Rubber ring injection mold with guiding mold opening function

Abstract

The utility model discloses a rubber ring injection mold with a guide mold opening function, relates to the field of rubber ring production, and aims to solve the problems that an existing rubber ring injection mold in the prior art needs to manually demold an injection-molded rubber ring after the rubber ring is injection-molded and cooled, but the manual demolding mode is easy to damage the rubber ring and further affects the use of the rubber ring. An annular injection molding groove is formed in the middle of the upper end face of the lower mold, an annular mop plate is movably connected to the middle of the interior of the annular injection molding groove, rectangular movable grooves communicate with the positions, at the lower ends of the two sides of the annular injection molding groove, in the lower mold, and L-shaped linkage rods are arranged in the two rectangular movable grooves correspondingly. Through the arrangement of the structures such as the L-shaped linkage rod, the rectangular lifting column, the guide rod and the circular guide groove, the automatic ejection function during mold opening of the mold is achieved, a rubber ring obtained after injection molding can be automatically disengaged from the mold, and damage to the rubber ring caused by manual demolding is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rubber ring production, concretely to a rubber ring injection mold with guiding mold opening function. BACKGROUND

[0002] Rubber ring, also known as O-ring, is an important sealing element, usually made of high polymer materials such as rubber, silicone rubber and fluororubber. It has a circular cross section and can tightly fill the gap between two contact surfaces, effectively preventing the leakage of substances and the intrusion of foreign matter. Rubber ring is widely used in mechanical equipment, automobiles, home appliances and other fields, not only playing a sealing role, but also buffering and damping, sound insulation and noise reduction. In addition, according to different materials and uses, rubber ring can be divided into various types, such as rubber O-ring, silicone waterproof ring, etc. to meet the needs of different scenes. Rubber ring production usually uses injection mold for injection molding.

[0003] For example, the authorized announcement number CN207682850U discloses an injection mold for vehicle-mounted charger rubber ring, which comprises an upper mold and a lower mold. The upper mold comprises a front mold plate and a faceplate. The upper surface of the faceplate is provided with a nozzle positioning hole. The inside of the front mold plate is provided with a front mold core. Two vertically symmetrical front mold core cavities are arranged in the front mold core in the front and rear direction. A guide sleeve is arranged on one side of the inside of the front mold core. The lower mold comprises a rear mold plate, a backing plate, a ejector plate, an ejector plate and a bottom plate. The inside of the rear mold plate is provided with a rear mold core. The utility model has the advantages of simple structure, simultaneous production of four charger rubber rings, effective saving of enterprise expenses, reduction of mold development cycle, great improvement of enterprise production efficiency, adjustment of the temperature inside the injection mold to keep the temperature at the best state, improvement of the quality of the output charger rubber ring and avoidance of the appearance of defective products.

[0004] The existing rubber ring injection mold cannot eject the rubber ring as a whole after cooling, and manual demolding is required after injection molding. Since the rubber ring is soft, manual demolding may damage the rubber ring and affect its use. Therefore, there is an urgent need to develop a rubber ring injection mold with guiding mold opening function to help people solve the existing problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a rubber ring injection mold with guiding mold opening function to solve the problem that the existing rubber ring injection mold cannot eject the rubber ring as a whole after cooling, and manual demolding is required after injection molding. Since the rubber ring is soft, manual demolding may damage the rubber ring and affect its use.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of rubber ring injection mold with guiding opening mold function, including lower mould, the lower mould upper end surface middle part is provided with annular injection slot, annular injection slot inside middle part is movably connected with annular ground plate, the lower mould inside and at annular injection slot both sides lower end are communicated with rectangular movable slot, two The inside of rectangular movable slot is provided with L type linkage rod, and one end of L type linkage rod is fixedly connected with rectangular lifting column, and the upper end of lower mould is connected with upper mould.

[0007] Preferably, the two L-shaped linkage rods extend to the inside of the annular injection slot on both sides and are fixedly connected to the lower end surface of the annular ground plate on both sides.

[0008] Preferably, the two rectangular lifting columns extend out of the upper end surface of the lower mould.

[0009] Preferably, the lower end surface of the two rectangular lifting columns is provided with a circular guide slot, and the inside of the lower end surface of the two rectangular movable slots is fixedly connected with a guide rod, and the upper end of the two guide rods is inserted into the circular guide slot of the lower end surface of the two rectangular lifting columns.

[0010] Preferably, the lower end surface of the annular injection slot is fixedly connected with four fixed cylinders in a circular array, the upper end of the fixed cylinder is provided with a telescopic rod, the lower end of the telescopic rod extends into the fixed cylinder, and the upper end of the four telescopic rods is fixedly connected with the lower end surface of the annular ground plate.

[0011] Preferably, the lower end surface of the annular injection slot and the lower end surface of the annular ground plate are provided with a spring outside the fixed cylinder and the telescopic rod.

[0012] Preferably, the two sides of the upper end surface of the lower mould are fixedly connected with guide columns, the inside of the upper mould is provided with circular guide through holes at the front and rear ends of both sides, the upper end of the four guide columns is inserted into the inside of the four circular guide through holes, and the inside of the upper mould is provided with an injection channel at one side of the middle part.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) In the utility model, the L-shaped linkage rod, the rectangular lifting column, the guide rod and the circular guide slot are arranged, the automatic ejection function is realized when the mold is opened, the rubber ring after injection molding can be automatically ejected from the mold, the damage of the rubber ring caused by manual stripping is avoided, and the quality and production efficiency of the product are improved.

[0015] (2) The utility model discloses, annularly ground drag board, fixed cylinder, telescopic link and spring etc. The design of structure not only provides stable support for the injection molding of rubber ring, and can push annularly ground drag board to rise through the elastic force of spring when the mold opens, realize the stable ejection of rubber ring, further improve the demolding efficiency and demolding quality of product

[0016] (3) The utility model discloses, guide pillar and round guide through -hole etc. The design of structure guarantees the accurate alignment of upper die and lower die when closing the mold, avoids the injection defect caused by the misplacement of mold, improves the forming precision and consistency of product. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view of the rubber ring injection mold with guiding mold opening function of the utility model;

[0018] Figure 2 It is the front view of the rubber ring injection mold with guiding mold opening function of the utility model;

[0019] Figure 3 It is the fixed cylinder side sectional view of the utility model;

[0020] Figure 4 It is the A detail enlarged view of the utility model.

[0021] In the drawing: 1, lower mold;101, annular injection groove;102, rectangular movable groove;103, guide rod;104, guide column;2, annular ground drag board;3, L type linkage rod;301, rectangular lifting column;302, round guide groove;4, fixed cylinder;401, telescopic link;402, spring;5, upper mold;501, round guide through -hole;502, injection channel. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments.

[0023] Please refer to Figures 1-4The utility model provides an embodiment: a kind of rubber ring injection mold with guiding opening mold function, including lower mould 1, the middle part of lower mould 1 upper end surface is provided with annular injection slot 101, annular injection slot 101 inside middle part is movably connected with annular ground drag plate 2, the inside of lower mould 1 and at the lower end of annular injection slot 101 both sides are communicated with rectangular movable slot 102, two rectangular movable slot 102 inside are provided with L type linkage rod 3, two L type linkage rods 3 inside respectively extend to the inside of annular injection slot 101 both sides and make two L type linkage rods 3 inside upper end respectively with annular ground drag plate 2 lower end surface both sides fixed connection, L type linkage rod 3 one end is fixedly connected with rectangular lifting column 301, the upper end of two rectangular lifting columns 301 all passes through the inside of lower mould 1 and extends out lower mould 1 upper end surface, lower mould 1 upper end is connected with upper mould 5, annular injection slot 101 inside lower end surface annular array is fixedly connected with four fixed cylinders 4, the upper end of fixed cylinder 4 is provided with telescopic rod 401, telescopic rod 401 lower end extends to the inside of fixed cylinder 4, the upper end of four telescopic rods 401 is fixedly connected with annular ground drag plate 2 lower end surface, the lower end surface between annular injection slot 101 inside and annular ground drag plate 2 lower end surface and at the outside of fixed cylinder 4 and telescopic rod 401 are all provided with spring 402, when upper mould 5 drops and is combined with lower mould 1, the upper end surface of upper mould 5 will first press down two rectangular lifting column 301 upper end surface and drive rectangular lifting column 301 to drop, simultaneously, rectangular lifting column 301 drives L type linkage rod 3 to drop synchronously, so that two L type linkage rods 3 drive annular ground drag plate 2 to drop in annular injection slot 101, when upper mould 5 drops and is combined with lower mould 1, annular ground drag plate 2 drops and makes annular injection slot 101 completely expose, when annular ground drag plate 2 drops, telescopic rod 401 is slid along the inside of fixed cylinder 4, and annular ground drag plate 2 is guided to rise, and then annular ground drag plate 2 will the rubber ring in annular injection slot 101 and is integrally demoulded, so as to be directly taken by personnel.

[0024] Please refer to Figure 2 And Figure 3 The lower end surface of two rectangular lifting columns 301 is provided with circular guide slot 302, the inside lower end surface of two rectangular movable slot 102 is fixedly connected with guide rod 103 one side, the upper end of two guide rods 103 is inserted into the inside of the circular guide slot 302 of the lower end surface of two rectangular lifting columns 301, when rectangular lifting column 301 is raised, it is slid along circular guide slot 302 by guide rod 103, and the lifting of rectangular lifting column 301 is guided, guarantee the stability of the lifting of rectangular lifting column 301.

[0025] Please refer to Figures 1-2The upper end surface of the lower mold 1 is fixedly connected with guide columns 104 at both sides of the front and rear ends, circular guide through holes 501 are arranged at the front and rear ends of both sides of the inside of the upper mold 5, the upper ends of the four guide columns 104 are respectively inserted into the inside of the four circular guide through holes 501, a injection channel 502 is arranged at the middle side of the inside of the upper mold 5, the lower mold 1 is guided to slide along the inside of the circular guide through hole 501 when lifting, the upper mold 5 is ensured to be accurately matched with the lower mold 1, and the lower end of the injection channel 502 is communicated with the inside of the annular injection groove 101 after the upper mold 5 is accurately matched with the lower mold 1.

[0026] Working principle: when the upper mold 5 is lowered and matched with the lower mold 1, the lower end surface of the upper mold 5 will first contact and press down the two rectangular lifting columns 301, so that the rectangular lifting columns 301 and the L-shaped linkage rod 3 thereon are synchronously lowered. The lowering of the L-shaped linkage rod 3 further drives the annular ground plate 2 to stably descend in the annular injection groove 101, and the annular ground plate 2 slides along the inside of the fixed cylinder 4 and compresses the spring 402. After the upper mold 5 is completely matched with the lower mold 1, the annular injection groove 101 is completely exposed, the molten rubber is first injected into the annular injection groove 101 through the injection channel 502, and the rubber is cooled and shaped in the annular injection groove 101. After the injection is completed, the upper mold 5 is lifted, at this time, the spring 402 releases energy and pushes the annular ground plate 2 to rise, and then the annular injection groove 101 is integrally ejected, which is convenient for personnel to directly take, does not need manual demolding, effectively avoids the damage of the rubber ring, and improves the production efficiency and product quality.

[0027] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A rubber ring injection mold with a mold opening guiding function, comprising a lower mold (1), characterized in that: The lower mold (1) upper end face middle part is provided with annular injection slot (101), the annilateral injection slot (101) inside middle part swing joint has annilateral drag board (2), the lower mold (1) inside and in annilateral injection slot (101) both sides lower end are communicated with rectangular movable slot (102), two The rectangular movable slot (102) inside are provided with L type linkage rod (3), one end of the L type linkage rod (3) is fixedly connected with rectangular lifting column (301), the upper end of the lower mold (1) is connected with the upper mold (5).

2. The rubber ring injection mold with a mold opening guide function according to claim 1, characterized in that: Two the L type linkage rod (3) inside respectively extend to annilateral injection slot (101) inside both sides and make two L type linkage rod (3) inside upper end respectively with annilateral drag board (2) lower end face both sides fixed connection.

3. The glue ring injection mold with a mold opening guide function according to claim 1, characterized in that: Two the rectangular lifting column (301) upper end all pass through the lower mold (1) inside and extend out the lower mold (1) upper end face.

4. The glue ring injection mold with a mold opening guide function according to claim 1, characterized in that: Two the rectangular lifting column (301) lower end face are provided with circular guide slot (302), two The rectangular movable slot (102) inside lower end face one side are fixedly connected with guide rod (103), two The guide rod (103) upper end respectively inserts two rectangular lifting column (301) lower end face circular guide slot (302) inside.

5. The rubber ring injection mold with a mold opening guide function according to claim 1, characterized in that: The annilateral injection slot (101) inside lower end face annilateral array fixedly connected with four fixed cylinders (4), the fixed cylinder (4) upper end all are provided with telescopic rod (401), the telescopic rod (401) lower end extends to the fixed cylinder (4) inside, four The telescopic rod (401) upper end all with annilateral drag board (2) lower end face fixed connection.

6. The glue ring injection mold with a mold opening guide function according to claim 5, characterized in that: The annilateral injection slot (101) inside lower end face and annilateral drag board (2) lower end face between and in fixed cylinder (4) and telescopic rod (401) outside all are provided with spring (402).

7. The glue ring injection mold with a mold opening guide function according to claim 1, characterized in that: The lower mold (1) upper end face both sides front and back two ends are all fixedly connected with guide column (104), the upper mold (5) inside both sides front and back two ends are provided with circular guide through hole (501), four The guide column (104) upper end respectively inserts four circular guide through hole (501) inside, the upper mold (5) inside middle part one side is provided with injection channel (502).

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