Abstract: A mold element for vulcanizing all or part of a tire tread intended to accept studs for driving on ice. The mold element comprises a molding surface able to mold all or part of the tread surface of this tread. The mold element comprises an insert added into the mold element. The insert comprises an insert body intended to be fixed into the mold element, a rod intended for molding into the tread a cavity that is capable of accepting a stud, this rod being fixed removably to the insert body, marking means able to mold a pattern on the tread near the stud. The marking means are fixed removably to the insert body by fixing means.

Abstract: A molding element for a tire mold manufactured from a metallic powder fused together layer by layer. The molding element contains a first surface intended to mold all or part of a tread surface of the tire and a second surface opposite to the first surface and intended to be in contact with another part of the mold. The thickness (E) of the molding element is between 1 and 6 millimeters. The molding element overall has a density greater than or equal to 98%. The molding element also contains at least one first porous area extending into the thickness of this molding element, this first porous area having a plurality of pores allowing air to pass between the first surface of the molding element and the second surface thereof.

Abstract: A segmented mold operator includes a main frame fixed to an upper cavity part of a tire press cavity and a control plunger with an axially movable cylinder rod that is configured to apply a squeeze pressure to the tire press cavity. A rotatable lock ring is rotatably coupled about an end of the cylinder rod and axially movable therewith. The lock ring includes a plurality of teeth radially arranged thereon to interface with a mold ring adapter via a bayonet connection. A lock ring frame is independent from the rotatable lock ring and is separated therefrom along the cylinder rod. A locking plunger is configured to selectively engage the rotatable lock ring to thereby prevent rotation of the rotatable lock ring. An electronic lock sensor is configured to electronically sense an axial position of the lock rod.

Abstract: In a mold mounting platen for an injection molding machine, at least one of a mold mounting member and a clamping force transmission member constituting the mold mounting platen has a central bearing surface in a central portion thereof and a peripheral bearing surface outside the central bearing surface. The amount of protrusion of the central bearing surface is larger than that of the peripheral bearing surface.

Abstract: A vulcanizing mold for molding and vulcanizing a tire, comprising a molding surface extending circumferentially in the mold, and comprising two end strips of patterns arranged respectively close to two edges of the molding surface and at least one intermediate strip of patterns positioned between the two end strips of patterns. At least one end strip comprises patterns belonging to a first pattern type and the patterns of the first pattern type have a width which is less than the width of the patterns belonging to the other pattern types of the end strip, and the patterns of the first pattern type are grouped at least in twos on first segments of the mold. The patterns of the end strip not belonging to the first pattern type belong to second segments, each second segment comprising just one pattern of the said end strip.

Abstract: Provided are a tire vulcanizer and a method for transporting or packaging the same whereby, even in cases where the overall height direction dimension of the vulcanizer exceeds size limits for domestic transportation or export packaging, the vulcanizer can easily clear said limits and be transported or packaged. A tire vulcanizer comprising tie rods extending upward from a base plate, said tie rods receiving squeezing force applied to a bolster plate and a top mold when vulcanizing a tire and guiding lifting/lowering of the bolster plate and the top mold when opening and closing the top mold. In such a tire vulcanizer, the tie rods are configured so as to be vertically dividable into at least two or more sections at a position in the length direction thereof.

Abstract: A lubricating system indirectly applies a bladder release agent to a green tire and cures the green tire in a tire curing machine. The system includes a deposition device and a curing bladder. The deposition device directly applies bladder release agent on to a deposition bladder. The deposition bladder is inflated within the green tire in order to deposit the bladder release agent on to an inner surface of the green tire. The curing bladder subsequently receives the green tire with bladder release agent deposited therein and cures the green tire.

Abstract: A fixed platen of an injection molding machine is constituted by a mold mounting portion, a tie bar support portion disposed to be spaced apart from the mold mounting portion, and a load transmitting portion that connects the mold mounting portion with the tie bar support portion. Furthermore, the load transmitting portion is constituted by a cross-shaped connecting portion, and an extension connecting portion that extends along the outer circumferential portion of the mold mounting portion.

Abstract: The invention relates to a molding element for a mold for a tire comprising a tread provided with a plurality of blocks. Each block comprises a contact surface intended to come into contact with a road surface during running. The molding element also comprises a molding surface for molding the contact surfaces of the blocks. The molding surface comprises a plurality of ribs intended to mold fine grooves in the blocks. These ribs have a height of between 0.005 and 1 mm, a width of between 0.01 mm and 0.3 mm and the pitch (P) of the ribs is between 0.1 and 2 mm. The molding surface comprises at least one rib-free measurement zone able to accept measurement means. This measurement zone has the overall shape of a disc the diameter of which is greater than 3 mm.

Abstract: Extrusion-to-sheet production line and method comprise first and second rolls set to a predetermined gap through which a continuously-extruded sheet of molten plastic material passes to calender the sheet to a predetermined thickness. The sheet then passes through a nip formed between the second roll and a continuous belt looped around a third roll and a fourth roll spaced from one another. The belt comprises an embossing pattern of optical element shapes that is an inverse pattern of optical element shapes to be embossed at a first major surface of the sheet. The sheet remains in contact with the second roll until the sheet passes through the nip, where the pattern of optical element shapes on the belt is embossed into the first major surfaces of the sheet. Downstream of the third roll is a flat cooling area through which the belt passes while the first major surface of the sheet is still in contact with the embossing pattern on the belt.

Abstract: A pore-free tire segmented mold pattern block (100) and a segmented mold are provided. The pore-free tire segmented mold pattern block (100) is used for forming a tire segmented mold. Also disclosed is a cleaning method for the pore-free tire segmented mold pattern block (100) and the segmented mold. When the mold is cleaned, the exhaust channel (20) is used as a cleaning channel, and the axial exhaust holes (27) of the exhaust channel are used as an entrance for a cleaning medium.

Abstract: The invention relates to a system for producing conveyor belts having a rope core, for example a wire rope core, comprising at least one rope unwinding unit having a plurality of rope reels, from which the ropes to be embedded in the conveyor belt are unwound, a combining unit in which the ropes, which are under tensile stress and run in the longitudinal belt direction parallel to one another in one plane, are combined with one or more raw rubber webs to form a raw belt, and a vulcanization press in which the raw belt is vulcanized by means of pressure and/or heat forming the conveyor belt. Said system is characterized in that the rope unwinding unit is designed as a rope unwinding and tensioning unit, in which each rope is individually tensioned to the required production tension.

Abstract: This invention relates generally to an apparatus for rotationally casting a portion of a tire, and, more specifically, to an apparatus that has a floating alignment mechanism that allows a portion of a mold to move in the radial direction of the tire, which is at least partially formed by the mold, allowing the molding apparatus to omit the use of tie bars. The mechanism may comprise two set of needle roller bearings that are orthogonally arranged to allow radial movement of a portion of a mold.

Abstract: A method of automatically de-molding a tread from a mold is provided utilizing an automatic de-molding apparatus. The automatic de-molding device utilizes at least one anchoring member that is inserted into the mold and automatically secures the tread to the de-molding apparatus wherein the mold is mechanically removed from the mold.

Abstract: Vulcanizing device with radially mobile segments comprising: a bottom plate supporting a bottom shell for molding a tire sidewall, an axially mobile top plate supporting a top shell for molding a tire sidewall, an axially mobile closure ring comprising an inclined interior face, a plurality of circumferentially arranged adjacent segments of which the interior radial faces comprise linings for molding the tread of the tire and of which the inclined exterior radial faces are able to collaborate with: first means of coupling with the closure ring which are produced in such a way that the axial movements of the closure ring involve a radial movement of the segments, and second means of coupling the segments to the top plate which are able to connect the segments to the top plate and to allow their radial movement, the said second means of coupling being adjustable on the circumference of the top plate.

Abstract: A position detector detects the position of a die opening/closing device on a machine frame of an injection molding machine. A shielding object is provided between the position detector and an oil scattering source of a mechanical section of the injection molding machine.

Abstract: An adjustment mechanism for a movable platen of an injection molding machine is provided with a push bolt, configured to apply a force to push up the movable platen against a gravitational force, and a pull bolt, configured to apply a force to draw in the movable platen in the direction of gravity. The movable platen is adjusted by regulating its height above a base of the molding machine in a plurality of positions at different distances from a fixed platen.

Abstract: The invention relates to a belt run control device of an endless belt (2) revolving over at least one cylindrical roller (1), wherein the rollers (1) are each designed as deflection rollers around which the belt (2) is wrapped, and wherein for the purpose of tensioning the belt (2) at least one cylindrical roller (1) is preloaded on both sides by way of elastic elements (3) designed to be equally acting in order to center the belt (2) relative to the roller (1), and wherein a position measuring device is provided in the region of the belt (2), wherein an adjusting element (5) that can be actuated using a pneumatic piston-cylinder unit (4) is disposed on at least one side of the roller (1), characterized in that the adjusting element (5) is designed to apply a force that acts additively or subtractively with respect to the preloading force of at least one of the elastic elements (3).

Abstract: A closing unit of an injection molding machine includes a moveable mold mounting plate and a fixed mold mounting plate, a hydraulic pressure mechanism for building up a closing pressure, at least one column provided with an external profile, and at least one two-part nut which is provided with an internal profile and the half members of which are coupled in motionally opposite relationship. The at least one column in the closed condition of the two-part nut is lockable by a positively locking relationship between the internal profile and the external profile relative to the moveable mold mounting plate or relative to the pressure mechanism. There is also provided an electric drive for opening and closing the two-part nut.

Abstract: A locating ring has a metal body with a ring shape and having a perimeter surface facing radially outward, a center axis defined by the body, a mounting face, and a locating face spaced from and facing opposite the mounting face along the axis. The locating ring has a guard connected to the body and made of a material that is softer than the metal body. The guard is sized to be radially within the perimeter wall and to project axially beyond the locating face.