JPH03505852A - Cutting device with at least two cutting members - Google Patents

Abstract

The cutting device has two cutter components. It is especially suitable for split plain tiles. The cutter carriers (25) may be pivoted into their inoperative and operative positions. Each cutter (25) is connected to a spindle (29, 30), the spindles being arranged coaxially (40) one within the other. Thus the cutter carriers pivot about the same axis (40) at the same time in the manner of scissors. The cutter carriers (25) are forked and the cutters (26) are in the form of wires and interchangeable. This cutting device is permanently installed on the extruding press belt. It is nevertheless easy to regulate, can be monitored and operates reliably.

Description

[Detailed description of the invention] A cutting device having at least two cutting members The present invention particularly provides a cutting device having at least two cutting members. The present invention relates to a cutting device having at least two cutting members for cutting shaped parts.

The so-called strip roofing straw is continuously extruded from an extrusion machine in a flat, lying shape. It is known to be constructed by strips. At that time, the so-called 2 Renpei Gawara , has at least one so-called nose, which makes the roof structure The straw roof is one dimension lower, helping to hold things in place. Therefore , which is flat and, in effect, treated as a two-dimensional object. For this kind of treatment, It comes with quite a few drawbacks. Because, in a form similar to three-dimensional bricks, This is because it cannot be manufactured.

Even in the case of straw roof manufacturing, a six-dimensional shape is already formed at the exit of the extruder. It is publicly known. In other words, the mouth of the extruder is such that both side walls of the three-dimensional object It is constructed so that two consecutive flats facing each other come out in the shape of a straw. this The cover has rail-like protrusions facing each other. Also, multiple horizontal webs are connected to each other.

After the extruded strip having this shape is extruded, it is divided horizontally in the usual manner. A three-dimensional construction with two series of flat blanks connected to each other is obtained, which It is processed like a normal raw product. However, be careful when doing so. The point that the rail-like protrusions facing each other should be It is necessary to remove it from the bottom of the straw to the protrusion. This is simply This is also well known in the conventional manufacturing of individual roof straws.

However, the cutting device used for partial removal of this type of rail-like protrusion is The following points are not considered.

In other words, if the cutting device is placed at the mouth of the extruder, the operation of the cutting device can be monitored easily. In reality, this is impossible.

This makes it impossible to check, for example, whether the protrusion has been accurately incised. stomach.

It is also known to connect mutually facing rail-like protrusions with a connecting web; In this case, it is difficult to cut the rail-like protrusion with only a portion of its length remaining. . In particular, difficulties arise when separating the components to obtain two pieces of straw. Ru.

Furthermore, since it is difficult to remove the crumbs from the protrusions immediately, it is necessary to bake them together to dry them. I have no choice but to do something unnecessary.

It is an object of the present invention to be able to arrange the extruder as a fixed part of the extruder extrusion channel, and to easily adjust it. Our goal is to produce cutting equipment that can be monitored and operated reliably.

One of the claims describes the features of a cutting device of this type.

Next, embodiments of the present invention will be described with reference to the drawings.

Figure 1 shows two 6-dimensional straw structures that come out of the extrusion machine, are cut horizontally, and are separated from each other. The rail-like projections facing each other and the two synchronous cutting devices facing each other are shown. front view, FIG. 2 is a side view of the cutting device; FIG. 6 is a plan view showing the operating mechanism of the cutting device in an open cutting position; FIG. 4 shows the fork-shaped cutter combined with the operating mechanism of FIG. 6, and the IT-shaped cutter of FIG. A plan view of the operating axis cut along the IT line; FIG. 5 is a plan view of the operating mechanism for the cutting device similar to FIG. 6, shown in the closed position; 6 is a plan view of the fork-shaped cutter of FIG. 5, similar to FIG. 4; FIG. 7 is a partial view of the transition area of the operating shaft and the fork-shaped cutter;

FIG. 1 is a front view of a two-piece structure 1 with a straw roof. This strip has a known shape. The material is then cut transversely using known cutting equipment to obtain a corresponding blank.

The sides of this unprocessed product are formed by two rows of flat straws 2.3 with their bottoms facing each other. , the narrow long sides 5 and 6 of these flat straws are visible in the drawing. both sides 2.3 are connected by a connecting web 8. Transition section from Web 8 to Kawara is provided with a notch 9 for breaking, which separates the fillets 2 and 3 from the web 8 after baking. It is now possible to do so. In order to fix the Kawara A-mai, there is usually one piece in the Kawara. Or two protrusions are provided. This extends from the long side end to the front chamfered side. These protrusions include rail-like protrusions 11 and 12 that extend over the entire length of the kawara. It is formed by removing and separating these protrusions left on the underside of the unprocessed product. . This separation requires the cutting devices 14 and 15 shown in FIG. These cuts Each of the devices 14,15 is configured as a double cutting device. both rails This is because each of the protrusions 11, 12 must be separated and separated.

In Figure 1, the left and right fork-shaped cutters are in the open position, that is, the cutting position. The rollers are shown in broken lines, and the rollers in the closed position 18 are shown in solid lines.

Operation of the fork-shaped cutter takes place via a drive 20.21. These drivers The dynamic device is typically configured as a pneumatic cylinder/piston device.

FIG. 2 shows the cutting device from the side. The figure shows one 7 oak-shaped cutlet A cutting wire 26 is shown stretched between the two wire holders 2T. ing. The two fork-shaped cutters 25 are driven by a hollow shaft 29 on the one hand and a hollow shaft 29 on the other hand. In this case, an internal shaft 30 with a head 31 is useful. The hollow shaft 29 has one The fork-shaped cutter 25 is welded to the inner shaft 30, and the other canter 25 is welded to the inner shaft 30. It is attached via a joint 32. An internal shaft 30 extending within the hollow shaft 29; The empty shaft itself is supported as a unit in a pivot bearing 33. Both shafts 29 ．． The reverse swivel of 30 takes place via a quadrilateral swivel link 37. Linke The slider 3γ is shown in FIG. 6 pivoted along the longitudinal slide axis 38 into the open position. , in FIG. 5, it has been pivoted to the closed position. This can also be seen from Figures 4 and 6. I can do it. The individual levers of the quadrilateral pivot link 737 are connected via ball joints 39. are connected to each other.

The pivot axes of both shafts 29, 30 are designated by the reference numeral 40.

Via the yoke 41, the linkage 37 connects the piston of the pneumatic cylinder 43. It is connected to the tongue rod 44. In the piston delivery state shown in Figure 3, the cutting device is , come to the cutting position shown in FIG. The two pieces of straw on the roof 1 are shown by the arrows in Figure 4. When moving in the direction, the cutting wire 26 of the fork-shaped cutter 25 cuts the rail-shaped protrusion 11°. 12 is cut in the longitudinal direction of the raw material. This cutting action is controlled at a predetermined point in time. The control device acts on the pneumatic cylinder 43, and the piston moves the piston rod 44 into the fifth position. This continues until it is retracted to the position shown. By retracting the piston rod 44, The cutting device is pivoted away from the cutting device by the mutual pivoting of the fork-shaped cutters 25, and The remaining portions υ of the loop-shaped projections 11 and 12 are left as projections 48°49. turning luck As a result of the movement, the rail-like projections 11.12 are simultaneously cut transversely. Kawara 2゜3 The rail-like protrusion 11.12 separated from the inner surface of the Can be collected. Kawara continues to move along the conveyance path.

After cutting off the corresponding parts of the rail-like protrusions 11 and 12, the remaining protrusions are For example, it can be monitored by visual recognition.

The described driving of the fork-shaped cutter is extremely simple. Because axis 29.30 The canter is positioned in the closed or open position by the movement in the opposite direction. It is. The cutting device is also equipped as a fixed part, unlike reciprocating cutters. Therefore, the difficulties that arise with reciprocating types do not occur.

After the two-piece roof straw object 1 is pressed out from the extrusion machine, it is made of soft and deformable material. The fork-shaped cutter 25 having the cutting wire 26 is provided with a wedge-shaped guide in front. You can keep it. This guide will ensure appropriate spacing and thereby Cutting of the loop-shaped protrusions ii and i2 is performed on the back side of the straw, and Make sure that this is not done inside the back side.

In principle, when cutting the cutting wire 26Vi, as shown in Fig. 4, It can be used in any position and pulled out in the opposite direction.

Needless to say, all moving parts include the fork opening of the forked cutter 25. Including, adjustable. i.e. tightening of the corresponding pivot plate of link-737. The pivot positions of the shaft 29 relative to the head 46 are mutually adjusted. principles and The stroke height of the piston rod 44 in the feeding/feeding state, or the piston rod The length of the 7-oak cutters 25 can also be changed, as can the relative positions of the two oak-shaped cutters 25.

The above-mentioned cutting device can be used to easily and reliably cut the double-barreled Vilento with a straw roof. In addition, hooks can create protrusions.

All individual parts and features shown in the foregoing description and drawings, as well as Exchanges, combinations and variations of these are also within the framework of the invention, and For parts and individual features, values from n-1 to HeCo are given.

FIG.5 FIG.6 F IG, 7 international search report international search report CH9000092 SA 35599

Claims (8)

[Claims] 1. In particular, the splitting flat is a cutter having at least two cutting members for cutting the protrusions of the straw. In the cutting device, the cutting member holder (25) is pivoted between its rest position and its working position. A cutting device characterized in that: 2. Each holder (25) is connected to a pivot shaft (29, 30), and these shafts (29, 30) 30) are preferably arranged concentrically about the axis (40). The cutting device according to claim 1, characterized in that: 3. The pivoting of the cutting member holder is performed at the same time about the same axis (40), even if 3. The cutting device according to claim 1, wherein the cutting device is cut in a scissor-like manner. 4. A cylinder/piston device (43, 44) is provided, and this device simultaneous rotation of the rotation shafts (29, 30) in opposite directions via the linkage (37); The cutting device according to any one of claims 1 to 3, characterized in that: 5. The cutting member holder (25) is configured in a fork shape, and the cutting member (26) is configured in a fork shape. Claims 1 to 4, characterized in that the wire is configured to be replaceable in the shape of a wire. The cutting device according to any one of the items. 6. A guide member, for example a wedge-shaped guide, is arranged upstream of the cutting member (26). Cutting device according to any one of claims 1 to 5, characterized in that: 7. There are four sides between the cylinder/piston device (43, 44) and the shaft (29, 30). Claims 1 to 6 characterized in that a shaped linkage (37) is arranged. The cutting device according to any one of the items. 8. The rotating shaft (29, 30) is driven purely mechanically. The cutting device according to any one of claims 1 to 7.