Porous corrugated pipe with spiral conformal cooling water channel and mold cooling device

Abstract

The utility model relates to the technical field of injection molds, in particular to a porous corrugated pipe with a spiral conformal cooling water channel and a mold cooling device, which comprise a pipe body, a plurality of through holes arranged in the pipe body and a spiral groove arranged on the outer wall of the pipe body, the pipe body is spiral, and the through holes penetrate through the head end and the tail end of the pipe body. The through holes and the spiral grooves are combined, heat transfer efficiency is improved through the synergistic effect, mold temperature distribution is more uniform through cooperation of the through holes and the spiral grooves, buckling deformation and internal stress of a product are reduced, the surface quality of the mold is improved, the special-shaped cooling requirement of a complex mold cavity is met, and injection molding efficiency and the product yield are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a kind of porous corrugated pipe and mould cooling device with spiral conformal cooling water channel. BACKGROUND

[0002] Injection mold is generally adopted linear or simple fold line type cooling water channel in early stage, and is processed by drilling process. With the continuous progress of science and technology production, conformal cooling water channel emerges as the times require, and its water channel profile can change with the change of plastic part cavity, and this design can significantly improve cooling efficiency and product quality, but there are still the following technical defects and limitations in practical application: high manufacturing cost, material and process limitation, high maintenance cost.

[0003] Porous structure is a kind of multifunctional composite material. It has the characteristics of high strength and low relative density, and some porous structures also have the characteristics of self-supporting, so it can be used as a filling material that can improve the cooling efficiency and cooling uniformity of injection mold cooling water channel. Selective laser melting technology is a kind of metal additive manufacturing technology. Compared with traditional processing methods, selective laser melting technology has higher design freedom and the ability to manufacture complex internal structures, so selective laser melting technology has the ability to manufacture porous structure conformal cooling water channel.

[0004] Although conformal cooling technology realizes complex water channel design through 3D printing, it still has the defects of insufficient turbulent effect and limited heat exchange efficiency. The spiral corrugated pipe structure increases the contact area of the cooling medium and the mold through its unique shape, thereby significantly improving the heat exchange efficiency. However, the existing porous or corrugated single structure water channel cannot simultaneously meet the needs of flow path optimization and surface area expansion. Therefore, we propose a porous corrugated pipe with spiral conformal cooling water channel and mold cooling device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a porous corrugated pipe with spiral conformal cooling water channel and mold cooling device, in order to solve the problem of water channel in the prior art that cannot simultaneously meet the needs of flow path optimization and surface area expansion.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A porous corrugated pipe with spiral conformal cooling water channel, comprising a pipe body, a plurality of through holes opened in the pipe body, and a spiral groove opened on the outer wall of the pipe body, the pipe body is spiral, and the through holes pass through the first and second ends of the pipe body.

[0008] Preferably, the pipe body diameter is 10mm, the pipe body spacing is 25mm, the total height of the pipe body is 100mm, and the pipe body major diameter is 100mm.

[0009] Preferably, the through hole is a cylindrical through hole, the through hole diameter is 1mm, and the plurality of through holes are uniformly distributed in the pipe body.

[0010] Preferably, the cross section of the spiral groove is in the shape of an arc, and the arc bottom depth is 1mm.

[0011] Preferably, the number of the through holes is 13, and the number of the through holes from top to bottom is 1, 3, 5, 3, and 1 in sequence.

[0012] Preferably, a mold cooling device is characterized in that the porous corrugated pipe with the spiral conformal cooling water channel is adopted.

[0013] Compared with the prior art, the mold cooling device has the beneficial effects that:

[0014] 1. The through hole and the spiral groove are combined for the injection mold cooling water channel system, the porous unit can expand the water channel heat dissipation area, the spiral corrugated path can enhance fluid disturbance, and it is easier to form turbulent flow and enhance heat exchange efficiency.

[0015] 2. The mold cooling device is more flexible and conforms to the mold contour, and the cooling deficiency problem caused by too far distance from the cavity is avoided.

[0016] 3. The complex geometry of the porous corrugated pipe structure can be integrally manufactured through 3D printing, which breaks through the traditional processing limit and meets the high precision requirement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the porous corrugated pipe in the utility model;

[0018] Figure 2 is Figure 1 an enlarged view of A in the utility model;

[0019] Figure 3 is a front view of the utility model;

[0020] Figure 4 is a sectional view of the porous corrugated pipe in the utility model.

[0021] In the drawing: 101, pipe body; 102, through hole; 103, spiral groove; a, arc bottom; H, conformal cooling water channel total height; D, conformal cooling water channel major diameter; d, conformal cooling water channel diameter; P, conformal cooling water channel spacing. DETAILED DESCRIPTION

[0022] In order to make the technical scheme in the embodiments of the utility model clear, complete, the features and advantages can be more obvious and easy to understand, the specific embodiments of the utility model are explained in detail in conjunction with the drawings of the specification, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1 to 4 The utility model provides a kind of porous corrugated pipe with spiral conformal cooling water channel and mould cooling device, including pipe body 101, multiple through holes 102 being opened in pipe body 101 and spiral groove 103 being opened on the outer wall of pipe body 101, the pipe body 101 is spiral, the through hole 102 penetrates the both ends of pipe body 101.

[0024] The diameter of the pipe body 101 is 10mm, the spacing of the pipe body 101 is 25mm, the total height of the pipe body 101 is 100mm, and the major diameter of the pipe body 101 is 100mm.

[0025] The through hole 102 is a cylindrical through hole 102, the diameter of the through hole 102 is 1mm, and multiple through holes 102 are evenly distributed in the pipe body 101.

[0026] The cross section of the spiral groove 103 is circular arc, and the arc bottom depth is 1mm.

[0027] The number of the through hole 102 is 13, and the number of the through hole from top to bottom is 1, 3, 5, 3 and 1 in turn.

[0028] A mould cooling device is characterized by: adopting the porous corrugated pipe with spiral conformal cooling water channel.

[0029] Working principle: the utility model combines porous structure and spiral corrugated pipe structure, aiming at optimizing cooling efficiency. Porous structure can increase the flow area of cooling liquid, and spiral corrugated pipe structure changes the direction of water flow, increases turbulence, so as to improve heat exchange efficiency. After entering the mould, the cooling liquid first flows through the porous area, and the numerous small pores greatly increase the contact area of the cooling liquid and the mould, which is beneficial to heat absorption. Then, the cooling liquid enters the spiral corrugated pipe structure area, and the tortuous channel of the spiral corrugated pipe structure forces the cooling liquid to change the flow state constantly, forming turbulence. Turbulence is like the rapids in river, and water flow constantly impacts and mixes, so that heat is quickly exchanged, ensuring that the temperature of the mould is uniform, improving the quality and production efficiency of injection molded products.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A perforated bellows with helical conformal cooling channels, characterized in that: The application relates to a porous corrugated pipe with spiral cooling water channels, which comprises a pipe body (101), a plurality of through holes (102) arranged in the pipe body (101) and spiral grooves (103) arranged on the outer wall of the pipe body (101), the pipe body (101) is spiral, and the through holes (102) pass through the two ends of the pipe body (101).

2. The perforated bellows with helically conforming cooling channels of claim 1, wherein: The diameter of the pipe body (101) is 10 mm, the interval of the pipe body (101) is 25 mm, the total height of the pipe body (101) is 100 mm, and the large diameter of the pipe body (101) is 100 mm.

3. The multi-porous bellows with helically conforming cooling channels of claim 2, wherein: The through holes (102) are cylindrical through holes (102), the diameter of the through holes (102) is 1 mm, and the plurality of through holes (102) are uniformly distributed in the pipe body (101).

4. The multi-porous bellows with helically conforming cooling channels of claim 1, wherein: The cross section of the spiral groove (103) is in the shape of an arc, and the arc bottom depth is 1 mm.

5. The multi-porous bellows with helically conforming cooling channels according to any one of claims 1-4, characterized in that: The number of the through holes (102) is 13, and the number of the through holes from top to bottom is 1, 3, 5, 3 and 1 in sequence.

6. A mold cooling device characterized by: The application relates to a porous corrugated pipe with spiral cooling water channels, which comprises a pipe body (101), a plurality of through holes (102) arranged in the pipe body (101) and spiral grooves (103) arranged on the outer wall of the pipe body (101), the pipe body (101) is spiral, and the through holes (102) pass through the two ends of the pipe body (101).

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