CN219466817U - A multi-section plastic mold for wax products - Google Patents

Abstract

The utility model discloses a multi-section mold for wax products, which comprises an upper mold, a lower mold, a middle mold and a fixing mechanism. The upper and lower ends of the middle mold are respectively connected to the upper mold and the lower mold through the fixing mechanism. The upper mold, the lower mold and the middle mold all include a shell and an inner mold arranged on the inside of the shell. The bottom of the upper mold, the top of the lower mold, and the upper and lower ends of the middle mold are all provided with openings, and the inner mold is outward from the opening. Extend and form a protruding mold, the fixing mechanism includes two half-frames, slots, and fixing ears, the two half-frames are combined to form a closed-loop structure, the half-frames are set on the outside of the protruding mold, and the outside of the protruding mold is set The protruding block and the card slot are clamped, and the beneficial effect of the utility model is that the mold with a segmented structure design can reduce the frictional resistance between the finished product and the mold when demolding, and realize the effect of convenient demoulding; the spiral structure design The vent hole can prevent the leakage of injection molding liquid while venting.

Description

A multi-section plastic mold for wax products

technical field

The utility model relates to the technical field of injection molds, in particular to a multi-section mold for wax products.

Background technique

Injection molding is a method of producing industrial products. Products usually use two types of rubber injection molding and plastic injection molding. There are injection molding machines for injection molding. Injection molding is mainly realized through injection molding machines and molds. The mold is a tool that makes the blank into a workpiece with a specific shape and size under the action of external force. It mainly realizes the processing of the shape of the article through the change of the physical state of the so-called material. Injection mold is a tool for producing plastic products, and it is also a tool for giving plastic products a complete structure and precise dimensions. Through injection molding, some parts with complex shapes can be mass-produced. Specifically, the heated and melted plastic is injected into the grinding gun by the injection molding machine under high pressure. After cooling and solidification, molded products are obtained.

After the traditional mold is finished, it is not easy to demould. The fundamental reason is that the gap between the finished product and the mold is small and there is no air. The frictional resistance between the finished product and the mold is too large, which makes it difficult to detach the mold. The molds are all forced out by hydraulic mechanism or spring mechanism, but when faced with wax products, it is easy to cause damage to the wax products and reduce production efficiency.

Utility model content

The purpose of this utility model is to provide a multi-section mold for wax products to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a multi-section plastic mold for wax products, including an upper mold, a lower mold, a middle mold and a fixing mechanism, and the upper and lower ends of the middle mold are respectively connected by the fixing mechanism The upper mold and the lower mold, the upper mold, the lower mold and the middle mold all include a shell and an inner mold arranged on the inside of the shell, the bottom of the upper mold, the top of the lower mold, and the upper and lower ends of the middle mold are provided with openings, so The inner mold extends outward from the opening to form a protruding mold. The fixing mechanism includes two half-frames, slots, and fixing ears. The two half-frames are combined to form a closed-loop structure. On the outer side, and the outer side of the protruding mold is provided with a protrusion to engage with the slot, and the fixing ear is arranged on the outer side of the half frame.

Further, horizontal fixing holes and longitudinal fixing holes are provided on the fixing ears, and the two half-frames are fixed through the horizontal fixing holes and bolts, and the upper mold, the lower mold, and the middle mold are realized through the longitudinal fixing holes and bolts. fixed.

Further, the top of the upper mold is provided with an injection hole and a vent hole, and a spiral exhaust channel is arranged inside the vent hole, and the spiral exhaust channel can prevent the liquid paraffin from being discharged from the vent hole. It can effectively ensure the discharge of internal air.

Further, the shell of the middle mold is provided with protruding occlusal teeth, and the shells of the upper mold and the lower mold are provided with occlusal grooves corresponding to the occlusal teeth, similar to the occlusal of gears, between the occlusal teeth and the occlusal grooves With cooperation, the shell connection of the upper mold, the lower mold and the middle mold is more stable to prevent deviation of their positions.

Further, the occlusal teeth and the occlusal grooves are equidistantly arranged to form a closed-loop structure.

Further, an interlayer is provided between the outer shell and the inner mold, and a heating wire is arranged in the interlayer. The heating wire is connected to an external power supply through a wire provided inside, and can be heated by the heating wire to maintain a certain temperature inside the mold. In this way, When molding, the paraffin wax will not cool quickly inside the mold, which can effectively prevent the rapid solidification of the paraffin wax and ensure that the paraffin wax can flow smoothly to every corner of the mold.

Compared with the prior art, the beneficial effects of the utility model are:

The mold with segmented structure design can reduce the frictional resistance between the finished product and the mold during demoulding, and achieve the effect of convenient demoulding;

The vent hole designed in the spiral structure can prevent the leakage of injection molding liquid while venting;

The heating of the heating wire keeps the inside of the mold at a certain temperature, so that the paraffin wax will not cool down quickly inside the mold when molding, which can effectively prevent the rapid solidification of the paraffin wax.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

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

Fig. 2 is a schematic diagram of the structure of the occlusal teeth of the utility model;

Fig. 3 is a schematic diagram of the structure of the occlusal groove of the utility model.

In the figure: 1, upper mold; 2, lower mold; 3, middle mold; 4, fixing mechanism; 401, half frame; 402, slot; 403, fixed ear; 5, shell; 6, inner mold; 7, protrusion mold; 8 horizontal fixing holes; 9, vertical fixing holes; 10, injection holes; 11, air vents; 12, occlusal teeth; 13, occlusal grooves.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-3, in the embodiment of the present utility model, a kind of multi-stage plastic mold mold of wax product, comprises upper mold 1, lower mold 2, middle mold 3 and fixing mechanism 4, the upper and lower two of described middle mold 3 The ends are respectively connected to the upper mold 1 and the lower mold 3 through the fixing mechanism 4, and the upper mold 1, the lower mold 2 and the middle mold 3 all include an outer shell 5 and an inner mold 6 arranged on the inner side of the outer shell 5, and the bottom of the upper mold 1 , the top of the lower mold 2 and the upper and lower ends of the middle mold 3 are provided with openings, and the inner mold 6 extends outward from the opening to form a protruding mold 7, and the inner mold 6 and the protruding mold 7 are all made of high temperature resistant soft It is made of material, so that when demoulding, its protruding mold 7 can be rolled up to the outside, so that a gap is formed between the finished product and the mould, which facilitates the entry of air and achieves the effect of convenient demoulding. The fixing mechanism 4 includes two half frames 401 , slot 402, fixed ear 403, the two half-frames 401 are combined to form a closed-loop structure, the half-frame 401 is arranged on the outside of the protruding mold 7, and the outside of the protruding mold 7 is provided with a protrusion and the clamping groove 402, The fixing ears 403 are arranged on the outer side of the half frame 401, and the intermediate mold 3 and the fixing mechanism 4 can be arranged in multiples as required. After the mold is divided into multiple sections, the friction between the finished product and the inner mold 6 can be correspondingly reduced , At the same time, more gaps appear between the two, which facilitates the influx of a large amount of air.

Example:

As shown in Figure 1-3, the fixed ear 403 is provided with a horizontal fixing hole 8 and a longitudinal fixing hole 9, and the two half frames 401 are fixed through the horizontal fixing holes 8 and bolts, and the upper mold 1, the lower mold The mold 2 and the middle mold 3 are fixed through the longitudinal fixing holes 9 with bolts or hydraulic telescopic rods;

The top of the upper mold 1 is provided with an injection hole 10 and a vent hole 11, and the vent hole 11 is provided with a spiral exhaust channel inside, and the spiral exhaust channel can prevent liquid paraffin from being discharged from the vent hole 11. At the same time, it can effectively ensure the discharge of internal air, and a one-way exhaust valve is set inside the exhaust hole 11 to prevent external air from entering the interior of the mould;

The shell 5 of the middle mold 3 is provided with protruding occlusal teeth 12, and the shell 5 of the upper mold 1 and the lower mold 2 is provided with occlusal grooves 13 corresponding to the occlusal teeth 12, similar to the occlusion of gears. With the cooperation of the teeth 12 and the occlusal grooves 13, the upper mold 1, the lower mold 2 and the shell 5 of the middle mold 3 are connected more stably to prevent their positions from being deviated. structure, the closed-loop structure can be a ring or a circle or a rectangle or a square or an ellipse or an irregular figure;

An interlayer is provided between the outer shell 5 and the inner mold 6, and a heating wire is arranged in the interlayer. The heating wire is connected to an external power supply through a wire provided inside, and can be heated by the heating wire to maintain a certain temperature inside the mold. When molding, the paraffin wax will not cool down quickly inside the mold, which can effectively prevent the rapid solidification of the paraffin wax and ensure that the paraffin wax can flow smoothly to every corner of the mold.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. A multi-stage plastic mold for wax products, characterized in that: it includes an upper mold (1), a lower mold (2), a middle mold (3) and a fixing mechanism (4), and the middle mold (3) The upper and lower ends are respectively connected to the upper mold (1) and the lower mold (2) through the fixing mechanism (4). The upper mold (1), the lower mold (2) and the middle mold (3) all include the shell (5) and the device In the inner mold (6) inside the shell (5), the bottom of the upper mold (1), the top of the lower mold (2) and the upper and lower ends of the middle mold (3) are provided with openings, and the inner mold (6) Extending outward from the opening and forming a protruding mold (7), the fixing mechanism (4) includes two half-frames (401), card slots (402), fixing ears (403), and the two half-frames (401 ) combined into a closed-loop structure, the half frame (401) is arranged on the outside of the protruding die (7), and the protruding block is arranged on the outside of the protruding die (7) to engage with the slot (402), and the fixed ear (403) Set on the outside of the half frame (401). 2. A multi-section mold for wax products according to claim 1, characterized in that: the fixing ear (403) is provided with a horizontal fixing hole (8) and a vertical fixing hole (9), two The half-frame (401) is fixed through the horizontal fixing holes (8) with bolts, and the upper mold (1), lower mold (2) and middle mold (3) are fixed through the longitudinal fixing holes (9) with bolts. 3. A multi-section mold for wax products according to claim 1, characterized in that: the top of the upper mold (1) is provided with injection holes (10) and vent holes (11), the A spiral exhaust channel is arranged inside the exhaust hole (11). 4. A multi-section plastic mold for wax products according to claim 1, characterized in that: the shell (5) of the middle mold (3) is provided with protruding occlusal teeth (12), the The shells (5) of the upper mold (1) and the lower mold (2) are provided with occlusal grooves (13) corresponding to the occlusal teeth (12). 5 . The multi-section mold for wax products according to claim 4 , characterized in that: the occlusal teeth ( 12 ) and the occlusal grooves ( 13 ) are equidistantly arranged to form a closed-loop structure. 6 . 6. A multi-section mold for wax products according to claim 1, characterized in that: an interlayer is provided between the outer shell (5) and the inner mold (6), and a heating wire is arranged in the interlayer, so that The electric heating wire is externally connected to the power supply through the wire provided inside.