JP2006306092A - Device for manufacturing formed member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device which affords a low cost manufacturing of optionally formed members, especially those having a rear cut segment or a trenched cross sectional shape. <P>SOLUTION: A device 1 for manufacturing formed members made of a plasticizable material, which is equipped with an injection head 2 capable of supplying a plasticized material to a calendar 3, wherein the calendar 3 is equipped with a fixing section attached to a roller 5 for fixing the roller 5 on its working position. The working position bearing the roller 5 is particularly suited for a cross sectional shape, which the formed member is substantially formed into or which is plane parallel. The device 1 enables a second functional state, since the device 1 can manufacture almost optionally formed members, especially those of cross sectional shapes having rear cutting or narrow sections, at low cost. Under such state, the plasticized material arrives at a roller clearance defined by the roller 4 and an injection frame, since the roller 5 shifts to a position of rest and the injection frame bearing a formed material for injection is fixed to the working position by the fixing section. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is an apparatus determined to produce a profile made of a plasticizable material comprising a calender with two rollers and having an injection head capable of feeding the plasticized material into the roller gap. The present invention relates to an apparatus having an injection frame provided with an injection shape, and a roller capable of adjusting a work position for producing the shape between both rollers.

  An apparatus determined to produce a profile made of plasticizable material with a calender with two rollers and with an injection head capable of feeding plasticized material into the roller gap is expanded and plasticized In combination with an extruder for feeding the prepared material, it is known to experts by the name “roller head assembly”.

  The material, for example synthetic resin or plasticizable rubber, is plasticized in an extruder and then fed to the apparatus. Here the material reaches over the entire working width of the calendar, which is distributed directly in the roller gap. This direct supply avoids roll expansion and air entrapment. Therefore, the profile formed by the device has a thickness of up to 25 mm.

  The injection head, in particular formed as a wide injection head, consists of two members having a special flow profile in the material supply area in order to distribute the material uniformly over the entire working width.

  In this case, the introduction of such a device is particularly suitable for profiles with a rectangular cross-section, such as smooth plates and strips, as well as profiles without a rear cut, for example formed products. For this purpose, a replaceable profile sleeve is used for at least one roller as a negative shape with the desired cross-sectional shape.

  In this case, on the one hand, a high uniformity of material thickness is achieved over the entire band width which ensures air blowing freedom even at large thicknesses, and on the other hand an excellent homogeneity of the rolled profile is achieved. Therefore, production features form optimal assumptions for high value rubber products such as, for example, tire components, V belt bands, transport belts, container exteriors, lid plates, rough steel plates or roof foils.

  Another advantage of such a device is the excellent production accuracy besides high production efficiency.

  A device of this kind comprising a roll pair as well as an injection frame has already been described in DE 69110246. The rubber flowing out from the nozzle opening is formed by rolling between upper and lower rolls.

  Further, German Patent Application Publication No. 219389 (Patent Document 2) discloses a configuration of an arbitrary rolling mill in which a mechanical stand can be omitted because the stand member is composed of a bearing casing formed as a single roller bearing. The present invention relates to a configuration box system.

  In addition, DE 22 29 828 discloses a two-part embodiment of a rolled wide injection head, one half of which is mounted between the stands of a two-roller calender, The other half is fixed to a movable extruder. The calender is fitted with working means and presses the extruder against the other half to improve the sealing of the head half.

  Also known from the prior art is an apparatus called a rolling head. This type of apparatus consists of an injection head with a machined flow profile that substantially pre-distributes the material, a replaceable injection frame with a single roller and a different injection profile with the negative shape of the desired profile.

  In order to optimize the thickness of the profile, the rollers can be moved to a height, so that the spacing between the injection frame and the rollers is precisely adjusted.

  The expanded material is fed into the shaped rolling gap between the roller and the injection frame under low pressure and without auxiliary temperature loading. By rotating the roller, a pulling action is generated in the injection head and the rolling gap, and it acts on the roller surface whose temperature is adjusted by mixing adhesion.

  In this way, a complicated profile with a rear cut or constriction such as a groove in the longitudinal extension of the profile, for example a transverse groove and a long circulating tip, is also produced without problems. In this case, the profile approximately matches the geometry of the apex frame.

The essential advantages of such a rolling head device are that the tool cost for the tip frame is low, the tool change is simple and the change time is short, it can be adapted to complex profile shapes, especially channel profiles, and The overall investment cost for such a device is small.
German Patent No. 69110246 German Patent Application No. 219389 German Patent Application No. 2229828

  In view of these backgrounds, the object of the present invention is to create the possibility of producing almost any profile by means of a device, in particular a cross-sectional shape with a rear cut or groove, at a relatively low cost.

  This object is achieved according to the invention by an apparatus according to the features of claim 1, i.e. an apparatus in which the second working position for supplementarily producing the profile between the roller and the injection frame can be adjusted. The dependent claims relate to embodiments of the invention particularly suited for the purpose.

  According to this invention, the apparatus which can adjust the 2nd working position which manufactures the profile between a roller and a pointed frame auxiliary is provided. In this case, the invention makes it particularly economical to produce different profile shapes when used to form a profile with a pointed profile or roller that can be manufactured in a simple manner if necessary. Starting from the knowledge that it can be realized in a simple way. For this purpose, a roller or pointed profile is optionally brought to the respective working position and thereby used directly to produce the profile. At the same time, each roller in its rest position can be appropriately changed or replaced for the next different cross-sectional shape. The roller in its rest position can be provided with a roller sleeve for this purpose. According to the invention, this makes it possible to reduce the preparation time to a minimum as the necessary adaptation of the rollers for the next finishing process takes place during the manufacturing process.

  A particularly preferred embodiment of the invention is achieved in that the roller is implemented movably by drive means from the working position to its rest position. This allows the device to be operated as automatically as possible. For this purpose, the rollers can be arranged movably or pivotably in a guide, for example. In this case, a device known per se for achieving the approaching movement can be applied in a suitable manner.

  On the other hand, another modified embodiment in which a special result is expected can be achieved by the fact that the roller can be fixed in a separable manner by the fixing part. As a result, each roller in its rest position is completely separated from the device and can be used, for example, in other devices. Thereby, likewise, it is not necessary to deal with the appropriate replacement of the roller or the tip frame on site, but rather the replacement can be concentrated by means of a plurality of devices according to the invention, especially during operation. At the same time, the separable fixing part does not only allow the use of a given roller or a given roller type, but rather almost any other roller is required when a roller or part of a roller is exchangeably fixed to the device. Can be arranged according to

  Another aspect in which the device of the present invention can be expected to produce special results is that the roller and the tip frame are selectively movably arranged on the device so that the working position of the roller or the working position of the tip frame can be adjusted. Can be obtained. As a result, the rollers or the pointed frames can be moved and exchanged in common, so that the working position and the resting position are taken, respectively, so that the arrangement of the rollers or the pointed frames is substantially simplified.

  For this reason, in practice, when the third position can be adjusted in the device, the change mode is likewise shown as being particularly meaningful, in which both rollers are positioned in their respective rest positions. Thus, the profile can be manufactured with a separate pointed frame. At this position of the roller, widely spaced at its respective rest position, it can be pushed out by the injection head. This achieves a flexible loading of the device for various usage purposes.

  In this case, the roller can be used to adjust the thickness of the profile, so that on the one hand the desired gap between the defined profile shapes can be adjusted and on the other hand the rest position of the roller can be adjusted.

  In order to operate the apparatus, it is further necessary that at least one of the rollers can be driven to rotate freely. In this case, the drive is carried out in particular so that the drive output is transmitted exclusively by the respective rollers at the working position. Thus, unintentional rotation of the roller is eliminated at its rest position.

  Different compensation possibilities or a combination of these can be used to compensate for the elastic bending of the roller, which led to the increased material thickness at the center of the belt, under the condition that the device is relatively inclined to adjust the roller gradient or reverse bending. Or at least one roller has a bend.

  The present invention allows various embodiments. In order to further embody the basic principles of the invention, it is illustrated in the drawings and described next.

  FIG. 1 shows an apparatus 1 according to the invention for producing a profile (not shown) made of a plasticizable material in a cut side view. This apparatus 1 has an injection head 2 attached to an extruder (not shown), and a calendar 3 having two rollers 4 and 5 in which the material plasticized by the injection head closes one roller gap 13. Can supply. In this case, the injection head 2 includes an upper member 6a and a lower member 6b, and the lower member is connected to a fixed member 7, and at this time, at least the upper member 6a or the lower member 6b is pivotably movable. It is connected with.

  FIG. 2 shows a second functional state which is different from that of the device 1 and the roller 5 is moved to the rest position. For this purpose, the injection frame 10 provided with the injection shape member is arranged at the working position by the fixing portion 8, and the roller gap 11 is limited with respect to the roller 4. Therefore, the simple structural shape of the injection frame 10 allows a quick and reasonable fit to produce almost any shape shape, which shape shape can have grooves or grooves. In this case, the roller 4 can be fed to adjust the desired target dimension in the direction of the injection frame 10. The roller 5 can be appropriately replaced for the next profile shape in its rest position.

  In addition, FIG. 3 shows another functional state of the apparatus 1, in which both rollers 4, 5 are moved to their respective rest positions, and another ejection frame 12 is arranged on the ejection head 2 by the fixing part 8. Has been. In this position, it can be extruded by the injection head 2, so that a flexible loading of the device 1 can be realized for various purposes without having to adopt changes in the device 1.

1 shows an apparatus according to the invention with two rollers in each working position. Fig. 2 shows the apparatus shown in Fig. 1 with an injection frame in the working position. Figure 2 shows the device shown in Figure 1 with two rollers in each rest position.

Explanation of symbols

1. . . . . Apparatus 2. . . . . 2. Injection head . . . . calendar
4,5. . . . Roller 6a. . . . . Upper member 6b. . . . . Lower member 7. . . . . Fixing member 8. . . . . Fixed part 10. . . . . Injection frame 11. . . . . Roller gap 12. . . . . Injection frame 13. . . . . Roller gap

Claims (10)

  Produces a profile made of plasticizable material with a calender (3) with two rollers (4, 5) and with an injection head (2) which can supply plasticized material to the roller gap (13) The apparatus (1) determined to do, the apparatus (1) has an injection frame provided with an injection shape, and the roller (5) produces the shape between both rollers (4, 5). A device capable of adjusting a work position to be adjusted, wherein a second work position for producing a profile between the roller (4) and the injection frame (10) can be supplementarily adjusted.   2. A device according to claim 1, characterized in that the roller (5) is moved from the working position to its rest position by driving means.   3. A device according to claim 1, wherein the roller (5) can be fixed to the working position in a separable manner by a fixing part.   4. The device according to claim 1, wherein the roller (5) or part of the roller (5) is fixed to the device (1) in a replaceable manner.   The roller (5) and the injection frame (10) are disposed in the apparatus (1) so as to be movable in common so that the work position of the roller (5) or the work position of the injection frame (10) can be selectively adjusted. An apparatus according to any one of claims 1 to 4, characterized in that   2. The device (1) according to claim 1, characterized in that both rollers (4, 5) are positioned in their respective rest positions and a third position in which the profile can be adjusted by a separate injection frame (12) is adjustable. 6. The apparatus according to any one of 1 to 5.   7. A device according to any one of the preceding claims, characterized in that the roller (4) can be used to adjust the thickness of the profile.   8. A device according to claim 1, wherein at least one of the rollers (4, 5) can be driven to rotate.   9. The device according to claim 1, wherein in the device (1) the gradient or reverse bending of the rollers (4, 5) can be adjusted relative to one another.   10. A device according to any one of the preceding claims, characterized in that at least one of the rollers (4, 5) has a bend.

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