KR200280828Y1 - A metallic mold having slider with injection gateway function - Google Patents

Abstract

The present invention is provided with a gate for injecting the raw material on the slider to facilitate the ejection operation of the injection-molded product having a concave-convex structure on the side, and at the same time prevent the gate traces generated during the injection of the raw material on the main appearance of the product To provide a mold apparatus having a slider having a raw material injection gate function to improve the performance and aesthetics, and to reduce productivity and manufacturing cost, the upper die plate 140 is combined with a plurality of slider drive pins 150 is installed 100 and the lower plate 240 is coupled to correspond to the upper plate and the slider driving pin 150 is inserted and removed pin groove is formed, the ejecting device for removing the injection molded by the upper, lower plate It consists of the lower mold 200 is configured, the left and right sides of the upper and lower mold plates by the slider drive pin in the removal process of the upper and lower molds In the mold apparatus that the slider 300 is configured to be possible, the slider 300 is in communication with the gate 170 of the upper mold in a state in which the slider 300 is moved forward to the upper and lower plate side, and the side space between the upper and lower mold plates 140 and 240. The auxiliary gate 320 is formed to be in communication with the raw material supplied from the gate to the side space side, the ejection device in the lower mold corresponding to the same vertical axis line as the auxiliary gate 320 in the state in which the slider 300 is backward The hardened material discharge pin 330 is configured to be movable up and down by 260 to discharge the hardened raw material on the auxiliary gate during the injection process.

Description

Molding device with slider having the function of raw material injection gate {A METALLIC MOLD HAVING SLIDER WITH INJECTION GATEWAY FUNCTION}

The present invention relates to a mold apparatus having a slider having a raw material injection gate function, and more particularly, a raw material injection gate comprising a gate for raw material injection on a slider configured in a lower mold such that the side of the injection molding is moved left and right. It relates to a mold apparatus provided with a slider having a function.

1 is a perspective view illustrating a charging case of a general mobile phone, and as shown therein, the charging case 10 accommodates a rechargeable battery (not shown) used as a power source of the mobile phone therein, and at the front end thereof, a main body of the mobile phone. The engaging portion 12 is formed to be coupled to (not shown), and the terminal portion 14 and the like are formed in contact with an external power source at the rear of the upper surface thereof.

In addition, a plurality of protrusions 16 are formed on the top surface of the charging case 10 as shown in FIG. 1, and the protrusions 16 are formed of raw materials from the gate of the mold apparatus during the injection molding process of the charging case 10. As the projections remain as they are injected, these projections damage the appearance of the product, so it is common to configure the mold apparatus or to remove the mold when the molding is completed to minimize the generation of the projections.

On the other hand, Figure 2 is a cross-sectional view showing a conventional mold apparatus provided with a slider, as described above, the mold apparatus having the slider is a locking portion of the concave-convex structure on the vertical surface of the front end portion, such as the charging case 10 shown in FIG. In the injection molding process of forming the injection molding (12), if the mold part forming the locking portion 12 is not released in the state where the molding is completed, the ejection of the injection molding is impossible, and thus the injection molding having such a shape (a shape like a filling gauge) At the time of molding of a product having a structure of and formed by injection molding, the following reference numeral 10 is used to form a slider structure in the mold apparatus which is moved left and right to enable the ejection operation of the injection molded product.

Accordingly, the mold apparatus provided with the slider includes an upper mold 100 and a lower mold 200, and the upper mold 100 is coupled to one side of the injection molding machine, and the upper fixing plate to which the raw material injection unit 112 is coupled to the center part. 110, an auxiliary fixing plate 120 coupled to the lower portion of the upper fixing plate 110, and an upper plate 140 coupled to the lower portion of the auxiliary fixing plate 120 and forming an upper surface of the injection molding at a central portion thereof. The upper plate 130 to be coupled is configured, while the slider drive pin 150 having a rod shape is installed to be inclined at a predetermined angle on the upper plate 130, the slider drive pin 150 is a drive pin coupling member ( It is coupled to the 152 is installed in the drive pin installation groove 154 formed in the concave on the upper plate 130.

And the lower mold 200 is fixed to the fixed plate 210 coupled to the other side of the injection molding machine, the top of the fixed plate 210 is installed at regular intervals by a stopper 220 and the bottom surface of the injection molding approximately in the center The lower plate 240 to be molded is coupled to the lower plate 230 is formed with a pin groove 232 is inserted and removed the slider driving pin 150, the slider groove recessed in the left and right sides of the upper surface of the lower plate 230 When the injection molding is completed between the slider 250 and the lower die plate 240 and the upper die plate 140, the upper and lower dies 100 and 200 are separated from each other. An ejecting device 260 is configured to eject and separate the injection positioned on 240.

The slider 250 has a substantially rectangular parallelepiped shape, and the pin hole 252 into which the slider driving pin is inserted and removed is obliquely drilled at an angle equal to the inclination angle of the slider driving pin 150. In the insertion process of 150, an external force in the inward direction is applied to the pinhole 252 of the slider, so that the slider is moved to the lower plate 240 side, and the slider 250 in the removal process of the slider driving pin 150. To exert an external force to move to the outside (right in FIG. 2).

The ejection device 260 is located on the bottom of the fixed plate 210, the plate driving portion 262 including a rod 262a configured to be moved forward and backward on the fixed plate 210, and the plate driving portion 262 of the Coupled with the upper rod (262a) upper and lower plates (264, 266) is installed so as to move up and down between the fixing plate 210 and the lower plate 230, and the lower end between the upper and lower plates (264, 266) The plurality of eject pins 268 are coupled to each other and installed on the upper surface of the lower forming plate 240 by passing through the lower plate 230.

On the other hand, the process of molding the injection molding by using the above-described mold apparatus will be described in the upper fixing plate 100 and the lower mold 200 installed on one side and the other side of the injection molding machine in close contact with each other by the operation of the injection molding machine When the raw material is supplied to the raw material injection unit 112 of the 110, the upper mold plate 110, the auxiliary fixing plate 120, the upper plate 130, and the upper plate 140 are formed in the order of the upper plate 140. Into the space formed by the plate 140, the lower plate 240 and the slider 250 to be molded into a specific injection molding, that is, the bottom end of the gate 170 corresponds to the upper surface of the injection molding 10 is completed Since the position is to be formed on the upper surface of the molded product is formed projections 16 by the gate.

As described above, since the protrusion 16 is formed on the upper surface of the injection molded product, the protrusion 16 is formed on the upper surface of the injection molded product. Thus, the injection molded product may damage the merchandise and aesthetics of the entire product. In addition, since the projections must be removed as described above, a separate processing time and processing time are required, resulting in a decrease in productivity and an increase in manufacturing cost.

The present invention is to solve the above problems, the purpose is that the gate is provided for injection of the raw material on the slider is carried out during the injection of the injection material having an uneven structure on the side smoothly performed at the same time It is to provide a mold apparatus having a slider having a raw material injection gate function to improve the merchandise and aesthetics of the product and to reduce productivity and manufacturing cost by preventing the gate traces from occurring in the main appearance.

In order to achieve the above object, the present invention is coupled to one side of the injection molding machine and the upper die plate is coupled to form the upper surface of the injection molding and a plurality of slider driving pins are installed, the lower die plate is coupled to correspond to the upper die plate and the slider A pin groove is formed in which a driving pin is inserted and removed, and an ejection device configured to remove an injection molded product by the upper and lower die plates is configured to have a lower mold coupled to the other side of the injection machine corresponding to the upper mold. In the mold device configured to be moved left and right to the side of the upper and lower die plate by the slider driving pin in the process of detachment of the mold, the slider is in communication with the gate of the upper mold in the state of moving forward to the upper and lower plate side In communication with the side space between the upper and lower plate, the raw material supplied from the gate is supplied to the side space. A jaw gate is formed, and in the lower mold corresponding to the same vertical axis line as the auxiliary gate in the state in which the slider is backward, a hardening material discharge pin is configured to be moved up and down by an ejection device, and is cured on the auxiliary gate in the injection process. Characterized in that it is configured to discharge the raw material.

Preferably, the auxiliary gate is formed on the upper surface of the slider in communication with the gate of the upper mold and the gate connection portion formed with at least one pin lifting hole for the hardened material discharge pin is raised and formed, in communication with the gate connection portion , The gate nozzle portion for supplying the raw material to the side space side between the lower plate.

1 is a perspective view showing a charging case of a typical mobile phone,

2 is a cross-sectional view showing a conventional mold apparatus provided with a slider,

Figure 3 is an exploded perspective view showing a mold apparatus having a slider having a raw material injection gate function according to a preferred embodiment of the present invention,

4 is a schematic cross-sectional view of FIG.

5 is a cross-sectional view for explaining the operation of the mold apparatus having a slider having a raw material injection gate function according to a preferred embodiment of the present invention,

6 is a perspective view showing an injection molded by a mold apparatus having a slider having a raw material injection gate function according to a preferred embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: mold, 110: fixing plate,

120: Auxiliary fixing plate, 130: Senate plate,

140: upper plate, 150: slider drive pin,

200: lower mold, 210: fixed plate,

220: stopper, 230: bottom plate,

240: lower plate, 260: ejector,

300: slider, 310: pinhole,

320: auxiliary gate, 322: gate connection,

324: gate nozzle portion, 330: hardening material discharge pin.

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

Figure 3 is an exploded perspective view showing a mold apparatus having a slider having a raw material injection gate function according to a preferred embodiment of the present invention, Figure 4 is a schematic cross-sectional view of Figure 3, Figure 5 is a preferred embodiment of the present invention Sectional view for explaining the operation of the mold apparatus having a slider having a raw material injection gate function according to, Figure 6 is an injection molded by the mold apparatus having a slider having a raw material injection gate function according to a preferred embodiment of the present invention The same parts as in the related art as the perspective views showing the same reference numerals will be described.

In the mold apparatus having a slider having a raw material injection gate function according to the present invention, a trace such as a protrusion is not formed at a portion exposed to the outside, such as an upper surface of the injection molded product, by the gate for injection of raw materials during the injection molding process. It is advanced during molding of the injection molding so that a gate mark appears on a portion that is concealed in the assembled state (for example, a portion that is not exposed to the outside in a coupled state such as the engaging portion 12 of the charging case 10 shown in FIG. 6). A gate structure is constructed on the slider of the mold apparatus configured to be reversed at the time of taking out the injection molded product.

First, as shown in FIGS. 3 and 4, the upper mold 100 includes an upper fixing plate 110 coupled to one side of the injection molding machine and a raw material injection unit 112 coupled to a central portion thereof, and a lower portion of the upper fixing plate 110. The upper stationary plate 120 is coupled to the lower fixing plate 120 is coupled to the lower portion of the auxiliary fixing plate 120 and the upper plate (140) for forming the upper surface of the injection molding in its central portion is composed of the upper house On the plate 130, a slider driving pin 150 having a rod shape is coupled to the drive pin coupling member 152 and is inclined at a predetermined angle to the drive pin installation groove 154 formed in the concave on the upper plate 130. .

The lower mold 200 is installed on the fixing plate 210 coupled to the other side of the injection molding machine, the lower plate 230 is spaced apart at regular intervals via the stopper 220, and the lower portion of the lower plate 230 in the center The lower die plate 240 for molding the coupler is coupled to the pin groove 232 to which the slider drive pin is inserted and removed at a position corresponding to the slider drive pin 150.

In addition, the upper mold plate 230 of the lower mold 200, the upper and lower molds (100, 200) in the desorption process of the upper and lower mold plates 140, 240 by the slider drive pin 150 to move left and right to the side. A plurality of configured sliders 300 are provided, the sliders having a substantially hexahedral shape, and the pinholes 310 into which the slider driving pins 150 are inserted and removed at the rear thereof are equal to the inclination angle of the slider driving pins 150. Perforated at an angle.

And the slider 300 for forming the side of the tip of the injection molding of the slider 300 is in communication with the gate 170 formed in the upper mold 100 in the state of moving forward to the upper, lower plate (140, 240) side, The auxiliary gate 320 is formed to communicate with the side spaces formed between the lower die plates 140 and 240 so that the raw material supplied from the gate 170 is supplied to the side space side, and the auxiliary gate 320 is formed on the upper side of the slider 300. A gate connection part 322 formed on the surface thereof in communication with the gate 170 of the upper mold 100 and formed with at least one pin lifting hole 322a to which the hardened material discharge pin 330 to be described later is lifted, and the gate connection part; It is formed in communication with the 322 is composed of a gate nozzle portion 324 for supplying the raw material to the side space side between the upper and lower die plates (140,240).

In addition, when the slider 300 is backward after the injection molding is performed by the raw material supplied through the auxiliary gate 320, the raw material remains on the auxiliary gate 320 in the process of supplying the raw material to discharge the cured raw material. In the lower mold corresponding to the same vertical axis line as the auxiliary gate 320, the hardened material discharge pin 330 is configured to be moved up and down by the ejection device 260.

The cured raw material discharge pin 330 is inserted into the lower end between the upper and lower wheat plates (264, 266) of the ejection apparatus 230, which will be described later, as shown in Figure 4, the lower portion of the lower plate 240 and the lower plate ( It is inserted through the hole formed on the 230 is installed so as to match the pin lifting hole 322a in the state in which the slider 300 is reversed.

When the injection molding is completed between the lower die plate 240 and the upper die plate 140, and the upper and lower dies 100 and 200 are separated, the fixed plate for ejecting and separating the injection molded parts placed on the lower die plate 240. A plate driving part 262 including a rod 262a positioned at a bottom of the plate 210 and configured to move forward and backward on the fixed plate 210, and coupled to an upper portion of the rod 262a of the plate driving part 262. The upper and lower wheat plates 264 and 266 are installed to be movable up and down between the stationary plate 210 and the lower plate 230, and the upper and lower wheat plates 264 and 266 are combined with the lower end and the upper plate is the lower plate 230. A plurality of eject pins 268 are formed to penetrate and installed on the upper surface of the lower mold 240.

On the other hand, the mold apparatus provided with a slider having a gate function according to the present invention is not limited to the above-described structure can be applied to various modifications within the technical scope of the present invention, and FIGS. 3 to 5 Components not shown and described in the description is omitted because it is a component generally applied in a conventional mold device consisting of a lower mold and an upper mold.

The operation of the present invention as described above is as follows.

As shown in Figure 3 and 6, the injection molding machine is operated to mold the injection molding 10 in the state in which the upper mold 100 and the lower mold 200 described above is installed on one side and the other side of the injection molding machine When the mold 200 is operated in close contact with each other as shown in FIG. 4, the slider driving pin 150 formed on the upper plate 130 is retracted on the lower plate 230. When the insertion depth of the slider drive pin 150 is inserted into the deeper the slider is moved forward while the external force is moved to the inner side so that the slider is moved forward, and the front end of the slider driving pin 150 is moved toward the side of the lower plate 240. Will be located at.

In this state, when the molding raw material is pushed from the raw material injection unit 112, it flows through the gate 170 formed on the auxiliary fixing plate 120, the upper plate 130, and the upper plate 140, and flows on the upper surface of the slide 300. At the same time, the auxiliary gate 320 is transferred to the gate connection part 322 and supplied to the side space through the gate nozzle 324.

The raw material supplied in this way is filled in the internal space formed by the upper and lower die plates 140 and 240 and the slider 300 to form an injection molding 10 of the type shown in FIG. The upper mold 100 and the lower mold 200 are separated from each other by the operation of the bar. In this case, the slider driving pin 150 coupled to the upper plate 130 is separated from the pin hole 310 so that the slider 300 is disposed outside. The external force to be moved is applied to the slider gradually moves backward so that the tip portion is separated from the side of the lower plate 240.

When the slider 300 is reversed as described above, the residue (a) of the raw material injected for molding is left in the auxiliary gate 320 of the slider 300 so that such residue is used for repeated injection molding. The removal of the residue (a) is performed at the same time as the operation process of separating the injection molding from the lower mold 200 by the ejection device 260.

That is, as shown in FIG. 5, when the plate driving part 262 of the eject device 260 is operated to move the rod 262a, the upper and lower plates 264 and 266 positioned at the front end of the rod are advanced and interlocked thereto. As the pin 258 is advanced, the injection product is separated from the lower plate 240 to be separated, and at the same time, the hardened material discharge pin 330 coupled to the upper and lower wheat plates 264 and 266 is also raised, so the pin lifting hole 322a is provided. Protruding upward through the pressurized and discharged residue (a) remaining on the auxiliary gate.

On the other hand, according to the above-described action is possible to form an injection gate having a concave-convex structure on the side, such as the charging case of the mobile phone shown in FIG. .

According to the mold apparatus having a slider having a raw material injection gate function according to the present invention as described above, since the gate trace is formed on the concealed portion of the injection molding, the merchandise and aesthetics of the injection molding are improved, and the gate trace must be removed separately. It is a very useful design that improves productivity and reduces manufacturing costs since no process is required.

Claims (2)

The upper mold coupled to one side of the injection molding machine and forming the upper surface of the injection molding is combined, and the upper mold is provided with a plurality of slider driving pins, and the lower mold is coupled to correspond to the upper mold plate, and the pin driving grooves are inserted and removed. Eject apparatus for removing the injection molded by the upper, lower die plate is composed of a lower mold coupled to the other side of the injection molding machine corresponding to the upper mold, the upper and lower molds by the slider drive pin in the desorption process In the mold apparatus configured to move the left and right to the side of the upper and lower die plate, The slider is in communication with the gate of the upper mold and the auxiliary gate is formed so that the raw material supplied from the gate is supplied to the side space side in communication with the gate of the upper mold in the state of moving forward to the upper, lower plate side, In the lower mold, which is on the same vertical axis line as the auxiliary gate in the backward state of the slider, a hardened material discharge pin is configured to be moved up and down by an ejection device to discharge the cured raw material on the auxiliary gate during the injection process. Mold apparatus provided with a slider having a raw material injection gate function, characterized in that configured. The method of claim 1, The auxiliary gate may include a gate connection part formed on the upper surface of the slider so as to communicate with the gate of the upper mold, and at least one pin lifting hole to which the hardened material discharge pin is lifted; And a gate nozzle part formed to communicate with the gate connection part and configured to supply a raw material to the side space side between the upper and lower mold plates.