Fan blade injection mold and machining equipment

Abstract

The utility model relates to a fan blade injection mold and processing equipment. The technical problem that an existing injection mold is unreasonable in design is solved. The fan blade injection mold comprises an upper mold base and a lower mold base which are sequentially arranged from top to bottom, at least one injection molding cavity is formed between the upper mold base and the lower mold base, and a vertically-arranged injection column is arranged in the middle of the injection molding cavity; the circumferential cooling assembly comprises circumferential annular inserts vertically arranged at the two ends of the injection molding cavity at intervals, circumferential annular cooling flow channels are formed in the circumferential annular inserts, and circumferential cooling inlet and outlet flow channels communicating with the circumferential annular cooling flow channels are formed in the upper mold base and the lower mold base; the center insert cooling assembly comprises a center annular insert arranged on the injection column in a sleeving mode, a center annular cooling runner is arranged in the center annular insert, and a center cooling inlet and outlet runner communicated with the center annular cooling runner is arranged on the upper die base. According to the fan blade injection mold, the injection cooling effect and the cooling uniformity are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold field relates to a fan blade injection mold and processing equipment. BACKGROUND

[0002] For example, Chinese patent document discloses a kind of axial flow fan blade injection mold [202121183450.0], including first pressing plate, second pressing plate, axial flow fan blade mold and annular frame, wherein, the axial flow fan blade mold is set in the annular frame, the first pressing plate and the second pressing plate are respectively with the both ends of the annular frame detachable connection, on the material inlet position of the axial flow fan blade mold, several cooling water flow channels are equipped, and the cooling water flow channel is opposite with the hub part of axial flow fan blade, solves the problem that the hub part cooling forming time of conventional mold inside axial flow fan blade is long, influence entire axial flow fan blade forming efficiency.

[0003] The defects of the above technical scheme are that the cooling flow channel is far away from the injection cavity, and there is no cooling structure inside the injection cavity, which leads to slow cooling speed and uneven cooling of the fan blade injection product. UTILITY MODEL CONTENT

[0004] The utility model aims at the above problems existing in prior art, provide a kind of fan blade injection mold and processing equipment

[0005] The purpose of the utility model can be realized by the following technical schemes:

[0006] The fan blade injection mold comprises:

[0007] Upper die seat, lower die seat are sequentially arranged from top to bottom, at least one injection cavity is equipped between the upper die seat and lower die seat, vertical injection column is equipped in the middle of the injection cavity;

[0008] Circumferential cooling assembly, circumferential annular insert is vertically and spaced apart at the end of the injection cavity, circumferential annular cooling flow channel is equipped in the circumferential annular insert, circumferential cooling inlet and outlet flow channel that is connected with circumferential annular cooling flow channel is equipped on the upper die seat and lower die seat;

[0009] Center insert cooling assembly, center annular insert is sleeved and arranged on the injection column, center annular cooling flow channel is equipped in the center annular insert, center cooling inlet and outlet flow channel that is connected with center annular cooling flow channel is equipped on the upper die seat.

[0010] Further, the circumferential annular cooling flow channel is provided with inner diameter widening section arranged in annular space.

[0011] Further, the center annular cooling flow channel is arranged in annular direction in relief and staggered.

[0012] Furthermore, both the upper mold base and the lower mold base are provided with peripheral annular cooling channels.

[0013] Furthermore, the upper mold base is provided with a main injection port, and the main injection port is connected in parallel with at least two injection columns.

[0014] Furthermore, a vertical guide assembly and a mold closing positioning assembly are provided between the upper mold base and the lower mold base.

[0015] Furthermore, the bottom of the lower mold base is provided with a base plate, and mold feet are provided between the base plate and the lower mold base.

[0016] Furthermore, the base plate is provided with a top material structure, and the top material structure is provided with an ejector pin that can extend into the bottom of the injection cavity.

[0017] This utility model also provides a processing device having the fan blade injection mold as described above.

[0018] Compared with existing technologies, this fan blade injection mold improves the injection cooling effect and axial cooling uniformity by opening a circumferential annular cooling channel in the insert in the injection cavity, so that the cooling water is closer to the end of the injection cavity and the surrounding parts. In addition, the added central annular cooling channel provides rapid cooling for the inner side of the injection cavity, and together with the circumferential annular cooling channel, it forms radial uniform cooling. Attached Figure Description

[0019] Figure 1 A schematic diagram of a fan blade injection mold provided by this utility model.

[0020] Figure 2 for Figure 1 A cross-sectional view of the vertical guide component of the fan blade injection mold.

[0021] Figure 3 for Figure 1 A schematic diagram of the injection section of a fan blade injection mold.

[0022] Figure 4 for Figure 1 A schematic diagram of the injection cavity of a fan blade injection mold.

[0023] Figure 5 for Figure 1 A schematic diagram of the circumferential cooling component flow channel of the fan blade injection mold.

[0024] Figure 6 for Figure 1 A schematic diagram of the flow channel of the central insert cooling component in the injection mold of the fan blade.

[0025] Figure 7 for Figure 1The peripheral annular cooling runner of the fan blade injection mold has a solidified schematic diagram.

[0026] In the figure, 10, upper die holder; 11, injection cavity; 12, injection column; 13, total injection port; 20, lower die holder; 21, bottom plate; 22, die foot; 23, ejecting structure; 24, ejector pin; 30, circumferential cooling assembly; 31, circumferential annular insert; 32, circumferential annular cooling runner; 33, circumferential cooling inlet and outlet runner; 34, inner diameter widening section; 40, center insert cooling assembly; 41, center annular insert; 42, center annular cooling runner; 43, center cooling inlet and outlet runner; 50, peripheral annular cooling runner; 60, vertical guide assembly; 70, mold clamping positioning assembly. DETAILED DESCRIPTION

[0027] Embodiment 1, please refer to Figures 1 to 3 , which is a fan blade injection mold provided by the utility model. The fan blade injection mold comprises: upper die holder 10, lower die holder 20 arranged in sequence from top to bottom, injection cavity 11 arranged between upper die holder 10 and lower die holder 20, injection structure, and circumferential cooling assembly 30 and center insert cooling assembly 40 arranged at the position of injection cavity 11. It is conceivable that the fan blade injection mold also comprises other functional assemblies and specific structures, such as electrical connection assemblies, positioning pins, middle supports and other mounting structures, which are all known technologies for those skilled in the art, so they will not be described in detail here.

[0028] Upper die holder 10 is mainly composed of a pressing plate, a flow distribution plate and an upper die plate, which are connected through threaded fastening. Upper die holder 10 is a movable die holder, and is connected with a driving structure for vertical lifting of upper die holder 10. A total injection port 13 is arranged at the upper end of upper die holder 10, and a plurality of injection columns 12 are connected in parallel through the total injection port 13, and each injection column 12 corresponds to an independent injection cavity 11. The total injection port 13 is divided into the injection columns 12, so that synchronous injection of the plurality of injection cavities 11 is realized, and the injection efficiency is improved.

[0029] In this embodiment, lower die holder 20 is a fixed die holder, and is mainly composed of a lower die plate, a die foot 22 and a bottom plate 21. The lower die plate and the upper die plate are combined to form the above-mentioned injection cavity 11. The bottom plate 21 serves as a bottom mounting carrier, and the die foot 22 serves as a bottom support of the lower die holder 20 to raise the height of the lower die holder 20 for the installation of other components. The ejecting structure 23 is slidably arranged on the bottom plate 21, and the ejecting structure 23 is connected with a driving cylinder. The ejector pin 24 of the driving ejecting structure 23 can extend into the bottom of the injection cavity 11 to eject the injection product from the injection cavity 11 after the injection is completed, so as to facilitate the material taking.

[0030] In the embodiment, vertical guide assembly 60 is arranged between upper die holder 10 and lower die holder 20, vertical guide assembly 60 includes slidingly connected guide sleeve and guide column, and guides the closing movement of upper die holder 10 and lower die holder 20. Closing positioning assembly 70 is arranged outside upper die holder 10 and lower die holder 20, closing positioning assembly 70 includes positioning groove and positioning protrusion arranged on upper die holder 10 and lower die holder 20 respectively, and the insertion fit of the two achieves the reference of closing upper die holder 10 and lower die holder 20 in place.

[0031] In the embodiment, four injection cavities 11 are arranged between upper die holder 10 and lower die holder 20, vertical injection column 12 is arranged in the middle of each injection cavity 11, the injection cavity 11 of the fan blade mold is a ring cavity, injection column 12 is provided with injection hole communicated with injection cavity 11, and the injection material is uniformly injected from the middle of injection cavity 11.

[0032] In the embodiment, as shown in Figure 4 , Figure 5 Circumferential cooling assembly 30 includes circumferential ring insert 31 arranged vertically and spaced apart at both ends of injection cavity 11, circumferential ring insert 31 is provided with circumferential ring cooling flow channel 32, upper die holder 10 and lower die holder 20 are provided with circumferential cooling inlet and outlet flow channel 33 communicated with circumferential ring cooling flow channel 32, circumferential cooling inlet and outlet flow channel 33 has two, one of which is used to inject cooling water or cooling oil, which passes through circumferential ring cooling flow channel 32 and then flows through the other circumferential cooling inlet and outlet flow channel 33, and multiple injection cavities 11 can share the same circumferential cooling inlet and outlet flow channel 33, thereby reducing the number of flow channels. By arranging circumferential ring cooling flow channel 32 in the insert in injection cavity 11, the cooling water is closer to the end part of injection cavity 11 and the peripheral part, thereby improving the injection cooling effect and cooling uniformity. Optimally, circumferential ring cooling flow channel 32 is provided with annularly spaced inner diameter widening section 34, which increases the flow of circumferential ring cooling flow channel 32, and inner diameter widening section 34 cools the fan blade correspondingly.

[0033] In the embodiment, as shown in Figure 4 , Figure 6As shown, the central insert cooling assembly 40 includes a central annular insert 41 sleeved on the injection post 12. The central annular insert 41 has a central annular cooling channel 42, and the upper mold base 10 has a central cooling inlet / outlet channel 43 communicating with the central annular cooling channel 42. Cooling water or cooling oil is injected through one of the central cooling inlet / outlet channels 43, passes through the central annular cooling channel 42, and then flows through the other central cooling inlet / outlet channel 43. Multiple injection cavities 11 can share the same central cooling inlet / outlet channel 43, reducing the number of channels required. The added central annular cooling channel 42 provides rapid cooling for the inner side of the injection cavity 11, forming radially uniform cooling in conjunction with the circumferential annular cooling channel 32. Optimally, the central annular cooling channel 42 is arranged in a staggered, undulating pattern, allowing for more thorough cooling of the injection process through the path of the cooling water within the central annular cooling channel 42.

[0034] In this embodiment, as Figure 4 , Figure 7 As shown, both the upper mold base 10 and the lower mold base 20 are provided with peripheral annular cooling channels 50. The peripheral annular cooling channels 50 can also assist in injection cooling and provide conventional mold cooling.

[0035] Example 2: This utility model also provides a processing equipment having a fan blade injection mold as described above. Except for the fan blade injection mold, all other components are existing technology or commercially available parts.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A fan blade injection mold, characterized by, include: An upper mold base (10) and a lower mold base (20) are arranged sequentially from top to bottom. At least one injection cavity (11) is provided between the upper mold base (10) and the lower mold base (20). A vertically arranged injection column (12) is provided in the middle of the injection cavity (11). The circumferential cooling assembly (30) includes circumferential annular inserts (31) vertically spaced at both ends of the injection cavity (11), the circumferential annular inserts (31) having circumferential annular cooling channels (32), and the upper mold base (10) and lower mold base (20) having circumferential cooling inlet and outlet channels (33) communicating with the circumferential annular cooling channels (32). The central insert cooling assembly (40) includes a central annular insert (41) sleeved on the injection column (12), the central annular insert (41) having a central annular cooling channel (42), and the upper mold base (10) having a central cooling inlet / outlet channel (43) communicating with the central annular cooling channel (42).

2. The fan blade injection mold of claim 1, wherein, The circumferential annular cooling channel (32) is provided with an annularly spaced inner diameter widened section (34).

3. The fan blade injection mold of claim 1, wherein, The central annular cooling channel (42) is arranged in a staggered, undulating pattern.

4. The fan blade injection mold of claim 1, wherein, Both the upper mold base (10) and the lower mold base (20) are provided with an outer annular cooling channel (50).

5. The blade injection mold of claim 1, wherein, The upper mold base (10) is provided with a main injection port (13), and the main injection port (13) is connected in parallel with at least two injection columns (12).

6. The fan blade injection mold of claim 5, wherein, A vertical guide assembly (60) and a mold closing and positioning assembly (70) are provided between the upper mold base (10) and the lower mold base (20).

7. The fan blade injection mold of claim 6, wherein, The bottom of the lower mold base (20) is provided with a base plate (21), and a mold foot (22) is provided between the base plate (21) and the lower mold base (20).

8. The fan blade injection mold of claim 7, wherein, The base plate (21) is provided with a top material structure (23), and the top material structure (23) is provided with a top pin (24) that can extend into the bottom of the injection cavity (11).

9. A processing apparatus characterized by comprising: A fan blade injection mold as described in any one of claims 1-8.

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