JPS61166468A - Tape cutting device - Google Patents

Abstract

PURPOSE:To permit the feed free from meandering by attaching a suspension piece suspended at the vertical angle part of an isosceles triangular guide member onto the bent part of a cut article folded into two parts and allowing the guide assistance in throttling by the guide assisting members. CONSTITUTION:A cut article A folded into two parts along the longitudinal direction at the center is allowed to pass in two-folded state between a pair of guide assisting members 13a and 13b of an isosceles-triangular guiding member 11, and a vertical angle part 11a and a suspension piece 12 suspended from the vertical angle part 11a are attached onto the center folding line from the inside of the cut article A. Then, the vertical angle 11a and the suspended piece 12 receives the holding action of a pair of guide assisting members 13a and 13b, and the cut article A can be developed to one piece free from meandering. The cut part A developed by the guide member 11 is guided between a pair of collars 15a and 15b of a tension rod 15 and cut to prescribed number of pieces of tapes by a cutting tool, and taken-up.

Description

Detailed Description of the Invention <Industrial Application Field> The present invention relates to a tape cutting device for cutting a long cloth or sheet-like object into a tape, and in particular, a tape cutting device that cuts a long cloth-like or sheet-like object into a tape, and in particular, a tape cutting device that cuts a long cloth-like or sheet-like object into a tape. A tape cutting device configured to prevent meandering of an object to be cut by bringing the apex angle of a guide member forming an isosceles triangular shape and a hanging piece of this portion into contact with a bent portion from the inside of the object to be cut. Regarding.

<Prior Art> Conventionally, as a means for preventing meandering in this type of tape cutting device, the conveying state is detected by a phototube sensor disposed at the edge of the transferred object to be cut, which is widely used in sewing devices. A cross guider that prevents meandering by providing appropriate transfer resistance was used.

<Problems to be Solved by the Invention>By the way, with such conventional meandering prevention means,
In addition to complicating the structure of the tape cutting device and increasing costs,
This has the drawback of limiting the transfer speed and limiting tape productivity.

<Means for Solving the Problems> The present invention solves the above-mentioned problems, and the details thereof will be explained below using FIG. 1 corresponding to an embodiment.

The plural cutting blades 23 of the cutting means 20 cut a long cloth-like or sheet-like object A that is fed and driven by the feed drive means 30 including the press roller 32 and the rotary drive roller 31.
The guide means 10 used in the tape cutting device d1, which cuts the tape into a plurality of tapes T by the cutting tool 23 equipped with a, is disposed upstream of the cutting means 20 and corresponds to the equilateral sides of an isosceles triangle. A guide member 11 having a peripheral edge and a hanging piece 12 provided at the apex corner 11a, and a bisector of the apex angle of an isosceles triangle located near the bottom of the guide member 11 on the upstream side in the transport direction. A pair of guide auxiliary members 1 arranged so as to be sandwiched between
3a and 13b, and the guide member 11
Meandering is prevented by bringing the isosceles triangular apex portion 11a and the hanging piece 12 into contact with the bent portion a.

Therefore, the present invention has a very simple structure and low cost.
Another object of the present invention is to provide a tape cutting device equipped with a guide means that has excellent meandering prevention performance even when the conveyance speed of the object to be cut is high.

<Operation> The object to be cut, which is folded in two along the longitudinal direction at the center, is passed between a pair of guide auxiliary members in the state of being folded in two, and the apex angle and core of the guide members forming an isosceles triangular shape are 2.
When the folded object is brought into contact with the center fold line from the inside to cover it, these apex angles and hanging pieces of the guide member are held by the pair of guide auxiliary members, and the wedges are formed into two sheets. This method pushes open the folded item into a single unfolded item while keeping the fold line always in contact with the apex and hanging piece.It has an extremely simple structure and can be cut over a wide range of movement. Effectively prevents meandering over the entire length of time.

<Example> ! An embodiment of the present invention will be described below.

The tape cutting device l of this embodiment flattens a circular knit woven into a long cylinder as shown in the first factor and FIG. To form a striped pattern of an appropriate width, for example, for training wear, along the longitudinal weave lines using a long knitted cloth A that is folded in two at the exact center. A machine 2 having a substantially rectangular parallelepiped shape is provided with guide means 10 sequentially disposed on the front side of the machine 2 toward the downstream side in the traveling direction of the object A to be cut. The cutting means 20 is placed on the top side of the machine stand 2, the feeding drive means 30 is placed on the back side of the machine stand 2, and the winding means 40 is brought into contact with the feeding drive means 30 and driven to rotate as shown in FIG. It is composed of.

As shown in detail in FIG. 3, the guide means 10, which constitutes a characteristic structure of the present invention, has an equilateral part of an isosceles triangle whose base angle is 45° horizontally from both sides of the middle part of the front surface of the machine base 2. A guide member 11 made of a steel rod and having a substantially “H” shape forming an apex corner, a hanging piece 12 made of a thin plate hanging from the apex corner 11a, and a lower part of the guide member 11. A pair of first guide auxiliary members 13a and 13b made of steel rods protruding in parallel at a small distance from each other up to the vicinity of the top corner 11a so as to sandwich the hanging piece 12 in the vicinity, and the first guide auxiliary members 13a,
A pair of second guiding auxiliary members 14a and 14b made of steel rods protrude in parallel with an interval equal to the width of the cloth A folded in two approximately vertically downward from the second guide member 13b, and the base of the isosceles triangle is equivalent to the second guide members 14a and 14b. The tension rod 15 is horizontally suspended over the fastening portion of the guide member 11, and has a pair of removably inserted collars 15a and 15b. The apex portion 11a and the hanging piece 12 are smoothly chamfered so as not to damage the cloth even if they come into contact with the inner folded portion a of the traveling cloth A. The pair of collars 15a and 15b are set at intervals corresponding to the width of the unfolded cloth A, and indirectly serve to prevent meandering.

The cutting means 20 includes a relatively large-diameter metal roller 21 that plays the role of a cutting table with a hardened surface, which is rotatably supported in a horizontal direction above the top surface of the machine stand 2 via a bearing.
The metal roller 21 is rotatably supported via bearings provided on the side columns 22a and 22b, and a pedestal 22 has a guide rail 22c horizontally suspended above the metal roller 21 in parallel along the axis, and the guide rail 22c is cut into the pedestal 22. It is composed of a plurality of cutting tools 23, which are installed at both front and rear sides so that the intervals can be adjusted according to the number of tapes. In this embodiment, the cutting tool 23 includes a round blade 23a having an obtuse cutting edge and a supporting shaft protruding from both sides of the center, and the round blade 23a is held via a rolling saw bearing. A holding member 23b, a moving member 23c that is connected to the holding member 23b and swings the round blade 23a between a cutting position and a non-cutting position, and a moving member 23c that swingably supports and moves these holding members 23b. A base body 23e that articulates the member 23c, engages with the guide rail 22c, and is fixed by a fixing screw 23d, and an adjustable biasing force that urges the round blade 23a onto the guide rail 22c via the holding member 23b. and a power means 23f.

As shown in FIGS. 2 and 4, the feed drive means 30 includes a rotary drive roller 31 whose surface is lined with rubber, which is rotatably supported above the back side of the machine base 2, and the rotary drive roller 31. The surface is lined with rubber, which is placed on the metal roller 21 by its own weight, is rotatably supported by a frame 32m, and is urged to come into contact with the metal roller 21 by a spring 32b between the frame 32a and the machine stand 2. The press roller 32 and the rotary drive roller 31 together with the metal roller 21
and a drive mechanism 33 that rotationally drives the motor in a variable speed manner. The press roller 32 is rotatably supported in a substantially L1-shaped metal frame 32a via a bearing so as to be freely movable in the longitudinal direction. Both ends of the frame 32a are swingably supported by the machine base 2 via levers 32c, and each end is connected to a spring 32b which connects one end to the machine base 2. By pulling and lifting the frame 32a, each city A can be easily passed between the metal roller 21 and the press roller 32, and between the rotary drive roller 31 and the press roller 32.

Therefore, as shown in detail in FIG.
When the press roller 32 is set, the metal roller 21
The cloth A is sandwiched between the cloth A and the rotary drive roller 31 at the driving contact position, and the cloth A is fed and driven.
A configuration is adopted in which the press roller 32 contacts an arc of the press roller 32 between two driving contact positions. According to this feed drive configuration, even if the cloth A is cut into a tape shape, there is no part that travels in the air, and extremely stable feeding is possible, which is more effective in preventing meandering. Conventionally, a combination of a press roller and a rotary drive roller has been widely used as a feed drive means for feeding and driving a long sheet material. This has a great effect in feeding the rolled material to the winding means 40 in an aligned state without any disturbance. The drive mechanism 33 includes a timing pulley 33a fixed to the rotating shaft of a variable speed motor M whose rotation speed is controlled by a speed setting knob B, and a timing pulley 33b fixed to the spindle of the metal roller 21. , a timing pulley 33c fixed to the spindle of the rotation drive roller 31
and these timing pulleys 33a, 33b,
Timing belt 3 wrapped around 33c
3d, and a tension pulley 33e for tensioning the timing belt 33d between the timing pulleys 33b and 33c, so that the timing belt 33d rotates clockwise in FIG. Drive rotation.

The winding means 40 includes a winding stand frame 41 which is pivotally supported by a swinging number at a fulcrum in the lower part of the machine stand 2 and is urged toward the machine stand 2 by a spring 41a,
1, and a winding rod 42 which is rotatably supported at the upper end of the roller 31 via a bearing so as to freely move and come into contact with the rotary drive roller 31. The tape T wound around the winding rod 42 is brought into contact with the rotary drive roller 31 by the spring 41a, so that it is rotated, and in synchronization with the rotary drive means 30, the tape T is rotated as the diameter gradually increases. The take-up frame 41 slopes backwards to accommodate the increasing diameter.

Above the guide member 11 on the front side of the machine stand 2, a tension rod 3, which is used to cut a sheet material into a tape shape using an HA laser, is further suspended horizontally.

<Effects of the Invention> As described above, according to the tape cutting device 1 of the present invention, the isosceles triangular shape protruding from the front side of the machine base 2, which corresponds to the upstream side of the feeding direction of the material to be cut, is The hanging piece 12, which is placed over the apex corner 11a and the core of the guiding part Ull, is brought into contact with the folded part a of the object to be cut A which has been folded in two from the inside, and is pushed open by the guiding member 11. Since the object to be cut A is fed and driven to travel without performing guidance assistance for narrowing down by the guidance auxiliary members 13a and 13b disposed near the bottom of the member 11, the very simple process described above is performed. The structured guide means 1O has the remarkable effect of making it possible to feed the cut object A in a straight line without meandering over a wide range of feed drive speeds.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the tape cutting device of the present invention;
The figure is a right side view of the same, FIG. 3 is a perspective view showing the guiding means of the same device, and FIG. 4 is an explanatory diagram showing the arrangement of each roller of the driving means of the same device. (Explanation of symbols) 1... Tape cutting device, 2... Machine stand, 10...
Guide means, 11... Guide member, lla... Vertical corner portion, 12... Drooping piece, 13a, 13b... Guide auxiliary member, 20... Cutting means, 21... Cutting, A.
...Object to be cut, T...tape. Applicant Monthly Shokai Co., Ltd. Agent Patent Attorney (6235) Hidehiko Matsuno - Above

Claims (1)

[Claims] 1. In a tape cutting device that cuts a long object to be cut, which is driven by a feeding drive means and transported in a linear direction by a guide means, into a plurality of tapes by a plurality of cutting tools of the cutting means, the above-mentioned a guide means is disposed on the upstream side of the cutting means in a direction in which the object to be cut is transported;
A guide member having edges corresponding to the equal sides of an equilateral triangle and having a hanging piece at the apex portion, and a bisector of the apex angle of the isosceles triangle located in the lower vicinity of the upstream side of the guide member. and a pair of guide auxiliary members disposed so as to cross each other, and the apex corner and hanging piece of the isosceles triangle of the guide member are folded in two along the longitudinal direction at the center and are fed from the inside of the object to be cut. 1. A tape cutting device characterized in that the tape is prevented from meandering by bringing the tape into contact with the bent portion.