Microwave curing oven device for FRP anchor rod

Abstract

The utility model discloses a microwave curing drying channel device for FRP anchor rod relates to anchor rod microwave curing technical field, it aims at solving the microwave curing device of existing because fixed length integration box structure, cannot according to FRP anchor rod actual length effective heating, leads to short anchor rod overcuring, long anchor rod undercuring, and further influence product mechanical property consistency, and limit the problem of production line flexibility and equipment utilization rate, its technical scheme main points are including having first drying channel body, the upper end surface fixed connection of first drying channel body has first outer box, the inside of first drying channel body is equipped with the first conveying belt of anchor rod transmission, the upper of first outer box is equipped with the control portion, one side of first drying channel body is equipped with second drying channel body, the upper end surface fixed connection of second drying channel body has second outer box. Reach the length adjustable of effective microwave heating area, the advantage that curing process flexibility is high, adapts the continuous production of multi-specification anchor rod.

Description

Technical Field

[0001] This utility model relates to the field of microwave curing technology for anchor bolts, and more particularly to a microwave curing oven device for FRP anchor bolts. Background Technology

[0002] FRP anchor bolts are made of fiber-reinforced polymer composite materials (such as glass fiber and carbon fiber). The microwave curing oven is a continuous, energy-efficient, online curing device specifically designed for the production of fiber-reinforced composite anchor bolts. This device uses microwave energy as a heat source to rapidly and uniformly cure pultruded FRP anchor bolts that are still in the incomplete curing stage through non-contact volume heating. It is a key piece of equipment for achieving automated and large-scale production of FRP anchor bolts.

[0003] However, the existing microwave curing ovens for FRP anchors all have an integrated structure for the length of the microwave curing chamber, and the length of the effective microwave heating zone is usually a fixed value. However, in actual engineering applications, the length of FRP anchors varies greatly due to different support requirements. When the anchor length does not match the curing zone, it affects the consistency of the product's mechanical properties, limits the production line's flexibility to adapt to multiple product specifications, and reduces equipment utilization and production efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a microwave curing oven device for FRP anchor bolts. It has the advantages of adjustable effective microwave heating zone length, high curing process flexibility, and adaptability to continuous production of anchor bolts of various specifications. It solves the problem that existing microwave curing devices, due to their fixed-length integrated box structure, cannot effectively heat according to the actual length of the FRP anchor bolts, resulting in over-curing of short anchor bolts and under-curing of long anchor bolts, which in turn affects the consistency of product mechanical properties and limits the flexibility of the production line and the utilization rate of equipment.

[0005] The technical solution of this utility model is as follows: a microwave curing oven device for FRP anchor rods, comprising a first oven body, a first outer box fixedly connected to the upper end face of the first oven body, a first conveyor belt for conveying anchor rods inside the first oven body, a control unit above the first outer box, a second oven body on one side of the first oven body, a second outer box fixedly connected to the upper end face of the second oven body, a second conveyor belt inside the second oven body, positioning blocks fixedly connected to the front and rear ends of one side of the first and second oven bodies, positioning grooves for insertion into the positioning blocks being opened inside the front and rear ends of the other side of the first and second oven bodies, and the first and second oven bodies being connected by a fixing mechanism.

[0006] By adopting the above technical solution, the effective heating length of the drying tunnel is modularly expanded, and FRP anchors of different lengths can be flexibly combined and used to effectively solve the problem of over-curing or under-curing caused by the fixed length of the curing zone, thereby improving product consistency and equipment adaptability.

[0007] Furthermore, each of the four ends of the second drying tunnel body is fixedly connected to a caster wheel, and each of the four caster wheels is equipped with a locking device. Each of the four ends of the first drying tunnel body is fixedly connected to a support leg.

[0008] By adopting the above technical solutions, the second drying tunnel body is easy to move and connect, and the locking component can ensure its stable fixation in the working state; while the first drying tunnel body adopts fixed support legs to ensure the smooth operation of the main section, taking into account the overall stability and operational flexibility of the equipment.

[0009] Furthermore, the fixing mechanism includes a movable plate, which is located on one side of the front and rear ends of the first drying tunnel body and the second drying tunnel body respectively. The movable plate is rotatably connected to the first drying tunnel body and the second drying tunnel body through a movable shaft, and a limiting groove is formed inside the movable plate.

[0010] By adopting the above technical solution, the movable plate can rotate around the movable axis to achieve docking or separation with the fixed rod, providing a structural basis for the rapid connection and disassembly between drying tunnel modules.

[0011] Furthermore, the fixing mechanism also includes a fixing rod that engages with the limiting groove. The fixing rod is located on the other side of the front and rear ends of the first drying tunnel body and the second drying tunnel body, respectively. The fixing rod has a movable cavity inside, and a first guide rod is fixedly connected inside the movable cavity. Through holes are opened on both the left and right sides inside the fixing rod.

[0012] By adopting the above technical solution, the fixed rod acts as a locking component, forming a locking structure with the movable plate. Its internal guide and through-hole design provides a channel for the sliding and insertion of the U-shaped insert, ensuring a reliable connection.

[0013] Furthermore, U-shaped inserts that pass through two through holes and are slidably fitted on the left and right sides of the outer side of the first guide rod are provided, and slots that are inserted into the two U-shaped inserts are provided on the left and right sides of the inner side of the movable plate.

[0014] By adopting the above technical solution, after the U-shaped plug is inserted into the slot, it can firmly lock the movable plate and the fixed rod, preventing the drying tunnel from loosening due to vibration or force during operation, and ensuring the safe and stable operation of the equipment.

[0015] Furthermore, the inner wall of the fixed rod is provided with a movable groove, and a second guide rod is fixedly connected inside the movable groove. One end of each of the two U-shaped inserts is fixedly connected to a guide block that is slidably sleeved outside the second guide rod, and a spring that is sleeved outside the second guide rod is fixedly connected between the two guide blocks.

[0016] By adopting the above technical solution, the spring provides a restoring force, so that the U-shaped plug automatically maintains the locked state of the insertion slot without external force, realizing the "self-locking" function; at the same time, the double guide rod structure ensures that the U-shaped plug moves smoothly and without deviation, improving the reliability of the mechanism.

[0017] Furthermore, the front end face of the U-shaped plug is fixedly connected to an operating part that facilitates manual pressing, and the operating part is exposed on the front end face of the fixing rod.

[0018] By adopting the above technical solution, operators only need to press the exposed operating part to overcome the spring force and retract the U-shaped plug, achieving quick unlocking without tools, significantly improving the efficiency of module disassembly and assembly, and facilitating rapid production line switching.

[0019] Furthermore, ultrasonic probes are fixedly connected to the front and rear ends of the left and right sides inside the first and second outer casings.

[0020] By adopting the above technical solution, internal quality non-destructive testing can be carried out simultaneously during the process of FRP anchor rods passing through the drying tunnel, and defects such as delamination and voids can be identified in real time, realizing the integration of "curing + quality inspection" and improving the level of product quality control and the degree of intelligent production.

[0021] The beneficial effects of this utility model are:

[0022] 1. This microwave curing oven device for FRP anchor rods, by setting up a detachable and splicable first oven oven body and a second oven oven body, and in conjunction with the plug-in structure of positioning blocks and positioning grooves, can flexibly expand or reduce the length of the effective microwave heating zone according to the actual length of the FRP anchor rod. This avoids over-curing and embrittlement of short anchor rods due to excessive dwell time, and under-curing problems caused by insufficient heating at the tail of long anchor rods, significantly improving the consistency and reliability of the product's mechanical properties.

[0023] 2. The microwave curing oven device for FRP anchor bolts has a first oven body with fixed support legs to ensure stable operation of the main working section; the bottom of the second oven body is equipped with casters with locking parts for easy movement, docking and storage, taking into account both stability and ease of operation.

[0024] 3. The microwave curing oven device for FRP anchor bolts is equipped with ultrasonic probes in the first and second outer chambers. It can simultaneously perform non-contact detection of internal defects (such as delamination and voids) during the anchor bolt curing process, realizing the integration of "curing + quality inspection" and improving the level of product quality control. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the microwave curing oven device of this utility model;

[0026] Figure 2 This is a front view of the three-dimensional structure of the microwave curing oven device of this utility model;

[0027] Figure 3 This is a partially enlarged structural diagram of the fixing mechanism of this utility model.

[0028] In the diagram: 1. First outer casing; 2. Control unit; 3. First drying tunnel body; 4. First conveyor belt; 5. Positioning block; 6. Fixing mechanism; 61. Movable plate; 62. Movable shaft; 63. Limiting groove; 64. Slot; 65. Fixing rod; 66. U-shaped insert; 67. Through hole; 68. First guide rod; 69. Second guide rod; 610. Guide block; 611. Spring; 612. Movable groove; 613. Movable cavity; 7. Second outer casing; 8. Second drying tunnel body; 9. Ultrasonic probe; 10. Universal wheel; 11. Positioning groove; 12. Second conveyor belt. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-3The microwave curing oven device for FRP anchor rods in this embodiment includes a first oven body 3, a first outer box 1 fixedly connected to the upper end of the first oven body 3, a first conveyor belt 4 for conveying anchor rods inside the first oven body 3, a control unit 2 above the first outer box 1, a second oven body 8 on one side of the first oven body 3, universal wheels 10 fixedly connected to the four ends of the lower part of the second oven body 8, each of the four universal wheels 10 having a locking element, support legs fixedly connected to the four ends of the lower part of the first oven body 3, a second outer box 7 fixedly connected to the upper end of the second oven body 8, a second conveyor belt 12 inside the second oven body 8, positioning blocks 5 fixedly connected to the front and rear ends of one side of the first oven body 3 and the second oven body 8, and positioning grooves 11 for inserting into the positioning blocks 5 opened inside the front and rear ends of the other side of the first oven body 3 and the second oven body 8, and the first oven body 3 and the second oven body 8 are connected by a fixing mechanism 6.

[0031] In this embodiment, by designing the drying tunnel as a modular structure that can be spliced, users can flexibly choose to use a single-section or double-section drying tunnel according to the actual length of the FRP anchor rod. When it is necessary to extend the heating zone, the second drying tunnel body 8 is pushed so that its positioning block 5 is inserted into the positioning groove 11 of the first drying tunnel body 3 to complete the initial alignment, and then locked by the fixing mechanism 6 to achieve dynamic adaptation of the length of the effective microwave heating zone. This effectively avoids the problem of over-curing or under-curing caused by length mismatch, and significantly improves the consistency of product quality and the flexibility of the equipment.

[0032] Please see Figures 2-3In this embodiment, the fixing mechanism 6 includes a movable plate 61, which is located on one side of the front and rear ends of the first drying tunnel body 3 and the second drying tunnel body 8, respectively. The movable plate 61 is rotatably connected to the first drying tunnel body 3 and the second drying tunnel body 8 via a movable shaft 62. A limiting groove 63 is formed inside the movable plate 61. The fixing mechanism 6 also includes a fixing rod 65 that engages with the limiting groove 63. The fixing rod 65 is located on the other side of the front and rear ends of the first drying tunnel body 3 and the second drying tunnel body 8, respectively. A movable cavity 613 is formed inside the fixing rod 65. A first guide rod 68 is fixedly connected inside the movable cavity 613. Through holes 67 are formed on both the left and right sides inside the fixing rod 65. On the left and right sides of the outside of the rod 68, U-shaped inserts 66 are slidably fitted, passing through two through holes 67 and penetrating the fixed rod 65. On the left and right sides of the inside of the movable plate 61, slots 64 are opened to be inserted into the two U-shaped inserts 66. The inner wall of the fixed rod 65 is provided with a movable groove 612. A second guide rod 69 is fixedly connected inside the movable groove 612. One end of each of the two U-shaped inserts 66 is fixedly connected with a guide block 610 that is slidably fitted outside the second guide rod 69. A spring 611 that is fitted outside the second guide rod 69 is fixedly connected between the two guide blocks 610. The front end face of the U-shaped insert 66 is fixedly connected with an operating part that is easy to press manually. The operating part is exposed on the front end face of the fixed rod 65.

[0033] It should be noted that the fixing mechanism 6 adopts a self-locking structure driven by a spring 611: when the movable plate 61 rotates to align with the fixing rod 65, the spring 611 pushes the U-shaped insert 66 to slide outward, so that its two ends automatically insert into the slots 64 of the movable plate 61, achieving a firm lock; during disassembly, it is only necessary to manually press the exposed operating part to overcome the force of the spring 611 and retract the U-shaped insert 66, and then rotate the movable plate 61 to complete the separation. This structure requires no tools, is easy to operate, and has a reliable connection, greatly improving the changeover efficiency of the production line.

[0034] Please see Figures 1-2 In this embodiment, ultrasonic probes 9 are fixedly connected to the front and rear ends of the left and right sides inside the first outer casing 1 and the second outer casing 7.

[0035] It should be noted that the ultrasonic probe 9 can perform real-time non-destructive testing on the internal structure of the FRP anchor rod as it passes through the drying tunnel with the conveyor belt, promptly identifying defects such as delamination, voids, or uneven fiber distribution, realizing integrated intelligent production of "curing and quality inspection at the same time", and effectively ensuring the mechanical properties and reliability of the finished products.

[0036] The working principle of the above embodiments is as follows:

[0037] In use, first determine whether the curing tunnel length needs to be extended based on the length of the FRP anchor to be cured. If the anchor is short, curing can be completed using only the first curing tunnel body 3. If the anchor is long, push the second curing tunnel body 8 horizontally against one side of the first curing tunnel body 3, so that the positioning block 5 on the second curing tunnel body 8 is inserted into the positioning groove 11 at the corresponding end of the first curing tunnel body 3, achieving initial alignment and connection between the two. The operator then moves the movable plate 61 in the fixing mechanism 6, causing it to rotate around the movable shaft 62 toward the fixing rod 65 until the limiting groove 63 on the movable plate 61 is aligned with the fixing rod 65, and the spring 611 releases its tension. Under the action of force, the U-shaped insert 66 slides outward along the first guide rod 68 and the second guide rod 69, and its two ends automatically insert into the slots 64 on both sides of the movable plate 61, thereby locking the movable plate 61 and the fixed rod 65, realizing a stable connection between the first drying tunnel body 3 and the second drying tunnel body 8; if it needs to be separated, simply press the operating part at the front end of the U-shaped insert 66 manually to overcome the force of the spring 611 and make the U-shaped insert 66 retract, thereby unlocking and rotating the movable plate 61 to separate the two sections of the drying tunnel; the ultrasonic probe 9 can perform online detection of its internal quality when the anchor rod passes through, and promptly detect defects such as delamination and voids.

[0038] It is important to note that the ultrasonic probe 9 requires a well-shielded microwave environment to prevent interference from the microwave electromagnetic field on the ultrasonic signal acquisition. Simultaneously, the ultrasonic probe 9 should be installed away from microwave feed inlets and high-voltage areas, and an appropriate coupling distance should be maintained between it and the FRP anchor surface to ensure detection accuracy. Furthermore, this detection module serves as an auxiliary quality monitoring tool; its data can be fed back to the control unit 2 in real time, but it should not affect the microwave curing process of the drying tunnel.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microwave curing oven device for FRP anchor bolts, comprising a first oven body (3), a first outer casing (1) fixedly connected to the upper end face of the first oven body (3), a first conveyor belt (4) for conveying anchor bolts being provided inside the first oven body (3), and a control unit (2) provided above the first outer casing (1), characterized in that: A second drying tunnel body (8) is provided on one side of the first drying tunnel body (3). A second outer box (7) is fixedly connected to the upper end of the second drying tunnel body (8). A second conveyor belt (12) is provided inside the second drying tunnel body (8). Positioning blocks (5) are fixedly connected to the front and rear ends of one side of the first drying tunnel body (3) and the second drying tunnel body (8). Positioning grooves (11) that are inserted into the positioning blocks (5) are opened inside the front and rear ends of the other side of the first drying tunnel body (3) and the second drying tunnel body (8). The first drying tunnel body (3) and the second drying tunnel body (8) are connected by a fixing mechanism (6).

2. The microwave curing oven apparatus for FRP anchor bolts according to claim 1, characterized in that: The four ends of the second drying tunnel body (8) are fixedly connected with casters (10), and the four casters (10) are provided with locking parts. The four ends of the first drying tunnel body (3) are fixedly connected with support legs.

3. The microwave curing oven apparatus for FRP anchor bolts according to claim 1, characterized in that: The fixing mechanism (6) includes a movable plate (61), which is located on one side of the front and rear ends of the first drying tunnel body (3) and the second drying tunnel body (8). The movable plate (61) is rotatably connected to the first drying tunnel body (3) and the second drying tunnel body (8) through a movable shaft (62). A limiting groove (63) is opened inside the movable plate (61).

4. The microwave curing oven apparatus for FRP anchor bolts according to claim 3, characterized in that: The fixing mechanism (6) also includes a fixing rod (65) that engages with the limiting groove (63). The fixing rod (65) is located on the other side of the front and rear ends of the first drying tunnel body (3) and the second drying tunnel body (8). The fixing rod (65) has an active cavity (613) inside. The active cavity (613) is fixedly connected to the first guide rod (68). The fixing rod (65) has through holes (67) on both the left and right sides inside.

5. The microwave curing oven apparatus for FRP anchor bolts according to claim 4, characterized in that: The first guide rod (68) has U-shaped inserts (66) that are slidably sleeved on both the left and right sides outside, passing through two through holes (67) and the fixed rod (65). The movable plate (61) has slots (64) on both the left and right sides inside, which are inserted into the two U-shaped inserts (66).

6. The microwave curing oven apparatus for FRP anchor bolts according to claim 5, characterized in that: The inner wall of the fixed rod (65) is provided with a movable groove (612), and a second guide rod (69) is fixedly connected inside the movable groove (612). One end of each of the two U-shaped inserts (66) is fixedly connected to a guide block (610) that is slidably sleeved outside the second guide rod (69). A spring (611) that is sleeved outside the second guide rod (69) is fixedly connected between the two guide blocks (610).

7. The microwave curing oven apparatus for FRP anchor bolts according to claim 6, characterized in that: The front end face of the U-shaped plug (66) is fixedly connected to an operating part that is easy to press manually, and the operating part is exposed on the front end face of the fixing rod (65).

8. The microwave curing oven apparatus for FRP anchor bolts according to claim 1, characterized in that: Ultrasonic probes (9) are fixedly connected to the front and rear ends of the left and right sides inside the first outer casing (1) and the second outer casing (7).

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