KR20240003500A - Temperature control system for blow molding device - Google Patents

Abstract

The present invention relates to a temperature control system for a blow molding device. More specifically, the present invention relates to a temperature control system for a blow molding device. More specifically, the quality control of the product is easy as no oil leaks occur, the main body and the heating means can be disassembled and assembled, the heating temperature can be easily controlled, and the high temperature heat is easily controlled. The present invention relates to a temperature control system for a blow molding device capable of replacing and repairing a heating means that emits heat. In the temperature control system for a blow molding device, a seating groove connected to a plurality of guide grooves formed at regular intervals is formed. A core mold assembly block body having a fixing hole in the seating groove and forming a through hole through which the shaft passes; A fixing hole is formed in the fixing plate inserted into the seating groove, a heating means consisting of a heater member integrally formed with the fixing plate, and a power connection line for supplying electricity to the heater member; It is installed between the core mold assembly block body and the core mold assembly block body to adjust the spacing of the core mold assembly block body, forms a groove into which a portion of the shaft is inserted, and communicates with the groove to connect power supplied from the outside. It is installed between the first auxiliary block, which forms a power supply hole through which an electric wire passes, and the core mold assembly block body and the core mold assembly block body to adjust the spacing of the core mold assembly block body and forms a groove into which a portion of the shaft is inserted. a space block body composed of a second auxiliary block and forming a fixing hole that can be coupled and fixed to the first auxiliary block; A chamfer is formed to penetrate the core mold assembly block body and fit into the groove of the space block body, and a power supply hole through which a wire passes through the chamfer portion is formed to connect the power supplied from the outside to connect the core mold assembly block body and the space block body. Its characteristic is that it consists of a shaft that maintains the balance of the body.

Description

Temperature control system for blow molding device {Temperature control system for blow molding device}

The present invention relates to a temperature control system for a blow molding device. More specifically, the present invention relates to a temperature control system for a blow molding device. More specifically, the quality control of the product is easy as no oil leaks occur, the main body and the heating means can be disassembled and assembled, the heating temperature can be easily controlled, and the high temperature heat is easily controlled. It relates to a temperature control system for a blow molding device that allows replacement and repair of heating means that emits.

In general, blow molding refers to manufacturing various types of plastic containers by expanding a hollow parison using an air blow method.

The mold device for performing such conventional blow molding is for molding a parison (P) as shown in Figure 6 of the accompanying drawing, and is a parison in which a plurality of resin coating hollow parts 110 having a parison shape are formed. A forming mold 100 is installed on the other side of the base body (B) for forming a hollow container, and a container forming mold 200 having a molding part 210 of a specific container shape is installed, and a parison forming mold ( It is a structure in which a core mold assembly 300 in which a core mold 330 is coupled by screws is installed between 100) and the container mold 200 to enable disassembly and assembly.

The operation of the above-mentioned conventional blow molding device is installed between the parison molding mold 100 and the container molding mold 200, and the core mold 330 is inserted into the hollow portion for resin application 110 so that the resin is applied to the surface. When the parison (P) is formed by covering the core mold (330), the core mold (330) is separated and pulled out, and then the core mold (330) on which the parison (P) is formed is rotated 180° toward the molding part (210) and the rotated core mold (P) is formed. When (330) is pushed into the molding part 210 and high-pressure air is supplied through the core mold 330, the parison (P) applied to the surface of the core mold 330 expands in the molding part 210. As it comes into close contact with the inner surface of the molded part 210, a container of a specific shape is formed.

At this time, when the core mold 330 has a low temperature, the parison (P) applied to the surface cools and does not expand with air, resulting in the production of defective products that must be discarded. In order to prevent this problem, as shown in Figure 5, an oil circulation passage 320 through which high-temperature oil circulates is formed inside the main body 310 of the core mold assembly 300, and at regular intervals on the outside. A plurality of oil circulation pipes 350 connected to the oil circulation passage 320 are fixedly installed by welding.

The oil circulation pipe 350, which consists of a double pipe, is inserted into the vertical hole 330a formed inside the core mold 330 to prevent the core mold 330 from being lowered, but the oil circulation pipe 350 is used to prevent the core mold 330 from being lowered. The high-temperature oil circulating in the main body 310 by pressure is adjusted to have a temperature between 120 and 130° C. by the heating means (H) and cooling means (C) installed in the oil tank 400.

However, the conventional blow molding device with the above structure has

First, since the oil must be heated using the heating means (H) during initial operation, it takes a long time to heat it to a certain temperature range.

Second, the oil is heated to a higher temperature than the set temperature by the high-temperature parison (P) applied to the surface of the core mold 330 installed in the core mold assembly 300, and is discharged at a temperature higher than the temperature supplied from the tank and circulates back to the tank. There is a problem that the temperature of the oil entering the core mold 330 becomes high, and a separate device is needed to control the temperature of the oil supplied to the core mold 330 to have a certain range, making the structure complicated and forming a flow path in the main body 310. There is also the problem of making it difficult to manufacture because it has to be ordered.

Third, when oil leakage occurs, the containers being manufactured are contaminated by the leaked oil, so all the containers being manufactured must be discarded, and the entire device must be disassembled after stopping use to find the leaking part. Even if found, there is a problem that the blow molding device cannot be used until repairs are completed.

The purpose of the present invention, which was devised in consideration of the above-described conventional problems, is to facilitate disassembly and assembly of a heating means that provides high-temperature heat, and thus to easily control high-temperature temperature, and is inserted into the inside of the core mold 330 to maintain high heat. Even if the provided heating means is broken or damaged, no leakage occurs. Even if the heating means is broken or damaged, only the damaged part produces a defective product, and other areas can be produced, preventing the entire product from becoming a defective product. The aim is to provide a temperature control system for blow molding equipment that has the advantage of preventing waste of raw materials.

The object of the present invention is to provide a temperature control system for a blow molding device, in which a seating groove connected to a plurality of guide grooves formed at regular intervals is formed, the seating groove is provided with a fixing hole, and a core mold assembly is formed with a through hole through which the shaft penetrates. Block font; A fixing hole is formed in the fixing plate inserted into the seating groove, a heating means consisting of a heater member integrally formed with the fixing plate, and a power connection line for supplying electricity to the heater member; It is installed between the core mold assembly block body and the core mold assembly block body to adjust the spacing of the core mold assembly block body, forms a groove into which a portion of the shaft is inserted, and communicates with the groove to connect power supplied from the outside. It is installed between the first auxiliary block, which forms a power supply hole through which an electric wire passes, and the core mold assembly block body and the core mold assembly block body to adjust the spacing of the core mold assembly block body and forms a groove into which a portion of the shaft is inserted. a space block body composed of a second auxiliary block and forming a fixing hole that can be coupled and fixed to the first auxiliary block; A chamfer is formed to penetrate the core mold assembly block body and fit into the groove of the space block body, and a power supply hole through which a wire passes through the chamfer portion is formed to connect the power supplied from the outside to connect the core mold assembly block body and the space block body. This is achieved by a temperature control system for blow molding equipment, which is characterized by consisting of a shaft that maintains the balance of the sieve.

This is achieved by a temperature control system for a blow molding device, wherein the seating plate has either a circular or square shape.

This is achieved by a temperature control system for a blow molding device, wherein the space block body is provided with a power connection line that supplies electricity to the heater member or a fixing clip that secures the power supply line.

The guide groove is formed inward from the side of the core mold assembly block body, and the depth of the guide groove is formed deeper than the seating groove. This is achieved by a temperature control system for a blow molding device.

In the present invention, it is easy to disassemble and assemble the heating means that provides high-temperature heat, so it is easy to control the high temperature temperature, and even if the heating means that is inserted inside the core mold and provides high heat is broken or damaged, there is no leakage. Even if the heating means breaks down or is damaged, only the damaged part produces a defective product, and products in other areas can be produced, preventing the entire product from becoming defective, thereby preventing waste of raw materials. It is a useful invention.

Figure 1 is an exploded perspective view showing the structure of a temperature control system for a blow molding device to which the technology of the present invention is applied.
Figure 2 is a combined perspective view showing the structure of a temperature control system for a blow molding device to which the technology of the present invention is applied.
Figure 3 is a cross-sectional view showing the structure of a temperature control system for a blow molding device to which the technology of the present invention is applied.
Figure 4a is a partial perspective view showing the structure of the guide groove and seating groove, which are the technical gist of the present invention.
Figure 4b is a cross-sectional view showing another embodiment of the space block, which is the main part of the present invention.
Figure 5 is a front view showing the structure of a conventional blow molding apparatus.
Figure 6 is an exemplary diagram showing a temperature control method of a conventional blow molding apparatus.

Hereinafter, a preferred embodiment of the present invention will be described in detail based on the attached drawings.

As shown in the attached drawing FIG. 5, the blow molding device is installed with a parison molding mold 100 in which a plurality of hollow parts 110 for resin application are formed to supply resin to form a parison, and the base body (B) On the other side, a container forming mold 200 having a container-shaped molding part 210 for forming a hollow container is installed, and disassembly and assembly is possible between the parison molding mold 100 and the container molding mold 200. It is a structure in which a core mold assembly 300, in which the core mold 330 is joined by screws, is installed.

In the above structure, the temperature control system 1 of the present invention for maintaining the core mold 330 at a constant temperature is shown in the attached drawing. Figure 1 is an exploded perspective view showing the structure of the temperature control system for a blow molding device to which the technology of the present invention is applied. 2 is a combined perspective view showing the structure of a temperature control system for a blow molding device to which the technology of the present invention is applied, and Figure 3 is a cross-sectional view showing the structure of a temperature control system for a blow molding device to which the technology of the present invention is applied. The temperature control system (1) for a blow molding device of the present invention includes a heating means (10) that is connected to a power line and emits high temperature, a core mold assembly block (20) that fixes the heating means (10), and a core. It is composed of a space block body (30) that maintains the gap between the mold assembly block bodies (20) and a shaft (40) that maintains the balance between the core mold assembly block body (20) and the space block body (30).

The structure of the core mold assembly block 20 includes a seating groove 22 connected to a plurality of guide grooves 21 formed at regular intervals, the seating groove 22 is provided with a fixing hole 22a, and a shaft 40 is provided. ) is a structure that forms a through hole through which two holes are installed in opposite directions.

At this time, as shown in Figure 4a of the attached drawing, the guide groove 21 is formed inward from the side of the block body, and the depth of the guide groove 21 is formed deeper than the seating groove 22. The reason for this is the power supply. This is because the wires that supply can be protected by entering the inside of the guide groove (21), and can also have the effect of improving the aesthetics.

The structure of the heating means 10 includes a rod-shaped heater member 11 and a heater member ( It is a structure consisting of a power connection line (13) that supplies electricity to 11).

The fixing plate 12 is used in either a circular or square shape. The fixing hole 12a can be formed in a circular shape, but the heating means 10 can be easily fixed and installed by forming the fixing hole 12a into a long hole preferably having a constant curvature.

The structure of the shaft 40 passes horizontally through the core mold assembly block body 20 and forms a chamfer 41 to fit into the groove 31 of the space block body 30, and the chamfer 41 has In order to connect power supplied from the outside, a power supply hole 42 through which a wire passes is formed to maintain the horizontal and balance of the core mold assembly block body 20 and the space block body 30.

The structure of the space block body 30 is installed between the core mold assembly block body 20 and the core mold assembly block body 20 to adjust the spacing of the core mold assembly block body 20 and the shaft 40. A first auxiliary block (30a) that forms a groove (31) into which a portion is inserted and a power supply hole (32) through which an electric wire passes in order to communicate with the groove (31) and connect power supplied from the outside. 2 The auxiliary blocks (30b) are butted together and bolted.

As shown in Figure 4b of the attached drawing, the space block body 30 can be used by installing a power connection line 13 that supplies electricity to the heater member 11 or a fixing clip 50 that secures the power supply line.

The operation of the temperature control system (1) for the blow molding device of the present invention having the structure as described above is performed by inserting the power line supplied from the outside into the hollow shaft, and the chamfer on one side of the chamfers 41 formed on both sides ( It is discharged through the power supply hole (42) formed in 41) and discharged through the power supply hole (32) of the first auxiliary block (30a).

When the power line for supplying power from the outside and the power connection line 13 installed in the heating means 1 are connected and power is supplied, the heater member 11 is heated to a high temperature. The heating temperature is controlled to maintain the range of 120 to 130°C. When the temperature falls below 120°C, the power to the teapot is automatically supplied, and when the heating temperature rises above 130°C, the power is automatically turned off.

As described above, if the heating means 10 using a power source malfunctions, the product in the part where the malfunction occurred is produced poorly, and at this time, it can be easily confirmed with the naked eye that the heating means 10 has broken down. Of course, a temperature sensor may be installed in each heating means 10 to determine whether there is a malfunction.

As described above, if the heater member 11 breaks down, the fixing plate 12 inserted into the seating groove 31 can be removed and easily replaced with a new heating means 10.

In the present invention, it is easy to disassemble and assemble the heating means that provides high-temperature heat, so it is easy to control the high temperature temperature, and even if the heating means that is inserted inside the core mold and provides high heat is broken or damaged, there is no leakage. Even if the heating means breaks down or is damaged, only the damaged part produces a defective product, and products in other areas can be produced, preventing the entire product from becoming defective, thereby preventing waste of raw materials. It is a useful invention.

Claims (4)

In the temperature control system for blow molding equipment,
A core mold assembly block body having a seating groove connected to a plurality of guide grooves formed at regular intervals, the seating groove having a fixing hole, and a through hole through which a shaft penetrates;
A fixing hole is formed in the fixing plate inserted into the seating groove, a heating means consisting of a heater member integrally formed with the fixing plate, and a power connection line for supplying electricity to the heater member;
It is installed between the core mold assembly block body and the core mold assembly block body to adjust the spacing of the core mold assembly block body, forms a groove into which a portion of the shaft is inserted, and communicates with the groove to connect power supplied from the outside. It is installed between the first auxiliary block, which forms a power supply hole through which an electric wire passes, and the core mold assembly block body and the core mold assembly block body to adjust the spacing of the core mold assembly block body and forms a groove into which a portion of the shaft is inserted. a space block body composed of a second auxiliary block and forming a fixing hole that can be coupled and fixed to the first auxiliary block;
A chamfer is formed to penetrate the core mold assembly block body and fit into the groove of the space block body, and a power supply hole through which a wire passes through the chamfer portion is formed to connect the power supplied from the outside to connect the core mold assembly block body and the space block body. A temperature control system for a blow molding device, characterized by a shaft that maintains the balance of the sieve.
According to claim 1,
A temperature control system for a blow molding device, wherein the seating plate has either a circular or square shape.
According to claim 1,
A temperature control system for a blow molding device, characterized in that the space block body is provided with a fixing clip for fixing a power connection line or a power supply line that supplies electricity to the heater member.
According to claim 1,
The guide groove is formed inward from the side of the core mold assembly block body, and the depth of the guide groove is formed deeper than the seating groove.