A mounting structure of a rotating circlip type injection rod

Abstract

The application discloses a kind of installation structures of rotating clasp spring type injection molding rod, it is related to injection molding processing technical field, including injection molding base and injection molding bottom cover, the top of the injection molding base is installed with injection molding bottom cover, the top of the injection molding base is installed with connecting seat, the connecting seat is installed in the inside of injection molding bottom cover, the top of the connecting seat is installed with injection molding rod main body, the top of the injection molding rod main body is installed with fixed frame, rotating clasp spring installation structure is installed between connecting seat and injection molding rod main body, by rotating clasp spring installation structure, it is convenient to quickly install injection molding rod main body into connecting seat, injection molding channel structure is provided between the injection molding base and fixed frame.The installation structure of rotating clasp spring type injection molding rod, by rotating clasp spring installation structure, without the overall mold being disassembled in a large range, the installation and disassembly operation of injection molding rod can be quickly completed, greatly improve the operation convenience, while guaranteeing that structure is stable and satisfies the requirement of injection molding operation.

Description

Technical Field

[0001] This invention relates to the field of injection molding technology, specifically to a mounting structure for a rotary spring-loaded injection rod. Background Technology

[0002] In integrated circuit molding, the molding die is melted by high temperature, and then the injection molding device extrudes the die, allowing the molten die to enter the cavity through the auxiliary flow channel in the mold to complete the filling. In order to ensure that the cavity is fully filled, the injection molding device needs to have a certain height so that the injection can be completed while saving as much die as possible. Since the injection molding device needs a certain height, and the overall space of the mold is limited, the installation of the injection structure needs to meet the requirements of the internal space of the mold.

[0003] For example, in the case of an injection molding rod assembly and molding equipment with announcement number CN218557777U, the injection molding rod assembly includes an injection molding rod, a base, a limiting plate, and a cover plate. The bottom end of the injection molding rod has an installation head with a positioning hole on the bottom surface of the installation head. The base includes a support surface and a positioning protrusion. The support surface is set upward and abuts against the bottom surface of the installation head. The positioning protrusion is connected to the support surface and protrudes upward. The positioning protrusion is rotatably inserted into the positioning hole. The top of the cover plate has an installation hole that allows the installation head to pass through. The length of the installation hole is greater than the length of the installation head, and the width of the installation hole is less than the length of the installation head. The limiting plate is movably connected to the base. The limiting plate is used to prevent the installation head from rotating. The installation is convenient, and the injection molding rod is not easy to tilt due to the cooperation between the positioning hole and the positioning protrusion.

[0004] For example, an injection molding machine for producing plastic products, as disclosed in CN115071049A, includes a hydraulic device, a moving mold, a stationary mold, and an injection rod. One end of the injection rod is connected to a guide rod. A fixed platform is provided on one side of the stationary mold. An injection channel is opened in the middle of the fixed platform. A flow channel, a chute, and a heat insulation groove are opened inside the fixed platform. The chute is orthogonally connected to the injection channel. A pressure valve is installed between the flow channel and the chute. An anti-protrusion component is provided in the chute. An anti-condensation component is provided in the heat insulation groove. A cylinder and a heat-conducting cylinder are fixed on the side of the fixed platform away from the stationary mold. By setting an electromagnet, a connecting plate, an arc-shaped abutment plate, a guide rod, and a heat-conducting cylinder, the angle between the guide rod and the injection rod can be adjusted to avoid the injection nozzle and injection hole not being able to accurately align after the injection molding machine has been used for a long time. At the same time, the guide rod replaces part of the injection rod, which can reduce the length of the injection rod and improve the deformation of the injection rod.

[0005] Most of the aforementioned existing technologies improve the overall structure, but when installed in a mold with limited space, the mold and other structures need to be disassembled before installation can be convenient, making it difficult to install and disassemble the injection rod quickly and easily. Summary of the Invention

[0006] The purpose of this invention is to provide an installation structure for a rotary snap ring injection rod, so as to solve the problem mentioned in the background art that the injection rod can only be conveniently installed after the mold and other structures are disassembled when disassembling or installing within the limited mold space.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a mounting structure for a rotary spring-loaded injection rod, comprising an injection base and an injection bottom cover. The injection bottom cover is mounted on the top of the injection base, and a connecting seat is mounted on the top of the injection base. The connecting seat is installed inside the injection bottom cover, and an injection rod body is mounted on the top of the connecting seat. A fixing frame is mounted on the top of the injection rod body. A rotary spring-loaded mounting structure is installed between the connecting seat and the injection rod body. The rotary spring-loaded mounting structure facilitates the quick installation of the injection rod body into the connecting seat. An injection channel structure is provided between the injection base and the fixing frame, which allows molten plastic to pass through the injection rod body to complete the injection molding operation.

[0008] Furthermore, the rotary snap ring mounting structure includes a groove, and the outer surface of the connecting seat has a groove. There are two grooves, and the included angle between the two grooves is 180°. A ball bearing is movably installed inside each of the two grooves.

[0009] Furthermore, an annular retaining spring is fitted on the outer surface of the connecting seat, and the position of the annular retaining spring corresponds to the position of the groove. During installation, the outer surface of the ball fits against the inner ring surface of the annular retaining spring.

[0010] Furthermore, the bottom of the injection rod body is fixedly connected to the injection rod tail, and the inside of the connecting seat is provided with an installation groove, so that the injection rod tail is located inside the installation groove during installation.

[0011] Furthermore, a limiting groove is formed on the outer surface of the injection molding rod tail. There are two limiting grooves, and the included angle between the two limiting grooves is 180°. The position of the limiting groove corresponds to the position of the groove. During installation, the outer surface of the ball is located inside the limiting groove.

[0012] Furthermore, the outer surface of the injection molding rod tail is provided with two slits, and the included angle between the slits and the adjacent limiting groove is 90°.

[0013] Furthermore, the fixing frame has a fixing groove inside, and the top of the injection rod body is fixedly connected to the injection rod head. The injection rod head is located inside the fixing groove, and the fixing groove is threadedly connected to the injection head. The bottom of the injection head is in contact with the upper surface of the injection rod head.

[0014] Furthermore, the injection channel structure includes an inner cavity, the injection base has an inner cavity, the connecting seat is located directly above the inner cavity, the bottom of the inner cavity is fixedly connected to a feed pipe, and a guide ring is movably installed inside the inner cavity, the guide ring is located between the feed pipe and the connecting seat.

[0015] Furthermore, the bottom of the connector is provided with a first injection hole, which is connected to the mounting groove and is located directly above the guide ring.

[0016] Furthermore, a second injection hole is provided inside the injection rod body. The position of the second injection hole corresponds to the position of the first injection hole. The second injection hole passes through the tail of the injection rod, the injection rod body, and the head of the injection rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The installation structure of this rotary spring-loaded injection rod allows for easy installation of the injection rod body. When installing the injection rod body, insert the tail end of the injection rod into the mounting groove of the connector, align the cut with the ball bearing position, and push the injection rod body downwards to squeeze the ball bearing into the groove. Then, rotate the injection rod body 90° to align the ball bearing with the limiting groove. The ring spring will then press the ball bearing inwards and lock it into the limiting groove, quickly completing the installation and fixation of the injection rod body. For disassembly, rotate the injection rod body 90° in the opposite direction to align the ball bearing with the cut, and the injection rod body can be pulled out of the connector. This eliminates the need for extensive disassembly of the entire mold, allowing for quick installation and disassembly of the injection rod, significantly improving operational convenience while ensuring structural stability to meet injection molding requirements.

[0019] Furthermore, through the injection channel structure, after the molten plastic enters the inner cavity from the feed pipe, it enters the first injection hole along the guide ring, and then passes through the second injection hole and is discharged from the injection head. This ensures that the molten plastic smoothly passes through the injection rod body to complete the injection operation, without leakage or blockage, thus ensuring the stability of the injection operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional bottom view structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the three-dimensional half-section structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5This is a schematic diagram of a half-section of the injection-molded base of the present invention;

[0025] Figure 6 This is a schematic diagram of a half-section of the main body of the injection-molded rod of the present invention;

[0026] Figure 7 This is a schematic diagram of the main structure of the injection-molded rod of the present invention;

[0027] Figure 8 This is an exploded view of the connector structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the exploded bottom view of the connecting seat of the present invention.

[0029] In the diagram: 1. Injection base; 2. Injection bottom cover; 3. Connecting seat; 4. Injection rod body; 5. Injection head; 6. Ring spring; 7. Inner cavity; 8. Feed tube; 9. Guide ring; 10. Groove; 11. Ball bearing; 12. Mounting groove; 13. Tail end of injection rod; 14. Cutout; 15. Limiting groove; 16. Head of injection rod; 17. Fixing bracket; 18. First injection hole; 19. Second injection hole. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-8 The present invention provides the following technical solution: a rotating spring-loaded injection rod installation structure. To solve the problem that the injection rod needs to be disassembled before it can be easily installed in a limited mold space, the invention discloses an injection base 1 and an injection bottom cover 2. The injection bottom cover 2 is installed on the top of the injection base 1. The injection bottom cover 2 can be fixed to the injection base 1 by screws or adhesive. The injection bottom cover 2 serves to seal and protect the internal components of the injection base 1.

[0032] A connecting seat 3 is installed on the top of the injection base 1. The connecting seat 3 is installed inside the injection base cover 2. In use, the connecting seat 3 is first installed on the injection base 1, and then the injection base cover 2 is closed, thereby fixing the connecting seat 3 on the injection base 1. The injection base cover 2 has the effect of sealing, fixing and protecting the connecting seat 3, which can prevent the connecting seat 3 from falling off. An injection rod body 4 is installed on the top of the connecting seat 3. A fixing bracket 17 is installed on the top of the injection rod body 4. Multiple injection rod bodies 4 can be connected and fixed through the fixing bracket 17, which facilitates the simultaneous operation of multiple injection rod bodies 4. A rotary snap spring mounting structure is installed between the connecting seat 3 and the injection rod body 4. The rotary snap spring mounting structure facilitates the quick installation of the injection rod body 4 into the connecting seat 3.

[0033] The rotary retaining ring mounting structure includes a groove 10, the interior of which is a spherical groove. Two grooves 10 are formed on the outer surface of the connecting seat 3, with an included angle of 180° between them. The two grooves 10 are located on the left and right sides of the connecting seat 3, respectively. A ball bearing 11 is movably installed inside each of the two grooves 10. When unrestricted, the ball bearing 11 can roll and move within the spherical groove of the groove 10. When restricted, the ball bearing 11 cannot roll or move within the groove 10. A ring retaining ring 6 is fitted onto the outer surface of the connecting seat 3, its position corresponding to the position of the groove 10. During installation, the ring retaining ring 6 is fitted onto the outer surface of the connecting seat 3, covering the groove 10 within the ring retaining ring 6. During installation, the outer surface of the ball bearing 11 is in contact with the inner ring surface of the annular retaining spring 6. When the annular retaining spring 6 is installed on the outer surface of the connecting seat 3, it restricts the ball bearing 11 and fixes it inside the groove 10. At this time, the ball bearing 11 cannot roll or move within the groove 10. The bottom of the injection rod body 4 is fixedly connected to the injection rod tail 13. The connecting seat 3 has an installation groove 12. The injection rod tail 13 is inserted into the installation groove 12 inside the connecting seat 3, thereby installing the injection rod body 4 inside the connecting seat 3. During installation, the injection rod tail 13 is located inside the installation groove 12. The outer surface of the injection rod tail 13 has a limiting groove 15. The cross-sectional structure of the limiting groove 15 is an arc-shaped structure, which limits the movement of the ball bearing 11. There are two grooves 15, with an included angle of 180° between them. The two grooves 15 are located on the left and right sides of the injection rod tail 13, respectively, and their positions correspond to the positions of the grooves 10. During installation, the outer surface of the ball bearing 11 is located inside the groove 15, and the ball bearing 11 will be locked inside the groove 15. The ball bearing 11 is then fixed in place by the ring spring 6, thus fixing the injection rod tail 13 within the mounting groove 12 of the connecting seat 3. This prevents the injection rod tail 13 from rotating or moving inside the connecting seat 3. Two notches 14 are formed on the outer surface of the injection rod tail 13 through cutting. The notches 14 are aligned with the groove 10. The included angle between adjacent limiting grooves 15 is 90°. Two cuts 14 are located on the front and rear sides of the injection rod tail 13, respectively. The two cuts 14 and the two limiting grooves 15 are staggered around the circumference of the injection rod tail 13. When in use, align the cuts 14 with the position of the ball 11 and then insert the injection rod tail 13 into the mounting groove 12 of the connecting seat 3. Because of the cuts 14, the ball 11 will not affect the insertion of the injection rod tail 13. Then rotate the injection rod body 4 so that the injection rod body 4 rotates 90°. At this time, the ball 11 will be stuck in the limiting groove 15 on the injection rod tail 13. Then, install the ring spring 6 on the outer surface of the connecting seat 3. The ring spring 6 will restrict and fix the ball 11, thereby fixing the injection rod body 4.

[0034] The fixing frame 17 has a fixing groove inside. The top of the injection rod body 4 is fixedly connected to the injection rod head 16. The injection rod tail 13, the injection rod body 4 and the injection rod head 16 are an integral structure. The diameter of the injection rod head 16 is larger than the diameter of the injection rod body 4. The injection rod head 16 is located inside the fixing groove. The fixing frame 17 can fix the injection rod heads 16 on the top of multiple injection rod bodies 4. The fixing groove is threaded with an injection head 5. The bottom of the injection head 5 fits against the upper surface of the injection rod head 16. By rotating the injection head 5, the injection rod head 16 can be pressed into the fixing groove in the fixing frame 17. When it is necessary to disassemble the injection rod body 4, first loosen the ring spring 6 and loosen and remove the injection head 5 to unlock the injection rod body 4. Then rotate the injection rod body 4 and finally push the injection rod body 4 towards the injection head 5 to quickly remove the injection rod body 4 from the mold.

[0035] In practical use, first align the cut 14 with the position of the ball 11, and insert the tail 13 of the injection rod into the mounting groove 12 of the connecting seat 3. At this time, the cut 14 will clear the ball 11 and will not obstruct the insertion of the tail 13 of the injection rod. After insertion, rotate the body 4 of the injection rod 90° so that the limiting groove 15 is rotated to the position corresponding to the ball 11. At this time, the ball 11 will fall into the inside of the limiting groove 15. Then, put the ring retainer 6 on the outer surface of the connecting seat 3 to restrict the ball 11 from moving outward inside the groove 10. The installation of the body 4 of the injection rod can be completed. When disassembly is required, remove the ring retainer 6, rotate the body 4 of the injection rod 90° in the opposite direction so that the cut 14 is aligned with the ball 11, and the body 4 of the injection rod can be pulled out directly upward. There is no need to disassemble the entire mold structure, making disassembly and assembly more convenient.

[0036] Example 2: Please refer to Figures 2-9 Based on Embodiment 1, an injection channel structure is also disclosed, the specific structure of which is as follows: an injection channel structure is provided between the injection base 1 and the fixing frame 17, and the injection channel structure facilitates the molten plastic to pass through the injection rod body 4 to complete the injection operation.

[0037] The injection channel structure includes an inner cavity 7. The inner cavity 7 is formed inside the injection base 1. A connecting seat 3 is located directly above the inner cavity 7. A feed pipe 8 is fixedly connected to the bottom of the inner cavity 7. A through hole is provided at the bottom of the injection base 1, allowing molten plastic to be fed into the feed pipe 8. A guide ring 9 is movably installed inside the inner cavity 7, located between the feed pipe 8 and the connecting seat 3. The guide ring 9 connects the bottom of the connecting seat 3 to the feed pipe 8, allowing molten plastic to pass through the feed pipe 8 and into the connecting seat 3. A first injection hole 18 is provided at the bottom of the connecting seat 3. The first injection hole 18 is connected to the connecting seat 3. The mounting groove 12 is connected, and the molten plastic entering the connecting seat 3 will pass through the first injection hole 18 to reach the mounting groove 12 and the tail of the injection rod 13. The first injection hole 18 is located directly above the guide ring 9. The body of the injection rod 4 has a second injection hole 19 inside, and the position of the second injection hole 19 corresponds to the position of the first injection hole 18. The molten plastic reaching the tail of the injection rod 13 will enter the second injection hole 19. The second injection hole 19 passes through the tail of the injection rod 13, the body of the injection rod 4 and the head of the injection rod 16. The molten plastic entering the second injection hole 19 will eventually be squeezed out from the head of the injection rod 16, thus facilitating the completion of the injection molding operation.

[0038] In practical use, molten plastic enters the feed pipe 8 through the through hole at the bottom of the injection base 1, then passes through the guide ring 9 in the inner cavity 7, enters the first injection hole 18 at the bottom of the connecting seat 3, and then flows into the second injection hole 19 that passes through the tail 13 of the injection rod, the body 4 of the injection rod, and the head 16 of the injection rod. Finally, it is extruded from the head 16 of the injection rod through the injection head 5 to complete the injection operation. The entire injection process has a smooth channel path, which can ensure the stable operation of the injection operation.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An installation structure for a rotary snap ring injection rod, comprising an injection base (1) and an injection bottom cover (2), wherein the injection base (1) is topped with the injection bottom cover (2). Its features are: A connecting seat (3) is installed on the top of the injection base (1). The connecting seat (3) is installed inside the injection base cover (2). An injection rod body (4) is installed on the top of the connecting seat (3). A fixing bracket (17) is installed on the top of the injection rod body (4). A rotating snap ring mounting structure is installed between the connecting seat (3) and the injection rod body (4). The rotating snap ring mounting structure facilitates the quick installation of the injection rod body (4) into the connecting seat (3). An injection channel structure is provided between the injection base (1) and the fixing frame (17), which facilitates the molten plastic to pass through the injection rod body (4) to complete the injection operation.

2. The mounting structure of a rotary snap ring injection molding rod according to claim 1, characterized in that: The rotating snap ring mounting structure includes a groove (10). The outer surface of the connecting seat (3) is provided with a groove (10). There are two grooves (10). The included angle between the two grooves (10) is 180°. A ball (11) is movably installed inside each of the two grooves (10).

3. The mounting structure of a rotary snap ring injection rod according to claim 2, characterized in that: The outer surface of the connecting seat (3) is fitted with an annular retaining spring (6), the position of the annular retaining spring (6) corresponds to the position of the groove (10), and during installation, the outer surface of the ball (11) is in contact with the inner ring surface of the annular retaining spring (6).

4. The mounting structure of a rotary snap ring injection molding rod according to claim 3, characterized in that: The bottom of the injection rod body (4) is fixedly connected to the injection rod tail (13), and the inside of the connecting seat (3) is provided with an installation groove (12). During installation, the injection rod tail (13) is located inside the installation groove (12).

5. The mounting structure of a rotary snap ring injection rod according to claim 4, characterized in that: The outer surface of the injection rod tail (13) is provided with a limiting groove (15). There are two limiting grooves (15), and the included angle between the two limiting grooves (15) is 180°. The position of the limiting groove (15) corresponds to the position of the groove (10). During installation, the outer surface of the ball (11) is located inside the limiting groove (15).

6. The mounting structure of a rotary snap ring injection rod according to claim 5, characterized in that: The outer surface of the injection rod tail (13) is provided with a cut (14), and there are two cuts (14). The included angle between the cut (14) and the adjacent limiting groove (15) is 90°.

7. The mounting structure of a rotary snap ring injection rod according to claim 1, characterized in that: The fixing frame (17) has a fixing groove inside. The top of the injection rod body (4) is fixedly connected to the injection rod head (16). The injection rod head (16) is located inside the fixing groove. The fixing groove is threadedly connected to the injection head (5). The bottom of the injection head (5) is in contact with the upper surface of the injection rod head (16).

8. The mounting structure of a rotary snap ring injection rod according to claim 4, characterized in that: The injection channel structure includes an inner cavity (7). The inner cavity (7) is opened inside the injection base (1). The connecting seat (3) is located directly above the inner cavity (7). The inner bottom of the inner cavity (7) is fixedly connected to the feed pipe (8). The guide ring (9) is movably installed inside the inner cavity (7). The guide ring (9) is located between the feed pipe (8) and the connecting seat (3).

9. The mounting structure of a rotary snap ring injection rod according to claim 8, characterized in that: The bottom of the connecting seat (3) is provided with a first injection hole (18), which is connected to the mounting groove (12) and is located directly above the guide ring (9).

10. The mounting structure of a rotary snap ring injection molding rod according to claim 9, characterized in that: The injection rod body (4) has a second injection hole (19) inside. The position of the second injection hole (19) corresponds to the position of the first injection hole (18). The second injection hole (19) passes through the tail (13), the body (4) and the head (16) of the injection rod.

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