Automatic sample dispensing equipment for connecting to grain sample storage facilities

Abstract

This utility model relates to the technical field of grain transportation and storage devices, specifically to an automatic sample dispensing device for docking with a grain sample storage facility. The utility model includes a sample bottle conveying unit, a capping unit, a sample bottle fixing mechanism, a dispensing and collection bin, and a moving mechanism. The capping unit and the sample bottle fixing mechanism work together to open and close the sample bottles at the capping station. The sample bottle fixing mechanism is mounted on top of the dispensing and collection bin via a sample bottle rotating mechanism, which switches between the capping and dispensing stations. Along the conveying trajectory of the sample bottle conveying unit, there are sequentially arranged inlet, temporary storage, and outlet stations. The capping unit is mounted on the moving mechanism, which is suitable for reciprocating the transfer of the sample bottles, held and fixed by the capping unit, between the capping and temporary storage stations. This utility model can improve the efficiency of the sample dispensing process after sample expiration.

Description

Technical Field

[0001] This utility model relates to the technical field of grain transportation and storage devices, specifically to an automatic sample dispensing device for connecting to a grain sample storage facility. Background Technology

[0002] During the grain procurement period, in order to verify any suspicious results and ensure food safety, it is necessary to sample and test the grain entering the warehouse and retain the samples. Grain sampling involves placing the grain into disposable sealed bags or sealed sample bottles with lids. After the sample expires, the bottle needs to be manually opened, the contents poured out, the lid closed again, and the empty bottle returned to the automated warehouse. This manual method is inefficient.

[0003] Furthermore, Chinese patent document CN118289426A discloses a sample transport device, comprising: a sample bottle transport unit and a capping unit. Along the transport trajectory of the sample bottle transport unit are sequentially arranged an empty bottle buffer station, a capping station, a receiving station, and a sample buffer station. The capping unit is located on the sample bottle transport unit at the capping station. Empty sample bottles are buffered at the empty bottle buffer station of the sample bottle transport unit, awaiting opening for receiving. The sample bottle transport unit transports the empty sample bottle from the empty bottle buffer station to the capping station. The capping unit at the capping station opens the cap of the empty sample bottle. Then, the sample bottle transport unit transports the sample bottle to the receiving station. After the sample is loaded into the sample bottle at the receiving station, it is transported again by the sample bottle transport unit to the capping station, where the capping unit closes the cap. After the cap is closed, the sample bottle is transported by the sample bottle transport unit to the sample buffer station for storage. The above solution is designed for the front-end sample collection and storage process and is not applicable to the automatic unloading of samples after they expire. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an automatic sample unloading device for connecting to a grain sample storage facility, thereby improving the efficiency of the unloading process after the sample expires.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an automatic sample dispensing device for connecting to a grain sample storage facility, including a sample bottle conveying unit, a capping unit, a sample bottle fixing mechanism, a dispensing collection bin, and a moving mechanism; the sample bottle conveying unit is suitable for conveying sample bottles, the capping unit includes a cap clamping mechanism that can be raised and lowered along the Z-axis, the cap clamping mechanism is suitable for clamping and fixing the cap of the sample bottle, and the sample bottle fixing mechanism is suitable for clamping and fixing the bottle body of the sample bottle. The sample bottle fixing mechanism is set at the capping station. Under the cooperative action of the capping unit and the sample bottle fixing mechanism, it is possible to... The sample bottle is opened and closed at the capping station. The sample bottle fixing mechanism is installed on the top of the pouring and collecting bin via the sample bottle rotating mechanism. The sample bottle rotating mechanism is used to switch the sample bottle fixing mechanism between the capping station and the pouring station. The pouring station is suitable for pouring the sample from the sample bottle fixed on the sample bottle fixing mechanism into the pouring and collecting bin. Along the conveying trajectory of the sample bottle conveying unit, there are sequentially arranged bottle entry station, temporary storage station and bottle exit station. The capping unit is installed on the moving mechanism. The moving mechanism is suitable for reciprocating the sample bottle, which is clamped and fixed by the cap clamping mechanism, between the capping station and the temporary storage station.

[0006] To save on equipment investment and achieve a more compact overall equipment layout, the preferred solution is that the sample bottle conveying unit is a linear conveying unit whose conveying direction can be switched by controlling the forward and reverse rotation of the motor output shaft. When the conveying direction of the sample bottle conveying unit is in the first direction, it is used to convey the sample bottles from the inlet station to the temporary storage station; when the conveying direction is in the second direction, it is used to convey the sample bottles from the temporary storage station to the outlet station. To make the operation more stable and reliable, a further preferred solution is that the sample bottle conveying unit is equipped with a stop block at the temporary storage station.

[0007] To ensure a simple and reliable structure, the preferred embodiment is that the bottle cap clamping mechanism is mounted on the first base via a lifting mechanism, allowing the clamping mechanism to move up and down relative to the first base along the Z-axis. The moving mechanism includes an X-axis linear moving module, a Y-axis linear moving module, and a Z-axis linear moving module. The X-axis linear moving module drives the first base to reciprocate along the X-axis relative to the sample bottle conveying unit. The Y-axis linear moving module drives the first base to reciprocate along the Y-axis relative to the sample bottle conveying unit. The Z-axis linear moving module drives the first base to move up and down relative to the sample bottle conveying unit along the Z-axis. Any two of the X-axis, Y-axis, and Z-axis are perpendicular to each other.

[0008] Regarding the preferred embodiment described above, "the sample bottle conveying unit is a linear conveying unit whose conveying direction can be switched by controlling the forward and reverse rotation of the motor output shaft," to make the structure simple and reliable, a further preferred embodiment is that the conveying direction of the sample bottle conveying unit is set along the X-axis. The X-axis linear movement module includes X-direction slide rails fixedly mounted on both sides of the sample bottle conveying unit, and an X-direction sliding base is slidably mounted on the X-direction slide rails. The Y-axis linear movement module includes Y-direction slide rails fixedly mounted on the X-direction sliding bases, and a Y-direction sliding base is slidably mounted on the Y-direction slide rails. The Z-axis linear movement module includes Z-direction slide rails fixedly mounted on the Y-direction sliding bases, and a first base is slidably mounted on the Z-direction slide rails.

[0009] To improve the versatility of the equipment, the preferred solution is that the bottle cap clamping mechanism is mounted on the second base via a bottle cap rotating mechanism, and the lifting mechanism is connected between the first base and the second base.

[0010] To ensure a simple and reliable structure, the preferred embodiment is that the sample bottle fixing mechanism includes a fixing base driven to rotate by a sample bottle rotating mechanism. The fixing base has a support plate suitable for supporting and positioning the bottom end face of the sample bottle. Two grippers arranged opposite to each other are installed on the fixing base. The two grippers can move closer to each other and further away from each other. The two grippers are used to hold and fix the middle position of the sample bottle.

[0011] To facilitate the transfer of samples in the material collection bin, the preferred solution is that the bottom of the material collection bin has a collection hopper, and the bottom of the collection hopper is connected to the discharge channel via a screw conveyor. The screw conveyor is used to transport the samples in the collection hopper to the discharge channel for discharge.

[0012] To facilitate monitoring of the sample accumulation height in the discharge hopper and timely transfer of samples from the discharge hopper, a further preferred solution is to include a control system, with a material level sensor installed on the upper part of the inner cavity of the discharge hopper, and both the material level sensor and the screw conveyor being electrically connected to the control system.

[0013] To further improve work efficiency, the preferred solution includes a control system. The sample bottle conveying unit is equipped with a visual recognition device in the area between the bottle entry station and the temporary storage station to identify the number and location of sample bottles. The sample bottle conveying unit, capping unit, sample bottle fixing mechanism, moving mechanism, sample bottle rotating mechanism and visual recognition device are all electrically connected to the control system. The sample bottle conveying unit is suitable for conveying a tray for holding multiple sample bottles.

[0014] To facilitate automated control, a further preferred solution is that the sample bottle conveying unit is equipped with an induction switch at the bottle entry station to identify the placement of the bottle tray, and the induction switch is electrically connected to the control system.

[0015] The beneficial effects of this utility model are as follows: This utility model is applicable to the process of emptying sample bottles in a grain sample storage system during grain testing and returning empty sample bottles to the system. In practice, the sample bottles containing samples are first buffered at the buffer station of the sample bottle conveying unit. Then, the moving mechanism moves the capping unit to the corresponding position, and the bottle cap clamping mechanism clamps and fixes the sample bottle (by clamping and fixing the bottle cap, the entire sample bottle is clamped and fixed). The sample bottle is then transferred from the temporary storage station to the capping station. At the capping station, the sample bottle fixing mechanism clamps and fixes the bottle body. The capping unit opens the bottle cap, and then the sample bottle rotating mechanism, through the sample bottle fixing mechanism, drives... The sample bottle rotates at a preset angle to switch to the pouring station, where the sample inside is automatically poured into the pouring collection bin. After pouring, the empty sample bottle is rotated to the capping station by a rotating mechanism. The capping unit closes the cap, and the empty sample bottle is then transported to the buffer station by a moving mechanism (equivalent to the capping unit moving to the buffer station, the cap clamping mechanism releasing the cap, thus releasing the sample bottle to the buffer station), awaiting delivery to the outlet station. Compared to traditional manual methods, this invention effectively improves work efficiency when pouring sample bottles. During the reciprocating transfer between the capping station and the temporary storage station, the sample bottle is transferred by clamping and fixing the cap. The cap edge has high strength, and the three-layer structure (cap, bottle body, and thread) provides significant strength, reducing the risk of sample bottle deformation. Attached Figure Description

[0016] Figure 1 This is an isometric drawing of this utility model;

[0017] Figure 2 yes Figure 1 A magnified view of point A in the image;

[0018] Figure 3 yes Figure 1 A magnified view of section B in the image;

[0019] Figure 4 This is a top view of the present invention;

[0020] Figure 5 This is a front view of the present invention.

[0021] The components in the diagram are labeled as follows: sample bottle conveying unit 100, positioning stop 101, bottle tray 102, capping unit 200, cap clamping mechanism 201, lifting mechanism 202, first base 203, second base 204, sample bottle fixing mechanism 300, fixing base 301, support plate 302, gripper 303, sample bottle 400, material collection bin 500, material collection hopper 501, screw conveyor 502, discharge channel 503, material level sensor 504, moving mechanism 600, X-axis linear moving module 601, Y-axis linear moving module 602, Z-axis linear moving module 603, sample bottle rotating mechanism 700, vision recognition device 800, and inductive switch 801. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Combination Figures 1 to 5 As shown, this utility model includes a sample bottle conveying unit 100, a capping unit 200, a sample bottle fixing mechanism 300, a material collection bin 500, and a moving mechanism 600. The sample bottle conveying unit 100 is used to convey sample bottles 400. The capping unit 200 includes a cap clamping mechanism 201 that can be raised and lowered along the Z-axis. The cap clamping mechanism 201 is used to clamp and fix the cap of the sample bottle 400. The sample bottle fixing mechanism 300 is used to clamp and fix the bottle body of the sample bottle 400. The sample bottle fixing mechanism 300 is set at the capping station. With the cooperation of the capping unit 200 and the sample bottle fixing mechanism 300, the sample bottle 400 can be opened at the capping station. The sample bottle fixing mechanism 300 is installed on the top of the pouring and collecting bin 500 via the sample bottle rotating mechanism 700. The sample bottle rotating mechanism 700 is used to switch the sample bottle fixing mechanism 300 between the capping station and the pouring station. The pouring station is suitable for pouring the sample from the sample bottle 400 fixed on the sample bottle fixing mechanism 300 into the pouring and collecting bin 500. The sample bottle conveying unit 100 is provided with a bottle inlet station, a temporary storage station and a bottle outlet station in sequence along the conveying trajectory. The capping unit 200 is installed on the moving mechanism 600. The moving mechanism 600 is suitable for reciprocating the sample bottle 400, which is clamped and fixed by the cap clamping mechanism 201, between the capping station and the temporary storage station.

[0024] In practice, the sample bottle 400 containing the sample is first buffered at the buffer station of the sample bottle conveying unit 100. Then, the moving mechanism 600 moves the capping unit 200 to the corresponding position, and the bottle cap clamping mechanism 201 clamps and fixes the sample bottle 400 (by clamping and fixing the bottle cap of the sample bottle 400, the entire sample bottle 400 is clamped and fixed), and the sample bottle 400 is transferred from the temporary storage station to the capping station. The sample bottle fixing mechanism 300 at the capping station clamps and fixes the bottle body of the sample bottle 400, and the capping unit 200 opens the bottle cap of the sample bottle 400. Then, the sample bottle rotating mechanism 700, through the sample bottle fixing mechanism 300, moves the sample bottle 400 to the next position. The sample bottle 400 rotates at a preset angle to switch to the pouring station, where the sample inside is automatically poured into the pouring collection bin 500. After pouring, the empty sample bottle 400 is rotated to the capping station by the sample bottle rotating mechanism 700. The capping unit 200 closes the cap of the sample bottle 400, and the empty sample bottle 400 is then transported back to the buffer station by the moving mechanism 600 (equivalent to the capping unit 200 moving to the buffer station, the cap clamping mechanism 201 releasing the cap of the sample bottle 400, thus releasing the sample bottle 400 to the buffer station), awaiting delivery to the bottle exit station. Compared to traditional manual operation, this invention effectively improves work efficiency when pouring the sample bottle 400. When the sample bottle 400 is transferred back and forth between the capping station and the temporary storage station, the bottle cap is clamped and fixed to facilitate the transfer. The edge of the bottle cap has high strength, and the bottle body and threads have a three-layer structure, which reduces the risk of deformation of the sample bottle 400. If conventional clamping methods are used, especially for plastic bottles, prolonged clamping can easily lead to deformation when the bottle is not filled with grain.

[0025] The sample bottle conveying unit 100 only needs to be suitable for automatically conveying the sample bottles 400. Various conventional conveying equipment in the prior art can be used. It can be used for directly and automatically conveying the sample bottles 400, or it can be used to convey the sample bottles 400 via the bottle carrier tray 102, which can accommodate multiple sample bottles 400 simultaneously. In a preferred embodiment, the sample bottles 400 are generally conveyed via the bottle carrier tray 102.

[0026] To save on equipment investment and make the overall equipment layout more compact, in some preferred embodiments, the sample bottle conveying unit 100 is a linear conveying unit whose conveying direction can be switched by controlling the forward and reverse rotation of the motor output shaft. When the conveying direction of the sample bottle conveying unit 100 is in the first direction, the sample bottle conveying unit 100 is used to convey the sample bottle 400 from the bottle-in station to the temporary storage station. When the conveying direction of the sample bottle conveying unit 100 is in the second direction, the sample bottle conveying unit 100 is used to convey the sample bottle 400 from the temporary storage station to the bottle-out station. The sample bottle conveying unit 100 described above can typically be a belt conveyor or a chain conveyor as used in the prior art. In some alternative embodiments, the sample bottle conveying unit 100 can also operate in only one direction, and the bottle-in station, the temporary storage station, and the bottle-out station can be arranged sequentially and alternately along the conveying direction. The sample bottle conveying unit 100 can also be composed of multiple conveying devices. Its overall conveying direction can be arranged in a straight line, an L-shape, or other composite manner, as long as it can enable the sample bottle 400 to switch between the three stations of the bottle entry station, the temporary storage station, and the bottle exit station. For example, the sample bottle conveying unit 100 can be arranged with reference to the scheme in Chinese patent document with publication number CN118289426A.

[0027] To ensure more stable and reliable operation, in a preferred embodiment, the sample bottle conveying unit 100 is equipped with a stop block 101 at the temporary storage station. When the bottle tray 102 or the sample bottle 400 moves to abut against the stop block 101, it indicates that the sample bottle 400 has been moved into position and is in the temporary storage station. The stop block 101 serves a positioning function and also restricts the movement of the sample bottle 400 along the conveying direction of the sample bottle conveying unit 100 during the temporary storage process.

[0028] To ensure a simple and reliable structure, in a preferred embodiment, the bottle cap clamping mechanism 201 is mounted on the first base 203 via a lifting mechanism 202, allowing the clamping mechanism 201 to move up and down relative to the first base 203 along the Z-axis. This means that, without considering the additional functions of the moving mechanism 600, the clamping mechanism 201 can independently achieve lifting and lowering movement using the lifting mechanism 202. Its travel distance typically only needs to meet the requirement that the capping unit 200 can open and close the bottle cap of the sample bottle 400. The clamping mechanism 201 can employ various electric or pneumatic grippers from the prior art. The clamping mechanism 201 may only have a lifting function; this solution is suitable for sample bottles 400 with both press-fit and snap-fit ​​caps. To improve the versatility of the device, in a preferred embodiment, the bottle cap clamping mechanism 201 may also have a rotation function to accommodate sample bottles 400 with threaded caps. Its specific structure will be further described later in conjunction with a preferred embodiment of the moving mechanism 600. It is understandable that the screw cap unit 200 can be implemented in general with reference to existing technology, such as Chinese patent documents with publication numbers CN118289426A and CN223762619U.

[0029] To ensure a simple and reliable structure, in a preferred embodiment, the moving mechanism 600 includes an X-axis linear moving module 601, a Y-axis linear moving module 602, and a Z-axis linear moving module 603. The X-axis linear moving module 601 drives the first base 203 to reciprocate along the X-axis relative to the sample bottle conveying unit 100. The Y-axis linear moving module 602 drives the first base 203 to reciprocate along the Y-axis relative to the sample bottle conveying unit 100. The Z-axis linear moving module 603 drives the first base 203 to move up and down along the Z-axis relative to the sample bottle conveying unit 100. Any two of the X-axis, Y-axis, and Z-axis are perpendicular to each other. In other words, the X-axis linear motion module 601, the Y-axis linear motion module 602, and the Z-axis linear motion module 603 constitute a three-axis motion mechanism similar to that in a machine tool. The positions of the three can be interchanged. As long as they can drive the first base 203 to move in the three directions of X, Y, and Z, they can drive the capping unit 200 to move in the three directions of X, Y, and Z, so that the moving mechanism 600 can reciprocate between the capping station and the temporary storage station, with the sample bottle 400 clamped and fixed by the cap clamping mechanism 201.

[0030] In the above preferred embodiment, the bottle cap clamping mechanism 201 is mounted on the second base 204 via the bottle cap rotating mechanism, and the lifting mechanism 202 is connected between the first base 203 and the second base 204. That is, the lifting mechanism 202 is used to drive the second base 204 to move up and down relative to the first base 203 along the Z-axis. The lifting mechanism 202 can generally adopt a motor-driven screw and slider structure, and the bottle cap rotating mechanism can adopt a conventional motor-driven mechanism.

[0031] For the preferred embodiment described above, where the sample bottle conveying unit 100 is a linear conveying unit whose conveying direction can be switched by controlling the forward and reverse rotation of the motor output shaft, to ensure a simple and reliable structure, the preferred layout of the moving mechanism 600 is as follows: the conveying direction of the sample bottle conveying unit 100 is set along the X-axis; the X-axis linear moving module 601 includes X-direction slide rails fixedly mounted on both sides of the sample bottle conveying unit 100, with an X-direction sliding base slidably mounted on the X-direction slide rails; the Y-axis linear moving module 602 includes a Y-direction slide rail fixedly mounted on the X-direction sliding base, with a Y-direction sliding base slidably mounted on the Y-direction slide rails; and the Z-axis linear moving module 603 includes a Z-direction slide rail fixedly mounted on the Y-direction sliding base, with a first base 203 slidably mounted on the Z-direction slide rail. The X-axis linear moving module 601, Y-axis linear moving module 602, and Z-axis linear moving module 603 can all adopt a motor-driven screw-slider structure. In some alternative embodiments, the moving mechanism 600 may also employ a combination of various linear displacement mechanisms and rotary mechanisms, as long as the moving mechanism 600 is able to reciprocate between the capping station and the temporary storage station, with the sample bottle 400 clamped and fixed by the cap clamping mechanism 201.

[0032] To ensure structural simplicity and reliability, in some preferred embodiments, the sample bottle fixing mechanism 300 includes a fixed base 301 driven to rotate by the sample bottle rotating mechanism 700. The fixed base 301 has a support plate 302 suitable for supporting and positioning the bottom surface of the sample bottle 400. Two opposing grippers 303 are mounted on the fixed base 301, which can move closer to or further away from each other. The two grippers 303 are used to clamp and fix the middle part of the sample bottle 400. In specific implementation, after the sample bottle 400 is transferred from the temporary storage station to the capping station, the support plate 302 first supports and positions the bottom surface of the sample bottle 400, and then the two grippers 303 clamp and fix the bottle body. The two grippers 303 can be driven by a cylinder or by a bidirectional lead screw and a motor. The sample bottle rotating mechanism 700 can use a conventional motor-driven mechanism.

[0033] To facilitate the transfer of samples within the material collection bin 500, in some preferred embodiments, the bottom of the material collection bin 500 has a collection hopper 501. The bottom of the collection hopper 501 is connected to the discharge channel 503 via a screw conveyor 502. The screw conveyor 502 is used to transport the samples in the collection hopper 501 to the discharge channel 503 for discharge.

[0034] To facilitate monitoring the sample accumulation height within the discharge hopper 500 and timely transfer of samples, in some preferred embodiments, this invention also includes a control system. A level sensor 504 is installed on the upper part of the inner cavity of the discharge hopper 500. Both the level sensor 504 and the screw conveyor 502 are electrically connected to the control system. When the level sensor 504 detects that the sample accumulation in the discharge hopper 500 has reached a set height, it automatically starts the screw conveyor 502 to transport the sample in the collection hopper 501 to the discharge channel 503 for discharge. It is understood that controlling the actuator's action through the level sensor 504 can be achieved using conventional control programs; this invention does not involve improvements to the computer program.

[0035] To further improve work efficiency, in some preferred embodiments, this utility model also includes a control system. The sample bottle conveying unit 100 is equipped with a visual recognition device 800 for identifying the number and position of sample bottles 400 in the area between the bottle entry station and the temporary storage station. The sample bottle conveying unit 100, the capping unit 200, the sample bottle fixing mechanism 300, the moving mechanism 600, the sample bottle rotating mechanism 700, and the visual recognition device 800 are all electrically connected to the control system. The sample bottle conveying unit 100 is suitable for conveying a bottle tray 102 for accommodating multiple sample bottles 400. To facilitate automated control, the bottle entry station of the sample bottle conveying unit 100 is equipped with an induction switch 801 for identifying the placement of the bottle tray 102. The induction switch 801 is electrically connected to the control system. It is understood that this utility model only requires protection of the hardware structure involved in the above scheme and does not require protection of the computer program. Those skilled in the art only need to design the control program for specific working conditions. In practical implementation, the visual recognition device 800 is used to identify the number and position of the sample bottles 400, and then controls the movement mechanism 600 to match the positions of the capping unit 200 and the sample bottles 400 at the temporary storage station. It is understood that the use of the visual recognition device 800 is common knowledge to those skilled in the art, and can be found in Chinese patent document CN223762619U. This utility model does not involve improvements to the computer program.

[0036] In a preferred embodiment of this utility model, the cap of the sample bottle 400 adopts a threaded interface, and the specific operation can be carried out according to the following steps:

[0037] Step 1: The bottle tray 102 is pre-loaded with multiple sample bottles 400 containing samples. The front-end AGV trolley or other connecting device transfers the bottle tray 102 to the bottle-in station of the sample bottle conveying unit 100. According to the instructions of the overall control system, or the sensor switch 801 recognizes that the bottle tray 102 has been placed, the vision recognition device 800 identifies the number and position distribution of the sample bottles 400 on the bottle tray 102, marks the location, and submits the corresponding coordinates to the moving mechanism 600. After the recognition is completed, the sample bottle conveying unit 100 runs forward, conveying the bottle tray 102 to the buffer station until it contacts the stop block 102, then stops running and proceeds to the next step.

[0038] Step 2: The moving mechanism 600 moves the capping unit 200 to the corresponding position along the X and Y axes according to the corresponding position coordinates, and then moves the capping unit 200 along the Z axis to a position 20mm above the bottle cap.

[0039] Step 3: The capping unit 200 operates, using the cap clamping mechanism 201 to clamp and fix the sample bottle 400 (by clamping and fixing the cap of the sample bottle 400, the entire sample bottle 400 is clamped and fixed). After clamping, the moving mechanism 600 transfers the capping unit 200 and the sample bottle 400 from the temporary storage station to the capping station. The sample bottle rotating mechanism 700 waits in its initial position, and the sample bottle fixing mechanism 300 is at the capping station. After the capping unit 200 places the sample bottle 400 on the support plate 302, the two grippers 303 move closer together to clamp and fix the bottle body, and the cap is screwed on. Unit 200 screws on the cap, opening the cap of sample bottle 400. The capping unit 200 then moves away, and the sample bottle rotation mechanism 700, through the sample bottle fixing mechanism 300, rotates the sample bottle 400 by a preset angle (e.g., 150°). At this time, the sample inside the sample bottle 400 can be automatically poured into the material collection bin 500. The pouring time of the sample bottle 400 can be set according to actual conditions, for example, designed to be 30 seconds. After the sample bottle 400 is poured, the empty sample bottle 400 is rotated to the capping position (rotating 150° in the opposite direction) using the sample bottle rotation mechanism 700.

[0040] Step four: The capping unit 200 moves to the initial position (capping station) and then caps the sample bottle 400. During the capping process in the empty bottle state, after 3 turns of the cap (at this time it is not fully tightened, the thread is 3.5 turns), the two grippers 303 of the sample bottle fixing mechanism 300 loosen, and the cap clamping mechanism 201 of the capping unit 200 drives the bottle body to rotate as a whole, avoiding full tightening in the empty bottle state and reducing the risk of bottle deformation.

[0041] Step 5: The empty sample bottle 400 is transported to the buffer station again by the moving mechanism 600. This is equivalent to the capping unit 200 moving to the buffer station. The cap clamping mechanism 201 releases the cap of the sample bottle 400, thereby releasing the sample bottle 400 to the buffer station. After all the sample bottles 400 have been emptied, and the front-end AGV or other docking body is ready to be docked, the sample bottle conveying unit 100 runs in reverse, transporting the bottle tray 102 away from the positioning stop 101. The bottle tray 102 leaves the sample bottle conveying unit 100.

[0042] Step six: In the material collection bin 500, according to the instruction or the material level sensor 504 sensing that the grain is full, the screw conveyor 502 is used to transport the sample in the collection hopper 501 to the discharge channel 503 for discharge; at this point, one process is completed.

Claims

1. An automatic sample dispensing device for connecting to a grain sample storage facility, comprising a sample bottle conveying unit (100), a capping unit (200), and a sample bottle fixing mechanism (300); the sample bottle conveying unit (100) is used to convey sample bottles (400), the capping unit (200) includes a cap clamping mechanism (201) that can be raised and lowered along the Z-axis, the cap clamping mechanism (201) is used to clamp and fix the cap of the sample bottle (400), the sample bottle fixing mechanism (300) is used to clamp and fix the bottle body of the sample bottle (400), the sample bottle fixing mechanism (300) is set at the capping station, and under the cooperative action of the capping unit (200) and the sample bottle fixing mechanism (300), the sample bottle (400) can be opened and closed at the capping station, characterized in that, The system includes a material collection bin (500) and a moving mechanism (600). The sample bottle fixing mechanism (300) is installed on the top of the material collection bin (500) via a sample bottle rotating mechanism (700). The sample bottle rotating mechanism (700) is used to switch the sample bottle fixing mechanism (300) between the capping station and the material pouring station. The material pouring station is suitable for pouring the sample from the sample bottle (400) fixed on the sample bottle fixing mechanism (300) into the material collection bin (500). The sample bottle conveying unit (100) has a bottle inlet station, a temporary storage station and a bottle outlet station arranged sequentially along its conveying trajectory. The capping unit (200) is installed on the moving mechanism (600). The moving mechanism (600) is suitable for reciprocating the sample bottle (400) clamped and fixed by the cap clamping mechanism (201) between the capping station and the temporary storage station.

2. The automatic sample dispensing device for connecting to a grain sample storage facility according to claim 1, characterized in that: The sample bottle conveying unit (100) is a linear conveying unit whose conveying direction can be switched by controlling the forward and reverse rotation of the motor output shaft; when the conveying direction of the sample bottle conveying unit (100) is in the first direction, the sample bottle conveying unit (100) is used to convey the sample bottle (400) from the bottle entry station to the temporary storage station; when the conveying direction of the sample bottle conveying unit (100) is in the second direction, the sample bottle conveying unit (100) is used to convey the sample bottle (400) from the temporary storage station to the bottle exit station; the sample bottle conveying unit (100) is equipped with a stop block (101) at the temporary storage station.

3. The automatic sample dispensing device for docking with a grain sample storage facility according to claim 1, characterized in that: The bottle cap clamping mechanism (201) is mounted on the first base (203) via the lifting mechanism (202) so that the clamping mechanism (201) can be raised and lowered relative to the first base (203) along the Z-axis. The moving mechanism (600) includes an X-axis linear moving module (601), a Y-axis linear moving module (602) and a Z-axis linear moving module (603). The X-axis linear moving module (601) is used to drive the first base (203) to reciprocate along the X-axis relative to the sample bottle conveying unit (100). The Y-axis linear moving module (602) is used to drive the first base (203) to reciprocate along the Y-axis relative to the sample bottle conveying unit (100). The Z-axis linear moving module (603) is used to drive the first base (203) to be raised and lowered relative to the sample bottle conveying unit (100) along the Z-axis. Any two of the X-axis, Y-axis and Z-axis are perpendicular to each other.

4. The automatic sample dispensing device for connecting to a grain sample storage facility according to claim 3, characterized in that: The sample bottle conveying unit (100) is a linear conveying unit whose conveying direction can be switched by controlling the forward and reverse rotation of the motor output shaft; when the conveying direction of the sample bottle conveying unit (100) is in the first direction, the sample bottle conveying unit (100) is used to convey the sample bottle (400) from the bottle entry station to the temporary storage station; when the conveying direction of the sample bottle conveying unit (100) is in the second direction, the sample bottle conveying unit (100) is used to convey the sample bottle (400) from the temporary storage station to the bottle exit station; the sample bottle conveying unit (100) is equipped with a stop block (101) at the temporary storage station; the conveying direction of the sample bottle conveying unit (100) is set along the X-axis, and the X-axis... The linear motion module (601) includes an X-axis slide rail fixedly mounted on both sides of the sample bottle conveying unit (100), and an X-axis sliding base slidably mounted on the X-axis slide rail. The Y-axis linear motion module (602) includes a Y-axis slide rail fixedly mounted on the X-axis sliding base, and a Y-axis sliding base slidably mounted on the Y-axis slide rail. The Z-axis linear motion module (603) includes a Z-axis slide rail fixedly mounted on the Y-axis sliding base, and a first base (203) slidably mounted on the Z-axis slide rail.

5. The automatic sample dispensing device for connecting to a grain sample storage facility according to claim 3, characterized in that: The bottle cap clamping mechanism (201) is mounted on the second base (204) via the bottle cap rotating mechanism, and the lifting mechanism (202) is connected between the first base (203) and the second base (204).

6. The automatic sample dispensing device for connecting to a grain sample storage facility according to claim 1, characterized in that: The sample bottle fixing mechanism (300) includes a fixing base (301) driven to rotate by the sample bottle rotating mechanism (700). The fixing base (301) has a support plate (302) suitable for supporting and positioning the bottom end face of the sample bottle (400). Two grippers (303) arranged opposite to each other are installed on the fixing base (301). The two grippers (303) can move closer to each other and further away from each other. The two grippers (303) are used to hold and fix the middle position of the sample bottle (400).

7. The automatic sample dispensing device for connecting to a grain sample storage facility according to claim 1, characterized in that: The bottom of the material collection bin (500) has a collection hopper (501), and the bottom of the collection hopper (501) is connected to the discharge channel (503) via a screw conveyor (502). The screw conveyor (502) is used to transport the sample in the collection hopper (501) to the discharge channel (503) for discharge.

8. The automatic sample dispensing device for docking with a grain sample storage facility according to claim 7, characterized in that: The system includes a control system. A material level sensor (504) is installed on the upper part of the inner cavity of the material collection hopper (500). The material level sensor (504) and the screw conveyor (502) are both electrically connected to the control system.

9. The automatic sample dispensing device for docking with a grain sample storage facility according to any one of claims 1 to 7, characterized in that: The sample bottle conveying unit (100) includes a control system and a visual recognition device (800) for identifying the number and location of sample bottles (400) in the area between the bottle entry station and the temporary storage station. The sample bottle conveying unit (100), the capping unit (200), the sample bottle fixing mechanism (300), the moving mechanism (600), the sample bottle rotating mechanism (700) and the visual recognition device (800) are all electrically connected to the control system. The sample bottle conveying unit (100) is suitable for conveying a bottle tray (102) for accommodating multiple sample bottles (400).

10. The automatic sample dispensing device for docking with a grain sample storage facility according to claim 9, characterized in that: The sample bottle conveying unit (100) is equipped with a sensor switch (801) for identifying the placement of the bottle tray (102). The sensor switch (801) is electrically connected to the control system.

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