Plastic mold capable of conveniently ejecting injection-molded part

Abstract

The plastic mould comprises a first mould and a second mould, a first mounting piece is arranged in the first mould, a second mounting piece is arranged in the second mould, an annular groove is formed in the inner side of the first mould, and a forming cavity is formed between the second mounting piece and the inner side of the annular groove. An annular piece is arranged on the inner side of the second installation piece, an annular plate is arranged on an annular groove, an installation groove is formed in the first mold, and a pushing piece is arranged on the installation groove. A second electric push rod pushes a push plate to abut against the middle position of the injection molding part, that is, the injection molding part is temporarily fixed, so that the injection molding part is prevented from being attached to the inner side of the second mold, after the second mold is moved away, the push plate and the annular part are moved away, the annular plate is pushed through a rear side spring, the outer side of the injection molding part is pushed through the annular plate, and the injection molding part is pushed in the middle through a push part; therefore, the injection-molded part is pushed out.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a plastic mold which is convenient for ejecting injection molded parts. Background Art

[0002] Injection molds are tools for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying to obtain a molded product.

[0003] During the use of the existing plastic mold, after the injection molded part in the mold is formed, the molded plastic product needs to be ejected by an ejection mechanism for removal of the product. However, after molding, the injection molded part will stick to the other side of the injection mold, that is, it is inconvenient for the ejection mechanism to eject it. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic mold which is convenient for ejecting injection molded parts, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A plastic mold for ejecting injection molded parts, comprising a first mold and a second mold, wherein an injection hole is provided on the first mold, a first mounting piece is provided inside the first mold, and a second mounting piece is provided inside the second mold, an annular groove is provided on the inner side of the first mold, the second mounting piece and the inner side of the annular groove are provided as a molding cavity, an annular piece is provided on the inner side of the second mounting piece, an annular plate is provided on the annular groove, a sliding tube is provided on the first mounting piece, a sliding rod is provided on the rear side of the annular plate, the sliding rod slides on the sliding tube, a mounting tube is provided on the inner side of the annular groove, a spring is provided on the inner side of the mounting tube, the annular plate and the first mounting piece are connected on both sides of the spring, the sliding tube is located on the inner side of the spring, a mounting groove is provided on the first mold, and a pushing piece is provided on the mounting groove.

[0007] In a preferred embodiment of the present invention, a first electric push rod is arranged on the outer side of the second mounting member, and the first electric push rod is connected to the front side of the annular member.

[0008] In a preferred embodiment of the present invention, a second electric push rod is arranged inside the second mounting member, and a push plate is arranged on the second electric push rod.

[0009] In a preferred embodiment of the present invention, an annular groove is provided on the inner side of the annular member, and a clamping ring is provided on the annular plate, and the clamping ring is attached to the annular groove.

[0010] In a preferred embodiment of the present utility model, a sliding block is arranged on the outer side of the annular plate, a sliding rail is arranged on the outer side of the annular groove, and the sliding block slides on the sliding rail.

[0011] In a preferred implementation manner of the present utility model, a third electric push rod is arranged inside the installation groove, and the third electric push rod is connected to the pushing member.

[0012] In a preferred embodiment of the present utility model, a sliding opening is arranged on the outer side of the installation groove, and a sliding roller is arranged on the outer side of the pushing member, and the sliding roller slides on the sliding opening.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0014] Beneficial effect: the mold pushes the annular part through the first electric push rod, so that the annular part presses the outer side of the injection molded part onto the annular plate, and the second electric push rod follows the first electric push rod to extend and retract, and pushes the injection molded part to the middle position through the push plate, that is, temporarily fixes the injection molded part, thereby preventing the injection molded part from sticking to the inner side of the second mold; after the second mold is removed, the push plate and the annular part are removed, and the annular plate is pushed by the rear spring, and the outer side of the injection molded part is pushed by the annular plate, and the pushing part is pushed by the third electric push rod, and the sliding roller slides on the sliding mouth to keep the pushing part stable, that is, pushes the injection molded part in the middle, thereby pushing the injection molded part out.

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A schematic diagram of the main structure of a plastic mold that is convenient for ejecting injection molded parts;

[0018] Figure 2 It is a schematic diagram of the inner structure of a first mold in a plastic mold for facilitating ejection of injection molded parts;

[0019] Figure 3 It is a schematic diagram of the connection structure between the second mounting member and the annular member in a plastic mold for facilitating ejection of injection molded parts;

[0020] Figure 4It is a schematic diagram of the connection structure between the first mounting member and the annular plate in a plastic mold for facilitating ejection of injection molded parts;

[0021] Figure 5 The present invention is a schematic diagram of a pusher structure in a plastic mold that facilitates ejection of injection molded parts.

[0022] In the figure: 1. first mold; 11. injection hole; 12. annular groove; 13. first mounting part; 14. mounting tube; 15. slide rail; 2. second mold; 21. molding cavity; 22. second mounting part; 23. first electric push rod; 24. second electric push rod; 25. push plate; 3. annular part; 31. annular groove; 32. retaining ring; 33. annular plate; 34. slider; 35. spring; 4. slide tube; 41. slide rod; 42. mounting groove; 43. slide mouth; 44. push part; 45. slide roller; 5. third electric push rod. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Please refer to Figure 1-5 The utility model discloses a plastic mold for ejecting injection molded parts, comprising a first mold 1 and a second mold 2. The first mold 1 and the second mold 2 are the main structures of the plastic mold, which are used to inject the injection molded parts. The first mold 1 is provided with an injection hole 11, that is, the plastic is fed through the injection hole 11. A first mounting member 13 is provided inside the first mold 1, and a second mounting member 22 is provided inside the second mold 2. The first mounting member 13 and the second mounting member 22 are mounting structures, that is, the first mounting member 13 and the second mounting member 22 are fixedly installed in the first mold 1 and the second mold 2 respectively. An annular groove 12 is provided on the inner side of the first mold 1, and a molding cavity 21 is provided on the inner side of the second mounting member 22 and the inner side of the annular groove 12, that is, the end of the injection hole 11 is in the molding cavity 21, and the injection molded parts are injection molded through the molding cavity 21.

[0025] An annular plate 33 is provided on the annular groove 12, and the annular plate 33 is precisely attached to the annular groove 12. An annular member 3 is provided on the inner side of the second mounting member 22, and a first electric push rod 23 is provided on the outer side of the second mounting member 22. The first electric push rod 23 is connected to the front side of the annular member 3. An annular groove 31 is provided on the inner side of the annular member 3. A snap ring 32 is provided on the annular plate 33, and the snap ring 32 is attached to the annular groove 31, so that the connection between the annular plate 33 and the annular member 3 is more precise, that is, after the injection molding, in the second mold 2 is moved away, the annular member 3 can be pushed by the first electric push rod 23, so that the annular member 3 presses the outer side of the injection molded part onto the annular plate 33, and a second electric push rod 24 is arranged inside the second mounting member 22, and a push plate 25 is arranged on the second electric push rod 24, that is, the second electric push rod 24 follows the first electric push rod 23 to extend and retract, and the push plate 25 pushes the injection molded part to the middle position of the injection molded part, so as to prevent the injection molded part from sticking to the inner side of the second mold 2, and the push plate 25 and the annular member 3 are moved away after the second mold 2 is moved away.

[0026] The first mounting member 13 is provided with a slide tube 4, a slide rod 41 is provided at the rear side of the annular plate 33, a mounting tube 14 is provided at the inner side of the annular groove 12, a spring 35 is provided at the inner side of the mounting tube 14, the two sides of the spring 35 connect the annular plate 33 and the first mounting member 13, the slide tube 4 is located at the inner side of the spring 35, a slider 34 is provided at the outer side of the annular plate 33, a slide rail 15 is provided at the outer side of the annular groove 12, the annular plate 33 is pushed by the rear side spring 35, the slider 34 slides on the slide rail 15, and the slide rod 41 slides on the slide tube 4, thereby ensuring that the annular plate The first mold 1 is provided with a mounting groove 42, a pushing piece 44 is provided on the mounting groove 42, a third electric push rod 5 is provided on the inner side of the mounting groove 42, the third electric push rod 5 is connected to the pushing piece 44, a sliding opening 43 is provided on the outer side of the mounting groove 42, a sliding roller 45 is provided on the outer side of the pushing piece 44, that is, the pushing piece 44 is pushed by the third electric push rod 5, and the sliding roller 45 slides on the sliding opening 43 to keep the pushing piece 44 stable, that is, the injection molded piece is pushed in the middle, thereby pushing the injection molded piece out.

[0027] The working principle of the utility model is as follows: plastic is fed through the injection hole 11, the end of the injection hole 11 is in the molding cavity 21, and the injection molded part is injection molded through the molding cavity 21. After the injection molded part is injection molded, that is, when the second mold 2 is removed, the annular part 3 is pushed by the first electric push rod 23, so that the annular part 3 presses the outer side of the injection molded part onto the annular plate 33, and the second electric push rod 24 follows the first electric push rod 23 to extend and retract, and is pushed to the middle position of the injection molded part through the push plate 25, that is, the injection molded part is temporarily fixed. , thereby preventing the injection molded part from sticking to the inner side of the second mold 2. After the second mold 2 is removed, the push plate 25 and the annular member 3 are removed, and the annular plate 33 is pushed by the rear spring 35. The slider 34 slides on the slide rail 15 and the slide bar 41 slides on the slide tube 4 to ensure the stability of the annular plate 33 when pushing, that is, the outer side of the injection molded part is pushed by the annular plate 33, and the push member 44 is pushed by the third electric push rod 5. The sliding roller 45 slides on the sliding mouth 43 to keep the push member 44 stable, that is, the injection molded part is pushed in the middle, thereby pushing the injection molded part out.

[0028] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A plastic mold for easily ejecting an injection molded part, comprising a first mold (1) and a second mold (2), characterized in that: The first mold (1) is provided with an injection hole (11), the first mold (1) is provided with a first mounting member (13) inside, the second mold (2) is provided with a second mounting member (22) inside, the first mold (1) is provided with an annular groove (12) inside, the second mounting member (22) and the inside of the annular groove (12) are provided with a molding cavity (21), the second mounting member (22) is provided with an annular member (3) inside the second mounting member (22), the annular groove (12) is provided with an annular plate (33), the first mounting member (13) is provided with A slide tube (4) is arranged, a slide rod (41) is arranged on the rear side of the annular plate (33), the slide rod (41) slides on the slide tube (4), a mounting tube (14) is arranged on the inner side of the annular groove (12), a spring (35) is arranged on the inner side of the mounting tube (14), the two sides of the spring (35) connect the annular plate (33) and the first mounting member (13), the slide tube (4) is located on the inner side of the spring (35), a mounting groove (42) is arranged on the first mold (1), and a pushing member (44) is arranged on the mounting groove (42).

2. A plastic mold for easily ejecting injection molded parts according to claim 1, characterized in that: A first electric push rod (23) is arranged on the outside of the second mounting member (22), and the first electric push rod (23) is connected to the front side of the annular member (3).

3. A plastic mold for easily ejecting injection molded parts according to claim 1, characterized in that: A second electric push rod (24) is arranged inside the second mounting member (22), and a push plate (25) is arranged on the second electric push rod (24).

4. A plastic mold for easily ejecting injection molded parts according to claim 1, characterized in that: An annular groove (31) is arranged on the inner side of the annular member (3), a snap ring (32) is arranged on the annular plate (33), and the snap ring (32) is attached to the annular groove (31).

5. A plastic mold for easily ejecting injection molded parts according to claim 1, characterized in that: A sliding block (34) is arranged on the outer side of the annular plate (33), a sliding rail (15) is arranged on the outer side of the annular groove (12), and the sliding block (34) slides on the sliding rail (15).

6. A plastic mold for easily ejecting injection molded parts according to claim 1, characterized in that: A third electric push rod (5) is arranged inside the installation groove (42), and the third electric push rod (5) is connected to the pushing member (44).

7. A plastic mold for easily ejecting injection molded parts according to claim 1, characterized in that: A sliding opening (43) is arranged on the outside of the installation groove (42), and a sliding roller (45) is arranged on the outside of the pushing member (44), and the sliding roller (45) slides on the sliding opening (43).

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