CN211846477U

CN211846477U - Unwinding mechanism of preventing reversing

Info

Publication number: CN211846477U
Application number: CN202020352477.7U
Authority: CN
Inventors: 高志成; 刘婷; 王永利; 张坤; 吕凯明; 燕春云
Original assignee: Jiangsu Hengshen Co Ltd
Current assignee: Jiangsu Hengshen Co Ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-11-03
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses an unwinding mechanism of anti-reversion, including the main frame, it is provided with the pivot to rotate on the main frame, be provided with the anti-reversion device of control pivot rotation direction on the main frame, anti-reversion device includes gear, inserted bar, spring baffle, spring and base, the base is fixed on the main frame, the gear cup joints the tip of fixing in the pivot, spring baffle fixes on the inserted bar, the lower extreme of inserted bar is vertical to be inserted in the base, be equipped with the jack that is used for holding the inserted bar in vertical direction on the base, the spring housing is established at the inserted bar and is located between spring baffle and the base, the upper end and the gear contact of inserted bar. The utility model provides a pair of prevent unwinding mechanism of reverse can realize controlling unwinding mechanism's rotation direction, can only clockwise rotate when normally unreeling, can not anticlockwise rotate, has solved traditional unwinding mechanism's reversal problem, guarantees that the fabric unreels with correct direction to carry out the back end smoothly.

Description

Unwinding mechanism of preventing reversing

Technical Field

The utility model relates to an anti-unwinding mechanism who turns back belongs to mechanical equipment technical field.

Background

The unwinding mechanism passively rotates and unwinds the fabric arranged on the inflatable shaft anticlockwise through the stretching of the winding mechanism. The reverse side of the unreeled fabric is required to be upward, and the front side of the unreeled fabric is required to be downward, so that the subsequent process is convenient to carry out. Present unwinding mechanism clockwise and anticlockwise all can rotate, and if the fabric orientation mistake when packing into the inflatable axle, unwinding mechanism can passive clockwise rotation, leads to the fabric that unreels, and openly face up reverse side down can't carry out the next process.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is, overcome prior art's defect, provide one kind and can solve traditional unwinding mechanism's reversal problem, guarantee that the fabric unreels with the correct direction to carry out the unwinding mechanism of preventing of back-end smoothly.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the utility model provides an unwinding mechanism that prevents reverse, includes the main frame, it is provided with the pivot to rotate on the main frame, be provided with control on the main frame the anti-reverse device of pivot direction of rotation, anti-reverse device includes gear, inserted bar, spring baffle, spring and base, the base is fixed on the main frame, the gear cup joints to be fixed the tip of pivot, spring baffle fixes on the inserted bar, the lower extreme of inserted bar is vertical to be inserted in the base, be equipped with in vertical direction on the base and be used for holding the jack of inserted bar, the spring housing is established the inserted bar is just located spring baffle with between the base, the upper end of inserted bar with gear contact.

The number of the anti-reverse devices is 1 or 2, and the anti-reverse devices are positioned at one end or two ends of the rotating shaft.

The spring baffle is circular.

The anti-reverse device is positioned outside the contact position of the rotating shaft and the main frame.

The base is located the left side of gear, inserted bar upper end left side is the inclined plane structure.

The gear and the rotating shaft are welded and fixed.

The utility model has the advantages that: the utility model provides a prevent unwinding mechanism that reverses can realize controlling unwinding mechanism's rotation direction, can only anticlockwise rotate during normally unreeling, can not clockwise rotate, lets operating personnel can in time discover that the fabric adorns reversely, avoids carrying out the next process with the fabric openly up after the mistake unreels, reduces the fabric waste because of unreeling the mistake and causing; the anti-reverse unwinding mechanism is simple in structure, obvious in anti-reverse effect, low in price, small in size and low in cost, and solves the problem of unwinding direction errors which are easy to occur.

Drawings

Fig. 1 is a schematic diagram of an overall structure of an anti-reverse unwinding mechanism of the present invention.

Fig. 2 is a schematic structural diagram of the anti-reverse device of the present invention.

The reference numbers in the figures are as follows: 1-a main frame; 2-a rotating shaft; 3-an anti-reverse device; 301-gear; 302-a plunger; 303-spring baffle; 304-a spring; 305-base.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and the following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 and fig. 2, the utility model discloses an unwinding mechanism that prevents reverse, including main frame 1, rotate on the main frame 1 and be provided with pivot 2, pivot 2 passes through winding mechanism to the tensile of fabric, and passive rotation unreels to the fabric. The main frame 1 is provided with an anti-reverse device 3 for controlling the rotation direction of the rotating shaft 2, and the number of the anti-reverse devices 3 is 1 or 2 and is positioned at one end or two ends of the rotating shaft 2. The utility model discloses in, 3 numbers of anti-reverse device are preferred 1, are located the one end of pivot 2, and anti-reverse device 3 is located the pivot 2 and the main frame 1 contact department outside. In this embodiment, the rotating shaft 2 is an inflatable shaft, and in other embodiments, the rotating shaft can be a conventional rotating shaft as required.

The anti-reverse apparatus 3 includes a gear 301, a plunger 302, a spring shutter 303, a spring 304, and a base 305. The base 305 is fixed on the main frame 1, the gear 301 is sleeved and fixed at the end part of the rotating shaft 2, and the gear 301 and the rotating shaft 2 are welded and fixed. The spring stop 303 is fixed to the plunger 302, preferably circular, and the spring stop 303 moves synchronously with the plunger 301. The lower end of the plug rod 302 is vertically inserted into the jack on the base 305, and the plug rod 302 can only move up and down along the jack and cannot move horizontally. The distance of the jack on the base 305 is relatively deep, so that a relatively large contact area can be kept with the inserted rod 302, and the stability is relatively good.

The spring 304 is sleeved on the insertion rod 302 and located between the spring baffle 303 and the base 305, and the upper end of the insertion rod 302 is in contact with the gear 301. Under normal conditions, due to the gravity of the insertion rod 302 and the spring baffle 303, the insertion rod 302 is not easy to be ejected out of the insertion hole on the base 305 by the spring 304, and therefore, a limiting device for the insertion rod 302 is not needed. The base 305 is located the left side of gear 301, and the left side of inserted bar 302 upper end is the inclined plane structure, conveniently cooperates with the gear 301 of contact, guarantees that inserted bar 302 does not rotate simultaneously.

The utility model discloses an operating principle does, when gear 301 anticlockwise rotates, to the decurrent extrusion force of inserted bar 302, inserted bar 302 drives spring baffle 303 and extrudes spring 304 downwards, and spring 304 contracts, and inserted bar 302 removes downwards, and gear 301 rotates a tooth. When the gear 301 rotates clockwise, a leftward pressing force is applied to the plunger 302, and the plunger 302 cannot move horizontally, thereby blocking the clockwise rotation of the gear 301. The utility model discloses in, inserted bar 302 lower part left side can be provided with pressure sensor, and pressure sensor even has the controller, and the controller even has the siren. When the gear 301 rotates clockwise, the pressure sensor is stressed, the signal is transmitted to the controller, the controller controls the alarm to give an alarm (the part of the prior art can realize the alarm), an operator is reminded of mistakenly assembling the fabric, and intelligent reminding is realized.

The working steps of the utility model are as follows:

step one, a roll of fabric is placed in the middle of a rotating shaft 2, and the rotating shaft 2 is inflated to fix the fabric and cannot move left and right;

manually pulling out the fabric from the fabric rolling head end to enable the fabric to be rolled for 1m, and attaching the fabric head end to a paper tube of a rolling mechanism by using transparent adhesive;

step three, starting a winding mechanism to start winding, and unwinding the fabric from the rotating shaft 2;

step four, when the rotating shaft 2 is unreeled, the gear 301 is driven to rotate anticlockwise, the gear teeth 301 have downward extrusion force on the inserted link 302, the inserted link 302 drives the spring baffle 303 to extrude the spring 304 downwards, the spring 304 contracts, the inserted link 302 moves downwards, the gear 301 rotates by one tooth, the gear 301 continuously has downward extrusion force on the inserted link 302, the inserted link 302 continuously moves upwards and downwards, and the gear 301 also continuously rotates anticlockwise.

Step five, if the fabric is loaded into the rotating shaft 2, the direction is reversely loaded, when the rotating shaft 2 is unreeled, the gear 301 is driven to rotate clockwise, the gear teeth have leftward extrusion force on the insertion rod 302, the insertion rod 302 cannot move horizontally, leftward movement of the gear teeth is blocked, the gear 301 cannot rotate clockwise, the rotating shaft 2 cannot be unreeled, and an operator needs to load the fabric into the rotating shaft 2 again in the correct direction.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides an unwinding mechanism that anti-reversion, its characterized in that: the anti-reverse mechanism comprises a main frame (1), wherein a rotating shaft (2) is arranged on the main frame (1) in a rotating mode, an anti-reverse device (3) for controlling the rotating direction of the rotating shaft (2) is arranged on the main frame (1), the anti-reverse device (3) comprises a gear (301), an inserted bar (302), a spring baffle plate (303), a spring (304) and a base (305), the base (305) is fixed on the main frame (1), the gear (301) is fixedly sleeved on the end portion of the rotating shaft (2), the spring baffle plate (303) is fixed on the inserted bar (302), the lower end of the inserted bar (302) is vertically inserted into the base (305), a jack for accommodating the inserted bar (302) is arranged on the base (305) in the vertical direction, the spring (304) is sleeved on the inserted bar (302) and is positioned between the spring baffle plate (303) and the base (305), the upper end of the inserted link (302) is in contact with the gear (301).

2. The unwinding mechanism of claim 1, wherein the unwinding mechanism comprises: the number of the anti-reverse devices (3) is 1 or 2, and the anti-reverse devices are positioned at one end or two ends of the rotating shaft (2).

3. The unwinding mechanism of claim 1, wherein the unwinding mechanism comprises: the spring baffle (303) is circular.

4. The unwinding mechanism of claim 1, wherein the unwinding mechanism comprises: the anti-reverse device (3) is positioned outside the contact position of the rotating shaft (2) and the main frame (1).

5. The unwinding mechanism of claim 1, wherein the unwinding mechanism comprises: the base (305) is located the left side of gear (301), inserted bar (302) upper end left side is the inclined plane structure.

6. The unwinding mechanism of claim 1, wherein the unwinding mechanism comprises: the gear (301) and the rotating shaft (2) are fixed in a welding mode.