KR20000037088A - Concrete vibrator - Google Patents

Abstract

PURPOSE: A vibrator of metal mold for molding a concrete is provided to minimize interference by a vibration generated from a vibration generator and to prevent a damage in a combining portion at the same time. CONSTITUTION: A transferring bar(36) is located on a upper side of a vibrating plate(24) by a wheel(35) rotated on a rail(34), and a vibrator of metal mold for molding a concrete is expanded by supplying air into an inside of an air spring bag(23). A fixing pin(33) is inserted inside a hole formed in a lower face of a metal mold(M) by lifting the vibrating plate(24) according to the expansion of the air spring bag(23). The metal mold is maintained a fixed state. Each vibrating plate(24) is lifted at the same height by lifting sliding members(29)(30) inside slide blocks(31)(32) combined inside a pillar(21). When an appropriate concrete is inserted inside a cavity(C) formed inside the metal mold(M) with a separated inserting device of concrete, a vibration generator of high frequency(26) and vibration generators of low frequency(27)(28) generate a high frequency over 6000rpm and a low frequency of 3200-3800rpm. A vibration is directly transferred to the metal mold(M) by vibrating the vibrating plate(24) with the frequencies. The concrete filled inside the cavity(C) is hardened.

Description

Mold vibrator for concrete molding {Concrete vibrator}

The present invention relates to a mold vibration device for concrete molding, and more particularly, to a mold vibration device for concrete molding to minimize the interference caused by the vibration generated from the vibration generator and at the same time prevent damage to the coupling portion. will be.

Generally, products such as concrete sewer pipes and drain pipes are manufactured by filling concrete in a mold having a certain shape and then solidifying. In this case, the mold is filled with concrete and vibrated by a vibrator to increase the density of the concrete, thereby increasing its strength and The service life is improved.

As shown in FIG. 1, a mold vibrator for concrete molding has a plurality of pillars 11 installed on both sides of the base member 10, and a buffer member 12 is coupled to the upper side of the pillar 11. The upper side of the shock absorbing member 12 is fixed to the diaphragm 13 in the transverse direction, the bottom of the diaphragm 13 is equipped with a vibration generator 14 for generating vibration by the frequency according to the operation. .

Therefore, when the mold (M) is located above the diaphragm 13, the concrete is filled in the mold (M) and at the same time the vibration generator 14 operates to generate a high frequency vibration, which is generated It is transmitted to the mold (M) through the diaphragm 13 to vibrate the concrete filled therein so that the density is dense.

However, such a conventional vibrating device has a problem in that the life of the remarkably shortened and the vibration generator is damaged by the coupling part of the pillar and the vibration plate due to the interference of the vibration generated in the vibration generator.

Accordingly, the present invention has been invented to solve the above-mentioned problems of the prior art, and an object of the present invention is to allow the diaphragm to which vibration is transmitted to absorb and block the impact force by the air spring back and the slider to prolong the life of the device. In order to increase the compaction effect of vibration by installing high frequency and low frequency vibration generators respectively, and to provide a mold vibration device for concrete molding that can shorten the working time.

1 is a side view showing a conventional mold vibration device for concrete molding.

2 is a front view showing a mold vibration apparatus for concrete molding according to the present invention.

3 is a plan view showing the operating state of the mold vibration apparatus for concrete molding according to the present invention.

Figure 4 is a front view showing an operating state of the mold vibration apparatus for concrete molding according to the present invention.

Explanation of symbols on the main parts of the drawings

20: base member 21: pillar

22: support frame 23: air spring bag

24: diaphragm 25: stopper

26: high frequency vibration generator 27,28: low frequency vibration generator

29,30: slide block 31,32: slide member

M: Mold

The mold vibration apparatus for concrete molding according to the present invention for achieving the above object includes a pair of base members, a plurality of pillars installed on the edge of the base member, a support frame connecting the base members, Concrete including a pair of diaphragms coupled to an upper side of the support frame via an air spring bag to independently transmit vibrations to the mold side, and a high frequency vibration generator and a low frequency vibration generator installed on the bottom of the diaphragm to generate vibrations. A mold vibration device for molding is provided.

Therefore, according to the present invention, a pair of diaphragms vibrate independently and transmit vibration to the mold side, thereby significantly improving the vibration effect of compacting concrete in the mold and simultaneously reducing work time, and impact force transmitted from the diaphragm to the base member side. This is minimized to prevent damage to each coupling portion of the device by the impact force.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Fig. 2 is a front view showing the mold vibration device for concrete molding according to the present invention, and Fig. 3 is a plan view of the mold vibration device for concrete molding according to the present invention, and reference numeral 20 denotes a base member provided in the lateral direction.

At both edges of the base member 20, a plurality of pillars 21 are installed upright and a pair of support frames 22 are connected to each other.

As the supporting frame 22 is fixed across both base members 20, both base members 20 are fixed to maintain a constant distance.

In addition, air spring bags 23 are expanded to both edges of the support frame 22 to expand as air is injected therein, and a pair of diaphragms 24 are disposed on the upper sides of the air spring bags 23. These are joined opposite each other.

The diaphragm 24 is installed independently of each other in the same direction as the base member 20, and the upper side of the support frame 22 prevents the diaphragm 24 from descending to an appropriate amount or more in advance when the diaphragm 24 descends. A stopper 25 for preventing damage to the spring bag 23 is coupled.

On the other hand, the high frequency vibration generator 26 and the low frequency vibration generator 27 and 28 are provided in the bottom face of the said diaphragm 24, respectively.

The high frequency vibration generator 26 is provided in a substantially central portion, and low frequency vibration generators 27 and 28 are provided on both sides thereof.

In addition, slide members 29 and 30 are mounted at both ends of the low frequency vibration generators 27 and 28, respectively, and slide members 29 and 30 are lifted on the inner surface of the column 21. Slide blocks 31 and 32 are mounted, respectively.

Position fixing pins 33 for fixing the mold M are coupled to the upper ends of the vibration generators 27 and 28.

The mold (M) is located on the conveyance table 36, which is transported by the wheels 35 along the rails 34, and the cavity C is filled with concrete.

In the mold vibrating apparatus for concrete molding according to the present invention configured as described above, the feed table 36 is appropriately positioned by the operation of the wheel 35 rotated on the rail 34 by the operation of a separate driving means, that is, the diaphragm ( When positioned above 24, air is supplied to the inside of the air spring bag 23 and expanded as shown in FIG.

At this time, the diaphragm 24 is raised in accordance with the expansion of the air spring bag 23 so that the fixing pin 33 formed at the upper end is inserted into a hole (not shown) formed in the bottom surface of the mold M. It remains fixed.

When the diaphragm 24 is raised, the slide members 29 and 30 slide upward in the slide blocks 31 and 32 coupled to the inside of the column 21 so that each diaphragm 24 is raised to the same height. Done.

At this time, when the appropriate amount of concrete is introduced into the cavity (C) formed inside the mold (M) by a separate concrete injection means, the high frequency vibration generator 26 and low frequency vibration generator (27) (28) is operated It generates high frequency of 6,000rpm or higher and low frequency of 3,200 ~ 3,800rpm, and the vibrating plate 24 vibrates by these frequencies and transmits the vibration directly to the mold M so that the concrete filled inside the cavity C It will be compacted.

The impact force when the high frequency vibration generator 26 and the low frequency vibration generators 27 and 28 are operated is minimized from being absorbed and blocked by the air spring back 23 at the lower side, and transmitted to the base member 20 side. On the side, the slide members 29 and 30 which slide in the slide blocks 31 and 32 are lifted to minimize the transmission of impact force.

Therefore, the coupling parts of the support frame 22 and the pillar 21 coupled to the base member 20 are prevented from being damaged.

Then, when the concrete in the mold (M) is sufficiently compacted by the generation of vibration for a certain time to discharge the air in the air spring bag 23, the air spring bag 23 is the original air as the air inside is discharged As a result, the diaphragm 24 is lowered so that the conveyance table 36 and the mold M become transferable, so that the subsequent mold M is positioned above the diaphragm 24.

When the diaphragm 24 descends, as the stopper 25 having a predetermined length is coupled to the upper end of the support frame 22, the diaphragm 24 is prevented from lowering below a predetermined height, and thus the diaphragm 24 Damage to the air spring back 23 due to the fall of) will be prevented.

In addition, the diaphragm 24 independently transmits vibration to the mold M according to the operation of the high frequency vibration generator 26 and the low frequency vibration generator 27, 28, thereby improving the vibration effect as well as remarkably improving the working time. It is possible to shorten it.

As described above, according to the present invention, a pair of diaphragms vibrate independently and transmit vibration to the mold side, thereby significantly improving the vibration effect of compacting concrete in the mold and at the same time reducing the working time. Lifting by the slide member which is supported by the spring back and slides in the slide block coupled to the pillar at the side, thereby minimizing the transmission of the impact force due to vibration to the base, the supporting frame and the pillar side. It has various effects such as preventing damage.

Claims (3)

A pair of base members 20, a plurality of pillars 21 which are erected on the edge of the base member 20, a support frame 22 connecting the base member 20, and the support frame 22 A pair of diaphragms 24 are coupled to the upper side of the through the air spring bag 23 to independently transmit the vibration to the mold (M) side, and installed on the bottom of the diaphragm 24 to generate vibration Mold vibration apparatus for concrete molding comprising a high frequency vibration generator 26 and a low frequency vibration generator 27, 28. The slide member (31) of claim 1, wherein slide blocks (31) and (32) are provided inside the column (21), and slide members (Sliding members) slide in the slide blocks (31) (32) at both ends of the diaphragm (24). 29) (30) is a mold vibration device for concrete molding, characterized in that installed. The mold vibration device for concrete molding according to claim 1, wherein a stopper (25) for controlling the amount of falling of the diaphragm (24) is coupled to the upper end of the support frame (22).