Carbon fiber seat back molding die

Abstract

A molding die for a carbon fiber seat back comprises an upper die and a lower die, which are pressed together to form a carbon fiber seat back, wherein the lower die comprises a first main body portion for molding a seat back main body, wherein the main body portion is in a wave shape with ups and downs in the horizontal direction, a first groove is arranged along the outer edge of the outer edge of the main body portion, a first wave surface having the same wave shape as the main body portion is arranged along the length direction of the lower die, and a first retaining edge is arranged on the outer side of the first wave surface.

Description

Technical Field

[0001] The invention relates to a forming die for a carbon fiber seat back. Background Art

[0002] Carbon fiber reinforced resin-based composite materials have been widely used in aerospace, wind turbine blades, sports equipment, and automotive parts due to their high strength, high modulus, flexible molding process, and obvious lightweight effect. When processing carbon fiber materials into products, existing processing molds are usually unable to form an annular cavity structure and cannot meet the needs of product customers. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a molding die for molding a carbon fiber seat back.

[0004] The technical solution adopted by the present invention to solve the above problem is: a molding die for a carbon fiber seat back, comprising an upper die and a lower die, the upper die and the lower die are pressed together to form a carbon fiber seat back, the lower die comprises a first main body portion for molding a main body of the seat back, the main body portion is in a wave shape with ups and downs in the horizontal direction, a first ditch is provided along the outer edge of the outer edge of the main body portion, a first wave surface with the same wave shape as the main body portion is provided along the length direction of the lower die, and a first retaining edge is provided on the outer side of the first wave surface;

[0005] The upper mold is provided with a second main body portion corresponding to the first main body portion, a second groove is provided on the outer edge of the outer edge of the second main body portion, a second wave surface with the same wave shape as the main body portion is provided along the length direction of the upper mold, and a second rib is provided on the outer side of the second wave surface; when the upper mold or the lower mold or the lower mold or the upper mold and the lower mold are pressed together, a channel connecting the first groove and / or the second groove is provided; when the upper mold and the lower mold are pressed together, the first groove corresponds to the second groove in the vertical direction, the first wave surface corresponds to the second wave surface in the vertical direction, the first main body portion corresponds to the second main body portion in the vertical direction, and the first rib and the second rib are in contact.

[0006] Among them, the lower mold includes a base part, a left side part, a right side part and an upper end part, the left side part, the right side part and the upper end part are respectively installed on the base part, the first wave surface and the first rib are arranged on the left side part, the first wave surface and the first rib are arranged on the right side part, and the two ends of the upper end part are respectively connected to the first wave surface located on the left side part and the first wave surface located on the right side part.

[0007] Wherein, the first channel runs through the outer edge of the first main body.

[0008] Wherein, the second trench is segmentedly arranged on the upper mold.

[0009] Wherein, the contact surface between the first rib and the second rib is an inclined surface.

[0010] Compared with the prior art, the present invention has the following advantages and effects: when in use, the present invention can form a hollow annular structure after an inflatable filling bag is arranged in the ditch, thereby enhancing the yield strength of the product and saving materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of the present invention in a decomposed state.

[0012] Figure 2 It is a structural schematic diagram of the combined state of the present invention.

[0013] Figure 3 It is a structural schematic diagram of the upper mold of the present invention. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and by way of examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0015] Example 1

[0016] like Figure 1-3As shown, the molding die of the carbon fiber seat back comprises an upper die 2 and a lower die 1, the upper die 2 and the lower die 1 are pressed together to form the carbon fiber seat back, the lower die 1 comprises a first main body portion 11 for molding the seat back main body, the main body portion is in a wave shape with ups and downs in the horizontal direction, a first groove 12 is arranged along the outer edge of the outer edge of the main body portion, a first wave surface 13 with the same wave shape as the main body portion is arranged along the length direction of the lower die 1, and a first retaining edge 14 is arranged on the outer side of the first wave surface 13; the upper die 2 is provided with a second main body portion 21 corresponding to the first main body portion 11, and outside the outer edge of the second main body portion 21 A second groove 22 is provided on the edge, and a second wave surface 23 with the same wave shape as the main body is provided along the length direction of the upper mold 2, and a second rib 24 is provided on the outer side of the second wave surface 23; when the upper mold 2 or the lower mold 1 or the lower mold 1 or the upper mold 2 and the lower mold 1 are pressed together, a channel connecting the first groove 12 and / or the second groove 22 is provided; when the upper mold 2 and the lower mold 1 are pressed together, the first groove 12 corresponds to the second groove 22 in the vertical direction, the first wave surface 13 corresponds to the second wave surface 23 in the vertical direction, the first main body 11 corresponds to the second main body 21 in the vertical direction, and the first rib 14 and the second rib 24 are in contact. When in use, the planar carbon fiber material is laid flat on the lower mold 1, and the outer edge of the carbon fiber material is wrapped with an inflatable film bag and set in the first groove 12. After the upper mold 2 and the lower mold 1 are pressed together, the inflatable film bag is accommodated in the first groove 12 and the second groove 22. The air pump inflates the inflatable film bag through the channel to form support for the carbon fiber material between the first groove 12 and the second groove 22. The outside of the carbon fiber material is restricted by the first groove 12 and the second groove 22, thereby forming a hollow folded edge on the outer edge of the carbon fiber seat back. The upper mold 2 and the lower mold 1 are respectively provided with a wavy surface, which forms a wavy curve that conforms to the back curve of the human body after pressing. After the manufacturing is completed, the air in the inflatable film bag is discharged, so that demolding can be achieved.

[0017] In this embodiment, the lower mold 1 includes a base portion 1a, a left side portion 1b, a right side portion 1c and an upper end portion 1d, wherein the left side portion 1b, the right side portion 1c and the upper end portion 1d are respectively mounted on the base portion 1a, the first wave surface 13 and the first retaining edge 14 are arranged on the left side portion 1b, the first wave surface 13 and the first retaining edge 14 are arranged on the right side portion 1c, and the two ends of the upper end portion 1d are respectively connected to the first wave surface 13 located on the left side portion 1b and the first wave surface 13 located on the right side portion 1c. Further, the left side portion 1b, the right side portion 1c and the upper end portion 1d on the lower mold 1 can be separated from the base portion 1a or assembled together, and can be distributed during manufacturing to improve manufacturing efficiency.

[0018] In this embodiment, the first trench 12 passes through the outer edge of the first main body.

[0019] In this embodiment, the second trenches 22 are arranged in sections on the upper mold 2 .

[0020] In this embodiment, the contact surface of the first rib 14 and the second rib 24 is an inclined surface. Specifically, the first rib 14 and the second rib 24 are both provided with an inclined surface, which has a guiding effect when in contact, so as to facilitate the matching and pressing of the upper mold 2 and the lower mold 1.

[0021] The above contents described in this specification are merely examples 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, as long as they do not deviate from the contents of the present specification or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A molding die for a carbon fiber seat back, comprising an upper die and a lower die, wherein the upper die and the lower die are pressed together to form a carbon fiber seat back, wherein: The lower mold comprises a first main body portion for forming a seat back body, the main body portion is in a wave shape with ups and downs in the horizontal direction, a first groove is provided along the outer edge of the outer edge of the main body portion, a first wave surface with the same wave shape as the main body portion is provided along the length of the lower mold, and a first retaining edge is provided on the outer side of the first wave surface; The upper mold is provided with a second main body corresponding to the first main body, a second groove is provided on the outer edge of the outer edge of the second main body, a second wave surface with the same wave shape as the main body is provided along the length of the upper mold, and a second retaining edge is provided on the outer side of the second wave surface; The upper die or the lower die or the lower die or the upper die and the lower die have a channel connected to the first ditch or / and the second ditch when pressed together; When the upper mold and the lower mold are pressed together, the first groove corresponds to the second groove in the vertical direction, the first wave surface corresponds to the second wave surface in the vertical direction, the first main body portion corresponds to the second main body portion in the vertical direction, and the first rib contacts the second rib; The first channel runs through the outer edge of the first main body; The second trench section is arranged on the upper mold.

2. The molding die for the carbon fiber seat back according to claim 1, characterized in that: The lower mold includes a base, a left side, a right side and an upper end, the left side, the right side and the upper end are respectively installed on the base, the first wave surface and the first rib are arranged on the left side, the first wave surface and the first rib are arranged on the right side, and two ends of the upper end are respectively connected to the first wave surface located on the left side and the first wave surface located on the right side.

3. The molding die for the carbon fiber seat back according to claim 1, characterized in that: The contact surface between the first rib and the second rib is an inclined surface.

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