EP3744478B1 - Dispositif de maintien pour un appareil de sablage - Google Patents

Dispositif de maintien pour un appareil de sablage Download PDF

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Publication number
EP3744478B1
EP3744478B1 EP19177344.9A EP19177344A EP3744478B1 EP 3744478 B1 EP3744478 B1 EP 3744478B1 EP 19177344 A EP19177344 A EP 19177344A EP 3744478 B1 EP3744478 B1 EP 3744478B1
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EP
European Patent Office
Prior art keywords
turntable
receiving
friction wheel
receiving part
drive
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.)
Active
Application number
EP19177344.9A
Other languages
German (de)
English (en)
Other versions
EP3744478A1 (fr
Inventor
Franz Illing
Alexander Leibig
Tomas Mainx
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.)
Paul Auer GmbH
Original Assignee
Paul Auer GmbH
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Filing date
Publication date
Application filed by Paul Auer GmbH filed Critical Paul Auer GmbH
Priority to EP19177344.9A priority Critical patent/EP3744478B1/fr
Publication of EP3744478A1 publication Critical patent/EP3744478A1/fr
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Publication of EP3744478B1 publication Critical patent/EP3744478B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
    • B24C3/20—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by turntables

Definitions

  • the invention relates to a receiving device for a sandblasting system with a blasting room in which the objects to be blasted can be placed on the adjustable or rotatable receiving device and processed using blasting media, with at least the receiving device being able to be adjusted or rotated using a drive device,
  • the Recording device comprises a turntable which is driven continuously or stepwise, and has numerous spaced-apart receiving parts for the object to be irradiated, which receiving parts can be driven via a further drive device.
  • a device for blasting or blasting objects such as components, tools, household items, pots, pans or the like, with a blasting agent depot for receiving a blasting agent is generally known, which is connected via at least one line to a blasting nozzle that extends into a blasting room , in which the objects to be irradiated can be introduced and irradiated.
  • the pamphlet US 9,248,546 B1 which is considered to be the closest prior art to the subject-matter of claim 1 comprises a belt and pulley system for a separate processing assembly.
  • the part is held on a spindle assembly of the belt and pulley system and rotation of the spindle assembly is driven by a drive belt of the belt and pulley system moving along a belt path.
  • the belt and pulley system includes one or more idler pulleys that allow the drive belt to rotate continuously, regardless of whether a part is being machined. While a part is being processed, processing material, such as blasting material, can be introduced near the belt and pulley system and the operation inadvertently interfere with the belt-pulley system.
  • the idler assembly of the belt and pulley system includes a vane sweep configured to block or prevent introduction of the preparatory material into the functional operation of a circular pulley of the idler assembly.
  • the blade sweep includes an upper edge that prevents the introduction of blasting material into a rotational opening of the circular pulley and one or more ribs configured to wipe or brush accumulated processing material from the circular pulley.
  • the wing sweeper further includes an annular sleeve extending away from the circular pulley and surrounding a support member that supports or holds the circular pulley, the annular sleeve being configured to contain the processing material interfering with the rotational operation of the circular pulley is prevented.
  • the position of the idler assemblies within the belt and pulley system can be determined to optimize the number of spindle assemblies that can be used to process parts simultaneously in the part processing assembly.
  • the pamphlet U.S. 2,315,546A shows a blasting device with a blasting cabinet in which a turntable is arranged, on which several parts can be arranged and blasted with a suitable blasting material.
  • the pamphlet EP 3 421 176 A1 shows an apparatus having a turntable that rotates about an axis of revolution and a holding mechanism that moves with the turntable.
  • the invention is based on the object of designing a receiving device with a receiving part for an object to be processed in such a way that loading and unloading of the object to be processed is largely guaranteed in exactly the same position and orientation in the area of the loading position.
  • the object is achieved by a recording device with the features of patent claim 1.
  • the receiving parts are designed as turntables, which are arranged at a distance from one another on the receiving devices and are driven individually or together, with the aid of the additional drive device, about an upright axis in steps or continuously, that the turntable has a friction wheel with a stop roller which, when it leaves the belt and is therefore freely rotating, rests against a cam disk or friction wheel disk arranged on the receiving device and runs along it, forcibly rotating the turntable and aligning it in such a way that the turntable returns to its original position for receiving at least one new object to be processed. This ensures a clear alignment and absolute repeatability of the time-saving work process.
  • the entire system works less susceptible to faults, reliably and quietly with the help of the rubber stop in the stop curve.
  • the receiving parts can be returned to their original receiving position with the aid of a control device and/or adjusting device having a cam disk or friction wheel disk.
  • the loading of the receiving part is not only possible manually, but also by a robot, since the receiving part can always be brought exactly into the same receiving position in the area of the loading position.
  • the drive device is designed as a timing gear.
  • stop roller is in a position of the turntable opposite a movable cam tip of the cam disk or stop curve and that the friction wheel creates a non-positive connection between the friction wheel disk, runs along it and prevents the receiving part, Turntable or satellite prevented, wherein the friction wheel has a flattening, which interrupts the non-positive connection between the friction wheel and the friction wheel disk and ensures that the receiving part remains in an angular range.
  • turntables are each equipped with a drive pulley which is drive-connected to a belt drive.
  • a drive pulley which is drive-connected to a belt drive.
  • turntables are each equipped with a drive disk and a friction wheel disk and the workpiece to be machined is placed on the satellite or turntable and the recording device can be moved clockwise with the turntable through the blasting room, whereby with the help the additional drive device and an associated drive belt, which is kept under tension by a belt tensioner, the turntable is additionally rotated about its own axis and the receiving device is arranged in such a way that the receiving part or turntable can be detached from the drive connection of the drive belt with the aid of a belt deflection and this constellation receiving part or turntable are freely rotatable.
  • the turntable with a belt pulley and the friction wheel with a flat area and the stop roller forms a structural unit which is rotatably mounted on the receiving device or rotary table and when rotating the receiving device can assume such a position relative to the stop disk or friction wheel disk that the receiving part and the stop roller come to rest against the stop cam and, with continued rotation of the receiving device, the receiving part can be adjusted into the original receiving position for receiving a new object to be processed.
  • an adjusting device is provided which, with the aid of an adjustable aligner, causes the receiving part to be precisely aligned in its original receiving position for receiving a new object to be processed.
  • the aligner when the receiving part is in a certain position, the aligner is pressed pneumatically, hydraulically, electrically and/or automatically against the receiving part, thereby bringing the receiving part exactly into its original position for receiving a new object to be processed.
  • the aligner is designed as a lever arm, which is pivotably accommodated in a holder and connected to an actuating cylinder, which brings the lever arm into operative connection with the receiving part and moves the receiving part into the original position for receiving a new object to be processed.
  • In 1 designates a receiving device 2 for a sandblasting system 1 with a blasting room 3, on which the objects to be blasted can be placed on the adjustable or rotatable receiving device 2 and processed with the aid of blasting media, with at least the receiving device 2 using a drive device having a drive shaft 9 7 can be adjusted or rotated, with the drive shaft 9 being connected in a torque-proof manner to the drive device 7 via a claw coupling.
  • the receiving device 2 is designed as a turntable, can be driven continuously or stepwise and accommodate numerous spaced-apart receiving parts 25 rotatable about an axis.
  • the receiving device 2 is equipped with a position code 13, which is read out electronically and is thereby recognized where which receiving part is located.
  • the receiving parts 25 serve to receive objects to be blasted, which are transported into the blasting room 3 .
  • the receiving parts 25 are driven by a further drive device 10 in particular before or during or after the processing and before the removal of the irradiated object and are returned to their original receiving position with the aid of a control device and/or adjusting device.
  • the workflow of irradiation and transportation of the charging stations is as follows: In the area of the loading position 4, the workpiece to be machined is placed on the receiving part 25, which is rotatably arranged on the turntable 3a and moves clockwise step by step through the blasting chamber 3.
  • the receiving parts 25 rotate with the aid of a further drive device 10 and the associated drive belt 12, with the belt tensioner 14, which is operatively connected to the drive device 10, keeping the drive belt 12 taut so that the receiving part 25 can rotate about its upright axis.
  • the receiving part 25 can arrive in the area of the loading position 4 in any position. However, if loading is carried out with a robot, the receiving part 25 must be precisely aligned in a position specified, for example by the customer, so that the workpiece can always be placed on the receiving part 25 in the previously determined position.
  • a cam disk 18 or friction wheel disk 18b is used to align the receiving part 25 from a certain position Figures 5 to 8 used so that the receiving part 25, using a small friction wheel 20 with a Flattening 20b is equipped, rolls on a cam 18 or friction wheel 18b.
  • the receiving part 25 is already aligned in a smaller angular range as a result of the rolling process. With the help of the flattening 20b, however, the non-positive connection between the friction wheel 20 and the friction wheel disk 18b is interrupted. This ensures that the receiving part 25 can be brought into its desired end position.
  • the receiving part 25 runs along the cam disk in such a way that it does not have to be further aligned since the stop roller 22 runs only a little along the movable cam tip 32 . Turning back the receiving part 25 too far is not possible, since from the position according to FIG 6 the friction wheel 20 engages again and thus receives a slight angular momentum. Thus, the flattening 20b always remains aligned in the desired position in the area of the friction wheel curve 18b.
  • the receiving part 25 arrives in such a way that the friction wheel 20 comes into contact with the receiving part 25 and with the friction wheel disk 18b, the receiving part 25 rolls off the friction wheel disk 18b and the receiving part 25 rotates as a result of the rotary movement of the turntable 3a Stop roller 22 only after the peak of the curve 32.
  • the receiving part 25 arrives in such a way that it comes into contact with the tip of the friction wheel 20 on the friction wheel disk 18b and thereby rolls off. Now the stop roller 22 still has the opportunity to pivot past the movable tip of the curve 32 and as in the situation according to FIG 7 hitting the stop rubber 16 in the stop curve 15.
  • the pressure should not build up too much between the receiving part 25 and the tip of the curve 15 and the movable tip of the curve 32 should fulfill a damping function with the help of a rubber buffer 33, so that the receiving part 25 does not swing away abruptly when the pressure is too high.
  • the receiving parts 25 are precisely aligned.
  • An exact alignment of the receiving part 25 is possible by means of an adjusting device 34 .
  • the adjusting device 34 is, for example, a pneumatic aligner 17 which is provided in the area of the outer boundary or periphery of the cam disk 18 or the friction wheel disk 18b.
  • the adjustable aligner 17 can be used to precisely align the receiving part 25 into its original receiving position for receiving a new be effected to be irradiated object.
  • the aligner 17 presses pneumatically, hydraulically, electrically and/or automatically against the receiving part 25 and thereby brings it exactly into its original position for receiving another object to be irradiated.
  • the aligner 17 is designed as a lever arm which is pivotally received in a holder 30 and connected to an actuating cylinder 27 which can bring the lever arm into operative connection with the receiving part 25 and move the receiving part 25 into the original position for receiving objects to be newly irradiated can.
  • the aligner 17 is arranged on a plate 30 and its position can be adjusted somewhat to the right or left in relation to the turntable 3a in such a way that the lever arm 28 can press the receiving part 25 exactly into the desired angular position when it rests (see FIG Figures 3 , 5 , 10 ).
  • the loading of the receiving part 25 is also possible by a robot, since the receiving part 25 can always be brought exactly into the same end position in the area of the loading position 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Specific Conveyance Elements (AREA)

Claims (9)

  1. Dispositif de réception (2) pour une installation de sablage (1) avec une chambre de sablage (3), dans laquelle les objets à sabler peuvent être déposés sur le dispositif de réception (2) déplaçable ou rotatif et être traités à l'aide d'un agent de sablage, au moins le dispositif de réception (2) pouvant être déplacé ou tourné à l'aide d'un système d'entraînement (7), le dispositif de réception (2) présentant une table tournante (3a) qui est entraînée en continu ou pas à pas et qui présente de nombreuses parties de réception (25) agencées à distance les unes des autres pour l'objet à sabler, et les parties de réception (25) pouvant être entraînées par l'intermédiaire d'un autre système d'entraînement (10), les parties de réception (25) étant réalisées sous forme de plateaux tournants qui sont agencés à distance les uns des autres sur les dispositifs de réception (2) et qui sont entraînés individuellement ou ensemble, à l'aide de l'autre système d'entraînement (10), autour d'un axe vertical, pas à pas ou en continu,
    caractérisé en ce
    qu'avant, pendant ou après le retrait de l'objet sablé, les plateaux tournants (25) peuvent être ramenés dans leur position de réception initiale à l'aide d'un dispositif de commande et/ou d'un système de réglage (34) présentant un disque à came (18) ou un disque à roue de friction (18b), le plateau tournant (25) présentant une roue de friction (20) et un galet de butée (22) qui, pendant le processus de rotation de la partie de réception (25), s'applique contre un disque à came (18) ou un disque à roue de friction (18b) agencé sur le dispositif de réception (2) et se déplace le long de celui-ci, ce qui force le plateau tournant (25) à tourner et l'oriente de telle sorte que le plateau tournant (25) reprend sa position initiale pour la réception d'un nouvel objet à traiter.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    le système d'entraînement (7) est réalisé sous forme de transmission cadencée.
  3. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le galet de butée (22) se trouve, dans une position du plateau tournant (25), en face d'une pointe de came mobile (32) du disque à came (18) ou du disque à roue de friction (18b) et établit une liaison par adhérence entre le disque à roue de friction (18b), se déplace le long de celui-ci et empêche une rotation en arrière trop importante du plateau tournant (25), la roue de friction (20) présentant un aplatissement (20b) qui interrompt la liaison par adhérence entre la roue de friction (20) et le disque à roue de friction (18b) et assure que le plateau tournant (25) reste dans une zone angulaire.
  4. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    certains ou tous les plateaux tournants (25) sont équipés chacun d'un disque d'entraînement ou d'un disque à courroie (19) qui est en liaison d'entraînement avec un entraînement à courroie (11) ou similaire.
  5. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    certains ou tous les plateaux tournants (25) sont équipés chacun d'un disque d'entraînement ou d'un disque à courroie (19) et la pièce à traiter peut être enfichée sur le plateau tournant (25) et le dispositif de réception (2) peut être déplacé avec le plateau tournant (25) dans le sens des aiguilles d'une montre de manière cadencée à travers l'espace de sablage (3), à l'aide de l'autre dispositif d'entraînement (10) et d'une courroie d'entraînement (12) correspondante, qui est maintenue en tension par un tendeur de courroie (14), le plateau tournant (25) étant en outre tourné autour de son propre axe et le dispositif de réception (2) étant agencé de telle sorte que la partie de réception ou le plateau tournant (25) peut être détaché de la liaison de l'entraînement de la courroie d'entraînement (12) à l'aide d'un renvoi de courroie (11) et, dans cette configuration, les plateaux tournants (25) peuvent tourner librement.
  6. Dispositif selon l'une quelconque des revendications précédentes.
    caractérisé en ce que
    le plateau tournant (25) forme avec un disque à courroie (19) et la roue de friction (20) avec un aplatissement (20b) et le galet de butée (22) une unité de construction qui est montée de manière rotative sur le dispositif de réception ou la table tournante (3a) et, lors de la rotation, le dispositif de réception (2) peut prendre une telle position par rapport au disque à came (18) ou au disque à roue de friction (18b) que le plateau tournant (25) et le galet de butée (22) viennent s'appuyer contre la came de butée (15) et, en cas de poursuite de la rotation du dispositif de réception (2), un déplacement du plateau tournant (25) dans la position de réception initiale pour recevoir un nouvel objet à traiter peut être effectué.
  7. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    un système de réglage (34) est prévu dans la zone de la limite extérieure ou de la périphérie de la came de butée (15) ou du disque à roue de friction (18b) qui, à l'aide d'un disque de réglage (30) réglable au préalable et d'un bras de levier (28), provoque une orientation exacte de la partie de réception (25) dans sa position de réception initiale pour la réception d'un nouvel objet à traiter.
  8. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    dans une position déterminée du plateau tournant (25), le système de réglage (34) est pressé pneumatiquement, hydrauliquement, électriquement et/ou automatiquement contre le plateau tournant (25) et amène ainsi le plateau tournant (25) exactement dans sa position d'origine pour la réception d'un nouvel objet à traiter.
  9. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le système de réglage (34) est réalisé sous forme de bras de levier, qui est reçu de manière pivotante dans un système de fixation (30b) et est raccordé à un vérin de réglage (27) qui peut amener le bras de levier en liaison active avec le plateau tournant (25) et déplacer le plateau tournant (25) dans la position initiale pour la réception d'un nouvel objet à traiter.
EP19177344.9A 2019-05-29 2019-05-29 Dispositif de maintien pour un appareil de sablage Active EP3744478B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19177344.9A EP3744478B1 (fr) 2019-05-29 2019-05-29 Dispositif de maintien pour un appareil de sablage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19177344.9A EP3744478B1 (fr) 2019-05-29 2019-05-29 Dispositif de maintien pour un appareil de sablage

Publications (2)

Publication Number Publication Date
EP3744478A1 EP3744478A1 (fr) 2020-12-02
EP3744478B1 true EP3744478B1 (fr) 2023-03-29

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Application Number Title Priority Date Filing Date
EP19177344.9A Active EP3744478B1 (fr) 2019-05-29 2019-05-29 Dispositif de maintien pour un appareil de sablage

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2315546A (en) * 1936-08-31 1943-04-06 Pangborn Corp Abrading apparatus
US9248546B1 (en) * 2014-09-26 2016-02-02 Engineered Abrasives, Inc. Idler assembly for part processing
WO2017146173A1 (fr) * 2016-02-23 2017-08-31 日本発條株式会社 Dispositif de grenaillage

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Publication number Publication date
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