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CN-122006973-A - Full-automatic culture dish coating mechanism

CN122006973ACN 122006973 ACN122006973 ACN 122006973ACN-122006973-A

Abstract

The invention discloses a full-automatic culture dish coating mechanism, and relates to the technical field of laboratory automation equipment. The culture dish overturning device comprises a sterilization module, a coating module, a culture dish overturning module, a culture dish rotating module and a six-axis mechanical arm, wherein the sterilization module is used for carrying out high-temperature heating sterilization on a coating head in the coating module and detecting the temperature in the sterilization process in real time, the coating module is arranged at the tail end of the six-axis mechanical arm and comprises a rotatable coating head and is used for automatically adjusting the coating gesture or the contact pressure according to the height change of the surface of a culture medium in the coating process, the culture dish rotating module is used for bearing the culture dish and matching with the coating module to finish the coating operation, and the culture dish overturning module is used for clamping the culture dish after the coating is finished and finishing the automatic inversion operation. According to the invention, through the cooperation of multiple modules, the automatic uncovering, coating, sterilization, rotary positioning and inversion operation of the culture dish are realized, the coating consistency, experimental repeatability and system automation level are improved, and the pollution risk is reduced.

Inventors

  • ZHANG ZONGYI
  • WU YONGLU
  • QIN SILIANG

Assignees

  • 北京智科特机器人科技有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (10)

  1. 1. The full-automatic culture dish coating mechanism is characterized by comprising a sterilization module, a coating module (3), a culture dish overturning module (5), a culture dish rotating module (6) and a six-axis mechanical arm (12); The sterilization module comprises a heat effect sterilization device (1) and a temperature probe (4), wherein the heat effect sterilization device (1) is used for performing high-temperature heating sterilization on a coating head (14) in the coating module (3), and the temperature probe (4) is used for detecting the temperature in the sterilization process in real time; The coating module (3) is arranged at the tail end of the six-axis mechanical arm (12) and comprises a rotatable coating head (14) for automatically adjusting the coating gesture or the contact pressure according to the height change of the surface of the culture medium in the coating process, and a temperature sensor (25) is integrated on the coating head (14) for acquiring the temperature data of a coating plane or the coating head (14) in real time; the culture dish rotating module (6) is used for bearing the culture dishes and matching with the coating module (3) to finish coating operation, and the culture dish overturning module (5) is used for clamping the culture dishes after coating is finished and finishing automatic inversion operation.
  2. 2. A fully automated culture dish coating mechanism according to claim 1, wherein the coating module (3) is mounted at the end of the six-axis mechanical arm (12) through a connector (2), the other end of the six-axis mechanical arm (12) is mounted on a mechanical arm mounting base (10), and the mechanical arm mounting base (10) is positioned on a mechanism mounting base (27); The six-axis mechanical arm (12) can perform multi-degree-of-freedom motion in a three-dimensional space, is used for completing accurate positioning and motion control of the coating module (3), performs opening and closing operations of a culture dish cover, and simultaneously completes heating sterilization actions of the coating head (14) in cooperation with the sterilization module.
  3. 3. A full-automatic culture dish coating mechanism according to claim 2, wherein the coating module (3) further comprises a supporting member (16), a docking mechanism (17), a placement guide post (18), a temperature measurement communication main control board (19) and a coating rod (20), the supporting member (16) is connected to the connector (2) through the docking mechanism (17), the temperature measurement communication main control board (19) is mounted inside the supporting member (16) and electrically connected with the temperature sensor (25), one end of the coating rod (20) is mounted at the tail end of the supporting member (16) through a connecting shaft (15) and an adaptive spring (28), and the coating head (14) is connected to the other end of the coating rod (20).
  4. 4. A full-automatic culture dish coating mechanism according to claim 3, wherein the two sides of the tail end of the supporting piece (16) are respectively provided with a first coating head initial contact photoelectric sensor (21) and a second coating head initial contact photoelectric sensor (23), a first trigger baffle (22) is arranged at the first coating head initial contact photoelectric sensor (21), and a second trigger baffle (24) is arranged at the second coating head initial contact photoelectric sensor (23).
  5. 5. A fully automated culture dish coating mechanism according to claim 4, wherein the end of the docking mechanism (17) adjacent to the connector (2) is provided with a connection contact (26).
  6. 6. A full-automatic culture dish coating mechanism according to claim 1, wherein the culture dish rotating module (6) is mounted on a supporting base (29), the supporting base (29) is fixedly arranged on a mechanism mounting base (27), the culture dish rotating module (6) comprises a rotating motor (7), a first photoelectric sensor (8), a second photoelectric sensor (9) and a culture dish tray (39), the rotating motor (7) is connected to the supporting base (29) through a motor mounting seat (38), the culture dish tray (39) is positioned at the top end of the supporting base (29) and is connected with the output end of the rotating motor (7), and the first photoelectric sensor (8) and the second photoelectric sensor (9) are respectively mounted on two sides of the supporting base (29) and are respectively used for judging whether a culture dish and a culture dish cover plate exist or not.
  7. 7. A fully automated culture dish coating mechanism according to claim 6, wherein a tray zero metal sensor (36) and a tray zero trigger piece (37) are provided on the support base (29) at a position close to the culture dish tray (39).
  8. 8. A fully automated culture dish coating mechanism according to claim 6, wherein the culture dish turning module (5) is located at the downstream or lateral side of the coating station and comprises a culture dish clamping jaw (13), a rotating clamping jaw motor (35) and a lifting mechanism, wherein the culture dish clamping jaw (13) is connected to the output end of the rotating clamping jaw motor (35) and is located at the outer side of the culture dish tray (39), and the rotating clamping jaw motor (35) is fixedly mounted on the lifting mechanism; The culture dish clamping jaw (13) is used for clamping the culture dish, the rotary clamping jaw motor (35) is used for driving the culture dish to turn over, and the lifting mechanism is used for adjusting the height position of the culture dish.
  9. 9. A fully automated culture dish coating mechanism according to claim 8, wherein the lifting mechanism comprises a vertical drive motor (30) and a fixed plate (31), the vertical drive motor (30) is mounted on the fixed plate (31), and the fixed plate (31) is mounted on the mechanism mounting base (27).
  10. 10. A fully automated culture dish coating mechanism according to claim 9, wherein the fixing plate (31) is provided with a bottom photo sensor (32), a middle photo sensor (33) and a top photo sensor (34) in the height direction.

Description

Full-automatic culture dish coating mechanism Technical Field The invention relates to the technical field of laboratory automation equipment, in particular to a full-automatic culture dish coating mechanism. Background The culture dish coating is a key operation step in experiments such as microorganism detection, bio-pharmaceuticals, food safety monitoring, medical inspection and the like, and the operation process generally comprises a plurality of links such as cover opening of the culture dish, sterilization of a coating tool, uniform coating of a sample, resetting and inversion of the culture dish and the like. The quality of this operation directly affects the accuracy and repeatability of the experimental results. At present, the culture dish coating operation is finished manually, and the following prominent problems exist in practical application: (1) The automatic culture dish coating equipment is low in automation degree, and lacks integrated equipment, no mature automatic culture dish coating equipment exists in the current market, only a part of mechanisms capable of realizing single functions, such as automatic uncovering or rotary positioning, cannot realize continuous automatic operation from uncovering, coating and sterilization to inversion, and the whole automation level is limited. (2) The coating consistency is poor, the reliability of experimental results is affected, in the manual coating process, the factors such as the operation method, the coating pressure, the angle and the like are difficult to unify, and in addition, microscopic fluctuation exists on the surface of the culture medium, so that the contact state of a coating tool and the culture medium is unstable, uneven coating is easily caused, and the repeatability and the reliability of the experimental results are affected. (3) The sterilization process lacks quantitative monitoring and has the risk of cross contamination, the existing coating tool is sterilized by adopting modes such as fixed heating or burning of an alcohol lamp, a real-time monitoring and feedback mechanism for sterilization temperature is lacked, whether the effective sterilization temperature is reached or not is difficult to judge, and the potential risk of cross contamination in the experimental process is increased. (4) The operation flow is complex, the space utilization rate is low, and the rotation positioning, station switching and inversion operation of the culture dish often need a plurality of independent mechanisms or manual intervention, so that the volume of equipment and the complexity of a system are increased, and the operation efficiency and the experimental stability are reduced. Therefore, the existing culture dish coating operation mode has obvious defects in the aspects of automation degree, coating consistency, sterilization controllability, system integration and the like. Therefore, it is needed to provide a full-automatic culture dish coating mechanism with high structural integration level, high automation degree, high coating precision and monitorable sterilization effect. Disclosure of Invention The invention mainly aims to provide a full-automatic culture dish coating mechanism which realizes automatic uncovering, coating, sterilization, rotary positioning and inversion operation of a culture dish through multi-module cooperation, thereby improving coating consistency, experimental repeatability and system automation level, effectively reducing pollution risk and overcoming the problems in the prior art. In order to solve the technical problems, the invention adopts the following technical scheme: A full-automatic culture dish coating mechanism comprises a sterilization module, a coating module, a culture dish overturning module, a culture dish rotating module and a six-axis mechanical arm; the sterilization module comprises a thermal effect sterilization device and a temperature probe, wherein the thermal effect sterilization device is used for performing high-temperature heating sterilization on the coating head in the coating module, and the temperature probe is used for detecting the temperature in the sterilization process in real time; The coating module is arranged at the tail end of the six-axis mechanical arm and comprises a rotatable coating head, wherein the coating head is used for automatically adjusting the coating gesture or the contact pressure according to the height change of the surface of the culture medium in the coating process, and a temperature sensor is integrated on the coating head and is used for collecting the temperature data of a coating plane or the coating head in real time; The culture dish rotating module is used for bearing the culture dish and matching with the coating module to finish the coating operation, and the culture dish overturning module is used for clamping the culture dish after the coating is finished and finishing the automatic inversion operation. Further, the coating modu