Novel sealing structure special for bottle blowing machine

Abstract

The utility model relates to the technical field of sealing of bottle blowing machines, in particular to a novel special sealing structure for a bottle blowing machine, which comprises an air cylinder, a bottle blank, a bottle blowing mould, a sealing head and a soft seal mounted in the sealing head. The bottle blank comprises an integrated bottle body, a bottle neck formed by upward extension of the bottle body and an inclined supporting ring arranged on the bottle neck, the area of the side face, away from the bottle neck edge, of the supporting ring is smaller than that of the side face, close to the bottle neck edge, of the supporting ring, and an attaching part is arranged on the soft seal and used for enabling the soft seal to be attached to the supporting ring; a reinforcing assembly used for reinforcing the strength of the soft seal is further arranged on the soft seal, the soft seal can rapidly form a sealed space under high-pressure gas through the unique appearance and the unique mechanism of the soft seal, the gas is completely sealed in the bottle blank, and gas leakage and external pollutant entering are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle blowing machine sealing, in particular to a new type of special sealing structure for bottle blowing machine. Background Art

[0002] A bottle blowing machine refers to a machine that blows bottles. The simplest explanation is that it is a machine that can blow plastic granules or finished bottle embryos into bottles through certain process means.

[0003] In the bottle blowing machine, there is a part that blows and seals the bottle, which plays a role in the blow molding of the bottle embryo. Figure 1 As shown, the current sealing structure is a stainless steel part and a nylon seal arranged on the stainless steel part. Generally, the hardness of the nylon seal is insufficient because the air is blown inside the stainless steel part and the nylon seal is installed inside the stainless steel part. As the use time increases, the nylon is easily separated from the stainless steel part. At the same time, the material of nylon itself is relatively hard and will not deform. In this way, the nylon is easily broken, and the nylon seal needs to be replaced and adjusted frequently.

[0004] At the same time, when using nylon seal for sealing, a support ring is provided at the bottle mouth of the bottle blank. All bottle mouth support rings are generally inclined. The height of the support ring away from the edge of the bottle blank is lower than the height of the support ring close to the edge of the bottle blank. The side of the nylon seal close to the support ring is a plane. At this time, a new problem will arise. As long as there is an unbalanced contact on any side, air leakage may occur. In severe cases, the bottle mouth may be squeezed and deformed. In order to reduce the occurrence of the above situation.

[0005] At this time, a new device is needed to improve the blow sealing. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a new sealing structure specially used for bottle blowing machines.

[0007] The utility model provides a new sealing structure for a bottle blowing machine, comprising: a cylinder, a bottle blank, a bottle blowing mold, a sealing head, and a soft seal installed in the sealing head, wherein the bottle blank comprises an integral bottle body and a bottleneck formed by the bottle body extending upward, and a support ring arranged on the bottleneck and inclined, wherein the area of ​​the side surface of the support ring away from the bottleneck edge is smaller than the area of ​​the side surface of the support ring close to the bottleneck edge, the soft seal is provided with a close fitting component, and the close fitting component is used to make the soft seal close to the support ring; the soft seal is also provided with a reinforcing component for reinforcing the strength of the soft seal.

[0008] Preferably, the abutting component is a groove opened on the soft seal, the groove is located on the side of the soft seal close to the bottleneck, and the groove is in the shape of an annular groove.

[0009] Preferably, the side surface of the soft seal close to the support ring is an inclined surface, and the inclined surface is the reinforcing component.

[0010] Preferably, the area of ​​the side of the soft seal close to the support ring is larger than the area of ​​the side away from the support ring, and the soft seal is made of polyurethane.

[0011] Preferably, a mounting groove is provided in the sealing head, and an adapting block adapted to the mounting groove is provided on the soft seal.

[0012] Preferably, the soft seal is installed on the sealing head by interference fit.

[0013] Compared with the related art, the utility model provides a new sealing structure for bottle blowing machines, which has the following beneficial effects: the device uses a sealing member made of soft material, has a groove on the sealing member, and realizes a deformable sealing surface of the sealing member by filling and extruding, thereby achieving sealing.

[0014] Both the filling and extrusion methods can deform the sealing surface of the seal through the gas from the cylinder, so that it can cooperate better with the machine. In case the bottleneck is offset, the sealing surface of the seal can be deformed by inflating the groove, and it can be tightly attached to the support ring on the bottleneck to achieve a sealing effect.

[0015] The soft seal, with its unique shape and structure, can quickly form a sealed space under high-pressure gas, completely sealing the gas inside the preform to prevent gas leakage and the entry of external pollutants. Since the bottle blowing machine has to handle preforms of various shapes and sizes during the production process, this seal has the characteristics of flexible adaptability, thus achieving higher efficiency and higher output in production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the original nylon sealing structure;

[0017] Figure 2 It is a three-dimensional diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the bottle blank structure of the utility model;

[0019] Figure 4 It is a cross-sectional view of the utility model;

[0020] Figure 5 This is a schematic diagram of the soft sealing structure of the utility model;

[0021] Figure 6 It is a cross-sectional view of the soft sealing structure of the utility model.

[0022] Numbers in the figure: 1, bottle blank; 2, sealing head; 3, support ring; 4, soft seal; 5, groove; 6, adapter block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] See also Figures 2 to 6 The utility model provides a new sealing structure for a bottle blowing machine, comprising: a cylinder, a bottle blank 1, a bottle blowing mold, a sealing head 2, and a soft seal 4 installed in the sealing head 2. The bottle blank 1 comprises an integrated bottle body and a bottleneck formed by the bottle body extending upward, and a support ring 3 arranged on the bottleneck and inclined. The area of ​​the side of the support ring 3 away from the bottleneck edge is smaller than the area of ​​the side of the support ring 3 close to the bottleneck edge. The soft seal 4 is provided with a close-fitting component, which is used to make the soft seal 4 close to the support ring 3; the soft seal 4 is also provided with a reinforcing component for reinforcing the strength of the soft seal 4.

[0026] In this embodiment, when the bottle blowing machine is making a whole set of processes, the bottleneck and the heated plastic on the bottleneck are required as the workpiece. The bottle blowing mold fixes the whole workpiece, and then the sealing head 2 is connected with the whole workpiece, and then the bottle is blown through the cylinder, and then the workpiece will form the required bottle along the whole bottle blowing mold. At this time, in this process, the whole soft seal 4 is sealed to the workpiece by the close fitting parts. This sealing method has better sealing and applicability than the original hard seal, and improves the production quality of the product.

[0027] The close fitting component is a groove 5 formed on the soft seal 4. The groove 5 is located on the side of the soft seal 4 close to the bottleneck. The groove 5 is in the shape of an annular groove.

[0028] In this embodiment, the shape of the general bottleneck is circular, so the inner circle of the soft seal 4 is circular, and the entire bottleneck needs to be sealed. At this time, a groove 5 is provided on the soft seal 4, and the air flowing in the sealing head 2 will blow the workpiece into the bottle, and a part of the air comes into the groove 5 to open the entire groove 5, thereby realizing the extrusion and filling of the groove 5. At this time, the side of the soft seal 4 close to the support ring 3 will be close to the support ring 3, so that effective sealing can be performed. If the workpiece is misaligned with the sealing head 2, at this time, the soft seal 4 will also be tightly attached to the support ring 3 to avoid leakage of the blowing gas during blowing, thereby improving the production quality of the product.

[0029] The side surface of the soft seal 4 close to the support ring 3 is an inclined surface, and the inclined surface is a reinforcement component.

[0030] In this embodiment, because the soft seal 4 is sealed with the support ring 3 through the groove 5 when blowing the bottle, the soft seal 4 part needs to be deformed when in use. In this way, the strength of the soft seal 4 is not enough for frequent use. At this time, it is necessary to increase the strength of the soft seal 4 and add an inclined surface at the position where the soft seal 4 is often deformed. If the entire thickness is increased, a greater force is required to open the groove 5. Therefore, an inclined surface is designed. The inclined surface can firstly increase the strength of the soft seal 4 when sealing, and secondly, it can shorten the distance between the soft seal 4 and the support ring 3. When the soft seal 4 is in close contact, it can be in close contact with the support ring 3 more quickly to avoid leakage of the blowing gas when blowing the bottle.

[0031] The area of ​​the side surface of the soft seal 4 close to the support ring 3 is larger than the area of ​​the side surface away from the support ring 3 , and the soft seal 4 is made of polyurethane.

[0032] In this embodiment, the most preferred inclination mode of the soft seal 4 is that the inner circumferential surface of the lower part of the annular soft seal 4 extends from bottom to top and from inside to outside. The most preferred material of the soft seal 4 is polyurethane.

[0033] A mounting groove is provided in the sealing head 2, and an adapting block 6 adapted to the mounting groove is provided on the soft seal 4.

[0034] In this embodiment, the entire soft seal 4 can be better installed on the sealing head 2 through the installation groove and the adapter block 6.

[0035] The soft seal 4 is installed on the sealing head 2 by interference fit.

[0036] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new sealing structure for a bottle blowing machine, comprising: A cylinder, a bottle blank (1), a bottle blowing mold, a sealing head (2), and a soft seal (4) installed in the sealing head (2), wherein the bottle blank (1) comprises an integral bottle body and a bottleneck formed by the bottle body extending upward, and a support ring (3) arranged on the bottleneck and inclined, wherein the area of ​​the side surface of the support ring (3) away from the bottleneck edge is smaller than the area of ​​the side surface of the support ring (3) close to the bottleneck edge, and the soft seal (4) is provided with a close contact component, and the close contact component is used to make the soft seal (4) close to the support ring (3); The soft seal (4) is also provided with a reinforcement component for reinforcing the strength of the soft seal (4).

2. A new sealing structure for bottle blowing machine according to claim 1, characterized in that: The close fitting component is a groove (5) formed on the soft seal (4), and the groove (5) is located on the side of the soft seal (4) close to the bottleneck.

3. A new sealing structure for bottle blowing machine according to claim 2, characterized in that: The groove (5) is in the shape of an annular groove.

4. A new sealing structure for bottle blowing machine according to any one of claims 2-3, characterized in that: The side surface of the soft seal (4) close to the support ring (3) is an inclined surface, and the inclined surface is the reinforcement component.

5. A new sealing structure for bottle blowing machine according to claim 4, characterized in that: The area of ​​the side surface of the soft seal (4) close to the support ring (3) is larger than the area of ​​the side surface away from the support ring (3).

6. A new sealing structure for bottle blowing machine according to claim 5, characterized in that: The soft seal (4) is made of polyurethane.

7. The new sealing structure for bottle blowing machine according to claim 1 is characterized in that: A mounting groove is provided in the sealing head (2), and an adapting block (6) adapted to the mounting groove is provided on the soft seal (4).

8. The new sealing structure for bottle blowing machine according to claim 1 is characterized in that: The soft seal (4) is installed on the sealing head (2) by means of interference fit.

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