Product collection device and method of controlling the same

Abstract

The application discloses a product collecting device and a control method thereof, and relates to the technical field of thin layer chromatography. The product collecting device comprises a base, a first driving module, a bottom plate, a second driving module and a collecting module. The base has a first direction, a second direction and a third direction. The first driving module is arranged on the base, and a driving part of the first driving module can move linearly along the first direction relative to the base. The bottom plate is connected with the driving part of the first driving module, and the bottom plate is used for placing a silica gel plate. The second driving module is arranged on the base, and a driving part of the second driving module can move in a plane where the second direction and the third direction are located. The collecting module is connected with the driving part of the second driving module, and the collecting module comprises a scraping assembly and a suction assembly. The scraping assembly is used for scraping the product from the silica gel plate, and the suction assembly is used for collecting the powder of the product. The product collecting device provided by the application can realize the automation of preparing thin layer chromatography product recovery, and can reduce dust flying.

Description

Technical Field

[0001] This invention relates to the field of thin-layer chromatography technology, and in particular to a product collection device and its control method. Background Technology

[0002] Preparative thin-layer chromatography (PTLC) is the most commonly used purification method in organic chemical synthesis, which can rapidly separate multiple components in a mixture of reaction systems.

[0003] Currently, this purification process still requires manual operation, which is time-consuming and labor-intensive, greatly limiting the efficiency of separation and purification. In addition, when scraping the powder off the silica gel plate, the powder diffuses into the air. If inhaled over a long period of time, it will irritate the respiratory tract, causing respiratory discomfort and even pneumoconiosis. If the powder accidentally gets into the eyes, it will also irritate the eyes, causing symptoms such as dry eye or conjunctivitis. Summary of the Invention

[0004] The main objective of this invention is to propose a product collection device and its control method, which aims to automate the recovery of products prepared by thin-layer chromatography, reduce dust dispersion, and protect laboratory personnel.

[0005] To achieve the above objectives, the present invention proposes a product collection device for collecting products in thin-layer chromatography. The product collection device includes a base, a first driving module, a base plate, a second driving module, and a collection module. The base has a first direction, a second direction, and a third direction. The first driving module is disposed on the base, and its driving part can move linearly relative to the base along the first direction. The base plate is connected to the driving part of the first driving module and is used to place a silica gel plate. The second driving module is disposed on the base, and its driving part can move relative to the base in the plane containing the second direction and the third direction. The collection module is connected to the driving part of the second driving module and includes a scraping component and a suction component. The scraping component is used to scrape the product from the silica gel plate, and the suction component is used to collect the product powder.

[0006] In one embodiment, the scraping assembly includes a milling cutter and a rotary motor. The rotary motor is connected to the drive unit of the second drive module. One end of the milling cutter is connected to the rotating shaft of the rotary motor, and the other end of the milling cutter is used to scrape the silicone plate.

[0007] In one embodiment, the suction assembly includes a nozzle, a pipeline, a pump body, and a collection section. The nozzle is connected to the outer wall of the rotating motor, and both ends of the nozzle are open and connected. One end of the nozzle faces the other end of the milling cutter. The collection section is located on the base and has a collection cavity. The other end of the nozzle communicates with the collection cavity through the pipeline. The pump body is located on the base and communicates with the pipeline or the collection cavity.

[0008] In one embodiment, one end of the suction nozzle has a flat opening.

[0009] In one embodiment, the collection module further includes a liquid injection assembly disposed on the base and communicating with the collection chamber for delivering a solution into the collection chamber.

[0010] In one embodiment, the collecting part includes a funnel part and a liquid flow tube that are connected together. The funnel part has the collecting cavity, and a filter element is provided at the connection between the funnel part and the liquid flow tube.

[0011] In one embodiment, the product collection device further includes a housing with a receiving cavity. The base, the first drive module, the bottom plate, the second drive module, and the collection module are all disposed within the receiving cavity, and the front wall of the receiving cavity is made of a transparent material.

[0012] In one embodiment, the product collection device further includes an ultraviolet (UV) component and a camera component. The UV component is disposed on the base and irradiates the bottom plate, while the camera component is disposed on the top of the receiving cavity and captures images of the bottom plate.

[0013] In one embodiment, the product collection device further includes a control component disposed on the outer surface of the housing and electrically or wirelessly connected to the first drive module, the second drive module, and the collection module.

[0014] The present invention also proposes a control method for use in the product collection device as described in any of the preceding claims, the control method comprising the following steps:

[0015] The first drive module is controlled to move the base plate and the silicone plate to the corresponding positions.

[0016] The first drive module, the second drive module, and the collection module are controlled to move, scrape, and collect the product on the silicone plate.

[0017] The technical solution of this invention employs a first driving module to drive a base plate, causing a silica gel plate on the base plate to move along a first direction, and a second driving module to drive a collection module, enabling the collection module to move relative to the silica gel plate in a second and third direction. The collection module includes a scraping component and a suction component. Through the combined action of the first and second driving modules, the scraping component and the suction component move together relative to the silica gel plate at any position in three-dimensional space. The scraping component scrapes the product off the silica gel plate, automating product collection and greatly improving the efficiency of separation and purification in organic chemical synthesis. The suction component collects the scraped product in a timely manner, preventing product powder from scattering and affecting the health of laboratory personnel. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an embodiment of the product collection device provided by the present invention;

[0020] Figure 2 A schematic diagram of another embodiment of the product collection device provided by the present invention, wherein the outer casing is removed;

[0021] Figure 3 A bottom view of yet another embodiment of the product collection device provided by the present invention;

[0022] Figure 4 A rear view of yet another embodiment of the product collection device provided by the present invention;

[0023] Figure 5 This is a flowchart illustrating an embodiment of the control method provided by the present invention.

[0024] Explanation of icon numbers:

[0025] 100. Product collection device; 1. Base; 2. First drive module; 3. Base plate; 4. Second drive module; 5. Collection module; 51. Scraping assembly; 511. Milling cutter; 512. Rotary motor; 52. Suction assembly; 521. Suction nozzle; 522. Pipeline; 523. Pump body; 524. Collection section; 5241. Funnel section; 5242. Liquid flow pipe; 5243. Sampling bottle; 6. Outer shell; 7. Ultraviolet component; 8. Camera component; 9. Control component; 200. Silicone plate.

[0026] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0030] Preparative thin-layer chromatography (PTLC) is the most commonly used purification method in organic chemical synthesis, which can rapidly separate multiple components in a mixture of reaction systems.

[0031] Currently, this purification process still requires manual operation, which is time-consuming and labor-intensive, greatly limiting the efficiency of separation and purification. In addition, when scraping the powder off the silica gel plate, the powder diffuses into the air. If inhaled over a long period of time, it will irritate the respiratory tract, causing respiratory discomfort and even pneumoconiosis. If the powder accidentally gets into the eyes, it will also irritate the eyes, causing symptoms such as dry eye or conjunctivitis.

[0032] This invention proposes a product collection device and its control method, aiming to automate the recovery of products prepared by thin-layer chromatography, reduce dust dispersion, and protect laboratory personnel.

[0033] Please see Figure 2 and Figure 3 In one embodiment of the present invention, the product collection device 100 is used for product collection in thin-layer chromatography. The product collection device 100 includes a base 1, a first driving module 2, a base plate 3, a second driving module 4, and a collection module 5. The base 1 has a first direction, a second direction, and a third direction. The first driving module 2 is disposed on the base 1, and the driving part of the first driving module 2 can move linearly relative to the base 1 along the first direction. The base plate 3 is connected to the driving part of the first driving module 2 and is used to place a silica gel plate 200. The second driving module 4 is disposed on the base 1, and the driving part of the second driving module 4 can move relative to the base 1 in the planes of the second direction and the third direction. The collection module 5 is connected to the driving part of the second driving module 4 and includes a scraping component 51 and a suction component 52. The scraping component 51 is used to scrape the product from the silica gel plate 200, and the suction component 52 is used to collect the product powder.

[0034] In this embodiment, the base 1 serves as the foundation of the entire product collection device 100, supporting other functional modules. It can be made of metal, such as aluminum profiles, for stability. The base 1 can be a combination of a base and a crossbeam. The two ends of the crossbeam are connected to the base via two vertical beams. The second drive module 4 can be mounted on the crossbeam, and the first drive module 2 can be mounted on the base. The two drive modules are independently configured, enabling arbitrary movement within three-dimensional space. The collection module 5 includes a scraping component 51 and a suction component 52. The scraping component 51 can be a combination of a milling cutter 511 and a rotary motor 512. The suction component 52 collects the scraped powder. Since the scraped powder particles are small, the suction component 52 can use a vacuum pump or a vacuum cleaner's core motor to provide negative pressure for suction. For product storage, gas needs to pass through smoothly while leaving behind solid powder. A vacuum generator or a cyclone dust collector can be used to temporarily store the scraped powder; no further limitations are specified here.

[0035] The first driving module 2 can be a stepper motor or a linear motor. The first driving module 2 is mounted on the base 1, and a base plate 3 is connected to the driving part of the first driving module 2. The base plate 3 is connected to the driving part by screws. The first driving module 2 drives the base plate 3 to reciprocate in a first direction, thereby causing the silicone plate 200 to reciprocate in the first direction, so that the scraping component 51 and the suction component 52 are aligned with the product strips on the silicone plate 200, scraping and promptly suctioning the scraped powder. The second driving module 4 can be a combination of two stepper motors or two linear motors. One stepper motor or linear motor is mounted on the driving part of the other stepper motor or linear motor. Through the combination of the two motors, the driving part of one stepper motor can move two-dimensionally in a plane. The collection module 5 is mounted on the driving part of one stepper motor or linear motor, thereby enabling the collection module 5 to move in a vertical plane, so that the scraping component 51 abuts against the silicone plate 200 in a third direction, and drives the scraping component 51 and the suction component 52 to scrape and suction the powder along the spectral band extension direction on the silicone plate 200.

[0036] The technical solution of this invention employs a first driving module 2 to drive a base plate 3, causing the silica gel plate 200 on the base plate 3 to move along a first direction. A second driving module 4 drives a collection module 5, enabling the collection module 5 to move relative to the silica gel plate 200 in a second and third direction. The collection module 5 includes a scraping component 51 and a suction component 52. Through the combined action of the first driving module 2 and the second driving module 4, the scraping component 51 and the suction component 52 move together relative to the silica gel plate 200 at any position in three-dimensional space. The scraping component 51 scrapes the product off the silica gel plate 200, and the suction component 52 collects the scraped product in a timely manner, thereby automating product collection and greatly improving the efficiency of separation and purification in organic chemical synthesis. Furthermore, it prevents product powder from scattering everywhere and affecting the health of laboratory personnel.

[0037] Please see Figure 2 In an embodiment of the present invention, the scraping component 51 includes a milling cutter 511 and a rotary motor 512. The rotary motor 512 is connected to the drive unit of the second drive module 4. One end of the milling cutter 511 is connected to the rotating shaft of the rotary motor 512, and the other end of the milling cutter 511 is used to scrape the silicone plate 200.

[0038] In this embodiment, a milling cutter 511 and a rotary motor 512 are used as the scraping component 51. The rotary motor 512 is mounted on the drive unit of the second drive module 4. The rotary motor 512 can move in two dimensions relative to the base in the planes of the second and third directions, thereby driving the milling cutter 511 to abut against the silicone plate 200 and move along the extension direction of the product spectrum band. At the same time, the first drive module 2 also moves synchronously, making the movement path of the milling cutter 511 zigzag, scraping the powder off the silicone plate 200, improving scraping efficiency and effect. One end of the milling cutter 511 is connected to the rotating shaft of the rotary motor 512. The rotary motor 512 drives the milling cutter 511 to move in the planes of the second and third directions, and at the same time, it rotates under the drive of the rotating shaft of the rotary motor 512 to better scrape the product off the silicone plate 200, improving scraping effect and efficiency. The end mill 511 is made of high-speed steel or cemented carbide and other metals. In order to prevent corrosion of the end mill 511, a corrosion-resistant coating can be applied to the surface of the end mill 511.

[0039] In a preferred embodiment, when using the milling cutter 511 for scraping, considering that the silicone plate 200 may be uneven, the milling cutter 511 head needs to be buffered. A buffer device is provided between the drive part of the rotating motor 512 and the second drive module 4. The buffer device includes a spring, a motor clamp and a slide rail. When the milling cutter 511 is milling, the spring buffers to prevent the milling cutter 511 head from breaking due to excessive force, and can ensure that the silicone powder is scraped off smoothly to reduce product residue.

[0040] Please see Figure 4 In an embodiment of the present invention, the suction assembly 52 includes a suction nozzle 521, a pipe 522, a pump body 523, and a collection part 524. The suction nozzle 521 is connected to the outer wall of the rotating motor 512. Both ends of the suction nozzle 521 are open and connected. One end of the suction nozzle 521 faces the other end of the milling cutter 511. The collection part 524 is disposed on the base 1 and has a collection cavity inside. The other end of the suction nozzle 521 is connected to the collection cavity through the pipe 522. The pump body 523 is disposed on the base 1 and is connected to the pipe 522 or the collection cavity.

[0041] In this embodiment, the suction assembly 52 includes a connected suction nozzle 521, a pipe 522, and a collection section 524. The collection section 524 has a collection chamber. The suction nozzle 521, the pipe 522, and the collection chamber are connected to form a suction channel for the flow of powder and gas. The pump body 523 is connected to the pipe 522 or the collection chamber to apply negative pressure to the pipe 522 or the collection chamber to realize gas flow and drive the scraped powder to be transported to the collection chamber for temporary storage. The pump body 523 can be a vacuum pump or other pump assembly that can generate negative pressure, and no further limitation is made here.

[0042] In an embodiment of the present invention, one end of the suction nozzle 521 has a flat opening.

[0043] In this embodiment, the end of the suction nozzle 521 facing the silicone plate 200 has a flat opening. This is to match the width of the elongated band on the silicone plate 200 and to increase the suction area to improve the powder absorption effect. It is understood that the specific dimensions of the flat suction nozzle 521 should be selected based on the width of the elongated band on the silicone plate 200 or the particle diameter of the scraped powder.

[0044] Please see Figure 4 In an embodiment of the present invention, the collection module 5 further includes a liquid injection component 53, which is disposed on the base 1 and communicates with the collection chamber for delivering solution to the collection chamber.

[0045] In this embodiment, a liquid injection component 53 is provided that communicates with the collection chamber. Since silica gel powder is insoluble in organic solvents, the product powder in the scraped powder can be dissolved by the liquid injection component 53 and then separated from the silica gel powder by filtration to complete the product recovery operation.

[0046] Please see again Figure 4 In an embodiment of the present invention, the collecting part 524 includes a funnel part 5241 and a liquid flow tube 5242 that are connected. The funnel part 5241 has a collecting cavity. A filter element is provided at the connection between the funnel part 5241 and the liquid flow tube 5242. A sampling bottle 5243 is provided below the liquid flow tube 5242. The sampling bottle 5243 is used to collect the solution.

[0047] In this embodiment, the collection unit 524 includes a funnel 5241 and a liquid flow pipe 5242 connected together. The funnel 5241 is used to temporarily store the collected powder, including product powder and silica gel powder. A filter element is provided at the connection between the funnel 5241 and the liquid flow pipe 5242. The liquid injection component 53 delivers organic solvent into the funnel 5241. The organic solvent dissolves the product in the funnel 5241 and flows into the sampling bottle 5243 through the liquid flow pipe 5242. The solid silica gel powder can be filtered by the filter element and will not flow into the sampling bottle 5243 with the organic solvent, thus achieving solid-liquid separation between the organic solvent and the silica gel powder. In a preferred embodiment, when it is necessary to add organic solvent to the collected silica gel powder to extract the desired product from the powder, a positive pressure pump can be used to apply positive pressure to accelerate the elution process, thereby speeding up the filtration rate of the silica gel powder and the organic solvent.

[0048] like Figure 1As shown, in an embodiment of the present invention, the product collection device 100 further includes a housing 6, which has a receiving cavity. The base 1, the first driving module 2, the bottom plate 3, the second driving module 4, and the collection module 5 are all disposed in the receiving cavity, and the front wall of the receiving cavity is made of transparent material.

[0049] In this embodiment, an outer shell 6 is provided outside the base 1, the first drive module 2, the base plate 3, the second drive module 4, and the collection module 5. This can further prevent the scraped powder from scattering and affecting the health of the experimenters. The outer shell 6 is made of hard plastic, and the front side of the outer shell 6 is made of transparent material, such as transparent glass, so that the experimenters can observe the operation of each module from this side and detect problems in a timely manner.

[0050] Please see Figure 1 and Figure 2 In an embodiment of the present invention, the product collection device 100 further includes an ultraviolet component 7 and a camera component 8. The ultraviolet component 7 is disposed on the base 1 and irradiates towards the bottom plate 3, and the camera component 8 is disposed on the top of the receiving cavity and takes pictures towards the bottom plate 3.

[0051] In this embodiment, the camera assembly 8 is located at the top of the device and can be installed on the top of the cavity of the housing 6. When the base plate 3 moves below the camera assembly 8, it takes a picture of the pre-treated silicone plate 200 on the base plate 3, facilitating subsequent image processing. The silicone plate 200 is doped with a fluorescent indicator (such as manganese-activated zinc silicate), which emits green fluorescence under the 254nm ultraviolet light assembly 7. The ultraviolet light assembly 7 is used to irradiate the silicone plate 200. The ultraviolet light assembly 7 can be an ultraviolet lamp bead, an ultraviolet lamp tube, or an ultraviolet lamp panel. The sample components on the pre-treated silicone plate 200 absorb the 254nm ultraviolet light, which blocks the emission of the fluorescent indicator, forming dark spots (such as compounds containing benzene rings) against the fluorescent background. The products on the silicone plate 200 are identified based on the alternating bright and dark spectral bands.

[0052] Please see again Figure 1 In an embodiment of the present invention, the product collection device 100 further includes a control component 9, which is disposed on the outer surface of the housing 6 and is electrically or wirelessly connected to the first drive module 2, the second drive module 4 and the collection module 5.

[0053] In this embodiment, the control component 9 is disposed on the outer surface of the housing 6, specifically on the upper left of the front of the housing 6. The control component 9 is electrically connected or wirelessly connected to the first drive module 2, the second drive module 4 and the collection module 5. The control component 9 can be a human-machine interaction display screen, which can be used to display the current status of the product collection device 100, such as the number of products processed, the moving speed of the first drive module 2 and the second drive module 4, etc. It can also directly control the working status of the first drive module 2, the second drive module 4 and the collection module 5 through the touch screen, making the overall working status and control of the product collection device 100 more intuitive.

[0054] Please see Figure 5 The present invention also proposes a control method for use in the product collection device 100 as described in any of the preceding claims, the control method comprising the following steps:

[0055] Step S1: Control the first drive module 2 to move the base plate 3 and silicone plate 200 to the corresponding positions;

[0056] Step S2: Control the first drive module 2, the second drive module 4 and the collection module 5 to move, scrape and collect the product on the silicone plate 200.

[0057] In this embodiment, the silicone plate 200 to be scraped is first installed on the base plate 3. The first drive module 2 is started, which moves the silicone plate 200 on the base plate 3 to the corresponding position, so that the spectral band on the silicone plate 200 is directly below the scraping component 51. Then, the second drive module 4 and the collection module 5 are started, so that the scraping component 51 abuts against the silicone plate 200 and moves along the extension direction of the spectral band. At the same time, the suction component 52 collects the scraped powder, thus completing the product recovery operation on the silicone plate 200.

[0058] The overall workflow of the product collection device 100 in this invention is as follows: The silicone plate 200 to be scraped is mounted on the base plate 3. The first drive module 2 is activated, moving the silicone plate 200 on the base plate 3 directly below the camera assembly 8. The ultraviolet component 7 irradiates the silicone plate 200 with ultraviolet light. The camera assembly 8 captures an image of the irradiated silicone plate 200. The captured image is then processed by the control component 9 for contour detection to identify the spectral band information on the silicone plate 200. Based on the spectral band information, a movement path is generated for the first drive module 2 and the second drive module 4, and the first drive module 2 and the second drive module 4 are controlled to move along this path. The first drive module 2 is controlled to move the silicone plate 200 in a first direction, causing the spectral bands on the silicone plate 200 to... While the milling cutter 511 is aligned with the rotating motor 512, which drives the milling cutter 511 to rotate, the second drive module 4 drives the milling cutter 511 to move in the second direction. At the same time, the first drive module 2 drives the base plate to move in the first direction, so that the milling cutter 511 can move in a Z-shape relative to the silica gel plate 200, thereby completing the scraping of powder from the silica gel plate 200. While scraping the strip, the pump body 523 provides negative pressure, and the suction component 52 sucks up the scraped silica gel powder and temporarily stores it in the collection chamber of the collection part 524. After the solid product is collected, an organic solvent is added to the funnel part 5241 of the collection part 524 for "elution". The product adsorbed on the silica gel powder is eluted and flows into the sample bottle through the liquid flow pipe 5242, finally obtaining the compound corresponding to the spectrum.

[0059] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A product collection device (100) for collecting products in preparation thin-layer chromatography, characterized in that, The product collection device (100) includes: A base (1) having a first direction, a second direction and a third direction; A first driving module (2) is disposed on the base (1), and the driving part of the first driving module (2) can move linearly relative to the base (1) along the first direction. The base plate (3) is connected to the driving part of the first driving module (2) and is used to place the silicone plate (200). A second drive module (4) is disposed on the base (1), and the drive part of the second drive module (4) is movable relative to the base (1) in the plane containing the second direction and the third direction; and Collection module (5), which is connected to the drive unit of the second drive module (4), includes a scraping component (51) and a suction component (52). The scraping component (51) is used to scrape the product from the silicone plate (200), and the suction component (52) is used to collect the powder of the product. The scraping assembly (51) includes a milling cutter (511) and a rotary motor (512). The rotary motor (512) is connected to the drive unit of the second drive module (4). One end of the milling cutter (511) is connected to the rotating shaft of the rotary motor (512), and the other end of the milling cutter (511) is used to scrape the silicone plate (200). The suction assembly (52) includes a suction nozzle (521), a pipeline (522), a pump body (523), and a collection part (524). The suction nozzle (521) is connected to the outer wall of the rotating motor (512). The suction nozzle (521) has openings at both ends and is through. One end of the suction nozzle (521) faces the other end of the milling cutter (511). The collection part (524) is located on the base (1) and has a collection cavity. The other end of the suction nozzle (521) is connected to the collection cavity through the pipeline (522). The pump body (523) is located on the base (1) and is connected to the pipeline (522) or the collection cavity.

2. The product collection device (100) as described in claim 1, characterized in that, The nozzle (521) has a flat opening at one end.

3. The product collection device (100) as described in claim 2, characterized in that, The collection module (5) further includes a liquid injection component (53), which is located on the base (1) and communicates with the collection chamber for delivering solution to the collection chamber.

4. The product collection device (100) as described in claim 3, characterized in that, The collecting part (524) includes a funnel part (5241) and a liquid flow pipe (5242) that are connected. The funnel part (5241) has the collecting cavity inside, and a filter element is provided at the connection between the funnel part (5241) and the liquid flow pipe (5242).

5. The product collection device (100) as described in any one of claims 1 to 4, characterized in that, The product collection device (100) further includes a housing (6), which has a receiving cavity. The base (1), the first driving module (2), the bottom plate (3), the second driving module (4) and the collection module (5) are all located in the receiving cavity. The front wall of the receiving cavity is made of transparent material.

6. The product collection device (100) as described in claim 5, characterized in that, The product collection device (100) further includes an ultraviolet component (7) and a camera component (8). The ultraviolet component (7) is located on the base (1) and irradiates the bottom plate (3). The camera component (8) is located on the top of the receiving cavity and takes pictures of the bottom plate (3).

7. The product collection device (100) as described in claim 6, characterized in that, The product collection device (100) further includes a control component (9), which is disposed on the outer surface of the housing (6) and is electrically or wirelessly connected to the first drive module (2), the second drive module (4) and the collection module (5).

8. A control method applied to the product collection device (100) according to any one of claims 1 to 7, characterized in that, The control method includes the following steps: Control the first drive module (2) to move the base plate (3) and the silicone plate (200) to the corresponding positions; The first drive module, the second drive module (4), and the collection module (5) are controlled to move, scrape, and collect the product on the silicone plate (200).

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