Die core water gap cutting structure

Abstract

The utility model discloses a die core water gap cutting structure which comprises a die core body, a die core is arranged on the die core body, a gap is formed between the side wall of the die core and the die core body, the gap between the top face of the die core and the side portion of the die core forms a die cavity, the die core body is further provided with a glue inlet runner, and the glue inlet runner is located on the side portion of the die cavity. A glue inlet nozzle is arranged at the starting end of the glue inlet runner, a glue inlet is formed between the mold cavity and the glue inlet runner, and the glue inlet inclines downwards along the glue inlet runner to be arranged in the mold cavity. According to the water gap cutting structure of the mold core, when the mold is opened, the ejector pin simultaneously ejects a product formed in the mold cavity and the water gap formed in the glue inlet runner, and when the product is ejected, the product gap and the water gap can be directly cut off through the glue inlet, so that manual shearing is not needed, the production efficiency of the product is improved, and meanwhile, the production cost is reduced. Due to the fact that the glue inlet is obliquely arranged, when the water gap is cut off and separated from a product, the cut-off position of the water gap is smooth and consistent, and therefore the product forming quality and the appearance requirement are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and particularly relates to a mold core gate cutting structure. Background Art

[0002] Generally, a mold is divided into two parts, which are divided into a moving mold and a fixed mold according to the motion state, and into a concave mold and a convex mold according to the shape. A pouring runner is often arranged at the fixed mold to introduce liquid plastic into the cavity. After cooling, the plastic remaining on the pouring runner (commonly known as the gate) is connected to the product formed in the cavity. After the product is cooled, it is often necessary to cut off the remaining gates one by one to obtain the finished product.

[0003] In the prior art, when removing the remaining gates, generally, tools are borrowed manually to separate the product from the gate. Since additional workers are required to cut the gate, the production cost of the product is increased, and the production efficiency is low. At the same time, as the workers are variable factors, the cut-off at the gate shear of the product will also be uneven, and the quality and appearance requirements of the product cannot be guaranteed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a mold core gate cutting structure that can improve the production efficiency and has a flat cut-off.

[0005] To solve the above technical problems, the utility model can adopt the following technical solutions:

[0006] A mold core gate cutting structure includes a mold core body, a mold core is arranged on the mold core body, there is a gap between the side wall of the mold core and the mold core body, and the gaps on the top surface and side of the mold core form a mold cavity. An injection runner is also arranged on the mold core body, the injection runner is located on the side of the mold cavity, the starting end of the injection runner has an injection nozzle, and an injection port is opened between the mold cavity and the injection runner, and the injection port is inclined downward along the injection runner to the mold cavity.

[0007] In one embodiment, the inclination angle of the injection port is 35° - 50°.

[0008] In one embodiment, the inclination angle of the injection port is 45°.

[0009] In one embodiment, both the mold core and the injection runner have ejector pin holes, and the ejector pin hole of the injection runner is matched with the injection port.

[0010] In one embodiment, the top of the mold core is provided with a first boss and a second boss protruding upward.

[0011] In one embodiment, four groups of mold cores are arranged side by side on the mold core body, and each of the four groups of mold cores has a mold cavity, and the four mold cavities are respectively communicated with the injection runner through injection ports.

[0012] In one embodiment, the glue inlet nozzle is located in the middle of the mold body, and two groups of mold cores are distributed on both sides of the glue inlet nozzle. Beneficial Effects

[0013] The utility model discloses a mold core cutting water outlet structure. During injection molding production, the glue enters from the glue inlet nozzle and flows along the glue inlet flow channel, and then flows into the mold cavity through the inclined glue inlet. After cooling and molding, the mold is opened. After the mold is opened, the product in the mold cavity and the water outlet in the glue inlet flow channel are ejected simultaneously by the ejector pin. During the ejection, the product outlet and the water outlet can be directly cut off through the glue inlet, so that there is no need for manual shearing, thereby improving the production efficiency of the product. At the same time, because the glue inlet is inclined, the water outlet can be cut off and separated from the product at a smooth and consistent cutting position, thereby ensuring the quality and appearance requirements of the product molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the mold core cutting nozzle structure of the utility model;

[0015] Figure 2 It is a top view of the mold core cutting nozzle structure of the utility model;

[0016] Figure 3 It is a cross-sectional view of the mold core cutting nozzle structure of the utility model.

[0017] Description of Reference Numerals

[0018] 100, mold body; 110, mold core; 111, first protrusion; 112, second protrusion; 120, mold cavity; 130, glue inlet channel; 140, glue inlet nozzle; 150, glue inlet port; 160, ejector pin hole. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] Please refer to Figures 1 to 3 , a mold core gate-cutting structure, including a mold core body 100, a mold core 110 is arranged on the mold core body, there is a gap between the side wall of the mold core 110 and the mold core body 100, and the gaps on the top surface and side of the mold core 110 form a mold cavity 120. An injection runner 130 is also arranged on the mold core body 100. The injection runner 130 is located on the side of the mold cavity 120. The starting end of the injection runner 130 has an injection nozzle 140. An injection port 150 is opened between the mold cavity 120 and the injection runner 130. The injection port 150 is inclined downward along the injection runner 130 towards the mold cavity 120.

[0023] Specifically, in this embodiment, during injection molding, the mold core body 100 is installed on the mold, and injection is carried out through the injection nozzle 140. The rubber material will flow along the injection runner 130, and the flowing rubber material will flow into the mold cavity 120 from the inclined injection port 150 to realize the injection molding of the product. After the product in the mold cavity 120 is cooled and formed, the mold can be opened. After opening the mold, the ejector pin will eject the product formed in the mold cavity 120 and the gate formed in the injection runner 130 at the same time. During ejection, the product and the gate can be directly cut off through the injection port 150, so there is no need to cut manually, thereby improving the production efficiency of injection-molded products. At the same time, because the injection port 150 is inclined, the cutting part can be flat and consistent when the gate and the product are cut and separated, thus ensuring the quality and appearance requirements during product molding.

[0024] In addition, to better ensure the flatness of the product at the gate cutting position, in this embodiment, the inclination angle of the gate 150 is 35° - 50°. When the inclination angle of the gate 150 is less than or greater than this range, it is impossible to ensure the cutting position of the gate and the product. When the product and the gate are cut and separated, there will still be some gate residues on the product, which need to be manually polished. Therefore, by setting the inclination angle of the gate 150 to 35° - 50°, among which, setting the inclination angle of the gate 150 to 45° is the best, so as to ensure the flatness of the cutting position of the product and the gate, make the cutting surface of the product flat and consistent, thereby improving the quality of the product during molding and meeting the appearance requirements of the product.

[0025] Please refer to Figure 1 or Figure 2 , since after the product is cooled and molded, the formed product in the mold cavity 120 and the gate formed by the feed runner 130 need to be ejected by the ejector pins. Therefore, in this embodiment, the ejector pin holes 160 are provided in both the mold core 110 and the feed runner 130, and the ejector pins are inserted into the ejector pin holes 160. And in order to smoothly eject the gate and ensure the flatness of the cutting position of the gate and the product during ejection, therefore, the ejector pin hole 160 at the feed runner 130 is matched with the gate 150. Thus, the inclined gate formed by the gate 150 can be ejected outward by the ejector pin, avoiding the gate from breaking directly at the ejector pin hole 160 of the feed runner 130.

[0026] Finally, in this embodiment, in order to improve the injection efficiency of the product, four sets of mold cores 110 are arranged side by side on the mold body 100, and the four sets of mold cores 110 all have mold cavities 120. The four mold cavities 120 are respectively connected to the feed runner 130 through the gates 150, and the nozzle 140 is located in the middle of the mold body 100, and two sets of mold cores 110 are distributed on both sides of the nozzle 140. Four products can be injection molded simultaneously through the four sets of mold cores 110, thereby improving the injection efficiency of the product. At the same time, two sets of mold cores 110 are distributed on both sides of the nozzle 140, which can ensure that the rubber material flows evenly to both sides.

[0027] At the same time, according to the requirements of the injection molded product, a first boss 111 and a second boss 112 protruding upward can also be provided on the top of the mold core 110. Through the cooperation of the mold cavity 120, the first boss 111 and the second boss 112, the injection molding of the product is realized, so that the product meets the production requirements.

[0028] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Any person skilled in the art can smoothly implement the present utility model according to what is shown in the accompanying drawings of the specification and what is described above; however, any minor changes, modifications and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are equivalent embodiments of the present utility model; at the same time, any changes, modifications and variations of the foregoing embodiments made according to the substantial technology of the present utility model are still within the scope of protection of the technical solution of the present utility model.

Claims

1. A mold core cutting nozzle structure, comprising a mold core body, characterized in that: The mold core body is provided with a mold core, a gap is provided between the side wall of the mold core and the mold core body, and the gap between the top surface and the side of the mold core forms a mold cavity; The mold core body is also provided with a glue feed channel, which is located at the side of the mold cavity. The starting end of the glue feed channel has a glue feed nozzle, and a glue inlet is opened between the mold cavity and the glue feed channel. The glue inlet is tilted downward along the glue feed channel and arranged in the mold cavity.

2. The mold core cutting nozzle structure according to claim 1, characterized in that: The inclination angle of the glue inlet is 35°-50°.

3. The mold core cutting nozzle structure according to claim 2, characterized in that: The inclination angle of the glue inlet is 45°.

4. The mold core cutting nozzle structure according to claim 1, characterized in that: The mold core and the glue inlet flow channel both have ejector pin holes, and the ejector pin holes of the glue inlet flow channel match the glue inlet port.

5. The mold core cutting nozzle structure according to claim 1, characterized in that: The top of the mold core is provided with a first protrusion and a second protrusion protruding upward.

6. The mold core cutting nozzle structure according to claim 1, characterized in that: Four groups of mold cores are arranged side by side on the mold core body, and the four groups of mold cores all have mold cavities, and the four groups of mold cavities are respectively connected with the glue inlet flow channels through the glue inlet ports.

7. The mold core cutting nozzle structure according to claim 6, characterized in that: The glue inlet nozzle is located in the middle of the mold body, and two groups of mold cores are distributed on both sides of the glue inlet nozzle.

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