CN216400367U

CN216400367U - Skirt-free PCR plate injection molding mold

Info

Publication number: CN216400367U
Application number: CN202122314434.7U
Authority: CN
Inventors: 项仁飞; 卞海航; 金烨; 顾正林; 黄林新; 陈虎
Original assignee: Suzhou Ruizhijie Precision Machinery Manufacturing Co ltd
Current assignee: Suzhou Ruizhijie Precision Machinery Manufacturing Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-29
Anticipated expiration: 2031-09-24

Abstract

The utility model belongs to the field of production of PCR plates, and particularly relates to a skirt-free PCR plate injection molding die which comprises a base, wherein four support rods are contacted with the base, a frame is welded on the support rods, a containing groove is formed in the base, an elastic sheet is welded in the containing groove, the elastic sheet is welded with the support rods, a motor is fixedly installed on the base, a rotating shaft of the motor is rotatably connected with the base, a square block is welded on the rotating shaft, an eccentric wheel is clamped on the outer side of the square block, and a lower die is welded on the frame. According to the utility model, by arranging the support rod, the elastic sheet, the motor, the square block, the eccentric wheel and the like, in the injection molding process, the motor drives the eccentric wheel to rotate, so that the eccentric wheel collides with the support rod, the elastic sheet is deformed, and further the frame is vibrated, so that a cavity between the lower die and the upper die can be quickly and uniformly fed, the local solidification of hot molten liquid in the cavity is avoided, and the injection molding efficiency and the injection molding quality are ensured.

Description

Skirt-free PCR plate injection molding mold

Technical Field

The utility model relates to the technical field of PCR plate production, in particular to a skirt-free PCR plate injection molding mold.

Background

Currently, PCR reaction technology is indispensable in molecular biological research and medical clinical diagnosis. PCR reaction plates are commonly used in PCR reactions, which comprise a panel and a plurality of reaction tubes, and are typically 8-well, 12-well, 96-well or 384-well, i.e. 8, 12, 96 or 384 corresponding reaction tubes, are specially designed for batch reactions and are used in PCR instruments and sequencers. In the prior art, when the skirt-free PCR plate injection molding mold is used, hot melt liquid is easily cooled locally in a cavity in the injection molding process, so that the injection molding quality and the injection molding efficiency are affected, and meanwhile, a product is easily damaged in the demolding process. Accordingly, there is a need for improvements in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a skirt-free PCR plate injection molding mold, which solves the problem that hot melt is easy to cool locally in a cavity and also solves the problem that a product is easy to damage in the demolding process.

In order to achieve the purpose, the utility model provides the following technical scheme: a skirt-free PCR plate injection molding mold comprises a base, wherein four support rods are contacted on the base, a frame is welded on the support rods, a containing groove is formed in the base, an elastic sheet is welded in the containing groove, the elastic sheet is welded with the support rods, a motor is fixedly installed on the base, a rotating shaft of the motor is rotatably connected with the base, a square block is welded on the rotating shaft, an eccentric wheel is clamped on the outer side of the square block, a lower mold is welded on the frame, an air cylinder is fixedly installed on the frame, an air cylinder rod of the air cylinder is slidably connected with the frame, a connecting sleeve is slidably sleeved on the outer side of the air cylinder rod, an upper mold is welded on the connecting sleeve, the upper mold is contacted with the lower mold, a connecting plate is fixedly sleeved on the outer side of the air cylinder rod, a connecting rod is slidably sleeved on the connecting plate, a stop block is welded on the connecting rod, and a spring is arranged on the outer side of the connecting rod, the tail end of the connecting rod is fixedly connected with a mandril, and a top plate is connected in the lower die in a sliding mode.

Preferably, four supporting rods are uniformly distributed on the base, and one of the supporting rods is in contact with the eccentric wheel.

Preferably, a square groove is formed in the eccentric wheel, and a square block is clamped in the square groove.

Preferably, the side wall of the connecting sleeve is sleeved with a limiting pin in a sliding mode, and the limiting pin is connected with the cylinder rod through threads.

Preferably, one end of the spring is welded with the connecting plate, and the other end of the spring is welded with the stop block.

Preferably, a top rod is connected in the lower die in a sliding mode and welded with the top plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, by arranging the support rod, the elastic sheet, the motor, the square block, the eccentric wheel and the like, in the injection molding process, the motor drives the eccentric wheel to rotate, so that the eccentric wheel collides with the support rod, the elastic sheet is deformed, and further the frame is vibrated, so that a cavity between the lower die and the upper die can be quickly and uniformly fed, the local solidification of hot molten liquid in the cavity is avoided, and the injection molding efficiency and the injection molding quality are ensured.

2. According to the utility model, through the arrangement of the connecting plate, the connecting rod, the spring, the ejector rod, the top plate and the like, under the action of the spring, the ejector rod drives the top plate to elastically jack up the PCR plate during demolding, so that the PCR plate is not easy to damage during demolding.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the utility model of FIG. 1;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

fig. 4 is an enlarged view of the utility model at B in fig. 2.

In the figure: 1. a base; 2. a support bar; 3. a frame; 4. a containing groove; 5. a spring plate; 6. a motor; 7. a rotating shaft; 8. a square block; 9. an eccentric wheel; 10. a square groove; 11. a lower die; 12. a cylinder; 13. a cylinder rod; 14. connecting sleeves; 15. a spacing pin; 16. an upper die; 17. a connecting plate; 18. a connecting rod; 19. a stopper; 20. a spring; 21. a top rod; 22. a top plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a skirtless PCR plate injection molding mold comprises a base 1, four support rods 2 are contacted on the base 1, a frame 3 is welded on the support rods 2, a containing groove 4 is formed on the base 1, an elastic sheet 5 is welded in the containing groove 4, the elastic sheet 5 is welded with the support rods 2, a motor 6 is fixedly installed on the base 1, a rotating shaft 7 of the motor 6 is rotatably connected with the base 1, a square block 8 is welded on the rotating shaft 7, an eccentric wheel 9 is clamped on the outer side of the square block 8, a lower die 11 is welded on the frame 3, an air cylinder 12 is fixedly installed on the frame 3, an air cylinder rod 13 of the air cylinder 12 is slidably connected with the frame 3, a connecting sleeve 14 is slidably sleeved on the outer side of the air cylinder rod 13, an upper die 16 is welded on the connecting sleeve 14, the upper die 16 is contacted with the lower die 11, a connecting plate 17 is fixedly sleeved on the outer side of the air cylinder rod 13, a connecting rod 18 is slidably sleeved on the connecting plate 17, a stop block 19 is welded on the connecting rod 18, a spring 20 is arranged on the outer side of the connecting rod 18, a top rod 21 is fixedly connected at the tail end of the connecting rod 18, and a top plate 22 is slidably connected in the lower die 11.

Referring to fig. 1 and 2, four support rods 2 are uniformly distributed on a base 1, wherein one support rod 2 is in contact with an eccentric wheel 9. By providing four support bars 2, the frame 3 is kept stable.

Referring to fig. 3, a square groove 10 is formed on the eccentric wheel 9, and a square block 8 is clamped in the square groove 10. Through the arrangement of the square groove 10 and the square block 8, the rotating shaft 7 can drive the eccentric wheel 9 to rotate.

Referring to fig. 2, a limit pin 15 is slidably sleeved on a side wall of the connecting sleeve 14, and the limit pin 15 is connected with the cylinder rod 13 through a thread. The connection sleeve 14 and the cylinder rod 13 are connected by providing a stopper pin 15.

Referring to fig. 4, one end of the spring 20 is welded to the connecting plate 17, and the other end of the spring 20 is welded to the stopper 19. The link 18 is automatically reset relative to the connecting plate 17 by the spring 20.

Referring to fig. 2, a top bar 21 is slidably connected in the lower mold 11, and the top bar 21 is welded to the top plate 22. By providing the ejector pins 21 and the top plate 22, the PRC sheet is easily demolded.

The specific implementation process of the utility model is as follows: when in injection molding, the motor 6 is started, the motor 6 starts the rotating shaft 7 to rotate, the rotating shaft 7 drives the square block 8 to rotate, the square block 8 drives the eccentric wheel 9 to rotate, the eccentric wheel 9 rotates and collides with the supporting rod 2, so that the supporting rod 2 generates deviation, the supporting rod 2 deviates to deform the elastic sheet 5, the supporting rod 2 deviates to move the frame 3, when the eccentric wheel 9 rotates and the supporting rod 2 is separated, the elastic sheet 5 resets to reset the supporting rod 2, so that the supporting rod 2 regularly vibrates, so that the frame 3 vibrates, the frame 3 vibrates to drive the lower die 11 to vibrate, the lower die 11 vibrates to enable a cavity between the lower die 11 and the upper die 16 to quickly and uniformly feed, hot melt is prevented from being locally solidified in the cavity, the injection molding efficiency and the injection molding quality are ensured, when in demolding, the cylinder 12 is started, the cylinder 12 starts the cylinder rod 13 to retract, the cylinder rod 13 drives the connecting sleeve 14 to move, the connecting sleeve 14 drives the upper die 16 to move and the lower die 11 to separate, the air cylinder rod 13 drives the connecting plate 17 to move, the connecting plate 17 moves to drive the connecting rod 18 to move through the spring 20, the connecting rod 18 drives the top plate 22 to move through the ejector rod 21, the top plate 22 elastically jacks up the PCR plate, and the demolding process of the PCR plate is not easy to damage.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a no shirt rim PCR board injection moulding mould, includes base (1), its characterized in that: the base (1) is contacted with four support rods (2), the support rods (2) are welded with a frame (3), the base (1) is provided with an accommodating groove (4), an elastic sheet (5) is welded in the accommodating groove (4), the elastic sheet (5) is welded with the support rods (2), the base (1) is fixedly provided with a motor (6), a rotating shaft (7) of the motor (6) is rotatably connected with the base (1), a square block (8) is welded on the rotating shaft (7), an eccentric wheel (9) is clamped on the outer side of the square block (8), the frame (3) is welded with a lower die (11), the frame (3) is fixedly provided with an air cylinder (12), an air cylinder rod (13) of the air cylinder (12) is slidably connected with the frame (3), and a connecting sleeve (14) is slidably sleeved on the outer side of the air cylinder rod (13), the connecting sleeve is characterized in that an upper die (16) is welded on the connecting sleeve (14), the upper die (16) is in contact with the lower die (11), a connecting plate (17) is fixedly sleeved on the outer side of the air cylinder rod (13), a connecting rod (18) is sleeved in the connecting plate (17) in a sliding mode, a stop block (19) is welded on the connecting rod (18), a spring (20) is arranged on the outer side of the connecting rod (18), an ejector rod (21) is fixedly connected to the tail end of the connecting rod (18), and a top plate (22) is connected in the lower die (11) in a sliding mode.

2. The skirtless PCR plate injection molding mold of claim 1, wherein: the four supporting rods (2) are uniformly distributed on the base (1), and one of the supporting rods (2) is in contact with the eccentric wheel (9).

3. The skirtless PCR plate injection molding mold of claim 1, wherein: a square groove (10) is formed in the eccentric wheel (9), and a square block (8) is connected in the square groove (10) in a clamping mode.

4. The skirtless PCR plate injection molding mold of claim 1, wherein: the side wall of the connecting sleeve (14) is sleeved with a limiting pin (15) in a sliding mode, and the limiting pin (15) is connected with the cylinder rod (13) through threads.

5. The skirtless PCR plate injection molding mold of claim 1, wherein: one end of the spring (20) is welded with the connecting plate (17), and the other end of the spring (20) is welded with the stop block (19).

6. The skirtless PCR plate injection molding mold of claim 1, wherein: and a push rod (21) is connected in the lower die (11) in a sliding manner, and the push rod (21) is welded with the top plate (22).