CN112892620A

CN112892620A - Experimental container manufactured by combining film heat sealing and injection molding processes

Info

Publication number: CN112892620A
Application number: CN202011095500.XA
Authority: CN
Inventors: 金栋; 沈佐华; 刘根焰; 张怡
Original assignee: Xintrum Pharmaceuticals Ltd
Current assignee: Xintrum Pharmaceuticals Ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-06-04

Abstract

The invention discloses an experimental container manufactured by combining a film heat sealing process and an injection molding process, and relates to an experimental container, which consists of a container main body and a plurality of pipe bodies 2 connected with the container main body, wherein the bottom of the container main body is provided with a bottom film 1. The experimental container is manufactured by adopting a method of combining a film heat-sealing process and an injection molding process.

Description

Experimental container manufactured by combining film heat sealing and injection molding processes

Technical Field

The invention relates to an instrument for biological, medical and chemical scientific research or experiments, in particular to an experimental container manufactured by combining a film heat sealing and injection molding process.

Background

In the process of biological, medical and chemical research or experiment, clinical examination and the like, a certain sample container with a specific shape is often needed. Such as a multi-port container.

The sample container with a specific shape is often complex in production process or too high in cost, and even difficult to realize industrially. Therefore, the process of studying such containers is also a technical problem to be solved.

Plastic articles are typically manufactured using an injection molding process. However, since the sample container has a hermetic structure, it is restricted by the release from the injection mold. It is difficult to achieve the sealing of the container at one time only by the injection molding process.

When plastic closed sample containers are produced in large scale, the difficulty in manufacturing the closed containers needs to be solved, and the difficulty that the cost needs to be low needs to be solved.

Disclosure of Invention

It is a first object of the present invention to provide a multi-ported assay container. The second purpose of the invention is to provide a manufacturing method of the special-shaped experimental container, which has low cost and simple process and is convenient for industrialized mass production.

The invention provides the following technical scheme:

an experimental container consists of a container main body and a plurality of mutually independent tube bodies 2 connected with the container main body; the method is characterized in that:

the bottom of the container body is provided with a bottom film 1 which is a thin film and comprises a single-layer material film or a composite film; the material used is selected from plastics or metal composites. Hereinafter, referred to as "film" in unison;

the number of the tube bodies 2 is more than or equal to two;

the pipe bodies 2 are mutually independent outside the container main body, and when other pipe bodies are not opened, each pipe body can independently put substances or independently extract substances in the pipe body; (ii) a

A communicating groove 5 for communicating the pipes is arranged between the adjacent pipe bodies 2 in the container; so that the flow of the substances in the pipes among different pipes can be realized when needed;

the pipe mouth part of each pipe body 2 is provided with a pipe cover or a pipe plug which can close or open the pipe body.

The shape and size of the container body and each pipe body are not limited, and the container body and each pipe body are arranged according to actual needs of different purposes.

A film at the bottom of the container body, said film of single layer material being selected from any one of: LDPE film, MDPE film, HDPE film, EVA film, CPP film or PET film; the composite film comprises a BOPP film or an aluminum-plastic composite film.

In one example of the invention, a tube cap 4 is provided, and the spout and the tube cap 4 have threads that allow the spout and the tube cap to be screwed tight for sealing or opening.

In another embodiment of the present invention, one of the tubes has a larger tube diameter than the other tubes, or one of the tubes has a larger length than the other tubes.

In another embodiment of the present invention, one of the tube bodies has two layers of tube caps; the two-layer tube cover comprises an inner cover 6 and an outer cover 7. The inner cover 6 directly covers the pipe orifice, and the outer cover 7 covers the outer part of the inner cover 6;

the top material of the inner lid 6 is a film 8, which may be a metallic or non-metallic film. Such as a plastic film sealed to the top of the inner lid 6 by heat sealing of the film. Or may be made of aluminum foil or the like.

After the container is filled with substances, the container can be sealed by covering the inner cover 6;

when the machine is required to automatically sample, the film is arranged at the top of the inner cover 6, so that the inner cover 6 does not need to be opened, and the sampling equipment can conveniently puncture the film 8 directly to sample from the container;

when the remainder in the container is preserved after partial sampling, the container can be resealed by covering the inner cap 6 with the outer cap 7 after sampling.

The invention also provides a manufacturing method of the experimental container, which is characterized in that a method combining a film heat sealing process and an injection molding process is adopted.

Specifically, a bottomless experimental container body and a tube body (i.e., a container body with a plurality of tube bodies but with an open bottom) are produced by using an injection mold, and then a film is hot-pressed to the bottom of the container body by using a film heat-sealing process to seal the container.

The film is hot-pressed to the bottom of the container body, and the plastic film is hot-melted in the plastic frame at the bottom of the opening of the container body after being tightened.

In the prior art prior to the present invention, no plastic test container was made using the combined film heat seal and injection molding process of the present invention.

The manufacturing method of the invention has the following advantages:

1. simple process

The injection mold of the experiment container without the bottom has a simple structure and is easy to inject;

2. low cost

The injection molding production is carried out through a one-mold multi-cavity mold, and the purposes of low manufacturing cost and high production efficiency can be achieved.

The bottom is sealed by adopting a film heat-sealing process, so that the direct demolding of the injection mold is facilitated, the service life of the mold can be prolonged, and the reject ratio of a finished product can be reduced;

3. the container can be produced in an industrialized scale.

The film heat sealing and injection molding process is combined, so that the defects that the demolding limitation of an injection mold is overcome, and a closed structure cannot be realized at one time are overcome. Can be manufactured in large batch in short time, does not need special equipment and saves equipment cost.

Description of the drawings:

FIGS. 1 to 3 are schematic structural views of one embodiment of the experimental vessel of the present invention. Wherein:

FIG. 1 is an exploded view;

FIG. 2 is a six-view;

fig. 3 is a schematic sectional structure.

In the above figures, 1 is a base film, 2 is a tube, 3 is a screw, 4 is a cap, and 5 is a communicating groove.

FIG. 4 is a sectional view of a tube body having a two-layered cap according to another embodiment of the present invention; in the figure, 6 is an inner lid, 7 is an outer lid, and 8 is a film.

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings.

Example 1 five-tube single-layer tube cap experimental container

Fig. 1 to 3 show an embodiment of the present invention.

The structure is as follows:

the experimental container consists of a container body and five tube bodies 2 connected with the container body (but the number of the tubes is not limited to 5, and any number can be set according to the requirement in practical application);

each tube body is independent, and when other tube bodies are not opened, each tube body can independently put a sample or independently extract substances in the tube from each tube body;

the bottom of the container body is a film, namely a bottom film 1;

a communicating groove 5 is arranged between the inner pipes of the pipe body 2, so that the flow of substances in the pipes among different pipes can be realized when required;

the outer ring of the head pipe orifice of the pipe body 2 is provided with threads 3, the inner ring of the pipe cover 4 is provided with threads, and the sealing of the head pipe orifice is realized when the pipe cover 4 is screwed onto the head pipe orifice of the pipe body 2.

Secondly, the manufacturing method comprises the following steps:

1. producing an open (i.e., bottomless) test container with an injection mold; the bottom of the opening is provided with a plastic frame, and the surface of the frame is flat and smooth;

2. and (3) thermally sealing the bottom film 1 to the plane of the bottom of the opening by utilizing a film thermal sealing process to realize the sealing of the tube bottom.

Advantages of the third process

1. The injection molding process is used for producing the open container, so that the direct demolding of an injection mold is facilitated, and the large-scale production can be realized;

2. because the surface of the plastic frame at the bottom of the opening is flat and smooth, the plastic frame ensures that the basement membrane has enough contact surface when in heat sealing, and realizes reliable sealing.

EXAMPLE 2 sampling Container for automated inspection apparatus

Fig. 4 is another embodiment of the present invention.

The structure is basically the same as that of embodiment 1, but 10 pipe bodies (the number of the pipe bodies can be increased or decreased according to actual needs) are provided, and each pipe body is provided with a pipe cover with threads which can be screwed or opened. The container was made in the same manner as in example 1.

The difference in structure lies in that one of them body has two-layer tube cap: the inner cover 6 directly covers the nozzle, and the outer cover 7 covers the inner cover 6; the top material of the inner lid 6 is a film 8.

The using method comprises the following steps:

1. after the container is filled with substances, the inner cover 6 is covered to seal the container;

2. the experimental container is placed into an automatic detector, the inner cover 6 does not need to be opened, a liquid-transfering gun head of the detector directly pierces the thin film 8 to extract the object to be detected, the outer cover 7 is screwed after extraction, and the container is sealed for the second time, so that the sample in the container is prevented from being spilled or polluted.

The above two embodiments are only intended to illustrate the present invention, and do not limit the spirit of the present invention in any way, and any simple modification, equivalent change or modification made to the above embodiments according to the technical principle of the present invention still fall within the technical scope of the present invention.

Claims

1. An experimental container consists of a container main body and a plurality of mutually independent tube bodies 2 connected with the container main body; the method is characterized in that:

the bottom of the container body is a bottom film 1 which is a thin film;

the number of the tube bodies 2 is more than or equal to two;

the pipe bodies 2 are mutually independent outside the container main body;

a communicating groove 5 is arranged between adjacent pipe bodies 2 in the container;

2. The test container of claim 1, wherein the test container is manufactured by a combination of a film heat sealing process and an injection molding process.

3. The experimental container as claimed in claim 2, wherein the manufacturing is to produce the sample container body with the bottom opened by using an injection mold, and then to seal the container by hot-pressing the film to the bottom of the container body by using the film heat-sealing process.

4. The laboratory vessel according to claim 1, wherein the base film 1 is a film of a single-layer material or a composite film; the material used is selected from plastics or metal composites.

5. The assay vessel according to claim 4, the film of single layer material being selected from any one of the following: LDPE film, MDPE film, HDPE film, EVA film, CPP film or PET film; the composite film comprises a BOPP film or an aluminum-plastic composite film.

6. The experimental container as claimed in claim 1, wherein the nozzle of the tube body 2 is provided with a tube cap 4; the outer ring of the nozzle is provided with a thread 3, and the inner ring of the tube cover 4 is also provided with a corresponding thread which can enable the nozzle and the tube cover to be screwed or opened.

7. The experimental vessel of claim 1, wherein a tube diameter of one tube is larger than that of the other tubes, or a length of one tube is larger than that of the other tubes.

8. The assay vessel according to claim 6 or 7, wherein one tube body has two layers of tube caps; the two-layer tube cover comprises an inner cover 6 and an outer cover 7; the top material of the inner lid 6 is a film 8.

9. A method for manufacturing a closed container is characterized in that a method combining a film heat sealing process and an injection molding process is adopted,

the container with an opening at the bottom is produced by an injection mold, and then the film is hot-pressed to the bottom of the container body by utilizing a film heat-sealing process, so that the bottom of the container is sealed.

10. The method of claim 9, wherein the film is hot-pressed to the bottom of the container body by hot-melting the plastic film within a plastic frame at the bottom of the opening of the container body after the plastic film is stretched.