Rotational molding plastic boat mold

Abstract

The utility model provides a rotational molding plastic boat mould, which comprises a main mould and an auxiliary mould matched with the main mould, a main ring peripheral edge is arranged on the outer side of the main mould, an annular bulge is arranged on the main ring peripheral edge, an auxiliary ring peripheral edge is arranged on the lower outer side of the auxiliary mould, and an annular bulge is arranged on the auxiliary ring peripheral edge. An annular groove matched with the annular protrusion is formed in the lower surface of the peripheral edge of the auxiliary ring. The mold has the beneficial effects that the main mold and the auxiliary mold are matched through the annular bulge and the annular groove, so that the sealing performance of the mold is enhanced, and the yield is improved; and the air holes are formed in the auxiliary mold, so that an air draft inlet is provided for forming placement, and the cooling speed is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of boat moulds, in particular to a rotationally moulded plastic boat mould. Background Art

[0002] At present, plastic boat bodies are widely used in the market because of their advantages such as corrosion resistance, maintenance-free and pollution-free. In actual production, plastic boat molds have the following shortcomings: due to the loose sealing at the fixed edge between the main mold and the auxiliary mold, some raw materials overflow when the rotational molding machine is heated and rotated, resulting in a waste of raw materials; after the molding is cooled, it is usually placed for a certain period of time before demolding, which is inefficient. Utility Model Content

[0003] The utility model aims to provide a rotationally molded plastic boat mold, which improves the sealing performance between the main and auxiliary molds, increases the cooling speed, facilitates demoulding, and is particularly suitable for use in manufacturing kayaks.

[0004] The technical scheme of the utility model is: a rotationally molded plastic boat mold, comprising a main mold and an auxiliary mold matched with the main mold, wherein the upper outer side of the main mold is provided with a main circumferential edge, the main circumferential edge is provided with an annular protrusion, the lower outer side of the auxiliary mold is provided with an auxiliary circumferential edge, the lower surface of the auxiliary circumferential edge is provided with an annular groove matched with the annular protrusion, when the main mold and the auxiliary mold are installed, the annular protrusion is arranged in the annular groove, and a high temperature resistant sealing gasket is arranged between the annular protrusion and the annular groove, a plurality of threaded blind holes are arranged on the main circumferential edge, and a mounting hole matched with the threaded blind holes is arranged on the auxiliary circumferential edge, the main circumferential edge and the auxiliary circumferential edge are fixed by screws,

[0005] A connecting frame is provided on the upper outer side of the auxiliary mold, and a plurality of fixing holes are provided on the connecting frame. A plurality of screws matching the fixing holes are provided on the upper outer end of the auxiliary mold, and each screw passes through the matching fixing hole and is fixed by two nuts. A plurality of hooks are provided on the connecting frame, and an air vent is provided on the auxiliary mold, and an internal thread is provided in the air vent, and a connecting tube matching with the air vent is provided in the air vent, and a sealing cover is provided at the outer end of the connecting tube.

[0006] Preferably, the two nuts on the screw rod are respectively arranged on the upper and lower surfaces of the connecting frame.

[0007] Preferably, the end of the connecting tube extending into the air hole is open, and the other end of the connecting tube is provided with anti-slip grooves on the outside.

[0008] Preferably, the inner surfaces of the main mold and the auxiliary mold are provided with glass fiber layers and carbon fiber layers in sequence from the outside to the inside.

[0009] Preferably, an outer wall of the connecting tube is provided with an external thread, and the connecting tube thread is arranged in the vent hole.

[0010] The advantages and positive effects of the utility model are as follows: due to the adoption of the above technical scheme, the sealing of the mold is enhanced and the yield rate is improved by the matching arrangement of the annular protrusion and the annular groove between the main mold and the auxiliary mold; the air vents provided on the auxiliary mold provide an exhaust inlet for the molding placement, thereby improving the cooling speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0013] In the figure:

[0014] 1. Main mold 2. Auxiliary mold 3. Main circumferential edge

[0015] 4. Annular protrusion 5. Auxiliary circumferential edge 6. Annular groove

[0016] 7. High temperature resistant sealing pad 8. Screws 9. Connecting frame

[0017] 10. Screw 11. Hook 12. Connecting tube

[0018] 13. Glass fiber layer 14. Carbon fiber layer DETAILED DESCRIPTION

[0019] like Figure 1-2 As shown, the technical solution of the utility model is a rotationally molded plastic boat mold, including a main mold 1 and an auxiliary mold 2 matched with the main mold 1, the main mold 1 is provided with a main peripheral edge 3 on the upper outer side, the main peripheral edge 3 is provided with an annular protrusion 4, and the auxiliary mold 2 is provided with an auxiliary peripheral edge 5 on the lower outer side, and the lower surface of the auxiliary peripheral edge 5 is provided with an annular groove 6 matched with the annular protrusion 4. When the main mold 1 and the auxiliary mold 2 are installed, the annular protrusion 4 is arranged in the annular groove 6, and a high temperature resistant sealing gasket 7 is arranged between the annular protrusion 4 and the annular groove 6, a plurality of threaded blind holes are arranged on the main peripheral edge 3, and a mounting hole matched with the threaded blind holes is arranged on the auxiliary peripheral edge 5, and the main peripheral edge 3 and the auxiliary peripheral edge 5 are fixed by screws 8.

[0020] A connecting frame 9 is provided on the outer upper side of the auxiliary mold 2, and a plurality of fixing holes are provided on the connecting frame 9. A plurality of screws 10 matching the fixing holes are provided on the outer upper end of the auxiliary mold 2. Each screw 10 passes through the matching fixing hole and is fixed by two nuts. A plurality of hooks 11 are provided on the connecting frame 9. The connecting frame 9 and the hooks 11 facilitate the movement of the auxiliary mold 2. An air hole is provided on the auxiliary mold 2, and an internal thread is provided in the air hole. A connecting tube 12 matching with the air hole is provided in the air hole, and a sealing cover is provided at the outer end of the connecting tube 12.

[0021] In this embodiment, the two nuts on the screw rod 10 are respectively arranged on the upper and lower surfaces of the connecting frame 9 .

[0022] In this embodiment, the end of the connecting tube 12 extending into the air hole is open, and the other end of the connecting tube 12 is provided with anti-slip grooves on the outer side.

[0023] In this embodiment, the inner surfaces of the main mold 1 and the auxiliary mold 2 are provided with a glass fiber layer 13 and a carbon fiber layer 14 from the outside to the inside. The glass fiber layer plays a role of heat preservation, and the carbon fiber layer is a heating layer, wherein when heated, the outer shell of the boat is located on the carbon fiber layer. The carbon fiber layer is corrosion-resistant, anti-oxidation, and has high stability, so that the mold has a longer life and a high heat conversion rate.

[0024] In this embodiment, an outer wall of the connecting tube is provided with an external thread, and the thread of the connecting tube is also inside the vent hole.

[0025] The working process and principle of this example are as follows: when in use, the sling adjusts the hook 11 to move the auxiliary mold 2 to the top of the main mold 1. At this time, the annular protrusion and the annular groove are matched, and a high-temperature resistant sealing gasket 7 is installed between the annular protrusion and the annular groove; after molding, open the cover at the outer end of the connecting tube, connect the exhaust fan pipe to the end of the connecting tube 12, and cool the inside of the mold.

[0026] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A rotationally molded plastic boat mold, characterized in that: The invention comprises a main mold and an auxiliary mold matched with the main mold, wherein the upper outer side of the main mold is provided with a main circumferential edge, the main circumferential edge is provided with an annular protrusion, the lower outer side of the auxiliary mold is provided with an auxiliary circumferential edge, the lower surface of the auxiliary circumferential edge is provided with an annular groove matched with the annular protrusion, when the main mold and the auxiliary mold are installed, the annular protrusion is arranged in the annular groove, and a high temperature resistant sealing gasket is arranged between the annular protrusion and the annular groove, a plurality of threaded blind holes are arranged on the main circumferential edge, and a mounting hole matched with the threaded blind holes is arranged on the auxiliary circumferential edge, and the main circumferential edge and the auxiliary circumferential edge are fixed by screws, A connecting frame is provided on the upper outer side of the auxiliary mold, and a plurality of fixing holes are provided on the connecting frame. A plurality of screws matching the fixing holes are provided on the upper outer end of the auxiliary mold, and each screw passes through the matching fixing hole and is fixed by two nuts. A plurality of hooks are provided on the connecting frame, and an air vent is provided on the auxiliary mold, and an internal thread is provided in the air vent, and a connecting tube matching with the air vent is provided in the air vent, and a sealing cover is provided at the outer end of the connecting tube.

2. A rotationally molded plastic boat mold according to claim 1, characterized in that: The two nuts on the screw rod are respectively arranged on the upper and lower surfaces of the connecting frame.

3. A rotationally molded plastic boat mold according to claim 1, characterized in that: The end of the connecting tube extending into the air-permeable hole is open, and the outer side of the other end of the connecting tube is provided with anti-slip grooves.

4. The rotational molding plastic boat mold according to claim 1, characterized in that: The inner surfaces of the main mold and the auxiliary mold are sequentially provided with glass fiber layers and carbon fiber layers from the outside to the inside.

5. The rotationally molded plastic boat mold according to claim 1, characterized in that: The outer wall of the connecting tube is provided with an external thread, and the connecting tube thread is arranged in the air vent.

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