A fan plastic shroud manufacturing mold

Abstract

The utility model discloses a kind of fan plastic guard shield manufacturing mould, it relates to plastic product processing technical field, including base, bracket is fixed on base, first piston rod and second piston rod are slidably connected in the inside of bracket, first piston rod is detachably connected with replacement plate in the inside end of bracket, support frame is fixed to the inside end of bracket towards second piston rod, upper mould is fixed to the end of support frame away from second piston rod, first cylinder is connected with first piston rod, second cylinder is connected with second piston rod, vertical rod is fixed in the inside of bracket, lower mould is fixed to the end of vertical rod away from bracket, through groove is equipped in the end of lower mould away from upper mould, cutting piece is slidably connected with the side surface of upper mould and lower mould;The mould can directly carry out full-angle edge trimming, improve processing efficiency, and set arc surface, realize cutting and grinding integrated operation, further improve processing efficiency, also have the function that replacement plate is replaced conveniently, can quickly form trademark information on fan plastic guard shield.

Description

Technical Field

[0001] This utility model belongs to the field of plastic product processing technology, and in particular relates to a mold for manufacturing a plastic fan cover. Background Technology

[0002] Fan guards are made of either metal or molded plastic, and they are components that protect the fan blades. Plastic fan guards are formed in a mold, which includes an upper mold and a lower mold. During manufacturing, the plastic material is placed on the lower mold, and the upper and lower molds are then closed to form the fan guard. Fan guards often feature distinctive graphics or text that are molded simultaneously. When these graphics or text need to be changed, the entire lower mold or a single piece of the mold must be replaced, which is wasteful of material and cumbersome, requiring disassembly and reassembly of the mold. Therefore, these frequently changed graphics or text are engraved on a piece. When the content needs to be changed, only the piece needs to be replaced, without needing to replace the mold, saving time. However, some pieces are tightly fitted into the lower or upper mold and are not easy to remove, resulting in a slightly longer disassembly time.

[0003] A prior art disclosure (CN201720603570.9) discloses a fan cover manufacturing mold, comprising an upper L-shaped support rod, an electric cylinder, a fixed column, a lower L-shaped support rod, an annular fixed plate, a fixed ring, a scraper, a connecting ring, a knife handle, and a plastic slot. The lower end of the upper L-shaped support rod is fitted with an electric cylinder, and the lower end of the electric cylinder is fitted with a fixed column. The right end of the fixed column is fitted with the lower L-shaped support rod. This design allows for automatic lifting and lowering. The connecting ring is mounted on the fixed ring, and the upper end of the connecting ring is fitted with a scraper and a knife handle. The right end of the scraper is fitted with a knife handle, and the upper end of the knife handle is fitted with a plastic slot. The plastic slot is mounted on the right end of the annular fixed plate. This design allows for real-time scraping of extruded raw materials. This invention is convenient to use, easy to operate, allows for rotation and lifting, enables real-time scraping of raw materials, and exhibits good stability and high reliability.

[0004] Existing technology uses a scraper on the outer wall of the mold. The scraper moves around the circumference of the mold to remove the flash formed by the overflowing slurry in the gaps. The blade of the scraper is set at an angle to the mold, so the blade can only remove the flash when rotating in one direction. The rotation direction needs to be restricted during use, which is inconvenient. Summary of the Invention

[0005] The purpose of this utility model is to provide a mold for manufacturing a fan plastic cover. This mold can directly trim the edges at all angles, improving processing efficiency. It also features a rounded surface to achieve integrated cutting and grinding operations, further improving processing efficiency. In addition, it has the function of convenient plate replacement and can quickly form trademark information on the fan plastic cover.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A mold for manufacturing a fan plastic cover includes a base, on which a bracket is fixed. A first piston rod and a second piston rod are slidably connected inside the bracket. A replacement plate is detachably connected to the inner end of the first piston rod within the bracket. A support frame is fixed to the inner end of the second piston rod facing the bracket. An upper mold is fixed to the end of the support frame away from the second piston rod. A first cylinder is connected to the first piston rod and fixed to the base. A second cylinder is connected to the second piston rod and fixed to the top of the bracket. A vertical rod is fixed inside the bracket. A lower mold is fixed to the end of the vertical rod away from the bracket. A through groove is provided at the end of the lower mold away from the upper mold. The replacement plate has the same inner diameter as the through groove. A cutting element is slidably connected to the sides of the upper mold and the lower mold.

[0008] Furthermore, both the upper mold and the lower mold have stepped grooves on their sides.

[0009] Furthermore, the cutting component includes a sliding frame slidably connected to the outside of the stepped groove. A movable frame is provided at the end of the sliding frame away from the stepped groove. The sliding frame slides inside the movable frame. An annular track is provided at the end of the movable frame away from the sliding frame. The annular track is fixed on the support. An annular groove is provided inside the annular track. The movable frame slides along the inside of the annular groove. A motor is fixed on the movable frame. The motor is connected to a drive shaft. A rotating wheel is fixed outside the drive shaft. The rotating wheel contacts the side of the annular track.

[0010] Furthermore, the sliding frame is connected to a movable rod at the end facing the movable frame, and a third cylinder is fixed to the end of the movable rod away from the sliding frame. The third cylinder is fixed on the movable frame.

[0011] Furthermore, a functional block is fixed inside the sliding frame, with one side of the functional block being a blade-shaped surface and the other side being an arc-shaped surface.

[0012] Furthermore, an abutment rod is fixed to the side of the first piston rod, and a pin is fixed to the end of the abutment rod away from the first piston rod. A limit switch is fixed inside the bracket, and the limit switch is connected in series with the first cylinder.

[0013] In summary, the beneficial technical effects of this utility model are as follows:

[0014] By setting a sliding frame that fits the stepped groove, and setting functional blocks inside the sliding frame to cut and trim the edges of the molded product, the mold can be directly trimmed at all angles after molding by a motor-driven movement, thus improving processing efficiency.

[0015] By setting arc surfaces on the functional blocks, cutting and grinding can be integrated into one operation, further improving processing efficiency;

[0016] It also features a convenient replacement plate function, which can quickly form trademark information on the fan plastic cover, and has a replacement plate limit movement control structure to prevent the replacement plate from protruding into the lower mold, thus improving processing quality. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a mold for manufacturing a fan plastic cover according to this embodiment;

[0019] Figure 2 This embodiment is a mold for manufacturing a fan plastic cover. Figure 1 Another perspective illustration;

[0020] Figure 3 This is a schematic diagram of the sliding block structure of a mold for manufacturing a fan plastic cover in this embodiment.

[0021] In the diagram: 1. Base; 2. Bracket; 3. First piston rod; 4. Second piston rod; 5. Replacement plate; 6. Support frame; 7. Upper mold; 8. First cylinder; 9. Second cylinder; 10. Vertical rod; 11. Lower mold; 12. Stepped groove; 13. Sliding frame; 14. Moving frame; 15. Annular track; 16. Annular groove; 17. Motor; 18. Drive shaft; 19. Rotating wheel; 20. Movable rod; 21. Third cylinder; 22. Functional block; 23. Blade-shaped surface; 24. Arc surface; 25. Contact rod; 26. Ejector pin; 27. Limit switch. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3This utility model provides a technical solution: a mold for manufacturing a fan plastic cover, including a base 1, a bracket 2 fixed on the base 1, a first piston rod 3 and a second piston rod 4 slidably connected inside the bracket 2, a replacement plate 5 detachably connected to the inner end of the first piston rod 3 located inside the bracket 2, a support frame 6 fixed to the inner end of the second piston rod 4, an upper mold 7 fixed to the end of the support frame 6 away from the second piston rod 4, a first cylinder 8 connected to the first piston rod 3 and fixed to the base 1, a second cylinder 9 connected to the second piston rod 4 and fixed to the top of the bracket 2, a vertical rod 10 fixed inside the bracket 2, a lower mold 11 fixed to the end of the vertical rod 10 away from the bracket 2, a through groove provided at the end of the lower mold 11 away from the upper mold 7, the replacement plate 5 having the same inner diameter as the through groove, and a cutting element slidably connected to the sides of the upper mold 7 and the lower mold 11.

[0025] Both the upper mold 7 and the lower mold 11 have stepped grooves 12 on their sides.

[0026] The cutting component includes a sliding frame 13 slidably connected to the outside of the stepped groove 12. A movable frame 14 is provided at the end of the sliding frame 13 away from the stepped groove 12. The sliding frame 13 slides inside the movable frame 14. An annular track 15 is provided at the end of the movable frame 14 away from the sliding frame 13. The annular track 15 is fixed on the bracket 2. An annular groove 16 is provided inside the annular track 15. The movable frame 14 slides along the inside of the annular groove 16. A motor 17 is fixed on the movable frame 14. The motor 17 is connected to a drive shaft 18. A rotating wheel 19 is fixed outside the drive shaft 18. The rotating wheel 19 contacts the side of the annular track 15.

[0027] A movable rod 20 is connected to the end of the sliding frame 13 facing the movable frame 14. A third cylinder 21 is fixed to the end of the movable rod 20 away from the sliding frame 13. The third cylinder 21 is fixed on the movable frame 14.

[0028] A functional block 22 is fixed inside the sliding frame 13. One side of the functional block 22 is a blade-shaped surface 23, and the other side is a circular arc surface 24.

[0029] The sliding frame 13 fits into the side of the stepped groove 12. After being driven by the motor 17, the rotating wheel 19 rotates. Since the rotating wheel 19 is in contact with the side of the annular track 15, it can move along the side of the annular track 15 after rotating, driving the moving frame 14 and the sliding frame 13 to move. The sliding frame 13, which fits into the stepped groove 12, can move against the side of the upper mold 7 and the lower mold 11. The cutting edge protrusion can be cut through the blade surface 23 on the side of the functional block 22. After cutting, the arc surface 24 can be polished, thereby realizing the integrated operation of cutting and polishing, and improving processing efficiency.

[0030] In this embodiment, the replacement plate 5 can be raised and lowered by the first cylinder 8, and an abutment rod 25 is fixed on the side of the first piston rod 3. A pin 26 is fixed on the end of the abutment rod 25 away from the first piston rod 3. A limit switch 27 is fixed inside the bracket 2. The limit switch 27 is connected in series with the first cylinder 8.

[0031] The replacement plate 5 is threadedly connected to the first piston rod 3, which facilitates the replacement of the replacement plate 5. The replacement plate 5 is engraved with logos and other information on the surface facing the lower mold 11, which facilitates the formation of trademark information on the fan plastic cover. At the same time, when the first piston rod 3 extends, in order to ensure that the replacement plate 5 is flush with the bottom of the lower mold 11 after entering the lower mold 11, an ejector pin 26 is set on the side of the first piston rod 3. By determining the height of the limit switch 27, the entry position of the replacement plate 5 is determined. Then, after the ejector pin 26 contacts the limit switch 27, the first cylinder 8 can be closed, thereby stopping the movement of the replacement plate 5.

[0032] The working principle of this utility model is as follows: By setting a sliding frame 13 that fits the stepped groove 12, a functional block 22 is set inside the sliding frame 13 to perform edge cutting and trimming after the product is formed. Specifically, it is driven by a motor 17 to move, so that after forming, edge trimming can be performed directly at all angles, improving processing efficiency. In addition, an arc surface 24 is set to realize the integrated operation of cutting and grinding, further improving processing efficiency. At the same time, it also has the function of convenient replacement of the plate 5, which can quickly form trademark information on the fan plastic cover.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fan plastic shroud manufacturing mold characterized by, The system includes a base (1), on which a bracket (2) is fixed. A first piston rod (3) and a second piston rod (4) are slidably connected inside the bracket (2). A replacement plate (5) is detachably connected to the end of the first piston rod (3) located inside the bracket (2). A support frame (6) is fixed to the end of the second piston rod (4) facing inside the bracket (2). An upper mold (7) is fixed to the end of the support frame (6) away from the second piston rod (4). A first cylinder (8) is connected to the first piston rod (3). The first cylinder (8) is fixed on the base (1), the second piston rod (4) is connected to the second cylinder (9), the second cylinder (9) is fixed on the top of the bracket (2), the bracket (2) has a vertical rod (10) fixed inside, the end of the vertical rod (10) away from the bracket (2) is fixed with a lower mold (11), the end of the lower mold (11) away from the upper mold (7) is provided with a through groove, the replacement plate (5) is consistent with the inner diameter of the through groove, and the upper mold (7) and the lower mold (11) are slidably connected with a cutting part on the side.

2. The mold for manufacturing a fan plastic cover according to claim 1, characterized in that, Both the upper mold (7) and the lower mold (11) have stepped grooves (12) on their sides.

3. The mold for manufacturing a fan plastic cover according to claim 2, characterized in that, The cutting component includes a sliding frame (13) slidably connected to the outside of the stepped groove (12). A movable frame (14) is provided at the end of the sliding frame (13) away from the stepped groove (12). The sliding frame (13) slides inside the movable frame (14). An annular track (15) is provided at the end of the movable frame (14) away from the sliding frame (13). The annular track (15) is fixed on the bracket (2). An annular groove (16) is provided inside the annular track (15). The movable frame (14) slides along the inside of the annular groove (16). A motor (17) is fixed on the movable frame (14). The motor (17) is connected to a drive shaft (18). A rotating wheel (19) is fixed outside the drive shaft (18). The rotating wheel (19) contacts the side of the annular track (15).

4. The mold for manufacturing a fan plastic cover according to claim 3, characterized in that, The sliding frame (13) is connected to a movable rod (20) at the end facing the movable frame (14). A third cylinder (21) is fixed at the end of the movable rod (20) away from the sliding frame (13). The third cylinder (21) is fixed on the movable frame (14).

5. The mold for manufacturing a fan plastic cover according to claim 3, characterized in that, The sliding frame (13) has a functional block (22) fixed inside. One side of the functional block (22) is a blade-shaped surface (23), and the other side is an arc surface (24).

6. The mold for manufacturing a fan plastic cover according to claim 1, characterized in that, A contact rod (25) is fixed on the side of the first piston rod (3), and a pin (26) is fixed on the end of the contact rod (25) away from the first piston rod (3). A limit switch (27) is fixed inside the bracket (2), and the limit switch (27) is connected in series with the first cylinder (8).

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