CN217346476U

CN217346476U - Nucleic acid extraction post production mould

Info

Publication number: CN217346476U
Application number: CN202221142282.5U
Authority: CN
Inventors: 李君�; 马丽娟; 余少平
Original assignee: Kangrunjingxing Suzhou Biotechnology Co ltd
Current assignee: Kangrunjingxing Suzhou Biotechnology Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-09-02
Anticipated expiration: 2032-05-12

Abstract

The utility model relates to a nucleic acid draws post production mould, including last mould and lower mould, be equipped with injection moulding device, shedder and cooling device on last mould and the lower mould, shedder includes thimble, movable plate, removal post, fixed plate and spring, the thimble all sets up the upper surface at the movable plate with the removal post, through spring coupling between movable plate and the fixed plate, the utility model discloses in through setting up a plurality of first die cavity, second die cavity and interior module, can mould plastics to a plurality of products simultaneously, through setting up the runner, be convenient for connect a plurality of first die cavity and the mouth of moulding plastics, accomplish the production of moulding plastics of a plurality of products through a mouth of moulding plastics.

Description

Nucleic acid extraction post production mould

Technical Field

The utility model relates to the technical field of molds, in particular to a nucleic acid extraction column production mold.

Background

In general experiments such as DNA extraction, RNA extraction, plasmid extraction, PCR product purification and the like, protein and other impurities are removed by using a filter column and a centrifugal method to obtain relatively pure nucleic acid. In the centrifugal filtration method for extracting nucleic acid, the use of extraction column is a very important step.

The patent No. CN201920592429.2 discloses a nucleic acid extraction column convenient to clean, the column disclosed by the patent is generally produced by adopting an injection mold, only one column can be produced in one time in the existing mold, and the production efficiency is low; in addition, this cylinder is inside cavity, uses injection mold shaping back, and the inside and outside of cylinder all is provided with the module, is difficult for drawing of patterns after the shaping, simultaneously, the raw materials pour into injection mold back, generally need to stand a period and wait for the raw materials cooling to solidify, carries out the drawing of patterns again, and production efficiency is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the problem that exists among the prior art, the utility model provides a nucleic acid extraction post production mould to solve the technical problem who mentions in the background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a production mold of a nucleic acid extraction column comprises an upper mold and a lower mold, wherein the upper mold and the lower mold are provided with an injection molding device, a demolding device and a cooling device, the demoulding device comprises an ejector pin, a movable plate, a movable column, a fixed plate and a spring, wherein the ejector pin and the movable column are both arranged on the upper surface of the movable plate, the movable plate and the fixed plate are connected through a spring, the injection molding device comprises a first mold cavity, a second mold cavity, an inner mold block and an injection molding opening, the first die cavities, the second die cavities and the inner die blocks are all provided with a plurality of first die cavities which are all arranged on the lower surface of the upper die, the second die cavities which are all arranged on the upper surface of the lower die, the inner die blocks which are all arranged in the second die cavities, the lower surface of the upper die is provided with a runner which is communicated with the injection molding port and the first die cavity respectively.

Preferably, cooling device includes inlet, liquid outlet, feed liquor pipe, drain pipe and coupling mechanism, inlet and liquid outlet all set up the lower surface at the lower mould, and inlet and liquid outlet communicate in the inside of lower mould, and feed liquor pipe and inlet pass through coupling mechanism connects, and drain pipe and liquid outlet pass through coupling mechanism connects, is convenient for carry out the rapid cooling to the product after moulding plastics, improves production efficiency.

Preferably in a further aspect, the connecting mechanism includes a connecting nut, the connecting mechanism is provided with two sets, one of which is sleeved outside the liquid inlet pipe and is in threaded connection with the liquid inlet, and the other is sleeved outside the liquid outlet pipe and is in threaded connection with the liquid outlet, so that the liquid inlet pipe is connected with the liquid inlet, and the liquid outlet pipe is connected with the liquid outlet.

Preferably in further, be equipped with first spacing ring on the coupling nut, all be provided with on feed liquor pipe and the drain pipe with first spacing ring complex second spacing ring, be convenient for coupling nut and feed liquor pipe and drain pipe connect.

Preferably, the lower surface of the upper die is provided with a positioning pin, and the upper surface of the lower die is provided with a positioning hole matched with the positioning pin, so that the positioning is convenient during die assembly.

Preferably, the lower surface of the moving plate is provided with a guide rod, the fixed plate is provided with a guide hole matched with the guide rod, a limiting surface is arranged in the guide hole, and the spring is fixedly connected with the limiting surface and guides the spring when the spring is compressed.

Preferably in further, be equipped with first through-hole and second through-hole on movable plate and the fixed plate respectively, feed liquor pipe and drain pipe set up in first through-hole and second through-hole, are convenient for feed liquor pipe and drain pipe and external equipment intercommunication.

(III) advantageous effects

Compared with the prior art, the utility model provides a nucleic acid extraction post production mould possesses following beneficial effect:

1. the utility model can simultaneously carry out injection molding on a plurality of products by arranging a plurality of first die cavities, a plurality of second die cavities and an inner die block, is convenient to connect the first die cavities and the injection molding ports by arranging a runner, and completes the injection molding production of the products by one injection molding port;

2. in the utility model, by arranging the demoulding device, when the upper mould moves downwards to close the mould, the movable column is extruded downwards to drive the thimble to move downwards, so as to realize injection moulding, after the injection moulding is finished, the upper mould moves upwards, the spring resets to drive the thimble to move upwards, a formed product is ejected out, and quick demoulding is realized through a set of power source;

3. the utility model discloses in through setting up cooling device, can improve the cooling rate after the product is moulded plastics, and then improve production efficiency, through setting up coupling mechanism, the inlet and the feed liquor pipe intercommunication of being convenient for, the liquid outlet and the drain pipe intercommunication of also being convenient for.

Drawings

FIG. 1 is a schematic view of the overall structure of a nucleic acid extraction column production mold of the present invention;

fig. 2 is a schematic view of the overall structure of another angle in the present invention;

FIG. 3 is a schematic structural view of a cooling device according to the present invention;

fig. 4 is a schematic diagram of the explosion structure of fig. 3 in the present invention;

fig. 5 is a schematic structural diagram of the middle fixing plate of the present invention.

In the figure: 1. an upper die; 2. a lower die; 3. a thimble; 4. moving the plate; 5. moving the column; 6. a fixing plate; 7. a spring; 8. a first mold cavity; 9. a second mold cavity; 10. an inner module; 11. an injection molding port; 12. a flow channel; 13. a liquid inlet; 14. a liquid outlet; 15. a liquid inlet pipe; 16. a liquid outlet pipe; 17. a connecting nut; 18. a first limit ring; 19. a second stop collar; 20. positioning pins; 21. positioning holes; 22. a guide bar; 23. a guide hole; 24. a limiting surface; 25. a first through hole; 26. a second via.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-5, a mold for producing a nucleic acid extraction column comprises an upper mold 1 and a lower mold 2, wherein the upper mold 1 and the lower mold 2 are provided with an injection molding device, a demolding device and a cooling device, the demolding device comprises an ejector pin 3, a movable plate 4 and a movable column 5, fixed plate 6 and spring 7, thimble 3 and removal post 5 all set up the upper surface at movable plate 4, connect through spring 7 between movable plate 4 and the fixed plate 6, the device of moulding plastics includes first die cavity 8, second die cavity 9, interior module 10 and the mouth of moulding plastics 11, first die cavity 8, second die cavity 9 and interior module 10 all are provided with a plurality of, the lower surface at last mould 1 is all seted up to a plurality of first die cavity 8, the upper surface at lower mould 2 is all seted up to a plurality of second die cavity 9, module 10 all sets up in a plurality of second die cavity 9 in a plurality of, the lower surface of going up mould 1 is equipped with runner 12, runner 12 respectively with the mouth of moulding plastics 11 and the first die cavity 8 intercommunication of a plurality of.

Referring to fig. 1-4, the cooling device includes a liquid inlet 13, a liquid outlet 14, a liquid inlet pipe 15, a liquid outlet pipe 16 and a connecting mechanism, wherein the liquid inlet 13 and the liquid outlet 14 are both disposed on the lower surface of the lower mold 2, the liquid inlet 13 and the liquid outlet 14 are communicated inside the lower mold 2, the liquid inlet pipe 15 and the liquid inlet 13 are connected by the connecting mechanism, and the liquid outlet pipe 16 and the liquid outlet 14 are connected by the connecting mechanism. The connecting mechanism comprises two groups of connecting nuts 17, one connecting nut 17 is sleeved outside the liquid inlet pipe 15 and is in threaded connection with the liquid inlet 13, and the other connecting nut 17 is sleeved outside the liquid outlet pipe 16 and is in threaded connection with the liquid outlet 14. The connecting nut 17 is provided with a first limiting ring 18, and the liquid inlet pipe 15 and the liquid outlet pipe 16 are both provided with a second limiting ring 19 matched with the first limiting ring 18. The moving plate 4 and the fixed plate 6 are respectively provided with a first through hole 25 and a second through hole 26, and the liquid inlet pipe 15 and the liquid outlet pipe 16 are arranged in the first through hole 25 and the second through hole 26. When the cooling liquid circulation die is used, the liquid inlet pipe 15 penetrates through the first through hole 25 and the second through hole 26 and then is aligned with the liquid inlet 13, the connecting nut 17 on the liquid inlet pipe 15 is rotated to be in threaded connection with the liquid inlet 13, until the first limiting ring 18 on the connecting nut 17 is attached to the second limiting ring 19 on the liquid inlet pipe 15, connection and fixation of the liquid inlet pipe 15 and the liquid inlet 13 are achieved, connection and fixation of the liquid outlet pipe 16 and the liquid outlet 14 are achieved in the same mode, cooling liquid enters the lower die 2 through the liquid inlet pipe 15 in external equipment and flows into the external equipment again through the liquid outlet pipe 16, and circulation of the cooling liquid is achieved.

Referring to fig. 1, 2 and 5, the lower surface of the upper mold 1 is provided with a positioning pin 20, and the upper surface of the lower mold 2 is provided with a positioning hole 21 matched with the positioning pin 20. The lower surface of the moving plate 4 is provided with a guide rod 22, the fixed plate 6 is provided with a guide hole 23 matched with the guide rod 22, a limiting surface 24 is arranged in the guide hole 23, and the spring 7 is fixedly connected with the limiting surface 24. When the movable plate 4 is used, the upper die 1 is driven by an external hydraulic cylinder or other driving mechanisms to move downwards until the positioning pin 20 is matched with the positioning hole 21, the upper die 1 continues to move downwards to extrude the movable column 5, so that the movable column drives the movable plate 4 to move downwards, the guide rod 22 is matched with the guide hole 23 to guide when the movable plate 4 moves, and the spring 7 is continuously compressed until the upper die 1 and the lower die 2 complete die assembly.

Example 2:

in conclusion, when the cooling liquid circulation die is used, the liquid inlet pipe 15 penetrates through the first through hole 25 and the second through hole 26 and then is aligned with the liquid inlet 13, the connecting nut 17 on the liquid inlet pipe 15 is rotated to be in threaded connection with the liquid inlet 13 until the first limiting ring 18 on the connecting nut 17 is attached to the second limiting ring 19 on the liquid inlet pipe 15, so that the liquid inlet pipe 15 and the liquid inlet 13 are fixedly connected, the liquid outlet pipe 16 and the liquid outlet 14 are fixedly connected in the same mode, the cooling liquid enters the lower die 2 through the liquid inlet pipe 15 in external equipment and flows into the external equipment again through the liquid outlet pipe 16, and circulation of the cooling liquid is achieved.

Example 3:

in summary, when the injection molding device is used, the upper mold 1 is driven by an external hydraulic cylinder or other driving mechanisms to move downwards until the positioning pin 20 is matched with the positioning hole 21, the upper mold 1 continues to move downwards to extrude the moving column 5, so that the moving plate 4 is driven to move downwards, when the moving plate 4 moves, the guide rod 22 is matched with the guide hole 23 to guide, the spring 7 is continuously compressed until the upper mold 1 and the lower mold 2 complete mold assembly, the raw material enters the first mold cavity 8 and the second mold cavity 9 through the injection port 11 to be molded, after the molding is finished, the upper mold 1 moves upwards, the spring 7 is reset to drive the moving plate 4 to move upwards, and further the ejector pin 3 is driven to move upwards, and the molded product and the inner mold block 10 are demolded.

In all the above-mentioned embodiments, the connection between two components may be selected from welding, bolt and nut fit connection, bolt or screw connection or other known connection methods according to actual situations, which are not repeated herein, and it is preferable to consider welding in the above description, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a nucleic acid extraction post production mould, includes mould (1) and lower mould (2), its characterized in that: the injection molding device comprises an upper mold (1) and a lower mold (2), and is characterized in that the upper mold (1) and the lower mold (2) are provided with an injection molding device, a demolding device and a cooling device, the demolding device comprises an ejector pin (3), a movable plate (4), a movable column (5), a fixed plate (6) and a spring (7), the ejector pin (3) and the movable column (5) are arranged on the upper surface of the movable plate (4), the movable plate (4) and the fixed plate (6) are connected through the spring (7), the injection molding device comprises a first mold cavity (8), a second mold cavity (9), an inner mold block (10) and an injection molding opening (11), the first mold cavity (8), the second mold cavity (9) and the inner mold block (10) are provided with a plurality of parts, the first mold cavity (8) is arranged on the lower surface of the upper mold (1), the second mold cavity (9) is arranged on the upper surface of the lower mold (2), and the inner mold block (10) is arranged in the second mold cavity (9), the lower surface of the upper die (1) is provided with a runner (12), and the runner (12) is communicated with the injection molding port (11) and the first die cavity (8) respectively.

2. The nucleic acid extraction column production mold according to claim 1, wherein: cooling device includes inlet (13), liquid outlet (14), feed liquor pipe (15), drain pipe (16) and coupling mechanism, inlet (13) and liquid outlet (14) all set up the lower surface at lower mould (2), and inlet (13) and liquid outlet (14) communicate in the inside of lower mould (2), and feed liquor pipe (15) and inlet (13) pass through coupling mechanism connects, and drain pipe (16) and liquid outlet (14) pass through coupling mechanism connects.

3. The mold for producing a nucleic acid extraction column according to claim 2, wherein: coupling mechanism includes coupling nut (17), coupling mechanism is provided with two sets ofly, one of them coupling nut (17) cover is established outside feed liquor pipe (15), and with inlet (13) threaded connection, another coupling nut (17) cover is established outside drain pipe (16), and with liquid outlet (14) threaded connection.

4. The nucleic acid extraction column production mold according to claim 3, wherein: the liquid inlet pipe (15) and the liquid outlet pipe (16) are both provided with second limiting rings (19) matched with the first limiting rings (18).

5. The nucleic acid extraction column production mold according to claim 1, wherein: the lower surface of the upper die (1) is provided with a positioning pin (20), and the upper surface of the lower die (2) is provided with a positioning hole (21) matched with the positioning pin (20).

6. The nucleic acid extraction column production mold according to claim 1, wherein: the lower surface of the moving plate (4) is provided with a guide rod (22), the fixed plate (6) is provided with a guide hole (23) matched with the guide rod (22), a limiting surface (24) is arranged in the guide hole (23), and the spring (7) is fixedly connected with the limiting surface (24).

7. The nucleic acid extraction column production mold according to claim 2, wherein: the movable plate (4) and the fixed plate (6) are respectively provided with a first through hole (25) and a second through hole (26), and the liquid inlet pipe (15) and the liquid outlet pipe (16) are arranged in the first through hole (25) and the second through hole (26).