CN110587963A - Elbow die for winding glass fiber reinforced plastic bent pipe and demolding method thereof - Google Patents

Elbow die for winding glass fiber reinforced plastic bent pipe and demolding method thereof Download PDF

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Publication number
CN110587963A
CN110587963A CN201910939664.7A CN201910939664A CN110587963A CN 110587963 A CN110587963 A CN 110587963A CN 201910939664 A CN201910939664 A CN 201910939664A CN 110587963 A CN110587963 A CN 110587963A
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CN
China
Prior art keywords
die
elbow
split
circle
mold
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Pending
Application number
CN201910939664.7A
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Chinese (zh)
Inventor
马伟亚
马洪涛
马成一
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Hebei Rong Rong Frp Equipment Co Ltd
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Hebei Rong Rong Frp Equipment Co Ltd
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Publication date
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Priority to CN201910939664.7A priority Critical patent/CN110587963A/en
Publication of CN110587963A publication Critical patent/CN110587963A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/30Mounting, exchanging or centering
    • B29C33/301Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/30Mounting, exchanging or centering
    • B29C33/305Mounting of moulds or mould support plates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/44Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02Bending or folding
    • B29C53/08Bending or folding of tubes or other profiled members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80Component parts, details or accessories; Auxiliary operations

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The invention discloses an elbow die for winding a glass fiber reinforced plastic elbow and a demoulding method thereof, wherein the elbow die for winding the glass fiber reinforced plastic elbow comprises an elbow die formed by connecting at least two split dies, all the split dies can be spliced into a circle, and the diameters of the circles spliced on the sections perpendicular to the axis of the elbow die are the same; the arc lengths of the at least two split dies on the top surface circle of the elbow die are different, and the arc lengths of the at least two split dies on the bottom surface circle of the elbow die are also different; the demolding method of the elbow mold for winding the glass fiber reinforced plastic elbow comprises the following steps of: s1, detaching the connecting pieces from all split molds; s2, taking out the split mold with the largest arc length on the top surface circle of the elbow mold from one side of the top surface circle of the elbow mold; taking out the split mold with the largest arc length on the bottom circle of the elbow mold from one side of the bottom circle of the elbow mold. The invention is easy to take the elbow die out of the winding formed glass fiber reinforced plastic elbow. The invention is suitable for winding the glass fiber reinforced plastic bent pipe.

Description

Elbow die for winding glass fiber reinforced plastic bent pipe and demolding method thereof
Technical Field
The invention belongs to the technical field of elbow molds, relates to winding of glass fiber reinforced plastic elbows, and particularly relates to an elbow mold for winding the glass fiber reinforced plastic elbows and a demolding method thereof.
Background
At present, an elbow mould is usually needed to be used when a glass fiber reinforced plastic elbow product is manufactured, so that the direction of the glass fiber reinforced plastic pipe is changed to form an elbow with a bending angle. The elbow mould among the prior art is difficult to take out the elbow mould of arranging in the glass steel return bend after the winding shaping of glass steel return bend, not only wastes time and energy, also can influence the shaping quality of glass steel return bend.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide an elbow die for winding a glass fiber reinforced plastic bent pipe and a demoulding method thereof, so as to achieve the aim of easily taking the elbow die out of the glass fiber reinforced plastic bent pipe formed by winding.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the elbow die comprises at least two split dies which are detachably connected and fixed through a connecting piece, all the split dies extending along the arc axis of the elbow die can be spliced into a circle on the section vertical to the axis of the elbow die, and the diameters of the circles spliced on each section vertical to the axis of the elbow die are the same;
the arc lengths of the at least two split dies on the top surface circle of the elbow die are different, and the arc lengths of the at least two split dies on the bottom surface circle of the elbow die are also different.
As a limitation of the invention, at least one split die is positioned on the top circle of the elbow die, the sectional area of the split die is larger than that of the split die on the bottom circle of the elbow die, and at least one split die is positioned on the bottom circle of the elbow die, the sectional area of the split die is larger than that of the split die on the top circle of the elbow die.
As the limitation of the invention, when the elbow die is formed by splicing two split dies, each split die is a semi-bent column with an arched section and extends along the axis parallel to the elbow die; the arc-shaped cross section area of the first split die on the top circle of the elbow die is A1, the arc-shaped cross section area of the second split die on the top circle of the elbow die is B1, the arc-shaped cross section area of the first split die on the bottom circle of the elbow die is A2, the arc-shaped cross section area of the second split die on the bottom circle of the elbow die is B2, A2= B1, B2= A1, A1+ B1= A2+ B2.
As another limitation of the invention, when the elbow die is formed by splicing at least three split dies, each split die is a fan-shaped bent column with a fan-shaped section and extends along the axis parallel to the elbow die; when the three split dies are spliced, the sectional area of a sector of the third split die on the top face circle of the elbow die is a1, the sectional area of a sector of the fourth split die on the top face circle of the elbow die is b1, the sectional area of a sector of the fifth split die on the top face circle of the elbow die is c1, the sectional area of a sector of the third split die on the bottom face circle of the elbow die is a2, the sectional area of a sector of the fourth split die on the bottom face circle of the elbow die is b2, and the sectional area of a sector of the fifth split die on the bottom face circle of the elbow die is c2, so that a1= b2= c2, b1= c1= a2 and a1+ b1+ c1= a2+ b2+ c2 are satisfied.
As a third limitation of the present invention, the connecting member is a cover plate detachably connected to the elbow die, and the connecting member is any one of the following arrangements:
(1) the first cover plate is detachably connected to the top plane of each split die;
(2) the second cover plate is detachably connected to the bottom plane of each split die;
(3) the first cover plate can be detachably connected to the top plane of each split die, and the second cover plate can be detachably connected to the bottom plane of each split die.
As a further limitation of the invention, a hand-held lever is fixedly connected to the cover plate.
As other limitation of the invention, the cover plate is detachably connected with the split dies through bolts.
Due to the adoption of the technical scheme, compared with the prior art, the elbow die for winding the glass fiber reinforced plastic elbow has the beneficial effects that:
(1) according to the invention, by arranging the split molds, compared with a mode that the elbow molds are directly taken out integrally without arranging the split molds, the contact area between the split molds and the glass fiber reinforced plastic bent pipe can be reduced during mold taking, so that the mold taking friction force is reduced, and the split molds can be taken out from the glass fiber reinforced plastic bent pipe formed by winding in sequence easily during mold taking.
(2) The split dies are arranged on the periphery of the top surface circle or the bottom surface circle of the elbow die, so that the arc lengths of the split dies are different, and all the split dies can be smoothly taken out of the glass fiber reinforced plastic elbow.
(3) The split dies are arranged on the top surface circle of the elbow die, the sectional area of the split dies is different from that of the bottom surface circle, so that the split dies have die drawing inclination, and the split dies are easy to take out.
(4) According to the invention, the split dies can be fixed to form the elbow die by arranging the connecting piece; and through setting up the apron, easily with being connected of split mould, convenient to use.
The invention also provides a demoulding method of the elbow mould for winding the glass fiber reinforced plastic elbow, which is realized by utilizing the elbow mould for winding the glass fiber reinforced plastic elbow, and the technical scheme is as follows: the method comprises the following steps:
s1, detaching the connecting pieces from all split molds;
s2, taking out the split mold with the largest arc length on the top surface circle of the elbow mold from one side of the top surface circle of the elbow mold; taking out the split mold with the largest arc length on the bottom circle of the elbow mold from one side of the bottom circle of the elbow mold; and taking out the rest split dies from the winding formed glass fiber reinforced plastic bent pipe.
S1, detaching a first cover plate and a second cover plate from all split dies;
s2, taking out the split mold with the largest cross section area on the top circle of the elbow mold from one side of the top circle of the elbow mold; taking out the split mold with the largest cross section area on the bottom circle of the elbow mold from one side of the bottom circle of the elbow mold; and taking out the rest split dies from the winding formed glass fiber reinforced plastic bent pipe.
As a further limitation of the invention, S1, detaching the first cover plate and the second cover plate from all split dies;
s2, carrying out polymerization contact on split dies spaced by the reserved seams;
s3, taking out the split mold with the largest cross section area on the top circle of the elbow mold from one side of the top circle of the elbow mold; taking out the split mold with the largest cross section area on the bottom circle of the elbow mold from one side of the bottom circle of the elbow mold; and taking out the rest split dies from the winding formed glass fiber reinforced plastic bent pipe.
Due to the adoption of the technical scheme, compared with the prior art, the demolding method of the elbow die for winding the glass fiber reinforced plastic elbow has the following beneficial effects:
according to the invention, the split dies are in polymerization contact, so that the peripheral perimeter of the elbow die formed when the reserved seam exists between the split dies is reduced, and the split dies are easy to take out from a formed glass fiber reinforced plastic bent pipe product;
the split dies with the largest sectional area or the largest arc length are taken out preferentially from the side of the top surface circle of the elbow die and the side of the bottom surface circle of the elbow die, so that the rest split dies can be taken out from the glass fiber reinforced plastic bent pipe smoothly.
In conclusion, the invention has the advantages of convenient operation, easy demoulding and strong practicability.
The invention is suitable for winding the glass fiber reinforced plastic bent pipe.
Drawings
The invention is described in further detail below with reference to the figures and the embodiments.
FIG. 1 is a schematic structural view of example 1 of the present invention;
fig. 2 is a schematic perspective view of an elbow die of embodiment 1 of the present invention in a three-dimensional structure when two split dies are used;
fig. 3 is a schematic perspective view of an elbow die of embodiment 1 of the present invention in a three-piece die configuration;
FIG. 4 is a schematic top view of an elbow die of example 1 of the present invention using two split dies;
FIG. 5 is a schematic view of the bottom circle of an elbow die when two split dies are used in example 1 of the present invention;
FIG. 6 is a schematic top view of an elbow die of example 1 of the present invention using three split dies;
fig. 7 is a schematic view of a bottom circle of an elbow die when three split dies are used in example 1 of the present invention.
In the figure: 1. splitting the mold; 11. a first split mold; 12. a second split mold; 13. a third split mold; 14. a fourth split mold; 15. a fifth phantom; 2. a first cover plate; 3. a second cover plate; 4. a hand-held wand; 5. and reserving the seam.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the description of the preferred embodiment is only for purposes of illustration and understanding, and is not intended to limit the invention.
Embodiment 1 elbow mould for winding glass fiber reinforced plastic elbow
In the embodiment, the draft angle and the section arc length of each split die 1 are combined, so that all the split dies 1 can be taken out from the glass fiber reinforced plastic bent pipe easily and smoothly. As shown in fig. 1 to 3, the present embodiment includes a bending die and a connecting member.
Elbow mould
The elbow die is a bending die for winding the glass steel tube, the elbow die is in an elbow shape with a bending angle, the axis of the elbow die is an arc line, the planes of the elbow die perpendicular to the axis are all circular with the same diameter, namely, the top plane of the elbow die perpendicular to the axis is circular (namely, the top circle of the elbow die), the bottom plane of the elbow die perpendicular to the axis is also circular (namely, the bottom circle of the elbow die), and the diameter of the top circle of the elbow die is the same as that of the bottom circle of the elbow die. The elbow die is formed by splicing at least two split dies 1.
Split mould 1
Each split die 1 extends along the arc axis of the elbow die, the cross sections of all the split dies 1, which are perpendicular to the axis of the elbow die, can be spliced into a circle, and the diameters of the circles spliced on each cross section perpendicular to the axis of the elbow die are the same, namely, the planes perpendicular to the axis on the formed elbow die are all circles with the same diameter. The conditions that the arc lengths of the at least two split dies 1 on the top surface circle of the elbow die are different and the arc lengths on the bottom surface circle of the elbow die are different are also met. In short, the bending die is divided into a plurality of split dies 1 along the axis of the bending die from the circular top plane to the circular bottom plane.
Furthermore, in order to facilitate mold taking, the sectional area of at least one split mold 1 on the top circle of the elbow mold is larger than the sectional area of the split mold 1 on the bottom circle of the elbow mold, and the sectional area of at least one split mold 1 on the bottom circle of the elbow mold is larger than the sectional area of the split mold 1 on the top circle of the elbow mold. Thus, each split mold 1 has a draft angle, and the split mold 1 can be easily taken out. For example:
referring to fig. 2, when the elbow die is formed by splicing two split dies 1, each split die 1 is a half-bent column having an arcuate cross section and extending parallel to the axis of the elbow die. The arc lengths of the two split dies 1 on the top surface circle of the elbow die are different, and the arc lengths of the two split dies 1 on the bottom surface circle of the elbow die are different. Moreover, the arcuate cross-sectional area of the first split die 11 on the top circle of the elbow die (i.e. the top area of the first split die 11) is a1, and a1 is greater than half of the top circle area of the elbow die; the arcuate cross-sectional area of the second split die 12 on the top circle of the elbow die (i.e., the area of the top surface of the second split die 12) is B1, and B1 is less than half of the area of the top circle of the elbow die. The arcuate cross-sectional area of the first split die 11 on the bottom circle of the elbow die (i.e., the area of the bottom surface of the first split die 11) is a2 and a2= B1, and the arcuate cross-sectional area of the second split die 12 on the bottom circle of the elbow die (i.e., the area of the bottom surface of the second split die 12) is B2 and B2= a1, a1+ B1= a2+ B2.
Referring to fig. 3, when the elbow die is formed by splicing three split dies 1, each split die 1 is a fan-shaped bent column having a cross section perpendicular to the axis of the split die and extending in parallel to the axis of the elbow die. Moreover, the sectional area of the sector of the third split die 13 on the top circle of the elbow die (i.e. the area of the top of the third split die 13) is a1, and a1 is greater than one third of the area of the top circle of the elbow die; the sectional area of the sector of the fourth split die 14 on the top circle of the elbow die (i.e. the area of the top surface of the fourth split die 14) is b1, and the sectional area of the sector of the fifth split die 15 on the top circle of the elbow die (i.e. the area of the top surface of the fifth split die 15) is c 1. The sectional area of the sector of the third split die 13 on the bottom circle of the elbow die (i.e. the area of the bottom of the third split die 13) is a2, the sectional area of the sector of the fourth split die 14 on the bottom circle of the elbow die (i.e. the area of the bottom of the fourth split die 14) is b2, the sectional area of the sector of the fifth split die 15 on the bottom circle of the elbow die (i.e. the area of the bottom of the fifth split die 15) is c2, and a1= b2= c2, b1= c1= a2, a1+ b1+ c1= a2+ b2+ c 2.
Connecting piece
The connecting piece is used for fixing the split dies 1 to form the elbow die. The connecting piece is a cover plate, and the cover plate is detachably connected to the elbow die. The cover plate is arranged in any one of the following modes:
(1) the first cover plate 2 is detachably connected to the top plane of each split mold 1.
(2) The second cover plate 3 is detachably connected to the bottom plane of each split mold 1.
(3) The first cover plate 2 is detachably connected to the top plane of each split die 1, and the second cover plate 3 is detachably connected to the bottom plane of each split die 1.
The detachable connection is bolt connection, so that the cover plate and the split die 1 are easy to install. The cover plate is fixedly connected with a handheld rod 4, so that the cover plate is convenient for an operator to hold.
When the elbow mold for winding the glass fiber reinforced plastic elbow pipe is assembled by using the present embodiment, all the split molds 1 are fixed by the cover plate to form the elbow mold. In order to facilitate the mould taking, a reserved seam 5 with the thickness of 0.5mm can be reserved between the split moulds 1 for forming the elbow mould; of course, the reserved seam 5 may not be left.
The demolding procedure of this example is shown in example 2.
Embodiment 2 demolding method of elbow mold for winding glass fiber reinforced plastic bent pipe
The embodiment is implemented by using the elbow die for winding the glass fiber reinforced plastic elbow in embodiment 1, and comprises the following steps:
s1, the first cover plate 2 is detached from the top planes of all the split dies 1, and the second cover plate 3 is detached from the bottom planes of all the split dies 1.
S2, polymerizing and contacting the split dies 1 which are spaced by the reserved seams to enable the perimeter of the elbow die to be smaller than that of the glass fiber reinforced plastic elbow.
S3, taking out the split die 1 with the largest arc length on the top surface circle of the elbow die from one side of the top surface circle of the elbow die; taking out the split die 1 with the largest arc length on the bottom surface circle of the elbow die from one side of the bottom surface circle of the elbow die; and taking out the rest split dies 1 from the winding formed glass fiber reinforced plastic bent pipe.
When at least one split die 1 is positioned on the top circle of the elbow die, the sectional area of the split die 1 is larger than that of the split die 1 on the bottom circle of the elbow die, and at least one split die 1 is positioned on the bottom circle of the elbow die, the sectional area of the split die 1 is larger than that of the split die 1 on the top circle of the elbow die: taking out the split die 1 with the largest cross section area on the top surface circle of the elbow die from one side of the top surface circle of the elbow die; taking out the split die 1 with the largest cross section area on the bottom circle of the elbow die from one side of the bottom circle of the elbow die; and taking out the rest split dies 1 from the winding formed glass fiber reinforced plastic bent pipe.
For example:
referring to fig. 2, during demoulding, the first split mold 11 is taken out from the winding formed glass fiber reinforced plastic bent pipe from the round side of the top surface of the bending mold; and then taking the second split die 12 out of the winding formed glass fiber reinforced plastic bent pipe from one side of the bottom surface circle of the elbow die.
Referring to fig. 3, when demoulding, the third split die 13 is taken out from the winding formed glass fiber reinforced plastic bent pipe from the round side of the top surface of the bending die; taking the fourth split mold 14 out of the glass fiber reinforced plastic bent pipe formed by winding from one side of the bottom surface circle of the elbow mold; the fifth split mold 15 can be easily taken out from the winding formed glass fiber reinforced plastic bent pipe.
Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a glass steel pipe is elbow mould for winding which characterized in that: the elbow die comprises at least two split dies which are detachably connected and fixed through a connecting piece, all the split dies extending along the arc axis of the elbow die can be spliced into a circle on the section vertical to the axis of the elbow die, and the diameters of the circles spliced on each section vertical to the axis of the elbow die are the same;
the arc lengths of the at least two split dies on the top surface circle of the elbow die are different, and the arc lengths of the at least two split dies on the bottom surface circle of the elbow die are also different.
2. The bending die for winding a glass reinforced plastic pipe according to claim 1, wherein: at least one split die is positioned on the top circle of the elbow die, the sectional area of the split die is larger than that of the split die on the bottom circle of the elbow die, and at least one split die is positioned on the bottom circle of the elbow die, the sectional area of the split die is larger than that of the split die on the top circle of the elbow die.
3. The bending die for winding a glass reinforced plastic pipe according to claim 1 or 2, wherein: when the elbow die is formed by splicing two split dies, each split die is a semi-bent column with an arched section and extending along the axis parallel to the elbow die; the arc-shaped cross section area of the first split die on the top circle of the elbow die is A1, the arc-shaped cross section area of the second split die on the top circle of the elbow die is B1, the arc-shaped cross section area of the first split die on the bottom circle of the elbow die is A2, the arc-shaped cross section area of the second split die on the bottom circle of the elbow die is B2, A2= B1, B2= A1, A1+ B1= A2+ B2.
4. The bending die for winding a glass reinforced plastic pipe according to claim 1 or 2, wherein: when the elbow die is formed by splicing at least three split dies, each split die is a fan-shaped bent column with a fan-shaped section and extends along the axis parallel to the elbow die; when the three split dies are spliced, the sectional area of a sector of the third split die on the top face circle of the elbow die is a1, the sectional area of a sector of the fourth split die on the top face circle of the elbow die is b1, the sectional area of a sector of the fifth split die on the top face circle of the elbow die is c1, the sectional area of a sector of the third split die on the bottom face circle of the elbow die is a2, the sectional area of a sector of the fourth split die on the bottom face circle of the elbow die is b2, and the sectional area of a sector of the fifth split die on the bottom face circle of the elbow die is c2, so that a1= b2= c2, b1= c1= a2 and a1+ b1+ c1= a2+ b2+ c2 are satisfied.
5. The bending die for winding a glass reinforced plastic pipe according to claim 1 or 2, wherein: the connecting piece is for dismantling the apron of connecting on the elbow mould, and the connecting piece is following arbitrary setting mode:
(1) the first cover plate is detachably connected to the top plane of each split die;
(2) the second cover plate is detachably connected to the bottom plane of each split die;
(3) the first cover plate can be detachably connected to the top plane of each split die, and the second cover plate can be detachably connected to the bottom plane of each split die.
6. The bending die for winding a glass fiber reinforced plastic pipe according to claim 5, wherein: the cover plate is fixedly connected with a handheld rod.
7. The bending die for winding a glass fiber reinforced plastic pipe according to claim 5, wherein: the cover plate is detachably connected with the split dies through bolts.
8. A demoulding method of an elbow mould for winding a glass reinforced plastic pipe is characterized in that: the winding of the glass fiber reinforced plastic pipe is realized by using the elbow mold for winding glass fiber reinforced plastic pipe as claimed in any one of claims 1 to 7, and comprises the following steps:
s1, detaching the connecting pieces from all split molds;
s2, taking out the split mold with the largest arc length on the top surface circle of the elbow mold from one side of the top surface circle of the elbow mold; taking out the split mold with the largest arc length on the bottom circle of the elbow mold from one side of the bottom circle of the elbow mold; and taking out the rest split dies from the winding formed glass fiber reinforced plastic bent pipe.
9. The method for releasing a bending die for winding a glass reinforced plastic pipe according to claim 8, wherein:
s1, detaching a first cover plate and a second cover plate from all split dies;
s2, taking out the split mold with the largest cross section area on the top circle of the elbow mold from one side of the top circle of the elbow mold; taking out the split mold with the largest cross section area on the bottom circle of the elbow mold from one side of the bottom circle of the elbow mold; and taking out the rest split dies from the winding formed glass fiber reinforced plastic bent pipe.
10. The method for releasing a bending die for winding a glass reinforced plastic pipe according to claim 9, wherein:
s1, detaching a first cover plate and a second cover plate from all split dies;
s2, carrying out polymerization contact on split dies spaced by the reserved seams;
s3, taking out the split mold with the largest cross section area on the top circle of the elbow mold from one side of the top circle of the elbow mold; taking out the split mold with the largest cross section area on the bottom circle of the elbow mold from one side of the bottom circle of the elbow mold; and taking out the rest split dies from the winding formed glass fiber reinforced plastic bent pipe.
CN201910939664.7A 2019-09-30 2019-09-30 Elbow die for winding glass fiber reinforced plastic bent pipe and demolding method thereof Pending CN110587963A (en)

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Application Number Priority Date Filing Date Title
CN201910939664.7A CN110587963A (en) 2019-09-30 2019-09-30 Elbow die for winding glass fiber reinforced plastic bent pipe and demolding method thereof

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Application Number Priority Date Filing Date Title
CN201910939664.7A CN110587963A (en) 2019-09-30 2019-09-30 Elbow die for winding glass fiber reinforced plastic bent pipe and demolding method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112060421A (en) * 2020-09-30 2020-12-11 哈工大机器人湖州国际创新研究院 Mould for forming thermoplastic composite material core mould

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