CN105600547A

CN105600547A - Thin film tensioning device

Info

Publication number: CN105600547A
Application number: CN201610075294.3A
Authority: CN
Inventors: 蒋子荣
Original assignee: Deqing County New Huarong Rubber And Plastic Color Printing Factory (general Partnership)
Current assignee: Deqing County New Huarong Rubber And Plastic Color Printing Factory (general Partnership)
Priority date: 2016-02-03
Filing date: 2016-02-03
Publication date: 2016-05-25

Abstract

The invention discloses a thin film tensioning device which comprises a commodity shelf, a rolling rack, a first rolling shaft, a plurality of limiting shafts, tension strips, a second rolling shaft, a third rolling shaft and 2 adjusters, wherein the commodity shelf is positioned on one side of the rolling rack and comprises one or a plurality of groups of grooves; the first rolling shaft is positioned on the rolling rack; the multiple limiting shafts are positioned on the other side of the rolling rack; the tension strips are positioned between the multiple limiting shafts; the 2 limiting shafts on two adjacent sides of the tension strips have a height difference in the vertical direction; the length of each tension strip is greater than the perpendicular distance between the tension strip and the ground. The thin film tensioning device provided by the invention is suitable for tensioning thin films with different thicknesses and different widths, and the tension strips can guarantee the tensioning property, and the thin films are difficult to damage.

Description

Thin film tensioning device

Technical field

The present invention relates to tensioning apparatus field, relate generally to thin film tensioning device field.

Background technology

Film is a kind of thin and soft transparent sheet. Make with plastics, adhesive, rubber or other materials. In process of production, film need to cut into small plastic bag one by one through after integrally blow on cutting machine, but because film is flexible material, transmit process in due to the inadequate words of tensile force, film can be uneven, in the process of cutting, cause the polybag of cutting not of uniform size, the polybag quality after cutting has problem.

Existing thin film tensioning device is all by film tensioning, still in the time that film is transported on cutting machine, under effect of inertia in transmitting procedure, delivery roll can continue rotation, causes film uneven, and this just causes serious quality problems, cause production efficiency low, have wretched insufficiency.

Summary of the invention

For overcoming the above problems, the invention provides a kind of thin film tensioning device, comprise rack, rolling frame, the first roller bearing, several limit shafts, tension bar. Described rack is positioned at described rolling frame one side, and described rack comprises one or organize groove more. Described the first roller bearing is positioned on described rolling frame. Limit shaft described in several is positioned at institute's rolling frame opposite side, and described tension bar is described in several between limit shaft. 2 described limit shafts of the adjacent both sides of described tension bar have drop in vertical direction; The length of described tension bar is greater than its vertical range to ground.

Preferably, the material of described tension bar is good, smooth, the non-damageable fabric of pliability or synthetic material, can prevent scratching film in tensioning process.

Preferably, described tension bar also comprises weighted lever, and described weighted lever is fixed on described tension bar bottom. Tension bar quality is soft, cannot reach the function of automatic stretching, extension, and described weighted lever moves down under Action of Gravity Field, and when film is not when tensioning, described tension bar moves down until film reaches tensioning state under the effect of described weighted lever.

Preferably, the material of described tension bar is the mat that grass blade or bamboo let are worked out, and described tension bar smooth surface, smooth described tension bar provide protection against wear film, the mat that grass blade or bamboo let are worked out in the time of film tensioning stressed automatically on contracting, in the time of not tensioning of film, it moves down until film reaches tensioning state under Action of Gravity Field.

Preferably, also comprise the second roller bearing, the 3rd roller bearing, 2 adjusters; Described the first roller bearing is between described rack and described the second roller bearing, and described the second roller bearing and described the first roller bearing exist drop in vertical direction; Described the 3rd roller bearing is close to described the second roller bearing; 2 described adjusters lay respectively at described the 3rd roller bearing two ends, and described adjuster is knob. Described adjuster, for regulating the distance between described the second roller bearing and described the 3rd roller bearing, makes this thin film tensioning device be applicable to the different film of thickness.

Preferably, described limit shaft comprises several adjustable position-limited wheels, described limit shaft runs through the center of circle of described position-limited wheel, described position-limited wheel can be used for ensureing that in transportation, film keeps normal orbit, prevent its deflection, this adjustable position-limited wheel makes this thin film tensioning device be applicable to the film of different in width.

This thin film tensioning device provided by the invention is applicable to the film tensioning of different-thickness, different in width, and described tension bar can ensure tensioning, also easy damaged film not. In transportation, even if described the first roller bearing and described limit shaft rotate under effect of inertia, when film is not when tensioning, described tension bar in gravity lower stretching, extension used until film tensioning; Simultaneously this tension bar can be because undue tensioning causes film to tear damage, and in the time of the undue tensioning of film, described tension bar is stressed and be easy to receipts, is accordion or rolled.

Brief description of the drawings

Fig. 1 is thin film tensioning device schematic diagram in embodiment mono-;

Fig. 2 is thin film tensioning device schematic diagram in embodiment bis-.

Detailed description of the invention

Embodiment mono-

A kind of thin film tensioning device as shown in Figure 1, comprises rack 11, rolling frame 12,13,2 limit shafts 14 of the first roller bearing, tension bar 15. Described rack 11 is positioned at described rolling frame 12 1 sides, and described rack 11 comprises one or organize groove more. Described the first roller bearing 13 is positioned on described rolling frame. Limit shaft 14 described in 2 is positioned at institute's rolling frame 12 opposite sides. Described tension bar 15 is between 2 described limit shafts 14. 2 described limit shafts 14 of described tension bar 15 adjacent both sides have drop in vertical direction, and the length of described tension bar 15 is greater than its vertical range to ground. Described limit shaft 14 comprises several adjustable position-limited wheels, described limit shaft 14 runs through the center of circle of described position-limited wheel, described position-limited wheel can be used for ensureing that in transportation, film keeps normal orbit, prevent its deflection, this adjustable position-limited wheel makes this thin film tensioning device be applicable to the film of different in width.

The material of described tension bar 15 is good, smooth, the non-damageable fabric of pliability or synthetic material, can prevent scratching film in tensioning process. Described tension bar comprises weighted lever, and described weighted lever is fixed on described tension bar bottom. Tension bar quality is soft, cannot reach the function of automatic stretching, extension, and described weighted lever moves down under Action of Gravity Field, and when film is not when tensioning, described tension bar 15 moves down until film reaches tensioning state under the effect of described weighted lever.

In the time that film arrives cutting machine, stop the transport to film, if the limit shaft 14 described in 13,2 of described the first roller bearings fails to stop operating under effect of inertia, when film fails to reach tensioning state, described weighted lever drives described tension bar 15 down to stretch under Action of Gravity Field, until film reaches tensioning state; After having cut, when again film transport, if too tensioning of film, described tension bar 15 under the effect of film tensile force on contracting be accordion, until film arrives suitable tensioning state.

Embodiment bis-

A kind of thin film tensioning device as shown in Figure 2, comprises rack 21, rolling frame 22,23,3 limit shafts 24 of the first roller bearing, tension bar 25, the second roller bearing 26,27,2 adjusters 28 of the 3rd roller bearing. Described rack 21 is positioned at described rolling frame 22 1 sides, and described rack 21 comprises one or organize groove more. Described the first roller bearing 23 is positioned on described rolling frame 22. Limit shaft 24 described in 3 is positioned at institute's rolling frame 22 opposite sides, and described tension bar 25 is wherein between 2 described limit shafts 24. 2 described limit shafts 24 of described tension bar 25 adjacent both sides have drop in vertical direction; The length of described tension bar 25 is greater than its vertical range to ground. Described limit shaft 24 comprises several adjustable position-limited wheels, described limit shaft 24 runs through the center of circle of described position-limited wheel, described position-limited wheel can be used for ensureing that in transportation, film keeps normal orbit, prevent its deflection, this adjustable position-limited wheel makes this thin film tensioning device be applicable to the film of different in width.

Described the first roller bearing 23 is between described rack 21 and described the second roller bearing 26, and described the second roller bearing 26 exists drop in vertical direction with described the first roller bearing 23; Described the 3rd roller bearing 27 is close to described the second roller bearing 26; 2 described adjusters 28 lay respectively at described the 3rd roller bearing 27 two ends, and described adjuster 28 is knob. Described adjuster 28, for regulating the distance between described the second roller bearing 26 and described the 3rd roller bearing 27, makes this thin film tensioning device be applicable to the different film of thickness.

The material of described tension bar 25 is the mat that grass blade or bamboo let are worked out, and described tension bar 25 smooth surfaces, smooth described tension bar 25 provide protection against wear film, the mat that grass blade or bamboo let are worked out in the time of film tensioning stressed automatically on contracting, in the time of not tensioning of film, it moves down until film reaches tensioning state under Action of Gravity Field.

When use, film passes through described the first roller bearing 23, described the second roller bearing 26, described the 3rd roller bearing 27, described limit shaft 24, described tension bar 25, described limit shaft 24 successively, finally arrives cutting machine.

In the time that film arrives cutting machine, stop the transport to film, if the limit shaft 24 described in 23,2 of described the first roller bearings under effect of inertia, fail to stop operating, when film fails to reach tensioning state, described tension bar 25 down stretches under Action of Gravity Field, until film reaches tensioning state; After having cut, when again film transport, if too tensioning of film, described tension bar 25 under the effect of film tensile force on contracting be accordion or rolled, until film arrives suitable tensioning state.

These are only preferred embodiment of the present invention, therefore can not limit according to this scope of the invention process, the equivalence of doing according to description of the present invention changes and decorates, and all should belong in the scope of the present invention's covering.

Claims

1. a thin film tensioning device, is characterized in that comprising rack, rolling frame, the first roller bearing, several limit shafts, tension bar; Described rack is positioned at described rolling frame one side, and described rack comprises one or organize groove more; Described the first roller bearing is positioned on described rolling frame; Limit shaft described in several is positioned at institute's rolling frame opposite side, and described tension bar is described in several between limit shaft; 2 described limit shafts of the adjacent both sides of described tension bar have drop in vertical direction; The length of described tension bar is greater than its vertical range to ground.

2. according to the thin film tensioning device described in claim 1, the material that it is characterized in that described tension bar is good, smooth, the non-damageable fabric of pliability or synthetic material.

3. according to the thin film tensioning device described in claim 2, it is characterized in that described tension bar also comprises weighted lever, described weighted lever is fixed on described tension bar bottom.

4. according to the thin film tensioning device described in claim 1, the material that it is characterized in that described tension bar is the mat that grass blade or bamboo let are worked out, and described tension bar smooth surface.

5. according to the thin film tensioning device described in claim 1, characterized by further comprising the second roller bearing, the 3rd roller bearing, 2 adjusters; Described the first roller bearing is between described rack and described the second roller bearing, and described the second roller bearing and described the first roller bearing exist drop in vertical direction; Described the 3rd roller bearing is close to described the second roller bearing; 2 described adjusters lay respectively at described the 3rd roller bearing two ends, and described adjuster is knob.

6. according to the thin film tensioning device described in claim 1, it is characterized in that described limit shaft comprises several adjustable position-limited wheels, described limit shaft runs through the center of circle of described position-limited wheel.