RU2069592C1 - Apparatus for manufacture of rolled sections in cold state - Google Patents

Abstract

FIELD: rolled product manufacture. SUBSTANCE: apparatus for producing in cold state separate final rolled sections has multiple-section members produced by hot rolling, extrusion and drawing. Each multiple-section member has two finishing rolling profiles (corners with equal or unequal sides, T-shaped profiles, iron strips etc), positioned one adjacent to the other and connected along their edges. Rolled profiles are separated by web. Multiple-profile member is disposed in predetermined position and web is removed from profiles. Edges of finished rolled profiles faced toward web are subjected to gaging and strengthening. Apparatus has at least one squeezing mechanism, at least one separating mechanism and at least one gaging mechanism, with above mentioned mechanisms being positioned in succession. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 12 cl, 15 dwg

Description

 The invention relates to devices for the production in the cold state of individual finished machined rolling profiles from multidisciplinary elements.

 A multidisciplinary element is obtained by hot rolling or by an extrusion / drawing process followed by cooling.

 The multidisciplinary element consists of several practically finished finishing rolling profiles located side by side and interconnected in the longitudinal direction along at least one edge.

 The rolling profiles are predominantly in the form of angles having identical and / or unequal sides.

 The proposed method and device is advantageously used for the production of Z-shaped rolling profiles, T-shaped rolling profiles, strip iron, etc. from a separate multidisciplinary element that contains them.

 Currently, methods are known that use a hot rolling mill for hot rolling at the same time of an individual multi-profile element containing a plurality of rolling profiles located side by side and interconnected in the longitudinal direction, for subsequent production while still hot by separating the individual rolling profiles.

 Japanese Patent No. 54-33251 describes separate multi-profile elements that are made up of a plurality of corners having equal sides, located side by side and interconnected in the longitudinal direction.

 British Patent No. 306 of 1910 describes individual multidisciplinary elements consisting of a plurality of round rods arranged side by side and interconnected in the longitudinal direction.

 U.S. Patent No. 1977,285 describes individual multidisciplinary elements consisting of a plurality of corners having the same sides, or of a plurality of rods having a square section, or of a plurality of channel rolling sections interconnected.

 Japanese Patent No. 60-6202 describes individual multidisciplinary elements consisting of a plurality of corners having different sides and interconnected in the longitudinal direction.

 In British patent N 1355144 described individual multidisciplinary elements consisting of two T-shaped rolling profiles interconnected by a central jumper.

 All of these individual multidisciplinary elements are usually produced with a longitudinally extending connecting jumper between the individual rolling profiles. The individual rolling profiles constituting the multidisciplinary element must be divided and then they must be given the necessary shape and also they must be straightened in a cold state so that they take their final shape.

 Currently, devices are not known that separate and cleanly process a separate supply rolling profile for the production of individual finished machined rolling profiles from a separate multidisciplinary element, as described in the description of this invention below.

 The aim of the invention is to develop a method and device for cold separation and subsequent almost simultaneous finishing of individual rolling profiles constituting a separate multidisciplinary element.

 The invention is directed to the production by cold separation from a cold multidisciplinary element of strip iron, corners, L-shaped rolling profiles, T-shaped rolling profiles, V-shaped rolling profiles and also similar rolling profiles and rolling profiles that can be equated to them.

 The case of corners is shown below, but the invention can be used in the manufacture of a wide range of rolling profiles as described above.

 The proposed device can be located downstream from the installation, which receive in a hot state a separate multidisciplinary element consisting of many separate rolling profiles connected to each other in the longitudinal direction, or can be placed at some distance from this installation.

 If the proposed device is located downstream from the installation, where a separate multi-profile element is produced in a hot state, then it is located mainly downstream from the cooling plate and directly behind the exhaust mechanism, but includes a straight mill and dimensional shears directly downstream .

 Alternatively, the proposed device is located downstream from the cooling plate, the exhaust mechanism and the correct mill are located between the cooling plate and the proposed device, and shears that perform dimensional cutting are placed downstream from the proposed device.

 A cold separate multidisciplinary element tends to bend or deform, especially in the area of the leading end.

 For this reason, the proposed device includes a guide mechanism at the top that performs the functions of positioning, guiding, and pre-dressing an incoming separate multidisciplinary element.

 As an alternative, a preliminary dressing mechanism is provided instead of or in conjunction with a guide mechanism.

 The proposed device includes directly downstream from the guide mechanism at least one exhaust mechanism that performs the function of feeding and correspondingly positioning a separate multi-profile element for performing subsequent operations.

 Directly downstream from the exhaust mechanism, at least one first separation mechanism is provided, which performs the function of dividing an individual multidisciplinary element into its individual rolling sections.

 Alternatively, a guide mechanism and then a second other separation mechanism and finally another guide mechanism are located downstream from the first separation mechanism.

 After completion of the above operation of separating the individual rolling profiles from a separate multidisciplinary element, burrs and / or pieces of the connecting bridge may remain at the edges of these rolling profiles. For this reason, the proposed device includes downstream from the separation mechanism at least one calibrating mechanism that performs the functions of re-calibration and finishing of the rolled sections.

 Downstream from the last mentioned mechanism may also be a mechanism for editing individual rolling profiles leaving the gauge mechanism.

 As an alternative, the editing function is assigned to another special mechanism of a known type, which is able to straighten a lot of completely processed rolling profiles at the same time.

 The separation mechanism performs the function of separation by longitudinally cutting the junction points of the connecting jumpers, this cutting is carried out using the upper and lower rotating knives. The cutting edges of the rotating knives act on the connecting jumper in order to separate the various rolling profiles and at the same time separate the connecting jumper.

 As an alternative, the separation mechanism performs the operation of separating the individual rolling profiles from the connecting jumper by rotating knives in two successive stages. In the first stage, two knives act on one side of the connecting jumper to cut the connecting jumper along one side only near the edge of a separate rolling profile, while in the second stage the other two knives act on the other side of the connecting jumper.

 A separating mechanism is associated with a mechanism for separating and collecting waste, interacting with a suitable means of cutting and removing waste, which may be, for example, of a magnetic type.

 Alternatively, at least one auxiliary deburring mechanism is provided that is equipped with stationary calibrating tools in addition to or instead of the calibrating mechanism to better shape the individual divided rolling profiles.

 In another embodiment, the auxiliary deburring mechanism is equipped with rotating tools.

 According to yet another embodiment, with respect to a separation mechanism including rotating knives, the device according to the invention is provided with a station for quick replacement of the rotating knife assembly. This quick change station is preferably located on the side of the separation mechanism and can be of the type that is replaced by a sliding box or turntable or other known type.

 According to another embodiment, the device according to the invention comprises pairs of separation mechanisms, so that at least one separation mechanism functions in the event of wear of another mechanism or during the replacement of knives of one of the separation mechanisms.

 According to another embodiment, the exhaust mechanism is also provided with a replacement station located mainly on the side for quick replacement of the exhaust mechanism.

 According to another embodiment, the device according to the invention comprises at least two exhaust mechanisms, so that at least one exhaust mechanism is always in working condition.

 According to a further embodiment, the calibrating mechanism also comprises a quick change station for calibrating tools.

 According to another embodiment, mechanical scissors are located downstream of the gauge mechanism for dimensionally cutting the individual rolling profiles thus obtained.

 By means of the proposed device, it is possible to provide high performance with great time savings and simplification of the entire device.

 In FIG. 1, a shows a side view of the first embodiment of the proposed device.

 Figure 1, b shows a top view of the device shown in figa.

 In FIG. 2, a side view of a second embodiment of the proposed device is shown.

 Figure 2, b shows a variant of the device shown in figa.

 Figure 3 shows the exhaust mechanism of the proposed device with a partial section.

 In FIG. 4 shows a separation mechanism of the proposed device with a partial section.

 In FIG. 5, a part of rotating knives with two cutting edges of the separation mechanism shown in FIG. 4 is shown.

 Figure 5, b and c shows variants of the device shown in figure 5, a.

 Figure 6 shows the calibrating mechanism of the proposed device with a partial cutout.

 7 and 8 show a variant of the separation mechanism with a partial cutaway of the proposed device.

 In FIG. 9 is a front view of a deburring knife interacting with the separation mechanism shown in FIG.

 10, a and b schematically show auxiliary mechanisms for deburring.

 In FIG. 11 shows a variant of the calibrating mechanism shown in FIG. 6.

 On Fig shows part of another variant of the calibrating mechanism shown in Fig.6.

 On Fig and 14 shows a top view of two possible variants of the device shown in Fig.1.

 On Fig shows a diagram of a variant of the proposed device.

 Numeral 10 denotes the proposed device for the production of rolling profiles, in this case, individual finished machined corners 11, from cold individual multidisciplinary elements 12.

 As indicated above, the cold separate multidisciplinary element 12 consists of a plurality of adjacent rolling profiles 11, in this case, corners with the same sides, connected to each other in the longitudinal direction by means of a bridge 21 having a thickness of 0.5 to 1.0 mm.

 Hot separate multi-element 12, leaving the rolling mill (not shown), is cooled and served for storage and then delivered to the proposed device 10.

 According to a first embodiment of the invention (FIG. 1), the device 10 comprises an exhaust and guide mechanism 13 on the upstream side, which sets into position and directs the incoming separate multi-profile element 12 into the exhaust mechanism 36.

 In addition, the exhaust and guide mechanism 13 performs the function of pre-dressing a separate multi-profile element 12.

 Figure 1, a shows the exhaust and guide mechanism 13, which in this example consists of holding rollers 39, capable of reciprocating movement at a distance and approximation, and the upper roller 39 is driven by cylinder-piston drives 17 or other known system.

 First, the rollers 39 are removed to facilitate the insertion of a separate multi-element 12 into the device 10. Then, the rollers 39 are brought closer to facilitate installation and insertion of a separate multi-element 12 into the exhaust mechanism 36.

 In a second embodiment of the invention, the device 10 comprises only one exhaust mechanism 36, which also performs the functions of directing and pre-dressing the incoming individual multi-profile element 12 (FIG. 2).

 In FIG. 3 shows (relating to the device of FIG. 2) an exhaust mechanism 36 suitable for a separate multi-profile element 12, consisting, for example, but not limited to 32 corners 11 having the same sides.

 This exhaust mechanism 36 comprises upper holding rolls 14a and lower holding rolls 14b, the shape of which is mated, respectively, with the upper surface and lower surface of the individual multi-profile element 12 in order to simultaneously hold the element 12 set to the desired position and edit it.

 The lower holding rolls 14b are suitably rotated about the axis 15 to ensure the correct delivery of the individual multi-element 12.

 In this example, suitable means 18 are provided for adjusting the distance between the centers of the rolls 14, including a screw with a screw thread cooperating with the shaft 19 of the upper holding rolls 14a. With this tool 18, the distance between the centers of the upper holding rolls 14a and the lower holding rolls 14b is adjusted depending on the thickness of the individual multi-element 12.

 In FIG. 4, a separation mechanism 20 is located immediately downstream of the exhaust mechanism 36. The separation mechanism 20 may be coupled to a rotary knife mechanism or a metal waste separation mechanism 50 that separates a waste jumper 21 connecting the rolling profiles 11 for waste. The mechanism 50 may interact with a bag or pit 51 for collecting waste (figure 1).

 A separate multidisciplinary element 12 is divided in the separation mechanism 20 into separate corners 11 by cutting the connecting jumper 21. The separation operation consists in cutting the connecting jumper 21 with the upper 22 and lower 23 rotating knives. These knives 22 and 23 are rigidly attached to the relatively upper 24a and lower 24b positioning rolls having a shape mated to a separate multi-profile element 12. The positioning rolls 12a and 24b are driven by a drive means (not shown) that is not important to achieve the purpose of the invention.

 In FIG. 5, a part of the device shown in FIG. 4 is shown, namely, the upper and lower rotating knives 23, 23 interacting with individual corners 11 at the time of the cutting operation. The lower knives 23 should have a shape that mates with the curved lower end of the sides of a separate corner 11.

 According to the embodiment of FIG. 5, b, the separation mechanism 20 comprises upper 122 and lower 123 rotating knives that do not have a special shape and therefore are easier to manufacture. In this case, waste disposal in the form of parts of the jumper 21 is carried out from above, which causes some difficulties.

 According to another embodiment shown in FIG. 5c, which is used when a separate multi-profile element 12 is processed from the top from the convex side downwards, in contrast to the situations discussed above, the separation mechanism 20 comprises upper 222 and lower 223 rotating knives set so as to ensure the ability to remove waste from below.

 In the separation methods described above, the jumper 21 is kept intact along at least the first corner, thereby greatly facilitating waste disposal operations, and then is separated as waste by the metal waste separation mechanism 50 so that metal waste can be subsequently used.

 In this example, the metal waste removal operation (FIG. 9) is carried out with a knife 25 scraping off small metal shavings, consisting of a blade 26 that is inserted between two lower rotating knives 23 in order to remove the separated connecting jumper 21 and transfer it to a suitable metal waste separation mechanism fifty.

 The metal waste separation mechanism 50 may consist, for example, of suitable metal scissors capable of cutting the connecting jumpers 21 into small pieces in order to facilitate removal of the jumpers 21 and accompanying them to the waste bag 51.

 In this case, the blade 26 is held by struts 23, rigidly mounted on the frame of the proposed device 10 (Fig.4 and 9).

 The blade 26 includes means 27 for adjusting its inclination, which allows you to adjust its inclination as needed.

 As a result of the separation of the corner 11 from the individual multidisciplinary element 12, burrs and / or pieces of the connecting bridge usually remain on the edges of the corner. In order to remove them and give the edges of the corners 11 a corresponding shape, the proposed device 10 comprises a calibrating mechanism 29 located directly downstream of the separation mechanism 20, in which the corners 11 are given a corresponding shape (Fig. 6).

 The calibrating mechanism 29 includes upper 30a and lower 30b calibrating / straightening rolls having a corresponding shape for interaction with the surface of the corners 11.

 The calibrating mechanism 29 may also include deburring rolls 31, which in this example are on the same axis as the lower calibrating rim rolls 30b. Rolls 31 remove any burrs and restore a sharp edge between the upper lateral side of corner 11 and the curved end of its sides.

 The rolls 31 and rolls 30b can also be combined as a whole and can be rotated around their own axis 32 by suitable drive means (not shown).

 According to the presented embodiment, the rolls 31 are connected to the drives (Fig. 11), which, by acting on the frame 47 on which the rolls 31 are supported, can adjust the position of these tools 42 (Fig. 12), which scrape the cutting area from above and from below and thus effectively remove burrs and uneven areas that remain on the edges of corners 11 after cutting.

 The fixed tools 42 are conveniently connected to a regulating means 46 suitable for making necessary adjustments to the position of the tools 42 with respect to the angles 11. These regulating means 46 with respect to the angles 11. These adjusting means 46 are manually actuated or, alternatively, are coupled to motors which not shown in the figures, but make it possible to automatically actuate the regulatory means 46.

 According to the embodiment of FIG. 2 b, the device 10 comprises a separation mechanism 120 located downstream of the exhaust mechanism 36 and upstream of the calibrating mechanism 29.

 The separation mechanism 120 consists of two interacting nodes, one of which 120a is located upstream and the second 120b downstream and allows the connection jumper 21 to be cut in two successive stages by rotating knives 34 having one cutting edge.

 In the assembly 120a (Fig. 7), the rotary knives 34 act, 34a from above and 34b from below, on the jumper 21, in this example, on one edge of the side corner 11, thereby leaving the jumper 21 attached to the central corner 11.

 Other rotating knives 34, 34c from above and 34d from below interact with the downstream assembly 120b (FIG. 8). These rotating knives 34c, 34d cut a jumper at the edges on which it is still held, namely, the edges of the central corner 11 in this example.

 The rotary knives 34 are rigidly attached to the upper 35a, 35c and lower 35b, 35d positioning rolls having such a shape that they mate with a separate multi-profile element 12. These rollers 35a, 35b, 35c, 35d are driven by drives not shown in the figures and not essential to the attainment of the object of the invention.

 The separation mechanism 120 also makes it easy to handle waste, as the jumper 21 remains intact.

 According to another embodiment, schematically shown in FIG. 15, a first exhaust and guide mechanism 49a is located downstream from the first separation or cutting mechanism 120a, while a second exhaust and guide mechanism 49b is located downstream of the second separation or cutting mechanism 120b. .

 In this case, a second exhaust mechanism 36b and a correct mechanism 116 are arranged downstream of the second exhaust and guide mechanism 49b and the calibrating mechanism 29.

 As the exhaust mechanism 36, the separation mechanism 20, 120 and the calibrating mechanism 29 also include bolt means 18, which serves to adjust the distance, respectively, between the rotating knives 22 23, 122 123, 222 223, 34a 34b and 34c 34d and between the positioning rollers 35a, 35b, 35c, 35d and between the gauge / leveling rolls 30a, 30b.

 According to a variant, which is not shown, two or more exhaust mechanisms 36 can be provided so that a more efficient preliminary dressing is achieved. This option is particularly suitable when the rolling profiles are curved and / or deformed.

 The presence of two or more exhaust mechanisms 36 facilitates replacement when one exhaust mechanism 36 cannot be used and must be replaced.

 According to another embodiment, an auxiliary deburring mechanism 37 is provided, as well as an additional or instead calibrating mechanism 29 to achieve better formation of the individual rolling profiles 11. In this case (Fig. 10), the auxiliary mechanism 37 includes inclined deburring rolls 38, each of which interacts with the edge of the corner 11 in order to form a sharp edge in the place where the connecting jumper 21 was previously attached.

 In particular, figure 10a shows two inclined rolls 38 acting on the edges of the central corner 11, while figure 10b shows two inclined rolls 38 staggered that act on the divided edges of the side corners eleven.

 Advantageously, the proposed device 10 is equipped with a station 40 for replacing the separation mechanism 20, 120, thereby it is possible to quickly replace the rotary knives with one cutting edge 34a, 34b, 34c, 34d or with two cutting edges 22, 23, 122, 123, 222, 223 the separation mechanism 20, 120 when these knives are worn.

In FIG. 1b, a rotary type replacement station 40 is shown. When the knives are worn, the separation mechanism 20 is brought into position 20a, while by turning 180 ^{° of the} platform 41 of station 40, another separation mechanism having the knives already replaced and initially located in position 20b is brought into position 20a.

 According to another embodiment, which is not shown, the calibrating mechanism 29 also has a similar exchange station for quick replacement of calibrating tools.

 In the first embodiment shown in FIG. 1, the correct mechanism 16 and a mechanism of a known type for dimensional mechanical cutting 33 are placed downstream of the calibrating mechanism.

 In FIG. 2 shows a second embodiment of the invention in which the device 10 includes only one exhaust mechanism 36, one separation mechanism 20 (FIG. 2, a) or 120 (FIG. 2, b), and one calibrating mechanism 29.

 According to the variant shown in Fig. 13, the device 10 is located on a straight line with a rolling mill, which is not shown in the figure, and the cooling plate 44 and the exhaust mechanism 45, the roller conveyor in this example are located between the rolling mill and the device 10. The straightening mill 16 and mechanical shears for dimensional cutting are located directly downstream of the device 10.

 According to another embodiment shown in FIG. 14, the device 10 is located downstream of the cooling plate 44 and the exhaust mechanism 45 and between the straightening mill 16 and the shears 33 for dimensional cutting.

 According to the embodiments of the invention shown in FIGS. 13 and 14, devices 10 can be moved, for example, to crane tracks 53 and could be replaced with another device using towing means 52, for example, with magnetic rail tracks, if the multi-profile elements 12 must not be cut when leaving the cooling plate 44.

Claims (12)

 1. A device for the manufacture of cold rolled profiles, containing sequentially installed exhaust means for processing a multidisciplinary workpiece, and mechanisms for the longitudinal separation of the workpiece with at least one mechanism for the final processing of the separation surfaces.  2. The device according to claim 1, characterized in that a guide mechanism is installed in front of the exhaust means.  3. The device according to claim 1 or 2, characterized in that the crimping means comprise a finishing two-roll stand, in which the rolls are mounted on a common axis in an amount of at least equal to the number of profiles in the multi-profile workpiece.  4. The device according to any one of paragraphs.1 to 3, characterized in that the longitudinal placement mechanism is made in the form of a two-roll stand, in which the rolls are mounted on a common axis, and split knives are mounted between them.  5. The device according to any one of claims 1 to 4, characterized in that it is equipped with a mechanism for removing connecting jumper profiles located behind the separation mechanism.  6. A device according to any one of claims 1 to 5, characterized in that it is provided with a halt mechanism located behind the final processing mechanism of the separation surfaces.  7. The device according to any one of claims 1 to 6, characterized in that the final processing mechanism of the separation surfaces is made in the form of disk rolls.  8. The device according to any one of paragraphs.1 to 6, characterized in that the mechanism of the final processing of the separation surfaces is made in the form of adjustable interchangeable wedge-shaped tools.  9. The device according to any one of claims 1 to 8, characterized in that it is equipped with a quick change tool station located on the side of the final processing mechanism of the separation surfaces.  10. The device according to any one of paragraphs.1 to 8, characterized in that it is equipped with a quick change tool station located on the side of the separation mechanism.  11. The device according to any one of paragraphs. 1 to 10, characterized in that when using in the flow of a hot multidisciplinary initial billet, means for cooling the initial billet are installed in front of it.  12. The device according to any one of claims 1 to 11, characterized in that the correct mechanism is installed in front of it.

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