The lid mechanism of the integrated petri dish removal and lid closing device
By designing an integrated device for removing and closing petri dishes, the lid mechanism of the petri dish is designed to achieve automated and precise alignment and locking of the lid and bottom, solving the shortcomings of existing equipment in transfer, positioning and locking, and improving production efficiency and automation level.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XITONG AUTOMATION TECH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing petri dish production equipment suffers from unstable transport, low positioning accuracy, difficulty in aligning and fastening, and low efficiency. It is particularly difficult to automate operations during high-speed continuous production, and it lacks size adaptive adjustment functions, requiring manual shape change operations.
The design incorporates a lid mechanism for an integrated petri dish removal and lid closing device, including a frame, forming module, transfer module, and closing module. It adopts a multi-station dual-disc structure, linear actuator, and limiting unit to achieve automatic adsorption, precise alignment, and closing of the lid and bottom of the petri dish.
It improves capping efficiency and automation, reduces error rate, enhances capping accuracy and product consistency, avoids cycle delays caused by manual intervention, and is suitable for high-volume, high-efficiency laboratory consumable assembly lines.
Smart Images

Figure CN224513149U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of petri dish processing technology, specifically to the lid mechanism of an integrated petri dish removal and lid closing device. Background Technology
[0002] In the laboratory and biopharmaceutical manufacturing process, petri dishes are a commonly used basic consumable, and their quality and assembly efficiency have a significant impact on subsequent use.
[0003] Currently, the production of petri dishes mostly uses injection molding to separately form the lid and bottom. After molding, they need to be automatically transferred and precisely assembled. However, existing equipment is mostly a single-function modular design, which generally suffers from technical problems such as unstable transfer methods, low positioning accuracy, difficulty in aligning the plates, and low efficiency. Especially when facing the demand for high-speed continuous production, it is difficult to achieve fully automated operation of automatic alignment, precise adsorption, and smooth closure of the injection-molded petri dishes.
[0004] In addition, existing equipment lacks size adaptive adjustment function when processing lids and bottoms of different sizes of dishes, and still needs to rely on manual changeover operations, which further reduces production efficiency. Utility Model Content
[0005] To address the aforementioned issues, a lid mechanism for an integrated petri dish removal and lid-closing device is provided. By proposing a device that can automatically adsorb and assemble the bottom and lid of the petri dish with high precision, the technical problems of low automation and low assembly accuracy of existing assembly equipment are solved.
[0006] To address the problems of existing technologies, this utility model provides a lid mechanism for an integrated petri dish removal and lid closing device, used for automatically closing the lid and bottom of the petri dish. It includes: a frame; a forming module, vertically mounted on the frame, with a feeding tray for transferring the formed lid and bottom; a transfer module, horizontally mounted on one side of the forming module, with a turntable for transferring the formed lid and bottom and a rotary driver for rotating the turntable; symmetrically arranged lid and bottom placement areas on the turntable for placing the lid and bottom transferred by the feeding tray; and a locking module, vertically mounted on one side of the transfer module, with locking units for adsorbing and locking the lid from the lid placement area to the bottom of the bottom in the bottom placement area and a driving unit for locking the locking units.
[0007] Preferably, the fastening unit includes a sliding frame and multiple adsorption parts detachably mounted on the sliding frame, as well as a suction nozzle fixedly mounted on the adsorption parts; the multiple adsorption parts are arranged in a rectangular array on the lower surface of the sliding frame; and each adsorption part also has a slot on its lower surface that is adapted to the lid.
[0008] Preferably, the drive unit includes a first linear driver capable of driving the sliding frame to slide horizontally closer to or away from the rotary table and a second linear driver capable of driving the sliding frame to slide longitudinally closer to or away from the rotary table; the second linear driver is fixedly mounted vertically at the drive end of the first linear driver; the sliding frame is fixedly mounted horizontally at the drive end of the second linear driver.
[0009] Preferably, there are two rotary tables, which are horizontally arranged opposite each other at the drive end of the rotary driver; each rotary table is also provided with a first limiting unit and a second limiting unit that can respectively limit the position of the lid and the bottom of the dish.
[0010] Preferably, the first limiting unit includes a fixed limiting part and a movable limiting part; two of each of the fixed limiting part and the movable limiting part are provided, and the two fixed limiting parts and the two movable limiting parts are arranged in a rectangular array on the turntable; the two fixed limiting parts and the two movable limiting parts enclose a limiting range that can limit the bottom and lid of the dish in four directions.
[0011] Preferably, the molding module further includes a molding machine capable of molding the dish bottom and the lid, and a robotic arm capable of driving the feeding tray to remove the molded dish bottom and lid from the molding machine.
[0012] The advantages of this utility model compared to the prior art are:
[0013] 1. This utility model achieves synchronous positioning, adsorption and transfer of dish lids through the cooperation of the transfer module and the locking module, enabling efficient one-time material handling and precise alignment of multiple dish lids, thus improving the closing efficiency and automation level.
[0014] 2. This utility model utilizes the first and second linear drivers in the drive unit to control the translation and lifting movements of the sliding frame, thereby achieving precise alignment and fastening between the lid and the bottom of the dish, reducing the error rate, and improving the lid-closing accuracy and product consistency.
[0015] 3. The rotary table of this utility model adopts a multi-station double-disc structure, which can realize continuous flow operation of capping, fastening and picking up materials, avoid the cycle delay caused by manual intervention, and realize continuous and efficient automated operation.
[0016] 4. This utility model effectively ensures the stability of the lid and bottom of the dish during the transmission, positioning and closing process through the first limiting unit, the second limiting unit and the adjustable movable limiting part, and prevents problems such as misalignment, sliding or poor closing. Attached Figure Description
[0017] Figure 1 This is a three-dimensional view of the lid mechanism of an integrated petri dish removal and lid closing device.
[0018] Figure 2 It is a three-dimensional removal module in the lid mechanism of an integrated petri dish removal and lid closing device. Figure 1 .
[0019] Figure 3 It is a three-dimensional removal module in the lid mechanism of an integrated petri dish removal and lid closing device. Figure 2 .
[0020] Figure 4 This is a side view of the removal molding module in the lid mechanism of the integrated petri dish removal and lid closing device.
[0021] Figure 5 This is a three-dimensional view of the latching module in the lid mechanism of an integrated petri dish removal and lid closing device.
[0022] Figure 6 yes Figure 5 A magnified view of part A.
[0023] Figure 7 This is a three-dimensional structural diagram of the transfer module in the lid mechanism of an integrated petri dish removal and lid closing device.
[0024] Figure 8 yes Figure 7 A magnified view of section B.
[0025] The numbers on the map are:
[0026] 1. Rack;
[0027] 2. Molding module; 21. Feeding tray; 22. Robotic arm;
[0028] 3. Transfer module; 31. Rotary table; 32. Rotary driver; 33. First limiting unit; 331. Fixed limiting part; 332. Movable limiting part; 34. Second limiting unit;
[0029] 4. Fastening module; 41. Fastening unit; 411. Sliding frame; 412. Adsorption part; 4121. Slot; 413. Nozzle; 42. Drive unit; 421. First linear actuator; 422. Second linear actuator; 423. Support frame. Detailed Implementation
[0030] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0031] See Figures 1 to 8 The diagram shows a lid mechanism of an integrated petri dish removal and lid-closing device for automatically closing the lid and bottom of a petri dish. It is characterized by comprising: a frame 1; a forming module 2, vertically mounted on the frame 1, the forming module 2 having a feeding tray 21 for transferring the formed lid and bottom of the petri dish; a transfer module 3, horizontally mounted on one side of the forming module 2, the transfer module 3 having a turntable 31 for transferring the formed lid and bottom of the petri dish and a rotary driver 32 for driving the turntable 31 to rotate; the turntable 31 having symmetrically arranged lid and bottom placement areas for placing the lid and bottom of the petri dish transferred by the feeding tray 21; and a locking module 4, vertically mounted on one side of the transfer module 3, the locking module 4 having a locking unit 41 for adsorbing and locking the lid in the lid placement area to the bottom of the petri dish in the bottom placement area and a driving unit 42 for driving the locking unit 41 to lock.
[0032] When it is necessary to perform a snap-fit operation on the lids and bottoms of the dishes that have been transferred via the feeding tray 21 and placed sequentially on the rotary table 31, an external power supply is first connected to drive the rotary driver 32. The rotary driver 32 drives the rotary table 31 to rotate to the first station, which is the station facing the forming module 2. At this time, the forming module 2 starts operating, and the feeding tray 21 sequentially places the formed lids and bottoms into the preset lid and bottom placement areas on the rotary table 31, ensuring that each pair of lids and bottoms is arranged correspondingly in the same rotating unit.
[0033] After placement is complete, the rotary driver 32 drives the rotary table 31 to rotate to the second station, which faces the snap-fit module 4. The snap-fit module 4 is activated under the control of the drive unit 42. First, the snap-fit unit 41 adsorbs the lid located in the lid placement area and moves it horizontally. Then, it slides along the guide rail structure towards the bottom placement area for alignment. After sliding to the target position, the drive unit 42 applies vertical downward pressure to the snap-fit unit 41, causing the adsorbed lid to precisely snap onto the corresponding bottom of the dish below, achieving synchronous and stable snap-fit between the lid and the bottom.
[0034] After the lid is closed, the rotary table 31 continues to rotate to the third station under the action of the rotary driver 32, which is the material picking position facing the feeding module. At this time, the feeding module takes out the culture dish that has completed the lid closing operation and transports it to the subsequent process or finished product collection unit, realizing a closed-loop process. The feeding module is existing technology and will not be described in detail here.
[0035] By setting up sequentially arranged forming stations, snap-fit stations, and material handling stations, the system achieves automated and precise alignment and snap-fitting of the petri dish lid and bottom, improving lid-fitting accuracy and cycle stability. Through the coordinated control of horizontal sliding adsorption and vertical pressing of snap-fit module 4, the system effectively avoids misalignment or tilting of the petri dish, significantly improving assembly yield and equipment automation level. It is suitable for high-volume, high-efficiency laboratory consumable assembly production lines.
[0036] See Figure 6 As shown: The fastening unit 41 is provided with a sliding frame 411 and a plurality of adsorption parts 412 detachably disposed on the sliding frame 411 and a suction nozzle 413 fixedly disposed on the adsorption parts 412; the plurality of adsorption parts 412 are arranged in a rectangular array on the lower surface of the sliding frame 411; and each adsorption part 412 is also provided with a slot 4121 adapted to the lid of the dish on its lower surface.
[0037] When an automatic snap-fit operation is required between the lid and the bottom of the dish transferred to the second workstation, an external power supply is first connected to drive the drive unit 42. Under the control of the drive unit 42, the sliding frame 411 moves precisely along the horizontal guide rail to directly above the dish lid placement area. Subsequently, the drive unit 42 drives the sliding frame 411 to move vertically downward, so that multiple adsorption parts 412 on the lower surface of the sliding frame 411 sequentially contact the upper surface of each dish lid. Each adsorption part 412 has a precisely opened slot 4121 at its lower end, which can form a positioning and locking engagement with the outer edges of multiple dish lids in the dish lid placement area, thereby completing the initial positioning and limiting of the dish lid.
[0038] After the snap-fit alignment is completed, the suction nozzle 413 located in the suction unit 412 is further driven to move, using negative pressure or vacuum suction to stably adsorb each dish cap from the placement area onto the bottom of the sliding frame 411. After adsorption, the sliding frame 411, under the control of the drive unit 42, moves vertically upward to detach from the dish cap placement area and slides horizontally to a position directly opposite the dish bottom placement area, achieving one-to-one alignment between the adsorbed dish cap and the dish bottom. Finally, the drive unit 42 drives the sliding frame 411 to move vertically downward again, causing the dish caps adsorbed on the suction nozzle 413 to sequentially press towards the dish bottom, thus completing the automated and precise locking process between the dish cap and the dish bottom.
[0039] The cooperation between the sliding frame 411, the adsorption part 412, and the slot 4121 significantly improves the accuracy of pick-up and positioning of the dish lid; while ensuring the accuracy of the snap-fit alignment, it reduces the risk of mis-snagging, tilting, and crushing; and realizes the synchronous, multi-station automated snap-fit operation of the culture dish lid and the dish bottom.
[0040] See Figure 5 and Figure 6As shown: The drive unit 42 is provided with a first linear driver 421 that can drive the sliding frame 411 to slide horizontally closer to or away from the rotary table 31 and a second linear driver 422 that can drive the sliding frame 411 to slide longitudinally closer to or away from the rotary table 31; the second linear driver 422 is fixedly mounted vertically at the drive end of the first linear driver 421; the sliding frame 411 is fixedly mounted horizontally at the drive end of the second linear driver 422.
[0041] The drive unit 42 further includes a support frame 423. The first linear actuator 421 is horizontally fixed to the frame 1 via the support frame 423. The first linear actuator 421 is horizontally fixed via the first support frame 423 and arranged along a horizontal sliding path between the lid placement area and the bottom placement area, driving the sliding frame 411 to reciprocate horizontally between the two workstations, thereby completing the cross-area transport operation of the lid. The second linear actuator 422 is vertically arranged and connected between the sliding frame 411 and the drive unit 42, driving the sliding frame 411 to slide vertically downwards, achieving precise lid picking and vertical lid closing operation with the bottom of the dish. Specifically, the first linear actuator 421 and the second linear actuator 422 are lead screw slides, which are existing technologies and will not be described in detail here.
[0042] See Figure 2 and Figure 3 As shown: There are two rotary disks 31, which are horizontally arranged opposite each other at the drive end of the rotary driver 32; each rotary disk 31 is also provided with a first limiting unit 33 and a second limiting unit 34 that can limit the lid and the bottom of the dish respectively.
[0043] The second limiting unit 34 and the first limiting unit 33 have the same structure.
[0044] Multiple first limiting units 33 and second limiting units 34 are respectively provided, and the multiple first limiting units 33 and second limiting units 34 are equidistantly arranged along the long side of the rotary table 31. They are used to independently limit and fix multiple dish bottoms and dish lids to ensure that they are in a stable positioning state, providing a precise reference for subsequent automatic lid closing operations. Each limiting unit adopts an adjustable mechanical stop design to adapt to the dimensional tolerance changes of different batches of culture dishes.
[0045] Furthermore, there are two or more rotary tables 31, with at least two rotary tables 31 arranged opposite each other on the rotary drive 32, corresponding to the first station (plate lid and plate bottom loading position) and the third station (finished product unloading position), respectively. When one rotary table 31 is in the first station loading plate lids and plates, the other rotary table 31 can simultaneously be in the third station removing the capped culture dishes. The two rotary tables work in tandem and alternately, enabling parallel processing of capping and unloading, thereby improving the overall cycle efficiency.
[0046] Multiple sets of limiting units are used to independently limit the lid and bottom of the petri dish at equal intervals, improving positioning accuracy and ensuring accurate lid closing. The alignment setting and alternating operation mode of the double rotary table 31 realizes continuous cycle of loading, lid closing and unloading, which greatly improves the automation level and production efficiency of the petri dish lid closing equipment.
[0047] See Figure 8 As shown: The first limiting unit 33 includes a fixed limiting part 331 and a movable limiting part 332; there are two of each of the fixed limiting part 331 and the movable limiting part 332, and the two fixed limiting parts 331 and the two movable limiting parts 332 are arranged in a rectangular array on the turntable 31; the two fixed limiting parts 331 and the two movable limiting parts 332 enclose a limiting range that can limit the bottom and lid of the dish in four directions.
[0048] The two movable limiting parts 332 are slidably mounted on the rotary table 31 and are symmetrically arranged relative to the fixed limiting part 331. They can slide horizontally to move closer to or further away from the fixed limiting part 331, thereby flexibly adjusting the width of the limiting range. When it is necessary to adapt to the bottoms of dishes with different diameters, simply unlock the locking structure of the two movable limiting parts 332 first, and then adjust the position of the movable limiting parts 332 precisely according to the actual size of the current dish bottom until a limiting space matching the outer diameter of the dish bottom is formed. Then, the locking parts are used to re-fix them, thus completing the quick limiting adjustment operation for dish bottoms of different sizes.
[0049] See Figure 1 As shown: The molding module 2 also includes a molding machine capable of molding the bottom and lid of the dish, and a robotic arm 22 capable of driving the feeding tray 21 to remove the molded bottom and lid of the dish from the molding machine.
[0050] The molding machine, the robot arm 22, and the feeding tray 21 are all existing technologies. The molding machine is used to perform injection molding on the bottom and lid of the dish. The robot arm 22 is used to drive the feeding tray 21 to remove the molded bottom and lid of the dish from the molding machine and place the removed molded bottom and lid at the first station through the feeding tray 21.
[0051] This utility model can automatically adsorb and assemble the bottom and lid of a dish with high precision and high efficiency.
[0052] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A lid box mechanism of a petri dish taking out and lid closing apparatus integrated equipment for automatically closing a dish lid and a dish bottom, characterized in that, The utility model relates to a kind of tray cover and tray bottom forming device, including: Rack; Forming module, the forming module is vertically arranged on the rack, the forming module is equipped with the feeding tray that can be transported to the tray cover and tray bottom after forming; Transport module, horizontally arranged in one side of the forming module, the transport module is equipped with the rotary table that can be transported to the tray cover and tray bottom after forming and the rotary drive that can drive the rotary table to rotate;Symmetrically equipped with the tray cover placement area and tray bottom placement area on the rotary table, the tray cover and tray bottom transported by the feeding tray can be placed; Joint module, vertically arranged in one side of the transport module, the joint module is provided with joint unit that can adsorb the tray cover at tray cover placement area to joint to the tray bottom on tray bottom placement area and drive unit that can drive the joint unit to joint.
2. The lid box mechanism of the petri dish taking out and lid closing apparatus integrated equipment according to claim 1, characterized in that, The joint unit is equipped with sliding frame and a plurality of adsorption parts detachably arranged on the sliding frame, and suction nozzle fixedly arranged on the adsorption part; A plurality of the adsorption parts are arranged in a rectangular array state on the lower surface of the sliding frame;And the lower surface of each adsorption part is also provided with a clamping groove matched with the tray cover.
3. The lid box mechanism of the petri dish taking out and lid closing apparatus integrated equipment according to claim 2, characterized in that, Drive unit is equipped with first linear driver that can drive the sliding frame to horizontally slide close to or away from rotary table and second linear driver that can drive the sliding frame to longitudinally close to and away from rotary table; The second linear driver is fixedly arranged in vertical state on the driving end of the first linear driver; The sliding frame is fixedly arranged on the driving end of the second linear driver in horizontal state.
4. The lid box mechanism of the petri dish taking out and lid closing apparatus integrated equipment according to claim 1, characterized in that, The rotary table is provided with two, two rotary tables are arranged in horizontal state on the driving end of the rotary drive relative to each other; Each rotary table is also respectively provided with first limiting unit and second limiting unit that can limit tray cover and tray bottom respectively.
5. The lid box mechanism of the petri dish taking out and lid closing apparatus integrated equipment according to claim 4, characterized in that, The first limiting unit includes fixed limiting part and movable limiting part; The fixed limiting part and movable limiting part are both provided with two, two fixed limiting parts and two movable limiting parts are arranged in a rectangular array on the rotary table;Two fixed limiting parts and two movable limiting parts form limiting interval that can limit tray bottom and tray cover in four directions.
6. The lid box mechanism of the petri dish taking out and lid closing apparatus integrated equipment according to claim 5, characterized in that, The forming module further includes forming machine that can form tray bottom and bottom cover, and manipulator that can take out formed tray bottom and tray cover from forming machine.