A small-caliber shrink-proof production blow needle

Abstract

The present application provides a small-caliber anti-shrinkage production blow needle, which relates to the field of hollow blow molding molds. A small-caliber anti-shrinkage production blow needle comprises a blow needle body, wherein the blow needle body comprises a connecting section, a blow needle body, and a blow needle. The connecting section, the blow needle body, and the blow needle are connected in sequence. A cutting sleeve is provided at the connection between the blow needle body and the blow needle. The lower end of the cutting sleeve is retracted. A blowing cavity is provided inside the connecting section, inside the blow needle body, and inside the blow needle. The utility model adds a cutting sleeve at the connection between the blow needle body and the blow needle. The cutting sleeve is screwed to the blow needle body. The bottle mouth matching position is divided into different diameters for processing to assist in smooth internal molding, which can facilitate overcoming the shrinkage defect of the inner wall of the bottle mouth of small-caliber products, and increases chamfers for easy capping.

Description

Technical Field

[0001] The present application relates to the field of hollow blow molding molds, and in particular to a small-caliber shrink-proof production blow needle. Background Art

[0002] Blow molding machine is a plastic processing machine. The plastic raw materials are added to the blow molding machine, and the raw materials are melted by heating the barrel. The blank is blown onto the steel mold at a pressure greater than 0.06MPa. After molding and cooling, the mold is opened to take out the product, and the burrs are removed to form the product. The blow pipe provides the blow needle with the high-pressure gas required in the production process. The blow needle is inserted into the blank and transmits the gas to the blank. During this period, the blow needle will generate high temperature and needs to be cooled by cooling water.

[0003] The existing blow needle cutting sleeve is locked to the blow needle by screws, which makes it inconvenient to process the chamfer feature. The inner wall forming part is a straight rise cut, which is easy to cause the internal shrinkage of the bottle mouth when producing small bottles, resulting in functional defects such as sealing and leakage. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a small-caliber shrink-proof production blow needle, which can solve the above-mentioned technical problems.

[0005] An embodiment of the present application provides a small-caliber anti-shrinkage production blow needle, including a blow needle body, the blow needle body including a connecting section, a blow needle body, and a blow needle, the connecting section, the blow needle body, and the blow needle are connected in sequence, a cutting sleeve is provided at the connection between the blow needle body and the blow needle, the lower end of the cutting sleeve is retracted, and a blowing cavity is provided inside the connecting section, inside the blow needle body, and inside the blow needle.

[0006] Preferably, the connecting section is provided with threads on the outside.

[0007] Preferably, the blow needle is arranged in a retractable manner.

[0008] Preferably, a convex ring is provided at the middle of the outer end of the cutting sleeve, and the thickness of the convex ring is 1-2 mm.

[0009] Preferably, an extension portion is provided at the upper end of the cutting sleeve, and the extension portion extends outward.

[0010] Preferably, the connecting section, the blowing needle body, the blowing needle and the cutting sleeve are all made of metal.

[0011] Preferably, the connecting section, the blow needle body and the blow needle are integrally formed, and the cutting sleeve can be detachably mounted on the blow needle body.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a small-caliber anti-shrinkage production blow needle, including a blow needle body, the blow needle body including a connecting section, a blow needle body, and a blow needle, the connecting section, the blow needle body, and the blow needle are connected in sequence, a cutting sleeve is provided at the connection between the blow needle body and the blow needle, the lower end of the cutting sleeve is retracted, and a blowing cavity is provided inside the connecting section, inside the blow needle body, and inside the blow needle; the utility model adds a cutting sleeve at the connection between the blow needle body and the blow needle, the cutting sleeve is screwed to lock the blow needle body, the bottle mouth matching position is divided into processing-assisted smooth internal molding by different diameters, which can easily overcome the shrinkage defect of the inner wall of the bottle mouth of small-caliber products, and increase the chamfer to facilitate capping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] The reference numerals are:

[0017] 1. Blow needle body; 2. Connecting section; 3. Blow needle body; 4. Blow needle; 5. Cutting sleeve; 6. Blowing cavity; 7. Thread; 8. Protruding ring; 9. Extension part. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] like Figure 1 As shown, a small-caliber anti-shrinkage production blow needle comprises a blow needle body 1, wherein the blow needle body 1 comprises a connecting section 2, a blow needle body 3, and a blow needle 4, wherein the connecting section 2, the blow needle body 3, and the blow needle 4 are connected in sequence, and a cutting sleeve 5 is provided at the connection between the blow needle body 3 and the blow needle 4, wherein the lower end of the cutting sleeve 5 is retracted, and a blowing cavity 6 is provided inside the connecting section 2, the blow needle body 3, and the blow needle 4; the utility model adds a cutting sleeve 5 at the connection between the blow needle body 3 and the blow needle 4, and the cutting sleeve 5 is screwed to lock the blow needle 4 body, and the bottle mouth matching position is divided into processing-assisted smooth internal molding by different diameters, which can facilitate overcoming the shrinkage defect of the inner wall of the bottle mouth of small-caliber products, and increases chamfering for easy capping.

[0025] like Figure 1 As shown, in this embodiment, the connecting section 2 is provided with a thread 7 on the outside. The thread 7 of the utility model facilitates installation on a hollow blow molding mold.

[0026] like Figure 1 As shown, in this embodiment, in order to facilitate the removal of the bottle body from the blow needle 4, the blow needle 4 is arranged in a retractable manner.

[0027] like Figure 1 As shown, in this embodiment, a convex ring 8 is provided in the middle of the outer end of the cutting sleeve 5, and the thickness of the convex ring 8 is 1-2 mm. An extension part 9 is provided at the upper end of the cutting sleeve 5, and the extension part 9 extends outward. The convex ring 8 and the extension part 9 of the utility model further prevent the inner wall of the bottle mouth from shrinking.

[0028] like Figure 1 As shown, in this embodiment, in order to extend the service life of the utility model, the connecting section 2, the blow needle body 3, the blow needle 4, and the cutting sleeve 5 are all made of metal material, the connecting section 2, the blow needle body 3, and the blow needle 4 are integrally formed, and the cutting sleeve 5 can be detachably installed on the blow needle body 1. Specifically, the cutting sleeve 5 of the utility model can be selected in different sizes.

[0029] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A small-caliber shrink-proof production blow needle, characterized in that: The invention comprises a blow needle body, wherein the blow needle body comprises a connecting section, a blow needle body and a blow needle, wherein the connecting section, the blow needle body and the blow needle are connected in sequence, a cutting sleeve is provided at the connection between the blow needle body and the blow needle, and the lower end of the cutting sleeve is retracted, and a blowing cavity is provided inside the connecting section, the blow needle body and the blow needle.

2. A small-caliber shrink-proof production blow needle according to claim 1, characterized in that: The connecting section is provided with threads on the outside.

3. A small-caliber shrink-proof production blow needle according to claim 1, characterized in that: The blowing needle is arranged in a retractable manner.

4. A small-caliber shrink-proof production blow needle according to claim 1, characterized in that: A convex ring is arranged at the middle of the outer end of the cutting sleeve, and the thickness of the convex ring is 1-2 mm.

5. A small-caliber shrink-proof production blow needle according to claim 1, characterized in that: An extension portion is disposed at the upper end of the cutting sleeve, and the extension portion extends outward.

6. A small-caliber shrink-proof production blow needle according to claim 1, characterized in that: The connecting section, the blowing needle body, the blowing needle and the cutting sleeve are all made of metal.

7. A small-caliber shrink-proof production blow needle according to claim 1, characterized in that: The connecting section, the blow needle body and the blow needle are integrally formed, and the cutting sleeve can be detachably mounted on the blow needle body.

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