JPS5861998A - Double belt press - 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 The present invention comprises two rotating belt sides between which the material to be pressed is accommodated, and holes provided in the upper and F portions of the belt sections facing each other on both belt sides. A housing comprising a press body to which a heating press plate is respectively fixed, and a plurality of pressing rolls fixedly provided to the press bodies for transmitting the pressure generated by the press bodies to the press material. Hasushicho 1 O-Y device included 2
iN to electric belt press.

It is known to provide fixed pressure rolls between the pressure plate and the belt edge for transmitting the press pressure to the material to be pressed (DE 2853285 A1). Compared to a similarly known structure in which a rotating suppression roll chain is guided in a circular manner between the suppression plate and the belt side, supporting the pressure roll fixedly provided by the suppression plate is more complicated. The advantage arises that tensions and deflections ffr can be eliminated.

In the above-mentioned known structure for fixed support of the pressure rolls, longitudinally extending lateral strips are provided on both sides of the pressure plate, viewed in the direction of belt running, and each of these strips serves up to V for a series of pressure rolls. The shafts are aligned and supported.

Furthermore, there are in each case two pressure rolls with rolling bodies mounted on them, which are likewise formed by strip-supported rolls.

In this type of pressure roll support method, all the pressure rolls and shafts are held in one strip, so that in case of replacement of a possibly damaged row V, the entire device must be disassembled, which is very cumbersome. A serious defect will occur.

Furthermore, in order to obtain a uniform pressing force 1 against the pressure roll regardless of the width of the pressure roll, the roller sleeve support provided on the pressure roll must transmit pressure reliably. Providing this additional rolling bearing is also cumbersome. Furthermore, the plurality of rolling bearings and the pressure rolls I7 electrically connect each other and create a relatively large amount of free space, which acts as an insulating layer for heat transfer, so that the total thermal effect of the material being pressed is When pressing is necessary, there is a drawback in that only very poor heat transfer between the press plate, which is heated at that time, and the material to be pressed is possible. In order to achieve the necessary temperature increase in the pressing area for the material to be pressed, the pressing plate must then be heated very strongly.

It is an object of the present invention that the pressing rolls are considerably easier to repair, i.e. when the suppression rolls are damaged, they can be easily replaced individually. The object of the present invention is to provide a 2t belt press with a stationary and retractable roll arrangement that allows a fairly good heat transfer to the belt press.

The present invention provides that the suppression plates are formed at least in part by support strips arranged side by side and extending transversely to the belt running direction, the support strips being individually removable; This is because the suppression roll is supported.

By providing the pressure rolls with support strips that extend transversely to the belt running direction and can be retracted individually, if the pressure rolls supported by the support strips are damaged, the simple It is a replacement. The very good heat transfer between the temperature received by the support strip and the pressure roll due to the fact that these rolls are supported by the support strip results in =T&, so that the material to be pressed then also changes accordingly. Temperature can be raised effectively.

It has been found that in order to be able to generate the same temperature in the material being pressed, considerably less energy is required for heating up than is possible with known constructions.

In a particularly preferred embodiment of the invention, the pressure plate is formed entirely by support strips, each support strip being fastened to the press body. Since this method of fixing the support strips can take place via screws, an individual support strip can be replaced very easily. In a further embodiment of the invention, a series of pressure rows each extending in the belt running direction IC4m1 per support strip can be provided.
A provision is made in L/1 to allow a fully independent replacement of a damaged suppression roll OT capability.

In a preferred configuration of the present invention, #- is held low by a common insertion axis of the valley support strip. Therefore, no own axis is required for each individual roll, since the rolls are stable and can be easily fixed. On the side of each support strip facing towards the belt side, a recess is provided which corresponds individually to the pressure rolls and into which the pressure rolls A/ are inserted. The four parts are held in such a way as to ensure the smooth movement of the pressure rolls, since they are outside the end surface formed by the support strips with which the pressure rolls are lined up in their peripheral parts. - The rolls are separated from each other by support bearings in valley support strips, which support bearings have recesses or holes for mounting the insertion axles.

By separating the individual rolls, the rolls are simply fixed in their position with respect to each other with the insertion shafts, so that axial movement of the insertion shafts of these rolls is disabled. The insertion shaft itself is clamped in its end region by a supporting piece and an ldl lid which can be screwed to 0 T, so that a reliable fixation of the insertion shaft is possible.

During replacement, these lids are removed and the insertion shafts can be lifted out of the respective support bearings, so that the pressure rolls are also freed. From then on, the pressure roll is assembled in the opposite direction.

The four parts are arranged differently in the support strips arranged side by side. Therefore, the area in which the pressure rolls of the arranged support strips act is charged, so that on each side, the pressure force is transmitted over the entire opposite surface of the belt at 0 Tffi.

It is reasonable to support the pressure rolls on a common shaft via needle bearings. If the support strip completely replaces the pressure plate, the support strip is heated. The individual canals of the canals are troughed at the edges,
It is coupled via a flange member or the like to a common heating or cooling liquid circuit, for example a first part of the support piece forming a heating liquid circuit. The heating zone ends with the last supporting strip connected to this conduit, and the supporting strip located next to it in the direction of belt running is connected to the cooling circuit with a further supporting strip. , there is no interval between heating and cooling zones. Therefore, no pressure-free zones occur in the pressed material during the pressing process. The direct heating of the support strip provides a direct heating of the pressure rolls and thus a very good heat transfer to the material to be pressed. A transverse line is passed from the line flowing with hot oil to the lubrication point. At the same time, the above conduit can also be used as a lubricant supply and device.

The closer this conduit extends to the rolls in the area of the pressure row V, the better the heating or cooling effect can be achieved. In a particularly advantageous embodiment of the invention, the conduit is provided at the insertion axis of the suppression row V. At that time, insert this shaft #
i. It has 1filI linear hole for sending refrigerant or heating liquid. Because those pressing rolls directly fit and enclose the insertion shaft.

This results in a particularly good heat transfer to the pressure roll and thus to the press material without any necessary losses. Their insertion axis is 7. in its terminal range. It is connected to the general pipe line at the flange part, etc. It is also possible to provide the insertion shaft with an electric heating device or to construct it as an electric heating element.

Therefore, assembly is simplified and high temperatures can be achieved.

The present invention will be described in detail below with reference to embodiments shown in the accompanying drawings.

In the fI1 diagram, a two-direction belt press with a roll device capable of discontinuing OI is shown as 1, and in this press, the two belt sides 3a and 3b are rotated by the rotation roller v.
@steel bell guided around 2) 3a and 3b are
17t of material to be pressed between them is accommodated. The press pressure is transmitted via the press body 5 to the suppression plates 4, which plates are formed of individual supporting strips 4g arranged side by side in the nine rows shown, the strips extending in the direction of belt running. A plurality of pressure rolls 7 are supported on the strips extending perpendicularly to the surface. The support strips 4a are individually screwed together with their suppressors 5, as will be explained in more detail below, so that one or more of the rolls 7 are damaged. If so, it can be easily replaced. Good heat transfer to the material 17 to be pressed is made possible by the fact that the pressure roll 7 is supported by a support strip 4a which is capable of heating over time.

As can be seen from the section through the support strips shown in FIG. 2, these support strips d are held on the suppression body 5 via screws 8. At the end of the support strip facing towards the belt,
A plurality of recesses s18 are provided, and these recesses support the support bearing 1.
They are separated from each other by o1. A pressure roll 7 is inserted into each of these recesses 18, respectively. The pressure rolls are then held on a common insertion shaft 13 via needle bearings 9, which common shaft passes through the several holes t in a straight line of the support bearing 10 and is inserted in the area of the edges. .

Therefore, there are a plurality of 11 insertion shafts! Since it is supported in place, this axis cannot bend. The distance of the insertion axis from the edge 19 of the support strip facing the pelt is
Edge 1 of the support strip 4a, whose rolls are oriented in the direction of a belt (not shown) according to the diameter of f o -v
Since it is determined to protrude above 9, reliable rolling is guaranteed. In their edge area a shaft cover 12 is provided.

These violets are held by the support strip via the t2 screws 14 and partially surround the insertion shaft 131, so that this shaft is thus fixed. In order to prevent friction of the pressure rolls 7 on the walls of the recesses 18, spacer disks 11 are inserted between the pressure rolls 7 and the walls, so that the pressure rolls cannot move in one axis. number of rolls of supporting strips,
The length of the supporting strips as well as their diameter can likewise be varied as required in each case depending on the desired product.

4@4 In FIG. 4, three support strips 4a are shown which are arranged side by side, and these strips are each connected to the suppressor 5L via a screw 8! ; combined.

Each support strip then supports a series of pressure holes. The support strips may be closely spaced so that there is no intermediate space between the strips that is sufficient for bending.

! As can be seen from FIGS. 162 and 3, the support strip 4a' has a conduit 15 which must be placed as close as possible to the pressure roll 7.

The individual conduits of these support strips 4m are connected to the circuit flowing through them, as shown in FIG.
This can be done using the #″i flange portion 16.

The heating of the support strip is directly heated in the region of the mounting of the suppression row V, since, for example, hot oil is passed through the pipes as a heating medium. Therefore, pressure row I
v#-i, supporting strips 1ii-a are accommodated, thus ensuring optimal heat transfer. The energy consumption for heating can therefore be reduced considerably. The support strip 4a is
nine and one half of the length of the device are connected to a first circuit and in another half to a second circuit, the first circuit being used for heating and the second circuit being A cooling effect can be performed. Since the transition from the heating zone to the cooling zone is then made directly, there is no need for a distance between the two zones. The press material therefore does not become pressureless in any m range and therefore cannot expand. Furthermore, as is clear from Figure 4,
Since the supporting strips 4a arranged side by side have the same length and their recesses 18 are provided at different angles with respect to the supporting strips 4a arranged side by side, the arrangement of the pressure rolls 7 is also unevenly arranged. It is done. With this arrangement, it is possible to transmit uniform pressure across the entire width of the press material.

In FIG. 5, another embodiment of the support strip is shown, which differs from the previously illustrated embodiment in that the insertion shaft 13 is provided with a conduit 15& for heating or cooling. ing. Connections at the edges of the insertion shaft are made as in the nine embodiments shown previously. Its advantage is suppression low V
7. Direct heating results in perfect color.

This is because the pressure roll encloses the insertion shaft and therefore directly receives the temperature of the insertion shaft. The construction of an additional conduit 15 of the support strip can therefore be omitted. It was therefore found that the stability of the insertion shaft was not impaired. This is because the insertion shaft is held by the individual support bearings 10, so that the insertion shaft cannot be bent.

In all the embodiments shown, the individual defective rows A/ can be quickly and simply replaced by extracting them on the insertion shaft 131 and inserting them into a new pressure row fv7. It can be brought back into position and held onto the shaft 1112 using the screw 14. Replacing individual support strips is also quick and simple.

Overall, in the foldable cIT-capable roll device according to the invention, the replacement of a defective row V is particularly simple if the insertion shaft is located in the U-shaped quadrant of the support strip. Figures 2 and 3
As shown in the figure.

It is also possible to provide the continuous line 1 from the line 15 to the individual core locations, ie in the area of the dark support bearing of the needle bearing 9. ! Used to control If & conduit 15
The hot oil flowing through can then also be used as a simple/III oil. Naturally, it is also possible to install a W heating device 1t-m on the insertion shaft for the suppression roll, so that the roll can be heated. Their insertion shafts can, for example, be fitted with heating spirals, and are therefore designated as so-called heating inserts. Assembly is therefore relatively simple. This is because when replacing the insertion shaft 13, there is no need to consider interruption of the hot oil circuit. Even relatively high temperatures V can be implemented.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing the principle of the two-straight belt press according to the present invention; FIG. 2 is a cross-sectional view in a direction perpendicular to the belt running direction through the suppressor piecewise and through the support strip; FIG. 2 is a sectional view along the line I1 in FIG. 2, FIG. 4 is a plan view of the support strips arranged side by side in the direction of the arrow in FIG. 3, and FIG. 5 is a longitudinal section of the support strip according to another embodiment. It is a front view. 4... Pressing plate, 4a... f holding strip, 5... Pressing body, 7... Pressing roll.

Claims (1)

[Scope of Claims] 1. Two rotating belt sides that accommodate the material to be pressed between them, and heatable and heatable parts provided on the upper and fifth parts of the belt parts facing each other on both belt sides. A plurality of pressure rolls are provided fixedly to the pressure bodies to which the suppression plates are respectively fixed, and the pressure rollers fixed to the pressure bodies to transmit the pressure completed by the pressure bodies to the press material. In the double belt press with retractable roll device, the suppression plate (4) is formed at least partially by a plurality of supporting strips (4a) arranged side by side and extending in the direction of running of the belt; A double belt press characterized in that each of the support strips has a storage opening and a pressure roll (7) is supported by these strips.2.The suppression plate (4) is a support strip. (4a), each support strip (4a) being fixed to a press body (5). 3. The double belt press according to claim 1 or 2, characterized in that the support strip (4a) is fastened with a press body (53K screw). 4. The support strip (4 & ) A double belt press according to one of the items 1 to 3 of the special egg range, characterized in that a series of pressure rolls (7) are provided that extend transversely to the running direction of the belt. . 5, Soori et al. 7] Suppressing row v (7) is attached to each support strip (4a)
2-shift according to one of claims 1 to 4, characterized in that it is fixed to a common insertion shaft (13) of the VX. 6. On the side of each support strip (4a) facing towards the belt sides (3a, 3b), a plurality of recesses (1) corresponding individually to their pressure rolls (7) and into which they are inserted; 1B) 2N[belt press according to one of claims 1 to 5]. 7, their suppression rolls (7) are 6 support strips ('4 a
) are separated from each other by a number of support bearings (10), and those support bearings (10) are inserted, 1it
A two-speed pellet press according to one of the claims 81 to 6 of Patent I4#, characterized in that it has a concave portion accommodated in the il(13)1. 8. The insertion shaft (3) is attached to the support strip and the screw-tight shaft cover (
12) specified in one of the ranges 1 to 7 of the special PFfM, characterized in that it is fixed at the end range of
'i1 belt press. 9. The scope of the support strip (18) characterized in that the four parts (18) are provided differently in the supporting strips (4a) arranged side by side, as described in item 1 to item 8 1). 2nd straight M dobles. 10. Those pressure rolls (7) are needle bearings (9)
A two-direction belt press according to any one of paragraphs 1 to 9 of paragraph 7 of Patent A, characterized in that the press is supported by a common insertion shaft (13) via a common insertion shaft (13). 11. According to one of the claims 1 to 10 of the scope of the patent a, characterized in that each support strip (4a) is provided with a conduit (15, 15a) for heating or cooling liquid. 2 straight belt press. 12. The claim is characterized in that the line (15) is at the same time provided as a lubricant line and is connected to the lubricating point (support bearing 10) via a transverse connecting line (15b). A double belt press according to Range 11. 13. 2 according to claim 12, characterized in that the conduit (15) extends adjacent to the suppression row M (7).
Nao Perdobu Vs. 14, Tube lI! The double belt press according to claim 12, characterized in that (15a) is provided on the insertion shaft (13) with respect to the suppression row Iv+71. 15. Is the insertion shaft (13) configured as an electric heating element? The two-direction belt press described in Patent III Ice Scope Item 5 characterized by: