CN209289668U - One-piece multi-terminal embedded injection mold - Google Patents

Abstract

The utility model discloses an integral multi-terminal embedded injection mold, which includes a front mold and a rear mold. The front mold includes a hot runner system, a positioning ring, a front mold bottom plate, a front mold square iron, and a front mold upper/lower mold. Ejector plate, front mold ejection cylinder, front template, front mold core and guide post, the rear mold includes ejector pin, rear mold core, guide sleeve, rear template, rear mold square iron, rear mold upper/lower ejector plate and rear Mold base plate. Through the above, the integrated multi-terminal embedded injection mold of the present invention is suitable for plastic injection molding molds containing multi-terminal metal embedded parts, and can solve the problem of difficult positioning of multi-terminal metal embedded parts, slow embedding of iron parts, and poor quality of finished products. Problems such as low pass rate and easy crushing of molds, etc., maintain the stability of injection molding, improve the production yield of products, save molding costs, improve production efficiency, effectively optimize mold structure, improve injection molding cycle and output, Increase product competitiveness.

Description

One-piece multi-terminal embedded injection mold

technical field

The utility model relates to the technical field of moulds, in particular to an integral multi-terminal embedded injection mold.

Background technique

Injection molding is the most common molding method in the production of thermoplastic products. The mold used is a plastic injection mold, referred to as an injection mold. The processing equipment corresponding to the injection mold is a plastic injection machine (also known as an injection molding machine). Injection molding is to heat and melt plastic (usually pellets) in the barrel of the injection molding machine. When it is in a flowing state, under the pressure of the plunger or screw, the molten plastic is compressed and moved forward, and then passes through the front section of the barrel. The nozzle is injected into the closed mold with low temperature at a very fast speed, formed in the cavity, cooled, solidified, and the product is obtained after demoulding. Injection molding is characterized by fast molding speed, short molding cycle, easy size control, and plastic products with complex shape, precise size and inserts can be formed at one time. It has strong adaptability to various plastics, high production efficiency, stable product quality, and is easy to realize automatic production. Plastic products produced by injection molding process are very extensive. From daily necessities to various complex machinery, electrical appliances, and vehicle parts, etc., injection molds can be used to form them. It is the most widely used processing method in the production of plastic products.

Plastic products with metal embedded parts are relatively common in industrial applications. How to ensure reliable, efficient positioning and stable production of metal embedded parts has always been a difficult point in the design of this type of mold. Accurate and stable positioning is to ensure the manufacturing accuracy of plastic parts, and efficient positioning is to improve the production efficiency of injection molding. When designing the mold structure, it is necessary to make the metal embedded parts easy to achieve accurate and reliable positioning, and the metal embedded parts should not be loose or installed incorrectly, otherwise the mold or metal embedded parts will be damaged when the mold is closed. Since metal embedded parts are usually installed manually, it is generally difficult to achieve automatic installation.

Utility model content

The technical problem mainly solved by the utility model is to provide an integrated multi-terminal embedded injection mold, which is suitable for plastic injection molding molds containing multi-terminal metal embedded parts, and can solve the problem of difficult positioning of multi-terminal metal embedded parts and iron parts embedded parts. Slow input, low qualified rate of finished products, easy to crush the mold and other problems, maintain the stability of injection molding, improve the production yield of products, save molding costs, improve production efficiency, can effectively optimize the mold structure, improve injection molding Molding cycle and output increase the competitiveness of products.

In order to solve the above-mentioned technical problems, a technical solution adopted by the utility model is: an integrated multi-terminal embedded injection mold is provided, which includes a front mold and a rear mold. The front mold includes a hot runner system, a positioning ring, a front Mold bottom plate, front mold square iron, front mold upper/lower thimble plate, front mold ejection cylinder, front template, front mold core and guide post, the rear mold includes thimble, rear mold core, guide sleeve, rear template, rear mold mold square iron, rear mold upper/lower thimble plate and rear mold bottom plate, the front template is arranged on the lower end of the front mold bottom plate through the front mold square iron, and the front mold upper/lower ejector plate is arranged on the front mold square iron The interior is connected with the front mold ejection cylinder, the front mold ejection cylinders are respectively arranged on both sides of the front template, the front mold core is arranged at the middle position of the front template bottom, and the guide posts are respectively Set on the four corners of the bottom of the front formwork, the positioning ring is set in the middle of the top of the front formwork bottom plate, and the hot runner system is vertically arranged on the top of the front formwork bottom plate through the positioning ring and extends down to the front In the mold core, the back template is set on the upper end of the back mold bottom plate through the back mold square iron, and the rear mold upper/lower ejector plate is arranged in the back mold square iron and connected with the back template, and the thimble respectively arranged on the rear template and connected with the upper/lower ejector plate of the rear template, the rear mold core is arranged in the middle of the upper end of the rear template and corresponds to the position of the front mold core, and the guide sleeves are respectively arranged on the rear The four corners in the template correspond to the positions of the guide pillars, and the front mold and the rear mold are connected together through matching guide pillars and guide sleeves.

In a preferred embodiment of the present invention, the hot runner system adopts a one-point needle valve hot runner system.

In a preferred embodiment of the present invention, the number of the front mold square irons and the rear mold square irons is 2, which are respectively vertically arranged on the two sides of the bottom of the front mold bottom plate and the two sides of the top of the rear mold bottom plate. side.

In a preferred embodiment of the present invention, the front mold is also provided with a shovel and a slanted guide column, and the shovel and the slanted guide column are arranged at the bottom of the front formwork and on both sides of the front mold core side.

In a preferred embodiment of the present invention, the rear mold is further provided with sliders, and the sliders are respectively arranged on both sides of the rear mold core and connected with the shovel and the inclined guide post.

In a preferred embodiment of the present invention, a plurality of inserts are arranged in the front mold core and the rear mold core.

In a preferred embodiment of the present invention, an integrated multi-terminal embedded part is placed in the rear mold core.

In a preferred embodiment of the present invention, the integrated multi-terminal embedded part adopts six terminal pins connected by ribs.

The beneficial effects of the utility model are: the integrated multi-terminal embedded injection mold of the utility model is suitable for plastic injection molding molds containing multi-terminal metal embedded parts, and can solve the problem of difficult positioning of multi-terminal metal embedded parts and the embedding of iron parts. Slow input, low qualified rate of finished products, easy to crush the mold and other problems, maintain the stability of injection molding, improve the production yield of products, save molding costs, improve production efficiency, can effectively optimize the mold structure, improve injection molding Molding cycle and output increase the competitiveness of products.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, wherein:

Fig. 1 is a structural schematic diagram of a preferred embodiment of the utility model integrated multi-terminal embedded injection mold;

Fig. 2 is a structural schematic diagram of an integrated multi-terminal embedded part;

The marks in the drawings are: 1. Front mold, 2. Rear mold, 3. Integrated multi-terminal embedded part, 101. Hot runner system, 102. Locating ring, 103. Front mold bottom plate, 104. Front mold square iron , 105, front mold upper/lower ejector plate, 106, front mold ejection cylinder, 107, front template, 108, guide post, 109, shovel, 110, inclined guide post, 201, thimble, 202, rear mold core, 203, guide sleeve, 204, back template, 205, back mold square iron, 206, upper/lower thimble plate of back mold, 207, back mold bottom plate, 208, slide block.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the utility model embodiment comprises:

An integrated multi-terminal embedded injection mold, including a front mold 1 and a rear mold 2, the front mold 1 includes a hot runner system 101, a positioning ring 102, a front mold bottom plate 103, a front mold square iron 104, and a front mold upper /Lower thimble plate 105, front mold ejection cylinder 106, front template 107, front mold core (not shown) and guide post 108, said rear mold 2 includes thimble 201, rear mold core 202, guide sleeve 203, rear Template 204, back mold square iron 205, back mold upper/lower thimble plate 206 and back mold bottom plate 207, described front template 107 is arranged on the lower end of front mold bottom plate 103 by front mold square iron 104, on the described front mold The lower thimble plate 105 is set inside the front mold square iron 104 and is connected with the front mold ejection cylinder 106. The front mold ejection cylinder 106 is respectively arranged on the two sides of the front template 107. The front mold core It is arranged at the middle position of the bottom of the front template 107, and the guide posts 108 are respectively arranged on the four corners of the bottom of the front template 107. The channel system 101 is vertically arranged on the top of the front mold bottom plate 103 through the positioning ring 102 and extends downwards into the front mold core. The rear template 204 is arranged on the upper end of the rear mold bottom plate 207 through the rear mold square iron 205. The upper/lower thimble plate 206 of the back mold is arranged in the back mold square iron 205 and connected with the back template 204, and the described thimbles 201 are respectively arranged on the back mold 204 and connected with the back mold upper/lower thimble plate 206, so The aforementioned rear mold core 202 is arranged in the middle of the upper end of the rear template 204 and corresponds to the position of the front mold core, and the described guide sleeves 203 are respectively arranged on the four corners of the rear template 204 and correspond to the positions of the guide pillars 108. Correspondingly, the front mold 1 and the rear mold 2 are connected together through the matched guide post 108 and guide sleeve 203 .

In the above, the hot runner system 101 adopts a one-point needle valve hot runner system. The plastic in the hot runner system 101 is always in a molten state, so there will be no pouring system coagulation in the production process. The hot runner mold has no pressure, temperature and time loss of the melt in the runner, so it not only improves the molding quality of the mold, but also shortens the molding cycle of the mold. It is a major innovation in the injection molding system technology.

Wherein, the number of the front mold square iron 104 and the rear mold square iron 205 is 2, which are respectively vertically arranged on the two sides of the front mold bottom plate 103 bottom and the two sides of the rear mold bottom plate 207 top.

Further, the front mold 1 is also provided with a shovel 109 and a slanted guide post 110, and the shovel 109 and the slanted guide 110 post are arranged at the bottom of the front template 107 and located on both sides of the front mold core. The rear mold 2 is also provided with sliders 208 , and the sliders 208 are respectively arranged on both sides of the rear mold core 202 and connected with the shovel 109 and the inclined guide post 110 .

Still further, a plurality of inserts (not shown in the figure) are arranged in the front mold core and the rear mold core 202, so as to facilitate the exhaust during mold processing and injection molding. In this embodiment, the integrated multi-terminal embedded part 3 is placed in the rear mold core 202 . As shown in FIG. 2 , the integrated multi-terminal embedded part 3 adopts six terminal pins connected by ribs.

The slide block 208 facilitates the demoulding of the undercut of the product. In addition, in order to ensure that the terminal pins of the integrated multi-terminal embedding part 3 are inserted into the jacks on the slider 208, a slider reset mechanism is designed. When the mold is opened, the slider 208 moves laterally to complete the core pulling of the mold under the movement of the inclined guide post 110 . Take out the product, then install the integrated multi-terminal embedded part 3 in the rear mold core 202, and push the slider 208 back to ensure that the terminals of the integrated multi-terminal embedded part 3 are inserted into the jacks on the slider 208. The shovel 109 on the front mold 1 compresses the slide block 208 during mold closing, so as to prevent the slide block 208 from retreating under the injection molding pressure.

In order to facilitate the accurate positioning of the six terminal pins of the integrated multi-terminal embedded part 3 in the mold and easy installation, the six terminal stamping parts are first made into one, and there are ribs in the middle to ensure that the positions of the terminals are accurate. . Then the six terminal pins are used as embedded parts in another pair of injection molds for injection molding and sealing, and the ribs connected between the terminals are punched off when the mold is closed. In this way, the mutual positions of the terminals are still consistent, but the terminals are now connected by injection molded plastic parts (because the terminals on the final product cannot be connected by iron parts, otherwise it will cause a short circuit). Finally, put the injection-molded plastic part with six terminals as an embedded part into the mold for secondary injection molding. The broken parts of the connecting ribs between the terminals are filled with rubber partitions during the secondary injection molding, fundamentally The insulation between each terminal is guaranteed; because the six terminal pins have been injection molded as one before, they can be directly put into the mold during secondary injection molding, which can be quickly installed and ensure the accurate positioning of each terminal, thus improving labor. Productivity is also reduced, and the product defect rate caused by poor terminal installation and positioning is also reduced.

The shape of the product is complicated. In order to prevent the product from sticking to the front mold 1 when the mold is opened, an ejection system is also set on the front mold 1. out.

Working principle: Put the integrated multi-terminal embedded part 3 into the rear mold core 202, push the slider 208 to reset and ensure that the terminal pins are inserted into the jacks on the slider 208. The injection molding machine closes the mold. At this time, the shovel 109 on the front mold 1 presses the slider 208 tightly to prevent the slider 208 from retreating under the injection pressure; Open the valve to start injection and pressure maintenance. After the pressure maintenance is completed, the needle valve is closed and the product is cooled to complete the entire injection molding process; the mold is opened, and the front mold ejection cylinder 106 on the front mold 1 drives the upper/lower ejector plate 105 and ejector pin of the front mold. , to eject the product from the front mold 1 at the same speed as the mold opening to ensure that the product stays on the side of the rear mold; at the same time, the slider 208 moves laterally under the sway of the inclined guide column 110 to complete the mold core-pulling action; after that, the rear mold The upper/lower ejector plate 206 and the ejector pin 201 push out the product and pick up the product under the action of the ejector pin of the injection molding machine; the ejector pin of the injection molding machine is retracted, and the upper/lower ejector plate 206 and the ejector pin 201 of the rear mold are reset. At this point, a working cycle is completed.

Using a one-point needle valve hot runner, the gate is directly hit on the product. After the injection molding is completed, the needle valve pushes forward to close the gate. The gate mark on the product is beautiful and there is no chip, which saves plastic raw materials and does not need to separate the product and the chip. The front mold is equipped with an oil cylinder ejection system to avoid the problem of product sticking to the front mold when the mold is opened; multiple terminals are embedded in one piece during injection molding production, which improves production efficiency and reduces the risk of defective products and crushing the mold. At the same time, product quality has been improved.

In summary, the integrated multi-terminal embedded injection mold of the present invention is suitable for plastic injection molding molds containing multi-terminal metal embedded parts, and can solve the difficulty in positioning multi-terminal metal embedded parts and the slow embedding of iron parts. , low qualified rate of finished products, easy to crush the mold and other problems, maintain the stability of injection molding, improve the production yield of products, save molding costs, improve production efficiency, can effectively optimize the mold structure, improve the injection molding cycle and output and increase product competitiveness.

The above descriptions are only examples of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the utility model description, or directly or indirectly used in other related technologies Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (8)

1. a kind of integral type multi-terminal is embedded to injection mold, which is characterized in that including preceding mould and rear mold, the preceding mould includes heat Flow passage system, locating ring, preceding baffle plate, preceding mould square iron, preceding mould up/down ejector retainner plate, preceding mould ejection cylinder, front template, front cavity And guide post, the rear mold include thimble, rear cavity, guide sleeve, rear pattern plate, rear mold square iron, rear mold up/down ejector retainner plate and rear mold bottom The lower end of preceding baffle plate is arranged in by preceding mould square iron for plate, the front template, and the preceding mould up/down ejector retainner plate is arranged preceding It is connected inside mould square iron and with preceding mould ejection cylinder, the preceding mould ejection cylinder is separately positioned on the two sides of front template, The middle position of front template bottom is arranged in the front cavity, and the guide post is separately positioned on four angles of front template bottom On, the middle position at the top of preceding baffle plate is arranged in the locating ring, and the hot runner system is vertically set by locating ring It sets the top in preceding baffle plate and extends downward into front cavity, the rear pattern plate is arranged by rear mold square iron in rear baffle plate Upper end, the rear mold up/down ejector retainner plate is arranged in rear mold square iron and is connected with rear pattern plate, and the thimble is set respectively It sets in rear pattern plate and is connected with rear mold up/down ejector retainner plate, the middle position of rear pattern plate upper end is arranged in simultaneously in the rear cavity Corresponding with the position of front cavity, the guide sleeve is separately positioned on four angles in rear pattern plate and opposite with the position of guide post It answers, the preceding mould and rear mold pass through the guide pillars and bushes matched and link together.

2. integral type multi-terminal according to claim 1 is embedded to injection mold, which is characterized in that the hot runner system Using some needle valve type hot runner systems.

3. integral type multi-terminal according to claim 1 is embedded to injection mold, which is characterized in that the preceding mould square iron and The quantity of rear mold square iron is 2, the two sides of baffle plate bottom and the two sides at the top of rear mold bottom plate before being vertically provided at respectively Side.

4. integral type multi-terminal according to claim 1 is embedded to injection mold, which is characterized in that also set on the preceding mould It is equipped with shovel and inclined guide pillar, the shovel and inclined guide pillar are arranged in the bottom of front template and are located at the two sides of front cavity.

5. integral type multi-terminal according to claim 4 is embedded to injection mold, which is characterized in that also set in the rear mold It is equipped with sliding block, the sliding block is separately positioned on the two sides of rear cavity and is cooperatively connected with shovel and inclined guide pillar.

6. integral type multi-terminal according to claim 1 is embedded to injection mold, which is characterized in that the front cavity is with after Multiple mold inserts are provided in mode.

7. integral type multi-terminal according to claim 1 is embedded to injection mold, which is characterized in that put in the rear cavity Set integral type multi-terminal inlet part.

8. integral type multi-terminal according to claim 7 is embedded to injection mold, which is characterized in that the integral type multiterminal Sub- inlet part uses six terminal needle insertings of muscle position connection.