DK175405B1 - Method is for fitting pelt animal skin, e.g. mink skin, on stretching support made of smooth conical wood and involves removal of support bag from magazine, removal of support from bag and placing it on support surface - Google Patents

Abstract

The method is for fitting a pelt animal skin, e.g. a mink skin, on a stretching support (12,13,14) made of smooth conical wood and involves the removal of a support bag (5) from a magazine (4), removal of the support from the bag and placing it on the support surface. An insertion component is introduced into the bag for opening, widening and fixing it. It is also used to support the stretching support into the bag. The support with the bag is moved onto the support surface to a position in front of a feed component which is then activated to move them forward to the skin application position. The operator monitors the skin application, introducing the skin rear edge parts into clamp holders. The clamp holders are then activated to rotate the stretching support with fixed skin to a lower stretching position. The stretching support is moved forwards by a stretching component, which presses against the rearmost wide end of the stretching support. The edge parts of the skin are fixed to stretching support by adhesive clamps.

Description

DK 175405 B1 I

The present invention relates to a method for the automatic assembly of fur I

animal skins, e.g. minkskin, on tane, ie. a flat cane - preferably of wood, and of it in the interior

the line of claim 1 specified species I

5 Or fur and scraping should be fur animal skins, e.g. minkskin, mounted on flat, cow- I

niches in a tightened state for intensive drying in fur drying prior to tanning. IN

Work on the outflow and mounting of mink skins on drying plants has previously required I

a large and cumbersome manual labor effort that constituted a considerable financial burden

loading for individual fur breeders. IN

10 I

In size, there is quite a big difference between mink skins, for example the skins from one

The mink bitch is considerably smaller and shorter than the skin of an adult male mink. In practice I

Thus, for example, in the outflow and mounting of mink skins on tans, I

I to the current skin size to obtain proper outflow of the back of the mink skin

In 15 it. Otherwise, the skin on the tug side, ie. on the opposite flat side of the tan, can not "reach together" for proper placement and fixation of the fur of the fur at the hind leg portions. It should be mentioned that the mink skin is fixed in the tightened state to the tan by means of staples driven through edges of the skin and into the tan by means of preferably compressed air driven stapler, projecting portions of the skin, e.g. tail and hind legs, then fixed on the tan with staples.

Prior to mounting fur skins on wooden tans, the tan is provided with a special tan bag made of absorbent paper, which on the inside has a plastic coating that is usually perforated. The tan bag has a central angular incision at the tip end, so that suspension of tane with mounted skin and insertion of air distribution hose into the "mouth" of the skin is not disturbed. Tote bags are available in several sizes adapted to the varying sizes of the taneme.

DK 172969 B1 discloses a method and apparatus for outflowing and mounting I of fur animals, e.g. minkskin on tane, ie a flat conical cane - preferably of wood, in which a fur animal fur is loosely placed on the tan and a broadening thereof is fixed in a tan holder, while free edges of the fur animal fur are fixed by clamping means, and the fur animal fur is discharged onto the tan a relative displacement movement between the tan holder and clamping means before the fur animal skin in the tense state is fixed to the tan by means of staples, using several sets of laterally adjustable clamping means at both flat sides of the tan, the outermost set of DK B1H clamping means at respective sides of the tan are laterally guided in place relative to the actual width of the tan and where staple assemblies are used which are preferably co-built with portions of the clamping means.

In the light of the foregoing, it is an object of the invention to provide a method for mounting fur animals, e.g. mink skins, on tans, and which, in a simple way and with the help of simple apparatus technical measures, make it possible to further automate the very demanding and monotonous manual work of applying tan bag to tans and subsequently mount mink skins in a tightened state on the tan.

In the 1 ° H The method according to the invention is characterized by the following further steps: H - removing a tan bag from the tan bag and placing the tan bag on an H support surface, Η 15 removing the tan from the tan magazine and placing the tan on said support. - opening a widening of the tan bag and fixing it, H - activating the insertion means for inserting the tan into the bag, - lateral displacement of tan with tan bag on the support surface to position 20 in front of the feeding means, - activating the forward displacement means of tane with tan bag to a skin application position, where operator monitors skin application and introduces rear edge portions of the skin into clamp holders at the respective flat sides and activates said clamp holders, in rotation of tane with fixed skin to preferably underlying position how tane n is displaced forward by means of a tensioning means pressed against the base, broadening the tan, before attaching said edge portions of the skin to the tan by means of staples, I - executing the tan by five-displacement thereto with the tensioned and mounted 30 and possibly concomitant tightening and fastening of tail of skin to the tan.

DK 175405 B1 I

In this way, it becomes possible to automate the work of applying tan bag to tan and subsequently to install mink skin in a tightened state on the tan.

The invention also relates to an apparatus for bmg in the practice of the method according to the invention

5 the finding for fitting fur skins, e.g. minkskin, on tane, ie. a flat taper I

cane - preferably of wood, comprising apparatus I

- a tane holder for holding a widening of the tane,

- clamping means for fixing free edges of the fur animal skin,

means for tightening the fur of the fur on the tan by forming a relative I

10 shear movement between tine holder and clamping means, I

- as well as staples for fastening the fur animal skin to the tan by means of staples, the apparatus of which further comprises I - a tan magazine with space for a plurality of tans, I - a first arranged above the tan magazine lifting device with gripping means adapted to remove tines individually from the tan magazine and place them in a determined position on a support surface, namely with the wide end of the tan located in front of a feeder which projects through a longitudinal slot in In the support surface, and operated by a displacement generator, e.g. a pressurized air cylinder, I - a tan bag containing space for a plurality of tan bags, an over bag bag arranged another lifting device with gripping means adapted to take tan bags individually from the tan bag and place them in a tan bag. particular position on said support surface, namely in line with and in front of said tane, so that the wide end of the tan bag is positioned in front of the tip end of the tane, I suction means adapted to fix a lower side portion of the tide of the tane. In the bag so that the wide end thereof can be held open by said second lifting device, while said feeding means is actuated for inserting the tan I into the tan bag, I 30 - a further feeding means which projects through a longitudinal slot in the supporting surface. , and which is operated by a displacement generator, e.g. a pressure I air cylinder, which further feeding means is arranged - after the tan I ----- - —— I DK 175405 B1 with the tan bag by said second lifting device has been shot laterally for * H to a position next to it and, in parallel with the former, certain positions on the support surface - to move the tan forward to a preferably manually operated skin application position.

H Hereby an apparatus is obtained which in a simple way makes it possible to further automate H the work of applying tan bag to tans and subsequently to install mink skin in a stiffened H condition on the tan.

H 10 Conveniently, the apparatus according to the invention is designed such that the tanning magazine is designed as a carriage with a height-adjustable magazine bottom with space for four stacks H of preferably similar tans, e.g. 4 x 80 pcs. tanner for gloves. This results in the fact that the tan magazine can be replaced very quickly by a new filled tan magazine with 320 pcs. tanning gloves or a tan magazine with a similar number of smaller tufts for bitches. Further, apparatus according to the invention may advantageously be designed to include raising / lowering means, e.g. in the form of threaded spindles with protruding supporting pins, which engage with the height-shiftable magazine bottom of the tan magazine, and which are operated via a chain drive by a common electric motor with associated frequency converter.

Preferably, the apparatus according to the invention is designed such that the tan bag is positioned in front of the tan tray and is slidably suspended on support rails extending along opposite sides of both the tan bag and tan tray, and the tan bag tray is designed to accommodate four stacks of bags. namely, two stacks of 1 tan bags for tan for leather and two stacks of tan bags for tan for gloves.

In order to be able to quickly and easily transfer the bag magazine to a filling position at the outer end of the apparatus, this may advantageously be designed such that the tan bag magazine is provided with a magnetic coupling at the end facing the tan bag so that the tan bag magazine follows. with the tan magazine outward as it is driven out from the apparatus. eg. for replacement or refilling.

DK 175405 B1 I

Conveniently, the apparatus according to the invention is designed so that both lifting devices

These include a traverse extending centrally over the tan bag and

the tanning magazines, and carrying a sliding cart with one or more vertical, pneumatic

Lifting cylinders for a suction pad with a number of active suction cups.

The apparatus according to the invention is preferably designed so that the lifting device which I

serves the tan magazine, is equipped with a suction sole with a powerful, central suction cup and I

preferably a smaller suction cup off the tip of the tan; and preferably, the lifting device serving the tan bag magazine is provided with a suction sole having a plurality of smaller suction cups distributed along the suction sole.

In addition, the apparatus according to the invention is suitably designed such that in said skin application position it is arranged with an upper position with a support surface for a mink skin which is manually fixed by the operator, while said further feeding means advances the tine with bag forward. and into the mink skin, after which said free edge portions of the mink skin are inserted in place in the holding means, and at a lower position, wherein said outflow, by said relative movement of between the tine holder and clamp holder, is effected by activating said tensioning means before fixing the mink skin by activating said staple means. Preferably, said I is 20. staple means mounted height-displaceable relative to a carriage displaceable in the transverse direction, so that there is room for rotation of the leather holder between said upper and lower positions and it is partly possible to attach the tail of the mink skin while this together with the tan is carried out by the apparatus. by, for example, by activating an embodiment roller e.g. in the form of an air tire, against which the tan is held compressed by a passive fourth actuated air tire, ie. that the frictional influence on the mink skin is minimized by the minimum surface pressure between said air rubber wheels.

BRIEF DESCRIPTION OF THE DRAWINGS In the invention, the following is explained in more detail in connection with the drawing, in which: 1 shows a plan view - partly in section - of an embodiment of a part of a tanning apparatus according to the invention - seen from above, FIG. 2 shows a view - partly in section - of the one shown in FIG. In partial tan apparatus according to the invention - side view, fig. 3 shows a view - partly in section - of the one shown in FIG. 2, but a further 5 provided with a skin holder and an underlying ejector combined with a stapler - viewed from the side; FIG. 4 shows a view - partly in section - of the one shown in FIG. 3 is an end view of the tan apparatus according to the invention, FIG. 5 shows a sectional view through an embodiment of a tanning magazine for the tanning apparatus H according to the invention; FIG. Fig. 6 is a sectional view through an embodiment of a tan appliance bag magazine according to the invention; 7 is a view of a carriage with a pupilable tanner magazine for tanner gloves for use with the tanning apparatus of the invention; FIG. Figure 8 is a view of a partially filled bag magazine with stacks of tan bags for both female and male skins for use with the tan apparatus of the invention; 9 is a view of an embodiment of a lifting device with suction cups for retrieving and fixing tan bags by the tan apparatus according to the invention; FIG. Figure 10 shows a view of an embodiment of a lifting device with suction cup for retrieving tines from the tan magazine by the tan apparatus according to the invention; 11 is a view of an embodiment of a combined skin holder, tensioning device and stapler assembly of the tanning apparatus according to the invention,

DK 175405 B1 I

FIG. 12 shows a view of one embodiment of a lower combined exhaust stream

containment and staple assembly of the tan apparatus according to the invention,

FIG. Fig. 13 shows an image to illustrate the transfer of a bag with a bag to the top I

5 skin holder by the tan apparatus according to the invention, I

FIG. 14 shows an image for illustrating the placement of a tan with a mink skin in an I

holding device in its upper position, before holding device and tane with I

mink skin is swung and a horizontal axis to a lower position for tightening and I

10 adhering the mink skin to a broadening of the tan, I

FIG. 15 shows an image for illustration of simultaneous adhesion of the mink skin to both I

flat sides of the tan by means of cooperating staple assemblies. 16 is a side view of the cooperating staple assemblies comprising an arrangement for automatically inserting and advancing new staples; 17 is a side view of a magazine for automatically feeding staples; In FIG. 18 is a view of activation cylinders for insertion of staple rods; FIG. 19 shows a perspective side view of the cooperating staple assemblies which are adapted for lateral displacement; FIG. Fig. 20 shows a conveyor belt for performing pre-assembled minkskin tines. Fig. 21 shows an end view of the pivotal holding devices and the laterally displaceable staple assemblies; 22 shows another side view of holding arrangement and staple assemblies as well as in an air cylinder for up and down swinging of a top table top for support I of the tan, cf. also fig. 14th

DK 175405 B1 H The one shown in FIG. The tan apparatus 2 shown in · 6 comprises a tan magazine 4 with space for four stacks of identical tans 5 (eg 4 x 80 pcs tan for male skin) on a height-shiftable magazine H bottom 6 which, when the tan magazine 4 is carried on space in the tan apparatus 2, height 5 can be displaced by means of bearings 8 on four threaded spindles 10 (Fig. 7) which engage under the mag H base 6 and which are driven via an endless chain drive by a common electric motor with auxiliary H running frequency converter so that the tray bottom 6 - while removing tans from the H tanning magazine 4, ie. in the operating situation - can be moved upwards quite slowly and subsequently can be moved downwards again relatively quickly when the tan magazine 4 is empty and must be refilled Η 10.

H In front of the tan magazine 4, in the operating situation, is a bag magazine 12 with room for H four stacks of tan bags, namely two stacks with small tan bags 13 for bitches tan and two stacks with larger tan bags 14 for tan bags for men (Fig. 8). The bag 12, which H 15 has much less height than the tan tray 4, because the tan bags 13 and 14 are of very small thickness, are slidably suspended in support rails 16 at opposite sides of the tachograph 2, so that the bag magazine 12 when the tan tray 4 is extended of the tan apparatus 2 may be displaced to the front end of the tan apparatus 2 to facilitate refilling H of the bag magazine 12. This may be provided at the end facing the tan magazine 4 with a magnetic coupling (not shown) so that the bag magazine 12 automatically be coupled to the tan magazine 4 and accompany it towards the front of the tan 2.

In Tanma magazine 4 and bag magazine 12 are provided with lifting devices 18 and 20, both of which are built on a traverse extending centrally over the respective magazines, and carrying a sliding carriage 22 with two vertical, pneumatic lifting cycles. In liner 24 with a suction sole 26 having a plurality of active suction cups 28 (Figures 9 and 10).

At the lifting device 18 (Figs. 1, 5 and 10) for the tan magazine 4, the suction sole is provided with a larger soft lip 30 suction cup 30 adapted to be sucked into a central part of a tan 5, while the suction sole at opposite end has a smaller suction cup adapted to cooperate with the tip end of the tane 5.

DK 175405 B1 I

At the lifting device 20 (Figs. 1,4, 6 and 9) for the bag magazine 12, the suction sole is provided I

having a number of smaller suction cups evenly distributed along the suction sole,

Cleaning and transporting the tan bags only requires limited suction. IN

It should be noted that in FIG. 1 could appear as if two lifting devices exist

18 and 20 for tan magazine 4 and bag magazine 12, respectively; but it is, however, spoken of

both positions of the respective lifting devices 18 and 20 are shown in FIG. 1, I

10, where the lifting device 18 for the tan magazine 4 is lower left in FIG. 1 is shown in the I

the former determines the position in which a tane is delivered in front of the former feed-in

means which subsequently provides for moving the tan forward for its introduction into the

the open tan bag. Similarly, the lifting device 20 for the bag magazine 12 is at the top of I

left in FIG. 1 shown in said outermost position, in which the tan with the bag is delivered

15 for subsequent displacement forward by means of said further advance I

means for the skin application position 22 (Figures 3,4, 11 and 12). IN

The skin application position 22 comprises an upper receiving station 24, where the mink skin I is manually fixed by the operator on a support surface 26 (Fig. 11), while the additional feeding means provides for forwarding the tan with the bag loaded, so that the tan I is simultaneously introduced into the mink skin (Fig. 13). The operator makes sure to place the top free edge parts of the mink skin in the upper and lower clamp holders which are then actuated before the skin holder with the mink skin is pivoted to a lower tensioning station 28, where a pneumatic piston is actuated and pressed against the wide edge of the tine for tightening the mink skin before activating similarly pneumatic staples, of which a lower staple assembly 30 is height-slidably mounted on a transversely movable carriage 32, so that the assembly 30 can be used both for stapling the mink skin in the transverse direction on the underside of the tan and subsequently adhering the tail of the skin to the tan while it is carried out from the tan by displacement forward by means of special embodiment rollers or wheels.

DK 175405 B1

In a preferred apparatus according to the invention, the combined holding and tightening H arrangement as well as the staple assemblies are modified as shown for example. 14 - 22.

H 5 In FIG. 14, it is seen how a rear broadening of a mink skin 33 positioned with the back H downwardly on a pivotable support plate 34 is inserted in place between the lower and upper hollow H decoys of a holding device 36, while a taper with the tip end is pushed in front H in the mink skin. Thereafter, the carrier plate 34 is pivoted downward to approximately vertical position H to make room for rotation of the holding device 36 to a lower position, after which the carrier plate 34 is pivoted upward again.

H From a parked position, cooperating staple assemblies 38 are laterally displaced around the wide end of the tan (Fig. 15) while being pushed forward for H tightening of the mink skin on the tan. Thereafter, the staple assemblies 38 15 are activated for preferably simultaneous retraction of a suitable number of staples across both sides of the tine's width to secure the tapered mink skin to the tan, which is then released and executed from the apparatus via a conveyor belt 40 (Fig. 20).

As can be seen clearly in FIG. 16, the staple assemblies 38 are positioned at an inclination 20 such that the staples at the respective flat sides of the tan are pushed in with slightly forward sloping tip ends, which is done to prevent the tapered mink skin from being able to pull the staples. The sloping position means that the staples for forward pulls simply bite better on the tan.

In the Staple 38 (Figs. 17 and 18), both are provided with inclined magazine slots 42 through which new staple rods 44 can be successively moved downward to an insertion position such that a charging arrangement 46 when the staple 38 is positioned in said parked (inactive) position, a new staple rod 44 I may be positioned in the staple assemblies 38. Elongated pistons 47 are operated by also 30 inclined compressed air cylinders 48 (Figs. 17 and 18).

11 DK 175405 B1

In order to allow such automatic loading of the staple assemblies 38, these cannot comprise a conventional feeder for pushing the staple rods forward towards the drive-in position, in which case such a spring would first have to be taken out before it is possible to introduce a new staple.

5

Instead, both staple assemblies 38 are provided with a small endless belt conveyor 50 with a rubber band or belt 52 (Fig. 16), which is pressed against the top side of the staple rod and continuously affects it with the required forward pressure. In practice, said rubber band may be an O-ring. The belt conveyor 50 I 10 can be driven by a small electric motor; but preferably a small double-acting pressure cylinder 54 as well as a one-way clutch 56 is used to propel the staple feed mechanism, which - as mentioned - replaces the usual compression spring.

Preferably, rather narrow staples are used, so that the tension cover can be distributed in as many staples as possible, for example in a transverse zone extending for approx. 3 mm from each side of the tan.

Claims (10)

1. Method for automatic assembly of fur animals, e.g. mink skins, in a tightened condition on tane (5), ie. a flat conical cane - preferably of wood, H - wherein the fur animal fur is loosely placed on the tan (5), which is previously applied to a tan pose (13, 14), a widening of the tan (5) being fixed in a tan holder, while free H edges of the fur animal skin are fixed by means of clamping means at least one flat side of the tan (5), and H - and wherein the fur animal skin is ejected on the tan (5) by effecting a relative * H shooting movement between tan carrier and clamping means, before the fur animal H 10 is fixed in the tightened state to the tan (S) by means of staples, H characterized by the following further method step H - removing a tan bag (13, 14) from tan bag magazine (12) and placing the tan bag (13, 14) on a support surface, H - removing the tan (5) from the tan magazine (4) and placing the tan (5) on said support surface outside and behind the tan bag (13, 14) and in front of an insertion means, - opening a widening of the tan bag (13, 14) and f - activating the insertion means for inserting the tan (5) into the tan bag (13,14), - lateral displacement of tane (5) with tan bag (13,14) on the support surface 20 for position in front of the feeding means, - activating the feeding means for forward displacement of tane (5) with tan bag I (13,14) to skin application position, I - wherein operator monitors skin application and introduces rear edge portions of the skin into said clamping means at the respective flat sides and activates said 25 clamping means, I - rotation of tane ( 5) with fixed skin to preferably underlying tension position, wherein the tine (5) is displaced forwardly by a tightening means pressed against the rear, broadening of the tane (5) - before attaching said edge portions of the skin to the tane (5) by means of staples, I 30 mer, DK 175405 B1 13 - execution of the tan (5) by forward displacement thereof with tightened and mounted skins and - possible simultaneous tightening and fastening of tail of skin to tan (5). 2. Apparatus (2) for automatic mounting of fur animals, e.g. mink skins, on tane (5), ie. a flat, tapered stick * preferably of wood, and comprising - retaining means for retaining a widening of the tine (5), - clamping means for fixing free edge portions of the mink skin, - means for tightening the mink skin on the tan (5) by effecting a relative displacement movement between tan holder and clamping means, and staples for fixing the mink skin to the tan (5) by means of staples, characterized in that it comprises - a tan magazine (4) with space for a plurality of tines (5) ), A first lifting device (18) arranged above the tan magazine (4) with gripper means (28, 30) arranged to take tan (5) individually from the tan magazine (4) and place the tan (5) in a a fixed position on a support surface, namely with the wide end of the tan (5) positioned in front of a feeder which projects through a longitudinal slot in the support surface, and which is operated by a displacement generator, e.g. a compressed air cylinder, - a tan bag (12) with space for a plurality of stacks of tan bags (13, 14), - a second lifting device (20) arranged over the tan bag (12) with gripping means adapted to take out tan bags (13). , 14) individually from the tan bag magazine (12) and place them in a particular position on said support surface, namely in line with and in front of said tan (5), so that the wide end of the tan bag (13, 14) is positioned in front of the tip end of the tan ( 5) suction means adapted to fix a lower side portion of the wide end of the tan bag (13, 14) so that the wide end thereof can be kept open by said second lifting device while activating said feeding means for introducing the tan into the tan bag. , a further feeding means which projects through a longitudinal slot in the support surface and is operated by a displacement generator, e.g. a compressed air cylinder, which is further provided for - after the tan (5) with tan bag (13, 14) has been displaced laterally to a position next to and parallel with the second lifting device (13, 14). and 5. moving the tan (5) forward to a preferably manually operated skin application position. Apparatus according to claim 2, characterized in that the tanning magazine (4) is designed as H a trolley with a height-adjustable magazine bottom (6) with space for four stacks of preferably similar tans (5), f. eg. 4 x 80 pcs. tanner for gloves. Apparatus according to claim 3, characterized in that it comprises raising / lowering means, e.g. in the form of threaded spindles (10) with protruding supports (8) which engage with the height-displaceable magazine base (6) of the tanning magazine (4) and which are operated via a chain drive by a common electric motor with associated frequency converter. Apparatus according to claim 2, characterized in that the tan bag (12) is positioned in front of the tan tray (4) and is slidably suspended on support rails extending along opposite sides of both the tan bag (12) and the tan tray (4). the tan bag (12) is designed to accommodate four stacks of tan bags (13, 14), namely, preferably two stacks of tan bags (13) for tan bags for bitches and two stacks of tan bags (14) for tan bags for men. . Apparatus according to claim 5, characterized in that the tan bag (12) is provided with a magnetic coupling at the end facing the tan magazine (4), so that the tan bag (12) follows the tan bag (4) outwards. , when driven from the device (2). fieks. for replacement or refilling. Apparatus according to claim 2, characterized in that both lifting devices (18, 20) comprise a traverse extending centrally over the tan bag and tan magmas (12, 4), respectively, and carrying a slidable carriage. (22) having one or more vertical pneumatic lifting cylinders (24) for a suction sole (26) having a plurality of active suction cups (28). DK 175405 B1 15 Apparatus according to claim 7, characterized in that the lifting device (18), which serves the tan magazine (4), is provided with a suction sole with a central, heavy suction cup (30) and preferably a smaller suction cup next to the tip end of the tan. Apparatus according to claim 7, characterized in that the lifting device (20) serving the tan bag magazine (12) is provided with a suction sole with a number of smaller suction cups distributed along the suction sole. Apparatus according to claim 2, characterized in that in said skin application position 10 it is arranged with an upper position with a support surface for a mink skin which is manually fixed by the operator, while said further feeding means carries the tan (5) with bag (5). 13, 14) forward and into the mink skin, after which said free edge portions of the mink skin are positioned in the retaining eyelets, and at a lower position, wherein said tightening by said relative movement of the tine holder and clamping cavities is effected before fixing the mink skin upon activation. of said staples. _; __