CN219338364U

CN219338364U - Injection mold of ejection structure of forced-release type bottle cap injection molding machine

Info

Publication number: CN219338364U
Application number: CN202222729835.3U
Authority: CN
Inventors: 何海兵
Original assignee: Zhejiang Jinmatai Technology Co ltd
Current assignee: Zhejiang Jinmatai Technology Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-07-14
Anticipated expiration: 2032-10-17

Abstract

The utility model provides an injection mold of an ejection structure of a forced-release bottle cap injection molding machine. The utility model comprises a movable mould and a fixed mould, wherein a cavity is arranged on the fixed mould, the movable mould comprises a mould base, a stripper plate, a main push rod and more than two molding columns, the stripper plate is positioned on one side of the mould base close to the fixed mould, a through hole is arranged on the stripper plate, one end of the molding column is arranged on the mould base, the other end of the molding column penetrates through the through hole and protrudes out of the stripper plate to be close to the side wall of the fixed mould, a mold core is formed at the end of the molding column close to the fixed mould, the main push rod penetrates through the mould base, one end of the main push rod is connected with the stripper plate, and a bottle cap is injection molded between the mold core and the cavity. Firstly, the injection mold has long service life and is convenient to overhaul; when overhauling, only the stripper plate needs to be disassembled, so that the overhauling is convenient; secondly, the die pin structure is canceled by adopting the structural form of the stripper plate and the main push rod, the structural compactness is high, and the size of the whole die is effectively controlled.

Description

Injection mold of ejection structure of forced-release type bottle cap injection molding machine

Technical Field

The utility model relates to an injection mold, in particular to an injection mold with an ejection structure of a forced-release bottle cap injection molding machine.

Background

The existing structure for injection molding bottle caps, such as a bottle cap injection mold of the Chinese utility model patent with the publication number of CN207465785U, mainly comprises a fixed mold, a movable mold plate, mold legs, a bottom plate and a top plate arranged between the two mold legs, wherein the top plate is connected with a top rod; the feeding bottle cap is injection molded between the movable die and the fixed die, and after the movable die and the fixed die are separated, the top plate pushes the ejector rod to move, and the ejector rod pushes the injection molded feeding bottle cap to be separated from the movable die.

The existing injection mold is only used for injection molding of a single bottle cap of a feeding bottle, if production efficiency is required to be improved, a plurality of cavities and cores are required to be arranged in the single injection mold, a plurality of ejector rods are also required to be arranged, the ejector rods are easy to wear in an ejector rod ejection mode, once the ejector rods wear, the whole injection mold is required to be disassembled and overhauled, and the service life is not long and overhauling is difficult.

Disclosure of Invention

In view of the above, the utility model aims to provide an injection mold with a strong-release type bottle cap injection molding machine ejection structure, which has the advantages of long service life and convenient maintenance.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the utility model provides a take off formula bottle lid injection molding machine ejection structure injection mold by force, includes movable mould, cover half, be equipped with the die cavity on the cover half, the movable mould includes the die holder, takes off flitch, main push rod, two or more shaping posts, take off the flitch and be located the die holder and be close to in one side of cover half, take off be equipped with the through-hole on the flitch, shaping post one end install in on the die holder, the shaping post other end pass the through-hole and protrude in the take off the template is close to the lateral wall of cover half, the shaping post is close to the tip formation core in the cover half, main push rod runs through in the die holder, main push rod one end connect in take off the flitch, bottle lid injection molding in between the core with the die cavity.

Through the technical scheme, firstly, the bottle caps are injection molded between the mold core and the mold cavity, the movable mold and the fixed mold are mutually separated, the injection molding machine pushes the main push rod to move towards the direction of the fixed mold, meanwhile, the main push rod drives the stripper plate to move, the stripper plate can simultaneously push a plurality of bottle caps positioned on the mold core to move, and the injection molded bottle caps can fall off from the mold core to realize demolding; in the demolding process, the plate surface structure of the stripper plate is fully utilized, so that the bottle caps on all the cores can be lifted up at one time, the effective contact area between the bottle caps and the stripper plate is increased, and the service life is long; when overhauling, only the stripper plate needs to be disassembled, so that the overhauling is convenient; secondly, the die pin structure is canceled by adopting the structural form of the stripper plate and the main push rod, the structural compactness is high, and the size of the whole die is effectively controlled.

Preferably, the end part of the main push rod is connected with the stripper plate through a connecting bolt.

Through above-mentioned technical scheme, the dismouting between main push rod and the stripper plate is more convenient.

Preferably, the diameter of the through hole gradually decreases along the side close to the fixed die, and the shape of the molding column is matched with the through hole.

Through above-mentioned technical scheme, the cooperation is inseparabler between through-hole and the shaping post, and installation stability is high.

Preferably, the device further comprises an auxiliary push rod, wherein the auxiliary push rod penetrates through the die holder, and the end part of the auxiliary push rod abuts against the stripper plate.

Through the technical scheme, when the bottle cap is required to be ejected out of the mold core, besides the main push rod is required to push the stripper plate to move, the auxiliary push rod can also generate ejection force on the stripper plate, so that the driving stability of the stripper plate is improved, and the discharging stability is high.

Preferably, the end part of the auxiliary push rod, which is away from the stripper plate, is provided with a large end, and a push rod hole which is in sliding fit with the large end is arranged in the die holder.

Through above-mentioned technical scheme, the diameter of big end is greater than the pole footpath of vice push rod to make between vice push rod and the movable mould form the cooperation position of sliding of two sections different diameters size, sliding stability is higher.

Preferably, the core and the molding column are arranged in a split mode, and the core is connected with the end part of the molding column in a threaded mode.

Through the technical scheme, on one hand, the disassembly and assembly convenience of the mold core is high, and the mold core is convenient to overhaul; on the other hand, the mold cores of different types can be replaced, so that different types of bottle caps can be injection molded, and the use is more flexible.

Preferably, a groove is formed in the plate wall, close to the fixed die, of the stripper plate, a mounting plate is arranged on the core, and the mounting plate is matched in the groove.

According to the technical scheme, on one hand, the matching range between the mold core and the mold cavity is enlarged, the fixed mold with the larger mold cavity and the mounting plate can be matched with each other, the bottle cap with the larger model can be injection molded, and the bottle cap with the larger model can be flexibly injection molded; on the other hand, after the core is matched with the forming column, the mounting plate can be matched with the groove wall of the groove, and the matching tightness of the core and the forming column can be improved.

Preferably, the groove is an annular groove body, and the mounting sheet is an annular sheet.

Through above-mentioned technical scheme, in-process that core and shaping post mutually support, the core needs to take place circumference rotation, and annular mounting plate can take place smooth and easy cooperation with annular recess this moment.

Preferably, a spring is arranged between the mounting piece and the groove.

Through above-mentioned technical scheme, in-process that core and shaping post mutually support, the spring can produce the elasticity effect to the installation piece, and the screw-thread fit between core and the shaping post is compacter.

Drawings

FIG. 1 is a schematic exploded view of a first embodiment;

FIG. 2 is a schematic top view of a movable mold according to the first embodiment;

FIG. 3 is a cross-sectional view of section A-A of FIG. 2;

FIG. 4 is a section B-B of FIG. 2;

fig. 5 is a schematic diagram of a partial cross-sectional structure of a movable mold in the second embodiment.

Reference numerals: 1. a fixed mold; 11. a cavity; 2. a movable mold; 21. a die holder; 22. a stripper plate; 221. a through hole; 3. a main push rod; 4. forming a column; 41. a core; 5. a connecting bolt; 6. an auxiliary push rod; 61. a large end; 7. a pushrod hole; 8. a groove; 9. a mounting piece; 10. and (3) a spring.

Detailed Description

The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.

Embodiment one:

an injection mold with an ejection structure of a forced-release bottle cap injection molding machine, which is shown in fig. 1, comprises a movable mold 2 and a fixed mold 1.

Referring to fig. 1, a cavity 11 is provided on the stationary mold 1. The number of the medium-sized cavities 11 in this embodiment is four.

Referring to fig. 1, the movable mold 2 includes a mold base 21, a stripper plate 22, a main push rod 3, and more than two molding columns 4.

Referring to fig. 1 and 4, the stripper plate 22 is located on a side of the die holder 21 adjacent to the stationary die 1. The stripper plate 22 is provided with a through hole 221, and the diameter of the through hole 221 gradually decreases toward the side closer to the fixed mold 1. The shape of the molding post 4 is matched with the through hole 221, one end of the molding post 4 is installed on the die holder 21, and the other end of the molding post 4 passes through the through hole 221 and protrudes from the stripper plate close to the side wall of the fixed die 1.

Referring to fig. 1 and 4, a core 41 is formed at an end of the molding column 4 near the fixed mold 1. In the injection molding process, the core 41 is matched with the cavity 11, and the bottle cap can be injection molded between the core 41 and the cavity 11.

Referring to fig. 2 and 3, the main push rod 3 penetrates through the die holder 21, and one end of the main push rod 3 is connected to the stripper plate 22. In order to improve the convenience of disassembly between the main push rod 3 and the stripper plate 22, the end part of the main push rod 3 is connected with the stripper plate 22 through a connecting bolt 5.

Referring to fig. 2 and 3, the device further includes a secondary push rod 6, the secondary push rod 6 penetrates through the die holder 21, and an end of the secondary push rod 6 abuts against the stripper plate 22. The injection molding machine can push the main push rod 3 and the auxiliary push rod 6 simultaneously, and the main push rod 3 and the auxiliary push rod 6 push the stripper plate to move simultaneously.

Referring to fig. 3, a large end 61 is provided at the end of the auxiliary push rod 6 facing away from the stripper plate 22, the diameter of the large end 61 is larger than the rod diameter of the auxiliary push rod 6, and a push rod hole 7 in sliding fit with the large end 61 is provided in the die holder 21.

In the actual demolding process, the bottle cap is molded between the core 41 and the cavity 11 by injection molding, the movable mold 2 and the fixed mold 1 are separated from each other, the injection molding machine pushes the main push rod 3 and the auxiliary push rod 6 to move towards the fixed mold 1, meanwhile, the main push rod 3 and the auxiliary push rod 6 drive the stripper plate 22 to move, the stripper plate 22 can push a plurality of bottle caps positioned on the core 41 to move at the same time, and the injection molded bottle caps can fall off from the core 41 to realize demolding.

Embodiment two: the point of difference from the first embodiment is that:

referring to fig. 4, a split type arrangement is adopted between the core 41 and the molding column 4, and the core 41 is screwed to the end of the molding column 4.

The stripper plate 22 is provided with a groove 8 on the plate wall close to the fixed die 1, and the groove 8 is an annular groove body.

The core 41 is provided with a mounting plate 9, the mounting plate 9 is an annular plate, and the mounting plate 9 is matched in the groove 8.

A spring 10 is arranged between the mounting plate 9 and the groove 8. The bottle cap of a specified model can be injection molded by replacing the mold cores 41 of different sizes and the fixed mold 1 with the corresponding size cavities 11.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims

1. The utility model provides a take off formula bottle lid injection molding machine ejection structure injection mold by force, includes movable mould (2), cover half (1), be equipped with die cavity (11), characterized by on cover half (1):

the movable mold (2) comprises a mold base (21), a stripper plate (22), a main push rod (3) and more than two molding columns (4), wherein the stripper plate (22) is positioned on one side, close to the fixed mold (1), of the mold base (21), through holes (221) are formed in the stripper plate (22), one end of each molding column (4) is installed on the mold base (21), the other end of each molding column (4) penetrates through the through holes (221) and protrudes out of the stripper plate (22) to be close to the side wall of the fixed mold (1), cores (41) are formed at the end, close to the fixed mold (1), of each molding column (4), the main push rod (3) penetrates through the mold base (21), one end of each main push rod (3) is connected to the stripper plate (22), and a bottle cap is formed between the cores (41) and the cavity (11) in an injection molding mode.

2. The injection mold of the ejection structure of the forced release type bottle cap injection molding machine as claimed in claim 1, wherein the injection mold is characterized in that: the end part of the main push rod (3) is connected with the stripper plate (22) through a connecting bolt (5).

3. The injection mold of the ejection structure of the forced release type bottle cap injection molding machine as claimed in claim 1, wherein the injection mold is characterized in that: the diameter of the through hole (221) gradually decreases along the side close to the fixed die (1), and the shape of the forming column (4) is matched with the through hole (221).

4. An injection mold for an ejector structure of a forced release bottle cap injection molding machine according to any one of claims 1 to 3, characterized in that: the novel material removing device is characterized by further comprising an auxiliary push rod (6), wherein the auxiliary push rod (6) penetrates through the die holder (21), and the end part of the auxiliary push rod (6) abuts against the material removing plate (22).

5. The injection mold of the ejection structure of the forced release type bottle cap injection molding machine, according to claim 4, is characterized in that: the end part of the auxiliary push rod (6) deviating from the stripper plate (22) is provided with a large end (61), and a push rod hole (7) which is mutually matched with the large end (61) in a sliding manner is arranged in the die holder (21).

6. An injection mold for an ejector structure of a forced release bottle cap injection molding machine according to any one of claims 1 to 3, characterized in that: the mold core (41) and the molding column (4) are arranged in a split mode, and the mold core (41) is connected with the end portion of the molding column (4) in a threaded mode.

7. The injection mold of the ejection structure of the forced release type bottle cap injection molding machine, which is characterized in that: the stripper plate (22) is provided with a groove (8) on the plate wall close to the fixed die (1), the mold core (41) is provided with a mounting plate (9), and the mounting plate (9) is matched in the groove (8).

8. The injection mold of the ejection structure of the forced release type bottle cap injection molding machine, which is characterized in that: the groove (8) is an annular groove body, and the mounting sheet (9) is an annular sheet.

9. The injection mold of the ejection structure of the forced release type bottle cap injection molding machine, which is characterized in that: a spring (10) is arranged between the mounting piece (9) and the groove (8).