a vacuum pump, which is connected to the first exhaust hole through a pipeline to discharge the air in the material taking cavity; a nitrogen injection device, which is connected to the first air injection hole through a pipeline to inject nitrogen into the material taking cavity; a nitrogen recovery device, which is connected to the second exhaust hole through a pipeline to recover the nitrogen in the material taking cavity, and the nitrogen recovery device is connected to the nitrogen injection device through a pipeline; an air release valve is provided on the second air injection hole to facilitate air to enter the box body.

[0013] An electrical control cabinet is fixedly installed below the lifting fixed frame, which serves as the power control unit of the entire stacker.

[0014] The shelves are arranged in two rows, and there is an aisle in the middle of the shelves. The aisle is an aerobic environment. A linear slide is provided in the aisle, and the stacker moves horizontally on the linear slide.

[0015] A method for storing and retrieving goods from a shelf using a stacker, the method comprising:

[0016] Step one, provide a stacker, the stacker includes a linear slide, a lifting fixed frame, a lifting slide and a material picking box; step two, provide a shelf, the shelf has the nitrogen-filled storage space; step three, control the stacker to move horizontally along the linear slide, control the stacker material picking box to move vertically along the lifting slide, select the target storage space, and the airbag pops open; step four, the stacker and the target storage space form a closed space, and the system detects the three-dimensional information of the goods and controls the space adjustment component of the stacker to automatically adjust the size of the material picking cavity; step five, exhaust the air in the material picking cavity through the first exhaust hole, and inject nitrogen into the material picking cavity through the first air injection hole; step six, open the target storage space, and the material picking component performs the storage and retrieval operation of the goods; step seven, close the target storage space, recover the nitrogen in the material picking cavity through the exhaust hole, and fill the material picking cavity with air through the air injection hole; step eight, move the stacker to the target position to complete the transportation.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Using a reclaim box instead of the traditional loading platform can effectively prevent dust from damaging the internal goods and effectively reduce the chance of damage to the goods when the stacker is hit or squeezed.

[0019] 2. An air bag is installed on the reclaim box. When the reclaim box of the stacker reaches the designated position, the air bag pops open and presses against the storage space near the target location. The reclaim box and the target location form a closed space, effectively reducing nitrogen leakage and air infiltration when storing and retrieving goods.

[0020] 3. The stacker crane's reclaim box is equipped with a space adjustment component that can automatically adjust the size of the reclaim cavity according to the warehouse location and three-dimensional information of the target goods entered in advance by the system, and reduce resource waste through a movable partition structure.

[0021] 4. The retrieval bin is vacuumed and nitrogen injected to ensure that the retrieval bin has the same inert environment as the shelf storage bin, thereby preventing the leakage of inert gas and the entry of air when storing and retrieving goods.

[0022] 5. After the material is taken out, the nitrogen is recovered through the nitrogen recovery device and recycled to further reduce resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an intelligent material warehouse for inert gas;

[0024] Figure 2 It is a structural diagram of the stacker;

[0025] Figure 3 It is a structural diagram of the material taking box;

[0026] Figure 4 It is a structural diagram of the automatic telescopic fork;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the space adjustment component from the first perspective;

[0028] Figure 6 This is a schematic diagram of the cross-sectional structure of the space adjustment component from a second viewing angle;

[0029] Figure 7 This is a schematic diagram of the drive box structure of the space adjustment component;

[0030] Figure 8 This is a schematic diagram of the rear structure of the material box.

[0031] Reference numerals

[0032] 1. Lifting bracket; 2. Lifting slide rail; 3. Removal box; 4. Linear slide rail; 5. Vacuum pump; 6. Nitrogen injection device; 7. Nitrogen recovery device; 8. Electrical control cabinet; 9. Airbag; 31. Outer box; 32. Space adjustment assembly; 33. Removal assembly; 34. Removal chamber; 35. Exhaust hole; 36. Injection hole; 331. Upper fork body; 332. Middle fork body; 333. Lower fork body; 321. First partition; 322. Second partition; 323. Drive device box; 324. Connecting block; 325. Servo motor; 326. Bidirectional screw. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention. Example

[0034] like Figure 1 As shown, an inert gas intelligent material warehouse includes shelves and stackers. There are multiple independent storage spaces in the shelves, which are filled with nitrogen. The storage spaces are composed of multiple horizontally and vertically arranged storage spaces for storing goods. There are two shelves, and the aisle between the two shelves is an aerobic environment. A linear slide rail 4 is provided in the aisle to facilitate the stacker to move under electric drive.

[0035] like Figure 2 As shown, the stacker includes a lifting fixed frame 1, a lifting slide rail 2, a material picking box 3 and a linear slide rail 4. The linear slide rail 4 is laid flat in the alley to facilitate the horizontal movement of the stacker in the material warehouse. The lifting fixed frame 1 is slidably connected to the linear slide rail 4. The lifting fixed frame 1 provides a guide rail installation space for the material picking box 3. The lifting slide rail 2 is fixedly installed on the lifting fixed frame 1. The lifting slide rail 2 is slidably connected to the material picking box 3. The material picking box 3 moves vertically along the lifting slide rail 2 under the drive of the servo motor to reach the target warehouse position.

[0036] like Figure 3 As shown, the material picking box 3 includes an outer box body 31, a space adjustment component 32 and a material picking component 33. An airbag 8 is provided on the contact surface between the outer box body 31 and the shelf. After the stacker reaches the target warehouse, the airbags 8 around the material picking box 3 pop up and press against the surrounding of the target warehouse, forming an enclosed space with the target warehouse.

[0037] like Figure 5 and 6 As shown, a feeding cavity 34 with a feeding port on one side is provided in the outer box body 31, and a feeding assembly 33 that can extend out of the feeding cavity 34 is fixedly installed in the center of the feeding cavity 34, and the space adjustment assembly 32 is movably arranged on both sides of the feeding assembly 33. According to the three-dimensional information of the target goods in the system, the space adjustment assembly 32 adjusts the size of the feeding cavity 34, and the servo motor 325 in the space adjustment assembly 32 drives the connecting block 324 connected to the bidirectional screw rod 326 to move, and the connecting block 324 then drives the L-shaped partition to move. The first partition 321 and the second partition 322 are sealed and vertically connected by welding to form an L-shaped partition, so that an adjustable feeding cavity 34 is formed between the space adjustment assembly 32 and the outer box body 31, and the first partition 321 is embedded in the avoidance groove opened above the outer box body 31, and the drive device box 323 is arranged above the avoidance groove, and the feeding cavity and the drive device box 323 form a closed space, as shown in FIG. Figure 7 shown.

[0038] like Figure 3 and Figure 8As shown, through nitrogen replacement, the nitrogen environment in the adjustable material taking chamber 34 is adjusted to be the same as that in the warehouse. A plurality of exhaust holes 35 and a plurality of gas injection holes 36 are fixedly opened on the cavity wall of the adjustable material taking chamber; a vacuum pump 5 is also fixedly installed on the outer box body 31, and the vacuum pump 5 is connected to the first exhaust hole 35 through a pipeline to discharge the air in the material taking chamber 34; a nitrogen injection device 6 is connected to the first gas injection hole 36 through a pipeline to inject nitrogen into the material taking chamber 34 until the nitrogen value in the material taking chamber 34 is the same as that in the warehouse.

[0039] The bin door is opened, and the material taking component 33 performs the operation of storing and retrieving goods, such as Figure 4 As shown, the material-retrieving component 33 is an automatic telescopic fork, which includes a lower fork body 333, a middle fork body 332, an upper fork body 331 and a driving device. The middle fork body 332 is slidably connected to the lower fork body 333, and the upper fork body 331 is slidably connected to the middle fork body 332. The driving device is fixedly installed on the lower side of the material-retrieving chamber 34. The automatic telescopic fork is driven by the driving motor to drive the gear to rotate, thereby driving the rack to move. The rack is connected to the lower fork body, and the automatic telescopic fork performs cargo storage and retrieval operations under the action of the driving device.

[0040] When the bin door is closed, the nitrogen recovery device 7 recovers the nitrogen in the bin for reuse next time, saving resources. The nitrogen recovery device 7 is connected to the second exhaust hole 35 through a pipeline to recover the nitrogen in the material taking cavity 34, saving nitrogen resources. The nitrogen recovery device 7 is connected to the nitrogen injection device 6 through a pipeline; a deflation valve is provided on the second injection hole 36 to facilitate air to enter the box and deflate the airbag.

[0041] An electrical control cabinet 8 is fixedly installed below the lifting fixed frame 1 of the stacker, which serves as the power control unit of the entire stacker.

[0042] A method for storing and retrieving goods from shelves using a stacker, the method comprising: step 1, providing a stacker; step 2, providing a shelf having a nitrogen-filled bin; step 3, an automatic control system controlling the stacker to move horizontally along a linear slide 4 to a horizontal position where a target bin is located, controlling a material-retrieving box 3 of the stacker to move vertically along a lifting slide 2 to select a target bin; step 4, using an air pump to inflate an airbag 9 on the front side of the material-retrieving box 3 to open it, thereby forming a sealed space with the target bin, and the system detecting the position of the target bin; The three-dimensional information of the cargo is obtained, and the stacker's space adjustment component 32 is controlled to automatically adjust the size of the material extraction chamber 34. In step 5, the air in the material extraction chamber 34 is exhausted through the first exhaust hole 35, and nitrogen is injected into the material extraction chamber 34 through the first air injection hole 36. In step 6, the target location is opened, and the material extraction component 33 performs the cargo storage and retrieval operation. In step 7, the target location is closed, the nitrogen in the material extraction chamber 34 is recovered through the second exhaust hole 35, and air is injected into the material extraction chamber 34 through the air injection hole 36, and the airbag 9 is deflated. In step 8, the stacker moves to the target location, completing the transport.

[0043] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. An inert gas intelligent material warehouse, comprising shelves and a stacker; The rack has multiple independent storage spaces filled with nitrogen. The storage spaces are composed of multiple horizontally and vertically arranged bins for storing goods. The stacker comprises a lifting fixed frame (1), a lifting slide rail (2), a material taking box (3) and a linear slide rail (4), wherein the lifting fixed frame (1) is slidably connected to the linear slide rail (4), the lifting fixed frame (1) is fixedly mounted with the lifting slide rail (2), and the material taking box (3) is slidably connected to the lifting slide rail (2), and is characterized in that: The material taking box (3) of the stacker includes an outer box body (31), a space adjustment component (32) and a material taking component (33); The outer box (31) is provided with a material taking cavity (34) with a material taking opening on one side, and a material taking component (33) that can extend out of the material taking cavity (34) is fixedly installed at the center of the material taking cavity (34); The space adjustment component (32) is movably arranged on both sides of the material taking component (33), and an adjustable material taking cavity (34) is formed between the space adjustment component (32) and the outer box body (31); Two exhaust holes and two air injection holes are fixedly provided on the wall of the adjustable material taking cavity (34); A vacuum pump (5), a nitrogen injection device (6) and a nitrogen recovery device (7) are also fixedly mounted on the outer box (31); The vacuum pump (5) is connected to the first exhaust hole through a pipeline; The nitrogen injection device (6) is connected to the first gas injection hole through a pipeline, and the second gas injection hole is provided with a gas release valve; The nitrogen recovery device (7) is connected to the second exhaust hole through a pipeline, and the nitrogen recovery device (7) is connected to the nitrogen injection device (6) through a pipeline; The outer box (31) is provided with air bags (9) around one side where the material taking port is opened, and is connected to the air pump through a pipeline; The adjustable material taking cavity (34) of the stacker and the shelf position can form a relatively closed space for storing and taking goods.

2. The inert gas intelligent storage system according to claim 1, characterized in that: The material taking assembly (33) includes an automatic telescopic fork, which includes a lower fork body (333), a middle fork body (332), an upper fork body (331) and a driving device. The lower fork body (333) is slidably connected to the middle fork body (332), and the middle fork body (332) is slidably connected to the upper fork body (331). The driving device is fixedly installed on the lower side of the material taking cavity (34) and is connected to the lower fork body (333) through a gear rack, thereby driving the fork to move horizontally.

3. The inert gas intelligent storage system according to claim 1, characterized in that: The space adjustment component (32) comprises a first partition (321), a second partition (322), a sealing groove, a slide rail, a avoidance groove and a drive device box (323); the slide rails are fixedly installed on the left and right sides of the outer box (31), the second partition (322) is slidably connected to the slide rails, and the second partition (322) is fixedly vertically connected to the first partition (321).

4. The inert gas intelligent storage system according to claim 3, characterized in that: A sealing groove is provided at the lower part of the outer box body (31), a slide rail is fixedly installed in the sealing groove, a first partition (321) is slidably connected to the slide rail, and the first partition (321) is embedded in a avoidance groove opened above the outer box body (31). The driving device box (323) is provided above the avoidance groove and forms a closed space with the material taking chamber (34).

5. The inert gas intelligent storage according to claim 4, characterized in that: The driving device box (323) includes a connecting block (324), a servo motor (325) and a bidirectional screw rod (326). The first partition (321) is connected to the bidirectional screw rod (326) via the connecting block (324). The servo motor (325) is fixedly mounted on the right side or the left side of the screw rod and is used to drive the first partition (321) to move along the slide rail.

6. The inert gas intelligent storage system according to claim 1, characterized in that: An electrical control cabinet (8) is fixedly installed below the lifting fixed frame (1) and serves as the motion control unit for the entire stacker.

7. The inert gas intelligent storage system according to claim 1, characterized in that: The shelves are arranged in two rows, and there is a lane in the middle of the shelves. The lane is an aerobic environment, and a linear slide rail (4) is arranged in the lane. The stacker moves horizontally on the linear slide rail (4).

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