Injection mold with efficient demolding function

By introducing a servo motor-driven lifting assembly and clamping system into the injection mold, efficient demolding and stable mold installation are achieved, solving the problems of low demolding efficiency and short ejector pin life in existing injection molds, and improving production efficiency and equipment lifespan.

CN223735336UActive Publication Date: 2025-12-30KUNSHAN YOURUIQUAN PRECISION COMPONENTS CO LTD
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Patent Information

Application Number
CN202423127794.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-12-30
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

Existing injection molds have low demolding efficiency and short ejector pin lifespan, which affects production efficiency and equipment lifespan.

Method used

The base is supported by four support rods, and equipped with a servo motor driven lifting and clamping components. Efficient demolding is achieved through four top parts and buffer springs, and the mold base is stabilized by the clamping components. Efficient mold installation and replacement are achieved by using a servo motor and lead screw system.

Benefits of technology

It improves the demolding efficiency of injection molds, extends the service life of ejector pins, simplifies the mold installation and replacement process, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223735336U_ABST
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Abstract

The utility model discloses an injection mold with an efficient demolding function, and belongs to the field of injection molds. Comprising a base; the four supporting rods are fixedly connected to the four corners of the bottom of the base; the mold seat is movably arranged on the base; the clamping assembly is arranged on the base and used for clamping the mold base; the number of the ejecting pieces is four, the ejecting pieces are distributed on the base in a matrix mode, movable holes are formed in the base, and the ejecting pieces are arranged on the movable holes; and the lifting assembly is arranged on the supporting rod and used for lifting the jacking piece. The injection mold has the beneficial effect that the injection mold with the efficient demolding function is provided.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of injection mold, in particular, relates to an injection mold with efficient demolding. BACKGROUND

[0002] Injection molding, also known as injection molding, is a molding method of injection and molding. The advantages of injection molding method are fast production speed, high efficiency, automatic operation, various colors and shapes, accurate product size, easy product updating, complex shape forming, injection molding is suitable for mass production and complex product forming processing field.

[0003] The structure of the product can refer to the injection mold with demolding structure in the technical field of injection mold disclosed in Chinese patent document 202323306124.6, which comprises a bottom mold, a top mold is arranged on the top of the bottom mold, an injection pipe is fixedly connected on the top of the top mold, an inner cavity is formed in the inner wall of the bottom mold, the top of the inner cavity is formed in a through manner, an inner mold is arranged in the inner cavity, a forming cavity is formed in the top of the inner mold, a plurality of demolding holes are uniformly formed in the bottom of the inner mold, the top of the plurality of demolding holes is connected with the bottom of the forming cavity in a through manner, and a plurality of mounting holes are formed in the bottom of the inner cavity which is matched with the bottom of the plurality of demolding holes. In the utility model, the injection molding work of the injection molding part is carried out by the inner mold and the forming cavity of the top mold matched with the bottom mold, after the injection molding is completed, the top mold is opened, the electric push rod is started, the injection workpiece in the forming cavity is pushed out from the bottom through the electric push rod, thereby completing the demolding work, improving the demolding efficiency of the injection molding part, and improving the injection molding efficiency.

[0004] However, in the patent, since the ejector rod is only provided with one, on the one hand, the demolding efficiency is not high, on the other hand, the service life of the ejector rod is also reduced.

[0005] Now an injection mold with efficient demolding is provided. Content of the utility model

[0006] The content part of the present application is used to introduce the concept in a simple form, which will be described in detail in the specific embodiment part. The content part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0007] To solve the technical problems mentioned in the above background section, some embodiments of the present application provide an injection mold with efficient demolding, comprising: a base; four support rods, which are fixed to the bottom corners of the base; a mold seat movably arranged on the base; a clamping assembly arranged on the base for clamping the mold seat; four top pieces arranged in a matrix on the base, the base is provided with a movable hole, and the top piece is arranged on the movable hole; a lifting assembly arranged on the support rod for lifting the top piece.

[0008] When the injection molding machine is finished, the servo motor can be started, so that the output shaft of the servo motor drives the first lead screw to rotate, and under the action of the two discs and the belt, the two first lead screws rotate at the same time, so that the lifting plate rises, the top cylinder and the top rod rise, the top rod passes through the movable hole to lift the mold, and four are arranged to realize efficient demolding. The sleeve is provided with a buffer spring, a top rod and a top cylinder, which plays a buffering role, thereby preventing damage to the top rod, and the mold seat can be conveniently replaced. When installing the mold seat, the handle can be rotated to rotate the disc, so that the bidirectional lead screw rotates, and under the action of the two screw grooves with opposite rotation directions on the bidirectional lead screw, the two connecting pieces are close to each other, so that the two clamping plates are close to each other and clamp and fix the mold seat.

[0009] Further, the clamping assembly comprises a clamping plate, two slide grooves are symmetrically formed on the base, a bidirectional lead screw is rotatably installed on the base, and the bidirectional lead screw is located on the slide groove, a connecting piece is slidably installed on the slide groove, and the clamping plate is fixed to the connecting piece, and two screw grooves with opposite rotation directions on the bidirectional lead screw are respectively threadedly connected with the two connecting pieces. The clamping plate corresponds to the mold seat.

[0010] Further, the connecting piece comprises a sliding plate and a connecting plate, the sliding plate is fixed to the connecting plate, the sliding plate is slidably installed on the slide groove, and the connecting plate is fixed to the clamping plate.

[0011] Further, one end of the bidirectional lead screw is fixed with a rotating disc, and the centrifugal end of the rotating disc is fixed with a handle. Further, the top piece comprises a top rod and a top cylinder, and the top rod is provided with a buffer spring.

[0012] Further, the lifting assembly comprises a lifting plate, the lifting plate is fixed between the four support rods, and the lifting plate is fixed to the top cylinder, a connecting seat is fixed between the four support rods, two first lead screws are rotatably installed on the connecting seat, and a driving assembly is arranged on the connecting seat.

[0013] Further, the driving assembly comprises a servo motor, the servo motor is fixedly connected on the connecting base, two first lead screws are symmetrically and rotatably installed on the connecting base, and the output shaft of the servo motor is fixedly connected with one of the first lead screws, and a linkage assembly is arranged between the two first lead screws.

[0014] Further, the linkage assembly comprises two discs and a belt, the two discs are fixedly connected on the two first lead screws respectively, and the belt is drivingly installed between the two first lead screws.

[0015] Further, the clamping plate is square.

[0016] Further, the handle is cylindrical.

[0017] The application has the beneficial effect of providing an injection mold with efficient demolding. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of this application are used to provide further understanding of the application, so that other features, objects and advantages of the application become more apparent. The illustrative embodiment drawings of the application and their descriptions are used to explain the application, and do not constitute an improper limitation on the application.

[0019] In addition, throughout the drawings, the same or similar reference signs represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn according to the scale.

[0020] In the drawings:

[0021] Figure 1 is a whole schematic view according to the embodiment of the application;

[0022] Figure 2 is a sectional view;

[0023] Figure 3 is a sectional view of the base;

[0024] Figure 4 is Figure 3 is an enlarged view of A of

[0025] Reference signs:

[0026] 1, base; 2, sliding groove; 3, support rod; 4, bidirectional lead screw; 5, connecting base; 6, first lead screw; 7, lifting plate; 8, top cylinder; 9, mold base; 10, movable hole; 11, clamping plate; 12, connecting plate; 13, rotating disc; 14, handle; 15, belt; 16, buffer spring; 17, ejector pin; 18, sliding plate; 19, servo motor. DETAILED DESCRIPTION

[0027] Embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0028] In addition, it should be further noted that only parts related to the present application are shown in the drawings for ease of description. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0029] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0030] It should be noted that the adjectives "one" and "multiple" mentioned in the present disclosure are illustrative and not limiting, and those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more".

[0031] The present disclosure will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0032] Referring to Figures 1-4 An injection mold with efficient demolding, comprising: a base 1, a support rod 3, a mold base 9, a clamping assembly, a top piece, a lifting assembly. The support rod 3 is provided in four, and is fixedly connected at the bottom four corners of the base 1. The mold base 9 is movably arranged on the base 1. The clamping assembly is arranged on the base 1 and is used for clamping the mold base 9. The top piece is provided in four and is arranged in a matrix on the base 1. The injection mold base 1 is provided with a movable hole 10, and the top piece is arranged on the movable hole 10. The lifting assembly is arranged on the support rod 3 and is used for lifting the top piece.

[0033] The injection mold clamping assembly comprises a clamping plate 11. Two sliding grooves 2 are symmetrically formed on the injection mold base 1. A bidirectional screw rod 4 is rotatably installed on the injection mold base 1, and the bidirectional screw rod 4 is located on the sliding groove 2. A connecting piece is slidably installed on the injection mold sliding groove 2, and the clamping plate 11 is fixedly connected to the connecting piece. Two screw grooves with opposite rotation directions on the bidirectional screw rod 4 are respectively threadedly connected to the two connecting pieces. The injection mold clamping plate 11 corresponds to the mold base 9.

[0034] The injection mold connecting piece comprises a sliding plate 18 and a connecting plate 12, the injection mold sliding plate 18 is fixedly connected with the connecting plate 12, the injection mold sliding plate 18 is slidingly installed on the sliding groove 2, and the connecting plate 12 is fixedly connected with the clamping plate 11. One end of the injection mold bidirectional screw rod 4 is fixedly connected with a rotating disc 13, and the centrifugal end of the injection mold rotating disc 13 is fixedly connected with a crank 14. The injection mold top piece comprises a top rod 17 and a top cylinder 8, and the injection mold top rod 17 is provided with a buffer spring 16.

[0035] The injection mold lifting assembly comprises a lifting plate 7, the injection mold lifting plate 7 is fixedly connected between the four supporting rods 3, and the lifting plate 7 is fixedly connected with the top cylinder 8, the connecting seat 5 is fixedly connected between the four supporting rods 3, two first screw rods 6 are rotatably installed on the injection mold connecting seat 5, and the driving assembly is arranged on the connecting seat 5.

[0036] The injection mold driving assembly comprises a servo motor 19, the injection mold servo motor 19 is fixedly connected on the connecting seat 5, two first screw rods 6 are symmetrically rotatably installed on the injection mold connecting seat 5, the output shaft of the servo motor 19 is fixedly connected with one of the first screw rods 6, and the linkage assembly is arranged between the two first screw rods 6.

[0037] The injection mold linkage assembly comprises two discs and a belt 15, the two injection mold discs are fixedly connected on the two first screw rods 6 respectively, and the belt 15 is drivingly installed between the two first screw rods 6. The injection mold clamping plate 11 is square. The injection mold crank 14 is cylindrical.

[0038] Working process: after the injection molding machine is injection molded, the servo motor 19 can be started, so that the output shaft of the servo motor 19 drives the first screw rod 6 to rotate, and under the action of the two discs and the belt 15, the two first screw rods 6 rotate at the same time, so that the lifting plate 7 rises, the top cylinder 8 and the top rod 17 rise, the top rod 17 passes through the movable hole 10 to lift the mold, and four are arranged, so that efficient demolding is realized, and the sleeve is provided with the buffer spring 16, the top rod 17 and the top cylinder 8, so as to play a buffering role, so as to prevent damage to the top rod 17, and the mold seat 9 can be conveniently replaced. When the mold seat 9 is installed, the crank 14 can be rotated, so that the disc rotates, the bidirectional screw rod 4 rotates under the action of the two threads with opposite directions on the bidirectional screw rod 4, so that the two connecting pieces are close to each other, so that the two clamping plates 11 are close to each other and clamp and fix the mold seat 9.

[0039] The above description is merely exemplary of some of the many possible embodiments of the present disclosure and of the principles thereof. It is to be understood that those skilled in the art will be able to devise various embodiments of the present disclosure without departing from the scope of the present disclosure as disclosed in the above description and attached claims, and that the scope of the present disclosure is not limited to the specific technical features described above. For example, the technical features described above can be replaced with other technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) to form other technical solutions.

Claims

1. An injection mold with efficient demolding, comprising: a base; four support rods, which are fixed to the bottom corners of the base; characterized in that: the injection mold with efficient demolding further comprises: a mold base movably arranged on the base; a clamping assembly arranged on the base for clamping the mold base; four top pieces arranged in a matrix on the base, wherein the base is provided with movable holes, and the top pieces are arranged on the movable holes; a lifting assembly arranged on the support rods for lifting the top pieces.

2. The injection mold with efficient demolding according to claim 1, characterized in that: the clamping assembly comprises a clamping plate, two symmetrical sliding grooves are formed in the base, a bidirectional screw rod is rotatably arranged on the base and located in the sliding grooves, a connecting piece is slidably arranged in the sliding grooves, and the clamping plate is fixed to the connecting piece, wherein two screw grooves with opposite rotation directions on the bidirectional screw rod are threadedly connected with the two connecting pieces respectively, and the clamping plate corresponds to the mold base.

3. The injection mold with efficient demolding according to claim 2, characterized in that: the connecting piece comprises a sliding plate and a connecting plate, the sliding plate is fixed to the connecting plate, the sliding plate is slidably arranged in the sliding groove, and the connecting plate is fixed to the clamping plate.

4. The injection mold with efficient demolding according to claim 2, characterized in that: one end of the bidirectional screw rod is fixed with a rotating disc, and the centrifugal end of the rotating disc is fixed with a crank handle.

5. The injection mold with efficient demolding according to claim 1, characterized in that: the top piece comprises a top rod and a top cylinder, and the top rod is provided with a buffer spring.

6. The injection mold with efficient demolding according to claim 1, characterized in that: the lifting assembly comprises a lifting plate, the lifting plate is fixed between the four support rods, the lifting plate is fixed to the top cylinder, a connecting seat is fixed between the four support rods, two first screw rods are rotatably arranged on the connecting seat, and a driving assembly is arranged on the connecting seat.

7. The injection mold with efficient demolding according to claim 6, characterized in that: the driving assembly comprises a servo motor, the servo motor is fixed to the connecting seat, two first screw rods are rotatably arranged on the connecting seat, the output shaft of the servo motor is fixed to one of the first screw rods, and a linkage assembly is arranged between the two first screw rods.

8. The injection mold with efficient demolding according to claim 7, characterized in that: the linkage assembly comprises two discs and a belt, the two discs are fixed to the two first screw rods respectively, and the belt is drivingly arranged between the two first screw rods.

9. The injection mold with efficient demolding according to claim 2, characterized in that: the clamping plate is square.

10. The injection mold with efficient demolding according to claim 4, characterized in that: the crank handle is cylindrical.

Citation Information

Patent Citations

  • Injection mold with demolding structure

    CN221496961U