CN116062662A - Automatic capping and cover taking equipment for microwave reaction test tube - Google Patents

Abstract

The invention discloses automatic capping and capping equipment for a microwave reaction test tube, which comprises a test tube with a boss at the top and a sealing cover with annular protrusions on the side surface, wherein the automatic capping and capping equipment comprises a frame, a multi-station indexing module is arranged on the frame and comprises an indexing fixing seat, a test tube tray and a clamping cylinder, a plurality of test tube through grooves which extend downwards and are annularly distributed and are provided with limiting pieces are arranged on the test tube tray, the depth of each test tube through groove is shorter than that of the test tube, a groove wall is not arranged on one side of each test tube through groove far away from the center of the test tube tray, a driving motor is arranged on the indexing fixing seat, a high station and a low station are arranged on the indexing fixing seat, the high station and the low station are in smooth connection, the top of the low station is separated from the bottom of the test tube through groove, the top of the high station is tangential to the bottom of the test tube through groove, the clamping cylinder is used for fixing the test tube positioned at the high station, and a capping module, a capping module and a capping module are further arranged on the frame.

Description

An automatic capping and capping equipment for microwave reaction test tubes

technical field

The invention relates to the field of automatic capping and capping, in particular to an automatic capping and capping device for microwave reaction test tubes.

Background technique

During the microwave synthesis reaction process, the sample needs to be placed in a special microwave reaction test tube, and a sealed cover needs to be added to ensure the airtightness during the reaction process. After the reaction is completed, the sample needs to be transferred to another container, so the test tube needs to be placed on However, due to the particularity of the microwave reaction process, the traditional metal sealing cover is not suitable for the sealing cover of the microwave reaction test tube, but the plastic cover is used as the sealing cover, and the plastic cover is set in a circle of convex Since it increases the difficulty of manual capping and capping, it is necessary to use automatic capping and capping equipment for capping and capping.

Existing capping and capping equipment for test tubes, such as the fully automatic test tube capping device and capping device disclosed in the Chinese patent with the publication number CN113582108A, include a capping fixing bracket, a capping drive arranged on the capping fixing bracket mechanism and the capping placement mechanism and capping positioning mechanism connected with the capping driving mechanism, driven by the capping driving mechanism, the capping and placing mechanism realizes vertical and horizontal movement on the capping fixed bracket; Driven by the capping drive mechanism, the capping positioning mechanism moves vertically on the capping fixed bracket. The capping placement mechanism includes an electromagnet capping push-pull module and a capping clamping module arranged on the capping drive mechanism The capping and clamping module includes a capping shell, a capping ejector rod that is slidably connected with the capping shell in a vertical direction, and a capping clamping block arranged on the inner side wall of the capping shell, and the capping clamping block and the capping The inner side wall of the cover shell is elastically connected, and the cover ejector rod is connected with the electromagnet cover push-pull module;: the inner side of the cover clamping block is provided with a first concave arc surface, and the bottom of the cover clamping block is provided with a first chamfer , the capped housing is provided with a capped limit slider, the capped limit slider is sleeved on the capped ejector rod, and a capped limit slider is set between the capped limit slider and the top of the inner cavity of the capped shell Spring; the capping positioning mechanism includes a capping positioning pin and a capping roller arranged on the capping driving mechanism, the capping positioning pin and the capping roller are arranged on the same horizontal plane at a certain distance, and the capping driving mechanism includes Covered vertical motor Ⅰ, covered vertical motor Ⅱ on the fixed bracket, a covered vertical sliding block and a covered positioning sliding block that are slidably connected to the fixed bracket with a cover in the vertical direction, and a covered vertical sliding block that is slidably connected in the horizontal direction Covered sliding block and the covered horizontal motor arranged on the covered sliding block, the transmission shafts of the covered vertical motor Ⅰ and the covered vertical motor Ⅱ are respectively provided with a covered gear Ⅰ and a covered gear Ⅱ, and the covered vertical motor Covered rack Ⅰ and covered rack Ⅱ are arranged vertically on the straight sliding block and the covered positioning sliding block respectively, and the covered gear Ⅰ and covered gear Ⅱ are respectively connected with covered rack Ⅰ and covered rack Ⅱ ;The transmission shaft of the capped horizontal motor is provided with a capped gear III, and the capped vertical sliding block is provided with a capped rack III horizontally, and the capped gear III is connected with the capped rack III; the electromagnet is capped and pushed and pulled The module and the capping and clamping module are arranged on the capping sliding block, and the capping positioning pin and the capping roller are arranged on the capping positioning sliding block.

However, the capping and capping equipment disclosed in the above-mentioned patents has a large volume and a complex structure, and cannot be applied to desktop environments such as laboratories, and the entire operation process is relatively cumbersome.

Contents of the invention

In order to solve the problems in the prior art, the invention discloses an automatic capping and capping equipment for microwave reaction test tubes.

An automatic capping and removing device for microwave reaction test tubes. The microwave reaction test tube includes a test tube with a boss on the top and a sealing cover with a ring-shaped protrusion on the side. When the sealing cover is installed on the test tube, the ring The protrusion is located on the end of the sealing cover away from the test tube. The automatic capping and capping equipment includes a frame, and the frame is equipped with a multi-station indexing module.

The multi-station indexing module includes an indexing holder, on which a rotatable test tube tray for placing test tubes is arranged, and the multi-station indexing module is also provided with a test tube tray for clamping the test tube Clamping cylinders for test tubes in pans,

The test tube tray is provided with several test tube slots that extend downward, are distributed in a ring shape, and are provided with stoppers. The depth of the test tube slots is shorter than the depth of the test tubes, and each of the test tube slots is far away from the center of the test tube tray. There is no groove wall on one side, and the center of the index fixing seat is provided with a drive motor for driving the test tube disk to rotate. The index fixing seat is provided with a high station and a low station, and the high station and the low station The stations are smoothly connected, the top of the low station is separated from the bottom of the test tube channel, the top of the high station is tangent to the bottom of the test tube channel, and the clamping cylinder is used to fix the test tube tray located at the high station the test tube,

A capping module for placing the sealing cap on the top of the test tube and a capping module for pressing the sealing cap on the top of the test tube are arranged on the frame and above the lower station,

The frame is also provided with a cap removing module for removing the sealing cap pressed on the top of the test tube from the top of the test tube, and the sealing cap removed by the cap removing module is located in the test tube channel above the high station, And the sealing cover on the test tube clamped by the clamping cylinder.

Specifically, when capping, the test tube is first placed in the test tube channel in the test tube tray, the sealing cover is placed in the avoidance channel of the feeding carousel of the capping module, and then the test tube tray and the feeding carousel start to rotate. When the test tube channel with the test tubes rotates to the bottom of the feeding through hole, the feeding turntable will also transport the sealing cover to the top of the feeding through hole, and the sealing cover will drop from the feeding through hole to the sealing cover of the test tube channel. Section, the test tube tray continues to rotate to the bottom of the capping module, the compression cylinder of the capping module is activated, and the sealing cap is pressed on the top of the test tube. Out of the test tube slot, then take the cover module to clamp the sealing cap or test tube, take the test tube with the sealing cap out of the test tube slot and send it to the reactor, after the reaction is completed, put the test tube with the sealing cap into the reactor Go back to the test tube channel at the high station, start the clamping cylinder, the clamping cylinder cooperates with the wall of the test tube channel to clamp the test tube, then the clamping finger clamps the sealing cover, and the clamping finger moves upward with the sealing cover After the seal caps are removed from the tubes, transfer the seal caps to a collection tank.

The feeding carousel is equipped with a number of avoidance grooves distributed in a ring shape, which can effectively speed up the speed of capping with the structure of the test tube grooves distributed in a ring on the test tube plate; the limit piece in the test tube groove is a limiter. Its main function is to prevent the test tube from falling. On the one hand, this structure can effectively prevent the test tube from falling from the test tube groove, and on the other hand, it can assist in the capping.

Preferably, the cap removal module includes grip fingers for clamping the sealing cap or test tube, a driver for driving the grip fingers, and a three-dimensional displacement module fixed on the frame, and the grip fingers and the driver are both movable and fixed On the 3D displacement module.

Specifically, since the cap removal module not only needs to perform the cap removal process, but also transports the test tube, it is necessary to fix the fingers on the three-dimensional displacement module.

Preferably, the finger is provided with a step adapted to the sealing cover, and when the finger is clamping the sealing cover, the annular protrusion of the sealing cover is located above the step.

Specifically, in the process of removing the cover, it is necessary to apply a large force to separate the sealing cover and the test tube from each other. In order to prevent the sliding between the finger and the outer wall of the sealing cover during the upward movement of the fingers, causing the sealing cover to For faults that cannot be removed, a step structure is set on the gripper finger. When the gripper grips the sealing cover, the ring-shaped protrusion is located above the step. This structure can ensure that the sealing cover does not It will slip off from the fingers, thereby ensuring the success rate of removing the cover.

Preferably, the capping module includes a fixed feed plate fixed on the frame and a rotatable feed turntable arranged on the fixed feed plate,

The feeding carousel is provided with a plurality of escape channels for placing the sealing cover, and the feeding fixed plate is provided with a feeding through hole, and the feeding carousel rotates on the feeding fixed plate with the sealing cover until the sealing cover is released from the feeding channel. drop in the hole.

Specifically, the outer edge of the feeding fixed plate is provided with ribs, the height of the ribs is the same as the thickness of the feeding turntable, and there is also a feeding gap on the ribs, when the empty avoidance channel rotates to a position suitable for the feeding gap , the new sealing cover can enter the avoidance channel from the feed gap.

Preferably, the capping module includes a fixing base fixed on the frame and a compression cylinder fixed on the fixing base.

Preferably, the frame is a double-layer structure, including a base plate and a placement plate fixed to the base plate through connecting columns, the cover removal module, capping module, and capping module are all fixed on the placement plate, and the indexing is fixed The seat is fixed on the bottom plate, the top of the test tube tray is on the same plane as the top of the placement plate, and the placement plate is also provided with a first escape hole for avoiding the test tube tray.

Preferably, the automatic capping and capping equipment further includes a test tube rack, and the placing plate is provided with a placement groove for limiting the position of the test tube rack on the placing plate.

Specifically, in the process of specific operation, usually after placing a batch of test tubes with reagents in the test tube rack, the test tubes in the test tube rack are sequentially covered, so the structure of the placement groove is fixed on the placement plate. The position of the test tube rack is convenient for the cover module to transfer the test tubes in the test tube rack to the test tube channel of the test tube tray.

Preferably, the automatic capping and capping equipment further includes a collecting tank for collecting the sealing caps, the collecting tank is placed on the bottom plate, and the placing plate is provided with a second avoidance hole adapted to the opening of the collecting tank .

Preferably, the test tube channel includes a test tube placement section away from the top of the test tube tray, and a sealing cover placement section close to the top of the test tube tray, the diameter of the sealing cover placement section is larger than the diameter of the test tube placement section, and the stopper Set in the test tube placement section.

Specifically, under this structure, the capping module only needs to drop the sealing cap on the sealing cap placement section, which ensures the success rate of capping.

Compared with the prior art, the benefits of the present invention are:

Using the structure of the multi-station indexing module combined with the capping module, capping module and capping module, the test tubes in the test tube channel above the low station are capped and capped, and the test tubes located above the high station are capped. The test tubes in the through groove are removed, and the transfer of the test tubes is realized by using the cap removal module, and the multi-station indexing module can carry multiple test tubes at the same time, and the positions of capping, pressing, and The assembly line for removing the cover; in addition, each module is integrated on the rack, and the whole device is compact in structure and small in size, which is suitable for placing it on the desktop for operation.

Description of drawings

Fig. 1 is the assembly diagram of the automatic capping and capping equipment for microwave reaction test tubes provided by the present invention;

Fig. 2 is the assembly diagram of the placement plate and the cap-taking module of the automatic capping and capping equipment for microwave reaction test tubes provided by the present invention;

Fig. 3 is a parts diagram of the fingers of the automatic capping and capping equipment for microwave reaction test tubes provided by the present invention;

Fig. 4 is the perspective view of the capping module of the automatic capping and capping equipment for microwave reaction test tubes provided by the present invention;

5 is a perspective view in another direction of the capping module of the automatic capping and capping equipment for microwave reaction test tubes provided by the present invention;

6 is a perspective view of the capping module of the automatic capping and capping equipment for microwave reaction test tubes provided by the present invention;

7 is a perspective view of the multi-station indexing module of the automatic capping and capping equipment for microwave reaction test tubes provided by the present invention;

Fig. 8 is a cross-sectional view of the multi-station indexing module of the automatic capping and capping equipment for microwave reaction test tubes provided by the present invention;

9 is a perspective view of the indexing and fixing seat of the automatic capping and capping equipment for microwave reaction test tubes provided by the present invention;

Fig. 10 is a perspective view of a test tube and a sealing cap of the automatic capping and removing device for a microwave reaction test tube provided by the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the automatic capping and removing equipment for microwave reaction test tubes, as shown in Figure 10, the microwave reaction test tube includes a test tube 10 with a boss 11 on the top and a sealing cover 20 with an annular protrusion 21 on the side , when the sealing cap 20 is installed on the test tube 10, the annular protrusion 21 is located at the end of the sealing cap 20 away from the test tube 10, and the automatic capping and capping equipment includes a frame 30, which is provided with a multi-station indexing module 40,

As shown in Figures 7-9, the multi-station indexing module 40 includes an indexing holder 41, and the indexing holder 41 is provided with a rotatable test tube tray 42 for placing the test tube 10. The multi-station indexing module 40 Also be provided with the clamping cylinder 43 that is used for clamping the test tube 10 that is positioned at the test tube tray 42,

The test tube tray 42 is provided with several test tube slots 44 that extend downwards, are distributed in a ring shape, and are provided with stoppers. One side of one side is not provided with groove wall, and the center of indexing holder 41 is provided with the drive motor that is used to drive test tube dish 42 to rotate, and indexing holder 41 is provided with high station 45 and low station 46, high station 45 and low station. Smooth connection between the stations 46, the top of the low station 46 is separated from the bottom of the test tube channel 44, the top of the high station 45 is tangent to the bottom of the test tube channel 44, and the clamping cylinder 43 is used to fix the test tube tray 42 located in the The test tube 10 of high station 45,

On the frame 30, above the lower station 46, there are a capping module 60 for placing the sealing cap 20 on the top of the test tube 10 and a capping module 70 for pressing the sealing cap 20 on the top of the test tube 10,

The frame 30 is also provided with a cover module 50 for removing the sealing cover 20 pressed against the top of the test tube 10 from the top of the test tube 10. The sealing cover 20 removed by the cover module 50 is the test tube located above the high station 45. The sealing cover 20 on the test tube 10 clamped by the clamping cylinder 43 in the through groove 44 .

As shown in Figures 2 and 3, the cover removal module 50 includes a clamp finger 51 for clamping the sealing cover 20 or test tube 10, a driver for driving the clamp finger 51, and a three-dimensional displacement module 52 fixed on the frame 30, Both the clamp finger 51 and the driving member are movably fixed on the three-dimensional displacement module 52 .

Since the cap removal module 50 not only performs the cap removal process, but also transports the test tube 10 , the fingers 51 need to be fixed on the three-dimensional displacement module 52 .

The clamping finger 51 is provided with a step 53 adapted to the sealing cover 20 , when the clamping finger 51 clamps the sealing cover 20 , the annular protrusion 21 of the sealing cover 20 is located above the step 53 .

In the process of removing the cover, it is necessary to apply a relatively large force to separate the sealing cover 20 and the test tube 10 from each other. In order to prevent the sliding between the clamping fingers 51 and the outer wall of the sealing cover 20 during the upward movement of the fingers 51 The fault that the sealing cover 20 cannot be removed, the structure of the step 53 is set on the clamping finger 51, and when the clamping finger 51 clamps the sealing cover 20, the annular protrusion 21 is located above the step 53. During the upward movement of the 51, the sealing cover 20 will not slip off from the clamping finger 51, thereby ensuring the success rate of removing the cover.

As shown in Figures 4 and 5, the capping module 60 includes a feeding fixed plate 61 fixed on the frame 30 and a rotatable feeding turntable 62 arranged on the feeding fixed plate 61,

The feeding carousel 62 is provided with several escape channels 63 for placing the sealing cover 20, the feeding fixed plate 61 is provided with a feeding through hole 64, and the feeding rotating disc 62 rotates on the feeding fixing plate 61 with the sealing cover 20 until the sealing is completed. The cap 20 falls from the feed through hole 64 .

The outer edge of the feeding fixed plate 61 is provided with a rib, the height of the rib is the same as the thickness of the feeding turntable 62, and the rib is also provided with a feeding gap, when the empty escape channel 63 is rotated to a position suitable for the feeding gap At this time, the new sealing cover 20 can enter the avoidance channel 63 from the feeding gap.

As shown in FIG. 6 , the capping module 70 includes a fixing base 71 fixed on the frame 30 and a compression cylinder 72 fixed on the fixing base 71 .

The frame 30 is a double-layer structure, including a base plate 31 and a placement plate 33 fixed to the base plate 31 through a connecting column 32. The lid removal module 50, the capping module 60, and the capping module 70 are all fixed on the placement plate 33, and the indexing is fixed. The seat 41 is fixed on the base plate 31 , the top of the test tube tray 42 is on the same plane as the top of the placement plate 33 , and the placement plate 33 is also provided with a first escape hole 35 for avoiding the test tube tray 42 .

The automatic capping and capping equipment also includes a test tube rack 81 , and the placement plate 33 is provided with a placement groove 34 for limiting the position of the test tube rack 81 on the placement plate 33 .

In the process of specific operation, usually after placing a batch of test tubes 10 with reagents in the test tube rack 81, the test tubes 10 in the test tube rack 81 are sequentially covered, so the placement groove 34 is set on the placement plate 33 The structure fixes the position of the test tube rack 81, which is convenient for the cover module 50 to transfer the test tube 10 in the test tube rack 81 to the test tube slot 44 of the test tube tray 42.

The automatic capping and capping equipment also includes a collecting tank 82 for collecting the sealing caps 20 , the collecting tank 82 is placed on the bottom plate 31 , and the placing plate 33 is provided with a second escape hole 36 adapted to the opening of the collecting tank 82 .

The test tube channel 44 includes a test tube placement section away from the top of the test tube tray 42, and a sealing cover placement section near the top of the test tube tray 42. The diameter of the sealing cover placement section is greater than the diameter of the test tube placement section, and the stopper is located at the test tube placement section.

Under this structure, the capping module 60 only needs to drop the sealing cap 20 on the sealing cap placement section, which ensures the success rate of capping.

During specific use, when adding a cover, the test tube 10 is placed in the test tube channel 44 in the test tube tray 42 earlier, the sealing cover 20 is put into the escape channel 63 of the feeding turntable 62 of the capping module 60, and then the test tube tray 42 and the feeding turntable 62 all start to rotate, and when the test tube through groove 44 that test tube 10 is housed rotates to the directly below the feeding through hole 64, the feeding turntable 62 also just in time transports the sealing cover 20 to the top of the feeding through hole 64. The cover 20 drops from the feeding through hole 64 to the sealing cover placement section of the test tube channel 44, the test tube tray 42 continues to rotate to the bottom of the capping module 70, and the compression cylinder 72 of the capping module 70 starts to compress the sealing cover 20 At the top of the test tube 10, after the compression is completed, the test tube tray 42 continues to rotate to the high station 45, and the test tube 10 at the high station 45 is pushed out of the test tube slot 44, and then the cover module 50 is taken to clamp the sealing cover 20 or the test tube 10 will be brought The test tube 10 with the sealing cover 20 is taken out from the test tube channel 44 and sent to the reactor. After the reaction is completed, the test tube 10 with the sealing cover 20 is put back into the test tube channel 44 at the high station 45 , start the clamping cylinder 43, the clamping cylinder 43 cooperates with the groove wall of the test tube channel 44 to clamp the test tube 10, then the clamping finger 51 clamps the sealing cover 20, and the clamping finger 51 moves upward with the sealing cover 20 to seal the sealing cover After 20 is removed from the test tube 10, the sealing cap 20 is transferred to the collection tank 82. In addition, the feeding carousel 62 is provided with several circularly distributed avoidance channels 63, which cooperate with the structure of the test tube channels 44 distributed annularly on the test tube tray 42, which can effectively accelerate the speed of capping; the test tube channels 44 The middle stopper is a stopper, and its main function is to prevent the test tube 10 from falling. On the one hand, this structure can effectively prevent the test tube 10 from falling from the test tube slot 44, and on the other hand, it can assist in capping.

Claims (9)

1. An automatic capping and capping device for a microwave reaction test tube comprises a test tube with a boss at the top and a sealing cover with an annular protrusion on the side surface, wherein when the sealing cover is arranged on the test tube, the annular protrusion is positioned at one end of the sealing cover far away from the test tube, the automatic capping and capping device comprises a frame, and is characterized in that a multi-station indexing module is arranged on the frame,

the multi-station indexing module comprises an indexing fixed seat, a rotatable test tube tray used for placing test tubes is arranged on the indexing fixed seat, the multi-station indexing module is also provided with a clamping cylinder used for clamping the test tubes in the test tube tray,

the test tube tray is provided with a plurality of test tube through grooves which extend downwards, are annularly distributed and are provided with limiting pieces, the depth of each test tube through groove is shorter than that of a test tube, one side of each test tube through groove far away from the center of the test tube tray is not provided with a groove wall, the center of the indexing fixing seat is provided with a driving motor for driving the test tube tray to rotate, the indexing fixing seat is provided with a high station and a low station, the high station and the low station are smoothly connected, the top of the low station is separated from the bottom of the test tube through groove, the top of the high station is tangent with the bottom of the test tube through groove, the clamping cylinder is used for fixing the test tube positioned at the high station in the test tube tray,

a capping module for placing the sealing cover at the top of the test tube and a capping module for compacting the sealing cover at the top of the test tube are arranged on the machine frame and above the lower station,

the machine frame is also provided with a cover taking module for taking down the sealing cover pressed at the top of the test tube from the top of the test tube, and the sealing cover taken down by the cover taking module is a sealing cover which is positioned in a test tube through groove above a high station and is clamped by a clamping cylinder.

2. The automatic capping and uncapping device for a microwave reaction test tube according to claim 1, wherein the uncapping module comprises a clamping finger for clamping a sealing cover or the test tube, a driving member for driving the clamping finger to act, and a three-dimensional displacement module fixed on a frame, and the clamping finger and the driving member are movably fixed on the three-dimensional displacement module.

3. The automatic capping and uncapping apparatus for a microwave reaction test tube of claim 2 wherein the clamping fingers have steps thereon for mating with the sealing cap, and the annular protrusion of the sealing cap is located above the steps when the clamping fingers clamp the sealing cap.

4. The automatic capping and uncapping apparatus for microwave reaction test tubes as claimed in claim 1, wherein the capping module comprises a feeding fixing plate fixed on the frame and a rotatable feeding turntable provided on the feeding fixing plate,

the feeding turntable is provided with a plurality of avoiding through grooves for placing the sealing covers, the feeding fixing plate is provided with a feeding through hole, and the feeding turntable rotates on the feeding fixing plate with the sealing covers until the sealing covers fall from the feeding through hole.

5. The automatic capping and uncapping apparatus for a microwave reaction cuvette of claim 1, wherein the capping module comprises a fixed seat fixed to the frame and a compacting cylinder fixed to the fixed seat.

6. The automatic capping and capping equipment for microwave reaction test tubes according to claim 1, wherein the rack is of a double-layer structure and comprises a bottom plate and a placing plate fixed with the bottom plate through a connecting column, the capping module and the capping module are all fixed on the placing plate, the indexing fixing seat is fixed on the bottom plate, the top of the test tube tray and the top of the placing plate are located on the same plane, and a first avoiding hole for avoiding the test tube tray is further formed in the placing plate.

7. The automatic capping and uncapping apparatus for a microwave reaction cuvette of claim 6, further comprising a rack, wherein the placement plate is provided with a placement groove for defining a position of the rack on the placement plate.

8. The automatic capping and uncapping apparatus for a microwave reaction cuvette of claim 6, further comprising a collecting tank for collecting the sealing caps, the collecting tank being placed on the bottom plate, the placing plate being provided with a second escape hole adapted to an opening of the collecting tank.

9. The automatic capping and capping apparatus for microwave reaction test tubes of claim 1 wherein the tube through slot includes a tube placement section distal from the top of the tube tray and a sealing cap placement section proximal to the top of the tube tray, the sealing cap placement section having a diameter greater than the tube placement section, and the stopper is disposed in the tube placement section.

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