WO2017018712A2 - Injection molding apparatus - Google Patents

Abstract

The present invention discloses an injection molding apparatus, and this present invention forms a multistage pin point gate in a 3 stage molding apparatus. Accordingly, while products having interrelationships are simultaneously injection molded, and the cycle time for injection molding during the mass production of products is shortened through injection molding, which is the advantage of a 3 stage mold, so as to improve the production efficiency of a product, and the efficiency of separating a product from a runner is raised, which is the advantage of a 2 stage mold, the advantages of existing 2 stage molds and 3 stage molds are simultaneously met so that the dimensional accuracy of a product that is injection molded can be increased, the waste of materials during the injection molding of products can be reduced, the size of a runner can be freely adjusted, and an assortment of gate configurations can be selected. So that flexible condition control and quality reproducibility - that is, the deviation in product quality between a product that is initially injection molded and the same product that is injection molded thereafter can be reduced, the combining and the injection molding of high-grade products is made possible, meanwhile manufacturing and production costs can be reduced.

Description

Injection Molding Device

The present invention relates to an injection mold apparatus, and more particularly, to an injection mold apparatus for enabling simultaneous manufacture of related products.

In general, the plastic injection process is a final product is made through a step consisting of raw material drying process, injection machine raw material input process, injection molding process, molded product take-out process, post-processing and packaging process. Such injection mold apparatus is mainly composed of two-stage molds and three-stage molds.

The two-stage mold apparatus is disclosed in Korean Utility Model Publication No. 20-1998-0042735 (published on September 25, 1998), Korean Utility Model Publication No. 20-2000-0001351 (published on January 25, 2000), Korean Patent Publication No. 10- 2015-0035608, published April 4, 2015. This two-stage mold allows separate injection molded products and runners.

However, the conventional two-stage mold apparatus has a problem that the injection molded product is unbalanced because the length, the cross-sectional area of the gate, or the arrangement of the runners are not uniformly designed. This has the disadvantage of not injection molding several products having a relationship with each other through one mold device at the same time.

The conventional two-stage mold apparatus has the following problem.

First, the dimensional precision is low.

Second, as sprues are formed long, there is a lot of material waste during injection molding.

Third, it is difficult to adjust the size of the runner, and the gate selection is limited.

Fourth, flexible condition control and quality reproducibility, that is, a problem arises that the quality of each product is not the same and deviation occurs when injection molding the same product again after the first injection molding for the product.

Fifth, it is not applicable to fusion and high-end products.

Sixth, the manufacturing and production cost of the injection part has a high disadvantage.

On the other hand, the three-stage mold is a mold apparatus of a type suitable for producing small parts that require a large amount of production, products that require precision, products that should not be exposed to the outside, or large products that cannot easily flow resin. to be. Such a three-stage mold is capable of automatic injection, which allows continuous production of injection molding products, thereby enabling mass production. This three-stage mold is disclosed in Utility Model Publication No. 20-1989-0008614 (published on May 29, 1989) Publication No. 10-2006-0107001 (published October 13, 2006).

However, the conventional three-stage mold apparatus has a problem that the injection molded product is unbalanced because the length of the gate, the cross-sectional area, or the arrangement of the runners are not uniformly designed.

In addition, the conventional three-stage mold apparatus has a disadvantage that it is not possible to simultaneously injection molding several products having a relationship with each other through one mold apparatus.

In addition, the conventional three-stage mold apparatus has low dimensional accuracy. In addition, the sprue was formed long, and the tunnel and side gates were introduced into the secondary sprue and runner, resulting in a lot of material waste during injection molding.

In addition, it is difficult to adjust the size of the runner, and the gate selection has a limited disadvantage.

In addition, flexible condition control and quality reproducibility, that is, a problem arises that the quality is not the same for each product and the deviation occurs when injection molding the same product again after the first injection molding for the product.

In addition, it is not applicable to the fusion and high-quality products, and the manufacturing and production cost of the injection part has a high disadvantage.

In particular, while the conventional three-stage mold apparatus has the advantage that the mass production is possible by continuously injection molding the product, the cycle time of injection molding according to the mass production (Cycle Time) has a long disadvantage that the efficiency is inferior.

The present invention improves the problems of the conventional two-stage or three-stage mold apparatus, and provides an injection mold apparatus for implementing a multi-stage pin point gate in the three-stage mold apparatus.

The present invention for implementing an injection mold apparatus as described above is to shorten the cycle time (Cycle Time) of the injection molding during mass production of the product through the injection molding which is the advantage of the three-stage mold while simultaneously injection molding the products having a correlation with each other To increase production efficiency.

In addition, the present invention for implementing the injection mold apparatus as described above is to improve the separation efficiency of the product and the runner which is the advantage of the two-stage mold, it is possible to meet the advantages of the conventional two-stage mold and three-stage mold at the same time.

The injection mold apparatus of the present invention for achieving the above object comprises: a fixed side mold portion into which a resin for injection molding of a product is injected, and a movable side mold portion to be joined or separated from the fixed side mold portion according to driving of a driving unit; In the conventional injection mold apparatus comprising: an insert molding block having a plurality of molding grooves are provided between the fixed side mold portion and the movable side mold portion to simultaneously injection mold a plurality of products having assembly relations with each other, and the insert The molding support block supporting the molding block is configured to be lifted and lowered, and the spurs and flow paths are formed in the fixed side mold part to supply resin for injection molding of the product to the insert molding block, and through the flow path. A runner plate having a plurality of runner lock pins separated from the insert molding block when the resin is supplied to maintain the connection with the insert molding block during injection molding of the product, and when the injection molded product is taken out; And a lowering and lowering position of the runner plate, guides the resin supplied through the flow path of the runner plate and the runner lock pin to the insert molding block, and separates the injection molded product from the insert molding block. A stripper plate having a plurality of runners and a plurality of gate pins to be provided; Combining configuration.

In addition, the fixed-side mold portion, the first and second top fixing plates clamped to the injection machine, the upper plate coupled between the first and second top fixing plates, and a heating block located in the upper plate to heat the resin It is configured to include.

The movable side mold part may further include a fixing plate, a leg part coupled to the fixing plate, a support plate supported by the leg part, and the fixing plate and the leg part from the fixed side mold part when the driving part is driven. It is coupled to the eject guide pin for lifting up and down to form or separate the support plate, the plate and plate support plate which is provided in the space formed between the fixing plate and the leg portion and the support plate to be raised and lowered from the driving of the drive unit, and the plate support plate It comprises a plurality of mill pins for extracting the injection-molded products from the molded support block, and the return plate for returning the mill plate and the plate support plate and the mill pin to the original position using the spring force of the return spring.

In addition, the runner lock pin constituting the multi-stage is formed in the same or different lengths corresponding to the molding groove provided in the insert molding block.

In addition, the stripper plate is configured to be connected to the rod of the operating part fixed to the second upper fixing plate to enable the lifting and lowering.

In addition, the drive unit and the operating unit is a hydraulic cylinder.

In addition, the insert molding block is formed to form a gate hole communicating with the forming groove, the gate hole is configured to insert the gate pin formed on the stripper plate.

In addition, the gate pin may include a pin point gate, a side gate, a tunnel gate, a direct gate, a fan gate, an edge gate, One or more of a ring gate, a flash gate, a tab gate, a diaphragm gate, and a cashew gate.

In addition, the molding grooves formed in the insert molding block are separately formed or connected to the plurality of molding grooves by the cavity runner and / or the cavity gate.

In addition, the gate hole is formed in the upper end of the forming groove, the cavity runner and the cavity gate is formed in the lower end of the forming groove.

As described above, the present invention implements a multi-stage pin point gate in a three-stage mold apparatus, thereby mass-producing a product through injection molding, which is an advantage of three-stage molds, while simultaneously injection-molding products having a relationship with each other. By shortening the cycle time of injection molding, the production efficiency is increased.

In addition, the present invention can simultaneously meet the advantages of the conventional two-stage mold and three-stage mold while increasing the separation efficiency of the product and the runner, which is the advantage of the two-stage mold.

In addition, the present invention is to increase the dimensional accuracy for the product to be injection molded, it is possible to reduce the material waste during injection molding for the product.

In addition, the present invention freely adjusts the size of the runner, as well as select the gate pin of various forms (eg pin point, side, tunnel, direct, fan, edge, ring, flash, tab, diaphragm, cashew, etc.) You can do it.

In addition, the present invention is to reduce the quality deviation for each product when the flexible condition control (Flexible Condition Control) and quality reproducibility, that is, injection molding the same product again after the first injection molding for the product.

In addition, the present invention is to enable the injection molding of fusion and high-quality products, and to expect the effect of reducing the manufacturing and production costs.

1 is a schematic cross-sectional view showing the structure of an injection mold apparatus according to an embodiment of the present invention.

Figure 2 is a schematic cross-sectional view showing a state in which the movable mold side of the injection mold apparatus is lowered in an embodiment of the present invention.

Figure 3 is a schematic cross-sectional view showing a moving state of the stripper plate in an embodiment of the present invention.

Figure 4 is a schematic cross-sectional view showing a state in which the product is withdrawn from the insert molding block in the embodiment of the present invention.

Figure 5 is a schematic cross-sectional view showing a state in which the product is extracted by the pin from the molded support block in the embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail with reference to the accompanying drawings. However, embodiments of the inventive concept are not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the embodiments may make the disclosure of the present invention complete and the technology to which the present invention pertains. It is provided to fully inform those skilled in the art the scope of the invention, and is only defined by the scope of the claims in the embodiments of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase.

As used herein, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, the embodiments described herein will be described with reference to cross-sectional views and / or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content. Accordingly, shapes of the exemplary views may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in form or required form according to the manufacturing process. For example, the region shown at right angles may be rounded or have a predetermined curvature. Accordingly, the regions illustrated in the figures have schematic attributes, and the shape of the regions illustrated in the figures is intended to illustrate a particular form of region of the device and is not intended to limit the scope of the invention.

Like reference numerals refer to like elements throughout the specification. Accordingly, the same or similar reference numerals may be described with reference to other drawings, even if not mentioned or described in the corresponding drawings. Also, although reference numerals are not indicated, they may be described with reference to other drawings.

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

1 is a cross-sectional schematic view showing the structure of an injection mold apparatus according to an embodiment of the present invention, Figure 2 is a cross-sectional schematic view showing a state in which the movable mold side of the injection mold apparatus is lowered in an embodiment of the present invention, Figure 3 4 is a cross-sectional schematic view showing a moving state of the stripper plate as an embodiment of the invention, Figure 4 is a schematic cross-sectional view showing a state that the product is drawn out from the insert molding block in the embodiment of the present invention, Figure 5 is molded in an embodiment of the present invention A schematic cross-sectional view showing a state in which the product is extracted by the mil pin from the support block.

1 to 5, the injection mold apparatus according to the embodiment of the present invention includes, in addition to the fixed side mold part 100 and the movable side mold part 200, an insert molding block 10 and a molding support. Block 20, runner plate (Runner Plate) 30, the stripper plate (Stripper Plate) 40 is further included.

The fixed side mold part 100 is a molten resin for injection molding of a plurality of products (c1, c1 ', c2, c2', c3, c3 ', c4) is injected, the clamping mounting The upper and lower plates 101 and 102, the upper and lower plates 103 coupled between the first and second upper and lower plates 101 and 102, and the resin are positioned in the upper and lower plates 103 to fix the resin. It is configured to include a heating block 104 for heating to maintain at a temperature.

The movable side mold part 200 is to be joined to or separated from the fixed side mold part 100 according to the driving of a driving part (not shown), and the fixing plate 201 and the legs coupled to the fixing plate 201. A part 202, a supporting plate 203 supported by the leg part 202, and the fixing plate 201 and the leg part 202 and the supporting plate from the fixed side mold part 100 when the driving part is driven. An ejection guide pin 204 for elevating or disengaging the 203 to form or separate, and provided in a space formed between the fixing plate 201, the leg 202, and the support plate 203. The lowered plate 205 and plate support plate 206, and the product (c1, c1 ', c2, c2', c3, c3 ') coupled to the plate support plate 206 and injection molded from the molded support block 20 and a plurality of mill pins 207 for extracting c4, and the spring plate 205 and the plate support plate 206 and the mill pins 207 from the return springs 209. Using ringryeok is placed by comprising: a return pin 208 to return to its original position.

Here, the driving unit is a hydraulic cylinder for raising and lowering the eject guide pin 204.

The insert molding block 10 is supported by a separate guide block (not shown) between the fixed side mold part 100 and the movable side mold part 200, and configured to move up and down, A plurality of molding grooves 11 are provided to simultaneously injection molding a plurality of products (c1, c1 ', c2, c2', c3, c3 ', c4) having assembly relations with each other.

Here, the molding groove 11 is formed in the insert molding block 10 according to the injection molding conditions of the products having a relationship with each other, and constitute the same groove in a pair of multi-stage or different shape of the molding groove, respectively Or it may be configured in the same way.

In addition, the insert molding block 10 is formed with a gate hole 12 in communication with the forming groove (11). The forming grooves 11 are separately configured or connected to the cavity runner (R) and / or cavity gate (G) provided at the bottom of the plurality of forming grooves (11).

On the other hand, the cavity runner (R) is configured to be connected to the runner lock pin 33 having a length extending to the molded support block 20.

The molding support block 20 is configured to support the insert molding block 10.

The insert molding block 10 and the molding support block 20 are positioned on the supporting plate 203 included in the movable side mold part 200 to be linked to the lifting and lowering of the supporting plate 203. The insert molding block 10 is configured to be assembled or separated from the molding support block 20 while the lifting and lowering is performed by the guide block (not shown).

The runner plate 30 is formed in the heating block 104 provided between the first and second upper fixing plates 101 and 102, which are the fixed side mold part 100, to the insert molding block 10. When the resin is supplied for injection molding of the products (c1, c1 ', c2, c2', c3, c3 ', c4), the insert molding block 10 is maintained in a connected state. The runner plate 30 is separated from the insert molding block 10 when the injection molded products c1, c1 ', c2, c2', c3, c3 'and c4 are taken out. The puller 31 and the flow path 32 are formed, as well as a plurality of runner lock pins 33.

That is, the resin flowing through the sprue 31 and the flow path 32 is used for injection molding the products c1, c1 ', c2, c2', c3, c3 ', and c4 by the heating block 104. After heating to maintain a constant temperature, it is injected into the molding groove 11 of the insert molding block 10 through the flow path in the runner lock pin 33.

Here, the runner lock pin 33 is configured to penetrate the second upper fixing plate 102 and penetrate the stripper plate 40, and the length of the runner lock pin 33 is provided in the insert molding block 10. Corresponding to the forming groove 11 is formed to be the same or different.

The stripper plate 40 guides the resin supplied through the flow path 32 and the runner lock pin 33 of the runner plate 30 to the insert molding block 10, and the insert molding block 10. The injection molded product (c1, c1 ', c2, c2', c3, c3 ', c4) from the lower end of the runner plate 10 is configured to be coupled to be configured to be lifted. Therefore, the stripper plate 40 has a plurality of runners 41 and a plurality of gate pins 42 formed thereon.

That is, the stripper plate 40 is connected to the rod 51 of the operation unit 50 fixed to the second upper fixing plate 102, and configured to move up and down by the operation unit 50.

Here, the gate pin 42 is inserted into the gate hole 12 in communication with the forming cavity (11). The actuating section 50 is a hydraulic cylinder, but is not necessarily limited to this, and if the usual elements for raising and lowering the stripper plate 40 (e.g. motor type, ball cylinder, rack and pinion, etc.) Any one of the elements can be applied alternatively.

The gate pin 42 and / or the cavity gate G may be a known pin point gate, side gate, tunnel gate, direct gate, or fan gate. any one of a fan gate, an edge gate, a ring gate, a flash gate, a tab gate, a diaphragm gate, and a cashew gate This is to be applied to the stripper plate 40 according to the characteristics of the product (C) to be injection molded.

Meanwhile, the runner 41 has a through hole (not shown) through which the runner lock pin 33 can pass, similarly to a through hole formed in the stripper plate 40.

The injection mold apparatus according to the embodiment of the present invention having the above configuration will be described with reference to the accompanying drawings. First, as shown in FIG. 1, the product (c1, c1 ', c2, c2') in the injection mold apparatus. A movable side mold part 200 including a fixing plate 201, a leg part 202, and a backing plate 203 through an ejection guide pin 204 by driving the driving part to mold the parts c3, c3 'and c4. And elevate the mold to the stationary mold part 100.

Then, the insert molding block 10 and the molding support block 20 having the molding grooves 11 formed between the stationary mold part 100 and the movable mold part 200 are in close contact with each other. Maintains the closed state for injection molding of the products (c1, c1 ', c2, c2', c3, c3 ', c4).

Thereafter, in the closed state of the injection mold apparatus, the molten resin is supplied through the sprue 31 of the runner plate 30 positioned in the fixed side mold part 100.

At this time, the runner plate 30 is installed in the heating block 104, so that the resin supplied through the sprue 31 of the runner plate 30 is runner lock pin of the multi-stage through the flow path 32 ( 33 is heated to a constant temperature when the branch supply is made, the heated resin is runner 41 and the gate pin 42 formed in the stripper plate 40, the cavity runner (R) and / or cavity gate ( It is injected into the forming grooves 11 formed in the insert molding block 10 through G).

Here, the gate pin 42 and the cavity gate G are known pin point gates, side gates, tunnel gates, direct gates, and fan gates. any one of a fan gate, an edge gate, a ring gate, a flash gate, a tab gate, a diaphragm gate, and a cashew gate In this case, the insert molding block 10 having the gate hole 12 corresponding to the gate pin 42 applied as described above is used.

That is, insert molding in which the shape of the forming groove 11 and the shape of the gate hole 12 are changed according to the characteristics of the products (c1, c1 ', c2, c2', c3, c3 ', c4) to be injection molded. It is to make a block 10 and to apply it to the injection mold apparatus.

Accordingly, the injection mold apparatus according to the embodiment of the present invention, as described above, the runner 41 and the gate pin 42 of the stripper plate 40, and the products to be injection molded (c1, c1 ', c2, c2', By selectively injecting the molten resin simultaneously into the upper and lower ends of the forming groove 11 through the cavity runner R and / or the cavity gate G according to c3, c3 'and c4, they have a bonding relationship with each other. Products (c1, c1 ', c2, c2', c3, c3 ', c4) consisting of the parts can be injection molded at the same time through one injection mold apparatus.

On the other hand, when the injection molding of the products (c1, c1 ', c2, c2', c3, c3 ', c4) of the resin is solidified to form parts having a coupling relationship with each other, it is extracted from the injection mold apparatus.

To this end, first, when the ejection guide pin 204 formed in the movable side mold part 200 is returned to its original position by driving the driving unit, the fixing plate 201 is returned from the return movement of the ejection guide pin 204. In addition to the movable side mold part 200 including the leg part 202 and the support plate 203, the insert molding block 10 and the molding support block 20 are first lowered.

Then, as shown in Figure 2, the insert molding block 10 is separated from the stripper plate 40, the gate pin 42 of the stripper plate 40 is a gate hole formed in the insert molding block 10 The runner lock pin 33 extended from the runner plate 30 to the lower end of the insert molding block 10 in the runner plate 30 is separated from the cavity runner R.

Thereafter, as shown in FIG. 3, when the stripper plate 40 connected to the rod 51 of the operation unit 50 is moved downward through the operation unit 50, the stripper plate 40 may be moved. A gate pin 42 separates the injection molded products (c1, c1 ', c2, c2', c3, c3 ', c4) into the molding groove 11 in the insert molding block 10, the insert molding block ( 10) will be held.

Next, as shown in FIG. 4, when the eject guide pin 204 formed on the movable side mold part 200 is pulled to the original position through the driving of the driving unit, the eject guide pin 204 is moved. From the return movement of the < RTI ID = 0.0 >), < / RTI > the movable mold part 200 including the fixing plate 201, the leg portion 202, and the supporting plate 203, as well as the molding support block 20, are secondarily lowered. The products c1, c1 ', c2, c2', c3, c3 ', and c4 may be separated from the forming grooves 11 in the forming block 10 and placed on the forming support block 20.

Next, as shown in FIG. 5, when the plate support plate 206 and the pin 207 coupled thereto are raised through the plate 205, the plate runner R is placed on the molded support block 20. And products (C: c2, c2 ', c3, c3') to which the cavity gate (G) is connected are separated from the cavity runner (R) and the cavity gate (G), and all products injection-molded from an injection mold apparatus. (c1, c1 ', c2, c2', c3, c3 ', c4) are all more easily extracted by the mill pin 207, and at the time of injection molding the product while increasing the dimensional accuracy of the extracted product It reduces the waste of materials, freely adjusts the size of the runner, and provides flexible condition control and quality reproducibility. Reduce the quality deviation for It is to enable extrusion molding.

Here, when the plate supporting plate 206 is raised by the plate 205, the return spring 209 of the return pin 208 is compressed and the products c1, c1 ', c2, c2', c3, c3 ', c4. After the extraction is completed, the plate support plate 206 as well as the plate 205 and the pin 207 can be returned to their original position by the spring force of the return spring 209.

Although the technical idea of the injection mold apparatus of the present invention has been described with the accompanying drawings, this is illustrative of the best embodiment of the present invention and is not intended to limit the present invention.

Accordingly, the present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the invention as claimed in the claims. Of course, such changes are within the scope of the claims.

The injection mold apparatus of the present invention simultaneously improves the separation efficiency of the two-stage mold and the runner, while simultaneously satisfying the advantages of the two-stage mold and the three-stage mold, and simultaneously inject-molding products having a correlation with each other, the three-stage When mass-producing products through injection molding, which is an advantage of molds, the cycle time of injection molding can be shortened and the production efficiency of products can be increased, and injection molding of fusion and advanced products is possible.

Claims (10)

A fixed side mold part into which resin for injection molding of a product is injected, and a movable side mold part to be joined or separated from the fixed side mold part according to the driving of the driving part; In the conventional injection mold apparatus consisting of, An insert molding block having a plurality of forming grooves is formed between the fixed side mold portion and the movable side mold portion to simultaneously injection-moldle a plurality of products having assembly relations therebetween, and a molding support block supporting the insert molding block. Can be configured to be lowered, The fixed side mold portion; While forming a sprue and a flow path for supplying the resin for injection molding of the product to the insert molding block, the resin is supplied through the flow path to maintain a connection with the insert molding block when injection molding the product, and injection molding A runner plate having a plurality of runner lock pins separated from the insert molding block when the extracted product is taken out; And, Positioning and lowering is possible at the bottom of the runner plate, to guide the resin supplied through the flow path of the runner plate and the runner lock pin to the insert molding block, to separate the injection-molded product from the insert molding block A stripper plate having a plurality of runners and a plurality of gate pins; Injection mold apparatus, characterized in that for combining. The method of claim 1, wherein the fixed side mold portion, And a first and second top fixing plates clamped to the injection machine, a top plate coupled between the first and second top fixing plates, and a heating block located in the top plate to heat the resin. Injection mold apparatus. The method of claim 1, wherein the movable side mold portion, A fixing plate, a leg portion coupled to the fixing plate, a supporting plate supported by the leg portion, and the fixing plate, the leg portion and the supporting plate to form or separate from the fixed side mold portion when driving the driving portion. The ejection guide pin to be lowered, the plate and plate support plate which is provided in the space formed between the fixing plate and the leg portion and the support plate to be raised and lowered from the driving of the driving unit, and is coupled to the plate support plate and injection molded from the molding support block And a plurality of mill pins for extracting products, and a return pin for returning the mill plate and the plate support plate and the mill pin to their original positions using the spring force of the return spring. The method of claim 1, The runner lock pin constituting the multi-stage injection mold apparatus, characterized in that formed in the same or different lengths corresponding to the molding groove provided in the insert molding block. The method of claim 2, The stripper plate is an injection mold apparatus, characterized in that configured to be connected to the rod of the operating part fixed to the second upper fixing plate to be able to move up and down. The injection mold apparatus according to claim 5, wherein the driving unit and the operating unit are hydraulic cylinders. The method of claim 1, The insert molding block is formed with a gate hole communicating with the forming groove, the injection hole is characterized in that the gate pin formed in the stripper plate is inserted into the injection hole device. The method of claim 7, wherein The gate pin may be a pin point gate, a side gate, a tunnel gate, a direct gate, a fan gate, an edge gate, or a ring gate. An injection mold apparatus comprising one or more of a ring gate, a flash gate, a tab gate, a diaphragm gate, and a cashew gate. The method of claim 7, wherein Molding grooves formed in the insert molding block is formed separately from each other, or injection molding apparatus characterized in that a plurality of forming grooves connected to the cavity runner and / or cavity gate configuration. The method of claim 9, The gate hole is formed in the upper end of the forming groove, the cavity runner and the cavity gate is formed in the lower end of the molding groove, the injection mold apparatus.

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