JPH079855U - Winding device - Google Patents

Abstract

(57) [Abstract] [Purpose] In the paper winding operation, the paper is rolled up without the need for a paper tube for winding the paper or glue for adhering the paper, and the rolled roll Easily remove the paper from the shaft body. [Structure] A tube 2 that is expanded by the supply of air is provided inside a hollow shaft body 1 that is rotationally driven.
Between the shaft body 1 and the tube 2, a lug 4a protruding from the outer surface of the shaft body 1 due to the expansion of the tube 2.
In a winding device provided with a lug plate 3a provided with a paper receiver 6 for forming a paper insertion portion 5 on the outer surface of the shaft body 1 so as to face the outer end surface of the lug 4a protruding from the shaft body 1.
To provide.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a winding device.

[0002]

[Prior art]

 A tube that expands by the supply of air is installed inside the hollow shaft body that is driven to rotate, and a lug plate that has a lug between the shaft body and the tube that projects from the outer surface of the shaft body due to the expansion of the tube. The winding device provided with is known as, for example, Japanese Utility Model Laid-Open No. 56-10445.

According to this paper winding, first, the air in the tube is discharged and the lug plate is retracted toward the axial center of the shaft body to position the lug inside the outer surface of the shaft body. Insert the shaft main body into the paper tube around which the paper is wound, supply air into the tube and push the lug plate toward the inner circumference of the shaft main body by the expansion of the tube, and push the lug of the shaft main body. After holding the paper core on the shaft body by sticking it out from the outer surface and pressing it against the inner peripheral surface of the paper core, one end of the paper is attached to the paper core, and the shaft main body is driven to rotate so that the paper is placed on the outer circumference of the paper core. It will be rolled up. After the completion of winding, the air inside the tube was discharged, the lug was retracted to the inside of the shaft main body, the pressure of the lug against the paper core was removed, the paper core was removed from the shaft main body, and it was wound around the paper core. Remove the roll-shaped paper.

However, in the conventional paper winding, a paper tube for winding the paper is required, and the lug is a paper tube in consideration of the protrusion amount of the lug protruding the inner diameter of the paper tube from the shaft body. It must be formed so that it can be pressed against the inner peripheral surface of the tube, and in the process of winding the paper, the process of inserting the paper tube into the shaft body and attaching one end of the paper to the outer surface of the paper tube It required a step to be applied and glue to be applied.

[0005]

[Problems to be solved by the device]

 An object of the present invention is to wind a paper in a paper winding operation without needing a paper core for winding the paper or a glue for adhering one end of the paper, and a rolled roll-shaped paper. Provided is a winding device that can be easily separated from a shaft body.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the winding device of the present invention has a tube that is expanded by the supply of air inside a hollow shaft body that is rotationally driven. In the winding device, in which a lug plate having a lug protruding from the outer surface of the shaft body due to the expansion of the tube is provided, the outer surface of the shaft body is opposed to the outer end surface of the lug protruding from the shaft body. The invention is characterized in that a paper receiver that forms a paper insertion portion is provided.

[0007]

[Action]

 When one end of the paper is inserted into the paper insertion part formed by the paper receiver and the outer surface of the shaft body and air is supplied into the tube to expand the tube, the expansion of the tube causes the lug to have a lug. The plate moves outward in the radial direction of the shaft body, the lug of the lug plate protrudes from the outer surface of the shaft body, and the outer end surface of the lug abuts the paper receiver to hold the paper inserted in the paper insertion section. To do.

By rotating the shaft body, the paper is wound around the paper receiver and the shaft body. When the air is exhausted from the tube after the paper is wound, the lug plate moves in the axial direction of the shaft body as the tube shrinks, so that the lug that is in contact with the paper receiver is removed from the paper receiver. One end of the paper that is separated and held becomes the free end. Remove the wound paper from the shaft body by pulling it out along the axial direction of the shaft body.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of the winding device of the present invention, and the winding device 10 includes a shaft body 1 which is rotatably driven by an appropriate driving source at the center thereof. The shaft body 1 is hollow, and inside the shaft body 1, a tube 2 made of an elastic material such as rubber or synthetic resin is arranged along the axial direction, and between the shaft body 1 and the tube 2. Is intervened by a lug plate 3 having a lug 4. Four lug plates 3 are arranged at substantially equal intervals along the circumferential direction of the shaft body 1, and the inner circumference of each lug plate 3a, 3b, 3b, 3b is the outer surface of the tube 2 when the tube 2 expands. The outer circumference is formed in an arc shape so as to follow the inner surface of the shaft body 1, and each lug plate 3a, 3b, 3b, 3b has a lug 4a, 4b protruding radially to the outer surface side thereof. , 4b, 4b.

The shaft body 1 is provided with four insertion holes 11 corresponding to the four lug plates 3a, 3b, 3b, and 3b of the four lug plates 3a, 3b, 3b, and 4b. , 4b, 4b, 4b are respectively inserted into the four insertion holes 11 of the shaft main body 1, and are moved in the insertion hole 11 in the radial direction of the shaft main body 1 by the tube 2 that expands by supplying air. As a result, the outer ends of the four lugs 4a, 4b, 4b, 4b project toward the outer surface of the shaft body 1.

As shown in FIG. 1, on the outer surface of the shaft body 1, one of the four lugs 4 a, 4 b, 4 b, 4 b protrudes from the shaft body 1, and the outer end surface of the lug 4 a 1 And a paper receiver 6 that forms a paper insertion portion 5 formed of a gap between the paper receiver 6 and the outer surface of the shaft body 1. The outer surface of the paper receiver 6 is formed as a circumferential surface, and the inner surface of the paper receiving portion 5 side is formed as a flat surface.

Further, arc-shaped core plate pieces 7, 8 and 9 along the outer peripheral surface of the shaft body 1 are fixed to the outer ends of the remaining three lugs 4 b, respectively. In the state in which the probe 2 is in the retracted state, the inner surfaces of the core plate pieces 7, 8 and 9 contact the outer surface of the shaft body 1, and one end of the core plate piece 7 and one end of the core plate piece 8 contact each other. The other end of the core plate piece 8 and one end of the core plate piece 9 are in contact with each other.

Next, the winding of the paper by the winding device 10 will be described. First, when one end side of the paper is inserted into the paper insertion part 5 and air is supplied into the tube 2, the tube 2 starts to expand, and the outer surface of the tube 2 has four lug plates 3a, 3b, 3b, 3b. By pushing the inner circumference outward in the radial direction, the four lug plates 3a, 3b, 3b, 3b are pushed out, and the outer circumference of each lug plate 3a, 3b, 3b, 3b of the shaft body 1 is pushed. Contact the inner surface.

When this state is reached, as shown in FIG. 2, the outer end surface of the lug 4a comes into contact with the inner side of the paper receiver 6, so that the paper 12 inserted in the paper insertion portion 5 is pinched. Further, the outer peripheral surfaces of the core plate pieces 7, 8 and 9 fixed to the three lugs 4b move to positions where they coincide with the outer peripheral surface of the paper receiver 6.

When this state is maintained and the shaft body 1 is rotated by an appropriate drive source, the tube 2 and the four lug plates 3a, 3b, 3b, 3b and the lugs 4a, 4b, 4b, 4b, the core The plate pieces 7, 8 and 9 and the paper receiver 6 rotate integrally, and the paper forms a substantially circular winding surface formed by the paper receiver 6 and the outer peripheral surfaces of the core plate pieces 7, 8 and 9. It is wound up in a roll along.

At the end of winding the paper, the rotation of the shaft body 1 is stopped, and then the air is discharged from the tube 2. The tube 2 contracts due to the discharge of air, and along with the contraction of the tube 2, the four lug plates 3a, 3b, 3b, 3b move in the axial direction of the shaft body 1.

As shown in FIG. 3, the outer end surface of the lug 4 a that is in contact with the paper receiver 6 is separated from the paper receiver 6 by retracting the lug 4 a toward the axis of the shaft body 1. , One end of the held paper 12 becomes a free end.

Further, the core plate pieces 7, 8 and 9 fixed to the three lugs 4 b, 4 b and 4 b move in the axial direction of the shaft body 1 and the core plate pieces 7, 8 and 9 are moved. Each inner surface abuts on the outer surface of the shaft body 1, and one end surface 7a of the core plate piece 7 and one end surface 8a of the core plate piece 8 shown in FIG. One end surface 9a of the piece 9 abuts as shown in FIG. As a result, the outer peripheral surface of each of the core plate pieces 7, 8 and 9 is separated from the paper wound around the winding surface 13 formed so as to coincide with the outer peripheral surface of the paper receiver 6, and a gap is formed. 14 is formed.

The rolled-up paper 12 ′ is formed by the gap 14 formed between the innermost paper of the wound paper and the outer peripheral surface of each of the core plate pieces 7, 8, 9. It can be easily removed from the shaft body 1 by pulling it out along the axial direction of the shaft body 1.

[0020]

[Effect of device]

 According to the present invention, a tube that is expanded by the supply of air is provided inside a hollow shaft body that is driven to rotate, and a lug that protrudes from the outer surface of the shaft body due to the expansion of the tube is provided between the shaft body and the tube. In a winding device equipped with a lug plate, a paper receiver is provided on the outer surface of the shaft body so as to form a paper insertion portion facing the outer end surface of the lug protruding from the shaft body. Insert one end of the paper into the paper insertion part formed by the outer surface of the tube, supply air into the tube, and move the lug plate with the lug toward the outside of the shaft body in the radial direction by expanding the tube. , The outer end surface of the lug protruding from the outer surface of the shaft main body contacts the paper receiver to hold the paper inserted in the paper insertion section, and then the shaft main body is rotated to drive the paper. Since the outside of the body and the shaft body taking up the paper, it is possible to wind the paper without the need for glue for adhering a paper tube or paper for winding paper.

Further, after the paper is wound up, air is discharged from the tube, and as the tube shrinks, the lug plate moves in the axial direction of the shaft main body, thereby contacting the paper receiver. Since the lug is separated from the paper receiver and one end of the paper held between the lug and the paper receiver is the free end, simply pull out the wound paper along the axial direction of the shaft body. Since it can be removed from the shaft body with, it is only necessary to insert one end of the paper into the paper insertion section and remove the wound paper from the shaft body during the winding work process. The process of inserting the paper tube and the step of sticking one end of the paper to the outer surface of the paper tube can be omitted, and glue for sticking the paper is not required, which shortens the working time and the manufacturing cost. What is possible Is.

[Brief description of drawings]

FIG. 1 is a sectional view of a winding device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a winding device during a paper winding operation.

FIG. 3 is a cross-sectional view showing the winding device at the end of the paper winding operation.

[Explanation of symbols]

 1 shaft body 2 tube 3a lug plate 3b lug plate 4a lug 4b lug 5 paper insertion part 6 paper receiver 7 core plate piece 8 core plate piece 9 core plate piece 10 winding device 11 insertion hole 12 paper 13 winding surface 14 gap

Claims (1)

[Scope of utility model registration request] 1. A tube that expands when air is supplied is provided inside a hollow shaft body that is rotationally driven.
A winding device provided with a lug plate having a lug protruding from the outer surface of the shaft body by expansion of the tube between the shaft body and the tube, wherein the outer surface of the shaft body projects from the shaft body. A winding device provided with a paper receiver that forms a paper insertion portion facing the outer end surface of the lug.