TWI488729B - A hot press die for manufacturing a fiber reinforced housing with an angle of inclination and a method for manufacturing the same - Google Patents

Description

Hot pressing die for manufacturing fiber reinforced outer casing with inclined angle and manufacturing method thereof

The present invention relates to a mold for a product and a method of manufacturing the same, and more particularly to a hot press mold for manufacturing a fiber reinforced outer shell having an inclined angle and a method of manufacturing the same.

Referring to Fig. 1, a conventional hot press mold 1 for manufacturing a carbon fiber outer casing 100 includes a mating lower mold 11 and an upper mold 12, and a parting surface 13 interposed between the lower mold 11 and the upper mold 12. The lower mold 11 has a cavity 111 below the parting surface 13, and the upper mold 12 has a pair of mold cores 121 which are cavities 111.

In practical application, a plurality of carbon fiber prepreg 14 is laminated in the cavity 111, and the carbon fiber prepreg 14 is hot pressed with the mold core 121 to form the carbon fiber outer casing 100. The carbon fiber outer casing 100 includes the carbon fiber outer casing 100. A substantially planar body 101 and a surrounding wall 102 surrounding the periphery of the body 101.

Referring to FIG. 2, the existing carbon fiber outer casing 100, in addition to the body 101 and the surrounding wall 102, is formed with an inclination 103 on the side of the surrounding wall 102 opposite to the body 101. In addition to the aesthetic effect, it is also convenient for the user to take.

When the carbon fiber outer casing 100 having the inclination angle 103 is formed by the hot press die 1, the inclination 103 formed on the surrounding wall 102 forms an undercut 112 on the cavity 111 of the lower mold 11, which affects not only the carbon fiber outer casing 100. The demolding operation, and the bezel 112 also hinders the transfer of the hot pressing pressure, resulting in a structure that is relatively loose and fragile at the dip angle 103 and susceptible to damage.

In order to avoid the above disadvantages, the existing inclination angle 103 formed on the surrounding wall 102 is mostly processed by a computer numerical control (CNC) to form a dip angle 103 on the surrounding wall 102. Although the above disadvantages can be avoided, the additional processing is undoubtedly an increase in additional production cost and processing time, and the material to be cut is also a waste of raw materials.

Accordingly, it is an object of the present invention to provide a hot press mold for producing a fiber reinforced outer casing having an inclined angle which can reduce cost and processing time and avoid waste of raw materials.

Accordingly, the present invention provides a hot press mold having an angled fiber reinforced outer casing, the angled fiber reinforced outer casing comprising a shell body, an extension wall integrally connected to a side edge of the shell body, and a formation formed on the extension wall opposite to An inclination angle on one side of the shell body, the hot press mold comprising a matching lower mold and an upper mold.

The lower mold includes a lower mold body, and a pair of mold cavities formed on the lower mold body; the upper mold includes an upper mold body, and a pair of mold cores disposed on the upper mold body And a molding space formed on the upper mold body and communicating with the mold cavity, wherein the molding space has a pair of connecting portions that should extend the wall and communicate with the cavity, and a connection to the connection On the upper part, the inclined part that should be tapered.

Another object of the present invention is to provide a method of manufacturing a fiber-reinforced outer casing which can reduce the cost and processing time and avoid waste of raw materials.

Thus, the method of manufacturing a fiber reinforced outer casing having an angled angle of the present invention comprises a preparation step, a pretreatment step, and a hot press forming step.

The preparation step is to prepare a hot pressing die, the hot pressing die includes a matching upper die and a lower die, wherein the lower die has a lower die body, and a cavity formed on the lower die body, the upper die The mold comprises an upper mold body, a pair of mold cores disposed on the upper mold body, and a molding space formed on the upper mold body and communicating with the mold cavity, the molding space having a cavity communicating with the mold cavity a connecting portion and a dip portion that is tapered to be connected to the connecting portion.

The pretreatment step is to laminate a plurality of uncured fiber-reinforced substrates in the cavity, and fill an uncured fiber-reinforced material to fill the joint portion and the inclined portion of the molding space.

The hot press forming step heat-presses the uncured fiber-reinforced substrate laminated in the cavity by the upper die and the lower die, and fills the connecting portion and the narrowing portion of the molding space. The uncured fiber-reinforced material is used to cure the uncured fiber-reinforced substrate and the uncured fiber-reinforced material into an angled fiber-reinforced outer shell.

The angled fiber reinforced outer casing has a pair of shell bodies to be cavities, a pair of extension walls connected to the shell body of a joint portion to be formed, and a pair of inclined portions of the space to be formed by the extension The wall is inclined toward the opposite direction of the shell body.

The invention has the beneficial effects that the molding space is formed on the upper mold body to avoid the occurrence of the gusset, and the uncured fiber reinforced substrate and the fiber reinforced raw material are respectively laminated on the mold in accordance with the pretreatment step. The hole and the filling of the molding space can complete the fiber-reinforced outer shell with dip angle without additional processing, which effectively reduces processing cost and time, and avoids waste of raw materials.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to Figure 3, a preferred embodiment of the hot stamping die 2 of the present invention for producing a fiber reinforced outer casing having an angled angle includes a mating lower die 21 and an upper die 22, and a portion between the upper die 22 and the lower die 21 Parting surface 23.

The lower mold 21 includes a lower mold body 211 and a cavity 212 formed on the lower mold body 211. The upper mold 22 includes an upper mold body 221 and a pair of mold cavity 212 disposed on the upper mold body 221 a mold core 222, and a molding space 223 formed on the upper mold body 221 and communicating with the cavity 212, wherein the cavity 212 and the molding space 223 are located on opposite sides of the parting surface 23, and The molding space 223 has a connecting portion 224 that communicates with the cavity 212, and a dip portion 225 that is connected to the connecting portion 224 and has a tapered cross section.

In this embodiment, the molding space 223 surrounds the mold core 222. In practical applications, the molding space 223 may be separately located on one side of the mold core 222, or a plurality of intervals may be located at the periphery of the mold core 222. It is not limited to this embodiment.

Referring to Figures 4 and 5, the method of manufacturing a fiber reinforced outer casing having an angled angle of the present invention comprises a preparation step 31, a pretreatment step 32, and a hot press forming step 33.

The preparation step 31 is to prepare the hot press die 2 for manufacturing the fiber-reinforced outer casing having the inclined angle. Therefore, the device structure described in the embodiment is preferably the above-described hot press die 2 for manufacturing the fiber-reinforced outer casing having the inclined angle. The embodiment is not described here.

In the pretreatment step 32, a plurality of uncured fiber-reinforced substrates 200 are laminated in the cavity 212, and an uncured fiber-reinforced material 201 is filled in the joint portion 224 and the inclined portion 225 of the molding space 223.

In the present embodiment, the uncured fiber-reinforced substrate 200 is a carbon fiber prepreg layer impregnated with an epoxy resin, and the uncured fiber-reinforced material 201 is a gel-like carbon fiber impregnated with epoxy resin.

The hot press forming step 33 is an uncured fiber reinforced substrate 200 laminated in the cavity 212 by the upper mold 22 and the lower mold 21, and the joint portion filled in the molding space 223. The uncured fiber-reinforced material 201 in the 224 and the inclined portion 225 cures the uncured fiber-reinforced substrate 200 and the uncured fiber-reinforced material 201 into a fiber-reinforced outer casing 203.

The fiber reinforced outer casing 203 has a pair of shell bodies 204 that are cavities 212, a pair of connecting portions 224 that should be formed into a space 223, and an extension wall 205 that is connected to the shell body 204, and a pair of angles of the space 223 to be formed. The portion 225 is inclined by the extension wall 205 toward the opposite direction of the housing body 204.

In this embodiment, the extension wall 205 is adjacent to the periphery of the shell body 204 corresponding to the molding space 223. In practice, the extension wall 205 may also be a corresponding one of the shell body 204 corresponding to the molding space 223. The side, or the majority of the spacing, is located at the periphery of the housing body 204 and is not limited to this embodiment.

The forming space 223 is formed on the upper mold body 221, and the cavity 212 and the molding space 223 are respectively located on opposite sides of the parting surface 23, which not only can avoid the occurrence of the angle of insertion but also help to take off The mold can also contribute to the transfer of the hot pressing pressure, so that the overall structural strength of the fiber reinforced outer casing 203 is more uniform, and the uncured fiber reinforced substrate 200 and the fiber reinforced raw material 201 are respectively combined with the pretreatment step 32. By laminating in the cavity 212 and filling the molding space 223, the fiber reinforced casing 203 can be completed in one hot pressing process, which effectively reduces processing cost and time, and avoids waste of raw materials caused by cutting.

In summary, the present invention provides a hot press mold 2 having a fiber-reinforced outer casing having an inclined angle and a method of manufacturing the same, and the molding space 223 is formed on the upper mold body 221 to avoid generation of an angle, which is matched with the pretreatment step 32. The uncured fiber-reinforced substrate 200 and the fiber-reinforced material 201 are respectively laminated on the cavity 212 and filled in the molding space 223, and the fiber-reinforced outer casing 203 having an inclination angle can be completed without additional processing, thereby effectively reducing processing. The cost and time, and avoiding the waste of raw materials caused by the cutting process, can indeed achieve the object of the present invention.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2. . . Hot pressing mold

twenty one. . . Lower die

211. . . Lower die body

212. . . Cavity

twenty two. . . Upper mold

221. . . Upper mold body

222. . . Mold

223. . . Molding space

224. . . Connection

225. . . Inclined section

twenty three. . . Parting surface

31. . . Preparation step

32. . . Pretreatment step

33. . . Hot press forming step

200. . . Fiber reinforced substrate

201. . . Fiber reinforced raw material

203. . . Fiber reinforced shell

204. . . Shell body

205. . . Extension wall

206. . . inclination

Figure 1 is a schematic view showing a conventional hot press mold for manufacturing a carbon fiber outer casing;

Figure 2 is a schematic view showing a state in which a carbon fiber outer casing having an inclined angle is formed by using a conventional hot press mold;

Figure 3 is a schematic view showing a preferred embodiment of the hot press mold for manufacturing a fiber reinforced outer casing having an inclined angle;

Figure 4 is a flow chart showing a preferred embodiment of the method of manufacturing a fiber reinforced outer casing having an angled angle of the present invention;

Fig. 5 is a schematic view, which is an explanatory view of Fig. 4.

2. . . Hot pressing mold

twenty one. . . Lower die

211. . . Lower die body

212. . . Cavity

twenty two. . . Upper mold

221. . . Upper mold body

222. . . Mold

223. . . Molding space

224. . . Connection

225. . . Inclined section

twenty three. . . Parting surface

Claims (4)

A hot press mold for manufacturing an angled fiber reinforced outer casing, the angled fiber reinforced outer casing comprising a shell body, an extension wall integrally connected to a side edge of the shell body, and a forming body formed on the extending wall opposite to the shell body The hot stamping die includes: a lower mold, a lower mold body, and a pair of mold cavities formed on the lower mold body; and an upper mold including an upper mold body, a pair of mold cores disposed on the upper mold body and having a cavity, and a molding space formed on the upper mold body and communicating with the mold cavity, wherein the molding space has a communication cavity And a connecting portion connected to the connecting portion and inclined at an inclination angle. A hot press mold for manufacturing a fiber-reinforced outer casing having an inclined angle according to the first aspect of the invention, wherein the hot press mold further includes a parting surface between the upper mold and the lower mold, the mold cavity and the mold The molding space is located on the opposite side of the parting surface. A manufacturing method for manufacturing a fiber-reinforced outer casing having an inclined angle, comprising: a preparation step of preparing a hot pressing mold, the hot pressing mold comprising a matching upper mold and a lower mold, wherein the lower mold has a lower mold body, and a mold cavity formed on the lower mold body, the upper mold includes an upper mold body, a pair of mold cores disposed on the upper mold body, and a mold body formed on the upper mold body and communicating with the mold cavity a molding space having a connecting portion communicating with the cavity, and a tapered portion connected to the connecting portion; a pre-processing step of laminating a plurality of uncured fiber-reinforced substrates to the mold a hole, and an uncured fiber reinforced material fills the joint portion and the inclined portion of the molding space; and a hot press forming step, wherein the upper mold and the lower mold are hot pressed to be laminated in the mold cavity An uncured fiber-reinforced substrate, and the uncured fiber-reinforced raw material filled in the joint portion and the inclined portion of the molding space, curing the uncured fiber-reinforced substrate and the uncured fiber-reinforced raw material Become a dip a fiber reinforced outer casing having a pair of shell body to be cavities, a pair of extension walls connected to the shell body at a joint portion to be formed, and a pair of inclined portions of the space to be formed And the angle of inclination of the extension wall extending toward the opposite direction to the body of the casing. The method for producing a fiber-reinforced outer casing having an inclined angle according to the third aspect of the invention, wherein the uncured fiber-reinforced substrate is a carbon fiber prepreg layer impregnated with an epoxy resin, and the uncured fiber The reinforcing material is a gel-like carbon fiber impregnated with epoxy resin.