Glue injection port for injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a glue injection port for an injection mold, which comprises a mounting pipe and a joint, the outer wall of the mounting pipe is provided with threads, the side wall of the mounting pipe is fixedly connected with a baffle, the end surface of the mounting pipe is arc-shaped, and the inner wall of the joint is matched with the arc-shaped surface of the mounting pipe. The installation pipe is communicated with the connector, four screws are evenly connected to the side wall of the connector in a threaded mode, an annular groove is formed in the side wall of the installation pipe, the screws abut against the annular groove, and an anti-blocking assembly is arranged in an inner cavity of the connector. The anti-blocking assembly comprises a cylinder arranged in an inner cavity of the connector, an annular plate is fixedly connected to the inner wall of the mounting pipe, the end face of the cylinder abuts against the annular plate, a check ring is fixedly connected to the position, located on the outer side of the cylinder, of the inner wall of the connector, and a blocking groove is formed in the inner wall of the mounting pipe. According to the utility model, the glue injection port can be cleaned during product injection molding, so that the next injection molding of different types of products is prevented from being influenced, and the product injection molding quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to a glue injection port for an injection mold. Background Art

[0002] The injection port of an injection mold is an important part of the injection molding process. It is usually located at the top of the mold and is the entrance for the plastic melt to enter the mold cavity. The design and position of the injection port will affect the flow rate of the plastic melt, the filling effect, and the quality of the plastic part.

[0003] Most of the traditional injection ports are integrated and connected to the extrusion equipment with threads. When the same product is injected, the molten hot plastic tends to solidify in the injection port, which can easily cause the injection port to be blocked. On the other hand, the hot plastic remaining in the injection port will affect the injection molding of other types of products, resulting in poor color and quality of other types of products during the first injection. It is inconvenient to clean and replace the injection port before injection, which reduces the flexibility of the injection molding equipment. Utility Model Content

[0004] The utility model aims to provide a glue injection port for an injection mold, which can be cleaned when injecting products to prevent affecting the next injection molding of different types of products and improve the injection molding quality of products.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A glue injection port for an injection mold comprises a mounting tube and a joint, wherein the outer wall of the mounting tube is provided with threads, a baffle is fixedly connected to the side wall of the mounting tube, the end face of the mounting tube is arranged in an arc shape, the inner wall of the joint is adapted to the arc surface of the mounting tube, the mounting tube is connected to the joint, four screws are evenly threadedly connected to the side wall of the joint, the side wall of the mounting tube has an annular groove, the screws abut against the annular groove, and an anti-blocking component is arranged in the inner cavity of the joint.

[0007] The anti-blocking component includes a cylinder arranged in the inner cavity of the joint, an annular plate is fixedly connected to the inner wall of the mounting tube, the end face of the cylinder is against the annular plate, a retaining ring is fixedly connected to the inner wall of the joint outside the cylinder, a retaining groove is opened on the inner wall of the mounting tube, and the retaining ring and the retaining groove match each other.

[0008] The end surface of the installation pipe and the inner wall of the joint are respectively provided with sealing grooves, and the same sealing ring is installed in the sealing grooves on both sides.

[0009] The end surface of the joint is fixedly connected with a screw sleeve, the side wall of the baffle is provided with a screw hole, and the screw sleeve is threadedly connected with the screw hole.

[0010] The side wall of the joint is evenly provided with four circular grooves, and the screws are all located in the circular grooves.

[0011] The left end surface of the annular plate is arranged in an inclined manner.

[0012] The technical effects achieved by the utility model are:

[0013] The utility model discloses an injection port for an injection mold, through the cooperation between an installation pipe, a joint, a baffle and an anti-clogging component, after the injection molding of a product is completed, the injection port can be cleaned or replaced according to the technical requirements of the next injection molding product. On the one hand, it can prevent the injection port from being blocked, resulting in uneven extrusion of hot plastic, and on the other hand, it can reduce defective products caused by poor color or quality in the first injection molding, thereby ensuring the reliability and flexibility of the injection port during product injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereogram of an embodiment of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the installation pipe of the embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of a connector according to an embodiment of the utility model;

[0018] Figure 5 This utility model embodiment Figure 2 Enlarged view of point A in .

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Mounting tube; 2. Baffle; 3. Joint; 4. Screw; 5. Annular groove; 6. Screw sleeve; 7. Screw hole; 8. Cylinder; 9. Annular plate; 10. Baffle groove; 11. Baffle ring; 12. Sealing ring; 13. Sealing groove; 14. Circular groove. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0022] like Figure 1-5As shown, a glue injection port for an injection mold includes a mounting tube 1 and a joint 3. The outer wall of the mounting tube 1 is provided with a thread, a baffle 2 is fixedly connected to the side wall of the mounting tube 1, the end face of the mounting tube 1 is arranged in an arc shape, the inner wall of the joint 3 is adapted to the arc surface of the mounting tube 1, the mounting tube 1 is connected to the joint 3, four screws 4 are evenly threadedly connected to the side wall of the joint 3, an annular groove 5 is provided on the side wall of the mounting tube 1, the screws 4 are abutted against the annular groove 5, and an anti-blocking component is provided in the inner cavity of the joint 3.

[0023] Among them, the end face of the installation tube 1 is semicircular, and the inner wall of the joint 3 is a semicircular groove. The installation tube 1 and the joint 3 fit each other, which can effectively ensure their sealing.

[0024] like Figure 2 and Figure 5 As shown, the anti-blocking assembly includes a cylinder 8 arranged in the inner cavity of the joint 3, an annular plate 9 is fixedly connected to the inner wall of the mounting tube 1, the end face of the cylinder 8 abuts against the annular plate 9, and the left end face of the annular plate 9 is inclined. A retaining ring 11 is fixedly connected to the inner wall of the joint 3 outside the cylinder 8, and a retaining groove 10 is opened on the inner wall of the mounting tube 1, and the retaining ring 11 and the retaining groove 10 match each other.

[0025] The inner diameter of the cylinder 8 has various models, and can also be processed into a cylinder 8 of a specific size according to actual injection molding requirements, so that it can adapt to injection ports with different injection molding requirements. In addition, by providing the retaining ring 11 and the retaining groove 10 with a stepped shape, when the joint 3 and the mounting tube 1 are installed, a sealing effect can be achieved, which can ensure stability during injection molding on the one hand, and avoid leakage of hot plastic during injection molding on the other hand.

[0026] like Figure 5 As shown, sealing grooves 13 are respectively provided on the end surface of the mounting pipe 1 and the inner wall of the joint 3, and the same sealing ring 12 is installed in the sealing grooves 13 on both sides.

[0027] Specifically, the sealing ring 12 is made of polyimide material, which is a high-performance sealing material, usually made of polyimide. Polyimide is a special type of polymer material with excellent high temperature resistance and chemical stability; it can usually withstand temperatures above 300°C. This allows them to provide reliable sealing performance in high temperature environments and is suitable for applications requiring high temperature stability; it has good chemical stability and can resist erosion and corrosion from many chemicals. This allows the polyimide sealing ring 12 to perform well in environments that need to resist corrosive media; therefore, it has good stability in the field.

[0028] like Figure 3 and Figure 4 As shown, a screw sleeve 6 is fixedly connected to the end surface of the joint 3, a screw hole 7 is opened on the side wall of the baffle 2, and the screw sleeve 6 is threadedly connected to the screw hole 7.

[0029] Specifically, the screw sleeve 6 and the screw hole 7 are mainly used as auxiliary connection structures. On the one hand, they facilitate the joint 3 to be in a precise position during installation. On the other hand, they can also play a secondary sealing role, thereby effectively improving the overall structural strength and durability of the injection port.

[0030] like Figure 4 As shown, four circular grooves 14 are evenly formed on the side wall of the joint 3 , and the screws 4 are all located in the circular grooves 14 .

[0031] Among them, the screw 4 is received in the circular groove 14, so that after the joint 3 is installed and tightened, the screw 4 is lower than the surface of the joint 3, which is convenient for the joint 3 to have a good sealing effect when it is connected to the mold, and at the same time will not affect the collision phenomenon during the operation of the joint 3.

[0032] The working principle of the utility model is as follows: when product injection molding is required, in order to ensure the injection molding quality, the joint 3 is first removed for inspection, the screw 4 is first loosened by a wrench to disengage the screw 4 from the annular groove 5, and then the joint 3 is rotated to drive the screw sleeve 6 to rotate. When the screw sleeve 6 is disengaged from the screw hole 7, the joint 3 can be removed, and then the cylinder 8 can be removed for cleaning to ensure that no impurities such as hot plastic remain inside. At the same time, different types of cylinders 8 can also be replaced according to the injection molding technical requirements, and the utility model has good flexibility and reliability.

[0033] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A glue injection port for an injection mold, characterized in that: The invention comprises a mounting tube (1) and a joint (3), wherein the outer wall of the mounting tube (1) is provided with a thread, a baffle (2) is fixedly connected to the side wall of the mounting tube (1), the end face of the mounting tube (1) is arranged in an arc shape, the inner wall of the joint (3) is adapted to the arc surface of the mounting tube (1), the mounting tube (1) is connected to the joint (3), four screws (4) are evenly threadedly connected to the side wall of the joint (3), the side wall of the mounting tube (1) is provided with an annular groove (5), the screws (4) abut against the annular groove (5), and the inner cavity of the joint (3) is provided with an anti-blocking component.

2. The glue injection port for an injection mold according to claim 1, characterized in that: The anti-blocking component comprises a cylinder (8) arranged in the inner cavity of the joint (3); an annular plate (9) is fixedly connected to the inner wall of the mounting tube (1); the end surface of the cylinder (8) abuts against the annular plate (9); a retaining ring (11) is fixedly connected to the inner wall of the joint (3) outside the cylinder (8); a retaining groove (10) is formed on the inner wall of the mounting tube (1); the retaining ring (11) and the retaining groove (10) match each other.

3. The glue injection port for an injection mold according to claim 1, characterized in that: The end surface of the installation tube (1) and the inner wall of the joint (3) are respectively provided with sealing grooves (13), and the same sealing ring (12) is installed in the sealing grooves (13) on both sides.

4. The glue injection port for an injection mold according to claim 1, characterized in that: The end surface of the joint (3) is fixedly connected with a screw sleeve (6), the side wall of the baffle (2) is provided with a screw hole (7), and the screw sleeve (6) is threadedly connected to the screw hole (7).

5. The glue injection port for an injection mold according to claim 1, characterized in that: Four circular grooves (14) are evenly formed on the side wall of the joint (3), and the screws (4) are all located in the circular grooves (14).

6. The glue injection port for an injection mold according to claim 2, characterized in that: The left end surface of the annular plate (9) is arranged in an inclined manner.

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