EP4086010B1

EP4086010B1 - Hanger

Info

Publication number: EP4086010B1
Application number: EP21461635.1A
Authority: EP
Inventors: Jerzy BULAWA; Konrad ZIELINSKI; Artur Ston
Original assignee: Fabryka Opakowan Kosmetycznych "pollena" Spolka Akcyjna
Current assignee: Fabryka Opakowan Kosmetycznych "pollena" Spolka Akcyjna
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2024-05-15
Anticipated expiration: 2041-12-14
Also published as: PL4086010T3; EP4086010C0; EP4086010A1

Description

Technical field

The invention provides a hanger which is a device used in surface finishing processes, in particular lacquering and metallization, of manufactured pieces with the use of a production line.

Prior art

In the prior art there are known solutions being frame systems or hangers in rails used in productions lines, that enable holding pieces subjected to processing and facilitate passage through an automated process. Another solution used consists of rotatable grips or stands to enable uniform distribution of a lacquer or metallizing layer.
US publication US 20120321788 A1 discloses a system for forming layers, comprising a base rotatably around a central axis, where grip gear wheels arranged thereon may rotate around the base axis. The teeth of at least two adjacent gear wheels at least partially overlap. A central gear wheel which is coupled with grip gear wheels may cause rotation of these wheels, while they rotate around the base axis.
German publication DE 102010047496 B4 discloses a device that has a rotational table on which a planetary gear is rotationally supported, and between the sun wheel of the planetary gear and the table a permanent connection is provided. An inner gear wheel is rotationally supported by a bearing on the sun wheel, and a rotational bearing is arranged in the inner wheel. The substrate grip and the inner gear do not form rotation individually and they correspondingly rotate around an axis during constant holding of the table and/or during rotational motion of the table relative to a driving plate, driving shaft or driving wheel.
Taiwan publication TW 201708589 A discloses a rotational grip mechanism of a device for coating a material, comprising a driving unit, a stand unit and a plurality of grip rotational units. The stand is provided with a rotational base and a plurality of rotational rods and supporting rods. During coating operation the rotational base rotaries driven by the driving unit, each rotational rod drives a platform in a clockwise direction. A gear positioned on a platform is slidingly movable by a first group of switching rods to generate a turn in a counterclockwise direction, and grips are slidable by second groups of switching rods to generate a turn in a clockwise direction.
Chinese document CN108588806A discloses rotating electroplating hanger. The driving motor drives the plastic movable turntable to rotate through a chain transmission mechanism composed of the driving sprocket and drives the middle copper sleeve and rotates plastic movable turntable, which drives the metal hook mounting shafts. During this process, the fixed mounting shaft and the plastic sun gear remain stationary. The turntable drives the plastic planetary gears to revolve around the plastic sun gear through the metal hook mounting shafts, and since the plastic planetary gears respectively mesh with the plastic sun gear, the plastic planetary gears revolve. During operation, the electroplating workpiece is hooked on the metal workpiece hook.
Japanese document JPS58135473U discloses an electrolytic treatment apparatus comprising a support means for supporting said support means and said support means being adapted to perform planetary movement. Workpieces are attached to rotating shafts being support means. Rotating shafts are inserted into planetary gears and sun gear. The movement starts by revolving shaft which rotates rotating shafts with attached workpieces and those rotating shafts rotate inside planetary gears.
The Applicant has used a device in a form of a hanger with a single piece grip, mounted on a rail, being a part of a production process, onto which hanger a piece subject to metallization or lacquering process has been placed. In the process of applying layers the hanger has been making a rotational movement around the axis of the piece.
In the known solutions singular pieces are subject to the process and this increases the duration time of the production process and low production effectiveness.
With regard to the above, it is the aim of the invention to propose of a construction of a hanger that enables applying finishing layer on several pieces while providing uniform distribution of the lacquer of metallizing layer applied. Such a hanger may be additionally used in lieu of earlier singular hangers, without the necessity to replace the entire production machine stock.

Summary of the invention

The invention provides a hanger comprising a central wheel, at least one satellite gear wheel, at least one workpiece grip, a housing. The hanger is characterized in that the central wheel is seated immovably on an upper end of the central wheel sleeve. The central wheel sleeve is in its bottom portion attached to a carrier element. A driving shaft is arranged in the central wheel sleeve. The driving shaft is in its bottom portion connected to a driving element and in its upper portion the driving shaft is fixed relative to the housing. The hanger comprises at least one workpiece grip which is immovably attached to a mounting roll of a satellite gear wheel which is bearing-seated in the housing. Each satellite gear wheel is seated immovably in another mounting roll of the satellite gear wheel. Each satellite gear wheel interact with the central wheel. Preferably, the driving element is a driving disc.
Preferably, the driving disc is connected to a belt transmission.
Preferably, the housing comprises an upper portion of the housing and a bottom portion of the housing connected to each other.
Preferably, between the upper portion of the housing and the bottom portion of the housing there is a spacer.
Preferably, through the spacer connection of the upper portion of the housing and the bottom portion of the housing passes.
Preferably, the connection of the upper portion of the housing and the bottom portion of the housing comprises a releasable connection, preferably a screw connection.
Preferably, the satellite gear wheel has a smaller diameter than the central wheel.
Preferably, the connection of the upper portion of the housing with the driving shaft comprises a releasable connection, preferably a screw connection.
Preferably, the number of the satellite gear wheels is less than five, preferably there are five of them.
Preferably, between the housing and the driving shaft there is a sleeve that comprises a sleeve, which sleeve is attached immovably to the driving sleeve, and the sleeve is preferably welded to the driving shaft.
Preferably, the mounting roll of the satellite gear wheel is bearing-seated in the housing through at least one mounting roll sleeve.
Preferably, at least one of the mounting roll sleeves is made of Teflon.
Preferably, the carrier element is a carrier rail.
Preferably, the bottom portion of the driving shaft is releasably connected to a driving element.
Preferably, the grip has a shape of a non-through hollow cylinder which in its bottom portion has a smaller diameter, and the cylinder in its bottom portion above a smaller diameter has a flange, and at the bottom of the hollow space there is a through hole, and the grip is connected to a mounting roll of a satellite gear wheel by a grip screw passing through a through hole.

Beneficial effects of the invention

The subject invention improves lacquering or metallizing process. It enables increase of the number of pieces being processed, said pieces being positioned on rotatable grips of the hanger. The hanger being subject-matter of the invention provides also uniform coating of the surface finishing layer while making rotational movement.
The invention allows for a greater effectiveness of the process and this in turn causes cost savings. The hanger may be additionally used in place of the earlier singular hangers, without the necessity to replace the entire production machine stock.

Brief description of the drawing

The invention will be presented below in a preferable embodiment thereof, with reference to the attached drawings where:

Fig. 1 - shows a single hanger along with the piece being processed, in an isometric view,
Fig. 2 - shows a longitudinal section of a single hanger,
Fig. 3 - shows a single hanger, in a top view,
Fig. 4 - shows single hangers mounted on a carrier rail along with the pieces being processed, in an isometric view,

Detailed specification of a preferable embodiment of the invention

With regard to the attached Figs. 1-4, now technical aspects of the hanger being object of the invention will be explained.
Fig. 1 shows, in a perspective view, a hanger (1) along with a piece (2) placed on one of the workpiece grips (10). Each placed piece (2) is subject to lacquering or metallization process. In an embodiment the most preferable number is five for the workpiece grips (10), which number has been selected based on the size of the piece (2).
According to the embodiment shown in Fig. 2, the hanger (1) is constructed of a driving shaft (8) along with a central wheel sleeve (7) positioned thereon, a housing (23) and a driving element (9).
Inside the housing (23), the upper portion (8a) of the driving shaft (8) is immovably secured to the housing (23). In the embodiment according to Fig. 2 the driving shaft (8) is welded with the sleeve (22) so that the flange (22a) of the sleeve (22) abuts the upper portion (7a) of the central wheel sleeve (7). The housing (23) in an embodiment is constructed of an upper portion (20) of the housing and a lower portion (21) of the housing. The upper portion (20) of the housing, as seen in Fig. 2, abuts the welded sleeve (22) and is pressed by a screw connection effected by means of a washer (16) and a screw (17), the connection being threaded. Mounting of the upper portion (20) of the housing to the bottom portion (21) of the housing is effected here by a screw connection, by means of a screw (14) and a nut (15), and a person skilled in the art will be aware of existence of other possibilities for the connection of the parts of the housing. The distance between the two parts of the housing (23) and stabilization of the connection, in one embodiment, are provided by a spacer (13), nevertheless a person skilled in the art will be aware that the same effect may be obtained by means of other technical solutions such as suitable shaping of the housing (21).
The central wheel (6) is seated immovably on the upper portion (7a) of the central wheel sleeve (7). Through the housing (23) there pass five openings for mounting of the workpiece grips (10), arranged on the perimeter of a circle, smaller than the diameter of the housing (23), the circle being concentric with the diameter of the housing (23). Mounting of a workpiece grip (10) is effected by securing immovably a satellite gear gear (3) on a mounting roll (4) of the satellite gear wheel, bearing-seated, in the embodiment according to Fig. 2, in the housing (23) at two ends via Teflon mounting roll sleeves (5). The piece grip is connected, by a screw (threaded) connection embodied by means of a screw (12), to the mounting roll (4) of the satellite gear wheel. Between a workpiece grip (10) and the mounting roll (4) of the satellite gear wheel a shielding washer (11) is arranged.
As it may be seen in Fig. 3, the central wheel (6) interact with satellite gear wheels (3). The presented embodiment in Fig. 3 shows a satellite gear wheel (3) of a smaller diameter than the central wheel (6). The transmission ratio used therein causes that the satellite gear wheels (3) make more revolutions than the central wheel (6).
In the presented embodiment in Fig. 2, construction of a workpiece grip (10) is made compatible with size of the piece (2). The grip is constructed of a non-through hollow cylinder which in its bottom portion has a base of a smaller diameter and the cylinder in its bottom has a flange which acts as a base for the piece (2). At the bottom of the hollow space of the cylinder there is a through hole for the screw connection.
Imparting of rotational movement of the hanger (1) is effected by a driving element which is connected to an external mechanism. In the presented embodiment, the driving element is a driving disc (9) connected to a belt transmission. The driving disc (9) is mounted in the bottom portion (8b) of the driving shaft (8). This connection in the embodiment seen in Fig. 2 comprises a releasably threaded connection, by means of a washer (18) and a nut (19). In the embodiment seen in Fig. 4, several hangers (1) are mounted on a carrier element (24) being a carrier rail. The earlier type of the hanger along with the carrier element (24) is presented in Fig. 5. The object of the invention is characterized by its flexibility and it may be used in an existing production line, without any need for modification of other elements.
The operation mode of the hanger (1) for lacquering or metallization is as follows. The driving disc (9) moved by the belt transmission, during the passage of the carrier element (24) on the lacquering or metallizing line, causes rotation of the driving shaft (8). The central wheel sleeve (7), secured to the carrier element (24), along with the central wheel (6) positioned thereon, remains motionless. The driving shaft (9) causes rotation of the housing (23) and thus movement of the satellite gear wheels (3) around their axes. The satellite gear wheels (3) cooperating with the central wheel (6) are moving on around the immovable central wheel (6) and cause rotation of the mounting rolls (4) of the satellite gear wheels around their axes along with the workpiece grips (10).

List of reference marks

1 - hanger
2 - piece
3 - satellite gear wheel
4 - mounting roll of the satellite gear wheel
5 - mounting roll sleeve
6 - central wheel
7 - central wheel sleeve
7a - upper portion of the central wheel sleeve
7b - bottom portion of the central wheel sleeve
8 - driving shaft
8a - upper portion of the driving shaft
8b - bottom portion of the driving shaft
9 - driving disk
10 - workpiece grip
11 - shielding washer
12 - screw
13 - spacer
14 - screw
15 - nut
16 - washer
17 - screw
18 - washer
19 - nut
20 - upper portion of the housing
21 - bottom portion of the housing
22 - sleeve
22a - sleeve flange
23 - housing
24 - carrier element

Claims

A hanger, comprising:
a central wheel (6),

at least one satellite gear wheel (3),

at least one workpiece grip (10),

a housing (23),

wherein the central wheel (6) is seated immovably on an upper end (7a) of a central wheel sleeve (7), where the central wheel sleeve (7) in a bottom portion (7b) is secured to a carrier element (24), and a driving shaft (8) is accommodated within the central wheel sleeve (7), and the driving shaft (8) in a bottom portion (8b) is connected to a driving element and an upper portion (8a) of the driving shaft (8) is secured immovably to the housing (23);

wherein each of the at least one workpiece grip (10) is fixed relative to a mounting roll (4) of the satellite gear wheel which is bearing-seated in the housing (12);

wherein each satellite gear wheel (3) is secured immovably on a different mounting roll (4) of the satellite gear wheel, and each satellite gear wheel (3) interact with the central wheel (6).
Hanger according to claim 1, characterized in that the driving element is a driving disc (9).
Hanger according to claim 2, characterized in that the driving disc (9) is connected to a belt transmission.
Hanger according to claim 1, characterized in that the housing (23) comprises an upper portion (20) of the housing and a bottom portion (21) of the housing, connected to each other.
Hanger according to claims 1 and 4, characterized in that between the upper portion (20) of the housing and the bottom portion (21) of the housing there is a spacer (13).
Hanger according to claim 5, characterized in that through the spacer (13) the connection of the upper portion (20) of the housing and the bottom portion (21) of the housing passes.
Hanger according to claims 4 and 6, characterized in that the connection of the upper portion (20) of the housing and the bottom portion (21) of the housing comprises a releasable connection, preferably a screw connection.
Hanger according to claim 1, characterized in that the satellite gear wheel (3) has a smaller diameter than the central wheel (6).
Hanger according to claim 4, characterized in that the connection of the upper portion (20) of the housing to the driving shaft (8) comprises a releasable connection, preferably a screw connection
Hanger (1) according to claim 1, characterized in that the satellite gear wheels (3) are less than five, and preferably there are five of them.
Hanger according to claim 1, characterized in that between the housing (23) and the driving shaft (8) there is a sleeve (22) comprising a flange (22a), where the sleeve (22) is secured immovably to the driving shaft (8), and the sleeve (22) is preferably welded to the driving shaft (8).
Hanger according to claim 1, characterized in that the mounting roll (4) of the satellite gear wheel is bearing-seated in the housing (23) via a mounting roll sleeve (5), and preferably at least one mounting roll sleeve (5) is made of Teflon.
Hanger according to claim 1, characterized in that the carrier element (24) is a carrier rail.
Hanger according to claim 1, characterized in that the bottom portion (8b) of the driving shaft (8) is releasably connected to the driving element.
Hanger according to claim 1, characterized in that the grip (10) has a shape of a non-through hollow cylinder, which in its bottom portion has a smaller diameter, and the cylinder in its bottom portion above a smaller diameter has a flange, and at the bottom of the hollow space there is a through hole, and the grip (10) is connected to a mounting roll (4) of the satellite gear wheel by a grip screw (12) passing through the through hole.