JPH02109818A - Folder of ear edge - Google Patents

Abstract

PURPOSE:To extremely facilitate a folding operation of the edges of a rolled article and keep a constant quality thereof, by providing a couple of freely rotary support axes and appropreate numbers of radially extending protrusions at the opposite sides of supporting members which are fitted at the right and left sides of said first support axes. CONSTITUTION:An article to be worked with ears 10 at the both edges is placed between support axes 2a and 2b. The support axis 2a and supporting members 4a, 4b are rotated by driving a revolutional means 3 and said respective supporting members 4a, 4b are brought closely to the article 11 to be worked by driving transfer means 5a, 5b. In this state, said article 11 is rotated reversely against the direction of said supporting members 4a, 4b. When the radially extending protrusion 6 provided in the supporting member 4 comes into contact with the both ear edges 10 of the article 11, both edges are bent toward the center of the rolled article 8 with revolution of the protrusion 6 and finally folded completely around the periphery of the rolled articles 8.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for folding the ends of a protective wrapping paper for wrapping a roll-shaped article, such as a newspaper roll.

(Prior Art) A roll-shaped article a such as a newspaper roll as shown in FIG. In this case, as shown in Figure 4(b), a slightly wider wrapping paper C is wrapped around the circle-shaped article a, and the overhanging part of the wrapping paper C at both ends, that is, gd. After forming, the tab d was manually folded inward as shown in FIG. 3(C).

(Problems to be Solved by the Invention) As mentioned above, in the past, bending of the edges d was done manually each time, which was time-consuming, especially when the roll-shaped article a was a newspaper roll or the like. It is bulky and heavy, which makes it especially troublesome. Another problem is that the quality of the work is inconsistent, depending on the degree of maturity of the Ministry of Works.

The present invention aims to solve these problems.

(Means for Solving the Problems) To explain the configuration of the present invention based on FIGS. 1 to 5 corresponding to embodiments, the edge folding device 1 of the present invention includes a pair of rotatable supports Shafts 2 (2a, 2b) are provided in parallel at appropriate intervals, and the first support shaft 2a is rotated by a rotation means 3, and on the outside of the first support shaft 2a, A pair of left and right support members 4 (4a, 4b) which are movable in the axial direction and interlocked in the rotation direction are fitted, and these support members 4a, 4b are each independent moving means 5 (5a).
.

5b) to move along the first support shaft 2a, and an appropriate number of radial protrusions 6 are provided on opposite sides of each support member 4a, 4b.

(Actions and Examples) The operation of the present invention will be explained with reference to examples.

First, as shown in FIG. 1, the moving means method in which the support members 4a and 4b are moved along the first support shaft 2a, as shown in FIG.
As shown in a), a wrapping paper 9 is wrapped around a roll-shaped article 8 such as a newspaper roll, and a workpiece 11 with ears 10 formed on both ends of the workpiece 11 is placed on its side, and the support member 4 is
It is placed between support shafts 2a and 2b in the space sandwiched between support shafts 2a and 4b. Then, the moving means 5 is driven while rotating the supporting shaft 2a and the supporting members 4a and 4b by driving the rotating means 3 of the supporting shaft 2a, which is composed of a motor 12, a gear 13, etc.
A and 5b are driven to bring each of the support members 4a and 4b closer to the workpiece 11. In this state, the workpiece 11 is supported at one lower side by the rotatable support shaft 2b, and at the other by the support shaft 2a which is rotated by the rotation means 3. As shown in FIG. 4, the workpiece 11 is rotating in the opposite direction to the supporting members 4a, 4b.

Therefore, the support members 4a and 4b are further attached to the workpiece 1.
1, as shown in FIG. 3(b), the support member 4
fig (the pair of protrusions 6 is
When the protrusion 6 is brought into contact with both ends of the protrusion 6, the protrusion 6 rotates and bends the lug 10 of the workpiece 11 toward the center of the roll-shaped article 8. At this time, the roll-shaped article 8 is also rotating in the opposite direction to the protrusion 6, so that it finally ends up as shown in FIG.
As shown in C), over the entire circumference of the rolled article 8,
It is difficult to fold the ears 10 neatly.

As shown in FIG. 5, the ears 10 bent in this manner uniformly cover the entire circumference of the end of the rolled article 8, thereby protecting the end from dirt and scratches.

Note that when the protrusion 6 engages with the workpiece 11 and bends +1410 as described above, the protrusion 6 and the L
If the relative speed to the pot 11 is too fast, the wrapping paper 9
It is necessary to set the relative speed between the protrusion 6 and the workpiece 11 to an appropriate value, because problems such as breakage may occur, and on the other hand, if the speed is too slow, the work efficiency will deteriorate. This can be done by changing the diameter of the first support shaft 2a depending on the diameter of the workpiece 11.

<Effects of the Invention> As described above, the folding device of the present invention can mechanically perform edge folding work to protect the edges of roll-shaped articles such as newspaper rolls, thereby saving time and effort. Moreover, even bulky or heavy items can be placed on the support shaft without having to be lifted or rolled by hand.
Since the work is completed, there is an effect that the selvedge folding work can be made extremely easy. Furthermore, since this can be done mechanically, the quality of the workmanship is not affected by individual differences, and a certain level of quality can be maintained.

[Brief explanation of the drawing]

1 to 5 correspond to embodiments of the present invention, FIG. 1 is an explanatory perspective view, FIG. 2 is a plan view including a partial cross section of the main part, and FIG. 3(a), (b) and (C) are state transition explanatory perspective views for detailed explanation of the present invention, FIG. 4 is a sectional view taken along line A-A in FIG. 3(a), and FIG. 5 is a workpiece. Perspective view of completed machining, Figures 6(a) and (b)
, (c) is an explanatory perspective view of the state transition of the conventional example. Reference numerals 1... Edge folding device, 2 (2a, 2b)... Support shaft, 3... Rotating means, 4 (4a, 4b)... Supporting member, 5... (5a, 5b) ...Means of transportation, 6...
- Radial protrusion, 7... Hydraulic cylinder, 8... Roll-shaped article, 9... Wrapping paper, 10... Ear, 11...
Workpiece, 12...Motor, 13-17.14-,
, Fu-')-a? s-phase, IE...Kai-nai groove, 1G.
・・Tsuyukyo.

Claims (1)

[Claims] A pair of rotatable support shafts are provided in parallel with an appropriate interval, and the first support shaft is rotated by a rotation means, and a A pair of left and right support members that are movable in the axial direction and interlocked in the rotation direction are fitted together, and the support members are moved along the first support shaft by independent moving means, and each of the support members is moved along the first support shaft by independent moving means. An edge folding device characterized in that an appropriate number of radial protrusions are provided on opposite sides of a support member.