CN112499941B - Glass mould for one-step forming bottle - Google Patents

Glass mould for one-step forming bottle Download PDF

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Publication number
CN112499941B
CN112499941B CN202011480504.XA CN202011480504A CN112499941B CN 112499941 B CN112499941 B CN 112499941B CN 202011480504 A CN202011480504 A CN 202011480504A CN 112499941 B CN112499941 B CN 112499941B
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China
Prior art keywords
cavity
punch
collar
die
choke plug
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CN202011480504.XA
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CN112499941A (en
Inventor
王永泉
苏谦
朱伟国
王春坊
陆佳明
毛建良
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Changshu Jianhua Mould Technology Co ltd
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Changshu Jianhua Mould Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00Blowing glass; Production of hollow glass articles
    • C03B9/30Details of blowing glass; Use of materials for the moulds
    • C03B9/34Glass-blowing moulds not otherwise provided for
    • C03B9/347Construction of the blank or blow mould

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

A glass mold for one-step molding of bottles belongs to the technical field of glass molds. The mouth ring is arranged in the mouth die and is positioned below the mouth die, a mouth ring punch moving cavity is arranged in the center of the mouth ring, the punch is matched with the mouth ring, the punch is provided with a cooler containing cavity, and the cooler is matched with the punch; the mouth ring is provided with a mouth cavity gas exhaust hole. The processing and manufacturing difficulty of the choke plug is reduced; the cooling speed of the choke plug is increased, the bottle bottom forming speed of the glass melt of the bottle bottom forming head-to-mouth die cavity is increased, and the forming effect is guaranteed.

Description

Glass mould for one-step forming bottle
Technical Field
The invention belongs to the technical field of glass molds, and particularly relates to a glass mold for one-step molding of a bottle.
Background
As is known in the art, a glass mold is divided into a blank mold and a molding mold, in which a glass melt in a molten state is introduced into the blank mold, a glass container preform (conventionally referred to as a "blank" in the art) is molded in the blank mold, and the blank is transferred to the molding mold by a robot of a line and row machine and blow molded. As can be seen from the foregoing description, two sets of molds, the above described blank mold and the molding mold, are required for each glass container to be molded. This form-molding, i.e., forming, has long been accepted by the bottling industry, and is especially accepted by convention as the requisite process. However, there are at least the following disadvantages objectively: firstly, two processes from the forming of an initial product to the forming of a finished product are required, so that the process is relatively long, and the forming efficiency is influenced; secondly, because two sets of moulds, namely a primary mould and a molding mould, need to be used, the using amount of the moulds is large, and the equipment cost for manufacturing the bottle is increased; thirdly, because of the staged forming, the energy consumption is large, and the method is not suitable for the energy-saving and economical spirit advocated by the whole society at present; fourthly, the efficiency of the line-row machine of the bottle-making manufacturer is obviously influenced; fifthly, for cosmetic bottles having four edges (the cross-sectional shape of the bottle body is rectangular) and a relatively thick bottom, it is difficult to form a bottle body having the ideal edge line portion profile and smooth and clean bottom surface.
Chinese patent CN209292200U recommends "a glass mold for one-step forming bottle making process", which can substantially eliminate the above-mentioned disadvantages of the applicant because it can form a glass container such as the cosmetic bottle mentioned above by using a set of molds, but the following disadvantages still exist: firstly, it can be seen from the structure shown in the figure of the patent that the choke plug is provided with an air passage which is communicated with the cavity, the function of the air passage is not mentioned in the specification, but the air passage is used for air-entrapping according to the common general knowledge, the so-called air-entrapping is to introduce compressed air into the mold, to force the glass frit to enter the cavity downwards and be embedded sufficiently, so as to make the bottle head, the air-entrapping is finished, and the air-entrapping head is used as the bottom of the primary mold to participate in the air-blowing work, however, for cosmetic bottles, the choke plug is not necessary to have the air-entrapping function, as long as the requirement of the bottom molding of the bottle body is met. Therefore, the arrangement of the air-breathing through hole on the choke plug can increase the complexity of the choke plug structure on one hand and increase the processing difficulty of the choke plug on the other hand; secondly, due to the structural design, when the punch is displaced upward during the forming process, the air generated in the mold cavity cannot be exhausted to the outside, so the bottle forming effect such as appearance and surface finish and the like are influenced to a certain extent. In view of the foregoing, there is a need for further improvement, and the technical solutions described below are made in this context.
Disclosure of Invention
The invention aims to provide a glass mold for one-step molding of a bottle, which is beneficial to simplifying a choke plug structure, is convenient to manufacture, and is beneficial to exhausting gas in a mold cavity to the outside so as to improve the molding effect of the bottle.
The object of the present invention is achieved by a glass mold for one-shot molding of a bottle, comprising a bulkhead, a mouth ring, a punch, a cooler, and a mouth mold facing toward one side of a mold clamping surface in use and having a mouth mold cavity, the bulkhead being located above the mouth mold and fitted to the mouth mold, the mouth ring being disposed in the mouth mold and located below the mouth mold, the center of the mouth ring constituting a mouth ring punch movement cavity, the punch being fitted to the mouth ring in a vertically movable manner at a position corresponding to the mouth ring punch movement cavity, and the punch having a cooler accommodating cavity, the cooler being fitted to the punch at a position corresponding to the cooler accommodating cavity, characterized in that a bulkhead fitting cavity is formed at the mouth mold and at a position corresponding to the upper portion of the mouth mold cavity, a bulkhead bottle bottom molding head fitting hole being formed at a central position of a bottom wall of the bulkhead fitting cavity, the choke plug bottle bottom forming head matching hole is communicated with the neck mold cavity, a bottle bottom forming head protruding out of the lower surface of the choke plug is formed on the lower surface of the choke plug and at a position corresponding to the choke plug bottle bottom forming head matching hole, the bottle bottom forming head is matched with the choke plug bottle bottom forming head matching hole, and the lower part of the choke plug is matched with the choke plug matching cavity; and die cavity gas exhaust holes communicated with the die cavity punch moving cavity of the die ring are respectively formed in the die ring and in the positions facing each other.
In a particular embodiment of the invention, the bulkhead has the shape of a truncated cone and extends on the outer wall of the upper part of the bulkhead a pair of stop flanges spaced 180 ° from each other around the circumferential direction of the upper part of the bulkhead.
In another embodiment of the invention, a choke plug clamping groove is formed between the lower part of the pair of limiting flanges and the middle part of the choke plug.
In another embodiment of the present invention, a bulkhead cooling hole is formed at the center of the bulkhead, and the bulkhead cooling hole extends downward to the upper surface of the bottle bottom forming head.
In another embodiment of the present invention, the mating hole of the bottom forming head of the choke plug is a rectangular hole, the shape of the bottom forming head is rectangular, and the size of the bottom forming head is matched with the size of the mating hole of the bottom forming head of the choke plug.
In yet another embodiment of the present invention, a neck finish thread forming cavity is formed in the neck finish at a position below the neck finish thread forming cavity, a neck ring mating cavity is formed at a position below the neck finish thread forming cavity, and a punch stepped cavity is formed at a position below the neck ring mating cavity, the neck ring mating with the neck ring mating cavity, and a lower portion of the punch mating with the punch stepped cavity.
In a more specific embodiment of the present invention, the mouth ring fitting cavity comprises a mouth ring body fitting cavity and a mouth ring step cavity, a mouth ring step is formed on one upward side of the mouth ring and around the periphery of the mouth ring punch moving cavity, the mouth ring is fitted with the mouth ring body fitting cavity, and the mouth ring step is fitted with the mouth ring step cavity.
In a further embodiment of the invention, a punch step is formed on the lower outer wall of the punch and around the circumference of the punch, which punch step cooperates with the punch step cavity.
In a still more particular embodiment of the invention, the upper profile of the punch is in the shape of a bullet.
In yet another specific embodiment of the present invention, the cooler has a cooler cavity and the upper portion of the cooler is in the shape of a bullet.
One of the technical effects of the technical scheme provided by the invention is that the choke plug is abandoned with the gas-trapping hole, so that the processing and manufacturing difficulty of the choke plug is reduced; secondly, because the central position of the choke plug is provided with the choke plug cooling hole, the cooling speed of the choke plug is favorably improved, the bottle bottom forming speed of the glass melt of the bottle bottom forming head butt-joint die cavity is favorably improved, and the forming effect is ensured; thirdly, because the mouth ring is provided with the mouth cavity gas exhaust hole, the gas in the mouth cavity can be exhausted to the outside through the mouth cavity gas exhaust hole when the punch moves upwards, which is beneficial to obviously transmitting the forming effect to the bottle, avoiding the deformation of the bottle and eliminating bubbles so as to ensure the surface finish.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention.
Figure 2 is a cross-sectional view of the bulkhead, the mouth ring, the ram, and the cooler shown in figure 1.
Detailed Description
In order to clearly understand the technical spirit and the advantages of the present invention, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in material, should be considered as the technical scope of the present invention.
In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of fig. 1, and thus, it should not be understood as a particular limitation to the technical solution provided by the present invention.
Referring to fig. 1 and 2, there are shown a bulkhead 1, a collar 2, a punch 3, a cooler 4 and a die 5 opposed to one side of a die surface 51 in use and having a die cavity 52, the bulkhead 1 being located above the die 5 and fitted with the die 5, the collar 2 being disposed in the die 5 and located below the die 5, the collar 2 being centrally formed with a collar punch moving cavity 21, the punch 3 being fitted with the collar 2 so as to be movable up and down at a position corresponding to the collar punch moving cavity 21, and the punch 3 having a cooler accommodating cavity 31, the cooler 4 being fitted with the punch 3 at a position corresponding to the cooler accommodating cavity 31.
The technical key points of the technical scheme provided by the invention are as follows: a choke plug matching cavity 53 is formed on the die 5 and at a position corresponding to the upper part of the choke cavity 52, a choke plug bottom forming plug matching hole 531 is formed at the central position of the bottom wall of the choke plug matching cavity 53, the choke plug bottom forming plug matching hole 531 is communicated with the choke cavity 52, a bottom forming plug 11 protruding from the lower surface (namely the lower plane) of the choke plug 1 is formed at the lower surface of the choke plug 1 and at a position corresponding to the choke plug bottom forming plug matching hole 531, the bottom forming plug 11 is matched with the choke plug bottom forming plug matching hole 531, and the lower part of the choke plug 1 is matched with the choke plug matching cavity 53; a die cavity gas discharge hole 22 communicating with the die ring punch moving cavity 21 is formed in each of the die rings 2 at positions facing each other.
The aforesaid bulkhead 1 has the shape of a truncated cone and extends on the outer wall of the upper part of the bulkhead 1 a pair of stop flanges 12, which stop flanges 12 are spaced from each other by 180 ° around the circumferential direction of the upper part of the bulkhead 1.
A choke plug clamping concave channel 13 is formed between the lower part of the pair of limit flanges 12 and the outer wall of the middle part of the choke plug 1.
A bulkhead cooling hole 14 is formed at the center of the bulkhead 1, and the bulkhead cooling hole 14 extends downward to the upper surface of the bottle bottom forming head 11 (shown in FIG. 2).
The choke plug bottom forming head fitting hole 531 is a rectangular hole, the bottom forming head 11 is rectangular, and the size of the bottom forming head 11 is matched with the size of the choke plug bottom forming head fitting hole 531. In this embodiment, the rectangle is a rectangle.
Continuing to refer to fig. 1 and 2, a neck finish thread forming cavity 54 is formed in the neck finish 5 at a position below the neck finish thread forming cavity 52, a neck ring engaging cavity 55 is formed at a position below the neck finish thread forming cavity 54, and a punch step cavity 56 is formed at a position below the neck ring engaging cavity 55, the neck ring 2 engages with the neck ring engaging cavity 55, and the lower portion of the punch 3 engages with the punch step cavity 56.
As shown in fig. 1, the above-mentioned lip ring fitting cavity 55 includes a lip ring body fitting cavity 551 and a lip ring step cavity 552, a lip ring step 23 is formed on the upward-facing side of the above-mentioned lip ring 2 and around the periphery of the above-mentioned lip ring punch moving cavity 21, the lip ring 2 is fitted to the lip ring body fitting cavity 551, and the lip ring step 23 is fitted to the lip ring step cavity 552.
A punch step 32 is formed on the lower outer wall of the punch 3 and around the circumferential direction of the punch 3, and the punch step 32 is engaged with the punch step cavity 56.
In the present embodiment, the upper outer shape of the punch 3 is in the shape of a bullet; the cooler 4 has a cooler chamber 41 and the upper part of the cooler 4 is shaped like a bullet.
Fig. 1 shows the above-mentioned dies 5 each having a die cavity 52, which face each other on the side of the die parting plane 51 in use, and the two dies 5 are combined to form a pair of dies, that is, a pair of die halves (conventionally referred to as "male and female dies") are fitted to each other to form a set of dies. After the molten glass gob enters the cavity 52, the bottom of the bottle is molded by the bulkhead 1, the body of the bottle is molded by the cavity 52, and the mouth thread is molded at the mouth of the bottle by the mouth thread molding cavity 54. In the above-described process of forming the glass melt into a bottle, the lower punch 3 is moved by being displaced up and down under the guide of the mouth ring 2, that is, the forming of the bottle is completed by the up and down displacement of the punch 3, and in the above-described process, the cooler 4 is engaged with the punch 3, by which the punch 3 is cooled (generally, blow cooling). During the upward movement of the punch 3, the air in the die cavity 22 sequentially follows between the finish thread forming cavity 54 and the outer wall of the punch 3 and the inner wall of the finish step 23, i.e., the inner wall of the finish punch moving cavity 21 and the outer wall of the punch 3, to enter the die cavity gas discharge hole 22 and be discharged to the outside through the die cavity gas discharge hole 22. After the molding of the bottle is completed, the pair of mouth molds 5 are separated, and the bottle is removed by a manipulator (bottle removing pincers) of the line machine, and the process is repeated.
From the above description, the present invention only needs one set of mold, i.e. neck mold, to complete the processing of the bottle, and fully honors the technical effects described in the above technical effect column of the applicant.
In conclusion, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the invention task and truly realizes the technical effects of the applicant in the technical effect column.

Claims (10)

1. A glass mold for one-shot molding of bottles, comprising a bulkhead (1), a collar (2), a punch (3), a cooler (4) and a die (5) which is opposed to a side of a die clamping surface (51) in use and has a die cavity (52), the bulkhead (1) being located above the die (5) and fitted with the die (5), the collar (2) being disposed inside the die (5) and below the die (5), the collar (2) being centrally formed with a collar punch moving cavity (21), the punch (3) being fitted with the collar (2) so as to move up and down at a position corresponding to the collar punch moving cavity (21), and the punch (3) having a cooler receiving cavity (31), the cooler (4) being fitted with the punch (3) at a position corresponding to the cooler receiving cavity (31), characterized in that, a choke plug matching cavity (53) is formed on the mouth die (5) and at a position corresponding to the upper part of the mouth die cavity (52), a choke plug bottle bottom forming head matching hole (531) is formed at the central position of the bottom wall of the choke plug matching cavity (53), the choke plug bottle bottom forming head matching hole (531) is communicated with the mouth die cavity (52), a bottle bottom forming head (11) protruding out of the lower surface of the choke plug (1) is formed at the lower surface of the choke plug (1) and at a position corresponding to the choke plug bottle bottom forming head matching hole (531), the bottle bottom forming head (11) is matched with the choke plug bottle bottom forming head matching hole (531), and the lower part of the choke plug (1) is matched with the choke plug matching cavity (53); and die cavity gas exhaust holes (22) communicated with the die ring punch moving cavity (21) are respectively formed in the die rings (2) and in positions facing each other.
2. The glass mold for one-shot forming of bottle as claimed in claim 1, characterized in that said bulkhead (1) is in the shape of a truncated cone and a pair of stop flanges (12) extend on the outer wall of the upper portion of the bulkhead (1), the stop flanges (12) being spaced apart from each other by 180 ° around the circumferential direction of the upper portion of the bulkhead (1).
3. The glass mold for one-shot forming of bottle as claimed in claim 2, wherein a choke plug holding concave channel (13) is formed between the lower part of the pair of position-limiting flanges (12) and the middle part of the choke plug (1).
4. The glass mold for one-step molding of bottle as claimed in claim 1, wherein a bulkhead cooling hole (14) is formed at the center of the bulkhead (1), the bulkhead cooling hole (14) extending downward to the upper surface of the bottle bottom molding head (11).
5. The glass mold for one-shot forming of bottle as claimed in claim 1, wherein the bulkhead bottom forming head fitting hole (531) is a rectangular hole, the bottom forming head (11) is rectangular, and the size of the bottom forming head (11) is matched with the size of the bulkhead bottom forming head fitting hole (531).
6. The glass mold for one-shot molding of bottles as claimed in claim 1, wherein a neck finish thread forming cavity (54) is formed in said neck mold (5) at a position below said neck finish cavity (52), a neck ring engaging cavity (55) is formed at a position below said neck finish thread forming cavity (54), and a punch step cavity (56) is formed at a position below said neck ring engaging cavity (55), said neck ring (2) is engaged with said neck ring engaging cavity (55), and a lower portion of said punch (3) is engaged with said punch step cavity (56).
7. The glass mold for one-shot forming of bottle according to claim 6, wherein said collar engaging cavity (55) comprises a collar body engaging cavity (551) and a collar step cavity (552), a collar step (23) is formed on the upward facing side of said collar (2) and around said collar punch moving cavity (21), the collar (2) is engaged with the collar body engaging cavity (551), and the collar step (23) is engaged with the collar step cavity (552).
8. A glass mold for one-shot molding of bottles according to claim 6 characterized in that a punch step (32) is formed on the lower outer wall of said punch (3) and around the circumference of the punch (3), the punch step (32) cooperating with said punch step cavity (56).
9. The glass mold for one-shot molding of bottles as claimed in claim 1 or 6, characterized in that the upper profile of said punch (3) is in the shape of a bullet.
10. Glass mold for the single-shot forming of bottles according to claim 1, characterized in that said cooler (4) has a cooler cavity (41) and the upper part of the cooler (4) is in the shape of a bullet.
CN202011480504.XA 2020-12-15 2020-12-15 Glass mould for one-step forming bottle Active CN112499941B (en)

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CN112499941B true CN112499941B (en) 2022-05-27

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014019011A (en) * 2012-07-17 2014-02-03 Punch Industry Co Ltd Molding die of preform and cooling method of preform
CN104176909A (en) * 2014-08-13 2014-12-03 常熟建华模具科技股份有限公司 Choke plug structure for primary mold of glass mold
CN206127105U (en) * 2016-10-06 2017-04-26 景德镇陶瓷大学 Parison mold utensil that glass beverage bottle was used at bottom of production deep recess
CN209292200U (en) * 2018-11-23 2019-08-23 苏州东海玻璃模具有限公司 A kind of glass mold for one-pass molding bottle producing process
CN211199009U (en) * 2019-12-11 2020-08-07 常熟市瑞峰模具有限公司 Eye cream bottle integrated into one piece mould

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030101767A1 (en) * 2001-12-05 2003-06-05 Hyre Matthew R. Glass container forming machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014019011A (en) * 2012-07-17 2014-02-03 Punch Industry Co Ltd Molding die of preform and cooling method of preform
CN104176909A (en) * 2014-08-13 2014-12-03 常熟建华模具科技股份有限公司 Choke plug structure for primary mold of glass mold
CN206127105U (en) * 2016-10-06 2017-04-26 景德镇陶瓷大学 Parison mold utensil that glass beverage bottle was used at bottom of production deep recess
CN209292200U (en) * 2018-11-23 2019-08-23 苏州东海玻璃模具有限公司 A kind of glass mold for one-pass molding bottle producing process
CN211199009U (en) * 2019-12-11 2020-08-07 常熟市瑞峰模具有限公司 Eye cream bottle integrated into one piece mould

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