CN213860661U

CN213860661U - Plastic forming die

Info

Publication number: CN213860661U
Application number: CN202022931490.0U
Authority: CN
Inventors: 张建群; 杨如方; 戴强
Original assignee: Shandong Tongjia Intelligent Equipment Co ltd
Current assignee: Shandong Tongjia Intelligent Equipment Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-03
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a plastic forming die, which belongs to the technical field of blow molding equipment and comprises a fixed plate, wherein a core rod is arranged on the fixed plate in a penetrating way, an outer die body is sleeved on the outer side of the core rod and is fixed with the lower end surface of the fixed plate through a nut, and a discharging flow channel is enclosed between the lower end of the outer die body and the core rod; the method is characterized in that: ejection of compact runner department is provided with the homogenization dish through rotating the homogenization material, and the outside terminal surface of homogenization dish is equidistant along vertical direction and is offered the fluting that becomes the left hand spiral of predetermineeing quantity, the beneficial effects of the utility model are that: more than two flow dividing channels which flow downwards are arranged on the surface of the core rod; the downward shunting flow channel enables the molten fluid to be mixed more fully; the material can drive the homogenization dish and rotate, makes the material can be at the excircle of plug more even distribution, has avoided the influence that plug material discharge gate department material is thick on one side thin.

Description

Plastic forming die

The technical field is as follows:

the utility model belongs to the technical field of the blowing equipment, more specifically relates to a plastic molding mould.

Background art:

in the hollow molding of plastics, a core rod is an element for changing the flow direction of a melt, and the melt moving horizontally in a screw barrel is converted into a vertically downward movement by the core rod; the core rod functions in the process: changing the direction of melt flow and redistributing the flow. Seted up two fuse-element grooves on traditional plug, two fuse-element grooves orientation converge with one side that the inlet carried on the back mutually, and the plug reposition of redundant personnel of this structure is inhomogeneous, and the reposition of redundant personnel effect is not good.

The patent number 201720164563.3 discloses a national utility model patent is used for fashioned plug of plastics cavity, has utilized the spiral runner to make the mixed degree of melt fluid have certain improvement, but the plug runner can cause the thick influence on one side of plug material discharge gate department material along with material extrusion speed's change.

The utility model has the following contents:

in order to solve the problems and overcome the defects of the prior art, the utility model provides a plastic forming die;

the first technical problem to be solved is that: the core rod flow channel can cause the influence of the thickness of one side of the material at the core rod material discharge port and the thinness of the other side of the material along with the change of the material extrusion speed;

the utility model provides a concrete technical scheme of above-mentioned technical problem does: the plastic forming die comprises a fixing plate, a core rod penetrates through the fixing plate, an outer die body is sleeved on the outer side of the core rod and fixed with the lower end face of the fixing plate through a nut, and a discharging flow channel is arranged between the lower end of the outer die body and the core rod in a surrounding mode; the method is characterized in that: an homogenization disc for homogenizing materials by rotating is arranged at the discharge flow channel, the homogenization disc is arranged in a circular structure, the end face of the inner side of the homogenization disc is matched with the end face of the outer side of the core rod through a ball, and the outer side of the homogenization disc is matched with the inner wall of the outer die body;

the outer side end face of the homogenization disc is provided with grooves which are in a left-handed spiral shape and are in a preset number at equal intervals along the vertical direction.

The surface of the middle upper part of the core rod is provided with a liquid inlet flow channel, the surface of the core rod is provided with two spiral downward flow distribution flow channels, and the flow distribution flow channels are positioned below the liquid inlet flow channels and communicated with the liquid inlet flow channels.

The upper end face of the homogenization disc is arranged into a round angle form.

The homogenization disc is arranged at an outlet at the lower end of the outer die body.

The core rod is fixed with the fixing plate through the locking nut.

The utility model has the advantages that:

the surface of the core rod of the device is provided with more than two flow dividing channels which flow downwards in the flow dividing direction; the downward shunting flow channel enables the molten fluid to be mixed more fully;

the bottom of plug still is provided with the homogenization dish that rotatory rotation is connected, and homogenization dish excircle processing has the levogyration spiral groove, and the material can drive the rotation of homogenization dish, makes the material can be at the excircle of plug more even distribution, has avoided the plug material to lead to the influence that discharge gate department material is thick on one side thin because of the change of velocity of flow.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the core rod structure of the present invention;

FIG. 3 is a schematic view of the homogenization disc structure of the present invention; in the drawings:

1. a core rod; 2. locking a nut; 3. a fixing plate; 4. an outer mold body; 5. a ball bearing; 6. homogenizing the plate; 7. a liquid inlet flow channel; 8. a flow dividing channel; 9. and (4) slotting.

The specific implementation mode is as follows:

to further clarify the objects, aspects and advantages of the present invention, a more complete description of the invention will now be rendered by reference to figures 1-3. In describing the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model discloses a concrete implementation mode: the plastic forming die comprises a fixing plate 3, a core rod 1 penetrates through the fixing plate 3, an outer die body 4 is sleeved on the outer side of the core rod 1, the outer die body 4 is fixed with the lower end face of the fixing plate 3 through a nut, and a discharging flow channel is arranged between the lower end of the outer die body 4 and the core rod 1 in a surrounding mode; the method is characterized in that: a homogenizing disc 6 for homogenizing materials by rotating is arranged at the discharging flow channel, the homogenizing disc 6 is arranged into a circular structure, the end face of the inner side of the homogenizing disc 6 is matched with the end face of the outer side of the core rod 1 through a ball 5, and the outer side of the homogenizing disc 6 is matched with the inner wall of the outer die body 4;

the outer side end face of the homogenization disc 6 is provided with a preset number of left-handed spiral grooves 9 at equal intervals along the vertical direction.

The surface of the middle upper part of the core rod 1 is provided with a liquid inlet flow channel 7, the surface of the core rod 1 is provided with two spiral downward flow distribution flow channels 8, and the flow distribution flow channels 8 are positioned below the liquid inlet flow channels 7 and are communicated with the liquid inlet flow channels 7.

The upper end face of the homogenization disc 6 is arranged in a round angle mode.

The homogenization disc 6 is arranged at an outlet at the lower end of the outer mold body 4.

The core rod 1 is fixed with a fixing plate 3 through a lock nut 2.

It is to be noted that the utility model relates to a plastic forming mold, when in specific work,

1. the surface of the core rod 1 is provided with two spiral downward flow distribution channels 8, the flow distribution channels 8 are positioned below the liquid inlet channel 7 and communicated with the liquid inlet channel, a melt flows through the flow distribution channels 8 and can overflow towards two side parts of the channels, and the downward flow distribution channels enable the melt to be mixed more fully;

2. the material gets into inlet channel 7 and reposition of redundant personnel runner 8 of plug 1 from outer die body 4 round hole, the material is along the reposition of redundant personnel runner 8 downstream of constituteing between plug 1 and the outer die body 4, when the material flows through homogenization dish 6, homogenization dish 6 and plug 1 pass through ball 5 equipment together, homogenization dish 6 can be rotatory at 1 plug excircle, because homogenization dish 6 excircle processing has left hand spiral's fluting 9, the material can drive homogenization dish 6 rotatory, make the material can be at the more even distribution of the excircle of plug 1.

3. The upper end surface of the homogenization disc 6 is arranged into a round angle, so that the feeding amount of the left-handed spiral grooving 9 is increased, and the feeding flow rate is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A plastic forming die comprises a fixing plate (3), wherein a core rod (1) penetrates through the fixing plate (3), an outer die body (4) is sleeved on the outer side of the core rod (1), the outer die body (4) is fixed with the lower end face of the fixing plate (3) through a nut, and a discharging flow channel is arranged between the lower end of the outer die body (4) and the core rod (1); the method is characterized in that: an homogenization disc (6) for homogenizing materials through rotation is arranged at the discharging flow channel, the homogenization disc (6) is arranged into a circular structure, the end face of the inner side of the homogenization disc (6) is matched with the end face of the outer side of the core rod (1) through a ball (5), and the outer side of the homogenization disc (6) is matched with the inner wall of the outer die body (4);

the outer side end face of the homogenization disc (6) is provided with a preset number of left-handed spiral grooves (9) at equal intervals along the vertical direction.

2. The plastic molding die according to claim 1, characterized in that a liquid inlet channel (7) is arranged on the surface of the middle upper portion of the core rod (1), two spiral downward flow dividing channels (8) are arranged on the surface of the core rod (1), and the flow dividing channels (8) are located below the liquid inlet channel (7) and communicated with the liquid inlet channel.

3. A plastic moulding mould according to claim 1, characterised in that the upper end face of the homogenizing disc (6) is provided in the form of a rounded corner.

4. A plastic moulding mould as claimed in claim 3, characterized in that the homogenizing disc (6) is arranged at the outlet at the lower end of the outer mould body (4).

5. Plastic moulding tool according to claim 1, characterized in that the core rod (1) is fixed to the fixing plate (3) by means of a locking nut (2).