Sliding block core-pulling structure of injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold sliding block core-pulling structure which comprises a mold and a main mold cavity located on the mold, grooves located on two sides of the main mold cavity are formed in the mold, and sliding blocks capable of sliding are arranged in the grooves; the sliding block comprises a base, an inserting block and side die cavities, wherein the inserting block and the side die cavities are installed on the base, and the main die cavity and the two side die cavities form a complete die cavity. According to the sliding block core-pulling structure of the injection mold, the guide column is used as a sliding rail of the sliding block, so that the sliding block moves stably, in addition, the position of the sliding block is limited in cooperation with the metal block, the sliding block is adsorbed on the metal block after moving to a designated position, the sliding block is locked, the sliding block is prevented from moving, and therefore mold closing is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a core-pulling structure of a slider of an injection mold. Background Art

[0002] Injection mold is a molding method that combines injection and molding. Under a certain temperature, the completely molten plastic material is stirred by a screw, injected into the mold cavity with high pressure, and then cooled and solidified to obtain a molded product. Mold slider core pulling refers to the use of a slider core pulling mechanism in an injection mold to manufacture parts with special shapes and structures. The manufactured injection molded parts are not easy to demold, so the slider core pulling mechanism is used to separate the mold cavity of the mold to facilitate the export of the injection molded parts.

[0003] The slider core-pulling mechanism is mainly achieved by closing the movable mold and the fixed mold, and inserting the inclined guide pin into the slider, so that the slider moves during the insertion of the inclined guide pin, so that the slider core-pulling mechanism and the existing mold cavity form a complete mold cavity. When the movable mold and the fixed mold are separated, the inclined guide pin will be separated from the slider, and the slider will be moved, so that the slider will be separated from the existing mold cavity. However, after the inclined guide pin is separated from the slider, the position of the slider needs to be locked, otherwise the mold closing process will be hindered, affecting the insertion of the inclined guide pin, thereby making the mold difficult to close. For this reason, we propose an injection mold slider core-pulling structure. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a core-pulling structure for a slider of an injection mold.

[0005] The utility model provides the following technical solution: an injection mold slider core pulling structure, comprising a mold and a main mold cavity located on the mold, the mold is provided with grooves located on both sides of the main mold cavity, and a slidable slider is provided in the groove;

[0006] The slider comprises a base, an insert block and a side mold cavity mounted on the base, and the main mold cavity and the two side mold cavities form a complete mold cavity;

[0007] The insert block is provided with an oblique insertion hole for oblique core pulling. When the oblique insertion hole is inserted into the oblique guide column, the slider will slide in the groove along with the insertion of the oblique guide column.

[0008] A guide post is provided in the groove of the mold, and a hole for sliding with the guide post is provided on the base;

[0009] Positioning blocks are installed on both sides of the slider, a metal block for limiting the movement of the positioning block is installed in the groove, and a slide groove is opened at the bottom of the metal block, and magnets for adsorbing the positioning block are inlaid on both sides of the slide groove of the metal block.

[0010] Preferably, when the positioning block is adsorbed by the magnet, the slider has moved to the specified position.

[0011] Preferably, when the mold is closed, the mold cavity on the upper side of the slider and the main mold cavity form a complete mold cavity.

[0012] Preferably, when the mold is opened, the slider moves outward to separate the main mold cavity and the two side mold cavities.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The injection mold slider core-pulling structure uses a guide column as a slide rail for the slider to ensure stable movement of the slider. In addition, a metal block is used to limit the position of the slider so that the slider is adsorbed on the metal block after moving to a specified position, thereby being locked to prevent the slider from moving, thereby facilitating mold closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the slider of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the metal block of the utility model.

[0018] In the figure: 1. mold; 2. main mold cavity; 3. groove; 4. slider; 5. metal block; 6. slide groove; 7. magnet; 41. base; 42. plug block; 43. side mold cavity; 44. guide column; 45. hole; 46. positioning block; 47. oblique plug hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of known functions and known components to avoid unnecessary confusion of the concepts of the present invention.

[0020] See also Figure 1-3 , an injection mold slider core pulling structure, comprising a mold 1 and a main mold cavity 2 located on the mold 1, the mold 1 is provided with grooves 3 located on both sides of the main mold cavity 2, and a slidable slider 4 is provided in the groove 3;

[0021] The slider 4 includes a base 41, an insert block 42 and a side mold cavity 43 installed on the base 41. The main mold cavity 2 and the two side mold cavities 43 constitute a complete mold cavity; the insert block 42 is provided with an oblique insertion hole 47 for oblique core pulling. When the oblique insertion hole 47 is inserted into the oblique guide column, the slider 4 will slide in the groove 3 as the oblique guide column is inserted; a guide column 44 is provided in the groove 3 of the mold 1, and the base 41 is provided with a hole 45 that slides with the guide column 44.

[0022] Positioning blocks 46 are installed on both sides of the slider 4, a metal block 5 for limiting the movement of the positioning block 46 is installed in the groove 3, and a slide groove 6 is provided at the bottom of the metal block 5. Magnets 7 for adsorbing the positioning block 46 are inlaid on both sides of the slide groove 6 of the metal block 5. When the positioning block 46 is adsorbed by the magnet 7, the slider 4 has moved to the specified position.

[0023] During the mold closing process of the mold 1, the inclined guide post on the other mold will be inserted into the inclined insertion hole 47 on the insert block 42, and the slider 4 will move along the inclined guide post, so that the slider 4 slides on the guide post 44, and the positioning block 46 also slides in the slide groove 6 of the metal block 5. When the mold 1 is closed, the upper side mold cavity 43 of the slider 4 and the main mold cavity 2 form a complete mold cavity, and the positioning block 46 is also attracted by the magnet 7 at one end of the slide groove 6, thereby locking it. When the mold 1 is opened, the slider 4 moves outward to separate the main mold cavity 2 and the two side mold cavities 43, so that the injection molded parts in the main mold cavity 2 are easy to be exported. When the mold 1 is separated from the other mold, the positioning block 46 on the slider 4 is attracted by the magnet 7 at the other end of the slide groove 6 and locked, so that the slider 4 is still located at the specified position when the mold is closed next time. In this way, the inclined guide post on the other mold is inserted into the insert block 42.

[0024] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An injection mold slider core pulling structure, characterized in that: It comprises a mold (1) and a main mold cavity (2) located on the mold (1), the mold (1) is provided with grooves (3) located on both sides of the main mold cavity (2), and a slidable slider (4) is provided in the groove (3); The slider (4) comprises a base (41), an insert block (42) and a side mold cavity (43) mounted on the base (41), and the main mold cavity (2) and the two side mold cavities (43) form a complete mold cavity; The insert block (42) is provided with an oblique insertion hole (47) for oblique core pulling. When the oblique insertion hole (47) is inserted into the oblique guide column, the slider (4) will slide in the groove (3) as the oblique guide column is inserted. A guide column (44) is provided in the groove (3) of the mold (1), and a hole (45) is provided on the base (41) for sliding with the guide column (44); Positioning blocks (46) are installed on both sides of the slider (4), a metal block (5) for limiting the movement of the positioning block (46) is installed in the groove (3), and a slide groove (6) is provided at the bottom of the metal block (5), and magnets (7) for adsorbing the positioning block (46) are embedded on both sides of the slide groove (6) of the metal block (5).

2. The injection mold slider core pulling structure according to claim 1, characterized in that: When the positioning block (46) is adsorbed by the magnet (7), the slider (4) has moved to the designated position.

3. The injection mold slider core pulling structure according to claim 1, characterized in that: When the mold (1) is closed, the upper mold cavity (43) of the slider (4) and the main mold cavity (2) form a complete mold cavity.

4. The injection mold slider core pulling structure according to claim 1, characterized in that: When the mold (1) is opened, the slider (4) moves outward to separate the main mold cavity (2) and the two side mold cavities (43).

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