CN210880847U

CN210880847U - Needle blowing device

Info

Publication number: CN210880847U
Application number: CN201921196731.2U
Authority: CN
Inventors: 王卫红; 潘凯; 李军; 苑红亮; 朱正超; 单春凤; 王伟
Original assignee: Taicang Ruijie Packaging New Material Co ltd
Current assignee: Taicang Ruijie Packaging New Material Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-06-30
Anticipated expiration: 2029-07-26

Abstract

The utility model relates to a blow needle device, including blowing the needle, blow the inside pole of blowing that is equipped with of needle, the opening part that blows the needle is equipped with and is used for the centre gripping groove of pole of blowing, the opening part that blows the needle still is equipped with a plurality of exhaust holes. The utility model can keep higher coaxiality with the blowing rod after positioning, thereby being convenient for positioning; the service life of the air blowing rod is prolonged; greatly improving the product quality and the production efficiency.

Description

Needle blowing device

Technical Field

The utility model relates to a blowing needle device of blowing machine especially relates to a positioner who blows needle device.

Background

The blow molding is to add plastic raw materials into a molding machine, melt the raw materials by heating a charging barrel, blow mold a blank onto a steel mold at the air pressure of more than 0.06MPa, open the mold after molding and cooling, take out a product, and remove burrs to obtain the product. In production, technologists mainly improve the production process by adjusting air pressure and forming time, so that the assembly requirements on the blowing needle and the blowing rod are high. As shown in fig. 5 and 6, the old blowing needle and the blowing rod do not have any positioning structure therebetween, but are positioned by the blowing needle holder. If the blowing rod is twisted or deformed in the practical production, the blowing rod is difficult to be concentric with the blowing needle, and the product quality is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem of blowing the pole accurate positioning of blowing in the blowing needle, the utility model provides a blow needle device, including blowing the needle, blow the inside pole of blowing that is equipped with of needle, the opening part that blows the needle is equipped with and is used for the centre gripping groove of pole of blowing, the opening part that blows the needle still is equipped with a plurality of exhaust holes.

Preferably, the size of the clamping groove corresponds to that of the air blowing rod, a plurality of semicircular holes are formed in the side wall of the clamping groove, the semicircular holes form the air exhaust holes, and the opening of each semicircular hole faces to the center of the clamping groove. The clamping groove is used for clamping the air blowing rod, the semicircular hole in the periphery of the clamping groove is used for exhausting air, and the clamping groove and the semicircular hole form a quincunx groove, so that the air blowing rod is more firmly fixed.

Further, the number of the semicircular holes is six. Six semicircle orifices and centre gripping groove enclose to form plum blossom form groove, adopt plum blossom form groove intensity higher, even the gas blow pole has taken place deformation and also can utilize its structural strength fine correction of giving to this guarantees that the compressed air of mould die cavity is more stable and even.

Preferably, in order to ensure accurate positioning of the blowing pin, the center of the holding groove coincides with the center of the blowing pin.

Furthermore, a groove is formed in the air blowing rod, and a sealing ring is arranged in the groove.

Preferably, the tail part of the blowing needle is provided with a thread which is used for being matched and installed with the blowing needle frame.

Has the advantages that: 1, after positioning, the positioning device can keep higher coaxiality with an air blowing rod, and is convenient to position;

2, prolonging the service life of the air blowing rod;

3, the product quality and the production efficiency can be greatly improved;

4, the processing is convenient.

Drawings

FIG. 1 is a cross-sectional view of a blow pin according to the present invention;

fig. 2 is a right side view of the present invention;

FIG. 3 is a schematic view of the structure of the blow pin;

FIG. 4 is a block diagram of the present invention;

FIG. 5 is a structural view of a conventional blow pin;

FIG. 6 is a right side view of a prior art blow pin;

fig. 7 is an assembled cross-sectional view of the present invention;

FIG. 8 is an assembled right side view of the present invention;

1. blowing a needle; 2. a clamping groove; 3. a semicircular hole; 4. a blowing rod; 5. an opening; 6. a groove; 7. tail part

Detailed Description

As shown in the figure, the needle blowing device comprises a blowing needle 1, wherein a blowing rod 4 is arranged inside the blowing needle 1, a clamping groove 2 used for clamping the blowing rod 4 is formed in the opening 5 of the blowing needle 1, and a plurality of exhaust holes are formed in the opening 5 of the blowing needle 1. As shown in fig. 2, the size of the clamping groove 2 corresponds to the size of the blowing rod 4, a plurality of semicircular holes 3 are formed in the side wall of the clamping groove 2, the plurality of semicircular holes 3 form the exhaust holes, and an opening 5 of each semicircular hole 3 faces to the center of the clamping groove 2. In the present embodiment, the number of the semicircular holes 3 is six. The center of the clamping groove 2 is consistent with the center of the blowing needle 1. The air blowing rod 4 is provided with a groove 6, and a sealing ring is arranged in the groove 6. And the tail part 7 of the blowing needle 1 is provided with a thread which is used for being matched and installed with the blowing needle frame.

The specific working principle is as follows: blow needle 1 and blow pole 4 and all will fix on blowing the needle frame, be equipped with recess 6 on the pole 4 of blowing, be equipped with the sealing washer in the recess 6, the sealing washer has guaranteed the stability of 4 internal gas pressures of the pole of blowing, prevents to leak gas, and the afterbody 7 of blowing needle 1 is equipped with the screw thread, and it is fixed with blowing the needle frame to blow the screw thread of needle 1 through afterbody 7. The blowing needle 1 is required to be closely contacted with the mould so as to ensure that the air pressure in the mould cavity can be kept stable. The portion of the blow pin 4 that protrudes is long and is responsible for blowing out high-pressure air, and therefore, deformation is relatively likely to occur in actual operation, and the direction of the blown compressed air changes. The stability of the direction of blowing compressed air directly influences the control of the product thickness, if the compressed air can not be effectively and uniformly diffused, the wall thickness of the product is easily uneven, and even demoulding is difficult. The utility model discloses a blow needle 1 not only can be fixed on blowing the needle frame with blow pole 4 together, can locate blow pole 4 again in opening 5 departments in addition, even blow pole 4 take place deformation also can utilize the fine correction of giving of its structural strength to this guarantees that the compressed air of mould die cavity is more stable and even.

Claims

1. A blow needle device which is characterized in that: including blowing needle (1), blow needle (1) inside and be equipped with blowing pole (4), the opening (5) department of blowing needle (1) is equipped with and is used for the centre gripping blow centre gripping groove (2) of pole (4), opening (5) department of blowing needle (1) still is equipped with a plurality of exhaust holes.

2. A blow pin apparatus according to claim 1, characterized in that: the size of centre gripping groove (2) with blow gas pole (4) size is corresponding, a plurality of semicircle orifices (3) have been seted up to centre gripping groove (2) lateral wall, semicircle orifice (3) form the exhaust hole, opening (5) orientation of semicircle orifice (3) the center of centre gripping groove (2).

3. A blow pin apparatus according to claim 2, characterized in that: the number of the semicircular holes (3) is six.

4. A blow pin apparatus according to claim 1, characterized in that: the center of the clamping groove (2) is consistent with the center of the blowing needle (1).

5. A blow pin apparatus according to claim 1, characterized in that: a groove (6) is formed in the air blowing rod (4), and a sealing ring is arranged in the groove (6).

6. A blow pin apparatus according to claim 1 or 4, characterized in that: the tail (7) of the blowing needle (1) is provided with a thread which is used for being installed in a matched mode with the blowing needle frame.