Injection mold with stable guide mechanism

Abstract

The utility model discloses an injection mold with a stable guide mechanism, relates to the technical field of injection molds, and aims to solve the problems of short service life and poor stability caused by the fact that most of the conventional injection molds are guided by cylindrical guide columns and the outer walls are easily damaged due to long-time friction. A male die is arranged at the lower end of the upper die base, a lower die base is arranged below the male die, and a forming cavity is formed in the upper surface of the lower die base. The guide groove is formed in the corner of the upper die base and penetrates through the upper die base, a guide plate is arranged in the guide groove, and the lower end of the guide plate is connected with the lower die base in a welded mode; the roller groove is formed in the inner wall of the periphery of the guide groove, the roller groove and the upper die base are of an integrated structure, a rotating column is arranged in the roller groove, a rotating roller is arranged outside the rotating column, a rotating column groove is formed in the rotating roller, and a ball bearing is arranged in the rotating column groove.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a stable guiding mechanism. Background Art

[0002] The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors and patterns, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into complex-shaped parts. Injection molding is suitable for mass production and complex-shaped products and other molding processing fields;

[0003] For example, the Chinese patent (injection mold and injection mold system) with publication number CN112829209A includes an upper mold frame and an upper mold core assembly, the upper mold core assembly includes an upper mold core and a first connecting member, the first connecting member is arranged in the upper mold core and connected to the upper mold frame; the lower mold includes a lower mold frame and a lower mold core assembly, the lower mold core assembly includes a lower mold core and a second connecting member, the second connecting member is arranged in the lower mold core and connected to the lower mold frame. The connecting member fixes the upper mold core and the lower mold core from the inside, and the upper mold core or the lower mold core can be disassembled and repaired without removing the entire injection mold from the injection molding machine. During the repair process, the upper mold frame and the lower mold frame can be kept warm continuously. After the repair is completed, the injection mold can quickly restore the production temperature without waiting for the cooled injection mold to heat up as a whole. The upper mold core and the lower mold core can be quickly disassembled and assembled, which can effectively reduce the time consumed by the repair and improve the production efficiency. The present invention also discloses an injection mold system including the above-mentioned injection mold.

[0004] However, most of the existing injection molds are guided by cylindrical guide columns, and the outer wall is easily damaged by friction due to long-term friction, resulting in a short service life and poor stability. Therefore, it does not meet the existing needs. In this regard, we propose an injection mold with a stable guiding mechanism. Utility Model Content

[0005] The purpose of the utility model is to provide an injection mold with a stable guiding mechanism to solve the problem that most of the existing injection molds mentioned in the above background technology are guided by cylindrical guide columns, the outer wall is easily damaged by friction due to long-term friction, resulting in short service life and poor stability.

[0006] To achieve the above object, the utility model provides the following technical solution: an injection mold with a stable guiding mechanism, comprising: an upper mold base, a punch is arranged at the lower end of the upper mold base, a lower mold base is arranged below the punch, and a molding cavity is arranged on the upper surface of the lower mold base;

[0007] Also includes:

[0008] A guide groove is arranged at a corner of the upper die seat, and the guide groove runs through the upper die seat, a guide plate is arranged inside the guide groove, and the lower end of the guide plate is welded to the lower die seat;

[0009] The roller groove is arranged in the inner wall around the guide groove, and the roller groove and the upper mold base are an integrated structure. A rotating column is arranged inside the roller groove, and a rotating roller is arranged outside the rotating column.

[0010] Preferably, a rotating column groove is provided inside the rotating roller, a ball bearing is provided inside the rotating column groove, and the rotating column passes through the ball bearing, and the rotating roller is rotatably connected to the rotating column via the ball bearing.

[0011] Preferably, stabilizing seats are provided on both sides of the upper mold base, mounting seats are provided on both sides of the lower mold base, guide columns are provided at the upper ends of the mounting seats, column grooves are provided inside the stabilizing seats, and the stabilizing seats move up and down along the guide columns through the column grooves.

[0012] Preferably, an inner groove is provided on one side surface of the mounting seat, a single-head fastener is provided inside the inner groove, and the mounting seat is threadedly connected to the lower mold seat through the single-head fastener.

[0013] Preferably, a connecting seat is provided at the center of the upper end of the upper die seat, and the connecting seat is threadedly connected to the upper die seat via an external bolt.

[0014] Preferably, a base is provided at the lower end of the lower die seat, and the bottom of the base is threadedly fixed to the lower die seat by external bolts.

[0015] Preferably, the stabilizing seat is welded to the upper mold seat, and two stabilizing seats are provided.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model arranges a rotating roller inside the inner wall of the guide groove, and the guide groove and the guide plate are both square. When the upper mold base moves up and down, the rotating roller is driven to rotate by relying on the friction of the movement. The rotating roller is rotatably connected to the rotating column through a ball bearing, thereby improving the stability and smoothness of the rotation, thereby reducing the friction between the guide plate and the upper mold base, not easily damaged by friction, and increasing the service life. The square replaces the circle, and four rotating rollers are used to limit the four sides of the square, thereby improving the overall guiding stability and smoothness, and solving the problem that most of the existing injection molds are guided by cylindrical guide columns, the outer wall is rubbed for a long time, and is easily damaged by friction, resulting in a short service life and poor stability.

[0018] 2. By arranging stable seats on both sides of the upper die seat, and mounting seats on both sides of the lower die seat, guide columns are welded on the upper surface of the mounting seats, and the mounting seats are threadedly connected to the lower die seat through single-head fasteners. When the upper die seat and the lower die seat are aligned up and down, the guide plate is inserted into the guide groove, and the guide column is inserted into the column groove. In this way, when the upper die seat moves up and down, the guide plate and the guide column have a dual guiding effect, and the guide column has a stabilizing effect on the movement of the guide plate, thereby avoiding the deviation of the guide plate and improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall top view structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the connection structure between the rotating roller and the upper die seat of the utility model;

[0022] Figure 4 This is a schematic diagram of the left side structure of the mounting base of the utility model;

[0023] In the figure: 1. upper die seat; 2. lower die seat; 3. base; 4. molding cavity; 5. punch; 6. connecting seat; 7. guide groove; 8. guide plate; 9. stabilizing seat; 10. mounting seat; 11. guide column; 12. single-head fastener; 13. rotating roller; 14. roller groove; 15. rotating column groove; 16. rotating column; 17. ball bearing; 18. column groove; 19. inner groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: an injection mold with a stable guide mechanism, comprising: an upper mold base 1, a punch 5 is arranged at the lower end of the upper mold base 1, a lower mold base 2 is arranged below the punch 5, and a molding cavity 4 is arranged on the upper surface of the lower mold base 2;

[0026] Also includes:

[0027] A guide groove 7 is provided at a corner of the upper die base 1 and penetrates the upper die base 1. A guide plate 8 is provided inside the guide groove 7, and the lower end of the guide plate 8 is welded to the lower die base 2;

[0028] The roller groove 14 is arranged in the inner wall around the guide groove 7 , and the roller groove 14 and the upper die base 1 are an integral structure. A rotating column 16 is arranged inside the roller groove 14 , and a rotating roller 13 is arranged outside the rotating column 16 .

[0029] When the upper die seat 1 moves up and down, the friction force of the movement drives the rotating roller 13 to rotate. The rotating roller 13 is rotatably connected to the rotating column 16 through the ball bearing 17, which improves the stability and smoothness of the rotation, thereby reducing the friction between the guide plate 8 and the upper die seat 1, making it less likely to be damaged by friction, and increasing the service life. The square shape is replaced by the circle, and four rotating rollers 13 are used to limit the four sides of the square, thereby improving the overall guiding stability and smoothness. While moving, the stabilizing seat 9 moves up and down along the guide column 11 through the column groove 18, relying on the guide plate 8 and the guide column 11 to achieve a dual guiding effect, relying on the guide column 11 to stabilize the movement of the guide plate 8, avoid the guide plate 8 from deflecting, and improve stability.

[0030] See also Figure 3 A rotating column groove 15 is provided inside the rotating roller 13, a ball bearing 17 is provided inside the rotating column groove 15, and a rotating column 16 passes through the ball bearing 17. The rotating roller 13 is rotatably connected to the rotating column 16 through the ball bearing 17, thereby improving the stability and smoothness of the rotation of the rotating roller 13.

[0031] See also Figure 1 , 2 , stabilizing seats 9 are provided on both sides of the upper die base 1, mounting seats 10 are provided on both sides of the lower die base 2, guide columns 11 are provided on the upper ends of the mounting seats 10, column grooves 18 are provided inside the stabilizing seats 9, and the stabilizing seats 9 move up and down along the guide columns 11 through the column grooves 18. When the upper die base 1 and the lower die base 2 are aligned up and down, the guide plate 8 is inserted into the guide groove 7, and the guide column 11 is inserted into the column groove 18. In this way, when the upper die base 1 moves up and down, the guide plate 8 and the guide column 11 have a dual guiding effect, and the guide column 11 has a stabilizing effect on the movement of the guide plate 8, thereby preventing the guide plate 8 from deflecting and improving stability.

[0032] See also Figure 1 , 4 An inner groove 19 is provided on one side surface of the mounting seat 10, and a single-head fastener 12 is provided inside the inner groove 19. The mounting seat 10 is threadedly connected to the lower mold base 2 through the single-head fastener 12, which facilitates the disassembly of the mounting seat 10. After the single-head fastener 12 is fixed, one end is located inside the inner groove 19 without protruding outward, thereby improving safety.

[0033] See also Figure 1 A connecting seat 6 is provided at the center of the upper end of the upper die seat 1, and the connecting seat 6 is threadedly connected to the upper die seat 1 through an external bolt. The connecting seat 6 is connected to an external cylinder to realize the upper die seat 1 to move up and down.

[0034] See also Figure 1 A base 3 is provided at the lower end of the lower die base 2, and the bottom of the base 3 is threadedly fixed to the lower die base 2 by external bolts, thereby protecting the bottom of the lower die base 2.

[0035] See also Figure 1 The stabilizing seat 9 is welded to the upper die seat 1 , and two stabilizing seats 9 are provided for fixing two guide columns 11 , thereby stabilizing the movement of the upper die seat 1 .

[0036] Working principle: When in use, the mounting base 10 is threadedly connected to the lower die base 2 through the single-head fastener 12. When the upper die base 1 and the lower die base 2 are aligned up and down, the guide plate 8 is inserted into the guide groove 7, and the guide column 11 is inserted into the column groove 18. In this way, when the upper die base 1 moves up and down, the guide plate 8 and the guide column 11 have a dual guiding effect. The guide column 11 has a stabilizing effect on the movement of the guide plate 8 to avoid the deviation of the guide plate 8 and improve the stability. At the same time, when the upper die base 1 moves up and down, the friction of the movement is used to drive the rotating roller 13 to rotate. The rotating roller 13 is rotatably connected to the rotating column 16 through the ball bearing 17, which improves the stability and smoothness of the rotation, thereby reducing the friction between the guide plate 8 and the upper die base 1, not easy to be damaged by friction, and improving the service life. The square is replaced by the circle, and the four sides of the square are limited by four rotating rollers 13, thereby improving the overall guiding stability and smoothness.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An injection mold with a stable guiding mechanism, comprising an upper mold base (1), a punch (5) being arranged at the lower end of the upper mold base (1), a lower mold base (2) being arranged below the punch (5), and a molding cavity (4) being arranged on the upper surface of the lower mold base (2); Features: Also includes: A guide groove (7) is arranged at a corner of the upper die base (1), and the guide groove (7) passes through the upper die base (1). A guide plate (8) is arranged inside the guide groove (7), and the lower end of the guide plate (8) is welded to the lower die base (2); A roller groove (14) is arranged in the inner wall around the guide groove (7), and the roller groove (14) and the upper mold base (1) are an integrated structure. A rotating column (16) is arranged inside the roller groove (14), and a rotating roller (13) is arranged outside the rotating column (16).

2. The injection mold with a stable guiding mechanism according to claim 1, characterized in that: The rotating roller (13) is provided with a rotating column groove (15) inside, a ball bearing (17) is provided inside the rotating column groove (15), and the rotating column (16) passes through the ball bearing (17), and the rotating roller (13) is rotatably connected to the rotating column (16) via the ball bearing (17).

3. The injection mold with a stable guiding mechanism according to claim 1, characterized in that: The upper die seat (1) is provided with a stabilizing seat (9) on both sides, the lower die seat (2) is provided with a mounting seat (10) on both sides, the upper end of the mounting seat (10) is provided with a guide column (11), the interior of the stabilizing seat (9) is provided with a column groove (18), and the stabilizing seat (9) moves up and down along the guide column (11) through the column groove (18).

4. The injection mold with a stable guiding mechanism according to claim 3, characterized in that: An inner groove (19) is provided on one side surface of the mounting seat (10), a single-head fastener (12) is provided inside the inner groove (19), and the mounting seat (10) is threadedly connected to the lower die seat (2) via the single-head fastener (12).

5. The injection mold with a stable guiding mechanism according to claim 1, characterized in that: A connecting seat (6) is provided at the center of the upper end of the upper die seat (1), and the connecting seat (6) is threadedly connected to the upper die seat (1) via external bolts.

6. The injection mold with a stable guiding mechanism according to claim 1, characterized in that: A base (3) is provided at the lower end of the lower die seat (2), and the bottom of the base (3) is threadedly fixed to the lower die seat (2) via external bolts.

7. The injection mold with a stable guiding mechanism according to claim 3, characterized in that: The stabilizing seat (9) is welded to the upper die seat (1), and two stabilizing seats (9) are provided.

Images