Pipette tip sub-pod bagging machine

Abstract

The utility model discloses a pipette tip divides the bagging machine of hole, including frame, and the frame is erected with the buffer mechanism, and the buffer mechanism includes the sliding plate, the buffer chamber and the partition board, is equipped with the first through -hole on the sliding plate, and the bottom of every first through -hole all links with a buffer chamber, and the partition board is movably arranged in the bottom of a group of buffer chambers, and the bottom of buffer chamber has the opening, is equipped with the second through -hole on the partition board, and the partition board is through the movement to make the second through -hole and the opening opposite to be selected to close or open the opening, frame is equipped with at least one receiving station, and the receiving station includes the blanking disc, the catheter and the material bag, is equipped with the third through -hole on the blanking disc, and every third through -hole all are connected with a material bag through a catheter, when the opening and the third through -hole opposite, the partition board opens the opening, makes the pipette tip in the same buffer chamber in proper order from the third through -hole, the catheter falls into the same material bag. The scheme is through the hole and divides the guarantee and receive the pipette tip precision consistency in every material bag.

Description

Technical Field

[0001] This utility model relates to the field of dispensing machine technology, specifically to a pipette tip acupoint filling and bagging machine. Background Technology

[0002] Pipettes are frequently used in experiments for pipetting. As disposable consumables, pipette tips are used in large quantities in experiments, so they are usually packaged in batches for use in conjunction with pipettes.

[0003] Common suction head packaging devices, such as those described in CN 216068368 U, involve injection molding suction heads in batches, with each batch containing multiple suction heads (e.g., 16-cavity, 48-cavity, 64-cavity, 128-cavity), and one suction head per cavity. As consumables with small volume and high precision requirements, variations in the volume of the suction heads themselves can amplify errors in subsequent experiments. Therefore, minimizing the differences in suction heads used in each experimental group is crucial. Current batch-based packaging methods often suffer from significant dimensional tolerances in the suction heads. This is due to variations in the precision of the mold core in each injection cavity, as well as differences in cooling rates and temperatures after injection molding. These variations lead to dimensional differences between suction heads molded from all cavities within the entire batch. Packaging suction heads in the entire batch amplifies these differences, affecting the final performance. Furthermore, if differences arise between suction heads in each batch, it is necessary to compare suction heads from all cavities. For products packaged in the entire batch, accurately identifying these differences requires significant effort and cost, greatly reducing production efficiency.

[0004] On the other hand, in laboratories, to improve the cleanliness and efficiency of experimental operations, pipettes are used for automated gripping and transfer of pipette tips. However, differences in the size of the pipette tips can cause the pipette to fail to grip the tips reliably, resulting in gripping failures or tip detachment. Furthermore, the pipette grippers also wear down over time, making it difficult to quickly determine whether the problem is due to gripper wear or a mismatch in tip size. Therefore, differences in tip size further complicate the troubleshooting of pipette grippers.

[0005] Therefore, ensuring the consistency of the suction head's accuracy after repackaging is an urgent problem to be solved. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pipette tip acupoint filling and bagging machine.

[0007] The objective of this utility model is achieved through the following technical solution: A pipette tip dispensing and bagging machine includes a frame. A buffer mechanism for collecting pipette tips is mounted on the frame. The buffer mechanism includes a sliding plate, a set of buffer cavities for accommodating pipette tips, and a partition plate. The sliding plate has a set of first through holes, each corresponding to a specific injection cavity in an injection molding machine. The bottom of each first through hole is connected to one of the buffer cavities. The partition plate is movably disposed at the bottom of the set of buffer cavities. The bottom of each buffer cavity has an opening. The partition plate has a set of second through holes that match the openings. The partition plate can be moved to selectively align the second through holes with the openings. The opening is closed or opened; at least one receiving station is provided in the frame, the receiving station includes a discharge tray, a guide tube and a receiving bag, the discharge tray is provided at the top of the frame and below the partition plate, the discharge tray is provided with a third through hole matching the opening, each of the third through holes is connected to a receiving bag through a guide tube, when the opening is not directly opposite the third through hole, the partition plate closes the opening; when the opening is directly opposite the third through hole, the partition plate opens the opening, so that the suction head in the same buffer cavity falls sequentially from the third through hole and the guide tube into the same receiving bag.

[0008] Preferably, a driving cylinder is provided at the bottom of the sliding plate, and a connecting block is fixedly connected to the cylinder head of the driving cylinder. The bottom of the connecting block is fixedly connected to the partition plate, so that the driving cylinder drives the partition plate to move back and forth horizontally synchronously through the driving connecting block.

[0009] Preferably, connecting plates are respectively provided on both sides of the bottom of the sliding plate, and a second slide rail is provided at the bottom of the connecting plate. A set of connecting sliders is slidably arranged on the second slide rail. The partition plate is horizontally fixed to the bottom of the connecting sliders and slides along the second slide rail through the connecting sliders.

[0010] Preferably, the device further includes a transplanting mechanism for driving the movement of the buffer mechanism. The transplanting mechanism includes a slide rail, a drive motor, a drive pulley, a driven pulley, and a belt, all mounted on the top of the frame. Two slide rails are symmetrically mounted on both sides of the buffer mechanism. The bottom of the sliding plate is slidably mounted on the slide rail via a set of sliders. The drive motor is mounted at the end of one of the slide rails. The drive pulley is mounted on the drive end of the drive motor. The driven pulley is correspondingly mounted at the other end of the slide rail. A belt is fitted between the drive pulley and the driven pulley to allow them to rotate synchronously. One side of the top of the sliding plate is fixed to the belt via a fixing block, so that the drive motor drives the belt to rotate, thereby causing the sliding plate to slide along the slide rail.

[0011] Preferably, the rack has two identical storage stations, and the transfer mechanism drives the buffer mechanism to switch and dock with the two storage stations by reciprocating translation.

[0012] Preferably, the storage station further includes a support frame, and a set of clamps are arranged layer by layer on both sides of the support frame, each clamp detachably holding one of the receiving bags.

[0013] Preferably, the bracket is provided with a set of waist-shaped holes, and one waist-shaped hole is provided above each pair of clamps, through which the conduit passes and connects to the receiving bag.

[0014] Preferably, the bracket is further provided with support plates on both sides, and the receiving bag is placed on the support plates.

[0015] Preferably, the device further includes a sampling mechanism, which includes a sampling plate, a sampling tray, a lifting platform, and a sliding cylinder. The sampling plate is disposed on the top of the frame and located below the moving end of the buffer mechanism. The sampling plate is provided with a set of fourth through holes that match the opening. The sampling tray is provided with a set of receiving cavities that can accommodate suction heads. The bottom of each fourth through hole is connected to one of the receiving cavities. The lifting platform is provided with pins opposite to each other. The bottom of the sampling tray is detachably locked onto the pins. The sliding cylinder is vertically disposed below the sampling plate. The lifting platform is vertically fixed to the driving end of the sliding cylinder and is driven to move up and down by the sliding cylinder.

[0016] Preferably, the sampling mechanism further includes a buzzer, which emits an audible signal to indicate that sampling is complete once a predetermined number of suction heads have been received in the accommodating cavity.

[0017] The beneficial effects of this utility model are mainly reflected in: 1. This solution uses a first through hole corresponding to each injection cavity of the injection molding machine to connect with the injection-molded suction head. A movable partition plate is then used to control the opening and closing of the bottom opening of the buffer cavity. This allows the suction head to fall into the buffer cavity and then sequentially connect to the opening, the second through hole, the third through hole, and the guide tube before falling into the collection bag. In other words, suction heads molded in each injection cavity of the injection molding machine fall into the same collection bag. This allows for separate packaging of suction heads in each batch, ensuring that the suction heads in each collection bag are molded from the same injection cavity. This maximizes the elimination of precision differences between suction heads molded from different injection cavities and ensures the maximum consistency of suction head precision in each collection bag. 2. Set up multiple storage stations and use the transfer mechanism to control the buffer mechanism to switch and connect to different stations by moving, allowing time for the replacement of the receiving bags in each storage station, and maximizing production efficiency and optimizing production cycle time. 3. Set up a sampling station to collect suction head samples as needed, and eliminate the impact of sampling on the number of suction heads stored, ensuring the number of suction heads in each collection bag. Attached Figure Description

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings: Figure 1 : Schematic diagram of an embodiment of this utility model; Figure 2 : A schematic diagram of the bottom of the cache mechanism in this embodiment of the present invention; Figure 3 : A partial schematic diagram of the caching mechanism in an embodiment of this utility model; Figure 4 : A partial schematic diagram of the sampling mechanism in an embodiment of this utility model; Figure 5 : A schematic diagram of the slide cylinder and the lifting platform in the embodiment of this utility model; Figure 6 : A schematic diagram of the docking of this utility model embodiment with an injection molding machine. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0020] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0021] like Figures 1 to 6As shown, this utility model discloses a pipette tip dispensing and bagging machine, including a frame 1. A buffer mechanism for collecting pipette tips is mounted on the frame 1. The buffer mechanism includes a sliding plate 301, a set of buffer cavities 302 for accommodating pipette tips, and a partition plate 303. The sliding plate 301 has a set of first through holes 304, each corresponding to a specific injection cavity of an injection molding machine. The bottom of each first through hole 304 is connected to a buffer cavity 302. The partition plate 303 is movably disposed at the bottom of the set of buffer cavities 302. The bottom of each buffer cavity 302 has an opening. The partition plate 303 has a set of second through holes 305 that match the opening. The partition plate 303 can be moved to selectively align the second through holes 305 with the opening. The opening is aligned with the container to close or open the opening. At least one receiving station is provided within the frame 1. The receiving station includes a discharge tray 401, a guide tube 402, and a receiving bag (not shown in the figure). The discharge tray 401 is located at the top of the frame 1 and below the partition plate 303. The discharge tray 401 has a third through hole 404 that matches the opening. Each third through hole 404 is connected to a receiving bag via a guide tube 402. When the opening is not aligned with the third through hole 404, the partition plate 303 closes the opening. When the opening is aligned with the third through hole 404, the partition plate 303 opens the opening, allowing suction heads within the same buffer chamber 302 to sequentially fall from the third through hole 404 and the guide tube 402 into the same receiving bag.

[0022] The pipette tip cavity filling and bagging machine disclosed in this solution is used to interface with an injection molding machine for injection molding tips. In this solution, "cavity" is a unit of quantity, referring to the injection cavity of a single pipette tip. For example, in... Figure 6 As shown, the injection molding machine 6 has an injection mold for injection pipette tips. The injection mold of the injection molding machine 6 has 48 injection cavities, allowing 48 pipette tips to be injection molded in each batch. The molded pipette tips are then picked up by the pipette gripper 601 and transported to the top of the buffer mechanism for placement. The specific arrangement of the first through-hole 304 in this design is based on the specific arrangement of the pipette gripper 601 to ensure precise docking with the pipette gripper 601. For example, in the preferred embodiment shown, the first through-hole 304 is positioned according to the 48 cavities on the pipette gripper 601.

[0023] This solution uses a first through hole 304, corresponding one-to-one with each injection cavity of the injection molding machine, to connect the suction head after injection molding. A movable partition plate 303 controls the opening and closing of the bottom opening of the buffer cavity, allowing the suction head to fall into the buffer cavity 302 and sequentially connect to the opening, second through hole 305, third through hole 404, and guide tube 402 before falling into the collection bag. This ensures that suction heads molded in each injection cavity of the injection molding machine fall into the same collection bag, achieving cavity-specific packaging for each batch of injection-molded suction heads. This ensures that all suction heads in each collection bag are molded from the same injection cavity, minimizing precision differences between suction heads molded from different cavities and maximizing the consistency of suction head precision in each collection bag.

[0024] Specifically, a driving cylinder 310 is provided at the bottom of the sliding plate 301. A connecting block 311 is fixedly connected to the cylinder head of the driving cylinder 310. The bottom of the connecting block 311 is fixedly connected to the partition plate 303, so that the driving cylinder 310 drives the partition plate 303 to move horizontally and reciprocally in sync through the driving connecting block 311, thereby achieving the purpose of controlling the opening and closing of the opening by the movement of the partition plate 303.

[0025] To further optimize the movement of the partition plate 303, connecting plates 307 are respectively provided on both sides of the bottom of the sliding plate 301. A second slide rail 308 is provided at the bottom of the connecting plate 307. A set of connecting sliders 309 are slidably arranged on the second slide rail 308. The partition plate 303 is horizontally fixed to the bottom of the connecting sliders 309, and the movement direction of the partition plate 303 is limited by the sliding of the connecting sliders 309 along the second slide rail 308, so that the partition plate 303 moves more smoothly.

[0026] Furthermore, this solution also includes a transplanting mechanism for driving the movement of the buffer mechanism. The transplanting mechanism includes a slide rail 201 mounted on the top of the frame 1, a drive motor 202, a driving pulley 203, a driven pulley 204, and a belt 205. Two slide rails 201 are symmetrically mounted on both sides of the buffer mechanism. The bottom of the sliding plate 301 is slidably mounted on the slide rail 201 via a set of sliders 306. The drive motor 202 is located at the end of one of the slide rails 201. The driving pulley 203 is disposed on the driving end of the drive motor, and the driven pulley 204 is correspondingly disposed on the other end of the slide rail 201. A belt 205 is sleeved between the driving pulley 203 and the driven pulley 204 to make them rotate synchronously. The top side of the sliding plate 301 is fixed to the belt 205 by a fixing block 312, so that the drive motor 202 drives the sliding plate 301 to slide along the slide rail 201 by driving the belt 205 to rotate.

[0027] The frame 1 can be equipped with multiple storage stations. The transfer mechanism controls the buffer mechanism to switch between different stations by moving, allowing time for the replacement of the receiving bags in each storage station, thereby maximizing production efficiency and optimizing the production cycle.

[0028] In the preferred embodiment shown in the figure, the rack 1 is provided with two identical storage stations, and the transplanting mechanism drives the buffer mechanism to switch and dock with the two storage stations by reciprocating translation.

[0029] The storage station also includes a support 405, on both sides of which are arranged a set of clamps 406 layer by layer. Each clamp 406 detachably clamps one of the receiving bags. The top of each clamp 406 is provided with a needle-shaped elastic gripper 4061 for holding the receiving bag, using the elasticity of the gripper 4061 to hold the receiving bag. In other feasible embodiments, the clamp 406 can also be other clamping structures capable of holding the receiving bag; no limitation is made here.

[0030] Furthermore, in this design, the conduit 402 is a flexible tube with an inner diameter adapted to the suction head. The support 405 has a set of waist-shaped holes 407, one of which is located above each pair of clamps 406. The conduit 402 passes through these waist-shaped holes 407 and connects to the collection bag. The waist-shaped holes 407 serve to limit the movement of the conduit 402, facilitating connection when changing the collection bag. Support plates 408 are also arranged layer by layer on both sides of the support 405. The collection bag is placed on the support plates 408 to support it and prevent it from falling due to excessive weight during storage. The support 405 supports the collection bag, ensuring a stable connection between the collection bag and the conduit 402 without movement, guaranteeing the suction head falls smoothly into the collection bag for reliable collection.

[0031] This solution also includes a sampling mechanism, which includes a sampling plate 501, a sampling tray 502, a lifting platform 503, and a sliding cylinder 504. The sampling plate 501 is disposed on the top of the frame 1 and located below the moving end of the buffer mechanism. The sampling plate 501 is provided with a set of fourth through holes 505 that match the opening. The sampling tray 502 is provided with a set of receiving cavities 506 that can accommodate suction heads. The bottom of each fourth through hole 505 is connected to one of the receiving cavities 506. The lifting platform 503 is provided with pins 507 opposite to each other. The bottom of the sampling tray 502 is detachably locked onto the pins 507. The sliding cylinder 504 is vertically disposed below the sampling plate 501. The lifting platform 503 is vertically fixed to the driving end of the sliding cylinder 504 and is driven to move up and down by the sliding cylinder 504.

[0032] The above structure allows the slide cylinder 504 to control the lifting platform 503 to rise, causing the top of the sampling tray 502 to abut against the sampling plate 501, thus fixing the sampling tray 502. By controlling the lifting platform 503 to descend, the restriction on the sampling tray 502 is released, allowing it to be removed. The sampling tray 502 is connected and fixed to the lifting platform 503 via a quick-release structure that engages with the pin 507, greatly facilitating the assembly and disassembly of the sampling tray 502. To further facilitate the removal of the sampling tray 502, ears can be provided on both sides of the bottom of the sampling tray 502 for easy handling. The sampling method of the sampling mechanism in this solution is not unique; it can be sampling at the same time interval, sampling at different time intervals, or sampling at any time point. The specific sampling method depends on the actual needs.

[0033] The sampling mechanism also includes a buzzer 508. After a predetermined number of suction heads have been received in the accommodating cavity 506, the buzzer 508 emits an audible signal to indicate that sampling is complete, thus prompting the staff to remove the sampling tray 502. The buzzer 508's pre-programmed popping sound is existing technology and not the focus of this solution; therefore, it will not be elaborated upon here.

[0034] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0035] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementation methods or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pipette tip cellaring and bagging machine, characterized in that: The system includes a frame (1) on which a buffer mechanism for collecting suction heads is mounted. The buffer mechanism includes a sliding plate (301), a set of buffer cavities (302) for accommodating suction heads, and a partition plate (303). The sliding plate (301) is provided with a set of first through holes (304), each of which corresponds to a specific injection cavity of the injection molding machine. The bottom of each first through hole (304) is connected to a buffer cavity (302). The partition plate (303) is movably disposed at the bottom of the set of buffer cavities (302). The bottom of each buffer cavity (302) has an opening. The partition plate (303) is provided with a set of second through holes (305) that match the opening. The partition plate (303) can be moved to selectively align the second through holes (305) with the opening to close or... Open the opening; at least one receiving station is provided in the frame (1), the receiving station includes a material drop tray (401), a guide tube (402) and a receiving bag. The material drop tray (401) is located at the top of the frame (1) and below the partition plate (303). The material drop tray (401) is provided with a third through hole (404) that matches the opening. Each third through hole (404) is connected to a receiving bag through a guide tube (402). When the opening is not directly opposite the third through hole (404), the partition plate (303) closes the opening. When the opening is directly opposite the third through hole (404), the partition plate (303) opens the opening, so that the suction head in the same buffer cavity (302) falls into the same receiving bag in sequence from the third through hole (404) and the guide tube (402).

2. The pipette tip cellaring and bagging machine according to claim 1, characterized in that: A drive cylinder (310) is provided at the bottom of the sliding plate (301). A connecting block (311) is fixedly connected to the cylinder head of the drive cylinder (310). The bottom of the connecting block (311) is fixedly connected to the partition plate (303), so that the drive cylinder (310) drives the partition plate (303) to move horizontally and reciprocally in sync through the drive connecting block (311).

3. The pipette tip cellaring and bagging machine according to claim 2, characterized in that: The sliding plate (301) has connecting plates (307) on both sides of its bottom. The bottom of the connecting plate (307) has a second slide rail (308). A set of connecting sliders (309) are slidably mounted on the second slide rail (308). The partition plate (303) is horizontally fixed to the bottom of the connecting sliders (309) and slides along the second slide rail (308) via the connecting sliders (309).

4. The pipette tip cell-filling and bagging machine according to claim 3, characterized in that: It also includes a transplanting mechanism for driving the movement of the buffer mechanism. The transplanting mechanism includes a slide rail (201) disposed on the top of the frame (1), a drive motor (202), a drive pulley (203), a driven pulley (204), and a belt (205). Two slide rails (201) are symmetrically mounted on both sides of the buffer mechanism. The bottom of the sliding plate (301) is slidably mounted on the slide rail (201) by a set of sliders (306). The drive motor (202) is disposed at the end of one of the slide rails (201). The drive pulley (205) is mounted on the belt. The wheel (203) is disposed on the drive end of the drive motor, and the driven pulley (204) is disposed on the other end of the slide rail (201). A belt (205) is sleeved between the drive pulley (203) and the driven pulley (204) to make them rotate synchronously. The top side of the sliding plate (301) is fixed to the belt (205) by a fixing block (312) so that the drive motor (202) drives the belt (205) to rotate, thereby driving the sliding plate (301) to slide along the slide rail (201).

5. The pipette tip cell-filling and bagging machine according to claim 4, characterized in that: The frame (1) is provided with two identical storage stations. The transplanting mechanism drives the buffer mechanism to switch and dock with the two storage stations by reciprocating translation.

6. The pipette tip cell-filling and bagging machine according to claim 5, characterized in that: The storage station also includes a support (405), on both sides of which a set of clamps (406) are arranged layer by layer, and each clamp (406) can be detachably clamped to hold one of the collection bags.

7. The pipette tip cellaring and bagging machine according to claim 6, characterized in that: The bracket (405) is provided with a set of waist-shaped holes (407), and a waist-shaped hole (407) is provided above each pair of clamps (406). The conduit (402) passes through the waist-shaped hole (407) and is connected to the receiving bag.

8. The pipette tip cellaring and bagging machine according to claim 7, characterized in that: The support plate (408) is also provided on both sides of the bracket (405) in layers, and the receiving bag is placed on the support plate (408).

9. The pipette tip cellaring and bagging machine according to any one of claims 4-8, characterized in that: It also includes a sampling mechanism, which comprises a sampling plate (501), a sampling tray (502), a lifting platform (503), and a sliding cylinder (504). The sampling plate (501) is disposed on the top of the frame (1) and located below the moving end of the buffer mechanism. The sampling plate (501) is provided with a set of fourth through holes (505) that match the opening. The sampling tray (502) is provided with a set of receiving cavities (506) that can accommodate suction heads. The bottom of the fourth through hole (505) is connected to one of the accommodating cavities (506). A pin (507) is provided on the lifting platform (503). The bottom of the sampling tray (502) is detachably locked on the pin (507). The slide cylinder (504) is vertically arranged below the sampling plate (501). The lifting platform (503) is vertically fixed to the driving end of the slide cylinder (504) and is driven to move up and down by the slide cylinder (504).

10. The pipette tip cell-filling and bagging machine according to claim 9, characterized in that: The sampling mechanism also includes a buzzer (508). After a predetermined number of suction heads are received in the accommodating cavity (506), the buzzer (508) will sound an alarm to indicate that the sampling is complete.

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