CN110402291A - The improved roller of processing of milling for leather - Google Patents

The improved roller of processing of milling for leather Download PDF

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Publication number
CN110402291A
CN110402291A CN201780087938.3A CN201780087938A CN110402291A CN 110402291 A CN110402291 A CN 110402291A CN 201780087938 A CN201780087938 A CN 201780087938A CN 110402291 A CN110402291 A CN 110402291A
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CN
China
Prior art keywords
hollow body
leather
roller
shell
processing
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Granted
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CN201780087938.3A
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CN110402291B (en
Inventor
安东尼奥·加廖托
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Erretre SpA
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Erretre SpA
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    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14BMECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00Manufacture of leather; Machines or devices therefor
    • C14B1/40Softening or making skins or leather supple, e.g. by staking, boarding, or crippling machines, by dry mills
    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14BMECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B3/00Milling leather

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

A kind of improved roller of the processing of milling for leather, which includes: scaffold (2), and the scaffold is shelved on the reference surface of industrial premises;Removable hollow body (3), the removable hollow body couple with scaffold (2) and are made of at least partly thermally conductive material, receive in volume (4) to the leather by processing of milling inside it;Motorized device, the motorized device is operably connected in this way with removable hollow body (3), and which makes that hollow body is placed about linear axis (X) rotation when leather must be processed in the internal capacity (4) of hollow body (3);Shell (5), the shell (5) couples with scaffold (2) and around removable hollow body (3), and shell (5) and removable hollow body (3) limit annular space (6) together.Particularly, which includes regulating loop (7), and the regulating loop (7) passes through air (A1) cooperate with removable hollow body (3), regulating loop (7) transmits air (A in given temperature in annular space (6)1), regulating loop (7) is changed according to the possibility demand of the processing of the leather in the hollow body (3) in rotation by regulating device, so that the outer wall (3a) of hollow body (3) is maintained at predetermined temperature, the predetermined temperature is considered being enough for each stage of the processing of leather in hollow body (3), and heat exchanger is defined by the construction package (8) that shell (5) and removable hollow body (3) are formed, in the heat exchanger, it is sent to the air (A that the outer wall (3a) in annular space (6) and around hollow body (3) flows1) the first heat-exchange fluid in heat-exchange fluid is represented, and be at least hot, the leather in internal capacity (4) to help to heat hollow body (3) in the initial stage of leather processing;And leather processing late stage in be it is cold, so as to dissipate by by leather move in the internal capacity (4) of hollow body (3) friction generation excessive heat.

Description

The improved roller of processing of milling for leather
Description
Present invention relates in general to leather processing machines, for example, in leather industry the processing of milling of leather it is improved Roller.
From the beginning it is clear that in leather industry, term " milling " means a kind of mechanical processing, wherein by leather It is immersed into roller, when roller is rotated by motorized device, mobile usually dry leather, so that leather is softer and eliminates Any existing fold (fold), and leather preparation is therefore used for subsequent working-up stages.
In fact, material rolls experience mechanism, the main body structure due to it in cylindrical (usually punching press) main body At machine (or roller) major part and by around approximate horizontal transverse axis (transverse axis) rotation come Work.
Simultaneously with mechanism, by means of undergoing the air of scheduled temperature and humidity condition to be present in cylinder to adjust The material of shape drums inside is possible.
Finally, product is cooled down by means of the circulation of cold air.By changing process time, there is more or less strong Strong effect is possible.
Therefore, substantially, what leather was undergone in the cylinder-shaped body of tannery's roller mill, and circulation " is matched according to determining Side (recipe) " carries out, should " formula " consist essentially of in advance established temperature condition and damp condition, by with cylinder-shaped body The type of the leather handled in cylinder-shaped body rotation speed that the motorized device appropriate that is operably connected assigns, roller With the duration for circulation of measuring and mill.
This " formula " allows to obtain in a manner of general and assume desired by the drying leather processed in circulation of milling With expected softness levels.
In leather industry, roller is a kind of process equipment, and soften leather using centrifugal force by rotation: leather is revolving Turn softening in hollow body (roller), in the rotary hollow main body (roller), leather is by means of being evenly distributed on hollow body Rectangle or trapezoidal flow deflector (deflector) (or blade) on the inner wall of itself are received.
In general, tannery's grinding drum includes two kinds of structure, and wherein the first structure provides, includes leather Rotary hollow main body be circular, and second structure regulation, aforementioned rotary hollow main body is octagonal.
Using the roller of the both types of several years simply by by rotation in leather tanning industry The centrifugal force that empty main body generates softens leather: it therefore follows that the quality and surface yield of the efficiency of softening and usual leather (surface yield) is at a fairly low or at least can widely be improved.
In addition, during processing of milling, i.e., when hollow body is around linear, approximate horizontal axis rotation, to rolling During the constant impingement of the leather for including in the rotary hollow main body of cylinder (especially if it is cylindrical) at any time reduces Thus the structural intergrity of empty main body brings apparent economical disadvantages.
Tannery's roller with the particular configuration concept described in patent publications CN203247270 (U) has tried Figure improves these disadvantages to a certain extent, in brief, provides in the removable hollow body of roller and interleaving for shell Enter heating mechanism, when leather must be processed in the internal capacity of hollow body, which passes through motorized device Rotate and place around linear axis, the shell by limit annular space it is such in a manner of around removable hollow body, should plus Heat engine structure is accurately accommodated in the annular space, which passes through irradiation in the structure of rotary hollow main body, and And irradiate operated on leather to be milled in turn, this facilitates empty by means of the heat blowed in hollow body itself The processing of gas or the leather of cold air actuating.
However, the development described in existing patent document CN203247270 (U) for the roller of leather milled herein (evolution) some undeniable and generally acknowledged disadvantages are also showed, wherein first disadvantage is without doubt by following thing Indicate in fact: the heating mechanism in annular space between insertion shell and inner hollow main body (roller) is according to define can only be only Only by heating the latter and heating the leather being included in turn therefore come work.
It therefore follows that this constructivity solution does not allow to be dissipated in the intracorporal place that mills of rotary hollow master anyway Notoriously formed during reason it is excessive heat-this is because leather phase mutual friction and leather the latter rotate during Inner wall against hollow body and the impact-against deflecting blade (deflecting blade) and during mill processes Processing temperature relative to setting is inconvenient and undesirable.
On the contrary, the heating mechanism being mounted in roller mentioned in existing literature CN203247270 (U) with dissipation skin It removes from office and is negatively instructed from the opposite direction of the demand of the heat generated on rotational circle cylindricality hollow body when milling in experience, it should Demand is usually stringent, and related to the final quality of leather.
Second disadvantage of the roller described in existing technical literature CN203247270 (U) and its construction and assembling Complexity increased due to the fact that it is related, it is contemplated that by roller provide heating mechanism specific type and specific position It sets, it is described the fact is that heating mechanism must be designed to remember it and the hollow body rotated during operation is integrated.
Such as by existing technical literature CN203247270 (U) it is described constitute closest to the prior art of the invention most Afterwards but simultaneously not the least important the shortcomings that with following demand in relation to: using suitable and heavy constructivity safety measure for managing electricity Can, the energy source is in the interior compartment-annular space of wherein thermogenetic roller formed by shell and inner hollow main body The installation of middle heating mechanism.
Therefore, from the understanding of the disadvantages mentioned above to current techniques state, the present invention seeks to improve it.
Particularly, the main object of the present invention is to provide the improved roller of the processing of milling for leather, this is improved Roller allows to be generally kept in the inner hollow main body for accommodating just processed leather during processing of entirely milling given Predetermined temperature.
In other words, the main object of the present invention be realize with there is a situation where opposite in the equivalent roller of known type The improved roller of processing of milling for leather, the improved roller allow to manage during circulation of milling by rotation The heat that mobile leather generates in empty main body, dissipate the heat.
Within this range, the task of the present invention is the improved rollers for generating the processing of milling for leather, relative to class As known drum, which allows to obtain in terms of pliability, uniformity and surface homogenieity when processing terminate The better finished product of quality.
Another task of the invention is the improved roller of mill processing of the adjustment for leather, the improved roller phase Production efficiency is increased for the equivalent prior art
Another object of the present invention is the improved roller of mill processing of the instruction for leather, which is in Reveal than closest to known and by comparison the structuring concept of the roller of more advanced technology and/or assembly program are simpler Structuring concept and/or assembly program.
Another object of the present invention is the improved roller of the processing of milling designed for leather, the improved roller Operation is easier to design also in terms of safety than the equivalent roller of known type.
Last but simultaneously not the least important purpose of the invention is to provide the improved roller of the processing of milling for leather, The improved roller even has emulative production cost in terms of the functionality of enhancing, this makes other mesh listed above Can be implemented.
Above-mentioned purpose by means of according to appended claims 1 be used for leather processing of milling improved roller come Realize, in order to it is exposed for purpose of brevity, appended claims 1 are as hereinafter referred to.
The other constructivity feature packet of the details of the improved roller of processing of milling according to the present invention for leather Containing in the corresponding subordinate claims.
The claims clearly and specifically defined below are the integral parts of this specification.
Advantageously, the improved roller permission of the processing of milling for leather of the invention will during processing of entirely milling Accommodate internal temperature and external temperature (and therefore there are also humidity) control of the rotating inner part hollow body of just processed leather It is less constant with holding.
This is dependent on the fact that roller of the invention particularly includes regulating loop, the regulating loop by air with Removable hollow body cooperation, the regulating loop itself transmit air in given temperature in annular space, the regulating loop root It is changed in this way by regulating device according to the possibility demand of the processing of leather in rotary hollow main body, which makes The outer wall for obtaining hollow body is maintained at predetermined temperature, which is considered each of the processing for leather in hollow body Stage is enough.
In addition, major advantage related to the present invention is dependent on the fact that, by shell and removable hollow body shape At construction package define a kind of heat exchanger, in the heat exchanger, be sent in annular space and around hollow master The aforementioned air of the outer wall flowing of body represents the first heat-exchange fluid in heat-exchange fluid, and at least:
In the initial stage of the processing of the leather in rotary hollow main body be it is hot, to help to heat hollow master Leather in the internal capacity of body;
In the late stage of the processing of leather be it is cold, to dissipate by being held by leather in the inside of hollow body The excessive heat that the friction moved in product generates.
Therefore, it can also be advantageous for the improved roller of the processing of milling for leather of the invention, it is specific by means of its With the appropriate adjusting of unique regulating loop, allowing to dissipate during circulation of milling is produced by leather mobile in rotary hollow main body Raw heat, this guarantees the best in quality of finished product when processing terminate, or at least certainly than being provided by the equivalent roller of known type Quality it is more preferable.
Therefore, in an advantageous manner, due to the temperature and humidity control that roller of the invention provides, of the invention is improved The production efficiency that roller is realized in the leather and the value of overall quality are greater than the production efficiency of comparable similar roller therewith and whole The value of body quality.
It is also advantageous that the improved roller of the processing of milling for leather as subject of the present invention shows ratio The simpler structuring concept of equivalent roller of known type causes to be easier to be assembled especially with respect to the latter, quite with it The institute of emulative production cost is advantageous, and the labor and raw material for its construction is identical.
The objects and advantages, and later will largely retouch the other objects and advantages of appearance from following It is obtained in stating, the preferred embodiment of the improved roller for describing to be related to the processing of milling for leather of the invention should Embodiment is provided by indicative and illustrative and not restrictive mode by means of attached drawing table, in which:
- Fig. 1 is the schematic of the improved roller of the invention in mode of operation and simplified plan view from above;
- Fig. 2 is the enlarged drawing of the construction component of Fig. 1;
- Fig. 3 is another enlarged drawing of the construction component of Fig. 1;
- Fig. 4 is the amplification details of Fig. 3.
Particularly and be used exclusively for leather processing of milling improved roller of the invention it is schematically and illustrative Ground is shown in FIG. 1, wherein improved roller is 1 by whole number.
As being observed that, this improved roller 1 includes:
Scaffold, usually number are 2 and only partially visible (do not contribute to the innovative technology based on the present invention Concept), which is adapted for blanking out on the reference surface (not shown) of industrial premises;
Removable hollow body 3, the removable hollow body 3 couple with scaffold 2 and by least partly thermally conductive Material (such as stainless steel) be made, removable hollow body 3 is suitable for being received in volume 4 inside it to by processing of milling Leather;
Motorized device do not indicate to expose convenient, the motorized device in this way with move it is hollow Main body 3 is operably connected (or association (key)), which make when leather must in the internal capacity 4 of hollow body 3 quilt Hollow body is placed about linear axis X rotation when processing;
Shell 5, the shell 5 couple with scaffold 2 and entirely around removable hollow bodies 3, and shell 5 can with this Mobile hollow body 3 limits annular space (or periphery compartment) 6 together, which, which shows, depends on changing Into roller 1 overall dimension width dimensions, typically not greater than 20 ÷ 25cm.
According to the present invention, improved roller 1 includes: regulating loop, is indicated on the whole with 7, which passes through air A1Cooperate with removable hollow body 3, which transmits air A in given temperature in annular space 61, the adjusting Circuit 7 passes through regulating device (not according to the possibility demand of the processing of leather in the hollow body 3 in rotation in this way Show) be changed, which makes the outer wall 3a of hollow body 3 be maintained at predetermined temperature, the predetermined temperature be considered for Each stage of the processing of leather is enough in hollow body 3;And construction package, it is indicated on the whole with 8, by shell 5 With the formation of removable hollow body 3, heat exchanger, in the heat exchanger, air A are limited1It is transmitted simultaneously in annular space 6 Outer wall 3a around removable inner hollow main body 3 flows, air A1The first heat-exchange fluid in heat-exchange fluid is represented, and And at least:
In rotation hollow body 3 in leather processing initial stage in be it is hot, to help to heat Leather in the internal capacity 4 of hollow body 3;
It is cold (or in colder temperature) in the late stage of the processing of leather, to dissipate by by leather The excessive heat that the friction moved in the internal capacity 4 of hollow body 3 generates.
Particularly, the second heat-exchange fluid in the heat-exchange fluid of the aforesaid heat exchangers limited by construction package 8 by Air A2Composition, air A2Independently of and be different from the air A that recycles in annular space 61And pass through auxiliary adjustment circuit It is introduced into the internal capacity 4 of hollow body 3, the auxiliary adjustment circuit and hollow body 3 cooperate, on the whole with 9 reports.
In this constructivity solution, such as also from Fig. 2 it will be apparent that by way of pure embodiment, air A1 With air A2It is to flow consistent (flow agreement) or cocurrent.
In addition, shell 5 by selected from by timber, plastic material (such as typically polypropylene), metal material and/or they Any in the material of the group of combination (traditional materials in leather sector for these applications) composition is made, and generally has There is support and forms the function of annular space (or periphery compartment) 6.
Moreover it is preferred that shell 5 includes inner insulated coating layer 10, which is fixed to the interior table of shell 5 Face 5a, and outer wall 3a of such mode towards internal hollow body 3 in order to be contained in annular space 6.In detail, Inner insulated coating layer 10 is arranged on the entire inner surface 5a of shell 5, both on cross side 5b, 5c and on side wall 5d.
Preferably but not necessarily, inner insulated coating layer 10 has the thickness of 4cm, and by selected from by polyurethane (PU), any in the foamed material of the group of polyethylene (PE) and/or analog composition is made, and passes through those skilled in the art Attachment device such as binder substance, screw, bolt and/or the analog of member's type known per se couple with shell 5.
It should be appreciated that will especially be fitted in the inner insulated coating layer if providing inner insulated coating layer in annular space Locality carries out the function for the metal structure diffusion for preventing heat by shell under such circumstances, then improved roller of the invention Shell will advantageously and hopefully (although not necessarily) be made of metal material.
Under constructivity angle, in this case, but it is purely acting as preferred and non-binding title, shell 5 is in Empty main body 3 integrally and synchronously moves, and rotates during the processing of leather around linear axis X: this is to improve place Manage the efficiency of itself, it is ensured that air A1The bigger reflux in annular space 6.
It should be appreciated that (not shown), shell can be with differences in other embodiments of improved roller of the invention Speed fixed or moveable component is asynchronously constituted relative to inner hollow main body.
In addition, removable inner hollow main body 3 and shell 5 are mutually coaxial, and preferably have by corresponding horizontal The cylindrical profile being laterally closed to thin slice (lateral flank) 3b, 3c and 5b, 5c.
Preferred embodiment described herein according to the present invention, regulating loop 7, which is advantageously arranged in, moves hollow master It outside body 3 and shell 5, and is at least partly supported, is caused unrelated with around the rotation of linear axis X by scaffold 2.
This constructivity arrangement allows improved roller 1 of the invention and immediate known technology dramatically different, this is Know that technology is for example made of document CN203247270 (U), wherein (pure) heating mechanism is received into inner hollow main body and shell Between in the clearance space that limits: in fact, compared with the existing technology, constructivity solution related to the present invention allows The bigger safety of mechanical part and workshop operator, because regulating device 7 is during operation from inner hollow main body 3 Discharge, and do not influenced by the high temperature generated in construction package 8 in (and shell 5) rotation, and however, the high temperature advantageously It is managed by the suitable adjustable of the operation of regulating device 7.
Therefore, in the present invention, regulating loop 7 is not only in the outside of internal hollow body 3 but also in the outside of shell 5 Installation, allow improved roller 1 avoid it is aforementioned it is immediate in the prior art it may be found that technical construction complexity and Plant engineering complexity (it will be understood that needing to manage the installation and operation for the transfer element being mounted in annular space, such as exists As occurring in CN203247270 (U), from the point of view of electronic angle, there is the limitation and risk of manipulation in this).
In addition, regulating loop 7 is also presented in the preferred embodiment described herein of improved roller 1 of the invention The advantages of can not ignore below, relative to the current state of the art equivalent with the embodiment more easily undergo inspection, maintenance, It repairs and/or replaces, therefore both there is other advantage with economic aspect in terms of operator's intervention.
In more detail, Fig. 1 is shown, and regulating loop 7 includes: under specific circumstances
- the first fan 11, which contacts with the external environment of neighbouring hollow body 3, and being suitable for will be empty Gas A1It is transmitted in annular space 6;
- the first flow divider or the first crossover valve 12, it is contemplated that air A1Flow direction into annular space 6, this One flow divider or the first crossover valve 12 are placed on 11 downstream of the first fan;
First heater indicates that the first heater is arranged in the first flow divider 12 and moves with 13 on the whole Between hollow body 3.
Particularly, regulating loop 7 limits closed loop path in this way, and which makes by being formed in shell 5 Axial entrance 14 is introduced into the air A in annular space 61Pass through the also high-visible Axial-running Out in fig. 3 formed in shell 5 Mouth 15 comes out from annular space 6, and is recycled by the first fan 11.
Precisely, above-mentioned regulating device determines, first heater 13 is closed and inhibited in the first flow divider 12 Air of the room temperature from external environment when the first flow divider 12 by operating.
Mainly by leather in the internal capacity 4 of hollow body 3 during internal hollow body 3 is rotated around linear axis In the presence of the excessive overheat of inner hollow main body 3 caused by mobile, regulating device suitably controls regulating loop 7, closes and adds Thermal 11 simultaneously opens crossover valve 12, with allow colder air enter in annular space 6-can be cooled down in room temperature-it is hollow The outer wall 3a of main body 3.
It therefore follows that a kind of " cold " mills permission during milling in the given limited period for circulation of entirely milling Dispersion is by the phase mutual friction and identical leather of leather against the inner wall 3d of hollow body 3 and against deflecting blade (in putting for Fig. 4 Part in big figure is as it can be seen that wherein 22 numbers of deflecting blade) phase mutual friction generation excessive heat, this does not have in the prior art There is adversely susceptible of proof in any way.
More specifically, first heater 13, such as at least one resistance, are disposed in the axis formed in shell 5 To the upstream of entrance 14.
Preferably but not exclusively include: with regard to for auxiliary adjustment circuit 9, Fig. 1 illustrates auxiliary adjustment circuits 9
- the second fan 16, the second fan 16 is contacted with the external environment of neighbouring hollow body 3, and is suitable for air A2It is transmitted in the internal capacity 4 of hollow body 3 itself;
- the second flow divider or the second crossover valve 17, it is contemplated that air A2In the flowing being input in removable hollow body 3 Direction, second flow divider or the second crossover valve 17 are placed on the downstream of the second fan 16;
Secondary heating mechanism generally indicates that the secondary heating mechanism is arranged in the second flow divider or the second exchange with 18 Between valve 17 and removable hollow body 3.
Also in this case, particularly, auxiliary adjustment circuit 9 limits closed loop path, which in this way So that being introduced by the axial entrance conduit (axial entry duct) 19 formed in hollow body 3 upper in hollow body 3 State air A2It is come out from hollow body 3 by the axial delivery channel 20 formed in hollow body 3, and is returned by the second fan 16 It receives.
With advantageously but non-binding mode, axial entrance 14 is disposed at axial entrance conduit 19, and Axial-running Out Mouth 15 is disposed at axial delivery channel 20, as being observed that in figure 2 and figure 3.
In addition, by observation Fig. 1, for including what the secondary heating mechanism 18 of for example, at least one resistance can also be stated It is that secondary heating mechanism 18 is arranged in the upstream of the axial entrance conduit 19 formed in hollow body 3.
Preferably but not necessarily, auxiliary adjustment circuit 9 further includes filter device, which generally uses 21 volumes Number and ground as it can be seen that the filter device is placed between delivery channel 20 and the second fan 16, being suitable for undergoing in leather in Fig. 1 Air A is constrained when mill processing2Present in powder, air A2It contacts from hollow body 3 and with leather.
From the perspective of operation, motorized device, regulating loop 7 and regulating device and auxiliary adjustment circuit 9 are being grasped In the available situation of author in the position of neighbouring removable hollow body 3 and neighbouring shell 5 associated therewith with center The electrical connection of processing and control element (PCE) (not shown), central processing and control unit manage its operation: particularly, central processing and control Operation requirement in the internal capacity 4 of unit processed inner hollow main body 3 according to needed for obtaining best softening leather, management heating The starting of device 13 and crossover valve 12.
Therefore, based on the description just provided, it should be understood that the purpose of the present invention, processing of milling for leather change Into roller, realize the purpose and reached advantage mentioned above.
When being executed, the improved roller of the processing of milling for leather of the invention can be changed, changes packet Include for example be previously described and the motorized device of visible motorized device different type and composition in the accompanying drawings, and It and further include transmitting device and/or grass-hopper appropriate.
In addition, other construction embodiments of the invention, can provide, adjust back with reference to figure without accompanying herein Road includes the component for the component for describing and illustrating in the figure for be different from but be equal in the technical effect the following drawings table.
In addition, other embodiments of the improved roller of the special claimed processing of milling for leather herein can To be, wherein regulating device can be different from regulating device described above, change with particular reference to specially claimed herein Into roller preferred embodiment, this does not influence advantage provided by the present invention.
It should be noted that (the embodiment party provided by the present invention anyway in the case where wherein shell is fixed Case), introduce air into annular space may be not necessarily it is axial, because if inner hollow main body (or roller) is in fixation Outer container element in rotation, then air inlet can manufacture in any point of outer container element, in this case, be different from shell Upper to provide the other rotatable wing, other than providing the other rotatable wing on rotating inner part hollow body, air inlet does not have There is special constructivity to constrain.
Finally it is clear that in the case where not departing from novelty principle intrinsic in inventive concept expressed by this paper, Other several changes can be carried out to the improved roller of the processing of milling of the leather for being related to, because it is clear that at this Invention is practiced in embodiment, can according to need the material and shape and size for changing Illustrative details, and be equal with technical Other objects be replaced.
In the case that the construction feature and technology mentioned in the following claims are with having reference number or reference marker, The sole purpose for introducing those reference markers be increase the comprehensibility of claim itself, and therefore they to only passing through example The explanation of each element that is identified by these reference markers of mode there is no limit effects.

Claims (15)

1. the improved roller (1) of the processing of milling for leather, comprising:
Scaffold (2), the scaffold (2) are adapted for blanking out on the reference surface of industrial premises;
Removable hollow body (3), the removable hollow body (3) couple with the scaffold (2) and by least portion Thermally conductive material is divided to be made, the removable hollow body is suitable for being received in volume (4) inside it to by the place that mills The leather of reason;
Motorized device, the motorized device operationally connect in this way with the removable hollow body (3) It connects, the mode makes institute when the leather must be processed in the internal capacity (4) of the hollow body (3) It states removable hollow body and is placed about linear axis (X) rotation;
Shell (5), the shell (5) couple with the scaffold (2) and around the removable hollow body (3), institutes It states shell (5) and the removable hollow body (3) limits annular space (6) together,
It is characterized in that, the improved roller (1) includes regulating loop (7), the regulating loop (7) passes through air (A1) with Removable hollow body (3) cooperation, the regulating loop (7) transmission in the annular space (6) in given temperature Air (A1), the regulating loop (7) needs according to the possibility of the processing of the leather in the hollow body (3) in rotation It asks and is changed in this way by regulating device, the mode keeps the outer wall (3a) of the hollow body (3) In predetermined temperature, the predetermined temperature is considered each rank of the processing for leather described in the hollow body (3) Section is enough, and defines heat by the construction package (8) that the shell (5) and the removable hollow body (3) are formed Exchanger is sent in the annular space (6) and surrounds the institute of the hollow body (3) in the heat exchanger State the air (A of outer wall (3a) flowing1) the first heat-exchange fluid in heat-exchange fluid is represented, and at least:
In rotation the hollow body (3) described in leather the processing initial stage in be it is hot, so as to Help to heat the leather in the internal capacity (4) of the hollow body (3);
In the late stage of the processing of the leather be it is cold, so as to dissipate by by the leather described hollow The excessive heat that the friction moved in the internal capacity (4) of main body (3) generates.
2. the roller (1) described according to claim 1), which is characterized in that handed over by the heat that the construction package (8) limits The second heat-exchange fluid in the heat-exchange fluid of parallel operation is by air (A2) constitute, the air (A2) independently of described Air (the A recycled in annular space (6)1) and the auxiliary adjustment circuit (9) by cooperating with the hollow body (3) It is introduced into the internal capacity (4) of the hollow body (3).
According to claim 1) or 2) 3. the roller (1) described in, which is characterized in that the shell (5) is by selected from by timber, plastics Any being made in the material of the group of material, metal material and/or their combination composition.
4. roller according to any one of the preceding claims, which is characterized in that the shell (5) includes that built-in electrical insulation applies Layer (10), the inner insulated coating layer (10) are fixed to the inner surface (5a) of the shell (5), and described in order to be received into The outer wall (3a) of the mode towards the hollow body (3) in annular space (6).
5. roller (1) according to claim 4, which is characterized in that the inner insulated coating layer (10) is by selected from by poly- ammonia Any being made in the foamed material of the group of ester (PU), polyethylene (PE) and/or analog composition.
6. roller (1) according to any one of the preceding claims, which is characterized in that the shell (5) with it is described hollow Main body (3) integrally moves, and rotates during the processing of the leather around the linear axis (X).
7. roller (1) according to any one of the preceding claims, which is characterized in that the removable hollow body (3) Mutually coaxially and there is cylindrical profile with the shell (5).
8. roller (1) according to any one of the preceding claims, which is characterized in that the regulating loop (7) is arranged It is external in the removable hollow body (3) and the shell (5), and at least partly supported by the scaffold (2).
9. roller (1) according to any one of the preceding claims, which is characterized in that the regulating loop (7) includes:
- the first fan (11), first fan (11) contacts with the external environment of neighbouring hollow body (3), and fits Together in by the air (A1) be transmitted in the annular space (6);
- the first flow divider or the first crossover valve (12), it is contemplated that the air (A1) in being input to the annular space (6) Flow direction, first flow divider or the first crossover valve (12) are placed on the downstream of first fan (11);
First heater (13), the first heater (13) be arranged in first flow divider (12) with it is described removable Between dynamic hollow body (3),
The regulating loop (7) limits closed loop path in this way, and the mode makes by being formed in the shell (5) Axial entrance (14) be introduced into the air (A in the annular space (6)1) pass through the axial direction of formation in the shell (5) It exports (15) to come out from the annular space (6), and is recycled by first fan (11).
10. according to claim 9) described in roller (1), which is characterized in that the first heater (13) is described first Flow divider (12) closes and inhibits the air from the external environment by operating when the first flow divider (12).
11. according to claim 9) or 10) described in roller (1), which is characterized in that the first heater (13) is arranged The upstream of the axial entrance (14) formed in the shell (5).
12. according to claim 2) any one of 11) to the roller (1) described in, which is characterized in that the auxiliary adjustment circuit (9) include:
- the second fan (16), second fan (16) contacts with the external environment of neighbouring hollow body (3), and fits Together in by air (A2) be transmitted in the internal capacity (4) of the hollow body (3);
- the second flow divider or the second crossover valve (17), it is contemplated that the air (A2) it is being input to the removable hollow body (3) flow direction in, second flow divider or the second crossover valve (17) are placed on the downstream of second fan (16);
Secondary heating mechanism (18), the secondary heating mechanism (18) be arranged in second flow divider (17) with it is described removable Between dynamic hollow body (3),
The auxiliary adjustment circuit (9) limits closed loop path in this way, and the mode makes through the hollow body (3) the axial entrance conduit (19) formed in is introduced into the air (A in the hollow body (3)2) pass through the hollow master The axial delivery channel (20) formed in body (3) comes out from the hollow body (3), and is returned by second fan (16) It receives.
13. according to when quoting claim 9), 10) or 11) when claim 12) described in roller (1), which is characterized in that The axial entrance (14) is disposed at the axial entrance conduit (19), and the axial outlet (15) is disposed in institute It states at axial delivery channel (20).
14. according to claim 1 2) or 13) described in roller (1), which is characterized in that the auxiliary adjustment circuit (9) included It filters device (21), the filter device (21) is placed between the delivery channel (20) and second fan (16), is suitable for Constraint comes from the air (A of the hollow body (3)2) present in powder, the leather described in the hollow body (3) It mills described in experience processing.
15. roller (1) according to any one of the preceding claims, which is characterized in that the motorized device, the tune Section circuit (7) and the regulating device be electrically connected with the available central processing of operator and control unit, the central processing with Control unit manages their function.
CN201780087938.3A 2017-03-23 2017-12-04 Improved roller for the grinding treatment of leather Active CN110402291B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT102017000031928A IT201700031928A1 (en) 2017-03-23 2017-03-23 PERFECTED BOTTAL FOR THE TREATMENT OF BOTTALING OF THE SKINS
IT102017000031928 2017-03-23
PCT/IB2017/057604 WO2018172837A1 (en) 2017-03-23 2017-12-04 Improved drum for the milling treatment of leathers

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CN110402291A true CN110402291A (en) 2019-11-01
CN110402291B CN110402291B (en) 2021-08-10

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EP (1) EP3601622B1 (en)
CN (1) CN110402291B (en)
BR (1) BR112019019398B1 (en)
IT (1) IT201700031928A1 (en)
WO (1) WO2018172837A1 (en)

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CN113862403A (en) * 2021-11-10 2021-12-31 无锡市新达轻工机械有限公司 Cold air type temperature and humidity control leather softening machine system

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Publication number Priority date Publication date Assignee Title
IT201900016685A1 (en) * 2019-09-19 2021-03-19 Erretre Spa METHOD OF EXECUTION OF A BOTTLING CYCLE OF LEATHER
IT202000019624A1 (en) * 2020-08-07 2022-02-07 Erretre Spa INDUSTRIAL LEATHER DRUMING PLANT WITH IMPROVED ENVIRONMENTAL IMPACT

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US1623943A (en) * 1923-05-31 1927-04-05 George S Neeley Leather-treating process and apparatus for same
EP0960948A1 (en) * 1998-05-27 1999-12-01 ERRETRE s.r.l. Drum for milling, dyeing and tanning
EP1690950A2 (en) * 2005-02-15 2006-08-16 Erretre S.p.A. Milling, dyeing and retanning drum
CN203247270U (en) * 2013-01-30 2013-10-23 温州致富皮业有限公司 Casing structure of leather milling drum

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WO2015181691A1 (en) * 2014-05-26 2015-12-03 Cos.T.A. S.R.L. Thermostatically controlled cylinder for heat treatments, method for making said cylinder and system comprising said cylinder

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Publication number Priority date Publication date Assignee Title
US1623943A (en) * 1923-05-31 1927-04-05 George S Neeley Leather-treating process and apparatus for same
EP0960948A1 (en) * 1998-05-27 1999-12-01 ERRETRE s.r.l. Drum for milling, dyeing and tanning
EP1690950A2 (en) * 2005-02-15 2006-08-16 Erretre S.p.A. Milling, dyeing and retanning drum
CN203247270U (en) * 2013-01-30 2013-10-23 温州致富皮业有限公司 Casing structure of leather milling drum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113862403A (en) * 2021-11-10 2021-12-31 无锡市新达轻工机械有限公司 Cold air type temperature and humidity control leather softening machine system

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CN110402291B (en) 2021-08-10
EP3601622A1 (en) 2020-02-05
EP3601622B1 (en) 2022-06-29
BR112019019398A2 (en) 2020-04-14
BR112019019398B1 (en) 2023-05-16
IT201700031928A1 (en) 2018-09-23
WO2018172837A1 (en) 2018-09-27

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