TW201423787A - Magnetic reinforce plate and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a magnetic reinforce plate and a manufacturing method thereof, and the manufacturing method comprises cutting a prepreg containing synthetic resin into a shape of sheet; forming a stacked prepreg sheet by stacking, heating and pressing a plurality of the cut prepreg sheets; forming one or more magnetic plate insert hole to penetrate the stacked prepreg sheet by cutting the stacked prepreg sheet; inserting a magnetic plate into each magnetic plate insert hole; forming a magnetic reinforce plate sheet by stacking, heating and pressing additional prepreg sheets on an upper and a lower surfaces of the stacked prepreg sheet where the magnetic plate has been inserted; and forming one or more magnetic reinforce plate by cutting the magnetic reinforce plate sheet. Accordingly, a magnetic reinforce plate can be provided where separation of the magnet is prevented, manufacturing is easily performed and the integration between surfaces to be attached together is easily made.

Description

Magnetic reinforcing plate and manufacturing method thereof

The invention relates to a magnetic reinforced plate and a manufacturing method thereof. The magnetic reinforced plate can be embedded in a cover of a mobile phone, an outer cover of a photo album, etc., and when the outer cover is folded and formed, the magnetic reinforced plate can magnetically exchange the outer covers Attached.

Please refer to a conventional magnetic reinforcing plate shown in FIG. 1 , which is embedded in a cover 2 of a tablet computer 1 for use as a reinforcing component. Further, when the outer cover 2 is folded and formed, the magnetic reinforcing plate can also be The outer cover surfaces 2a and 2b are magnetically attached to each other.

Referring to FIG. 2a and 2b, a magnetic reinforced plate 10 is formed by cutting a reinforcing plate main body 11 in which a magnet is embedded in a concave portion 11a of the upper surface thereof. The reinforcing plate main body 11 is made of a plastic material in the concave portion. A thin magnet 12 is embedded in the 11a.

In this configuration, when the magnet 12 is to be embedded, an adhesive (for example, a hot melt adhesive) is first adhered to the inner surface of the recess 11a, and then the magnet 12 is embedded and positioned in the recess 11a.

However, in the magnetic reinforced plate 10 produced in the above manner, the adhesive (for example, hot melt adhesive) is extremely likely to fail, and the magnet 12 is easily separated from the concave portion 11a. Further, it is quite difficult to cut the thin concave portion 11a from the reinforcing plate main body 11.

Further, if the outer cover 2 is made of leather or the like, since it is difficult to reliably adhere the magnet 12 and the outer cover 2 exposed to the outer cover 2 shown in Figs. 2a and 2b, it is not easy to cover the outer cover. 2 integrated with the magnetic reinforcing plate 10.

Therefore, according to the structure of the above-described magnetic reinforcing plate 10 and the method of manufacturing the same, not only the overall workability (including material cutting, magnetic component attachment, etc.) but also the defect rate can be improved.

Accordingly, the present invention provides a magnetic reinforced plate and a method of manufacturing the same, which is not only easy It is also suitable for cutting and molding, and it is also easy to integrate the surface.

In order to achieve the above object, the present invention provides a method of manufacturing a magnetic reinforced plate, comprising: cutting a prepreg containing a synthetic resin into a sheet; stacking and hot pressing a plurality of the prepreg sheets to form a stack a prepreg sheet; the stacked prepreg sheet is cut, and the stacked prepreg sheet forms at least one magnetic board insertion hole penetrating the stacked prepreg sheet; at least one magnetic board is embedded Provided in the magnetic plate insertion hole; stacking and hot pressing the additional prepreg sheet on the top and bottom of the stacked prepreg sheet on which the magnetic plate is disposed to form a magnetic reinforced plate sheet And cutting the magnetic reinforced sheet to form at least one magnetic reinforced sheet.

In one aspect of the invention, the prepreg sheet is comprised of a mixture of glass fibers and an epoxy resin and an adhesive attached to the glass fibers.

In one aspect of the invention, the step of forming the stacked prepreg sheet comprises: first attaching the release film to the top and bottom of the plurality of stacked prepreg sheets, and then stacking and hot pressing the sheet Multiple sheets of prepreg sheets stacked.

In one aspect of the invention, the method further includes: between the step of forming the stacked prepreg sheet and the step of forming the magnetic board insertion hole, after cutting the stacked prepreg sheet, Release film removal.

In one aspect of the invention, the method further includes: forming the at least one magnetic plate insertion hole, and inserting the at least one magnetic plate into the magnetic plate insertion hole, cleaning and drying the formed At least one magnetic plate is embedded in the stacked prepreg sheet of the hole.

In one aspect of the invention, the top and bottom of the stacked prepreg sheet are attached with a release film, and the top and bottom of the stacked prepreg sheet to which the release film is attached are stacked The additional prepreg sheet is placed and hot pressed to form a magnetically reinforced sheet.

In one aspect of the invention, after the release film is removed, the magnetically reinforced sheet is cut to form the at least one magnetic reinforced sheet.

In order to achieve the above object, the present invention provides a method of manufacturing a magnetic tempered plate, comprising: cutting a prepreg containing a synthetic resin into a sheet; cutting the prepreg sheet, forming at least the prepreg sheet a magnetic plate embedded through the prepreg sheet Inserting at least one magnetic plate into the magnetic plate insertion hole; stacking and heat-pressing additional prepreg sheets on the top and bottom of the prepreg sheet on which the magnetic plate is disposed, Forming a magnetically reinforced sheet; and cutting the magnetic reinforced sheet to form at least one magnetic reinforced sheet.

In order to achieve the above object, the present invention provides a magnetic reinforced plate comprising: a stacked prepreg layer composed of stacked and hot pressed multi-sheet prepreg sheets, wherein the stacked prepreg layer is provided with at least one through a magnetic plate embedded in the stacked prepreg layer; at least one magnetic plate embedded in the magnetic plate insertion hole of the stacked prepreg layer; and an upper prepreg layer and a bottom prepreg layer stacked separately And hot pressing on the top and bottom of the stacked prepreg layer on which the magnetic plate is disposed to be integrated with the stacked prepreg layer.

In order to achieve the above object, the present invention provides a magnetic reinforced plate comprising: a prepreg layer comprising a synthetic resin, wherein the prepreg layer is provided with at least one magnetic plate insertion hole penetrating the prepreg layer; at least one magnetic plate And embedded in the magnetic plate insertion hole of the prepreg layer; and an upper prepreg layer and a bottom prepreg layer respectively stacked and hot pressed on the prepreg layer on which the magnetic plate is disposed Top and bottom to integrate with the prepreg layer.

Prior art:

1‧‧‧ tablet

2‧‧‧ Cover

2a, 2b‧‧‧ cover surface

10‧‧‧Magnetic strengthening plate

11‧‧‧Strengthen plate body

11a‧‧‧ recess

12‧‧‧ Thin magnet

this invention:

20‧‧‧Magnetic strengthening board

21‧‧‧Stacked prepreg layer

21a‧‧‧Magnetic board insertion hole

22‧‧‧Upper prepreg layer

23‧‧‧Under layer prepreg

24‧‧‧ magnetic board

31‧‧‧Mixed barrel

32‧‧‧roller

33‧‧‧glass fiber

34‧‧‧Prepreg sheet

35‧‧‧ release film

36‧‧‧Stacked prepreg sheets

37‧‧‧ magnetic board

38, 39‧‧‧Prepreg sheets

40‧‧‧ release film

41‧‧‧Magnetic reinforced sheet

42‧‧‧Magnetic Strengthening Plate

C‧‧‧Adhesive

E‧‧‧Epoxy resin

H‧‧‧ magnetic board insertion hole

1 is a schematic view showing the structure of a cover of a tablet computer having the magnetic reinforced plate of the present invention.

2a is a schematic view showing the planar structure of a conventional magnetic reinforcing plate.

Fig. 2b is a schematic side view showing a conventional magnetic reinforcing plate.

3a is a schematic plan view showing an embodiment of a magnetic reinforcing plate of the present invention.

Fig. 3b is a side view showing the structure of an embodiment of the magnetic reinforcing plate of the present invention.

Fig. 4 is a flow chart showing an embodiment of a method of manufacturing a magnetic reinforced plate according to the present invention.

5a to 5k are detailed schematic diagrams showing a method of manufacturing the magnetic reinforced plate of Fig. 4.

Please refer to FIG. 3a and FIG. 3b for the specificity of the magnetic reinforcing plate 20 according to the present invention. The structure of the embodiment has a stacked prepreg layer 21 as an intermediate layer, an upper prepreg layer 22 as a top layer, and a lower layer prepreg layer 23 as a bottom layer.

The stacked prepreg layer 21, the upper prepreg layer 22 and the lower prepreg layer 23 can be integrated into one body by hot pressing by a press (not shown).

The prepreg is an abbreviation for prepreg, and the prepreg is a sheet product in which the substrate is immersed in reinforced glass fibers. It is a semi-hardened state in which a thermosetting plastic is impregnated into a reinforced fiber, and can be used as an industrial material for a synthetic material product. Carbon fiber, glass fiber, amide fiber and other materials can be used as reinforcing fibers. Materials such as epoxy resin, polyester resin, and thermoplastic resin can be used as the matrix. Compared with other materials, synthetic materials made of prepreg can exhibit enhanced properties in terms of strength, rigidity, corrosion resistance, fatigue limit, wear resistance, impact resistance, and weight reduction.

In the present embodiment, the prepreg is composed of a combination of an epoxy resin and an adhesive on a glass fiber. The stacked prepreg layer 21 is formed by stacking and hot pressing a plurality of prepregs.

Next, the stacked prepreg layer 21 is penetrated to form at least one magnetic plate insertion hole 21a. A magnetic plate 24 is embedded in each of the magnetic plate insertion holes 21a.

The upper prepreg layer 22 and the lower prepreg layer 23 are single layer prepregs. The upper prepreg layer 22 and the lower prepreg layer 23 are stacked and heat pressed against the top and bottom of the stacked prepreg layer 21 on which the magnetic sheets 24 are provided.

Therefore, the magnetic plate 24 embedded in the stacked prepreg layer 21 may be located in the intermediate layer without being exposed, and located between the upper prepreg layer 22 and the lower prepreg layer 23.

With regard to a specific embodiment of the stacked prepreg layer 21, for example, a prepreg sheet of 0.2 mm (millimeter), respectively, may be stacked, and integrated into a thickness of 0.6 mm as a whole by a heat press. As a specific example of the upper prepreg layer 22 and the lower prepreg layer 23, a single layer prepreg having a thickness of 0.1 mm may be used.

However, in a specific embodiment of a different magnetic reinforcing plate 20, a single layer of prepreg sheet can be used in place of the stacked prepreg layer 21. In this case, a single-layer prepreg sheet is disposed between the upper prepreg layer 22 and the lower prepreg layer 23, and has a thickness of 0.6 mm, that is, a thickness of the stacked prepreg layer 21, or a ratio. Stacked The prepreg layer 21 has a relatively thin thickness.

Hereinafter, a method of manufacturing a magnetic reinforced plate according to the above specific embodiment of the present invention will be described in detail.

First, as shown in FIG. 4 and FIG. 5a, the epoxy resin E and the adhesive C are mixed in a mixing tank 31 at a predetermined ratio (S1 of FIG. 4). Next, as shown in FIG. 4 and FIG. 5b, the glass fiber 33 is immersed in the mixed material by the roller 32, and the mixed material can be adhered to the surface of the glass fiber 33.

After the mixed material is fixed, the glass fiber 33 to which the mixed material is attached is cut into a predetermined size to form the prepreg sheet 34 shown in Fig. 5C (S3 of Fig. 4).

Next, a plurality of prepreg sheets 34 are stacked on each other. As in the present embodiment, three prepreg sheets 34 are used, and hot pressing is performed by a press (not shown) or the like (S4 of FIG. 4). , Figure 5d). In the present embodiment, the release film 35 is attached to the surfaces of the top and bottom of the top of the three stacked prepreg sheets 34, respectively, and then hot pressed.

Then, the stacked product after the hot pressing process, that is, the stacked prepreg sheet, is cut into a predetermined size, and the top and bottom release films are removed (S5 of FIG. 4, 36 of FIG. 5e). .

Next, the above-mentioned cut stacked prepreg sheet 36 is further cut by a CNC or the like, and the stacked prepreg sheet 36 is formed into at least one magnetic board embedded through the stacked prepreg sheet 36. Hole H (S6 of Fig. 4, Fig. 5f).

The stacked prepreg sheet 36 on which the magnetic plate insertion holes H have been formed is washed with water and dried by hot air (S7 of Fig. 4, Fig. 5g).

Next, as shown in Fig. 5h, a magnetic plate 37 is embedded in each of the magnetic plate insertion holes H of the washed and dried stacked prepreg sheet 36 (S8 of Fig. 4).

As shown in Figure 5i, additional prepreg sheets 38, 39 are stacked on top and bottom surfaces of the stacked prepreg sheet 36, respectively, wherein the magnetic sheets 37 have been assembled as described above, and The hot pressing is performed via the above-described pressurizing device or the like, and therefore, a magnetic reinforcing plate sheet 41 can be formed (refer to Fig. 5j, S9 of Fig. 4).

In addition, in this embodiment of the invention, the release film 40 is first attached to the prepreg sheet 36 of the stacked prepreg sheet 36 and the top layer and the prepreg sheet of the bottom layer. The opposite top and bottom surfaces of the composition of 39.

Finally, the magnetic reinforced sheet 41 having the top and bottom release film 40 (see FIG. 5i) and having been overheated is cut by a CNC or the like, as shown in FIG. 5j to form a finished product. The magnetic reinforcing plate 42 shown in Fig. 5k (S10 of Fig. 4).

Although the method of manufacturing the above-described magnetic reinforced sheet discloses the formation of the stacked prepreg sheet 36, the embedded magnetic sheet 37, and the top and bottom prepreg sheets 38, 39, the present invention is not limited to the above method. For example, a stacked prepreg sheet 36 can be replaced by a single layer of prepreg sheet (not shown). In this case, the magnetic plate insertion hole H is formed in a single-layer prepreg sheet for embedding the magnetic plate 37, and the prepreg sheets 38 and 39 are stacked on a single layer. The surface of the top of the dip sheet and the surface of the bottom.

In summary, the magnetic reinforced plate and the manufacturing method thereof are provided on a prepreg sheet to form at least one magnetic plate insertion hole, and a magnetic plate is embedded in the magnetic plate insertion hole, and then Additional prepreg sheets are stacked and heat pressed against the top and bottom of the prepreg sheet provided with the magnetic sheets, thereby forming a magnetically reinforced sheet.

Accordingly, since the magnetic plate is disposed inside the reinforcing plate instead of being exposed, the entirety thereof can form a complete integration, and the magnetic plate can be prevented from being detached at all. Further, since the magnetic plate insertion hole for embedding the magnetic plate is formed in the prepreg sheet, it is easy to complete the cutting process.

Further, according to the present invention, since the magnetic sheet is not directly attached to the outer cover, a top prepreg sheet and a bottom prepreg sheet are attached to the surface of the outer cover, so that the magnetic sheet can be simply and firmly Attached and integrated into the cover.

Although the magnetic reinforced plate 20 and the method of manufacturing the same have been disclosed in accordance with the specific embodiments of the present invention, the specific embodiments described above are merely used to illustrate the features and functions of the present invention, and are not intended to limit the present invention. In the scope of the invention, any equivalent changes and modifications made by the disclosure of the present invention should be included in the scope of the following claims.

21‧‧‧Stacked prepreg layer

21a‧‧‧Magnetic board insertion hole

22‧‧‧Upper prepreg layer

23‧‧‧Under layer prepreg

24‧‧‧ magnetic board

Claims (10)

A method for manufacturing a magnetic reinforced plate, comprising: cutting a prepreg containing a synthetic resin into a sheet; stacking and hot pressing a plurality of the prepreg sheets to form a stacked prepreg sheet; cutting The stacked prepreg sheet forms at least one magnetic plate insertion hole penetrating through the stacked prepreg sheet; and at least one magnetic plate is embedded in the magnetic plate insertion hole Stacking and hot pressing additional prepreg sheets on top and bottom of the stacked prepreg sheet on which the magnetic sheets are provided to form a magnetic reinforced sheet; and cutting the magnetic reinforced sheets Material to form at least one magnetic strengthening plate. The method of producing a magnetic tempered sheet according to claim 1, wherein the prepreg sheet is composed of a glass fiber and a mixture of an epoxy resin and an adhesive attached to the glass fiber. The method of manufacturing the magnetic tempered sheet according to claim 1, wherein the step of forming the stacked prepreg sheet comprises: first attaching the release film to the plurality of stacked prepreg sheets. The top and bottom portions are then stacked and hot pressed to the plurality of stacked prepreg sheets. The method for manufacturing a magnetic tempered plate according to claim 3, further comprising: cutting the stack between the step of forming the stacked prepreg sheet and the step of forming the magnetic plate insertion hole After the prepreg sheet is removed, the release film is removed. The method for manufacturing a magnetic reinforced plate according to claim 1, further comprising: a step of forming the at least one magnetic plate insertion hole, and a step of embedding at least one magnetic plate in the magnetic plate insertion hole The stacked prepreg sheet that has formed the at least one magnetic plate insertion hole is cleaned and dried. The method of manufacturing a magnetic tempered plate according to claim 1, wherein the stacked prepreg sheet has a release film attached to the top and the bottom thereof, and the stacked prefilm is attached to the release film. The additional prepreg sheets are stacked and heat pressed on the top and bottom of the dip sheet to form a magnetically reinforced sheet. The method for producing a magnetic reinforced plate according to claim 6, wherein the release film is removed, and then the magnetic reinforced plate sheet is cut to form the at least one magnetic reinforced plate. A method for manufacturing a magnetic reinforced plate, comprising: cutting a prepreg containing a synthetic resin into a sheet; cutting the prepreg sheet, forming at least one through the prepreg sheet on the prepreg sheet a magnetic plate is embedded in the hole; at least one magnetic plate is embedded in the magnetic plate insertion hole; and the additional prepreg sheet is stacked and heat pressed on the top of the prepreg sheet on which the magnetic plate is provided a bottom portion to constitute a magnetic reinforced sheet; and a magnetic reinforced sheet sheet to be cut to form at least one magnetic reinforced sheet. A magnetic reinforced plate comprising: a stacked prepreg layer composed of stacked and hot pressed multi-sheet prepreg sheets, wherein the stacked prepreg layer is provided with at least one magnetic plate extending through the stacked prepreg layer Inserting a hole; at least one magnetic plate embedded in the magnetic plate insertion hole of the stacked prepreg layer; and an upper prepreg layer and a bottom prepreg layer respectively stacked and hot pressed to be provided The top and bottom of the stacked prepreg layer of the magnetic plate are integrated with the stacked prepreg layer. A magnetic reinforced plate comprising: a prepreg layer comprising a synthetic resin, wherein the prepreg layer is provided with at least one magnetic plate insertion hole penetrating the prepreg layer; at least one magnetic plate embedded in the prepreg a magnetic layer of the bulk layer is embedded in the hole; and an upper prepreg layer and a bottom prepreg layer respectively stacked and hot pressed on the top and bottom of the prepreg layer on which the magnetic plate is disposed, and the pre The dip layer is integrated into one.