CN110936524A - Forming die and method for carbon fiber box - Google Patents
Forming die and method for carbon fiber box Download PDFInfo
- Publication number
- CN110936524A CN110936524A CN201911137237.3A CN201911137237A CN110936524A CN 110936524 A CN110936524 A CN 110936524A CN 201911137237 A CN201911137237 A CN 201911137237A CN 110936524 A CN110936524 A CN 110936524A
- Authority
- CN
- China
- Prior art keywords
- die
- carbon fiber
- wall
- silica gel
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
- B29C33/14—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
-
- 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
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
-
- 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
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/541—Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7162—Boxes, cartons, cases
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a forming die and a forming method of a carbon fiber box body, wherein the forming die comprises a lower die, an upper die, a silica gel inner die and a cover plate; the upper die is provided with an inner cavity with an opening at the upper end and used for laying carbon fiber cloth, and the inner wall of the upper end of the lower die is provided with a first step; an opening is arranged in the middle of the upper die, the upper die is detachably arranged in the first step, the inner side of the upper die extends inwards out of the inner wall of the lower die, and a second step is arranged on the inner wall of the upper end of the upper die; the silica gel centre form has inner chamber and upper end opening, and the silica gel centre form corresponds to arrange in the opening of mould in and the lower part corresponds the inner wall of laminating carbon cloth, and upper portion is fixed and is formed with seal structure by the apron pressure, and the silica gel centre form can make the lower part of silica gel centre form closely laminate with carbon cloth's inner wall through aerifing the inflation. The invention also discloses a forming method of the carbon fiber box body. The invention can produce the carbon fiber box body which is only provided with an opening on one side surface and the area of the opening is smaller than that of the side surface.
Description
Technical Field
The invention relates to the technical field of carbon fiber product manufacturing, in particular to a forming die and a forming method of a carbon fiber box body.
Background
Draw-bar boxes have long become necessary luggage articles for people to go out or travel for a short time, and due to different sizes and capacities, the draw-bar boxes can contain different numbers of articles or different sizes. Traditional draw-bar box is generally made by PVC material or metal etc. and these draw-bar boxes generally all include two upper and lower box, set up the pull rod on one of them box, and one side of two boxes is through articulated, and two boxes can be closed through zip fastener or hasp etc.. However, these cases have certain disadvantages in terms of appearance, capacity, etc., such as that since the draw-bar case is composed of two cases and is opened between the two cases, it is not suitable to contain too much contents, which are easily dropped when the case is opened, and for this reason, it is often necessary to appropriately reduce the placement of the articles, which makes the inner space of the draw-bar case not reasonably utilized, that is, the available capacity of the draw-bar case is reduced; meanwhile, due to the reasons of process, materials and the like, the integrated box body which is provided with the opening only on one side face of the box body and the area of the opening is smaller than that of the side face is difficult to manufacture by the materials. At present, a novel box body made of carbon fibers is also produced in the market, and the carbon fibers not only have the inherent intrinsic characteristics of carbon materials, but also have the soft processability of textile fibers, so that the carbon fibers have wide application prospects. However, how to conveniently and quickly manufacture the integrated box body with the structure by using carbon fiber becomes a problem to be solved by people.
Disclosure of Invention
The invention aims to provide a forming die and a forming method of a carbon fiber box body, which have simple and reasonable structures and can conveniently and quickly manufacture the carbon fiber box body which is provided with an opening only on one side surface of the box body and the area of the opening is smaller than that of the side surface by using the die and the forming method.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a forming die for a carbon fiber box body comprises a lower die, an upper die, a silica gel inner die and a cover plate; an inner cavity which is used for laying carbon fiber cloth and is provided with an opening at the upper end is arranged in the middle of the lower die, and a first step surrounding the inner cavity of the lower die is arranged on the inner wall of the upper end of the lower die; an opening is formed in the middle of the upper die, the upper die is detachably mounted in the first step, the inner side of the upper die extends inwards out of the inner wall of the lower die so that the bottom surface of the inner side of the upper die can be attached to the outer wall of the inward-bent part at the upper end of the carbon fiber cloth, and a second step surrounding the opening is formed in the inner wall at the upper end of the upper die; the silica gel inner die is provided with an inner cavity and an opening at the upper end, the silica gel inner die is arranged in the opening of the upper die, the outer wall of the lower part of the silica gel inner die is matched and attached to the inner wall of the carbon fiber cloth, the upper part of the silica gel inner die is correspondingly clamped in the second step, and the silica gel inner die can enable the outer wall of the lower part of the silica gel inner die to be tightly attached to the inner wall of the carbon fiber cloth through inflation and expansion; the cover plate is fixed above the lower die and used for compressing and fixing the upper die and the upper part of the silica gel inner die, so that a sealing structure is formed between the upper part of the silica gel inner die and the bottom surface of the cover plate and the bottom surface of the second step.
As a specific embodiment, the upper part of the silica gel inner mold comprises a vertical part and a horizontal part which are sequentially connected with the lower part of the silica gel inner mold; the outer wall of the vertical part is correspondingly attached to the inner wall of the upper die; the horizontal portion is clamped in the second step and is pressed and fixed by the cover plate, so that a sealing structure is formed between the upper end surface and the lower end surface of the horizontal portion, the bottom surface of the cover plate and the bottom surface of the second step.
As a specific embodiment, an air inlet channel communicated with the inner cavity of the silica gel inner die is arranged in the cover plate.
As a specific embodiment, a vacuumizing diversion trench which surrounds the inner cavity of the lower die and is communicated with an air outlet channel arranged on the lower die is arranged on the bottom surface of the first step; and a sealing element is arranged between the outer wall of the upper die and the side wall of the first step.
Further, a third step is arranged on the outer wall of the upper end of the upper die; a fourth step corresponding to the third step is arranged on the side wall of the upper end of the first step; the seal is disposed on the third step and the fourth step.
Furthermore, a flow guide hole which is respectively communicated with the vacuumizing flow guide groove and the air outlet channel is arranged on the bottom surface of the first step; the diameter of the flow guide hole is larger than the width of the vacuumizing flow guide groove and the diameter of the air outlet channel.
As a specific embodiment, a groove surrounding the opening is provided on the bottom surface of the inner side of the upper mold.
As a specific embodiment, two first protrusions are protruded on one side of the inner wall of the lower mold in bilateral symmetry; two second lugs are symmetrically protruded from the bottom of the upper die on the side corresponding to the first lug; and the first step is provided with a corresponding mounting position for inserting the second bump.
Further, a third bump is arranged on the side, opposite to the first bump, of the inner wall of the lower die.
A forming method of a carbon fiber box body is characterized by comprising the following steps: the forming die for the carbon fiber box body comprises the following steps:
(1) firstly, the upper die is installed in the lower die, and the sealing element is arranged at the connecting position of the side wall of the upper die and the lower die;
(2) cutting carbon fiber cloth according to the shape and size of the carbon fiber box body to be manufactured, and then correspondingly laying a plurality of layers of the cut carbon fiber cloth in the lower die, so that the carbon fiber cloth is attached to the inner wall of the lower die, and the upper end of the carbon fiber cloth is attached to the bottom surface of the inner side of the upper die to form an inward bending part;
(3) correspondingly installing the silica gel inner die on the carbon fiber cloth, correspondingly attaching the carbon fiber cloth to the lower part of the silica gel inner die, and correspondingly clamping the upper part of the silica gel inner die in a second step of the upper die;
(4) the cover plate is arranged on the lower die, so that the cover plate presses the upper part of the silica gel inner die;
(5) a certain amount of compressed air is introduced into the air inlet channel in the cover plate, so that the silica gel inner mold continuously tends to expand outwards, and the silica gel inner mold is tightly attached to the inner wall of the carbon fiber cloth;
(6) the air outlet channel is connected with an air extractor for air extraction, so that vacuum is formed at the contact positions of the inner wall and the outer wall of the carbon fiber cloth and the lower die, the upper die and the silica gel inner die respectively;
(7) heating the forming die to solidify and form the carbon fiber cloth;
(8) closing the heating device and cooling the forming die;
(9) and demolding to obtain the carbon fiber box body.
The invention has the beneficial effects that:
the forming die and the method can conveniently and quickly produce and manufacture the carbon fiber box body which is provided with the opening only on one side surface and the area of the opening is smaller than that of the side surface, and the carbon fiber box body with the structure is more attractive and has larger capacity. Simultaneously, the assembly and disassembly of the forming die are very convenient, and the grooves, the first bulges, the second bulges and the third bulges are arranged at the corresponding positions on the lower die and the upper die, so that the carbon fiber cloth can be simultaneously cured and formed into the arc bulges, the truckle mounting positions, the pull rod mounting positions and the like at one time, and the forming die does not need to be manufactured by other dies or methods, and is simple and convenient in process. When setting up through the silica gel centre form then can make compressed gas get into forming die in, the silica gel centre form can closely laminate the interior lateral wall of carbon cloth with bed die, last mould and silica gel centre form respectively through the inflation, prevents that it from warping to unevenness's the condition can not appear in the interior lateral wall of the carbon fiber box after making the carbon cloth shaping. Unevenness can be further prevented from occurring on the inner wall surface and the outer wall surface of the carbon fiber box body by arranging the vacuumizing diversion trench and the air outlet channel.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top plan view of the present invention in use;
FIG. 3 is a cross-sectional view taken along A-A in FIG. 2;
FIG. 4 is an enlarged view at C in FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 6 is an enlarged view D of FIG. 5;
FIG. 7 is a schematic structural view of the lower mold of the present invention;
FIG. 8 is a first schematic structural view of an upper mold of the present invention;
FIG. 9 is a second schematic structural view of the upper mold of the present invention;
FIG. 10 is a schematic structural view of a carbon fiber tank of the present invention.
Reference numerals:
1. a lower die; 11. a first step; 12. an air outlet channel; 13. vacuumizing the diversion trench; 14. a flow guide hole; 15. a first bump; 16. an installation position; 17. a third bump; 2. an upper die; 21. an opening; 22. a second step; 23. a groove; 24. a second bump; 3. a silica gel inner mold; 31. a vertical portion; 32. a horizontal portion; 4. a cover plate; 5. a seal member; 100. carbon fiber cloth; 101. an inner bent portion; 102. an arc-shaped bulge; 103. a caster wheel mounting position; 104. a pull rod mounting position.
Detailed Description
The invention will be further elucidated with reference to the drawings and the embodiments, which are exemplary only and do not limit the scope of the invention.
As shown in fig. 1-9, a forming mold for a carbon fiber box comprises a lower mold 1, an upper mold 2, a silica gel inner mold 3 and a cover plate 4; an inner cavity which is used for laying carbon fiber cloth 100 (the surface of the carbon fiber cloth 100 is coated with resin) and is provided with an opening at the upper end is arranged in the middle of the lower die 4, a first step 11 which surrounds the inner cavity of the lower die 1 is arranged on the inner wall of the upper end of the lower die 1, an opening 21 is arranged in the middle of the upper die 2, the upper die 2 is detachably arranged in the first step 11, the inner side of the upper die 2 extends out of the inner wall of the lower die 1 inwards, and a second step 22 which surrounds the opening 21 is arranged on the inner wall of the upper end of; the silica gel inner die 3 is provided with an inner cavity and an opening at the upper end, the silica gel inner die 3 is arranged in the opening 21 of the upper die 2, the outer wall of the lower part of the silica gel inner die 3 is matched and attached to the inner wall of the carbon fiber cloth 100, the upper part of the silica gel inner die 3 is correspondingly clamped in the second step 22, and the silica gel inner die 3 can enable the outer wall of the lower part of the silica gel inner die 3 to be tightly attached to the inner wall of the carbon fiber cloth 100; the cover plate 4 is fixed above the lower mold 1 and compresses and fixes the upper mold 2 and the upper portion of the inner silica gel mold 3, so that a sealing structure is formed between the upper portion of the inner silica gel mold 3 and the bottom surface of the cover plate 4 and the bottom surface of the second step 22, preferably, the top surface of the upper mold 2 is flush with the top surface of the lower mold 1. Because a box forming space is formed between the inner cavity of the lower die 1 and the inner bottom surface of the upper die 2, the carbon fiber cloth 100 is used for being laid in the box forming space, specifically, when the carbon fiber cloth 100 is laid, the lower part of the carbon fiber cloth 100 is correspondingly laid on the inner wall of the lower die 1, the upper part of the carbon fiber cloth 100 is bent inwards to form an inward bent part 101, and the outer wall of the inward bent part 101 is attached to the inner bottom surface of the upper die 2. In this embodiment, the lower mold 1, the upper mold 2 and the cover plate 4 are made of metal materials, and the silica gel inner mold 3 is made of high temperature resistant silica gel.
Preferably, the cover plate 4 is detachably connected with the lower die 1 through screws; the upper die 2 is detachably connected with the lower die 1 through screws.
As shown in fig. 4 and 6, the upper part of the inner silica gel mold 3 comprises a vertical part 31 and a horizontal part 32 which are connected with the lower part of the inner silica gel mold 3 at one time; the outer wall of the vertical part 31 is correspondingly attached to the inner wall of the upper die 2; the horizontal portion 32 is engaged with the second step 22 and is pressed and fixed by the lid plate 4 so that a seal structure is formed between the upper and lower end surfaces of the horizontal portion 32, the bottom surface of the lid plate 4, and the bottom surface of the second step 22. Through the arrangement, the silica gel inner die 3 can be well fixed.
As shown in fig. 3, an air inlet 41 communicating with the inner cavity of the silica gel inner mold 3 is provided in the cover plate 4, and preferably, the air inlet 41 penetrates from the side surface of the cover plate 4 to the bottom surface of the cover plate 4.
As shown in fig. 6 and 7, a vacuumizing diversion trench 13 surrounding the inner cavity of the lower mold 1 and communicated with an air outlet channel 12 arranged on the lower mold 1 is arranged on the bottom surface of the first step 11; a sealing member 5 is provided between the outer wall of the upper mold 2 and the side wall of the second step 22. Preferably, a third step is arranged on the outer wall of the upper end of the upper die 2; a fourth step corresponding to the third step is arranged on the side wall of the upper end of the first step 11; the seal 5 is provided on the third step and the fourth step. Preferably, the sealing member 5 is a sealing strip, and air leakage between the outer wall of the upper mold 2 and the side wall of the second step 22 can be prevented by providing the sealing member 5. The air outlet channel 12 is used for connecting an air extractor, and the air between the silica gel inner mold 3 and the carbon fiber cloth 100 and the air between the carbon fiber cloth 100 and the inner wall of the lower mold 1 can flow to the vacuumizing guide groove 13 through a gap between the bottom surface of the upper mold 2 and the bottom surface of the first step 11 by arranging the air outlet channel 12 and the vacuumizing guide groove 13 which are communicated with each other, and finally, the air is discharged from the air outlet channel 13; meanwhile, the redundant resin generated by extrusion of the carbon fiber cloth 100 in the forming process can flow to the vacuumizing diversion trench 14 through the gap between the bottom surface of the upper die 2 and the bottom surface of the first step 11 and is discharged from the air outlet channel 12, so that the carbon fiber cloth 100 is better attached to the lower die 1, the upper die 2 and the silica gel inner die 3, and the inner and outer wall surfaces of the box body formed by the carbon fiber cloth 100 are smoother.
As shown in fig. 6 and 7, a flow guide hole 14 is formed on the bottom surface of the first step 11 and is respectively communicated with the vacuuming flow guide groove 13 and the air outlet channel 12; the diameter of the diversion hole 14 is larger than the diameter of the vacuumizing diversion trench 13 and the diameter of the air outlet channel 12. The air and the excess resin can be more smoothly flowed by providing the guide holes 14.
As shown in fig. 4 and 9, a groove 23 surrounding the opening 21 is provided on the bottom surface of the inside of the upper mold 2. The groove 23 is arranged to form a circle of arc-shaped protrusion 102 shown in fig. 10 on the carbon fiber box body formed by the carbon fiber cloth 100.
As shown in fig. 7 to 10, two first protrusions 15 are protruded on one side of the inner wall of the lower mold 1 in left-right symmetry; two second lugs 24 are projected on the bottom of the upper die 2 at the side corresponding to the first lugs 15 in a left-right symmetrical manner; the first step 11 is provided with a corresponding mounting location 16 for inserting the second projection 24. The first bulge 15 and the second bulge 24 are arranged, so that the carbon fiber box body formed by the carbon fiber cloth 100 is formed into a caster mounting position 103 shown in fig. 10.
As shown in fig. 7 and 10, a third projection 17 is provided on the side of the inner wall of the lower mold 1 opposite to the first projection 15. The third protrusion 17 is arranged to form a pull rod mounting position 104 as shown in fig. 10 on the carbon fiber box body formed by molding the carbon fiber cloth 100.
As shown in fig. 8 and 9, the opening 21 of the upper die 2 is integrally close to the side of the upper die 2 remote from the second projection 24.
A forming method of a carbon fiber box body adopts the carbon fiber forming die, and comprises the following steps:
(1) firstly, an upper die 2 is installed in a lower die 1, and a sealing piece 5 is arranged at the joint of the side wall of the upper die 2 and the lower die 1;
(2) cutting the carbon fiber cloth 100 according to the shape and size of the carbon fiber box body to be manufactured, and then correspondingly laying a plurality of layers of carbon fiber cloth 100 in the lower die 1, in this embodiment, two layers are laid, so that the carbon fiber cloth 100 is attached to the inner wall of the lower die 1 and the upper end of the carbon fiber cloth 100 is attached to the bottom surface of the inner side of the upper die 2 to form an inward bending part 101, as can be seen from fig. 4 and 6, the port of the inward bending part 101 is vertically aligned with the inner wall of the upper die 1; specifically, a new layer of carbon fiber cloth 100 can be cut according to the shape and size of the first protrusion 15, the second protrusion 24 and the third protrusion 17, the cut carbon fiber cloth 100 is correspondingly laid in the first protrusion 15, the second protrusion 24 and the third protrusion 17 to complete the laying of the new layer of carbon fiber cloth 100, and the new layer of carbon fiber cloth 100 is attached to the corresponding position, and the rigidity of the carbon fiber box body corresponding to the positions of the first protrusion 15, the second protrusion 24 and the third protrusion 17 can be enhanced through the step, so that the carbon fiber box body is firmer and more durable;
(3) correspondingly installing the silica gel inner die 3 on the carbon fiber cloth 100, correspondingly attaching the carbon fiber cloth 100 to the lower part of the silica gel inner die 3, and correspondingly clamping the upper part of the silica gel inner die 3 in the second step 22 of the upper die 2; referring to fig. 4, the outer wall of the vertical portion 31 in the inner silica gel mold 3 is attached to the port of the inner bending portion 101, so that burrs generated during the molding process of the port can be reduced;
(4) mounting the cover plate 4 on the lower die 1, so that the cover plate 4 presses the upper part of the silica gel inner die 3;
(5) a certain amount of compressed air is introduced into the air inlet 41 in the cover plate 4, so that the silica gel inner mold 3 continuously tends to expand outwards, the carbon fiber cloth 100 is tightly attached to the inner walls of the silica gel inner mold 3 and the carbon fiber cloth 100, and the carbon fiber box body formed by the carbon fiber cloth 100 is prevented from deforming;
(6) the air outlet channel 12 is connected with an air extractor for extracting air so as to enable the inner wall and the outer wall of the carbon fiber cloth 100 to be respectively in vacuum with the contact positions of the lower die 1, the upper die 2 and the silica gel inner die 3; however, the air exhaust time of the air exhaust device is not easy to be too long, otherwise the integrity of the carbon fiber box body is easily damaged.
(7) Heating the forming die, wherein the forming die is generally heated at 170-180 ℃ for 65 minutes to fix and form the carbon fiber cloth 100;
(8) closing the heating device and cooling the forming die;
(9) and (3) obtaining the carbon fiber box body shown in the figure 10 after demoulding, wherein the carbon fiber box body is only provided with an opening on the upper end surface, the area of the opening is smaller than that of the upper end surface, and the two sides of the carbon fiber box body are respectively provided with a caster wheel mounting position 103 and a pull rod mounting position 104.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a forming die of carbon fiber box which characterized in that:
comprises a lower die, an upper die, a silica gel inner die and a cover plate; an inner cavity which is used for laying carbon fiber cloth and is provided with an opening at the upper end is arranged in the middle of the lower die, and a first step surrounding the inner cavity of the lower die is arranged on the inner wall of the upper end of the lower die; an opening is formed in the middle of the upper die, the upper die is detachably mounted in the first step, the inner side of the upper die extends inwards out of the inner wall of the lower die so that the bottom surface of the inner side of the upper die can be attached to the outer wall of the inward-bent part at the upper end of the carbon fiber cloth, and a second step surrounding the opening is formed in the inner wall at the upper end of the upper die; the silica gel inner die is provided with an inner cavity and an opening at the upper end, the silica gel inner die is arranged in the opening of the upper die, the outer wall of the lower part of the silica gel inner die is matched and attached to the inner wall of the carbon fiber cloth, the upper part of the silica gel inner die is correspondingly clamped in the second step, and the silica gel inner die can enable the outer wall of the lower part of the silica gel inner die to be tightly attached to the inner wall of the carbon fiber cloth through inflation and expansion; the cover plate is fixed above the lower die and used for compressing and fixing the upper die and the upper part of the silica gel inner die, so that a sealing structure is formed between the upper part of the silica gel inner die and the bottom surface of the cover plate and the bottom surface of the second step.
2. The forming die of the carbon fiber box body as claimed in claim 1, wherein:
the upper part of the silica gel inner mold comprises a vertical part and a horizontal part which are sequentially connected with the lower part of the silica gel inner mold; the outer wall of the vertical part is correspondingly attached to the inner wall of the upper die; the horizontal portion is clamped in the second step and is pressed and fixed by the cover plate, so that a sealing structure is formed between the upper end surface and the lower end surface of the horizontal portion, the bottom surface of the cover plate and the bottom surface of the second step.
3. The forming die of the carbon fiber box body as claimed in claim 1, wherein:
and an air inlet channel communicated with the inner cavity of the silica gel inner die is arranged in the cover plate.
4. The forming die of the carbon fiber box body as claimed in claim 1, wherein:
a vacuumizing diversion trench which surrounds the inner cavity of the lower die and is communicated with an air outlet channel arranged on the lower die is arranged on the bottom surface of the first step; and a sealing element is arranged between the outer wall of the upper die and the side wall of the first step.
5. The forming die of the carbon fiber box body of claim 4, wherein:
a third step is arranged on the outer wall of the upper end of the upper die; a fourth step corresponding to the third step is arranged on the side wall of the upper end of the first step; the seal is disposed on the third step and the fourth step.
6. The forming die of the carbon fiber box body of claim 4, wherein:
a flow guide hole which is respectively communicated with the vacuumizing flow guide groove and the air outlet channel is arranged on the bottom surface of the first step; the diameter of the flow guide hole is larger than the width of the vacuumizing flow guide groove and the diameter of the air outlet channel.
7. The forming die of the carbon fiber box body as claimed in claim 1, wherein:
and a groove surrounding the opening is arranged on the bottom surface of the inner side of the upper die.
8. The forming die of the carbon fiber box body as claimed in claim 1, wherein:
two first lugs are symmetrically projected at one side of the inner wall of the lower die left and right; two second lugs are symmetrically protruded from the bottom of the upper die on the side corresponding to the first lug; and the first step is provided with a corresponding mounting position for inserting the second bump.
9. The forming die of the carbon fiber box body as claimed in claim 8, wherein:
and a third bump is arranged on the side, opposite to the first bump, of the inner wall of the lower die.
10. A forming method of a carbon fiber box body is characterized by comprising the following steps: the forming die for the carbon fiber box body of claims 1-9, comprising the steps of:
(1) firstly, the upper die is installed in the lower die, and the sealing element is arranged at the connecting position of the side wall of the upper die and the lower die;
(2) cutting carbon fiber cloth according to the shape and size of the carbon fiber box body to be manufactured, and then correspondingly laying a plurality of layers of the cut carbon fiber cloth in the lower die, so that the carbon fiber cloth is attached to the inner wall of the lower die, and the upper end of the carbon fiber cloth is attached to the bottom surface of the inner side of the upper die to form an inward bending part;
(3) correspondingly installing the silica gel inner die on the carbon fiber cloth, correspondingly attaching the carbon fiber cloth to the lower part of the silica gel inner die, and correspondingly clamping the upper part of the silica gel inner die in a second step of the upper die;
(4) the cover plate is arranged on the lower die, so that the cover plate presses the upper part of the silica gel inner die;
(5) a certain amount of compressed air is introduced into the air inlet channel in the cover plate, so that the silica gel inner mold continuously tends to expand outwards, and the silica gel inner mold is tightly attached to the inner wall of the carbon fiber cloth;
(6) the air outlet channel is connected with an air extractor for air extraction, so that vacuum is formed at the contact positions of the inner wall and the outer wall of the carbon fiber cloth and the lower die, the upper die and the silica gel inner die respectively;
(7) heating the forming die to solidify and form the carbon fiber cloth;
(8) closing the heating device and cooling the forming die;
(9) and demolding to obtain the carbon fiber box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911137237.3A CN110936524A (en) | 2019-11-19 | 2019-11-19 | Forming die and method for carbon fiber box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911137237.3A CN110936524A (en) | 2019-11-19 | 2019-11-19 | Forming die and method for carbon fiber box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110936524A true CN110936524A (en) | 2020-03-31 |
Family
ID=69906838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911137237.3A Pending CN110936524A (en) | 2019-11-19 | 2019-11-19 | Forming die and method for carbon fiber box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110936524A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100685682B1 (en) * | 2006-01-09 | 2007-02-26 | 주식회사 대구프라스틱 | A mold opening device for injection mold |
| CN104416915A (en) * | 2013-09-05 | 2015-03-18 | 比亚迪股份有限公司 | Device and method for making shell |
| CN107458015A (en) * | 2017-09-07 | 2017-12-12 | 上海润米科技有限公司 | The processing method of vacuum high-temperature high-pressure molding case shell in a kind of thermoplastic composite die cavity |
| CN109203511A (en) * | 2018-10-09 | 2019-01-15 | 合肥华林精工科技有限公司 | Aerospace carbon fibre composite cabinet shaping mould and its shaping box body technology |
| CN109291467A (en) * | 2018-10-31 | 2019-02-01 | 重庆市凯拉米新材料科技有限公司 | A kind of carbon fiber thermal thermoset material luggage case hot pressing air bag moulding process |
-
2019
- 2019-11-19 CN CN201911137237.3A patent/CN110936524A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100685682B1 (en) * | 2006-01-09 | 2007-02-26 | 주식회사 대구프라스틱 | A mold opening device for injection mold |
| CN104416915A (en) * | 2013-09-05 | 2015-03-18 | 比亚迪股份有限公司 | Device and method for making shell |
| CN107458015A (en) * | 2017-09-07 | 2017-12-12 | 上海润米科技有限公司 | The processing method of vacuum high-temperature high-pressure molding case shell in a kind of thermoplastic composite die cavity |
| CN109203511A (en) * | 2018-10-09 | 2019-01-15 | 合肥华林精工科技有限公司 | Aerospace carbon fibre composite cabinet shaping mould and its shaping box body technology |
| CN109291467A (en) * | 2018-10-31 | 2019-02-01 | 重庆市凯拉米新材料科技有限公司 | A kind of carbon fiber thermal thermoset material luggage case hot pressing air bag moulding process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209466584U (en) | A kind of high sealing refrigerator pallet processing mold | |
| CN110936524A (en) | Forming die and method for carbon fiber box | |
| CN101918190A (en) | Mould system for making a partition in a cardboard-based container | |
| CN107932838B (en) | Disposable forming heel and forming die thereof | |
| CN206579087U (en) | Zipper forming mould and slide fastener | |
| CN110900903B (en) | Forming die capable of reducing burrs at opening during carbon fiber box forming | |
| CN219095720U (en) | Insert injection mold and plastic product | |
| CN106697643B (en) | A kind of cargo support device foot pad and its manufacturing method | |
| US20070023965A1 (en) | Staged compression molding process | |
| CN218614957U (en) | Split type mould | |
| CN211993982U (en) | Anti-overflow device of router shell production mould | |
| CN218640184U (en) | Air inlet and outlet device for preventing vacuum sticking of injection molding product | |
| CN101274474B (en) | Refrigerating container evaporator box and method and equipment for producing the same | |
| CN215434763U (en) | Cooling mechanism for bottle cap mold | |
| CN221089873U (en) | Plastic part injection molding device | |
| CN212888496U (en) | Carbon fiber composite material product forming die | |
| CN216373038U (en) | Practice thrift EPP foaming die of steam | |
| CN220242274U (en) | Core pulling structure of injection mold of air conditioner middle partition plate | |
| CN212147357U (en) | Mould structure of rubber tube integrated into one piece coupling | |
| CN211541996U (en) | Forming die capable of reducing burrs at opening during forming of carbon fiber box | |
| CN221249899U (en) | Forming die for fiber composite material | |
| CN214820474U (en) | Engine air filter box mould | |
| CN208730350U (en) | A kind of thin-walled multi-cavity plastics sucking moulding mold | |
| CN220826231U (en) | Foaming spacer and foaming mold comprising same | |
| CN217454747U (en) | Side angle die structure capable of reducing assembly clearance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200331 |
|
| RJ01 | Rejection of invention patent application after publication |