Front rectangular latent gate of low-pressure covering cloth injection mold

Abstract

A front rectangular latent gate of a low-pressure cloth covering injection mold comprises a mold cavity plate and a mold core plate of the mold, a mold cavity is arranged between the mold cavity plate and the mold core plate, a rectangular insert is arranged in the mold core plate and comprises an insert A and an insert B. The adjacent side walls of the insert A and the insert B are each provided with a semi-semicircular latent runner. The front end of the latent runner is provided with a rectangular discharge port, the latent runner is communicated with the mold cavity through the rectangular discharge port from bottom to top, the front surface of the core plate is also provided with a glue inlet runner, one end of the glue inlet runner is communicated with the latent runner, and the other end of the glue inlet runner is communicated with a hot runner system of the mold. According to the scheme, glue is fed through the latent rectangular glue port, so that more materials are sprayed faster, a mold cavity is rapidly filled, the defect that the materials of a low-pressure injection mold are easy to cool and solidify is overcome, and very beneficial positive effects are achieved.

Description

Technical Field

[0001] The utility model relates to a low-pressure cloth injection mold with a front rectangular latent glue port, belonging to the field of injection molds. Background Art

[0002] When producing automobile interior plastic parts with cloth covering, low-pressure injection molds are mostly used for processing. At the same time, because the cloth is covered on the upper surface of the product, the glue port (glue feeding system) generally adopts an inverted structure, that is, the glue feeding system is installed on the core side of the mold, and glue is fed from the lower back of the product. In this way, the glue feeding system is very likely to interfere with the ejection structure (mainly the inclined ejector) of the mold, and also affects the arrangement of the cooling water channel of the core. Therefore, the core side structure of such molds is currently very complex and expensive, and the ejection structure (mainly the inclined ejector rod) is prone to bending and deformation, causing downtime for maintenance and affecting production efficiency. At the same time, the ejector plate needs to be driven by a cylinder to eject, which consumes a lot of energy. Summary of the invention

[0003] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a low-pressure cloth injection mold with a positive glue feeding system, a side latent rectangular glue inlet for glue feeding, a fast glue feeding speed, and a front rectangular latent glue inlet for glue feeding, which can optimize the side structure of the mold core.

[0004] The technical solution of the rectangular latent glue outlet on the front side of the low-pressure cloth injection mold of the utility model is: it comprises a cavity plate and a core plate of the mold, a mold cavity is arranged between the cavity plate and the core plate, a rectangular insert is arranged in the core plate, the rectangular insert comprises an insert A and an insert B, semi-semicircular latent flow channels are arranged on the adjacent side walls of the insert A and the insert B, a rectangular discharge port is arranged at the front end of the latent flow channel, the latent flow channel is connected to the mold cavity from bottom to top through the rectangular discharge port, a glue feed flow channel is also arranged on the front surface of the core plate, one end of the glue feed flow channel is connected to the latent flow channel, and the other end of the glue feed flow channel is connected to the hot runner system of the mold.

[0005] The utility model discloses a low-pressure cloth-covered injection mold with a front rectangular latent glue port. The mold is a low-pressure injection mold with a cloth-covered mold. The cloth-covered mold is laid on the front surface of the core plate, which interferes with the glue feed flow channel. Therefore, the conventional glue feed system adopts an inverted structure. The present invention adopts a front rectangular latent glue port structure. The main feature is that an insert A and an insert B are arranged in the core plate, and semi-circular latent flow channels are arranged on the adjacent side walls of the insert A and the insert B. A rectangular discharge port is arranged at the front end of the latent flow channel. The latent flow channel is connected to the mold cavity from bottom to top through the rectangular discharge port. The present invention discloses a low-pressure cloth-covered injection mold with a front rectangular latent glue port. The latent flow channel is connected to the mold cavity from bottom to top through the rectangular discharge port. Structure, the glue feeding system of the mold is positively installed, that is, the glue feeding system is installed on the cavity side of the mold. During injection molding, the molten plastic material is injected from the glue feeding system into the glue feeding channel, then flows into the latent channel, and then ejected from bottom to top through the rectangular discharge port to perform injection molding and fill the mold cavity. The material and the cover cloth are integrally formed to obtain a plastic part with a cover cloth, which solves the problem of cover cloth interference; at the same time, the structural design of the rectangular discharge port makes the material ejection faster and more, and the mold cavity is quickly filled, which overcomes the disadvantage that the material of the low-pressure injection mold is easy to cool and solidify, and has a very beneficial and positive effect.

[0006] The low-pressure cloth injection mold of the utility model has a rectangular latent glue port on the front, a T-shaped assembly strip is arranged on the insert A, and a T-shaped assembly slot is arranged on the insert B. The T-shaped assembly strip and the T-shaped assembly slot cooperate with each other, and the cooperation is reliable and the assembly is precise. An insert fixing strip is arranged on the core plate, and insert A and insert B are fixed on the insert fixing strip, which is convenient for installation. A fixing hole is arranged on the insert B, and the fixing hole is fixed to the insert fixing strip by screws, and is firmly fixed. There are two mold cavities, which are distributed on both sides of the cavity plate and the core plate on the left and right. There are at least three rectangular inserts and glue feed channels, which are evenly distributed on the inner edges of the two mold cavities. Since the mold of this scheme is a low-pressure mold, multiple glue feed channels can increase the speed of glue feeding into the mold cavity and the uniformity of glue feeding, prevent the material from cooling and solidifying and insufficient filling, and there are two mold cavities, that is, two products are produced at a time, and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the rectangular latent glue port structure on the front side of the low-pressure fabric injection mold of the utility model;

[0008] Figure 2 yes Figure 1 A partial enlarged view of point C;

[0009] Figure 3 It is a schematic diagram of a rectangular insert and a glue inlet flow channel arranged on a core plate of the utility model;

[0010] Figure 4 It is a schematic diagram of the assembly relationship between the insert A and the insert B of the utility model. Implementation

[0011] The utility model relates to a low-pressure cloth injection mold with a rectangular latent glue port on the front side. Figure 1 — Figure 4 As shown, the mold includes a cavity plate 1 and a core plate 2, a mold cavity 3 is arranged between the cavity plate and the core plate, a rectangular insert 01 is arranged in the core plate 2, and the rectangular insert 01 includes an insert A and an insert B, and semi-semicircular latent flow channels 5 are arranged on the adjacent side walls of the insert A and the insert B, a rectangular discharge port 6 is arranged at the front end of the latent flow channel 5, and the latent flow channel 5 is connected to the mold cavity 3 from bottom to top through the rectangular discharge port 6, and a glue feed channel 7 is also arranged on the front surface of the core plate 2, one end of the glue feed channel 7 is connected to the latent flow channel 5, and the other end of the glue feed channel 7 is connected to the hot runner system of the mold. The mold described in this scheme is a low-pressure injection mold with a cloth cover. The cloth cover is laid on the front surface of the core plate, which interferes with the glue inlet flow channel. Therefore, the conventional glue inlet system adopts an inverted structure. This scheme adopts a front rectangular latent glue outlet structure. The main feature is that an insert A and an insert B are arranged in the core plate 2, and a semi-circular latent flow channel 5 is arranged on each of the adjacent side walls of the insert A and the insert B. A rectangular discharge port 6 is arranged at the front end of the latent flow channel 5. The latent flow channel 5 is connected to the mold cavity 3 from bottom to top through the rectangular discharge port 6. With this structure, the glue inlet system of the mold The system is installed in a straight line, that is, the glue feeding system is installed on the mold cavity side of the mold. During injection molding, the molten plastic material is injected from the glue feeding system into the glue feeding channel 7, then flows into the latent channel 5, and then ejected from bottom to top through the rectangular discharge port 6 to perform injection molding and fill the mold cavity 3. The material and the cloth are integrally formed to obtain a plastic part 12 with a cloth, which solves the problem of cloth interference; at the same time, the structural design of the rectangular discharge port enables the material to be ejected faster and more, and the mold cavity is quickly filled, overcoming the disadvantage that the material of the low-pressure injection mold is easy to cool and solidify, and has a very beneficial positive effect. The insert A is provided with a T-shaped assembly strip 8, and the insert B is provided with a T-shaped assembly groove 9. The T-shaped assembly strip 8 and the T-shaped assembly groove 9 are matched, and the matching is reliable and the assembly is accurate. The core plate 2 is provided with an insert fixing strip 11, and the insert A and the insert B are fixed on the insert fixing strip 11, which is easy to install. The insert B is provided with a fixing hole 10, and the fixing hole 10 is fixed to the insert fixing strip 11 by screws, and is firmly fixed. There are two mold cavities 3, which are distributed on both sides of the cavity plate 1 and the core plate 2. There are at least three rectangular inserts and glue feed channels 7, which are evenly distributed on the inner edges of the two mold cavities 3. Since the mold of this scheme is a low-pressure mold, multiple glue feed channels can increase the speed and uniformity of glue feeding into the mold cavity, prevent material cooling and solidification and insufficient filling, and there are two mold cavities, that is, two products are produced at a time, with high production efficiency.

Claims

1. A low-pressure fabric injection mold with a rectangular latent glue port on the front, comprising a cavity plate (1) and a core plate (2) of the mold, with a mold cavity (3) arranged between the cavity plate and the core plate, characterized in that: A rectangular insert (01) is arranged in the core plate (2), and the rectangular insert (01) includes an insert A and an insert B. A semi-circular latent flow channel (5) is arranged on the adjacent side walls of the insert A and the insert B. A rectangular discharge port (6) is arranged at the front end of the latent flow channel (5). The latent flow channel (5) is connected to the mold cavity (3) from bottom to top through the rectangular discharge port (6). A glue feed channel (7) is also arranged on the front surface of the core plate (2). One end of the glue feed channel (7) is connected to the latent flow channel (5), and the other end of the glue feed channel (7) is connected to the hot runner system of the mold.

2. The low-pressure fabric injection mold front rectangular latent glue port as claimed in claim 1 is characterized in that The insert A is provided with a T-shaped assembly strip (8), and the insert B is provided with a T-shaped assembly groove (9), and the T-shaped assembly strip (8) matches the T-shaped assembly groove (9).

3. The low-pressure fabric injection mold front rectangular latent glue port as claimed in claim 1, characterized in that An insert fixing strip (11) is provided on the core plate (2), and the insert A and the insert B are fixed on the insert fixing strip (11).

4. The low-pressure fabric injection mold front rectangular latent glue port as claimed in claim 3, characterized in that The insert B is provided with a fixing hole (10), and the fixing hole (10) is fixed to the insert fixing strip (11) by means of screws.

5. The low-pressure fabric injection mold front rectangular latent glue port as claimed in claim 1, characterized in that There are two mold cavities (3), which are distributed on both sides of the cavity plate (1) and the core plate (2) on the left and right. There are at least three rectangular inserts and glue inlet channels (7), which are evenly distributed on the inner edges of the two mold cavities (3).

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