WO1992016305A1 - Machine a vernir les melf - Google Patents

Machine a vernir les melf Download PDF

Info

Publication number
WO1992016305A1
WO1992016305A1 PCT/DE1992/000221 DE9200221W WO9216305A1 WO 1992016305 A1 WO1992016305 A1 WO 1992016305A1 DE 9200221 W DE9200221 W DE 9200221W WO 9216305 A1 WO9216305 A1 WO 9216305A1
Authority
WO
WIPO (PCT)
Prior art keywords
cassette
melf
machine according
painting
conveyor
Prior art date
Application number
PCT/DE1992/000221
Other languages
German (de)
English (en)
Inventor
Georg Sillner
Original Assignee
Georg Sillner
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 Georg Sillner filed Critical Georg Sillner
Publication of WO1992016305A1 publication Critical patent/WO1992016305A1/fr

Links

Classifications

    • 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
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
    • B05C13/025—Means for manipulating or holding work, e.g. for separate articles for particular articles relatively small cylindrical objects, e.g. cans, bottles
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/02—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
    • B05C1/027—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles only at particular parts of the articles

Definitions

  • the invention relates to a Melf painting machine according to the preamble of claim 1.
  • “Melf” is understood to mean an electrical component, for example an electrical resistor, which has an essentially circular-cylindrical component body which is provided at both ends with a cap which forms the electrical connection. These components have extremely small dimensions. When implemented as a micro-melf, the axial length is, for example, in the order of 2 mm and the diameter on the caps is in the order of 1.1 mm.
  • a machine has already been proposed for painting Melfs, but not in their training as micro-Melfs, in which the Melfs are used in a feed station in receptacles of a transport element formed by an endless conveyor belt, then with this conveyor belt formed by a steel belt at painting stations are moved past and then conveyed through drying zones in which the paint applied to the painting stations is dried under the influence of heat.
  • the receptacles in the conveyor belt it is ensured that the Melfs roll on a surface of the conveyor line about their longitudinal axis in order to maintain a uniform coating application after painting.
  • This Melf coating machine has considerable disadvantages which, among other things, consist in the fact that the part of the transport route running through the drying zone must be relatively long, particularly in the case of high output, ie with a fast-moving conveyor belt, in order to achieve the required drying time.
  • the production of the conveyor belt with the required length and the necessary recesses is very complex.
  • the recording can only be made in the conveyor belt, which is designed as a steel belt, by punching out. This results in very rough, high-friction contact surfaces for the Melfs or their caps in the area of each receptacle, so that a perfect rolling off of the Melfs after painting to maintain a uniform layer of paint and to avoid paint noses, etc.
  • the particular advantage of the Melf varnishing machine according to the invention is that the transport system is formed by cassettes moving on a transport or conveyor line. As a result, the transport system is subdivided into small units, each unit or each cassette being able to be guided very precisely, at least where necessary, by appropriately guiding the conveyor line.
  • cassettes are rigid, a further advantage is that any suitable material can be used for these cassettes.
  • manufacturing techniques can be used for the production of the cassettes and in particular also for the production of the receptacles, which ensure optimal surface design of the cassettes, in particular also in the area of the receptacles.
  • FIG. 1 shows a schematic illustration and a top view of an electrical component in the form of a melt
  • FIG. 2 in a schematic representation and top view
  • FIG. 5 shows a section along the line I-I of FIG. 1 through a cassette arranged on a longitudinal conveyor section of the conveyor line;
  • Fig. 6 is a section along the line II-II of Fig. 5;
  • FIG. 7 shows a representation similar to FIG. 5, but at a painting station
  • FIG. 8 shows a section along the line III-III through a transverse conveyor path of the Melf painting machine according to FIG. 2.
  • the figures 1 are electrical components, for example in the form of resistors, which are also referred to as Melf and have an essentially circular-cylindrical component body 2, which is provided at both ends with a cap 3 forming an electrical connection.
  • the Melfs 1 are micro-Melfs that are extremely small Have dimensions.
  • the axial length is, for example, on the order of 2 mm.
  • the diameter in the area of the caps 3 is, for example, 1.1 mm.
  • the caps 3 After the caps 3 have been applied to the component body 2, the latter must be provided with a coating 4 formed by one or more layers on its peripheral surface lying between the two caps 3. In further work steps, a plurality of color rings 5 forming a color coding are then to be applied to this paint 4. In order to be able to carry out this work cleanly with the extremely small and light Melfs 1, and in fact without a coating application to the caps 3, the Melf coating machine 6 described in more detail below in connection with FIGS. 2 to 7 is used.
  • This Melf coating machine 6 essentially consists of a self-contained transport section which, in the embodiment shown, is composed of a total of four sections which are essentially arranged in a common horizontal plane and adjoin one another, namely the longitudinal conveyor section 7, from the transverse conveyor section 8 adjoining it vertically in the transport direction A, from the longitudinal conveyor section 9 adjoining it in the transport direction and from the transverse conveyor section 10 adjoining this in the conveying direction.
  • the conveyor section or the aforementioned sections of this conveyor section are provided with a A large number of elongated cassettes 11 are occupied, each of which can accommodate a total of forty Melfs 1 in the embodiment shown and which close together in the longitudinal direction L and on the transverse conveyor sections 8 on the longitudinal conveyor sections 7 and 9 with their end faces 12 and 10 are moved with their long sides 13 close to one another in the transverse direction, that is to say transversely to their longitudinal extension L.
  • the cassettes 11 together with the conveyor line or their conveyor sections 7 to 10 form a transport system or a transporter with which the Melfs 1 are moved past the various negotiating stations.
  • Each cassette 11 essentially consists of two parallel strips 14 which extend in the longitudinal direction L and each have the same cross-sectional profile, which is composed in one piece from a rectangular profile section 15 and a strip-like profile section 16.
  • the strip-like profile section 16 stands laterally in the middle of one of the longer cross-sectional sides of the profile section 15 and also has a rectangular cross-section, so that each bar 14 is symmetrical with respect to a central plane designated Ml in FIG. 4 is.
  • the two strips 14 of each cassette 11 are connected to one another at the two end faces 12 of the cassette by connecting webs 17, in such a way that the strip-like profile sections 16 of the two strips 14 face one another and lie in the common plane M1, with a mutual spacing , which is smaller than the axial length of the Melfs 1, ie approximately corresponds to the exposed or not covered by the caps 3 axial length of the component body 2.
  • the connecting webs 17 which connect the strips 14 to one another are made from a flat material with a thickness which is smaller than the diameter which the Melfs 1 have in the region of the caps 3. Furthermore, in the embodiment shown, the thickness of the profile sections 16 of the strips 14 perpendicular to the plane M1 is the same or slightly smaller than the diameter of the caps 3.
  • a plurality of receptacles for the melfs 1 are formed, which are then arranged in these receptacles with their longitudinal axis perpendicular to the longitudinal extension L of the cassette 11 and parallel to the plane M1.
  • Each receptacle is formed by two recesses 18, which are opposite each other in pairs in an axial direction perpendicular to the central axis M2 and are formed in the profile sections 16.
  • Each recess 18 is open both to the central plane M2 and to the top and bottom of the profile section 16.
  • each recess 18 has cross-sectional planes parallel to the central axis M2, a cross-sectional width that decreases towards the lower side 16 ′′ of the profile section 16 in such a way that the opening width of each recess 18 on the upper side 16 ′ is larger than the diameter of the caps 3, on the lower side 16 However, is smaller than this diameter of the caps 3.
  • the length of each recess 18 in the axial direction perpendicular to the central axis M2 is at most equal to the axial length of the caps 3, so that the Melfs inserted into the cassette 11 from above are only in the area their cap 3 are in the recesses 18.
  • the conveyor track is formed by a profile rail which, at least in its upper area, has a rectangular or square cross section with an upper guide or sliding surface 21.
  • the cassettes 11 with the respective underside 16 ′′ rest on this sliding surface 21, which has a groove 21 ′ extending in the middle in the transport direction A.
  • the profile rail 20 is overlapped on the two long sides of each cassette 11 or by the parts of the profile sections 15 projecting beyond the undersides 16 ′′.
  • the profile sections 15 and 16 thus form sliding and guiding surfaces with which an exact guidance of the cassettes 11 along the longitudinal conveyor sections 7 and 9 or the profile rails 20 there is possible with small tolerances.
  • the profile rail 20 is inclined at an acute angle a transversely to the conveying direction A at least in these regions of the longitudinal conveying sections 7 and 9 .
  • the Melfs 1 move in the respective cassette 11 (also supported by their rolling movement on the surface 21) in such a way that all Melfs 1, each with a cap 3, lie against the end of the respectively lower recess 18, so that all Melfs in with respect to a common plane, namely with respect to the plane of the closed ends of the deeper recesses 18 are exactly positioned.
  • resilient rollers 22 can also be provided on corresponding areas of the conveying path, pressing the respective cassette 11 with a profile section 15 against a predetermined longitudinal side of the profile rail 20.
  • This support is preferably an element which forms support surfaces for the caps 3 which move in the transport direction A or counter to the transport direction.
  • This support is, for example, a wheel 24 which is rotatably mounted about an axis 25 which is perpendicular to the transport direction A and parallel to the sliding surface 21.
  • the wheel 24 has an axial width that is equal to or slightly smaller than the distance that the parts of the profile sections 15 of the two strips 14 of a magazine 11 projecting above the top side 16 'of the profile sections 16 are at a distance from one another.
  • the wheel 24 is provided with a circumferential groove 26, in such a way that the wheel 24 only forms the contact surface with the circumferential regions 27 formed on both sides by this circumferential groove 26, and only for the caps 3.
  • the cassettes 11 connect closely to one another on the longitudinal conveyor sections 7 and 9 during normal operation, the upper sides 16 * of the profile sections 16 of the adjoining cassettes 11 form continuous surfaces on which the wheel 24 in question can roll. Since the connecting webs 17 on the two end faces 12 do not protrude above the upper side 16 'or the lower side 16''of the profile sections 16, vibration-free rolling without lateral deflection of the wheel 24 is possible.
  • the cassettes 11 are moved further with their longitudinal axis L perpendicular to the transport direction A and are guided in guides 28 on both end faces 12 for this purpose.
  • thrust elements 29 and 30 which in the embodiment shown are each formed by hydraulic cylinders, the thrust elements 29, each on the The beginning of the longitudinal conveyor sections 7 and 9 are provided, for example have a stroke which corresponds to a length of the cassettes, while the stroke of the thrust elements 30 provided at the beginning of the transverse conveyor sections 8 and 9 is the same or slightly larger than the width of the cassettes 11.
  • a feed station 31 is provided at the beginning of the longitudinal conveyor section 7, at which the melfs 1 in a bunker or storage container 32 are placed in the required orientation in a cassette 11 provided at the feed station 31.
  • This insertion is preferably carried out in such a way that a group having a plurality of Melfs 1 is simultaneously inserted into the cassette 11, for example a group of twenty Melfs 1, so that the required number of Melfs 1 is introduced into the cassette 11 in two work cycles.
  • the painting station 31 is followed by two painting stations 33 and 34, in each of which a layer of paint is applied to the component body 2 between the caps 3 with a wide painting wheel 23.
  • the profile rail 20 has an opening 20 '. Since the melts 1 of the above-described manner continuously roll with their caps 3 on the sliding surface 21 when the cassettes 11 are moved further, a uniform distribution of the paint film applied to the coating stations 32 and 33 is ensured, in particular also in a pre-drying zone 35 adjoining the coating station 34, in which the applied coating layer is pre-dried at least to the extent that the coating no longer runs or drips by the action of heat or infrared.
  • the predrying zone 35 extends to the end of the longitudinal conveyor section 7.
  • the cassettes 11 are moved by a drying oven 36 which has infrared radiators 37 above and below the path of movement of the cassettes 11.
  • the cassettes 11 with the dried melts 1 then arrive at the longitudinal conveyor section 9, at which a plurality of coding stations 38, i.e. In the illustrated embodiment, a total of five coding stations 38 are provided in succession in the transport direction A.
  • a color ring is applied in each coding station 38, specifically by means of a painting wheel 23 ', which is narrower than the painting wheel 23 and is tapered on its circumference like a knife edge. All coding stations 38 are located on the longitudinal conveyor section 9.
  • the cassettes 11 are moved by a drying oven 39 corresponding to the drying oven 36.
  • an unloading station 40 is formed, at which the Melfs 1 of the respective cassette 11 are removed, which then finally arrives at the loading station 31 as they move further in the transport direction A.
  • the cassettes 11 and / or the guide profile for the cassettes on the longitudinal conveyor sections can also be designed differently than described, but while maintaining the basic principle that the melfs 1 arranged in the cassettes 11 move with their caps 3 when moving along the longitudinal conveyor sections pass on.
  • the cassettes 11 described above have the advantage that they are symmetrical both with respect to the central plane M2 and also essentially with respect to the central plane M1. Neither during predrying nor during drying can the cassettes 11 warp due to the action of heat.
  • the described profile of the strips 14 not only results in the possibility of simple and reliable guidance on the profile rail 20, but also results in a stable construction in mechanical and thermal terms for the cassettes 11.
  • transverse conveying sections 8 and 10 in several levels or floors so that the effective length of these transverse conveyor sections is variable, depending on the product and / or depending on the output.
  • cassettes 11 not only has the advantage that exact guidance is ensured with relatively simple structural means, but that the cassettes 11 and also the cassette guides on the conveyor sections can be easily cleaned. Furthermore, in the case of repairs or cleaning, it is possible to remove from the machine only those cassettes 11 which actually do cleaning or require repair, while the remaining cassettes 11 remain in the machine and the operation of the machine is not interrupted.

Landscapes

  • Spray Control Apparatus (AREA)
  • Coating Apparatus (AREA)

Abstract

La présente invention se rapporte à une machine (6) à vernir les melf, dans laquelle les melf (1) disposés dans les récepteurs d'un élément de transport (11) passent à l'aide de cet élément de transport (11), mû par l'intermédiaire d'un entraînement de transport, sur un circuit de transport fermé, dans un sens de transport, devant au moins un poste de vernissage (33, 34) et ensuite à travers au moins une zone de séchage (35), les melf (1) roulant au moins sur une section de transport se trouvant en aval du poste de vernissage (33, 34) dans le sens de transport, sur leurs extrémités en forme de capuchons (3), en tournant autour d'un axe longitudinal situé transversalement au sens de transport, sur une surface de cette section de transport.
PCT/DE1992/000221 1991-03-19 1992-03-16 Machine a vernir les melf WO1992016305A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9103353U DE9103353U1 (de) 1991-03-19 1991-03-19 Melf-Lackiermaschine
DEG9103353.5U 1991-03-19

Publications (1)

Publication Number Publication Date
WO1992016305A1 true WO1992016305A1 (fr) 1992-10-01

Family

ID=6865443

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1992/000221 WO1992016305A1 (fr) 1991-03-19 1992-03-16 Machine a vernir les melf

Country Status (2)

Country Link
DE (1) DE9103353U1 (fr)
WO (1) WO1992016305A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103311206A (zh) * 2013-05-23 2013-09-18 华为技术有限公司 封装有焊端环的电子器件及具有该电子器件的电子设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382574A (en) * 1964-11-10 1968-05-14 Air Reduction Method of making an electrical resistor
FR1600638A (fr) * 1968-12-31 1970-07-27
US4598821A (en) * 1983-11-07 1986-07-08 Phase Industries Inc. Holder assembly for miniature electronic components and method of fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382574A (en) * 1964-11-10 1968-05-14 Air Reduction Method of making an electrical resistor
FR1600638A (fr) * 1968-12-31 1970-07-27
US4598821A (en) * 1983-11-07 1986-07-08 Phase Industries Inc. Holder assembly for miniature electronic components and method of fabrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103311206A (zh) * 2013-05-23 2013-09-18 华为技术有限公司 封装有焊端环的电子器件及具有该电子器件的电子设备

Also Published As

Publication number Publication date
DE9103353U1 (de) 1991-06-20

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