A turning device, for manufacturing wind turbine blades and turning moulds relative to each other, having a base, a rotational part movable relative to the base on an rotational axis, a first linear actuator with first and second ends, the first end attaching to the base, and the second end attaching to the rotational part at a first anchor point on a first turning axis, and a second linear actuator having first and second ends, the first end attaching to the base, and the second end attaching to the rotational part at a second anchor point on a second turning axis. The first turning axis is a first distance from the rotation axis and is moved on a first arc on the rotation axis, and the second turning axis is a second, different distance from the rotation axis and is moved along a second arc on the rotation axis.

The disclosure includes a mold assembly, comprising a machinable first mold blank comprising a first hinge end and a first handle end located opposite the first hinge end, and a machinable second mold blank comprising a second hinge end and a second handle end located opposite the second hinge end. The first hinge end may comprise a first hinge slot, and the second hinge end may comprise a second hinge slot, both hinge slots located on inner surfaces of their respective mold blanks. The mold assembly may comprise a first hinge bracket detachably coupled to the first hinge slot and a second hinge bracket detachably coupled to the second hinge slot. A hinge pin may be detachably coupled to the first hinge bracket and the second hinge bracket, and the first mold blank and the second mold blank may be configured to rotate about the hinge pin.

A turning device, for manufacturing wind turbine blades and turning moulds relative to each other, having a base, a rotational part movable relative to the base on an rotational axis, a first linear actuator with first and second ends, the first end attaching to the base, and the second end attaching to the rotational part at a first anchor point on a first turning axis, and a second linear actuator having first and second ends, the first end attaching to the base, and the second end attaching to the rotational part at a second anchor point on a second turning axis. The first turning axis is a first distance from the rotation axis and is moved on a first arc on the rotation axis, and the second turning axis is a second, different distance from the rotation axis and is moved along a second arc on the rotation axis.

An automatic opening and closing device for a mold assembly includes a base, a pivot seat, a first extensible unit, an upper mold mounting unit, two shafts, a second extensible unit, a left arm and a right arm. The first extensible unit can move the upper mold mounting unit downward to clamp or release the mold, and the second extensible unit is used to move the pivot seat between two positions. When the pivot seat is in a first position, the upper mold mounting unit can be lowered down to secure or release the mold by the first extensible unit, when in the second position, the upper mold mounting unit and the mold can be rotated an angle, to perform opening or closing of the mold assembly.

An automatic opening and closing device for a mold assembly includes a base, a pivot seat, a first extensible unit, an upper mold mounting unit, two shafts, a second extensible unit, a left arm and a right arm. The first extensible unit can move the upper mold mounting unit downward to clamp or release the mold, and the second extensible unit is used to move the pivot seat between two positions. When the pivot seat is in a first position, the upper mold mounting unit can be lowered down to secure or release the mold by the first extensible unit, when in the second position, the upper mold mounting unit and the mold can be rotated an angle, to perform opening or closing of the mold assembly.

The disclosure includes a mold assembly, comprising a machinable first mold blank comprising a first hinge end and a first handle end located opposite the first hinge end, and a machinable second mold blank comprising a second hinge end and a second handle end located opposite the second hinge end. The first hinge end may comprise a first hinge slot, and the second hinge end may comprise a second hinge slot, both hinge slots located on inner surfaces of their respective mold blanks. The mold assembly may comprise a first hinge bracket detachably coupled to the first hinge slot and a second hinge bracket detachably coupled to the second hinge slot. A hinge pin may be detachably coupled to the first hinge bracket and the second hinge bracket, and the first mold blank and the second mold blank may be configured to rotate about the hinge pin.

The disclosure includes a mold assembly, comprising a machinable first mold blank comprising a first hinge end and a first handle end located opposite the first hinge end, and a machinable second mold blank comprising a second hinge end and a second handle end located opposite the second hinge end. The first hinge end may comprise a first hinge slot, and the second hinge end may comprise a second hinge slot, both hinge slots located on inner surfaces of their respective mold blanks. The mold assembly may comprise a first hinge bracket detachably coupled to the first hinge slot and a second hinge bracket detachably coupled to the second hinge slot. A hinge pin may be detachably coupled to the first hinge bracket and the second hinge bracket, and the first mold blank and the second mold blank may be configured to rotate about the hinge pin.