Accurate positioning device for shell injection mold

Abstract

The utility model belongs to the technical field of shell injection molds, and particularly relates to a precise positioning device of a shell injection mold, which comprises an equipment body with an injection area, a lower mold and an upper mold are sequentially arranged in the injection area from bottom to top, and a positioning ring seat for positioning is arranged outside the bottom end of the upper mold. The positioning ring seat is arranged outside the top end of the lower die in a lifting and positioning sleeving mode based on lifting of the upper die, an arc angle for assisting positioning is further arranged on the inner side of the bottom end of the positioning ring seat, an anti-abrasion reinforcing ring seat is further embedded in the edge position of the top of the lower die, and the outer diameter of the reinforcing ring seat is equal to the inner diameter of the positioning ring seat. According to the utility model, through the additionally arranged positioning ring seat, before the upper die and the lower die are assembled, the positioning ring seat and the lower die are firstly positioned and assembled, so that the upper die is accurately positioned on the lower die, and the equipment is accurately positioned when the upper die and the lower die are assembled.

Description

Technical Field

[0001] This utility model belongs to the field of shell injection mold technology, and specifically relates to a precise positioning device for shell injection mold. Background Technology

[0002] The outer shell is produced using injection molds, which are used to mold the outer shell.

[0003] Existing injection molds consist of an upper mold, a lower mold, guide pillars, and a lifting mechanism. The upper mold has a guide sleeve fitted on the guide pillar. When the lifting mechanism is activated, it drives the guide sleeve on the upper mold to move up and down on the guide pillar, thereby allowing the upper mold and lower mold to perform mold closing or mold opening operations. However, the guide sleeve will wear out after long-term use, causing the upper mold to wobble on the guide pillar. Consequently, it cannot be accurately positioned when the mold is closed, causing misalignment between the upper mold and lower mold during mold closing, which affects the yield rate of the injection molded shell. Utility Model Content

[0004] The purpose of this invention is to provide a precise positioning device for a shell injection mold, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precise positioning device for an injection mold for a housing, comprising: a device body with an injection area, wherein a lower mold and an upper mold are arranged sequentially from bottom to top in the injection area, and a positioning ring seat for positioning is provided on the outside of the bottom end of the upper mold, and the positioning ring seat is positioned and sleeved on the outside of the top end of the lower mold based on the lifting and lowering of the upper mold.

[0006] Preferably, the inner side of the bottom end of the positioning ring seat is also provided with an arc angle for auxiliary positioning.

[0007] Preferably, a wear-resistant reinforcing ring seat is also embedded at the edge of the top of the lower mold, and the outer diameter of the reinforcing ring seat is equal to the inner diameter of the positioning ring seat.

[0008] Preferably, an annular groove for accommodating a reinforcing ring seat is provided at the edge of the top of the lower mold, and a plurality of second threaded holes extending into the lower mold are provided at equal intervals on the reinforcing ring seat, and each second threaded hole is provided with a fixing bolt for connecting the reinforcing ring seat and the lower mold.

[0009] Preferably, the positioning ring seat has a first threaded hole extending from the outside to the inside around its perimeter, and an adjusting bolt extending from the outside to the inside through each of the first threaded holes, with one end of each adjusting bolt abutting against the outer wall of the upper mold.

[0010] Preferably, the equipment body includes a top plate and a bottom plate, and each of the four corners between the top plate and the bottom plate is provided with a longitudinally arranged guide column for support. A lifting plate is raised and lowered on the four guide columns, and a hydraulic cylinder is provided between the top plate and the lifting plate. The upper mold is installed at the bottom of the movable plate.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] (1) By adding a positioning ring seat, the positioning ring seat and the lower mold are positioned and closed before the upper mold and the lower mold are closed, so that the upper mold is accurately positioned on the lower mold, and the equipment is accurately positioned when the upper mold and the lower mold are closed.

[0013] (2) By adding an arc angle, when the upper mold and the lower mold are closing, the arc angle facilitates the lower mold to enter the positioning ring seat, preventing the bottom of the positioning ring seat from falling directly onto the top of the lower mold, thereby preventing the positioning ring seat from colliding with the lower mold and preventing damage to the positioning ring seat and the lower mold.

[0014] (3) By adding a reinforcing ring seat, this utility model avoids wear on the lower mold when the positioning ring seat is closed, thereby improving the service life of the lower mold. Attached Figure Description

[0015] Figure 1 This is a front view of the present invention;

[0016] Figure 2 This is a cross-sectional view of the upper mold, lower mold, positioning ring seat, and reinforcing ring seat of this utility model;

[0017] Figure 3 This is a top view of the reinforcing ring seat and the lower mold of this utility model;

[0018] Figure 4 This is a top view of the positioning ring seat and the upper mold of this utility model;

[0019] In the diagram: 1. Hydraulic cylinder; 2. Top plate; 3. Lifting plate; 4. Guide column; 5. Base plate; 6. Lower mold; 7. Positioning ring seat; 8. Adjusting bolt; 9. Upper mold; 10. Arc angle; 11. First threaded hole; 12. Ring groove; 13. Fixing bolt; 14. Second threaded hole; 15. Reinforcing ring seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] refer to Figure 1-2 and Figure 4 As shown, the present invention provides a precise positioning device for an injection mold for a housing, comprising: a device body with an injection area, wherein a lower mold 6 and an upper mold 9 are arranged sequentially from bottom to top in the injection area, and a positioning ring seat 7 for positioning is provided on the outside of the bottom end of the upper mold 9, and the positioning ring seat 7 is positioned and sleeved on the outside of the top end of the lower mold 6 by the lifting and lowering of the upper mold 9.

[0022] Combination Figure 1 As shown, the equipment body includes a top plate 2 and a bottom plate 5. The four corners between the top plate 2 and the bottom plate 5 are provided with longitudinally arranged guide columns 4 for support. Lifting plates 3 are raised and lowered on the four guide columns 4. A hydraulic cylinder 1 is provided between the top plate 2 and the lifting plate 3. The upper mold 9 is installed at the bottom of the movable plate.

[0023] As described above, using the equipment body, upper mold 9, lower mold 6 and positioning ring seat 7 provided by this utility model, the positioning ring seat 7 is installed at the bottom end of the upper mold 9. The hydraulic cylinder 1 is started to drive the lifting plate 3 to descend on the guide column 4, thereby driving the upper mold 9 and the lower mold 6 to close. In this process, the positioning ring seat 7 and the lower mold 6 close first. After the mold is closed, the positioning ring seat 7 positions the upper mold 9 onto the lower mold 6.

[0024] Furthermore, to prevent the positioning ring seat 7 from impacting the lower mold 6 during mold closing, refer to... Figure 2 As shown, the inner side of the bottom end of the positioning ring seat 7 is also provided with an auxiliary positioning arc angle 10. The arc angle 10 provides a buffer for mold closing when the upper mold 9 and the lower mold 6 are misaligned, and the arc angle 10 also facilitates the insertion of the lower mold 6 into the positioning ring seat 7, preventing the positioning ring seat 7 from directly colliding with the lower mold 6.

[0025] Furthermore, to facilitate the replacement of the positioning ring seat 7, refer to... Figure 2 and Figure 4 As shown, the positioning ring seat 7 has first threaded holes 11 extending from the outside to the inside around its circumference. Each first threaded hole 11 has an adjusting bolt 8 extending from the outside to the inside, and one end of each adjusting bolt 8 abuts against the outer wall of the upper mold 9. After loosening the adjusting bolts 8, the positioning ring seat 7 can be detachably installed on the upper mold 9, thus facilitating the replacement of the positioning ring seat 7.

[0026] In this utility model, combined with Figure 2-3 As shown, a wear-resistant reinforcing ring seat 15 is also inlaid at the edge of the top of the lower mold 6 in this embodiment. The outer diameter of the reinforcing ring seat 15 is equal to the inner diameter of the positioning ring seat 7.

[0027] As described above, when the upper mold 9 and the lower mold 6 are misaligned, the reinforcing ring seat 15 abuts against the arc angle 10 when the upper mold 9 and the lower mold 6 are closed. The arc angle 10 and the reinforcing ring seat 15 guide the positioning ring seat 7, allowing the positioning ring seat 7 to be positioned and sleeved on the lower mold 6. During this process, the reinforcing ring seat 15 prevents the lower mold 6 from wearing on the positioning ring seat 7.

[0028] Furthermore, to facilitate the detachable installation of the reinforcing ring seat 15 onto the lower mold 6, refer to... Figure 2-3 As shown, an annular groove 12 for accommodating a reinforcing ring seat 15 is provided at the top edge of the lower mold 6. Multiple second threaded holes 14 extending into the lower mold 6 are equally spaced on the reinforcing ring seat 15. Each second threaded hole 14 contains a fixing bolt 13 connecting the reinforcing ring seat 15 and the lower mold 6. After removing the fixing bolt 13 from the second threaded hole 14, the reinforcing ring seat 15 can be removed from the annular groove 12, facilitating replacement of the reinforcing ring seat 15.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precise positioning device for an injection mold for a housing, characterized in that, include: The equipment body has an injection molding area, in which a lower mold (6) and an upper mold (9) are arranged sequentially from bottom to top. The upper mold (9) has a positioning ring seat (7) for positioning on the outside of its bottom end. The upper mold (9) is raised and lowered so that the positioning ring seat (7) is positioned and sleeved on the outside of the top of the lower mold (6).

2. The precise positioning device for a shell injection mold according to claim 1, characterized in that: The inner side of the bottom end of the positioning ring seat (7) is also provided with an auxiliary positioning arc angle (10).

3. The precise positioning device for a shell injection mold according to claim 1, characterized in that: The lower mold (6) is also fitted with a wear-resistant reinforcing ring seat (15) at the edge of the top, and the outer diameter of the reinforcing ring seat (15) is equal to the inner diameter of the positioning ring seat (7).

4. The precise positioning device for a shell injection mold according to claim 3, characterized in that: The lower mold (6) has an annular groove (12) at the top edge to accommodate the reinforcing ring seat (15). The reinforcing ring seat (15) has multiple second threaded holes (14) extending into the lower mold (6) at equal intervals. Each second threaded hole (14) is provided with a fixing bolt (13) connecting the reinforcing ring seat (15) and the lower mold (6).

5. The precise positioning device for a shell injection mold according to claim 1, characterized in that: The positioning ring seat (7) has a first threaded hole (11) extending from the outside to the inside around its perimeter. Each first threaded hole (11) has an adjusting bolt (8) extending from the outside to the inside. One end of each adjusting bolt (8) abuts against the outer wall of the upper mold (9).

6. The precise positioning device for a shell injection mold according to claim 1, characterized in that: The equipment body includes a top plate (2) and a bottom plate (5). The four corners between the top plate (2) and the bottom plate (5) are provided with longitudinally arranged guide columns (4) for support. Lifting plates (3) are raised and lowered on the four guide columns (4). A hydraulic cylinder (1) is provided between the top plate (2) and the lifting plate (3). The upper mold (9) is installed at the bottom of the movable plate.

Images