JP3125828B2 - Kneading material width adjustment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kneading material squeezing device, and more particularly, to kneading a polymer material, such as synthetic resin or rubber, with a kneading roll. Also, the present invention relates to a kneaded material wrapping device capable of safely scraping from the surface of a kneading roll, efficiently returning the scraped kneaded material between a pair of kneading rolls, and further enhancing the kneading effect.

[0002]

2. Description of the Related Art Conventionally, there is a kneading apparatus as an apparatus for kneading polymer substances such as constituent resin and rubber. This kneading apparatus has a pair of kneading rolls which are arranged horizontally with their axes parallel to each other and arranged so as to have a predetermined gap. In the kneading apparatus, during kneading, the pair of kneading rolls are heated to a predetermined temperature, and when one of the kneading rolls rotates clockwise, the other kneading roll is kneaded from above to below the gap in the kneading roll. It is designed to rotate counterclockwise so as to entrap things. In addition, the rotation speed of the kneading rolls is adjusted such that the rotation speeds of the one kneading roll and the other kneading roll are different from each other.

When a kneading apparatus having such a structure is used, kneading is performed as follows.

That is, a pair of kneading rolls are each heated to a predetermined temperature. The gap between the pair of kneading rolls is adjusted to a predetermined size. Next, a predetermined amount of, for example, synthetic resin powder is supplied to the gap between the kneading rolls. At the moment when the synthetic resin powder is supplied to the gap between the kneading rolls, a small amount of the synthetic resin powder may fall from between the kneading rolls from the gap, but the synthetic resin powder is immediately melted or semi-melted by heating the kneading rolls. It becomes a state and becomes a lump on the gap between the kneading rolls.

[0005] Since the kneading rolls rotate in the opposite directions, and the pair of kneading rolls are wound so as to be rolled in from the top to the bottom of the gap between the kneading rolls, the massive synthetic resin in the gap between the kneading rolls is rotated by the rotation of the kneading rolls. A part of the synthetic resin adheres to the peripheral surface of one of the kneading rolls in a sheet shape, and rotates with the kneading rolls by the rotation of the kneading rolls.
The sheet-shaped synthetic resin returns from the gap between the kneading rolls to the gap between the kneading rolls with the rotation of the kneading rolls, encounters the massive synthetic resin existing on the gaps, and is again kneaded there.

[0006] When kneading a synthetic resin or the like using a kneading roll as described above, the width of the synthetic resin sheet wound around one kneading roll increases as the kneading roll rotates many times. .

Therefore, conventionally, an operator observes the width of the sheet on the kneading roll, cuts the end of the synthetic resin sheet on the kneading roll appropriately with a spatula or the like, and replaces the cut synthetic resin sheet with the synthetic resin. By folding back to the center of the sheet or applying spapayura to the peripheral surface of the kneading roll, a part of the kneading roll-shaped sheet is wound into a roll at the back of the spatula, and a certain amount of winding The rolled material is turned into a kneading roll with a spatula, the width of the synthetic resin sheet wound around the kneading roll is adjusted, and the kneading effect is enhanced.

As described above, when the operator manually performs the turning operation and the kneading operation of the synthetic resin sheet wound around the peripheral surface of the kneading roll, there is a danger that the operator may come into contact with the heated kneading roll. There is a problem that it is large and practically causes many burn accidents due to the contact of the kneading rolls. Further, when the synthetic resin sheet cut into a roll from the peripheral surface of the kneading roll is returned to the gap between the kneading rolls, there is often a danger of a large accident that a hand or a finger is pinched in the gap between the kneading rolls.

The present invention has been completed based on the above circumstances. That is, an object of the present invention is to perform a kneading operation with a kneading roll, and to make the width of the sheet-like material wound around the peripheral surface of the kneading roll safe, and furthermore, it is possible to arrange the width to any size.
In addition, there is provided a kneaded material wrapping device that can perform kneading more effectively by winding the end of the sheet-shaped material wound around the peripheral surface of the kneading roll into a roll shape and returning this to the gap between the pair of kneading rolls. To provide.

[0010]

According to a first aspect of the present invention, there is provided a method for forming a pair of kneading rolls, comprising:
A roll that has a rotation axis that is tangential to the peripheral surface.
A pair of cylindrical width-shifting rolls rotating in a direction in which the kneaded material adhered to the kneading rolls is peeled off, and the pair of width-shifting rolls independently or together with each other along the axial direction of the kneading rolls. And a parallel moving mechanism for moving the kneading rolls. The invention according to claim 2, wherein the kneading rolls of the kneading rolls are independently or jointly operated with each other. a kneaded product biassing device according to 請 Motomeko 1 ing a disjunction mechanism for detaching the peripheral surface, the invention of claim 3, scraping contact with the peripheral surface of the biassing roll A contract that has a board
A kneaded material wrapping apparatus according to claim 1 or 2 .

[0011]

According to the first aspect of the present invention, the pair of width adjusting rolls slide in contact with one of the kneading rolls and rotate in a direction in which the kneaded material adhered to the kneading rolls is peeled off. The sheet end of the kneaded material adhering to the peripheral surface of the roll is easily peeled off from the peripheral surface of the roll. The pair of width adjusting rolls can be moved in parallel along the axis of the kneading rolls by the parallel moving mechanism, so that the width of the pair of width adjusting rolls can be arbitrarily determined. Therefore, by arbitrarily determining the width of the pair of width-adjusting rolls, the width of the kneaded material sheet adhered to the peripheral surface of the kneading roll can also be arbitrarily adjusted.

The end of the kneaded material sheet peeled off from the peripheral surface of the kneading roll by the width-adjusting roll is wound in a roll shape near the width-adjusting roll by rotation of the width-adjusting roll, and reaches a certain amount of rotation. Then, the roll-shaped material is conveyed from the vicinity of the width adjusting roll to the gap between the kneading rolls, and a part of the rolled material is folded back to the central portion of the kneaded material sheet, and the folded kneaded material is folded. The end of the sheet is conveyed to the gap between the kneading rolls as the kneading roll rotates. The kneading operation is performed by a pair of kneading rolls.

Therefore, there is no need to turn the end of the kneaded material sheet wound around the peripheral surface of the kneading roll into a roll shape, or to manually move the wound material into the gap between the kneading rolls. Is efficiently and safely performed. Further, since the width adjusting roll is in sliding contact with the peripheral surface of the kneading roll, the surface of the kneading roll is constantly polished, and the surface of the kneading roll is cleaned by periodically moving the width adjusting roll horizontally. You can also.

According to the first aspect of the present invention, the degree of sliding contact of the width adjusting roll with the peripheral surface of the kneading roll can be arbitrarily adjusted by the separating mechanism. For example, for a kneaded material sheet that strongly adheres to the peripheral surface of the kneading roll due to a large adhesive force or a large adhesive force, the separation / contact mechanism causes the width-adjusting roll to come into close contact with the kneading roll and knead with the width-adjusting roll. Increase the contact area with the roll. Then, the end of the kneaded material sheet firmly adhered to the peripheral surface of the kneading roll is easily peeled off by the width-adjusting roll, and the end of the kneaded material sheet is wound in a roll shape, and the roll-shaped material is centered on the kneaded material sheet. It can be easily turned back to the section or supplied to the gap between the kneading rolls.

On the contrary, the kneaded material sheet has a small adhesive strength,
Alternatively, in the case of adhering to the peripheral surface of the kneading roll with a small adhesive force, the contact area between the width-adjusting roll and the kneading roll is small, in other words, the width is so small that the width-adjusting roll lightly contacts the peripheral surface of the kneading roll. When the contact state between the approach roll and the kneading roll is adjusted by the separation / contact mechanism, the kneaded material sheet can be turned back and kneaded without applying a large load to the rotating kneading roll.

[0016]

An embodiment of the present invention will now be described with reference to the drawings.

FIG. 1 is a partial cross-sectional side view showing a kneaded material width adjusting device according to an embodiment of the present invention. In FIG. 1, most of the kneaded material squeezing device is drawn so as to show a cross section, and the other portions are shown as showing side surfaces. FIG. 2 is a plan view showing a kneaded material width adjusting device according to one embodiment of the present invention. In FIG. 2, a part of the kneaded material squeezing device is notched, and a part is omitted.

As shown in FIGS. 1 and 2, a kneaded material wrapping apparatus 1 according to an embodiment of the present invention
And a first scraping device 3a having a parallel moving mechanism and a separating / contacting mechanism, and a second scraping device 3b having the same mechanical configuration as the first scraping device 3a. As described above, the first scraping device 3a and the second scraping device 3b have the same mechanical configuration. Therefore, by describing the first scraping device 3a, the description of the second scraping device 3b is made. Is omitted. However, in the drawing, the first scraping device 3a
In some cases, the members of which are omitted will be described using the members of the second scraping device 3b.

As shown in FIGS. 1 and 2, the first scraping device 3a is provided in a horizontal plane sharing the axis of one kneading roll 4 of the pair of kneading rolls and in parallel with the axis. It has a long first support base 5 arranged at a predetermined distance from the kneading roll 4.

The first support 5 is fixed by a fixing member (not shown).

The upper surface of the first support 5 extends in the longitudinal direction of the first support 5, that is, in the axial direction of the kneading roll 4, and has a length substantially equal to the longitudinal length of the first support 5. A narrow base 6 having the same length is provided. On the upper surface of the base 6, a first rail 7 having substantially the same length as the longitudinal length of the base 6 is provided.

On the upper surface of the first support table 5, the base 6
On the opposite side of the kneading roll 4 and the first rail 7
And a rack 8 extending in parallel with. On the upper surface of the rack 8, teeth meshing with a pinion 9 described later are formed over the entire length.

The upper portion of the first rail 7 is provided with the first support 5
2nd support base 1 in which the direction orthogonal to the longitudinal direction of
0 is engaged with the first sliding member 11 provided on the lower surface of the first sliding member. The first sliding member 11 extends in a direction orthogonal to the longitudinal sides of the second support base 10, and its upper surface is fixed to the lower surface of the second support base 10, and the lower surface has a first cutout. 1
2 is provided, and the first notch 12 has the first
The rail 7 fits. And this first
The sliding member 11 connects the first rail 7 to the first notch 12.
Can be slid on the first rail 7 in a state of being fitted into the first rail 7.

On the lower surface of the second support 10, a pair of supports 13 arranged in parallel with a predetermined interval in the longitudinal direction of the second support 10 are fixed. Each of the pair of supports 13 is provided with a through-hole 14. A rod 15 penetrates through the through support hole 14,
The rod 15 is supported by the pair of supports 13 by penetrating the through-hole 14. A pinion 9 is attached to the tip of the rod 15, and the pinion 9 meshes with the teeth of the rack 8. A disc-shaped operation panel 16 is fixed to the rear end of the rod 15, and an operation rod 17 is attached to the front of the operation panel 16.

Therefore, when the operation bar 16 is gripped and the operation panel 16 is rotated, the pinion 9 provided at the distal end of the rod 15 is rotated, and the rotating pinion 9 meshes with the teeth of the rack 8. The first sliding member 11 slides on the first rail 7, so that the second support 10 is
It moves along the support 5 in the direction of arrow A in FIG.

On the upper surface of the second support 10, the second support 1
A second rail 18 extending along the longitudinal direction of the second support base 10 is fixed to the center of the second support base 10. This second
The upper portion of the rail 18 is engaged with a second sliding member 20 provided on the lower surface of the third support 19. The second sliding member 20 extends in a direction along a longitudinal side of the second support base 10, an upper surface thereof is fixed to a lower surface of the third support base 19, and a second notch is provided on the lower surface. (Not shown) is provided, and the second rail 18 fits into the second cutout. And the second sliding member 2
0 is such that the second rail 18 can slide on the second rail 18 in a state where the second rail 18 is fitted in the second notch.

A first support plate 21 is provided upright on an end of the upper surface of the second support base 10 which is apart from the kneading roll 4. Above the first support plate 21, a screw hole 22 provided with an internal screw on the inner peripheral surface is provided.

On the upper surface of the third support 19, a second support plate 23 is provided upright at the center. To the second support plate 23, the tip of a screw rod 24 screwed into the screw hole 22 of the first support plate 21 is fixed. A rotating disk 25 is fixed to the rear end of the screw bar 24, and an operation handle 26 is provided in front of the rotating disk 25.

Therefore, when the rotating disk 25 is rotated by gripping the operation handle 26, the second support base 10 fixed to the tip of the screw rod 24 moves forward or backward, and the second rail 1
As the second sliding member 20 slides on the upper surface 8, the second support 10 moves forward or backward along the arrow B direction in FIG.

On the upper surface of the third support 19, the kneading rolls 4
The motor 27 is mounted on an end portion near the end, that is, a tip portion, and a rotation shaft of the motor 27 extends below an under surface of the third support base 19 from an opening 28 opened in the third support base 19. At the tip of the rotating shaft of the motor 27, a width-adjusting roll 2 made of a material having wear resistance and heat resistance, for example, Teflon is mounted.

A doctor knife 29 is mounted near the width adjusting roll 2 and on the lower surface of the third support 19, one end of which is in sliding contact with the peripheral surface of the width adjusting roll 2.

In the present invention, the parallel moving mechanism has a function of moving the width-adjusting roll 2 in parallel along the axis of the kneading roll 4. The third support 19 on which the motor 27 to be rotated is mounted, the second support 10 for supporting the third support 19, the first support 5 for supporting the second support 10, the first rail 7, the first rail 7, It has a sliding member 11, a rack 8, a pinion 9, and a rod 15.

In the present invention, the separation / contact mechanism has a function of causing the width approaching roll 2 to approach or separate from the kneading roll 4, and in this embodiment, the separation / contact mechanism includes:
It comprises a second support 10, a third support 19, a screw rod 24, a first support plate 21, a second support plate 23, a second rail 18, and a second sliding member 20.

Next, the operation of the kneaded material width adjusting device having the above-described structure will be described.

It is assumed that the first scraping device 3a and the second scraping device 3b are sufficiently separated from each other as an initial state.

When the kneading of the kneaded material is started by the pair of kneading rolls 4, a part of the kneaded material is formed into a sheet, is wound around the peripheral surface of the kneading roll 4, and starts rotating with the rotation of the kneading roll 4.

Then, the pinion 9 is rotated on the rack 8 by gripping the operation rod 17 in the first scraping device 3a and rotating the operation panel 16, so that the first sliding member 11 moves on the first rail 7. Is moved to move the second support 10 to the center of the kneading roll 4 in parallel with the axis of the kneading roll 4. The second scraping device 3b operates similarly to the first scraping device 3a to move the second support base 10 to the center of the kneading roll 4. The distance between the first scraping device 3a and the second scraping device 3b is adjusted according to the width of the kneaded material sheet wound around the kneading roll 4.

When the width adjusting roll 2 in the first scraping device 3a and the second scraping device 3b is brought into contact with the end of the kneaded material sheet wound around the peripheral surface of the kneading roll 4,
By rotating the rotating disk 25 in the first scraping device 3a and the second scraping device 3b, the second
The third support base 19 is advanced toward the kneading roll 4 by sliding the sliding member 20, and the third support base 19 is moved so that the width approaching roll 2 comes into contact with the kneading roll 4 with an appropriate pressing force. Adjust the advance width of.

By operating an operation switch (not shown), the motor 27 in the first scraping device 3a and the second scraping device 3b is rotated to rotate the width adjusting roll 2. In this case, the width adjusting roll 2 in the first scraping device 3a
Is a counterclockwise direction C when viewed from the plane, and the rotation direction of the width adjusting roll 2 in the second scraping device 3b is a clockwise direction D when viewed from the plane.

It is not necessary to rotate the first scraping device 3a and the second scraping device 3b after moving the first scraping device 3a and the second scraping device 3b horizontally. The device 3a and the second scraping device 3b may be horizontally moved to perform the width shifting.

When the width adjusting roll 2 in the first scraping device 3a is rotated as described above, the width adjusting roll 2 rotates the end of the kneaded material sheet wound around the kneading roll 4 around the kneading roll 4. The end of the kneaded material sheet peeled off from the surface is wound in a roll shape, and the roll-shaped material is folded back to the center of the kneaded material sheet or conveyed to the gap between the kneading rolls. The doctor knife 29 scrapes the kneaded material adhering to the peripheral surface of the width-adjusting roll 2 and returns it to the kneaded material sheet, or a part of the kneaded material sheet wound in a roll shape by rotation of the width-adjusting roll 2, From the surrounding surface.

When the roll 2 in the second scraping device 3b is rotated, the same operation as in the roll 2 in the first scraping device 3a is achieved.

The width of the kneaded material sheet wound on the peripheral surface of the kneading roll 4 as described above is determined by the first scraping device 3.
The width of the kneaded material sheet is determined by the distance between the width adjusting roll 2 and the width adjusting roll 2 in the second scraping device 3b, and both ends of the kneaded material sheet are moved to the center of the kneaded material sheet by the rotational force of the width adjusting roll 2. The kneaded material is efficiently kneaded because it is folded in a roll.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment.
Design changes can be made appropriately within the scope of the present invention.

For example, the parallel moving mechanism is limited to the mechanical structure shown in the above embodiment as long as it has a mechanism capable of moving the width adjusting roll 2 in parallel along the axial direction of the kneading roll 4. Instead, it can be configured by combining various known mechanical elements. In addition, the separation mechanism
The mechanical configuration is not limited to the mechanical configuration shown in the above embodiment as long as it has a mechanism capable of moving the width-adjusting roll 2 forward and backward toward the kneading roll 4, and may be configured by combining various mechanical elements. it can.

In the above embodiment, the kneading material width adjusting device is arranged in a horizontal plane sharing the axis of the pair of kneading rolls, but in a vertical plane perpendicular to the horizontal plane sharing the axis of the kneading rolls. Alternatively, a kneaded material width shifting device may be arranged above the kneading roll.

In the above embodiment, the first scraping device and the second scraping device independently move the second support relative to the first support, or move the third support to the second support. When the first scraping device is moved forward or backward with respect to the support, the parallel movement mechanism in the first scraping device and the parallel movement mechanism in the second scraping device are linked to move the first scraping device in parallel. The second scraping device may approach the first scraping device by the same amount of translation as the amount.

In the above embodiment, the rotation of the rod is realized by manually rotating the turntable. However, the rod is electrically operated by connecting a motor to the rod and turning on / off a switch for controlling the motor. You may make it rotate with. Similarly, the rotation of the screw rod may be realized by rotation of a motor coupled to the screw rod.

[0049]

According to the present invention, when kneading a kneaded material with a pair of kneading rolls, the width of the kneaded material sheet wound around the kneading roll is adjusted by a pair of rotating width-adjusting rolls,
Since the mutual distance between the pair of width-adjusting rolls is adjusted by the parallel movement mechanism of the width-adjusting rolls, the operator does not need to approach the heated kneading rolls to perform the width-adjusting operation. There is no danger of burns due to contact with the roll, and the kneading operation can be performed safely. Also, since the width-adjusting roll folds and cuts both ends of the kneaded material sheet wound around the peripheral surface of the kneading roll into a roll,
In addition to efficient kneading, it is possible to prevent an accident such as the operator's hand or finger getting caught in the kneading rolls, and in this regard, a safe kneading operation can be realized.

[0050]

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view showing a kneaded material width adjusting device according to an embodiment of the present invention. In FIG. 1, most of the kneaded material squeezing device is drawn so as to show a cross section, and the other portions are shown as showing side surfaces.

FIG. 2 is a plan view showing a kneaded material width adjusting device according to an embodiment of the present invention. In FIG. 2, a part of the kneaded material squeezing device is notched, and a part is omitted.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Kneading thing width adjustment apparatus, 2 ... width adjustment roll, 3
a ... first scraping device, 3b ... second scraping device, 4 ... kneading roll, 5 ... first support base, 6 ...
・ Base, 7 ・ ・ ・ First rail, 8 ・ ・ ・ Rack, 9 ・ ・
· Pinion, 10 ··· second support base, 11 ··· first sliding member, 12 ··· first notch, 13 ··· support
14 ... through-hole, 15 ... rod, 16 ...
Operation panel, 17 ... operation rod, 18 ... second rail, 1
9 ... third support, 20 ... second sliding member, 21.
..First support plate, 22 screw hole, 23 second support plate, 24 screw rod, 25 rotating disk, 26.
..Operation handle, 27 ... motor, 28 ... opening,
29 ... Doctor knife.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshihisa Hiraguri 2-16-2 Noguchicho, Higashimurayama-shi, Tokyo Nikkiso Co., Ltd. Higashimurayama Works (72) Inventor Keisuke Kato 2-16- Noguchicho, Higashimurayama-shi, Tokyo 2 Higashimurayama Works, Nikkiso Co., Ltd. (56) References JP-A-6-39832 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B29B ^7/ 00-7/94

Claims (3)

(57) [Claims] 1. A tangential direction of the peripheral surface of one of a pair of kneading rolls in sliding contact with the peripheral surface of one of the kneading rolls.
A pair of cylinders that rotate in a direction that separates the kneaded material adhering to the kneading roll.
Jo and biassing roll, the kneaded product width, characterized by comprising a pair of or the centering roll independently of one another each jointly parallel moving mechanism for moving along the axial direction of the kneading roll Gathering device. 2. The kneaded material wrapping apparatus according to claim 1, further comprising a separation / contact mechanism that separates / contacts each of the wrapping rolls independently or together with the peripheral surface of the kneading roll. 3. The kneading material wrapping apparatus according to claim 1 , further comprising a scraping plate in contact with a peripheral surface of the wrapping roll.