A preform device for a molded rubber article

Abstract

The utility model relates to a kind of preforming device of moulding rubber product, and preforming device includes upper die, lower die, lower die is installed on lower die support;Upper die is large-stroke upper die, upper die is installed gantry, upper die is located above lower die, and it is opposite to lower die, upper die is connected with cylinder installed on gantry, cylinder drives upper die to move up and down, and opens mould or closes mould;When closing mould, the cavity matched with rubber product is formed between upper die and lower die;The guide rail that the both sides column of gantry constitutes upper die to move up and down, the both sides of lower die are provided with clamping groove, the both sides column of gantry is placed in the clamping groove of the both sides of lower die, and clamping is connected.Through upper die to move up and down, open mould or close mould, effectively avoid to pinch rubber product;When opening mould, enough space is needed to be left for feeding and discharging, and the stroke of upper die is designed relatively large (upper die is large-stroke upper die), the both sides column of gantry is designed to constitute the guide rail that upper die moves up and down, guaranteeing that upper die moves up and down stably.

Description

Technical Field

[0001] This utility model relates to rubber product processing, specifically to a preforming device for molded rubber products. Background Technology

[0002] Traditional molding equipment for rubber products uses a flip-top design for the upper and lower molds, which can easily damage the rubber products when the molds are closed. Utility Model Content

[0003] In view of the above problems, this utility model proposes a preforming device for molded rubber products.

[0004] The technical solution of this utility model: A preforming device for molding rubber products includes an upper mold and a lower mold. The lower mold is mounted on a lower mold support. The upper mold is a large-stroke upper mold, mounted on a gantry frame, and located above and opposite the lower mold. The upper mold is connected to a cylinder mounted on the gantry frame, which drives the upper mold to move up and down, open, or close. When the mold is closed, a cavity matching the rubber product is formed between the upper and lower molds. The two side columns of the gantry frame form guide rails for the up and down movement of the upper mold. The lower mold has slots on both sides, and the two side columns of the gantry frame are placed in the slots on both sides of the lower mold and engaged.

[0005] Further refining the above technical solution, the contact surface between the upper and lower molds when they are closed is a conical surface; guide grooves are provided on both sides of the upper mold, and the two side columns of the gantry frame are placed in the guide grooves on both sides of the lower mold with clearance fit. The upper mold moves smoothly up and down.

[0006] The above technical solution is further refined by adding a base plate to the lower mold support and the gantry frame, resulting in a more stable overall structure.

[0007] The advantages of this utility model are that it has a reasonable design and simple structure. By moving the upper mold up and down, opening or closing the mold, it effectively avoids damaging rubber products. Sufficient space needs to be left for loading and unloading materials when opening the mold. The upper mold stroke is designed to be relatively large (the upper mold is a large stroke upper mold). The two side columns of the gantry frame are designed to form the guide rails for the upper mold to move up and down, ensuring the stability of the upper mold's up and down movement. Slots are set on both sides of the lower mold to lock the two side columns of the gantry frame, effectively improving the stability of the gantry frame. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the preforming device for molded rubber products.

[0009] Figure 2 This is a partial top view of the preforming device for molded rubber products.

[0010] Figure 3This is a schematic diagram (partial cross-section) of a preforming device for molding rubber products.

[0011] Figure 4 yes Figure 3 A magnified view of a portion of the image.

[0012] The diagram shows: upper mold 1, guide groove 1-1, lower mold 2, slot 2-1, lower mold support 3, gantry frame 4, side columns 4-1, cylinder 5, and base plate 6. Detailed Implementation

[0013] like Figure 1-4 As shown, a preforming device for molding rubber products includes an upper mold 1 and a lower mold 2, with the lower mold 2 mounted on a lower mold support 3. The upper mold 1 is a large-stroke upper mold, mounted on a gantry frame 4, located above and opposite the lower mold 2. The upper mold 1 is connected to a cylinder 5 mounted on the gantry frame 4, which drives the upper mold 1 to move up and down, open or close. When the mold is closed, a cavity matching the rubber product is formed between the upper mold 1 and the lower mold 2. The two side columns 4-1 of the gantry frame form guide rails for the upper mold 1 to move up and down. The lower mold 2 has slots 2-1 on both sides, and the two side columns 4-1 of the gantry frame are placed in the slots 2-1 on both sides of the lower mold and engaged. When the upper mold 1 and the lower mold 2 are closed, the contact surface is a conical surface. The upper mold 1 has guide grooves 1-1 on both sides, and the two side columns 4-1 of the gantry frame are placed in the guide grooves 1-1 on both sides of the lower mold with clearance fit. The lower mold support 3 and the gantry frame 4 share a base plate 6.

[0014] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A preforming apparatus for molded rubber products, the preforming apparatus comprising an upper mold and a lower mold, the lower mold being mounted on a lower mold support; characterized in that the upper mold is a large-stroke upper mold, the upper mold is mounted on a gantry frame, the upper mold is located above and opposite the lower mold, the upper mold is connected to a cylinder mounted on the gantry frame, the cylinder driving the upper mold to move up and down, open or close; when the mold is closed, a cavity matching the rubber product is formed between the upper mold and the lower mold; The two side columns of the gantry frame form the guide rails for the upper mold to move up and down. The two sides of the lower mold are provided with slots, and the two side columns of the gantry frame are placed in the slots on both sides of the lower mold and engaged.

2. The molding rubber product preforming device according to claim 1, characterized in that, When the upper mold and the lower mold are closed, the contact surface is a conical surface; the upper mold is provided with guide grooves on both sides, and the two side columns of the gantry frame are placed in the guide grooves on both sides of the lower mold with clearance fit.

3. The molding rubber product preforming device according to claim 1, characterized in that, The lower mold support and the gantry frame share the same base plate.

Images