KR20230156988A - Mold for Minimizing the Occurrence of Defective Products and Transfer Molding Apparatus Including the Same - Google Patents

Abstract

Disclosed is a mold that minimizes the occurrence of defective products and a transfer molding device including the same.
According to one aspect of the present embodiment, one or more seating portions for seating the molding material compound and a shape intended to mold the molding material are implemented to change the shape of the molding material that is transformed into a gel state and flows into the molding material. A plurality of gates for changing, a connecting pipe connecting the seating portion and the gate to transfer the molding material transformed into a gel state from the seating portion to the gate, and a connecting pipe formed at one end of each gate to flow into the gate. A mold comprising a plurality of air vents that discharge the air, a vacuum tube connected to each air vent to transmit vacuum pressure to each air vent, and a vacuum pump that generates vacuum pressure and transmits the vacuum pressure to the vacuum tube. provides.

Description

Mold that minimizes the occurrence of defective products and transfer molding apparatus including the same {Mold for Minimizing the Occurrence of Defective Products and Transfer Molding Apparatus Including the Same}

The present invention relates to a mold that minimizes the occurrence of defective products due to residual air in the mold during product manufacturing and a transfer molding device including the same.

The content described in this section simply provides background information for this embodiment and does not constitute prior art.

Figure 5 is a plan view of a conventional mold.

The mold 500 is made into a gel state by seating the resin compound on the seating portion 510 and then applying heat and pressure. The mold 500 applies pressure to the gel-like resin using a plunger (not shown), so that the gel-like resin placed on the seating portion 510 is dispersed to each gate 520 in the mold.

At this time, air exists in the gate 520 even before the resin is dispersed by the plunger (not shown). When the resin is dispersed into each gate 520, the remaining air is discharged through an air vent (525) formed at an end opposite to the seating portion 510 of the gate 520. The resin is dispersed into each gate 520 of the mold, then hardened and injection molded into the shape of the mold.

However, the conventional mold 500 has the following problems. Even if the resins are manufactured through the same manufacturing process, each resin has its own fluidity (S/F: Spiral Flow). Accordingly, even if the mold 500 seats the resins manufactured through the same manufacturing process and disperses them to each gate 520, the degree of dispersion varies. While some resins disperse to the end of the gate 520 (in the air vent direction), there are also resins that do not. At the gate where low-liquidity resin is dispersed, the resin is not sufficiently dispersed, resulting in the problem of not being able to be injection molded into the shape of an intact mold.

Additionally, all air remaining in each gate 520 must be discharged through the air vent 525 due to dispersion of the resin. However, even though the resin is dispersed, residual air may remain within the gate. If the resin is cured with air remaining, the resin cannot fill the volume of air, and the mold shape will not be intact.

Because the dispersion of the resin and the discharge of intact air did not occur smoothly, the conventional mold 500 produced defective products at a certain rate.

The purpose of one embodiment of the present invention is to provide a mold and a transfer molding device including the same that can minimize the occurrence of defective products by smoothly dispersing residual air and resin in the gate.

According to one aspect of the present invention, one or more seating portions for seating the molding material compound and a shape intended to mold the molding material are implemented to change the shape of the molding material that is transformed into a gel state and flows into the molding material. A plurality of gates for changing, a connecting pipe connecting the seating portion and the gate to transfer the molding material transformed into a gel state from the seating portion to the gate, and a connecting pipe formed at one end of each gate to flow into the gate. A mold comprising a plurality of air vents that discharge the air, a vacuum tube connected to each air vent to transmit vacuum pressure to each air vent, and a vacuum pump that generates vacuum pressure and transmits the vacuum pressure to the vacuum tube. provides.

According to one aspect of the present invention, the seating portion is characterized in that it includes a through hole on a surface facing the connection pipe through which the molding material transformed into a gel state can be discharged into the connection pipe.

According to one aspect of the present invention, the through hole is characterized in that it has a cross-sectional area equal to that of the connection pipe.

According to one aspect of the present invention, the number of through holes is equal to the number of the connection pipes.

According to one aspect of the present invention, the mold and a lower plate that seats the mold so that pressure is applied to the molding material compound seated in the mold and a molding material that descends toward the lower plate and seats the mold in the mold. An upper plate that applies pressure to the compound, a vacuum tube that is connected to each air vent in the mold and transmits the vacuum pressure generated by the vacuum pump to each air vent, and a control unit that controls the operation of the upper plate and the vacuum pump. It provides a transfer molding device comprising:

According to one aspect of the present invention, one or more seating portions for seating the molding material compound and a shape intended to mold the molding material are implemented to change the shape of the molding material that is transformed into a gel state and flows into the molding material. A plurality of gates for changing, a connecting pipe connecting the seating portion and the gate to transfer the molding material transformed into a gel state from the seating portion to the gate, and a connecting pipe formed at one end of each gate to flow into the gate. It has a plurality of air vents for discharging the compressed air and a cross-sectional area relatively smaller than that of the air vents, and is implemented in a form that penetrates each air vent, and transmits the vacuum pressure flowing into it to each air vent. A mold is provided that includes a vacuum pump that generates pneumatic pressure and transmits the vacuum pressure to the vacuum tube.

According to one aspect of the present invention, the air vent is formed at an end opposite to the end of the gate facing the connection pipe.

According to one aspect of the present invention, the mold and a lower plate that seats the mold so that pressure is applied to the molding material compound seated in the mold and a molding material that descends toward the lower plate and seats the mold in the mold. An upper plate that applies pressure to the compound, a vacuum tube that is connected to each air vent in the mold and transmits the vacuum pressure generated by the vacuum pump to each air vent, and a control unit that controls the operation of the upper plate and the vacuum pump. It provides a transfer molding device comprising:

According to one aspect of the present invention, the control unit controls the upper plate to descend toward the lower plate, and controls the vacuum pump to operate simultaneously or before and after the upper plate.

According to one aspect of the present invention, the lower plate is characterized in that heat is applied to the mold.

According to one aspect of the present invention, the upper plate and the lower plate include engravings corresponding to the shape of the mold on surfaces facing each other.

According to one aspect of the present invention, one or more seating portions for seating the molding material compound and a shape intended to mold the molding material are implemented to change the shape of the molding material that is transformed into a gel state and flows into the molding material. A plurality of gates for changing, a connecting pipe connecting the seating portion and the gate to transfer the molding material transformed into a gel state from the seating portion to the gate, and a connecting pipe formed at one end of each gate to flow into the gate. It has a plurality of air vents for discharging the air and a cross-sectional area that is the same as the cross-sectional area of the air vents or within a preset error range, and is connected to each air vent to transmit the vacuum pressure flowing into the air vent to each air vent. A plurality of valves implemented in the air vent to adjust the amount of vacuum pressure delivered to the air vent, a plurality of air quantity measurement sensors disposed in each air vent to sense the amount of air remaining in each gate, and a vacuum tube that generates vacuum pressure It provides a mold characterized in that it includes a vacuum pump that transmits vacuum pressure.

According to one aspect of the present invention, the mold and a lower plate that seats the mold so that pressure is applied to the molding material compound seated in the mold and a molding material that descends toward the lower plate and seats the mold in the mold. An upper plate that applies pressure to the compound and a vacuum tube connected to each air vent in the mold to transmit the vacuum pressure generated by the vacuum pump to each air vent and control the operation of the upper plate, the vacuum pump, and the valve. Provided is a transfer molding device characterized in that it includes a control unit that operates.

According to one aspect of the present invention, the control unit is characterized in that it receives a sensing value from the air volume measurement sensor.

According to one aspect of the present invention, the control unit opens the valve relatively more so that relatively more vacuum pressure is transmitted to a gate with relatively more residual air than other gates.

According to one aspect of the present invention, the control unit opens the valve relatively less so that a relatively small vacuum pressure is transmitted to a gate with relatively less residual air than other gates.

As described above, according to one aspect of the present invention, there is an advantage of minimizing the occurrence of defective products by smoothly dispersing residual air and resin in the gate.

Figure 1 is a diagram showing a transfer molding apparatus according to an embodiment of the present invention.
Figure 2 is a plan view of a mold in a transfer molding apparatus according to an embodiment of the present invention.
Figure 3 is a cross-sectional view of a mold in a transfer molding apparatus according to an embodiment of the present invention.
Figure 4 is a diagram showing the structure of an air vent and a vacuum tube according to an embodiment of the present invention.
Figure 5 is a plan view of a conventional mold.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "include" or "have" should be understood as not precluding the existence or addition possibility of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification. .

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Additionally, each configuration, process, process, or method included in each embodiment of the present invention may be shared within the scope of not being technically contradictory to each other.

1 is a diagram showing a transfer molding apparatus according to an embodiment of the present invention.

Referring to Figure 1, the transfer molding apparatus 100 according to an embodiment of the present invention includes a lower plate (not shown), an upper plate (not shown), a mold (not shown), a vacuum tube (not shown), and a vacuum pump ( not shown) and a control unit (not shown).

The transfer molding device 100 molds the molding material into the shape of a mold. The transfer molding device 100 heats and pressurizes the molding material to transform it into a gel state and disperses it into the mold, allowing the molding material to be molded into the shape of the mold. Here, the molding material may be implemented as a resin, but is not limited to this and may be implemented as any material as long as it can be in a gel state at a preset temperature and pressure.

The lower plate (not shown) seats the mold (not shown) so that pressure can be applied to the molding material compound seated in the mold (not shown). Additionally, the lower plate (not shown) applies heat to a mold (not shown) placed on it, so that the molding material seated in the mold (not shown) can be transformed into a gel state.

The upper plate (not shown) applies pressure to the molding material seated in a mold (not shown) (placed on the lower plate (not shown)). The upper plate (not shown) descends toward the lower plate (not shown) and applies pressure to the mold (not shown). The molding material subjected to heat and pressure from the upper plate (not shown) easily changes into a gel state and is dispersed into the mold (not shown) by the pressure of the upper plate (not shown).

The upper and lower plates (not shown) include engravings of the shape of the mold (not shown) on surfaces facing each other. Accordingly, even if the upper plate (not shown) descends toward and joins the lower plate (not shown), damage to the mold (not shown) is prevented and the molding material is formed by the mold (not shown).

The mold (not shown) is provided with a shape for molding the molding material, so that when the dispersed molding material hardens into a solid phase, it is molded into the shape of the mold. As the upper plate (not shown) descends and applies pressure to the mold (not shown), air may flow into the mold (not shown). The introduced air must be discharged because it deteriorates the quality of the molded product that will be molded and ultimately manufactured as mentioned in the background technology. Accordingly, the mold (not shown) allows the air introduced through the air vent (described later with reference to FIG. 2) to be discharged.

A vacuum tube (not shown) is connected to each air vent in the mold (not shown), and transmits the vacuum pressure generated by the vacuum pump (not shown) to each air vent. Since the vacuum pressure is transmitted to the mold (not shown) through an air vent, it leads to a more rapid discharge of the air flowing into the mold. Furthermore, the vacuum pressure is transmitted to the mold (not shown), which can lead to more rapid and uniform dispersion of the molding material within the mold (not shown).

A control unit (not shown) controls the operation of each component. In particular, the control unit (not shown) controls the above-described operations of the upper plate (not shown) and the vacuum pump (not shown).

Figure 2 is a plan view of a mold in a transfer molding apparatus according to an embodiment of the present invention, and Figure 3 is a cross-sectional view of a mold in a transfer molding apparatus according to an embodiment of the present invention.

Referring to Figures 2 and 3, the mold 200 according to an embodiment of the present invention includes a seating portion 210, a gate 220, an air vent 230, a vacuum tube 240, a vacuum pump 250, and a plunger. (Plunger, 260).

The seating portion 210 provides a space for seating the molding material compound 310. The seating portion 210 may be made of an elastic material, such as rubber, to prevent the molding material compound 310 from being damaged even when the molding material compound 310 is pressured by the plunger 260. The seating portion 210 has a space for seating the molding material compound 310, and has a lower surface (opposite the side facing the plunger) so that the molding material transformed into a gel state can be discharged into the connection pipe 215. Includes a through hole (not shown). The through hole (not shown) formed in the seating portion 210 is formed to be equal to the number of connection pipes 215 to be connected to it and the (short) area of each connection pipe 215. As an example shown in FIG. 2, six through holes (not shown) may be formed on the lower surface of the seating portion 210.

The connection pipe 215 has a preset area, and receives molding material transformed into a gel state by heat applied from the lower plate (not shown) and pressure applied from the plunger 260, and flows into the gate 220. Deliver. The connection pipe 215 is connected to a through hole (not shown) of the seating portion 210 at one end and to the gate 220 at the other end, thereby transferring the molding material from the seating portion 210 to the gate 220. do.

The gate 220 is connected to the connection pipe 215 and receives the molding material transformed into a gel state. The gate 220 is implemented in the shape in which the molding material is to be molded, so that when the gel-state molding material hardens, it can be hardened in the shape of the gate 220.

The air vent 230 is formed at an end opposite to the end of the gate 220 facing the connection pipe 215, and discharges air introduced into the gate 220. As described above, when the upper and lower plates (not shown) are combined and the gel-like molding material is dispersed into the gate 220, air flows into the gate 220. To discharge this, an air vent 230 is formed at the end of the gate 220. If the (short) area of the air vent 230 is too large, a problem may occur where the molding material dispersed through the gate 220 is discharged, and if it is too small, a problem may occur in which air is not properly discharged. Accordingly, the air vent 230 is implemented with a preset (short) area and discharges air.

The vacuum tube 240 is connected to each air vent 230 and transmits vacuum pressure to each air vent 230 and the gate 220 connected thereto. The vacuum tube 240 transmits the vacuum pressure formed by the vacuum pump 250 to each air vent 230, allowing the air remaining in the gate 220 to be discharged to the outside of the gate 220 by vacuum pressure. . Typically, the gate 220 has a length that is significantly longer than the width. Accordingly, when the upper and lower plates (not shown) are combined and the gel-like molding material is dispersed through the gate 220, it is difficult for the air flowing into the gate 220 to be discharged, and the molding material also has limited fluidity. Accordingly, it may be difficult to smoothly disperse to the end of the gate 220. Accordingly, the vacuum pump 250 transmits vacuum pressure to each air vent 230 through the vacuum tube 240 so that the air remaining in the gate 220 can be discharged to the outside of the gate 220.

The vacuum tube 240 has a significantly smaller (short) area than the air vent 230 and is implemented in a form that penetrates the air vent 230, or has a (short) area similar to the air vent 230 to form an air vent ( 230) and is implemented in a connected form. The structure between the vacuum tube 240 and the air vent 230 is shown in FIG. 4.

Figure 4 is a diagram showing the structure of an air vent and a vacuum tube according to an embodiment of the present invention.

Referring to FIG. 4(a), the vacuum tube 240 is implemented with a (short) area that is significantly smaller than each air vent 230, and is implemented in a form that penetrates each air vent 230. The vacuum tube 240 penetrates each air vent 230 and transmits the vacuum pressure flowing into it to each air vent 230.

Meanwhile, referring to FIG. 4(b), the vacuum tube 240 is implemented with a (short) area that is the same or similar (within a preset error range) to each air vent 230. Unlike Figure 4(a), the air vent 230 may have a shape curved downward in an 'ㄱ' shape, and the end of the air vent 230 is connected to the vacuum tube 240.

At this time, the valve 420 is disposed in the portion 410 that is bent within the air vent 230 and connected to the vacuum tube 240, so that the vacuum pressure transmitted to the air vent 230 and through it to the gate 220 can be adjusted. there is. The valve 420 adjusts the delivery amount of vacuum pressure under the control of a control unit (not shown).

The air volume measurement sensor 430 is disposed at the top of the valve 420 (closer to the gate) among the above-described portions 410 in the air vent 230. As mentioned above, even if the molding material is the same, its fluidity may be different and the degree of dispersion during the same time period may be different. Accordingly, the amount of air remaining in each gate at a specific point in time may be different. At this time, if the vacuum pressure is transmitted equally to each gate, the vacuum pressure may be transmitted even after all the air has been discharged within one gate, and the transmission of vacuum pressure may be stopped while the air is not sufficiently discharged within the other gate. Cases may also occur. To prevent this problem, the air quantity measurement sensor 430 is placed at the above-mentioned location to sense the amount of air remaining in the gate 230.

Unlike the temperature sensor 440, the air volume measurement sensor 430 may be sensitive to temperature. Accordingly, a cooling means (not shown) may be placed around the air quantity measurement sensor 430 (inside/outside the air vent). However, when a cooling means (not shown) is placed, it may affect the amount (volume) of air remaining in the gate 220, which may cause an error in the measured value of the air amount measurement sensor 430. To prevent this problem, the temperature sensor 440 may be placed within the air vent 230 closer to the air quantity measurement sensor 430 in the gate direction. The temperature sensor 440 senses the temperature inside the air vent 230 at the corresponding location and transmits the temperature to the control unit (not shown). As the temperature sensor 440 senses the temperature at the corresponding location, the control unit (not shown) detects the temperature of the air quantity measurement sensor 430 that may be caused by a cooling means (not shown) disposed around the air quantity measurement sensor 430. Allows measurement values to be corrected.

Referring again to FIGS. 2 and 3, the vacuum pump 250 is connected to the vacuum tube 240, generates vacuum pressure, and transmits it into the vacuum tube 240. The vacuum pump 250 generates vacuum pressure of an appropriate size under the control of a control unit (not shown).

The plunger 260 is formed on the upper plate (not shown) and presses the molding material seated on the seating portion 210. The plunger 260 descends together with the lowering of the upper plate (not shown), pressurizes the molding material, helps it change into a gel state, and disperses the gel-state molding material to each gate. The plunger 260 is formed in the upper plate (not shown) as many as the number of seating parts 210, and presses the molding material seated on each seating part 210.

The control unit (not shown) controls the operation of the upper plate (not shown) and the vacuum pump 250, and can further control the operation of the valve 420 by receiving sensing values from each sensor 430 and 440.

The control unit (not shown) controls the operation of the upper plate (not shown) and the vacuum pump 250. When the molding material compound is placed on the seating portion 210, the control unit (not shown) controls the upper plate (not shown) to move toward the lower plate (not shown). At this time, the control unit (not shown) controls the operation of the vacuum pump 250 along with or before and after the control of the upper plate (not shown). By applying vacuum pressure in advance to the gate 220 before the molding material is transformed into a gel state under pressure and dispersed, the air discharge efficiency is further improved to prevent residual air from existing, and the molding material is dispersed more smoothly. make it possible The molding material is dispersed in a gel state, but if the molding material is not dispersed smoothly, it may harden without being completely dispersed within the gate 220. The control unit (not shown) controls the operations of the upper plate (not shown) and the vacuum pump 250 as described above to prevent the above-mentioned problems from occurring.

Furthermore, when the air vent 230 and the vacuum tube 240 are connected in the form of FIG. 4(b), the control unit (not shown) receives sensing values from each air volume measurement sensor 430 and temperature sensor 440 and , determine the amount of residual air in each gate. The control unit (not shown) adjusts the valve 420 so that the amount of vacuum pressure to be delivered to each gate is different depending on the determined residual air amount. The control unit (not shown) opens the valve 420 relatively more so that more vacuum pressure is transmitted to the gate with a lot of residual air, and opens the valve 420 so that less vacuum pressure is transmitted to the gate with a little residual air. Relatively less open. As the control unit (not shown) controls the valve 420 based on the sensing value, the molding material is prevented from being discharged through the air vent 230 without residual air remaining in the gate.

In addition, since each air vent 230 and the vacuum tube 240 are connected, when the molding material flows into the air vent 230 and hardens within the vacuum tube 240, it is located at the rear end from the cured point (in the direction away from the vacuum pump). Vacuum pressure may not be transmitted to the air vent 230 located in ). Since the control unit (not shown) receives the sensing value as described above and precisely controls the valve 420, the above-described problem can be prevented.

Meanwhile, the control unit (not shown) corrects the sensing value of the air mass measurement sensor 430 based on the sensing value received from the temperature sensor 440 and considering the relationship between temperature and gas volume. The control unit (not shown) controls the valve 420 as described above by relatively accurately determining the amount of residual air in the gate using the corrected sensing value.

The above description is merely an illustrative explanation of the technical idea of the present embodiment, and those skilled in the art will be able to make various modifications and variations without departing from the essential characteristics of the present embodiment. Accordingly, the present embodiments are not intended to limit the technical idea of the present embodiment, but rather to explain it, and the scope of the technical idea of the present embodiment is not limited by these examples. The scope of protection of this embodiment should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of this embodiment.

100: Transfer molding device
200, 500: Mold
210, 510: Seating part
220, 520: Gate
230, 525: Air vent
240: vacuum tube
250: Vacuum pump
260: plunger
310: Molding material compound
420: valve
430: Air volume measurement sensor
440: Temperature sensor

Claims (16)

One or more seating portions for seating the molding material compound;
A plurality of gates that are implemented in the desired shape to mold the molding material and transform into a gel state to change the shape of the molding material flowing into the molding material;
a connection pipe that connects the seating portion and the gate and transfers the molding material transformed into a gel state from the seating portion to the gate;
A plurality of air vents formed at one end of each gate to discharge air introduced into the gate;
A vacuum tube connected to each air vent and transmitting vacuum pressure to each air vent; and
A vacuum pump that generates vacuum pressure and delivers it to the vacuum tube.
A mold comprising: According to paragraph 1,
The seating part,
A mold comprising a through hole on a surface facing the connection pipe through which the molding material transformed into a gel state can be discharged into the connection pipe. According to paragraph 2,
The through hole is,
A mold characterized in that it has a cross-sectional area equal to the cross-sectional area of the connecting pipe. According to paragraph 2,
The through hole is,
A mold characterized in that it is formed in the same number as the number of connection pipes. The mold according to any one of claims 1 to 4;
a lower plate that seats the mold so that pressure is applied to the molding material compound seated in the mold;
an upper plate that descends toward the lower plate and applies pressure to the molding material compound seated in the mold;
A vacuum tube connected to each air vent in the mold and transmitting vacuum pressure generated by the vacuum pump to each air vent; and
Control unit that controls the operation of the upper plate and the vacuum pump
A transfer molding device comprising a. One or more seating portions for seating the molding material compound;
A plurality of gates that are implemented in the desired shape to mold the molding material and transform into a gel state to change the shape of the molding material flowing into the molding material;
a connection pipe that connects the seating portion and the gate and transfers the molding material transformed into a gel state from the seating portion to the gate;
A plurality of air vents formed at one end of each gate to discharge air introduced into the gate;
a vacuum tube that has a cross-sectional area that is relatively smaller than that of the air vents and is implemented in a form that penetrates each air vent to transmit the vacuum pressure flowing into the vacuum tube to each air vent; and
A vacuum pump that generates vacuum pressure and delivers it to the vacuum tube.
A mold comprising: According to clause 6,
The air vent is,
A mold, characterized in that formed at an end opposite to the end of the gate facing the connection pipe. The mold of paragraph 6 or 7;
a lower plate that seats the mold so that pressure is applied to the molding material compound seated in the mold;
an upper plate that descends toward the lower plate and applies pressure to the molding material compound seated in the mold;
A vacuum tube connected to each air vent in the mold and transmitting vacuum pressure generated by the vacuum pump to each air vent; and
Control unit that controls the operation of the upper plate and the vacuum pump
A transfer molding device comprising a. According to clause 8,
The control unit,
A transfer molding device, characterized in that when controlling the upper plate to descend toward the lower plate, the vacuum pump is also controlled to operate simultaneously or before and after the upper plate. According to clause 8,
The lower plate is,
A transfer molding device characterized in that heat is applied to the mold. According to clause 8,
The upper plate and the lower plate are,
A transfer molding device comprising engravings corresponding to the shape of the mold on surfaces facing each other. One or more seating portions for seating the molding material compound;
A plurality of gates that are implemented in the desired shape to mold the molding material and transform into a gel state to change the shape of the molding material flowing into the molding material;
a connection pipe that connects the seating portion and the gate and transfers the molding material transformed into a gel state from the seating portion to the gate;
A plurality of air vents formed at one end of each gate to discharge air introduced into the gate;
a vacuum tube having a cross-sectional area that is the same as that of the air vent or within a preset error range, and is connected to each air vent to transmit vacuum pressure flowing into the vacuum tube to each air vent;
A plurality of valves implemented in each air vent to adjust the amount of vacuum pressure delivered to the air vent;
A plurality of air quantity measurement sensors disposed in each air vent and sensing the amount of air remaining in each gate; and
A vacuum pump that generates vacuum pressure and delivers it to the vacuum tube.
A mold comprising: The mold of paragraph 12;
a lower plate that seats the mold so that pressure is applied to the molding material compound seated in the mold;
an upper plate that descends toward the lower plate and applies pressure to the molding material compound seated in the mold;
A vacuum tube connected to each air vent in the mold and transmitting vacuum pressure generated by the vacuum pump to each air vent; and
A control unit that controls the operation of the upper plate, the vacuum pump, and the valve
A transfer molding device comprising a. According to clause 13,
The control unit,
A transfer molding device characterized in that it receives a sensing value from the air quantity measurement sensor. According to clause 14,
The control unit,
A transfer molding device characterized in that the valve is opened relatively more so that relatively more vacuum pressure is transmitted to the gate with relatively more residual air than other gates. According to clause 14,
The control unit,
A transfer molding device characterized in that the valve is opened relatively less so that relatively less vacuum pressure is transmitted to the gate with relatively less residual air than other gates.

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