摘要:
The invention relates to a method for producing a two-chamber tube with a dividing wall (9) that extends into the tube head. This method comprises the following steps: a) inserting a dividing wall (9) into the gap (8) of an auxiliary mandrel (6); b) sliding a prefabricated tube pipe body (11) onto said auxiliary mandrel (6), which has been fitted with the dividing wall (9); c) axially transferring the blank (12) produced in step b) from the auxiliary mandrel (6) onto a pressing mandrel (2); d) adding a molten portion of a plastic material in a female mold (3); e) conveying the pressing mandrel (2) with the blank (12) into the female mold (3) with the portion of a plastic material in an axial position, in order to mold a tube head onto the blank (12); f) pressing the material portion between the pressing mandrel 92) and the female mold (3) in order to form a tube head, at the same time producing a solid connection with the pipe body (11) and with the section of the dividing wall (9) that is located in the area of the tube head by closing the mold; g) opening the mold, removing the pressing mandrel (2) and withdrawing the finished two-chamber tube. The invention also relates to a device for carrying out the method.
摘要:
The invention relates to a multi-chamber tube with at least two chambers and a tube head, with closable withdrawal apertures corresponding to the number of chambers and consisting of an accumulation of at least two separately produced tubular pipes arranged parallel to one another with a rounded external periphery common to all tubular pipes. According to the invention it comprises an integral tube head produced by pressed molten portions and common to all tubular pipes and containing the partition walls corresponding to the number of tubular pipes and connected thereto, molten material simultaneously flowing around the edge ends of the tubular members which are rigidly connected to one another after curing.
摘要:
The data acquisition device comprises a projecting device for projecting the light emitted by a radiation source onto a section of a marked surface, and an optical unit for recording and reproducing the reflected light on a screen sensor converting the reflected light into a sequence of electronic signals. Furthermore, the data acquisition device has a motion detector for generating synchronizing signals in the presence of a movement parallel with the marked surface, as well as a signal processing unit converting the signals of the screen sensor into information packets containing independently of the character code the alphanumerical, graphic or pictured information of a freely selectable part of the marked surface, and recallably storing such information packets in a memory unit.
摘要:
The invention relates to a method for the production of tubes from a prefinished pipe element, by pressing of heated plastic blanks to form a multi-layer tube head, with simultaneous bonding of the tube head to the pipe element. According to the invention, each layer of the multi-layer tube head is produced individually, by pressing of a newly introduced plastic blank in each case, where the next blank for the subsequent layer is not introduced and pressed until after the layer previously produced is stable in shape. The invention also relates to a tube made of a pipe element (1) having at least one plastic layer, and a multi-layer tube head (2) molded on by pressing heated plastic blanks, with a neck part (8) opening out centrally in a dispensing opening (9) with an outside thread (11) to screw on a closure cap, where according to the invention, each layer (3, 6, 5) of the multi-layer tube head (2) is pressed in individually, layer by layer, onto the upper end of the pipe element (1).
摘要:
A method for marking an ophthalmic lens with a hydrophobic and/or oil-repellent low surface energy outer layer on a high surface energy substrate or coating. The method consists in: positioning a complementary patterning mask of the desired marking between the lens surface to be marked and an energizing discharge source capable of substantially eliminating the outer layer to as to expose the subjacent high energy substrate or coating. The temporary protective layer has a surface energy higher than that of the outer layer and a thickness less than about 5 nm, and preferably between 2 and 4 nm, thereby enabling the discharge to act on the outer layer through the temporary protective layer.
摘要:
The invention relates to an elastic substantially tubular package for a semi-liquid or pasty extractable by a finger pressure product comprising a skirt, a head and optionally a cap, wherein said skirt is formed from a wound foil and is provided with a longitudinal weld seam formed by the overlapping of the edges thereof and the head is fixed to the circumference of the skirt end and forms an oval cross-section at the level of the skirt fixing area. The inventive package is characterised in that the end of the longitudinal weld seam contacting the head is located in or near an area where the radius of curvature of the oval cross-section is minimal.
摘要:
A method for marking an ophthalmic lens with a hydrophobic and/or oil-repellent low surface energy outer layer on a high surface energy substrate or coating. The method consists in: positioning a complementary patterning mask of the desired marking between the lens surface to be marked and an energizing discharge source capable of substantially eliminating the outer layer to as to expose the subjacent high energy substrate or coating. The temporary protective layer has a surface energy higher than that of the outer layer and a thickness less than about 5 nm, and preferably between 2 and 4 nm, thereby enabling the discharge to act on the outer layer through the temporary protective layer.
摘要:
The invention relates to a method for producing tubular containers with an open filling opening and with an end that is provided with a seal. The inventive method comprises the following steps: separately producing a preform with a neck with definitive dimensions and a tubular body with smaller dimensions than the definitive form, the tubular body containing the open filling opening; fixing the preform that is produced to a drawing head by its neck and subjecting it to at least one partial heating process; introducing the heated preform that is attached to the drawing head into the inside of a multi-part closed blow mold in such a way that the open filling opening is air-tightly held at the lower end of the blow mold; fitting a blow nozzle to the filling opening of the preform.
摘要:
The invention concerns a support of the type comprising at least a first base (13), and, borne by the latter, for maintaining such an optical lens (10) at its edge (11), at least three support pins (14A, 14B). The invention is characterized in that the base comprises, for its own support, a plane support surface (16) whereof the peripheral outline (P1) is globally circular, its radial dimension (D1) along a particular radius (R) of said support surface (16) is at least equal to its axial dimension (D2) perpendicularly to the plane thereof. The invention is particularly useful for maintaining an optical lens in a processing apparatus using spin coating technique.
摘要:
A process for producing multi-layered tubular bodies, wherein each tubular body has at least one dividing wall extending along its length to form adjacent longitudinal chambers. The process comprises fastening a dividing strip to a foil ribbon in a parallel arrangement to the foil ribbon, and joining the longitudinal edges of the foil ribbon together to form an endless tube. This tube can then be cut to produce multi-layered tubular bodies.