EP0228686B1 - Presse à rivetage pour placer sur un support des éléments fonctionnels de mercerie tels que parties de boutons-pression - Google Patents

Presse à rivetage pour placer sur un support des éléments fonctionnels de mercerie tels que parties de boutons-pression Download PDF

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Publication number
EP0228686B1
EP0228686B1 EP86117829A EP86117829A EP0228686B1 EP 0228686 B1 EP0228686 B1 EP 0228686B1 EP 86117829 A EP86117829 A EP 86117829A EP 86117829 A EP86117829 A EP 86117829A EP 0228686 B1 EP0228686 B1 EP 0228686B1
Authority
EP
European Patent Office
Prior art keywords
pressure
valve
control
piston
riveting
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP86117829A
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German (de)
English (en)
Other versions
EP0228686A2 (fr
EP0228686A3 (en
Inventor
Ernst Herten
Wilhelm Eiringhaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
William Prym Werke GmbH and Co KG
William Prym GmbH and Co KG
Original Assignee
William Prym Werke GmbH and Co KG
William Prym GmbH and Co KG
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 William Prym Werke GmbH and Co KG, William Prym GmbH and Co KG filed Critical William Prym Werke GmbH and Co KG
Publication of EP0228686A2 publication Critical patent/EP0228686A2/fr
Publication of EP0228686A3 publication Critical patent/EP0228686A3/de
Application granted granted Critical
Publication of EP0228686B1 publication Critical patent/EP0228686B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/28—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups
    • B21J15/285—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups for controlling the rivet upset cycle
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H37/00—Machines, appliances or methods for setting fastener-elements on garments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/28—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups

Definitions

  • the invention is directed to a rivet press of the type mentioned in the preamble of claim I.
  • the upper tool is constructed in two parts and comprises lifting pliers which have an upper element, such as a push-button part, received by feed means in its top dead center position and initially positioned on the carrier, such as a piece of clothing, during its working stroke.
  • a protective device is effective that rules out that a finger or other obstacle is accidentally in the stroke.
  • an upper punch belonging to the upper tool becomes effective, which executes the deformations required for riveting between the upper element and the lower element positioned by the lower tool.
  • Both the stroke movement of the upper punch and the phase-shifted stroke movement of the pliers are carried out by an electric drive via their own eccentrics. Such a forced control of both lifting movements is expensive and cannot be easily used for processing different carriers and matching fasteners. The press had to be converted for this.
  • the invention has for its object to develop an inexpensive, reliable riveting press of the type mentioned in the preamble, which allows any carrier and fasteners to be processed properly and thereby reliably prevents incorrect riveting. This is achieved according to the invention by the measures specified in the characterizing part of claim I, which have the following meaning:
  • the lifting movement of the pliers is simply caused by the muscular strength of the operator, for which a simple pedal is sufficient, which allows the pliers to be moved up and down against a return spring. Costly automatic mechanical controls are no longer necessary. However, this actuation is also energy-saving and does not stress the operator because the actual riveting work of the upper punch is carried out pneumatically.
  • the pliers also take on the task of controlling the pneumatic lifting drive of the upper punch via cams that are connected to it. This achieves a movement that is precisely coordinated with one another between the pliers positioning the upper element on the one hand and the upper punch performing the riveting work on the other hand.
  • the pulse valve with associated control means ensures a high rivet quality, regardless of how long the operator actuates the pedal for the lifting movement of the pliers.
  • the pressure on the piston side of the cylinder is monitored and the control pressure is only supplied to the pulse valve for initiating the upward movement of the upper plunger when a certain minimum pressure has been reached on the piston side of the cylinder.
  • This minimum pressure is set in such a way that the fastening element is driven through with certainty even with thick supports and experiences an ideal rivet-like deformation with the associated functional part.
  • the monitored minimum pressure will not be reached and consequently the impulse valve will not be reversed, even if the pliers have returned to their top dead center position by releasing the pedal and are in themselves ready to set the control pressure for the Reversal of the pulse valve to deliver.
  • This control pressure is blocked until the minimum pressure in the cylinder has built up.
  • the impulse valve is first moved into its other working position, which allows the upper punch to move upward. This ensures that the material is always fully deformed during the riveting process.
  • the upper stamp will not reverse from its bottom dead center position either too early or too late.
  • Claim 4 provides a particularly simple design of the riveting press, because the upward stroke is simply effected by spring force. However, it has proven to be particularly advantageous to also control the timing of the upward stroke, which is why the measures of claim 5 are then applied, where the upward movement of the upper punch is also pneumatically effected by the pulse valve.
  • FIG. 3 shows the starting position of the riveting press according to the invention, which consists of a two-part upper tool II and a two-part lower tool 13.
  • the upper tool II consists of an upper punch 15 which, as FIG. 1A shows, sits on the piston rod 56 of a pneumatic piston-cylinder drive 12 and can therefore be moved up and down pneumatically in the direction of the arrow 14.
  • the upper tool II also includes a pair of pliers 16 with two holding claws that have a functional element between them, e.g. hold a push button part 30.
  • the pliers 16 are attached via a head 18 to a control rod 19 which is guided parallel to the upper punch 15 and which in turn can carry out a lifting movement indicated by the arrow 20, which starts from a foot lever 40 and is transmitted via a coupling rod 47.
  • the control rod 19 is held in its top dead center position in FIG. 3 by a return spring 49.
  • the foot lever 40 must work against the return spring 49 and then performs the lifting movement 20 of the control rod 19 and thus the pliers 16.
  • the two-part lower tool 13 initially consists of a plate-shaped stage 21 on which a pair of lower jaws 59 which can be moved relative to one another is pivotably mounted, the upper side of which is useful as a table surface for placing a carrier 22 to be treated, e.g. a garment.
  • Carriers of various thicknesses 91 can be used, such as thick textile materials or thin plastic films.
  • the lower jaws 59 include a recess 24, in which a stationary lower punch 23 is arranged as the second tool part in alignment with the upper punch 15.
  • the complementary elements, namely fastening elements are individually arranged, such as bendable cramps, rollable or compressible rivets or insertable or deformable pins.
  • fastening means could already be part of the functional element located in the upper tool II, which is why complementary receiving means, such as perforated disks, caps or the like, are then used in the lower tool 13, which serve to anchor the fastening means passed through the carrier from above. It would also be possible to assign the functional and fastening elements 30, 31 between the upper and lower tools II, 13 in a mirror-image manner. The description then applies accordingly.
  • the fasteners used here usually have a "self-piercing" effect, i.e. they work their way through the material of the beam. during the riveting process.
  • both tools II, 13 are in their top dead center position, because the stage 21 in the lower tool 13 can also be moved together with the lower jaws 59 against the action of a spring, not shown, and the upper punch 15 is by the piston rod 56 in the cylinder 17 of the drive 12, as can be seen in FIG. 1A, in its inserted uppermost position.
  • the upper and lower elements 30, 31 are made from supply containers 32, 32 'via supply channels, not shown, which are shown in FIG.
  • IA are shown, and lead to loading devices, not shown in more detail, which in the front view of FIG. 3 lie behind the pliers 16 or the lower jaws 59 and the elements in this aligned position piece by piece into the recess 24 or a receiving nest 25 of the pliers 16 convict.
  • loading devices not shown in more detail, which in the front view of FIG. 3 lie behind the pliers 16 or the lower jaws 59 and the elements in this aligned position piece by piece into the recess 24 or a receiving nest 25 of the pliers 16 convict.
  • the storage containers 32, 32 'consist of vibrating conveyors, the power supply 36 with the lines 41, 42, 43 and switches 50, 46 is indicated.
  • the pneumatic lifting drive 12 is controlled by the pneumatic circuit 70 shown in FIGS. 1A and 1B.
  • air pressure is fed from a compressed air connection 60 via an adjustable pressure control valve 68 to a distributor 69, where two control valves 100, 100 'are connected via two lines 99, 99' and a supply line 71 for compressed air to a pulse valve 72 which can be converted into two working positions is fed.
  • the compressed air passes through a valve channel 73 to a first outlet line 74, which leads the compressed air to the rod-side end 53 via a check valve 75, which is why the pressure 51 can build up in the cylinder 17 on the rod side, which pushes the piston 52 into the position shown in FIG IA holds the top dead center position shown pressed.
  • the valve body 76 in the check valve 75 is in a position closing a vent opening 77, to which a silencer 78 is connected.
  • the piston-side cylinder end 53 ' is connected via a similar check valve 75' to a line 79 which leads to a distributor 80.
  • the associated valve body 76 ' closes this compressed air line 79 and keeps the associated ventilation opening 77' open via a silencer 78 '.
  • a second outlet line 74 ′ of the impulse valve 72 leads from the distributor piece 80 and leads via a second valve channel 73 ′ to a ventilation opening 82 equipped with a silencer 81. This will make the top manifold vented piece 80 with the connected lines 74 'and 83.
  • the foot lever 40 is actuated in the direction of the arrow of FIG. 3 and finally reaches the lowest position 40 "shown in FIG. 4, where the control rod is transferred to the associated position 19" via the coupling 47, which the tongs attached to it transferred into their bottom dead center position 16 " .
  • the tongs 16" touched the carrier and also transferred the platform into their bottom dead center position 21 "against a return spring, not mentioned, which has already been mentioned.
  • the lower jaws located on this stage 21 "have been taken along and have been transferred into the spreading position 59" shown in the sectional view of FIG. 4 by the lower punch 23 entering the recess between them.
  • the fastening element 31 located there is pressed through the carrier 22 and through a bottom opening into the interior of the function positioned by the pliers 16 " elements 30, such as a push button part, retracted.
  • a pair of cams 107, 107 ' is arranged on the control rod 19, the control surfaces of which are arranged at a defined distance 108 from one another. While the upper cam 107 was effective in FIG. 3, which will be described in more detail, in the bottom dead center position according to FIG. 4, the lower cam i07 'is effective in relation to the second control valve 100' already mentioned.
  • the control valve 100 ' is provided with a roller lever 101' which presses the valve body 102 'back against a return spring 103' and connects the connection line 99 'mentioned via a first valve channel 104' according to FIG. 2B to a control line 84 'which leads to the one side of the already mentioned pulse valve 72 of FIG. 1A leads.
  • the pulse valve is transferred to the other working position 72' of FIG. 2A and held there.
  • the supply line 71 now leads compressed air via a valve channel 85 via the second output line 74 'mentioned to the distributor 80 and from there via the compressed air line 79 to the piston-side cylinder end 53'.
  • the valve body 76 'of the check valve 75' there closes the vent opening 77 '.
  • the piston 52 is now under top pressure and executes its downward movement 14.
  • the rod-side cylinder end 53 is open to the ventilation opening 77 mentioned because the valve body 76 there now blocks the first output line 74 mentioned.
  • This outlet line 74 is connected to the ventilation opening 82 and the silencer 81 via a further valve channel 85 ′.
  • a further control line 84 On the opposite side of the pulse valve there is a further control line 84, which, however, in the case of the working position 72 'according to FIGS. 2A and 2B, is connected to a vent 86 of a pressure switching valve 87 and therefore the reversal mentioned in connection with FIG. 2A of the pulse valve in position 72 '.
  • the pressure switching valve 87 namely comprises a control slide 88, which is under the action of a return spring 89, which strives to hold a first slide channel 90 between the control line 84 and its vent opening 86.
  • the piston when executing its downward stroke 14, first reaches an intermediate position 52 ′ indicated by dash-dotted lines in FIG. 2A, which is shown in FIG. 4 in the intermediate position shown in FIG. Upper stamp 15 'affects.
  • the stamp 15 ' moves against the upper functional element 30, namely the push button part, and presses it out of the pliers located in its lower dead center position 16 ", which spreads somewhat, as in a comparison between FIG. 4 and the previously described FIG. 3
  • the functional element 30 is cup-shaped and therefore open at the top, which is why, as the downward stroke 14 continues, the upper punch 15 can penetrate into the interior of the element 30.
  • the pliers have performed their alignment function for the upper element 30 gripped by the punch 15 '.
  • the foot pedal no longer needs to be held in its depressed position 40 "of FIG. 4.
  • FIG. 2C a second valve channel 105' with the associated control line 84 ' is connected and this opens to a vent 106 ' .
  • the connecting line 99 ' is blocked; the control line 84 'is no longer supplied with compressed air.
  • FIG. 2A is still valid in the completion of FIG. 2A.
  • the extent to which the upper punch moves downward depends, as shown in FIG. 5, on the thickness 91 of the carrier material 22 and on the nature of the fastening element 31 with regard to length and material hardness.
  • the upper punch has to carry out different deformation work during the riveting process. This is optimally controlled by the pressure switching valve 87 already mentioned, which takes place in the following way:
  • a measuring line 83 goes from the distributor piece 80 to the pressure switching valve 87, specifically to a pressure switch 92.
  • the pressure switch 92 consists of a ver Slidable member 93, which is under the action of a compression spring 94, which is adjustable in its spring tension via an adjusting member 95, but normally keeps the guard member in its blocking position 93 shown in FIG. 2C. In this locked position, a channel 96 is not in alignment between a pressure input line 97 and a pressure output line 98. Although the pliers 16 are again in their top dead center position according to FIG. 5 and thus the roller lever 101 of the first control valve 100 is effectively set via the cam 107 , this has no influence for the reversal of the pulse valve from the working position 72 'of FIG. 2A.
  • the valve body 102 of the control valve 100 is moved back against its return spring 103, so that its first valve channel 104 connects the mentioned connecting line 99 coming from the distributor 69 to an output line 109, but the control slide 88 is still in its blocking position, which is why the pressure switching valve 87 outgoing control line 84 is not connected to it, but is connected to the vent 86.
  • the output line 99 branches off to the mentioned input line 97 of the pressure switch 92.
  • the control pressure coming from the control valve 100 is also present at the pressure switch 92 via this input line 97, it cannot yet reach its output line 98 because of the blocked position of its channel 96.
  • the desired minimum pressure for triggering the reversal of the pulse valve 72 can be adjusted to the most favorable value.
  • the upward stroke of the upper punch 15 is also carried out pneumatically via the pulse valve in its working position 72 according to FIG. 1A, as has been described.
  • the piston-side cylinder end 53 ' is expediently vented via the impulse valve 72, for which the check valve 75' and its vent opening 77 ' of FIG. 1A would then be unnecessary because the venting via the lines 79, 74' mentioned above Valve channel 73 'and the vent opening 82 can take place.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Forging (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (5)

1. Presse à riveter (10) équipée d'un outil supérieur et inférieur (11; 13) pour monter un article de mercerie à fonction (30) tel que pièce de bouton-pression, oeillet, crochet, tête de rivet ou assimilés sur un support (22) tel qu'un vêtement, par le biais d'un élément de fixation déformable (31) tel qu'un crampon cintrable, une tige de rivet écrasable, une goupille enfonçable ou assimilés,
dont l'outil supérieur à course verticale (11) se compose de deux parties,
d'une part d'une pince à course verticale (16) servant à positionner sur le support (22) un élément supérieur (30) tel qu'une pièce de bouton-pression, et d'autre part un poinçon (15) à course verticale pour l'opération de rivetage entre l'outil supérieur (30) et l'élément inférieur (31) positionné par l'outil inférieur (11; 13), caractérisée en ce que:
la course verticale (20) de la pince (16) est provoquée par la force musculaire, en particulier par l'actionnement d'une pédale (40), mais la course verticale (14, 14') du poinçon supérieur (15) est provoquée par le mouvement d'un vérin pneumatique (12),
contre la tige de piston (56) duquel est fixé le poinçon supérieur (15),
et en ce qu'une valve d'impulsion à actionnement pneumatique (72, 72') est réversible à volonté entre deux positions de travail,
l'extrémité (53') du vérin, côté tige du piston, se trouve reliée dans une position de travail (72') avec la source d'air comprimé (60) et, dans l'autre position, se trouve reliée avec un orifice de sortie (77'; 82) pour conférer le mouvement descendant ou montant (14) au poinçon supérieur (15),
en ce que la pince (16) 'comporte une paire de cames (107, 107') solidaires de son mouvement, l'une des cames (107), lorsque la pince se trouve au point mort haut (16), reliant une première valve-pilote (100) et l'autre came (107'), lorsque la pince se trouve au point mort bas (16"), reliant une seconde valve-pilote (100') alternativement avec la source d'air comprimé (60) et avec un orifice de sortie (105', 105),
en ce que les sorties des deux valves-pilotes (100, 100') fournissent certes la pression-pilote alternative (84, 84') nécessaire à l'inversion de marche (72, 72') de la valve d'impulsions,
mais la pression-pilote (84) au niveau de la valve d'impulsion (72'), nécessaire pour inverser le mouvement (14') du poinçon supérieur depuis son point mort haut (15"), n'étant autorisable que si précédemment la pression (51') montant dans le vérin (12) côté piston (53') et assurant l'opération de rivetage a atteint une valeur minimum précise.
2. Presse à riveter (10) selon revendication 1, caractérisée en ce que la pression minimum est réglable (95).
3. Presse à riveter selon revendication 1 ou 2, caractérisée en ce que la pression-pilote (84') commandant la position de travail de la valve d'impulsion pour le mouvement montant (14') du poinçon supérieur (15) provient d'une valve manométrique (87),
la valve manométrique (87) se compose d'une vanne de commande (88) normalement en position de barrage (89) et d'un contrôleur de pression (92) réagissant en présence de la pression minimum, lequel en réagissant déplace la vanne vers une position (88') où l'air comprimé-pilote (109) venant de la première valve de commande (100) peut passer (88'),
et en ce que le contrôleur de pression (92) est relié (80) à l'extrémité du vérin (53') côté piston par une conduite de mesure (83) captant la pression minimum.
4. Presse à riveter selon l'une ou plusieurs des revendications 1 à 3, caractérisée en ce que la course montante (14') du poinçon supérieur (15) relié à la tige de piston (56) est provoquée par la force élastique agissant sur le piston (52).
5. Presse à riveter selon l'une ou plusieurs des revendications 1 à 3, caractérisée en ce que
la valve d'impulsion, dans l'autre position de travail (72), relie (71, 73, 74) en même temps l'extrémité du vérin (53) côté tige de piston avec la source d'air comprimé (60), laquelle source provoque le mouvement montant (14') du poinçon supérieur (15)
et ventile (73', 82) les conduites (83, 80, 74') appartenant à l'extrémité du vérin côté piston (cf. la fig. 1 A).
EP86117829A 1986-01-04 1986-12-20 Presse à rivetage pour placer sur un support des éléments fonctionnels de mercerie tels que parties de boutons-pression Expired - Lifetime EP0228686B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3600102 1986-01-04
DE3600102 1986-01-04

Publications (3)

Publication Number Publication Date
EP0228686A2 EP0228686A2 (fr) 1987-07-15
EP0228686A3 EP0228686A3 (en) 1988-01-13
EP0228686B1 true EP0228686B1 (fr) 1990-03-07

Family

ID=6291410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117829A Expired - Lifetime EP0228686B1 (fr) 1986-01-04 1986-12-20 Presse à rivetage pour placer sur un support des éléments fonctionnels de mercerie tels que parties de boutons-pression

Country Status (2)

Country Link
EP (1) EP0228686B1 (fr)
DE (1) DE3669384D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104741500B (zh) * 2015-03-26 2016-08-17 歌尔声学股份有限公司 全气路控制的半自动铆接设备及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1091061A (en) * 1963-08-15 1967-11-15 Lucas Industries Ltd Air-operated presses
GB1377495A (en) * 1972-04-12 1974-12-18 South Wales Switchgear Pneumatically controlled machine
DE2341258A1 (de) * 1973-08-16 1975-02-27 Schaeffer Homberg Gmbh Maschine zum ansetzen von nieten, druckknoepfen oder dergleichen
DE2556516C2 (de) * 1975-12-16 1985-03-28 William Prym-Werke Kg, 5190 Stolberg Arbeitsmaschine mit einem gegen ein Unterwerkzeug bewegbaren Oberwerkzeug
DE2732931A1 (de) * 1977-07-21 1979-02-01 Schaeffer Homberg Gmbh Maschine zum ansetzen von nieten, knoepfen o.dgl.
DE2806997A1 (de) * 1978-02-18 1979-09-13 Prym Werke William Ansetzpresse mit fingerschutz

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Publication number Publication date
EP0228686A2 (fr) 1987-07-15
DE3669384D1 (de) 1990-04-12
EP0228686A3 (en) 1988-01-13

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