B31F1/0077

Sheet-like member forming method and apparatus

An insulating sheet is pushed into a first mold portion, and formed in a first shape along a shape of the first mold portion. The insulating sheet of the first shape inside the first mold portion is pushed into the second mold, and is deformed by a front mold portion, a front guide portion, and a bent convex portion of the front mold, and a rear mold portion and a rear guide portion of the rear mold, and is formed in a second shape. The insulating sheet of the second shape is inclined such that the front end portion overlaps the rear end portion in a first direction, and the width in a front-rear direction becomes narrower toward the front and the rear end portions. The insulating sheet inserted in the second mold and formed in the second shape is inserted into a slot of a stator core.

METHOD FOR MANUFACTURING MOLDED BODY

A method for manufacturing a molded body, includes a deposition step of depositing a mixture containing fibers and a starch in air; a moisturizing step of applying water to the mixture; and a molding step of forming a molded body by heating and pressurizing the mixture to which the water is applied. In the method described above, the starch has a value of 100 or less, the value being represented by the following expression (I) and being obtained by measurement performed in accordance with the following measurement methods (1) to (4) using a rapid visco analyzer (RVA).


1,0007T9(I)

In the expression (I), T represents a gelatinization peak temperature ( C.) of the starch, and h represents a setback viscosity (mPa.Math.s) thereof, and the measurement is performed such that (1) after a water suspension containing the starch at 25 percent by mass is charged in the RVA as a measurement sample, the temperature thereof is increased to 50 C. and then maintained for one minute; (2) the temperature of the measurement sample is increased from 50 C. to 93 C. over 4 minutes and then maintained at 93 C. for 7 minutes; (3) the temperature of the measurement sample is decreased from 93 C. to 50 C. over 4 minutes and then maintained at 50 C. for 3 minutes; and (4) in the above (2) and (3), a rotational speed of a measurement paddle of the RVA is set to 960 rpm for 10 seconds after the start of the viscosity measurement and is then set to 160 rpm 10 seconds thereafter.

METHOD FOR MANUFACTURING MOLDED BODY

A method for manufacturing a molded body, includes a deposition step of depositing a mixture containing fibers and a starch in air; a moisturizing step of applying water to the mixture; and a molding step of forming a molded body by heating and pressurizing the mixture to which the water is applied, and the starch has a value of 2,000 to 10,000, the value being represented by the following expression (I) and being obtained by measurement performed in accordance with the following measurement methods (1) to (4) using a rapid visco analyzer (RVA).


5,00030T.sub.190(T.sub.2T.sub.1)+2.sub.115.sub.2(I)

In the expression (I), T.sub.1 represents a gelatinization start temperature ( C.), T.sub.2 represents a gelatinization peak temperature ( C.), .sub.1 represents a gelatinization peak viscosity (mPa.Math.s), and .sub.2 represents a trough viscosity (mPa.Math.s), and the measurement is performed such that (1) after a water suspension containing the starch at 25 percent by mass is charged in the RVA as a measurement sample, the temperature thereof is increased to 50 C. and then maintained for one minute; (2) the temperature of the measurement sample is increased from 50 C. to 93 C. over 4 minutes and then maintained at 93 C. for 7 minutes; (3) the temperature of the measurement sample is decreased from 93 C. to 50 C. over 4 minutes and then maintained at 50 C. for 3 minutes; and (4) in the above (2) and (3), a rotational speed of a measurement paddle of the RVA is set to 960 rpm for 10 seconds after the start of the viscosity measurement and is then set to 160 rpm 10 seconds thereafter.

METHODS FOR MAKING PAPER OR BOARD, A BOARD TRAY AND PULP PARTICLES COATED WITH FOAMABLE POLYMER FOR USE IN THE SAME

The invention concerns a method of manufacturing paper or board, the paper or board obtained by the method, and a method of producing a tray from the board. In a fibrous stock for papermaking is incorporated an amount of polymer coated fibrous particles, which even have a foaming agent such as moisture contained therein. A web is formed from the fibrous stock on a forming fabric of a paper or board machine, followed by pressing and drying to a finished paper or board. As the paper or board is sufficiently heated the foaming agent within the particles evaporates, causing expansion and foaming of the polymer coating, which adds to malleability of the board as it is moulded into a shaped article such as a board tray. The invention even covers production of doubly coated fibrous particles for use in said methods, the inner coating layer being of a foamable polymer with a higher melt flow rate and the outer coating layer being of a non-foaming polymer of a lower melt flow rate.

PULP-MOLDED PAPER CONTAINER
20200307855 · 2020-10-01 ·

A pulp-molded paper container is introduced herein, which comprises a top cover body, a bottom box body and at least one pivot portion. The top cover body comprises a top sidewall having an inner surface. The bottom box body comprises a bottom sidewall having an outer surface and a recess portion. A plane-to-plane contact is constituted with occurrence of a static friction force, between the inner surface of the top sidewall and the outer surface of the bottom sidewall, by way of an elastic deformation effect of the recess portion under a manner while the bottom box body and the top cover body mutually matched in a closed manner, whereby the static friction force can make a tight retention occurring along between the top cover body and the bottom box body.

Method and apparatus for pleating or shaping a web

A method and apparatus for pleating or otherwise shaping a web are described herein. The method and apparatus may have numerous applications. In some embodiments, the method and apparatus are used in the formation, filling, and sealing of unit dose packages for consumer products. A method and apparatus for forming sealing two moving webs together, which webs have portions that are non-planar are also described herein.

PROCESS FOR MAKING A PACKAGE FOR FOODSTUFF PRODUCTS
20190381717 · 2019-12-19 · ·

A process for making a hermetically sealed package, which includes forming a sheet of wrapping made of plastic material, in particular having a thickness of less than or equal to 140 m. The process envisages: forming on the sheet a first, hollow, portion and a second, perimetral, portion, which delimits at least partially the first portion; inserting the product into the hollow portion obtained in the sheet of wrapping; applying a second sheet of wrapping in contact with the perimetral portion so as to close the hollow portion with the product inside; and welding the second sheet on the first sheet along the perimetral portion. Forming the first sheet includes providing on the second, perimetral, portion a series of pleats of the sheet, which are then sealed.

METHODS AND SYSTEMS FOR PRODUCING PRESSWARE
20240100797 · 2024-03-28 · ·

A system for forming a pressware product from a web of a roll of material includes a positive mold, a negative mold, a heating element, an actuator, a force sensor, and a control system. The positive mold forms a top surface of the pressware product. The negative mold forms a bottom surface of the pressware product. The heating element is coupled to the positive mold or the negative mold. The actuator shifts the positive mold or the negative mold to cut and form the pressware product in a single stroke. The force sensor detects the forming force applied by the actuator, and the control system directs the actuator to adjust the forming force.

Methods and systems for producing pressware
11938699 · 2024-03-26 · ·

A system for forming a pressware product from a web of a roll of material comprises a positive mold, a negative mold, a heating element, an actuator, a force sensor, and a control system. The positive mold forms a top surface of the pressware product. The negative mold forms a bottom surface of the pressware product. The heating element is coupled to the positive mold or the negative mold. The actuator shifts the positive mold or the negative mold to cut and form the pressware product in a single stroke. The force sensor detects the forming force applied by the actuator, and the control system directs the actuator to adjust the forming force.

Automated paper cone shaping and arrangement machine

Systems and methods for an automated paper cone shaping and arrangement machine are disclosed. A paper cone shaping and arrangement machine may comprise a support frame, an actuator, a transport implement, a cone shaping implement, a cone rolling implement, a securing implement, a paper dispensing implement, a support material dispensing implement, an ejector implement, and/or a display. The support frame is configured to provide support for components of the cone machine. The cone shaping implement, cone rolling implement, and/or securing implement may be configured to shape and seal the paper cones. The paper dispensing implement and/or the support material dispensing implement may be configured to dispense material to the cone machine. The ejector implement may be configured to transport paper cones from the cone machine to a storage. The cone machine may be configured to shape a paper-like material into a paper cone comprising a support material disposed therein.