CN204222108U

CN204222108U - Mold opening and closing mechanism based on PP infusion bottle blank mold

Info

Publication number: CN204222108U
Application number: CN201420714800.5U
Authority: CN
Inventors: 邓茂林; 刘文军; 谭鸿波; 罗成鑫; 何颖
Original assignee: Sichuan Kelun Pharmaceutical Co Ltd
Current assignee: Sichuan Kelun Pharmaceutical Co Ltd
Priority date: 2014-11-25
Filing date: 2014-11-25
Publication date: 2015-03-25
Anticipated expiration: 2024-11-25

Abstract

The utility model relates to a mould mechanism that opens and shuts based on PP infusion bottle base mould, it includes inner core (2), outer core (3), runner mould benevolence (4), compound die plate (5) and pressurized oil jar (6), the outside cover of inner core (2) is equipped with core cover (1), the front end and the cooperation of outer core (3) of inner core (2), the upper end and the cooperation of core cover (1) of outer core (3) are connected, the lower extreme and the cooperation of runner mould benevolence (4) of outer core (3) are connected, compound die plate (5) one side be connected with the one end of rocking arm (7), the other end of rocking arm (7) articulates on the outer wall of outer core (3), the below of compound die plate (5) is provided with boss (8), boss (8) stretch into core cover (1) inboard to the roof pressure is on the up end of inner core (2). The utility model has the advantages that: the mold locking force can be increased, the self-locking of the mold can be ensured, the automatic centering can be realized, and the product yield is high.

Description

A kind of clasp mould mechanism based on PP transfusion bottle base mould

Technical field

The utility model relates to the injection mold of infusion bottle, particularly a kind of clasp mould mechanism based on PP transfusion bottle base mould.

Background technology

The injection moulding quality of infusion bottle and Design of Dies and manufacture have substantial connection, the success or failure of infusion bottle processing, depend on Design of Dies effect and Making mold quality to a great extent, and the structural element that Design of Dies will be considered have following some: 1, die joint: the contact surface that when namely mould closes, die and punch cooperatively interact, its position and the selected of form, affect by factors such as article shape and outward appearance, wall thickness, forming method, after-processing technology, mould-type and structure, release method and shaping machine structures; 2, running gate system: namely by the feeding-passage between injection machine nozzle to die cavity, comprise sprue, runner, cast gate and cold slug well, particularly the selected win of gate location is conducive to molten plastic is full of die cavity under good flow state, and to be attached on goods solid-state is left to and is easy to eject in mould with cast gate cold burden and is removed (except hot runner mould) when die sinking; 3, clamp force: when mould matched moulds, the size of clamp force decides die joint and whether can produce the defect such as overlap, burr, and this directly affects the quality of PP infusion bottle.

Existing for mould matched moulds many employings hydraulic mould-matching structure, its matched moulds is steady, little to mould impulsive force, but there is the little defect of clamp force, and even when hydraulic oil occurs to leak, mould cannot complete self-locking, causes product waster rate straight line to raise.In addition, in injection moulding matched moulds process, require the coordinating of shuttering and core very high, often occurring matched moulds error, is also the major reason that burr, finning appear in product.

Utility model content

The purpose of this utility model is the shortcoming overcoming prior art, provides a kind of and increases clamp force, guarantees mould self-locking and can the clasp mould mechanism based on PP transfusion bottle base mould of automatic centering.

The purpose of this utility model is achieved through the following technical solutions: a kind of clasp mould mechanism based on PP transfusion bottle base mould, it comprises interior core, outside core, cast gate die, shuttering and pressurizing cylinder, the outside of interior core is set with core cover, the front end of interior core coordinates with outside core, upper end and the core cover of outside core are connected, lower end and the cast gate die of outside core are connected, interior core, outside core and cast gate die complement each other to form bottle base die cavity, described shuttering side is connected with one end of pivoted arm, the other end of pivoted arm is hinged on the outer wall of outside core, the below of shuttering is provided with boss, boss stretches into core cover inner side, and top is pressed on the upper surface of interior core, described pressurizing cylinder is arranged at the top of shuttering, the output of pressurizing cylinder is fixedly connected with the upper surface of shuttering.

Described interior core is provided with cooling duct vertically.

Described boss is frustum, and core cover inside front is provided with the cone structure coordinated with boss.

The utility model has the following advantages:

1, above shuttering, arrange pressurizing cylinder, pressurizing cylinder is exerted pressure to shuttering when matched moulds, increases clamp force, guarantees mould self-locking, and the probability that bottle base produces the defect such as overlap, burr is little, and yields is high.

2, be provided with frustum structure below shuttering, during matched moulds, the cone match that frustum structure and core overlap, can automatic centering, makes matched moulds more accurate, improves product yield further.

3, the utility model structure is simple, and difficulty of processing is little, low cost of manufacture.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of shuttering;

In figure: 1-core cover, core in 2-, 3-outside core, 4-cast gate die, 5-shuttering, 6-pressurizing cylinder, 7-pivoted arm, 8-boss, 9-cooling duct.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.

As shown in Figure 1, a kind of clasp mould mechanism based on PP transfusion bottle base mould, it comprises interior core 2, outside core 3, cast gate die 4, shuttering 5 and pressurizing cylinder 6, the outside of interior core 2 is set with core cover 1, the front end of interior core 2 coordinates with outside core 3, the upper end of outside core 3 and core overlap 1 and are connected, lower end and the cast gate die 4 of outside core 3 are connected, interior core 2, outside core 3 and cast gate die 4 complement each other to form bottle base die cavity, described shuttering 5 side is connected with one end of pivoted arm 7, the other end of pivoted arm 7 is hinged on the outer wall of outside core 3, the below of shuttering 5 is provided with boss 8, boss 8 stretches into inside core cover 1, and top is pressed on the upper surface of interior core 2, described pressurizing cylinder 6 is arranged at the top of shuttering 5, the output of pressurizing cylinder 6 is fixedly connected with the upper surface of shuttering 5.

Further, described interior core 2 is provided with cooling duct 9 vertically, and in injection moulding process, after being cast, after passing into cooling water to inside, cooling duct 9, bottle base is soon shaping, enhances productivity, the temperature of core 2 in simultaneously reducing fast.

Further, as shown in Figure 2, described boss 8 is frustum, and core overlaps 1 inside front and is provided with the cone structure coordinated with boss 8, and frustum structure and core overlap the cone match of 1, can automatic centering, makes matched moulds more accurate, improves product yield further.

Claims

1. the clasp mould mechanism based on PP transfusion bottle base mould, it is characterized in that: it comprises interior core (2), outside core (3), cast gate die (4), shuttering (5) and pressurizing cylinder (6), the outside of interior core (2) is set with core cover (1), the front end of interior core (2) coordinates with outside core (3), upper end and the core cover (1) of outside core (3) are connected, lower end and the cast gate die (4) of outside core (3) are connected, interior core (2), outside core (3) and cast gate die (4) complement each other to form bottle base die cavity, described shuttering (5) side is connected with one end of pivoted arm (7), the other end of pivoted arm (7) is hinged on the outer wall of outside core (3), the below of shuttering (5) is provided with boss (8), boss (8) stretches into core cover (1) inner side, and top is pressed on the upper surface of interior core (2), described pressurizing cylinder (6) is arranged at the top of shuttering (5), the output of pressurizing cylinder (6) is fixedly connected with the upper surface of shuttering (5).

2. a kind of clasp mould mechanism based on PP transfusion bottle base mould according to claim 1, is characterized in that: described interior core (2) is provided with cooling duct (9) vertically.

3. a kind of clasp mould mechanism based on PP transfusion bottle base mould according to claim 1, is characterized in that: described boss (8) is frustum, and core cover (1) inside front is provided with the cone structure coordinated with boss (8).