JPS6353918B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a device for coating decorative layers of plastic or vinyl on the end faces of decorative plywood for furniture of various shapes, in which a number of pressurizers which can be moved into their operating positions separately from each other are provided. The present invention relates to a pressure device for an edge gluing machine having a set of rollers.

Production with edge-gluing machines can only be carried out economically if all the equipment necessary for processing the workpiece can be brought into the working position without special downtime.

In cutting or milling or other machines, the problem is solved in that all the tools required for the machining are introduced in series into the machining line. Therefore, each time a changeover to another workpiece is required, only a transfer, a transfer or, if necessary, a slight adjustment is required. Large downtimes can therefore be avoided.

However, the pressurizing device is a problem in edge gluing machines. The pressure device must always be positioned immediately behind the sticking point in the direction of passage of the workpieces, and immediately after the pieces are stuck together, the pressure device must apply pressure to the edges. Arranging the various pressure devices in front-to-back relationship with the various workpieces as the workpieces pass through the machine,
It's impossible.

Therefore, in order to reduce the downtime when changing from one pressure device to another, pressure roller sets have already been developed which are moved as a unit to the operating point each time the need arises. That is, it is true that if this is done, the downtime for switching the pressurizing device will be slightly reduced. However, a sufficient reduction in downtime and automation of this process has not yet been achieved with this device.

According to the invention, this problem is solved in that the pressure roller sets are fixed on a joint rotating device and can be individually moved swingingly into the working position. .

According to a feature of the invention, in the first applied pressure device, the pressure roller set required for the respective processing is placed in a rotating device as a pre-prepared unit for immediate operation. placed,
Therefore, when required, the unit to be machined in each case can be brought into its operating position at the edge of the workpiece by a simple rocking or pivoting movement. Therefore, there is no need to manually replace the pressure roller set, which was conventionally necessary to replace a certain area.

In an advantageous embodiment of the invention, the rotating device is configured as a drum-shaped, rotating cross-shaped or rotating star-shaped device with an axis oriented generally parallel to the direction of passage of the workpiece. . In one such device, a pre-prepared set of pressure rollers is moved to an operating position by a simple automated device simply by swinging the rotating device through a certain angle. On the basis of this type of device, a large number of pre-prepared sets of pressure rollers are arranged around the drum device, rotating cross device or rotating star device, and therefore a very wide variety of processing can be carried out. becomes possible.

Furthermore, in an advantageous embodiment of the invention, the rotating device is provided with a central shaft, which is supported in a floating manner on the stator. In this case, the central axis serves as a support arm which can provide extremely stable dimensions without any technical difficulties. Because of the floating support described above, simply placing the stator on one side of the pressurizing device ensures that the free end of the central shaft is pressed relatively tightly against the stuck point. can do.

In order to obtain as wide a range of adjustment possibilities as possible, the stator is provided with one cross-slide in order to be able to move the central axis parallel to the central axis in a plane perpendicular to the direction of passage of the workpiece. It is possible to install a racking device. According to this method, the center shaft, and thus the pressure roller set, can be moved back and forth, and can also be pulled up and taken down.

In an advantageous embodiment, disc-shaped, cross-shaped or star-shaped carriers are arranged at intervals from each other, around which rods parallel to the central axis are fixed, the rods being A pressure roller set is movably fixed to the holder. With this configuration, not only is the structure relatively simple, but also it is possible to arrange individual pressure rollers in multiple ways.
Therefore, for example, for a certain edge shape,
Pressure rollers can be provided on a number of bars arranged next to each other, so that several rows of roller sets act on the edges. Despite these various possibilities, the overall outlook for this arrangement is relatively good.

To rotate the central shaft or operate the cross-shaped slide, a manually operable adjustment shaft, a hydraulic or pneumatic control cylinder, or an electrically controlled motor may be provided. When applying this to automatic machining lines, if necessary, the rotation of the central axis or the operation of the cross-shaped slide can be performed under program control, eliminating the need for manual switching. .

In one advantageously implemented embodiment of the invention, the aforementioned rod is fixed such that it can be displaced around the carrier. According to this, there are many possibilities for the arrangement of the pressure rollers, so that even the most complex pressure problems can be solved.

In addition, in order to perform proper fixation, after making a rough swing toward the respective operating position, it is possible to move it to an accurate position by means of a restraint device, and then to fix it in this position. It is appropriate to do so. According to the above-mentioned method, it is therefore possible to use all kinds of, and therefore economically advantageous, drive devices for rocking the rotary device. This is because fine adjustments can be made by devices unrelated to this. Advantageously, the restraining device provided for the fine adjustment has a cylinder-actuated ram which can enter into a sleeve fixed to the rotary device in a position dependent on the respective operating point. Such an arrangement is not only simple to manufacture, but also more reliable and reliable in operation.

In the restraint device as described above, a number of sleeves corresponding to the number of two locations are provided which are fixed directly to the disc-shaped, cross-shaped or star-shaped carrier and fixed around the periphery of the tubular sleeve. By being
One advantageous structure is obtained. According to this method, since there is no need to use a transmission joint that includes play, extremely accurate restraint can be performed with a simple method.

According to an advantageous embodiment of the invention, the above-mentioned protrusion rod or sleeve is configured in a conical shape.
At the same time, if it is fixed without play, fine adjustment can be achieved by coarse rocking. In other words, by having a conical structure as described above, the sleeve, which is conveniently placed with different protruding rods and shafts for rough swinging, can be swung to its correct position by the entry of the protruding rod. and, in the fully inserted state, is immovably fixed in this position by the protrusion.

Next, for a more detailed explanation and better understanding of the invention, embodiments of the invention will be described with reference to the drawings.

The pressure device for the edge gluing machine shown in the drawing has a vertically oriented cradle 1,
It has on one side a dovetail guide 2 for a slide 3 which can be moved vertically up and down on the pedestal 1.

The sliding rack 3 furthermore has a dovetail guide 4, in which a sliding rack 5 is arranged so that it can be moved back and forth in the horizontal direction. Both sliding racks 3 and 5 constitute a cross-shaped sliding rack device. A bearing 6 that supports the central shaft 7 is attached to the sliding rack 5. The bearing 6 relative to the central shaft 7 is shown in FIG. 4 in an enlarged manner with a partial section.

In this case, two cruciform carriers 8, 9 are fixed on the central shaft 7, which is floatingly supported by a bearing 6, and whose shape is shown in FIG. has been done. Said cruciform carriers 8, 9, which are arranged exactly side by side on the central axis 7, carry on their periphery bars 10 to 15 extending parallel to the central axis 7, which in this embodiment are The ends of the cross-shaped carriers 8 and 9 are made to protrude by a certain amount.

The rods 10, 11, 14 and 15 each carry a number of pressure rollers 16, which are each supported by a holding device 17 fixed to the rod.
and a roller body 18.

In the illustrated embodiment (see FIG. 3), the pressure rollers 18 for two rows are combined into one pressure roller set 19.
It is summarized in

As is clear from FIGS. 1 to 3, the cross-shaped carriers 8 and 9 have a central axis 7 outside the rods 10 to 15.
A holding device 20 is also arranged parallel to. This holding device 20 carries a large number of rollers 21 arranged exactly next to each other, which together constitute one pressure roller set.

The central shaft 7 together with the cross-shaped carriers 8, 9, the rods 10 to 15 and the holding device 20 constitutes a rotating device D.

In this embodiment, the rods 12, 13 do not carry any pressure rollers (see FIG. 3), so that the rotating device D shown has a total of three rollers, each offset by 90° with respect to the other. It merely includes a pressure roller set.

As is clear from FIG. 4, the cruciform carrier 8 has a tubular sheath 22 which carries a ring 23 at its free end.
are fixed, and said ring 23 comprises a sleeve 24 spaced apart by a fixed angle. A protruding rod 25 protrudes into this sleeve 24,
This is connected to the piston rod 26 of the pressure cylinder 27, which is connected to the sliding rack 5 of the pedestal 1.
Fixed.

In order to make the drawings easier to read, in the above figures, neither the rotating device that engages the ring 23 for the rotation of the central shaft 7 nor the control shaft, control cylinder or control motor that runs together with the slides 3 and 5 are shown. Not yet.

Certain types of workpieces are glued to the edges and, when inserted into the pressure device, the machine is made aware of the identification by underline markings or other means. Thereafter, a pressure is applied to the workpiece by a first pressure roller (not shown). Following this, the workpiece (indicated by dashed lines in the drawing) enters the working range of this processing area. In this case, in the illustrated embodiment, the pressure roller 21
A pressure roller set consisting of a pressure roller set acts on the protrusion of the work piece.

The guiding of the processing area to the respective set of pressure rollers takes place already when the edge is introduced into the gluing machine. The entire rotating device is displaced by the sliding rack device, and the central shaft is subsequently rotated until the respective set of pressure rollers lies in the operating position. In that case, the rotating device is fixed after the rotation process is completed by attaching the protruding rod 25 to the sleeve 24.
(see Figure 4). After that, the pressure roller set is moved by the sliding rack device to an appropriate position opposing the work piece,
Furthermore, by traveling in the horizontal direction, the desired location can be reached.

[Brief explanation of drawings]

FIG. 1 is a side view schematically showing a preferred embodiment of the pressurizing device of the present invention, FIG. 2 is a schematic plan view of the device of FIG. 1, and FIG. 3 is a schematic diagram of the device of FIG. 1. FIG. 4 is an enlarged, partially sectional, diagram illustrating details of the apparatus of the embodiment shown in FIGS. 1 to 3. 1: Frame, 2: Dovetail guide section, 3: Sliding rack,
4: Dovetail guide, 5: Sliding frame, 6: Bearing, 7:
Central axis, 8, 9: Cross-shaped carrier, 10, 11, 1
2, 13, 14 and 15: rod device, 16: pressure roller, 17: holding device, 18: roller body, 1
9: Pressure roller set, 20: Holding device, 22: Tubular sleeve, 26: Piston rod, 27: Pressure cylinder.

Claims (1)

Claims: 1. A pressing device of an edge gluing machine comprising a number of pressure roller sets which can be brought into working position separately from each other, in which the pressure roller set 19 is connected to a common rotating device D. Pressure device for an edge gluing machine, characterized in that it is fixed to and can be individually pivoted into an operating position. 2. The pressurizing device according to claim 1, wherein the rotating device D is configured as a drum, a rotating cross-shaped device, or a rotating star-shaped device, having an axis extending substantially parallel to the direction in which the workpiece passes. Pressurized device. 3. The pressurizing device according to claim 2, wherein the rotating device has a central shaft 7 floatingly supported by the fixed part 1. 4. The pressurizing device according to claim 3, wherein the fixed part 1 has cross sliding rack devices 3, 5,
This allows the central axis 7 to move parallel to the axis within a plane perpendicular to the direction of movement of the work piece. 5. In the pressurizing device according to claim 3, disc-shaped, cross-shaped, or star-shaped carriers 8 and 9 are arranged on the central axis 7 and spaced apart from each other. around which rods 10 to 15 extending parallel to the central axis 7 are fixed;
A pressurizing device in which a pressurizing roller set 19 is fixed so as to be displaceable. 6. In the pressurizing device according to any one of claims 1 to 5, in order to rotate the central shaft 7 or to operate the cruciform sliding racks 3, 5,
A pressurizing device characterized in that it is provided with a manually operable control rod, control cylinder or control motor. 7. In the pressurizing device according to any one of claims 1 to 6, when the pressurizing device is used in an automatic finishing line, the rotation of the center shaft 7 or A pressurizing device characterized in that the operation of the letter-shaped sliding racks 3 and 5 is performed under program control. 8. The pressurizing device according to any one of claims 1 to 3, wherein the rods 10 to 15 are
A pressurizing device characterized in that it is displaceably fixed around carriers 8 and 9. 9. In the pressurizing device according to claims 1 to 3, the rotating device D, by rough rotation,
A pressurizing device, characterized in that it can be moved to an insertion position, reached a precise position by means of a restraining device, and fixed in that position. 10. A pressurizing device according to claim 9, in which the restraining device has a plunger 25 actuated by a cylinder 27, the rotation device D in the position belonging to the respective operating position. A pressurizing device characterized in that the push rod can enter into a sleeve 24 fixed to the pressurizing device. 11 In the pressurizing device according to claim 10, a number of sleeves 24 corresponding to the number of insertion positions are provided, and these sleeves are connected to the tubular body 2.
A pressurizing device, characterized in that the tubular body is connected to a disc-shaped, cross-shaped, or star-shaped carrier 8. 12. The pressurizing device according to claim 10, wherein the thrust rod 25 or the sleeve 24 has a conical shape.