阅读说明：本技术 模制方法和装置 (Method of moulding and device ) 是由 D·西姆斯 C·哈里森 P·普赖斯 于 2018-01-30 设计创作，主要内容包括：本发明涉及用于形成聚丙烯PCR板的模制工具和方法,所述模制工具包含通道、主体和溢流区域；其中所述通道被配置成便于将熔融塑料材料引入所述主体中,并且其中所述主体被配置成一旦所述模制工具的所述主体已经填充有所述熔融塑料,就便于所述熔融塑料流入所述溢流区域中。(The present invention relates to the mould and method that are used to form polypropylene PCR plate, the mould includes channel, main body and overflow area；Wherein the channel, which is configured to facilitate, is introduced into melted plastic material in the main body, and wherein the main body is configured to facilitate the molten plastic once the main body of the mould is already filled with the molten plastic and flow into the overflow area.)

1. a kind of mould for being configured to be formed polypropylene PCR plate, the mould includes channel, main body and overflow area Domain；Wherein the channel, which is configured to facilitate, is introduced into melt polypropylene plastic material in the main body, and the wherein master Body is configured to once the main body of the mould is already filled with the melt polypropylene plastics, is facilitated described molten Melt polypropylene plastics to flow into the overflow area, wherein the main body is only opened to the channel and the overflow area, Described in overflow area only opened to the main body so that the sole inlet of the mould/export as via the channel, Wherein the main body of the mould includes to be configured to generate thick region and thin region in the polypropylene PCR plate Part.

2. mould according to claim 1 is configured for standard injection molding.

3. according to claim 1 or mould as claimed in claim 2, wherein be configured to facilitate only will melting in the channel Polypropylene plastic material is introduced into the main body of the mould.

4. mould according to any one of the preceding claims, wherein the thickness region is in 0.90mm to 1.50mm's In range.

5. mould according to any one of the preceding claims, wherein the thin region is in 0.15mm to 0.30mm's In range.

6. mould according to any one of the preceding claims gathers melting wherein the channel is configured to facilitate Acrylic plastic material is introduced into the part for being configured to generate thick region in the polypropylene PCR plate of the main body.

7. mould according to any one of the preceding claims, wherein the main body is configured to facilitate the melting Polypropylene plastic material is flowed into from the part for being configured to generate thick region in the polypropylene PCR plate and is configured to In the part for generating thin region in the polypropylene PCR plate.

8. mould according to any one of the preceding claims, wherein the main body is configured to facilitate the melting Polypropylene plastic material flows into the overflow area from the part for being configured to generate thin region in the polypropylene PCR plate In domain.

9. mould according to any one of the preceding claims, wherein the overflow area is configured to generate waste material Product.

10. mould according to any one of the preceding claims, wherein the channel is configured to generate waste material production Product.

11. mould according to any one of the preceding claims, wherein the main body is configured to generate described gather Propylene PCR plate.

12. mould according to any one of the preceding claims, wherein the overflow area be configured to generate it is useless Expect that product, the waste material product have the institute for being configured to generate thin region in the polypropylene PCR plate than the main body State the bigger thickness of the thickness of part.

13. mould according to any one of the preceding claims, wherein the mould is configured to form 24 Hole PCR plate.

14. mould according to any one of the preceding claims, wherein the mould is configured to form 32 Hole PCR plate.

15. mould according to any one of the preceding claims, wherein the mould is configured to form 48 Hole PCR plate.

16. mould according to any one of the preceding claims, wherein the mould is configured to form 96 Hole PCR plate.

17. mould according to any one of the preceding claims, wherein the mould is configured to form 384 Hole PCR plate.

18. mould according to any one of the preceding claims, wherein the main body is configured to described poly- The part that thick region is generated in propylene PCR plate is configured to generate the platform of the PCR plate.

19. mould according to any one of the preceding claims, wherein the main body is configured to described poly- The part that thick region is generated in propylene PCR plate is configured to generate the platform and the skirt section of the PCR plate.

20. mould according to any one of the preceding claims, wherein the main body is configured in the modeling The part that thin region is generated in material product is configured to generate the hole of the PCR plate.

21. mould according to any one of the preceding claims, wherein the main body is configured to facilitate described melt Melt plastic material to flow into the overflow area from the part for the bottom for being configured to generate the hole in the PCR plate.

22. a kind of method of injection-molded polypropylene PCR plate, it includes following steps

A) it provides according to claim 1 to mould described in any one of 21

B) melt polypropylene plastic material is introduced into the main body of the mould by channel, so that the once molding work The main body of tool is filled, and the melt polypropylene plastic material is configured to filling overflow area；

C) the polypropylene PCR plate is discharged from the mold with the moulded parts of the channel and the overflow area；

D) moulded parts in the channel and the overflow area is abandoned.

23. according to the method for claim 22, wherein described be injection moulded as standard injection molding.

24. according to method described in claim 22 or claim 23, wherein only by melt polypropylene during molding process Plastic material is introduced into the mould.

25. the method according to any one of claim 22 to 24, wherein the mold is not placed under external pressure.

Technical field

The present invention relates to the mould and method that are used to form polypropylene PCR plate, the mould includes channel, master Body and overflow area；Wherein channel, which is configured to facilitate, is introduced into melted plastic material in main body, and wherein main body is configured Once being already filled with the molten plastic at the main body of mould, facilitates the molten plastic and flow into overflow area.

Background technique

Current injection-molding apparatus and method is related to from one or more nozzles passing through melted plastic material in mold Referred to as one or more channel injections of runner are in mold (also referred to as mould or abbreviation tool).Melted plastic material is logical One or more runners are crossed to flow into the main body of mold.Once the whole volume of mold is filled, one or more nozzles just will Melted plastic material is injected into one or more runners and is therefore injected into the main body of mold by stopping, and mold is logical Often (automatically or manually) will be opened so that moulding part to be discharged and by moulded parts from mold from the main body of mold in this stage In one or more runners in be discharged.

It is used to mould the modeling in the product (such as PCR plate) with different-thickness section using the method and device for molding The problem of expecting material is that air can become to be trapped in plastic material, from the thicker region of plastic material to plastic material The flowing of thinner region be not always it is consistent, and finished product moulding of plastics materials product be not always it is flat, this can lead to Finished product moulding of plastics materials product is substantially scrapped.

Summary of the invention

According to the first aspect of the invention, the mould for being configured to be formed polypropylene PCR plate, the molding work are provided Tool includes channel, main body and overflow area；Wherein channel, which is configured to facilitate, is introduced into melt polypropylene plastic material in main body, Once and the main body that wherein main body is configured to mould is already filled with the molten plastic, and it is poly- to facilitate the melting Acrylic plastic flows into overflow area, and wherein main body is only opened to channel and overflow area, and wherein overflow area is only opened to main body It puts, so that the sole inlet of mould/export as via channel.This is favourable, because of the stream from thick region to thin region Dynamic model formula is improved, and can be trapped in any air in melted plastic material and be forced into overflow area rather than protect It stays in the main body of mold.This causes finished product molded plastic article more flat and without bubble, this then results in the need for scrapping Plastic product reduction.The main body of mould includes to be configured to generate thick region and thin in the polypropylene PCR plate The part in region.

Preferably, mould is configured for standard injection molding technique.This is favourable, because mold can be simple Ground moulds in instrument for standard injection without additional dedicated equipment.

Preferably, channel, which is configured to facilitate, is only introduced into melt polypropylene plastic material in the main body of mould.

Preferably, thick region is in the range of 0.90mm to 1.50mm.

Preferably, thin region is in the range of 0.15mm to 0.30mm.

Preferably, channel is configured to facilitate to introduce melt polypropylene plastic material and be configured in the described poly- of main body In the part for generating thick region in propylene PCR plate.

Preferably, main body is configured to facilitate the melt polypropylene plastic material from being configured in the polypropylene The part that thick region is generated in PCR plate flows into the part for being configured to generate thin region in the polypropylene PCR plate.

Preferably, main body is configured to facilitate the melt polypropylene plastic material from being configured in the polypropylene The part that thin region is generated in PCR plate flows into overflow area.

Preferably, overflow area is configured to generate waste material product.

Preferably, channel is configured to generate waste material product.

Preferably, main body is configured to generate the plastic product.

Preferably, overflow area is configured to generate waste material product, and thickness is configured to greater than main body described poly- The thickness of the part in thin region is generated in propylene PCR plate.

Preferably, mould is configured to be formed 24 hole PCR plates.

Preferably, mould is configured to be formed 32 hole PCR plates.

Preferably, mould is configured to be formed 48 hole PCR plates.

Preferably, mould is configured to be formed 96 hole PCR plates.

Preferably, mould is configured to be formed 384 hole PCR plates.

Preferably, the part for being configured to generate thick region in the plastic product of main body is configured to generate described The platform of PCR plate.

Preferably, the part for being configured to generate thick region in the plastic product of main body is configured to generate described The platform of PCR plate and skirt section.

Preferably, the part for being configured to generate thin region in the plastic product of main body is configured to generate described The hole of PCR plate.

Preferably, main body is configured to facilitate the melt polypropylene plastic material from being configured in the PCR plate The part for generating the bottom in hole flows into overflow area.

According to the second aspect of the invention, the method for injection-molded polypropylene PCR plate is provided, it includes following steps

A) mould as described in about the first aspect of the present invention is provided；

B) melt polypropylene plastic material is introduced into the main body of mould by channel, once so that mould Main body is filled, and melt polypropylene plastic material is configured to filling overflow area；

C) polypropylene PCR plate is discharged from mold with the moulded parts of channel and overflow area；

D) moulded parts in channel and overflow area is abandoned.

Preferably, it is injection moulded as standard injection molding.Because method can mould in instrument simply for standard injection Without additional dedicated equipment, so this is favourable.

Preferably, only melt polypropylene plastic material is introduced into mould during molding process.

Preferably, mold is not placed under external pressure.

Detailed description of the invention

Other aspects and feature one skilled in the relevant art of the invention are checked of the invention specific in conjunction with attached drawing It will become obvious after being described below of embodiment.

Fig. 1 illustrates typical injection molding machine；

Fig. 2 illustrates the cross sectional closeup view of a part of mould in the close position；

Fig. 3 illustrates the viewgraph of cross-section of a part of mould in an open position；

Fig. 4 illustrates the plan view of the example of molded plastic article and waste material product；With

Fig. 5 illustrates the perspective view of the example of molded plastic article and waste material product.

Specific embodiment

Fig. 1 illustrates typical injection-molded component 10, is referred to as injection molding machine 10.Mould 20 is mounted on this kind of In injection molding machine 10.Solid plastic material 14 is maintained in hopper 12, and be fed in cartridge heater 16 and mix with Melted plastic material 18 is formed, is then forced into mould 20.Solid plastic material 14,18 is typically using rotation Screw thread 24 mixes in cartridge heater 16.Melted plastic material 18 is forced to enter molding typically via the pressure head 22 of hydraulically operable In tool 20.If necessary to which different plastic materials to be fed in mould 20 together or sequentially, then injection-molded Machine may include more than one hopper 12.Injection molding machine 10 can have one or more cartridge heaters 16, or alternatively, heating Cylinder 16 can be divided into multiple cartridge heaters.

Fig. 2 illustrates the cross sectional closeup view of a part of injection molding machine 10, and wherein mould 20 is in the close position. Fig. 2 illustrates the position that cartridge heater 16 terminates in the nozzle 26 inside mould 20.Mould 20 includes channel 28, main body 30 and overflow area 38.Melted plastic material 18 leaves cartridge heater 16 via nozzle 26 and is injected into molding work by channel 28 In tool 20.Once channel 28 is filled with melted plastic material 18, continue to that melted plastic material 18 is forced to enter mould 20 Main body 30 in.In the illustrated embodiment, mould 20 is used to form PCR plate.Typical PCR plate includes terrace part With multiple holes, PCR plate can be full skirt section or half skirt section (semi or half) optionally including skirt portion, the skirt portion (if present).Thickness of the thickness of terrace part and the plastic material of skirt portion (if present) than multiple holes It is much bigger.Therefore, the portion that mould needs to have for generating thicker terrace part and skirt portion (if present) Point and the part for generating relatively thin hole.Typically, once melted plastic material 18 has been injected into channel 28, compel first Enter melted plastic material 18 in the thicker region 32 of the main body 30 of mould 20, it is described in the case where PCR plate mold Thicker region 32 is to form the region of terrace part.Once the thicker region 32 of the main body 30 of mould 20 is filled with melting modeling Expect material 18, melted plastic material 18 is then just forced to enter mould from the thicker region 32 of the main body 30 of mould 20 The thinner region 34 of 20 main body 30, in the case where PCR plate mold, the thinner region 34 is to form the region in hole.It is passing In the injection molding process of system, this is the position that program will then stop and finished plastic product will be discharged from mold.So And in the present case, program continues, once so that the thinner region 34 of the main body 30 of mould 20 is filled with Melted plastic material 18 then just forces melted plastic material 18 from the thinner region 34 of the main body 30 of mould 20 by going out Mouth point 36 enters overflow area 38, and in the case where PCR plate mold, the exit point 36 is the point for forming the bottom in hole.Overflow Region 38 and channel 28 are configured to generate the similar waste material product of thickness each other, and such melted plastic material is from as channel 28 Relatively thicker region fully flow into the thinner region 32 for forming platform in the case where PCR plate, flow into the PCR plate the case where It is lower by the suitable thinner region 34 for forming hole, finally flow into other relatively thicker region as overflow area 38.Mould work Tool 20 includes the final relatively thicker region as overflow area 38, allows to be trapped in any air in melted plastic material This final area is forced into without being kept in the moulded parts of plastic product, additionally due to depositing after very thin region Final thick region herein, so improving the plastics flow pattern flowed into thin region from thick region.

Fig. 3 illustrates the viewgraph of cross-section of a part of mould 20 in an open position.As can be seen from Figure 3, mould Tool 20 processed includes three physical parts 20a, 20b and 20c, and generating when they link together includes channel 28, main body 30 With the void space of overflow area 38.Although in the illustrated embodiment, mould 20 include three physical part 20a, 20b and 20c, but in alternative embodiments, it may include fewer of more than three physical parts, this depends on 20 He of mould The complexity of product to be molded.In the embodiment illustrated for the ease of processing, the plastic product 40 being molded is configured It is discharged at from the side of mould 20 between the physical part 20a and 20b of mould 20, and as respectively from channel 28 And the waste material product 42,44 of the moulded parts of overflow area 38 is configured to from mould between the physical part 20b and 20c of mould The other side of tool 20 processed is discharged.This enables the moulded parts of discharge to be sorted to holding and scrap in case without additional customer Input.

Figure 4 and 5 illustrate molded plastic article 40 and as respectively from the moulded parts of channel 28 and overflow area 38 The example of waste material product 42,44.