DK175872B1 - Method and machine are for removal of dried skin extended on stretching unit and involve devices for severing fixture holder pouches and for removal of securing clamps in skin - Google Patents

Abstract

The method and machine are for the removal of a dried skin extended on a stretching unit and involve devices for severing fixture holder pouches and for removal of securing clamps in the skin and hook holders movable in the stretching unit longitudinal axis. A holding mechanism (24) secures the stretching unit whilst the skin is released and withdrawn from it.

Description

in DK 175872 B1

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for machine removing dried skins stretched on tans, wherein the skins are secured and stretched on a tan with a tan bag, and provided with a fixed coating bag drawn beyond the tinned skin whose lower part of the back skin may further be attached to the tan with at least a staple.

Removal of especially mink skins after drying them extensively on tans constitutes a not insignificant manual work in the production of skins, in particular mink skins. It should be noted here that hereinafter referred to as 10 mink skins, this should be understood in a broader sense so that there may also be fox skins, sable and similar types of skins which are extensively dried and attached to tans. By fixed bag is meant a coating bag which is pulled out of the skin when in a tan machine it is extended on a tan in such a way that the bag locks the skin in its extended position. The bag, which may be formed of paper, foil, or other material which may be elastic, has perforations which allow diffusion of moisture during the drying process of the skin, but which also prevents the hair side of the skin from drying out too much.

The fixing bag is known from WO 01/62986 A1.

The extensive manual work involved in removing mink fur causes 20 a not insignificant cost to the fur manufacturers, which in turn means that the price of fur is relatively high. In connection with the removal of the skin from the tan, a number of different processes must typically be carried out before it is possible to free the skin from the tan. For example, in the case of removing skins, where these are attached to the tan by means of staples, it will first be necessary to remove the staples 25 before a skin can be removed from the tan. In the event that the skin is held in its extended position for the tan during the drying process by means of a fixing bag, it will be convenient before removing the skin from the tan that the fixing bag is first removed through the front of the skin. In the event that the skin is retained by a combination of staples and a fixed holding bag, it will be necessary to remove both the fixed holding bag covering the area of the back of the skin where the staples are inserted and the staples prior to the release of the skin from the tan, performed.

DK 175872 B1 I

The actual removal of the skin from the tan can also be a relatively demanding job

perform as the skin may be adhered to the tane surface due to the present

room of proteins etc. which in the drying process has caused a sticking of I

the hub side of the skin to the tane surface. To counter the adhesion and to

In order to avoid excessive contamination of the tan, an intermediate layer is typically used, H

the tane surface and the inside of the skin (hub side) for suction and absorption of fat H

and for reducing the aforementioned adhesive effect. H

To facilitate the work in connection with the removal of staples is known from the Danish H

10 patent number DK 169 498 Bl apparatus for automatic removal of staples which

is used for attaching a mink skin in an extended position to a tane. This machine I

has led to a not insignificant relief and reduction of the manual work involved

goes for cleavage in connection with skin removal. However, said I

machines not applicable in connection with the removal of skins retained in H

15 extended position on tans by means of fixed bags respectively or by means of I

a combination of fix bags and staples. IN

It is the object of the present invention to provide a method for gene I

Implementation of a machine removal of dried skins stretched on tans where the skins are

20 outstretched on a tane with a tan bag, and retained with a fixed coating bag drawn I

without over the tanned skin, the lower part of the back skin can further

be attached to the tan with at least one staple. Furthermore, it is the invention- H

It is the object of the present invention to provide a machine for carrying out the method according to the invention. H

25 A method for machine removal of dried skins stretched on tans is given in I

in the characterizing part of claim I. Hereby it is obtained that by successively performing opera- H

tions on a tane with a taned skin then retained in a recess in a hollow

demo mechanism, both a cut of the fix-coating bag and a butterfly-I are performed

view of any clips that may be present for retaining the mink skin in its extended pole

30 position on the tan, a removal of the fix bag and a release of the skin from the tan, thus

that it will subsequently be possible to quite easily remove the skin completely from the tan, and

carry this on to the normal finishing of the skin. There is thus a spa

rather a not insignificant manual work that could reduce the cost of the DK 175872 B1 3 fur manufacturer. The process builds as far as the removal of any. occurring staples, on the technique that can be deduced from DK 169 498 Bl

Although the above method has resulted in significant reductions in the manual work to be performed in connection with the removal of skins, however, these can be forwarded to auction etc. further and quite manual work with the now released and free-skinned skins. These work consists of removing the tan from the inside of the skin, brushing the skin on its front, removing any tan bags inside the skin, labeling the skin, and finally sorting the 10 skins into relevant size categories.

A method of eliminating manual work in connection with the above operations is set forth in the characterizing part of claim 2. Here, the skin is displaced so that it is pulled through rotating brushes located in the feed directions of the skin 15 above and below the skin, which means that any tan bag inside the skin will be loosened due to the mechanical machining that takes place during the rotating brushes, removal of the bag, handling of the now free-skinned tane for a corresponding collection magazine for the relevant tanning size, labeling the skin by inserting a talon into the skin with a talon machine, 20 and finally depositing the skin in one for it. relevant skin size relevant collection container. In the specified methods for removing the skins, a combination of successively performed operations has been disclosed which completely automates the removal procedure and the subsequent finishing of the top of the skin with brushes as well as sorting of the taneme and the skins thereof.

25

A machine for carrying out the method according to claim 1 is set forth in the characterizing part of claim 3. In the machine, it is obtained that a skin is extended and held onto a tine by means of a fixing bag and, optionally, by means of clamps, being released by removing said The clamp and fixing bag and free are subsequently moved at the longitudinally displaceable chin holder in the direction away from the tan foot. it should be noted that the chin holder, as stated in claim 3, is only presumed to be displaced a very short distance sufficient to free the skin from the tan. This embodiment of the machine is thus intended to carry out about half of

DK 175872 B1 I

the dismantling procedure and a machine for implementation I

of these operations will in itself be very labor-saving. The ten

It should be noted that the machine according to claim 3 is intended solely for removing mink skins,

which is held in an extended position on tans by means of a fixed holding bag. IN

With the intention of further being able to use the machine for removing skins, which in addition to I

the fixation bag being held in its extended position on the tan by one or more I

staples positioned preferably at the lower part of the back skin, the machine can also be extended

further comprising a clamping shutter as defined in the characterizing part of claim I

10 4. I

In the intention of being able to complete a complete separation between the skin and the tan, you can

the machine be arranged with a stamp on the displacement of the chin holder, which has an I

operative length, it allows displacement of the chin holder at least into a full I

15 skin length as specified in claim 5. I

In order to ensure a quick and effective removal of the skin from the chin holder, you can

the machine further comprises a skin pusher in connection with the chin holder which I

it is specified in claim 6. Upon displacement of the plate to the active position, the plate I

20 front, curved and adapted to the appearance of the skin, push the skin off the spear. You will

typically be a compressed air piston used to displace the plate, which will assist

conduct a near instantaneous release of the skin from the chin holder. It presupposes na- I

usually, upon activating the piston, the plate is returned to its passive position immediately

divisible after the active position has been occupied. IN

25. IN

In order to obtain a brushing of the upper surface of the skin as well as to obtain a mechanical

machining the skin so that the tan bag is detached from the inside of the skin, you can

the machine is equipped with motor-driven rotatable brushes as specified in claim I

7. This results in simultaneous brushing and mechanical machining of the skin simultaneously

30 with this being released and removed from the tan. IN

In order to further facilitate the handling of the skins and various bags liberated

The machine may be provided with an equipment mechanism for said tanner,

5 DK 175872 B1 such that these equipment for collection magazines relevant to the tan size concerned, as specified in claim 8.

In order to ensure identification of the respective skins processed in the removal machine, this may comprise a talon machine for inserting a talon at the end of the skin as set forth in claim 9. This will enable rapid and effective to sort the removed skins in bundles according to manufacturer, size, or similar sorting criteria.

10 in order to achieve an efficient and rapid removal of any tan bags within the skins, the machine may be arranged as stated in claim 10. This ensures that the area around the machine is tidy as there is no floor area. mm. used used tan bags to the detriment of the personnel who had to move here.

In order to ensure the sorting of the mink skins in the correct size category, the guide means for the chin holder can be arranged so as to enable the mink skins to be deposited for depositing the particular skins in a collection container relevant to the skins size as specified in claim 11.

20

An essential prerequisite for an efficient operation of the machine for carrying out the method according to the invention will be that the chin holder has a good grip and a firm grip in the chin portion of the skin. This is important as when removing the skin from the tan, a not insignificant pull is exerted in the skin and furthermore, retention of the skin in the chin holder during the subsequent procedures will be a prerequisite for the implementation of these procedures. In order to achieve a highly effective retention of the skin portion of the skin in the hanger holder, this may be arranged as is evident from the characterizing part of claim 12. In the semicircular design of the underside of the skewer for the hanger holder on the corresponding piston surface, an increase of the area of contact between the chin holder and the skin.

This increase in contact area will result in improved retention of the skin and further reduce the strain on the skin inside and outside this area in connection with the removal of the skin from the tan.

DK 175872 B1 I

In order to further improve the holding capacity of the garden holder, you can

the side facing the piston and / or the side facing the piston I

side of the piston be formed with a profiling or a corrugation as it is

As stated in claim 13. This results in better retention of the skin, especially on its hub

S side. IN

The operation of the machine is assumed to be automated by means of a control unit provided

bound with various necessary sensors and signal generators of known type. Said sensors and

signal transmitters and control unit are not shown, with their presence being a prerequisite I

10 for carrying out a sequential control of the machine functions according to progress I

way. IN

The invention will be explained in more detail below with reference to the drawing, in which:

FIG. 1 is a perspective view of a machine for machine removal of dried I

skins stretched on tan from the front, I

FIG. 2 shows the same as in FIG. 1, anterior view, I

FIG. 3 is a view of the embodiment of FIG. 1, shown diagonally from below, I

FIG. 4 is a view of the embodiment of FIG. 1 is an oblique rear view,

FIG. 5 is a detail view of the embodiment of FIG. 1 showing the holding mechanism and I

knife and clamping arrangement, I

FIG. 6 is a detail view of the one shown in FIG. 1 showing its chin holder,

and in

FIG. 7 shows a tane with a skin which is then extended and retained. IN

25 - I

FIG. 1 shows a machine for removing dried skins 2 stretched on tanner 4, the skins I

2 is attached and extended to a tane 4 with a tan bag 6 and provided with a fixing means.

coating bag 8 which is pulled outside the skin 2 which extends beyond the skin 4 and which I

the lower part of the skin, the back skin 10, is further attached to the tan 4 by at least I

30 a staple 9, cf. FIG. 7. I

The machine for removing dried skins 2 comprises a height adjustable frame 20 I

with a bracket 22 on which bracket is placed a holding mechanism 24 with a support I

7 DK 175872 B1 surface 26 and a bracket 28 for receiving the tan foot 5. The holding mechanism 24 further comprises a mechanically actuatable pivotable top 30 which, from the one shown in FIG. 5, oriented in the longitudinal direction of the bracket, is a pivotable beyond a tine foot 5 disposed on the support surface 26, and further displaceable in vertical direction for clamping the tan foot 5 between the support surface 26 and the underside of the pivotable top 30.

The machine further comprises, as shown in FIG. 1, 2, 3 and in particular FIG. 6, a hook holder 32 mounted in a guide 34 slidably away from and in the direction of the holding mechanism 24 and in the longitudinal direction of the bracket by means of a piston 36 mounted on the underside of the guide 34. The hook holder comprises a skewer 38 cf. 4. The upside-down side 40 of the spear is planar and intended to support the tip end 11 of a tine 4 inserted in the machine, cf. 7. The spear 38 has a tip end 42 which is bluntly projected and is intended for insertion under the jaw portion 12 of the skin 15 2 of the tine 4 by displacing the spear by the piston 36. The underside 44 of the spear 38 has a curved course 44 further increasing the abutment surface between the skin 2 and the underside 44 of the skewer. The hanger holder 32 further comprises a co-operating printing plate 46, with the curved underside 44 of the skewer 38, the surface of which is congruent with the underside 44 of the skewer. The pressure plate is vertically displaceable by means of a pressure cylinder 48.

As shown in FIG. 1, 4, and 5, the machine also comprises a slidable support plate 50 for a cutter 52 and a clamping shutter 54. The cutter 52 and the clamping shutter 54 are mounted on a pivot shaft 56 which communicates at an arm 57 with a piston 58 whose displacement causes, respectively, a raising and lowering of the cutter 52 and the stapler 54 between an active position (cf. Fig. 5) and an inactive position (not shown), where the cutter 52 and the stapler 54 are pivoted away from the area where the tine is located. say when loaded into the machine. The movement of the slidable carrier plate is controlled by a guide 60, and the displacement of the carrier plate in the longitudinal direction of the bracket, and thus a tane inserted in the machine 30, takes place at a rodless piston 62 which is known in a known manner to the slidable carrier plate 50.

I DK 175872 B1 I

i 8 I

In the machine, as shown in FIG. 6 pushes a skin off in the form of an on

In the upper side 40 of the spear 38, displaceable plate 74, the front face 76 of which is shown in the embodiment shown

The shape is curved so that it corresponds essentially to the shape of the skin's appearance. Plate 74 H

You are at a pressure cylinder / piston 78 slidable longitudinally of the spear between a H

In a passive position located further away from the tip end 42, 84 of the spear than that away from H

At the spigot end 42, 84 facing side 80 of the pressure plate 42, to an active position where I

In the farthest portion 82 of the front end 76 of the spear 42 (84)

In gen) is located at least at the end 84 of the spear 38. The displacement of the plate I

is guided in the lateral direction in a cut groove 86 in the upper side 40 of the spear 38 and the plate H

In Fig. 10, the undercoat track 86 includes cooperating means (not shown). It undercut-

In these tracks, the sliding plate 74 is also held in abutment with the upper side 40 H

I of the spear 38 during the execution of the push-off procedure. Hereby it is obtained that an I

In skins released from the tan 4 and ready for deposition, you can quickly and effectively repel you

I by the skin pusher, by displacing the sliding plate 74, by activating H

In the pressure cylinder / piston 78, which simply pushes the skin at the nose end beyond I

At the tip of the spear 84.

I The machine functions as set out below, its function being provided for

I tomatised by means of a control unit connected to various sensors and signal I

I 20 sensors on the machine and which control unit (not shown) performs sequential control of I

machine functions as follows:

In a tane 4 on which is located a tan bag 6 and beyond this, a dried, extended

In and in this position, skin 2 is retained which is retained by a fixed cover bag 7 and I

In 25 staples 9, place with the tine foot 5 in the holding mechanism 24, with the tan foot 5

Positioned against the bar 28, and with the tip 11 of the tan resting on the planar surface

page 40 of the spear 38, on the hook holder 32. The hook holder 32 is then displaced by I

In the plunger 36 against the tane end 11, so that the spear 38, beginning with the tip I

42 of the hook holder 32 is inserted below the jaw portion 12 of the skin to a suitable depth, I

30 and then the pressure plate 46 at the pressure cylinder 48 is displaced against the underside 44 of the chin

In the holder 32, whereby a firm grip is obtained between the hook holder 32 and the skin 2,

at its jaw portion 12.

H

9 DK 175872 B1

The displaceable support plate 50 for the cutter 52 and clamping shutter 54, which at this point will be at the tip end of the tan 11, is now actuated so that the pressure cylinder 58 is actuated thereby pivoting down the shaft 56 on which cutter 52 and clamping shutter 54 are swung, thus the cutter 52 is in front of the edge of the ftx-5 coating bag 7, and the clamping shutter 54 is immediately behind the cutter 52. A rodless pressure piston 62 connected to the support plate 50 is then actuated thereby displacing the sliding carrier surface 50 parallel to the bracket 22 of the tan. longitudinally against the retaining mechanism 24, whereby the fixed cover bag 7 is cut and any staples 9 for retaining the skin 2 to the tine 4 placed at the lower part of the back skin 8 are removed by the clamping member 54. The displacement of the carrier plate 50 and the cut / the clamp shutter is continued until both clamp shutter 54 and cutter 52 are located behind the tine foot 5, whereby the pressure cylinder 58 is actuated to rotate cutter 52 and clamp shutter 54 to the passive position. The displaceable support plate 50 is then displaced back to the starting position and 15 in direct connection with this movement, a pivoting of the pivotable top 30 of the holding mechanism is pivoted inwardly by a pivot about a vertically oriented axis, followed by a displacement of the tan foot 5. the upper part 30, whereby the tan foot 5 is clamped between the support plate 26 and the underside of the pivotable upper 30. The tan is thus clamped in this position and the clearance 20 of the skin 2 from the tan 4 is subsequently effected by activating the piston 36 for a directional displacement of the hook holder 32, whereby there is a displacement of the hook holder 32 in the direction away from the holding mechanism 24 by a movement parallel to the bracket 22 and thus in the longitudinal direction of the tan.

In a particular embodiment of the machine according to the invention, both the guide 34 for the hanger holder 32 and the piston 36 for displacing the hanger holder are adapted in such a length that the aforementioned displacement of the hanger holder towards the retaining mechanism of the tine can be carried out over at least a full skin length. In this case, it would be convenient for the machine to be provided with rotating brushes 64 for brushing the upper and lower sides of the skin during the advance of the skin 2, which will result in machining of the leather, thus releasing the most likely tan bag. 6 within it, so that the tan bag 6 can subsequently be removed from the interior of the skin with the gripping means not shown.

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After removing the skin and feeding it, the retaining mechanism I is loosened

pivotable top 30 and pivoted back to the starting position, whereby the tan 4 becomes I

released and will fall into a sorting unit (not shown) in which the tan is fed to a collection unit.

sling magazine relevant to the tan size in question. IN

It is now released and brushed skins 2 will still be stuck in the chin holder 32 H

and to ensure identification of the skin, the chin holder 32 may comprise a talon wall

shine (72) inserting a talon for identification of the particular skin, prior to H

the skin is removed by deactivating the chin pressure plate 46, and activating

10 by pushing the plate 74 by displacing the displaceable I

plate 74, by activating the pressure cylinder / piston 78 which simply pushes the skin I

at the nose end beyond the tip of the spear 84. I

In case of sorting facilities are connected to the machine, activation of the ejector I

15 only when the hanger holder is moved to a position below which you are

a collection container (not shown) for the relevant relevant skin size cat- I

do you. IN

After laying the skin 2, the chin holder 32 is shifted to the starting position and mapped

20 The shine is ready for the laying of a new tane with leather etc. and the above procedure you will

thus repeating itself. IN

The bracket 22 is arranged on adjustable telescopic legs 66 and the working area I of the machine

is thus height adjustable. Furthermore, one telescopic leg 66 is provided with a pair of wheels I

25 68, which will facilitate moving / transporting the machine. The telescopic legs 66 also comprise I

still feet 70, so that the machine can be set up so that its working area also extends

can be placed in lots and lots of water. IN

The invention provides a machine for complete automation of take-off · I

It is recognized by the present invention that

the embodiment of the invention may take other embodiments than the one above

described and shown. IN

n DK 175872 B1

List of position numbers: 2. fur 4. tan 5 5. tan foot 6. tan bag 7. fixing pouch 8. lower part of back skin 9. staple 10 10. back skin 11. tan pointed end 12. skin garden portion 20. frame 22. bracket 15 24. holding mechanism 26. support surface of 24 28. restraint of 24 30. pivotable top 32. hooks 20 34. guide for hooks 32 36. piston for displacing hooks 32 38. skewers on hooks 32 40. plane top side of hooks / skewers 32 , 38 42. tip of hook holder 32 25 44. curved underside of hook holder 32 46. pressure plate for hook holder 32 48. pressure cylinder / bracket arrangement for pressure plate 46 50. slidable support plate for cutter / clamp shaker 52. cutter 30 54. clamp shaft 56. swivel shaft for cutter 52 and clamping shaft 54 57th arm of swivel shaft 56 connected to pressure cylinder 58 58. thrust cylinder / piston for swivel shaft

DK 175872 B1 I

60. Guide for removable carrier plate 50 I

62. rodless pressure piston for displacement of 50 along 60

64. rotating brushes for brushing the top and bottom of the skin H

66. Telescopic leg on console I

5 68. wheels on one telescopic leg

70. Still feet on the telescopic leg I

72. Talon Machine I

74. slidable plate I

76th front of 74 I

10 78. mechanical means for displacement of 74 (pressure cylinder / piston) I

80. the side (80) of the spigot (42) facing away from the spigot of the pressure plate pressure plate I

the (42) I

82. The furthest part of the front (76) relative to the tip end of the spear 84 I

84. spear end I

15 86. undercut groove in flat upper side of chin holder / spear I

Claims (13)

A method for machine removal of dried skins (2) stretched on tans (4), wherein the skins (2) are secured and extended on a tane (4) provided with a tan bag (6) and provided with a fixed coating bag. (7) pulled outside the skin (2) extending on the tan (4), the lower part of the back skin (8) being further attached to the tan with at least one staple (9), characterized in that the following successive operations are carried out. ; - affixing the tan (4) with the skin (2) to a support surface (26) with the tan foot (5) of the tan foot placed abutment (28) in a holding mechanism (24) with pivotable top (30) - displacement of a hook holder (32) located at the tip end of the tine (11) in its axial extension, for inserting a spear (38) on the hook holder (32) under the jaw / chin portion of the skin (12), and subsequently activating a thrust plate 15 (46) on the hanger holder (32) for retaining the skin (2) at the skin portion (12) of the skin, - positioning of mechanical means (50, 52) for cutting the fixed cover bag, and any mechanical means (54) for removing staples (9) ), 20. cutting the fix-coating bag (7), and removing any. staples (9), by displacing the means (50, 52) for cutting the fixed coating bag (7) and the means (50, 54) for removing the staples (9), along the tine (4) from its tip (11) ) to the rear of the tan foot (5), - removing the fix-coating bag (7) and placing it in a container relevant for the relevant 25 fix-bag size. - inserting the pivotable top (30) of the retaining mechanism (24) for the tuck (4) and clamping the tuck (4) for retaining it, sandwiched between the support surface (26) and the underside of the top (30), - freeing the skin (2) from the tine (4) by displacing the hook holder (32) axially longitudinally of the tan, away from the holding mechanism (24), - returning the means (50, 52, 54) for cutting the fixed coating bag (7) and removing staples (9) to the starting position, DK 175872 B1 I - optionally. releasing the taper (4) from the retaining mechanism (24) upon returning the upper H portion (30) of the retaining mechanism (24) for the tan to the output H position of the retaining mechanism. H Method according to claim 1, characterized in that the following operations are carried out which are successively performed; H - displacement of the chin holder (32) at least one skin length, In brushing the top and bottom of the skin with rotating brushes (64) during H advance of the skin (2), H 10. release of the tane (4) in the holding mechanism (24 ), so that the tan (4) is guided down into a collection magazine relevant to its size, H - removal of the tan bag (6) from the interior of the skin, and depositing the same in a collection container I relevant to the size of the tan bag I - insertion of a talon in the skin (2) with a talon machine (72), preferably in the view of the skin, H - repelling the skin from the chin holder by a mechanically actuated nose pusher, and simultaneously depositing the now released skin, in a relevant collection container . H Machine for carrying out the method according to claim 1, characterized in that it comprises H; H - a bracket (22) mounted on a chassis (29), on which bracket (22) is provided a holding mechanism (24) comprising a support pad (24) for supporting a tan foot (5) and at its end a stop (28) for a tine foot (5) on a tine (4) inserted in the machine with an elongated skin (2) held thereon (1), which is mechanically pivotable over the support surface (24) (and the tane foot 5). clamping part I (30) which is actuatable for pressing against the side of the tan foot (5) for holding the tan, I - a mechanically activatable, and in the longitudinal direction of the bracket on a guide (34), slidably mounted garden holder (32 ) comprising a flat-like spear (38) for insertion I under the skin portion of the skin (12), between the skin (2) and the tine (4), and a H-cooperating pressure plate (46) for clamping the skin portion of the skin (12) at the end of the skin. pointed end (11), H DK 175872 B1 - a longitudinal direction in the bracket (22) on a guide extending parallel to the tan (4), slidably mounted support plate ( 50) comprising a mechanically pivotally mounted shaft (56) with a bag cutter (52), which shaft (56) is rotatable by a push-pull cylinder (58) between a passive position and an active position where the cutting ( 52) engages the bag material, and wherein the carrier plate (50) is so stored and slidable between the extremities that the cutter (52) extends over the entire length of the skin to a position behind the tan foot (5), - a piston (36) for displacing the chin holder (32) so that the skin (2) is detached from the tine (4). 10 Machine according to claim 3, characterized in that the shaft (56) of the bag cutter (52) further comprises a clamping shutter (54) located in the immediate vicinity of and behind the bag cutter (52), which clamping shutter (54) together with the cutter (52). by placing it in its active position, it is placed in abutment with the top of the skin. Machine according to claim 3 or 4, characterized in that the guide (34) on which the hanger holder (32) is mounted and the piston (36) for displacing the hanger holder (32) have an operative length which allows for a displacement of the hanger holder (32). at least in a full skin length. 20 Machine according to any one of claims 3-5, characterized in that on the upper side (40) of the spear (38) there is a plate (74) which can be displaced longitudinally, the front side (76) of which is by mechanical means ( 78) is slidable between a passive position located further away from the tip end (42) of the spear 25 than the side (80) of the spike 25 (42) facing the pressure plate (42), to an active position where it extends from the spike end (42) The farthest portion (82) of the front face (76) is located at least at the end (84) of the spear (38). Machine according to any one of claims 3-6 for carrying out the method 30 according to claim 2, characterized in that it comprises a plurality of motor-driven rotatable brushes (64) mounted on the bracket (64), thus positioned and mounted respectively above and under the skin (2) that they perform a machining of the skin (2) during its advance during extraction from the tine (4), by displacing the chin holder (32). I DK 175872 B1 I I 16 I Machine according to any one of claims 5-7, characterized in that it comprises an equipment mechanism for equipping a pre-fixed, leather and tan bag-free tan for a collection magazine for the relevant tan size. I I 5 Machine according to any one of claims 5-8, characterized in that the machine further comprises a talon machine for inserting a talon in the face of the skin. IN Machine according to any one of claims 5-9, characterized in that it comprises gripping means for removing the tan bag from the interior of the skin and depositing the same in a collection container relevant to the size of the tan bag. Machine according to any one of claims 5-10, characterized in that it comprises guide means for the chin holder for installing a mink skin for depositing the skin in a collection container relevant for that skin size. IN Machine according to any one of claims 5-11, characterized in that the II spear (38) of the hook holder (32) has a semicircular cross-section such that the downwardly facing side (44) of the spear (38) is curved, and the pressure plate (46) cooperating with the spear (38) has an aperture on the facing side of the spear, which aperture II has a congruent configuration with the downward facing side (44). Machine according to claim 12, characterized in that the side (44) of the spear (38) facing the pressure plate (46) and / or the side of the piston (38) facing the spear (38) has a profiling and / or corrugation. IN