Injection molding machine convenient for replacing injection mold

Abstract

The utility model discloses an injection molding machine with an injection mold convenient to replace, which belongs to the technical field of injection molding machines and comprises a base and a mold detachably mounted in the base, a mounting cavity is arranged in the mold, and a mounting cylinder which penetrates through the mounting cavity and extends to the outer side of the mold is rotatably connected. One end of the mounting cylinder is rotationally mounted on the inner wall of the mold, the other end of the mounting cylinder penetrates through the inner wall of the mold and extends out of the mold, two groups of insertion blocks penetrating through the inner wall of the mold are arranged on two sides of the inner wall of the mounting cavity, a sliding groove communicated with the mounting cavity is formed in the inner wall penetrating through the mold, and the insertion blocks penetrate through the sliding groove. The mounting cylinder drives the driving assembly to rotate, the two inserting blocks installed on the driving assembly are inserted into the inserting holes of the base along with rotation of the mounting cylinder, detachable connection of the mold and the base is achieved, and operation is easy and convenient through rotation of the mounting cylinder.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding machines, and in particular relates to an injection molding machine which is convenient for replacing injection molds. Background Art

[0002] Injection molding machine, abbreviated as injection molding machine, is a molding equipment that injects heated and melted plastic or thermosetting material into a molding mold and then recools it so that the molten material is recooled and fixed into the mold shape.

[0003] After the injection molding machine finishes injection, the molten material injected into the mold cavity is kept in shape. Existing injection molding machines generally use screws to fix the mold when installing the mold. However, the operation of tightening the bolts when installing or disassembling the mold is relatively cumbersome, and the installation process takes a long time, which affects the production efficiency of the mold.

[0004] Therefore, we propose an injection molding machine which is convenient for replacing the injection mold to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem of complicated mold installation in the prior art and proposes an injection molding machine which is convenient for replacing the injection mold.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An injection molding machine that is easy to replace injection molds, including a base and a mold that can be detachably installed in the base, the mold is provided with an installation cavity, and a mounting cylinder that extends to the outside of the mold and is rotatably connected to the installation cavity is provided on both sides of the inner wall of the installation cavity. Two groups of plug blocks that penetrate the inner wall of the mold are provided on both sides of the inner wall of the installation cavity, and the sides of each group of two plug blocks facing away from each other are wedge-shaped, and the inner wall of the base is provided with slots that are compatible with the two groups of plug blocks. The inner wall of the installation cavity is provided with a driving component that is located below the installation cylinder and drives each group of two plug blocks to move toward each other, and a locking component that self-locks the installation cylinder is provided in the installation cylinder.

[0008] Preferably, the driving assembly includes a bidirectional screw rotatably installed between the inner walls on both sides of the installation cavity, the bidirectional screw and the installation cylinder are perpendicular to each other, a main bevel gear is fixedly installed on the installation cylinder, a slave bevel gear meshing with the main bevel gear is fixedly installed on the bidirectional screw, and both ends of the bidirectional screw are threadedly connected to a movable plate connected to the bottom surface of the plug block.

[0009] Preferably, the diameter of the main bevel gear is larger than the diameter of the slave bevel gear.

[0010] Preferably, a movable groove is provided on the inner bottom surface of the installation cavity, and the bottom end of the movable plate is inserted into the movable groove.

[0011] Preferably, the locking assembly comprises a threaded rod threadedly connected in the mounting tube, one end of the threaded rod extends out of the mounting tube, and an end of the inner wall of the base extending away from the threaded rod is provided with a threaded hole adapted to the threaded rod.

[0012] Preferably, an anti-slip convex strip is provided on the outer circumferential surface of one end of the mounting tube extending out of the mold.

[0013] To sum up, the technical effects and advantages of the utility model are as follows: the mold is placed in the base by setting the installation cylinder, plug-in block, slot and driving assembly, and then the installation cylinder is rotated to rotate with the driving assembly, so that the two plug-in blocks installed on the driving assembly are inserted into the plug-in holes of the base as the installation cylinder rotates, thereby realizing a detachable connection between the mold and the base, and the rotation of the installation cylinder makes the operation simple and convenient; through the setting of the locking assembly, when the installation cylinder drives the plug-in block to be fully inserted into the plug-in block, the installation cylinder is locked by the locking assembly, so that the mold and the base are installed more firmly, thereby improving the stability of the mold installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of an injection molding machine which is convenient for replacing the injection mold;

[0015] Figure 2 A schematic diagram of the internal structure of a mounting cavity in an injection molding machine that facilitates replacement of an injection mold;

[0016] Figure 3 A schematic diagram of a connection structure of a drive assembly in an injection molding machine that facilitates replacement of an injection mold;

[0017] Figure 4 The present invention is a schematic diagram of the structure of a locking component in an injection molding machine for facilitating replacement of injection molds.

[0018] In the figure: 1. base; 2. mold; 3. threaded rod; 4. mounting cylinder; 5. main bevel gear; 6. slave bevel gear; 7. bidirectional screw; 8. insert block; 9. moving plate; 10. moving groove; 11. threaded hole; 12. mounting cavity; 13. slot. DETAILED DESCRIPTION

[0019] 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.

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Reference Figure 1-Figure 2, an injection molding machine for convenient replacement of injection molds, comprising a base 1 and a mold 2 detachably installed in the base 1, a mounting cavity 12 is arranged inside the mold 2, a mounting cylinder 4 extending to the outside of the mold 2 is rotatably connected through the mounting cavity 12, one end of the mounting cylinder 4 is rotatably mounted on the inner wall of the mold 2, and the other end passes through the inner wall of the mold 2 and extends out of the mold 2, two groups of plug blocks 8 penetrating the inner wall of the mold 2 are arranged on both sides of the inner wall of the mounting cavity 12, a slide groove communicating with the mounting cavity 12 is opened through the inner wall of the mold 2, the plug blocks 8 all pass through the slide groove, the side of each group of two plug blocks 8 facing each other is wedge-shaped, the opposite ends of the two plug blocks 8 are rectangular, and the inner wall of the base 1 is opened. A slot 13 compatible with the two groups of plug blocks 8 is provided, and the mold 2 and the base 1 are connected by inserting the plug blocks 8 into the slot 13. The inner wall of the installation cavity 12 is provided with a driving assembly located below the installation cylinder 4 and driving each group of two plug blocks 8 to move toward each other. The installation cylinder 4 is provided with a locking assembly that self-locks the installation cylinder 4. By placing the mold 2 into the base 1 and then rotating the installation cylinder 4, the installation cylinder 4 is rotated with the driving assembly, so that the two plug blocks 8 installed on the driving assembly are inserted into the jacks of the base 1 as the installation cylinder 4 rotates, thereby realizing a detachable connection between the mold 2 and the base 1. The rotation of the installation cylinder 4 makes the operation simple and convenient.

[0022] Reference Figure 2-Figure 3 The driving assembly includes a bidirectional lead screw 7 rotatably installed between the inner walls on both sides of the mounting cavity 12. The bidirectional lead screw 7 is perpendicular to the mounting cylinder 4, and the bidirectional lead screw 7 is below the mounting cylinder 4. A main bevel gear 5 is fixedly installed on the mounting cylinder 4, and a slave bevel gear 6 meshing with the main bevel gear 5 is fixedly installed on the bidirectional lead screw 7. Both ends of the bidirectional lead screw 7 are threadedly connected with a moving plate 9 connected to the bottom surface of the plug block 8. By rotating the mounting cylinder 4, the main bevel gear 5 on the mounting cylinder 4 is rotated, and then the rotation of the main bevel gear 5 drives the meshing slave bevel gear 6 to rotate, and the rotation of the slave bevel gear 6 drives the bidirectional lead screw 7 to rotate, and the rotation of the bidirectional lead screw 7 drives the moving plates 9 at both ends of the bidirectional lead screw 7 to move, so that the plug block 8 at the top of the moving plate 9 passes through the mold 2 and extends into the slot 13 on the side wall of the base 1.

[0023] Reference Figure 2-Figure 3 The diameter of the main bevel gear 5 is larger than that of the slave bevel gear 6. Turn the mounting tube 4 several times to insert the insert block 8 on the bidirectional lead screw 7 into the slot 13.

[0024] Reference Figure 2-Figure 3 A moving groove 10 is provided on the inner bottom surface of the mounting cavity 12 , and the bottom end of the moving plate 9 is inserted into the moving groove 10 . When the moving plate 9 moves with the rotation of the bidirectional lead screw 7 , the moving groove 10 is used to limit the moving plate 9 .

[0025] Reference Figure 2-Figure 4The locking assembly includes a threaded rod 3 threadedly connected to the mounting tube 4, the threaded rod 3 is threadedly installed in the mounting tube 4, one end of the threaded rod 3 extends out of the mounting tube 4, and the inner wall of the base 1 is provided with a threaded hole 11 adapted to the threaded rod 3 at the end extending away from the threaded rod 3. The mold 2 is installed in the base 1 by rotating the mounting tube 4. At this time, the threaded rod 3 rotates synchronously with the mounting tube 4. After the mold 2 and the base 1 are installed, the threaded rod 3 is twisted to make the other end of the threaded rod 3 screw out from the mounting tube 4, and then screwed into the threaded hole 11 of the base 1, so as to fix the mounting tube 4 and the threaded rod 3, thereby improving the stability of the installation of the mold 2.

[0026] Reference Figure 4 The outer circumferential surface of one end of the mounting tube 4 extending out of the mold 2 is provided with an anti-skid convex strip, and then the mounting tube 4 is twisted, and the mounting tube 4 can be twisted more conveniently through the anti-skid convex strip.

[0027] Working principle:

[0028] By placing the mold 2 into the base 1, and then rotating the mounting cylinder 4, the threaded rod 3 in the mounting cylinder 4 rotates synchronously with the mounting cylinder 4. Due to the rotation of the mounting cylinder 4, the main bevel gear 5 on the mounting cylinder 4 rotates, and then the rotation of the main bevel gear 5 drives the meshing slave bevel gear 6 to rotate, and the rotation of the slave bevel gear 6 drives the two-way lead screw 7 to rotate, and the rotation of the two-way lead screw 7 drives the moving plate 9 at both ends of the two-way lead screw 7 to move, so that the plug block 8 at the top of the moving plate 9 passes through the mold 2 and extends into the slot 13 on the side wall of the base 1. After the mold 2 and the base 1 are installed, the threaded rod 3 in the mounting cylinder 4 is rotated, and the other end of the threaded rod 3 is screwed out of the mounting cylinder 4 by screwing the threaded rod 3, and then screwed into the threaded hole 11 of the base 1 to fix the mounting cylinder 4 and the threaded rod 3.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection molding machine for facilitating replacement of injection molds, comprising a base (1) and a mold (2) detachably mounted in the base (1), characterized in that: The mold (2) is provided with an installation cavity (12) inside, and a installation cylinder (4) extending to the outside of the mold (2) is rotatably connected to the installation cavity (12). Two groups of plug blocks (8) are provided on both sides of the inner wall of the installation cavity (12) and penetrate the inner wall of the mold (2). The two plug blocks (8) in each group are wedge-shaped on the opposite sides. The inner wall of the base (1) is provided with slots (13) adapted to the two groups of plug blocks (8). The inner wall of the installation cavity (12) is provided with a driving component located below the installation cylinder (4) and driving the two plug blocks (8) in each group to move toward each other. The installation cylinder (4) is provided with a locking component for self-locking the installation cylinder (4).

2. The injection molding machine for facilitating replacement of injection molds according to claim 1, characterized in that: The driving assembly comprises a bidirectional lead screw (7) rotatably mounted between inner walls on both sides of the mounting cavity (12); the bidirectional lead screw (7) and the mounting cylinder (4) are perpendicular to each other; a main bevel gear (5) is fixedly mounted on the mounting cylinder (4); a slave bevel gear (6) meshing with the main bevel gear (5) is fixedly mounted on the bidirectional lead screw (7); and both ends of the bidirectional lead screw (7) are threadedly connected to a movable plate (9) connected to the bottom surface of the plug block (8).

3. The injection molding machine for facilitating replacement of injection molds according to claim 2, characterized in that: The diameter of the main bevel gear (5) is larger than the diameter of the secondary bevel gear (6).

4. The injection molding machine for facilitating replacement of injection molds according to claim 2, characterized in that: The inner bottom surface of the installation cavity (12) is provided with a moving groove (10), and the bottom end of the moving plate (9) is inserted into the moving groove (10).

5. The injection molding machine for facilitating replacement of injection molds according to claim 1, characterized in that: The locking assembly comprises a threaded rod (3) threadedly connected in a mounting tube (4), one end of the threaded rod (3) extending out of the mounting tube (4), and a threaded hole (11) adapted to the threaded rod (3) is formed on an end of an inner wall of the base (1) extending away from the threaded rod (3).

6. The injection molding machine for facilitating replacement of injection molds according to claim 1, characterized in that: An anti-slip convex strip is provided on the outer circumferential surface of one end of the mounting tube (4) extending out of the mold (2).

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