Glue injection port for injection mold

Abstract

The utility model discloses a glue injection port for an injection mold, which comprises a glue injection pipe body, a flow guide cone and a heating guide ring, and the flow guide cone and the heating guide ring are fixedly mounted on the inner side of the glue injection pipe body through a splitter plate. And an electric heating wire is embedded into the heating guide ring and is used for heating the glue solution. A plurality of splitter plates are arranged in the glue injection pipe body, and main runners and sub-runners which are arranged in a staggered manner are formed among the heating guide rings, so that a Tesla valve structure is formed, and the flowing smoothness of a glue solution is remarkably improved. The heating guide ring is provided with a temperature sensor, so that the heating temperature is monitored and regulated in real time, and the temperature uniformity and flow stability of the glue solution are ensured. In addition, the surface of the glue injection pipe body is coated with the anti-adhesion high-temperature-resistant coating, cleaning is convenient, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding production technical field, concretely is a glue injection port for injection mold. BACKGROUND

[0002] Injection molding as a widely used molding process in industrial production, because it can efficiently, accurately manufacture various complex shape plastic products and is popular. In the injection molding process, glue injection port as the key component connecting injection molding machine and mold, its design and performance directly affect the delivery efficiency of glue, temperature control and product quality. Therefore, the structure optimization and performance improvement of glue injection port has been an important issue in injection molding technology research and application.

[0003] The existing glue injection port for injection mold usually adopts simple straight-through structure or a few designs with basic flow guiding function. These traditional glue injection ports have the following main problems in actual application:

[0004] Large flow resistance, unsmooth flow: the traditional glue injection port design lacks effective flow guiding structure, which leads to turbulent flow and backflow of glue during delivery, increases flow resistance and reduces glue injection efficiency. In addition, unsmooth flow may cause the generation of bubbles, affecting the surface quality and mechanical properties of the product.

[0005] Temperature control is not uniform: the glue needs to maintain appropriate temperature during glue injection to ensure its flowability and molding quality. However, the traditional glue injection port often relies on external heating equipment for temperature control, and the temperature distribution is not uniform, making it difficult to accurately control the temperature of the glue, resulting in large fluctuations in product quality.

[0006] Difficult to clean, high maintenance cost: the internal structure of glue injection port is complex or designed unreasonably, which easily leads to glue residue, especially under high temperature conditions, residual glue is difficult to clean, increasing the difficulty and cost of maintenance. In addition, residual glue may affect the flowability and quality of glue during the next glue injection, reducing production efficiency.

[0007] Therefore, the existing problems are studied and improved, and a glue injection port for injection mold is provided to solve the existing problems, aiming to solve the problems and improve the practical value through the technology. INVENTION CONTENTS

[0008] The utility model aims at providing a glue injection port for injection mold, by setting flow cone and heating guide ring in the glue injection pipe body, and adopting the main flow channel and shunt channel staggered structure of Tesla valve type, realizing efficient flow guiding and accurate temperature control of glue, and having the advantages of easy cleaning, stable structure, etc.

[0009] A glue injection port for injection mold, comprising:

[0010] The glue injection pipe body, the flow guide cone and the heating guide ring are fixedly installed on the inner side of the glue injection pipe body, a plurality of shunt plates are uniformly distributed in the circumferential direction on the inner side of the glue injection pipe body, and the flow guide cone and the heating guide ring are fixed to the inner side of the glue injection pipe body through the shunt plates,

[0011] The number of the flow guide cones is several, and the flow guide cones are sequentially connected in a conical structure,

[0012] The heating guide ring is in a circular ring shape, and an electric heating wire is embedded in the inside of the heating guide ring, the surface of the glue injection pipe body is continuously stacked in a conical sleeve hole shape, the specifications of the heating guide ring are two, the heating guide ring is respectively sleeved with the upper end and the lower end of the flow guide cone, a main flow channel is formed between adjacent heating guide rings, and a shunt channel is formed between the two sides of the heating guide ring and the inner wall of the glue injection pipe body and the surface of the flow guide cone, and the main flow channel and the shunt channel are arranged in a staggered manner and sequentially arranged in communication along the axial direction.

[0013] In a preferred example, the upper end and the lower end are respectively provided with flanges, and the flanges are used to connect the surface of the injection mold. The feeding hopper facilitates the injection of glue liquid, the flange opening is stably connected with the injection mold, and the feeding hopper is convenient to install and disassemble; meanwhile, the glue liquid can enter the mold in the shortest path, and the glue injection efficiency is improved.

[0014] In a preferred example, the top end of the flow guide cone extends to the inner top surface of the glue injection pipe body in a semispherical shape, and the bottom end penetrates the inner bottom surface of the glue injection pipe body in an inverted conical shape.

[0015] Specifically, the top end inside is polished in a spherical shape to improve the flow guiding effect, and the bottom end is polished in a conical shape to guide the beam flow of the glue liquid. The combination of the spherical top end and the conical bottom end enables the glue liquid to obtain the best flow guiding effect at the initial and terminal stages of flow, reduces the impact force and turbulence of the glue liquid, and improves the forming quality and surface smoothness of the product.

[0016] In a preferred example, the shunt channel and the main flow channel of the inverted J-shaped flow guide cone are in communication, and the structure is similar to a Tesla valve, so that the glue liquid can obtain sufficient flow guiding and pressure regulation in the bending channel, and the risk of backflow and blockage is reduced.

[0017] The utility model discloses in a preferable example can be further configured as: the member for metal material is used for the glue liquid heat conduction between each other, keeps the uniformity of glue liquid heat. The metal material is adopted to the flow cone body, can realize the efficient heat transfer through the shunt plate, and the uniform temperature field can be maintained in the glue injection pipe body inside, prevents the flow from being not smooth or solidification due to partial temperature being low.

[0018] The utility model discloses in a preferable example can be further configured as: still be provided with temperature sensor and wiring terminal connected with electric heating wire in the inside, for the heating temperature of real -time monitoring and regulation, to guarantee the flow stability and heat uniformity of glue liquid in and inside.

[0019] The utility model discloses in a preferable example can be further configured as: still be provided with a plurality of reinforcing ribs between the shunt plate and the flow cone body, and the reinforcing rib is evenly distributed in the circumference and is connected with the inner wall, for further improving the stability in the glue injection process, and avoiding the vibration or deviation caused by the high -speed flow of glue liquid. Design a plurality of reinforcing ribs between the shunt plate and the flow cone body, can promote the stability of the flow cone body when high -speed glue injection, prevent its loose, displacement or vibration, thereby guaranteeing that the glue injection process is continuous reliable.

[0020] The utility model discloses in a preferable example can be further configured as: and the inner wall surface are all coated with anti -adhesion high -temperature resistant coating, to reduce the adhesion of glue liquid in the flow process and facilitate subsequent cleaning. After the main flow passage and the shunt passage adopt the anti -adhesion high -temperature resistant coating, the glue liquid is not easy to bond in the flow passage inner wall, can reduce the cleaning difficulty and downtime greatly, improves glue injection efficiency and equipment operation rate simultaneously.

[0021] The utility model discloses a scheme that adopts the Tesla valve type flow channel design and the heating guide ring combination, can realize the efficient guidance of glue liquid flow and the accurate regulation of temperature in the glue injection process, and through the technical features such as the reinforcing rib between each part and the anti -adhesion coating, effectively solve the deficiency of traditional glue injection port in flow smoothness, temperature uniformity, cleaning convenience and structural stability. The glue injection port for injection mould is widely used, can improve injection molding efficiency, reduce the generation of defective products, and simplify the cleaning and maintenance process.

[0022] The utility model discloses the obtained beneficial effect is:

[0023] 1. The utility model discloses in, through the main flow passage and the shunt passage staggered arrangement of adopting the Tesla valve structure, effectively increased the flow smoothness of glue liquid, reduced the flow resistance significantly, thereby improved the glue injection efficiency.

[0024] 2. The utility model discloses a heating guide ring inside setting electric heating wire and temperature sensor, realized real -time monitoring and accurate control to heating temperature, ensured the flow stability and heat uniformity of glue liquid in main flow channel and branch flow channel, promoted the flowability and quality consistency of glue liquid.

[0025] 3. The utility model discloses a high temperature heating function makes in cleaning stage can melt and drop the residual glue liquid in the inside of glue injection pipe body rapidly, greatly reduced the cleaning time and labor intensity, prolong the service life of glue injection simultaneously. DRAWINGS

[0026] Figure 1 It is the whole structure schematic diagram of an embodiment of the utility model;

[0027] Figure 2 It is the cross section structure schematic diagram of an embodiment of the utility model;

[0028] Figure 3 It is the main flow channel and branch flow channel structure schematic diagram of an embodiment of the utility model;

[0029] Figure 4 It is the guide cone body and heating guide ring structure schematic diagram of an embodiment of the utility model.

[0030] Signs:

[0031] 100, glue injection pipe body; 110, feed hopper; 120, flange mouth; 130, branch plate; 101, main flow channel; 102, branch flow channel; 200, guide cone body; 300, heating guide ring. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, below combining specific implementation mode and referring to the attached drawing, the utility model is explained in further detail. It is to explain that the embodiment of the utility model and the feature in the embodiment can be combined mutually in the case where there is no conflict.

[0033] It is understood that these descriptions are only exemplary, and not to limit the scope of the utility model.

[0034] Below combining the attached Figures 1-4 Some embodiments of the utility model provide a glue injection port for injection mold.

[0035] As Figure 1As shown, the embodiment provides a glue injection port for injection mold, which comprises a glue injection pipe body 100, a flow guide cone 200 located inside the glue injection pipe body 100, and a heating guide ring 300. The inner side of the glue injection pipe body 100 is fixedly installed with a plurality of shunt plates 130 uniformly distributed in the circumferential direction, which are used to fix the flow guide cone 200 and the heating guide ring 300, and ensure their stability during the glue injection process.

[0036] The flow guide cone 200 is Figure 3 a plurality of and in the form of a conical structure, and are sequentially connected at the head and tail to form a continuous flow guide path. The top end of each flow guide cone 200 extends to the inner top surface of the feed hopper 110, and is polished in the form of a semicircular ball to improve the flow guide effect of the glue solution; the bottom end penetrates through the glue injection pipe body 100 and the flange opening 120, and the surface is in the form of an inverted cone, which is helpful for beam guiding of the glue solution.

[0037] The heating guide ring 300 is Figure 4 in the form of a circular ring, and is internally embedded with an electric heating wire for heating the flow guide cone 200 and the glue solution to maintain the flowability of the glue solution. The specifications of the heating guide ring 300 are divided into two types, which are respectively sleeved on the upper and lower ends of the flow guide cone 200. The adjacent heating guide rings 300 form a main flow channel 101, while the two sides of the heating guide ring 300 and the inner wall of the glue injection pipe body 100 and the surface of the flow guide cone 200 form a shunt channel 102. The main flow channel 101 and the shunt channel 102 are arranged in a staggered manner and are sequentially arranged and communicated in the axial direction, forming a Tesla valve structure, which effectively increases the flow smoothness of the glue solution.

[0038] The feed hopper 110 and the flange opening 120 are respectively arranged at the upper and lower ends of the glue injection pipe body 100, as Figure 2 shown. The flange opening 120 is used to connect with the surface of the injection mold to ensure that the glue solution can be stably delivered into the injection mold.

[0039] The heating guide ring 300 is internally provided with a temperature sensor and a wiring terminal connected with the electric heating wire. The temperature sensor monitors the heating temperature of the heating guide ring 300 in real time, and realizes accurate regulation and control of the heating temperature by controlling the current of the electric heating wire. This design ensures the flow stability and heat uniformity of the glue solution inside the main flow channel 101 and the shunt channel 102.

[0040] A plurality of reinforcing ribs are arranged between the shunt plate 130 and the flow guide cone 200. These reinforcing ribs are uniformly distributed in the circumferential direction and are connected with the inner wall of the glue injection pipe body 100, which further improves the stability of the flow guide cone 200 during the glue injection process, avoids vibration or deviation caused by high-speed flow of the glue solution, and ensures the stability and accuracy of the glue injection process.

[0041] The inner wall surfaces of the main flow channel 101 and the branch flow channel 102 are coated with an anti-adhesion high-temperature-resistant coating. This coating can reduce the adhesion of the glue liquid during flow, facilitate subsequent cleaning work, and prolong the service life of the glue injection port.

[0042] Working principle

[0043] During the injection molding process, the glue liquid is injected into the glue injection pipe body 100 through the feeding hopper 110. The glue liquid first passes through the flow guide cone 200, and under the action of the flow guide cone 200, the glue liquid is effectively guided into the main flow channel 101 and the branch flow channel 102. Because the main flow channel 101 and the branch flow channel 102 adopt a Tesla valve structure design, the glue liquid undergoes multiple changes in direction and flow resistance during flow, significantly improving flow smoothness and reducing flow resistance.

[0044] The heating function provided by the heating guide ring 300 ensures the temperature stability of the glue liquid during flow, improves the flowability of the glue liquid, and avoids flow problems or solidification caused by uneven temperature. During the cleaning stage, by increasing the temperature of the heating guide ring 300, the residual glue liquid inside the glue injection pipe body 100 can be quickly melted and dropped, simplifying the cleaning process and reducing downtime.

[0045] Advantages

[0046] Smooth flow: Through the staggered arrangement of the main flow channel 101 and the branch flow channel 102 with a Tesla valve structure, the flow smoothness of the glue liquid is effectively increased, the flow resistance is reduced, and the glue injection efficiency is improved.

[0047] Temperature control: The heating guide ring 300, the electric heating wire inside it, and the temperature sensor realize real-time monitoring and accurate control of the temperature of the glue liquid, ensuring the flowability and consistency of the quality of the glue liquid.

[0048] Easy to clean: The high-temperature heating function can quickly melt the residual glue liquid during the cleaning stage, reducing cleaning time and labor intensity and prolonging the service life of the glue injection port.

[0049] Stable structure: Through the design of the flow distribution plate 130 and the reinforcing ribs, the stability of the flow guide cone 200 and the heating guide ring 300 during glue injection is ensured, avoiding vibration or deviation caused by high-speed flow of the glue liquid.

[0050] Anti-adhesion: The anti-adhesion high-temperature-resistant coating on the inner wall reduces the adhesion of the glue liquid, facilitates subsequent cleaning work, and improves the maintenance convenience of the equipment.

[0051] The glue injection port for injection mold described in the embodiment effectively improves the flowability of glue liquid and temperature control capability by the combination of the flow guide cone and the heating guide ring, adopts the Tesla valve structure design, and has significant advantages in the injection molding production process due to the stable structure and convenient cleaning design, and is suitable for the efficient glue injection demand of various injection molds.

[0052] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0053] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A gate for injection molding, characterized by, The application relates to a glue injection pipe body (100) and a guide cone (200) and a heating guide ring (300) arranged in the glue injection pipe body (100), wherein the inner side of the glue injection pipe body (100) is fixedly provided with a plurality of shunt plates (130) which are uniformly distributed in the circumferential direction, the guide cone (200) and the heating guide ring (300) are fixed to the inner side of the glue injection pipe body (100) through the shunt plates (130), the guide cone (200) is in a conical structure and a plurality of guide cones (200) are sequentially connected in a head-to-tail mode, the heating guide ring (300) is in a circular ring shape and internally embeddedly provided with an electric heating wire, the surface of the glue injection pipe body (100) is a continuously stacked conical sleeve hole, the heating guide ring (300) has two specifications, is respectively sleeved on the upper and lower ends of the guide cone (200), forms a main flow channel (101) between adjacent heating guide rings (300), and forms a shunt channel (102) between the two sides of the heating guide ring (300) and the inner wall of the glue injection pipe body (100) and the surface of the guide cone (200), and the main flow channel (101) and the shunt channel (102) are arranged in an interlaced mode and sequentially arranged in an axial direction. The upper and lower ends of the glue injection pipe body (100) are respectively provided with a feeding hopper (110) and a flange (120), and the flange (120) is used for being connected with the surface of an injection mold.

2. The gate for injection molding according to claim 1, wherein The guide cone (200) is located on the axis of the glue injection pipe body (100), the topmost guide cone (200) extends to the inner top surface of the feeding hopper (110) and is in a semispherical shape, and the bottommost guide cone (200) penetrates through the glue injection pipe body (100) and the flange (120) and is in an inverted conical shape.

3. The gate for injection molding according to claim 1, wherein The shunt channel (102) is in an inverted J shape, and the two ends of the shunt channel (102) are communicated with the main flow channel (101).

4. The gate for injection molding according to claim 1, wherein The guide cone (200) is a metal member and is used for indirectly conducting heat to glue liquid through the shunt plates (130), so that the uniformity of the heat of the glue liquid is maintained.

5. The gate for injection molding according to claim 1, wherein The heating guide ring (300) is further provided with a temperature sensor and a wiring terminal connected with the electric heating wire, is used for monitoring and regulating the heating temperature of the heating guide ring (300) in real time, so that the flow stability and the heat uniformity of the glue liquid in the main flow channel (101) and the shunt channel (102) are ensured.

6. The gate for injection molding according to claim 1, wherein A plurality of reinforcing ribs are arranged between the shunt plates (130) and the guide cone (200), the reinforcing ribs are uniformly distributed in a circumferential direction and are connected with the inner wall of the glue injection pipe body (100), are used for further improving the stability of the guide cone (200) during the glue injection process, and avoid vibration or deviation caused by high-speed flow of the glue liquid.

7. The gate for injection molding according to claim 1, wherein The inner wall surfaces of the main flow channel (101) and the shunt channel (102) are coated with an anti-adhesion high-temperature-resistant coating, so that the adhesion of the glue liquid during the flow process is reduced and subsequent cleaning is facilitated.

8. The gate for injection molding according to claim 1, wherein ​

Images