Forming die of fan shield

Abstract

The utility model provides a forming die for a fan shield, and belongs to the technical field of die manufacturing. The forming die of the fan shield comprises an upper top plate, a female die, an upper die core, a male die, a lower die core, a lower mounting plate, a lower bottom plate, a top plate and a vertical plate, a mounting groove is formed in the bottom of a lower die groove, an ejection block is arranged in the mounting groove, a first through hole penetrating through the male die is formed in the bottom of the mounting groove, a center ejection rod is arranged in the first through hole, and an ejection air cylinder is fixed to the lower mounting plate. The upper end of the center ejector rod is fixed to the ejector block, the lower end of the center ejector rod is connected with the ejector air cylinder, a panel is placed on the upper surface of the lower mold core and connected with the lower mold core through a bolt, an inner cavity is formed between the lower mold core and the ejector block, a magnetic block is arranged in the inner cavity, and a first ejector rod is fixed to the ejector plate. And the first ejector rod upwards penetrates through the lower mounting plate, the male die, the lower die core and the panel in sequence. And after being ejected by the central ejector rod, the lower mold core and the panel are directly pulled out from the lower mold groove, and the panel with a large area can be quickly replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold manufacturing and relates to a molding mold for a fan guard. Background Art

[0002] Some fan guards are made of metal, while others are made of plastic. They are parts that protect the fan blades. Plastic molding is formed in a mold. The molds used include an upper mold and a lower mold. When manufacturing a fan guard, the plastic material is placed on the lower mold, and the upper mold and the lower mold are molded together, and the fan guard is formed. Fan guards are often designed with some iconic graphics or texts that are molded synchronously. When these different graphics or texts need to be replaced, the entire lower mold or lower mold needs to be replaced, which is very wasteful of materials, and the replacement is also more troublesome, and the mold needs to be disassembled and reassembled. Therefore, people engrave these frequently changed patterns or texts on an inlay. When the content needs to be changed, the inlay can be directly replaced without changing the mold, saving replacement time. However, some inlays are tightly embedded in the lower mold or upper mold, and are not easy to remove, which results in a slightly longer time for disassembly of the inlay. Utility Model Content

[0003] The utility model aims to solve the above problems in the prior art and proposes a fan guard forming die, which is used for fast replacement of large-area panels, and is convenient and quick.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a forming mold for a fan guard, comprising an upper top plate, a concave mold, an upper mold core, a convex mold, a lower mold core, a lower mounting plate, a lower bottom plate, a top plate and a vertical plate, the concave mold is fixed on the upper top plate, the convex mold is fixed on the lower mounting plate, the top plate is located between the two vertical plates, and the lower mounting plate is fixed to the lower bottom plate through the vertical plate, characterized in that the concave mold is fixed to the upper top plate by bolts, an upper mold groove for accommodating the upper mold core is opened in the concave mold, the upper mold core is fixed to the concave mold, a lower mold groove for accommodating the lower mold core is opened at the upper end of the convex mold, and a mounting groove is opened at the bottom of the lower mold groove, An ejector block is installed in the mounting groove, a first through hole penetrating the punch is opened at the bottom of the mounting groove, a second through hole aligned with the first through hole is opened on the lower mounting plate, a center ejector rod is arranged in the first through hole, an ejector cylinder is fixed on the lower mounting plate, the upper end of the center ejector rod is fixed to the ejector block, and the lower end of the center ejector rod is connected to the ejector cylinder, a panel is placed on the upper surface of the lower mold core, the panel is connected to the lower mold core by bolts, an inner cavity is opened between the lower mold core and the ejector block, a magnetic block is built in the inner cavity, a first ejector rod is fixed on the ejector plate, and the first ejector rod passes through the lower mounting plate, the punch, the lower mold core and the panel in sequence upward.

[0005] Furthermore, the edge of the upper die core has a convex edge, the side wall of the upper die groove is provided with a step, the convex edge rests on the step, the convex edge is provided with a through hole, the step is provided with a threaded hole, and the convex edge and the step are fixed by bolts.

[0006] Furthermore, the upper end surface of the magnetic block is in contact with the lower mold core, and the lower end surface of the magnetic block is in contact with the ejection block.

[0007] Furthermore, patterns or words are engraved on the upper surface of the panel.

[0008] Furthermore, a clearance hole for ejecting the cylinder is provided on the top plate.

[0009] Furthermore, a plurality of guide columns are fixed on the lower base plate, the upper ends of the guide columns are against the lower mounting plate, the guide columns pass through the top plate, and the guide columns are covered with return springs, the lower ends of the return springs are against the top plate, and the upper ends of the return springs are against the lower mounting plate.

[0010] Furthermore, a second ejector rod is fixed on the top plate, and the second ejector rod passes through the lower mounting plate and the punch upward in sequence.

[0011] Due to the adsorption force of the magnetic block, the lower die core is not easy to separate from the lower die groove.

[0012] After pressing and forming, the hydraulic press drives the upper ejector plate to move downward, the telescopic rod of the discharge cylinder passes through the lower bottom plate and lifts up the ejector plate, the ejector plate moves upward along the guide column, and the first ejector rod and the second ejector rod eject the fan shroud product, the worker takes the product out of the mold, the piston rod of the discharge cylinder descends, and the return spring firmly presses the ejector plate against the lower bottom plate. When the insert needs to be replaced, the ejector cylinder is started to drive the central ejector rod to rise, and the ejector block, the lower mold core and the panel are pushed upward out of the lower mold groove together. The worker overcomes the adsorption force of the magnetic block to take out the lower mold core and the panel, unscrew the bolts, and the panel can be replaced.

[0013] Compared with the prior art, the forming mold of the fan guard has the following advantages:

[0014] 1. The insert can be replaced quickly. After being ejected by the center ejector, the lower die core and the panel are directly pulled out from the lower die groove, the panel and the lower die core are separated, the lower die core is connected to the new insert to be used by bolts, and then inserted into the lower die groove. It is automatically adsorbed on the ejection block by the magnetic block to complete the quick replacement.

[0015] 2. The built-in magnetic block makes the lower die core and the punch fit firmly, preventing the lower die core from escaping from the lower die groove when ejecting the product, and it is convenient to replace the panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the molding die of the fan shroud.

[0017] In the figure, 1, upper ejector plate; 2, concave die; 3, upper die core; 4, punch; 5, lower die core; 6, lower mounting plate; 7, lower base plate; 8, top plate; 9, vertical plate; 10, ejector block; 11, center ejector rod; 12, ejector cylinder; 13, panel; 14, magnetic block; 15, first ejector rod; 16, convex edge; 17, step; 18, clearance hole; 19, guide column; 20, return spring; 21, second ejector rod. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 As shown, the molding mold of the fan guard includes an upper top plate 81, a die 2, an upper mold core 3, a punch 4, a lower mold core 5, a lower mounting plate 6, a lower base plate 7, a top plate 8 and a vertical plate 9. The die 2 is fixed on the upper top plate 81, the punch 4 is fixed on the lower mounting plate 6, the top plate 8 is located between the two vertical plates 9, and the lower mounting plate 6 is fixed on the lower base plate 7 through the vertical plate 9.

[0020] The concave die 2 is fixed to the upper top plate 81 by bolts, and an upper die groove for accommodating the upper die core 3 is opened in the concave die 2, and the upper die core 3 is fixed to the concave die 2. A lower die groove for accommodating the lower die core 5 is opened at the upper end of the convex die 4, and a mounting groove is opened at the bottom of the lower die groove. An ejection block 10 is built in the mounting groove. A first through hole penetrating the convex die 4 is opened at the bottom of the mounting groove. A second through hole aligned with the first through hole is opened on the lower mounting plate 6. A central ejector rod 11 is arranged in the first through hole. An ejector block 10 is fixed on the lower mounting plate 6. The upper end of the center ejector rod 11 is fixed to the ejection block 10, and the lower end of the center ejector rod 11 is connected to the ejection cylinder 12. A panel 13 is placed on the upper surface of the lower mold core 5, and the panel 13 is connected to the lower mold core 5 by bolts. An inner cavity is opened between the lower mold core 5 and the ejection block 10, and a magnetic block 14 is built in the inner cavity. A first ejector rod 15 is fixed on the top plate 8, and the first ejector rod 15 passes through the lower mounting plate 6, the punch 4, the lower mold core 5 and the panel 13 in sequence.

[0021] The upper die core 3 has a convex edge 16 on its edge, a step 17 is formed on the side wall of the upper die groove, the convex edge 16 abuts against the step 17, a through hole is formed on the convex edge 16, a threaded hole is formed on the step 17, and the convex edge 16 and the step 17 are fixed by bolts.

[0022] The upper surface of the panel 13 is engraved with patterns or words. Various iconic patterns or words can be formed on the surface of the fan guard through the panel 13. When the pattern or word needs to be replaced, only the panel needs to be replaced.

[0023] The top plate 8 is provided with a clearance hole 18 for the ejection cylinder 12, so that the top plate 8 can avoid the ejection cylinder 12 after moving upward.

[0024] A plurality of guide columns 19 are fixed on the lower base plate 7 , the upper ends of the guide columns 19 abut against the lower mounting plate 6 , the guide columns 19 pass through the top plate 8 , and the guide columns 19 are covered with a return spring 20 , the lower ends of the return springs 20 abut against the top plate 8 , and the upper ends of the return springs 20 abut against the lower mounting plate 6 .

[0025] A second ejector rod 21 is fixed on the top plate 8, and the second ejector rod 21 passes through the lower mounting plate 6 and the punch 4 in sequence. The second ejector rod 21 cooperates with the first ejector rod 15 to easily push the fan guard product away from the punch 4.

[0026] The upper end surface of the magnetic block 14 is in contact with the lower die core 5, and the lower end surface of the magnetic block 14 is in contact with the ejection block 10. Due to the adsorption force of the magnetic block 14, the lower die core 5 is not easy to be separated from the lower die groove.

[0027] After pressing and forming, the hydraulic press drives the upper ejector plate 81 to move downward, the telescopic rod of the discharge cylinder passes through the lower bottom plate 7 and lifts the ejector plate 8, the ejector plate 8 moves upward along the guide column 19, and the first ejector rod 15 and the second ejector rod 21 eject the fan shroud product, the worker takes the product out of the mold, the piston rod of the discharge cylinder descends, and the return spring 20 firmly presses the ejector plate 8 against the lower bottom plate 7. When it is necessary to replace the insert, start the ejector cylinder 12, drive the central ejector rod 11 to rise, and push the ejector block 10, the lower mold core 5 and the panel 13 upward out of the lower mold groove. The worker overcomes the adsorption force of the magnetic block 14 to take out the lower mold core 5 and the panel 13 upward, unscrew the bolts, and replace the panel 13.

[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A fan guard forming die, comprising an upper top plate, a concave die, an upper die core, a convex die, a lower die core, a lower mounting plate, a lower bottom plate, a top plate and a vertical plate, wherein the concave die is fixed on the upper top plate, the convex die is fixed on the lower mounting plate, the top plate is located between the two vertical plates, and the lower mounting plate is fixed on the lower bottom plate through the vertical plate, characterized in that: The concave die is fixed to the upper top plate by bolts, and an upper die groove for accommodating the upper die core is opened in the concave die, and the upper die core is fixed to the concave die, a lower die groove for accommodating the lower die core is opened at the upper end of the punch, a mounting groove is opened at the bottom of the lower die groove, an ejection block is built in the mounting groove, a first through hole penetrating the punch is opened at the bottom of the mounting groove, a second through hole aligned with the first through hole is opened on the lower mounting plate, a center ejector rod is arranged in the first through hole, an ejection cylinder is fixed on the lower mounting plate, the upper end of the center ejector rod is fixed to the ejection block, and the lower end of the center ejector rod is connected to the ejection cylinder, a panel is placed on the upper surface of the lower die core, the panel is connected to the lower die core by bolts, an inner cavity is opened between the lower die core and the ejection block, a magnetic block is built in the inner cavity, a first ejector rod is fixed to the top plate, and the first ejector rod passes through the lower mounting plate, the punch, the lower die core and the panel in sequence upward.

2. A fan guard molding die according to claim 1, characterized in that: The upper die core edge has a convex edge, the upper die groove side wall is provided with a step, the convex edge abuts against the step, the convex edge is provided with a through hole, the step is provided with a threaded hole, and the convex edge and the step are fixed by bolt connection.

3. A fan guard molding die according to claim 1, characterized in that: The upper end surface of the magnetic block is in contact with the lower mold core, and the lower end surface of the magnetic block is in contact with the ejection block.

4. A fan guard forming die according to claim 1, characterized in that: The upper surface of the panel is engraved with patterns or words.

5. The fan guard molding die according to claim 1, characterized in that: The top plate is provided with a clearance hole for ejecting the cylinder.

6. The fan guard molding die according to claim 1, characterized in that: A plurality of guide columns are fixed on the lower bottom plate, the upper ends of the guide columns abut against the lower mounting plate, the guide columns pass through the top plate, and the guide columns are covered with return springs, the lower ends of the return springs abut against the top plate, and the upper ends of the return springs abut against the lower mounting plate.

7. The fan guard molding die according to claim 1, characterized in that: A second ejector rod is fixed on the top plate, and the second ejector rod passes through the lower mounting plate and the punch upward in sequence.

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