Answer question card pencil semi-automatic pencil sharpener
A pencil sharpener and semi-automatic technology, used in sharpening devices, printing, office supplies, etc., can solve the problems of small particles falling off the edge of the lead core, incomplete information strips, uneven edges, etc.
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[0062] Example: see Figure 1 to Figure 13 .
[0063] A semi-automatic pencil sharpener for answering question cards includes a frame 1, a chain transmission device 2, a plurality of clamps, a moving assembly 5, a front and rear cutting assembly 6 and an upper and lower cutting assembly 7.
[0064] The chain transmission device 2 includes a front support 211, a rear support 212, a front right sprocket 221, a front left sprocket 222, a rear right sprocket 223, a rear left sprocket 224, a right chain 231, a left chain 232, and a chain servo motor 24; the front support 211 and the rear support 212 are respectively fixedly connected to the frame 1; the front right sprocket 221 and the front left sprocket 222 are respectively fixed on the front sprocket shaft 25, between the front sprocket shaft 25 and the front support 211 The rear right sprocket 223 and the rear left sprocket 224 are respectively fixed on the rear sprocket shaft 26, forming a rotating pair between the rear sprocket s...
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