CN115042348A - A carbon fiber bicycle frame mold - Google Patents

Abstract

The invention relates to a carbon fiber bicycle frame die, comprising: the frame mold core assembly, the upper mold assembly and the lower mold assembly; the upper die assembly and the lower die assembly are symmetrical in structure up and down; a first section mould groove and a second section mould groove are respectively arranged in the upper mould component and the lower mould component; the first section mould groove and the second section mould groove respectively correspond to the outlines of two sides of the bicycle frame; the frame mold core assembly and the frame assembly are uniformly distributed in the first section mold groove and the second section mold groove; the frame mold core assembly can be matched with the upper mold assembly and the lower mold assembly, and frame components arranged in the first mold groove and the second mold groove are heated and die-cast into a finished rough blank of the bicycle frame. The bicycle frame die provided by the invention has the advantages of high precision, convenience in use and high efficiency, and further greatly reduces the processing and manufacturing cost of the carbon fiber bicycle frame.

Description

A carbon fiber bicycle frame mold

technical field

The invention belongs to the technical field of carbon fiber bicycles, and particularly relates to a carbon fiber bicycle frame mold.

Background technique

Carbon fiber frames are characterized by light weight, good rigidity, and good shock absorption. However, it is not technically easy to give full play to the excellent performance of carbon fiber, and the quality of carbon fiber material manufacturers varies greatly. The carbon fiber frame has the advantages that other materials do not have, and it can manufacture a lightweight bicycle of about 8 or 9kg. This carbon fiber lightweight bicycle can best reflect its advantages when climbing a slope, and the climbing is smooth and refreshing. Unlike some light aluminum frames, it feels a pull back when climbing.

However, the current carbon fiber bicycle frame is difficult to be widely promoted due to its high cost to expand the market. The reasons for the high cost: one is the high cost of the material itself, and the other is the low level of the current carbon fiber bicycle frame manufacturing process, and the complex manufacturing process further aggravates the cost of the finished product.

SUMMARY OF THE INVENTION

(1) Technical problems to be solved

In order to solve the above problems of the prior art, the present invention provides a carbon fiber bicycle frame mold, which not only has high precision, but also is convenient to use and has high efficiency, thereby greatly reducing the processing and manufacturing cost of the carbon fiber bicycle frame.

(2) Technical solutions

In order to achieve the above-mentioned purpose, the main technical scheme adopted in the present invention includes:

A carbon fiber bicycle frame mold, comprising: a frame core assembly, an upper mold assembly and a lower mold assembly;

The structures of the upper die assembly and the lower die assembly are symmetrical up and down;

The upper mold assembly and the lower mold assembly are respectively provided with a first mold groove and a second mold groove;

The first mold groove and the second mold groove correspond to the contours on both sides of the bicycle frame respectively;

The frame core components and the frame components are both arranged in the first mold groove and the second mold groove;

The frame mold core assembly can cooperate with the upper mold assembly and the lower mold assembly to heat and die cast the frame components placed in the first mold groove and the second mold groove into a bicycle frame The rough stock of the finished product.

Preferably, the frame components include: a frame preform and a carbon fiber material;

The frame preform is connected with the frame core assembly for splicing into the inner mold shape of the finished frame blank;

The carbon fiber material is wrapped on the surface of the frame preform and the frame core assembly.

Preferably, the frame preform includes: an upper tube, a lower tube and a seat tube;

Both ends of the upper tube are respectively connected with the upper end of the lower tube and the upper end of the seat tube;

the lower end of the down tube is connected with the lower end of the seat tube;

The upper tube, the lower tube and the seat tube form the skeleton of the triangular frame.

Preferably, a first connector is provided at the connection between the upper pipe and the lower pipe;

A second connector is provided at the connection between the upper tube and the seat tube;

A third connector is provided at the connection between the down tube and the seat tube;

The bottom of the down tube is provided with a fourth connecting piece.

Preferably, the frame core assembly includes: a metal insert module and a metal axle module;

The metal insert module is arranged in the first mold groove and the second mold groove and is movably connected with the frame assembly;

The metal axle module is arranged in the first mold groove and the second mold groove and is movably connected with the frame assembly.

Preferably, the metal insert module comprises: a first movable metal insert and a second movable metal insert;

The structure of the first movable metal insert is the same as that of the motor mounting groove;

The structure of the second movable metal insert is the same as that of the battery box mounting slot;

the first movable metal insert is connected with the third connector;

The second movable metal insert is connected with the fourth connecting piece.

Preferably, the metal shaft module comprises: a first movable metal circular hole insert and a second movable metal insert;

The first movable metal circular hole insert is connected with the first connecting piece to form the inner mold of the connecting hole of the front fork of the frame;

The second movable metal circular hole insert is connected with the second connecting piece to form the inner mold of the connecting hole of the vehicle seat.

Preferably, the metal shaft module further comprises: a first metal shaft, a second metal shaft and a third metal shaft;

The first metal shaft is arranged on the rear side of the seat tube to form an inner mold of the rear fork connecting hole;

The second metal shaft is arranged on the front side of the seat tube to form an inner mold of the first shock-absorbing mounting through hole;

The third metal shaft is disposed on the upper side of the lower tube to form an inner mold of the second shock-absorbing mounting through hole.

Preferably, the upper mold assembly includes: an upper mold shell and an upper inner mold cover;

The first mold groove is located on the inner side of the upper mold shell;

The upper inner mold cover can cover the first movable metal insert, and is detachably connected and arranged on the top surface of the first movable metal insert.

Preferably, the lower mold assembly includes: a lower mold shell and a lower inner mold cover;

the second mold groove is located inside the lower mold shell;

The lower inner mold cover can cover the first movable metal insert, and is detachably connected to the bottom surface of the first movable metal insert.

(3) Beneficial effects

The beneficial effects of the present invention are: a carbon fiber bicycle frame mold provided by the present invention has the following beneficial effects:

The mold provided by the application has high precision, simple structure, simple processing and manufacturing procedures, and high efficiency, thereby greatly reducing the processing and manufacturing cost of the carbon fiber bicycle frame.

Description of drawings

Fig. 1 is the structural representation of a kind of carbon fiber bicycle frame mould provided by the present invention;

2 is a schematic structural diagram of a carbon fiber bicycle frame blank in an embodiment of a carbon fiber bicycle frame mold provided by the present invention.

[Description of reference numerals]

1: upper mold shell; 101: upper inner mold cover; 2: lower mold shell; 201: lower inner mold cover; 3: frame preform; 401: first movable metal insert; 402: second movable metal inserts; 403: first movable metal inserts; 404: second movable metal inserts; 405: first metal shafts; 406: second metal shafts; 407: third metal shafts.

Detailed ways

In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below with reference to the accompanying drawings and through specific embodiments.

As shown in FIG. 1: this embodiment discloses a carbon fiber bicycle frame mold, including: a frame core assembly, an upper mold assembly and a lower mold assembly; the upper mold assembly and the lower mold assembly The structure is symmetrical up and down; the upper mold assembly and the lower mold assembly are respectively provided with a first mold groove and a second mold groove; the first mold groove and the second mold groove The mold grooves correspond to the contours of the two sides of the bicycle frame respectively; the frame mold core components and the frame components are both arranged in the first mold groove and the second mold groove. The frame mold core assembly can cooperate with the upper mold assembly and the lower mold assembly to heat and die cast the frame components placed in the first mold groove and the second mold groove into a bicycle frame The rough stock of the finished product.

It should be noted that the inner contours of the grooves of the first mold and the second mold groove in this embodiment match the contours of the bicycle frame. The components and the carbon fiber material cover are pressed into the grooves of the first mold and the grooves of the second mold, and are then pressure-heated and blow-molded to form a rough blank of the bicycle frame product.

Before placing the preform, the frame core assembly and the carbon fiber material, it is also necessary to wipe off the oil stains on the frame mold; brush the film agent on the frame mold; apply the release agent to the frame mold; The frame mold is cleaned and blown dry; the frame mold is cooled or heated to 40-60°C;

The frame components described in this embodiment include: a frame preform 3 and a carbon fiber material; the frame preform 3 is connected with the frame core assembly for splicing into a finished frame blank The shape of the inner mold; the carbon fiber material is wrapped on the surface of the frame preform 3 and the frame core assembly.

The frame preform 3 described in this embodiment includes: an upper tube, a lower tube and a seat tube; two ends of the upper tube are respectively connected with the upper end of the lower tube and the upper end of the seat tube; the The lower end of the down tube is connected with the lower end of the seat tube; the upper tube, the down tube and the seat tube form the framework of the triangular frame.

The frame preform can be an integrally formed structure, or a three-section spliced structure, etc. The purpose is to form a tripod-shaped structure for manufacturing the blank before preparing the blank of the frame.

In this embodiment, a first connector is provided at the connection between the upper tube and the lower tube; a second connector is provided at the connection between the upper tube and the seat tube; the lower tube and the seat are provided with a second connector. A third connecting piece is arranged at the joint of the pipe; a fourth connecting piece is arranged at the bottom of the lower pipe.

In this embodiment, the frame core assembly includes: a metal insert module and a metal shaft module; the metal insert module is arranged in the first mold groove and the second mold groove inside and movably connected with the frame components. The metal axle module is arranged in the first mold groove and the second mold groove and is movably connected with the frame assembly.

In this embodiment, the metal insert module includes: a first movable metal insert 401 and a second movable metal insert 402; the structure of the first movable metal insert 401 is the same as that of the motor mounting slot. The structure of the second movable metal insert 402 is the same as that of the battery box installation slot; the first movable metal insert 401 is connected to the third connecting piece; the second movable metal insert 402 is connected to the The fourth connector is connected.

In this embodiment, the metal shaft module includes: a first movable metal round hole insert 403 and a second movable metal hole insert 404; the first movable metal round hole insert 403 is connected with the first connecting piece, The inner mold used to form the connection hole of the front fork of the frame. The second movable metal circular hole insert 404 is connected with the second connecting piece to form the inner mold of the connecting hole of the vehicle seat.

In this embodiment, the metal shaft module further includes: a first metal shaft 405, a second metal shaft 406 and a third metal shaft 407; the first metal shaft 405 is arranged on the rear side of the seat tube for The inner mold that forms the connecting hole of the rear fork. The second metal shaft 406 is arranged on the front side of the seat tube to form the inner mold of the first shock absorbing installation through hole; An inner mold that constitutes the second shock-absorbing mounting through hole.

In this embodiment, the upper mold assembly includes: an upper mold shell 1 and an upper inner mold cover 101; the first mold groove is located inside the upper mold shell 1; the upper inner mold cover 101 It can be covered on the first movable metal insert 401 , and can be detachably connected to the top surface of the first movable metal insert 401 .

In this embodiment, the lower mold assembly includes: a lower mold shell 2 and a lower inner mold cover 201 ; the second mold groove is located inside the lower mold shell 2 ; the lower inner mold cover 201 It can cover the first movable metal insert 401 and be detachably connected to the bottom surface of the first movable metal insert 401 .

As shown in Figure 2: the frame product in this embodiment is provided with front fork mounting holes, seat mounting holes, rear fork mounting holes, motor mounting grooves, battery mounting grooves, first shock absorber mounting holes, and second shock absorber mounting holes. Shock mount holes.

Among them, the front fork mounting hole is used to install and connect with the front fork frame; the seat mounting hole is used to install the seat of the bicycle; the rear fork mounting hole is used to install and connect the rear fork frame; the motor installation slot is used to install and connect the motor module; The battery installation slot is used for installing the battery module; the first shock-absorbing installation hole is used for installing the first shock absorber; the second shock-absorbing installation hole is used for installing the second shock absorber.

The mold provided in this embodiment has high precision, simple structure, and simple processing and manufacturing procedures, thereby greatly reducing the processing and manufacturing cost of the carbon fiber bicycle frame.

The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are only for explaining the principles of the present invention, and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative efforts, and these methods will all fall within the protection scope of the present invention.

Claims (10)

1. a carbon fiber bicycle frame mould, is characterized in that, comprises: frame mould core assembly, upper mould assembly and lower mould assembly; The structures of the upper die assembly and the lower die assembly are symmetrical up and down; The upper mold assembly and the lower mold assembly are respectively provided with a first mold groove and a second mold groove; The first mold groove and the second mold groove correspond to the contours on both sides of the bicycle frame respectively; The frame core components and the frame components are both arranged in the first mold groove and the second mold groove; The frame mold core assembly can cooperate with the upper mold assembly and the lower mold assembly to heat and die cast the frame components placed in the first mold groove and the second mold groove into a bicycle frame The rough stock of the finished product. 2. The mould according to claim 1, characterized in that, The frame components include: a frame preform and a carbon fiber material; The frame preform is connected with the frame core assembly for splicing into the inner mold shape of the finished frame blank; The carbon fiber material is wrapped on the surface of the frame preform and the frame core assembly. 3. The mould according to claim 2, wherein The frame preform includes: an upper tube, a lower tube and a seat tube; Both ends of the upper tube are respectively connected with the upper end of the lower tube and the upper end of the seat tube; the lower end of the down tube is connected with the lower end of the seat tube; The upper tube, the lower tube and the seat tube form the skeleton of the triangular frame. 4. The mold according to claim 3, characterized in that, A first connector is provided at the connection between the upper tube and the lower tube; A second connector is provided at the connection between the upper tube and the seat tube; A third connector is provided at the connection between the down tube and the seat tube; The bottom of the down tube is provided with a fourth connecting piece. 5. The mould according to claim 4, wherein The frame core assembly includes: a metal insert module and a metal shaft module; The metal insert module is arranged in the first mold groove and the second mold groove and is movably connected with the frame assembly; The metal axle module is arranged in the first mold groove and the second mold groove and is movably connected with the frame assembly. 6. The mold according to claim 5, characterized in that, The metal insert module includes: a first movable metal insert and a second movable metal insert; The structure of the first movable metal insert is the same as that of the motor mounting groove; The structure of the second movable metal insert is the same as that of the battery box mounting slot; the first movable metal insert is connected with the third connector; The second movable metal insert is connected with the fourth connecting piece. 7. The mold according to claim 6, characterized in that, The metal shaft module includes: a first movable metal circular hole insert and a second movable metal insert; The first movable metal circular hole insert is connected with the first connecting piece to form the inner mold of the connecting hole of the front fork of the frame; The second movable metal circular hole insert is connected with the second connecting piece to form the inner mold of the connecting hole of the vehicle seat. 8. The mold according to claim 7, wherein The metal shaft module further includes: a first metal shaft, a second metal shaft and a third metal shaft; The first metal shaft is arranged on the rear side of the seat tube to form an inner mold of the rear fork connecting hole; The second metal shaft is arranged on the front side of the seat tube to form an inner mold of the first shock-absorbing mounting through hole; The third metal shaft is disposed on the upper side of the lower tube to form an inner mold of the second shock-absorbing mounting through hole. 9. The mold of claim 8, wherein The upper mold assembly includes: an upper mold shell and an upper inner mold cover; The first mold groove is located on the inner side of the upper mold shell; The upper inner mold cover can cover the first movable metal insert, and is detachably connected and arranged on the top surface of the first movable metal insert. 10. The mold according to claim 9, characterized in that, The lower mold assembly includes: a lower mold shell and a lower inner mold cover; the second mold groove is located inside the lower mold shell; The lower inner mold cover can cover the first movable metal insert, and is detachably connected to the bottom surface of the first movable metal insert.

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