[0041] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0042] The method of the cutting edge of the wheel cutter of the present invention without crimping and dulling during the cutting and slitting process is as follows: Figure 4 As shown in the longitudinal cross-sectional view, during the cutting and slitting process, the blade of the wheel cutter is always pierced through the epoxy resin 2 and glass cloth base 1 of the semi-cured substrate 3 in contact with the blade 15 of the wheel cutter, and only penetrates It does not pierce the epoxy resin 12 of the semi-curing agent in contact with the roller, so that the wheel blade 15 does not contact the roller during the cutting and slitting process, thereby ensuring that the wheel blade 15 will not curl. Passivation, maintain sharpness, and use the brittleness of the epoxy resin of the semi-curing agent. After the epoxy resin 2 and the glass cloth base 1 of the semi-curing agent are cut and the epoxy resin 12 of the semi-curing agent is grooved , The epoxy resin 12 of the semi-curing agent will automatically separate.
[0043] The invention provides a method for eliminating the crimping and dullness of the blade of the wheel cutter during the cutting and slitting process in the cutting and slitting process of the semi-cured resin glass fiber cloth substrate.
[0044] One of the specific methods is to use such Figure 5 The cross-sectional device of the wheel cutter shown is composed of a cylinder 14, a connecting rod 13, a fine adjustment mechanism 21 (composed of a threaded screw 26 and a nut 24), a closed bearing 22, a wheel cutter 6 and a roller 5. It can also be used Image 6 The device shown is composed of a cylinder 14, a connecting rod 13, a fine adjustment mechanism 21, a closed bearing 22, a wheel cutter 6 and a supporting wheel 25. The function of the cylinder 14 is to drive the connecting rod 13, the fine adjustment mechanism 21, the closed bearing 22 and the wheel cutter 6 to move forward and backward through the front (toward the idler 5 or the idler 25) and the rear (away from the idler 5 or the idler 25) movement. Make the wheel cutter 6 achieve the purpose of fast cutting in and out. However, it is difficult to precisely adjust the cutting distance of the cylinder 14 so that the wheel blade 15 pierces the epoxy resin 2 and the glass cloth base 1 of the semi-cured resin fiberglass cloth substrate 3 and only penetrates without piercing the support. The purpose of the epoxy resin 12 of the semi-curing agent contacted by the roller 5 or the supporting wheel 25 is to fine-tune the front and back of the wheel cutter 6 by rotating the threaded screw 26 of the fine-tuning mechanism 21 to make the wheel cutter blade pierce The epoxy resin 2 and the glass cloth base 1 of the semi-cured resin glass fiber cloth base sheet 3 are only pierced without piercing the epoxy resin 12 of the semi-curing agent in contact with the roller 5. The specific operations are as follows:
[0045] Before the cutting process starts, first move the cylinder 14 forward to the apex, push the connecting rod 13, the fine adjustment mechanism 21, the closed bearing 22 and the wheel cutter 6 to move forward, but the blade 15 of the wheel cutter 6 has not yet reached the required position ( That is, the blade 15 does not pierce the epoxy resin 12 of the semi-curing agent or the epoxy resin 12 that has pierced the semi-curing agent is in contact with the idler 5 or the idler 15). Then, by rotating the threaded screw 26 of the fine-tuning mechanism 21, the blade 15 of the wheel cutter 6 can only penetrate without piercing the epoxy resin 12 of the semi-curing agent in contact with the roller 5 or the roller 15. After the blade 15 of the knife 6 reaches the required position, the fine adjustment mechanism 21 is locked by the nut 24 to ensure that the knife feed position remains unchanged during the cutting and slitting process. When the above adjustment process is completed, you can start cutting and slitting until the entire roll of prepreg 3 is cut and slit, and the cylinder 14 runs backwards to the apex, driving the connecting rod 13, the fine adjustment mechanism 21, the closed bearing 22 and the wheel cutter 6 direction Retreat the knife, install the next roll of cured film 3, the cylinder 14 moves forward to the apex, drives the connecting rod 13, the fine adjustment mechanism 21, the closed bearing 22 and the wheel cutter 6 to move forward. Repeat the above process to eliminate the wheel cutter 6 The purpose of the cutting edge 15 is to be crimped and passivated during the cutting and slitting process. The function of the closed bearing 22 is to make the wheel cutter 6 cut the prepreg 3 in a rotating manner and prevent the dust during the cutting process from falling into the bearing and affecting the wheel cutter. 6 Rotation performance. When cutting the prepreg 3 of different thicknesses, only need to adjust the fine adjustment mechanism 21 to keep the blade 15 of the wheel cutter 6 only piercing and not piercing the epoxy resin 12 of the prepreg that is in contact with the roller 5 or the roller 15 can.
[0046] The second method is to use Figure 7 The cross-sectional device of the wheel cutter shown is composed of a cylinder 14, an elastic connecting rod 16, a fine adjustment mechanism 21, an auxiliary positioning mechanism 23, a closed bearing 22, a wheel cutter 6 and a supporting roller 5. The functions and operating principles of the cylinder 14, the connecting rod 13, the fine adjustment mechanism 21, the closed bearing 22 and the wheel cutter 6 are the same as described above. The additional auxiliary positioning mechanism 23 can be fine-tuned back and forth, and its function is to prevent the blade 15 of the wheel 6 from piercing only the epoxy resin 12 and the support of the prepreg that are in contact when cutting the thinner prepreg 3 The distance of the roller 5 is relatively short, and the cutting edge 15 of the wheel cutter 6 collides with the surface of the supporting roller 5 due to vibration during the cutting process, which causes the edge 15 of the wheel cutter 6 to be curled dull. The specific operations are as follows:
[0047] Before the cutting process starts, first move the cylinder 14 forward to the apex, push the connecting rod 13, the fine adjustment mechanism 21, the closed bearing 22 and the wheel cutter 6 to move forward, but the blade 15 of the wheel cutter 6 has not yet reached the required position. Then, the auxiliary positioning mechanism 23 is adjusted so that its surface is in contact with the epoxy resin 2 of the prepreg 3 and locked. Finally, adjust the threaded screw 26 of the fine-tuning mechanism 21 so that the blade 15 of the wheel cutter 6 only penetrates without piercing the epoxy resin 12 of the semi-curing agent in contact with the roller 5. The blade of the wheel cutter 6 15 After reaching the required position, the screw cap 26 is used to lock the threaded screw to lock the fine adjustment mechanism 21 to ensure that the knife feed position remains unchanged during the cutting and slitting process. Since the relative distance between the blade 15 of the wheel cutter 6 and the auxiliary positioning mechanism 23 is constant, the vibration generated by the idler 5 during the cutting process will be transmitted to the elastic connecting rod 16 through the auxiliary positioning mechanism 23 and eliminated, and will not interact with the knife 6 The collision of the blade 15 of the wheel cutter 6 can eliminate the problem of the edge 15 of the wheel cutter 6 colliding with the surface of the idler 5 due to vibration during the cutting process.
[0048] The third method is to use Figure 8 The cross-sectional device of the wheel cutter shown is composed of a cylinder 14, a connecting rod 13, a fine adjustment mechanism 21, a closed bearing 22, a wheel cutter 6, an idler 5, and a collar 30 with lower hardness and good lubricity (such as polytetrafluoroethylene) Vinyl material) composition. The functions and operating principles of the cylinder 14, the connecting rod 13, the fine adjustment mechanism 21, the closed bearing 22 and the wheel cutter 6 are the same as described above. A sleeve ring 30 with lower hardness and good lubricity is slotted into the corresponding surface of the roller 5 and the blade 15 of the wheel 6, the surface of which is flush with the surface of the roller 5. The function of the collar 30 is that when the cutting edge 15 of the wheel cutter 6 pierces the epoxy resin 12 of the prepreg material due to vibration during the cutting of the thin prepreg 3, it is only inserted into the sleeve of the idler 5 with the groove. When the ring 30 collides, due to the low hardness of the collar 30, when the blade 15 of the wheel cutter 6 collides with it, it will only damage the surface of the collar 30 without dulling the edge 15 of the wheel cutter 6, thereby achieving The purpose of preventing the edge 15 of the wheel cutter 6 from being blunt.
