摘要:
A sealing gun (31) of a sealing application device for controlling a flowrate of a sealing material in accordance with a magnitude of an input signal is secured to the forward end of an arm of a robot. The strength of a signal being input to the sealing application device (30) is increasingly or decreasingly controlled in conformity with the increasing or decreasing control of a moving speed of the sealing gun. The moving speed (TSA) of the sealing gun is proportional to the flowrate of the sealing material from the sealing gun, so that a width of bead becomes uniform regardless of the moving speed (TSA) of the sealing gun.
摘要:
A sealing gun (31) of a sealing application device for controlling a flowrate of a sealing material in accordance with a magnitude of an input signal is secured to the forward end of an arm of a robot. The strength of a signal being input to the sealing application device (30) is increasingly or decreasingly controlled in conformity with the increasing or decreasing control of a moving speed of the sealing gun. The moving speed (TSA) of the sealing gun is proportional to the flowrate of the sealing material from the sealing gun, so that a width of bead becomes uniform regardless of the moving speed (TSA) of the sealing gun.
摘要:
Uniformity of hot melt coatings on thermally sensitive plastic and other webs (1) is maintained by use of a silicone or other rubber-like web back-up roll (R₁) the dimensional stability of which is maintained during hot melt coating of the webs (1) by a heat-conducting idler roll (R₂) directly contacting the back-up roll (R₁) temperature and a heat transfer source (H) for temperature deficiencies on the silicone roll surface (R₁), aiding constant nozzle(N)-to-web (1) spacing (B) irrespective of temperature variations and line speeds. Provision is also made for the introduction of chilling, if required.
摘要:
Uniformity of hot melt coatings on thermally sensitive plastic and other webs (1) is maintained by use of a silicone or other rubber-like web back-up roll (R₁) the dimensional stability of which is maintained during hot melt coating of the webs (1) by a heat-conducting idler roll (R₂) directly contacting the back-up roll (R₁) temperature and a heat transfer source (H) for temperature deficiencies on the silicone roll surface (R₁), aiding constant nozzle(N)-to-web (1) spacing (B) irrespective of temperature variations and line speeds. Provision is also made for the introduction of chilling, if required.
摘要:
Apparatus for preparing and dispensing thermoplastic resin has a conveyor with a chamber provided with heating elements, a conveyor screw mounted in the chamber and connected to a drive motor, a resin inlet and a resin outlet. To ensure the intended continuous dispensing of the resin even during intermittent operation, a control device is provided having inputs connected to a resin pressure sensor, a conveyor speed of rotation sensor and a resin temperature sensor. Intended values for the conveyor speed, resin pressure and resin temperature are supplied to the control device, which regulates the pressure during interruption of the dispensing of the resin and effects a speed regulation or a pressure regulation with a superimposed speed regulation during dispensing of the resin. For plasticizing of the resin, which is supplied in solid, preferably granular form, and since the conveyor geometry is designed to produce minimum friction, external heating by the heating elements is required. The temperature at the outlet is monitored by the temperature sensor and regulated by the control device.