A thermoplastic composite material rib cutting and forming device and cutting and forming method thereof

Abstract

The present invention discloses a thermoplastic composite rib cutting and forming device and a cutting and forming method thereof, which belongs to the field of civil engineering and includes an axial feed mechanism, a composite rib clamping and rotating mechanism, and a radial feed mechanism. The composite rod clamping and rotating mechanism clamps the thermoplastic composite rod and drives it to rotate. The radial feed mechanism is located on the axial feed mechanism and can move parallel to the axial direction of the thermoplastic composite rod under the driving side effect of the axial feed mechanism. The cutting tool is installed on the radial feed mechanism and can move parallel to the radial direction of the thermoplastic composite rod under the driving side effect of the radial feed mechanism. The feed position of the cutting tool is adjusted so that it contacts the thermoplastic composite rod. The axial feed mechanism drives the cutting tool on the radial feed mechanism to move parallel to the axial direction of the thermoplastic composite rod to cut and form the ribs of the thermoplastic composite rod. This forming device has strong applicability, low cost, and simple operation. The prepared ribs are stable and controllable in size.

Description

Technical Field

[0001] The invention belongs to the field of civil engineering, and in particular relates to a thermoplastic composite material reinforcement rib cutting and forming device and a cutting and forming method thereof. Background Art

[0002] Continuous fiber reinforced resin-based composite bars have the characteristics of light weight, high strength, and corrosion resistance. They can effectively solve the corrosion problem by replacing steel bars in marine engineering construction, and can greatly improve the service performance and service life of marine engineering structures, with significant economic benefits. Compared with thermosetting resin-based composite bars, thermoplastic resin-based composite bars have the advantages of being able to be repeatedly molded, having high toughness and good durability, and better meet the needs of marine engineering applications. At present, the winding rib forming process is one of the more mature rib processing methods. However, with the increase in the fiber content of thermoplastic fiber reinforced composite bars, the processing effect of the winding embedded ribs is poor. In addition, the interface bonding performance between the winding external convex ribs and the thermoplastic fiber reinforced composite rods is poor. Therefore, it is urgent to propose a thermoplastic fiber reinforced composite bar rib forming device suitable for high fiber content, high production efficiency, low cost and simple operation. Summary of the Invention

[0003] In view of the above shortcomings, the present invention proposes a thermoplastic composite rib cutting and forming device to solve the problem that traditional winding rib forming devices are not suitable for processing ribs of thermoplastic fiber reinforced composite materials with high fiber content.

[0004] To achieve the above-mentioned object, the technical solution of the present invention is implemented as follows: a thermoplastic composite rib cutting and forming device, comprising a base, a cutting tool consistent with the width of the thermoplastic composite rib, an axial feeding mechanism, a radial feeding mechanism and a composite rod clamping and rotating mechanism, wherein the axial feeding mechanism and the composite rod clamping and rotating mechanism are both fixedly mounted on the base, the composite rod clamping and rotating mechanism can clamp the thermoplastic composite rod and drive it to rotate, the radial feeding mechanism is located on the axial feeding mechanism, and under the driving side effect of the axial feeding mechanism, the radial feeding mechanism moves along the thermoplastic composite rod. The cutting tool is installed on the radial feeding mechanism, and the cutting tool moves along the radial direction of the thermoplastic composite rod under the driving side effect of the radial feeding mechanism; during cutting, the radial feeding position of the cutting tool is adjusted so that it contacts one end of the thermoplastic composite rod to the cutting depth, the composite rod clamping and rotating mechanism drives the thermoplastic composite rod to rotate, and at the same time, the axial feeding mechanism drives the radial feeding mechanism, thereby driving the cutting tool to move along one end of the thermoplastic composite rod to the other end, thereby cutting and forming the ribs of the thermoplastic composite rod.

[0005] Furthermore, the axial feed mechanism includes an axial feed screw, an axial guide rail platform and an axial feed slide. The axial feed screw is installed in parallel with the axial guide rail platform. The axial feed slide is slidingly connected to the axial guide rail platform. The axial feed slide is fixedly connected to the nut of the axial feed screw.

[0006] Furthermore, the radial feed mechanism includes a radial feed screw, a rotating handwheel, a radial guide rail platform, a radial feed slide, a vertical lifting slide and a cutting tool fixing support rod. A radial feed screw is installed parallel to the radial guide rail platform, the rotating handwheel is fixedly connected to the outer end of the radial feed screw, and a position locking mechanism is installed on the rotating handwheel. The radial feed slide is fixedly connected to the nut of the radial feed screw. The radial feed slide is moved and fixed on the radial guide rail platform by rotating the rotating handwheel and the position locking mechanism. The vertical lifting slide is fixedly installed on the radial feed slide. The cutting tool fixing support rod is slidably connected to the vertical lifting slide and moves in the vertical direction and then locks the height through the position fixing structure. The cutting tool is detachably fixedly connected to the cutting tool fixing support rod.

[0007] Furthermore, the axial feed slide is also fixedly installed with a composite rod fixing frame, the crossbeam of the composite rod fixing frame is provided with a hole, a bearing pair is installed in the hole, and the composite rod passes through the inner ring of the bearing pair to support the thermoplastic composite rod.

[0008] Furthermore, the pitch of the radial feed screw thread guide rod is 0.1-1 mm.

[0009] Another object of the present invention is to provide a method for cutting and forming thermoplastic composite ribs using the cutting and forming device described above, comprising the following steps:

[0010] Step 1: Adjust the axial feed slide to the leftmost end of the axial guide platform, and adjust the radial feed slide to the leftmost end of the radial guide platform;

[0011] Step 2: Pass the thermoplastic composite rod through the composite rod fixing frame and install both ends of the rod on the composite rod clamping and rotating mechanism. Turn the rotating hand wheel and adjust the position of the cutting tool fixing rod to make the cutting tool contact the thermoplastic composite rod.

[0012] Step 3: Start the motor, adjust the rotation speed of the axial feed screw and the composite rod clamping rotation mechanism, and cut ribs on the thermoplastic composite rod.

[0013] Furthermore, the thermoplastic resin matrix of the thermoplastic composite rod is a thermoplastic resin such as nylon 6, nylon 12, polypropylene, polymethyl methacrylate, polyethylene, etc., and the reinforcing fiber is a fiber such as continuous carbon fiber or continuous glass fiber.

[0014] Compared with the prior art, the beneficial effects and advantages of the present invention are as follows: the thermoplastic composite ribs prepared by the present forming device have good dimensional stability of the ribs, and the rib height, rib spacing and rib width are stable in production; the present forming device can be matched with thermoplastic fiber reinforced composite ribs of different diameters, and at the same time, can also be matched with thermosetting fiber reinforced composite ribs of different diameters, thereby improving production efficiency and having extremely strong applicability; the present forming device can achieve the preparation of thermoplastic fiber reinforced composite ribs with different rib heights, rib widths and rib spacings by adjusting the rotation speed of the transmission screw and the rib positioning drum, and adjusting the thickness of the angle grinder cutting blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a thermoplastic composite rib cutting and forming device according to an embodiment of the present invention;

[0016] Figure 2 This is an axonometric view of the axial feed mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0017] Figure 3 This is a front view of an axial feed mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0018] Figure 4 A top view of the axial feed mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0019] Figure 5 A side view of the axial feed mechanism of the thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0020] Figure 6 This is an axonometric view of a composite rod clamping and rotating mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0021] Figure 7 This is a front view of a composite rod clamping and rotating mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0022] Figure 8 A top view of a composite rod clamping and rotating mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0023] Figure 9 A side view of a composite rod clamping and rotating mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0024] Figure 10This is an axonometric view of a radial feed mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0025] Figure 11 This is a front view of a radial feed mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0026] Figure 12 A top view of a radial feed mechanism of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0027] Figure 13 A side view of a radial feed mechanism system of a thermoplastic composite rib cutting and forming device according to Example 1 of the present invention;

[0028] Among them, 1. axial feed screw; 2. axial feed mechanism; 4. axial feed slide; 5. transmission gear; 6. composite rod clamping and rotating mechanism; 7. clamping drum; 9. rotating gear; 10. radial feed screw; 11. rotating handwheel; 12. radial guide platform; 14. radial feed slide; 15. vertical lifting slide; 16. cutting tool fixing support rod; 18. cutting tool; 19. composite rib fixing frame; 20. thermoplastic composite rod. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features therein can be combined with each other in the absence of conflict, and the embodiments described are only part of the embodiments of the present invention, not all of the embodiments.

[0030] Example 1

[0031] like Figures 1 to 13As shown, a thermoplastic composite rib cutting and forming device includes a base, a cutting tool 18 with a width consistent with the thermoplastic composite rib, an axial feeding mechanism, a radial feeding mechanism and a composite rod clamping and rotating mechanism 6. The axial feeding mechanism and the composite rod clamping and rotating mechanism are both fixedly mounted on the base. The composite rod clamping and rotating mechanism 6 can clamp the thermoplastic composite rod 20 and drive it to rotate. The radial feeding mechanism is located on the axial feeding mechanism. Under the driving side effect of the axial feeding mechanism, the radial feeding mechanism moves along the axial direction of the thermoplastic composite rod 20. The tool 18 is mounted on the radial feed mechanism. Under the driving effect of the radial feed mechanism, the cutting tool 18 moves radially along the thermoplastic composite rod 20. During cutting, the radial feed position of the cutting tool 18 is adjusted so that it contacts one end of the thermoplastic composite rod 20 and is adjusted to the cutting depth. The composite rod clamping and rotating mechanism 6 drives the thermoplastic composite rod 20 to rotate. At the same time, the axial feed mechanism drives the radial feed mechanism, thereby driving the cutting tool 18 to move along one end of the thermoplastic composite rod 20 to the other end, thereby cutting and forming the ribs of the thermoplastic composite rod 20.

[0032] The axial feed mechanism includes an axial feed screw 1, an axial guide rail platform 2 and an axial feed slide 4. The axial feed screw 1 is installed parallel to the axial guide rail platform 2. One end of the screw 1 is connected to the transmission gear 5. The screw 1 is driven to rotate by an external drive device through the transmission gear 5. The axial feed slide 4 is slidingly connected to the axial guide rail platform 2. The axial feed slide 4 is fixedly connected to the nut of the axial feed screw 1.

[0033] The radial feed mechanism includes a radial feed screw 10, a rotating handwheel 11, a radial guide rail platform 12, a radial feed slide 14, a vertical lifting slide 15 and a cutting tool fixed support rod 16. The radial feed screw 10 is installed parallel to the radial guide rail platform 12, the rotating handwheel 11 is fixedly connected to the outer end of the radial feed screw 10, and a position locking mechanism is installed on the rotating handwheel 11. The radial feed slide 14 is fixedly connected to the nut of the radial feed screw 10. The radial feed slide 14 is moved and fixed on the radial guide rail platform 12 by rotating the rotating handwheel 11 and the position locking mechanism. The vertical lifting slide 15 is fixedly installed on the radial feed slide 12. The cutting tool fixed support rod 16 is slidably connected to the vertical lifting slide 16 and moves in the vertical direction and then locks the height through the position fixing structure. The cutting tool 18 is detachably fixedly connected to the cutting tool fixed support rod 16.

[0034] The axial feed slide 12 is also fixedly mounted with a composite rod fixing frame 19. The composite rod fixing frame 19 has a hole in it. A bearing pair is installed in the hole and is coaxial with the clamped thermoplastic composite rod 20. The composite rod 20 passes through the inner ring of the bearing pair, thereby supporting the thermoplastic composite rod 20.

[0035] One end of the composite rod clamping and rotating mechanism 6 is connected to a rotating gear 9 , and the composite rod clamping and rotating mechanism 6 is rotationally driven by an external driving device via the rotating gear 9 .

[0036] The pitch of the threaded guide rod of the radial feed screw 10 is 0.1 mm.

[0037] Example 2

[0038] This embodiment provides a method for cutting and forming composite ribs using the cutting and forming device described in Example 1, specifically comprising the following steps:

[0039] Step 1: Adjust the axial feed slide 4 to the leftmost end of the axial guide platform 2, and adjust the radial feed slide 14 to the leftmost end of the radial guide platform 12;

[0040] Step 2: Pass the thermoplastic composite rod 20 through the composite rod fixing frame 19 and install both ends of the rod on the composite rod clamping and rotating mechanism. Turn the rotary hand wheel 11 and adjust the position of the cutting tool fixing support rod 16 to make the cutting tool 18 contact the thermoplastic composite rod 20.

[0041] Step 3: Start the motor, adjust the rotation speed of the axial feed screw 1 and the composite rod clamping rotation mechanism 6, and cut ribs on the thermoplastic composite rod 20.

[0042] The thermoplastic resin matrix of the thermoplastic composite reinforcement is a thermoplastic resin such as nylon 6, nylon 12, polypropylene, polymethyl methacrylate, polyethylene, etc., and the reinforcing fibers are continuous carbon fibers or continuous glass fibers.

[0043] Example 3

[0044] This embodiment provides a 10 mm continuous carbon fiber reinforced PA6 composite rib cutting and forming device. The structure of this forming device is the same as that of Example 1. It includes a base, a cutting tool 18 consistent with the width of the thermoplastic composite rib, an axial feeding mechanism, a radial feeding mechanism and a composite rod clamping and rotating mechanism. The axial feeding mechanism and the composite rod clamping and rotating mechanism are both fixedly mounted on the base. The composite rod clamping and rotating mechanism 6 clamps the thermoplastic composite rod 20 and drives it to rotate. The radial feeding mechanism is located on the axial feeding mechanism and can move parallel to the axial direction of the thermoplastic composite rod 20 under the driving side effect of the axial feeding mechanism. The cutting tool 18 is mounted on the radial feeding mechanism and can move parallel to the radial direction of the thermoplastic composite rod 20 under the driving side effect of the radial feeding mechanism. The feeding position of the cutting tool 18 is adjusted so that it contacts the thermoplastic composite rod 20. The axial feeding mechanism drives the cutting tool 18 on the radial feeding mechanism to move parallel to the axial direction of the thermoplastic composite rod 20 to cut and form the ribs of the thermoplastic composite rod 20. The thickness of the cutting blade of the cutting tool 18 is 0.5 mm, the pitch of the threaded guide rod of the radial feed screw 10 is 0.5 mm, and the diameter of the fixing hole of the composite reinforcement fixing frame 19 is 11 mm.

[0045] At the same time, a method for cutting and forming 10mm continuous carbon fiber reinforced PA6 composite ribs is provided, comprising the following steps:

[0046] Step 1: Adjust the axial feed slide 4 to the leftmost end of the axial guide platform 2, and adjust the radial feed slide 14 to the leftmost end of the radial guide platform 12;

[0047] Step 2: Pass the continuous carbon fiber reinforced PA6 composite rod 20 through the composite rod fixing frame 19 and install both ends of the rod on the composite rod clamping and rotating mechanism. Turn the rotary hand wheel 11 to adjust the position of the cutting tool fixing support rod 16 so that the cutting tool 18 contacts the continuous carbon fiber reinforced PA6 composite rod.

[0048] Step 3: Start the motor, adjust the rotation speed of the axial feed screw 1 and the composite rod clamping rotation mechanism, and cut ribs on the continuous carbon fiber reinforced PA6 composite rod.

Claims

1. A method for cutting and forming thermoplastic composite ribs, comprising a thermoplastic composite rib cutting and forming device comprising a base, a cutting tool having a width consistent with the width of the thermoplastic composite rib, an axial feed mechanism, a radial feed mechanism, and a composite rod clamping and rotating mechanism. The axial feed mechanism and the composite rod clamping and rotating mechanism are both fixedly mounted on the base. The composite rod clamping and rotating mechanism can clamp the thermoplastic composite rod and drive it to rotate. The radial feed mechanism is located on the axial feed mechanism and moves along the axial direction of the thermoplastic composite rod under the driving effect of the axial feed mechanism. The cutting tool is installed on the radial feed mechanism, and the cutting tool moves along the radial direction of the thermoplastic composite rod under the driving side effect of the radial feed mechanism; when cutting, the radial feed position of the cutting tool is adjusted so that it contacts one end of the thermoplastic composite rod to the cutting depth, and the composite rod clamping and rotating mechanism drives the thermoplastic composite rod to rotate, while the axial feed mechanism drives the radial feed mechanism, thereby driving the cutting tool to move along one end of the thermoplastic composite rod to the other end, thereby cutting and forming the ribs of the thermoplastic composite rod, and the axial feed mechanism includes an axial feed screw, an axial guide platform and an axial feed Feed slide, an axial feed screw is installed in the axial guide rail platform parallel to it, the axial feed slide is slidably connected to the axial guide rail platform, and the axial feed slide is fixedly connected to the nut of the axial feed screw; the axial feed slide is also fixedly installed with a composite rod fixing frame, a hole is opened on the crossbeam of the composite rod fixing frame, a bearing pair is installed in the hole, and the composite rod passes through the inner ring of the bearing pair to support the thermoplastic composite rod; the radial feed mechanism includes a radial feed screw, a rotating handwheel, a radial guide rail platform, a radial feed slide, a vertical lifting slide and a cutting tool fixing support rod, the radial A radial feed screw is installed in the guide rail platform and parallel to it, a rotating handwheel is fixedly connected to the outer end of the radial feed screw, a position locking mechanism is installed on the rotating handwheel, the radial feed slide is fixedly connected to the nut of the radial feed screw, and the radial feed slide is moved and fixed on the radial guide rail platform by rotating the rotating handwheel and the position locking mechanism. The vertical lifting slide is fixedly installed on the radial feed slide, the cutting tool fixing support rod is slidably connected to the vertical lifting slide and moves in the vertical direction to lock the height through the position fixing structure, and the cutting tool is detachably fixedly connected to the cutting tool fixing support rod; It is characterized in that Here are the steps: Step 1: Adjust the axial feed slide to the leftmost end of the axial guide platform, and adjust the radial feed slide to the leftmost end of the radial guide platform; Step 2: Pass the thermoplastic composite rod through the composite rod fixing frame and install both ends of the rod on the composite rod clamping and rotating mechanism. Turn the rotating hand wheel and adjust the position of the cutting tool fixing rod to make the cutting tool contact the thermoplastic composite rod. Step 3: Start the motor, adjust the rotation speed of the axial feed screw and the composite rod clamping rotation mechanism, and cut ribs on the thermoplastic composite rod.

2. The method for cutting and forming thermoplastic composite ribs according to claim 1, wherein: The pitch of the radial feed screw thread guide rod is 0.1-1mm.

3. A thermoplastic composite rib cutting and forming method according to any one of claims 1 or 2, characterized in that: The thermoplastic resin matrix of the thermoplastic composite rod is nylon 6, nylon 12, polypropylene, polymethyl methacrylate or polyethylene.

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