JPS6119920Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a masking tape cutting device used for partially plating a long strip along its longitudinal direction, and in particular, a masking tape cutting device that sets a plurality of cutting blades on one axis and cuts the masking tape in a long strip along its length. The present invention relates to a device for simultaneously cutting a length of masking tape into a plurality of tapes each having a desired width.

As is well known, when masking tape is applied to a long strip and the masking tape is removed from the parts that require plating, there are two types of cutting: one is cutting before applying the masking tape to the strip, and the other is cutting after it has been pasted. There is,
Blades for cutting are broadly classified into fixed cutters (razor-like blades) and shaft-supported roll blades.

When using fixed cutters, the adhesive layer of the masking tape adheres during cutting, reducing the cutting ability, or causes the adhesive to become stringy, causing it to adhere to the part of the strip that should be plated. Furthermore, mechanical wobbling of the blade tends to occur, making it difficult to perform accurate cutting.

In order to avoid such drawbacks of fixed cutter means, a means using roll blades has been proposed.

However, even with this method using roll blades, when cutting is performed before pasting masking tape, the masking tape is run between the cutter roll and the receiving roll, but each roll should be parallel to the other. If the spacing between the shafts is misaligned, incomplete cutting will occur, making it impossible to peel off the insoluble portion of the masking tape.

In order to prevent cutting defects caused by such discrepancies in the axis spacing between the cutter roll and receiving roll, a groove is provided in the receiving roll at a position corresponding to the cutting roll so that the cutting edge of the cutting roll is always located within the groove. A means configured to do so has been proposed. However, the cutting roll and the grooves on the receiving roll must always have a constant positional relationship, and if the cutting width is changed, the receiving roll itself must be replaced with a receiving roll with a corresponding groove. It was something that should not have happened. In addition, because the cutting edge of the cutter roll is located in the groove, the adhesive layer of the masking tape adheres to the side surface of the cutter roll during cutting, causing stringiness and leaving glue on the cut end of the masking tape. And in addition,
Since the method using a roll blade performs a cutting action by pressing, there is no support for the blade, and the blade is not sharp.

On the other hand, when cutting masking tape after pasting, the pressing force of the roll blade to cut the masking tape can damage the strip itself if it is applied to a strip of copper or the like. This was enough force to make it impossible to achieve the desired performance as a product. In addition, when plating multiple stripes on a strip, it is necessary to cut the masking tape into multiple strips and paste them, so multiple cutter rolls are required. Due to the above-mentioned discrepancies in the distance between the roll axes, the contact distance between each cutter roll and the receiving roll is not uniform, which tends to make it difficult to perform uniform cutting.

Therefore, cutting devices for cutting each strip, for example, for two stripe plating, four sets of cutting devices (or two sets of devices with two roll blades) are arranged in sequence. The cutting width of each strip and the spacing between each strip had to be adjusted at the same time.

Therefore, the present invention eliminates the drawbacks of the prior art as described above, and even when plating a large number of stripes,
To provide a new cutting device capable of accurately and simultaneously cutting masking tape into multiple strips at the same time.

Therefore, the cutting device of the present invention includes a roll holder that rotatably supports a shaft to which a plurality of cutter rolls are attached at intervals, and a roll holder that rotates the roll holder in a direction perpendicular to the axial direction and rotational direction of the shaft. a frame supported on the cutter roll, a receiving roll for the cutter roll, and a pasting roll for pasting the masking tape cut through the cutter roll and the receiving roll onto the elongated strip; It is characterized by being the same roll as the receiving roll.

Here, in the present invention, a roll holder rotatably supports a shaft to which a plurality of cutter rolls are attached at intervals, and the roll holder is rotated in a direction orthogonal to the axial direction and rotational direction of the shaft, respectively. Due to the presence of a supportable frame, it is possible to precisely position each cutter roll so as to uniformly abut the receiving roll.

In addition, in the present invention, as described above, since the masking tape application roll is the same roll as the receiving roll, the multiple strips of masking tape produced by cutting between the cutter roll and the receiving roll are held as they are with the receiving roll. The tape can be immediately and accurately attached to a long strip while maintaining its positional relationship. This makes it possible to perform plating with high dimensional and positional accuracy when plating multiple stripes on one strip.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 and 2 are diagrams showing an outline of a cutting device according to an embodiment of the present invention, in which cutting is shown to be performed immediately before pasting a masking tape 2 to a strip 1. A plurality of cutter rolls 3 (in the illustrated case, four for two-row stripe plating) are mounted on a shaft 5 with a predetermined distance from each other by spacers 4, and both ends of the shaft 5 are attached to roll holders. The strip 1 is supported rotatably in the running direction by a bearing 7 provided on the opposite wall of the strip 1 .

Further, the roll holder 6 is supported by a support frame 10 with pins 8 so as to be rotatable in directions perpendicular to the axial direction and rotational direction of the shaft 5, respectively.

The receiving roll 9 provided opposite to the cutter roll 3 is also a roll for applying the masking tape 2.

Therefore, the receiving roll 9 is provided so as to contact the cutter roll 3 and the strip 1, respectively.

In the cutting device of the present invention constructed as described above, the strip 1 passes between the pasting roll/receiving roll 9 and the pasting roll 11 and runs from the left to the right in the drawing, while the masking tape 2 After passing between the cutter roll 3 and the receiving roll 9 and being cut to the required dimensions, the material is guided to the receiving roll 9 and pasted onto the strip 1 between the receiving roll 9 and the pasting roll 11. .

When cutting the masking tape 2 using the cutter roll 3 and the receiving roll 9,
In order to make the outer diameter of multiple cutter rolls mounted on one axis uniform, all the cutter rolls are usually polished at the same time, but the finishing error exceeds the allowable error range. If the cutter roll 3 and the receiving roll 9 have deviated from each other, or if there is even a slight inclination in the parallelism of the rotation center axes of the cutter roll 3 and the receiving roll 9 (in conventional equipment, multiple cutter rolls provided on one axis It is not possible to cut the masking tape at the same time because it cannot be adjusted to ensure uniform contact.) The roll holder 6 that supports the cutter roll 3 is attached to the pin 8.
This operation (such as swinging both ends of the shaft) can rotate in directions orthogonal to the axial direction and rotational direction of the shaft 5, respectively, using the shaft as a supporting axis.
This makes it possible to adjust so that each cutter roll 3 can always uniformly abut against the receiving roll 9, thereby ensuring simultaneous cutting of masking tape.

As described above, the masking tape cutting device of the present invention includes a roll holder that rotatably supports a shaft to which a plurality of cutter rolls are attached at intervals, and a roll holder that rotatably supports a shaft to which a plurality of cutter rolls are attached at intervals. Since the cutter roll is equipped with a frame rotatably supported in directions orthogonal to each direction, by adjusting the position by rotating the roll holder, it is possible to easily adjust the position of each cutter roll so that it is always in uniform contact with the roll. It is possible to perform simultaneous cutting of tapes reliably, there is no need to prepare separate cutting devices for each number of strips of masking tape divided as in the past, and it can contribute to reducing the diameter of the entire line. This can improve accuracy.

Further, according to the present invention, since the masking tape application roll is the same roll as the above-mentioned receiving roll, the plural strips of masking tape separated between the cutter roll and the receiving roll can be held as they are with the receiving roll. Since it can be applied precisely to the strip while maintaining the positional relationship, it is possible to perform partial plating with high dimensions and positional accuracy, making it possible to produce high-quality products.

According to the above-mentioned embodiment, the roll holder having the cutter roll is attached by a pin, so that the cutter roll can be replaced by attaching and detaching the pin, so that so-called cassette formation can be easily accomplished.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of a cutting device according to an embodiment of the present invention, and FIG. 2 is a front view of the device shown in FIG. 1...Striae, 2...Masking tape, 3...
cutter roll, 5... shaft, 6... roll holder, 8... pin, 9... receiving roll, 10...
...Support frame.

Claims (1)

[Scope of utility model registration request] A masking tape cutting device that cuts a masking tape used when partially plating a long strip along its longitudinal direction into a desired width and affixes it to the long strip, which cuts a plurality of cutter rolls. a roll holder that rotatably supports shafts attached at intervals; a frame that rotatably supports the roll holder in directions orthogonal to the axial direction and rotational direction of the shaft; and a receiving roll for the cutter roll;
It consists of a pasting roll for pasting a plurality of strips of masking tape cut through between the cutter roll and the receiving roll onto a long strip, and the pasting roll is the same roll as the receiving roll. Cutting device for masking tape.