CN221834857U - Quick cooling shaping injection mold - Google Patents

Abstract

The utility model discloses a rapid cooling molding injection mold, which belongs to the technical field of injection molding molds and comprises the following components: the device comprises a feeding structure, an upper die holder, an upper die plate, an upper die core, an upper cooling loop structure, a lower die core, a lower die plate, a lower cooling loop structure, a resetting and stripping structure and a lower die holder; the feeding structure is arranged in the upper die holder, the upper die plate is arranged below the upper die holder, the upper die core is nested in the upper die plate, and the feeding structure passes through the upper die holder and the upper die plate and then is connected with the upper die core. The upper cooling loop structure is respectively connected with the upper template and the upper die core; the lower die core and the upper die core are arranged in a relatively movable opening and closing manner, and the lower die core is nested in the lower die plate; the lower cooling loop structure is respectively connected with the lower die core and the lower die plate, and the reset stripping structure is movably connected with the lower die core below the lower die plate; the lower die holder is arranged below the resetting and stripping structure. The utility model solves the technical problem of low cooling efficiency in the prior art.

Description

A rapid cooling molding injection mold

Technical Field

The utility model relates to the technical field of injection molding molds, in particular to a rapid cooling molding injection mold.

Background Art

Rapid cooling molding injection mold is a mold that can accelerate the cooling and solidification of injection molded products. Usually, in the injection molding process, the plastic melt needs to go through a cooling stage after being injected into the mold to obtain a finalized product. The traditional cooling method is to use natural cooling or forced air cooling, but these methods have a slow cooling speed and affect production efficiency.

Rapid cooling molding injection molds use special cooling devices and cooling media to accelerate the cooling speed of the plastic melt, thereby shortening the molding cycle and improving production efficiency. At the same time, rapid cooling molding injection molds can also improve the accuracy and quality of products and reduce scrap rates.

The design of rapid cooling molding injection molds needs to consider multiple factors, such as the properties of the plastic material, mold structure, location of the cooling device, and temperature of the cooling medium. According to different product requirements and production conditions, it is necessary to select a suitable rapid cooling molding injection mold design solution.

For example, Chinese patent CN207059157U discloses a rapid cooling molding mold, in which the bottom end of the upper mold plate is provided with a main channel, and the inside of the male mold fixing plate and the female mold fixing plate are respectively provided with a first annular condensing plate and a second annular condensing plate, and one side of the first annular condensing plate and the second annular condensing plate are provided with a condensing plate water inlet and a condensing plate water outlet. The core cooling element of this mold is an annular condensing plate, which has a fast cooling speed and high efficiency, and a switch and an adjustment knob are provided on the surface of the condensing plate. The power of the condensing plate can be adjusted by adjusting the knob according to the different materials of the injection molding to prevent the cooling temperature from being too low and causing the workpiece to crack; moreover, the shape of the annular condensing plate is annular, which can keep the temperature of each position of the workpiece basically consistent, greatly improving the surface quality of the workpiece.

However, the injection mold disclosed in the prior art still has the technical problem of poor cooling efficiency. Specifically, the raw materials of the injection molded products need to be treated at high temperature to become molten so as to enter the cavity of the injection mold; and the molten raw materials can be fixed into a preset shape in the cavity after cooling; it can be seen that the molding efficiency of the plastic product is limited by the cooling efficiency of the cavity. Although the annular cooling water channel disclosed in the prior art can serve the purpose of taking away heat, the heat that can be taken away by only one annular water channel is very limited, thereby affecting the cooling efficiency of the cavity.

Utility Model Content

Based on this, it is necessary to provide a rapid cooling molding injection mold to address the technical problem of low cooling efficiency in the prior art.

A rapid cooling molding injection mold, comprising: a feed structure, an upper mold base, an upper mold plate, an upper mold core, an upper cooling circuit structure, a lower mold core, a lower mold plate, a lower cooling circuit structure, a reset stripping structure and a lower mold base; the feed structure is arranged in the upper mold base, the upper mold plate is arranged below the upper mold base, the upper mold core is nested in the upper mold plate, and the feed structure is connected to the upper mold core after passing through the upper mold base and the upper mold plate. The upper cooling circuit structure is respectively connected to the upper mold plate and the upper mold core, and the upper cooling circuit structure has a first circuit, an upper inlet and an upper outlet; the first circuit is respectively connected to the upper mold plate and the upper mold core, and a plurality of the first circuits are evenly distributed in the upper mold plate and the upper mold core, and the two ends of each first circuit are respectively connected to an upper inlet and an upper outlet, and an upper inlet and a paired upper outlet are both arranged on the same side of the upper mold plate. The lower die core and the upper die core are relatively movable and openable, and the lower die core is nested in the lower template; the lower cooling circuit structure is respectively connected to the lower die core and the lower template, and the reset stripping structure is movably connected to the lower die core below the lower template; the lower die base is arranged below the reset stripping structure.

Furthermore, the lower cooling circuit structure has a second circuit, a lower inlet and a lower outlet.

Furthermore, the second circuit is connected to the lower mold plate and the lower mold core respectively, and a plurality of the second circuits are evenly distributed in the lower mold plate and the lower mold core, and the two ends of each second circuit are connected to a lower inlet and a lower outlet respectively.

Furthermore, a lower inlet and a matched lower outlet are respectively arranged on two side surfaces of the lower template.

Furthermore, the resetting stripping structure comprises a plurality of stripping ejectors, a stripping push plate, a resetting push plate, a resetting spring and a reciprocating guide column.

Furthermore, the upper parts of several of the stripping ejectors pass through the lower mold plate and extend into the lower mold core, and the lower part of each of the stripping ejectors is connected to the stripping push plate.

Furthermore, the reset push plate is arranged above the stripping push plate, and the reset push plate limits the lower part of each of the stripping ejectors and connects them to the stripping push plate.

Furthermore, a plurality of the reset springs are evenly arranged between the lower template and the reset push plate.

Furthermore, a plurality of the reciprocating guide columns are evenly distributed between the lower die base and the lower die plate.

Furthermore, each of the reciprocating guide columns moves through the stripping push plate and the reset push plate.

In summary, the utility model provides a rapid cooling molding injection mold including: a feeding structure, an upper mold base, an upper mold plate, an upper mold core, an upper cooling circuit structure, a lower mold core, a lower mold plate, a lower cooling circuit structure, a reset and stripping structure and a lower mold base; the feeding structure is arranged in the upper mold base, the upper mold plate is arranged below the upper mold base, the upper mold core is nested in the upper mold plate, and the feeding structure is connected to the upper mold core after passing through the upper mold base and the upper mold plate. The upper cooling circuit structure is respectively connected to the upper mold plate and the upper mold core; the lower mold core is relatively movable to open and close, and the lower mold core is nested in the lower mold plate; the lower cooling circuit structure is respectively connected to the lower mold core and the lower mold plate, and the reset and stripping structure is movably connected to the lower mold core below the lower mold plate; the lower mold base is arranged below the reset and stripping structure. The upper and lower parts of the mold are respectively provided with a plurality of groups of upper cooling circuit structures and lower cooling circuit structures which perform circulation work independently, so that the injection molded parts formed between the upper mold core and the lower mold core can achieve the effect of rapid cooling and forming. That is, the rapid cooling and forming injection mold of the utility model solves the technical problem of low cooling efficiency existing in the prior art.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a rapid cooling molding injection mold of the utility model;

FIG2 is a schematic diagram of an exploded structure of a rapid cooling molding injection mold part of the utility model;

FIG3 is a schematic cross-sectional view of a partial structure of a rapid cooling molding injection mold of the utility model;

FIG4 is a schematic cross-sectional view of a partial structure of a rapid cooling molding injection mold of the present invention;

FIG. 5 is a schematic cross-sectional structure diagram of another direction of a rapid cooling molding injection mold of the present invention.

DETAILED DESCRIPTION

In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Please refer to Figures 1 to 5 together. The utility model is a rapid cooling molding injection mold comprising: a feeding structure 1, an upper mold base 2, an upper mold plate 3, an upper mold core 4, an upper cooling circuit structure 5, a lower mold core 6, a lower mold plate 7, a lower cooling circuit structure 8, a reset stripping structure 9 and a lower mold base 10; the feeding structure 1 is arranged in the upper mold base 2, the upper mold plate 3 is arranged below the upper mold base 2, the upper mold core 4 is nested in the upper mold plate 3, and the feeding structure 1 passes through the upper mold base 2 and the upper mold plate 3 and then is connected to the upper mold core 4. The upper cooling circuit structure 5 is connected to the upper mold plate 3 and the upper mold core 4 respectively, and the upper cooling circuit structure 5 has a first circuit 501, an upper inlet 502 and an upper outlet 503; the first circuit 501 is connected to the upper mold plate 3 and the upper mold core 4 respectively, and a plurality of the first circuits 501 are evenly distributed in the upper mold plate 3 and the upper mold core 4, and the two ends of each first circuit 501 are connected to an upper inlet 502 and an upper outlet 503 respectively, and an upper inlet 502 and a paired upper outlet 503 are both arranged on the same side of the upper mold plate 3. The lower mold core 6 is relatively movable and openable with the upper mold core 4, and the lower mold core 6 is nested in the lower mold plate 7; the lower cooling circuit structure 8 is respectively connected to the lower mold core 6 and the lower mold plate 7, and the reset stripping structure 9 is movably connected to the lower mold core 6 below the lower mold plate 7; the lower mold base 10 is arranged below the reset stripping structure 9.

Furthermore, the lower cooling circuit structure 8 has a second circuit 801, a lower inlet 802 and a lower outlet 803; the second circuit 801 is connected to the lower mold 7 and the lower mold core 6 respectively, and a plurality of second circuits 801 are evenly distributed in the lower mold 7 and the lower mold core 6, and the two ends of each second circuit 801 are respectively connected to a lower inlet 802 and a lower outlet 803, and a lower inlet 802 and a paired lower outlet 803 are respectively arranged on two side surfaces of the lower mold 7.

Specifically, the first circuit 501 provided in the upper cooling circuit structure 5 is a horizontally placed U-shaped structure, and the opening of the horizontally placed U-shaped structure faces the side of the upper template 3 where the upper inlet 502 and the upper outlet 503 are provided.

Specifically, the second circuit 801 provided in the lower cooling circuit structure 8 is a vertically placed U-shaped structure, and the opening of the vertically placed U-shaped structure faces the direction of the lower mold base 10 .

Further, the reset stripping structure 9 has a plurality of stripping ejectors 901, a stripping push plate 902, a reset push plate 903, a reset spring 904 and a reciprocating guide column 905; the upper parts of the plurality of stripping ejectors 901 extend through the lower mold plate 7 into the lower mold core 6, and the lower part of each stripping ejector 901 is connected to the stripping push plate 902; the reset push plate 903 is arranged above the stripping push plate 902, and the reset push plate 903 limits the lower part of each stripping ejector 901 to be connected to the stripping push plate 902. The plurality of reset springs 904 are evenly arranged between the lower mold plate 7 and the reset push plate 903, and the plurality of reciprocating guide columns 905 are evenly distributed between the lower mold base 10 and the lower mold plate 7, and each reciprocating guide column 905 moves through the stripping push plate 902 and the reset push plate 903.

Specifically, the working principle of the fast cooling molding injection mold of the utility model is as follows: the external molten plastic flows from the feed structure 1 and flows into the cavity between the upper mold core 4 and the lower mold core 6; after each cavity is evenly filled, the upper cooling circuit structure 5 and the lower cooling circuit structure 8 respectively control the temperature of the upper mold core 4 and the lower mold core 6 to ensure the cooling and molding of the plastic parts, and then the reset stripping structure 9 is used to eject the molded injection molded parts from the lower mold core 6 to strip the materials. More specifically, the first circuit 501 is a horizontally placed U-shaped structure, and each of the first circuits 501 corresponds to an upper inlet 502 and is paired with an upper outlet 503 to form a separate cooling circuit, and a number of groups of the same cooling circuits are evenly arranged in the upper mold plate 3 and the upper mold core 4, so that the upper mold core 4 can be quickly cooled and temperature controlled. Furthermore, the second circuit 801 is a longitudinally arranged U-shaped structure, and this group of U-shaped structures and the horizontally placed U-shaped structure described above form crisscross but independent cooling vortices, so that the upper mold core 4 and the lower mold core 6 can be cooled down more easily. Since fluid cooling media such as water or coolant can quickly take away heat, in order to avoid the cooling medium flowing back and forth in the same water circuit cycle and affecting the efficiency of heat absorption, multiple groups of cooling circuits are independently set at the upper and lower parts of the mold to avoid the situation in which when a single cooling circuit is set, the medium that absorbs heat flows to the heat source multiple times and cannot further take away heat, thereby affecting the temperature control efficiency.

Furthermore, when the injection molded part is formed between the upper mold core 4 and the lower mold core 6, the stripping push plate 902 can move upward under the push of the external injection molding machine's action mechanism, and the action mechanism can pass through the lower mold base 10 and abut the bottom of the stripping push plate 902. When the stripping push plate 902 moves, each of the stripping ejector pins 901 can follow its movement and lift the injection molded part from the lower mold core 6; at this time, the reset spring 904 is in a compressed state. When the external action mechanism is reset and withdrawn, the reset spring 904 can push the reset push plate 903 downward, thereby causing the stripping push plate 902 to drive the stripping ejector pins 901 to reset. During the action of the stripping push plate 902 and the reset push plate 903, the reciprocating guide column 905 can guide both.

In summary, the utility model is a rapid cooling molding injection mold comprising: a feed structure 1, an upper mold base 2, an upper mold plate 3, an upper mold core 4, an upper cooling circuit structure 5, a lower mold core 6, a lower mold plate 7, a lower cooling circuit structure 8, a reset stripping structure 9 and a lower mold base 10; the feed structure 1 is arranged in the upper mold base 2, the upper mold plate 3 is arranged below the upper mold base 2, the upper mold core 4 is nested in the upper mold plate 3, and the feed structure 1 passes through the upper mold base 2 and the upper mold plate 3 and is connected to the upper mold core 4. The upper cooling circuit structure 5 is respectively connected to the upper mold plate 3 and the upper mold core 4; the lower mold core 6 is relatively movable and openable, and the lower mold core 6 is nested in the lower mold plate 7; the lower cooling circuit structure 8 is respectively connected to the lower mold core 6 and the lower mold plate 7, and the reset stripping structure 9 is movably connected to the lower mold core 6 below the lower mold plate 7; the lower mold base 10 is arranged below the reset stripping structure 9. The upper and lower parts of the mold are respectively provided with a plurality of groups of upper cooling circuit structures 5 and lower cooling circuit structures 8 which perform circulation work independently, so that the injection molded parts formed between the upper mold core 4 and the lower mold core 6 can achieve the effect of rapid cooling and forming. That is, the rapid cooling and forming injection mold of the utility model solves the technical problem of low cooling efficiency existing in the prior art.

The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims (10)

1. The utility model provides a rapid cooling shaping injection mold which characterized in that, it includes: the device comprises a feeding structure (1), an upper die holder (2), an upper die plate (3), an upper die core (4), an upper cooling loop structure (5), a lower die core (6), a lower die plate (7), a lower cooling loop structure (8), a reset stripping structure (9) and a lower die holder (10); the feeding structure (1) is arranged in the upper die holder (2), the upper die plate (3) is arranged below the upper die holder (2), the upper die core (4) is arranged in the upper die plate (3) in a nested manner, and the feeding structure (1) penetrates through the upper die holder (2) and the upper die plate (3) and then is connected with the upper die core (4); the upper cooling loop structure (5) is respectively connected with the upper die plate (3) and the upper die core (4), and the upper cooling loop structure (5) is provided with a first loop (501), an upper inlet (502) and an upper outlet (503); the first loops (501) are respectively communicated with the upper die plate (3) and the upper die core (4), a plurality of first loops (501) are uniformly distributed in the upper die plate (3) and the upper die core (4), two ends of each first loop (501) are respectively connected with an upper inlet (502) and an upper outlet (503), and the upper inlet (502) and the upper outlet (503) which are arranged in a matching way are arranged in the same side face of the upper die plate (3); the lower die core (6) and the upper die core (4) are arranged in a relatively movable opening and closing manner, and the lower die core (6) is nested in the lower die plate (7); the lower cooling loop structure (8) is respectively connected with the lower die core (6) and the lower die plate (7), and the reset stripping structure (9) is movably connected with the lower die core (6) below the lower die plate (7); the lower die holder (10) is arranged below the resetting and stripping structure (9).

2. The rapid cooling injection mold of claim 1, wherein: the lower cooling circuit structure (8) has a second circuit (801), a lower inlet (802) and a lower outlet (803).

3. The rapid cooling injection mold of claim 2, wherein: the second loops (801) are respectively communicated with the lower die plate (7) and the lower die core (6), a plurality of second loops (801) are uniformly distributed in the lower die plate (7) and the lower die core (6), and two ends of each second loop (801) are respectively connected with a lower inlet (802) and a lower outlet (803).

4. A rapid cooling injection mold according to claim 3, wherein: the lower inlet (802) and the lower outlet (803) which are arranged in a pairing way are respectively arranged in the two side surfaces of the lower template (7) in an opposite way.

5. The rapid cooling injection mold of claim 4, wherein: the reset stripping structure (9) is provided with a plurality of stripping ejector pins (901), a stripping push plate (902), a reset push plate (903), a reset spring (904) and a reciprocating guide column (905).

6. The rapid cooling injection mold of claim 5, wherein: the upper parts of the plurality of stripping thimbles (901) penetrate through the lower die plate (7) and extend into the lower die core (6), and the lower part of each stripping thimble (901) is connected with the stripping push plate (902).

7. The rapid cooling injection mold of claim 6, wherein: the reset push plates (903) are arranged above the stripping push plates (902), and the reset push plates (903) are used for limiting and connecting the lower parts of the stripping ejector pins (901) to the stripping push plates (902).

8. The rapid cooling injection mold of claim 7, wherein: the plurality of reset springs (904) are respectively and uniformly arranged between the lower die plate (7) and the reset push plate (903).

9. The rapid cooling injection mold of claim 8, wherein: the reciprocating guide posts (905) are uniformly distributed between the lower die holder (10) and the lower die plate (7).

10. The rapid cooling injection mold of claim 9, wherein: each reciprocating guide post (905) movably penetrates through the stripping push plate (902) and the reset push plate (903).