JPS60139325A - Kneading machine - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The invention comprises at least a number of shafts driven at different speeds, these shafts being surrounded by a common horizontal or inclined casing. , the casing has an inlet fitting and an outlet fitting for continuous passage of the product, and also.

On the shaft there are provided interlocking members in a gear-like manner and with an angle of inclination to cause axial feeding, and which are also driven at least faster. The present invention relates to a kneading machine in which the mixing members of the shaft are arranged adjacent to each other at intervals in the longitudinal direction of the shaft.

Conventional technology This type of machine is manufactured by V-sun V-engineering and has a Swiss patent number! r O
b, No. 3.22. The second shaft crosstalk member has a function of cleaning the main shaft and its disc-shaped crosstalk member. This is because the product tends to stick to surfaces, especially when carrying out thermal reactions in the machine. In order to cause improved crosstalk, both axes are driven at different speeds, so that there is greater product movement within one part of the machine and product exchange with other parts of the machine. Then it is advantageous. However, in the case of continuous product passage, the kneading arms, which have a certain angle of inclination, are faster in the part of the machine surrounding the axis that is driven faster.
□When causing product feeding, there is a non-uniform residence time distribution of the product in the machine.

The mixing member of this known machine has kneading arms extending parallel to the wall of the casing and in the longitudinal direction of the casing, so that the arms have an arcuate profile. Make it. Particularly when processing pasty or dough-like products, it is often the case that the product also sticks to the kneading arms and moves in unison with the kneading arms without further crosstalk. Products that are already attached to the kneading arm are
The product is allowed to further adhere to it 5, thereby causing the product to occlude the crosstalk space surrounded by the arcuate shape.

The object of the invention is to have an improved crosstalk effect, in particular to make the residence time of the product in the machine more uniform,
On the other hand, the object is to obtain a machine of the above-mentioned type which causes a much greater automatic cleaning of its surfaces in contact with the product.

According to the present invention, this problem is solved in the first claim of the “Claims”.
The problem is solved by a kneader wave having the characteristics described in the section.

Due to the baffle plate provided by the invention, excessively rapid feeding of the product in the longitudinal direction of the machine is prevented, so that the product can be transferred laterally from the cross member of one shaft to the cross member of the other shaft. so that it is fed in an increasing direction. The resulting greater cross-talk effect throughout the machine causes a narrower residence time distribution of the product within the machine and thus improved product quality.

As a function of the strength of the desired diversion or damming effect, the dimensions of the baffle plates can be made such that they extend at a greater angle than qoo about the faster rotating axis.

One baffle plate is placed in each case in the gap between the crosstalk elements. Instead of seven baffle plates extending circumferentially of the casing, several shorter plate sections can also be circumferentially adjacent. However, interrupted baffles have the advantage of leaving fewer surfaces unswept by passing crosstalk members.

In a manner known per se, the crosstalk elements of the slower rotating shaft can also have heating discs, which are rubbed lightly in a cleaning manner by the crosstalk elements of the faster rotating shaft.

In most cases it is recommended to place a scolding plate above the base of the casing. It has been found that the assembly of the casing cover can also provide advantages during machine construction and maintenance.

The involute surfaces of the cross members of faster rotating shafts are cleaned by the cross members of slower rotating shafts as a result of their shape. This is because the latter crosstalk member moves along the involute surface.

It may be advantageous if at least seven baffles are arranged between the kneading elements in order to counteract the enhanced feeding action of the closed involute surfaces of the kneading elements.

The discharge of the accelerated product can be prevented in a separate discharge-side casing, in which the kneading elements do not have an angle of inclination that facilitates the transport or feeding action. . It is also possible to slow down the supply of product into the discharge casing by means of deflecting elements, for example in the form of plates, which are placed between the cross-over elements.

These deflecting elements also carry out co-rotation with the cross-circuit elements of the product.
/b has an operating casing l,
This ensures that the cross section of the casing l is in the shape of a horizontal number square.

The upper part of the casing is closed off by a removable flange cover, on which the inlet fitting 3 is provided. The coverco flange/g is
The flange/left of the base/6 of the casing l is connected in a leak-tight manner by means of fasteners, not shown, such as screws or clips. The flow through the machine is
An inlet joint 3 at one axial end of the machine casing I leads to an outlet joint located at the other end in the base 16 of the casing I.

A slower rotating shaft 3 and a faster rotating shaft 6 are mounted on bearings 7. on the casing parts /a, /b. g
Or installed in 9 or 10. On the drive side, bearing 7. g is placed in a gear box //, which gear box l/ is flanged to the end face of the machine by a connecting casing part, and in this way the gear box l/ has two shafts! , 6 are interconnected at the desired speed ratio. On the outlet side of the casing, a bearing 9. The IO is arranged in a flangeed casing part (spacer) 13.

The drive is also provided by a drive journal 6a placed on the faster rotating shaft 6, and this journal 6a
In this example, the shaft 5, which is rotated more slowly in unison by a pair of gears (not shown) of the gear box 1/, is:
Drive at a speed ratio of /.

Above the periphery of the slower rotating shaft 50 there is a crosstalk having a number of uniformly circumferentially spaced and many axially adjacent sector-shaped disks, 2 (7). There are members (FIG. 2), these discs, 20, are mutually connected by kneading arms, 2/ arranged parallel to and with a limited inclination to the casing/walls. (FIG. 1). In each case, the sector disk 20 lies in a plane perpendicular to the axis 5 and is preferably heated in the same way as the casing. To simplify the illustration, the heating duct for the heating medium is not shown; however, in this case the shaft 5 is hollow and the casing/deflection is explained subsequently. It is clear that it is constructed in a double-walled manner together with the plate 2S.

Axis that rotates more slowly! The shaft 6 rotates faster than the
The rotating shaft 3 (which is also called the cleaning shaft) has a large number of axially adjacent cross-conducting members, which allow the fan-shaped disc 20 of the rotating shaft 3 to rotate at a slower speed. If the kneading arm l of the rotating shaft S intermittently engages the kneading member 27 of the faster rotating shaft 6 in a gear-like meshing manner, it can move through the gap between the kneading members 27. be able to do so.

As can be seen from FIG.
It has a slope. This also applies to the embodiment of crosstalk member 27 according to FIG.
In the figure, the slope is not shown for clarity. These crosstalk members, 27, extend parallel to the casing/wall, so that when the shaft 6 rotates, the flow also moves towards the outlet joint, just like a helical or screw conveyor. For the corresponding rotation in the direction of
A transport or feeding action is caused in its longitudinal direction. If the kneading member core of one shaft 6 is to move past the kneading arm l of the other shaft 5, then the faster moving member λ7 (among them , only one is shown in the circumferential direction of axis 6)
, their helical contours must have a correspondingly larger inclination angle. In the case of the present example, the speed ratio is Hiroshi:l, and therefore the inclination angle is larger than 1 times. On the top of B, there are only q cross-talk arms on the shaft 3, which rotates more slowly.
Associated with an angle of inclination greater than twice the casing part/
The feeding of a much larger product in the casing part /b than in a is prevented if seven or more baffle plates, two or more rapidly rotating shafts 6
if not provided in the surrounding casing part /b. This faster feeding effect causes parts of the product to pass through the outlet joint l more quickly, ie the residence times are correspondingly different.

In this embodiment, a large number of baffle plates 5 are arranged adjacent to each other in the longitudinal direction of the casing l in an area that is not passed by the crosstalk member 27.

However, in the embodiment of FIG. 7, for example, only one deflector 2! It is sufficient for the machine to be located approximately in the center of the machine. The deflector plate, 2 left, is approximately 900 mm in the plane perpendicular to the axis A and in the circumferential direction of the casing.
at an appropriate angle, thereby providing a correspondingly thicker damming or deflecting effect. Although the baffle plate 5 is oriented coaxially with the circumferential direction of the shaft 6, this is not necessarily necessary. The gap /7 between the periphery of the shaft B and the inner edge of the baffle plate 23 is such that it allows axial product feeding even near the baffle plate 23.
passes by lightly touching the baffle plate 5 and cleaning it, while the cross-conductor member 2/ extends parallel to the wall of the casing l.

The core cleans the walls of the casing/so that deposits are destroyed or blocked.

The embodiment shown in FIGS. 3 and 3 differs from that shown in FIG. 1 in that the baffle plate 1 is fixed to the cover plate of the casing l. Moreover, according to these embodiments, only the part of the baffle plate, 2 &, / fixed to the cover 2 of the casing / is arcuate, while the baffle plate protruding into the lower part of the casing / On the left, the part /g has a vertically oriented outer border edge /de. This outline is the deflection plate 2S
, / can be introduced into the lower casing part /A during the vertical lowering of the coverco.

For the embodiments of the second, third and d figures, the deflector plate 2 left or 2! It is common that ;, / are arranged on the side of the shaft O which is remote from the slower rotating shaft 5 and above the base ll- of the casing /.

The embodiments shown in FIGS. 2 and 3 differ from that shown in FIG. 9 with respect to the structure of the crosstalk member 27. The mixing element 27 according to FIGS. In the department,
Cross line arm 2 inclined parallel to the casing/wall
2 are interconnected. In this way, the kneading element 27 of the faster rotating shaft 6 has a frame-like contour, while the mixing element 27 according to FIG. 9 is closed.

The filling level in the machine can be determined by an overflow plate 2, which is arranged in the base of the casing and at the front of the outlet fitting. This overflow plate roller extends at right angles above the base /6 of the casing / and also extends without interruption between the - casing parts /a, /b, as shown in FIG. ing. However, the filling level can also be controlled by an outlet valve provided on the outlet fitting.

The embodiment of the machine according to the invention shown in FIG.
7 and thus forms an extension of the casing l on the outlet side compared to the embodiment of FIG. The interfering member 3/ provided on the rotating shaft 61 in the outlet casing 3Q has a radial cross section of
It is constructed in a manner corresponding to the crosstalk members shown in Figures I a - II c, however, it is not inclined. Furthermore, baffle plate members 3.2 are each arranged between the crosstalk members 3/. The absence of any inclination, together with the baffle members 3, is associated with greater crosstalk in the outlet casing 30, resulting in a deceleration of the product being processed in the machine.

This slowdown is advantageous. This is because the relatively high speed of the faster rotating shaft 61 (the rotating kneading element 3/ causes a strong axial feeding in the vicinity of the casing part /b, which would otherwise be excessively This strong feeding action is also due to the closed shape of the kneading element body according to Fig. It also originates from the front side of the member 27 (FIG. FC).The mixing member 27 according to FIG.
Their lateral surfaces, 3jt, 31. The baffle plates 3°2 on the left and/or 3 rub against them and clean them, but this is due to the fact that the cross member core according to Figs. The outer surface has 3 ri,
It is similar to cleaning the walls of the corresponding casing, so that deposits are destroyed or prevented.

Preferably, the front surface 33 and the rear surface J4' of the kneading member 27 according to FIG.
It is desirable that the slower-rotating cross-talk arms, 2/ of the cross-talk member θ of the shaft 3, which rotates more slowly, move at equal intervals along the planes 33 and 3q. This involute shape of the closed surfaces 33.3'l of , 27 means that the surfaces 33, , ?4' are connected to the cross wire arm 2.
/ to ensure uniform cleaning and to prevent any product from adhering to it. For this purpose, it is suitable that the kneading arm, 21, moves along said surface 33, J4' without contact.

In the diagrams D-A-IC, the axis left, 6, and the crosstalk member are as follows:
Although solid bodies, it is clear, however, that they can also be formed as hollow bodies for the circulation of the heating medium.

Effects of the invention In the machine according to the invention, as a result of its relatively large free volume inside the casing, it is suitable for processing both paste-like and free-flowing products and also has a geometrical Due to the contour and kinematics, the adhesion of the product to the machine surface is significantly reduced.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a co-shaft machine according to the present invention with a cover partially cut away, and FIG. 2 shows an embodiment in which the baffle plate is fixed to the base of the casing, taken along the line n-- in FIG. FIG. 3 corresponds to FIG. 1 of the embodiment in which the baffle plate is fixed to the cover of the casing;
-'I c is a longitudinal sectional view of another embodiment of the invention in three different rotational positions; the left figure shows a second embodiment of the invention with the flange cover near the discharge end; FIG. 3 is a partially cutaway plan view. /...Casing; 3...Inlet joint; G...Outlet joint;
S, 6... Axis; lA... Base Ha. ...Fan-shaped disc; 2/...kneading arm; Yu! r, 3.2... deflection plate; 27. J/...kneading member; 30...outlet casing. Page 1 of the ij'1 revision (no changes to the original) FIG, 2 FIG, 3 Procedural amendment dated January 29, 1985 Shiga, Commissioner of the Patent Office Palm print 1, Indication of the case Patent Application No. 255853 of 1980 2, Name of invention kneading machine 3, relationship with the person making the amendment Patent applicant name Heinz List 4, agent address Drawing 4th floor (1), Marunouchi Building, 2-4-1 Marunouchi, Chiyoda-ku, Tokyo

Claims (1)

[Claims] l It has at least k axes driven at different speeds, these axes being surrounded by a common horizontal or inclined casing, the casing being able to accommodate the successive passage of the product. For this purpose, it has an inlet joint and an outlet joint, and is provided on the shaft with an angle of inclination so as to cause the cross-connection members to engage each other in a gear-like manner and to cause axial feeding. the cross-talk members of at least the faster-driven shaft are spaced apart and adjacent in the longitudinal direction of the shaft, and the at least one cross-talk member of the faster-driven shaft is fixed to the part of the casing surrounding the faster-driven shaft. A crosstalk machine, characterized in that there are at least one deflection plate, and the deflection plate is arranged in a plane perpendicular to the axis between crosstalk members that are adjacent in the longitudinal direction of the shaft. 2. The kneading machine of claim 1, wherein the baffle plates surround the periphery of the shaft within an angular range of at least about 900 degrees or more at intervals. J. The crosstalk machine according to claim 1 or 2, wherein at least a portion of the deflecting plate is arcuate. Claim 1, wherein the baffle plate is disposed above the base of the casing. λ or the crosstalk machine described in item 3. 5. A crosstalk machine according to any one of claims 1 to 5, wherein the baffle plate is arranged on the side of the faster rotating shaft that is remote from the slower rotating shaft. A crosstalk machine according to any one of claims 1 to 3, wherein at least a portion of the several baffles are fixed to a cover of a casing provided on the top of the machine. 2. A patent in which the cross-talking member of a shaft that rotates more slowly is provided with a disc that is adjacent to the shaft in the longitudinal direction and in a plane perpendicular to the axis, and a cross-talk arm is fixed to the outer periphery of the disc. A crosstalk machine according to any one of claims 1 to 6. g each cross member of the slower rotating shaft has at least 3
8. The crosstalk machine according to claim 7, further comprising two discs and a crosstalk arm for interconnecting the discs. 9! The mixing machine according to any one of claims 1 to g, in which the speed ratio between the k axes is equal to the ratio between the number of kneading members that are adjacent in the circumferential direction on the axes. . /θ A slowly rotating shaft has a number of circumferentially adjacent cross members, and a faster rotating shaft has only one cross member, and this If, −
8. The crosstalk member according to claim 7, wherein the speed ratio between the two shafts is /2. /l The kneading member of the shaft that rotates faster is comprised of two cross-contact bars and one cross-contact arm that interconnects them. The crosstalk member described in . The faster rotating shaft crosstalk member has a front face and a back face that extend outwardly from the periphery of the shaft with an involute curvature without obstruction, thereby Kneading according to any one of claims 1 to io, in which mixing arms having uniformly spaced slower rotating axes move in a cleaning manner along said surface. machine. /3. A crosstalk machine according to any one of claims 1 to 7.2, wherein the part of the casing surrounding the faster rotating shaft extends to the outlet casing surrounding the extension of the faster rotating shaft. . 74. A kneading machine according to claim 73, wherein the mixing member surrounded by the outlet casing of the faster rotating shaft has some inclination to effect feeding in the direction of the outlet. 142. A crosstalk machine according to claim 141, wherein a deflecting member is provided between the crosstalk members in the outlet casing.