CN218928587U

CN218928587U - Bottle blowing mould with explosion-proof and leakage-proof functions

Info

Publication number: CN218928587U
Application number: CN202222264806.4U
Authority: CN
Inventors: 马清河; 武嘉林; 王建群; 黄芳军; 杨军
Original assignee: URUMQI HUAJIACHENG PHARMACEUTICAL PACKAGING CO Ltd
Current assignee: URUMQI HUAJIACHENG PHARMACEUTICAL PACKAGING CO Ltd
Priority date: 2022-08-28
Filing date: 2022-08-28
Publication date: 2023-04-28
Anticipated expiration: 2032-08-28

Abstract

The utility model relates to the technical field of bottle blowing dies, in particular to a bottle blowing die with an explosion-proof and leakage-proof function, which comprises a die body and a bottom die, wherein two bottle blowing cavities which are communicated up and down are arranged at left and right sides of the die body at intervals, a front cooling cavity is arranged in the die body corresponding to the front position of the bottle blowing cavities, a front water inlet hole and a front water return hole which can be communicated with the front cooling cavity are arranged at the front part of the die body, a rear cooling cavity is arranged in the die body corresponding to the rear position of the bottle blowing cavities, and a rear water inlet hole and a rear water return hole which can be communicated with the rear cooling cavity are arranged at the rear part of the die body. The bottle blowing device is reasonable and compact in structure and convenient to use, and the contact closing line of the bottom die and the bottle blowing cavity is round and smooth in transition by arranging the spherical chamfer, so that right-angle weak points are avoided; the cooling of the bottle blowing cavity is realized by arranging a front cooling cavity and a rear cooling cavity; through setting up the end cooling chamber, realize the contact surface cooling to die block upper end and bottle, have reliable, explosion-proof and leak protection's characteristics.

Description

Bottle blowing mould with explosion-proof and leakage-proof functions

Technical Field

The utility model relates to the technical field of bottle blowing production dies, in particular to a bottle blowing die with an explosion-proof and leakage-proof function.

Background

At present, a hollow plastic bottle is mainly manufactured by a two-step method of an injection molding machine and a bottle blowing machine, molten plastic is extruded by the injection molding machine, then the bottle blowing operation is performed between two half molds by the bottle blowing machine, and then the demolding operation is performed after the plastic bottle in the mold is cooled and molded, so that the plastic bottle with a specific shape is obtained. The existing 250ml vertical bag bottle blowing mould has the problems that the bottom mould is in right angle with the inner cavity contact closing line of the mould body, part of the vertical bag is blown out at the bottom or is worn in the track running process due to the right angle mould in the actual blowing production process, so that waste is increased, liquid leakage products appear and quality risks are uncontrollable.

Chinese patent publication No. CN 209320283U discloses a blow molding and shaping mold for plastic bottles, comprising: a pair of blowing design half mould that can open and shut, set up in the blowing design half mould with bottle body type chamber matched with bottle cooling chamber, its characterized in that: the plastic bottle is characterized in that a stepped bottle opening insert mounting notch with a small inner side and a large outer side is formed in the position, corresponding to the bottle opening of the plastic bottle, of the blow molding shaping half mold, bottle opening cooling holes communicated with the bottle cooling cavity are formed in two sides of the bottom of the bottle opening insert mounting notch respectively, a bottle opening half insert and an insert pressing plate are sequentially arranged in the bottle opening insert mounting notch from inside to outside, the insert pressing plate is fixed on the blow molding shaping half mold, bottle opening cooling cavities communicated with the corresponding bottle opening cooling holes are formed in two side end faces of the inner end of the bottle opening half insert respectively, a closed-loop sealing groove is formed in the periphery of the bottle opening cooling cavity by the bottle opening half insert, and a sealing ring is arranged in the sealing groove. The blow molding forming die of the plastic bottle has two problems: (1) a semi-closed structure, incapable of venting; and (2) the disassembly and assembly between the two half molds are complex.

Chinese patent publication No. CN 210362417U discloses a blow molding and shaping mold for plastic bottles, comprising: the utility model provides a bottle blowing mould of heat radiation structure is prevented in area which characterized in that: the bottle blowing machine comprises a bottle blowing die, wherein a top plate and a bottom plate are respectively arranged at the top and the bottom of the bottle blowing die, the bottle blowing die comprises a bottle blowing die I and a bottle blowing die II, bottle blank die grooves are respectively formed in the bottle blowing die I and the bottle blowing die II, liquid accumulation areas are formed in the bottoms of the bottle blank die grooves, clamping grooves I and clamping grooves II are respectively formed in the top and the bottom of the bottle blowing die I and the bottle blowing die II, strip-shaped grooves are symmetrically formed in the bottle blowing die I and located on the left and the right sides of the bottle blank die grooves, strip-shaped inserting blocks which are inserted in the strip-shaped grooves in an adapting mode are symmetrically arranged on the bottle blowing die II and located on the left and the right sides of the bottle blank die grooves, limiting grooves are formed in the four corners of the bottle blowing die II, and limiting inserting columns which are inserted in the limiting grooves in an adapting mode are arranged at the four corners of the bottle blowing die II; the bottom of the top plate is provided with a first annular insert block which can be inserted into the first clamping groove in an adaptive manner, the bottom plate is provided with a second annular insert block which can be inserted into the second clamping groove in an adaptive manner, and the middle of the bottom plate is provided with a stop block which can be inserted into the liquid accumulation area in an adaptive manner. The blow molding forming die of the plastic bottle has two problems: (1) the contact closing line of the bottom plate and the bottle blowing cavity is a right angle; and (2) the disassembly and assembly between the two half molds are complex.

Disclosure of Invention

The utility model provides a bottle blowing mould with an explosion-proof and leakage-proof function, which overcomes the defects of the prior art and can effectively solve the problems that the bottom mould of the existing upright bag bottle blowing mould is in right angle with the contact closing line of the inner cavity of the mould body, so that the upright bag is blown to be exploded or the bottom of the bag is weak and easy to break.

The technical scheme of the utility model is realized by the following measures: the bottle blowing mold with the explosion-proof and leakage-proof functions comprises a mold body and a bottom mold, wherein two bottle blowing cavities which are communicated up and down are arranged at left and right sides of the upper side of the mold body at intervals, a front cooling cavity is arranged in the mold body corresponding to the front position of the bottle blowing cavities, a front water inlet hole and a front water return hole which can be communicated with the front cooling cavity are formed in the front part of the mold body, a rear cooling cavity is arranged in the mold body corresponding to the rear position of the bottle blowing cavities, and a rear water inlet hole and a rear water return hole which can be communicated with the rear cooling cavity are formed in the rear part of the mold body; the upper end in bottle blowing chamber is the air inlet, the shape in bottle blowing chamber lower part and die block assorted, the lower extreme inboard in bottle blowing chamber is equipped with and is equipped with the die block, the die block middle part is equipped with the earthing rod hole that link up from top to bottom, be equipped with the end cooling chamber in the die block, the die block downside is equipped with end inlet port and end return water hole that can with end cooling chamber intercommunication, the die block is including from top to bottom fixed mounting together support portion, spacing portion and afterbody in proper order, the external diameter of spacing portion is greater than the external diameter of supporting the portion of leaning on, the external diameter of spacing portion is greater than the external diameter of afterbody, the outside of supporting portion upper end is equipped with the sphere chamfer.

The following are further optimizations and/or improvements to the above-described inventive solution:

the mold body may include a front mold and a rear mold detachably mounted together.

The front mold and the rear mold are detachably and fixedly installed together through the fixing bolts.

The mold also comprises a positioning protrusion, wherein two positioning grooves are formed in the rear side of the front mold at intervals up and down, the positioning protrusion positioned in the positioning groove at the corresponding position is arranged on the front side of the rear mold at the position corresponding to the positioning groove, and the positioning protrusion is hemispherical; the front mould and the rear mould corresponding to the left side and the right side of the positioning lug at the upper position are respectively provided with a front and a rear through bolt holes, the left lower parts of the front mould and the rear mould are respectively provided with a front and a rear through bolt holes, and the right lower parts of the front mould and the rear mould are respectively provided with a front and a rear through bolt holes.

The bottle blowing device is reasonable and compact in structure and convenient to use, and the contact closing line of the bottom die and the bottle blowing cavity is round and smooth in transition by arranging the spherical chamfer, so that right-angle weak points are avoided; the cooling of the bottle blowing cavity is realized by arranging a front cooling cavity and a rear cooling cavity; through setting up the end cooling chamber, realize the contact surface cooling to die block upper end and bottle, have reliable, explosion-proof and leak protection's characteristics.

Drawings

Fig. 1 is a schematic view of a cross-sectional front view of embodiments 1 to 4 of the present utility model.

The codes in the drawings are respectively: 1 is a bolt hole, 2 is a rear mould, 3 is a bottle blowing cavity, 4 is an air inlet, 5 is an abutting part, 6 is a limiting part, 7 is a tail part, 8 is a spherical chamfer, and 9 is a positioning protrusion.

Detailed Description

The present utility model is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present utility model.

In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The utility model is further described below with reference to examples and figures:

example 1: as shown in figure 1, the bottle blowing mould with the explosion-proof and leakage-proof functions comprises a mould body and a bottom mould, wherein two bottle blowing cavities 3 which are communicated up and down are arranged at left and right intervals on the upper side of the mould body, a front cooling cavity is arranged in the mould body corresponding to the front position of the bottle blowing cavities 3, a front water inlet hole and a front water return hole which can be communicated with the front cooling cavity are arranged at the front part of the mould body, a rear cooling cavity is arranged in the mould body corresponding to the rear position of the bottle blowing cavities 3, and a rear water inlet hole and a rear water return hole which can be communicated with the rear cooling cavity are arranged at the rear part of the mould body; the upper end of bottle blowing chamber 3 is air inlet 4, the shape and the die block assorted of bottle blowing chamber 3 lower part, the lower extreme inboard of bottle blowing chamber 3 is equipped with the die block, the die block middle part is equipped with the earthing rod hole that link up from top to bottom, be equipped with the end cooling chamber in the die block, the die block downside is equipped with end inlet port and end return water hole that can with end cooling chamber intercommunication, the die block is including by last fixed mounting portion 5 that lean on together down in proper order, spacing portion 6 and afterbody 7, the external diameter of spacing portion 6 is greater than the external diameter of portion 5 that lean on, the external diameter of spacing portion 6 is greater than the external diameter of afterbody 7, the outside of portion 5 upper ends of leaning on is equipped with spherical chamfer 8. In the use process, the spherical chamfer 8 is arranged, so that the contact closing line of the bottom die and the bottle blowing cavity 3 is a round angle and the transition is smooth, and the problems of blowing explosion and abrasion liquid leakage caused by forming right-angle weak points are avoided; the cooling of the bottle blowing cavity 3 is realized by arranging a front cooling cavity and a rear cooling cavity; through setting up the end cooling chamber, realize the contact surface cooling to die block upper end and bottle.

The bottle blowing mould with the explosion-proof and leakage-proof functions can be further optimized or/and improved according to actual needs:

example 2: as shown in fig. 1, the mold body includes front and rear molds 2 detachably mounted together. In the use process, the bottom die is convenient to install through the arrangement.

Example 3: as shown in fig. 1, the front mold and the rear mold 2 are detachably and fixedly mounted together by fixing bolts. In the use, through such setting, the quick assembly disassembly mould body of being convenient for.

Example 4: as shown in fig. 1, the mold further comprises a positioning protrusion 9, wherein two positioning grooves are formed in the back side of the front mold at intervals up and down, the front side of the rear mold 2 corresponding to the positions of the positioning grooves is provided with the positioning protrusion 9 positioned in the positioning groove at the corresponding position, and the positioning protrusion 9 is hemispherical; the front mould and the rear mould 2 corresponding to the left side and the right side of the positioning lug 9 at the upper position are respectively provided with a front and a rear through bolt holes 1, the left lower parts of the front mould and the rear mould 2 are respectively provided with a front and a rear through bolt holes 1, and the right lower parts of the front mould and the rear mould 2 are respectively provided with a front and a rear through bolt holes 1. In the use, through such setting, the quick assembly disassembly mould body of being convenient for.

The technical characteristics form the embodiment of the utility model, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.

Claims

1. The bottle blowing mold with the explosion-proof and leakage-proof functions is characterized by comprising a mold body and a bottom mold, wherein two bottle blowing cavities which are communicated up and down are arranged at left and right sides of the upper side of the mold body at intervals, a front cooling cavity is arranged in the mold body corresponding to the front position of the bottle blowing cavities, a front water inlet hole and a front water return hole which can be communicated with the front cooling cavity are arranged at the front part of the mold body, a rear cooling cavity is arranged in the mold body corresponding to the rear position of the bottle blowing cavities, and a rear water inlet hole and a rear water return hole which can be communicated with the rear cooling cavity are arranged at the rear part of the mold body; the upper end in bottle blowing chamber is the air inlet, the shape in bottle blowing chamber lower part and die block assorted, the lower extreme inboard in bottle blowing chamber is equipped with the die block, the die block middle part is equipped with the earthing rod hole that link up from top to bottom, be equipped with the end cooling chamber in the die block, the die block downside is equipped with end inlet port and end return water hole that can with end cooling chamber intercommunication, the die block is including from top to bottom fixed mounting in proper order the portion of leaning on together, spacing portion and afterbody, the external diameter of spacing portion is greater than the external diameter of leaning on the portion, the external diameter of spacing portion is greater than the external diameter of afterbody, the outside of leaning on portion upper end is equipped with the sphere chamfer.

2. The bottle blowing mold with explosion-proof and leakage-proof functions according to claim 1, wherein the mold body comprises a front mold and a rear mold detachably mounted together.

3. The bottle blowing mold with explosion-proof and leakage-proof functions according to claim 2, further comprising a fixing bolt, wherein the front mold and the rear mold are detachably and fixedly mounted together by the fixing bolt.

4. The bottle blowing mold with the explosion-proof and leakage-proof functions according to claim 3, further comprising a positioning protrusion, wherein two positioning grooves are formed in the back side of the front mold at intervals up and down, the positioning protrusion positioned in the positioning groove at the corresponding position is arranged on the front side of the back mold at the position corresponding to the positioning groove, and the positioning protrusion is hemispherical; the front mould and the rear mould corresponding to the left side and the right side of the positioning lug at the upper position are respectively provided with a front and a rear through bolt holes, the left lower parts of the front mould and the rear mould are respectively provided with a front and a rear through bolt holes, and the right lower parts of the front mould and the rear mould are respectively provided with a front and a rear through bolt holes.