Abstract:
A method and an apparatus for coating a film on a substrate are presented. According to principle of the invention, firstly, a control device controls a first coating device to spray a coating solution onto the substrate. Then, a sensor monitors viscosity data of the coating solution presented between the first coating device and the substrate during movement of the first coating device and sends the viscosity data to the control device, or the sensor monitors viscosity data of the coating solution coated on the substrate and sends the viscosity data to the control device. Lastly, the control device controls a second coating device to spray a coating solution onto the substrate after the first coating device according to signals about the viscosity data from the control device.
Abstract:
A thermoplastic material processing method and system including an integrated melting, pressurizing and dispensing unit and a regulated feed supply system to improve overall performance by only heating the amount of material needed and minimizing the time it is at raised temperatures. The system includes a compact heat exchanger consisting of a plurality of thin heater plates arranged primarily parallel and spaced closely together to form small spaces therebetween. This puts all thermoplastic material in close proximity with the heated surfaces thus improving the overall melting process. The heat exchanger can include heater plates arranged in a radial or fan orientation and a grid of thin heated fins set within a heated enclosure.
Abstract:
An operating station (201) for a bottomer for cross bottom sacks (19), whereby the bottomming device comprises of a gluing station (30), in which the gluing format (4, 4a, 4b), according to which the components of the sack are to be glued (19), is defined by means of glue traces (3), whose structure is determined through the opening and closing of the valves (32) and whereby the gluing station (30) is connected with a computing unit (202), with which the selective opening and closing of the valves (32) can be done, in which the digital target images of the glue traces (3), which define the gluing format (4, 4a, 4b) are stored in the memory (207) of the computing unit (202). Inventive is the display element (203), with which the glue deposition (208) on the sack components (1, 2, 48) can be displayed. An operating method is described, whereby, the invention is that is the digital target images, which define the structure of the glue traces (3,44-47) and which are stored, modified and supplemented in the memory (207) of the computing unit (202), whereby data is transmitted to the operating station (201) through keyboard (205) and/or digital interfaces (209) of the operating station (201).
Abstract:
A web coating apparatus includes a supply roll of web and a wind-up spindle for receiving a discrete length of the web. Fluid is discharged from a coating die in a direction toward the wind-up spindle to coat the web as the web is wound about the wind-up spindle. A variable speed pump directs fluid through the coating die at flow rate that is proportional to the speed of advancement of the web. The apparatus is particularly useful for coating discrete lengths of orthopedic splinting and casting tape that is packaged for single patient use.
Abstract:
A web coating apparatus includes a supply roll of web and a wind-up spindle for receiving a discrete length of the web. Fluid is discharged from a coating die in a direction toward the wind-up spindle to coat the web as the web is wound about the wind-up spindle. A variable speed pump directs fluid through the coating die at flow rate that is proportional to the speed of advancement of the web. The apparatus is particularly useful for coating discrete lengths of orthopedic splinting and casting tape that is packaged for single patient use.
Abstract:
Apparatus, systems (400), and methods for predicting a parameter of dispenser system, dispensing a dispensable material, calibrating a dispenser system are described. Apparatus and systems can use machine learning algorithms based on environmental variables and other factors in a system where the adhesive dispenser (100) is used. Furthermore, apparatus and systems can adjust an operational parameter of the dispenser system based on at least one process parameter. Still further, apparatus and systems can provide one or more settings for one or more dispenser components based on a calibration model. Algorithms (412) can operate on remote or local software and control systems, or as part of an edge computing system or Internet of Things (IoT) system.
Abstract:
This installation for application of a coating product comprises a print head equipped with a plurality of nozzles each controlled by a valve supplied by a product source. A product accumulator, installed on a product circulation circuit, comprises a deformable or movable wall delimiting, at least in part, a first chamber of variable volume supplied with coating product and a second variable-volume chamber supplied with gas, under a predetermined pressure equal to a nominal operating pressure of the print head. The first chamber of variable volume is supplied or purged with coating product due to a difference between an instantaneous coating product ejection rate from the print head and a supply rate to the print head from the source. A control unit adjusts an operation setpoint value of the source as a function of the difference between instantaneous ejection flow rate and supply flow rate, to reduce this difference.
Abstract:
Techniques herein include systems and methods for dispensing liquids on a substrate with real-time coverage control and removal control. Techniques also encompass quality control of dispense systems. Systems and methods enable visual examination of liquids progressing on a surface of a substrate. This includes capturing and/or examining stroboscopic images of movement of a given liquid on a working surface of a substrate, and then generating feedback data for modifying a corresponding dispense. Dispenses can be modified by increasing/decreasing a dispense rate and increasing/decreasing a rotational velocity of a substrate. Feedback can be generated by automated and/or manual analysis of real time progression as well as post-process analysis of collections of images.
Abstract:
A dispensing unit (100) for controlling flow of a substance (101) is disclosed. The dispensing unit (100) comprises a nozzle (102) and a plug (110). The nozzle (102) comprises a channel (104) that comprises a first portion (102) and a second portion (192), communicatively coupled with the first portion (190). The first portion (102) of the channel (104) has a symmetry axis (130). The second portion (192) of the channel (104) comprises an outlet (122) that is offset relative to the symmetry axis (130) of the first portion (190) of the channel (104). The dispensing unit (100) further comprises a plug (110) that comprises a wall (112) and a first aperture (116), which penetrates the wall (112) through an outer surface (114) of the wall (112).
Abstract:
An applicator for dispensing adhesive is disclosed. The applicator includes a manifold, at least one dispensing module coupled to the manifold, a supply channel configured to contain at least a portion of the adhesive, a recirculation channel configured to contain at least a portion of the adhesive, and a recirculation pump assembly connected to the manifold. The recirculation pump assembly includes an inlet in fluid communication with the recirculation channel, an outlet in fluid communication with the supply channel, a gear assembly, and a drive motor coupled to the gear assembly and operable to pump the adhesive, where the drive motor is configured to operate at an adjustable number of revolutions per minute (RPM). The recirculation pump assembly can be configured to move at least a portion of the adhesive from the recirculation channel to the supply channel, such that a first pressure of the adhesive in the recirculation channel is substantially equal to a second pressure of the adhesive in the supply channel.