JP2596529Y2 - Telescopic spiral sliding body - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic spiral sliding body, and particularly to machine tools, industrial machines,
Spiral sliding body used as a spiral sliding body to be used as a dustproof cover that covers telescopic mechanisms such as shafts, cylinder rods, guide posts, ball screws, and feed screws of robots, welding machines, molds, and other equipment, and a disaster prevention cover Is characterized by using a band-like elastic material whose surface is coated with a coating film.

[0002]

2. Description of the Related Art Conventionally, the above-mentioned various devices have various expansion and contraction mechanisms. If the expansion and contraction mechanisms are naked and exposed, foreign substances such as chips and spatters and dust can easily adhere and mix.
As a result, there is a problem that the smooth movement of the expansion and contraction mechanism is hindered, and the expansion and contraction mechanism of the device is worn.

If the telescopic mechanism is exposed in a naked state, oil scatters and contaminates the factory floor and the clothes and body of workers, thereby posing a problem in terms of environmental hygiene. Since the clothes and body of the worker working on the telescopic mechanism are drawn in, there is also a problem in terms of disaster prevention, and since the appearance is not good in design, the telescopic mechanism of the equipment is covered with an elastic cover. There were many things.

[0004] As one of the covers of this kind,
There is a bellows-shaped cover made of cloth or vinyl, but the bellows-shaped cover made of cloth or vinyl has a weak physical strength, so it is easily broken during use and has drawbacks such as lack of heat resistance and chemical resistance. Was.

[0005] As another type of this type of cover, a patented product developed by the applicant company (Japanese Patent Publication No. 50-39) is also available.
There is a screw cover (trademark) manufactured and sold as 215), which is used in large quantities for the aforementioned applications.
As shown in FIG. 1, the screw cover is formed by spirally winding a band-shaped elastic material 1 made of spring steel or stainless steel.
The spiral sliding body 2 having one end 8 and the other end 10 is formed. The upper and lower ends of the winding portions 3 of the spiral sliding body 2 are partially overlapped with each other, and each of the winding portions 3 is formed as described above. The spiral sliding body 2 is configured to be entirely expandable and contractable by making the one end 8 and the other end 10 slidable.

However, since this screw cover is made of a band-like elastic material 1 made of spring steel or stainless steel, it does not break during use unlike a bellows-like cover made of cloth or vinyl. Although it has heat resistance and chemical resistance,
Since the winding portions 3 of the spiral sliding body 2 are configured to slide while overlapping with each other, the winding portions 3 are easily caught, and a gap is left between the winding portions 3 without moving evenly as a whole. In many cases, the life of the spiral-shaped sliding member 2 is shortened due to the fact that the life of the spiral-shaped sliding member 2 is shortened due to a part of the winding portion 3 or a part of each of the winding portions 3.

[0007] Each winding portion 3 of the spiral sliding body
If there is a shortage of oil, it will cause a failure due to friction, so always apply oil to each winding part,
There was a drawback that management was troublesome.

[0008]

SUMMARY OF THE INVENTION The object of the present invention is to provide a spiral-shaped sliding body, in particular, a dust-proof cover for covering a telescopic mechanism such as a shaft of a machine tool or an industrial machine, a cylinder rod, etc., and a spiral shape as a disaster-prevention cover. Eliminating the clogging of each of the wrapped portions that occurs during the expansion and contraction operation of the sliding body and moving the whole of the wrapped portions 3 smoothly and evenly prevents the gaps between the wrapped portions 3 and the loss of the wrapped portions 3. The object of the present invention is to extend the life of the spiral sliding body 2 and further facilitate maintenance and management by making it unnecessary to apply oil to the spiral sliding body.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a spiral-shaped sliding body which can be extended and contracted, and has lubricity, elasticity, physical properties such as polytetrafluoroethylene (Teflon (trademark)) on the surface of a belt-like elastic material. After coating with a strong coating film, this belt-shaped elastic material is spirally wound to form a spiral sliding body, and the upper and lower ends of each wound portion of the spiral sliding body are partially overlapped with each other,
Telescopic machine tool with each winding part slidable
Shafts, cylinder rods, etc. for machines such as machines and industrial machines
Used as a dust cover and a disaster cover to cover the telescopic mechanism
That in particular there is a feature.

In addition, the present invention provides an extension and contraction operation of each winding portion of the spiral sliding body by bending the side cross section of each winding portion of the expandable and contractible spiral sliding body in the sliding direction in an arc shape. The feature is that it is much smoother.

[0011]

[Function] By using a coating film having elasticity, elasticity, and physical strength such as polytetrafluoroethylene coated on the surface of a belt-shaped elastic material, frictional resistance at the time of expansion and contraction operation of each winding portion of the spiral sliding body is reduced. To make the sliding of the winding part smooth.

[0012]

EXAMPLES To describe an example of the present invention embodiments in the following, first, as shown in FIG. 2, the spring steel strip elastic member 1
After coating both surfaces with polytetrafluoroethylene by a known method to form a coating film 4, as shown in FIG.
Is held by a winding roll 5 and a feed roll 6,
The spiral sliding body 2 is manufactured by abutting against the bending roll 7 and winding around the winding roll 5.

That is, as shown in FIG. 4, the belt-shaped elastic member 1 is inserted from a direction perpendicular to the winding roll 5, and as shown in FIG. One end portion 8 is formed, and then, as shown in FIG. 3, the moving roll 9 is moved to bias the belt-like elastic member 1 and, while maintaining this state, spirally wound around the winding roll 5 and shown in FIG. Each of the winding portions 3 of the spiral sliding member 2 is formed. In this case, the upper end and the lower end of each of the winding portions 3 partially overlap each other.

The winding part 3 of the spiral slide 2 is
After the spiral-shaped sliding body 2 to be manufactured is appropriately wound around the winding roll 5 according to the intended use, the above-mentioned moving roll 9 is moved to move the belt-shaped elastic material 1 onto the winding roll 5 as shown in FIG. The other end 10 of the spiral slide 2 is formed by returning to the right angle state.

The spiral slide 2 manufactured by the above-described process has a structure as shown in FIG.
The structure is the same as that shown in FIG. 1 except that both surfaces of the band-shaped elastic member 1 are coated with the coating film 4.
The spiral-shaped sliding body 2 is specified to the spiral-shaped sliding body 2 by being wound so that the upper end and the lower end of each winding part 3 partially overlap each other, and after being baked (heated) by a known means and then cooled. Imparts elastic properties. The elastic characteristics of the spiral sliding member 2 are as follows.
What is necessary is just to determine suitably according to the purpose at the time of using this.

The spiral-shaped sliding member 2 is provided with each winding portion 3
When the upper end and the lower end of the spiral sliding member 2 are partially overlapped with each other and the winding portions 3 are slidable, pressing the one end portion 8 or the other end portion 10 of the spiral sliding member 2 causes the spiral sliding member 2 to slide. Reference numeral 2 denotes a compression spring, which contracts as a whole, and when the pressing is released, the spiral sliding body 2 expands as a whole and returns to its original state.

As the material of the belt-like elastic material 1, besides the above-mentioned spring steel, an elastic metal such as stainless steel or beryllium bronze or an elastic synthetic resin can be used. In addition, it has elasticity and physical strength. Anything can be used. Further, in a normal case, the length of the band-like elastic material 1 is 30 to 1500 cm, and the width is 1 to 15 cm.
cm and a thickness of 0.1 to 1 mm are used.

As the material of the coating film 4 which covers the surface of the belt-like elastic material 1, molybdenum disulfide can be used in addition to the above-mentioned polytetrafluoroethylene, and in addition, it has lubricity, elasticity and physical strength. as long as it, what kind of things rather may be used, coating film
4 may be coated on only one side of the belt-like elastic material 1;
When coated on both sides of the elastic material 1, the spiral sliding body 2
The slidability is improved. In general, the thickness of the coating film 4 is preferably 0.003 to 0.05 mm.

It is sufficient that the number of turns of the winding portion 3 of the spiral sliding member 2 is about 3 to 30. The diameter of the winding portion 3 of the spiral sliding member 2 is, as shown in FIGS. In the range of 10 to 150 mm, the diameter of the spiral sliding member 2 is made smaller, the diameter of the one end 8 of the spiral sliding member 2 is minimized, and the diameter of each winding portion 3 is gradually increased according to the winding order. The other end 10 has the largest diameter.

In the spiral sliding body 2 of the present invention, the section of each winding section 3 may be formed in a conical shape to enhance the airtightness of the spiral sliding body 2, and the section of each winding section 3 may be formed in a conical shape. The frictional resistance of the spiral sliding body 2 may be reduced by bending it in an arc shape (the confidentiality is somewhat deteriorated).

The spiral sliding body 2 of the present invention is suitable for a dust-proof cover and a disaster-proof cover for covering a shaft of a machine tool, an industrial machine or the like, and a telescopic mechanism such as a cylinder rod. It can be used as a spring to be attached to tools such as scissors, as a shock absorber used for opening and closing devices and doors, and can be used everywhere else as a spring.

[0022]

[Effects of the Invention] As described above, according to the present invention, a spiral-shaped sliding body, in particular, a dust-proof cover for covering a telescopic mechanism such as a shaft of a machine tool or an industrial machine, a cylinder rod or the like, and a spiral as a disaster-prevention cover. There is no clogging of each winding part which occurs at the time of the expansion and contraction operation of the slidable body, and it moves evenly and smoothly as a whole, so the noise at the time of expansion and contraction operation is small, there is no gap between each winding part,
Each winding part 3 does not lose one side, no failure due to friction occurs, it is possible to extend the life of the spiral sliding body, and further, it becomes unnecessary to apply oil to the spiral sliding body. There are excellent advantages such as easy maintenance and management.

Further, according to the present invention, since the spiral sliding body has high confidentiality, foreign matter such as chips and spatters and dust adhere to and enter the expansion and contraction mechanism of the device, which hinders the movement of the expansion and contraction mechanism of the device. Oil splashes and contaminates the factory floor and the clothes and body of workers, causing environmental health problems, and the clothes and body of workers are drawn in. There is no problem in disaster prevention.

In particular, if the cross section of each winding portion of the spiral sliding body of the present invention is curved in an arc shape, the confidentiality of the spiral sliding body is somewhat deteriorated. Since the frictional resistance of the spiral sliding body can be further reduced, the movement of the spiral sliding body becomes much smoother.

[Brief description of the drawings]

FIG. 1 is a sectional view of a conventional spiral sliding body.

FIG. 2 is a partially enlarged explanatory view showing a state where coating films are formed on both surfaces of a belt-shaped elastic material.

FIG. 3 is an explanatory view showing a state in which a belt-shaped elastic material is wound around a winding roll to produce a spiral sliding body.

FIG. 4 is an explanatory view showing a state where a belt-shaped elastic material is inserted into a winding roll from a direction perpendicular to the winding roll.

FIG. 5 is an explanatory view showing a state where one end of a spiral sliding body is formed by winding a belt-like elastic material around a winding roll.

FIG. 6 is an explanatory view showing a state in which a belt-shaped elastic member is biased and spirally wound around a winding roll to form a winding portion of a spiral sliding body.

FIG. 7 is an explanatory view showing that the belt-shaped elastic member is returned to a state perpendicular to the winding roll to form the other end of the spiral sliding body, and also shows the overall structure of the spiral sliding body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Band-shaped elastic material 2 Spiral sliding body 3 Each winding part 4 Coating film 5 Winding roll 6 Feeding roll 7 Bending roll 8 One end 9 Moving roll 10 The other end

Claims (2)

(57) [Scope of request for utility model registration] 1. A length of 30 to 1500 cm and a width of 1 to 15 c.
m, spring steel, stainless steel, berili with a thickness of 0.1 to 1 mm
After coating the surface of a belt- like elastic material such as aluminum bronze with a coating film having lubricity, elasticity, and physical strength of 0.003-0.05 mm such as polytetrafluoroethylene and molybdenum disulfide , the belt-like elastic material is An expandable and contractable tool that spirally winds to form a spiral sliding body, overlaps the upper end and lower end of each winding part of the spiral sliding body with each other, and makes each winding part slidable.
Shafts and cylinder rods for machinery, industrial machinery, etc.
Used as dust-proof cover and disaster-prevention cover for telescopic mechanisms such as
Spiral slide to. 2. The expandable and contractible spiral sliding body according to claim 1, wherein a section of each winding portion of the spiral sliding body is curved in an arc shape.