Low-pressure die

Abstract

The utility model discloses a low-pressure die, which relates to the technical field of low-pressure dies, and comprises a die body, a cooling box is arranged on the annular side surface of the die body, a protective cover is movably clamped on the upper surface of the die body, and two limiting columns are fixedly connected on the inner wall of the cooling box. In the forming process of a thermoplastic material, the too high temperature of the mold body can cause too long plastic cooling time, so that the mold body and the cooling box are tightly attached, cooling liquid quickly absorbs heat of the mold body, the cooling and curing process of the plastic is accelerated, the forming period is shortened, and the production efficiency is improved; the two sets of cooling fins fixed to the surface of the cooling box can increase the contact area of the cooling box and the surrounding environment, and after water or cooling liquid in the cooling box absorbs heat of the mold, the heat can be rapidly and effectively dissipated into the surrounding environment through the cooling fins.

Description

TECHNICAL FIELD

[0001] The utility model relates to low pressure mould technical field especially relates to a low pressure mould. BACKGROUND

[0002] Low pressure mould as a kind of commonly used mould type, it is widely applied in water treatment system field, especially in the manufacturing process of MK-15 front and rear plate, it is based on specific forming principle and process, by exerting low pressure to the material suitable for water treatment system to realize the forming of front and rear plate.

[0003] In practical application, low pressure mould usually needs to use the following technologies:

[0004] 1, cavity design technology, responsible for determining the shape and size of the forming space of mould, to meet the shape and size requirements of product;

[0005] 2, parting surface design technology, for reasonably dividing the opening and closing parts of mould, ensure that product can be smoothly demoulded, while avoiding producing fly edge and burr and other defects;

[0006] 3, guiding and positioning technology, guarantee the accuracy and stability of mould in opening and closing process, improve the dimensional accuracy of formed parts;

[0007] 4, demoulding mechanism design technology, make the product after forming can be smoothly demoulded from mould, avoid product deformation or damage.

[0008] At present, manufacturers realize the good performance of low pressure mould by using various designs and measures, some manufacturers set cooling channel on mould, reduce mould temperature by circulating cooling liquid;There are manufacturers that use heat sinks directly attached to the surface of the mould to increase the heat dissipation area and improve the heat dissipation efficiency. Some manufacturers optimize the thermal conductivity of mould material to indirectly control the temperature of the mould.

[0009] However, the above-mentioned implementation still has the following problems, in the maintenance of cooling system, the mould with cooling channel may be blocked inside due to long-term use, difficult to clean;The mould with heat sink may be damaged due to long-term use, inconvenient to replace;The effect of optimizing the thermal conductivity of mould material is relatively limited, which cannot meet the requirements of some high-temperature control applications, this application proposes a solution, designs a low pressure mould with detachable cooling box on the annular side of the mould, water or cooling liquid can be added in the cooling box to cool the mould, this design is convenient to operate and maintain, can quickly adjust the cooling system according to production requirements, through the detachable characteristics, it is convenient to clean, repair, upgrade and replace the cooling box, avoid affecting the normal use of mould and product quality due to cooling system failure. UTILITY MODEL CONTENT

[0010] Technical problems solved

[0011] In view of the defects of the prior art, the low-pressure mold solves the problems of the mold with cooling channels that may be blocked due to long-term use and difficult to clean, and the mold with heat dissipation fins that may be damaged due to long-term use and inconvenient to replace.

[0012] Technical solutions

[0013] To achieve the above object, the utility model discloses the following technical scheme: a low-pressure mold, including the mold body, the mold body annular side is provided with cooling box, the mold body upper surface swing joint has the protective cover, cooling box inner wall is fixedly connected with two limit posts, two limit posts upper surfaces all are set with round groove two, two limit posts annular side all are set with round groove one, the mold body front and back both sides are fixedly connected with fixed strip, two round groove one all are swing joint with the ball in, two round groove one respectively with two round groove two communication, two round groove two all are screwed with screw rod in, the mold body left and right sides all are set with annular groove one, the protective cover upper surface is fixedly connected with two handles one, the protective cover upper surface is set with annular groove two and two annular groove three, cooling box front and back both sides are fixedly connected with a group of heat dissipation fins.

[0014] As a preferred technical scheme of the utility model, two screw rods are respectively attached to two balls, and the lower surfaces of the two screw rods are fixedly connected with sharp ends.

[0015] As a preferred technical scheme of the utility model, two annular grooves are respectively swing jointed with two limit posts.

[0016] As a preferred technical scheme of the utility model, two annular grooves are respectively swing jointed with two limit posts.

[0017] As a preferred technical scheme of the utility model, the left and right sides of the cooling box are fixedly connected with handles two, and the upper surface of the cooling box is provided with water inlet and outlet.

[0018] Advantages

[0019] 1、Mold body temperature is too high will lead to plastic cooling time is too long, therefore, through the close fitting of mold body and cooling box, the cooling liquid quickly absorbs the heat of the mold body, accelerates the cooling and solidification process of plastic, thereby shortening the molding cycle, improving production efficiency, the surface of the cooling box fixed with two groups of cooling fins can increase the contact area with the surrounding environment, when the water or cooling liquid in the cooling box absorbs the heat of the mold, the heat can be more quickly and effectively dissipated to the surrounding environment through the cooling fins.

[0020] 2、Mold body upper surface movable clamping has protective cover, the protective cover is fitted with the surface groove of mold body, when the mold body is not used, the protective cover is used for protection, avoids dust accumulation, when the cooling box needs to be disassembled, the screw is rotated upwards to make it separate from the fitting of the ball, the limit is opened, the ball can be moved in the circular groove one, the sharp end fixed on the lower surface of the screw can effectively push the ball to move when limiting, at this time, the other side is repeated, the cooling box can be disassembled, the operation is simple, the limit is firm, the overall design is convenient for disassembly, which is convenient for the maintenance and cleaning of the cooling box in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following is the preferred embodiment of the utility model and the detailed description of the drawings as follows.

[0022] Figure 1 It is the overall structure diagram of the utility model;

[0023] Figure 2 It is the structure diagram of the cooling box in the utility model;

[0024] Figure 3 It is the structure diagram of the mold body in the utility model;

[0025] Figure 4 It is the structure diagram of the limiting column in the utility model.

[0026] Legend: 1, mold body; 2, cooling box; 3, protective cover; 4, handle one; 5, cooling fin; 6, inlet and outlet; 7, handle two; 8, annular groove one; 9, limiting column; 10, annular groove two; 11, annular groove three; 12, hole; 13, ball; 14, circular groove one; 15, circular groove two; 16, screw; 17, sharp end; 18, fixed strip. PREFERRED EMBODIMENT

[0027] The embodiment of the application provides a low-pressure mold, effectively solves the problems of easy blocking and great cleaning difficulty of the mold channel provided with a cooling channel in the aspect of cooling system maintenance, easy damage and inconvenient replacement of the mold fin, the scheme can add water or cooling liquid in the cooling box to cool the mold, the design is convenient and simple to operate, the cooling system can be quickly adjusted according to production requirements, the cooling box is convenient to clean, maintain, upgrade and replace through the convenient dismounting characteristics, and the normal use of the mold and product quality are avoided from being affected due to the cooling system failure.

[0028] Embodiment

[0029] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the general idea of the embodiment of the application is as follows:

[0030] In view of the problems in the prior art, the utility model provides a low-pressure mold, including mold body 1, the cooling box 2 is arranged on the annular side surface of the mold body 1, the protective cover 3 is movably connected to the upper surface of the mold body 1, two limit posts 9 are fixedly connected to the inner wall of the cooling box 2, a circular groove two 15 is formed in the upper surface of each limit post 9, a circular groove one 14 is formed in the annular side surface of each limit post 9, a fixed strip 18 is fixedly connected to the front and rear sides of the mold body 1, a spherical ball 13 is movably connected to each circular groove one 14, each circular groove one 14 is communicated with a circular groove two 15, a screw rod 16 is threadedly sleeved in each circular groove two 15, an annular groove one 8 is formed in the left and right sides of the mold body 1, two handle one 4 are fixedly connected to the upper surface of the protective cover 3, an annular groove two 10 and two annular groove three 11 are formed in the upper surface of the protective cover 3, a group of heat dissipation fins 5 are fixedly connected to the front and rear sides of the cooling box 2, the cavity surface of the mold body 1 is processed by using a precision grinding machine to ensure the flatness of the surface, and the parting surface of the mold body 1 is tightly fitted to prevent overflow and burr formation of plastic during injection, when the recess part of the mold body 1 is designed, a round corner insert is used for processing, so that a required round corner can be naturally formed at the recess of the front and rear plates during the molding process, and the surface quality is improved, the cooling box 2 is clamped on the annular side surface of the mold body 1, the cooling box 2 is blocked by the two fixed strips 18, cooling liquid is injected into the water inlet and outlet 6, the cooling box 2 is made of stainless steel and has good heat conductivity.

[0031] Two screw rods 16 are respectively attached to two round balls 13, the lower surface of each screw rod 16 is fixedly connected with a sharp end 17, two annular grooves 18 are respectively movably connected with two limiting columns 9, for the forming process of thermoplastic materials, the excessively high temperature of the mold body 1 will cause the plastic to cool for too long, therefore, through the close attachment of the mold body 1 and the cooling box 2, the cooling liquid can quickly absorb the heat of the mold body 1, accelerating the cooling and solidification process of the plastic, thereby shortening the molding cycle and improving production efficiency, the two groups of cooling fins 5 fixed on the surface of the cooling box 2 can increase the contact area with the surrounding environment, when the water or cooling liquid in the cooling box 2 absorbs the heat of the mold, the heat can be more quickly and effectively dissipated to the surrounding environment through the cooling fins 5.

[0032] Two annular grooves 18 are respectively movably connected with two round balls 13, the left and right sides of the cooling box 2 are fixedly connected with two handles 7, the upper surface of the cooling box 2 is provided with a water inlet and outlet 6, the upper surface of the mold body 1 is movably connected with a protective cover 3, the protective cover 3 is attached to the surface groove of the mold body 1, when the mold body 1 is not used, the protective cover 3 is used for protection, to avoid dust accumulation, when the cooling box 2 needs to be disassembled, the screw rod 16 is turned upward to separate from the round ball 13, the limiting column is opened, the round ball 13 can move in the circular groove 14, the sharp end 17 fixed on the lower surface of the screw rod 16 can effectively push the round ball 13 to move when the limiting column is opened, at this time, after repeating the operation on the other side, the cooling box 2 can be disassembled, the operation is simple, the limiting is firm, and the overall design is convenient for disassembly, which is convenient for the later maintenance and cleaning of the cooling box 2.

[0033] Working principle:

[0034] The cavity surface of the mold body 1 is processed by a precision grinding machine to ensure the flatness of the surface, and the parting surface of the mold body 1 is tightly fitted to prevent plastic from overflowing to form flash and burrs during injection, and when designing the groove part of the mold body 1, a round corner insert is used for processing, so that a required round corner can be naturally formed at the groove of the front and rear plates during molding, improving the surface quality, and the cooling box 2 is clamped on the annular side surface of the mold body 1, the cooling box 2 is blocked by two fixed strips 18, and the cooling liquid is injected into the water inlet and outlet 6, the cooling box 2 is made of stainless steel material and has good heat conductivity, for the molding process of thermoplastic materials, if the temperature of the mold body 1 is too high, the cooling time of the plastic will be too long, therefore, the mold body 1 and the cooling box 2 are tightly fitted, so that the cooling liquid can quickly absorb the heat of the mold body 1, accelerate the cooling and solidification process of the plastic, thereby shortening the molding cycle and improving the production efficiency, the two groups of cooling fins 5 fixed on the surface of the cooling box 2 can increase the contact area with the surrounding environment, when the water or cooling liquid in the cooling box 2 absorbs the heat of the mold, the heat can be quickly and effectively dissipated to the surrounding environment through the cooling fins 5, the protective cover 3 is movably clamped on the upper surface of the mold body 1, the protective cover 3 is fitted with the surface groove of the mold body 1, when the mold body 1 is not used, the protective cover 3 is used for protection to avoid dust accumulation, when the cooling box 2 needs to be disassembled, the screw rod 16 is turned upward to separate the fitting with the ball 13, the limit is opened, the ball 13 can move in the circular groove 14, the sharp end 17 fixed on the lower surface of the screw rod 16 can effectively push the ball 13 to move when the limit is in place, at this time, after repeating the operation on the other side, the cooling box 2 can be disassembled, the operation is simple, the limit is firm, and the overall design is convenient for disassembly, which is convenient for the later maintenance and cleaning of the cooling box 2.

[0035] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A low-pressure die comprising a die body (1), characterized in that, The mold body (1) annular side is provided with cooling box (2), the mold body (1) upper surface movable joint has protective cover (3), the cooling box (2) inner wall is fixedly connected with two limit posts (9), two the limit post (9) upper surface are all provided with round groove two (15), two the limit post (9) annular side are all provided with round groove one (14); Wherein, the mold body (1) front and back both sides are fixedly connected with fixed strip (18), two the round groove one (14) are movably connected with spherical ball (13) in, two the round groove one (14) are communicated with two round groove two (15) respectively, two the round groove two (15) are all screwed with screw rod (16) in, the mold body (1) left and right sides are all provided with annular groove one (8), the protective cover (3) upper surface is fixedly connected with two handle one (4), the protective cover (3) upper surface is provided with annular groove two (10) and two annular groove three (11).

2. A low pressure die as claimed in claim 1, wherein: The cooling box (2) front and back both sides are fixedly connected with a group of radiating fins (5).

3. A low pressure die as claimed in claim 1, wherein: Two the screw rod (16) are respectively combined with two spherical ball (13); Wherein, two the screw rod (16) lower surface are all fixedly connected with sharp end (17).

4. A low pressure die as claimed in claim 1, wherein: Two the annular groove one (8) are movably connected with two limit posts (9) respectively.

5. A low pressure die as claimed in claim 1, wherein: Two the annular groove one (8) inner wall are all provided with hole (12); Wherein, two the hole (12) are movably connected with two spherical ball (13) respectively.

6. A low pressure die as claimed in claim 1, wherein: The cooling box (2) left and right sides are all fixedly connected with handle two (7); Wherein, the cooling box (2) upper surface is provided with inlet and outlet (6).

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