Culture medium filling device

Abstract

The invention discloses a culture medium filling device, and relates to the technical field of filling machines. The device comprises a bottom frame, one end of the bottom frame is connected with a conveying mechanism used for conveying storage tanks, and the other end of the bottom frame is connected with a bottle cap screening disc used for conveying plug caps; the rotating bearing disc comprises a rotating disc rotationally installed on the bottom frame, and a plurality of vertical grooves used for bearing the storage tanks are formed in the rotating disc in a circumferential array mode; and the gland assembly comprises an installation frame fixedly connected to the bottom frame, one side of the installation frame is fixedly connected with a supporting frame, and an air cylinder barrel is fixedly connected into the supporting frame. The storage tank can be automatically conveyed to the rotating bearing disc through the conveying mechanism, then the feeding assembly automatically injects materials, the bottle cap screening disc and the cap pressing assembly are matched to achieve automatic cap buckling operation, human intervention is not needed in the whole process, the automation degree is increased, time and labor are saved, meanwhile, the situation of bacterial contamination caused by personnel operation is avoided, and the production efficiency is improved. And the safety of the device is improved.

Description

Technical Field

[0001] This application relates to the technical field of filling machines, and particularly to a culture medium filling device. Background Art

[0002] A culture medium is a nutrient matrix composed of a combination of different nutrients for supplying the growth and reproduction of microorganisms, plants or animals (or tissues). It usually contains several major substances such as carbohydrates, nitrogen-containing substances, inorganic salts (including trace elements), vitamins and water.

[0003] After the production of the culture medium, a filling machine is needed to fill it into a storage tank for transportation. However, most of the existing filling machines adopt a monomeric structure, which can only extract the culture medium raw materials for stirring, and then manually take the storage tank for quantitative filling. Subsequently, it is also necessary to manually fasten the sealing cap. The degree of automation is low, time-consuming and laborious, and the artificial contact with the packaging process is prone to bacterial contamination and the safety is not good.

[0004] The patent with the patent authorization announcement number CN110844142B discloses a culture medium quantitative filling machine, the structure of which includes moving wheels, a base, a table board, a control console, a stirring barrel, a stirrer, a quantitative discharging device, a discharging pipe, a valve, a pneumatic device, an adjusting pipe. The moving wheels are installed at the bottom of the base, the table board is arranged above the base, the control console is arranged on the table board, the stirring barrel is arranged inside the base, the stirrer is installed inside the stirring barrel, the stirring barrel is communicated with the quantitative discharging device, the quantitative discharging device is communicated with the discharging pipe, the discharging pipe is vertically communicated with the top of the adjusting pipe, the pneumatic device is installed at the top of the adjusting pipe, the pneumatic device is connected with the valve, and the valve is installed at the tail of the discharging pipe.

[0005] The above application still has problems of low automation degree, manual intervention in processing and poor safety.

[0006] Therefore, the present invention proposes a culture medium filling device. Summary of the Invention

[0007] The purpose of this application is to provide a culture medium filling device to solve the problems in the above background art.

[0008] The present application specifically adopts the following technical solutions to achieve the above purpose: A culture medium filling device, comprising: A chassis, one end of the chassis is connected with a conveying mechanism for conveying a storage tank, and the other end of the chassis is connected with a bottle cap screening plate for conveying and plugging caps; A rotating receiving plate, including a turntable rotatably installed on the chassis, and a plurality of vertical grooves for receiving storage tanks are constructed in a circumferential array on the turntable; The capping assembly comprises a mounting frame fixedly connected to the base frame, one side of the mounting frame is fixedly connected to the support frame, a cylinder is fixedly connected inside the support frame, a piston rod is slidably installed inside the cylinder and passes through the bottom of the cylinder, a pressing block is constructed at the bottom of the piston rod and is located directly above one of the vertical slots, an opening and closing clamping cover member is installed at the bottom of the support frame and is located between the pressing block and the vertical slot, and the opening and closing clamping cover member is connected to the bottle cap screening plate; A material feeding assembly comprises a material storage barrel fixedly connected to the other side of the mounting frame, a pressure plate is slidably mounted in the material storage barrel, a negative pressure material extraction pipe is mounted at the bottom of the pressure plate, one side of the negative pressure material extraction pipe is connected to a material injection pipe penetrating the pressure plate through a one-way valve, and a loading nozzle is fixedly connected to the mounting frame, which is located just above another vertical slot and is connected to the material injection pipe; The driving member is arranged on the mounting frame and is used for synchronously driving the rotation of the turntable gap and the movement of the piston rod.

[0009] Furthermore, it includes two transverse frames, a connecting plate is installed between the two transverse frames, a rotating shaft 1 is rotatably installed at one end of the two transverse frames, a sliding block is slidably installed in the transverse frame along its length direction, a rotating shaft 2 is rotatably installed on the sliding block, a crawler track is sleeved between the two rotating shafts 1 and between the two rotating shafts 2, a movable strut located on one side of the connecting plate is connected between the two sliding blocks, and a fixed strut located on the other side of the connecting plate is connected between the two transverse frames.

[0010] Furthermore, the bottle cap screening plate includes a support frame fixedly connected to one end of the base frame, a conical frame is fixed on the support frame, a material lifting machine obliquely passing through the conical frame is installed in the support frame, and an arc-shaped feeding frame wrapped around the bottom of the material lifting machine is installed at the bottom of the conical frame.

[0011] Furthermore, the material-feeding elevator includes an inclined frame fixedly connected to the support frame, and rotating rods are rotatably installed at the upper and lower ends of the inclined frame, a conveyor belt is sleeved between the two rotating rods, and a plurality of material-containing inclined plates are arrayed along the length direction of the conveyor belt, an auxiliary shaft is rotatably installed in the middle of the inclined frame, and the auxiliary shaft is rotatably connected to the rotating rod through a pulley, one end of the auxiliary shaft is fixedly connected to a material-feeding rod that flips toward the arc-shaped feeding frame, and a material unloading guide rail is connected to one side of the top of the inclined frame, and the other end of the material unloading guide rail is fixedly connected to the conical frame and the end is arranged toward the opening and closing clamping cover.

[0012] Furthermore, the opening and closing clamping cover comprises a positioning rod fixedly connected in the supporting frame, and two relatively arranged L-shaped clamping frames are rotatably sleeved on the positioning rod, a torsion spring sleeved on the positioning rod is connected between the two L-shaped clamping frames, and an arc-shaped receiving groove with an opening facing the unloading guide rail is constructed between the bottoms of the L-shaped clamping frames, and a shifting member for driving the two L-shaped clamping frames away from each other is installed between the piston rod and the supporting frame.

[0013] Further, an arc-shaped groove is formed between the tops of the two L-shaped clamping frames. The dividing member includes a vertical rod slidably installed in the support frame. A conical block for abutting against the arc-shaped groove is formed on the vertical rod, and the top of the vertical rod is fixedly connected to the piston rod.

[0014] Further, a feeding pipe is formed on the pressing plate. A sealing cover is threadedly connected inside the feeding pipe, and a one-way air valve is installed on the sealing cover.

[0015] Further, the negative pressure pumping pipe includes an outer frame connected to the bottom of the pressing plate. A sealing circular plate is slidably installed inside the outer frame. A convex column is formed at the bottom of the sealing circular plate. A connecting pipe communicating with the top of the cylinder barrel is formed on the pressing plate. A feeding hole for the convex column to slidably penetrate through is formed at the bottom of the outer frame. The injection pipe is communicated with the side of the outer frame and is located between the sealing circular plate and the feeding hole.

[0016] Further, the driving member includes a sheave rotatably installed in the chassis. A round pin wheel meshing with the sheave is rotatably installed in the chassis. The round pin wheel is coaxially connected to the turntable. A driving motor is fixedly connected to the bottom of the chassis. The driving motor is connected to the sheave through a gear transmission. A pressure cylinder with one end communicated with the connecting pipe is installed on the mounting frame. A lifting plunger rod is slidably installed at the bottom of the pressure cylinder. A transmission member is arranged between the lifting plunger rod and the sheave.

[0017] Further, the transmission member includes a connecting rod hinged to the bottom of the sheave through an eccentric shaft. The other end of the connecting rod is hinged to a moving block horizontally slidably installed on the chassis. A transmission rod is vertically and rotatably hinged to the moving block. The other end of the transmission rod is hinged to the bottom of the lifting plunger rod.

[0018] The beneficial effects of the present application are as follows: 1. By providing a conveying mechanism and a bottle cap screening disc on the chassis, the present application can automatically convey storage tanks and plug caps to the rotating receiving disc and the capping assembly. The driving member can make the turntable rotate intermittently to sequentially receive the conveyed storage tanks, and the opening and closing cap clamping member in the capping assembly can also sequentially receive the plug caps, and the piston rod in the cylinder barrel moves up and down to realize the sealing operation of the storage tank. The automation is carried out without manual intervention, which saves time and effort and also avoids the occurrence of bacterial contamination, increasing the safety of the device.

[0019] 2. The present application slidably arranges a pressing plate in the storage barrel and sets the negative pressure pumping pipe at the bottom of the pressing plate. When the negative pressure pumping pipe continuously extracts the culture medium, the pressing plate can descend accordingly, so as to maintain the pressure balance in the storage barrel without supplementing external air to maintain the pressure, further reducing the probability of the culture medium being contaminated by external bacteria and increasing the safety. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structural diagram of this application; Figure 2 It is a partial three-dimensional structural diagram of this application; Figure 3 It is a three-dimensional structural diagram of the conveying mechanism of the present application; Figure 4 This is a three-dimensional structural diagram of the bottle cap screening plate of the present application; Figure 5 This application Figure 4 Half-section of the three-dimensional structure; Figure 6 This is a half-section diagram of the three-dimensional structure of the gland assembly of the present application; Figure 7 This is a three-dimensional structural diagram of the opening and closing clamp cover of the present application; Figure 8 It is a three-dimensional structural diagram of the driving component of this application; Figure 9 It is a half-section diagram of the three-dimensional structure of the feeding assembly of the present application; Reference numerals: 1, chassis; 2, conveying mechanism; 201, horizontal frame; 202, connecting plate; 203, rotating shaft 1; 204, sliding block; 205, rotating shaft 2; 206, crawler; 207, moving support rod; 208, fixed support rod; 3, bottle cap screening plate; 301, support frame; 302, conical frame; 303, material lifting machine; 3031, inclined frame; 3032, rotating rod; 3033, bottle cap screening plate; 3034, bottle cap screening plate; 3035, bottle cap screening plate; 3036, bottle cap screening plate; 3037, bottle cap screening plate; 3038, bottle cap screening plate; 3039, bottle cap screening plate; 310, bottle cap screening plate; 311, bottle cap screening plate; 312, bottle cap screening plate; 313, bottle cap screening plate; 314, bottle cap screening plate; 315, bottle cap screening plate; 316, bottle cap screening plate; 317, bottle cap screening plate; 318, bottle cap screening plate; 319, bottle cap screening plate; 320, bottle cap screening plate; 321, bottle cap screening plate; 322, bottle cap screening plate; 323, bottle cap screening plate; 324, bottle cap screening plate; 325, bottle cap screening plate; 326, bottle cap screening plate; 327, bottle cap screening plate; 328, bottle cap screening plate; 329, bottle cap screening plate; 330, bottle cap screening plate; 331, bottle cap screening plate; 332, bottle cap screening plate; 333, bottle cap screening plate; 334, bottle cap screening plate; 335, bottle cap screening plate; 336, bottle cap screening plate; 337, bottle cap screening plate; 338, bottle cap screening plate; 339 033, conveyor belt; 3034, material holding inclined plate; 3035, auxiliary shaft; 3036, material removal rod; 3037, material unloading guide rail; 304, arc-shaped feeding frame; 4, rotating receiving plate; 401, turntable; 402, vertical slot; 5, cover assembly; 501, mounting frame; 502, support frame; 503, cylinder barrel; 504, piston rod; 505, pressure block; 6, opening and closing cover clamp; 6 01, positioning rod; 602, L-shaped clamp frame; 6021, arc groove; 603, torsion spring; 604, arc receiving groove; 7, feeding assembly; 701, storage barrel; 702, pressure plate; 7021, feeding pipe; 7022, sealing cover; 7023, one-way air valve; 703, negative pressure extraction pipe; 7031, outer frame; 7032, sealing circular plate; 7033, convex column; 7034, Connecting pipe; 7035, feed hole; 704, injection pipe; 705, loading nozzle; 8, driving member; 801, groove wheel; 802, round pin wheel; 803, driving motor; 804, pressure cylinder; 805, lifting plunger rod; 806, transmission member; 8061, transmission rod; 8062, connecting rod; 8063, moving block; 9, dialing member; 901, vertical rod; 902, conical block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0022] like Figures 1-6 As shown, a culture medium filling device proposed in one embodiment of the present application includes: A bottom frame 1, one end of the bottom frame 1 is connected to a conveying mechanism 2 for conveying storage tanks, and the other end of the bottom frame 1 is connected to a bottle cap screening plate 3 for conveying plug caps. The conveying mechanism 2 is mainly used for automatically conveying storage tanks, and the bottle cap screening plate 3 is used for automatically conveying plug caps, and both are conveyed toward the bottom frame 1; The rotating receiving plate 4 includes a rotating plate 401 rotatably mounted on the base frame 1, and a plurality of vertical slots 402 for receiving storage tanks are arranged in a circumferential array on the rotating plate 401. It should be noted that the overall structure of the rotating plate 401 adopts a disc structure, and a carrier frame is arranged on the rotating plate 401. The vertical slots 402 are arranged in a circumferential array on the carrier frame and the openings are arranged outward along the center of the circle. When the glass bottles on the conveying mechanism 2 are conveyed to the rotating plate 401, they will be pushed to one of the vertical slots 402, and then the next vertical slot 402 will be aligned with the conveying mechanism 2 by the rotation of the rotating plate 401 to form an automatic feeding mechanism, without the need for manual handling of glass bottles, thus saving manpower; The capping assembly 5 comprises a mounting frame 501 fixedly connected to the base frame 1, one side of the mounting frame 501 is fixedly connected to the support frame 502, a cylinder barrel 503 is fixedly connected inside the support frame 502, a piston rod 504 is slidably installed inside the cylinder barrel 503 and passes through the bottom thereof, a pressing block 505 is constructed at the bottom of the piston rod 504 and is located just above one of the vertical slots 402, an opening and closing clamping cover member 6 is installed at the bottom of the support frame 502 and is located between the pressing block 505 and the vertical slot 402, and the opening and closing clamping cover member 6 is connected to the bottle cap screening plate 3, wherein the support frame 502 It is connected with the outlet of the bottle cap screening plate 3. When the plug cap on the bottle cap screening plate 3 is transported to the outlet, it will automatically fall into the opening and closing clamping cover 6 on the support frame 502. The plug cap is positioned by using the opening and closing clamping cover 6. At this time, the glass bottle on the turntable 401 is under the plug cap. The piston rod 504 can be pushed down by the cylinder barrel 503, so that the plug cap can be pressed into the storage tank by the pressing block 505 to complete the sealing work. When the piston rod 504 moves up, the next plug cap will automatically fall into the opening and closing clamping cover 6, and the automatic operation is realized by repeating the cycle. The feeding assembly 7 includes a storage barrel 701 fixedly connected to the other side of the mounting frame 501. A pressing plate 702 is slidably installed in the storage barrel 701. A negative pressure suction pipe 703 is installed at the bottom of the pressing plate 702. One side of the negative pressure suction pipe 703 is connected to a feeding pipe 704 passing through the pressing plate 702 through a one-way valve. A loading nozzle 705 fixedly connected to the mounting frame 501 and located directly above another vertical groove 402 and communicating with the feeding pipe 704. Among them, the negative pressure suction pipe 703 uses the negative pressure principle to suck the culture medium liquid in the storage barrel 701, and then injects it into a storage tank adjacent to the storage tank under the plug cover through the feeding pipe 704 and the loading nozzle 705. When the feeding operation is completed, the storage tank can be timely transferred to directly below the plug cover for sealing operation by the rotation of the turntable 401, reducing the risk of external bacteria entering and increasing safety; The driving member 8 is arranged on the mounting frame 501 and is used to synchronously drive the intermittent rotation of the turntable 401 and the movement of the piston rod 504. The driving member 8 is used to synchronously control the operation of the turntable 401 and the piston rod 504, so as to ensure the synchronization rate of the device and reduce the generation of errors; The overall device can automatically transport storage tanks and plug covers to the rotating receiving tray 4 and the capping assembly 5 by arranging a conveying mechanism 2 and a bottle cap screening tray 3 on the chassis 1. The driving member 8 can make the turntable 4 rotate intermittently in sequence to receive the transported storage tanks, and the opening and closing capping member 6 in the capping assembly 5 can also receive the plug covers in sequence, and the piston rod 504 in the cylinder barrel 503 moves up and down to realize the sealing operation of the storage tank. The automation is carried out without manual intervention, saving time and effort while also avoiding the occurrence of bacterial contamination, increasing the safety of the device. And the pressing plate 702 slidably arranged in the storage barrel 701 can descend along with the negative pressure suction pipe 703 sucking the culture medium, so as to maintain the pressure balance in the storage barrel 701 without supplementing external air to maintain the pressure, further reducing the probability of the culture medium being contaminated by external bacteria and increasing safety.

[0023] Such as Figure 3As shown, in some embodiments, the conveying mechanism 2 includes two cross frames 201. A connecting plate 202 is installed between the two cross frames 201. One end of each of the two cross frames 201 is rotatably installed with a first rotating shaft 203. A sliding block 204 is slidably installed in the cross frame 201 along its length direction. A second rotating shaft 205 is rotatably installed on the sliding block 204. A crawler 206 is sleeved between the two first rotating shafts 203 and between the two second rotating shafts 205. A moving support rod 207 located on one side of the connecting plate 202 is connected between the two sliding blocks 204. A fixed support rod 208 located on the other side of the connecting plate 202 is connected between the two cross frames 201. It should be noted that by slidably arranging the second rotating shaft 205 in the cross frame 201 through the sliding block 204, the distance between the first rotating shaft 203 and the second rotating shaft 205 can be adjusted, so as to adapt to the conveying of storage tanks of different sizes and increase flexibility. The driving of the sliding block 204 can be divided into two methods. One is manual adjustment. The sliding block 204 is tightly slidably installed in the cross frame 201 and is relatively positioned by friction without external force. When the distance between the first rotating shaft 203 and the second rotating shaft 205 needs to be adjusted, only need to manually push the sliding block 204 to move. The other can be to install an electric push rod connected to the sliding block 204 in the cross frame 201 to automatically adjust the position of the sliding block 204 by electricity. And the outer surface of the crawler 206 is configured with protrusions to facilitate better pushing of the storage tank, so that it can move along the paths on the moving support rod 207 and the fixed support rod 208, and then smoothly enter the turntable 401.

[0024] As Figures 4-5 shown, in some embodiments, the bottle cap screening disc 3 includes a support frame 301 fixedly connected to one end of the chassis 1. A conical frame 302 is fixed on the support frame 301. The setting of the conical frame 302 facilitates the collection of plug caps. A feeding and lifting machine 303 that obliquely penetrates the conical frame 302 is installed in the support frame 301. An arc-shaped feeding frame 304 wrapped around the bottom of the feeding and lifting machine 303 is installed at the bottom inside the conical frame 302. It should be noted that the feeding and lifting machine 303 can simultaneously dial the scattered plug caps in the conical frame 302 into the arc-shaped feeding frame 304 and gradually lift them upward for separation, so as to separate the plug caps for conveying and ensure one-to-one correspondence with the storage tank.

[0025] As Figure 5As shown, in some embodiments, the feeding elevator 303 includes an inclined frame 3031 fixedly connected inside the support frame 301. Rotating rods 3032 are rotatably installed at both the upper and lower ends of the inclined frame 3031. A conveyor belt 3033 is sleeved between the two rotating rods 3032. A plurality of material-containing inclined plates 3034 are arranged in an array along the length direction of the conveyor belt 3033. An auxiliary shaft 3035 is rotatably installed in the middle of the inclined frame 3031. The auxiliary shaft 3035 is rotationally connected to the rotating rod 3032 through a pulley. One end of the auxiliary shaft 3035 is fixedly connected to a feeding rod 3036 that flips towards the arc-shaped feeding frame 304. One side of the top of the inclined frame 3031 is communicated with a blanking guide rail 3037. The other end of the blanking guide rail 3037 is fixedly connected to the conical frame 302 and the end faces the opening and closing lid member 6. When the feeding elevator 303 operates, the two rotating rods 3032 can be driven to rotate by a motor, and at the same time, the auxiliary shaft 3035 is driven to rotate synchronously by belt pulley transmission. The conveyor belt 3033 on the two rotating rods 3032 can lift the lower plug covers to the upper side through the material-containing inclined plates 3034 until they slide into the blanking guide rail 3037, thereby completing the screening operation of the plug covers. It should be noted that the material-containing inclined plates 3034 are inclined downward towards the blanking guide rail 3037, and the shape of the plug cover is a columnar block. When the plug cover is lifted by the material-containing inclined plate 3034, it will automatically slide down to the lower side due to gravity until it reaches the opening of the blanking guide rail 3037 and then automatically slides in. The blanking guide rail 3037 is a frame plate structure, which can limit the shape of the sliding plug cover to prevent it from flipping, ensuring that the plug cover falling into the opening and closing lid member 6 is in a vertical state, facilitating it to be pressed into the glass bottle. Automatic conveying saves more labor and improves work efficiency.

[0026] As Figures 6-7As shown, in some embodiments, the opening and closing clamp member 6 includes a positioning rod 601 fixedly connected inside the support frame 502. Two oppositely arranged L-shaped clamp frames 602 are rotatably sleeved on the positioning rod 601. A torsion spring 603 sleeved on the positioning rod 601 is connected between the two L-shaped clamp frames 602. An arc-shaped receiving groove 604 with an opening facing downward towards the blanking guide rail 3037 is formed between the bottoms of the L-shaped clamp frames 602. A dividing member 9 for driving the two L-shaped clamp frames 602 to move away from each other is installed between the piston rod 504 and the support frame 502. It should be noted that when the two L-shaped clamp frames 602 are not driven by the dividing member 9, they will approach each other to a fitting state through the elastic force of the torsion spring 603. At this time, there is an opening between the two ends of the bottom section of the L-shaped clamp frame 602, but it is smaller than the diameter of the plug cover to prevent the plug cover from entering. When a sealing operation needs to be performed, a plug cover has already been received in the arc-shaped receiving groove 604. At this time, the piston rod 504 moves downward, and the dividing member 9 will synchronously drive the two L-shaped clamp frames 602 to move away from each other, thereby opening the arc-shaped receiving groove 604. The plug cover located in the arc-shaped receiving groove 604 will fall into the opening of the storage tank. When the piston rod 504 continues to press down, the plug cover will be pressed into the storage tank to achieve an automatic sealing operation. During this period, the piston rod 504 always blocks the next plug cover from entering the arc-shaped receiving groove 604. When the piston rod 504 moves upward, the arc-shaped receiving groove 604 will be gradually opened to allow the next plug cover to enter. At the same time, the dividing member 9 disengages, and the torsion spring 603 drives the two L-shaped clamp frames 602 to approach each other, thereby clamping and limiting the plug cover to facilitate the operation of the next sealing operation.

[0027] As Figure 6 shown, in some embodiments, an arc-shaped groove 6021 is formed between the tops of the two L-shaped clamp frames 602. The dividing member 9 includes a vertical rod 901 slidably installed inside the support frame 502. A conical block 902 for abutting against the arc-shaped groove 6021 is formed on the vertical rod 901. The top of the vertical rod 901 is fixedly connected to the piston rod 504. It should be noted that the vertical rod 901 includes a straight rod and a connecting piece, and is fixedly sleeved with the lower end of the piston rod 504 through the connecting piece, and the two are arranged in parallel. By using the conical block 902 to abut against the inclined surface of the arc-shaped groove 6021, the two L-shaped clamp frames 602 are pushed apart for mechanical transmission cooperation, which is safer and reduces the occurrence of failures. And the conical block 902 always moves synchronously with the piston rod 504 to ensure that the plug covers can enter the arc-shaped receiving groove 604 one by one.

[0028] As Figure 9As shown, in some embodiments, a feeding pipe 7021 is formed on the pressure plate 702. A sealing cover 7022 is threadedly connected inside the feeding pipe 7021, and a one-way air valve 7023 is installed on the sealing cover 7022. The feeding pipe 7021 can not only communicate with an external device by opening the sealing cover 7022 to perform a medium supplement operation for the storage bucket 701, but also use the one-way air valve 7023 on the sealing cover 7022 to control the outflow of internal gas, so that the pressure plate 702 always fits on the liquid surface in the storage bucket 701. Furthermore, the negative pressure suction pipe 703 can always be immersed in the liquid for suction operation, ensuring the smooth operation of the device.

[0029] As Figure 9 shown, in some embodiments, the negative pressure suction pipe 703 includes an outer frame 7031 connected to the bottom of the pressure plate 702. A sealing circular plate 7032 is slidably installed inside the outer frame 7031. A convex column 7033 is formed at the bottom of the sealing circular plate 7032. A connecting pipe 7034 communicating with the top of the cylinder barrel 503 is formed on the pressure plate 702. An inlet hole 7035 for the convex column 7033 to slide through is formed at the bottom of the outer frame 7031. The injection pipe 704 is connected to the side of the outer frame 7031 and is located between the sealing circular plate 7032 and the inlet hole 7035. It should be noted that the convex column 7033 is in a state of passing through the inlet hole 7035 in the initial state, and at this time the inlet hole 7035 is sealed. The up and down movement of the sealing circular plate 7032 can be used to drive the convex column 7033 to move upward. At this time, a negative pressure chamber will be formed between the sealing circular plate 7032 and the inner bottom of the outer frame 7031 until the convex column 7033 disengages from the inlet hole 7035, and the negative pressure is released to quickly draw the medium into the negative pressure chamber. Then the sealing circular plate 7032 moves downward, and the convex column 7033 first blocks the inlet hole 7035, so that the sealing circular plate 7032 can squeeze the medium in the negative pressure chamber through the one-way valve into the injection pipe 704 to achieve the injection operation. Compared with the traditional pump suction, this structure uses the structure to always quantitatively suck the medium, ensuring the injection accuracy.

[0030] As Figure 1 、 Figure 8 and Figure 9As shown, in some embodiments, the driving member 8 includes a grooved pulley 801 rotatably mounted in the chassis 1. A round pin wheel 802 meshing with the grooved pulley 801 is rotatably mounted in the chassis 1. The round pin wheel 802 is coaxially connected to the turntable 401. A driving motor 803 is fixedly connected to the bottom of the chassis 1. The driving motor 803 and the grooved pulley 801 are connected by gear transmission. A pressure cylinder 804 with one end communicating with the connecting pipe 7034 is mounted on the mounting frame 501. A lifting plunger rod 805 is slidably mounted at the bottom of the pressure cylinder 804. A transmission member 806 is provided between the lifting plunger rod 805 and the grooved pulley 801. It should be noted that the grooved pulley 801 and the round pin wheel 802 are existing intermittent transmission mechanisms. The grooved pulley 801 is mainly rotated by 90 degrees when the round pin wheel 802 rotates one week, so as to realize the intermittent rotation of the turntable 401. At the same time, when the round pin wheel 802 rotates one week, the lifting plunger rod 805 will be driven by the transmission member 806 to move up and down for one cycle. Furthermore, the up and down movement of the sealing circular plate 7032 in the outer frame 7031 and the up and down movement of the piston rod 504 in the cylinder barrel 503 are driven by the air pressure change in the pressure cylinder 804. The three operate synchronously, which can ensure the smooth operation of the device, avoid the failure of the culture medium canning caused by misalignment, and increase safety.

[0031] As shown in Figure 1 , Figure 8 and Figure 9 As shown, in some embodiments, the transmission member 806 includes a connecting rod 8062 hinged to the bottom of the grooved pulley 801 through an eccentric shaft. The other end of the connecting rod 8062 is hinged to a moving block 8063 horizontally slidably mounted on the chassis 1. A transmission rod 8061 is vertically and rotatably hinged to the moving block 8063. The other end of the transmission rod 8061 is hinged to the bottom of the lifting plunger rod 805. Among them, the grooved pulley 801, the connecting rod 8062 and the moving block 8063 can form a crank-slider structure, so as to drive the lower end of the transmission rod 8061 to swing horizontally back and forth. During the swinging process, the lifting plunger rod 805 will be pushed to move up and down, so as to make the piston rod 504 and the sealing circular plate 7032 lift and lower synchronously, ensure the synchronous operation of the device, avoid the occurrence of misalignment, and reduce the error rate.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A culture medium filling device, characterized in that: include: A base frame (1), one end of the base frame (1) being connected to a conveying mechanism (2) for conveying storage tanks, and the other end of the base frame (1) being connected to a bottle cap screening plate (3) for conveying stopper caps; A rotating receiving plate (4) comprises a rotating plate (401) rotatably mounted on a base frame (1), wherein the rotating plate (401) is provided with a plurality of vertical slots (402) arranged in a circumferential array for receiving storage tanks; The capping assembly (5) comprises a mounting frame (501) fixedly connected to the base frame (1), one side of the mounting frame (501) being fixedly connected to the support frame (502), a cylinder barrel (503) being fixedly connected inside the support frame (502), a piston rod (504) being slidably installed inside the cylinder barrel (503) and penetrating the bottom thereof, a pressing block (505) being located directly above one of the vertical slots (402) being constructed at the bottom of the piston rod (504), an opening and closing clamping cover member (6) being installed at the bottom of the support frame (502) and being located between the pressing block (505) and the vertical slot (402), and the opening and closing clamping cover member (6) being connected to the bottle cap screening plate (3); A material supply assembly (7) comprises a material storage barrel (701) fixedly connected to the other side of the mounting frame (501), a pressure plate (702) being slidably mounted in the material storage barrel (701), a negative pressure material extraction pipe (703) being mounted at the bottom of the pressure plate (702), one side of the negative pressure material extraction pipe (703) being connected to a material injection pipe (704) penetrating the pressure plate (702) via a one-way valve, and a loading nozzle (705) being located directly above another vertical slot (402) and connected to the material injection pipe (704) being fixedly connected to the mounting frame (501); A driving member (8) is disposed on the mounting frame (501) and is used to synchronously drive the rotation of the rotating disk (401) and the movement of the piston rod (504); The conveying mechanism (2) comprises two transverse frames (201), a connecting plate (202) is installed between the two transverse frames (201), a rotating shaft (203) is rotatably installed at one end of each of the two transverse frames (201), a sliding block (204) is slidably installed in the transverse frame (201) along its length direction, a rotating shaft (205) is rotatably installed on the sliding block (204), a crawler (206) is sleeved between the two rotating shafts (203) and between the two rotating shafts (205), a movable support rod (207) located on one side of the connecting plate (202) is connected between the two sliding blocks (204), and a fixed support rod (208) located on the other side of the connecting plate (202) is connected between the two transverse frames (201); The bottle cap screening plate (3) comprises a support frame (301) fixedly connected to one end of a base frame (1), a conical frame (302) being fixed to the support frame (301), a material-dispensing elevator (303) obliquely penetrating the conical frame (302) being installed in the support frame (301), and an arc-shaped material-feeding frame (304) wrapped around the bottom of the material-dispensing elevator (303) being installed at the bottom of the conical frame (302); The material lifting machine (303) comprises an inclined frame (3031) fixedly connected to the support frame (301), and the upper and lower ends of the inclined frame (3031) are rotatably mounted with rotating rods (3032), a conveyor belt (3033) is sleeved between the two rotating rods (3032), and the conveyor belt (3033) is arrayed with a plurality of material-containing inclined plates (3034) along its length direction, and an auxiliary shaft (3034) is rotatably mounted in the middle of the inclined frame (3031). 035), the auxiliary shaft (3035) is rotatably connected to the rotating rod (3032) via a pulley, one end of the auxiliary shaft (3035) is fixedly connected to a material removal rod (3036) that flips toward the arc-shaped feeding frame (304), one side of the top of the inclined frame (3031) is connected to a material discharge guide rail (3037), and the other end of the material discharge guide rail (3037) is fixedly connected to the conical frame (302) and the end is arranged toward the opening and closing clamping cover (6).

2. A culture medium filling device according to claim 1, characterized in that: The opening and closing clamping cover member (6) comprises a positioning rod (601) fixedly connected to the support frame (502); two L-shaped clamping frames (602) arranged opposite to each other are rotatably sleeved on the positioning rod (601); a torsion spring (603) sleeved on the positioning rod (601) is connected between the two L-shaped clamping frames (602); an arc-shaped receiving groove (604) with an opening facing the unloading guide rail (3037) is constructed between the bottoms of the L-shaped clamping frames (602); and a shifting member (9) for driving the two L-shaped clamping frames (602) to move away from each other is installed between the piston rod (504) and the support frame (502).

3. A culture medium filling device according to claim 2, characterized in that: An arc groove (6021) is constructed between the tops of the two L-shaped clamp frames (602), and the shifting member (9) comprises a vertical rod (901) slidably mounted in the support frame (502), and a conical block (902) is constructed on the vertical rod (901) for abutting against the arc groove (6021), and the top of the vertical rod (901) is fixedly connected to the piston rod (504).

4. A culture medium filling device according to claim 1, characterized in that: A feed feeding pipe (7021) is constructed on the pressure plate (702), the feed feeding pipe (7021) is internally threadedly connected to a sealing cover (7022), and a one-way air valve (7023) is installed on the sealing cover (7022).

5. A culture medium filling device according to claim 1, characterized in that: The negative pressure extraction pipe (703) comprises an outer frame (7031) connected to the bottom of the pressure plate (702), a sealing circular plate (7032) is slidably mounted in the outer frame (7031), a convex column (7033) is constructed at the bottom of the sealing circular plate (7032), a connecting pipe (7034) connected to the top of the cylinder barrel (503) is constructed on the pressure plate (702), a feed hole (7035) for the convex column (7033) to slide through is constructed at the bottom of the outer frame (7031), and the injection pipe (704) is connected to the side of the outer frame (7031) and is located between the sealing circular plate (7032) and the feed hole (7035).

6. A culture medium filling device according to claim 5, characterized in that: The driving member (8) comprises a grooved wheel (801) rotatably mounted in a base frame (1); a round pin wheel (802) meshing with the grooved wheel (801) is rotatably mounted in the base frame (1); the round pin wheel (802) is coaxially connected to the rotating disk (401); a driving motor (803) is fixedly connected to the bottom of the base frame (1); the driving motor (803) and the grooved wheel (801) are connected via a gear transmission; a pressure cylinder (804) having one end connected to a connecting pipe (7034) is mounted on the mounting frame (501); a lifting plunger rod (805) is slidably mounted on the bottom of the pressure cylinder (804); a transmission member (806) is provided between the lifting plunger rod (805) and the grooved wheel (801).

7. A culture medium filling device according to claim 6, characterized in that: The transmission member (806) comprises a connecting rod (8062) hinged to the bottom of the groove wheel (801) via an eccentric shaft, the other end of the connecting rod (8062) being hinged to a moving block (8063) horizontally slidably mounted on the base frame (1), the moving block (8063) being hinged to a transmission rod (8061) vertically flip-hinged, the other end of the transmission rod (8061) being hinged to the bottom of the lifting plunger rod (805).

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