Upper jacking structure, half-slitting machine and half-slitting method

A half-slitting machine, comprising a lower jacking block, a cutting assembly, and an upper jacking structure, wherein the lower jacking block is below the upper jacking block, a clamping space is formed between the lower jacking block and the upper jacking block, and a cutting end of the cutting assembly is movable in a vertical direction and a horizontal direction into and out of the clamping space;

• the upper jacking structure comprises a first linear reciprocating device, an upper jacking block, and an auxiliary tensioner, wherein a movable end of the first linear reciprocating device moves in a vertical direction, and the upper jacking block is provided on the movable end of the first linear reciprocating device;
• the upper jacking block has a first jacking surface symmetrically provided with a first jacking head and a second jacking head at either side of a center line of the first jacking surface, and the first jacking head and the second jacking head are slidingly provided on the first jacking surface in a vertical direction;
• the auxiliary tensioner is located on a side of the upper jacking block adjacent to the first jack, and the auxiliary tensioner has a movable end moving in a vertical direction;
• elastic members respectively connected to the first jacking head and the second jacking head are provided in the upper jacking block, and the upper jacking block has a fully-compressed state, a semi-compressed state, and a non-compressed state;
• when the upper jacking block is in a fully-compressed state, the first jacking head and second jacking head respectively compress the correspondingly connected elastic member and abut against the top surface of the silicon rod;
• when the upper jacking block is in a semi-compressed state, the first jacking head does not compress the correspondingly connected elastic member, the second jacking head compresses the correspondingly connected elastic member, and the second jacking head abuts against the top surface of the silicon rod;
• and
• when the upper jacking block is in a non-compressed state, neither the first jacking head nor the second jacking head compresses the correspondingly connected elastic member and is separated from the top surface of the silicon rod.

A half-slitting method, comprising:

• providing a half-slitting machine comprising:
• a lower jacking block, a cutting assembly, and an upper jacking structure, wherein the lower jacking block is below the upper jacking block, a clamping space is formed between the lower jacking block and the upper jacking block, and a cutting end of the cutting assembly is movable in a vertical direction and a horizontal direction into and out of the clamping space;
• the cutting assembly comprises a vertically provided first mounting plate movable in a vertical direction and a horizontal direction, the first mounting plate is provided with a through hole in a thickness direction, and a wire cutting train and a clamper respectively provided at both ends of the first mounting plate in a thickness direction;
• the cutting end of the wire cutting train encloses a clamping space on the mounting panel, and the holder comprises a clamper that can protrude into the clamping space through the through hole;
• the upper jacking structure comprises a first linear reciprocating device, an upper jacking block, and an auxiliary tensioner, wherein a movable end of the first linear reciprocating device moves in a vertical direction, and the upper jacking block is provided on the movable end of the first linear reciprocating device;
• the upper jacking block has a first jacking surface symmetrically provided with a first jacking head and a second jacking head at either side of a center line of the first jacking surface, and the first jacking head and the second jacking head are slidingly provided on the first jacking surface in a vertical direction;
• the auxiliary tensioner is located on a side of the upper jacking block adjacent to the first jack, and the auxiliary tensioner has a movable end moving in a vertical direction;
• elastic members respectively connected to the first jacking head and the second jacking head are provided in the upper jacking block, and the upper jacking block has a fully-compressed state, a semi-compressed state, and a non-compressed state;
• when the upper jacking block is in a fully-compressed state, the first jacking head and second jacking head respectively compress the correspondingly connected elastic member and abut against the top surface of the silicon rod;
• when the upper jacking block is in a semi-compressed state, the first jacking head does not compress the correspondingly connected elastic member, the second jacking head compresses the correspondingly connected elastic member, and the second jacking head abuts against the top surface of the silicon rod;
• and
• when the upper jacking block is in a non-compressed state, neither the first jacking head nor the second jacking head compresses the correspondingly connected elastic member and is separated from the top surface of the silicon rod;
• performing a cutting-feed process comprising:
• step S1:
• feeding a silicon rod into the clamping space, wherein a second jacking head of an upper jacking block abuts against the top surface of the silicon rod, and a movable end of a first jacking head and/or an auxiliary tensioner abuts against the top surface of the silicon rod, and the jacking head of a lower jacking block abuts against the bottom surface of the silicon rod;
• step S2-1:
• in a case of the first jacking head and the auxiliary tensioner, if both the first jacking head and the movable end of the auxiliary tensioner abut against the top surface of the silicon rod, and the movable end of the auxiliary tensioner is separated from the top surface of the silicon rod in step S1, performing step S3;
• step S2-2:
• wherein step S3 is performed if the first jacking head abuts against the top surface of the silicon rod, and the movable end of the auxiliary tensioner maintains a distance from the top surface of the silicon rod in step S1;
• step S2-3:
• the first jacking head first abuts against the top surface of the silicon rod, and then the movable end of the auxiliary tensioner is separated from the top surface of the silicon rod, and then step S3 is performed if the first jacking head maintains a distance from the top surface of the silicon rod, and the movable end of the auxiliary tensioner abuts against the top surface of the silicon rod in step S1;
• step S3:
• making a cutting end of the cutting assembly enter between the auxiliary tensioner and the first jacking head from below the movable end of the auxiliary tensioner;
• step S4:
• abutting the movable end of the auxiliary tensioner against the top surface of the silicon rod;
• step S5:
• separating the first jacking head from the top surface of the silicon rod;
• step S6:
• making the cutting end of the cutting assembly enter between the first jacking head and the second jacking head from below the first jacking head;
• and
• step S7:
• making the movable end of the first jacking head and/or the auxiliary tensioner abut against the top surface of the silicon rod;
• and
• performing a half-slitting process comprising step S8:
• cutting, by the cutting end of the cutting assembly, from the top end of the silicon rod to the bottom end of the silicon rod until the silicon rod is cut to obtain two silicon rod blanks.