CN219212156U

CN219212156U - Automatic assembly machine for pipette tips

Info

Publication number: CN219212156U
Application number: CN202223234647.XU
Authority: CN
Inventors: 林云辉
Original assignee: Zhejiang Shoukang Biotechnology Co ltd
Current assignee: Zhejiang Shoukang Biotechnology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-06-20
Anticipated expiration: 2032-12-01

Abstract

The application discloses automatic assembly machine of pipette suction head belongs to assembly equipment technical field for provide the automatic assembly machine of pipette suction head of a structure compacter, including the conveying mechanism who sets up in the frame, fixture, snatch mechanism and last unloading structure, fixture includes a pair of disc structure with conveying mechanism linkage, disc structure is symmetrical about conveying mechanism, rotate with the frame and be connected, go up unloading structure including being located the body slide and filter core slide that snatch mechanism is with one side and being located the discharge slide that snatch mechanism opposite side, the body slide is supplied with the body of suction head on the conveying mechanism, the body reaches fixture department and is pressed from both sides tightly, snatch the body that the suction head filter core on the mechanism put into the suction head on the filter core slide, the discharge slide will be assembled suction head discharge conveying mechanism. The utility model discloses a with feeding mechanism, fixture, snatch mechanism and row material structure and arrange on a conveying mechanism for the structure of whole assembly structure is compacter.

Description

Automatic assembly machine for pipette tips

Technical Field

The application relates to the technical field of assembly equipment, in particular to an automatic assembly machine for a pipette tip.

Background

The pipette gun is a common tool in the experimental process, generally two detachable parts, namely a gun body part serving as a durable product and a suction head part serving as a consumable product, wherein in the experiment, in order to avoid unnecessary pollution caused by excessive suction to enable liquid to be stained with the connecting end of the gun body, the inside of the conventional suction head is mostly provided with a filter element structure, and the filter element is smaller due to the fact that the inside diameter of the suction head is originally smaller, so that the manual installation is low in efficiency and difficult to install in place, the installation precision of the filter element is difficult to ensure, the existing automatic machine is used for replacing manual assembly, the installation precision is improved to a great extent, but the equipment is large in size, and the occupied space is also large.

Disclosure of Invention

The purpose of this application is to provide an automatic assembly machine of liquid-transfering gun suction head that structure is compacter.

To achieve the above object, the present application provides an automatic assembly machine for pipette tips: including setting up conveying mechanism, fixture, grabbing mechanism and last unloading structure in the frame, fixture include a pair of with the disc structure of conveying mechanism linkage, disc structure with conveying mechanism symmetry, with the frame rotates to be connected, go up unloading structure including being located grabbing mechanism with body slide and filter core slide and being located grabbing mechanism opposite side's discharge slide, grabbing mechanism is located fixture's top, the body slide is supplied with the body of suction head on the conveying mechanism, and the body reaches fixture department is pressed from both sides tightly, grabbing mechanism will suction head filter core on the filter core slide is put into the body of suction head, discharge slide will assemble the suction head discharge conveying mechanism, realize automatic feeding, equipment and discharge function.

Preferably, the conveying mechanism comprises a pair of symmetrical chain belts, two ends of each chain belt respectively bypass two driving wheels, the driving wheels are rotatably connected with the rack through a wheel frame, the two chain belts clamp and support a pipe body of the suction head, and the two chain belts move together with the chain belts.

As one preference, the disc-shaped structure comprises a gear, one end fixedly connected with chuck and the other end fixedly connected with fender dish of gear, the chain belt passes through keep off between dish and the chuck with gear engagement, fender dish fixedly connected with pivot, the pivot pass through the spacing with the frame rotates to be connected, pivot, fender dish, gear and chuck are coaxial and vertical, clamp the same vertical body more easily.

Preferably, the edge of the chuck is provided with an outwards extending bearing flange, the thickness of the bearing flange is smaller than that of the chuck, the outer edge of the bearing flange is provided with uniformly distributed constraint grooves, the constraint grooves are in an inwards concave arc shape, and the radius of the constraint grooves is equal to that of the larger end of the pipe diameter of the suction head pipe body and used for tightly biting the outer side wall of the pipe body.

Preferably, the main body of the driving wheel is a roller, a separation disc is arranged in the middle of the roller, fluted discs are arranged at two ends of the roller, the chain belt bypasses the separation disc and is meshed with the fluted discs, a coaxial driving shaft is arranged at the end part of each fluted disc, and the driving shaft is driven by a driving mechanism to be in rotary connection with the wheel carrier, so that the degree of freedom of movement of the disc-shaped structure is restrained while power is transmitted to the disc-shaped structure.

Preferably, the gripping mechanism comprises a pair of symmetrical guide rails, the guide rails are fixedly connected with the rack through a vertical frame, a sliding plate is arranged between the two guide rails, the sliding plate is provided with a built-in motor and can actively move relative to the guide rails, a telescopic device is arranged on the sliding plate, the movable end of the telescopic device extends to the lower part of the sliding plate and is connected with a gripping end, the gripping mechanism is suitable for gripping a filter core plug on a filter core slideway and is clamped in a suction head tube body by the clamping mechanism, and the moving distance of the gripping mechanism can be reduced by the layout mode.

Preferably, the telescopic device is an electric telescopic rod, a supporting frame is arranged at the bottom of the frame, and a vibrating motor is arranged in the supporting frame and used for driving the frame to vibrate together, so that the falling of materials is accelerated.

Preferably, the pipe body slide way and the filter element slide way span the upper part of the chain belt, the pipe body slide way is higher than and close to the chain belt, the height and the horizontal position of the filter element slide way are both positioned between the pipe body slide way and the guide rail, and the discharge slide way is positioned between the two chain belts, so that a suction head finished product which is also positioned between the chain belts can be pushed out more conveniently.

Compared with the prior art, the beneficial effect of this application lies in:

(1) The feeding mechanism, the clamping mechanism, the grabbing mechanism and the discharging structure are arranged on the same conveying mechanism, so that the whole assembly structure is more compact in structure and smaller in volume, and the occupied space of the equipment in operation is reduced;

(2) By designing the disc-shaped clamping mechanism and keeping the clamping mechanism and the conveying mechanism synchronous, the suction head has better continuity of assembly operation, higher stability and higher assembly precision.

Drawings

FIG. 1 is a first view of the overall construction of the automated assembly machine for pipette tips;

FIG. 2 is a second view of the overall construction of the automated assembly machine for pipette tips;

FIG. 3 is a first view of the positional relationship of the transport mechanism and the clamping mechanism of the automated assembly machine for pipette tips;

FIG. 4 is an enlarged view of a portion of the automated assembly machine of pipette tips of FIG. 3;

FIG. 5 is a second view of the positional relationship between the transport mechanism and the gripping mechanism of the automated assembly machine for pipette tips;

FIG. 6 is an enlarged view of a portion of the automated assembly machine of pipette tips at C of FIG. 5;

FIG. 7 is a diagram showing the relationship between the chain belt and the clamping mechanism of the automatic assembly machine for pipette tips;

FIG. 8 is an enlarged view of a portion of the automated assembly machine of pipette tips at C of FIG. 7;

FIG. 9 is a half perspective cross-sectional view of the clamping mechanism of the automated assembly machine of pipette tips;

FIG. 10 is a diagram of the arrangement of the slide and the conveyor mechanism of the automatic assembly machine of the pipette tips on the rack;

FIG. 11 is a schematic perspective view of a gripping mechanism of an automated assembly machine for pipette tips;

fig. 12 is a schematic perspective view of a driving wheel of the automatic assembling machine of the pipette tip.

In the figure: 1. a conveying mechanism; 101. a chain belt; 102. a wheel carrier; 103. a separation plate; 104. fluted disc; 105. a driving wheel; 106. a roller; 107. a drive shaft; 2. a clamping mechanism; 201. a limiting frame; 202. a rotating shaft; 203. a baffle disc; 204. a gear; 205. a chuck; 206. a support flange; 207. a restraining groove; 3. a tube body slideway; 4. a filter element slideway; 5. a grabbing mechanism; 501. a vertical frame; 502. a guide rail; 503. a slip plate; 504. a telescopic device; 505. a grabbing end; 6. a discharge chute; 7. a frame; 8. and (5) supporting frames.

Detailed Description

The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

The automatic assembling machine for pipette tips shown in fig. 1-12 comprises a conveying mechanism 1, a clamping mechanism 2, a grabbing mechanism 5 and an unloading structure which are arranged on a frame 7, wherein the mechanisms are mutually matched to realize automatic feeding, assembling and unloading, the clamping mechanism 2 comprises a pair of disc-shaped structures which are linked with the conveying mechanism 1, the disc-shaped structures are symmetrical relative to the conveying mechanism 1 and are rotationally connected with the frame 7, the linear speed of rotation of the disc-shaped structures corresponds to the conveying speed of the conveying mechanism 1, the unloading structure comprises a pipe body slideway 3 and a filter element slideway 4 which are positioned on the same side of the grabbing mechanism 5 and a discharging slideway 6 which is positioned on the other side of the grabbing mechanism 5, and the pipe body slideway 3 and the filter element slideway 4 are used for supplying assembling components; the discharging slide way 6 is used for discharging assembled finished products, the pipe body slide way 3 and the filter element slide way 4 are spanned above the chain belts 101, the pipe body slide way 3 is higher than and is close to the chain belts 101, the pipe body can smoothly slide into the conveying mechanism 1, the height and the horizontal position of the filter element slide way 4 are both located between the pipe body slide way 3 and the guide rail 502, the pipe body located on the conveying mechanism 1 can be enabled to be embedded into the pipe body through the lower part of the filter element slide way 4, the discharging slide way 6 is located between the two chain belts 101 from top to bottom, the assembled suction head is pushed away from the position between the chain belts 101 by the inclined surface after the conveying mechanism 1 is continuously advanced, and finally the inclined discharging slide way 6 is collided.

The grabbing mechanism 5 is located above the clamping mechanism 2, the filter element can be conveniently placed in the pipe body from the upper development end, the grabbing mechanism 5 comprises a pair of symmetrical guide rails 502, the guide rails 502 are fixedly connected with the frame 7 through the vertical frames 501, a sliding plate 503 is arranged between the two guide rails 502, the sliding plate 503 is provided with a built-in motor and can actively move relative to the guide rails 502, a telescopic device 504 is arranged on the sliding plate 503, an electric telescopic rod is adopted by the telescopic device 504, the movable end of the telescopic device 504 extends to the lower portion of the sliding plate 503 to be connected with the grabbing end 505, the grabbing end 505 can move horizontally and vertically under the control of the sliding plate 503 and the telescopic device 504, the grabbing of the filter element from the filter element slideway 4 into a suction head pipe body clamped by the clamping mechanism 2 can be completed, the assembly of the filter element and the pipe body is realized, a supporting frame 8 is arranged at the bottom of the frame 7, a vibrating motor is arranged in the supporting frame 8, the assembled suction head is discharged out of the conveying mechanism 1 by the discharging slideway 6, and the assembled suction head of the liquid gun is prevented from piling.

The conveying mechanism 1 comprises a pair of symmetrical chain belts 101, a pipe body of a suction head is clamped and supported between the two chain belts 101, the pipe body can move along with the conveying mechanism 1, two ends of the chain belts 101 respectively bypass two driving wheels 105, a main body part of each driving wheel 105 is a roller 106, a separation disc 103 is arranged in the middle of each roller 106, fluted discs 104 are arranged at two ends of each roller 106, the chain belts 101 bypass the separation disc 103 and are meshed with the fluted discs 104, slipping between the chain belts 101 and the driving wheels 105 is avoided, the transmission precision is higher, the end part of each fluted disc 104 is provided with a coaxial driving shaft 107, the driving shafts 107 are driven by a driving mechanism to be in rotary connection with a wheel frame 102, a motor is generally selected by the driving mechanism, the load requirement is not high, the speed adjustment is convenient, the driving wheels 105 are in rotary connection with a frame 7 through the wheel frame 102, and the freedom of movement of the driving wheels 105 is limited.

The disc-shaped structure comprises a gear 204, one end of the gear 204 is fixedly connected with a chuck 205, the other end of the gear 204 is fixedly connected with a baffle disc 203, the chain belt 101 is meshed with the gear 204 through the gap between the baffle disc 203 and the chuck 205, so that the longer chain belt 101 can be restrained from the middle, the stability of transmission can be improved, because the meshing transmission cannot slip, the chain belt 101 can keep synchronous motion with the chuck 205, the baffle disc 203 is fixedly connected with a rotating shaft 202, the rotating shaft 202 is rotationally connected with a frame 7 through a limiting frame 201, the motion freedom degree of the whole disc-shaped structure is limited, under the normal condition, the rotating shaft 202, the baffle disc 203, the gear 204 and the chuck 205 are coaxial and vertical, so that a pipe body which is kept vertical as well can be clamped conveniently, the edge of the chuck 205 is provided with an outwards extending supporting flange 206, the thickness of the supporting flange 206 is smaller than that of the chuck 205, the outer edge of the supporting flange 206 is provided with uniformly distributed restraining grooves 207, the restraining grooves 207 are in an inwards concave arc shape, and the radius of the restraining grooves 207 is equal to the radius of the larger end of the pipe body, and used for clamping the side wall of the pipe body on the conveying mechanism 1.

The working principle of the automatic assembly machine of the pipette tip is as follows: the pipe body slide 3 supplies the pipe body of the suction head to the conveying mechanism 1, the pipe body moves forwards along with the chain belt 101 until the clamping mechanism 2 which rotates synchronously is clamped by the constraint groove 207 on the side face of the chuck 205, the grabbing mechanism 5 picks up the suction head filter core on the filter core slide 4, the pipe body of the suction head is placed in the pipe body and is released after being compressed, the grabbing end 505 is separated from the pipe body, the assembled suction head continues forwards along with the chain belt 101 and is released by the synchronously rotating chuck 205, the chuck 205 clamps the next pipe body immediately, the clamping mechanism 2 returns to the initial position to prepare to grab the next filter core, the assembled suction head moves along with the chain belt 101 until the suction head collides with the discharge slide 6, and is extruded between the chain belts 101 on the inclined face of the discharge slide 6, and as the frame 7 continuously vibrates under the driving of the supporting frame 8, the pipe body on the pipe body slide 3, the filter core on the filter core slide 4 and a finished suction head dropping onto the frame 7 can automatically move downwards, and full-automatic assembly is realized.

The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

Claims

1. An automatic assembly machine of pipette tips, characterized in that: including conveying mechanism (1), fixture (2), grabbing mechanism (5) and last unloading structure of setting on frame (7), fixture (2) include a pair of with conveying mechanism (1) linkage's disc structure, disc structure about conveying mechanism (1) symmetry, with frame (7) rotate and connect, go up unloading structure including being located grabbing mechanism (5) body slide (3) and filter core slide (4) and being located grabbing mechanism (5) opposite side's discharge slide (6), grabbing mechanism (5) are located the top of fixture (2), body slide (3) are supplied with the body of suction head on conveying mechanism (1), and the body reachs fixture (2) department is pressed from both sides tight, grabbing mechanism (5) will the suction head on filter core slide (4) is put into the body of suction head, discharge slide (6) are with assembled suction head discharge conveying mechanism (1).

2. The automated pipette tip assembly machine as defined in claim 1 wherein: the conveying mechanism (1) comprises a pair of symmetrical chain belts (101), two ends of each chain belt (101) respectively bypass two driving wheels (105), the driving wheels (105) are rotatably connected with the rack (7) through wheel frames (102), and the two chain belts (101) clamp and hold a pipe body of a suction head.

3. An automated pipette tip assembly machine as defined in claim 2 wherein: the disc-shaped structure comprises a gear (204), one end of the gear (204) is fixedly connected with a chuck (205), the other end of the gear is fixedly connected with a baffle disc (203), the chain belt (101) is meshed with the gear (204) through the baffle disc (203) and the chuck (205), the baffle disc (203) is fixedly connected with a rotating shaft (202), the rotating shaft (202) is rotatably connected with the frame (7) through a limiting frame (201), and the rotating shaft (202), the baffle disc (203), the gear (204) and the chuck (205) are coaxial and vertical.

4. An automated pipette tip assembly machine as defined in claim 3 wherein: the chuck is characterized in that an outwards extending bearing flange (206) is arranged at the edge of the chuck (205), the thickness of the bearing flange (206) is smaller than that of the chuck (205), constraint grooves (207) uniformly distributed are formed in the outer edge of the bearing flange (206), the constraint grooves (207) are inwards concave arc-shaped, and the radius of the constraint grooves (207) is equal to that of the larger end of the pipe diameter of the suction head pipe body.

5. An automated pipette tip assembly machine as defined in claim 2 wherein: the main part of drive wheel (105) is cylinder (106), have separation dish (103) in the middle of cylinder (106), both ends have fluted disc (104), chain belt (101) bypass separation dish (103) with between fluted disc (104) with mesh of fluted disc (104), the tip of fluted disc (104) has coaxial drive shaft (107), drive shaft (107) by actuating mechanism drive with wheel carrier (102) rotate and connect.

6. An automated pipette tip assembly machine as defined in claim 2 wherein: the grabbing mechanism (5) comprises a pair of symmetrical guide rails (502), the guide rails (502) are fixedly connected with the machine frame (7) through vertical frames (501), sliding plates (503) are arranged between the guide rails (502), the sliding plates (503) can actively move relative to the guide rails (502) through built-in motors, retractors (504) are arranged on the sliding plates (503), movable ends of the retractors (504) extend to the lower portions of the sliding plates (503) to be connected with grabbing ends (505), and the retractors are suitable for grabbing filter element plugs from the filter element slide ways (4) to a suction head tube body clamped by the clamping mechanism (2).

7. The automated pipette tip assembly machine as recited in claim 6 wherein: the telescopic device (504) adopts an electric telescopic rod, a supporting frame (8) is arranged at the bottom of the frame (7), and a vibrating motor is arranged in the supporting frame (8).

8. An automatic assembly machine for pipette tips as defined in any one of claims 6 to 7 wherein: the utility model discloses a filter cartridge filter, including body slide (3) and filter core slide (4), filter core slide (4) are in the top of chain belt (101), body slide (3) are higher than and press close to chain belt (101), the height and the horizontal position of filter core slide (4) all are located between body slide (3) and guide rail (502), discharge slide (6) are located two between chain belt (101).