JPH0524649U - Roller for adjusting web width - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a running web width adjusting roller having excellent durability, which is capable of remarkably improving the widthing effect and the widthning accuracy of the web evenly over the entire roller. . A width adjusting roller for a traveling web according to the present invention is disposed between both side wheel members 2, 2 which are arranged so as to be tiltable and freely rotatable so as to be provided on an outer peripheral surface thereof along an axial direction of a roller body 5. A large number of stretchable strips 9 are stretched in a ring shape through a large number of enclosed strip grooves 8 and the desired stretchable strips 9 are moved left and right by the tilting movement of the side wheel member 2 and rotated. In the width adjusting roller of the running web configured to adjust the width of the running web W, the leg portions 9a projecting below the width-applying action surface of each elastic strip 9 are provided with a required space. A plurality of sliders 10 are fitted and the leg portions 9a of each stretchable strip 9 are slidably inserted together with the slides 10 into the respective strip grooves 8 of the roller body 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a width adjusting roller for a traveling web, and more specifically, when the width of the traveling web changes, the web is expanded or contracted to a predetermined edge position to reduce the width of the web. In the roller to be adjusted appropriately, the width adjusting effect is kept uniform over the entire length of the elastic strip for width adjustment to improve the width-extending effect of the running web, and the elastic strip by sliding is The present invention relates to a width adjusting roller for a traveling web configured to prevent abrasion and further improve the above effects.

[0002]

[Prior Art]

Conventionally, as a width adjusting roller for this type of running web, for example, one disclosed in Japanese Utility Model Publication No. 63-23390 is known, and the elastic strip a for adjusting the width of the web is As shown in FIG. 9, a plurality of linear grooves c surrounded by the outer peripheral surface of the roller body b along the axial direction are provided on the lower side of the width-applying surface a ₁ of each elastic linear body a. The leg portion a ₂ projecting from the above is directly inserted and attached while maintaining a required clearance d.

[0003]

[Problems to be solved by the device]

 By the way, the stretchable strip a for web width adjustment, which is inserted into the strip groove c of the roller body b as described above, is made of a metal member because the material thereof is rubbery. In order to smoothly slide in the groove, in addition to being inserted while maintaining the required clearance d as described above, it is easily worn by sliding friction, so that the elastic groove a and groove c Inevitably, the gap between and becomes too large, and each stretchable strip a easily moves in the radial and circumferential directions of the roller, as indicated by the arrow, and the outer diameter and shape of the roller change. Then, there arises a problem that the accuracy of adjusting the web width is lowered.

Further, in this case, on both end sides of the roller, the elastic action of the elastic strip a can be maintained smoothly, and the width of the web can be adjusted satisfactorily. It is unavoidable that the elongation rate of the elastic strip a becomes small due to the friction and the sliding value becomes small. Therefore, it is difficult to uniformly extend the width of the web over the entire roller, which causes a serious obstacle.

The present invention has been researched and developed with the object of solving the above-mentioned problems, and each stretchable strip inserted into a strip groove surrounded by the peripheral surface of the roller body is attached to a roller. The web can be smoothly slid over the entire surface, and the width of the web can be improved evenly. At the same time, the elastic strip is hardly worn, and therefore the outer diameter and shape of the roller can be improved. Therefore, it is an object of the present invention to provide a running web width adjusting roller having excellent durability, which has features such as that the width of the web can be remarkably improved.

[0006]

[Means for Solving the Problems]

 As means for solving the above-mentioned problems and achieving the object, in the present invention, the outer peripheral surface is provided between both side wheel members arranged to be tiltable and freely rotatable along the axial direction of the roller body. A large number of elastic strips are stretched in a ring shape through a large number of linear grooves that are surrounded by, and the required elastic strips are moved to the left and right by the tilting movement of the side wheel member to rotate them. In the width adjusting roller of the running web configured to adjust the width of the running web, the legs protruding below the width-applying action surface of each elastic strip are slid with a plurality of slidable spaces at required intervals. A width adjusting roller for a traveling web is developed, characterized in that a child is fitted and the leg portion of each elastic strip is slidably inserted together with the slider into each groove of the roller body. , Adopted.

Further, in the present invention, in the width adjusting roller of the running web configured as described above, the slider is formed of a hard synthetic resin molded body having good lubricity, and the running web width adjusting is characterized. Developed and adopted a roller.

[0008]

In the width adjusting roller of the traveling web according to the present invention, since each stretchable strip 9 is inserted into each strip groove 8 according to the above-mentioned mode, the stretchability is increased by the tilting movement of the side wheel member 2. When the strip 9 is moved to the left and right, the elastic strip 9 slides in the strip groove 8 via a plurality of sliders 10 fitted with a required spacing. Since the stretchable strip 9 such as quality does not directly contact and slide with the strip groove 8 surrounded by the metal member, the stretchable strip 9 smoothly slides in the strip groove 8 together with the slider 10. , Has the effect of evenly extending the width of the web over the entire roller.

Further, since the stretchable strip 9 is protected by the slider 10 and hardly wears, the outer diameter and shape of the roller are not changed, and the web width drawing accuracy can be improved. The durability of the roller as a whole is also improved.

[0010]

【Example】

 An embodiment of the present invention will now be described with reference to the accompanying drawings. The traveling web width adjusting roller according to the present invention is roughly classified into a traveling web width adjusting roller member 1 and the roller member 1. It is composed of side wheel members 2 arranged on both sides, a hollow support shaft 3, and a large number of universal joints 4.

Thus, the roller member 1 has a T-shaped cross-section, which is integrally formed on the outer peripheral surface of the metal hollow roller main body 5 along the axial direction of the main body 5 in this embodiment so as to project integrally. A plurality of grooved grooves 8 each having a narrow opening 7 formed in the central portion of the upper surface along the axial direction of the roller main body 5 and formed by the adjacent metal bars 6, 6 of the plurality of metal bars 6; A moderate surface having a substantially E-shaped cross-section, which is formed by providing a web width-applying surface 9b on the upper surface of the narrow neck portion 9a and projecting legs 9c on the lower portion of the narrow neck portion 9a. An elongated rubber stretchable strip 9 having frictional resistance, and as shown in FIGS. 2, 3 and 4, can be tightly fitted over the narrow neck portion 9a and the leg portion 9c of the stretchable strip 9. A large number of short sliders 10 each made of a hard synthetic resin molding having a shape and excellent in slipperiness. 10 and the leg portions 9c of the elastic strips 9 are closely fitted with a large number of the sliders 10 at required intervals, and the leg portions of the elastic strips 9 are formed. 9 c together with the slider 10 are slidably inserted into the respective groove portions 8. In FIG. 3, reference numeral 10a denotes a small ridge having a semi-cylindrical cross-section protruding from both sides of the slider 10, and the small ridge 10a allows the elastic groove 9 to slide when the elastic ridge 9 slides. It reduces the frictional resistance with.

Further, the side wheel members 2 and 2 are arranged on both sides of the roller member 1 so as to attach both ends of each stretchable strip 9 which is surrounded by a ring on the peripheral surface of the roller member 1. It is supported by a cylindrical support member 12 having a flange 11 on the outside so as to be freely rotatable from each other via a bearing 13 from the inside.

Further, the hollow support shaft 3 is inserted into the support member 12 and is attached to the support member 12 by the pins 14 and 14 which are separately planted from above and below, and the pin 14, It is configured so that both the support member 12 and the side wheel member 2 can be simultaneously tilted left and right at a required angle in the axial direction of the roller body 5 with 14 as a rotation axis.

Further, the large number of universal joints 4 ... 4 are for attaching both ends of each stretchable strip 9 to the outer circumferences of the both side wheel members 2, 2 so as to change the angle thereof. A spherical member 16 fixed to the outer periphery by a pin shaft 15 is provided with a socket 17 that has a spherical pair with the spherical member 16 at one end, and a connecting fitting 19 having an end gripping piece 18 of the elastic strip 9 at the other end. As shown in FIG. 8, each of the elastic strips 9 is fitted to the socket 17, and the end portions of the elastic strips 9 are gripped by the gripping pieces 18 so that the elastic strips 9 are attached to both side wheels. The stretchable strips 9 stretched between the members 2 and 2 have the flexibility to change the angle with respect to the side wheel member 2.

In the drawings, 20 is a roller shaft, 21 is a bearing, 22 is a positioning screw for the pin 14, 23 is a screw insertion member of an angle adjusting screw rod fitted on the outside of the hollow support shaft 3, 24, In order to tilt the side wheel member 2, 24 is displaced by about 90 degrees with the pins 14 and 14, respectively, and is threaded through the screw insertion member 23, and the tip thereof is abutted against the surface of the flange 11 of the support member 12. The angle adjustment screw is shown.

Thus, the width adjusting roller of the running web of the embodiment configured as described above has the surface of a large number of stretchable strips 9 stretched in a ring shape, as shown in A of FIG. When the web W is slidably contacted and used, the side wheel member 2 and the angle adjusting screw rod 24 are moved back and forth in a direction to correct the fluctuation to the required width according to the fluctuation of the web width. The desired width adjustment is performed by moving the stretchable strips to the left or right by automatically tilting them. However, according to this embodiment, the following actions and effects are obtained. is there.

Since each stretchable strip 9 is inserted into each strip groove 8 together with a large number of sliders 10 which are fitted to the strips and are made of a hard synthetic resin molded body having a high degree of lubricity. Coupled with the provision of the small protrusions 10a on both sides of the slider, the roller body 5 slides smoothly in the groove 8 over the entire roller body 5, and the elastic member 9 in each part of the roller body 5 is slid. It is possible to keep the web widthening action evenly, and the desired web width adjustment can be achieved satisfactorily.

Further, since each stretchable strip 9 is protected by the slider 10 and hardly wears, there is no risk that the raw material powder of the stretchable strip will be attached to the web and be contaminated. In addition to good durability, the outer diameter and shape of the roller body 5 are not changed, so that the web width can be improved more accurately, and the roller body 5 can be rotated at a high speed so that the width of the web can be improved. Adjustment efficiency can be improved.

Further, as the tilting means of the side wheel member 2, since the angle adjusting screw rods 24 screwed through the screw inserting members 23 axially arranged on the outer sides of the both side wheel members respectively are adopted, the structure is simple. Needless to say, the side wheel member 2 can be smoothly or easily tilted manually or automatically by a simple operation only by manually or mechanically rotating the screw rod 24 to move it back and forth. The width of the running web can be adjusted more smoothly.

Although the main embodiments of the present invention have been described in detail above, the present invention is not limited to the above-mentioned embodiments, and the scope of the invention can be achieved and the scope of the invention is not deviated. It goes without saying that various design changes are possible.

[0021]

[Effect of the device]

 According to the present invention, a large number of stretchable strips are provided between both side wheel members that are arranged so as to be tiltable and freely rotatable, through a plurality of strip grooves that are surrounded on the outer peripheral surface thereof along the axial direction of the roller body. The body is stretched in a ring shape and the width of the traveling web is adjusted by tilting the side wheel member to move the required elastic strip to the left and right and rotating it to adjust the width of the traveling web. In the roller, a plurality of sliders are fitted to the legs protruding below the width-extending action surface of each elastic strip at a required interval, and the legs of each elastic strip are attached to the slider. In addition, the present invention relates to a width adjusting roller for a running web characterized by being slidably inserted into each groove of the roller body, and cannot be achieved by a conventional roller of this type. The following excellent effects can be achieved.

(1) Since each stretchable strip is inserted into each strip groove together with the plurality of sliders fitted to the strip, the side wheel member is tilted to obtain the required stretchable strip. When it moves, the strip smoothly slides in the strip groove through each slider, and the web is stretched by the elastic strips at each part of the roller body, including both ends and the central part of the roller body. The action can be kept uniform, and the desired width adjustment of the running web can be satisfactorily achieved.

(2) Each of the elastic strips is protected by the slider and hardly wears when moving in the groove, so that the raw material powder of the elastic strips adheres to the web. There is no risk of soiling, and the durability is good, and since the outer diameter and shape of the roller body do not change, the web width extraction accuracy can be improved, and the high-speed rotation of the roller body is also possible. This makes it possible to improve the efficiency of adjusting the web width.

[Brief description of drawings]

FIG. 1 (A) is a front view, partly omitted, showing the usage state of a width adjusting roller for a traveling web according to the present invention. (B) It is a vertical side view in which a part of the width adjusting roller member is omitted.

FIG. 2 is an enlarged view showing a part of FIG.

FIG. 3 is a side view of a slider.

FIG. 4 is a plan view of a slider.

FIG. 5 is a plan view showing a part of a stretchable strip having a plurality of sliders fitted therein.

6 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 7 is a partially omitted enlarged cross-sectional view of one end of the width adjusting roller.

FIG. 8 is an explanatory diagram of a tilting state of a side wheel member.

FIG. 9 is an enlarged vertical sectional side view showing a part of a conventional width adjusting roller member.

[Explanation of symbols]

 1 Width Adjustment Roller Member 2 Side Wheel Member 5 Roller Main Body 8 Groove 9 Stretchable Stroke 9a Neck Neck 9b Width Extending Surface 9c Leg 10 Slider

Claims (2)

[Scope of utility model registration request] 1. A large number of stretchable members are provided between both side wheel members that are arranged to be tiltable and freely rotatable so that a large number of groove grooves are provided on the outer peripheral surface of the roller body along the axial direction of the roller body. The width of the running web is adjusted by tensioning the strip in a ring shape and moving the desired stretchable strip left and right by the tilting movement of the side wheel member to rotate it to adjust the width of the running web. In the roller, a plurality of sliders are fitted to the leg portions projecting below the width-extending action surface of each elastic strip at a required interval, and the leg portions of each elastic strip are attached to the slider. A width adjusting roller for a running web, which is configured to be slidably inserted into each groove of the roller body. 2. The width-adjusting roller for a running web according to claim 1, wherein the slider is formed of a hard synthetic resin molding having good lubricity.