Composite material anchor rod production line, composite material anchor rod and forming method
Through mold curing and forming technology in composite anchor production line, the problems of intimate fiber bonding and high energy consumption in the existing technology are solved, the fiber volume content and mechanical properties are improved, production costs and pollution are reduced, and efficient Anchor production.
Patent Information
- Application Number
- CN202411544181.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2024-12-20
AI Technical Summary
When existing composite anchors are cured and molded in the oven, the fiber bonding is not tight, the fiber volume content is low, the mechanical properties are poor, the oven energy consumption is large, the pollution is serious, and the production cost is high.
The composite anchor production line is adopted, including preform processing units, braided yarn knitting units, thread production units and mold curing and forming units. The mold is efficiently cured and molded, which improves the fiber volume content and mechanical properties, and reduces energy consumption and production costs.
The fiber content and mechanical properties of composite anchors are improved, energy consumption and production costs are reduced, flue gas pollution is avoided, and a tighter fiber bonding and efficient curing process is achieved.
Smart Images
Figure CN119159851A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of composite material forming, and in particular relates to a composite material anchor rod production line, a composite material anchor rod and a forming method. Background Art
[0002] In the prior art, composite anchor rods are cured and formed in an oven. The fibers are completely tied by spirals of nylon wire, metal belts, etc. The fibers are not tightly bound, especially the protruding parts are not bundled, and the fibers are even less tightly bound. Therefore, the fiber volume content of this composite anchor rod is low (≤65%), and it is difficult to achieve a volume content of more than 70%, and the mechanical properties are generally low. The anchor rod is cured and formed in an oven, and 5-6 sections of the oven (1 meter / section) are required to meet the curing and forming of the anchor rod; the energy consumption is large. The oven used for anchor rod curing is semi-enclosed, and the heat loss is large, which increases the energy consumption. The anchor rod is cured in a semi-enclosed oven, and the curing temperature is high (160-340℃), resulting in serious smoke; direct emissions pollute the environment, and if activated carbon adsorption is used, the production cost will increase. Summary of the invention
[0003] In order to solve the deficiencies in the prior art, the present invention provides a composite anchor production line, a composite anchor and a forming method. The fibers of the composite anchor are more tightly bonded, thereby improving the fiber content and mechanical properties of the composite anchor.
[0004] In order to achieve the above object, the technical solution adopted by the present invention is:
[0005] In a first aspect, a composite anchor production line is provided, comprising: a preform processing unit for making an anchor preform from impregnated yarn; a first intermediate processing unit for weaving braided yarn on the surface of the anchor preform to obtain a first intermediate; a second intermediate processing unit for making threads on the surface of the first intermediate to obtain a second intermediate; and a curing and molding unit for curing and molding the second intermediate through a mold, wherein the second intermediate is cured by the curing and molding unit to obtain a composite anchor having a fiber volume content that meets set conditions.
[0006] Furthermore, the preform processing unit includes: a yarn rack for storing radial fibers; a glue tank for dipping the radial fibers in glue to obtain dipped yarns; and a preforming tool for preforming the dipped yarns into cylindrical anchor rod preforms.
[0007] Furthermore, the first intermediate body processing unit comprises: a braiding machine for braiding braiding yarn on the surface of the anchor rod preform to obtain the first intermediate body; and an injection box for injecting glue into the braiding yarn.
[0008] Furthermore, the second intermediate body processing unit comprises: a winding machine for winding a metal wire or a metal strip around the surface of the first intermediate body to form a thread, thereby obtaining the second intermediate body.
[0009] Furthermore, the second intermediate body processing unit further includes: a stripping cloth unwinding tool for unwinding the stripping cloth; and a wrapper for wrapping the stripping cloth around the surface of the first intermediate body after the threads are formed.
[0010] Furthermore, the curing and molding unit includes: a mold for curing and molding the second intermediate; a plurality of heating blocks for heating the mold; a traction machine for pulling the second intermediate after curing and molding out of the mold, thereby obtaining a composite anchor rod with a fiber volume content that meets set conditions; and an unwinding machine for unwinding the metal wire or metal belt out of the composite anchor rod.
[0011] Furthermore, it also includes a packaging unit, which includes a cutting machine for cutting the composite anchor rod into a set length, or a winding machine for winding the composite anchor rod.
[0012] In a second aspect, a composite anchor rod is provided, wherein the composite anchor rod is produced by using the composite anchor rod production line described in the first aspect.
[0013] In a third aspect, a composite anchor forming method is provided, comprising: preparing an anchor preform; weaving braided yarn on the surface of the anchor preform to obtain a first intermediate; making threads on the surface of the first intermediate to obtain a second intermediate; and curing and forming the second intermediate through a mold to obtain a composite anchor having a fiber volume content that meets set conditions.
[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention obtains a composite anchor rod with a fiber volume content that meets set conditions through a preform processing unit for making impregnated yarn into an anchor rod preform, a first intermediate processing unit for weaving braided yarn on the surface of the anchor rod preform to obtain a first intermediate, a second intermediate processing unit for making threads on the surface of the first intermediate to obtain a second intermediate, and a curing and molding unit for curing and molding the second intermediate through a mold. The fibers of the anchor rod are more tightly bonded, thereby improving the fiber content and mechanical properties of the composite anchor rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the main process of a composite material anchor rod forming method provided in the first embodiment of the present invention;
[0016] Figure 2 This is a schematic diagram of the main process of a composite material anchor rod forming method provided in the second embodiment of the present invention;
[0017] In the figure: 1. yarn rack; 2. glue tank; 3. glue-impregnated yarn; 4. pre-forming tooling; 5. weaving machine; 6. weaving yarn; 7. injection box; 8. winding machine; 9. metal wire; 10. heating block; 11. mold; 12. traction machine; 13. unwinding machine; 15. cutting machine; 16. winding machine; 17. release cloth unwinding tooling; 18. release cloth; 19. wrapper. DETAILED DESCRIPTION
[0018] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.
[0019] Embodiment 1
[0020] like Figure 1 As shown, a composite anchor production line includes a preform processing unit for making a dipped yarn 3 into an anchor preform; a first intermediate processing unit for weaving a braided yarn 6 on the surface of the anchor preform to obtain a first intermediate; a second intermediate processing unit for making threads on the surface of the first intermediate to obtain a second intermediate; and a curing and molding unit for curing and molding the second intermediate through a mold 11, and the second intermediate is cured by the curing and molding unit to obtain a composite anchor with a fiber volume content that meets set conditions.
[0021] The preform processing unit comprises a yarn rack 1 for storing radial fibers; a glue tank 2 for dipping the radial fibers to obtain dipped yarns 3; and a preforming tool 4 for preforming the dipped yarns 3 into cylindrical anchor rod preforms.
[0022] The first intermediate body processing unit comprises a braiding machine 5 for braiding the braiding yarn 6 on the surface of the anchor rod preform to obtain the first intermediate body; and an injection box 7 for injecting glue into the braiding yarn 6 .
[0023] The second intermediate body processing unit comprises a winding machine 8 for winding a metal wire 9 or a metal strip around the surface of the first intermediate body to form a thread, thereby obtaining a second intermediate body.
[0024] The curing and molding unit includes: a mold 11 for curing and molding the second intermediate; a plurality of heating blocks 10 for heating the mold 11; a traction machine 12 for pulling the cured second intermediate out of the mold 11 to obtain a composite anchor rod whose fiber volume content meets the set conditions; and an unwinding machine 13 for unwinding the metal wire 9 or the metal belt out of the composite anchor rod.
[0025] The device further comprises a packaging unit, which comprises a cutting machine 15 for cutting the composite anchor into set lengths, or a winding machine 16 for winding the composite anchor.
[0026] This embodiment also provides a composite anchor forming method, including: making an anchor preform; weaving a braided yarn 6 on the surface of the anchor preform to obtain a first intermediate; making threads on the surface of the first intermediate to obtain a second intermediate; and curing and forming the second intermediate through a mold 11 to obtain a composite anchor whose fiber volume content meets the set conditions.
[0027] (1) Making anchor preform:
[0028] The radial fibers used in the present invention are installed on a yarn frame 1, and the radial fibers are placed in a glue tank 2 for dipping in glue to obtain a dipped yarn 3;
[0029] The impregnated yarn 3 is preformed into a cylindrical anchor rod preform by a preforming tool 4 .
[0030] (2) Weaving the braided yarn 6 on the surface of the anchor rod preform to obtain a first intermediate:
[0031] The braiding yarn 6 is braided on the surface of the anchor rod preform by using a braiding machine 5 to obtain a first intermediate; the braided yarn 6 is injected with glue through an injection box 7 to ensure that the braided yarn is well wetted.
[0032] (3) Making threads on the surface of the first intermediate to obtain a second intermediate:
[0033] The metal wire 9 (the metal wire 9 or the metal belt is selected according to production requirements) is spirally wound on the outer surface of the braided yarn 6 (i.e., the surface of the first intermediate) by a winding machine 8 to form a thread, and a second intermediate is obtained.
[0034] The metal belts and wires used for anchor rod winding are made of metal materials with good thermal conductivity and low hardness, and are surface treated. This can not only ensure the resin curing effect at the thread without causing damage to the mold, but also ensure that they do not stick to the cured resin and can be unwound normally.
[0035] (4) The second intermediate is cured and molded through a mold 11 to obtain a composite anchor having a fiber volume content that meets the set conditions:
[0036] The impregnated yarn 3, the braided yarn 6 and the metal wire 9 (ie, the second intermediate) are fed together into a mold 11 heated by a heating block 10 for curing and molding to obtain a composite anchor rod whose fiber volume content meets the set conditions.
[0037] The composite anchor rod after solidification is pulled out of the mold 11 by the traction machine 12; the metal wire 9 is unwound out of the composite anchor rod by the unwinding machine 13; it is rewound by the rewinding machine 16, or after reaching the required length, it is cut and rewound for packaging by the cutting machine 15. The unwound metal strip and metal wire can be reused, thereby reducing production costs.
[0038] The composite anchor rod of the present invention is extruded by a mold before solidification and solidified in the mold, so the fibers are tightly bonded and the fiber volume content of the composite anchor rod can be ≥70%.
[0039] The length of the mold for curing and forming the composite anchor rod in the present invention is 900-1000 mm, and the heating is divided into three zones. The length of a single zone is 200 mm-220 mm, and the total heating zone length is 600-660 mm. Compared with the anchor rod cured and formed in 5-6 ovens (the length of a single oven is 1000 mm, and the total heating zone length is 5-6 meters), the energy consumption is greatly reduced.
[0040] Compared with anchor rods formed by oven heating and curing (during oven curing and forming, the oven and the anchor rod to be cured are not in direct contact, and the anchor rod to be cured is in direct contact with the hot air in the oven, and the heat transfer efficiency is low, so a higher curing temperature of 200-340°C is required), in the present invention, the anchor rod to be cured is in direct contact with the mold, and the heat transfer efficiency is high; curing can be completed within a lower three-zone curing temperature (150-190°C), and energy consumption is greatly reduced.
[0041] The anchor rods cured in a semi-enclosed oven have a high curing temperature (200-340°C), which results in serious smoke, which is directly discharged and pollutes the environment. If activated carbon adsorption is used, the production cost will increase. In the present invention, the anchor rods are cured in the mold, no smoke is generated, and activated carbon adsorption is not required, which reduces the production cost.
[0042] Embodiment 2
[0043] The main difference between this embodiment and the first embodiment is that the second intermediate body processing unit in this embodiment further includes a release cloth unwinding tool 17 for unwinding the release cloth 18; and a wrapper 19 for wrapping the release cloth 18 on the surface of the first intermediate body after threading.
[0044] like Figure 2 As shown, this embodiment also provides a composite anchor forming method, which is specifically as follows.
[0045] (1) Making anchor preform:
[0046] The radial fibers used in the present invention are installed on a yarn frame 1, and the radial fibers are placed in a glue tank 2 for dipping in glue to obtain a dipped yarn 3;
[0047] The impregnated yarn 3 is preformed into a cylindrical anchor rod preform by a preforming tool 4 .
[0048] (2) Weaving the braided yarn 6 on the surface of the anchor rod preform to obtain a first intermediate:
[0049] The braiding yarn 6 is braided on the surface of the anchor rod preform by using a braiding machine 5 to obtain a first intermediate; the braided yarn 6 is injected with glue through an injection box 7 to ensure that the braided yarn is well wetted.
[0050] (3) Making threads on the surface of the first intermediate to obtain a second intermediate:
[0051] The metal wire 9 (the metal wire 9 or the metal belt is selected according to the production requirements) is spirally wound on the outer surface of the braided yarn 6 (i.e., the surface of the first intermediate body) by a winding machine 8 to form a thread;
[0052] The demoulding cloth unwinding tool 17 unwinds the demoulding cloth 18, and the demoulding cloth 18 is wrapped on the surface of the first intermediate after the thread is made through the wrapping device 19 to obtain the second intermediate.
[0053] The metal belts and wires used for anchor rod winding are made of metal materials with good thermal conductivity and low hardness, and are surface treated. This can not only ensure the resin curing effect at the thread without causing damage to the mold, but also ensure that they do not stick to the cured resin and can be unwound normally.
[0054] (4) The second intermediate is cured and molded through a mold 11 to obtain a composite anchor having a fiber volume content that meets the set conditions:
[0055] The impregnated yarn 3, the braided yarn 6 and the metal wire 9 (ie, the second intermediate) are fed together into a mold 11 heated by a heating block 10 for curing and molding to obtain a composite anchor rod whose fiber volume content meets the set conditions.
[0056] The composite anchor rod after solidification is pulled out of the mold 11 by the traction machine 12; the demoulding cloth 18 is torn off first, and then the metal wire 9 is unwound out of the composite anchor rod by the unwinding machine 13; it is rewound by the rewinding machine 16, or after reaching the required length, it is cut and rewound for packaging by the cutting machine 15. The unwound metal strip and metal wire can be reused, thereby reducing production costs.
[0057] After the release cloth 18 is torn off, rough texture is formed on the surface of the anchor rod, which improves the anchoring effect of the anchor rod when it is used.
[0058] Embodiment 3
[0059] Based on a composite anchor production line and a composite anchor forming method described in Example 1 and Example 2, this embodiment provides a composite anchor, which is manufactured using the composite anchor production line and the composite anchor forming method described in Example 1 or Example 2.
[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A composite anchor production line, characterized in that: include: A preform processing unit for manufacturing the dipped yarn (3) into an anchor rod preform; A first intermediate body processing unit for weaving a braided yarn (6) on the surface of the anchor rod preform to obtain a first intermediate body; A second intermediate body processing unit for making threads on the surface of the first intermediate body to obtain a second intermediate body; A curing and molding unit is used for curing and molding the second intermediate body through a mold (11), wherein the second intermediate body is cured by the curing and molding unit to obtain a composite anchor rod having a fiber volume content that meets a set condition.
2. The composite anchor production line according to claim 1, characterized in that: The preform processing unit comprises: a creel (1) for storing radial fibers; A glue groove (2) for dipping the radial fibers into glue to obtain a dipped yarn (3); A preforming tool (4) for preforming the dipped yarn (3) into a cylindrical anchor rod preform.
3. The composite anchor production line according to claim 1, characterized in that: The first intermediate processing unit comprises: A braiding machine (5) for braiding a braiding yarn (6) on the surface of the anchor rod preform to obtain a first intermediate body; A material injection box (7) is used for injecting glue into the braided yarn (6).
4. The composite anchor production line according to claim 1, characterized in that: The second intermediate body processing unit comprises: a winding machine (8) for winding a metal wire (9) or a metal strip onto the surface of the first intermediate body to form a thread, thereby obtaining the second intermediate body.
5. The composite anchor production line according to claim 4, characterized in that: The second intermediate processing unit further comprises: A stripping cloth unwinding tool (17) for unwinding a stripping cloth (18); A wrapper (19) is used for wrapping a demoulding cloth (18) on the surface of the first intermediate body after the threads are formed.
6. The composite anchor production line according to claim 1, characterized in that: The curing and molding unit comprises: A mold (11) for curing and molding the second intermediate; A plurality of heating blocks (10) for heating the mold (11); A traction machine (12) for pulling the second intermediate product after solidification out of the mold (11), thereby obtaining a composite anchor having a fiber volume content that meets set conditions; An unwinding machine (13) for unwinding a metal wire (9) or a metal strip from a composite anchor.
7. The composite anchor production line according to claim 1, characterized in that: It also comprises a packaging unit, wherein the packaging unit comprises a cutting machine (15) for cutting the composite anchor rod into a set length, or a winding machine (16) for winding the composite anchor rod.
8. A composite anchor rod, characterized in that: The composite anchor rod is produced by using the composite anchor rod production line described in any one of claims 1 to 7.
9. A composite anchor forming method, characterized in that: include: Making anchor bolt preform; Weaving the braided yarn (6) on the surface of the anchor rod preform to obtain a first intermediate; Making threads on the surface of the first intermediate to obtain a second intermediate; The second intermediate is cured and formed by a mold (11) to obtain a composite anchor rod whose fiber volume content meets the set conditions.