Axial flow original body mold opening mold structure

Abstract

An axial flow original body mold opening mold structure comprises an upper fixing plate assembly and a lower fixing plate assembly and further comprises a mold core front mold plate and a mold core rear mold plate which are matched with each other, the mold core front mold plate is installed on the upper fixing plate assembly, and the mold core rear mold plate is installed on the lower fixing plate assembly. A forming cavity used for forming the axial flow fan blade is formed between the mold core front mold plate and the mold core rear mold plate. According to the axial flow original body mold opening mold structure, the front mold core and the front mold plate are integrally arranged, and the rear mold core and the rear mold plate are integrally arranged, namely, the forming cavities used for forming the axial flow fan blades are formed between the mold core front mold plate and the mold core rear mold plate and between the mold core front mold plate and the mold core rear mold plate, so that the mold frame can be compressed by 3-4 stages through the original structure of the mold frame, and the mold frame can be compressed by 3-4 stages; the size of the mold frame (mold) is greatly reduced, the mold cost is reduced, the mold frame can be thinned, the specification of an injection molding machine table is further reduced, in addition, the mold assembly time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an axial flow original mold opening mold structure. Background Art

[0002] like Figure 8-Figure 9 As shown, the traditional mold for producing axial fan blades includes a front mold plate 101, a rear mold plate 102, a front mold core 103 and a rear mold core 104. The front mold core 103 is inlaid on the front mold plate 101, and the rear mold core is inlaid on the rear mold plate 102. In this mold core inlay structure, the mold core and the mold frame are set separately, resulting in a large mold frame (mold) volume, high mold cost, and relatively large specifications of the required injection molding machine. At the same time, the mold assembly time is long, resulting in low production efficiency.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of the utility model is to provide an axial flow original mold opening mold structure with simple structure, small size, low cost, short assembly time and strong practicality, so as to overcome the shortcomings of the existing technology.

[0005] An axial flow original mold opening mold structure designed for this purpose includes an upper fixed plate assembly and a lower fixed plate assembly, and is characterized in that it also includes a core front template and a core rear template that cooperate with each other, the core front template is installed on the upper fixed plate assembly, and the core rear template is installed on the lower fixed plate assembly, and a molding cavity for molding axial flow fan blades is formed between the core front template and the core rear template.

[0006] A front forming cavity is provided on the front template of the mold core, and a rear forming cavity is provided on the rear template of the mold core. The front forming cavity and the rear forming cavity together form a forming cavity of the axial flow fan blade.

[0007] The front molding cavity and the rear molding cavity include a first molding portion for molding the hub of the axial flow fan blade, and the first molding portion is located in the middle of the molding cavity.

[0008] The front molding cavity and the rear molding cavity further include a second molding portion for molding the blades of the axial flow fan blade, and the second molding portion is annularly distributed on the circumference of the first molding portion.

[0009] The second molding portion of the front molding cavity is matched with the second molding portion of the rear molding cavity in a concave-convex manner.

[0010] A positioning boss is provided on the front template of the mold core, and a positioning groove is provided on the rear template of the mold core. The positioning boss and the positioning groove are positioned and matched.

[0011] A positioning column is provided on the positioning boss, a positioning sleeve is provided below the positioning groove, and the positioning column is inserted into the positioning sleeve for positioning.

[0012] A hot nozzle is arranged in the front template of the mold core, a runner component is arranged in the rear template of the mold core, a runner is arranged on the runner component, and the hot nozzle, the runner and the molding cavity are connected in sequence.

[0013] The flow channel includes a main flow channel and a branch flow channel annularly arranged around the main flow channel. The hot nozzle is connected to the main flow channel, the main flow channel is respectively connected to each branch flow channel, and the branch flow channel is connected to the molding cavity.

[0014] An injection port is provided on the upper fixed plate assembly, and the injection port is connected to the hot nozzle.

[0015] The axial flow original mold structure of the utility model is achieved by integrally arranging the front mold core and the front template, and integrally arranging the rear mold core and the rear template, that is, the mold core front template and the mold core rear template, and a molding cavity for molding axial flow fan blades is formed between the mold core front template and the mold core rear template. With this mold frame original structure, the mold frame can be compressed 3-4 levels, that is, the volume of the mold frame (mold) is greatly reduced, the mold cost is reduced, the mold frame can be thinned, and the specifications of the injection molding machine are reduced. In addition, the assembly time of the mold is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of a mold in one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the mold in one embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the exploded structure of the core front template, core rear template and axial flow fan blade in one embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the overall structure of the front mold plate of the mold core in one embodiment of the present utility model.

[0020] Figure 5 This is a schematic diagram of the overall structure of the core rear template in one embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the assembly structure of the core rear template, hot nozzle and runner components in one embodiment of the present invention.

[0022] Figure 7 Schematic diagram of the overall structure of the flow channel component in one embodiment of the present invention.

[0023] Figure 8 This is a cross-sectional view of a traditional mold.

[0024] Figure 9 Schematic diagram of the overall structure of a traditional mold. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 7 The axial flow original mold opening mold structure includes an upper fixed plate assembly 1 and a lower fixed plate assembly 2, and also includes a core front template 3 and a core rear template 4 that cooperate with each other. The core front template 3 is installed on the upper fixed plate assembly 1, and the core rear template 4 is installed on the lower fixed plate assembly 2. When the mold is closed, a molding cavity for molding the axial flow fan blade 20 is formed between the core front template 3 and the core rear template 4; the above structure can reduce the mold cost, reduce the production machine specifications, and reduce the production cost. Judging from the current improved results, due to the size of the mold, on average, one set of axial flow molds saves 23,000 yuan / set. Calculated based on an order of 60 sets of axial flow molds per year, the annual savings are expected to be around 1.2 million yuan.

[0027] A front molding cavity 5 is provided on the front mold plate 3 of the mold core, and a rear molding cavity 6 is provided on the rear mold plate 4 of the mold core. The front molding cavity 5 and the rear molding cavity 6 together form the molding cavity of the axial flow fan blade 20; the front mold plate 3 of the mold core is the A plate, and the rear mold plate 4 of the mold core is the B plate.

[0028] The front molding cavity 5 and the rear molding cavity 6 include a first molding portion 8 for molding the hub 7 of the axial flow fan blade 20 . The first molding portion 8 is located in the middle of the molding cavity.

[0029] The front molding cavity 5 and the rear molding cavity 6 further include a second molding portion 10 for molding the blades 9 of the axial flow fan blade 20 . The second molding portion 10 is annularly distributed around the circumference of the first molding portion 8 .

[0030] The second molding portion 10 of the front molding cavity 5 and the second molding portion 10 of the rear molding cavity 6 are matched in a concave-convex manner.

[0031] A positioning boss 11 is provided on the core front template 3, and a positioning groove 12 is provided on the core rear template 4. The positioning boss 11 and the positioning groove 12 are positioned and matched with each other to improve the matching accuracy of the core front template 3 and the core rear template 4; the positioning boss 11 is located at the four corners of the core front template 3, and the positioning groove 12 is located at the four corners of the core rear template 4.

[0032] A positioning column 13 is provided on the positioning boss 11, and a positioning sleeve 14 is provided below the positioning groove 12. The positioning column 13 is inserted into the positioning sleeve 14 to improve the matching accuracy of the core front template 3 and the core rear template 4.

[0033] A hot nozzle 15 is provided in the front template 3 of the core, and a runner component 16 is provided in the rear template 4 of the core. A runner is provided on the runner component 16. The hot nozzle 15, the runner and the molding cavity are connected in sequence. The hot nozzle 15 is an open hot nozzle or a needle valve hot nozzle. The open hot nozzle can reduce the volume of the mold.

[0034] The flow channel includes a main channel 17 and a branch channel 18 annularly arranged around the main channel 17. The hot nozzle 15 is connected to the main channel 17, and the main channel 17 is connected to each branch channel 18 respectively. The branch channel 18 is connected to the molding cavity. This structure can make the plastic flow evenly to the molding cavity.

[0035] An injection port 19 is provided on the upper fixed plate assembly 1 , and the injection port 19 is connected to the hot nozzle 15 ; the molten plastic enters the hot nozzle 15 through the injection port 19 , then flows into the main channel 17 , and then flows into the molding cavity through the branch channel 18 .

[0036] The upper fixing plate assembly 1 at least includes an upper fixing plate, and the lower fixing plate assembly 2 includes a lower fixing plate and a mold foot. The mold foot is installed on the lower fixing plate, and the core rear mold plate 4 is installed on the mold foot.

[0037] The following table is a comparison chart of the traditional mold and the mold of this embodiment;

[0038] Traditional molds The mold of this embodiment Mold size 750*750*780mm 600*600*700mm Mould frame weight 3444Kg 1978Kg Formwork material cost (tax included) 38,575 yuan 22,156 yuan Steel cost savings 16,419 yuan Required molding machine 530T 360T Machine Fees 350 / H 230 / H Fee / day 8400 yuan / day 5520 yuan / day Machine cost savings after the change 2880 yuan / day

[0039] As can be seen from the above table, the traditional mold size is 750*750*780mm, and the required injection molding machine is 530T. The mold size of this embodiment can be compressed to 600*600*700mm, and the injection molding machine is compressed from the original 530T to 360T. Therefore, from the above analysis data, it can be seen that the mold frame is changed to the original one, and the material cost and production cost are effectively reduced.

[0040] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An axial flow original mold opening mold structure, comprising an upper fixed plate assembly (1) and a lower fixed plate assembly (2), characterized in that: The mold core further comprises a front mold plate (3) and a rear mold plate (4) that cooperate with each other, the front mold plate (3) being mounted on the upper fixed plate assembly (1), and the rear mold plate (4) being mounted on the lower fixed plate assembly (2), and a molding cavity for molding the axial flow fan blade (20) being formed between the front mold plate (3) and the rear mold plate (4).

2. The axial flow original mold opening mold structure according to claim 1, characterized in that: A front molding cavity (5) is provided on the mold core front template (3), and a rear molding cavity (6) is provided on the mold core rear template (4); the front molding cavity (5) and the rear molding cavity (6) together form a molding cavity of the axial flow fan blade (20).

3. The axial flow original mold opening mold structure according to claim 2, characterized in that: The front molding cavity (5) and the rear molding cavity (6) comprise a first molding portion (8) of a hub (7) for molding an axial flow fan blade (20), and the first molding portion (8) is located in the middle of the molding cavity.

4. The axial flow original mold opening mold structure according to claim 3, characterized in that: The front molding cavity (5) and the rear molding cavity (6) further include a second molding portion (10) for molding the blades (9) of the axial flow fan blade (20), and the second molding portion (10) is annularly distributed on the circumference of the first molding portion (8).

5. The axial flow original mold opening mold structure according to claim 3, characterized in that: The second molding portion (10) of the front molding cavity (5) and the second molding portion (10) of the rear molding cavity (6) are matched in a concave-convex manner.

6. The axial flow original mold opening mold structure according to claim 1, characterized in that: A positioning boss (11) is provided on the mold core front template (3), and a positioning groove (12) is provided on the mold core rear template (4), and the positioning boss (11) and the positioning groove (12) are positioned and matched.

7. The axial flow original mold opening mold structure according to claim 6, characterized in that: A positioning column (13) is provided on the positioning boss (11), a positioning sleeve (14) is provided below the positioning groove (12), and the positioning column (13) is inserted into the positioning sleeve (14) for positioning.

8. The axial flow original mold opening structure according to claim 1, characterized in that: A hot nozzle (15) is provided in the front mold plate (3) of the mold core, a flow channel component (16) is provided in the rear mold plate (4), a flow channel is provided on the flow channel component (16), and the hot nozzle (15), the flow channel and the molding cavity are connected in sequence.

9. The axial flow original mold opening mold structure according to claim 8, characterized in that: The flow channel includes a main flow channel (17) and a branch flow channel (18) annularly arranged around the main flow channel (17); the hot nozzle (15) is connected to the main flow channel (17); the main flow channel (17) is respectively connected to each branch flow channel (18); and the branch flow channel (18) is connected to the molding cavity.

10. The axial flow original mold opening structure according to claim 8, characterized in that: An injection port (19) is provided on the upper fixed plate assembly (1), and the injection port (19) is connected to the hot nozzle (15).

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