Plastic mold with double limiting structures

Abstract

The utility model discloses a plastic mould with a double limiting structure. The plastic mould comprises a first fixing plate, a sliding rod, a mould, a top plate, a limiting assembly, a positioning assembly, a mounting assembly, a second sliding rod and a second fixing plate, the first fixing plate and the second fixing plate are fixedly connected to the sliding rods in a sleeving mode correspondingly, and a second sliding rod is arranged in the mold and fixed to the top plate; the limiting assembly is fixedly arranged on the top plate, the top plate is fixed to the second fixing plate, the positioning assembly is arranged on the first fixing plate, and the mold is fixed to the first fixing plate through the mounting assembly. The mould and the top plate can be conveniently positioned and disassembled by matching the first fixing screw and the second fixing screw in the mounting assembly with the corresponding fixing hole and the mounting hole, and the mould and the top plate can be quickly and accurately positioned by matching and clamping the raised head, the hole and the clamping head in the positioning assembly; the problem that the plastic mold cannot be quickly positioned during installation and replacement is solved, and the installation efficiency is improved through cooperation of the ejector rod, the spring and the embedding block.

Description

Technical Field

[0001] The utility model relates to the technical field of mold manufacturing, in particular to a plastic mold with a double limiting structure. Background Art

[0002] The existing Chinese patent document with announcement number CN217573855U discloses a plastic mold with a double limit structure, including a base plate, four columns are symmetrically fixed on the top of the base plate, a top plate is fixed on the top of the four columns, and an upper mold base is fixed on the bottom of the top plate. The utility model arranges a limit block and an L-shaped limit rod on the surface of the lower mold base, a limit groove on the surface of the upper mold base and a limit slot on the bottom of the top plate, so that after the upper mold base and the lower mold base are closed, there will be no relative displacement between the two, thereby ensuring production quality. By arranging a screw rod, a cross plate, a driven sprocket, a motor, a driving sprocket, a chain, a T-shaped guide rod, a slide plate, a spring, a push rod, a fixed plate and a support leg, when the injection molding is completed, the lower mold base can be controlled to move downward, thereby separating it from the upper mold base, and during the downward movement, the push rod can be used to eject the molded product from the lower mold base.

[0003] However, in the above solutions and the prior art, some plastic molds lack replacement devices, and some plastic molds cannot be quickly positioned and installed during installation and replacement. Therefore, the mold positioning mechanism of the existing double-limit structure plastic mold still needs to be improved.

[0004] Therefore, the present invention proposes a plastic mold with a double limiting structure to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a plastic mold with a double limiting structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a plastic mold with a double limit structure, comprising a No. 1 fixed plate, a slide bar, a mold, a top plate, a limit assembly, a positioning assembly, a mounting assembly, a No. 2 slide bar, and a No. 2 fixed plate;

[0007] The first fixing plate and the second fixing plate are respectively sleeved and fixed on the slide bar, and a second slide bar is provided in the mold, and the second slide bar is fixed on the top plate;

[0008] The limiting assembly is fixedly arranged on the top plate, the top plate is fixed on the second fixing plate, the positioning assembly is arranged on the first fixing plate, and the mounting assembly fixes the mold on the first fixing plate.

[0009] Preferably, an injection port is provided on the mold, the limiting block in the limiting assembly is fixed on the top plate, a push rod is fixedly welded in the middle of the limiting block, a spring is welded on the end side of the limiting block, and the push rod is arranged inside the spring.

[0010] Preferably, an inserting block is welded to the other end of the spring in the position-limiting assembly, a sleeve hole is provided in the inserting block, and a push rod is sleeved in the sleeve hole.

[0011] Preferably, the No. 1 protrusion in the positioning assembly is arranged at the end of the No. 1 fixed plate, and the No. 2 protrusion in the positioning assembly is arranged at the end of the No. 2 fixed plate. A mold is clamped in the No. 1 protrusion, and a top plate is clamped in the No. 2 protrusion.

[0012] Preferably, the No. 1 convex head is evenly provided with a No. 1 hole, the No. 2 convex head is evenly provided with a No. 2 hole, the end of the mold is provided with a No. 1 clamping joint, the end of the top plate is provided with a No. 2 clamping joint, the No. 1 hole is adapted to be clamped with the No. 1 clamping joint, and the No. 2 hole is adapted to be clamped with the No. 2 clamping joint.

[0013] Preferably, the mounting assembly includes a No. 1 fixing screw, a No. 1 fixing hole, a No. 1 mounting hole, a No. 2 fixing screw, a No. 2 fixing hole, and a No. 2 mounting hole. The No. 1 fixing hole is arranged on a No. 1 fixing plate, and the No. 1 mounting hole is arranged at the end of the mold. The No. 1 fixing hole and the No. 1 mounting hole are fixedly threadedly connected by a No. 1 fixing screw.

[0014] Preferably, the No. 2 fixing hole is provided on the No. 2 fixing plate, the No. 2 mounting hole is provided at the end of the top plate, and the No. 2 fixing hole and the No. 2 mounting hole are fixedly threadedly connected by a No. 2 fixing screw.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the mold and the top plate are conveniently fixed and disassembled by cooperating with the No. 1 and No. 2 fixing screws in the installation component and the corresponding fixing holes and installation holes, and replacement is convenient; the mold and the top plate are quickly and accurately positioned by utilizing the adaption and clamping connection of the protrusion, hole and clamping joint in the positioning component, which solves the problem that some plastic molds lack replacement devices and overcomes the problem that the plastic mold cannot be quickly positioned during installation and replacement; the ejector rod, spring and interlocking block cooperate to buffer and stabilize the limit, prevent mold displacement and improve installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall disassembly of the structure of the utility model;

[0018] Figure 3 This is a partial enlarged view of point A of the utility model;

[0019] Figure 4 This is a partial enlarged view of point B of the utility model;

[0020] Figure 5 It is a schematic cross-sectional view of the overall structure of the utility model.

[0021] In the figure: No. 1 fixing plate 1, slide bar 2, mold 3, top plate 4, limit assembly 5, positioning assembly 6, installation assembly 7, No. 2 slide bar 8, No. 2 fixing plate 9, injection port 301, limit block 501, push rod 502, spring 503, splice block 504, sleeve hole 505, No. 1 protrusion 601, No. 2 protrusion 602, No. 1 hole 603, No. 2 hole 604, No. 1 clamping joint 605, No. 2 clamping joint 606, No. 1 fixing screw 701, No. 1 fixing hole 702, No. 1 installation hole 703, No. 2 fixing screw 704, No. 2 fixing hole 705, No. 2 installation hole 706. DETAILED DESCRIPTION

[0022] In order to clearly and completely describe the purpose and technical solutions of the present invention and make its advantages more clearly understood, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present invention, rather than all of the embodiments. They are only used to explain the embodiments of the present invention and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0023] Example 1: Please refer to Figure 1 and Figure 2 A plastic mold with a double limit structure includes a No. 1 fixed plate 1, a slide rod 2, a mold 3, a top plate 4, a limit assembly 5, a positioning assembly 6, an installation assembly 7, a No. 2 slide rod 8, and a No. 2 fixed plate 9; the No. 1 fixed plate 1 and the No. 2 fixed plate 9 are respectively sleeved and fixed on the slide rod 2, a No. 2 slide rod 8 is provided in the mold 3, and the No. 2 slide rod 8 is fixed on the top plate 4; the limit assembly 5 is fixed on the top plate 4, the top plate 4 is fixed on the No. 2 fixed plate 9, the positioning assembly 6 is provided on the No. 1 fixed plate 1, and the installation assembly 7 fixes the mold 3 on the No. 1 fixed plate 1.

[0024] An injection port 301 is provided on the mold 3, and a limit block 501 in the limit assembly 5 is fixed on the top plate 4. A push rod 502 is fixedly welded in the middle of the limit block 501, and a spring 503 is welded on the end side of the limit block 501. The push rod 502 is arranged inside the spring 503; an inlay block 504 is welded on the other end of the spring 503 in the limit assembly 5, and a sleeve hole 505 is provided in the inlay block 504, and the push rod 502 is sleeved in the sleeve hole 505.

[0025] No. 1 hole 602 is evenly arranged on the No. 1 convex head 601, No. 2 hole 604 is evenly arranged on the No. 2 convex head 603, No. 1 clamping joint 605 is provided at the end of the mold 3, and No. 2 clamping joint 606 is provided at the end of the top plate 4. No. 1 hole 602 is adapted to be clamped with No. 1 clamping joint 605, and No. 2 hole 604 is adapted to be clamped with No. 2 clamping joint 606.

[0026] During use, when the mold 3 is closing or opening the mold, the limit block 501 on the top plate 4 comes into play, and the ejector rod 502 in the middle of the limit block 501 is inside the spring 503. One end of the spring 503 is welded to the end side of the limit block 501, and the other end is welded with an inlay block 504. The sleeve hole 505 of the inlay block 504 is sleeved with the ejector rod 502. During the mold closing process, if the mold 3 is impacted by external force or other factors resulting in an abnormal relative displacement trend with the top plate 4, the ejector rod 502 will be subjected to pressure, and the spring 503 will buffer this pressure through its own elastic deformation to avoid damage between the mold 3 and the top plate 4 due to rigid collision or excessive displacement. At the same time, the inlay block 504 ensures the stability of the ejector rod 502 through the sleeve hole 505, maintains the effectiveness of the limiting structure, ensures the stability of the relative position between the mold 3 and the top plate 4, and ensures the normal progress of the injection molding process.

[0027] Example 2: Based on Example 1, please refer to Figures 2 to 4 The No. 1 convex head 601 in the positioning assembly 6 is set at the end of the No. 1 fixed plate 1, and the No. 2 convex head 602 in the positioning assembly 6 is set at the end of the No. 2 fixed plate 9. The mold 3 is clamped in the No. 1 convex head 601, and the top plate 4 is clamped in the No. 2 convex head 602.

[0028] During use, when installing the mold 3 and the top plate 4, the No. 1 protrusion 601 at the end of the No. 1 fixing plate 1 and the No. 2 protrusion 602 at the end of the No. 2 fixing plate 9 play a key positioning role, the No. 1 clamping joint 605 at the end of the mold 3 is adapted to be clamped with the No. 1 hole 602 evenly arranged on the No. 1 protrusion 601, and the No. 2 clamping joint 606 at the end of the top plate 4 is adapted to be clamped with the No. 2 hole 604 on the No. 2 protrusion 603. This design enables the mold 3 and the top plate 4 to quickly and accurately find the correct installation position during the installation process.

[0029] Example 3: Based on Example 2, please refer to Figure 3 and Figure 4 The mounting assembly 7 includes a No. 1 fixing screw 701, a No. 1 fixing hole 702, a No. 1 mounting hole 703, a No. 2 fixing screw 704, a No. 2 fixing hole 705, and a No. 2 mounting hole 706. The No. 1 fixing hole 702 is set on the No. 1 fixing plate 1, and the No. 1 mounting hole 703 is set at the end of the mold 3. The No. 1 fixing hole 702 and the No. 1 mounting hole 703 are fixedly threadedly connected by the No. 1 fixing screw 701.

[0030] The second fixing hole 705 is set on the second fixing plate 9, and the second mounting hole 706 is set at the end of the top plate 4. The second fixing hole 705 and the second mounting hole 706 are fixedly threadedly connected by a second fixing screw 704.

[0031] When in use, the mounting assembly 7 is used to firmly fix the mold 3 and the top plate 4 on the No. 1 fixing plate 1 and the No. 2 fixing plate 9 respectively. For the mold 3, the No. 1 fixing screw 701 is passed through the No. 1 fixing hole 702 on the No. 1 fixing plate 1 and the No. 1 mounting hole 703 at the end of the mold 3, and then tightened. The mold 3 is tightly fixed to the No. 1 fixing plate 1 through the threaded connection. For the top plate 4, the No. 2 fixing screw 704 is passed through the No. 2 fixing hole 705 on the No. 2 fixing plate 9 and the No. 2 mounting hole 706 at the end of the top plate 4 and tightened to achieve a firm connection between the top plate 4 and the No. 2 fixing plate 9. This fixing method not only ensures the stability of the mold 3 and the top plate 4 during work, but also when the mold 3 needs to be replaced or the equipment needs to be maintained, it can be easily disassembled by unscrewing the corresponding fixing screws. It is convenient and quick, which is conducive to improving the maintainability of the equipment and the flexibility of production.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic mold with a double limit structure, characterized by: It comprises a No. 1 fixed plate (1), a slide bar (2), a mold (3), a top plate (4), a limit assembly (5), a positioning assembly (6), a mounting assembly (7), a No. 2 slide bar (8), and a No. 2 fixed plate (9); The first fixing plate (1) and the second fixing plate (9) are respectively sleeved and fixed on the slide bar (2); a second slide bar (8) is provided in the mold (3); and the second slide bar (8) is fixed on the top plate (4); The limiting assembly (5) is fixedly arranged on the top plate (4), the top plate (4) is fixed on the second fixing plate (9), the positioning assembly (6) is arranged on the first fixing plate (1), and the mounting assembly (7) fixes the mold (3) on the first fixing plate (1).

2. The plastic mold with a double limit structure according to claim 1, characterized in that: The mold (3) is provided with an injection port (301), a limiting block (501) in the limiting assembly (5) is fixed on the top plate (4), a push rod (502) is fixedly welded in the middle of the limiting block (501), a spring (503) is welded on the end side of the limiting block (501), and the push rod (502) is arranged inside the spring (503).

3. The plastic mold with a double limiting structure according to claim 2, characterized in that: The other end of the spring (503) in the position-limiting assembly (5) is welded with an inserting block (504), a sleeve hole (505) is provided in the inserting block (504), and a push rod (502) is sleeved in the sleeve hole (505).

4. The plastic mold with a double limiting structure according to claim 1, characterized in that: The No. 1 protrusion (601) in the positioning assembly (6) is arranged at the end of the No. 1 fixing plate (1), and the No. 2 protrusion (602) in the positioning assembly (6) is arranged at the end of the No. 2 fixing plate (9). The mold (3) is clamped in the No. 1 protrusion (601), and the top plate (4) is clamped in the No. 2 protrusion (602).

5. The plastic mold with a double limiting structure according to claim 4, characterized in that: The No. 1 convex head (601) is evenly provided with a No. 1 hole (603), the No. 2 convex head (602) is evenly provided with a No. 2 hole (604), the end of the mold (3) is provided with a No. 1 clamping joint (605), the end of the top plate (4) is provided with a No. 2 clamping joint (606), the No. 1 hole (603) is adapted to be clamped with the No. 1 clamping joint (605), and the No. 2 hole (604) is adapted to be clamped with the No. 2 clamping joint (606).

6. The plastic mold with a double limiting structure according to claim 1, characterized in that: The mounting assembly (7) comprises a No. 1 fixing screw (701), a No. 1 fixing hole (702), a No. 1 mounting hole (703), a No. 2 fixing screw (704), a No. 2 fixing hole (705), and a No. 2 mounting hole (706); the No. 1 fixing hole (702) is arranged on the No. 1 fixing plate (1); the No. 1 mounting hole (703) is arranged at the end of the mold (3); the No. 1 fixing hole (702) and the No. 1 mounting hole (703) are fixedly threadedly connected via the No. 1 fixing screw (701).

7. The plastic mold with a double limiting structure according to claim 6, characterized in that: The No. 2 fixing hole (705) is provided on the No. 2 fixing plate (9), and the No. 2 mounting hole (706) is provided at the end of the top plate (4). The No. 2 fixing hole (705) and the No. 2 mounting hole (706) are fixedly threadedly connected via a No. 2 fixing screw (704).

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