JP3827529B2 - A vibration compression device that compresses the molding material in the molding box using two unbalanced weights - Google Patents

Abstract

The invention relates to a vibration compression system for compressing and shaping molding materials into shaped bodies having a circumference and a length. Said molding materials are shaped in mold recesses of molding boxes. An outer unbalanced body (1) and an inner unbalanced body (2) having the same kinetic momentum are arranged one inside the another in a sleeve-like manner. The centers of gravity of both unbalanced bodies (1, 2) lie in a rotational plane. An adjusting bushing (7) permits the angular position of the centers of gravity to vary in relation to one another, and the shaft (3) is not subjected to stresses caused by bending due to the centrifugal force of the unbalanced bodies (1, 2).

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vibration compression apparatus for compressing and molding a molding material in a molding groove of a molding box into a molded body according to the superordinate concept of claim 1.
[0002]
[Prior art]
It is known that a vibration compression apparatus for compressing and molding a molding material in a molding groove of a molding box into a molded body includes a plurality of unbalanced weight bodies. These unbalanced weights are located on an axis that rotates the unbalanced weights, and each of the unbalanced weights generates an individual centrifugal force that is not straight depending on the angular velocity of the shaft. The sum of the individual centrifugal forces is the resulting vibratory centrifugal force. The resulting vibrating body centrifugal force is transmitted to the bearing via the shaft and delivered to the formed body via the vibrating body casing and the forming box. The magnitude of the resulting vibrating body centrifugal force can be changed by changing the pivot point positions of the unbalanced weights relative to each other. In the case of a specific nested type, adjustment from zero to the maximum centrifugal force is necessary in the vibrating body. The action of the resulting vibrating body centrifugal force cannot be adjusted.
[0003]
German Patent Application No. 2046245 describes a vibration drive that captures as much of the undesired motion component of the eccentric drive as possible by the vibration member and deforms it in the desired direction of motion. Yes. This problem is solved by arranging the eccentric drive unit in a sliding member that is movably arranged in the opening of the vibration member with respect to the pivot pin with an adjustable reciprocating stroke. Such a vibration driving unit generates a straight vibration only in one axis, and the biting of the device into the ground as a ram vibrating body is alleviated.
[0004]
[Problems to be solved by the invention]
Such a solution for a vibration compression device that compresses the molding material in the molding groove of the molding box into a molded body is only suitable for flat molded parts with upper and lower surfaces and has a circumference and length. Not suitable for molded parts.
[0005]
Furthermore, the shaft is not only used for transmitting rotational force but also used for centrifugal force of unbalanced weight.
[0006]
The object of the invention described in claims 1 to 3 is that the molding material in the molding groove of the molding box is formed into a molded body having a circumference and a length, mainly into an annular, round or elliptical molded member, or the shaft is not suitable. The purpose of this study is to develop a vibration compression device that compresses and molds polygonal complex shapes that are not subjected to bending by the centrifugal force of the balance weight.
[0007]
[Means for Solving the Problems]
This problem is solved by the features described in claim 1. In a vibration compression apparatus that compresses a molding material in a molding groove of a molding box into a molded body having a circumference and a length, mainly into a ring, round or elliptical molded member, the external unbalanced weight body 1 and the internal unbalanced body The weight body 2 has the same motion moment and is arranged in a slave shape in a slave manner, and the mass pivot points of the two unbalanced weight bodies 1 and 2 are on one rotation plane, and the mass The angular position of the turning point is changed by one adjusting sleeve 7 so that the shaft 3 is not subjected to stress caused by bending of the unbalanced weight bodies 1 and 2 due to the centrifugal force.
[0008]
At this time, the adjusting sleeve 7 is formed with a shape complementary connection portion with one screw, and in this case, the relative movement of the two unbalanced weight bodies 1 and 2 is caused by the axial movement of the adjusting sleeve 7. The relative movement of the unbalanced weights 1, 2 is always achieved with respect to the axis 3 because the relative movement of the unbalanced weights 1, 2 is achieved because they are achieved with each other or form two reverse screws. So that they are coerced to each other.
[0009]
In order to form a vertically expanded forming member, in a preferred configuration of the invention, a series of vibrators are arranged one after the other by joints of shaft ends 8, 8 'and driven in the center, in this case In addition, different centrifugal forces can be adjusted for the individual vibrators, and each centrifugal force can be adjusted individually.
[0010]
The advantage achieved by the present invention is that, particularly, the mass pivot point of the unbalanced weight bodies 1 and 2 is in the plane of rotation, the bending stress of the supported components does not occur, and the shaft 3 is unbalanced weight. There is no bending stress due to the centrifugal force of the bodies 1 and 2.
[0011]
Due to the configuration of the adjusting sleeve 7 with two reverse screws according to claim 2, the relative movement of the unbalanced weight bodies 1, 2 due to the axial movement of the adjusting sleeve 7 results in vibrations. It is possible to force each other so that the direction of the body centrifugal force always remains constant with respect to the axis 3.
[0012]
An auxiliary preferred configuration of the present invention is described in claim 3. The plurality of vibrators are arranged one after the other by the joint at the shaft end and are operated simultaneously. Each of these vibrators can be adjusted for different centrifugal forces. In relation to the characterizing part according to claim 2, it is possible for the first time to adjust the direction of the resulting vibrating body centrifugal force uniformly with respect to the axis 3.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Some preferred embodiments of the invention are illustrated in the drawings and will now be described in detail. FIG. 1 shows a longitudinal section through a compression device of unbalanced weight bodies 1, 2 arranged in a two-sleeve concentric manner. The internal unbalanced weight body 2 is supported by the internal radial bearing 4 in the external unbalanced weight body 1, and the external unbalanced weight body 1 is supported by the external radial bearing 6 in the vibrating body casing 5. ing. The direct shaft 3 is supported by a radial bearing 10 in the vibrating body casing 5 at the shaft end 8 and supported by a radial bearing 12 in the internal unbalanced weight body 2 at the other shaft end 8 ′. The adjusting sleeve 7 has two opposite-direction screws formed on the outer surface, and a spline groove formed on the inner surface. On one side, the adjusting sleeve 7 is formed in a complementary manner and tensioned by two unbalanced weights 1 and 2, and on the other side, the adjusting sleeve 7 is supported by a bush bearing 11 in the adjusting device 9. The adjustment device 9 can be adjusted in the axial direction.
[0014]
FIG. 2 shows a longitudinal section through a simplified embodiment, in which the adjusting sleeve 7 has only one screw on its outer surface and one spline groove on its inner surface. . On one side, the adjusting sleeve 7 is formed in a complementary and tensional manner by the external unbalanced weight body 1, and on the other side, the adjusting sleeve 7 is supported by a bush bearing 11 in the adjusting device 9. The device 9 can be adjusted in the axial direction. The direct shaft 3 is supported at the shaft end 8 by the radial bearing 10 in the vibrating body casing 5, and is supported at the other shaft end 8 ′ in a tension and shape-complementary manner in the internal unbalanced weight body 2. Yes.
The internal unbalanced weight body 2 is supported by an internal radial bearing 4 in the external unbalanced weight body 1 as shown in FIG. 1, and the external unbalanced weight body 1 is provided in the vibrating body casing 5 by an external radial bearing. 6 is supported.
[0015]
FIG. 3 shows a longitudinal section through another simplified embodiment, in which the external unbalanced weight body 1 is supported directly in the vibrating body casing 5 by an external radial bearing 6. The internal unbalanced weight body 2 is directly fixed to the shaft 3 as shown in FIG.
[0016]
During the operation of the vibration compression apparatus for compressing and molding the molding material in the molding groove of the molding box based on FIGS. 1 and 2 into a molded body having a circumference and a length, one shaft end of the shaft is driven, Rotational motion is transmitted in a shape-complementary manner to the adjusting sleeve via the shaft wedge. The adjusting sleeve further transmits motion to the two rotating bodies via two reverse screws on its outer surface.
[0017]
Due to the axial movement of the adjustment sleeve by the adjustment device according to FIG. 1, the relative movement of the unbalanced weight body and the position change of the mass swivel point are forced together. The positions of the unbalanced weights and the relative movement of the unbalanced weights in the adjustment process are independent of the axial position and the angular velocity of the shaft. The shaft passes through the vibrating body. A plurality of vibrators are arranged one after the other by a joint at the shaft end. A plurality of vibrators can be operated simultaneously. Different centrifugal forces can be adjusted for each of these vibrators.
[0018]
In a special application example of the present invention, a vibrating core is used to manufacture a concrete tube. Most of the vibrators are integrated into one central vibrator. The vibration of the core is generated by the central vibrator, and the central vibrator is composed of a plurality of individual vibrators that are connected to each other and driven at the center. Each individual vibrator layer during tube production depends on the application to the product to be manufactured and the respective manufacturing point of view, i.e. concrete preparation, frequency (excitation frequency), forming device / mechanical spring damping system. The vibration centrifugal force of is adjusted.
[0019]
【The invention's effect】
The mass pivot point of the unbalanced weight body is on the plane of rotation, so that the multi-axial bending stress of the supported component does not occur, and the shaft is not subjected to bending stress due to the centrifugal force of the unbalanced weight body.
[0020]
The relative movement of the unbalanced weights due to the axial movement of the adjusting sleeve allows the resulting vibrational forces to be forced together so that the direction of the vibration force always remains constant with respect to the axis.
[0021]
Since the plurality of vibrators are arranged one after the other by the joint at the shaft end and are simultaneously operated, different centrifugal forces can be adjusted in each of these vibrators.
[Brief description of the drawings]
FIG. 1 shows a longitudinal section through a compression device of unbalanced weights arranged in two sleeve-like concentric arrangements.
FIG. 2 shows a longitudinal section through a simplified embodiment.
FIG. 3 shows a longitudinal section through another simplified embodiment.
[Explanation of symbols]
1,2. . . 2. Unbalanced weight body . . . . Axes 4,6. . . 4. Radial bearing . . . . 6. Vibration body casing 7. . . . . Adjusting sleeve 8, 8 '. . 8. Shaft end . . . . Adjustment device

Claims (3)

The external unbalanced weight body (1) and the internal unbalanced weight body (2) have the same movement moment and are arranged in a slave shape in a child-type manner. 1 and 2) are on one plane of rotation, the angular positions of the mass swivel points are changed by one adjusting sleeve (7) and the shaft (3) is unbalanced weight (1 2) A vibration compression apparatus for compressing and forming a molding material in a molding groove of a molding box into a molded body having a circumference and a length, which is not subjected to stress caused by bending due to centrifugal force. The adjusting sleeve (7) is formed with two opposite-direction screws, and the relative movement of the two unbalanced weight bodies (1, 2) due to the axial movement of the adjusting sleeve (7) results in 2. The compression device according to claim 1, characterized in that the direction of the vibrational centrifugal force produced as follows is forced to remain constant with respect to the axis (3). Separate centrifugal forces can be adjusted in each vibrator of a series of vibrators that are arranged one after the other by a shaft end (8, 8 ') joint and driven in the center, and each centrifugal force is adjusted individually The compression apparatus according to claim 1 or 2, wherein the compression apparatus is capable.

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