JP2564807Y2 - Axle distance adjustment mechanism in slitter unit - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention is intended to adjust and maintain the distance between a fixed shaft and a movable shaft of a slitter unit used for cutting a sheet-like member such as a magnetic tape, paper, or metal foil (plate). The improvement of the structure.

[0002]

2. Description of the Related Art FIG. 3 is a view showing the structure of a conventional slitter unit. The slitter unit shown in FIG. 1 includes a fixed shaft 2 and a movable shaft 4. Both ends of the fixed shaft 2 are rotatably supported by fixed bearing boxes 6 and 6, and both ends of the movable shaft 4 are movable. It is rotatably supported by bearing boxes 8,8.

[0003] These bearing boxes 6,6,8,8
Is composed of a bearing portion and a casing portion that covers the outer peripheral portion of the bearing portion, and can have various configurations for the detailed structure.

Further, the fixed bearing boxes 6 and 6
The movable bearing boxes 8, 8 are provided so as to be slidable in the vertical direction with respect to the fixed bearing boxes 6, 6, while being fixed to the entire system of the slitter unit. The distance between the fixed bearing boxes 6 and 6 is adjusted and held by the plate-shaped spacers 10 and 10 interposed therebetween, so that the distance between the fixed shaft 2 and the movable shaft 4 is adjusted and held. Has become.

[0005] By adjusting the thickness of the plate-like spacers 10, 10, the rotary cutting blades 12 attached to the outer periphery of the fixed shaft 2 and the rotary cutting blades 1 attached to the outer periphery of the movable shaft 4 are adjusted.
4 are engaged with each other, and in this state, a sheet-like member is passed between the fixed shaft 2 and the movable shaft 4 while giving a relative rotational movement between the two, whereby a cutting process of a predetermined width is performed. It has become. The rotary cutting blades (hereinafter referred to as "cutting blades") 12 ..., 14 ... can be mounted in various shapes.

[0006]

By the way, in the conventional device in which the center distance is adjusted and held by using the plate-like spacer as described above, when the outer diameter of the upper and lower cutting edges is polished again, In addition, the plate-shaped spacer must also be accurately ground to a predetermined thickness, and there is a problem that workability is poor.

[0007] In addition, when changing the meshing allowance (engagement amount) of the upper and lower cutting blades, it is necessary to grind the plate-shaped spacer to a predetermined size or to prepare a spare spacer each time. In this respect, improvement was also required.
An object of the present invention is to solve the above problems.

[0008]

According to the present invention, an inter-axis distance adjusting mechanism in a slitter unit has a fixed shaft rotatably supported at both ends by fixed bearing boxes, and is capable of approaching or separating from the fixed shaft. And a movable shaft rotatably supported at both ends thereof by a movable bearing box. The sheet-shape is formed by the cooperative operation of rotary cutting blades respectively mounted on the outer periphery of the fixed shaft and the movable shaft. In a slitter unit for cutting a member into a fixed width, at least one elongated hole extending from one end to the other end is formed at each of both ends of the fixed shaft and the movable shaft. A guide member which is fixed to the fixed bearing box and whose long hole portion is bolted to the movable bearing box. And it is characterized in and.

[0009]

In the inter-axis distance adjusting mechanism of the slitter unit according to the above configuration, the bolt for fixing the movable bearing box to the guide member is loosened, and the movable bearing box is slid in the longitudinal direction of the elongated hole.
By tightening, the distance between the fixed shaft and the movable shaft is adjusted to an arbitrary value.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view showing an inter-axis distance adjusting mechanism (hereinafter, referred to as an "inter-axis distance adjusting mechanism") in a slitter unit according to an embodiment of the present invention, and FIG. It is a side view. The basic configuration of the slitter unit to which the inter-axis distance adjusting mechanism of the present invention is applied is the same as that shown in FIG.

In FIG. 1, reference numeral 16 is a fixed axis, and reference numeral 1
Reference numeral 8 denotes a movable shaft, and a rotary cutting blade is attached to an outer peripheral portion of each shaft similarly to the one shown in FIG. 3 (not shown). One ends of the fixed shaft 16 and the movable shaft 18 are rotatably supported by a fixed bearing box 20 and a movable bearing box 22, respectively. The configuration of the other end side of the fixed shaft 16 and the movable shaft 18 is the same as the configuration of the one end side, and therefore is not shown in FIG. 1 and the description thereof is also omitted.

The bearing boxes 20 and 22 are
It is the same as that shown in FIG. 3 and includes a bearing for rotatably supporting the shafts 16 and 18 and a casing for covering the outer periphery of the bearing. The fixed bearing box 20 is provided fixed to the entire system of the slitter unit, and the movable bearing box 22 is provided slidably with respect to the fixed bearing box 20 in the vertical direction. The movable bearing box 22 provided on one end side and the movable bearing box provided on the other end side (not shown) are connected by a lower brace 23 so as to move up and down in unison.

Incidentally, between the fixed bearing box 20 and the movable bearing box 22, four springs whose one ends are fixed on the fixed bearing box 20 are arranged (not shown). Care has been taken to facilitate the vertical movement of the bearing box 22.

On the front and back surfaces of the fixed bearing box 20 and the movable bearing box 22, rectangular plate-like grooves 24 are formed along the vertical direction, respectively. Guide members 26 each having a substantially rectangular plate shape are mounted. Therefore, the guide member 26 including the other end (not shown) is provided in a total of four units. Each of these guide members 26
Is an upper brace 28 fixedly installed on the upper part of the unit.
And fixed firmly between the upper brace 28 and a fixing plate 30 laid below the unit.

As shown in FIG. 1, each of the guide members 26 has four bolt holes 32 at one end (upper and lower sides in FIG. 1).
Are formed, and four long holes 34 are formed on the other end side. Each of the long holes 34 is formed so that the longitudinal direction thereof is directed from one end side of the guide member 26 to the other end side (the vertical direction in FIG. 1). Each guide member 26 has one end fixed to the fixed bearing box 20 by a bolt 36 screwed into each bolt hole 32, and the other end movable by a bolt 38 inserted into each long hole 34. It is fixed to the bearing box 22.

An operating screw 40 for moving the movable bearing box 22 up and down by the forward and reverse rotation of the unit and a digital type for measuring a moving amount of the movable bearing box 22 with respect to the fixed bearing box 20 are provided on the upper part of the unit. A dial gauge 44 is provided.

In the inter-axis distance adjusting mechanism according to the above configuration, the movable bearing box 22 is connected to the guide members 2 on both sides.
The bolts 38 fixed to 6 are loosened, and the operating screw 40 is rotated while measuring the scale of the dial gauge 44 in this state to adjust the distance between the fixed shaft 16 and the movable shaft 18. It goes without saying that the above operation is performed on both the one end side and the other end side of the fixed shaft 16 and the movable shaft 18.

When the distance between the shafts becomes a desired value, the bolts 38 are tightened to fix the movable bearing box 22 to the guide member 26. This allows
The movable bearing box 22 is firmly fixed at a predetermined distance from the fixed bearing box 20, and the movable shaft 18 is also stably supported.

According to the above-described inter-axis distance adjusting mechanism,
The plate spacer interposed between the fixed bearing box and the movable bearing box as shown in FIG. 3 becomes unnecessary.

Therefore, even when the upper and lower cutting blades mounted on the outer periphery of the fixed shaft 16 and the movable shaft 18 are polished again, there is no need to perform a complicated operation such as grinding of the plate-like spacer, and it is easy and quick. In addition, the distance between the shafts can be adjusted, and the meshing allowance of the upper and lower cutting blades can be easily adjusted, so that the workability can be significantly improved.

Conventionally, when a plate-shaped spacer was used, the combination of the fixed shaft and the movable shaft was not changed due to complicated adjustment of the distance between the shafts. According to the inter-axis distance adjusting mechanism, the fixed shaft and the movable shaft can be arbitrarily combined, and the use cost of the slitter unit can be reduced.

[0022]

As described above, according to the inter-axis distance adjusting mechanism in the slitter unit of the present invention, the plate spacer conventionally interposed between the fixed bearing box and the movable bearing box becomes unnecessary. In addition, it is possible to quickly respond to a change in the outer diameter of the rotary cutting blade mounted on each shaft, easily adjust the meshing allowance of the upper and lower rotary cutting blades, and remarkably improve workability.

[Brief description of the drawings]

FIG. 1 is a front view showing an inter-axis distance adjusting mechanism according to an embodiment of the present invention.

FIG. 2 is a side view of the inter-axis distance adjusting mechanism of FIG. 1;

FIG. 3 is a front view showing a structure of a conventional slitter unit.

[Explanation of symbols]

 Reference Signs List 16 fixed shaft 18 movable shaft 20 fixed bearing box 22 movable bearing box 26 guide member 34 long hole 38 bolt

Claims (1)

(57) [Scope of request for utility model registration] 1. A fixed shaft whose both ends are rotatably supported by a fixed bearing box, and which are provided so as to approach or separate from the fixed shaft, and both ends are rotatably supported by a movable bearing box, respectively. A movable shaft, and a slitter unit that cuts a sheet-shaped member to a fixed width by the cooperative operation of rotary cutting blades mounted on the outer periphery of the fixed shaft and the movable shaft, respectively. At least one elongated hole extending from one end to the other end is formed on each of the two ends of the movable shaft, and one end of the elongated hole is fixed to the fixed bearing box. An inter-axis distance adjusting mechanism for a slitter unit, comprising a guide member fixed to a movable bearing box by bolts.