Magnet fixing bearing mechanism

Abstract

The utility model discloses a magnet fixing bearing mechanism which comprises a front mold core, and an injection molding cavity is formed in the front mold core; the upper end of the front mold core is also connected with a bearing insert; a convex block is arranged at an opening of the injection molding cavity; a groove matched with the bump is formed in the bottom of the bearing insert; the bearing insert is connected with the protruding block in an inserted mode through the groove. An annular groove is further formed in the upper end of the convex block; the inner side of the annular groove is connected with a magnetic attraction block. The multiple magnetic attraction blocks are arranged in a central symmetry mode. The height of the upper end of the magnetic attraction block is not lower than that of the upper end of the convex block; the lower end of the bearing insert is connected with the magnetic attraction block in an attraction mode. According to the utility model, the convex block is arranged at the upper end of the front mold core and is in inserted connection with the lower end of the bearing insert for limiting connection, and the plurality of magnetic attraction blocks are arranged in the annular groove at the upper end of the convex block to attract the lower end of the bearing insert, so that the stability of the bearing insert is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to a magnet-fixed bearing mechanism. Background Technology

[0002] Injection molding is used in the production of various plastic products. When inserts made of other materials are needed to connect to the outside of a plastic product, the inserts are usually first connected to the mold so that after injection molding, the inserts are directly fitted onto the outside of the product and ejected to complete the production. However, most existing inserts are connected to the front mold core by plugging, but in order to facilitate demolding, the tightness of the plugging is reduced, which makes the inserts easy to fall off and affects production efficiency. Utility Model Content

[0003] The purpose of this utility model is to solve the problems in the prior art by proposing a magnet-fixed bearing mechanism.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A magnet-fixed bearing mechanism includes a front mold core with an injection cavity; a bearing insert is connected to the upper end of the front mold core; a protrusion is provided at the opening of the injection cavity; a groove matching the protrusion is provided at the bottom of the bearing insert; the bearing insert is inserted into the protrusion through the groove; an annular groove is provided at the upper end of the protrusion; a magnetic block is connected to the inner side of the annular groove; multiple magnetic blocks are provided and centrally symmetrically arranged; and the upper end of the magnetic block is not lower than the upper end of the protrusion; the lower end of the bearing insert is attracted to the magnetic block.

[0006] Preferably, a support block is fixedly connected to the lower end of the magnetic block; a through groove communicating with the annular groove is provided on the front mold core; a telescopic rod is connected in the through groove; the magnetic block moves up and down in the annular groove driven by the telescopic rod.

[0007] Preferably, the lower end of the front mold core is provided with a mounting hole; the front mold core is connected to the outside through the mounting hole.

[0008] Preferably, the lower end of the front mold core is further provided with an injection hole; and the injection hole communicates with the injection cavity.

[0009] Compared with the prior art, the present invention provides a magnet-fixed bearing mechanism, which has the following advantages:

[0010] This magnet-fixed bearing mechanism uses a protrusion on the upper end of the front mold core to connect with the lower end of the bearing insert for a limiting connection. Multiple magnetic blocks are installed in the annular groove on the upper end of the protrusion to attract the lower end of the bearing insert, thereby increasing the stability of the bearing insert. The structure is simple and the operation is convenient. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the bearing insert of this utility model;

[0013] Figure 3 This is a top view of the present invention.

[0014] In the diagram: 10. Front mold core; 11. Injection cavity; 12. Mounting hole; 13. Injection hole; 21. Bearing insert; 22. Protrusion; 23. Groove; 24. Annular groove; 25. Magnetic block; 26. Support block; 27. Through groove; 28. Telescopic rod. Detailed Implementation

[0015] The following will refer to Figure 1-3 This invention describes a specific implementation of a magnet-fixed bearing mechanism, comprising a front mold core 10, on which an injection cavity 11 is provided; a bearing insert 21 is connected to the upper end of the front mold core 10; a protrusion 22 is provided at the opening of the injection cavity 11; a groove 23 matching the protrusion 22 is provided at the bottom of the bearing insert 21; the bearing insert 21 is inserted into the protrusion 22 through the groove 23; an annular groove 24 is provided at the upper end of the protrusion 22; a magnetic block 25 is connected to the inner side of the annular groove 24; multiple magnetic blocks 25 are provided and are centrally symmetrically arranged; and the upper height of the magnetic block 25 is not lower than the upper height of the protrusion 22; the lower end of the bearing insert 21 is attracted and connected to the magnetic block 25.

[0016] The lower end of the magnetic block 25 is fixedly connected to a support block 26; the front mold core 10 is provided with a through groove 27 communicating with the annular groove 24; a telescopic rod 28 is connected in the through groove 27, and the telescopic rod 28 can also be replaced with other telescopic structures according to the actual situation; the magnetic block 25 is driven to move up and down in the annular groove 24 by the telescopic rod 28, which facilitates the installation and removal of the magnetic block 25.

[0017] In conjunction with this, a mounting hole 12 is provided at the lower end of the front mold core 10; the front mold core 10 is connected to the outside through the mounting hole 12. The lower end of the front mold core 10 is also provided with an injection hole 13; and the injection hole 13 communicates with the injection cavity 11.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A magnet-fixed bearing mechanism, comprising a front mold core (10), characterized in that, The front mold core (10) is provided with an injection cavity (11); the upper end of the front mold core (10) is also connected to a bearing insert (21); the opening of the injection cavity (11) is provided with a protrusion (22); the bottom of the bearing insert (21) is provided with a groove (23) that matches the protrusion (22); the bearing insert (21) is inserted into the protrusion (22) through the groove (23); the upper end of the protrusion (22) is also provided with an annular groove (24); the inner side of the annular groove (24) is connected to a magnetic block (25); there are multiple magnetic blocks (25) and they are arranged symmetrically at the center; and the upper end of the magnetic block (25) is not lower than the upper end of the protrusion (22); the lower end of the bearing insert (21) is attracted and connected to the magnetic block (25).

2. The magnet-fixed bearing mechanism according to claim 1, characterized in that, The magnetic block (25) is fixedly connected to a support block (26) at its lower end; the front mold core (10) is provided with a through groove (27) communicating with the annular groove (24); a telescopic rod (28) is connected in the through groove (27); the magnetic block (25) moves up and down in the annular groove (24) driven by the telescopic rod (28).

3. The magnet-fixed bearing mechanism according to claim 1, characterized in that, The lower end of the front mold core (10) is provided with a mounting hole (12); the front mold core (10) is connected to the outside through the mounting hole (12).

4. The magnet-fixed bearing mechanism according to claim 1, characterized in that, The lower end of the front mold core (10) is also provided with an injection hole (13); and the injection hole (13) is connected to the injection cavity (11).

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