EP2037037B1 - Hides cleaning machine - Google Patents
Hides cleaning machine Download PDFInfo
- Publication number
- EP2037037B1 EP2037037B1 EP08425528A EP08425528A EP2037037B1 EP 2037037 B1 EP2037037 B1 EP 2037037B1 EP 08425528 A EP08425528 A EP 08425528A EP 08425528 A EP08425528 A EP 08425528A EP 2037037 B1 EP2037037 B1 EP 2037037B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hides
- hide
- cleaning machine
- cleaning
- rollers
- 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
Links
- 238000004140 cleaning Methods 0.000 title claims description 83
- 239000012535 impurity Substances 0.000 claims description 36
- 230000008929 regeneration Effects 0.000 claims description 29
- 238000011069 regeneration method Methods 0.000 claims description 29
- 239000000428 dust Substances 0.000 claims description 25
- 239000003599 detergent Substances 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- 238000009825 accumulation Methods 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 229920003051 synthetic elastomer Polymers 0.000 claims description 3
- 239000005061 synthetic rubber Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 239000005060 rubber Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 208000028804 PERCHING syndrome Diseases 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000009966 trimming Methods 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06G—MECHANICAL OR PRESSURE CLEANING OF CARPETS, RUGS, SACKS, HIDES, OR OTHER SKIN OR TEXTILE ARTICLES OR FABRICS; TURNING INSIDE-OUT FLEXIBLE TUBULAR OR OTHER HOLLOW ARTICLES
- D06G1/00—Beating, brushing, or otherwise mechanically cleaning or pressure cleaning carpets, rugs, sacks, hides, or other skin or textile articles or fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/50—Cleaning by methods involving the use of tools involving cleaning of the cleaning members
- B08B1/52—Cleaning by methods involving the use of tools involving cleaning of the cleaning members using fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0028—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by adhesive surfaces
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B17/00—Details of apparatus or machines for manufacturing or treating skins, hides, leather, or furs
- C14B17/14—Auxiliary devices for leather-working machines, e.g. grinding devices for blading cylinders or dust-removal devices combined with the working machines
Definitions
- the invention relates to a hides cleaning machine for the use in the tan industry to remove the residual impurities, such as small shreds, fibres or fragments of a hide unrelated to the hide surface.
- the processing of milling causes, in fact, a natural accumulation of electrostatic charges on the faces of the hides, favouring the sticking of extraneous particles, especially the fibres which usually get detached from the grain side of the hides, as known the lower and less valuable layer of the derma of the hide.
- the processing of perching, with which the hides are stressed in order to soften them causes, for its part, the partial or complete detachment of shreds from the grain side.
- the defects must be eliminated before the semifinished hides are subjected to another processing.
- the functioning of the dust removers firstly consists of blowing air on the hide, to raise the dust, the impurities or other extraneous particles, and subsequently of sucking them.
- a machine of recent conception which can be found in the tan field, allows to remove the residual impurities, which remain stuck to the hide surface even after being treated with dust removers or brushing machines and comprises the features of the preamble of claim 1.
- the machine includes a support framework which assures on a support structure and is provided with a conveyor belt receiving the hide to be cleaned.
- the machine includes, also, cleaning means, for example, a series of rollers or a closed loop belt, facing the support framework, which cooperate by contact with the hide surface in order to remove impurities, dust or shreds thereof.
- cleaning means for example, a series of rollers or a closed loop belt, facing the support framework, which cooperate by contact with the hide surface in order to remove impurities, dust or shreds thereof.
- the main purpose of the present invention is to provide a machine for the cleaning of hides which keeps unchanged its performance longer than the equivalent machines of the known type.
- aim of the invention is to carry out a machine for the cleaning of hides in which the cleaning means remain for times longer than those of the prior art in a optimum efficiency state or at least adequate to the use, without this being due to their replacement and/or maintenance.
- a last but not least aim of the present invention is to make available a machine for the cleaning of hides of simple and economic construction.
- the aforesaid aims are achieved through a machine for the cleaning of hides according to claim 1, to which they refer for the sake of brevity.
- the cleaning means are operatively connected with removal means including a superficial coating made of sticky substance which favours the detachment of impurities, dust and shreds from the hide surface.
- the sticky substance is constituted, for example, by a layer of polyurethan gel, silicone or other elastomers and/or natural and synthetic rubbers.
- the machine of the invention restores at the original state or at an appropriate state the cleaning means which previously have removed impurities, shreds or dust from the hide.
- regeneration means remove from the cleaning means the extraneous bodies which have been collected from the hide, ensuring the same cleaning means the possibility of repeating effectively, at a later stage, the operation to which they are responsible.
- the machine of which the protection is required performs in line the operation of regeneration of the cleaning means, without the need to separate the members involved.
- the regeneration of the cleaning means occurs using tools of simple construction, maintenance-friendly, able to keep intact over time their own function.
- the machine object of the present invention allows to achieve significant benefits both in terms of quality of the hides treated with it and in terms of production costs for its set up since the interventions of replacement, repair or maintenance of the regeneration means are strongly limited.
- FIG. 1 The machine, used to clean a hide, is shown in figure 1 where it is globally numbered with 1.
- the machine 1 includes a support framework 2, standing on a support structure S and suitable to receive the hide, and cleaning means, as a whole marked with 3, facing the support framework 2, cooperating by contact with the hide to remove impurities, dust and/or shreds from hide itself.
- the machine 1 includes regeneration means, as a whole numbered with 4, operatively connected with the cleaning means 3 and used to clean the cleaning means 3 from impurities, dust or shreds which have been previously removed by the latter from the hide surface.
- the machine 1 includes a conveyor belt 5, superiorly coupled with the support framework 2 and operatively connected with first motorization means, as a whole marked with 6.
- the conveyor belt 5 receives the hide, for example, placed there by an operator who picks it up from a support pallet where it is stacked with other hides awaiting to be cleaned, in order to put it in advance along a predetermined longitudinal direction X, as shown in figure 2 .
- Figure 1 shows cleaning means 3 which are not covered by the claimed invention which include in preferred but not exclusive way first rollers defining linear axes Y parallel one to each other and perpendicular to the longitudinal direction X along which the laminar surface advances on the conveyor belt 5.
- Each of the first rollers revolves idle around the respective linear axis Y.
- first rollers shown in the figures is given by pure way of pure illustration and example: indeed, in other embodiments, not shown, this number can take any value starting from one, depending on the operative needs or the customers requests.
- the machine includes 1 drawing means, indicated as a whole with 7, facing the support framework 2, more precisely the conveyor belt 5, operatively connected with the cleaning means 3.
- the drawing means 7 keep properly drawn the flexible laminar surface.
- the drawing means 7 comprise seconds rollers defining linear axes, not shown, parallel to the linear axes Y of the first rollers.
- first and second rollers connected with motorization members.
- the first rollers and the second rollers have variable length depending on the constructive choices and purchaser's requests, primarily dictated by the size of the hides to be worked.
- the length of the rollers reaches values of about 3,5 m, allowing to work most of the animal hides.
- the machine 1 includes in this case a plurality of groups of first and second rollers, marked with 8, 9 and with 10, 11, arranged side-by-side one to another along the longitudinal direction X.
- the groups of rollers are two by two reciprocally connected through transmission means, overall reported with 12 and of the type in itself known to the person skilled in the art, such as gear wheels and chains and/or belts or pulleys.
- the first and second rollers of each of the groups 8, 9 and 10, 11 are separated from each other of an arc, of constant or variable value, along an imaginary circumference.
- Each group of rollers 8, 9 and 10, 11 is operatively connected with respective motor means, as a whole numbered with 13, 14 and 15, 16.
- rollers of each of the groups 8, 9 and 10, 11 go along a circular path around a central reference axis, not shown in the drawings that follow.
- each of the rollers of the groups 8, 9 and 10, 11 moves around its own linear axis with relative motion with respect to the rotary motion of the group to which it belongs.
- the first groups of rollers 8, 9 are arranged at the regeneration means 4 in order to clean the outer surface, while the second groups of rollers 10, 11, separated and distinct from the previous ones, are facing the conveyor belt 5 in order to clean the hide in advance.
- the first groups 8 and 9 engaged in the same action in a previous operative phase are subjected to the regeneration means 4 to be efficiently available in a further operative phase to follow, replacing the second groups 10 and 11.
- the cleaning means 3 are provided with removal means 17 suitable to capture from the hide the above cited impurities, dust or shreds.
- the removal means 17 include a superficial coating, applied on the entire outer surface of the first rollers, made in sticky substance which detaches, retaining them, impurities, dust and the like from the flexible laminar surface.
- the sticky substance is any of the materials chosen from the group consisting of an adhesive paper, a layer of natural or synthetic glue, a layer of soft polymer such as polyurethan gel, silicone or other elastomers and/or natural and synthetic rubbers or similar.
- a polymeric material superficial coating in particular, has the considerable advantage of being reusable after appropriate washing.
- removal means are placed only on one or more sections of the outer surface of the cleaning means, in this case consisting of the first rollers.
- the regeneration means 4 are coupled with the support framework 2.
- the regeneration means 4 include a longitudinal brush 18 which cooperates by contact with the superficial coating of the first rollers belonging to the cleaning means 3, as pointed out by the enlarged particular of figure 2a .
- the regeneration means 4 also include a shaped container 19, fixed to the support framework 2, containing inside a detergent bath 20, a mixture of water and other liquids typically used in the tan industry.
- the longitudinal brush 18 includes:
- the longitudinal brush 18 extends substantially for the entire width of the cleaning means 3, in this case for the entire length of the first rollers.
- the improved machine 1 includes second motorization means, as a whole numbered with 23, connected with the central drum 21 of the longitudinal brush 18.
- the regeneration means include one or more longitudinal finishing arms, positioned downstream the longitudinal brush, which remove the residual film of detergent bath remaining on each of the first rollers after the contact with the longitudinal brush.
- the regeneration means may include also blowing means, placed downstream the longitudinal brush, which convey a flow of air under pressure towards the first rollers, achieving a further cleaning thereof.
- the machine 1 also comprises other components usually provided in the machinery of the known art, such as the first detection means, not shown, placed upstream the cleaning means 3, which signal the advance of the laminar surface towards the cleaning means 3.
- the first detection means include known devices, such as photocells, sensors and so on, piloted by a central processing and control unit, for example a programmable logic computer (PLC) apparatus, with which they are electrically connected.
- a central processing and control unit for example a programmable logic computer (PLC) apparatus, with which they are electrically connected.
- PLC programmable logic computer
- the machine 1 also includes drawing means, not shown, positioned downstream the cleaning means 3 and facing the conveyor belt 5, which cooperate by contact with the hide in order to carry out on them the last action of stretching and cleaning.
- the machine 1 also includes second detection means, also not shown, interposed between the cleaning means 3 and the drawing means.
- the second detection means signal the end of the flexible laminar surface so that the drawing means are moved away from the conveyor belt 5, preventing or restricting the formation of unwanted folds on the hide.
- the operator places the hide on the support framework 2, in particular on the conveyor belt 5.
- the operation of the first motorization means 6 moves the hide along the longitudinal direction X and the operation of the motor means 15, 16 rotates clockwise the groups of rollers 10, 11 around the central reference axis previously introduced.
- the operation of the groups of rollers 10, 11 occurs when the first detection means signal the transit of the laminar surface and, therefore, its approach to the cleaning means 3.
- the first rollers of the groups 10, 11 meet the hide advancing along the same longitudinal direction X and the same side of the latter, as well as moving with relative motion around the linear axes Y as idle.
- the special superficial coating with which they are provided permits to the first rollers to detach from the hide impurities or shred of fibre also stuck, which are retained by the removal means 17.
- the speed of rotation of the first and second rollers is greater than the speed of advance of the conveyor belt 5.
- Such an operative condition avoids that the hide wraps in a ruffled manner on the first rollers provided with superficial coating in essentially sticky substance, preventing malfunctions or even arrests of the improved machine 1.
- the groups of rollers 10, 11 are then placed close to the regeneration means 4 for cleaning the impurities just collected from the hide, while the groups of rollers 8, 9, previously inactive, are now moved by the motor means 13, 14 and carry out a cleaning and drawing action on another hide fully equivalent to that carried out by the groups 10, 11.
- the bristles 22 of the longitudinal brush 18 arrange close to the removal means 17 (the superficial coating) of the first rollers from which remove or detach impurities or shreds of fibre, largely restoring the original state of efficiency of the first rollers.
- the longitudinal brush 18 plunges the bristles 22 in the detergent bath 20 contained inside the shaped container 19, thus obtaining a cleaning at least partly of the bristles 22.
- the machine 1 achieves the regeneration of the cleaning means 3 of a hide in an extremely practical, quick and easy way.
- the cleaning of the hide implemented by the machine 1 is optimal and efficient, being able to remove that sort of impurities hardly removable with equivalent machines of the known type.
- the cleaning means may include first rollers, each of which split into several cylinders arranged side-by-side and aligned one each other along each of the linear axes.
- the cylinders will present the same lengths and whose sum determines the length of the first rollers of the cleaning means.
- the removal means will then be associated in an alternate way to the cylinders of the first rollers of each of the cleaning means.
- the removal means of one of the first rollers may be staggered of a given length, equal to that one of each of the cylinders, with respect to the removal means of another first roller.
- the cleaning means may include one or more buffer plates, operated alternately against the hide to be cleaned, obviously provided with the same removal means specified before.
- the cleaning means will also include at least one closed loop belt, always provided with the removal means of the type described above, supported by rotating cylinders which arrange stretches one consecutive to the other of the side surface of the closed belt close to the hide
- the regeneration means will act on the cleaning means from a remote location with respect to that one where the same cleaning means interfere with the hide, removing impurities, dust or shred of fibre from a portion of the closed belt while another portion of the latter is performing the cleaning of the hide.
- the regeneration means can conveniently provide in this case not only the longitudinal brush or other similar tools already mentioned, but also the longitudinal finishing arms and blowing means, arranged downstream the brush or tools themselves.
- the regeneration means cooperating with the aforesaid closed belt may include a plurality of spouts of detergent liquid, for example water, which, in use, interfere with the rotating belt itself.
- These spouts of detergent liquid come out from a plurality of through holes made in a longitudinal tubular element facing the closed belt.
- the tubular element belongs to a hydraulic blow-by circuit which includes a positive-displacement pump and an accumulation tank of the detergent treatment liquid, in communication one with each other and coupled with the support framework below the closed belt, as well as pipes of connection to the tubular element.
- the machine will in this case includes:
- the container will be provided with auxiliary filtering means which retain the impurities, dust or shreds and consist, for example, of a removable reticular fabric cloth which the operator can easily collect, clean and/or replace.
- the regeneration means may include one or more longitudinal rollers, each of which coated with a laminar layer made of porous material chosen from the group consisting of sponge, felt, fabric, rubber and the like.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cleaning In General (AREA)
- Manufacturing Of Printed Wiring (AREA)
Description
- DESCRIPTION The invention relates to a hides cleaning machine for the use in the tan industry to remove the residual impurities, such as small shreds, fibres or fragments of a hide unrelated to the hide surface.
- These impurities remain superficially on the hide even after the normal cleaning operations carried out, for example with dust removers or with suction machines, prior to the finishing operations or dressing such as the pigmentation or colour spraying. It is known that the industrial processing of hides consists of a series of mechanical operations with which it is provided, for example, the trimming, splitting, shearing or perching of the hide.
- Such operations are carried out through special equipment and take place in subsequent stages of the production process.
- During the normal working to which the hides are subjected in the tan industry, it often happens that impurities or dust of various kind, as well as small scraps of fibre, settle on the side faces of the hides themselves and adhere to them to a marked extent, creating significant superficial defects.
- This can be mostly noted after the processing of "milling" of the hides in machinery known as drum tumblers, or after their processing in machines known as perching machines and intended to soften the hides after appropriate drying and conditioning.
- The processing of milling causes, in fact, a natural accumulation of electrostatic charges on the faces of the hides, favouring the sticking of extraneous particles, especially the fibres which usually get detached from the grain side of the hides, as known the lower and less valuable layer of the derma of the hide.
- The processing of perching, with which the hides are stressed in order to soften them, causes, for its part, the partial or complete detachment of shreds from the grain side.
- Furthermore, the development of superficial defects on side faces of the hides also derives from the fact that, due to production needs between a working and the next, they are usually stacked one on another, placing generally the grain side of the upper hide close to the flower side, the more valuable, of the lower hide.
- With the hides pressed one on another, it is inevitable that shreds or impurities on the grain side of a hide are transmitted and permanently adhere to the flower side of the adjacent hide, compromising the quality of the latter.
- It seems, therefore, essential to remove from the hides impurities and dust to avoid the degrading of the quality of the finished product or, as a result of the trimming of the faulty area, the net loss of part of the available surface of the hides.
- The elimination of defects must occur before the dressing operations which, typically, include the spraying of chemicals such as colours, pigments, solvents or binders.
- More in general, the defects must be eliminated before the semifinished hides are subjected to another processing.
- Indeed, the processing of hides having certain impurities creates or amplifies superficial defects which declass so heavy the finished product and can be removed only by cutting the faulty areas.
- According to a well-established technology in the tanning field, the cleaning of flexible laminar surfaces from impurities, particles, fragments or extraneous fibres is entrusted to machines known in the field as "dust removers" and "brushing machines", used at any stage of the processing cycle.
- The functioning of the dust removers firstly consists of blowing air on the hide, to raise the dust, the impurities or other extraneous particles, and subsequently of sucking them.
- However, these machines of the known type used to clean hides or similar present the drawback of not being able to completely remove impurities from the hides, especially those one stuck.
- The unfavourable effects of this situation are accentuated in the subsequent operations of spraying and painting which compact the impurities with the laminar surface making them more conspicuous and creating surface defects which, as scattered in sporadic way, are harmful.
- Another drawback, direct consequence of what just said, is due to the fact that to remove the surface defects, it resorts to additional workings, always unwanted, such as trimming of the area of the laminar surface concerned, which cause inappropriate waste production and length manufacture time.
- The alternative is the unavoidable degrading of the quality level of the finished product, with the unfavourable economic losses that this involves.
- A machine of recent conception, which can be found in the tan field, allows to remove the residual impurities, which remain stuck to the hide surface even after being treated with dust removers or brushing machines and comprises the features of the preamble of
claim 1. - The machine includes a support framework which insists on a support structure and is provided with a conveyor belt receiving the hide to be cleaned.
- The machine includes, also, cleaning means, for example, a series of rollers or a closed loop belt, facing the support framework, which cooperate by contact with the hide surface in order to remove impurities, dust or shreds thereof.
- On one hand such a machine carries out in extremely effective manner the cleaning of the hide, also eliminating the minimum impurities or the shreds of difficult removal, on the other hand, however, the cleaning means thanks to which said result is achieved retain the impurities removed from the hide surface, gradually losing their cleaning ability.
- The main purpose of the present invention is to provide a machine for the cleaning of hides which keeps unchanged its performance longer than the equivalent machines of the known type.
- In other words, aim of the invention is to carry out a machine for the cleaning of hides in which the cleaning means remain for times longer than those of the prior art in a optimum efficiency state or at least adequate to the use, without this being due to their replacement and/or maintenance.
- A last but not least aim of the present invention is to make available a machine for the cleaning of hides of simple and economic construction.
- The aforesaid aims are achieved through a machine for the cleaning of hides according to
claim 1, to which they refer for the sake of brevity. - Other features of detail of the machine of the invention can be deducted from the dependent claims.
- According to the invention, the cleaning means are operatively connected with removal means including a superficial coating made of sticky substance which favours the detachment of impurities, dust and shreds from the hide surface.
- The sticky substance is constituted, for example, by a layer of polyurethan gel, silicone or other elastomers and/or natural and synthetic rubbers.
- The machine of the invention restores at the original state or at an appropriate state the cleaning means which previously have removed impurities, shreds or dust from the hide.
- This is because, according to the invention, regeneration means remove from the cleaning means the extraneous bodies which have been collected from the hide, ensuring the same cleaning means the possibility of repeating effectively, at a later stage, the operation to which they are responsible.
- Still advantageously, the machine of which the protection is required performs in line the operation of regeneration of the cleaning means, without the need to separate the members involved.
- Equally advantageously, the regeneration of the cleaning means occurs using tools of simple construction, maintenance-friendly, able to keep intact over time their own function.
- Furthermore, in an advantageous manner, the machine object of the present invention allows to achieve significant benefits both in terms of quality of the hides treated with it and in terms of production costs for its set up since the interventions of replacement, repair or maintenance of the regeneration means are strongly limited.
- These aims and advantages will appear to a greater extent by the description of a preferred embodiment of the invention given by way of illustrative but not limited example with reference to the attached drawings where:
-
figure 1 is a simplified perspective view of a machine not covered by the claimed invention; -
figure 2 is a side view offigure 1 ; -
figure 2a is the simplified and schematic cross section of an enlarged particular offigure 2 ; -
figure 3 is the side view from the rear offigure 1 . - The machine, used to clean a hide, is shown in
figure 1 where it is globally numbered with 1. - For ease of exposition, the hide is not depicted in the attached drawings.
- As it is observed, the
machine 1 includes asupport framework 2, standing on a support structure S and suitable to receive the hide, and cleaning means, as a whole marked with 3, facing thesupport framework 2, cooperating by contact with the hide to remove impurities, dust and/or shreds from hide itself. - The
machine 1 includes regeneration means, as a whole numbered with 4, operatively connected with the cleaning means 3 and used to clean the cleaning means 3 from impurities, dust or shreds which have been previously removed by the latter from the hide surface. - At preferential title, the
machine 1 includes aconveyor belt 5, superiorly coupled with thesupport framework 2 and operatively connected with first motorization means, as a whole marked with 6. - The
conveyor belt 5 receives the hide, for example, placed there by an operator who picks it up from a support pallet where it is stacked with other hides awaiting to be cleaned, in order to put it in advance along a predetermined longitudinal direction X, as shown infigure 2 . -
Figure 1 shows cleaning means 3 which are not covered by the claimed invention which include in preferred but not exclusive way first rollers defining linear axes Y parallel one to each other and perpendicular to the longitudinal direction X along which the laminar surface advances on theconveyor belt 5. - Each of the first rollers revolves idle around the respective linear axis Y.
- Please note that the number of first rollers shown in the figures is given by pure way of pure illustration and example: indeed, in other embodiments, not shown, this number can take any value starting from one, depending on the operative needs or the customers requests.
- The machine includes 1 drawing means, indicated as a whole with 7, facing the
support framework 2, more precisely theconveyor belt 5, operatively connected with the cleaning means 3. - The drawing means 7 keep properly drawn the flexible laminar surface.
- In the described example, similarly to the cleaning means 3, the drawing means 7 comprise seconds rollers defining linear axes, not shown, parallel to the linear axes Y of the first rollers.
- Even each of the second rollers revolves idle around the corresponding linear axis.
- It is understood, however, that other examples of the machine may include first and second rollers connected with motorization members.
- The first rollers and the second rollers have variable length depending on the constructive choices and purchaser's requests, primarily dictated by the size of the hides to be worked.
- However, the length of the rollers reaches values of about 3,5 m, allowing to work most of the animal hides.
- As shown in
figure 2 , themachine 1 includes in this case a plurality of groups of first and second rollers, marked with 8, 9 and with 10, 11, arranged side-by-side one to another along the longitudinal direction X. - The groups of rollers are two by two reciprocally connected through transmission means, overall reported with 12 and of the type in itself known to the person skilled in the art, such as gear wheels and chains and/or belts or pulleys.
- The first and second rollers of each of the
groups - Each group of
rollers - The rollers of each of the
groups - In this execution, then, each of the rollers of the
groups - In particular, from
figures 1 and 2 it is deduced that, preferably but not necessarily, the first groups ofrollers 8, 9 are arranged at the regeneration means 4 in order to clean the outer surface, while the second groups ofrollers conveyor belt 5 in order to clean the hide in advance. - Therefore, in the operative phase in which the
second groups first groups 8 and 9, engaged in the same action in a previous operative phase, are subjected to the regeneration means 4 to be efficiently available in a further operative phase to follow, replacing thesecond groups - In an advantageous way, the cleaning means 3 are provided with removal means 17 suitable to capture from the hide the above cited impurities, dust or shreds.
- More specifically, the removal means 17 include a superficial coating, applied on the entire outer surface of the first rollers, made in sticky substance which detaches, retaining them, impurities, dust and the like from the flexible laminar surface.
- The sticky substance is any of the materials chosen from the group consisting of an adhesive paper, a layer of natural or synthetic glue, a layer of soft polymer such as polyurethan gel, silicone or other elastomers and/or natural and synthetic rubbers or similar.
- A polymeric material superficial coating, in particular, has the considerable advantage of being reusable after appropriate washing.
- Further examples not represented, may provide that the removal means are placed only on one or more sections of the outer surface of the cleaning means, in this case consisting of the first rollers.
- As far as the regeneration means 4 are concerned, they are coupled with the
support framework 2. According to the preferred example the regeneration means 4 include alongitudinal brush 18 which cooperates by contact with the superficial coating of the first rollers belonging to the cleaning means 3, as pointed out by the enlarged particular offigure 2a . - The regeneration means 4 also include a shaped
container 19, fixed to thesupport framework 2, containing inside adetergent bath 20, a mixture of water and other liquids typically used in the tan industry. - Preferably, the
longitudinal brush 18 includes: - a
central drum 21 revolvingly constrained toside edges container 19 and having a central axis Y', parallel to the linear axes of the first and second rollers, arranged at a predefined distance D from the bottom 19c of the shapedcontainer 19 itself; - a plurality of
bristles 22, projecting from thecentral drum 21, part of which, during the regeneration of the cleaning means 3, plunges in thedetergent bath 20. - As it is clear from
figure 3 , thelongitudinal brush 18 extends substantially for the entire width of the cleaning means 3, in this case for the entire length of the first rollers. - The
improved machine 1 includes second motorization means, as a whole numbered with 23, connected with thecentral drum 21 of thelongitudinal brush 18. - Other examples, not shown, may provide that the regeneration means include one or more longitudinal finishing arms, positioned downstream the longitudinal brush, which remove the residual film of detergent bath remaining on each of the first rollers after the contact with the longitudinal brush.
- The regeneration means may include also blowing means, placed downstream the longitudinal brush, which convey a flow of air under pressure towards the first rollers, achieving a further cleaning thereof.
- The
machine 1 also comprises other components usually provided in the machinery of the known art, such as the first detection means, not shown, placed upstream the cleaning means 3, which signal the advance of the laminar surface towards the cleaning means 3. - The first detection means include known devices, such as photocells, sensors and so on, piloted by a central processing and control unit, for example a programmable logic computer (PLC) apparatus, with which they are electrically connected.
- In a preferred but not exclusive way, the
machine 1 also includes drawing means, not shown, positioned downstream the cleaning means 3 and facing theconveyor belt 5, which cooperate by contact with the hide in order to carry out on them the last action of stretching and cleaning. - The
machine 1 also includes second detection means, also not shown, interposed between the cleaning means 3 and the drawing means. - The second detection means signal the end of the flexible laminar surface so that the drawing means are moved away from the
conveyor belt 5, preventing or restricting the formation of unwanted folds on the hide. - In use, the operator places the hide on the
support framework 2, in particular on theconveyor belt 5. - Then, the operation of the first motorization means 6 moves the hide along the longitudinal direction X and the operation of the motor means 15, 16 rotates clockwise the groups of
rollers - The operation of the groups of
rollers - In such a way, the first rollers of the
groups - The special superficial coating with which they are provided permits to the first rollers to detach from the hide impurities or shred of fibre also stuck, which are retained by the removal means 17.
- The speed of rotation of the first and second rollers is greater than the speed of advance of the
conveyor belt 5. - Such an operative condition avoids that the hide wraps in a ruffled manner on the first rollers provided with superficial coating in essentially sticky substance, preventing malfunctions or even arrests of the
improved machine 1. - Furthermore, this aid in collecting impurities or other extraneous fibres from the hide and, at the same time, to effectively drawn it.
- When the second detection means indicate that the end of the hide has reached the last of the rollers of the
group 11, the groups ofrollers - The groups of
rollers rollers 8, 9, previously inactive, are now moved by the motor means 13, 14 and carry out a cleaning and drawing action on another hide fully equivalent to that carried out by thegroups - Moving the second motorization means 23, the
central drum 21 of thelongitudinal brush 18 rotates around the central axis Y' while the new operation of the motor means 15, 16 moves the groups ofrollers - As a result, the
bristles 22 of thelongitudinal brush 18 arrange close to the removal means 17 (the superficial coating) of the first rollers from which remove or detach impurities or shreds of fibre, largely restoring the original state of efficiency of the first rollers. - In its rotation, the
longitudinal brush 18 plunges thebristles 22 in thedetergent bath 20 contained inside the shapedcontainer 19, thus obtaining a cleaning at least partly of thebristles 22. - The
machine 1 achieves the regeneration of the cleaning means 3 of a hide in an extremely practical, quick and easy way. - This happens without stopping the process of cleaning the hide but in line, while the
machine 1 operates at full capacity. - In addition, with the same regeneration means the cleaning of the cleaning means 3 is carried out for several cycles, without the need to replace frequently the regeneration means, with the obvious economic and management benefits for the producer which come from this, in relation to quantity and codes article to be bought and stored.
- The cleaning of the hide implemented by the
machine 1 is optimal and efficient, being able to remove that sort of impurities hardly removable with equivalent machines of the known type. - In terms of execution, it is possible to make changes to the machine which are realized, for example, in a support framework which differs from that one detectable by the drawings.
- They may exist other examples, still not accompanied by drawings, in which the machine includes cleaning means which differ from those ones described during this work.
- The cleaning means may include first rollers, each of which split into several cylinders arranged side-by-side and aligned one each other along each of the linear axes.
- In this eventuality, the cylinders will present the same lengths and whose sum determines the length of the first rollers of the cleaning means.
- The removal means will then be associated in an alternate way to the cylinders of the first rollers of each of the cleaning means.
- In addition, the removal means of one of the first rollers may be staggered of a given length, equal to that one of each of the cylinders, with respect to the removal means of another first roller.
- This ensures that every area of the hide is subjected to cleaning by the removal means and allows a good distribution and extension of the hide itself, without the creation of unwanted folds.
- Moreover, in other examples the cleaning means may include one or more buffer plates, operated alternately against the hide to be cleaned, obviously provided with the same removal means specified before.
- In the machine of the invention, the cleaning means will also include at least one closed loop belt, always provided with the removal means of the type described above, supported by rotating cylinders which arrange stretches one consecutive to the other of the side surface of the closed belt close to the hide
- In such a circumstance, the regeneration means will act on the cleaning means from a remote location with respect to that one where the same cleaning means interfere with the hide, removing impurities, dust or shred of fibre from a portion of the closed belt while another portion of the latter is performing the cleaning of the hide.
- This allows to the closed belt always to achieve in the best efficiency conditions the position facing the hide.
- In this regard, the regeneration means can conveniently provide in this case not only the longitudinal brush or other similar tools already mentioned, but also the longitudinal finishing arms and blowing means, arranged downstream the brush or tools themselves.
- Furthermore, in accordance with other embodiments of the machine of the invention, not represented, the regeneration means cooperating with the aforesaid closed belt may include a plurality of spouts of detergent liquid, for example water, which, in use, interfere with the rotating belt itself.
- These spouts of detergent liquid come out from a plurality of through holes made in a longitudinal tubular element facing the closed belt.
- The tubular element belongs to a hydraulic blow-by circuit which includes a positive-displacement pump and an accumulation tank of the detergent treatment liquid, in communication one with each other and coupled with the support framework below the closed belt, as well as pipes of connection to the tubular element.
- In advantageous way, the machine will in this case includes:
- a longitudinal collecting and conveying carter of the detergent liquid, arranged below the tubular element and one of the rotating cylinders which support the closed belt: the carter receives the dirty detergent liquid, containing impurities, dust or shreds just removed by it from the hide undergoing treatment;
- an auxiliary container accessible by the operator, communicating on one side with one end of the longitudinal carter from which receives the detergent liquid which conveys impurities, dust or similar, and on the other side with the accumulation tank which conveys clean detergent liquid.
- The container will be provided with auxiliary filtering means which retain the impurities, dust or shreds and consist, for example, of a removable reticular fabric cloth which the operator can easily collect, clean and/or replace.
- In other embodiments of the invention, moreover, the regeneration means may include one or more longitudinal rollers, each of which coated with a laminar layer made of porous material chosen from the group consisting of sponge, felt, fabric, rubber and the like.
- It is, finally, clear that several other variations may be made to the improved machine in question, without for this reason going out of the novelty principles inherent to the inventive idea, as it is clear that, in the practical implementation of the invention, materials, shapes and sizes of the details could be any, depending on the needs, and could be replaced with others technically equivalent.
Claims (16)
- Hides cleaning machine (1) including:- a support framework (2) suitable to receive said hide and to stand on a support structure (S);- cleaning means (3), facing said support framework (2), suitable to cooperate by contact with said hide to remove impurities, dust and/or shreds from said hide, said cleaning means (3) including at least one closed loop belt, supported by and extending between rotating rollers and arranged so that consecutive areas of the outer side surface of said closed belt cooperate by contact with said hide, said cleaning means (3) being provided with removal means (17) in order to capture said impurities, dust and/or shreds from said hide;
characterized in that the hides cleaning machine (1) includes- regeneration means (4) operatively connected with said cleaning means (3), suitable to clean said cleaning means (3) by said impurities, dust and/or shreds removed from said hide,
said removal means (17) include a superficial coating made of sticky substance suitable to detach from said hide and to retain said impurities, dust and/or shreds. - Hides cleaning machine (1) according to claim 1) characterized in that said sticky substance is any of the materials chosen from the group consisting of an adhesive paper, a layer of natural or synthetic glue, a layer of soft polymer such as polyurethan gel, silicone or other elastomers and/or natural and synthetic rubbers.
- Hides cleaning machine (1) according to any of the previous claims characterized in that said regeneration means (4) are coupled with said support framework (2).
- Hides cleaning machine (1) according to claim 1) characterized in that said regeneration means (4) include at least one longitudinal brush (18) which cooperates by contact with said superficial coating of said removal means (17) and extends substantially for the whole width of said cleaning means (3).
- Hides cleaning machine (1) according to claim 4) characterized in that said regeneration means (4) include a shaped container (19), fixed to said support framework (2), containing inside a detergent bath (20).
- Hides cleaning machine (1) according to claim 5) characterized in that said longitudinal brush (18) includes:- a central drum (21), connected with second motorization means (23) and revolvingly constrained to side edges (19a, 19b) opposed one to each other of said shaped container (19), having a central axis (Y') arranged at a predefined distance (D) from the bottom (19c) of said shaped container (19);- a plurality of bristles (22), projecting from said central drum (21), part of which, during cleaning operations performed on said cleaning means (3), plunges at least partially in said detergent bath (20).
- Hides cleaning machine (1) according to claim 5) characterized in that said regeneration means (4) include at least one longitudinal finishing arm, placed downstream said longitudinal brush, suitable to remove the residual film of said detergent bath remaining on said cleaning means (3) after the contact with said longitudinal brush.
- Hides cleaning machine (1) according to claim 1) characterized in that said regeneration means (4) include at least one longitudinal roller coated with a laminar layer made of porous material chosen from the group consisting of sponge, felt, fabric, rubber.
- Hides cleaning machine (1) according to any of the previous claims characterized in that said regeneration means (4) include blowing means suitable to convey a flow of air under pressure against said cleaning means (3).
- Hides cleaning machine (1) according to claim 1) characterized in that said regeneration means (4) comprise a plurality of detergent liquid spouts, suitable to interfere with said rotating closed loop belt, coming out from a plurality of through holes made in a longitudinal tubular element facing said closed belt.
- Hides cleaning machine (1) according to claim 10) characterized in that said tubular element belongs to a hydraulic blow-by circuit which includes a positive-displacement pump and an accumulation tank of said detergent liquid, in communication one with each other and coupled with said support framework (2), and pipes of connection to said tubular element.
- Hides cleaning machine (1) according to claim 11) characterized in that it comprises:- a longitudinal collecting and conveying carter of said detergent liquid, arranged below said tubular element and one of said rotating rollers which support said closed belt, said carter being suitable to receive said detergent liquid containing said impurities, dust and/or shreds just removed from said hide;- an auxiliary container accessible by the operator, communicating on one side with said longitudinal carter from which receives said detergent liquid with said impurities, dust, and/or shreds and on the other side with said accumulation tank to which conveys clean detergent liquid, provided with removable type filtering means suitable to retain said impurities, dust and/or shreds.
- Hides cleaning machine (1) according to claim 1) characterized in that it includes a conveyor belt (5), coupled with said support framework (2) and operatively connected with first motorization means (6), said conveyor belt (5) being suitable to receive said hide proceeding along the longitudinal direction (X).
- Hides cleaning machine (1) according to claim 3) characterized in that it includes drawing means (7), coupled with said support framework (2), suitable to keep drawn said hide, said drawing means (7) including a plurality of second rollers defining linear axes, around which said second rollers rotates, parallel to each other and to said linear axes (Y) of said first rollers.
- Hides cleaning machine (1) according to claim 14) characterized in that it includes a plurality of groups (8, 9, 10, 11) of said second rollers, each of said groups (8, 9, 10, 11) being arranged side-by-side one each other and operatively connected with motor means (13, 14, 15, 16), said groups (8, 9, 10, 11) being two by two reciprocally connected by transmission means (12).
- Hides cleaning machine (1) according to claim 15) characterized in that said rollers of each of said groups (8, 9, 10, 11) go along a circular path around a central reference axis.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000235A ITVI20070235A1 (en) | 2007-08-13 | 2007-08-13 | PERFECT MACHINE FOR THE CLEANING OF FLEXIBLE LAMINAR SURFACES. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2037037A1 EP2037037A1 (en) | 2009-03-18 |
EP2037037B1 true EP2037037B1 (en) | 2012-06-27 |
Family
ID=39951593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08425528A Active EP2037037B1 (en) | 2007-08-13 | 2008-07-30 | Hides cleaning machine |
Country Status (2)
Country | Link |
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EP (1) | EP2037037B1 (en) |
IT (1) | ITVI20070235A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109013566A (en) * | 2018-06-21 | 2018-12-18 | 桂兆林 | A kind of parkway side Euonymus japonicus greenbelt cobweb descaling machine |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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ITPN20130038A1 (en) * | 2013-07-02 | 2015-01-03 | Luigino Salvador | DEVICE FOR THE CLEANING OF FLAT SURFACES OF PANELS INTENDED FOR FOLLOW-UP PROCESSING |
EP3059326B1 (en) * | 2015-02-18 | 2017-06-21 | GE.MA.TA. S.p.A. | De-dusting machine for cleaning leathers |
CN108070680A (en) * | 2018-01-04 | 2018-05-25 | 海宁德阳高分子材料科技有限公司 | A kind of leather processing dust-extraction unit |
CN110528255B (en) * | 2019-10-12 | 2020-07-07 | 九江思特达科技有限公司 | Viscose formula textile fabric dust collector |
CN112921132A (en) * | 2021-02-03 | 2021-06-08 | 李跃刚 | Fur surface cleaning device for poultry and animal skin fur products |
CN113152056B (en) * | 2021-03-09 | 2022-10-28 | 黄建宁 | Lint removing device for textile fabric and using method thereof |
CN115121510B (en) * | 2022-06-30 | 2023-10-13 | 扬州市检验检测中心 | Environment-friendly purifying device |
CN117364454A (en) * | 2023-10-18 | 2024-01-09 | 东莞市福到来家纺用品有限公司 | Multi-layer garment fabric processing and forming equipment and method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE826481C (en) * | 1950-10-25 | 1952-01-17 | Alexander Stuttmann | Hand tool for cleaning and brushing animal skins |
DE2345739A1 (en) * | 1973-09-11 | 1975-03-20 | Est Coriarii | Removing dust from tanned skins such as chamois - permeable conveyor belts support skins held at full width |
GB1589565A (en) * | 1977-07-07 | 1981-05-13 | Vertex Eng Ltd | Apparatus for cleaning fabrics |
JPS58182234A (en) * | 1982-04-17 | 1983-10-25 | Dainippon Screen Mfg Co Ltd | Washing apparatus allowing use of plural kinds of brushes |
JPS6139523A (en) * | 1984-07-31 | 1986-02-25 | Shioya Seisakusho:Kk | Scrubber |
JP3122370B2 (en) * | 1996-05-29 | 2001-01-09 | 株式会社伸興 | Dust removal device |
WO2005092525A1 (en) * | 2004-03-25 | 2005-10-06 | Baldwin-Japan Ltd. | Dust remover for printing or processing sheet |
GB0425120D0 (en) * | 2004-11-13 | 2004-12-15 | Technijet Ltd | Cleaning apparatus and method |
-
2007
- 2007-08-13 IT IT000235A patent/ITVI20070235A1/en unknown
-
2008
- 2008-07-30 EP EP08425528A patent/EP2037037B1/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109013566A (en) * | 2018-06-21 | 2018-12-18 | 桂兆林 | A kind of parkway side Euonymus japonicus greenbelt cobweb descaling machine |
Also Published As
Publication number | Publication date |
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EP2037037A1 (en) | 2009-03-18 |
ITVI20070235A1 (en) | 2009-02-14 |
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