JPH07112680B2 - Silicone rubber slicer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silicone rubber slicing device, and more particularly to a device for slicing silicone rubber thinly and uniformly.

[0002]

2. Description of the Related Art Conventionally, thin silicone rubber sheets having a uniform thickness (0.01 to 3 mm) have been manufactured one by one by a pressing method or by a calendering machine. It is manufactured by the method of vulcanizing the cured product.

[0003]

However, in this pressing method or calendering method , the target thickness of the silicone rubber is
It is necessary mold according to the temperature in the pressing method, bubbles are generated by the pressing conditions such as time, order to also requires between one to about 2 minutes press time, quality, also mass gender also there is a problem. Further, the calender method, a thick rubber air is involved when the sheet manufacturing there is a problem that a hole of the bubble on the sheet occurs, which also poor work efficiency at the time of high-mix and or low-volume production There is a disadvantage that. The thickness of the sheet that can be produced is in the range of 0.3 to 3.0 mm by the pressing method, and is 7.0 mm or less by the calendering method.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a silicone rubber slicing device that solves the above problems, which is a shaft bearing on a base of a slicing device.
The upper and lower slide shafts attached to the base
The bottom surface of the slide shaft, which is attached to the slide shaft, is vulcanized.
Vertically movable intermediate base for fixing the silicone rubbers, Sha
A slide that can be moved left and right provided on the base for the ft
Subbase, attached to the top of this slice base
It consists of a slicing blade and moves the intermediate base that holds the silicone rubber down, and then moves the slicing blade that is fixed to the slide base to slice the silicone rubber into a desired thickness. And

According to this, the silicone rubber sheet
But the thickness of any object, easily and within efficiently short, even a wide variety, can be produced even small amounts.

[0006]

[Function] The silicone rubber referred to in the present invention may be selected from the silicone rubber compounds used in general molding, which includes silicone rubber compound KE951U (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.), silicone raw rubber · KE78VBS [Shin-Etsu Chemical Co., trade name], and the like.

[0007] FIG. 1 (a) is a top view of the present invention, and FIG. 1 (b)
Shows a side view thereof. A shaft base 2 is placed on a base 1, and a vertical slide shaft 3 and a vertical ball screw 4 are attached to the shaft base 2. The vertical slide shaft 3 has an intermediate portion. Base 5, 6
A silicone rubber 7 to be sliced is fixed to the intermediate base 6 by a silicone adhesive , for example , on a fixing jig plate 6 ′ made of Al ( see FIG. 2A). Also, this shaft for the base 2 and the slide base 8 is provided thereon slice blade 9 is attached to the slide base 8.

[0008] Slices of silicone rubber 7, the vertical movement of the intermediate base <br/> over scan 6 by the servo motor 12 of the vertical ball screw, determines the position of the silicone rubber 7 and move it down the, slide The base 8 is moved to the right by the servo motor 13 , and the slicing blade 9 slices the silicone rubber 7 . By the action of moving back and forth for a ball screw 10 of the slide base 8 the slide base 8
Row by Rukoto to move along the rail base 11
U Note that the sliced thickness of the silicone rubber of interest, the vertical movement of the intermediate base 6 is in <br/> accuracy 0.01mm unit or in El row by vertical motion of the upper and lower ball screw, freely adjusted be able to.

The silicone rubber 7 has a difference in hardness.
Rutoki, for example, those two kinds of rubber member of hardness 30 ° H and hardness 60 ° H and integrally laminated alternately multiplexing, or, when the slice thickness is changed to adjust the movement speed of the slide base 8 Is good. This speed is 80 ~
The range is preferably 160 mm / sec. If this is too fast, the resistance of the slicing blade will increase and the cutting edge will wear faster, and the cutting surface will not be smooth, on the contrary,
If it is too slow, when the slicing blade cuts into the silicone rubber, the silicone rubber is pressed and deformed, and it is difficult to obtain a uniform thickness . Also, after this slicing work ,
The slicing blade 9 returns to the origin and goes to the slicing work again, but when returning to this origin , the intermediate base 6 is moved upward by 0.2
~ Raise 0.3 mm and silicone rubber 7 and slice blade 9
Rather preferred to reduce the resistor between the tip, <br/> slicing blade of the blade scratches I'm to this, it is possible to reduce the wear of the blade tip.

The slicing blade 9 used here is preferably made of high speed tool steel (hereinafter abbreviated as high speed steel) or cemented carbide . With this slice blade 9
Te, various silicone rubber can easily be sliced, for example, JIS hardness can also be sliced from a soft silicone rubber is 30 ° H to hard silicone rubber JIS hardness of 80 ° H. However, in order to slice uniformly and thinly different silicone rubbers of this hardness, the slicing blade of FIG. 2 (b),
Cutting angle 14, blade angle 15, relief angle 1 shown in (c)
6, the bias angle 17, it is necessary to adjust various angles of the cutting edge angle 18.

The blade angle 15 is for cutting the silicone rubber, but is preferably 13 to 25 degrees.
Especially, in the case of HSS, the range of 13 to 16 degrees,
In the case of cemented carbide, it is preferable that the range is 20 to 23 degrees.
Good This easily occurs blades spill is less than 13 degrees, it is assumed likely to occur blade scratches on the slice plane, difficulty can slice smoothly increased cutting resistance and larger than 25 degrees Kunar. Although the relief angle 16 is provided for suppressing friction and minimize the portion exposed to silicone rubber 7 and slicing blade 9 to the slice at <br/>, in the range of 0.5 to 4 degrees Preferably 0.8 to 1.2 degrees
It is more preferable to set the range to. If it is less than 0.5 degrees, the cutting resistance tends to be large, and a large force is required during slicing, so the structure of the entire device must be rigid, and if it is more than 4 degrees, the slicing surface will always be the slicing blade. to contact, or cause scratches in the slice plane, smooth slice surface and a Rinikui.

The bias angle 17 is for reducing the cutting resistance of the slicing blade so that it does not act on the entire surface of the blade, but it is preferably in the range of 8 to 30 degrees.
The range of 0 to 20 degrees is more preferable. If it is less than 8 degrees, the slicing resistance becomes too large and slicing is difficult.
Tends to become, the longer the total length of the blade when larger than 30 degrees, the size of the apparatus invited Kiyasui. This cutting edge angle 18 is
14-27 degree range is preferred, sliced by HSS
The edge angle of the blade is preferably in the range of 14 to 19 degrees, 18 degrees
Is more preferable. This eliminates the edge spill during slicing, in order to minimize the burr by slice may be provided with one or two degrees greater included angle than the blade angle 15, which is likely to occur 14 times smaller than a blade spill, If the cutting edge is larger than 27 degrees, the silicone rubber is deformed at the time of cutting and the slice thickness 19 varies, which is not preferable. Well
In addition , the cutting edge angle of the slicing blade made of cemented carbide is 21 to 25.
A range of degrees is preferred, and a range of 22 to 24 degrees is more preferred.
Good By adjusting the angle of the slicing blade in this way , the silicone rubber sheet is uniform and has no blade shape, and the thickness is 0.
In the range of 2～10.0Mm, it can be obtained as those without thickness variation.

For example, the rubber hardness is 70 ° H and the thickness is about
Slice a 1.0 mm silicone rubber sheet
The cutting conditions are cemented carbide and a cutting angle of 14
24 °, blade angle 15 to 22 °, relief angle 16 to 1 °,
Bias angle 17 is 10 ° and cutting edge angle 18 is 23 °.
And slicing speed of 150 mm / sec is exemplified.
Be done.

[0014]

EXAMPLES Next, examples of the present invention will be given. Example Using the apparatus shown in FIG. 1, the vulcanized and cured JIS hardness is
Slice a 300 × 300 × 300 mm silicone rubber block at 30 ° H, and cut this into an intermediate plate.
Fixed to over scan 6, the intermediate base 6 by vertical movement of the upper and lower ball screws and Fall, to fix the silicone rubber block to the slice position. In addition, the slicing speed and the material of the slicing blade used here are as shown in Table 1. Silicone rubber sheet to have a thickness 0.2 mm, return the slicing blade 9 an intermediate base 6 is raised 0.2 mm, and then the intermediate base 6 is lowered 0.4 mm, Sly
By moving the blade 9 to the right, the silicone rubber block
Sliced click, cut, thickness 0.2m Repeat this
1,500 sheets of silicone rubber sheet of m . work
As a result , it was possible to easily and continuously obtain a silicone rubber sheet having a uniform thickness and having no blade shape. In addition, when the slice blade was examined after this slice, the blade was not scratched or worn, and the blade did not spill.

[0015]

[Table 1]

[0016]

According to the present invention, since the silicone rubber can be sliced to have an arbitrary thickness, the silicone rubber sheet used for various purposes can be easily and efficiently produced. , In this case, regardless of the thickness compared to the conventional pressing method and calendering method,
Effect that any thick silicone rubber sheet without problems in quality and productivity, can be readily produced
Was shown .

[Brief description of drawings]

FIG. 1 relates to a slicing apparatus of the present invention (a)
Shows a top view thereof, and (b) shows a side view thereof.

2 (a) is a perspective view showing the mounting of a silicone rubber in the present invention, (b) is a perspective view of the slicing blade, (c), (d) is a longitudinal sectional view of the slicing blade .

[Reference Numerals] 1 ......... base, Bass 2 ............... shaft, 5,6 ... intermediate base, 6 '............ fixing jig
Ingredients plate, 7 ......... silicone rubber, 8 ............... slide base, 9 ......... slicing blade, 10 ............ longitudinal ball screw, 11 ...... rail base, 12, 13 ... servomotor, 14 …… Cutting angle, 15 ………… Blade angle, 16 …… Relief angle, 17 ………… Bias angle, 18 …… Cutting edge angle, 19 ………… Slice thickness.

Claims (1)

[Claims] 1. A shaft base on the base of a slicing device.
The upper and lower slide shafts attached to the
A vulcanized silicone is attached to the bottom of the ride shaft.
Vertically movable intermediate base for fixing cone rubber , shuffling
A slice that can be moved left and right provided on the base
Base, the space attached to the top of this slice base
Characterized by slicing the silicone rubber to a desired thickness by moving the intermediate base, which consists of rice blades and fixing the silicone rubber downward, and moving the slicing blade fixed to the slide base. Silicone type rubber slicing device.