FR2696949A1 - Mixing vessel with interchangeable lids with integrated tools - mixes, blends, kneads, beats, cuts and disperses pastry, cream, liq., and powders by orbital and rotational tools - Google Patents

Abstract

Appts. for mixing, blending, kneading, beating cutting and dispersing elastic and non elastic pastry, creams, liq., or powder has a non rotating vessel (17), open at the top, capable of accepting a series of different interchangeable heads. Each head has a lid, two attachment elements, controls, regulators, detectors and motor drive for the tools extending into the vessel. The vessels are transparent vitreous enamel or stainless steel flat based cooking pots designed for use on a cooking plate. Pref. lid attachment elements (4) lock on vessel handles (22) and are shaped, complementary to external rim of vessel (17), to facilitate centring of lid and tools. Lid (4) seals via compression joint (30). Lower ends (21) of tools (19,n/s), positioned close to base of vessel to make light contact, are in form of a scraper covered with an auto-lubricating material, e.g. PTFE. USE/ADVANTAGE - Appts. is used in food, pharmaceutical and cosmetic industries. It is compact with all components in lid. Multi-function, variable speed operation suitable for small vol. Orbital motion of cutter reduces heating effect.

Description

DEVICE FOR MIXING A BATTERY MIXER CUTTER ON A POT WITH
SCRAPING SYSTEM.

The subject of the invention is vertical kneading, threshing, mixing and cutting devices; interchangeable tools with scraper effect which can be used alternately in a vertical nan rotating tank, notably a braising pan or pot, which can be easily heated on a baking sheet.

The technical sector of the invention is that of the construction of a mixer.

beater mixer cutter reactor of elastic pasty products, pasty, creams, powders and liquids; and relates to the agro-food, cosmetology, pharmacy, petrochemicals fields including in particular laboratoines, handicrafts and individuals.

Devices are known such as mixer mixers comprising a non-rotating tank, of circular shape with curved or spherical bottom which is open upwards.

Known tanks have interchangeable vertical tools, generally with planetary movement. The tool is connected to a vertical axis with planetary movement, the reducer being integral with the upper part of a frame.

The whole head and frame grouping together the various mechanisms: motor, reducer, pulleys ... The size compared to the tank is generally large on the side and especially in height. Weight is also necessary for stability during intense work. Known tanks generally have a grid or cover which closes the upper opening during mixing in order to avoid the risk of accidents, in particular the risks of tearing off or severing of the fingers by the rotating tools.

Mixer devices of this type are described for example in patent application No. 591,496 DE JUNE 30,1975 (United States Patent
Smader 3,995,840 Dec 7,1976).

An objective of the present invention is to use commercial or quality braising pans or pots, with a flat bottom designed for cooking plates. These tanks can for example be made of transparent ceramic glass or stainless steel.

The cover assembly grouping together all the motorization allows the concept, the total removal of the frame, the tank acting as a frame.

In addition to saving weight, space and price, this design opens the possibility of having several sets of interchangeable cover heads for a single pot. For example, a mixer-beater mixer cover assembly with the appropriate interchangeable tools, rotating at a maximum speed of approximately 440 revolutions per minute and a distributor-cutter cover assembly having a maximum speed close to 3000 revolutions per minute. In this configuration case, a single control box could alternatively be connected to the socket of the different cover heads.

An objective of the present invention in addition to providing several functions alternately in a small-volume commercial pot of the order of 3.5 to 35 liters, is to benefit from a system of fasteners with guidance of the head assembly / cover with the tank, new and economical using the existing, in particular the handles and the rotary forces opposite to the rotation of the planet and tools in the products contained in the non-rotating container.

Another objective of the present invention, the bottom of circular cellars acting indirectly as a cooker is to design scraper tools by their shape obtained by foundry and treated P.T.F.E.

so that they can be lightly pressed on the bottom of the tank to prevent the cooking substances from burning up the substances being treated at the bottom of the container.

We know from experience, especially in the pastry and hospitality sectors that many heated preparations are prepared first in a pan with manual scraping, while now with the present invention in an extremely economical way, everything can be done in the 'apparatus.

In addition, the planetary output reducer system gives the idea of being able to use together, several tools and will offer the advantage of being able, for example, to use the whisk plus the mixing arm with scraper effect, on a baking sheet at slow and medium speed, then ensult in quick speed on a special soft, anti-vibration mat
In cosmetology / pharmacy, we know that heated products change state during development and the use of several different tools in the same device will bring advantages, comfort and a certain time saving.

The devices according to the invention offer great security against the risk of injury due to accidental contact of the hands with the tools, thanks to the head assembly covering the tank and to the safety preventing operation as long as the head assembly with the tank does not are not body.

The lighting inside the tank is an additional safety element.

The non-rotating cover assembly device covering the non-rotating tank allows the installation of an excellent seal for the vacuum or controlled atmosphere.

Another objective of the present invention is to ensure without noise and at lower cost the excellent stability of the compact and light device in rapid operation, by a mat to be placed under the tank made of flexible material, of good temperature resistance and above all anti-slip as well as the possibility of cooling the tank and the products by a double envelope of waterproof synthetic material containing for example a refrigerant ready to be used after having previously stayed in the freezer
Another objective is to be able to place sensors in the products during work and in particular a thermometric probe which can if necessary be regulated.

Another objective is to be able to place a head with a planetary movement tool of the cutter type rotating between 1000 and 3500 revolutions per minute.

The advantage of the planetary cutter is the use of a tool that takes only part of the mass at a time and therefore avoids, on the one hand, overheating harmful to the products, known vertical cutter tools generally operating in the overall mass of the products and on the other hand to reduce the useful power of the engine, the tool only working in about a third of the mass of substances at a time (weight gain, cost size and energy saving .

Finally, an economic objective is to be able to use in the low range a head assembly with non-planetary tool movement, thanks to a reducer with two concentric vertical axes of different speeds, with an axis having a speed suitable for kneading kneading and a speed suitable for threshing and mixing (parallel gear reducer). In this regard, a very detailed study of the shape of a kneading kneading tool has been developed (see Figure 4).

According to a preferred embodiment, the motorized group is composed of a variable speed direct current motor or of an electric motor with one or two fixed speeds; the use of a hydraulic or pneumatic motor could also be envisaged.

The motor is connected to a reducer, for example a wheel and worm itself at its output, driving a rotating planetary 2 reducer made up, for example, of a large pinion made of lightly lubricated self-lubricating material and two small gears of treated steel causing higher speed their tool shaft; all rotating in an internally toothed non-rotating crown, which can also be made of self-lubricating material. The various axes rotating at low or medium speed will preferably be mounted on self-lubricating rings acting as a bearing or for shafts rotating at very high speeds such as cutter tools, on bearings.

It should be noted that the planetary could very well be driven by chain or toothed belt instead of gears.

Preferably, the assembly in particular of the motorization is integrated in a light foundry either in synthetic material according to the capacity and the field of application is in light alloy ...

Thanks to the compactness of the assembly, it follows that the multi-function mixer according to the invention can easily be integrated on a kitchen worktop or a laboratory bench with great safety in use and quality. exceptional results. The tools and the tank can very easily be washed in a dishwasher (hygiene).

For the planetary mixer mixer head / cover assembly, the recommended speed of the tools is around 350 revolutions per minute for 62 revolutions per minute of the sun gear for liquids and creams and 170 revolutions for 30 turns of the sun gear for pasta.

For the planetary disperser head cutter cover assembly, the recommended tool speeds are in the range of 1500 to 3000 revolutions per minute for the tools and 250 to 530 for the planetary.

For the mixer head and beater mixer assembly with concentric axes, the recommended tool speeds are 48 to 62 rpm for the kneading kneading arm and 350 to 530 rpm for the other threshing and mixing tools.

The following description refers to the appended drawings which represent, without any limiting character, an exemplary embodiment of a mixaur device according to the invention.

Figure 1 is a vertical section of the malexaur planetary mixer mixer.

Figure 2 is a partial vertical section of the planetary disperser cutter assembly.

Figure 3 is a partial vertical section of the sub-assembly of the head blocking system with the tank.

Figure 4 is a plan view of the head / tank blocking system.

Figure 5 is a partial vertical section of the mixer mixer mixer axes of concentric tools with a studied tiès form of kneading kneading tool.

Figure 6 is a partial vertical section shown with the concentric liquid mixing tool, called a whisk.

Figure 7 is a top view showing the operating era of the concentric mixing tool.

Figure 8 is a partial vertical section shown with the concentric threshing tool, called a pallet and used for the manufacture of non-elastic light creams and pastes.

FIGS. 1 and 2 represent a device which can be used with the movement of planetary tools as a mixer, mixer, kneader, kneader or cutter, disperser of elastic pasty, non-elastic pasty, creamy, pulverulent or granular liquids.

These devices include a head assembly 1, which is for example a hollow casing molded from light alloy. The casing 1 essentially comprises a frame 5, a sole 2 and a support bell 3 of the reducers 6 and 10-11-12, two fasteners 4 which connect the handles 22 of the pot 17.

Inside the head 1, a motor 7 connected to a first reduction gear 6, itself fixed on the bell 3 of the casing 1 and connecting by a hollow shaft 8 linked to a large pinion 10 driving two small pinions 11 around a internally toothed ring 12, itself fixed in the bell 3. The shaft 8 being mounted for example on self-lubricating rings 9 and 36. The tool exes 15 of FIG. 1, driven by the gears 10 and 11 rotate on self-lubricating rings 13. Inside the head 1, a light 14 and a transparent material 16 integrated and sealed in the sole 2.

The removable tools 18 and 19 are driven by the axes 15 and 8.

The end 21 of the tool 19 treated P.T.F.E. in the form of a scraper resting on the bottom of the tank 24.

The set can be placed on a carpet 25 or 27 with 28 figures 1 and 2.

Figure 2, the cutter cutting tools made of blades 29, some of which can be inclined so as to promote the suction of the products in the cutting tools. The shaft 39 rotating at high speeds is fitted with bearing 40.

An excellent vacuum tightness if necessary is ensured for example by specific seals which may or may not be made of composite material. Head gasket 30 planetary gasket 34, tool shafts 32 and central shaft 33.

A non-rotating wire protection tube 31 is fixed in the fixed part 35, itself connected to the lower part of the bell 3. A stainless steel tube 37 containing a thermometric sensor 38 is fixed on the part 35. The sensor 38 is directly in contact at its extremity with the substances to be treated. A suitable adhesive seal is made at the bottom outlet of the tube 37.

Figures 3 and 4 show an original system is economical fasteners.

Indeed, the braising pans or commercial pots are supplied with two handles 22. The two fasteners 4 allow effective blocking while being able to serve as centering for the correct positioning of the head with the tank.

The direction of rotation of the sun gear and the force of the tools in the product cause a reverse rotation force ensuring excellent holding lock.

FIG. 5 represents the head assembly with a concentric reducer with parallel trains with two output axes, an axis rotating at approximately 48 revolutions per minute and an axis at approximately 530 revolutions per minute. In this configuration, a reduction gear is saved but the performance is also limited. However, an extremely rigorous study of the shape of the kneading kneading tool 44 from a concentric axis has produced an astonishing result, due to the study of relative movements, the observation of the behavior of elastic and pasty products. shapes.

The electrical parts can for example be sealed in a case 41.

FIG. 6 represents the mixing tool 46, driven at high speed by the 2nd axis of the reducer. This tool does not rotate in the entire surface of the tank, therefore products give excellent results for liquids.

FIG. 7 represents the operating era of the cutting tool 46.

FIG. 8 represents a centering system 47 of the threshing tool 48, intended for the manufacture of non-elastic creams and soft pastes. The centering device is composed for example of a shaft 49 on which is fixed a first pulley 50 connected by a toothed belt 51 to another miniature pulley 52 linked to a shaft 53 driving the threshing tool 48. The centering assembly 47 being guided and centered by the slow shaft 43.

Claims (16)

R E V E N D I C A T I O N S  1. Device for mixing, kneading, threshing and mixing or dispersing cutter for elastic pasty, pasty non-elastic, creamy liquid or powdery products, of the type composting a non-rotating tank 17, which has an open upper end, equipped and capable of to receive alternately several types of heads, each head comprising a cover, two fasteners, the controls, the regulation and the sensors as well as the whole of the motorization with the tools plunging into the tank, characterized in that the tanks are formed by braziers or pots 17, in transparent ceramic ceramic materials or stainless steel, designed to be heated on a hob, stove, the bottom being flat.  2. Device according to claim 1, characterized in that the tools 19, 44, 48 have a scraper-shaped section at their ends 21. The tools having to be adjusted very close to the bottom of the tank and being able to be slightly supported if they are covered with a self-lubricating material, for example PTFE  3. Device according to claim 1, characterized in that it comprises a specific mat 25, made of flexible material, of good resistance to temperature, but above all very adherent and anti-vibration placed under the tank, ensuring excellent stability of the compact device, during intense work phases.  4. Device according to claim 1, characterized in that the heads in the lower parts under the covers have, two fasteners 4 locking on the handles 22 of the tank 17.  5. Device according to any one of claims 1 to 4, characterized in that said fasteners 4, have a particular shape matching the external profile of the upper part of the tank and allowing the centering of the head / cover and tool assemblies with the tank 17.  6. Device according to any one of claims là5, characterized in that it comprises a cutter tool immersed in the tank working only in part of the mass at a time and this due to its planetary movement.  7. Device according to any one of claims 1 to 6, characterized in that the planetary reducer is equipped with several shafts and tools 18, 19, which can operate simultaneously.  8. Device according to any one of claims 1 to 7, characterized in that it comprises a double envelope 18, made of waterproof material and placed under the tank 17, containing a specific refrigerant, which previously placed in a freezer used to cool the tank and the products.  9. Device according to any one of claims 1 to 8, characterized in that it comprises a reduction gear with several parallel trains 42, allowing, by the use of the axes of these trains, to have at least two shafts of rotating outputs at different speeds, in order to be able to use alternately, several tools having to rotate at different speeds and at different torques depending on the nature of the products to be treated.  10. Device according to any one of claims 1 to 9, characterized in that it comprises a tool centralizer (fig. 8) driven by the off-center shaft of the reducer. The centralizer drives the output shaft 48 at its center centered at high speed.  11. Device according to any one of claims 1 to 10, characterized in that the head / cover and non-rotating tank assembly includes seals 30, 32, 34 and head attachments 4 locked on the handles 22 of the tank by exerting a compression of the seal 30 embedded in the lower part of the cover.  12. Device according to any one of claims 1 to 8 and 11, characterized in that it includes sensors placed in a tube centrally with respect to the tank, the tools rotating on themselves and planetaryly around sensors integrated in the non-rotating central part 37.  13. Device according to any one of claims 1 to 12, characterized in that in the covers or in the central tubes 37 of transparent material, is integrated lighting.  14. Device according to any one of claims 1 to 13, characterized in that the cover 2 is made of specific transparent material and resistant to temperature and pressure.  15. Device according to any one of claims 1 to 14, characterized in that a sealed window which can also act as a hatch is integrated on the cover.  16. Device according to any one of claims 1 to 6, characterized in that it comprises a kneading tool 44 of particular shape as shown in fig. 5.