Sealing ring injection mold with automatic ejection structure

Abstract

The utility model discloses a seal ring injection mold with an automatic ejection structure, which comprises a base, a limiting rod is fixedly connected to the middle position of one side of the top end of the base, a lifting mechanism is arranged inside one side of the base, an upper mold block is arranged outside the lifting mechanism, and an injection molding opening is formed in the middle position of the top end of the upper mold block. A lower mold is arranged in the middle of the top end of the base, pressing mechanisms are arranged on the two sides in the lower mold, and annular molds are arranged at the top ends of the pressing mechanisms. Injection molding work is conducted on the interior of the annular mold through the injection molding opening, after injection molding is finished, the upper mold block leaves the top end of the annular mold, at the moment, due to the counter-acting force of extrusion of the spring, the annular mold and the internal sealing ring can be pushed to be lifted through the movable block and the connecting rod, and at the moment, the electric push rod stretches out and draws back; and the sealing ring in the annular mold can be pushed out quickly from the through hole in the bottom end of the annular mold.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing ring processing, in particular to a sealing ring injection mold with an automatic ejection structure. Background Art

[0002] Sealing rings are suitable for hardware and plastics, water supply and drainage, HVAC, fire protection, pharmaceuticals, shipbuilding and other piping systems, automobiles, motorcycles, various machinery, household appliances, electronics, toys, sports equipment, pneumatic components and bathroom fixtures. Sealing ring injection molds are specialized molds used to produce various types of sealing rings. They typically consist of a mold base, a cavity, and an injection system. Molten plastic is injected into the mold cavity and then cooled to form a sealing ring.

[0003] An injection mold for manufacturing a sealing ring disclosed in Chinese patent announcement number CN205735800U, after covering the mold top cover, the filling body falls into the annular groove, and the filling body and the annular groove form the shape of the sealing ring. The depth of the annular groove is greater than the thickness of the filling body, thus forming a space for the sealing ring, and then the liquid raw material of the sealing ring is injected from the liquid inlet. When liquid appears at the liquid outlet, the injection of raw materials is stopped. After a period of time, the mold cover is opened, and the sealing ring is formed and can be taken out. One-time molding is fast, simple and convenient, the mold is simple to manufacture, and the quality of the molded sealing ring is high. One-time molding improves molding efficiency, the process is simple, and the production cost is reduced. However, the sealing ring injection mold has low flexibility in use. After the injection molding is completed, the sealing ring is embedded in the mold and is not convenient for quick removal, which affects the subsequent processing effect of the sealing ring. Taking out the sealing ring may cause damage to the sealing ring. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing ring injection mold with an automatic ejection structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a sealing ring injection mold with an automatic ejection structure, comprising a base, a limiting rod fixedly connected to the middle position of one side of the top of the base, a lifting mechanism provided inside one side of the base, an upper module provided outside the lifting mechanism, an injection port provided at the middle position of the top of the upper module, a lower mold provided at the middle position of the top of the base, pressing mechanisms provided on both sides of the inside of the lower mold, and a ring mold provided at the top of the pressing mechanism.

[0006] Preferably, the lifting mechanism includes a servo motor installed in the middle position of one side inside the base, and the output shaft end of the servo motor is installed with a threaded rod that is externally threadedly connected to the upper module.

[0007] Preferably, annular grooves are provided on both sides of the inner top of the lower mold, and electric push rods are evenly installed at equal distances at the bottom end of the inner part of the annular groove.

[0008] Preferably, the pressing mechanism includes a connecting rod whose bottom end is slidably connected to the inner bottom of the annular groove and whose top end is fixedly connected to the annular mold.

[0009] Preferably, the bottom end of the connecting rod is fixedly connected to a movable block, and the bottom end of the movable block is fixedly connected to a spring.

[0010] Preferably, through holes are evenly and equidistantly provided on the bottom end of the inner portion of the annular mold.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. This type of sealing ring injection mold with an automatic ejection structure has a pressing mechanism provided at the bottom end of the annular mold. When the lifting mechanism drives the upper module and the lower mold to close the mold, the annular mold can squeeze the spring below through the connecting rod and the movable block. At this time, the interior of the annular mold can be injection molded through the injection port. When the injection is completed, the upper module leaves the top of the annular mold. At this time, due to the reaction force of the squeezed spring, the annular mold and the internal sealing ring can be lifted up through the movable block and the connecting rod. At this time, the electric push rod is extended and retracted, and the internal sealing ring of the annular mold can be pushed out quickly from the through hole at the bottom end of the annular mold. The operation is simple and convenient, which improves the demoulding effect of the sealing ring after processing and improves the overall working efficiency of the sealing ring injection mold.

[0013] 2. This type of sealing ring injection mold with an automatic ejection structure has a lifting mechanism on one side of the base. When the servo motor in the lifting mechanism is started, the threaded rod can be driven to rotate. At this time, the upper module can be raised and lowered on the threaded rod. At the same time, a limit rod is provided on one side of the top of the base, which can stably limit the upper module during the lifting process, thereby ensuring the stability of the sealing ring injection mold during mold closing and improving the stability of subsequent sealing ring injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a front view structural diagram of the pressing mechanism of the present utility model;

[0016] Figure 3 This is a schematic diagram of the top view of the annular mold of the utility model;

[0017] Figure 4 It is a schematic cross-sectional structural diagram of the lower mold of the present invention.

[0018] In the figure: 1. Base; 101. Limit rod; 2. Lifting mechanism; 201. Servo motor; 202. Threaded rod; 3. Upper module; 301. Injection port; 4. Lower mold; 401. Annular groove; 402. Electric push rod; 5. Pressing mechanism; 501. Connecting rod; 502. Movable block; 503. Spring; 6. Annular mold; 601. Through hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 , this utility model provides two technical solutions:

[0021] Embodiment 1, a sealing ring injection mold with an automatic ejection structure, includes a base 1, a limiting rod 101 is fixedly connected to the middle position of one side of the top of the base 1, a lifting mechanism 2 is provided inside one side of the base 1, an upper module 3 is provided outside the lifting mechanism 2, an injection port 301 is provided at the middle position of the top of the upper module 3, a lower mold 4 is provided at the middle position of the top of the base 1, pressing mechanisms 5 are provided on both sides of the inside of the lower mold 4, and a ring mold 6 is provided at the top of the pressing mechanism 5.

[0022] Annular grooves 401 are provided on both sides of the top of the lower mold 4, and electric push rods 402 are evenly installed at the bottom of the annular groove 401 at equal distances. The annular mold 6 can be placed in the annular groove 401, and the electric push rods 402 can pass through the through hole 601 at the bottom of the annular mold 6 to push out the sealing ring inside the annular mold 6.

[0023] The pressing mechanism 5 includes a connecting rod 501 which is slidably connected to the bottom end of the annular groove 401 and is fixedly connected to the top end of the annular mold 6. The bottom end of the connecting rod 501 is fixedly connected to a movable block 502. The bottom end of the movable block 502 is fixedly connected to a spring 503. The upper module 3 moves downward to press the annular mold 6 into the annular groove 401. At this time, the annular mold 6 can squeeze the spring 503 through the connecting rod 501 and the movable block 502.

[0024] Through holes 601 are evenly spaced at the bottom of the annular mold 6 .

[0025] The main difference between the second embodiment and the first embodiment is that:

[0026] A sealing ring injection mold with an automatic ejection structure, wherein the lifting mechanism 2 includes a servo motor 201 installed in the middle position on one side inside the base 1, and a threaded rod 202 is installed on the output shaft end of the servo motor 201 and is threadedly connected to the upper module 3 on the outside. When the servo motor 201 is started, it can drive the threaded rod 202 to rotate. At this time, the upper module 3 outside the threaded rod 202 can be lifted and lowered on the threaded rod 202, and the upper module 3 can slide on the outside of the limit rod 101. At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art.

[0027] When the embodiment of the present application is in use: the servo motor 201 in the base 1 is started, which can drive the threaded rod 202 to rotate. At this time, the upper module 3 outside the threaded rod 202 can move downward on the threaded rod 202. At the same time, the downward movement of the upper module 3 can push the annular mold 6 at the top of the lower mold 4, so that the annular mold 6 is received in the annular groove 401 at the top of the lower mold 4. At the same time, the annular mold 6 can squeeze the spring 503 below through the connecting rod 501 and the movable block 502. At this time, injection molding can be performed on the annular mold 6 through the injection port 301 at the top of the upper module 3. When the injection molding is completed, the threaded rod 202 drives the upper module 3 to leave the top of the lower mold 4. At this time, due to the reaction force of the squeezed spring 503, the annular mold 6 and the internal sealing ring can be pushed out from the top of the lower mold 4 through the movable block 502 and the connecting rod 501, and started by the electric push rod 402, the sealing ring can be ejected from the inside of the annular mold 6 through the through hole 601 at the bottom end of the annular mold 6.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing ring injection mold with an automatic ejection structure, comprising a base (1), characterized in that: A limiting rod (101) is fixedly connected to the middle position of one side of the top of the base (1); a lifting mechanism (2) is provided inside one side of the base (1); an upper module (3) is provided outside the lifting mechanism (2); an injection port (301) is provided at the middle position of the top of the upper module (3); a lower mold (4) is provided at the middle position of the top of the base (1); pressing mechanisms (5) are provided on both sides of the interior of the lower mold (4); a ring mold (6) is provided at the top of the pressing mechanism (5); and a pressing mechanism (5) includes a plurality of rings. The bottom end of the annular groove (401) is slidably connected to a connecting rod (501) whose top end is fixedly connected to the annular mold (6); the bottom end of the connecting rod (501) is fixedly connected to a movable block (502); the bottom end of the movable block (502) is fixedly connected to a spring (503); annular grooves (401) are provided on both sides of the top end of the lower mold (4); electric push rods (402) are evenly installed at an equal distance at the bottom end of the annular groove (401); and through holes (601) are evenly provided at an equal distance at the bottom end of the annular mold (6).

2. The sealing ring injection mold with an automatic ejection structure according to claim 1, characterized in that: The lifting mechanism (2) comprises a servo motor (201) installed in the middle of one side of the base (1), and the output shaft end of the servo motor (201) is equipped with a threaded rod (202) that is externally threadedly connected to the upper module (3).

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