CN2498114Y

CN2498114Y - Paper tube structure for winding belts

Info

Publication number: CN2498114Y
Application number: CN 01232254
Authority: CN
Inventors: 陈彦彣
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-30
Filing date: 2001-07-30
Publication date: 2002-07-03
Anticipated expiration: 2011-07-30

Abstract

The utility model provides a paper tube structure used for rolling belts, which is a tube formed by sleeving an inner tube 10 with an outer tube 20; wherein, the inner tube is formed by rolling banded raw paper layer by layer along an inclined direction, the outer tuber 20, a tube covering the inner tube 10, is formed by rolling banded raw paper layer by layer in a direction which is vertical to the axial direction of the inner tube, a thin layer of wax is coated closely over the outside of the outer tube 20 so that the outer surface of the tube can show the smooth, no convex or concave.

Description

A kind of belt body twines uses the paper tube structure

Technical field

The utility model is meant that a kind of audiotape, video-tape etc. of supplying twine the demanding belt body in surface, avoid injuring the belt body winding paper tube structure on belt body surface.

Background technology

General audiotape, makers such as video-tape utilize paper tube as spool more, and belt bodies such as the audiotape made, video-tape are wound in the paper tube periphery, as shown in Figure 1, the body that pipe 1 and one outer tube, 2 axle sleeves and stickup form in one, wherein, pipe 1 is to form with oblique the coiling layer by layer of the more coarse paper tape of quality in this, and this outer tube 2 is to manage 1 periphery with the oblique winding layer by layer of the more careful paper tape of quality in this to form; In this, manage 1, outer tube 2 is when winding, avoid with the adjacent paper tape of one deck when the oblique coiling for asking, cause the surface owing to overlap each other and form the protruding mound of spiral fashion, so, adjacent paper tape is that the side is leaned on mutually each other when reeling, thus, seam between paper tape and paper tape promptly forms screw-shaped chase 3 on the paper tube surface, if paper tube is applied to twine audiotape, spool during plastic cement belt bodies such as video-tape, because this belt body is when twining, need it is bestowed pulling force, so that this belt body presents suitable pulling-over state, make this belt body when twining very easily since the spiral chase 3 both sides rims in paper tape surface to the relativity power of this belt body, cause this belt body surface damage to form impression, and these relativity power are removed impression are caused on this belt body surface of direct contact paper tube, follow-up being wound in influenced by it all to form these impressions than a few this belt body surface of periphery, and this belt body thickness is thin more, this chase 3 cause impression to influence the number of turns many more, in other words, because this chase 3 on paper tube surface, the audiotape of equivalent length will be caused, the video-tape surface all forms impression, yet, for audiotape, belt bodies such as video-tape, its surface coating magnetic material, make this belt body can be used as sound by this, the carrier of image signal in case this belt body surface forms impression, will influence the signal record, the accuracy rate that reads, utilize this belt body to be made into audiotape in the future, during video-tape, sound will take place, the image distortion problem, and impression also causes damage to reading magnetic head easily, except giving up quite long audiotape, video-tape, can't solve the waste that causes, otherwise have to be with impaired audiotape, video-tape is sold with sub-quality products, is very uneconomic.

Content of the present utility model

The shortcoming that the utility model exists at above-mentioned common paper tube axle provides a kind of belt body to twine and uses the paper tube structure, its outer surface presents smooth and does not have ditch or the relief shape, it is the body that is formed to socket-connecting by an interior Guan Yuyi outer axial tube, wherein, should interior pipe be to form with oblique the coiling layer by layer of banded body paper, outer tube is to manage the tubular body that outer peripheral face forms with banded body paper tubular axis in this to the winding layer by layer of perpendicular direction in this, this outer tube outer peripheral face closely wraps a wax film, forms the paper tube outer peripheral face and is smooth nothing depression or relief shape.

Description of drawings

Fig. 1 is common paper tube spool three-dimensional appearance scheme drawing.

Fig. 2 is a three-dimensional appearance scheme drawing of the present utility model.

Fig. 3 is an end face part enlarged diagram of the present utility model.

1 is that interior pipe, 2 is that outer tube, 3 is that chase, 10 is that interior pipe, 20 is that outer tube, 22 is that second paper tape, 24 is that end line, 26 is that first chamfering, 28 is second chamfering.

The specific embodiment

Shown in accompanying drawing 2 and accompanying drawing 3, the utility model is to manage the body that 10 and one outer tube 20 axially is socketed to form in one, wherein, should interior pipe 10 be to form with oblique the coiling layer by layer of banded body paper, this outer tube 20 be with banded body paper along with this in the axially perpendicular direction windings layer by layer of pipe 10 form in interior pipe 10 outer peripheral faces, and these outer tube 20 outer peripheral faces axially form an end line 24, these outer tube 20 outer peripheral faces closely wrap a wax film (because thickness as thin as a wafer, so not shown in the figures), its paper tube outer peripheral face is smooth nothing depression or relief shape; The thin cured inner edge of this wax is fully clogged in the hole of these outer tube 20 outer peripheral faces in addition.

Again as shown in Figure 3, constitute worn formation one first chamfering 26 of paper tape at both ends difference of outer tube 20, one second chamfering 28, when making this paper tape in being attached at, manage 10 peripheries, the surface that this paper tape end of mat forms this first chamfering is direct and should contact adhesion by interior pipe 10 side faces, and this paper tape is reeled when forming this outer tube 20 these second chamfering, 28 proper and these first chamfering, 26 corresponding matching fully, to form relative complementary state, the formation of confession outer tube 20 outer peripheral faces presents smooth and does not have chase or the relief shape.

Shown in accompanying drawing 2 and accompanying drawing 3, embodiment is the paper tape coiling direction formation outer tube 20 by initiative, and utilize first,

second chamfering

26,28 relative engagement, make outer tube 20 outer peripheral faces be smooth and do not have the chase state and the relief phenomenon of common paper tube, make this paper tube of utilization can be used as audiotape, the spool of the demanding belt body of surface qualities such as video-tape when twining, can't when twining this belt body, cause the impression equivalent damage to its surface, this belt body fully is utilized, increase economic efficiency, and the utility model forms outer tube 20 with the rolling of paper of common papery or coarse papery, also can be by thin cured the wrapping of wax, obtain the smooth paper tube of outer surface, and improve the economic benefit of paper stock and then reduce feed stock cost.

Claims

1, a kind of belt body twines and uses the paper tube structure, it is the body that axially is socketed to form by an interior pipe (10) and an outer tube (20), it is characterized in that interior pipe (10) is to form with oblique the coiling layer by layer of banded body paper, and outer tube (20) be with banded body paper in this pipe (10) axially perpendicular direction winding layer by layer in this, manage the tubular body that (10) outer peripheral face forms, this outer tube (20) outer peripheral face closely wraps a wax film.

2, according to the described a kind of belt body winding paper tube structure of claim 1, the paper tape that it is characterized in that said outer tube (20) forms one first chamfering (26), second chamfering (28) respectively in two ends, and second chamfering (28) just forms relative complementary state with first chamfering (26) corresponding matching.