Composite material anchor rod production line and composite material anchor rod
The composite anchor rod production line and method through in-mold curing and molding solves the problems of loose bonding between fibers and high energy consumption, and realizes the production of composite anchor rods with high fiber content and low energy consumption.
Patent Information
- Application Number
- CN202422653155.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-31
AI Technical Summary
When existing composite anchor rods are cured and formed in an oven, the fibers are not tightly bonded, the fiber volume content is low, the mechanical properties are insufficient, the energy consumption is high, and the smoke emissions pollute the environment.
The preform processing unit, braiding yarn processing unit, thread making unit and curing molding unit are used to improve the bonding density between fibers, reduce energy consumption and reduce smoke emissions through in-mold curing molding.
The fiber content and mechanical properties of the composite anchor rod are improved, the production energy consumption and cost are reduced, and the smoke pollution is reduced.
Smart Images
Figure CN223420162U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of composite material forming, and particularly relates to a composite material anchor rod production line and a composite material anchor rod. Background Art
[0002] In existing technology, composite anchor rods are cured and formed in an oven. The fibers are completely bound together by spirals of nylon thread, metal strapping, or other materials. This results in loose fiber bonding, especially in the raised areas, where there is no binding, and the bonding is even looser. As a result, the fiber volume content of these composite anchor rods is relatively low (≤65%), and achieving a volume content exceeding 70% is difficult. Mechanical properties are generally poor. Curing the anchor rods in an oven requires 5-6 sections (1 meter per section) to achieve sufficient curing capacity, resulting in high energy consumption. The ovens used for anchor rod curing are semi-enclosed, resulting in high heat loss and increased energy consumption. Curing the anchor rods in a semi-enclosed oven at high temperatures (160-340°C) results in significant fumes, which directly pollute the environment. Using activated carbon for adsorption increases production costs. Utility Model Content
[0003] In order to solve the deficiencies in the prior art, the utility model provides a composite anchor production line and a composite anchor. 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-mentioned purpose, the technical solution adopted by the present utility model is:
[0005] In a first aspect, a composite anchor rod production line is provided, comprising: a preform processing unit for making an anchor rod preform from impregnated yarn; a first intermediate body processing unit for weaving braided yarn 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; and a curing and molding unit for curing and molding the second intermediate body through a mold, 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 set conditions.
[0006] Furthermore, the preform processing unit includes: a yarn rack for storing radial fibers; a glue tank for dipping the radial fibers into 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 includes: 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 includes: a winding machine for winding a metal wire or a metal strip onto 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 threading.
[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 the set conditions; and an unwinding machine for unwinding the metal wire or metal strip 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] According to a third aspect, a composite anchor rod forming method is provided, comprising: preparing an anchor rod preform; weaving braided yarn 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; and curing and forming the second intermediate through a mold to obtain a composite anchor rod 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 the 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 the composite anchor rod forming method in Example 1 of the present utility model;
[0016] Figure 2 This is a schematic diagram of the main process of the composite anchor forming method in the second embodiment of the present utility model;
[0017] In the figure: 1. Creel; 2. Glue tank; 3. Glue-impregnated yarn; 4. Preform tooling; 5. Braiding machine; 6. Braiding yarn; 7. Filling box; 8. Winding machine; 9. Metal wire; 10. Heating block; 11. Mold; 12. Tractor; 13. Unwinder; 15. Cutting machine; 16. Winder; 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 are not intended to limit the scope of protection of the present invention.
[0019] Example 1
[0020] like Figure 1 As shown, a composite anchor rod production line includes a preform processing unit for making an impregnated 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; and a curing and molding unit for curing and molding the second intermediate body through a mold 11. After the second intermediate body is cured by the curing and molding unit, a composite anchor rod with a fiber volume content that meets set conditions is obtained.
[0021] The preform processing unit includes 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 includes 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 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 and molded second intermediate out of the mold 11, thereby obtaining a composite anchor rod with a fiber volume content that 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] Also included is a packaging unit, which includes 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.
[0026] The embodiment also provides a composite anchor rod forming method, which includes: making an anchor rod pre-form; weaving the woven yarn 6 on the surface of the anchor rod pre-form to obtain a first intermediate body; making threads on the surface of the first intermediate body to obtain a second intermediate body; and curing and forming the second intermediate body through a mold 11 to obtain a composite anchor rod with a fiber volume content meeting a set condition.
[0027] (1) Making an anchor rod pre-form:
[0028] The radial fibers used in the utility model are installed on the creel 1, and the radial fibers are dipped in the glue tank 2 to obtain dipped yarn 3;
[0029] The dipped yarn 3 is pre-formed into a cylindrical anchor rod pre-form through a pre-forming tool 4.
[0030] (2) Weaving the woven yarn 6 on the surface of the anchor rod pre-form to obtain a first intermediate body:
[0031] The woven yarn 6 is woven on the surface of the anchor rod pre-form by using the braiding machine 5 to obtain the first intermediate body; the woven yarn 6 is dipped through the glue injection box 7 to ensure good dipping of the woven yarn.
[0032] (3) Making threads on the surface of the first intermediate body to obtain a second intermediate body:
[0033] The metal wire 9 (or metal strip according to production needs) is spirally wound on the outer surface of the woven yarn 6 (i.e. the surface of the first intermediate body) by using the winding machine 8 to form threads and obtain the second intermediate body.
[0034] The metal strip and the metal wire for winding the anchor rod are made of metal materials with good heat conduction performance and small hardness, and are subjected to surface treatment, which can not only ensure the curing effect of the resin at the thread position, but also will not damage the mold, and can also ensure that the cured resin is not stuck together to ensure normal unwinding.
[0035] (4) Curing and forming the second intermediate body through the mold 11 to obtain a composite anchor rod with a fiber volume content meeting a set condition:
[0036] The dipped yarn 3, the woven yarn 6 and the metal wire 9 (i.e. the second intermediate body) are sent into the mold 11 heated by the heating block 10 to be cured and formed, and a composite anchor rod with a fiber volume content meeting a set condition is obtained.
[0037] After solidification, the composite anchor rod is pulled out of the mold 11 by a tractor 12. The metal wire 9 is unwound out of the composite anchor rod by an unwinder 13. The wire is then rewound by a reel 16, or, after reaching the required length, cut by a cutter 15 and rewound for packaging. The unwound metal strip and wire can be reused, thus reducing production costs.
[0038] The composite anchor rod of the utility model 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 reach ≥70%.
[0039] The length of the mold for curing and forming the composite anchor rod in the utility model is 900-1000 mm, and the heating is divided into three zones. The heating length of a single zone is 200 mm to 220 mm, and the total heating zone length is 600-660 mm. Compared with the anchor rod cured and formed in 5-6 sections of the oven (the length of a single section of the 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, the oven and the anchor rod to be cured are not in direct contact, but the anchor rod to be cured is in direct contact with the hot air in the oven, which has low heat transfer efficiency and requires a higher curing temperature of 200-340°C), in the utility model, the anchor rod to be cured is in direct contact with the mold, which has high heat transfer efficiency; 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 emissions that are directly discharged to pollute the environment. If activated carbon adsorption is used, the production cost increases. In the utility model, the anchor rods are cured in the mold, no smoke is generated, and no activated carbon adsorption is required, thereby reducing production costs.
[0042] Example 2
[0043] The main difference between this embodiment and the first embodiment is that the second intermediate processing unit in this embodiment further includes a stripping cloth unwinding tool 17 for unwinding the stripping cloth 18; and a wrapper 19 for wrapping the stripping cloth 18 on the surface of the first intermediate after threading.
[0044] like Figure 2 As shown, this embodiment also provides a composite anchor forming method, which is detailed as follows.
[0045] (1) Making anchor rod preforms:
[0046] The radial fibers used in the present invention are mounted on a yarn rack 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) The woven yarn 6 is woven on the surface of the anchor rod preform to obtain a first intermediate body:
[0049] The woven yarn 6 is woven on the surface of the anchor rod preform by a weaving machine 5 to obtain a first intermediate body; the woven yarn 6 is impregnated by a feeding box 7 to ensure good impregnation of the woven yarn.
[0050] (3) Threads are made on the surface of the first intermediate body to obtain a second intermediate body:
[0051] The metal wire 9 (or metal strip according to production needs) is spirally wound on the outer surface of the woven yarn 6 (i.e. the surface of the first intermediate body) by a winding machine 8 to form threads;
[0052] The release cloth 18 is unwound by a release cloth unwinding tool 17, and the release cloth 18 is wrapped around the surface of the first intermediate body after the threads are made by a covering device 19 to obtain a second intermediate body.
[0053] The metal strip and the metal wire for winding the anchor rod are made of metal materials with good heat conduction performance and small hardness, and are subjected to surface treatment, which can ensure the curing effect of the resin at the thread position, will not damage the mold, and can also ensure that the cured resin is not stuck together to ensure normal unwinding.
[0054] (4) The second intermediate body is cured and formed by a mold 11 to obtain a composite anchor rod with a fiber volume content meeting the set conditions:
[0055] The impregnated yarn 3, the woven yarn 6, and the metal wire 9 (i.e. the second intermediate body) are sent into the mold 11 heated by the heating block 10 to be cured and formed, and a composite anchor rod with a fiber volume content meeting the set conditions is obtained.
[0056] The cured and formed composite anchor rod is pulled out of the mold 11 by a traction machine 12; the release cloth 18 is first torn off, and then the metal wire 9 is unwound from the composite anchor rod by an unwinding machine 13; the metal wire 9 is wound by a winding machine 16, or after reaching the required length, the metal wire 9 is cut and wound by a cutting machine 15. The unwound metal strip and the metal wire can be reused, thereby reducing production costs.
[0057] After the release cloth 18 is torn off, rough lines are formed on the surface of the anchor rod, which improves the anchoring effect of the anchor rod when in use.
[0058] Example Three
[0059] Based on the composite anchor rod production line and composite anchor rod forming method described in Example 1 and Example 2, this embodiment provides a composite anchor rod, which is manufactured using the composite anchor rod production line and composite anchor rod 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 forming 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 tank (2) for dipping the radial fibers into glue to obtain a dipped yarn (3); A preforming tool (4) for preforming a 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; 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 includes: a stripping cloth unwinding tool (17) for unwinding the stripping cloth (18); A wrapper (19) is used for wrapping a demoulding cloth (18) on the surface of the first intermediate body after threading.
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 body after solidification and molding out of the mold (11), thereby obtaining a composite anchor rod having a fiber volume content that meets set conditions; An unwinder (13) for unwinding a metal wire (9) or a metal strip from a composite anchor rod.
7. The composite anchor production line according to claim 1, characterized in that: The invention 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 according to any one of claims 1 to 7.