TW201622939A - Hydrolysis mold jen and injection molding method therefor - Google Patents

Abstract

A hydrolysis mold jen includes a baby and a flush rod. The flush rod has an end surface. The area of the end surface is about 3% to 50% of the total area of the hydrolysis mold jen. An injection molding method comprises: forming hydrolysis mold Jen; injection a product and the end surface of the flush rod not being covered; rinsing the hydrolysis mold Jen; rinsing the product. Therefore, the method can simple and low-cost to complete the complex interior design of the product.

Description

Hydrolyzed mold core and plastic injection molding method thereof

The present invention relates to an injection molding method and injection molding die; in particular, to a hydrolysis mold for a plastic injection molding operation and a hydrolysis mold injection molding method for a plastic injection molding operation.

When the internal complex design casting of metal products was carried out in the past, the most common processing method was dewaxing precision casting. The common dewaxing precision casting method mainly covers six steps: 1. wax is formed into a wax mold by injection; 2. wax module synthetic wax tree; 3. shell mold is formed; 4. dewaxing; 5. metal liquid is injected into the shell Solidification after mold; 6. Breaking the shell mold to obtain the casting blank. The appearance and size of the wax mold directly affects whether the shell mold can produce a suitable casting, and the efficiency of the wax mold production also affects the ability to cast a large amount. However, the process of wax molds is limited by metal materials, and there are many problems and challenges, such as filling imperfections, flow marks, dents and deformations, etc. These problems usually have to be repaired through secondary processing, resulting in additional production time and the costing payment.

In the past, some dewaxing methods have been tried in the field of plastics commonly used in injection molding. However, due to the large volume shrinkage of waxes, wax patterns are prone to shrinkage problems. The high temperature heated during dewaxing is easy to dissolve the plastic material that is incident on the glass, which is one of the problems that dewaxing is not easy to use in plastic injection. In addition, the wax material itself is also a poor conductor of heat, so the wax mold is prone to insufficient curing and surface dent defects, resulting in poor yield of plastic injection.

In order to solve the above problems, the inventor of the present invention finally proposed a plastic injection molding technology capable of producing a delicate internal structure at a low cost without a high-temperature dewaxing process through years of research and development experience.

So far, when the industry produces plastic injection products, it uses multiple injection and die-change techniques to make complex internal structures. The present invention uses a hydrolysis mold and its plastic injection molding method to produce complex plastic injection internal structures, thereby not only It can reduce process cost and manufacturing time, and has high production yield.

One embodiment of the structural aspect of the present invention is a hydrolyzed mold core for forming an injection product, the hydrolysis mold core comprising a hydrolysis body and at least one hydrolysis rinse portion. The hydrolysis body is used to shape the internal structure of the exit product. The hydrolysis and rinsing unit is integrally connected to the hydrolysis body and has an end surface, and the end surface is extended to be exposed without being covered by the injection product, and the area of the end surface is about 3% to 50% of the area of the hydrolysis body.

According to the foregoing embodiment, the present invention can utilize the hydrolyzed mold to inject and form a complex internal structure of the product, and then rapidly flush or spray water vapor to dissolve the hydrolysis mold core, and after the hydrolysis mold is completely hydrolyzed and rinsed. , injecting the complexity of the product The structure of the part has been completed and the cleaning work is completed at the same time, so that the hydrolyzed mold of the present invention can produce the injection-molded internal structure, and maintains a lower cost and a shorter production time.

The other embodiment of the hydrolysis mold core embodiment is as follows: the hydrolysis rinse portion of the hydrolysis mold core may be a rinse column, the rinse column is integrally coupled with the hydrolysis body and protrudes outwardly, and the end surface is located outside the rinse column, thereby It is possible to produce complex structures hidden in the injected product. It is worth mentioning that the aforementioned rinsing column may have a plurality of and uniformly distributed on the hydrolysis body. On the other hand, the hydrolysis rinsing portion of the hydrolysis mold can be a rinsing groove, and the rinsing groove is integrally formed on the hydrolysis body, and the end surface can be located at the bottom or the periphery of the rinsing groove. In addition, the injection product of the hydrolysis mold core may have a plurality of liquid discharge holes, and the liquid discharge holes are corresponding to the liquid discharge for rinsing and hydrolysis, so that the drainage hole design can accelerate the hydrolysis and rinsing process.

One embodiment of the method aspect of the present invention is a plastic injection molding method for hydrolyzing a mold core, and the present invention is used for injection molding a shot product. The plastic injection molding method of the hydrolysis mold comprises the steps of: forming a hydrolysis mold kernel; depositing a hydrolysis rinse portion on the hydrolysis mold core, and the hydrolysis rinse portion has an end surface; and injecting and forming the injection product adjacent to the hydrolysis mold core, and the end surface is exposed The product is not covered by the injection product; the water or steam is rinsed from the end face, so that the hydrolysis mold is completely hydrolyzed from the end face; and the product is washed out.

With the foregoing embodiments, the present invention can quickly produce an injection product having an internal complicated structure. Further embodiments of the foregoing embodiments of the present invention are described below. The plastic injection molding method of the aforementioned hydrolysis mold may include ultrasonically oscillating the hydrolysis mold core to accelerate the washing speed of water or steam. In addition, the plastic injection molding method of the hydrolysis mold can accelerate the hydrolysis of the mold core, and can also accelerate the washing speed of water or steam.

In particular, according to the hydrolyzed mold core and the plastic injection molding method thereof provided by the present invention, the present invention can form a complicated internal structure in the injection product at a lower cost and a shorter process time. It is more effective to clean up the internal structure of the injection product. It is indeed a new invention technology that can overcome the conventional difficulties.

100‧‧‧ Hydrolyzed mold kernel

101‧‧‧ Hydrolyzed ontology

102‧‧‧ Hydrolysis and washing department

103‧‧‧ Flushing the groove

104‧‧‧ end face

110‧‧‧Golf club head

111‧‧‧ openings

201-205‧‧‧Steps

300‧‧‧ Hydrolyzed mold

301‧‧‧ Hydrolyzed ontology

3011‧‧‧ first part

3012‧‧‧ second part

302‧‧‧ Hydrolysis and washing department

3021‧‧‧Exposed plane

3022‧‧‧Sweeping column

304‧‧‧ end face

310‧‧‧ hollow spherical injection products

400‧‧‧ Hydrolyzed mold

401‧‧‧ Hydrolyzed ontology

402‧‧‧ Hydrolysis and washing department

403‧‧‧ rinse groove

404‧‧‧ end face

410‧‧‧Hollow ring injection products

411‧‧‧Drain hole

W‧‧‧Water

[Fig. 1] is a schematic view showing the structure of a first embodiment of a hydrolyzed mold according to the present invention; [Fig. 2] illustrates the appearance of a product of a hydrolyzed mold in the first drawing; [Fig. 3] shows the hydrolysis according to the present invention. A schematic view showing the structure of the second embodiment of the mold; [Fig. 4] illustrates the appearance of the product of the hydrolyzed mold in the third drawing; [Fig. 5] is a schematic view showing the structure of the third embodiment of the hydrolyzed mold according to the present invention; Figure 6 is a flow chart showing the steps of the method for injecting a product of a hydrolyzed mold in accordance with the present invention; [Fig. 8] is a flow chart showing the steps of a method for injecting and molding a plastic mold according to the present invention; 2 is a schematic diagram of a process for hydrolyzing a mold core, and performing water or steam rinsing; [Fig. 9] is a schematic view showing a process of hydrolyzing a mold kernel according to Fig. 4 of the present invention, and performing water or steam rinsing; and [Fig. 10] is based on Fig. 6 is a schematic view showing the process of hydrolyzing the mold kernel and performing water or steam rinsing.

Referring to FIG. 1 and FIG. 2, the structure of the hydrolysis mold core 100 of the first embodiment of the present invention is the inner core of a golf club head 110. The inside of the golf club head 110 is used to fix a metal solid. Head. However, when the golf club head 110 is formed, the hydrolysis mold core 100 must be injection molded to form a precise internal space and an accurate opening 111. The hydrolysis mold core 100 includes a hydrolysis body 101 and at least one hydrolysis rinse. Part 102. The hydrolysis body 101 is used to shape the interior space of the golf club head 110. The center of the hydrolysis rinse unit 102 is a flushing groove 103, and the hydrolysis rinse unit 102 is integrally coupled with the hydrolysis body 101 and has an end surface 104. The surface, while the end face 104 extends outwardly in the opening 111 and is not covered by the golf club head 110, and the total area of all the end faces 104 is about 3% to 50% of the area of the hydrolyzed body 101.

2, and 4, the hydrolysis mold core 300 of the second embodiment of the present invention comprises a hydrolysis body 301 and a plurality of hydrolysis rinse portions 302. The hydrolysis body 301 adopts a first member 3011 and a second portion. The member 3012 is combined, and a plurality of hydrolysis rinse portions 302 are provided on each of the first member 3011 and the second member 3012. There are two types of the hydrolysis rinse unit 302. One form of the hydrolysis rinse unit 302 is an exposed plane 3021, and another form of the hydrolysis rinse unit 302 is a columnar outwardly extending wash column 3022. The exposed plane 3021 is directly opened for hydrolysis. The surface of the body 301, and the rinsing column 3022 is integrally joined to the hydrolysis body 301 and protrudes outwardly. The end surface 304 is located at the exposed end of the rinsing column 3022, whereby the hydrolysis dies 300 can be produced and hidden in the hollow spherical injection product 310. Complex structure. Spherical injection After the product 310 is emitted, the total exposed area of all the end faces 304 is about 10% to 30% of the area of the hydrolysis body 301.

In addition, in the third embodiment, referring to FIG. 5 and FIG. 6, the hydrolysis mold 400 of the third embodiment of the present invention comprises a hydrolysis body 401 and a plurality of hydrolysis rinse portions 402. The hydrolysis body 401 has a ring shape. A plurality of hydrolysis rinse portions 402 are respectively formed on the hydrolysis body 401. The hydrolysis rinsing portion 402 is in the form of a rinsing groove 403. The rinsing groove 403 is integrally formed on the hydrolysis body 401, and the end surface 404 is located at the bottom or the periphery of each rinsing groove 403. The hydrolysis of the mold core 400 thereby produces a complex structure that is concealed within the hollow annular injection product 410. After the hollow annular injection product 410 is ejected, the hollow annular injection product 410 of the hydrolysis mold core 400 may further have a plurality of liquid discharge holes 411, and the liquid discharge holes 411 correspond to the liquid discharge of the hydrolysis body 401 for flushing and hydrolysis. Therefore, the design of the drain hole 411 can accelerate the hydrolysis and rinsing process. In addition, the total exposed area of all the end faces 404 is about 3% to 10% of the area of the hydrolysis body 401.

Referring to Fig. 7, Fig. 2, and Fig. 8 for the method aspect of the present invention, the steps of the present invention and the hydrolysis mold core 100 of the first embodiment will be described later. The present invention is a plastic injection molding method for hydrolyzing mold cores, which is used to project a golf club head 110 in this embodiment. The plastic injection molding method of the hydrolysis mold comprises the following steps.

Step 201, forming a hydrolysis mold core 100; the hydrolysis mold core 100 comprises a hydrolysis body 101 and at least one hydrolysis rinse portion 102. The hydrolysis body 101 is used to shape the interior space of the golf club head 110.

Step 202, a hydrolysis rinsing portion 102 is reserved on the hydrolysis mold core 100, and the hydrolysis rinsing portion 102 has an end surface 104; the center of the hydrolysis rinsing portion 102 is a flushing concave portion. The groove 103 and the end surface 104 of the hydrolysis rinse portion 102 cover the concave surface of the rinse groove 103 and other exposed surfaces of the hydrolysis rinse portion 102.

Step 203, the golf club head 110 is formed adjacent to the hydrolysis mold core 100, and the end surface 104 is exposed to the golf club head 110 without being covered by the golf club head 110; and the front end surface 104 is extended to the opening 111 without being golfed. The club head 110 is covered, and the total area of all the end faces 104 is about 10% to 30% of the area of the hydrolysis body 101.

In step 204, water W or vapor (not shown) is rinsed from end face 104 such that hydrolysis of mold core 100 is completely hydrolyzed from end face 104. In the process of performing the water W rinsing and hydrolyzing the mold core 100, the ultrasonic oscillating step and the step of increasing the temperature of the water W may be additionally added to accelerate the decomposition of the hydrolysis mold core 100.

In step 205, the golf club head 110 is flushed; the hydrolysis mold core 100 is rinsed clean and the internal structure of the golf club head 110 is cleaned together.

Referring to Fig. 9, in the second embodiment of the present invention, the water-washing process utilizes the end face 304 to rinse the hydrolysis mold core 300 with water W first, whereby the hydrolysis of the mold core 300 can produce a complex hidden in the hollow spherical injection product 310. structure. Referring to Fig. 10, in the third embodiment of the present invention, the water-washing end face 404 is hydrolyzed by water, and the hydrolyzed mold core 400 is washed with water W first, and the water-discharging hole 411 is used to accelerate the hydrolysis and rinsing cycle speed.

The hydrolysis mold core and the plastic injection molding method thereof can be applied to various plastic injection molding products, but it is not limited to the application of hollow injection products, and can also be applied to the process of various complicated injection plastic products. The present invention has been disclosed in the above embodiments, and is not intended to limit the present invention. Any one skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application attached.

201~205‧‧‧Steps

Claims (10)

A hydrolysis mold for forming an injection product comprising: a hydrolysis body for shaping an internal structure of the injection product; and at least one hydrolysis rinse portion integrally coupled to the hydrolysis body and having an end surface, The end face is exposed and not covered by the injection product, and the area of the end face accounts for about 3 to 50% of the area of the hydrolysis body. The hydrolysis mold core according to claim 1, wherein the hydrolysis rinse portion is a rinse column, and the rinse column is integrally coupled to the hydrolysis body and protrudes outwardly, the end surface being located outside the rinse column. The hydrolysis mold of claim 1, wherein the hydrolysis rinse portion is a rinse groove, and the rinse groove is integrally formed on the hydrolysis body, and the end surface is located at the bottom or the periphery of the rinse groove. The hydrolysis mold core according to claim 2, wherein there are a plurality of the rinse columns, and the rinse columns are equally distributed on the hydrolysis body. The hydrolysis mold of claim 4, wherein the injection product further has a plurality of drainage holes, and the drainage holes are corresponding to the hydrolysis body. The hydrolysis mold core according to claim 1, wherein the area of the end face accounts for about 10% to 30% of the area of the hydrolysis body. The hydrolysis mold core according to claim 1, wherein the area of the end face accounts for about 3% to 10% of the area of the hydrolysis body. A plastic injection molding method for hydrolyzing a mold core for injecting and forming an injection product, comprising the steps of: forming a hydrolysis mold core; leaving a hydrolysis rinse portion on the hydrolysis mold core, and the hydrolysis rinse portion has an end surface; Ejecting the injection product adjacent to the hydrolysis mold, and the end surface is exposed to the injection product without being covered by the injection product; water or steam is flushed from the end surface, so that the hydrolysis mold is completely hydrolyzed from the end surface; Flush the shot product. The plastic injection molding method for hydrolyzing molds according to claim 8 of the patent application, further comprising the steps of: ultrasonically oscillating the hydrolysis mold to accelerate the washing speed of water or steam. The plastic injection molding method for hydrolyzing molds according to claim 8 of the patent application, further comprising the step of: heating the hydrolysis mold to accelerate the washing speed of water or steam.