CN203593436U - Expanding grasping device used in pipe - Google Patents

Abstract

The utility model discloses an expanding grasping device used in a pipe. The expanding grasping device comprises an expansion shaft and a barrel, the expansion shaft is sleeved with the barrel, the barrel is further sleeved with a locating sleeve and an expansion sheet, a left rolling bearing is arranged between the left end of the barrel and the expansion shaft, a right rolling bearing is arranged between the right end of the barrel and the expansion shaft, an end cover is arranged outside the right rolling bearing, an elastic collar, an elastic pin and a connector are sequentially arranged at the position, located outside the left rolling bearing, of the expansion shaft, a guide key is fixed to the end, close to the connector, of the expansion shaft through a bolt, and an elastic body is arranged on the expansion sheet. The expanding grasping device is simple in structure, and no pneumatic elements or electric power elements need to be arranged in the pipe; in the using process, clamping is reliable, production and maintenance are simple, use cost is low, and the expanding grasping device can be widely applied to automatic or semiautomatic production equipment of adhesive tape, spiral-wound membrane elements, roll paper and the like.

Description

Swelling gripping device in a kind of pipe

Technical field

The utility model belongs to rolled film element processing technique field, specifically relates to swelling gripping device in a kind of pipe.

Background technology

Rolled film element is that existing market is used film application form at most the most widely, and its major advantage is that to load density large, uses easy and simple to handlely, and industry standard is more consistent.Because in great majority film occasion, film is all to occur with the form of rolled film.Rolled film element, mainly by being to be rolled and formed by Flat Membrane, is wound up into polylith Flat Membrane mouth on same product center pipe during fabrication.Therefore need base pipe or rolling die effectively to clamp rolling in process, at present, being to carry out on automation or semi-automatic production facilities for rolling of membrane component, is mostly by unit clamp, rolling die to be arranged on and on equipment, to realize its holding function.Adopt this method of clamping usually to need to arrange independent clamping propulsion source in the time of work, pneumatic element or Electronmotive Force element need be set in pipe, use cost is high, is not easy to produce and safeguard.

Utility model content

For addressing the above problem, the utility model provides swelling gripping device in a kind of pipe.

The purpose of this utility model is achieved by following technical solution.

Swelling gripping device in a kind of pipe, comprise swelling shaft and be sleeved on the cylindrical shell in swelling shaft, on described cylindrical shell, be also set with locating bush and swollen, between two ends, cylindrical shell left and right and swelling shaft, be respectively arranged with roll left dynamic bearing and right antifriction-bearing box, there is end cap in right antifriction-bearing box arranged outside, in swelling shaft, be positioned at the dynamic bearing outside of rolling left and be disposed with circlip, resilient pin and joint.

In described swelling shaft, be abutted against first end and be bolted feather key.

On described swollen, be provided with elastic body.

Described cylindrical shell and swollen superposition section are provided with perforate.

Described swelling shaft and swollen contact segment is oval.

The convex surface of described swollen is rough surface or anti-slip rubber face.

The convex surface of described swollen is sawtooth pattern.

Described elastic body adopts rubber ring or spring.

The beneficial effects of the utility model are:

The utility model is applied widely, can be widely used on the automations such as adhesive tape, rolled film element, coil paper or semi-automatic production facilities.Compared with prior art, its advantage is as follows:

(1) the utility model does not need independent clamping propulsion source, directly uses active force clamping automatically;

(2) the utility model is simple in structure, and pneumatic element or Electronmotive Force element need to be set in pipe;

(3) the utility model adopts pure physical construction, and when use, clamping reliably, is produced and safeguards that simply use cost is low;

(4) the utility model can arrange the size of tension force by the size that the oval section of swelling shaft is set, and can automatically slip over, thereby protection workpiece is not damaged as exceeded when scope is set.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is that the A-A of Fig. 1 is to view;

Fig. 3 is the structural representation of locating bush in the utility model;

Fig. 4 is the structural representation of swelling shaft in the utility model;

Fig. 5 is that the B-B of Fig. 4 is to view;

Fig. 6 is the structural representation of swollen in the utility model;

Fig. 7 is that the C-C of Fig. 6 is to view;

Fig. 8 is the structural representation of the utility model middle cylinder body;

Fig. 9 is that the D-D of Fig. 8 is to view.

In figure: 1-cylindrical shell, 2-joint, the 3-dynamic bearing that rolls left, the right antifriction-bearing box of 4-, 5-swelling shaft, 6-resilient pin, the left circlip of 7-, the right circlip of 8-, 9-end cap, 10-is swollen slice, 11-rubber ring, 12-feather key, 13-locating bush, 14-bolt, the 15-tubular type volume heart.

The specific embodiment

Further describe the technical solution of the utility model below in conjunction with accompanying drawing, but described in claimed scope is not limited to.

As shown in Figure 1, swelling gripping device in a kind of pipe described in the utility model, comprise swelling shaft 5 and be sleeved on the cylindrical shell 1 in swelling shaft 5, on described cylindrical shell 1, be also set with locating bush 13 and swollen 10, between cylindrical shell 1 two ends, left and right and swelling shaft 5, be respectively arranged with roll left dynamic bearing 3 and right antifriction-bearing box 4, there is end cap 9 in right antifriction-bearing box 4 arranged outside, in swelling shaft 5, be positioned at dynamic bearing 3 outsides of rolling left and be disposed with circlip 7, resilient pin 6 and joint 2.

In described swelling shaft 5, be abutted against 1 one end and be fixed with feather key 12 by bolt 14.12 location of feather key and directional tagging.

On described swollen 10, be provided with elastic body 11.Like this, the propulsion source that only need to stop in the time getting workpiece, the counter-rotation certain angle by workpiece to former rotation direction, be subject to elastic component 11 pulling force effect under resilience, swollen 10 just can be along axially taking off workpiece after regaining to axle center.

Described cylindrical shell 1 is provided with perforate 51 with swollen 10 superposition section.Like this, swollen 10 that can make to be sleeved on cylindrical shell 1 can fully contact with swelling shaft 5.

Described swelling shaft 5 is oval with the contact segment of swollen 10.Like this, in the time that swelling shaft 5 is rotated, be subject to the constraint of cylindrical shell 1 perforate for swollen 10 and move to the diametric(al) of cylindrical shell.

The convex surface of described swollen 10 is rough surface or anti-slip rubber face.Like this, will catch rapidly work piece inner surface for swollen 10 in the impact that is subject to swelling shaft 5 thrusts, due to the increase of swelling shaft 5 corners, workpiece will rotate with swelling shaft 5.In operational process, affected by the pulling force of coiled strip, swollen 10 grasps workpiece and will grab tighter and tighter, and last workpiece will synchronously rotate unwinding and rewinding work with swelling shaft 5.

The convex surface of described swollen 10 is sawtooth pattern.Adopt sawtooth pattern convex surface, make to clamp better effects if.Described elastic body 11 can adopt rubber ring or spring.

The utility model is mainly used in using the tubular roll heart to do the accessory equipment of unwinding and rewinding, and radical function is to grasp the tubular roll heart.Be usually used in the productions such as adhesive tape production, the production of rolled film element, cloth coil paper.

Further illustrate application of the present utility model below in conjunction with embodiment accompanying drawing.

As shown in Figure 1, the utility model in use, tubular type is rolled up to the heart 15 and be inserted in locating bush 13, left section of inside face of the tubular type volume heart 15 is affixed and concentric locating with locating bush 13 outside faces, and tubular type is rolled up the left end head of the heart 15 and the right step surface of cylindrical shell 1 conical surface and is affixed and realizes axial location.When actual production is used, roll propulsion source and reach swelling shaft 5 by joint 2, feather key 12, resilient pin 6, swelling shaft 5 will be rotated with propulsion source.Under the tension force that the tubular type volume heart 15 is subject to gravity and is rolled material affects, and between locating bush 13, produce a certain amount of friction force, due between cylindrical shell 1 and swelling shaft 5 by dynamic bearing 3 and right antifriction-bearing box 4 concentric fits of rolling left, therefore when swelling shaft 5 starts to rotate originally, due to effect of inertia and the low frictional rotation performance of antifriction-bearing box, the tubular type volume heart 15 and locating bush 13 and cylindrical shell 1 will keep the short time static.As shown in Figure 4, Figure 5, because swelling shaft 5 be ellipse with the contact segment of swollen 10, the constraint of the perforate 51 that is subject to cylindrical shell 1 for swollen 10 in the time that swelling shaft 5 is rotated and moving to the diametric(al) of cylindrical shell 1.As shown in Figure 6, Figure 7, swollen convex surface is sawtooth pattern, to catch rapidly the tubular roll heart 15 inside faces in the impact that is subject to swelling shaft 5 thrusts, due to the increase of swelling shaft 5 corners, the tubular roll heart 15 will rotate with swelling shaft 5, affected by the pulling force of coiled strip, swollen 10 grasps the tubular roll heart 15 and will grab tighter and tighter, and the last tubular roll heart 15 will synchronously rotate unwinding and rewinding work with rotating shaft.The propulsion source that only need to stop while getting the tubular roll heart 15, counter-rotation one angle by the tubular roll heart 15 to former rotation direction, is subject to the resilience of elastic component 11 pulling force, and swollen 10 just can be along axially taking off the tubular roll heart 15 after regaining to axle center.

Claims (8)

1. swelling gripping device in a pipe, comprise swelling shaft (5) and be sleeved on the cylindrical shell (1) in swelling shaft (5), it is characterized in that: on described cylindrical shell (1), be also set with locating bush (13) and swollen (10), between cylindrical shell (1) two ends, left and right and swelling shaft (5), be respectively arranged with the dynamic bearing that rolls left (3) and right antifriction-bearing box (4), there is end cap (9) in right antifriction-bearing box (4) arranged outside, in swelling shaft (5), be positioned at the dynamic bearing that rolls left (3) outside and be disposed with circlip (7), resilient pin (6) and joint (2).

2. swelling gripping device in a kind of pipe according to claim 1, is characterized in that: in described swelling shaft (5), be abutted against head (1) one end and be fixed with feather key (12) by bolt (14).

3. swelling gripping device in a kind of pipe according to claim 1, is characterized in that: on described swollen (10), be provided with elastic body (11).

4. swelling gripping device in a kind of pipe according to claim 1, is characterized in that: described cylindrical shell (1) is provided with perforate (51) with swollen (10) superposition section.

5. swelling gripping device in a kind of pipe according to claim 1, is characterized in that: described swelling shaft (5) is oval with the contact segment of swollen (10).

6. swelling gripping device in a kind of pipe according to claim 1, is characterized in that: the convex surface of described swollen (10) is rough surface or anti-slip rubber face.

7. swelling gripping device in a kind of pipe according to claim 1, is characterized in that: the convex surface of described swollen (10) is sawtooth pattern.

8. swelling gripping device in a kind of pipe according to claim 3, is characterized in that: described elastic body (11) adopts rubber ring or spring.

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