CN112433462A - Fiber composite material watchcase, watch and manufacturing method of watchcase - Google Patents
Fiber composite material watchcase, watch and manufacturing method of watchcase Download PDFInfo
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- CN112433462A CN112433462A CN202011479999.4A CN202011479999A CN112433462A CN 112433462 A CN112433462 A CN 112433462A CN 202011479999 A CN202011479999 A CN 202011479999A CN 112433462 A CN112433462 A CN 112433462A
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- 229920001643 poly(ether ketone) Polymers 0.000 claims description 4
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Images
Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
- G04B37/225—Non-metallic cases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/08—Injection moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a fiber composite material watchcase, a watch and a manufacturing method of the watchcase, wherein the method comprises the following steps: making a heat-resistant high polymer material into an inner container with a cavity which is communicated up and down through injection molding; the inner container is placed into a fiber composite material forming die, fiber prepreg is filled in a cavity between the outer side of the inner container and the die, the inner container is kept at a preset temperature and under a preset pressure for a preset time to be pressed and formed, and the die is removed after cooling to form a watch shell blank consisting of the heat-resistant high polymer material inner container and the fiber composite material shell. And through the technology of combining high-efficiency and low-cost injection molding and die pressing, the waterproof structure is realized through the liner, the appearance effect and the functions of wear resistance, corrosion resistance and aging resistance are realized through the outer layer fiber composite material, and the large-scale batch production can be realized.
Description
Technical Field
The invention relates to the field of watches, in particular to a fiber composite material watch case, a watch and a manufacturing method of the watch case.
Background
The fiber composite material is a composite material formed by a matrix material and carbon fibers, glass fibers, metal fibers, ceramic fibers and the like, wherein the matrix is mainly epoxy resin. The specific modulus and specific strength of the fiber composite material are higher than those of steel, aluminum and titanium, and the fiber composite material has good performances in the aspects of wear resistance and compression resistance. By adjusting the process, rich patterns and unique texture can be presented. Although the fiber composite material has the excellent performance, the fibers can cut off the matrix of the composite material, so that the fiber composite material is not compact enough and cannot play a waterproof role under pressure. When the fiber composite is used as a watch case, it is required to withstand a water depth pressure of at least 30 m. The water resistance is invalid, and sweat can permeate into the movement to corrode the movement.
In the prior art, the fiber composite material watchcase is provided with a metal, ceramic or alloy inner container through the fiber composite material inner layer, and the insulation of the movement and sweat is realized by the fully compact inner container, so that the waterproof effect is realized. The metal or alloy used as the inner container is required to have high corrosion resistance. The materials used in the prior art are mainly stainless steel, but the density of the stainless steel is close to 8 g/cubic centimeter and much higher than the density of the fiber composite material by about 1 g/cubic centimeter, so that the weight reduction effect caused by using the fiber material is partially lost, and the wearing experience is influenced. In other techniques, the inner container is made of industrial pure titanium or titanium alloy with a density of 4-5 g/cc, but the weight reduction effect is still limited.
In addition, in the prior art, in the preparation of fiber composite parts, the fiber composite and the liner need to be precisely pressed, and in the pressing process, the liner can be subjected to large pressure and high temperature, in patent ZL201720398044.3, a metal or alloy liner blank is firstly processed, then the metal or alloy liner blank is placed into a mold, then carbon fiber composite raw materials are added into the mold, and then pressure and high temperature are applied, so that the liner and the carbon fiber composite are tightly combined. Because the metal or alloy and the carbon fiber composite material have poor affinity and large difference of thermal expansion coefficients, when the shell is subjected to cold and hot impact, the inconsistent expansion easily causes the connection between the inner container and the carbon fiber shell to be loosened or cracked. Patent application 201910422125.6 discloses an outer component made of composite material and a method for manufacturing the outer component by making a reinforcement by additive manufacturing, and then embedding the reinforcement in a synthetic material, wherein the reinforcement is a perforated structure, and the synthetic material is made of a resin selected from the group consisting of fluorinated elastomers (FK, FFKM), polyurethane elastomers (PUR), silicone, thermoplastic elastomers (TPE) and thermosetting materials. When the composite material is used as a clock, the inner layer reinforcing piece only has the function of structural reinforcement due to the through hole structure, and the outer layer composite material has the waterproof function. However, it is known that the above synthetic materials are inferior in color, abrasion resistance, strength, aging property, etc. Meanwhile, the reinforcing piece is manufactured through additive manufacturing, so that the technical scheme is low in efficiency, high in cost and not suitable for large-scale batch production.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provides a fiber composite material watch case, a watch and a watch case manufacturing method in order to reduce the weight of the watch, simplify the watch case manufacturing process, improve the combination fastness of an inner container and a fiber composite material and improve the cold and heat shock resistance.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in one aspect, a method of making a watch case is constructed, the method comprising:
making a heat-resistant high polymer material into an inner container with a cavity which is communicated up and down through injection molding;
and (2) putting the inner container into a fiber composite material forming die, filling fiber prepreg into a cavity between the outer side of the inner container and the die, keeping the temperature for a preset time at a preset temperature and a preset pressure, performing press forming, cooling, and demolding to form a watch shell blank consisting of the heat-resistant high polymer material inner container and the fiber composite material shell.
Preferably, the preset temperature is 150-160 ℃, the preset pressure is 20-200MPa, and the preset time is 1-30 s.
Preferably, the heat-resistant polymer material is a polymer material resistant to a temperature of 160 ℃ or more.
Preferably, the heat-resistant polymer material is PEK or PEEK or PPS.
Preferably, the fiber in the fiber composite material comprises one or more of carbon fiber, glass fiber, metal fiber and ceramic fiber.
Preferably, the fiber composite is a fiber epoxy composite.
In another aspect, a fiber composite watch case is constructed, the watch case comprising an inner container injection molded from a heat-resistant polymer material and a fiber composite case formed by attaching a fiber prepreg to the outside of the inner container by means of press molding.
In another aspect, a fiber composite material watch is constructed, the watch comprises a bottom cover, a watch case, a movement and a dial plate assembly, wherein a cavity penetrating up and down is arranged in the watch case, the dial plate assembly and the bottom cover are respectively assembled with the upper part and the lower part of the watch case and seal the cavity, the movement is arranged in the cavity, the watch case comprises an inner container formed by injection molding of a heat-resistant high polymer material and a fiber composite material shell formed by attaching fiber prepreg to the outer side of the inner container in a mould pressing mode.
Preferably, the outer side of the liner is provided with at least one reinforced connecting structure for increasing the bonding strength of the liner and the fiber composite material.
Preferably, the reinforced connecting structure is a groove and/or a protrusion structure;
preferably, dial plate subassembly includes interior shadow ring, word dish, table glass, and the bottom links to each other with the watchcase lower part to be equipped with first sealing washer at bottom and watchcase binding site, table glass passes through the pressfitting of second sealing washer on watchcase upper portion, interior shadow ring, word dish, core set up in the cavity, the inboard of inner bag is equipped with bears the first boss of word dish and the second boss that bears the core, the core is located word dish below, interior shadow ring is installed on the word dish and is located below the table glass, the position that the inner bag inboard is leaning on the bottom has the cyclic annular seal groove that is used for holding first sealing washer, the position processing that the inner bag inboard is leaning on the upper portion is formed with and is used for the second sealing washer provides the annular slot of deformation space.
Preferably, the watch case is provided with a handle pipe mounting hole for mounting a handle pipe, the handle pipe is in interference fit with the handle pipe mounting hole or is glued with the handle pipe, the handle pipe is inserted in the handle pipe, a third sealing ring and a fourth sealing ring are respectively mounted between the inner side of the handle pipe and the handle and between the outer side of the handle pipe and the handle,
an annular groove for accommodating the third sealing ring is formed in the part of the handle, which is sleeved on the inner side of the handle pipe; the part of the handle, which is sleeved outside the handle pipe, is provided with a boss, the outside of the handle pipe is also sleeved with an annular metal limiting sheet, the fourth sealing ring is clamped between the metal limiting sheet and the boss, and the metal limiting sheet and the handle are in interference fit to prevent the sealing ring from being separated when the handle is pulled out.
The fiber composite material watchcase, the watch and the manufacturing method of the watchcase have the following beneficial effects: the inner container of the watch case is formed by injection molding of a heat-resistant high polymer material, and the fiber prepreg is attached to the outer side of the inner container in a mould pressing mode to form the fiber composite material case, so that the weight of the watch can be reduced, the bonding strength of the inner container and the fiber composite material can be improved, and the inconsistency of thermal expansion is reduced; and through the technology of combining high-efficiency and low-cost injection molding and die pressing, the waterproof structure is realized through the liner, the appearance effect and the functions of wear resistance, corrosion resistance and aging resistance are realized through the outer layer fiber composite material, and the large-scale batch production can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts:
fig. 1 is a schematic view of the structure of the watch according to the invention from different angles of view;
FIG. 2 is a cross-sectional view of the watch of the present invention;
figure 3 is a cross-sectional view of a watch case;
fig. 4 is an assembly schematic of the handle.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Exemplary embodiments of the invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper," "lower," "inboard," "outboard," and similar directional expressions are used herein for purposes of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The terms including ordinal numbers such as "first", "second", and the like used in the present specification may be used to describe various components, but the components are not limited by the terms. These terms are used only for the purpose of distinguishing one constituent element from other constituent elements. For example, a first component may be named a second component, and similarly, a second component may also be named a first component, without departing from the scope of the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The general idea of the invention is as follows: the manufacturing method comprises the steps of manufacturing a liner with a cavity which is through up and down by injection molding of a heat-resistant high polymer material, then placing the liner into a fiber composite material forming mold, filling fiber prepreg into a cavity between the outer side of the liner and the mold, keeping the temperature for a preset time at a preset temperature and a preset pressure, performing press forming, cooling, demolding, forming a watchcase blank consisting of the heat-resistant high polymer material liner and a fiber composite material shell, and then performing precise machining on the watchcase blank.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the specification, and it should be understood that the embodiments and specific features of the embodiments of the present invention are detailed descriptions of the technical solutions of the present application, and are not limited to the technical solutions of the present application, and the technical features of the embodiments and examples of the present invention may be combined with each other without conflict.
Referring to fig. 1-2, the fiber composite material wristwatch of the present invention includes a bottom cover 1, a case 2, a movement 4, and a dial assembly 3, wherein a cavity penetrating up and down is provided in the case 2, the dial assembly 3 and the bottom cover 1 are assembled with an upper portion and a lower portion of the case 2, respectively, and seal the cavity, and the movement 4 is provided in the cavity.
The watch case 2 comprises an inner container 21 formed by injection molding of a heat-resistant high polymer material and a fiber composite material outer shell 22 formed by attaching fiber prepreg to the outer side of the inner container 21 in a mould pressing mode.
Specifically, the invention also designs a manufacturing method of the watchcase 2, which comprises the following steps:
s101: making a heat-resistant high polymer material into an inner container 21 with a cavity which is communicated up and down through injection molding;
the heat-resistant polymer material is preferably a polymer material resistant to 160 ℃ and above, such as PEK, PEEK, PPS, or the like, and is preferably PEEK.
S102: the inner container 21 is placed into a fiber composite material forming mold, a fiber prepreg is filled in a cavity between the outer side of the inner container 21 and the mold, the mold is pressed and formed at a preset temperature and a preset pressure for a preset time, and the mold is removed after cooling to form a shell blank consisting of the heat-resistant high polymer material inner container 21 and the fiber composite material shell 22.
The preset temperature is 150-160 ℃, the preset pressure is 20-200MPa, and the preset time is 1-30 s.
Wherein the fiber composite material is a fiber epoxy resin composite material. The fiber in the fiber composite material comprises one or more of carbon fiber, glass fiber, metal fiber and ceramic fiber.
Several embodiments of the present invention are described in detail below.
Example one
Referring to fig. 1 to 2, the wristwatch includes a case 2, a dial plate assembly 3, a movement 4, a grip pipe 6, a grip 5, first to fourth seal rings 71 to 74, and the like, and the dial plate assembly 3 includes an inner picture ring 32, a dial 31, a watch glass 33, and a hand 34.
The case 2 is provided with a cavity, the bottom cover 1 is connected with the lower part of the case 2, and a first sealing ring 71 is arranged at the joint part of the bottom cover 1 and the case 2. It can be understood that the bottom cover 1 can be pressed on the lower part of the inner container 21 of the watch case 2, or can be connected with the inner container 21 through threads or screws. The watch glass 33 is pressed on the upper part of the watch case 2 through a second sealing ring 72, and the inner shadow ring 32, the dial 31 and the movement 4 are arranged in the cavity.
The dial 31 and the movement 4 are fixed in the cavity of the watch case 2 by screws, specifically, a first boss 214 for bearing the dial 31 and a second boss 215 for bearing the movement 4 are arranged on the inner side of the inner container 21, and the dial 31 and the movement 4 are respectively hung on the corresponding first boss 214 and second boss 215 and fixed with the first boss 214 and second boss 215 by screws. The movement 4 is located in the cavity and below the case 31, and the movement 4 and the case 31 are fastened through screws. The inner shadow ring 32 is arranged on the dial 31, and the inner shadow ring 32 is positioned below the watch glass 33 and is abutted against the watch glass 33 up and down. The movement 4 shaft passes through the hole of the case 31, and the pointer 34 is positioned on the upper part of the case 31 and fixed on the movement 4 shaft (not shown). In this embodiment, the movement 4 is a mechanical or quartz movement. In other embodiments, the movement 4 may also be a smart watch movement.
Referring to fig. 3, the inner side of the inner container 21 preferably has an annular sealing groove 211 near the bottom for accommodating the first sealing ring 71. An annular groove 212 for providing a deformation space for the second sealing ring 72 is formed near the upper portion of the inner container 21, and the section of the annular groove 212 is preferably wedge-shaped. In this embodiment, after cooling and demolding to form a case blank, only the annular groove 212 needs to be machined, and other structures of the case 2 are formed during injection molding and die pressing.
Preferably, at least one reinforced connecting structure 213 for increasing the bonding strength between the liner 21 and the fiber composite material housing 22 is arranged outside the liner 21. The reinforced connecting structures 213 are grooves and/or protrusions. For example, referring to fig. 3, in this embodiment, the outer side of the inner container 21 has 2 bosses, and the 2 bosses are respectively located at the upper portion and the middle portion of the inner container 21, so that the fiber composite material housing 22 and the inner container 21 are in concave-convex connection, and the bonding strength can be increased. In other embodiments, the number of the reinforcing connection structures 213 may be set to 1 or more according to the shape of the product.
Referring to fig. 2 and 4, the handle pipe 6 is connected to the wristwatch case 2, and specifically, the wristwatch case 2 is provided with a handle pipe mounting hole 201 for mounting the handle pipe 6, and the handle pipe 6 is fitted in the handle pipe mounting hole 201 in an interference fit or glued manner. The handle 5 is inserted into the handle tube 6, and a third seal ring 73 and a fourth seal ring 74 are respectively installed between the inner side of the handle tube 6 and the handle 5 and between the outer side of the handle tube 6 and the handle 5. Specifically, the part of the handle 5 sleeved on the inner side of the handle pipe 6 is provided with an annular groove 52, and the third sealing ring 73 is embedded in the annular groove 52. The part of the handle 5 sleeved outside the handle pipe 6 is provided with a boss 53, the outer side of the handle pipe 6 is also sleeved with an annular metal limiting sheet 8, a fourth sealing ring 74 is clamped between the metal limiting sheet 8 and the boss 53, and the metal limiting sheet 8 and the handle 5 are in interference fit to prevent the sealing ring from being separated when the handle 5 is pulled out. The handle 5 is internally provided with a threaded hole 51, and the threaded hole 51 is used for connecting with a timing component of the movement 4.
It is understood that although the embodiment is provided with one handle pipe installation hole 201 only at the 3-hour position, in other embodiments, a plurality of handle pipe installation holes 201 may be provided.
In this embodiment, PEEK is used as the inner container 21, and carbon fiber composite material is used as the case 22 to manufacture the watch case 2. The carbon fiber composite material covers the outer part of the inner container 21 to form the unique appearance effect of the fiber watch and the functions of ageing resistance, wear resistance and the like. The liner 21 is made of PEEK material because the liner 21 needs to reach at least 160 ℃ in the carbon fiber pressing process, so that the carbon fiber prepreg has a better flowing state and is finally cured, and the heat-resistant temperature of PEEK is above 250 ℃, so that the liner can better meet the requirements. Furthermore, the density of PEEK is only 1.3g/cm3And the beneficial effect of light weight of the whole carbon fiber watch can be met. Thirdly, the density of PEEK is high, and the waterproof effect required by the watch can be realized. Meanwhile, PEEK has better forming performance. In addition, PEEK can meet the requirements of sweat corrosion resistance, biological friendliness and the like.
Specifically, when the watch case 2 is manufactured, firstly, the PEEK inner container 21 is prepared through injection molding, then the inner container 21 is placed into a pressing mold made of a carbon fiber composite material, carbon fiber prepreg is filled outside the inner container 21, the temperature is heated to 150-.
The carbon fiber composite material outer shell 22 of the embodiment has a combined density of 1.28g/cm3The waterproof performance reaches 50m, the waterproof material is not corroded by sweat, the bonding force between the liner 21 and the carbon fiber composite material shell 22 is strong, and the liner can resist cold and hot impact of-20-70 ℃ without loosening or bursting. A watch made by using the watch case 2, havingA lighter wearing experience and a beautiful appearance texture.
Example two
Different from the first embodiment, in the present embodiment, the PEK is used as the inner container 21, and the carbon fiber and glass fiber mixed fiber composite material is used as the outer shell to manufacture the ultra-light watch. The watch case 2 was fabricated in the same manner as in the first example, except that the applied pressure was 20 to 50MPa and the dwell time was 5 to 15 seconds, so that the glass fiber flowed in the resin to form a unique pattern.
EXAMPLE III
In the embodiment, the PEEK is used as the inner container 21, and the metal fiber composite material is used as the outer shell to manufacture the ultra-light watch. The watch case 2 was fabricated in the same manner as in the first example, except that the applied pressure was 50-200MPa and the dwell time was 10-15 s, so that the metal fibers and the resin were sufficiently wetted to provide a good bonding strength.
Example four
In the embodiment, the ultra-light watch is manufactured by taking PPS as an inner container 21 and taking a ceramic fiber composite material as a shell. The manufacturing method of the watch case 2 is the same as that of the first embodiment except that the applied pressure is 10-40MPa and the dwell time is 10-30 s.
It is understood that other combinations than the above described embodiments may be realized within the scope of the invention.
In conclusion, the beneficial effects of the invention are as follows: compared with the existing fiber composite material watch adopting metal as the inner container, the invention adopts the heat-resistant high polymer material to manufacture the inner container as the inner container, can greatly reduce the weight brought by the original metal inner container, and reduce the risks of part loosening, spalling and the like caused by poor bonding fastness and large difference of thermal expansion coefficients of the metal inner container and the fiber composite material shell; compared with the existing watch manufacturing scheme that the reinforcing piece is manufactured through material increase manufacturing and then embedded into a synthetic material, the outer layer of the watch is made of the fiber composite material, the appearance of the watch is provided with a unique texture effect, and the watch is better in corrosion resistance, ageing resistance, strength and other performances.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method of making a watch case, the method comprising:
making a heat-resistant high polymer material into an inner container with a cavity which is communicated up and down through injection molding;
and (2) putting the inner container into a fiber composite material forming die, filling fiber prepreg into a cavity between the outer side of the inner container and the die, keeping the temperature for a preset time at a preset temperature and a preset pressure, performing press forming, cooling, and demolding to form a watch shell blank consisting of the heat-resistant high polymer material inner container and the fiber composite material shell.
2. The method according to claim 1, wherein the preset temperature is 150-160 ℃, the preset pressure is 20-200MPa, and the preset time is 1-30 s.
3. The method according to claim 1, wherein the heat-resistant polymer material is a polymer material resistant to a temperature of 160 ℃ or more.
4. The method of claim 2, wherein the heat resistant polymer material is PEK or PEEK or PPS.
5. The method according to claim 1, wherein the fiber composite material is a fiber epoxy resin composite material, and the fibers in the fiber composite material comprise one or more of carbon fibers, glass fibers, metal fibers and ceramic fibers.
6. A fiber composite watch case manufactured by the method according to any one of claims 1 to 5, comprising an inner container injection-molded from a heat-resistant polymer material and a fiber composite watch case formed by attaching a fiber prepreg to the outside of the inner container by molding.
7. A fiber composite material watch is characterized by comprising a bottom cover, a watch shell, a movement and a dial plate assembly, wherein a cavity which is communicated up and down is arranged in the watch shell, the dial plate assembly and the bottom cover are respectively assembled with the upper part and the lower part of the watch shell and seal the cavity, the movement is arranged in the cavity, the watch shell is manufactured based on the method of any one of claims 1 to 5, and the watch shell comprises an inner container which is formed by injection molding of a heat-resistant high polymer material and a fiber composite material shell which is formed by attaching fiber prepreg to the outer side of the inner container in a mould pressing mode.
8. The watch of claim 7, wherein at least one reinforced connection structure for increasing the bonding strength between the inner container and the fiber composite material is arranged on the outer side of the inner container.
9. The watch of claim 8,
the reinforced connecting structure is a groove and/or a protrusion structure;
dial plate subassembly includes interior shadow ring, word dish, table glass, and the bottom links to each other with the watchcase lower part to be equipped with first sealing washer at bottom and watchcase binding site, table glass passes through the pressfitting of second sealing washer on watchcase upper portion, interior shadow ring, word dish, core set up in the cavity, the inboard of inner bag is equipped with bears the first boss of word dish and the second boss that bears the core, the core is located word dish below, interior shadow ring is installed on the word dish and is located below the table glass, the position that the inner bag inboard is leaning on the bottom has the annular seal groove that is used for the first sealing washer of holding, the inner bag inboard is being formed with the position processing by upper portion and is used for doing the second sealing washer provides the annular slot in deformation space.
10. The watch according to claim 7, wherein the case is provided with a handle pipe mounting hole for mounting a handle pipe, the handle pipe is fitted with the handle pipe mounting hole in an interference fit manner or is glued to the handle pipe mounting hole, a handle is inserted into the handle pipe, a third seal ring and a fourth seal ring are respectively mounted between the inner side of the handle pipe and the handle and between the outer side of the handle pipe and the handle,
an annular groove for accommodating the third sealing ring is formed in the part of the handle, which is sleeved on the inner side of the handle pipe; the part of the handle, which is sleeved outside the handle pipe, is provided with a boss, the outside of the handle pipe is also sleeved with an annular metal limiting sheet, the fourth sealing ring is clamped between the metal limiting sheet and the boss, and the metal limiting sheet and the handle are in interference fit to prevent the sealing ring from being separated when the handle is pulled out.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011479999.4A CN112433462A (en) | 2020-12-15 | 2020-12-15 | Fiber composite material watchcase, watch and manufacturing method of watchcase |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011479999.4A CN112433462A (en) | 2020-12-15 | 2020-12-15 | Fiber composite material watchcase, watch and manufacturing method of watchcase |
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| CN112433462A true CN112433462A (en) | 2021-03-02 |
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| CN202011479999.4A Pending CN112433462A (en) | 2020-12-15 | 2020-12-15 | Fiber composite material watchcase, watch and manufacturing method of watchcase |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115437232A (en) * | 2021-06-01 | 2022-12-06 | 卡西欧计算机株式会社 | Exterior member, case, and timepiece |
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| WO2017097613A1 (en) * | 2015-12-10 | 2017-06-15 | Oris Sa | Method for making a carbon fibre watchcase and carbon watchcase obtained therefrom |
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| CN213843792U (en) * | 2020-12-15 | 2021-07-30 | 飞亚达精密科技股份有限公司 | Fiber composite material watchcase and watch |
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| JPH07140262A (en) * | 1993-11-18 | 1995-06-02 | Seiko Instr Inc | Plastic case for timepiece |
| CN103037642A (en) * | 2011-09-30 | 2013-04-10 | 深圳富泰宏精密工业有限公司 | Shell, electronic device using the same and manufacturing method thereof |
| WO2017097613A1 (en) * | 2015-12-10 | 2017-06-15 | Oris Sa | Method for making a carbon fibre watchcase and carbon watchcase obtained therefrom |
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