JPS61502949A - Improvements in metal pressing and punching - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Improvements related to metal pressing and punching The present invention provides improvements in metal pressing and punching. Relating to an improved method and apparatus for manufacturing required parts from sheet metal materials. It is something to do.

Such parts, such as motor laminates and parts of food and drink cans, are This requires an extremely large amount of work. Under such circumstances, Maximizing the use of raw materials and minimizing scrap is particularly important in terms of manufacturing economics. One object of the present invention is to propose an improvement in this regard.

Another object of the present invention is to use manual and automatic transfer machines, robots, etc. Reduces the need for material conveyance, regardless of the It should be possible to operate continuously.

The invention relates to a method for cutting parts from a continuous strip of metal. Periodically repeating features are shaped at axial intervals corresponding to successive part locations. cut the strip so that the part locations are closely defined, and during which wavelength adjustment is performed to adjust the spacing of said features on the strip and the length of the cutting means. This feature is characterized in that the dimensions in the hand direction are made to correspond to each other.

In a preferred embodiment, the cutting means is a progressive press tool, and the cutting means is a progressive press tool; The dimension is the distance between successive stages.

The adjustment creates weak areas in the strip between part positions, i.e. During profile slitting of the trip, slots are punched out and then into the strip. This can be done by applying a pulling tension difference to enlarge the vulnerable area. can. Instead, such adjustments should be made immediately after the strip is introduced into the press tool. It may also be done thermally by heating the strip beforehand.

The present invention further provides a press tool having a plurality of press positions with the dimensions of the parts to be manufactured. In a method of supplying a strip of material having a width significantly greater than that of the strip The strip is fed in steps and the strip is positioned widthwise between successive steps. The feature is that the strip is positioned and processed sequentially in the width direction of the strip using each tool. It is something. By mutually inclining the forward feeding direction and the positioning width direction. Therefore, optimal dense arrangement of components can be achieved. In addition, each part on the press The progressive workpieces are arranged in the width direction so as to perform punch operations sequentially at different positions. A tool can be provided.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a plan view showing a method of forming a strip used in the present invention.

FIG. 2 shows the first step of another method for forming strips used in the present invention. It is.

FIG. 3 shows the next step in the method.

4 and 5 show in detail an alternative method of carrying out the joining shown in FIG. Ru.

6 is a perspective view of a roll pair that can be used in the apparatus of FIG. 1; FIG.

Figure 7 shows a tiltable roll that can be used in place of the roll shown in Figure 6. It is a perspective view of a pair.

Figure 8 shows a tiltable shear shaft that can be used in place of the roll in Figure 7. FIG. 3 is a pair of perspective views.

FIG. 9 shows a slitting device according to an embodiment of the invention using the tiltable cutter of FIG. FIG.

Figure 10 is a detail of the slitted strip used in another embodiment. FIG.

Figure 11 shows the slitted strip fed to the progressive or punching die. FIG. 3 is a perspective view of the lip.

Figure 12 shows a typical punching process for slitted strips. It is something.

FIG. 12A is a diagrammatic side view of a variant of the canter wheel pair.

FIG. 12B is an end view of the deformed side of the cutter wheel pair.

Figures 12C to 12E show the present invention applied to a process including steps such as printing. FIG. 3 is a diagrammatic side view.

FIG. 13 is a perspective view of a press supply system used in the second invention.

FIG. 14 is a perspective view of a modification of the feeding device for two strips.

15 and 16 are side views of another supply system for use with the apparatus of FIG. 14.

Figure 17 is a diagram along the horizontal center plane of the die used in connection with the above supply system. FIG.

FIG. 18 is a similar diagram of a die used in the manufacture of delicate parts.

19 to 24 are views similar to FIG. 17 showing another form of the die.

FIG. 25 is a diagrammatic plan view of another strip supply means.

One feature of the invention is that the material is particularly suitable for problesive machining equipment or punching tools. It is related to supply. When feeding this material, the material strip is usually Unwind from the strip, slit it to an appropriate width, and make the slit strip. supplying the chips to one or more productive dicing devices. As a result, the shape is circular A high degree of material waste occurs when blanking out shapes, typically around 21%.

Referring to FIG. 1, in the apparatus used for practicing the invention, the steel strip 2 is It is fed from the feed coil 1 while being guided between the edge guides 3. This strip 2 , the slit is processed by the rotary cutter 5 mounted on the shaft 4, and the cuckoo 5 slits the strip into a shape that matches the part 10 to be subsequently punched. It has side cutting profiles that allow it to be mutually fed. Figure 1 is an example. 2 shows a circular part 10 placed between the slit edges. Stoli The cup is moved by a pull-out roller 6.

The slit pattern is determined by a feedback device, for example, the slit pattern of the pull-out roller 6. by a detector 7.8 such as a photometric cell array that detects irregularities caused by It can also be monitored or controlled. In order to form the slot 12 for the purpose described later. A second shear 11 may be provided. Furthermore, cut the edge 13 of the strip as required. to give the slitted strip a balanced profile shape. It is also possible to have a configuration in which it is given.

Therefore, the apparatus shown in Figure 1 can form a series of strips with non-straight edges. The strip can then be fed directly to another problem processing device or for later use. You can roll it up for use. The profile shape of the part is arranged densely as shown in the diagram. It is possible to reduce the total amount of scrap by approximately 11 to 12%. Become.

Although not shown, slitting is performed on a single wide strip to form a straight slit. two sets of strips with different wavelength profile shapes separated by a It is also possible to cut into This allows wide coils to meet various demands. Although it can be optimally utilized with the best ratio, the density in each pair is decreases.

Similar strips can be used to create more compact devices in the manner shown in Figures 2 and 3. It can be manufactured using The material strip 2 is unwound from the supply coil 1 and Shear diagonally to obtain the pattern shown in Figure 2. Next, shear sheet 1 4 are joined at the ends 15 by spot welding or the like to form a continuous strip.

4 and 5 show details of the joint. The seat 14 is in a predetermined position 18 Join by spot 't9 contact at these positions or by seam welding at these positions. No. The end profile shape shown in Figure 4 provides good joint strength and pyrolysis during the subsequent punching process. This realizes the maximum space for the cut hole 19. In Figure 5, the straight end A profile shape is used, which is easy to form and has a lower strength 2, and only a space for a smaller pilot hole 20 can be realized.

Referring again to the longitudinal profile slitting process in Figure 1, Figure 6 shows the location. A slit having a side-grinding profile shape 21.22 that can form a slit of a desired shape. This shows a suitable example of the shearing force vine 5 for cutting. As an alternative, this These slits are made using a cuckoo wheel with flat sides and a tiltable cutting axis. It can also be formed by In the arrangement shown in FIG. The cutter wheels 24, 26 are rotatably mounted on shafts 27, and these shafts are It is supported in a housing 23.degree. 25 which can be rotated via a ring gear 28. deformation In the example (see Figure 8), the A shearing wheel 30.31 with a suitable profile shape is placed as described above. Attach as follows. If such a configuration should form a sharp corner on either side It is advantageous for

FIG. 88 shows a shearing wheel 24A with a beveled edge.

Same as the example in Figure 7 except that the shaft 27 is arranged at an angle so that 26A can be used. This shows an example configured as follows.

The advantage of this embodiment is that it is not limited to a fixed wavelength as shown in FIG. These scales have a sharp curved shape on either side.

Figure 9 shows a slitting machine using a shear pole whose axis is tiltable as described above. This figure shows an example of a target device.

Three sets of shear wheels are mounted on the upper and lower carriages 35, and the carriages are Each housing 23.25 can be swung on the inner device 36, and each housing 23.25 can be configured to set the waveform spacing. Placed in a bearing 34 attached to the carriage 35 via a rough bunker 48 do.

The ring gear 28 engages a tilting rack 38 mounted on the upper and lower tilting carriers 37. match. A puff car 49 is arranged corresponding to the puff car 48.

The device described above is oscillated by a drive cam. The cam 41 is moved by the cam motor 42. By rotating, the cam follower 40 mounted on the fulcrum 50 is driven.

The motor 42 is adjustable in the axial direction to change the amount of lift of the follower.

The follower 40 moves the lower tilting carrier 37 through the bin and slot link connection. Only the throttle 3 is shown as a link connection. Another cam and A linkage (not shown) is driven by a motor 42 and other components are connected to the slot 4. Similarly, reciprocation is possible through 3.44°46. Member 45 is a counterweight and is driven in opposite phase to the cutter and its carriage. With An additional weight is provided and it can be attached via the bolt hole 53. additional cutter uni It is possible to have a configuration that compensates for the cut.

A tiltable shearing device similar to that shown in FIG. Alternatively, each shear wheel may be numerically controlled.

Furthermore, as is clear from Figure 9, the slitted strips are placed on top of each other. Guided ejection in the opposite direction and downwards, so that the profiled edges do not interfere with each other It becomes possible to wind each strip without twisting.

Continuous strips with profiled edges according to the various configurations described above can be formed.

Such strips are themselves known in the art, are relatively simple to construct and require high precision. Used to form non-essential parts, e.g. the ends of cans with blind lids . However, continuous strips with profiled edges have traditionally been It was not intended to be used by supplying it to a facility. One of the reasons is that profile addition The high precision required to align the machined strip to the punching die It is believed that this is due to the fact that it could not have been achieved. This accuracy depends, for example, on changes in outside temperature. deterioration due to temperature changes or temperature changes in coil strips stored outdoors. There is.

The axial dimensions of repeating features such as strip corrugations, i.e. edge profiles. adjustment from the reference value that may adversely affect the subsequent spacing of that feature. Means are provided to compensate for variations in material feed conditions (eg temperature or tension).

Referring again to Figure 9, the wavelength of the strip can be adjusted to meet the required criteria. I can do it. A feedback detector such as the photocell array 7 is connected to the cam motor 42. Connect to the control circuit for control. The feedback system has an effect on the length. other inputs to detect conditions, e.g. to sense the temperature of the supplied strip. It is convenient to provide a temperature sensor 106 of. Strip tension can be monitored can be done. This food bank device has an appropriate circuit configuration that is obvious to those skilled in the art. Therefore, detailed illustration will be omitted.

Furthermore, the present invention provides a method for finely adjusting the wavelength just before pressing, as described below. There are steps.

FIG. 10 has a sheared profile shape as described in connection with FIG. shows the strip. That is, each strip has i! Continuing strip It is joined by only three narrow material tabs. Therefore Fine adjustment of the strip position during feeding into the press can be achieved, for example, by using a differential pair of rollers. a fixed stop driven by or placed in conjunction with the normal feed mechanism for the press; The slot 12 is expanded by slightly pulling apart the adjacent areas of the strip using a This can be done by opening the The vulnerable areas are between each strip location. It may be formed only periodically, rather than continuously. This technique is similar to the strips shown in Figs. in which the welded joint acts as a weak point. Ru. In these examples, the average wavelength of the profiled strip is It can also be controlled by changing the weld gap during joining.

It is also possible to use other mechanical means for adjusting the wavelength. For example, Lips can be created by slits that add tension to the profiled edges or in the thickness direction. It can be elongated by hammering, which applies pressure.

Another means that achieves the same effect is shown in FIG. The strip is a regular die 54 A conventional strip feeder 55 is used to feed the strip feeder 55. The wavelength of the strip ” Fine adjustment of the strip can be performed using an infrared lamp 57 or a resistive element, microwave This may be done by heating by energy or other suitable means such as eddy current heating. heat source As such, one should be used that allows rapid alternating loading and has low vertical inertia.

This heating means receives feedback from a monitor device 58 such as an odometer array. Therefore, control. The installation positions of the strip feeder 55 and lamp 57 are interchanged. Also good.

FIG. 12 illustrates the above features. The figure shows the lamination of the rotor in an electric motor. The continuous manufacturing process by progressive processing of the body 63 and the stake laminate 64 is shown. There is. Immediately before processing, the needle is passed through an infrared radiation element 59, and the radiation element is Shaped to fit the locating section of the lip.

The amount of positioning adjustment that may be required is at most a few tenths of an inch. General A metal strip of regular dimensions, typically used for the manufacture of parts of , the above-mentioned adjustment amount can be achieved by a temperature change within 10'C.

In the configuration described above, the wavelength of the profiled strip is set shorter than desired. However, fine adjustments must be made by stretching or thermal expansion. emitted from longer wavelengths. It is also possible to make fine adjustments by shortening the length. In principle, for cooling Therefore, this can be done, but it is difficult to do within the available time. Ru. However, the space between the strips can be reduced by e.g. controlled pressing. The wavelength can be shortened by forming recesses or creases in the material.

By utilizing temperature effects and controlling the wavelength during longitudinal slit processing. , it is also possible to produce profiled strips that meet the desired standards. . Changing the temperature of the cutter wheel changes its effective diameter and therefore the wavelength. can be set. FIG. 12A shows a rim formed to allow expansion and contraction of the rim. A pair of cutter wheels 5 having spokes 101 are shown in a linear manner. . FIG. 12B shows a side portion of the pressure roll area 102 with an anti-skid surface 104 formed thereon. The detailed structure of the cutter wheel 5 is shown. The cutter wheel 5 is More convenient than spacing when used when the thickness of the material in between is less than or equal to the surface step. They are shown spaced apart. The canter wheel 5 has a slip-links for connecting the temperature sensor and heating element (not shown), respectively. Groups 103 and 105 will be provided. These have a detector 7.8 (see figure 1). Connect in feedback circuit. Suitable feedback circuit configuration is within the skill of those skilled in the art. This is self-evident. The diameter of the canter wheel can be determined by other means, e.g. It can be controlled by a hydraulically or mechanically driven wedge.

Instead of heating the cutter wheel, the strip can also be heated.

Strips with a profile shape and slits may be used other than those mentioned above. It can be manufactured by means such as laser or plasma cutting.

The invention has periodic features other than or additional to the profile edges. Applicable for feeding metal strips to progressive processing equipment or other cutting equipment. You can also Such features may be pilot holes or printed areas. .

Figure 12C illustrates such an application of the invention. Roll 10 strips 2 7 and back roll 108 to form periodic features. These are examples For example, it may be a printed area or an embossing. To keep the feature spacing at the standard value, roller 107 is expandable by thermal, fluid or mechanical means as described above; This means includes a sensor 106 which detects the relevant parameters of the supplied strip 2. Therefore, control. That parameter is usually temperature, but may also relate to the supply tension. Ru.

Feed strip 2 directly to the next processing station or first as shown by the break line. It can be wound into a coil and stored. Figure 12C shows the printed strip followed by slitting to shape each strip with a profile edge accordingly. In particular, an arrangement formed by a shaped shear wheel 5 is shown. print area To enable precise positioning with respect to the shear wheel 5, the wavelength between the printed areas are upper and lower heaters 5 using infrared lamps controlled by a photocell monitor 50. 6.

Figure 12D shows the printed sheet being placed in a tiltable shear in the housing 23.25. W fed directly to the wheel to form the profiled strip 9 1. In this example, the seat 2 is mounted within the holder 109. The material is screen printed by applying it to the support member 11o by the screen 111. It is. This printing is "traveling printing", and the screen 1] 1 and the boulder 109 is moved together with the strip 2 as shown by arrow F, and the strip is opened as shown by arrow F'. It will be restored. In this embodiment, a sensor 58 is used to detect, for example, a fluid between the features to be printed by stretching the printing screen 111 by a printer (not shown). control the distance.

FIG. 12E shows that strip 2 is printed and a press, such as the progressive processing apparatus shown, is used. It shows a configuration for feeding a tool or a punching tool. to roll 107.108 The wavelength of the characteristic is controlled to the standard value as much as possible by controlling the printing as shown in Fig. 12C. adapted and then fine-tuned by elements 56-58 as in the previous example. Now.

Another method that can be used to precisely match the wavelength of the feature to the pitch of the tool is to Take each pair of dies together with the block containing the pilot punch and guide pin. attach the block to an adjacent block, e.g. with a fluid ram, screw jack or It is possible to displace it in the axial direction by means of a thermally expandable material.

Figure 25 shows a strip with profiled edges that does not require fine adjustment. It is between planes showing the supply means. Straighten the strip 9 vertically by a guide (not shown) The gripper 110 moves along the paths P, Q, R, and S. let Gripper 110 grips the strip via elastically loaded fingers 112. 9. This load may be fluid or spring-based. Also good. By engaging the elastically loaded fingers 112 with the sloped sides of the strip. This provides the effect of smoothing wavelength fluctuations when supplying the strip.

The above-mentioned embodiments are suitable for ordinary progressive and processing equipment to minimize the amount of scrap. Provides strips that are shaped so that they can be used to make better use of material It is something.

Additionally, the present invention provides storage devices whose width is typically several times the part size, as described below. Modify the material feed to processing equipment to allow the use of strips to increase material It is also something that we try to utilize effectively.

Such a feature of the invention provides that the strip is provided in steps both axially and laterally. It is based on providing financial support. Figure 13 shows the strip 7 2 die detailed below. The supply device 67 can be supplied by a known supply unit 55, and the supply unit The kit is placed on a traverse carriage 68 that can be moved laterally on a sliding path 69. The installed configuration is shown. Coil 1 is supported on roller 71, and the roller is The strip is driven by means not shown to form a loop, which can be tilted. The arrangement is such that it can be supported on a flexible roller 70. The loop is horizontally (X-X”) shall be of sufficient size to produce the required displacement.

Figures 14 to 16 show a dual feeder. As shown in Figure 14, The two supply units 55 are connected to a sliding carriage that runs on upper and lower slides 73 and 74. 68.72 and these slides are mounted by means 75.76 such as a fluid ram. vertically movable so that supply always takes place in a given horizontal plane and in an inactive state. The unit is configured to be able to be displaced upwardly or downwardly from the plane.

The apparatus shown in FIG. 14 has a configuration in which material is supplied from a multiple coil 1 as shown in FIG. 15. It can be done. Also, as shown in Figure 16, the material flow from the lower coil is The rope may be guided squarely into the pit to reduce the height of the required installation space. .

Such a dual feed device can be used in combination with the processing equipment described below to control the stroke of the press. It is possible to make the most of it. The two strips should have their edges adjacent. It is supplied sequentially. Therefore the utilization between the edges of the strip is No space can be minimized.

Applicable applications of this X-Y supply device will be described below.

FIG. 17 shows a simple example, in which a pair of front guides 79 are attached to the die 67. and a single rear guide 80 instead of a total of four guides known in the art.

This device manufactures a motor electrode laminate using appropriately shaped punches 77 and 78. used for At the beginning of each cycle, if the strip 7 bar 2 is advanced by 1 pitch Y, Both are positioned on the right side. The strip is then punched out over its entire width. Punch repeatedly until complete and feed 1 pinch X to the left. to punch 78 The more punched out part is indicated by the reference numeral 83. The chopper blade 81 Cut out the clap to remove the lateral displacement of the strip and the resulting posterior guide. To prevent interference with 80. A single row of rotary dies is provided instead of the double die shown in the figure. The same utilization pattern can also be achieved by

That is, according to the above-mentioned X-Y supply device, a die with a relatively simple configuration can be used to It becomes possible to utilize trip materials to a high degree.

Figures 19 and 20 show other uses. In this example, the strip is It is necessary to pass the left side of the chair 67, so only the front guide 79 is provided. It is being Strip 2 is introduced diagonally to achieve optimal close-packed arrangement of components. Ru. Punching is performed in the following four steps.

(1) The pilot punch 85 and the slot punch 86 each A hole 93 and a first slot are formed.

(2) Form an X-shaped slot with the slot punch 87.

(3) Separate the component 91 using the punch 88.

(4) Use two M simple punches 84 to scrape the remaining material 92 as shown. or separate it into separate parts.

A bullet-shaped guide 90 is engaged with the pilot hole 93, and the scrap is separated by a pilot hole 93. The position is adjusted so that the rod hole 93 remains and can be engaged with the front guide 79 on the downstream side. Decide and do it. Reference numeral 82 indicates the strut formed by the previous feed operation in the X direction. The leading edge profile of the lip is represented.

Figure 18 shows how to manufacture delicate parts that are difficult to support on a stage. This figure shows a die used in combination with an X-Y feeding device. punch 106 As a result, opening details in the component 91 are formed. Outer diameter details are punched 107 and in this case a bridge piece 109 as an additional support for the part. leave. Finally, the parts are separated and cut by punch 108. interactive device In this case, both the approaching side and the separating side of the punch 107 are used for processing in both feeding directions. It can be made to function more actively. Generally air for side cutting Otherwise, it is common to waste scrap. The aforementioned punch is a metal strip In this case, a part of the desired profile is cut by two steps of feeding in the Y direction, and It functions in response to each pinch feed in the direction. In the example of FIG. The leading edge profile 82 is formed by a preceding feed in the X direction. It is not scrap, but forms part of a component.

Figure 21 shows the positioning of the strip 2 in both the X direction and the opposite X' force direction. This shows a device that can be used to remove water. A second set of scrap punches 94 is provided and the feed direction Either the punch 84 or the punch 94 is activated depending on the situation. Figure 22 shows multiple In combination with punch 95, scrap chopper 80 and 96, which can be rendered inoperable, are left and right. A similar bi-directional X-feed device is shown in FIG. Figure 23 shows how to use it in both supply directions. Uru 1st punch 97, punching punch 88.100, biloft punch 98 ．． 99 and each pair of scrap separating punches 84 and 94, depending on the feeding direction. This figure shows a bidirectional progressive processing device configured to disable one punch of each pair. It is something. Such bidirectional devices reduce overall lateral space and fly It can be used to reduce the time required for backing up.

Figure 24 shows a slightly different use of the X-Y supply device, mainly used for progressive processing. Along the axis (Y) to show a configuration that allows the use of more conventional dies. It is something.

Four guides 79,80 can be used, these are placed on the sides of the strip. They are placed widely apart to allow for displacement toward (X). This method is as shown Applicable for strips with profiled edges as described above, parallel It can also be applied to strips with edges.

The advantage of such a configuration is that a single strip coil can be used for a given capacitance The advantage is that it can be operated for three times as long as in the case of directional feeding. The same principle is , also holds true for dies with double or triple tools arranged parallel to the axial direction. Ru.

As explained above, the present invention applies to existing presses and iJT! Cut the material using standard tools. This will result in significantly more effective use of resources.

lN1fillaAIl^, oso, PCT/GB851003471mer ++arm drunkenness+^Hk++u+mm, PcT/GB85100ko4fu AN'NE )CTo n-INTERjJATrONAL 5EARCHREPORT ( -vDE-A-312729816106/82 NoneUS-A-3388 582None US-A-3107566None US-Ni-3100439None tJS-A-2765165None DE-C-876641None DE-A-271111721109/78 Non@CB-A-136710 718109/74 Non@INTERNATIONAL APPLICAT ION No. PCT/GB 135100347 (SA-10328)

Claims (22)

[Claims] 1. A method of cutting parts from a continuous strip of metal, comprising: Periodically repeating features in the strip can be defined between axial lines corresponding to successive part positions. forming the strips at intervals and cutting the strips so that the part locations are closely defined. In things; Wavelength adjustment may be performed just before or during cutting to adjust the spacing of the features on the strip. A cutting method characterized in that the longitudinal dimensions of the cutting means are made to correspond to each other. 2. In the method according to claim 1, the cutting means is a progressive press tool. , a cutting method characterized in that the dimension of the wavelength is the pitch between the successive stages. Law. 3. In the method according to claim 1 or 2, one or both sides of the continuous strip The side edges have a profile shape that closely confines the part location, said repetitive feature is formed by an edge of the profile shape. 4. In any of the above methods, the adjustment is performed by a temperature control pot on the strip. A cutting method characterized by: 5. In the method according to any one of claims 1 to 3, the adjustment is performed using a strip. A cutting method characterized in that the cutting is carried out by mechanical deformation of a strip. 6. In the method according to claim 3, the strip is cut by cutting the strip with a suitably shaped cutter wheel. The pattern of the supplied strip is formed by cutting the strip with a A cutting method characterized in that the diameter of the cutter wheel is controlled depending on the diameter of the cutter wheel. Law. 7. In the method according to claim 3, the strip is cut by a variable orientation shear. furthermore, the orientation changes depending on the parameters of the supplied strip. A cutting method characterized by controlling oxidation. 8. The method according to claim 1, wherein the features are printed or encoded by printing means. bossing and further printing means and depending on the parameters of the strip to be supplied. and the effective length of the feature. 9. The method of claim 6, 7 or 8, wherein the parameter is temperature. A cutting method characterized by: 10. In the apparatus used for carrying out the method of claim 6, an appropriate profile is provided. The shear wheel has a shape and is placed above and below the strip, and the shear wheel and means for changing the diameter of the rod. 11. 10. The apparatus of claim 10, wherein said means is thermal, mechanical or fluidic. A device characterized in that it is a means. 12. In the apparatus used for carrying out the method according to claim 7, the upper and lower parts of the strip are a plurality of pairs of shear rolls arranged at an angle with each roller inclined relative to the strip; The holder is supported in a holder that can be rotated about an axis that is A device characterized in that it comprises periodic actuation means for oscillating in the direction and in the lateral direction. Place. 13. A press tool with multiple press positions may require In a method of supplying strip material having a larger width, the strip is stepped in steps. feeding the strip in advance and positioning the strip widthwise between successive steps. A feeding method characterized by sequentially processing the strip in the width direction using each tool. 14. In the method according to claim 13, the forward feeding direction and the positioning width direction A feeding method characterized by mutually tilting the . 15. In the method according to claim 13 or 14, the press The progressive tools arranged in the width direction are used to sequentially perform punching operations. A supply method characterized by comprising: 16. In the apparatus used for carrying out the method of claim 13, a plurality of presses are provided. A press tool with a position and a reel stand holding a supply reel of metal strip and a supply means inserted between the reel stand means and the press tool. and the feeding means advances the strip forward stepwise and continuously. during which the strip is translated in the width direction by one or more steps. A device characterized by: 17. 17. The apparatus of claim 16, wherein a second metal strip corresponds to the second metal strip. two reel stand means, the feeding means is configured to feed the metal strip to one of the strips; While one strip is positioned widthwise, the other strip advances step by step and the edge of the strip is positioned adjacent the trailing edge of said one strip. A device characterized in that it is configured such that it can be supplied. 18. In the device according to claim 16 or 17, the press tool has a sliding guide. A die having upper and lower members movable toward and away from each other on the inner post. It also supports the progressive machining die, and its progressive machining direction. is the width direction. 19. 19. The apparatus of claim 18, wherein the upper and lower members are strips. Screw a single guide post on the feed side without being substantially wide relative to the width of the holding it apart from the sheet material under the action of lap chopper means. Featured device. 20. In the device according to claim 16, the upper and lower members include guide posts. the lateral extensions of the guide posts so that the lateral spacing of the guide posts is substantially greater than the width of the strip. A device characterized in that it is formed so that. 21. 19. The device of claim 18, wherein the die is forward with respect to the advancing direction. and a rear surface, which interact with its leading and trailing edges, respectively, during stepwise advancement of the part. characterized in that they cooperate to connect each other in the forward direction and in the width direction during the manufacture of the parts. device to do. 22. In the device according to any one of claims 18 to 21, the device includes fewer tools. The spider has at least one pair of selectively actuable dies or pilot punches; actuate one side for widthwise translational displacement in one direction, and the other side for widthwise translational displacement in the opposite direction. Device characterized in that it is actuated for translational displacement.