DK172960B1 - Process and apparatus for mounting and stretching the pelts of fur-bearing animals on mounting poles - Google Patents

Description

in DK 172960 B1

The present invention relates to a method for tightening and mounting fur animals, e.g. mink skins, on dryers, ie. a flat cane - preferably of wood, used for drying the fur animal skin in a tightened state, and of the kind mentioned in the preamble of claim 1.

5

After pelting and after scraping, fur animal skins, eg mink skins, must be mounted on flat, tapered sticks in a tightened state for intensive drying in fur drying prior to tanning.

! 0 The work of tightening and mounting fur skins on dry tans has previously required a large and cumbersome manual labor effort, which posed a very significant financial burden for the individual fur animal breeder. From, for example, DK-B-156 515 and DK-B-160 567, apparatus for use in tightening and mounting fur skins on tans are known, but these known devices are subject to some disadvantages, which are particularly related to the technique used in to grasp the fur skin for tightening this on the tan.

There is a large difference in size between the fur animals' skins, for example the skins of a mink bitch are considerably smaller and shorter than the skins of an adult male mink. In order to be able to use common gripper means for fur animals of varying scope and length, known apparatus of the present type operate with a gripper type which is arranged to clamp the tail of the fur animal skin, the gripper means and the holding means for the tine being mutually arranged so that that the fur animal skin, after application to the tan, can be tightened only by pulling the tail of the fur animal skin.

25

This results in uneven tightening of the back of the fur, and often this implies that the fur on the side of the fur, ie. on the opposite flat side of the tan, cannot "reach together" for proper placement and fixation of the fur animal skin at the tracheal hindquarters. It should be mentioned that the fur animal skin is fixed to the tan in the tightened state by means of staples driven through edges of the skin and into the tan by means of preferably compressed air driven stapler, projecting parts of the skin, e.g. tail and hind legs, subsequently also fixed on the tan with staples.

2 DK 172960 B1

The invention has for its object to provide a method for tightening and mounting fur animals, e.g. mink skins, on tan, and which, in a simple manner and with the aid of simple apparatus technical measures, make it possible to avoid the common disadvantages of the known tanning methods and tanning appliances, respectively.

5

The method according to the invention is characterized in that several sets of clamping means are used which are adjustable across the longitudinal direction of the tan at both flat sides and preferably parallel to the flat side of the tan, and that outer sets of clamping means at respective sides of the tan are controlled laterally in place. relative to the current 10 width of the tan. This can result in a very significant simplification of the work of tightening and fitting fur skins, especially mink skins, tane. In addition, it is important that the method allows the fur animal skin to be properly tightened and fitted with outer staples located independently of the size of the fur or the width of the tine, respectively, approximately uniformly. 2 - 3 mm from opposite side edges of the tan.

15

In the method of the invention, mechanical and / or electronic positioning means may conveniently be used to check the actual location of the free edges of the fur animal skin at the flat sides and / or side edges of the tan.

The invention also relates to an apparatus for tightening and mounting fur animals, e.g. minkskin, on tane, ie. a flat conical cane - preferably of wood, which comprises a tine holder for holding a widening of the tan, clamping means at least one flat side of the tan for fixing free edges of the fur animal skin, shear means for tightening the fur animal skin on the tan by effecting a relative shear wall. between the tine holder and clamping means, as well as the staple means for fixing the fur animal skin to the tan in a tightened state by means of staples, characterized in that the apparatus comprises several sets of said clamping means at both flat sides of the tan and further comprises control means which for adjusting the outermost sets of said clamping means relative to the actual width of the tan are adjustable across the longitudinal direction of the tan 30 and preferably parallel to the tan's face.

3 DK 172960 B1

Conveniently, the apparatus according to the invention comprises mechanical and / or electronic positioning means for checking the actual location of the free edges of the fur animal skin at the flat sides and / or side edges of the tan.

With particular advantage, the apparatus according to the invention may be designed such that at each side of the tine holder there are three stapler units and three sets of clamping means, one of which a middle stapler and a middle set of clamping means are fixed to the center of the width of the tan, while the outer staples and clamping means may be displaced in the lateral direction guided by the actual width of the tan, with outer guide rollers adapted to be pressed against the narrow side edges of the tan before being fixed in the tan holder.

As previously mentioned, the clamping means may preferably be assembled with the staple assemblies, the lower parts of which constitute movable parts of the clamping members, while the stationary and predominantly stationary parts of sets of clamping members are constituted by upper finger portions of mutually converging and thus inclined rails. between them forms a cavity with the shape of an upwardly pointed "roof space" through which a predominantly vertical tane can extend.

20 By placing the tan holder in the middle of the inclined rails, ie. in the middle of said "roof space", the tan holder can be displaced upwards to a convenient starting position, so that the width of the tan is easier to pass down through the "roof space".

Even more conveniently, the apparatus may be designed such that a preferably middle, stationary oblique at the rear of the apparatus - i.e. opposite to the operator - is provided with a smooth guide plate extending on both sides past the side slanting rails, which serves to guide the tail of the fur coat backwards as the wide end of a loose fur skin is passed through the transverse slot to the "roof compartment" and placed in the tan holder.

30

The method and apparatus according to the invention, respectively, can be used for tightening and mounting fur skins with a length of approx. 50 - 95 cm on tapered tans with a 4 DK 172960 B1 width of approx. 7 - 12 cm. As mentioned, outer staples are placed approx. 2 - 3 mm from opposite side edges of the tan; optionally, the middle stapler may be arranged to punch two staples at a time.

The invention is explained in the following with reference to the drawing, in which: -

FIG. 1 shows a view - partly in section - of an apparatus for practicing or illustrating the method according to the invention, and FIG. 2 shows a further view - partly in section - of an apparatus for carrying out and illustrating, respectively, the method according to the invention.

The FIG. 1 and 2 are mounted freely on a floor rack not shown, which may comprise a cabinet in which pneumatic controls, etc. can be placed. The tan apparatus can be adjusted on the floor stand in terms of both height and inclination. Optionally, the tanning device itself may be tilted slightly backwards, so that the operator, if seated in front of the device, can more easily see the rear row of stapler 28 and space if necessary to arrange the paws properly - more on this below.

Underneath the tan apparatus is seen a larger pneumatic cylinder 8 used for displacing a tan 14, which comprises a tan holder 10 (Fig. 1) with a clamping arm 16 operated by a smaller pneumatic cylinder 12 (see also Fig. 2). . The tanning apparatus 2 comprises six sets of clamping jaws 18, 20, namely three sets on each side of the jaw 14, the middle set of clamping jaws 18 and 20 on each side of the jaw 14 being stationary in the lateral direction. The other 25 sets of clamping jaws 18, 20 may be laterally provided on guide rods 19, 21, 23 by means of small pneumatic cylinders (not shown), the lateral adjustment of the outer sets of clamping jaws 18, 20 being guided by a guide roller 22 which from each side is pressed against opposite side edges of the tuck 14.

The clamping trays 18 are constituted by upper end portions of inclined rods 24 which form between themselves an upwardly pointed cavity 26 ("tagnim"), through which the tane 14 is guided for fixation in the tine holder 10, which in turn can be displaced upwards into the "tagnim" . The clamping trays 5 comprise lower portions of the stapler 28 which are laterally mechanically forced to follow the slopes 24 and which include vertical staple magazines 30 and horizontal actuation cylinders 32 with pistons 34.

5 The embodiment of FIG. 1 of the clamping trays 18, 20 corresponds to "loading position", where as shown, the tane holder 10 is either located immediately below the "roof space" or possibly moved completely up into the "roof space" itself. The front sloping vanes 24, the outermost of which are displaceable on the guide rods 19, are permanently positioned so that the clamping jaws 18 engage the path of the tane 14. In contrast, the rear oblique vanes 24 (on the guide rods 10 21) are displaced rearwardly to make room for the tane 14 which is provided with a loosely attached fur animal skin with the back of the skin facing backwards, and which must also have extra space for the tail of the skin to fall freely downwards along the back of the rear slopes 24. Also to allow additional space at the back the rear staple assemblies 28 of the guide rods 23 are displaced further to the rear of the web of the tane 14; while the 15 front staple assemblies 28 of the guide rods 19 are only slightly displaced forwardly relative to the tuck 14 - at this side the edge of the belly skin must fit between the clamping trays 18, 20.

When the wide end of the tan 14 is loosely supported on the open tan holder 10, the guide rollers 22 are displaced inwardly and pressed against opposite side edges of the tan 14, thereby guiding it in the correct center position, then the cylinder 12 of the tan holder 10 is activated immediately. inclined vane 24 forward toward the tine 14 before being moved downwardly by the cylinder 8. When mechanical and / or electronic sensing means establish that the lower free edge of the fur animal skin is correctly positioned 25 outside the clamping jaws 18. The operator optionally holds the poets in place and activates the clamping jaws 18, 20.

Then, the cylinder 8 is reactivated again and displaces the tine 14 upwardly to eject the furskin, after which the stapler 28 is activated (Fig. 2). Then the clamping trays 18, 20 are released and the tan parts return to the starting position, etc.

6 DK 172960 B1

The method can be listed in the following points: 1. A tan with loosely attached fur animal skins and with the tail facing away from the operator is introduced with a sloping downwards between clamping trays and supported on an open tan holder.

2. Guide rollers and clamping trays are laterally brought together around the tane, so that combined clamping trays and stapler are located approx. 2 mm from opposite side edges of tane.

10 3. The tine holder is activated and the rear sloping guide is directed inward towards the tan.

4. The tan is shifted downwards until free edges of fur skins are in the correct position between clamping trays.

15 5. Paws are placed correctly and clamping trays are activated around free skin edges on both sides of the tan.

6. The tan is displaced upward to tighten the fur of the fur animal.

20 7. Stapler units are activated and the skin is fixed in a tightened state on the tan.

8. Moving parts are moved to the starting position and the tooth holder is opened.

25

Claims (8)

1. Method for tightening and fitting fur skins, e.g. mink skins, on tane (14), ie. a flat tapered stick - preferably of wood, wherein a fur animal fur is loosely attached to the tan (14) and a broadening thereof is fixed in a tan carrier (10), while free edges of the fur animal fur are fixed by clamping means (18, 20) by at least one flat side of the tan (14), wherein the fur animal skin is tightened on the tan (14) by effecting a relative shear movement between the tan carrier (10) and the clamping means (18, 20) before the fur animal skin is fixed to the tan in staples using staples (28) which are preferably assembled 10 with portions of the clamping means (20), characterized in that multiple sets of clamping means (18, 20) are used which are adjustable at both flat sides of the tine (14). transversely of the longitudinal direction of the tan and preferably parallel to the flat side of the tan, and that the outermost set of clamping means (18, 20) at respective sides of the tan (14) is guided laterally in place relative to the actual width of the tan (14). 15 Method according to claim 1, characterized in that mechanical and / or electronic positioning means are used to check the actual location of the free edges of the fur animal skin at the flat sides and / or side edges. 3. Apparatus for tightening and fitting fur skins, e.g. mink skins, on tane (14), ie. a flat conical cane - preferably of wood, comprising an tine holder (10) for holding a widening of the tan (14), clamping means (18, 20) at at least one flat side of the tan (14) for fixing free edges of the fur animal skin, shear means (8) for tightening the fur animal skin on the tan (14) by effecting a relative shear movement between the tan holder (10) and clamping means (18, 20), and staple means for fixing the fur animal skin to the tan (14) in a tightened state by by means of staples, said staples being constituted by stapling assemblies (28) which are preferably assembled with parts of the clamping means (20), characterized in that the apparatus comprises several sets of said clamping means (18, 20) at both flat sides of the tan ( 14) 3o and further comprising control means (22) which, for adjusting the outer set of said clamping means (18, 20) with respect to the current width of the tan (14), are adjustable across the longitudinal direction and preferably of the tan. ice parallel to the flat side of the tan. 8 DK 172960 B1 Apparatus according to claim 3, characterized in that it comprises mechanical and / or electronic positioning means for checking the actual location of the free edges of the fur animal skin at the flat sides and / or side edges. Apparatus according to claim 3, characterized in that at each side of the tine holder (10) there are preferably three stapling units (28) and three sets of clamping means (18, 20), of which a middle stapling assembly (28) and a middle set of clamping means ( 18, 20) are fixedly aligned to the center of the width of the tan, while the outer staple assemblies (28) and clamping means (18, 20) can be offset in the lateral direction by the current width of the tan (14), with outer guide rollers (22) is arranged to press against the narrow side edges of the tan (22) before being fixed in the tan holder (10). Apparatus according to claim 3, characterized in that the clamping means (20) are joined to the staple assemblies (28), the lower parts of which comprise movable parts of the clamping means (20), while stationary and predominantly stationary parts of the set of clamping means are constituted by upper finger portions (18) of mutually convergent and so inclined levers (24) to form between them a cavity having the shape of an upwardly pointed "" roof space "through which a predominantly vertical tane (14) may extend. Apparatus according to claims 3 and 6, characterized in that the tane holder (10) is located in the middle of the inclined rails (24), ie. in the middle below said "roof space" so that the tan holder (10) can be displaced upwards to a convenient starting position, where the wide end of the tan (14) is easy to place down through the "roof space". 7 DK 172960 B1 Apparatus according to claims 3 and 6, characterized in that a preferably middle, stationary sloping vane (24) at the rear of the apparatus - i.e. opposite to the operator - is provided with a smooth guide plate extending on both sides past the lateral slanting vanes (24), which serves to guide the tail of the fur animal backward as the width of a teal (14) with loose fur skin passes through the transverse slot to the "roof compartment" and placed in the rack (10). in DK 172960 B1 ί-% pQ ffc: li I ft II \ I !; :, ^ - 5 »bo jtr- ΗΕΪ | T - N t V fl —- i · Zi" i * / \ 2 .-> · .-: S. ^ f8 iij Λ «<^ α \ γ ^ - ^. / o ^ T ~ L ^ W ^ 2 / FIG.1 4 jN;. (-y | \ Hi i! \ 8 DK 172960 B1 "v / yr ·] έ = ί 'S3- | tf ~ ψ φ .___ 23 J9 * VL · i ^ 23 L— «1 r - 5; - -. ~ Ή-ηηιϊ. Vr27 _; V3 //? // ^ _ /“? F ^ FIG.2