Double-station rotational molding mold for water buoy
By designing a dual-station rotational molding die for floating pontoons, the problem of existing molds being unable to form structures with positioning lugs was solved, enabling efficient and high-quality machining of complex surfaces of pontoons and saving costs.
Patent Information
- Application Number
- CN202423281003.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing blow molding dies for floats are difficult to mold simultaneously with floats that have positioning lugs, resulting in low processing efficiency and generally poor quality of plastic parts.
The system employs a dual-station rotational molding die for floating pontoons, including an upper die and a lower die. By setting up multiple molding parts and cooling channels, the complex shape of the pontoon can be formed in one step, and the molding process can be accelerated by using coolant.
It enables one-time molding of complex surfaces of pontoons, improves processing efficiency and plastic part quality, saves mold development costs, and speeds up molding.
Smart Images
Figure CN223604820U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to rotational moulding die technical field relates to a water float double station rotational moulding die. BACKGROUND
[0002] The float product is mainly used in floating wharf, floating bridge, water platform, offshore platform, water leisure and entertainment etc. The float adopts strong high polymer polyethylene material, has good resistance and impact resistance, can prevent ultraviolet, prevent frost, resist seawater chemical agent oil stain etc. Erosion. Can automatically rise and fall with water. When the float is processed, the blow molding die is generally used for blow molding.
[0003] But with the increase of the float category, the float with the positioning ear structure appears slowly, which is convenient for positioning and connecting the float in use. The existing float blow molding die is difficult to form the square positioning ear structure of the float synchronously, and needs to be welded or processed again after blow molding, so the processing efficiency is low and the plastic part quality is general. SUMMARY
[0004] The utility model discloses a water float double station rotational moulding die.
[0005] In order to achieve the above object, the utility model adopts the following technical scheme:
[0006] A water float double station rotational moulding die, comprising an upper die and a lower die, the upper die and the lower die are matched with each other, a forming cavity is formed between the lower die and the upper die, the lower die comprises a first forming part and a second forming part, the first forming part and the second forming part are fixedly connected, the surface of the first forming part is provided with a bottom surface forming cavity, the inside of the second forming part is provided with a lower edge forming cavity, the upper die comprises a third forming part and a fourth forming part, the third forming part and the fourth forming part are fixedly connected, the surface of the third forming part is provided with a top surface forming cavity, the inside of the fourth forming part is provided with an upper edge forming cavity, a float connecting ear forming cavity is arranged between the second forming part and the third forming part, and a through hole is arranged on one side of the second forming part and the third forming part.
[0007] In the water float double station rotational moulding die, the first forming part is provided with a first positioning groove on the contact surface of the second forming part, the second forming part is provided with a first positioning block, and the second forming part is fixed in the first positioning groove through the first positioning block.
[0008] In the water float double station rotational moulding die, the inner edge of the lower edge forming cavity is flush with the edge of the bottom surface forming cavity.
[0009] In the water floating cylinder double-station rotational molding forming mold, the fourth forming piece is provided with a second positioning groove on a contact surface with the third forming piece, the third forming piece is provided with a second positioning block, and the third forming piece is fixed in the second positioning groove through the second positioning block.
[0010] In the water floating cylinder double-station rotational molding forming mold, the inner edge of the upper edge forming cavity is flush with the edge of the top surface forming cavity.
[0011] In the water floating cylinder double-station rotational molding forming mold, the inner edge of the upper edge forming cavity and the inner edge of the lower edge forming cavity are provided with a strip-shaped part, and the inner edge of the upper edge forming cavity and the inner edge of the lower edge forming cavity are flush with each other.
[0012] In the water floating cylinder double-station rotational molding forming mold, the cylinder connecting ear forming cavity is provided with six groups, and the cylinder connecting ear forming cavity is located at the outer edge of the cavity, the cylinder connecting ear forming cavity is composed of a first forming block and a second forming block, and the first forming block and the second forming block are mutually butted.
[0013] In the water floating cylinder double-station rotational molding forming mold, the cavity is a double-station water floating cylinder cavity.
[0014] In the water floating cylinder double-station rotational molding forming mold, half of the through hole is located on the second forming piece, and the other half of the through hole is located on the third forming piece.
[0015] In the water floating cylinder double-station rotational molding forming mold, the first forming piece, the second forming piece, the third forming piece and the fourth forming piece are internally provided with cooling channels.
[0016] Compared with the prior art, the water floating cylinder double-station rotational molding forming mold has the advantages that:
[0017] 1、The first forming piece, the second forming piece, the third forming piece and the fourth forming piece are arranged, the rotational molding process is adopted, the processing of the double floating cylinder can be completed at one time, the consistency of the cooling effect of the forming surface is ensured, the preparation and forming of the workpiece with a complex profile are facilitated, the workpiece preparation performance is improved, the mold development cost is saved, and good use efficiency is achieved.
[0018] 2、The cooling liquid is introduced into the cooling channel in the floating cylinder forming mold body, the floating cylinder forming mold body is cooled, the efficiency of the floating cylinder forming is greatly improved, and the working efficiency of the device is improved.
[0019] Other advantages, objects and characteristics of the water floating cylinder double-station rotational molding forming mold will be embodied in part through the following description, and will be understood by those skilled in the art through research and practice of the water floating cylinder double-station rotational molding forming mold. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the whole structure schematic diagram of the utility model.
[0021] Figure 2 It is the explosion structure schematic diagram of the utility model.
[0022] Figure 3 It is another perspective explosion structure schematic diagram of the utility model.
[0023] Figure 4 It is the sectional view of the utility model.
[0024] Figure 5 It is the inside schematic diagram of the upper mould of the utility model.
[0025] Figure 6 It is the inside schematic diagram of the lower mould of the utility model.
[0026] In the figure: 1, lower mould;2, upper mould;3, first forming part;4, second forming part;5, lower edge forming cavity;6, fourth forming part;7, third forming part;8, top surface forming cavity;9, upper edge forming cavity;10, pontoon connecting lug forming cavity;11, through hole;12, first positioning groove;13, first positioning block;14, bottom surface forming cavity;15, second positioning groove;16, second positioning block;17, strip-shaped part;18, cavity;19, first forming block;20, second forming block. DETAILED DESCRIPTION
[0027] The utility model will be further explained below in combination with the drawings.
[0028] As Figures 1-3 shown, a water pontoon double-station rotational moulding forming mould, including upper mould 2 and lower mould 1, the upper mould 2 and lower mould 1 mutually cooperate, the lower mould 1 with the upper mould 2 between the cavity 18 of forming is formed, the upper mould 2 includes first forming part 3 and second forming part 4, the first forming part 3 and second forming part 4 between fixed connection, the surface of first forming part 3 is provided with bottom surface forming cavity 14, the inside of second forming part 4 is provided with lower edge forming cavity 5, the lower mould 1 includes third forming part 7 and fourth forming part 6, the third forming part 7 and fourth forming part 6 between fixed connection, the surface of third forming part 7 is provided with top surface forming cavity 8, the inside of fourth forming part 6 is provided with upper edge forming cavity 9, second forming part 4 with third forming part 7 between being provided with pontoon connecting lug forming cavity 10, second forming part 4 with third forming part 7 one side is provided with through hole 11.
[0029] In use, the upper mold 2 and the lower mold 1 are first fixed and sealed, then the powder or paste material is injected into the cavity 18 of the upper mold 2 and the lower mold 1 from the through hole 11, the rotomolding mold is placed in the rotomolding machine, and the material is uniformly distributed in the mold cavity by its own gravity and centrifugal force through heating and longitudinal and transverse rolling rotation of the mold, and then the upper mold 2 and the lower mold 1 are demolded to obtain the hollow product after cooling.
[0030] In combination with Figure 2 , Figure 3 , the first positioning groove 12 is arranged on the contact surface of the first forming piece 3, the first positioning block 13 is arranged on the second forming piece 4, and the second forming piece 4 is fixed in the first positioning groove 12 through the first positioning block 13.
[0031] Specifically, the inner edge of the lower edge forming cavity 5 is flush with the edge of the bottom surface forming cavity 14.
[0032] In this embodiment, the first positioning groove 12 and the first positioning block 13 can facilitate positioning of the first forming piece 3 and the second forming piece 4, and prevent burrs on the lower edge forming surface of the buoy.
[0033] In combination with Figure 2 , Figure 3 , the second positioning groove 15 is arranged on the contact surface of the fourth forming piece 6, the second positioning block 16 is arranged on the third forming piece 7, and the third forming piece 7 is fixed in the second positioning groove 15 through the second positioning block 16.
[0034] Specifically, the inner edge of the upper edge forming cavity 9 is flush with the edge of the top surface forming cavity 8.
[0035] In this embodiment, the second positioning groove 15 and the second positioning block 16 are used for positioning of the third forming piece 7 and the fourth forming piece 6, while keeping the upper edge forming surface of the buoy flat.
[0036] In combination with Figure 4 , the inner edge of the upper edge forming cavity 9 and the inner edge of the lower edge forming cavity 5 are provided with a strip-shaped part 17, and the inner edge of the upper edge forming cavity 9 and the inner edge of the lower edge forming cavity 5 are flush with each other.
[0037] In this embodiment, the strip-shaped part 17 is used for forming the edge of the buoy, so as to improve the strength of the buoy.
[0038] In combination with Figure 5 , Figure 6As shown in the figure, the float connecting lug forming cavity 10 is provided with six groups, and the float connecting lug forming cavity 10 is located at the outer edge of the cavity 18, the float connecting lug forming cavity 10 is composed of the first forming block 19 and the second forming block 20, and the first forming block 19 and the second forming block 20 are in butt joint with each other.
[0039] In the embodiment, the first forming block 19 and the second forming block 20 are used for manufacturing the connecting lug of the float, and the processing efficiency of the float can be improved.
[0040] In combination Figure 4 , Figure 5 As shown in the figure, the cavity 18 is a double-station water float cavity.
[0041] In the embodiment, the processing of the double float can be completed at one time, and the working efficiency of the device is improved.
[0042] In combination Figure 5 , Figure 6 As shown in the figure, one half of the through hole 11 is located on the second forming part 4, and the other half of the through hole 11 is located on the third forming part 7.
[0043] In the embodiment, the through hole 11 is used for injecting the powdery or paste material into the cavity 18 of the upper mold 2 and the lower mold 1.
[0044] In combination Figure 4 As shown in the figure, the first forming part 3, the second forming part 4, the third forming part 7 and the fourth forming part 6 are internally provided with cooling channels.
[0045] In the embodiment, the cooling channels not only ensure the consistency of the cooling effect of the forming surface, but also greatly improve the efficiency of the float forming.
[0046] The working principle of the utility model is:
[0047] In use, the upper mold 2 and the lower mold 1 are first sealed and fixed, then the powdery or paste material is injected into the cavity 18 of the upper mold 2 and the lower mold 1 through the through hole 11, the rotational molding mold is placed into the rotational molding machine, the material is uniformly distributed in the mold cavity and melted by the self-gravity and centrifugal force through the heating and longitudinal and transverse rolling rotation of the mold, then the mold is placed into the refrigeration circulating device, and the mold continues to rotate until the thickness of each part is consistent. When the mold is completely frozen, it is taken out of the machine, and the upper mold 2 and the lower mold 1 are demolded to obtain the hollow product.
[0048] The utility model discloses a first forming piece 3, second forming piece 4, third forming piece 7 and fourth forming piece 6 are set up, adopt the rotational moulding process, can complete the processing of double buoy one time, guarantee the consistency of the cooling effect of the forming surface, thereby benefitting the preparation forming of the workpiece with complex profile, and can promote workpiece preparation performance, save mould development cost, and have very good use effect simultaneously.
[0049] The cooling liquid is passed into the cooling channel in the buoy forming die body to cool the buoy forming die body, greatly speeds up the efficiency of buoy forming, and improves the working efficiency of the device.
[0050] The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model.
[0051] Although the terms such as 1, upper die; 2, lower die; 3, first forming piece; 4, second forming piece; 5, lower edge forming cavity; 6, fourth forming piece; 7, third forming piece; 8, top surface forming cavity; 9, upper edge forming cavity; 10, buoy connecting lug forming cavity; 11, through hole; 12, first positioning groove; 13, first positioning block; 14, bottom surface forming cavity; 15, second positioning groove; 16, second positioning block; 17, strip part; 18, cavity; 19, first forming block; 20, second forming block are used more in this paper, but the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the utility model, and it is contrary to the spirit of the utility model to interpret them as any kind of additional limitation.
Claims
1. A water float two-station rotational molding mold comprising an upper mold (2) and a lower mold (1), characterized in that, The upper die (2) and the lower die (1) cooperate with each other, the lower die (1) and the upper die (2) form a cavity (18), the lower die (1) comprises a first forming part (3) and a second forming part (4), the first forming part (3) and the second forming part (4) are fixedly connected, the surface of the first forming part (3) is provided with a bottom surface forming cavity (14), the inside of the second forming part (4) is provided with a lower edge forming cavity (5), the upper die (2) comprises a third forming part (7) and a fourth forming part (6), the third forming part (7) and the fourth forming part (6) are fixedly connected, the surface of the third forming part (7) is provided with a top surface forming cavity (8), the inside of the fourth forming part (6) is provided with an upper edge forming cavity (9), the second forming part (4) and the third forming part (7) are provided with a buoy connecting lug forming cavity (10), and the second forming part (4) and the third forming part (7) are provided with through holes (11) on one side.
2. The water float two-station rotational molding mold of claim 1, wherein, The first forming part (3) is provided with a first positioning groove (12) on the contact surface of the second forming part (4), the second forming part (4) is provided with a first positioning block (13), and the second forming part (4) is fixed in the first positioning groove (12) through the first positioning block (13).
3. A watercraft pontoon dual location rotational moulding forming mould according to claim 2 wherein, The inner edge of the lower edge forming cavity (5) is flush with the edge of the bottom surface forming cavity (14).
4. A watercraft pontoon twin location rotational moulding forming mould according to claim 3 wherein, The fourth forming part (6) is provided with a second positioning groove (15) on the contact surface of the third forming part (7), the third forming part (7) is provided with a second positioning block (16), and the third forming part (7) is fixed in the second positioning groove (15) through the second positioning block (16).
5. A watercraft pontoon twin location rotational moulding forming mould according to claim 4 wherein, The inner edge of the upper edge forming cavity (9) is flush with the edge of the top surface forming cavity (8).
6. A watercraft pontoon twin location rotational moulding forming mould according to claim 5 wherein, The inner edge of the upper edge forming cavity (9) is provided with a strip-shaped part (17) and the inner edge of the lower edge forming cavity (5), and the inner edge of the upper edge forming cavity (9) and the inner edge of the lower edge forming cavity (5) are flush with each other.
7. A twin station rotational moulding mould for a pontoon according to claim 6, characterised in that, The buoy connecting lug forming cavity (10) is provided with six groups, and the buoy connecting lug forming cavity (10) is located at the outer edge of the cavity (18), the buoy connecting lug forming cavity (10) is composed of a first forming block (19) and a second forming block (20), and the first forming block (19) and the second forming block (20) are butted against each other.
8. The watercraft pontoon twin location rotational molding mold of claim 7, wherein, The cavity (18) is a double-station water floating cylinder cavity.
9. The watercraft pontoon twin location rotational molding mold of claim 8, wherein, Half of the through hole (11) is located on the second forming part (4), and the other half of the through hole (11) is located on the third forming part (7).
10. The watercraft pontoon twin location rotational molding mold of claim 9, wherein, The first forming part (3), the second forming part (4), the third forming part (7) and the fourth forming part (6) are provided with cooling channels in the interiors.