WO2008030102A1 - Method and apparatus for injection and application of a fluid substance - Google Patents

Method and apparatus for injection and application of a fluid substance Download PDF

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Publication number
WO2008030102A1
WO2008030102A1 PCT/NO2007/000310 NO2007000310W WO2008030102A1 WO 2008030102 A1 WO2008030102 A1 WO 2008030102A1 NO 2007000310 W NO2007000310 W NO 2007000310W WO 2008030102 A1 WO2008030102 A1 WO 2008030102A1
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WO
WIPO (PCT)
Prior art keywords
product
dosing unit
dosing
fluid substance
discharge duct
Prior art date
Application number
PCT/NO2007/000310
Other languages
French (fr)
Inventor
Lennart Backlund
Dag H. Gundersen
Original Assignee
Fimtech As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fimtech As filed Critical Fimtech As
Publication of WO2008030102A1 publication Critical patent/WO2008030102A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/002—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the work consisting of separate articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts

Definitions

  • the present invention relates to a method for injection or application of a fluid substance into or onto the outer surface of a product body.
  • the invention also relates to an apparatus for injecting or applying a fluid substance into or onto the outer surface of a product body.
  • a product containing liquids or creams must, as a rule, be packed in an air- and/or watertight packaging.
  • Materials for such packaging are usually fed in from a roll, wrapped around the liquid or cream containing product and joined together to form a sealed packaging using heat welding or glue.
  • the fluid substance may be a cream or the like that is injected into the at least one product body using at least one discharge duct that is passed into the product body and releases a dose of the fluid substance, or that is applied to the outside of the product body in that at least one discharge duct is passed over an outer surface of the product body and applies a dose of the fluid substance onto the outer surface.
  • the at least one product body is in this case made of a material that absorbs the fluid substance applied onto the outer surface.
  • At least one dosing unit comprising the said at least one discharge duct for dosing the at least one fluid substance.
  • the at least one dosing unit is arranged so that it is close to the at least one product body during the injection process or the application process, or a combined injection and application process, and as the at least one fluid substance is injected into or applied onto, or both injected into and applied onto the at least one product body, the at least one dosing unit or tip of the dosing unit's at least one discharge duct and the at least one product body are kept in motion at substantially the same speed.
  • substantially the same speed here is meant that the at least one dosing unit or the tip of a discharge duct on the at least one dosing unit and the at least one product body, at most, can move so much faster than the at least one product body that the at least one product body will, at most, be "outdistanced” by one product body length during the injection or application of the at least one fluid substance.
  • the opposite also applies of course, - i.e., that the at least one product body can "outdistance" the dosing unit or the tip of the dosing unit discharge duct by at most one product body length as the at least one fluid substance is injected or applied.
  • a product body length is the length of a product body in the direction of travel of the product body.
  • the at least one dosing unit is so close to the at least one product body during the injection process or the application process, or the combined injection and application process, that the tip of the dosing unit's at least one discharge duct can extend into the product body for injection or extend over the outer surface of the product body for application. The requirement is thus that the discharge duct reaches the desired position so that injection or application or both can be carried out.
  • both the at least one dosing unit and the at least one discharge duct on the dosing unit move in substantially the same direction as the direction of travel of the product web.
  • the parallel paths may be rectilinear or have different types of curved forms, but will at all times be essentially parallel at the point where injection or application or a combination of the two is carried out.
  • the discharge duct When injecting the at least one fluid substance into the at least one product body or applying the at least one fluid substance onto an outer surface of the at least one product body, or a combination of the two, the following steps are carried out: the discharge duct, optionally the discharge ducts, is/are passed into the product body or passed immediately above the outer surface of the product body when the product body arrives at a predetermined position in relation to the dosing unit; - each discharge duct injects a dose of the at least one liquid substance into the product body or applies a dose of the liquid substance onto the outer surface of the product body; once injection or application of the fluid substance has been carried out, the discharge duct, optionally the discharge ducts, is/are withdrawn.
  • steps are carried out whilst the at least one product body is in motion and at the same time as the movement of the discharge duct, optionally the discharge ducts, is synchronised with the movement of the product body throughout the injection or application process so as to ensure that the discharge duct or discharge ducts come into the right position in relation to the at least one product body for injection or application, or both, of the at least one fluid substance.
  • At least two doses of different liquid substances may also be injected into or applied onto, or injected into and applied onto one product body.
  • the at least two doses can be injected or applied, or injected and applied in steps through at least two different dosing units, or this can be effected through at least two different discharge ducts that are arranged on the same dosing unit.
  • the at least one dosing unit is arranged on a moving mechanism which causes the dosing unit to undergo a continuous cyclic movement, the dosing unit in each cycle moving close to and approximately parallel with the at least one product body and at substantially the same speed as the at least one product body so as to allow injection or application or injection and application of at least one fluid substance to be carried out.
  • one or more dosing units may be stationary whilst the discharge duct or ducts of each individual dosing unit are movably arranged on the dosing unit in such manner that the discharge duct or ducts undergo a continuous cyclic swinging movement back and forth, optionally a continuous, cyclic, linear sideways movement back and forth.
  • the discharge duct or discharge ducts are arranged on a movable dosing head which is movably arranged on the dosing body of the dosing unit. The dosing head may either undergo a continuous cyclic swinging movement back and forth or a continuous, rectilinear, cyclic sideways movement back and forth.
  • a cyclic swinging movement will be most suitable for application processes, since such movement during an injection process where the discharge duct or discharge ducts are passed into the at least one product body, will require a high degree of synchronisation of the movements of the discharge duct or ducts and the at least one product body.
  • the moving mechanism may be configured as a dosing carousel.
  • a dosing unit may move cyclically so that the dosing unit in each cycle moves close to the at least one product body over a distance whilst a dose of one or more fluid substances is injected or applied, or both injected and applied.
  • the moving mechanism and the at least one product body will of course be provided with means that move them.
  • An apparatus is also provided for injection of at least one fluid substance into product bodies or application of at least one fluid substance onto an outer surface of product bodies, or simultaneous injection and application of at least one fluid substance into and onto an outer surface of product bodies, the product bodies forming a product web.
  • the apparatus further comprises at least one moving mechanism comprising at least one dosing unit that is provided with at least one discharge duct for injection or application, or both, of the at least one fluid substance.
  • the at least one moving mechanism is further arranged so that the at least one dosing unit is close to the product web during the injection or application process or a combined injection and application process, and so that the at least one dosing unit, or at least the tip of the at least one discharge duct, and the product web are arranged so that they are in motion at substantially the same speed as the at least one fluid substance is injected into the product body or applied onto an outer surface of the product body.
  • the moving mechanism with the at least one dosing unit is arranged so that the at least one dosing unit, or the tip of the dosing unit discharge duct, essentially moves parallel with the product web over at least a length L whilst the at least one fluid substance is injected into or applied onto, or injected into and applied onto a product body. If injection and application take place simultaneously and in groups, i.e., that groups of two or more subsequent dosing units arranged on the moving mechanism simultaneously inject or apply, or inject and apply at least one fluid substance into or onto two or more product bodies, the length L will also be correspondingly be longer.
  • the length L could also, but not necessarily, be adapted accordingly. It is conceivable that the product web and the dosing unit or dosing units do not move parallel with and close to each other between two steps, and the length L will be divided into two or more intervals instead of being extended.
  • the at least one dosing unit may be provided with one or more chambers for storing one or more types of fluid substances for injection into or application onto the product bodies.
  • the at least one dosing unit can, in one embodiment, comprise two or more discharge ducts for injection or application, or both injection and application of the same fluid substance into or onto one product body.
  • the at least one dosing unit may also comprise two or more discharge ducts for injection or application or both of different fluid substances into or onto one product body.
  • the at least one dosing unit further comprises a dosing body that is provided with means for moving the dosing unit discharge duct and means for dosing the at least one fluid substance.
  • the at least one discharge duct may be arranged on the dosing unit in such manner as to allow the at least one discharge duct to be moved out of and into the dosing unit.
  • the discharge duct may be arranged on the dosing unit in such manner as to allow the discharge duct to be moved in a cyclic, approximately rectilinear back and forth movement in a sideways direction relative to the longitudinal direction of the discharge duct.
  • the discharge duct or discharge ducts may be arranged on the dosing unit in such manner as to allow the discharge duct to be rotated or swung back and forth about an approximately vertical axis of rotation in a cyclic movement.
  • one or more discharge ducts may be arranged on one or more dosing heads that are arranged on the dosing unit dosing body.
  • the dosing head or dosing heads may be movably arranged on the dosing body and be arranged so that it or they swing back and forth in a continuous cyclic movement about a vertical axis, or move back and forth in a sideways continuous cyclic movement.
  • the dosing unit discharge duct or discharge ducts when desirable, can be arranged so as to be able to move out and in relative to the dosing unit.
  • At least one moving mechanism comprising at least one dosing unit may be arranged on either side of the product web, each moving mechanism being arranged so that the dosing units over at least a length L essentially move parallel with and close to the product web with product bodies.
  • two or more moving mechanisms may be arranged on one and the same side of the product web, each moving mechanism comprising at least one dosing unit.
  • Each moving mechanism is arranged so that the dosing units over at least a length L essentially move parallel with and close to the product web with product bodies.
  • the product web may be arranged so as to comprise a means, for example, a conveyor, which conveys the product bodies.
  • the product web may be formed of product bodies which are interconnected in a continuous strip. In both cases, the product bodies are preferably arranged so that the distance between two successive product bodies is approximately constant.
  • the at least one moving mechanism may be configured as a dosing carousel, but this is not the only possibility. Any mechanism could be used on which the at least one dosing unit is arranged, and which causes the at least one dosing unit to undergo a continuous, cyclic movement, the at least one dosing unit in each cycle moving close to and essentially parallel with the product web over a distance L.
  • the dosing carousel can be arranged in an approximately horizontal plane or in an approximately vertical plane.
  • the dosing carousel can be arranged in a plane that forms an angle with the horizontal plane that is between 0° and 90°.
  • the dosing duct is arranged so that different parts of the dosing carousel lie in different planes, the dosing carousel thus lying in a 3- dimensional surface.
  • the apparatus will also advantageously comprise means for synchronising the movements of the at least one dosing unit and the at least one dosing unit's discharge duct with the movement of the product web's product bodies into or onto which the at least one fluid substance is to be injected or applied, so that the injection or application, or combination of injection and application, can be completed with the desired result.
  • Figure 1 is a perspective view of an apparatus for injection or application, or both, of a fluid substance onto a linear product web.
  • Figure 2 is a perspective view of an apparatus for injection or application, or both, of a fluid substance onto a curved product web.
  • Figure 3 shows a dosing unit with three discharge ducts.
  • Figure l is a schematic diagram of an embodiment of the invention wherein a product web 10 is provided which in this case is shown as a linear product web.
  • the product web 10 may be formed in that the product bodies 11 are advanced on a conveyor, for example a vacuum conveyor, or the product bodies 11 may be interconnected in a long strip that is advanced by suitable means.
  • the distance between two product bodies will preferably be constant.
  • Dosing units 13 are also shown which are arranged on a moving mechanism (not shown). Each dosing unit is shown here having a dosing body 14 and a dosing head 15. At least one discharge duct 16 is arranged on the dosing head for injection or application or both of at least one fluid substance into or onto an outer surface of the product bodies 11.
  • the arrow A indicates the direction in which the dosing units 13 move when the product web moves in the direction indicated by the arrow B. What is important here is that the dosing units and the product web move at substantially the same speed in the same direction and are close to each other as they move along the length L where the injection process or the application process, or a combination of the two, is carried out.
  • the discharge duct or discharge ducts 16 will be passed into the product body 11 for injection of one or more doses of a fluid substance.
  • a fluid substance may also be injected. If the fluid substance is to be applied onto the outer surface of the product body 11, the discharge duct or discharge ducts 16 are passed over the product body 11 and apply one or more doses of at least one fluid substance onto the outer surface of the product body 11. If the dosing unit 13 is equipped with two or more discharge ducts 16, at least one type of fluid substance can be both injected and applied.
  • the dose or doses of the at least one fluid substance are injected or applied or both whilst the dosing unit and the product body move approximately parallel and close to each other at substantially the same speed along the length L.
  • the dosing unit 13 will have moved along the whole length L, and the discharge duct or discharge ducts 16 will be withdrawn.
  • the moving mechanism with the dosing unit 13 and the product web 10 will be arranged so close to each other that the tip of the discharge duct or discharge ducts 16 on each individual dosing unit 13 will automatically lie above the product body 11 when the dosing unit moves along the length L, and it is not necessary to move the discharge duct or discharge ducts 16 forward and back respectively before and after application of the at least one fluid substance.
  • Figure 2 shows an embodiment in which the dosing units 13 are arranged on a moving mechanism (not shown) in such manner that the dosing units 13 move in a vertical plane.
  • the product web 10 has a corresponding curved form as it passes the moving mechanism with the dosing units 13 so that the dosing units 13 and the product web 10 move approximately parallel and close to each other at least along the length L where injection or application, or both, of at least one type of fluid substance into the product bodies is carried out as described above.
  • Figure 3 shows a dosing unit comprising a dosing body 14 and a dosing head 15.
  • the dosing head 15 is attached to two guide rods 18 which, with the aid of suitable means, can be moved in and out of the dosing body 14.
  • Three discharge ducts 16 are connected to the dosing head 15 for injection or application or both of at least one fluid substance.
  • the supply of the at least one fluid substance takes place through the hose 17 which is shown here connected directly to the dosing head 15.
  • the discharge ducts 16 will preferably be arranged at different heights, or the discharge ducts can be provided with a mechanism for raising and lowering the discharge ducts 16, or optionally a mechanism for tilting the discharge ducts 16 up and down. In the figure, the discharge ducts 16 are at the same height and will thus be able to perform injection into or application onto the outer surface of the product body 11 of one or more fluid substances.

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Abstract

A method and apparatus for injection of at least one fluid substance into at least one product body (11) or application of at least one fluid substance onto at least one outer surface of at least one product body (11), or simultaneous injection and application of at least one fluid substance into and onto an outer surface of at least one product body (11), wherein at least one dosing unit (13) comprising at least one discharge duct (16) for dosing the at least one fluid substance, is arranged so that the dosing unit (13) is close to the at least one product body (11) during the injection process or the application process. The at least one dosing unit (13) or the tip of the dosing unit discharge duct (16) and the at least one product body (11) are kept in motion at substantially the same speed as the at least one fluid substance is injected into or applied onto the at least one product body (11).

Description

METHOD AND APPARATUS FOR INJECTING AND/OR APPLYING A FLUID SUBSTANCE TO A MOVING BODY
The present invention relates to a method for injection or application of a fluid substance into or onto the outer surface of a product body. The invention also relates to an apparatus for injecting or applying a fluid substance into or onto the outer surface of a product body.
In most production machines for disposable products, such as premoistened towelettes or wipes, different web-like raw materials from a roll (e.g., plastic, paper etc.) are used. The materials are fed into the machine and joined together in different combinations to produce different product characteristics. The joining methods may be gluing or welding using heat or ultrasound. The material webs, may also, before and after they are joined, be folded and pattern-cut to obtain the desired shape and quality of the final product.
In some products it is also desirable to store doses of various liquids or creams in controlled quantities, and during the building up of the product web one or more materials are introduced which are capable of storing the liquid or cream and releasing it according to defined dosing principles.
A product containing liquids or creams must, as a rule, be packed in an air- and/or watertight packaging. Materials for such packaging are usually fed in from a roll, wrapped around the liquid or cream containing product and joined together to form a sealed packaging using heat welding or glue.
A common feature of the majority of machines on the market today that produce products of this type is that during the dosing of liquid or cream, the product web remains stationary whilst the filling of one or more products is in progress. This means that the machine must start and stop (index) for each product or row of products that is advanced, and this quite obviously imposes limitations as regards production rate and machine speed.
It has therefore been a basic object to provide a method with associated apparatus which eliminates the said disadvantages of the known technology. Furthermore, it has been a particular object to provide a method with associated apparatus which gives an increased production rate compared with the known technology.
This is achieved according to the invention by a method as disclosed in independent claim 1 and an apparatus as disclosed in independent claim 12. Further embodiments of the method are disclosed in dependent claims 2-11, whilst further embodiments of the apparatus are disclosed in dependent claims 13-30.
A method is provided for injection of at least one fluid substance into at least one product body or application of at least one fluid substance onto an outer surface of at least one product body, or simultaneous injection and application of at least one fluid substance into and onto the outer surface of product bodies. The fluid substance may be a cream or the like that is injected into the at least one product body using at least one discharge duct that is passed into the product body and releases a dose of the fluid substance, or that is applied to the outside of the product body in that at least one discharge duct is passed over an outer surface of the product body and applies a dose of the fluid substance onto the outer surface. The at least one product body is in this case made of a material that absorbs the fluid substance applied onto the outer surface. Furthermore, at least one dosing unit is provided comprising the said at least one discharge duct for dosing the at least one fluid substance. The at least one dosing unit is arranged so that it is close to the at least one product body during the injection process or the application process, or a combined injection and application process, and as the at least one fluid substance is injected into or applied onto, or both injected into and applied onto the at least one product body, the at least one dosing unit or tip of the dosing unit's at least one discharge duct and the at least one product body are kept in motion at substantially the same speed.
By "substantially the same speed" here is meant that the at least one dosing unit or the tip of a discharge duct on the at least one dosing unit and the at least one product body, at most, can move so much faster than the at least one product body that the at least one product body will, at most, be "outdistanced" by one product body length during the injection or application of the at least one fluid substance. The opposite also applies of course, - i.e., that the at least one product body can "outdistance" the dosing unit or the tip of the dosing unit discharge duct by at most one product body length as the at least one fluid substance is injected or applied. A product body length is the length of a product body in the direction of travel of the product body.
By the term "close to" here is meant that the at least one dosing unit is so close to the at least one product body during the injection process or the application process, or the combined injection and application process, that the tip of the dosing unit's at least one discharge duct can extend into the product body for injection or extend over the outer surface of the product body for application. The requirement is thus that the discharge duct reaches the desired position so that injection or application or both can be carried out. During the injection process or the application process, or a process involving a combination of injection and application, both the at least one dosing unit and the at least one discharge duct on the dosing unit move in substantially the same direction as the direction of travel of the product web. In principle, they will follow parallel paths, but small deviations may of course occur in practice. The parallel paths may be rectilinear or have different types of curved forms, but will at all times be essentially parallel at the point where injection or application or a combination of the two is carried out.
When injecting the at least one fluid substance into the at least one product body or applying the at least one fluid substance onto an outer surface of the at least one product body, or a combination of the two, the following steps are carried out: the discharge duct, optionally the discharge ducts, is/are passed into the product body or passed immediately above the outer surface of the product body when the product body arrives at a predetermined position in relation to the dosing unit; - each discharge duct injects a dose of the at least one liquid substance into the product body or applies a dose of the liquid substance onto the outer surface of the product body; once injection or application of the fluid substance has been carried out, the discharge duct, optionally the discharge ducts, is/are withdrawn. These steps are carried out whilst the at least one product body is in motion and at the same time as the movement of the discharge duct, optionally the discharge ducts, is synchronised with the movement of the product body throughout the injection or application process so as to ensure that the discharge duct or discharge ducts come into the right position in relation to the at least one product body for injection or application, or both, of the at least one fluid substance.
At least two doses of different liquid substances may also be injected into or applied onto, or injected into and applied onto one product body. The at least two doses can be injected or applied, or injected and applied in steps through at least two different dosing units, or this can be effected through at least two different discharge ducts that are arranged on the same dosing unit.
The at least one dosing unit is arranged on a moving mechanism which causes the dosing unit to undergo a continuous cyclic movement, the dosing unit in each cycle moving close to and approximately parallel with the at least one product body and at substantially the same speed as the at least one product body so as to allow injection or application or injection and application of at least one fluid substance to be carried out.
As an alternative to being arranged on a moving mechanism, one or more dosing units may be stationary whilst the discharge duct or ducts of each individual dosing unit are movably arranged on the dosing unit in such manner that the discharge duct or ducts undergo a continuous cyclic swinging movement back and forth, optionally a continuous, cyclic, linear sideways movement back and forth. Another alternative is that the discharge duct or discharge ducts are arranged on a movable dosing head which is movably arranged on the dosing body of the dosing unit. The dosing head may either undergo a continuous cyclic swinging movement back and forth or a continuous, rectilinear, cyclic sideways movement back and forth. A cyclic swinging movement will be most suitable for application processes, since such movement during an injection process where the discharge duct or discharge ducts are passed into the at least one product body, will require a high degree of synchronisation of the movements of the discharge duct or ducts and the at least one product body.
As an example, the moving mechanism may be configured as a dosing carousel. However, there are other mechanisms that will cause a dosing unit to move cyclically so that the dosing unit in each cycle moves close to the at least one product body over a distance whilst a dose of one or more fluid substances is injected or applied, or both injected and applied. The moving mechanism and the at least one product body will of course be provided with means that move them.
An apparatus is also provided for injection of at least one fluid substance into product bodies or application of at least one fluid substance onto an outer surface of product bodies, or simultaneous injection and application of at least one fluid substance into and onto an outer surface of product bodies, the product bodies forming a product web. The apparatus further comprises at least one moving mechanism comprising at least one dosing unit that is provided with at least one discharge duct for injection or application, or both, of the at least one fluid substance. The at least one moving mechanism is further arranged so that the at least one dosing unit is close to the product web during the injection or application process or a combined injection and application process, and so that the at least one dosing unit, or at least the tip of the at least one discharge duct, and the product web are arranged so that they are in motion at substantially the same speed as the at least one fluid substance is injected into the product body or applied onto an outer surface of the product body.
The terms "close to" and "substantially the same speed" are as defined above.
The moving mechanism with the at least one dosing unit is arranged so that the at least one dosing unit, or the tip of the dosing unit discharge duct, essentially moves parallel with the product web over at least a length L whilst the at least one fluid substance is injected into or applied onto, or injected into and applied onto a product body. If injection and application take place simultaneously and in groups, i.e., that groups of two or more subsequent dosing units arranged on the moving mechanism simultaneously inject or apply, or inject and apply at least one fluid substance into or onto two or more product bodies, the length L will also be correspondingly be longer.
If one or more different types of fluid substances are injected into or applied onto, or both injected into and applied onto the product bodies in steps, the length L could also, but not necessarily, be adapted accordingly. It is conceivable that the product web and the dosing unit or dosing units do not move parallel with and close to each other between two steps, and the length L will be divided into two or more intervals instead of being extended.
The at least one dosing unit may be provided with one or more chambers for storing one or more types of fluid substances for injection into or application onto the product bodies.
The at least one dosing unit can, in one embodiment, comprise two or more discharge ducts for injection or application, or both injection and application of the same fluid substance into or onto one product body.
The at least one dosing unit may also comprise two or more discharge ducts for injection or application or both of different fluid substances into or onto one product body.
The at least one dosing unit further comprises a dosing body that is provided with means for moving the dosing unit discharge duct and means for dosing the at least one fluid substance. In one embodiment, the at least one discharge duct may be arranged on the dosing unit in such manner as to allow the at least one discharge duct to be moved out of and into the dosing unit.
Furthermore, the discharge duct may be arranged on the dosing unit in such manner as to allow the discharge duct to be moved in a cyclic, approximately rectilinear back and forth movement in a sideways direction relative to the longitudinal direction of the discharge duct.
Alternatively, the discharge duct or discharge ducts may be arranged on the dosing unit in such manner as to allow the discharge duct to be rotated or swung back and forth about an approximately vertical axis of rotation in a cyclic movement. In a slightly modified embodiment, one or more discharge ducts may be arranged on one or more dosing heads that are arranged on the dosing unit dosing body. The dosing head or dosing heads may be movably arranged on the dosing body and be arranged so that it or they swing back and forth in a continuous cyclic movement about a vertical axis, or move back and forth in a sideways continuous cyclic movement. In addition, the dosing unit discharge duct or discharge ducts, when desirable, can be arranged so as to be able to move out and in relative to the dosing unit.
In a further embodiment, at least one moving mechanism comprising at least one dosing unit may be arranged on either side of the product web, each moving mechanism being arranged so that the dosing units over at least a length L essentially move parallel with and close to the product web with product bodies.
In a further embodiment, two or more moving mechanisms may be arranged on one and the same side of the product web, each moving mechanism comprising at least one dosing unit. Each moving mechanism is arranged so that the dosing units over at least a length L essentially move parallel with and close to the product web with product bodies.
The product web may be arranged so as to comprise a means, for example, a conveyor, which conveys the product bodies. Alternatively, the product web may be formed of product bodies which are interconnected in a continuous strip. In both cases, the product bodies are preferably arranged so that the distance between two successive product bodies is approximately constant.
The at least one moving mechanism may be configured as a dosing carousel, but this is not the only possibility. Any mechanism could be used on which the at least one dosing unit is arranged, and which causes the at least one dosing unit to undergo a continuous, cyclic movement, the at least one dosing unit in each cycle moving close to and essentially parallel with the product web over a distance L.
In the case where the moving mechanism is configured as a dosing carousel, the dosing carousel can be arranged in an approximately horizontal plane or in an approximately vertical plane. Alternatively, the dosing carousel can be arranged in a plane that forms an angle with the horizontal plane that is between 0° and 90°.
It is also conceivable that the dosing duct is arranged so that different parts of the dosing carousel lie in different planes, the dosing carousel thus lying in a 3- dimensional surface.
The apparatus will also advantageously comprise means for synchronising the movements of the at least one dosing unit and the at least one dosing unit's discharge duct with the movement of the product web's product bodies into or onto which the at least one fluid substance is to be injected or applied, so that the injection or application, or combination of injection and application, can be completed with the desired result.
An embodiment of the invention will now be described in detail with reference to the attached figures, wherein:
Figure 1 is a perspective view of an apparatus for injection or application, or both, of a fluid substance onto a linear product web.
Figure 2 is a perspective view of an apparatus for injection or application, or both, of a fluid substance onto a curved product web.
Figure 3 shows a dosing unit with three discharge ducts.
Figure l is a schematic diagram of an embodiment of the invention wherein a product web 10 is provided which in this case is shown as a linear product web.
The product web 10 may be formed in that the product bodies 11 are advanced on a conveyor, for example a vacuum conveyor, or the product bodies 11 may be interconnected in a long strip that is advanced by suitable means. The distance between two product bodies will preferably be constant.
Dosing units 13 are also shown which are arranged on a moving mechanism (not shown). Each dosing unit is shown here having a dosing body 14 and a dosing head 15. At least one discharge duct 16 is arranged on the dosing head for injection or application or both of at least one fluid substance into or onto an outer surface of the product bodies 11. The arrow A indicates the direction in which the dosing units 13 move when the product web moves in the direction indicated by the arrow B. What is important here is that the dosing units and the product web move at substantially the same speed in the same direction and are close to each other as they move along the length L where the injection process or the application process, or a combination of the two, is carried out. As a dosing unit 13 in its cyclic movement enters the start of the length L and is thus close to a product body 11, the discharge duct or discharge ducts 16 will be passed into the product body 11 for injection of one or more doses of a fluid substance. Several types of fluid substances may also be injected. If the fluid substance is to be applied onto the outer surface of the product body 11, the discharge duct or discharge ducts 16 are passed over the product body 11 and apply one or more doses of at least one fluid substance onto the outer surface of the product body 11. If the dosing unit 13 is equipped with two or more discharge ducts 16, at least one type of fluid substance can be both injected and applied.
The dose or doses of the at least one fluid substance are injected or applied or both whilst the dosing unit and the product body move approximately parallel and close to each other at substantially the same speed along the length L. After injection or application, or both, has been carried out, the dosing unit 13 will have moved along the whole length L, and the discharge duct or discharge ducts 16 will be withdrawn.
When it is a matter of only application of one or more fluid substances onto the outer surface of the product body 11 , the moving mechanism with the dosing unit 13 and the product web 10 will be arranged so close to each other that the tip of the discharge duct or discharge ducts 16 on each individual dosing unit 13 will automatically lie above the product body 11 when the dosing unit moves along the length L, and it is not necessary to move the discharge duct or discharge ducts 16 forward and back respectively before and after application of the at least one fluid substance. Figure 2 shows an embodiment in which the dosing units 13 are arranged on a moving mechanism (not shown) in such manner that the dosing units 13 move in a vertical plane. The product web 10 has a corresponding curved form as it passes the moving mechanism with the dosing units 13 so that the dosing units 13 and the product web 10 move approximately parallel and close to each other at least along the length L where injection or application, or both, of at least one type of fluid substance into the product bodies is carried out as described above.
Figure 3 shows a dosing unit comprising a dosing body 14 and a dosing head 15. The dosing head 15 is attached to two guide rods 18 which, with the aid of suitable means, can be moved in and out of the dosing body 14. Three discharge ducts 16 are connected to the dosing head 15 for injection or application or both of at least one fluid substance. The supply of the at least one fluid substance takes place through the hose 17 which is shown here connected directly to the dosing head 15.
If it is desirable to carry out a simultaneous injection and application of one or more fluid substances, the discharge ducts 16 will preferably be arranged at different heights, or the discharge ducts can be provided with a mechanism for raising and lowering the discharge ducts 16, or optionally a mechanism for tilting the discharge ducts 16 up and down. In the figure, the discharge ducts 16 are at the same height and will thus be able to perform injection into or application onto the outer surface of the product body 11 of one or more fluid substances.

Claims

1. A method for injection of at least one fluid substance into at least one product body (11) or application of at least one fluid substance onto at least one outer surface of at least one product body (11)5 or simultaneous injection and application of at least one fluid substance into and onto an outer surface of at least one product body (11), wherein at least one dosing unit (13) comprising at least one discharge duct (16) for dosing the at least one fluid substance is arranged so that the dosing unit (13) is close to the at least one product body (11) during the injection process or the application process, characterised in that the at least one dosing unit (13) or tip of the dosing unit discharge duct (16) and the at least one product body (11) are kept in motion at substantially the same speed as the at least one fluid substance is injected into or applied onto an outer surface of, or the at least one fluid substance is both injected into and applied onto an outer surface of the at least one product body (11).
2. A method according to claim 1, characterised in that during the injection process or the application process both the at least one dosing unit (13) and the at least one discharge duct (16) on the dosing unit are moved in substantially the same direction as the direction of travel of the product web.
3. A method according to claims 1-2, characterised in that during injection of the at least one fluid substance into the at least one product body (11) or application of the at least one fluid substance onto an outer surface of the at least one product body (11), the following steps are carried out:
- the discharge duct (16), optionally the discharge ducts, is/are passed into the product body (11) or passed immediately above the outer surface of the product body when the product body (11) arrives at a predetermined position in relation to the dosing unit (13);
- each discharge duct (16) injects a dose of the at least one liquid substance into the product body (11) or applies a dose of the liquid substance onto the outer surface of the product body (11); - the discharge duct or, optionally, the discharge ducts (16) are withdrawn.
4. A method according to claim 3, characterised in that the movement of the discharge duct, optionally the discharge ducts (16), is synchronised with the movement of the product body (11) during the injection or application process.
5. A method according to claims 1-4, characterised in that the at least one product body (11) moves essentially parallel with the at least one dosing unit
(13) or the tip of the dosing unit discharge duct (16) as the at least one fluid substance is injected into or applied onto the at least one product body (11).
6. A method according to claims 1-5, characterised in that a dosing unit (13), which is provided with at least two discharge ducts (16), injects or applies or injects and applies a fluid substance into/onto the product body (11).
7. A method according to claim 6, characterised in that the dosing unit (13) injects or applies or injects and applies at least two doses of different liquid substances into/onto one product body (11).
8. A method according to claim 7, characterised in that the at least two doses are injected in steps by different dosing units (13).
9. A method according to claims 1-8, characterised in that the at least one dosing unit (13) is arranged on a moving mechanism and that means are provided which drive the moving mechanism.
10. A method according to claim 9, characterised in that the moving mechanism is configured as a dosing carousel.
11. An apparatus for injection of at least one fluid substance into product bodies (11) or application of at least one fluid substance onto an outer surface of product bodies (11), or simultaneous injection and application of at least one fluid substance into and onto an outer surface of product bodies (11), the product bodies (11) constituting a product web (10), and wherein the apparatus further comprises at least one moving mechanism comprising at least one dosing unit (13), which dosing unit is provided with at least one discharge duct (16) for injecting or applying, or injecting and applying the at least one fluid substance, c har acteri s e d in that the at least one moving mechanism is arranged so that the at least one dosing unit (13) is close to the product web (10) during the injection or application process, and that the at least one dosing unit (13), or at least the tip of the at least one discharge duct (16), and the product web (10) are arranged so that they are in motion at substantially the same speed as the at least one fluid substance is injected into the product bodies (11) or applied onto an outer surface of the product body (11).
12. An apparatus according to claim 11, ch ara ct eri s e d in that the moving mechanism with the at least one dosing unit (13) is arranged so that the at least one dosing unit (13) or the tip of the dosing unit discharge duct (16) essentially moves parallel with the product web (10) over at least a length L as the at least one fluid substance is injected into or applied onto, or both injected into and applied onto the product bodies (11).
13. An apparatus according to claims 11-12, char act e ri s e d in that the at least one dosing unit (13) comprises two or more discharge ducts (16) for injection or application, or injection and application of the same fluid substance into/onto the product body (11).
14. An apparatus according to claims 11-12, char act eri s e d in that the at least one dosing unit (13) comprises two or more discharge ducts (16) for injection or application or both of different fluid substances into/onto one product body (11).
15. An apparatus according to claims 11-14, c h arac t eri s ed in that the at least one dosing unit (13) further comprises a dosing body (14) that is provided with means for moving the dosing unit's at least one discharge duct (16) and means for dosing the at least one fluid substance.
16. An apparatus according to claim 155 chara ct eri s e d in that the at least one discharge duct (16) is arranged on the dosing unit in such manner as to allow the discharge duct (16) to be moved out of and into the dosing unit (13).
17. An apparatus according to claims 15-16, characterised in that the discharge duct (16) is arranged on the dosing unit (13) in such manner as to allow the discharge duct (16) to be moved approximately rectilinearly back and forth in a sideways direction relative to the longitudinal direction of the discharge duct.
18. An apparatus according to claims 15-17, characterised in that the discharge duct (16) is arranged on the dosing unit (13) in such manner as to allow the discharge duct (16) to be rotated or swung back and forth about a vertical axis of rotation.
19. An apparatus according to claims 11-18, characterised in that at least one moving mechanism comprising at least one dosing unit (13) is arranged on either side of the product web (10), the moving mechanism being arranged so that the dosing units (13) over at least a length L essentially move parallel with and close to the product web (10).
20. An apparatus according to claims 11-19, characterised in that at least two or more moving mechanisms are arranged on one side of the product web (10), each moving mechanism comprising at least one dosing unit (13) and each moving mechanism being arranged so that the dosing units (13) over at least a length L essentially move parallel with and close to the product web (10).
21. An apparatus according to claims 11-2O5 characterised in that the product web (10) comprises a means, such as a vacuum conveyor (12), which conveys the product bodies (11).
22. An apparatus according to claims 11-20, characterised in that the product web is formed of product bodies (11) that are interconnected in a strip.
23. An apparatus according to claims 21-22, characterised in that the product bodies (11) are spaced apart essentially equi distantly in or on the product web
(10).
24. An apparatus according to claims 11-23, characterised in that the at least one moving mechanism is configured as a dosing carousel.
25. An apparatus according to claim 24, characterised in that the dosing carousel is arranged in an approximately horizontal plane.
26. An apparatus according to claim 24, characterised in that the dosing carousel is arranged in an approximately vertical plane.
27. An apparatus according to claim 24, characterised in that the dosing carousel is arranged in a plane that forms an angle with the horizontal plane that is between 0° and 90°.
28. An apparatus according to claim 24, characterised in that the dosing carousel is arranged so that it lies in a 3 -dimensional surface.
29. An apparatus according to claims 11-28, characterised in that it comprises means for synchronising the movements of the at least one dosing unit (13) and the at least one dosing unit's discharge duct (16) with the movement of the product web's product body (11) into or onto which the at least one fluid substance is to be injected or applied, or injected and applied.
PCT/NO2007/000310 2006-09-05 2007-09-04 Method and apparatus for injection and application of a fluid substance WO2008030102A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20063985 2006-09-05
NO20063985A NO325238B1 (en) 2006-09-05 2006-09-05 Method and apparatus for injecting and feeding a liquid substance

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WO2008030102A1 true WO2008030102A1 (en) 2008-03-13

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Publication number Priority date Publication date Assignee Title
WO2020109430A1 (en) 2018-11-30 2020-06-04 Essilor International Method for determining a progressive lens and associated system
WO2020109431A1 (en) 2018-11-30 2020-06-04 Essilor International Method for determining a progressive lens and associated system

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US3382644A (en) * 1963-12-30 1968-05-14 Clarence W. Vogt Apparatus for and method of continuously forming and filling bags
US4092953A (en) * 1976-12-09 1978-06-06 The D. L. Auld Company Apparatus for coating glass containers
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Publication number Priority date Publication date Assignee Title
WO2020109430A1 (en) 2018-11-30 2020-06-04 Essilor International Method for determining a progressive lens and associated system
WO2020109431A1 (en) 2018-11-30 2020-06-04 Essilor International Method for determining a progressive lens and associated system

Also Published As

Publication number Publication date
NO20063985A (en) 2008-03-03
NO325238B1 (en) 2008-03-03

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