DE7006155U - FEEDING DEVICE FOR RAW MATERIALS TO BE ADDED INTO A MIXER OR MIXER. - Google Patents

Description

52o2 Hennef / Sieg, February 18, 197o

My sign; ^{GM 70} ° ¹⁵ class / ha.

Applicant; B. Günter Meyer
52o2 Hennef / Ge
Hanftalstrasse 14th

Utility model registration

Feeding device for raw materials to be introduced into the mixer or kneader

The invention relates to a feeding device for raw materials to be introduced into mixers or kneaders, Their components are transferred to the mixer or kneader free of residues via weighing devices in terms of weight or quantity can be entered.

With automatically controlled mixers or kneaders, collecting funnels, pouring chutes and feed pipes are used, which are cleaned by means of vibrators, knockers or the like. When running these facilities in Metal is aimed at that the shaking and knocking motion generating tools such as vibrators, cam drives etc. are tuned in frequency so that these containers as close as possible to the natural frequency get excited.

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52o2 Hennef / Geisbach

There are also known devices for the residue-free introduction of metering material into mixing devices, wherein the feed chute is cleaned by means of a scraper piston.

Furthermore, Saramel funnels are used to collect the Components released by scales are known, with the product that remains hanging on the surface of the funnel being scraped off in a rotational movement by means of scrapers in the form of brushes or tightly tensioned wires and the like.

All of the aforementioned, known devices have the essential disadvantage that they are compact the construction only through additional cleaning doors or Openings become accessible to the inside when changing products. Another disadvantage is that e.g. adhesive substances are smeared onto the inner surface by cleaning with scrapers and thus conceal. The same disadvantage exists with pouring pouring pipes, such as those used for cleaning with a piston or ring scraper. Another problem with the known ones Devices consists in the fact that the multi-component weighing device, which is often compactly arranged, consists of The reason for the necessary ensiling of the mix is dimensioned over a large area and therefore in higher areas Floors must be accommodated.

The operating and auxiliary materials for an internal mixer, e.g. used for mixing and kneading, for a rubber or Plastic processing plant, but require the use an assembly crane that sweeps the work space above the mixer, so assembly and disassembly work are feasible.

All existing facilities of the previously recognized * Construction have the major disadvantage that they can only be dismantled with great effort.

It should also be mentioned that in the event of a recipe changeover of the batch to be prepared, a general complete cleaning process are necessary because when changing from masterbatch (basic mix) to final mix (ready mixes) Chemicals and ingredients in question, their mixing overlap or intersection too unusable Lead to faulty batches, because z * B. the vulcanizing agents must never get into the basic mixture, since otherwise the vulcanization process would already be initiated in the mixer at the increased mixing temperature.

There is a similar problem in plastics technology when using the aforementioned facilities for pigmentation. It is inconceivable what damage can be caused by residual trace elements of color-intensive pigments, for example if the system is not completely cleaned.

The object of the invention is to provide a feed device for to be introduced into mixers or kneaders To create raw materials which are easy to clean and which allow easy access to the upstream weighing devices.

To solve this problem it is proposed that one or several weighing containers of single or multi-component scales are enclosed by means of a conical collecting funnel, the extension of which is the intermediate link from the weighing and collecting system to the mixer inlet and which consists of a flexible material and which can be cleaned of the product residues adhering to its inner walls by means of vibration exciters acting in any direction.

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In a further embodiment of the invention it is proposed that the vibration exciters attached to the upper 5 ^ r, ci of the feeding device for a vertically directed vibration can be used at the same time as lowering members for the feeding device. This advantageously ensures that easy accessibility is guaranteed for the purpose of cleaning and maintaining the weighing device and cleaning the feed device.

The holding and carrying system of the Saramel and feed components According to a further concept of the invention, (funnel and hose) is made from retensionable steel cables or chains And the like. Formed so that the highly flexible material can be selected with a sufficiently thin wall thickness.

The invention further provides that electric motor at any number of points at the periphery in different horizontal planes, magnetically or pneumatically driven \ vibrators, beater, or the like. Are mounted. J

The invention also provides that the lower or any higher part of the feeding device Can be locked or squeezed off, so that on the one hand the mixer vapors, condensates or the like. On the other hand the overpressure or underpressure of the mixer of the feed device and thus also of the sensitive weighing devices be kept away.

Another advantage to be mentioned is that the lower end of the flexible one can be used to derive control and defective batches The feed system is switched off by the mixer inlet opening can be, so that by switching off additional control flaps or the like. A discharge of the mixtures bypassing the mixer can be done. All of the collection, registration and transfer to the Components serving kneaders are due to the high flexibility and lightness in terms of weight

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easy to use and can therefore be lowered to the bottom for major repairs to the mixer or kneader will*

The invention also provides for an automatic retensioning of the lower zone of the feed system. Serves for this according to the invention a cantilever rocker, which also compensates for the expansion and compression components of the squeezing process. This rocker preferably carries an additional one Shake-off system, so that in addition to the deformation caused by the squeezing process, there is also a vertical one directed vibration component is transferable to the case system.

According to a further idea of the invention, the dust protection compensator when lowering the collecting and Entry system for service or total manual cleaning is automatically lowered and therefore with Restarting the system no longer manually applied.

Based on the figure shown in the drawing, the figure is based on a possible embodiment in Described in more detail below, the left side of the drawing shown the invention in the operating position, the right side, on the other hand, is in the cleaning position.

The funnel-shaped feed device 1 can be acted upon pneumatically or hydraulically Working cylinders 2.3 suspended, which at the same time a Schwingungs.funktion and the lowering function for take over the feeding device 1. The amplitude is that generated by the working cylinders 2, 3 Vibration can be controlled via preferably contactless limit switches. The lower end position is when lowering through the greatest travel of the working rod or piston rod 5

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set. In addition to the working cylinders 2, 3 serving as vibration exciters, there are also on the outside the feed device according to the invention further Vibration exciters 6, 7, 8 and 9 are provided whose vibration

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direction of travel can be ae. For stable design of the feeding device 1 are several chain, rope or rod elements distributed around the circumference Io is used, which can be adjusted via tendons 11. The feeding device according to the invention has in different horizontal planes lying stiffening elements 12, which can be formed collar-shaped and which can be connected to one another by elements of the same design. - At the connection points 13 of the rope elements Io with the stiffening elements 12 are preferably the vibration elements 6, 7 and 8 appropriate.

Between the mounting plate 14, on which, among other things, the weighing devices 15 are attached and the actual feed device 1 is a bellows-like compensator 16 is provided, which has a dust-tight seal with the aid of a seal 17 opposite the mounting plate 14 ensures.

The compensator 16 is attached between an upper 18 and a lower 19 metal ring and in the Piston rods 5 of the working cylinder 2,3 guided and supported elastically against one another via the springs 2o.

The lower part -21 of the feeding device 1 is tubular and provided with a squeezing device 22. The squeezing device consists from the individual scissor arms 23 and 24, which are mounted in points 25 and 26. The squeezing or opening of the individual arms 23 and 24

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takes place via an actuator 27. U » the at · Pinch-. Process occurring change in length of the hose

shaped end piece to compensate, the existing of the levers 22 and 24 shear e..tsy star in the point

on a lever 29, which in turn is held in a fixed bearing point 3o and via the

j counterweight 31 infoige the handlebar movement of the lever?

29 is kept in balance. A vibration exciter 9 can preferably also be attached to the weight, so that in the open position the

Scissor arms 23, 24 also have an oscillating force acting on the lower end of the feeding device 1.

The part 32 of the feeder _t l which is connected to a flange 33, may be moved away from the inlet opening 35 via the power cylinder 34: v ^ gestures. So that when the flange 33 is returned, there is a secure fit against the opening 35, guide elements 37 are provided which act as mandrels, wedges or the like. can be formed.

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Claims (1)

ΊΟ Protection claims 1.) Feeding device for in mixer or kneader
Raw materials to be imported, the components of which are quantitatively entered into them via weighing devices, characterized in that one or more weighing containers are enclosed by single or multi-component wafers by means of a conical collecting funnel, the extension of which is the intermediate link from the weighing and Saramel system to the mixer inlet
forms and which consists of a highly flexible material and which acts in any direction by means of the vibration exciter from its
Product residues adhering to the interior walls can be cleaned. 2.) Feeding device according to claim 1, characterized in that the top
Edge of the collecting funnel attached vibration exciter for a vertically directed oscillation can be used at the same time as lowering members for the feed device. 3.) Feeding device according to claims 1 and 2, characterized in that several additional vibrators, knockers or shaking units on their circumference in different horizontal planes are provided. 4.) Feeding device according to claims 1 to 3, characterized in that
that horizontal or vertical reinforcement elements (strips, rings) are provided, which can be reinforced with tethers, flexible rods, chains or bands or the like. Γ 5.) Feeding device according to claims 1 to 4, ·: Characterized in that preferably at the points of the horizontal and: the approximated vertical reinforcement brackets or fastening elements for the additional j knockers, vibrators are suspended . ; 6.) Feeding device according to claims 1 to 5, \ characterized by that at its lower, closer to the mixer inlet ' th end a squeezing device is provided, ^; their actuation by compressed air after the system ■ "Pinch valve", electrical, electro-pneumatic 'or done hydraulically. \ 7.) Feeding device according to claim:; ii 6, characterized., Characterized, caß the expansion- <component of the lower inlet hose through a I Spring-loaded or weight-loaded rocker or direct ■■ ' effective compression springs or air suspension or the like. \ is compensable. ] ' 8.) Feeding device according to claims 1 to 7, , characterized in that '■■■: ■ their lower end by means of a pneumatic, }: electromotive, hydraulic or electromagnetic '■■; table actuator lifted from the mixer inlet i is bar. ; 9.) Feeding device according to claim 8, characterized I- marked that maintenance of the Swivel range of the downpipe a collecting funnel or collecting box for receiving the control or Defective batches are provided. - Io - 70 O 615 Io lo.) Feeding device according to claims 1 and 2, characterized in that the dust sealing ring is in the closed position by means of springs or other pressure-resilient components and raising the collecting funnel under the mounting plate of the scale system. 11.) Device according to claim Io, characterized shown that the spring travel of the dust sealing ring by means of adjusting rings, Limiting eyelets or Seiistraffern can be limited and thus corresponding scope for maintenance and cleaning of the interior releases.