Disclosed herein, amongst other things, are various conversion structures for use in a molding system (100, 200). A non-limiting embodiment of the conversion structure includes a standard mold receiver (140, 157) and a mold conversion module (151A, 151B, 151C, 251A, 251B, 251C, 251D, 251E, 251F, 152A, 152B, 152C, 170A, 170B, 170C). The standard mold receiver (140, 57) and the mold conversion module (151A, 151B, 151C, 251A, 251B, 251C, 251D, 251E, 251F, 152A, 152B, 152C, 170A, 170B, 170C) are configured to cooperate, wherein the mold conversion module (151A, 151B, 151C, 251A, 251B, 251C, 251D, 251E, 251F, 152A, 152B, 52C, 170A, 170B, 170C) is receivable in the standard mold receiver (140, 157) for converting a molding configuration of a mold (120).

The present invention relates to a packaging machine having a thermoforming station, a sealing station and/or a cutting device, wherein at least one of said stations or the cutting device have a lifting table having a lifting device.

A mold clamping device for an automatic mold opening and closing machine is used to clamp or release an upper mold which has a pair of wings. The mold clamping device is provided with two pressure cylinder units located at two lateral surfaces of the mold mounting unit, two pivot units pivoted to the two pressure cylinder units, respectively, and two clamping members pivotally disposed between the pressure cylinder units and the pivot units. When the first piston is in the first position, the clamping member will be rotated an angle to disengage the inner portion from the wing of the upper mold, and when in the second position, the piston will drive the clamping member to rotate an angle in a reverse direction, so that the wing of the upper mold is clamped between the inner portion and the bottom surface of the mold mounting unit.

A tool changing device of a work station in a thermoform packaging machine allows a tool insert to be removed from the work station laterally relative to a working direction of material conveyed through the work station. A position of the tool insert is moveable to a position above a chain guide on at least one side to allow the tool insert to be removed from the work station above the chain guide.

On a foam plastics molding machine, a molding unit, defined by a mold and an interface frame equipped with a number or quantity of plastic molding material and operating fluid inlets, is loaded into a raised window in a fixed frame of the machine by positioning the molding unit in a fixed position on a trolley; positioning the trolley astride a fixed platform; raising the platform so that vertical ribs on the interface frame slidably engage corresponding vertical guides forming part of the machine and on a level with the window; connecting the guides to the ribs; and moving the guides towards the window.

An anti-falling protection device for an automatic mold opening and closing machine is used on a mold mounting unit to secure or release an upper mold with a pair of wings, and is provided with a movable member movably disposed on the mold mounting unit, two protection members movably provided along two lateral surfaces of the mold mounting unit, a power unit which extends and retracts between a first position and a second position, and the connecting member connected between the power unit and the movable member. When in the first position, the power unit drives the two protection members to move toward the power unit and make the protection members stop beneath the wings, and when in the second position, the piston drives the two protection members to move away the wings of the upper mold.

A mold clamping device for an automatic mold opening and closing machine is used to clamp or release an upper mold which has a pair of wings. The mold clamping device is provided with two pressure cylinder units located at two lateral surfaces of the mold mounting unit, two pivot units pivoted to the two pressure cylinder units, respectively, and two clamping members pivotally disposed between the pressure cylinder units and the pivot units. When the first piston is in the first position, the clamping member will be rotated an angle to disengage the inner portion from the wing of the upper mold, and when in the second position, the piston will drive the clamping member to rotate an angle in a reverse direction, so that the wing of the upper mold is clamped between the inner portion and the bottom surface of the mold mounting unit.

An anti-falling protection device for an automatic mold opening and closing machine is used on a mold mounting unit to secure or release an upper mold with a pair of wings, and is provided with a movable member movably disposed on the mold mounting unit, two protection members movably provided along two lateral surfaces of the mold mounting unit, a power unit which extends and retracts between a first position and a second position, and the connecting member connected between the power unit and the movable member. When in the first position, the power unit drives the two protection members to move toward the power unit and make the protection members stop beneath the wings, and when in the second position, the piston drives the two protection members to move away the wings of the upper mold.

The present disclosure relates to a mould for moulding a curved part having a large dimension. The mould comprises a first portion, a second portion, bearing devices and slide zones located between the first portion and one of the bearing devices, and between the second portion and the other of the bearing devices. The mould allows the first portion and the second portion to slide horizontally while the bearing devices apply a vertical pressure thereto.

A mold locking mechanism for a hydraulic press contains: a bottom plate through which a pull stud is inserted. The pull stud includes a shank and multiple defining rings, and the bottom plate further includes a clamper and a drive device. The clamper includes a pair of rotatable arms. At least one resilient element is defined between the pair of rotatable arms. When the clamper is in a clamping state, the at least one resilient element forces the pair of rotatable arm to move close to each other, and a respective one defining ring does not pass across a gap of the pair of rotatable arms. The drive device drives the pair of rotatable arms to rotate to switch the clamper to be in an unclamping state. The respective one defining ring moves across the gap after the pair of rotatable arms move away from each other.