Ejection structure of plastic storage box injection mold

Abstract

The utility model belongs to the technical field of molds, and provides an ejection structure of a plastic storage box injection mold, which comprises a lower support plate, a fixed mold base is fixedly installed on the inner side of the lower supporting plate, a bottom supporting plate is movably installed on the inner side of the fixed mold base, a forming block is fixedly installed on the top of the bottom supporting plate, a hydraulic telescopic rod is movably connected to the inner side of the forming block, and the hydraulic telescopic rod is fixedly connected with the fixed mold base; through the arrangement of the lower supporting plate, the overall installation strength of the fixed mold base can be enhanced conveniently, through the arrangement of the fixed mold base, a complete storage box molding cavity can be formed after the upper mold base and the lower mold base are combined, so that molding of an overall storage box is facilitated, the bottom supporting plate and the molding block in the fixed mold base are movably installed, the bottom supporting plate is perfectly attached to the bottom of the fixed mold base, and the molding efficiency is improved. And forming of the storage box is not affected, a cavity formed by the forming block and the inner wall of the fixed mold base is in the shape of a side plate of the storage box, and the bottom supporting plate and the forming block can be controlled by the hydraulic telescopic rod to do lifting reciprocating motion.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an ejection structure of an injection mold for a plastic storage box. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives 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 high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine. After cooling and solidification, a molded product is obtained. Plastic storage boxes are also manufactured using injection molds.

[0003] For example, a multi-slider balanced ejection mechanism of a plastic storage box injection mold is proposed in the publication number CN220390214U, which includes a plastic storage box injection lower mold and a plastic storage box injection upper mold, and an injection molding part is provided in the plastic storage box injection upper mold. During the injection molding process, the plastic storage box injection lower mold and the plastic storage box injection upper mold are brought close to each other, and then the middle molding auxiliary slider assembly, the side auxiliary molding slide and the molding part are matched to form a complete cavity, and the molten material is injected through the injection molding part. After the injection molding is completed, the mold is opened, and the middle molding auxiliary slider assembly is first slid to the side away from the cavity, and then the side auxiliary molding slide is slid to the side away from the cavity. At this time, the positioning ejector is moved to eject the plastic part. The multi-slider structure is adopted, and there will be no jamming during ejection and demoulding, and the ejection fluency and precision are high.

[0004] However, although the above device can enhance ejection smoothness to a certain extent, in actual use, the above device has poor overall ejection capability for the molding mold, and the mold needs to be assembled and bonded again after being taken out of the molding, which reduces the efficiency of the molding during use.

[0005] Therefore, in order to solve the above problems, an ejection structure of an injection mold for a plastic storage box is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is that the prior art has the disadvantage of poor overall ejection capability, and for this reason, we propose an ejection structure of an injection mold for a plastic storage box.

[0007] The technical solution adopted by the utility model to solve its technical problems is: an ejection structure of an injection mold for a plastic storage box, comprising a lower support plate; a fixed mold seat is fixedly installed on the inner side of the lower support plate, a bottom support plate is movably installed on the inner side of the fixed mold seat, a molding block is fixedly installed on the top of the bottom support plate, a hydraulic telescopic rod is movably connected to the inner side of the molding block, the hydraulic telescopic rod is fixedly connected to the fixed mold seat, the molding block and the inner wall of the fixed mold seat form a mold cavity, a positioning rod is fixedly installed on the surface of the fixed mold seat, and a sealing strip is fixedly installed on the surface of the fixed mold seat.

[0008] Preferably, a support frame is fixedly mounted on the bottom of the lower support plate, and pillars are fixedly mounted on the four corners of the surface of the lower support plate.

[0009] Preferably, a top plate is fixedly mounted on the top of the column, and an electric telescopic rod is fixedly mounted inside the top plate.

[0010] Preferably, a movable mold base is fixedly mounted on the top of the electric telescopic rod, and an injection port is provided at the middle portion of the bottom of the movable mold base.

[0011] Preferably, embedded rods are fixedly installed around the bottom of the movable mold base, and a sealing groove is provided in the middle of the bottom of the movable mold base.

[0012] Preferably, an operation panel is fixedly mounted on one side of the column, and control buttons are fixedly mounted on the surface of the operation panel.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model facilitates to enhance the overall installation strength of the fixed mold base by setting the lower support plate. Through the setting of the fixed mold base, the combination of the upper and lower mold bases can form a complete storage box mold cavity to facilitate the molding of the overall storage box. The bottom support plate and the molding block inside the fixed mold base are both movably installed. The bottom support plate fits perfectly with the bottom of the fixed mold base and will not affect the molding of the storage box. The cavity formed by the molding block and the inner wall of the fixed mold base is the side panel shape of the storage box, and the bottom support plate and the molding block can be controlled by the hydraulic telescopic rod to perform lifting and reciprocating motion. After the internal mold is formed, it is only necessary to lift the bottom support plate and the molding block as a whole through the hydraulic telescopic rod to eject the entire formed storage box, so as to facilitate the user's subsequent pickup.

[0015] 2. The utility model facilitates to enhance the stability of the overall device after installation through the provision of the support frame, facilitates to lift the top plate to an appropriate height through the provision of the column rod to facilitate the lifting and lowering of the movable mold base, facilitates to enhance the installation strength of the electric telescopic rod through the provision of the top plate, facilitates the user to control the up and down of the movable mold base through the provision of the electric telescopic rod, facilitates to inject materials into the cavity formed by the movable mold base and the fixed mold base through the provision of the injection port, facilitates to inject materials into the cavity formed by the movable mold base and the fixed mold base through the provision of the embedded rod, and facilitates to perfectly fall into the hole of the positioning rod through the provision of the embedded rod, so that the upper and lower mold bases can be more tightly combined, thereby enhancing the overall precision of the device mold, and facilitates to further enhance the airtightness of the upper and lower mold bases after they are combined through the provision of the sealing groove and the sealing strip, thereby accelerating the solidification of the internal material, and facilitates the user to electrically control the device through the provision of the operation panel and the control button. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a frontal perspective schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a three-dimensional back view of the overall structure of the utility model;

[0019] Figure 3 It is a bottom-up stereoscopic schematic diagram of the movable mold base structure of the utility model;

[0020] Figure 4 It is a three-dimensional enlarged top view of the fixed mold base structure of the utility model;

[0021] Figure 5 It is an enlarged perspective schematic diagram of the cross-section of the forming block structure of the utility model.

[0022] In the figure: 1. lower support plate; 2. fixed mold base; 3. bottom support plate; 4. forming block; 5. hydraulic telescopic rod; 6. positioning rod; 7. sealing strip; 8. support frame; 9. column rod; 10. top plate; 11. electric telescopic rod; 12. movable mold base; 13. injection port; 14. embedded rod; 15. sealing groove; 16. operation panel; 17. control button. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The following is combined with Figures 1 to 5The present application is further described in detail. The embodiment of the present application discloses an ejection structure of an injection mold for a plastic storage box. The ejection structure comprises a lower support plate 1; a fixed mold base 2 is fixedly installed on the inner side of the lower support plate 1, a bottom support plate 3 is movably installed on the inner side of the fixed mold base 2, a forming block 4 is fixedly installed on the top of the bottom support plate 3, a hydraulic telescopic rod 5 is movably connected to the inner side of the forming block 4, the hydraulic telescopic rod 5 is fixedly connected to the fixed mold base 2, the forming block 4 and the inner wall of the fixed mold base 2 form a mold cavity, a positioning rod 6 is fixedly installed on the surface of the fixed mold base 2, and a sealing strip 7 is fixedly installed on the surface of the fixed mold base 2; the lower support plate 1 is used to enhance the overall installation strength of the fixed mold base 2, and a complete mold base can be formed by combining the upper and lower mold bases of the fixed mold base 2. The storage box mold cavity is to facilitate the molding of the overall storage box. The bottom support plate 3 and the molding block 4 inside the fixed mold base 2 are both movably installed. The bottom support plate 3 fits perfectly with the bottom of the fixed mold base 2 and will not affect the molding of the storage box. The cavity formed by the molding block 4 and the inner wall of the fixed mold base 2 is the side panel shape of the storage box, and the bottom support plate 3 and the molding block 4 can be controlled by the hydraulic telescopic rod 5 to perform lifting and reciprocating motion. After the internal mold is formed, it is only necessary to use the hydraulic telescopic rod 5 to lift the bottom support plate 3 and the molding block 4 as a whole to eject the entire molded storage box, so as to facilitate the user's subsequent pickup.

[0025] Reference Figure 1 and Figure 4 A support frame 8 is fixedly installed at the bottom of the lower support plate 1, and pillars 9 are fixedly installed at the four corners of the surface of the lower support plate 1; the support frame 8 is convenient for enhancing the stability of the overall device after installation, and the pillars 9 are convenient for lifting the top plate 10 to an appropriate height to facilitate the lifting and lowering of the movable mold base 12.

[0026] Reference Figure 2 and Figure 3 A top plate 10 is fixedly installed on the top of the column 9, and an electric telescopic rod 11 is fixedly installed inside the top plate 10; the top plate 10 is convenient for enhancing the installation strength of the electric telescopic rod 11, and the electric telescopic rod 11 is convenient for the user to control the up and down of the movable mold base 12.

[0027] Reference Figure 3 and Figure 2 A movable mold base 12 is fixedly mounted on the top of the electric telescopic rod 11, and an injection port 13 is provided at the middle portion of the bottom of the movable mold base 12; the injection port 13 facilitates the injection of materials into the cavity formed by the movable mold base 12 and the fixed mold base 2.

[0028] Reference Figure 3 and Figure 4Embedding rods 14 are fixedly installed around the bottom of the movable mold base 12, and a sealing groove 15 is set in the middle part of the bottom of the movable mold base 12; the embedding rod 14 can perfectly fall into the hole of the positioning rod 6, so that the upper and lower mold bases can be more tightly combined, thereby enhancing the overall precision of the device mold, and the sealing groove 15 and the sealing strip 7 can further enhance the airtightness of the upper and lower mold bases after the combination, thereby accelerating the solidification of the internal material.

[0029] Reference Figure 1 and Figure 2 An operation panel 16 is fixedly mounted on one side of the column 9, and a control button 17 is fixedly mounted on the surface of the operation panel 16; the operation panel 16 and the control button 17 facilitate the user to electrically control the device.

[0030] Working principle: When the device is used, the movable mold base 12 is first controlled downward by the electric telescopic rod 11, and the fluid molding material is injected from the injection port 13 into the cavity formed by the upper and lower mold bases. The combination of the upper and lower mold bases can form a complete storage box mold cavity to facilitate the molding of the overall storage box. The bottom support plate 3 and the molding block 4 inside the fixed mold base 2 are both movably installed. The bottom support plate 3 fits perfectly with the bottom of the fixed mold base 2 and will not affect the molding of the storage box. The cavity formed by the molding block 4 and the inner wall of the fixed mold base 2 is the side panel shape of the storage box, and the bottom support plate 3 and the molding block 4 can be controlled by the hydraulic telescopic rod 5 to perform lifting and reciprocating motion. After the internal mold is formed, it is only necessary to lift the bottom support plate 3 and the molding block 4 as a whole through the hydraulic telescopic rod 5 to eject the entire storage box after molding.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An ejection structure of an injection mold for a plastic storage box, characterized in that: The invention comprises a lower support plate (1); a fixed mold base (2) is fixedly installed on the inner side of the lower support plate (1); a bottom support plate (3) is movably installed on the inner side of the fixed mold base (2); a forming block (4) is fixedly installed on the top of the bottom support plate (3); a hydraulic telescopic rod (5) is movably connected to the inner side of the forming block (4); the hydraulic telescopic rod (5) is fixedly connected to the fixed mold base (2); the forming block (4) and the inner wall of the fixed mold base (2) form a mold cavity; a positioning rod (6) is fixedly installed on the surface of the fixed mold base (2); and a sealing strip (7) is fixedly installed on the surface of the fixed mold base (2).

2. The ejection structure of the plastic storage box injection mold according to claim 1, characterized in that: A support frame (8) is fixedly mounted on the bottom of the lower support plate (1), and pillars (9) are fixedly mounted on the four corners of the surface of the lower support plate (1).

3. The ejection structure of the plastic storage box injection mold according to claim 2, characterized in that: A top plate (10) is fixedly mounted on the top of the column (9), and an electric telescopic rod (11) is fixedly mounted inside the top plate (10).

4. The ejection structure of the injection mold for a plastic storage box according to claim 3, characterized in that: A movable mold base (12) is fixedly mounted on the top end of the electric telescopic rod (11), and an injection port (13) is arranged at the middle portion of the bottom of the movable mold base (12).

5. The ejection structure of the injection mold for a plastic storage box according to claim 4, characterized in that: Embedded rods (14) are fixedly installed around the bottom of the movable mold base (12), and a sealing groove (15) is arranged in the middle of the bottom of the movable mold base (12).

6. The ejection structure of the injection mold for a plastic storage box according to claim 2, characterized in that: An operating panel (16) is fixedly mounted on one side of the column (9), and a control button (17) is fixedly mounted on the surface of the operating panel (16).

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