DE4100764A1 - Tool and installation for forming outer and intermediate soles - comprising shoe body, side moulding parts and counter-pressure plate, side moulding parts having openings in side faces - Google Patents

Abstract

Tool (I) for moulding shoe soles having outer sole and one intermediate sole comprises: (1) one last for the shoe body, (2) one pair of side moulding parts, and opt. (3) one counterpressure plate, the side moulding parts which, in operation, are in closed position, having openings in the side faces. In the closed position, one casting channel leads into a mould cavity for forming the outer sole, and the other leads into a mould cavity for forming the intermediate sole, one of these channels opening into one front face of the side moulding parts and the other channel opening into the other front face of the side moulding parts. Soles are formed from mixt. of isocyanate and polyol forming a PU. Side moulding pieces in closed position have number of casting holes corresp. to number of layers to be formed, one of the two casting holes opening into one front face of the side moulding pieces and other opening into other front face of those pieces. Side moulding pieces have number of casting holes corresp. to number of layers or sections of layers, and side moulding pieces in direction of heel tips and direction perpendicular to it have a plane of sepn. and the casting holes empty into front faces and side faces of side moulding pieces. ADVANTAGE - More compact work stations are achieved, with mixing devices arranged in two lines instead of all in one, technical requirements for prodn. line are reduced. (16pp Dwg.No.1a/8)

Description

The invention relates to a tool for molding soles on shoe uppers, the one Outsole and have at least one midsole, in particular from Po lyurethane-reacting mixtures of isocyanate and polyol, with at least one Lasts for the shoe uppers, at least one pair of side moldings and if necessary at least one counter-stamp, the side moldings in the closed position Side surfaces coming into contact with recesses which are in the closed position a sprue leading into the mold cavity for molding the outsole and a sprue into the mold cavity for molding the midsole limit, as well as a system with workstations with such tools.

For the purposes of the invention, tool is the shape for molding soles Understand shoe uppers.

In the context of the invention, shoe shafts include prefabricated leather shoe shafts, to understand from textile material, from elastomer and from thermoplastics as well as further Shoe uppers used before the shaping and shaping of the shoe soles in the form of a shoe designated tool are made and then molded to the soles will.

Under shoe uppers are also be within the scope of the invention from a thermoplastic to understand standing shoe uppers, the z. B. either from plasticized granulated Polyurethane, polyvinyl chloride, etc. injected or from Ge reacting to polyurethane mix of isocyanate and polyol.

For the purposes of the invention, shoe uppers are the usual shoe uppers for half shoes, sheepskin shoes as well as the shoe uppers of ankle boots, sports shoes, Football boots, generally boots, as well as work shoes and work boots too understand.  

In the context of the invention, shoe soles are made from a thermoplastic material rule material such. B. PVC or granulated plasticized polyurethane to understand hen, as well as shoe soles made of mixtures that react to polyurethane be made from isocyanate and polyol.

In the simplest case, shoes, boots, etc. have one made of only one material molded sole, d. H. an outsole, made of abrasion-resistant material.

Abrasion-resistant material generally has the disadvantage that it has practically no damping effect Has properties so that when walking or running through the unevenness of the terrain Triggered impacts or vibrations practically undamped to the spine be directed. For this reason, single-layer soles of this type are preferred intended for work shoes and work boots.

To achieve cushioning of the shoe soles, it is known to be between the outsole and to provide the shoe upper with a midsole that has low abrasion resistance speed, but has high elasticity and damping properties and that is why is also called comfort sole.

These midsoles known from soles with a two-layer structure are described in the fol called soles because they connect the outsole to the shaft produce. In the following this sole can also be made of non-damping material stand.

There are two-layer rubber soles known (DE-AS 20 48 596), which in the manner Shoe uppers are molded onto a shoe in a first process step a shaft or comfort sole molded from a cushioning rubber compound and and in a second process step following this comfort or upper sole an abrasion-resistant but little or practically no damping barrel sole is molded from abrasion-resistant material.

It is also known (DE-OS 14 85 987), on a shoe upper, also in one he The first step in the process is to first form a comfort or upper sole and then in a second process step into a or comfort sole recess formed by the material of the comfort or upper sole is framed like a frame to bring in the material for the outsole. If materials of different colors are used, the tread has a framed Be rich in the color of the last applied material.  

It is also known DDR-PS 64 882, initially the outsole with a side edge produce, on the upper limit of the lateral edge indicated on a last arranged shoe uppers and through openings provided in the outsole the material for the upper or comfort sole is that of the outsole and the upper to fill in the limited space.

It is also known (DDR-PS 64 882), for example a gum from a section of material miplate to form an outsole and then form the upper.

It is also known (DE-AS 20 22 118), two-layer soles made of polyurethane reacting mixtures of isocyanate and polyol in such a way that in one molded a comfort or upper sole onto a shoe upper and after the mixture has reacted to give polyurethane in a second process step the outsole is molded.

It is also known (DBP 22 41 493) in the manufacture of two-layer soles Polyurethane-reacting mixtures of isocyanate and polyol first the outsole to shape and then between one between the outsole and the line Constant shaft formed space to form the comfort or sole.

To form the two layers of soles, the fully reacting mixture is applied the amount supplied to a mold cavity or mold cavity, the Vo lumen is greater than the volume of the outsole. These volumes will be after supplying the respective reaction mixture to the volume of the be to reduce the size of the sole layer.

All these methods have in common that first the harder or the abrasion-resistant sole manufactured and only then the elastic d. H. softer in terms of the outsole Sole layer, because during the molding of the outsole to an already made one Comfort or upper sole the softer material of the comfort or upper sole uncontrolled would be compressed or compressed.

The work referred to as molds for making shoe soles on shoe uppers Witnesses have two side moldings each with a cutout, a bottom stamp and a last (DE-AS 20 48 596, DE-PS 17 29 141, DE-OS 35 16 280).

In the closed position of the side moldings, the cutouts form an opening, one Mold cavity for the sole to be molded onto a shoe upper.  

The floor stamp, which is adjustable in height in the opening, forms the lower limit tongue of the mold cavity and the side moldings in the closed position The upper, which is to be placed on the last, forms the upper limit of the Mold cavity.

The side moldings have in their contact surface perpendicular to the direction of movement of the Bo denstempels extending groove-like recesses in the closed position of the Form side moldings sprue, over which to shape the outsole or shaft sole the material in question is fed.

With this design of the tool, the parting surface runs between the shaft sole and the outsole and the tread of the outsole parallel to each other, and agree the spatial geometry of the surface of the height-adjustable floor stamp.

It is also known (DDR-PS 64 882, DBP 22 41 493), the last for a shoe shaft to be arranged on a height-adjustable turret, in addition to the last still has a counter stamp.

To form the outsole, the counter punch dips into the opening and forms the upper limit of the mold cavity for the outsole while molding the Outsole, the counter-punch blocks the sprue channel for the supply of material for the Upper sole.

After the material for the outsole has been supplied, the ground stamp is made after the hardening raised against the outsole arranged on it by a predetermined amount and blocks the sprue hole from continuing to supply material for the midsole.

After the outsole has solidified sufficiently, the side moldings will come apart moved, the turret moved up and pivoted so that the last with the shoelace listed toward the one arranged on the bottom stamp neten outsole shows.

After closing the side moldings, the rotary head is moved so that the on the Lei most opened upper, a sealed upper limit of the mold hollow space for the shaft sole to be formed.

Via the sprue hole for the midsole, the material for the midsole or Comfort sole supplied.  

Then the turret is raised with the finished shoe and the finished one Derailed shoe.

Molds or tools with a turret are also known, the two bases have stamps. Both floor stamps form a height-adjustable and swiveling bare structural unit, which is referred to as a pivotable floor stamp.

By using the counter stamp and the one bottom stamp, an intermediate sole and then the outsole is formed by replacing the base stamp and lastly by exchanging the counter stamp for the last with the wound The upper of the upper is shaped.

In this way, a three-layer sole is molded onto a shoe upper.

Generally, the outsole can be made with openings in which the material of the Subsequently produced intermediate layer penetrates, so that the tread of the outsole may have areas of different colors.

It is also known (US-PS 40 90 831) two pairs of side moldings in different Arrange height one above the other.

The two side moldings of the top pair work in the manner described above with a shoe upper on a last and one on a floor stand pel arranged outsole together to form the shaft sole.

To form the outsole, the two side moldings of the lower pair of Side moldings to be used, the ones pointing towards the top pair of side moldings Each end have an angled leg. In the closed position of the lower one Side moldings, the two angled legs close the opening in the direction to the upper side moldings and have the funk while molding the outsole counter stamp.

During the formation of the outsole, the base stamp works with the in the closed position located lower side moldings together, which are then in their open position brought so that the bottom stamp with the outsole formed on it in the ar can be brought into position in which it can be shaped with the upper side moldings the shaft sole can work together.  

These tools are combined with drive elements to work stations that to several in a row to production lines or to several on rotary tables Rotary table systems can be arranged.

In principle, these production lines and rotary table systems enable efficient production times for shoes, boots and the like

To further reduce these times, it is known (DE-PS 35 38 721), the shoe uppers no longer to be manually mounted on the bars of the rotary heads on the rotary table systems and after the soles have been molded onto the uppers, the finished shoes are also manually to derail, rather the shoe uppers drawn on lasts have one end loose conveyor transported to the rotary table system and by a robot with the strips recordings of the rotary heads locked. Then the finished shoes with the Handing strips from the robot to the conveyor belt.

The shoe uppers are manually operated at further workstations on the endless conveyor belt mounted on the lasts and also manually derailed, as well as the final ar such as deburring.

The manufacturing times have so far been largely determined by the fact that only after ei sufficient solidification of the material of the molded outsole or intermediate or The sole of the upper can be molded. Generally the Sole layers formed one after the other.

Furthermore, the construction work for the workstations is considerable if two or three Sole layers are to be formed.

The previously known forms or tools are designed so that the cutouts, which form the sprue holes in the closed position of the side moldings, always from one Side of the side moldings open into the opening, d. H. in the toe or heel of the breakthrough in the side moldings. This is for rotary table systems Arrangement of the sprue holes only in the heel area or only in the toe area due to the fact that the supply of the material forming a sole layer always from the Periphery of the turntable. This leads to, for example, two-layer Soles in two working positions of the turntable, through one of the solidification of the relevant number of steps of the cyclically rotated round table is specified, the sole layers are formed individually, and at two ver different parts of the turntable.  

Two-layer soles are manufactured in the same way and on shoe uppers molded when the molds are each arranged in work stations that a ferti form the junction.

The invention is based on the fact that for the molding of soles on shoe uppers in Ferti roads requires significantly less technical effort than in rotary tables systems and they are easier to assemble according to the modular principle.

The invention has for its object to provide a tool (a shape) that a enables a more compact workstation and the technical effort for production lines (Attachments).

This task to create a tool for molding soles on shoe uppers that have an outsole and at least one midsole, in particular from Polyurethane-reacting mixtures of isocyanate and polyol, with at least one Pair of side moldings and possibly at least one counter-stamp, the screen tenformteile in the side surfaces coming into contact in the closed position Mung have in the closed position in the mold cavity for the For men of the outsole leading sprue and one into the mold cavity for the For limit men of the midsole leading sprue, according to the invention solved that a sprue in one end face of the side moldings and the other Sprue channel opens into the other end face of the side moldings.

These measures ensure that the molding of a two-layer, from a Outsole and a sole made of polyurethane in one work station can be done by, for example, the sprue hole for the outsole in the toe area or heel area and the sprue hole for the shaft sole in the heel area or in The tip area of the side moldings runs and the two devices for mixing Isocyanate and polyol to form polyurethane-reacting mixtures diametrically opposite to Workstation, d. H. can be arranged to the side mold parts of the tool, which can be identical in structure due to the available space, while in the other Case with the usual arrangement of the sprue holes in the side moldings both Facilities would have to be arranged on one side of the workstation and additional ones constructive measures would be required to the formed mold spaces Form the outsole and the midsole to supply the respective mixture or facilities with a considerably more complicated structure would have to be used.  

There is already a considerably lower design effort for the individual ares workstations.

The effort for several work stations with shoes arranged one behind the other shaping is also less. In particular, the space requirement is more conventional Production lines are reduced because the mixing devices are no longer all in one Row, but are arranged in two rows.

In a still further embodiment of the invention, the side moldings in the Closed position a number of corresponding to the number of layers to be molded Sprue holes, with one of the two sprue holes for the same in the Ar beitstakt each two shoe layers to be molded into one end face of the sides molded parts and the other sprue hole in the other face of the side molded parts mün det.

Through these measures, the molding of soles, for example three layers have significantly simplified. Tools of this type have two pairs of sides molded parts. One pair is slidable and ver above the other pair pivotally arranged, due to the position of the two pairs to each other and the remaining tool parts first the outsole and the shaft sole and then shaped the midsole between them.

Due to the arrangement of the sprue holes according to the invention, by the sprue hole for the outsole in the heel area, the sprue hole for the shaft sole in the toe rich and the third sprue hole is arbitrarily arranged in one of the two areas it is possible in the same work cycle the outsole and the sole and in a wide to shape the midsole.

This principle can be generalized to any number of layers of one Sole.

In a further embodiment of the invention, according to a further embodiment principle the side moldings one of the number of layers or the sections of the layers corresponding number of sprue holes, with the side moldings in heel spit zen direction and in a direction perpendicular thereto have a parting plane and the Sprue holes open into the end faces and side faces of the side moldings.  

In a further embodiment of the invention, the side moldings and the others Tool parts each arranged in a tool holder and the tool holder integrated on a turntable in a turntable system or in a production line.

The task of a system for molding shoe uppers to a production line to create arranged workstations with devices according to the invention, he will solved according to the invention in that the one (s) assigned a sprue hole (s) nete (n) device (s) for mixing polyurethane-reactive mixtures to one side of the production line and to the other sprue hole (s) ordered device (s) are arranged on the other side of the production line.

These measures ensure that the length of the known production lines is significantly undercut.

The further claims are further advantageous refinements of the invention.

In principle, each work station could have the appropriate number of facilities for Mixing isocyanate and polyol to form polyurethane-reacting mixtures be assigned.

To reduce this expenditure on facilities, form in a further embodiment device of the invention for mixing of reacting to polyurethane Mixtures on one side of the production line and those on the other side of the Fer facilities arranged for mixing each as one to the Arbeitssta movable (movable) unit.

The invention is explained in the drawings using exemplary embodiments.

FIGS. 1a and 1b show a section through a tool with two side mold parts, a bottom die and a counter-punch and a last with a shoe upper aufgezoge NEN.

The cut runs in the parting plane of the closed position of the two side moldings, which in the drawing plane.

With 1 the tool is designated, with 2 the one side molding behind the parting plane, while the side molding above the parting plane is not visible.

Both side moldings each have a recess 3 and a recess 4 , which in the closed position of the side moldings form the sprue hole for the material for shaping the outsole or the sprue hole for shaping the shaft sole. 5 denotes the device for mixing isocyanate and polyol for the mixture which reacts to the outsole, and 6 denotes the device for mixing isocyanate and polyol for the mixture which reacts for the midsole. 7 is the counter-stamp, 8 is the bottom stamp and 9 is the shoe upper mounted on the last.

In the position of the tool of Fig. 1a is the outsole 10, in the position of FIG. 1b, the midsole 11 is formed, wherein the means do in a conventional manner with its mouth piece against the associated gate hole.

In FIGS. 1a and 1b, the two bodies 5 and 6 are arranged diametrically opposite each other, the tool being arranged between them. If the tool is additionally designed as a rotatable functional unit, the two devices can be arranged on the same side of the tool.

FIGS. 2a and 2b show schematically in the representation of FIG. 1a and 1b, a tool with neck 13 has (Fig. 2a), a counter-punch 12.

The approach of the counter-punch divides the mold space for molding the outsole into the partial space 14 in the toe area and in the partial space 15 in the heel area, the sprue bores 16 and 17 opening into the partial spaces. These two subspaces are optionally fed to polyurethane reacting mixture of different density and / or color.

After sufficient hardening of the reacting mixtures, the counter-punch is exchanged for the last with the attached shaft according to FIG. 2b to form the mold space for the shaft or midsole. The sprue bore 18 formed by the two side molded parts in the closed position opens into this intermediate space.

By means of the tool, it is possible without the previous design effort tri-color outsole, the between the tip area and the Heel area of the outsole section made of the material of the shaft or Midsole exists.  

FIGS. 3a and 3b show in the illustration of FIG. 1a and 1b and 2a and 2b, a tool with two upper side mold parts of which also the only one referred to visible and 19, and two lower side mold members, of which also only the one is visible and designated 20 . Between the upper and lower side mold parts, the intermediate plate 21 is arranged with the lugs 22 and 23 , respectively, with which it forms the mold space for molding the upper sole into the two subspaces 24 and 25 and the mold space for molding the outsole into the subspaces 26 and 27 divided.

According to Figure 3a open. In these compartments, the feed channels 28, 29, 30 and 31, is supplied through the means of the devices 32, 33, 34 and 35 for mixing to give polyurethane ausreagie rendem mixture, the material in question.

After sufficient solidification of the material in the subspaces, the base stamp 8 is lowered with the intermediate plate 21 , whereby it comes out of engagement with the upper side mold parts, by further searching the base stamp with the lower side molded parts, these come out of engagement with the intermediate plate, which will subsequently moved laterally and the bottom stamp with the lower side moldings move against the upper side moldings, the mold space for the formation of the midsole 36 being formed.

The sprue 37 , which was blocked by the intermediate plate in FIG. 3a, opens into this mold space. The material for the midsole is supplied to this mold space by means of the device 38 . It is thus readily possible to form a sole whose outer sole has three areas of different colors and the upper of which has an edge with three differently colored sections, the midsole separating all of these sections.

It is easily possible in front of the heel area and / or toe area of the outsole arrange inserts corresponding to their shape.

The previous exemplary embodiments showed tools whose sprue channels in the heel and tip area are arranged and wherein the parting plane of the side moldings in Longitudinal direction, d. H. run from the heel to the toe.

Fig. 4 shows in plan view 3, the side mold parts 39 , 40 , 41 and 42 another tool principle, according to which the side mold parts have two parting lines, one also extending in the longitudinal direction and the other perpendicular to it.

The surfaces of the side moldings which come into contact in the closed position likewise have recesses which delimit the sprue channels 43 , 44 , 45 and 46 in the closed position . The side mold parts are 47 , 48 , 49 and 50 in and out of the closed position by means of guides known per se (e.g. swallow tail guides). . driven, the side moldings being locked together in the closed position.

In Fig. 4 are formed as webs 51 , 52 and 53 of an invisible counter-punch (see Fig. 2a, number 12 ), which divides the mold space for molding the outsole into four sub-spaces 54 , 55 , 56 and 57 , in which each - as shown in Fig. 4 - one of the sprue holes opens.

It is readily apparent from comparisons with FIGS. 2a and 2b that with the guiding principle according to FIG. 4, an outsole with four sections of different density and / or color can be formed, the material for the four sections being fed simultaneously .

The devices associated with the sprue holes for mixing isocyanate and polyol are designated 58 , 59 , 60 and 61 , an arrangement of only two devices being possible if the tool can be pivoted 90 ^o about an axis perpendicular to the plane of the drawing. When molding the midsole, your material fills the areas exposed by the webs.

Instead of one or more webs, an insert or multiple inserts can also be used parts may be provided.

Fig. 5 shows schematically a designated 64 tool holder, in which the parts of the tool - side moldings, bottom stamp, counter-stamp and last are arranged, the last is omitted if the soles are prefabricated - displaceable to each other and optionally height adjustable and / or rotatable are arranged.

The tool holder is rotatably mounted on a plate 65 , so that - if necessary - the tools can be pivoted into such a working position and the cast holes and devices that clear the material for the sole layers can be brought into engagement.

The tool is symbolic by the dashed outline inside the tool shown.  

The plate is arranged on a turntable system on the turntable or, in the case of a linear production line, on a transport trolley which is customary in tool construction, the turntable and the transport trolley being schematically denoted by 66 .

FIG. 4 shows a top view of a system for molding soles with three layers on shoe uppers, the workstations being designed in accordance with FIGS . 1a and 1b.

The workstations are 1 ₁ , 1 ₂ , 1 ₃ . . . 1 denotes ₁₁ (11 = any natural number).

On both sides of the work stations arranged in a row there is a pair of bars 10 or 11 , on which a pallet 12 or 13 can be moved .

The devices 14 and 16 for mixing isocyanate and polyol for the outsole or midsole to be molded are located on the pallet 12 and the device 15 for mixing isocyanate and polyol for the shoe sole to be molded on the pallet 13 .

To the side of the pairs of spars 10 and 11 is a conveyor belt 17 and 18, respectively, for transporting the lasts with the shoe uppers to the work stations or for removing the lasts with the finished shoes from the work stations. In addition, robots 19 and 20 are provided for the lasts with the shoe uppers or shoes.

Figs. 6a and 6b show schematically Schuhansohlungsanlagen, wherein Fig. 6a, a li-linear manufacturing line 71 and Fig. 6b shows a rotary table system 72. In both cases, the plane of movement is horizontal. The difference between the two figures is that the tool holders are arranged on the rotary table only at the periphery.

The tool holders are also denoted by 64 and arranged on plates 65 , the sprue hole or sprue holes on each side of the side moldings being designated mathematically with 43 , 44 , 45 and 46 and possibly only being arranged on opposite sides.

Fig. 7 also shows schematically a linear production line, the transport plane for the tool holders runs in a vertical plane. Identical parts are designated with the same reference numerals in these FIGS. 6a, 6b and 7.

FIG. 8 shows a top view of a linear production line for molding three-layer soles with the tools of FIGS . 1a and 1b.

The workstations are designated 69 and have tool holders 64 on plates 65 .

The means for mixing isocyanates and polyol for the outsole and the shaft sole are arranged on one side of the production line and designated 70 and 71, respectively, while the means for mixing for the midsole are designated 72 .

These facilities are fixed and the workstations ver slidably arranged.

Furthermore, a robot 73 is provided which removes the lasts with the shoe uppers from a conveyor belt 74 (endless conveyor), feeds them to the workstations, takes them up with the finished shoes and delivers them to the conveyor belt.

Reference symbol list

1 tool
2 side molding
3 recess
4 recess
5 mixing device
6 mixing device
6 ′ mixing device
7 counter stamps
8 ground stamps
9 lasts with shaft
10 outsole
11 midsole
12 counter stamps
13 approach
14 sub-area top area
15 heel area
16 sprue hole
17 sprue hole
18 sprue hole
19 Upper mold part
20 Lower mold part
21 intermediate plate
22 Approach
23 approach
24 subspace tip
25 subspace tip
26 heel compartment
27 Heel subspace
28 sprue holes
29 sprue holes
30 sprue holes
31 sprue holes
32 facilities
33 facilities
34 establishments
35 facilities
36 mold space
37 sprue
38 establishment
39 side moldings
40 side moldings
41 side moldings
42 side moldings
43 sprue
44 sprue
45 sprue
46 sprue
47 tours
48 tours
49 tours
50 tours
51 bridges
52 bridges
53 bridges
54 partial room
55 partial room
56 partial room
57 partial room
58 mixing device
59 mixing device
60 mixing device
61 mixing device
62 footbridge
63 Space for inserts and midsole
64 tool holder
65 plates (turntable)
66 dolly
67 linear
68 rotary table system
69 work stations
70 mixing device
71 mixing device
72 mixing device
73
74 endless belt
75 roughening robots
76 removal robots

Claims (9)

1. Tool for molding shoe soles which have an outsole and at least one midsole, in particular from mixtures of isocyanate and polyol which react to polyurethane, with at least one last for the shoe uppers, at least one pair of side moldings and, if appropriate, at least one counter-punch, the Side moldings in the side surfaces in the closed position to have recesses which, in the closed position, a channel leading into the mold cavity for molding the outsole and a lead into the mold cavity for molding the midsole limit the sprue, characterized in that one sprue opens into one end face of the side moldings and the other sprue opens into the other end face of the side moldings. 2. Tool according to claim 1, characterized, that the side moldings in the closed position one of the number to be molded Layers corresponding number of sprue holes and one of the two sprue holes for each to be molded in the same cycle the shoe layers in one end face of the side moldings and the other Cast hole opens into the other end face of the side moldings. 3. Tool as in claim 1 characterized, that the side moldings one of the number of layers or sections of the Layers have corresponding number of sprue holes and the sides molded parts in the heel tip direction and in a direction perpendicular to it Have parting plane and the sprue holes in the end faces and Seitenflä chen of the side moldings open.   4. System for molding soles on shoe uppers with a tool one of claims 1 to 3, characterized, that the side moldings and the other tool parts each in one Tool holder arranged and the tool holders on turntables in a turntable system or integrated in a production line. 5. Plant for molding shoe soles to shoe uppers with one Production line arranged workstations, each after a tool one of claims 1 to 4, characterized, that the device (s) associated with a sprue hole (s) for Mi on the one side of the fer and the one assigned to the other sprue hole (s) direction (s) are arranged on the other side of the production line. 6. Plant according to claim 5, characterized, that the workstations and facilities for mixing polyurethane Reacting mixtures arranged to be displaceable or movable are. 7. Plant according to claim 6, characterized, that the production line has at least one conveyor belt for transporting the bars open shoe uppers to the workstations and for the removal of the lei with the finished shoes. 8. Plant according to claim 7, characterized, that the production line with at least one robot for the transfer of the strips the shoe uppers or the finished shoes. 9. Use of the tools according to one of claims 1 to 3 for manufacture made soles.