DE112016006377T5 - Core production machine with integrated microwave curing function - Google Patents

Abstract

There is disclosed a core manufacturing machine having a microwave curing integrated function that includes a microwave curing device and a mold, wherein the microwave curing device is disposed around the mold. When the mold is closed, upper and lower portions of the microwave curing apparatus are closed forming a closed cavity, the mold being received in the closed cavity, and when the mold is opened, the upper and lower portions of the microwave curing apparatus as well as the mold are separated from each other. The core manufacturing machine has a built-in microwave curing function, which achieves uniform drying and curing, long life of the sand core pieces, reduced energy consumption and better production efficiency. In addition, it can be effectively avoided that the sand core pieces must be displaced in the midst of production, thus simplifying the process of core production and reducing the labor intensity. In addition, the microwave curing device may be closed or opened together with the mold, and in the mold in the closed cavity formed when the microwave curing device is closed, microwave-induced curing may be performed, thereby avoiding radiation leakage as much as possible Core production machine is safer to use.

Description

FIELD OF THE INVENTION

The present invention relates to the technical field of core manufacturing machines, and more particularly to a core manufacturing machine integrally provided with a microwave curing function.

TECHNICAL BACKGROUND

To form a cavity inside a casting, sand grains and adhesives (e.g., clay, tung oil, or resin) are often used to form core sand, with sand core pieces (or mandrels) made by hand or by machinery (e.g., a core manufacturing machine) in a core box , The Sandkernstück must be dried before pouring and placed in the mold. Thereafter, liquid metal is poured into the mold and cooled. The sand core piece is then removed and a cavity is formed inside the casting.

In the prior art, the device commonly used to manufacture core pieces is a core manufacturing machine that includes a mold. When the core manufacturing machine is operated, a core box is fixed to a movable frame of the core manufacturing machine mold, and the core box moves following the mold to manufacture the core piece. Core manufacturing machines can be subdivided into cold box ("cold box") core shooters and hot box ("hot box") core shooters according to the principle of core piece manufacturing. The former uses a chemical cure without dehydration, whereas the latter uses a cure by heating. However, hot box core shooters can be further subdivided into hardnesses by means of organic curing agents and curing by means of inorganic curing agents, wherein curing by organic curing agents is carried out by heating to form the expected strength, wherein curing by inorganic curing agents to achieve the expected strength by heating and dehydration he follows. According to the prior art, the inorganic curing agent solidifies the sand core piece by heating and blowing hot air into the casting mold to remove the moisture from the core piece and solidify it. The energy loss is large, the production cycle takes a long time, the quality of the sand core piece is fluctuating and the reject rate is high.

However, in order to solve the above-mentioned problems in the prior art in the manufacture of the core after the core has been produced by the core manufacturing machine, it is manually removed, then placed in a microwave oven and dried and solidified by the microwaves. When the core is transported manually, the labor intensity is high and the core manufacturing process is complex and improper handling by a person can also cause damage to the sand core piece.

SUMMARY OF THE INVENTION

The following is an overview of the objects described in this invention. However, this overview is not intended to limit the scope of the claims.

The present invention provides a core manufacturing machine having a microwave curing integrated function wherein a microwave curing function is integrated in the core manufacturing machine, thereby achieving uniform drying and curing, long shelf life of the sand core pieces, reduced power consumption and production efficiency.

The present invention uses the technical solution described below:

A core manufacturing machine with an integrated microwave curing function includes a microwave curing device.

The core manufacturing machine herein comprises a mold with the microwave curing device disposed around the mold.

When the mold is closed, upper and lower portions of the microwave curing apparatus are in a closed state to form a closed cavity so that the mold is received in the closed cavity, wherein when the mold is opened, the upper and lower Section of the microwave curing device are separated together with the mold.

Preferably, the mold comprises an upper core box and a lower core box, the microwave curing apparatus comprising an upper housing at the top of the upper core box and a lower housing at the bottom of the lower core box, wherein the outer surface of the upper housing and / or the lower housing a microwave generator is provided.

When the upper core box and the lower core box are in a closed state, the upper housing and the lower housing are closed, whereby the closed cavity is formed.

Preferably, the upper housing has an inverted concave structure and the lower housing has a concave structure with the lower surface of the upper housing and the upper surface of the lower housing matching.

Preferably, the mold comprises an upper core box and a lower core box, the microwave curing apparatus including an upper housing at the top of the upper core box and a lower housing at the bottom of the lower core box, wherein at least one microwave generator at the outer surface of the upper housing Surface of the lower housing or the side parts of the mold is provided.

When the upper core box and the lower core box are in a closed state, the upper case, the lower case, and the side parts of the mold are closed to form the closed cavity.

In particular, it is preferable that the microwave curing apparatus further comprises an upper side case disposed laterally on the upper core case and a lower side case disposed laterally on the lower core case, the upper case being connected to the upper side case, the lower one Housing is connected to the lower side housing, wherein the upper side housing and the lower side housing are arranged corresponding to each other, and wherein at least one microwave generator on the outer surface of the upper housing, the outer surface of the lower housing, the upper side housing or the lower side housing is provided ,

Accordingly, when the upper core box and the lower core box are in a closed state, the upper case and the upper side case are closed, the lower case and the lower side case are closed, and the upper side case and the lower side case are in a closed state, respectively.

Particularly preferred is that the upper housing has an inverted (inverted) concave structure and the lower housing has a concave structure, the lower surface of the upper housing mating with the upper surface of the upper side housing, wherein the upper surface of the lower housing with the bottom surface of the lower side housing.

Particularly preferred is that the underside of the upper housing is provided with a first flange, wherein the upper side of the upper side housing is provided with a second flange, wherein the first flange is detachably connected to the second flange.

Particularly preferred is that the upper side of the lower housing is provided with a third flange, wherein the underside of the lower side housing is provided with a fourth flange, wherein the third flange is detachably connected to the fourth flange.

Particularly preferred is that the microwave generator is arranged on the upper surface of the upper housing.

Here, the number of the microwave generators is a plurality, and the plurality of microwave generators are arranged in a matrix.

Herein, a blower device is mounted in the microwave generator.

The core manufacturing machine has a built-in microwave curing function, which achieves uniform drying and curing, long life of the sand core pieces, reduced energy consumption and better production efficiency. In addition, it can be effectively avoided that the sand core pieces must be shifted in the middle of production, and thus the process of core production is simplified and labor intensity is reduced. In addition, the microwave curing apparatus may be closed or opened together with the mold, and in the mold, microwave-induced curing may occur in the closed cavity formed when the microwave apparatus is closed, and hence radiation leakage can be avoided as much as possible, so that the Core production machine is safer to use.

list of figures

• 1 FIG. 12 is a schematic view of the structure of the microwave manufacturing-integrated core manufacturing machine when the mold is closed; FIG.
• 2 FIG. 12 is a schematic view of the microwave manufacturing core manufacturing machine at the beginning of opening the mold, and FIG
• 3 Fig. 12 is a schematic view of the structure of the microwave manufacturing-integrated core manufacturing machine when the mold is opened.

In it is: 1 - upper core box; 2 - lower core box; 3 - upper side housing; 4 - lower side housing; 5 - upper housing; 6 - microwave generator; 7 - lower housing.

DETAILED DESCRIPTION OF THE INVENTION

For a better understanding of the present invention, the technical solution according to the invention will be explained in more detail with reference to the drawings and subsequent embodiments.

Embodiment 1

A core manufacturing machine having an integrated microwave curing function includes a microwave curing device. In this embodiment, which differs from the prior art, a microwave curing device with microwave curing function is additionally provided. The microwave curing apparatus may be an industrial microwave oven or the like. In the microwave curing apparatus, a blower device is provided. The integration of the microwave curing apparatus into the core manufacturing machine solves the problem of low drying efficiency existing in existing technology when using a core manufacturing machine and independent drying apparatus to make core pieces in accordance with existing technologies. At the same time, the problems of high work intensity and a lengthy core manufacturing process that arise due to the transport of the sand core pieces between the core manufacturing machine and the drying apparatus can be avoided, and the production efficiency and quality can be significantly improved.

Embodiment 2

Referring to 1 to 3 For example, a core manufacturing machine having a microwave curing integrated function includes a microwave curing device and a mold, wherein the microwave curing device is disposed around the mold.

When the mold is closed, upper and lower portions of the microwave curing apparatus are closed to form a closed cavity, the mold being received in the closed cavity, and when the mold is opened, the upper and lower portions of the microwave curing apparatus be separated together with the mold.

In the core manufacturing machine, a microwave curing device is disposed around the mold so that a microwave curing function is integrated. In operation, it can be effectively avoided that the sand core pieces must be shifted in the midst of production, and accordingly, the process of core production can be simplified and the labor intensity can be reduced, with uniform drying and hardening, long life of the sand core pieces, reduced energy consumption, and a better production efficiency can be achieved.

In addition, the microwave curing apparatus may be closed or opened together with the mold, and in the mold, microwave-induced curing may occur in the closed cavity formed when the microwave curing apparatus is closed, whereby radiation leakage can be avoided as much as possible, so that the core manufacturing machine safer in the application.

In addition, since the microwave curing apparatus can be closed or opened following the mold, there is no need to use a larger structure for accommodating the mold, whereby the material consumption can be reduced and the cost can be reduced.

In this embodiment, the mold comprises an upper core box 1 and a lower core box 2 wherein the microwave curing device is an upper housing 5 at the top of the upper core box 1 and a lower housing 7 at the bottom of the lower core box 2 includes. The microwave curing device also includes an upper side case 3 at the side of the upper core box 1 is arranged, and a lower side housing 4 at the side of the lower core box 2 is arranged.

In particular, the upper case 5 corresponding to the upper side case 3 connected, the lower case 7 is corresponding to the lower side case 4 connected and the upper side housing 3 corresponds to the lower side case 4 , More specifically, the upper case 5 an inverted concave structure on and the lower housing 7 has a concave structure, wherein the lower surface of the upper housing 5 with the upper surface of the upper side case 3 covers, and where the upper Surface of the lower case 7 with the lower surface of the lower side case 4 covers.

To adapt to the structural shape of the upper and lower openable and closable sections of the mold, in this embodiment, the upper housing 5 the microwave curing device fixed to the upper side housing 3 connected so that the upper case and the upper side case 3 together the upper core box 1 follow, with the lower case 7 firmly with the lower side case 4 is connected, so that the lower case 7 and the lower side case 4 the lower core box 2 move the following.

In a preferred embodiment, the underside of the upper housing 5 formed with a first flange and the top of the upper side housing 3 is formed with a second flange, wherein the first flange is detachably connected to the second flange. The top of the lower case 7 is formed with a third flange and the bottom of the lower side housing 4 is formed with a fourth flange, wherein the third flange is detachably connected to the fourth flange.

Thus form the upper housing 5 and the upper side case 3 together a top housing for one half of the cavity and the lower housing 7 and the lower side case 4 together form a bottom housing for the other half of the cavity.

In practical operation, the operating principles are the following:

As in 1 shown are when the upper core box 1 and the lower core box 2 in a closed state, that is, when the mold is closed, the upper housing 5 and the upper side case 3 due to their own firm connection when closed. The lower case 7 and the lower side case 4 are in the closed state due to their own firm connection. At this time, the upper side case 3 and the lower side case 4 accordingly in the closed state, since the upper core box 1 and the lower core box 2 when closed.

As in 2 shown are when the upper core box 1 and the lower core box 2 that is, when the mold is opened, the upper case 5 and the upper side case 3 due to their firm connection still in a closed state and the lower case 7 and the lower side case 4 are still in a closed state due to their fixed connection, at which time the upper side housing 3 and the lower side case 4 through the separation of the upper core box 1 and the lower core box 2 be separated from each other.

As shown in 3 are the upper side case 3 and the lower side case 4 completely separated.

At least on the outer surface of the upper case 5 , the outer surface of the lower housing 7 , the upper side case 3 or the lower side case 4 is a microwave generator 6 intended. As in 1 . 2 and 3 is shown is the microwave generator 6 on the upper surface of the upper housing 5 arranged, with the number of microwave generators 6 is a plurality, and wherein the plurality of microwave generators 6 is arranged in a matrix form. By selecting the frequency band and other parameters for the microwave generator 6 As well as the number and arrangement thereof, drying by means of microwave radiation can be realized in a wide range.

Further, in an inner part of the microwave curing apparatus, there is provided a blower device provided on the inside of the upper case 5 is arranged.

Embodiment 3

In this embodiment, the microwave curing apparatus includes an upper case 5 at the top of the upper core box 1 is arranged, and a lower housing 7 at the bottom of the lower core box 2 is arranged.

In contrast to the embodiment 2, there is no upper side housing 3 or lower side case 4 on the sides of the upper core box 1 and the lower core box 2 and an inner cavity is through the upper housing 5 , the lower case 7 and the mold itself is limited.

Preferably, the upper housing 5 an inverted concave structure on and the lower housing 7 has a concave structure. In this case, the lower surface of the upper housing coincides 5 with the upper surface of the upper core box 1 while the upper surface of the lower case 7 with the lower surface of the lower core box 2 covers. Thus, the upper case 5 and the upper core box 1 so interconnected that they move together, the lower case 7 and the lower core box 2 so interconnected that they move together or remain stationary.

Consequently, if the upper core box 1 and the lower core box 2 in a closed state, the upper case 5 , the lower case 7 and the sides of the mold in a closed state, wherein, when the upper core box 1 and the lower core box 2 to be opened, the upper case 5 the upper core box 1 following up and away from the lower core box 2 and the lower case 7 is moved. Regardless of whether the upper core box 1 and the lower core box 2 are in a closed or opened state, are the upper case 5 and the upper core box 1 always in a closed state with each other and the lower case 7 and the lower core box 2 are always in a closed state.

In this embodiment, at least the outer surface of the upper housing 5 , the outer surface of the lower case 7 or the side part of the mold with a microwave generator 6 Mistake.

In a preferred embodiment, the microwave generator is 6 on the upper surface of the upper housing 5 arranged, with the number of microwave generators 6 a plurality, and wherein the plurality of microwave generators 6 is arranged in a matrix form. By selecting the frequency band and other parameters for the microwave generator 6 , As well as the number and arrangement thereof, drying by means of microwave radiation can be realized in a wide range.

Further, in an inner part of the microwave curing apparatus, there is provided a blower device provided on the inside of the upper case 5 is arranged.

Embodiment 4

In this embodiment, the microwave curing apparatus includes an upper case 5 at the top of the upper core box 1 is arranged, and a lower housing 7 at the bottom of the lower core box 2 is arranged.

In contrast to the embodiment 3, the upper housing 5 and the lower case 7 directly matching components. At this point are the upper case 5 and the upper core box 1 connected so that they move together, the lower case 7 and the lower core box 2 are connected so that they move together or remain stationary. The upper housing and the lower housing can be separated from each other or closed so that the mold can be assembled well.

Specifically, in the present embodiment, the upper case 5 an inverted concave structure on and the lower housing 7 has a concave structure, the lower surface of the upper housing 5 with the upper surface of the lower case 7 matches.

If the upper core box 1 and the lower core box 2 are closed, the upper housing 5 and the lower case 7 when closed, to form the closed internal cavity. The mold is completely in the closed inner cavity. In this case, the mold is not involved in the formation of the closed internal cavity.

If the upper core box 1 and the lower core box 2 be brought into an open state, follow the upper case 5 and the lower case 7 the upper core box 1 and the lower core box 2 accordingly and will be opened.

In this embodiment, the outer surface of the upper housing 5 and / or the lower housing 7 with a microwave generator 6 Mistake.

In a preferred embodiment, the microwave generator is 6 on the upper surface of the upper housing 5 arranged, with the number of microwave generators 6 a plurality, and wherein the plurality of microwave generators 6 is arranged in a matrix form. By selecting the frequency band and other parameters for the microwave generator 6 , As well as the number and arrangement thereof, drying by means of microwave radiation can be realized in a wide range.

Further, in an inner part of the microwave curing apparatus, there is provided a blower device provided on the inside of the upper case 5 is arranged.

Industrial Applicability

According to the embodiments of the present invention, the core manufacturing machine may use microwaves and an air blower device of the microwave curing device to cure the sand core immediately after forming the sand core, while drying and hardening the sand core are done simultaneously and have high efficiency. Compared to the prior art 30-40 castings per hour, the core manufacturing machine of the present invention can realize more than 60 casts per hour. The performance was thus significantly increased and the breakage rate was significantly reduced.

Claims (12)

Core manufacturing machine with an integrated microwave curing function, characterized in that it comprises a microwave curing device. Core production machine after Claim 1 characterized in that it comprises a mold, wherein the microwave curing device is disposed around the mold, wherein, when the mold is closed, upper and lower portions of the microwave curing device are closed to form a closed cavity, the mold being in the closed cavity is received; and wherein, when the mold is opened, the upper and lower portions of the microwave curing device are separated from each other along with the mold. Core production machine after Claim 2 in which the mold comprises an upper core box and a lower core box, wherein the microwave curing apparatus includes an upper case at the top of the upper core box and a lower case at the bottom of the lower core box, the outer surface of the upper case and / or the lower case Housing is provided with a microwave generator, wherein, when the upper core box and the lower core box are closed, the upper housing and the lower housing are closed to form the closed cavity. Core production machine after Claim 3 wherein the upper housing has an inverted concave structure, the lower housing having a concave structure, the lower surface of the upper housing and the upper surface of the lower housing mating. Core production machine after Claim 2 wherein the mold comprises an upper core box and a lower core box, the microwave curing apparatus comprising an upper housing at the top of the upper core box and a lower housing at the bottom of the lower core box, at least one microwave generator at the outer surface of the upper housing; the outer surface of the lower housing or the side part of the mold is provided, wherein, when the upper core box and the lower core box are closed, the upper case, the lower case and the side part of the mold are closed to form the closed cavity. Core production machine after Claim 5 wherein the microwave curing apparatus further includes an upper side case disposed on the side of the upper core box and a lower side case disposed on the side of the lower core box, the upper case being connected to the upper side case, the lower one Housing is connected to the lower side housing, wherein the upper side housing and the lower side housing are arranged corresponding to each other, and wherein at least one microwave generator on the outer surface of the upper housing, the outer surface of the lower housing, the upper side housing or the lower side housing is provided wherein, when the upper core box and the lower core box are closed, the upper case and the upper side case are accordingly closed, the lower case and the lower side case are accordingly closed, and the upper side case and the lower side case äuse are accordingly closed. Core production machine after Claim 6 , wherein the upper housing has an inverted concave structure, the lower housing having a concave structure, the lower surface of the upper housing and the upper surface of the upper side housing mating, and wherein the upper surface of the lower housing and the lower surface of the upper housing matching bottom side housing. Core production machine after Claim 6 in which the underside of the upper housing is provided with a first flange, the upper side of the upper side housing being provided with a second flange, the first flange being detachably connected to the second flange. Core production machine after Claim 6 in which the upper side of the lower housing is provided with a third flange, the lower side of the lower side housing being provided with a fourth flange, the third flange being detachably connected to the fourth flange. Core production machine according to one of the Claims 3 to 6 , characterized in that the microwave generator is arranged on the upper surface of the upper housing. Core production machine after Claim 10 characterized in that the plurality of microwave generators is a plurality, the plurality of microwave generators being arranged in a matrix. Core production machine according to one of the Claims 1 to 9 , characterized in that a blower device is mounted in the microwave generator.

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